TWM486876U - Low electromagnetic interference adapter structure - Google Patents

Description

Low electromagnetic interference adapter structure

The present invention is a low electromagnetic interference adapter structure.

Electromagnetic interference is a phenomenon that often occurs when cables are confluent or shunted. Generally, special cable connection boxes are provided to reduce electromagnetic interference.

However, the general three-phase four-wire busbars transport large currents to the load area, and the cable junction box is used to connect the high-current shunt to multiple sets of cable lines to deliver power to different distribution boxes or electrical equipment.

Since multiple groups (2~6 groups) of four-wire lines enter the junction box space, sufficient space should be reserved for the installation site personnel to work, and when the busbar conductor interface is connected with the cable terminals, it must be fixed by metal bolts. Therefore, it is also necessary to increase the insulation space of the different potential conductors, so that the cable connection box for accommodating the above-mentioned bus bar conductor interface, cable lines and fixing bolts and the like becomes extremely large, which is disadvantageous for the use of high-tech plants with extremely valuable space.

However, in order to avoid the impedance imbalance between the three phases and the electromagnetic field unevenness, the three-phase cable is configured with the triangular configuration as much as possible, but because the bus bar conductors are arranged at the sandwich interval, the multiple sets of the triangular cable are arranged. When entering the cable connection box, the position must be reversed so that the in-phase cable can be concentrated and connected to the busbar conductor. At this time, the above impedance and electromagnetic field balance cannot be maintained, resulting in a difference in performance.

In view of this, how to reduce the electromagnetic interference phenomenon and reduce the occupied space has become a problem to be improved by the present invention.

In order to solve the above problems and achieve the object of the present invention, the technical means of the present invention is realized as follows, a low electromagnetic interference adapter structure comprising: a adapter (10); and a plurality of three-phase four-wire cables a wire (20); characterized in that: the adapter (10) is internally provided with four sets of busbar conductors (1) respectively corresponding to the 4-wire cable (20); and several pieces can be shunted with the cable (20) and a transfer conductor (2) connecting the bus bar conductor (1); and a magnetic conductive component (3) disposed outside the adapter (10); the bus bar conductor (1) and the transfer conductor ( 2), a lap conductor (21) is provided; the adapter (10) is internally filled with an insulating resin capable of fixing the adapter conductor (2) and the lap conductor (21) and leaving the circuit short-circuited ( 4).

More preferably, the adapter conductor (2) can be placed in conjunction with the number of wires in the cable (20) and can maintain the triangular arrangement of the cable (20).

More preferably, the lap conductor (21), which can match the number of tapped cables, lengthens the length of the joint, allowing the adapter body to tap more cables.

More preferably, the magnetic conductive component (3) is a high-conducting steel structure, and the magnetic conductive component (3) is constituted by a special magnetic circuit of the O-type.

More preferably, the insulating resin (4) is an epoxy resin.

According to the implementation of the above technical means, the present invention can achieve the following functions, functions and effects:

The first point: the use of adapters to reduce the space occupied by the cable junction box, reduce the size of the cable junction box, and also make it easier for maintenance personnel to integrate the line.

The second point: the new type is matched by the adapter conductor and the lap conductor, so as to achieve the triangle arrangement without changing the cable line, the magnetic field can be stabilized and the electromagnetic interference can be reduced.

The third point: The magnetic shielding component is arranged outside the new type, so that the magnetic field lines of the magnetic field generated by the conductive loop in the adapter can be circulated in the magnetic conductive component, and the magnetic flux can be more effectively reduced.

1‧‧‧ Busbar conductor

2‧‧‧Transitive conductor

21‧‧‧ lap conductor

3‧‧‧Magnetic components

4‧‧‧Insulating resin

10‧‧‧Adapter

20‧‧‧ cable

30‧‧‧Connecting box

Figure 1: Stereoscopic view of the old junction box with wiring.

Figure 2: Stereo view 2 of the old style connection box with wiring.

Figure 3: Three-dimensional schematic diagram of the old connection box with wiring.

Figure 4 is a perspective view of the first embodiment of the present invention.

Fig. 5 is a schematic view showing the implementation of the first embodiment of the present invention.

Fig. 6 is an exploded perspective view 1 of the first embodiment of the present invention.

Figure 7 is an exploded perspective view 2 of the first embodiment of the present invention.

The following is a detailed description of the embodiment shown in the following figure: As shown in Fig. 1 to Fig. 3, the figure reveals that the old type of connection box is bulky, and when the cable is shunted, the electric wire is broken up to make the electromagnetic field Unstable and unstable, it is easy to produce electromagnetic interference.

As shown in Figures 4 to 7, the figure discloses a low electromagnetic interference adapter structure comprising: a adapter (10); and a plurality of three-phase four-wire cable (20); The utility model is characterized in that: the adapter (10) is internally provided with four sets of busbar conductors (1) respectively corresponding to the four-wire cable (20); a plurality of pieces can be shunted and connected to the busbar conductors (20) (1) an adapter conductor (2); and a magnetically permeable component (3) disposed outside the adapter (10); between the busbar conductor (1) and the adapter conductor (2) There is a lap conductor (21); the adapter (10) is internally filled with an insulating resin (4) capable of fixing the directional conductor (2) and the lap conductor (21) and leaving the circuit short.

Among them, the novel can reduce the space occupied by the cable connecting box in the shunt cable, and can effectively reduce the generation of electromagnetic interference.

Secondly, the new adapter conductor is matched with the lap conductor, and the power supply of the cable can be shunted without changing the stable structure of the cable triangle configuration, which greatly reduces the electromagnetic interference phenomenon generated when the cable is connected in the connection box.

Furthermore, the present invention uses an insulating resin to fix the adapter conductor and the lap conductor, so that the adapter conductors are connected to different busbar conductors, and the output current can be stably maintained while the potential is not short-circuited, and finally the external magnetic component is matched. Minimize electromagnetic interference.

In the above, the transition conductor (2) can be arranged in accordance with the number of wires in the cable (20), and can maintain the triangular arrangement of the cable (20).

Among them, the three-phase four-wire cable is arranged by means of a triangular configuration, which can stabilize the magnetic field and reduce the occurrence of electromagnetic interference.

In the above, the lap conductor (21) can match the length of the tapped cable to lengthen the length of the joint, so that the adapter body can tap more cables.

Among them, the present invention can integrate a large number of cable wires, and use the lap conductor and the transfer conductor to integrate the current into the bus bar conductor.

In the above, the magnetic conductive component (3) is a high-conducting steel structure and is O The special magnetic circuit of the type constitutes the magnetic conductive component (3).

Wherein, the magnetic conductive component can receive the magnetic field lines of the magnetic field generated by the conductive loop in the joint, and circulate in the magnetic conductive component, thereby more effectively reducing the magnetic flux leakage.

In the above, the insulating resin (4) is an epoxy resin.

Among them, the epoxy resin in the adapter is several times higher than the air insulation capacity, as the insulation material between different potentials, and the overall sealed structure can avoid the influence of environmental humidity on the insulation capacity.

The structure, features and effects of the present invention are described in detail above based on the embodiments shown in the drawings. Since the novel and progressive requirements are met, a new patent application is filed according to law; however, the above description is only a preferred embodiment of the present invention. However, the present invention is not limited to the scope of implementation shown in the drawings, and therefore modifications that are in accordance with the meaning of the present invention are intended to fall within the scope of the present invention.

2‧‧‧Transitive conductor

3‧‧‧Magnetic components

10‧‧‧Adapter

Claims (5)

A low electromagnetic interference adapter structure comprising: a adapter (10); and a plurality of three-phase four-wire cable (20); characterized in that: the adapter (10) has 4 groups inside a busbar conductor (1) corresponding to four wires in the cable line (20); a plurality of adapter conductors (2) capable of being shunted and coupled to the busbar conductor (1); and a a magnetic conductive component (3) disposed outside the adapter (10); a gap conductor (21) disposed between the busbar conductor (1) and the transition conductor (2); (10) An insulating resin (4) capable of fixing the via conductor (2) and the lap conductor (21) and allowing the circuit to be short-circuited. The low electromagnetic interference adapter structure according to claim 1, wherein: the transfer conductor (2) can be arranged in accordance with the number of wires in the cable (20), and can maintain the triangular arrangement of the cable (20). . The low electromagnetic interference adapter structure according to claim 1, wherein: the lap conductor (21) can match the length of the tapped cable to lengthen the length of the joint, so that the adapter body can be tapped more. Cable. The low electromagnetic interference adapter structure according to claim 1, wherein the magnetic conductive component (3) is a high-conducting steel structure, and the magnetic conductive component (3) is formed by a special magnetic circuit of the O-type. The low electromagnetic interference adapter structure according to claim 1, wherein the insulating resin (4) is an epoxy resin.