CN211047752U

CN211047752U - Electric cabinet for reducing electromagnetic interference

Info

Publication number: CN211047752U
Application number: CN201922160131.7U
Authority: CN
Inventors: 姬利杰
Original assignee: Shanxi Zhuangheng Electric Power Engineering Co ltd
Current assignee: Shanxi Zhuangheng Electric Power Engineering Co ltd
Priority date: 2019-12-05
Filing date: 2019-12-05
Publication date: 2020-07-17
Anticipated expiration: 2029-12-05

Abstract

The utility model discloses an electric cabinet for reducing electromagnetic interference, which comprises a box body, a grounding bus bar and a turntable; a rotating shaft is vertically and rotatably arranged in the middle of the interior of the box body, a plurality of turntables are fixedly arranged on the rotating shaft, and a plurality of mounting seats are uniformly arranged on the turntables and used for mounting electrical components; the left and right sides symmetry slidable mounting of box inside has two ground connection female arranging, evenly is provided with a plurality of binding post on the female row of ground connection, the electrical components of installation on the carousel with through binding post and the female electric connection of arranging of ground connection. This reduce electromagnetic interference's electric cabinet has two ground connection female rows through the left and right sides symmetry slidable mounting inside the box, evenly is provided with a plurality of binding post on the female row of ground connection, and the electrical components of installation on the carousel with through binding post and the female electric connection that arranges of ground connection, utilize the ground connection technique to eliminate electromagnetic interference.

Description

Electric cabinet for reducing electromagnetic interference

Technical Field

The utility model relates to an electric cabinet technical field specifically is a reduce electromagnetic interference's electric cabinet.

Background

The electric cabinet contains one or more low-voltage switchgear devices and the control, measurement, signalling, protection, regulation, etc. devices associated with them and is responsible for being assembled together completely with the structural components by the manufacturer.

Electromagnetic Interference (EMI) is electronic noise that interferes with the cable signal and reduces signal integrity, and is typically generated by sources of Electromagnetic radiation such as motors and machinery. Electromagnetic interference is an electromagnetic phenomenon which is discovered in the early days and is almost discovered simultaneously with the phenomenon of electromagnetic effect, and English scientists published a 'theoretical interference' article in 1981, which marks the beginning of the research on interference problems. In 1989, the british postal and telecommunications department studied the interference problem in communications, and the research on the interference problem started to be oriented to engineering and industrialization.

The electric cabinet among the prior art is relatively poor in anti electromagnetic interference's ability, and the electrical components of box inside very easily receives the influence to the practicality of electric cabinet has been reduced.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Not enough to prior art, the utility model provides a reduce electromagnetic interference's electric cabinet has solved the problem of proposing in the above-mentioned background art.

(II) technical scheme

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes:

An electric cabinet for reducing electromagnetic interference comprises a box body, a grounding busbar and a turntable; the box body is of a hollow structure, two box doors are symmetrically hinged to the front side of the box body, a handle is arranged on each box door, a rotating shaft is vertically and rotatably arranged in the middle of the interior of the box body, a plurality of rotating discs are fixedly arranged on the rotating shaft, and a plurality of mounting seats are uniformly arranged on the rotating discs and used for mounting electrical components; two grounding busbars are symmetrically and slidably mounted on the left side and the right side inside the box body, a plurality of wiring terminals are uniformly arranged on the grounding busbars, and electrical elements mounted on the rotary table are electrically connected with the grounding busbars through the wiring terminals; two screw rods are symmetrically and rotatably arranged on the upper side and the lower side of the interior of the box body, two external threads with opposite rotation directions are symmetrically arranged on the left side and the right side of each screw rod, two screw sleeves are symmetrically and threadedly connected to the left side and the right side of each screw rod, and the screw sleeves are slidably connected with the box body; the threaded sleeve is hinged with a push-pull rod, and the other end of the push-pull rod is hinged with the grounding busbar; the upper end and the lower end of the rotating shaft are in transmission connection with the two screws through two bevel gear sets respectively.

Optionally, a sliding groove is transversely formed in the back plate of the box body, and the grounding busbar is slidably mounted on the sliding groove through a sliding block.

Optionally, a driving motor for driving a screw to rotate is further installed on the outer side of the box body.

Optionally, a heat dissipation cavity is formed in the bottom of the box body, a heat dissipation fan is mounted inside the heat dissipation cavity, and an air inlet end of the heat dissipation fan is communicated with the inside of the box body through an air pipe.

Optionally, an anti-interference layer is further arranged in the inner wall of the box body, and the anti-interference layer comprises an anti-interference inner layer and an anti-interference outer layer.

Optionally, the inner interference-proof layer is made of nickel-zinc ferrite, and the outer interference-proof layer is made of manganese-zinc ferrite.

(III) advantageous effects

The utility model provides a reduce electromagnetic interference's electric cabinet possesses following beneficial effect:

1. This reduce electromagnetic interference's electric cabinet has two ground connection female rows through the left and right sides symmetry slidable mounting inside the box, evenly is provided with a plurality of binding post on the female row of ground connection, and the electrical components of installation on the carousel with through binding post and the female electric connection that arranges of ground connection, utilize the ground connection technique to eliminate electromagnetic interference.

2. This reduce electromagnetic interference's electric cabinet still is provided with the jam-proof layer in the inner wall of box, and the jam-proof layer includes that the jam-proof inlayer is made by nickel zinc ferrite with the jam-proof skin, and the jam-proof skin is made by manganese zinc ferrite, improves the interference killing feature of box.

Drawings

FIG. 1 is a schematic structural view of the present invention;

Fig. 2 is a schematic structural diagram of the middle rotary table of the present invention.

Fig. 3 is a front view of the present invention.

Fig. 4 is a partially enlarged schematic view of a portion a of fig. 1.

In the figure: the device comprises a box body 1, a grounding busbar 2, a sliding chute 3, a screw rod 4, a heat dissipation cavity 5, a heat dissipation fan 6, an air pipe 7, a threaded sleeve 8, a push-pull rod 9, a wiring terminal 10, a rotary table 11, a driving motor 12, a rotating shaft 13, a mounting seat 14, a box door 15, a handle 16, a heat dissipation port 17, an interference prevention layer 18, an interference prevention inner layer 19 and an interference prevention outer layer 20.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Example 1

Referring to fig. 1-3, the present invention provides a technical solution: an electric cabinet for reducing electromagnetic interference comprises a box body 1, a grounding busbar 2 and a turntable 11; the box body 1 is of a hollow structure, two box doors 15 are symmetrically hinged to the front side of the box body 1, and a handle 16 is arranged on each box door 15; a rotating shaft 13 is vertically and rotatably installed in the middle position inside the box body 1, a plurality of rotating discs 11 are fixedly installed on the rotating shaft 13, the rotating shaft 13 drives the rotating discs 11 to rotate inside the box body 1, and a plurality of installing seats 14 are uniformly arranged on the rotating discs 11 and used for installing electrical components;

Two grounding busbars 2 are symmetrically and slidably mounted on the left side and the right side inside the box body 1, a plurality of wiring terminals 10 are uniformly arranged on the grounding busbars 2, electrical components mounted on the rotary table 11 are electrically connected with the grounding busbars 2 through the wiring terminals 10, and electromagnetic interference is eliminated by using a grounding technology;

Specifically, in this embodiment, a sliding groove 3 is transversely formed in a back plate of the box body 1, and the ground busbar 2 is slidably mounted on the sliding groove 3 through a sliding block, so that the ground busbar 2 can slide left and right in the box body 1 along the sliding groove 3;

Two screw rods 4 are symmetrically and rotatably arranged on the upper side and the lower side inside the box body 1, two external threads with opposite rotation directions are symmetrically arranged on the left side and the right side of each screw rod 4, two screw sleeves 8 are symmetrically and threadedly connected to the left side and the right side of each screw rod 4, the screw sleeves 8 are slidably connected with the box body 1, and the two screw sleeves 8 are driven to move in opposite directions or move back to back by the rotation of the screw rods 4; the screw sleeve 8 is hinged with a push-pull rod 9, and the other end of the push-pull rod 9 is hinged with the grounding busbar 2, so that the movement of the screw sleeve 8 drives the grounding busbar 2 to move;

The upper end and the lower end of the rotating shaft 13 are respectively in transmission connection with the two screw rods 4 through two bevel gear sets, the screw rods 4 simultaneously drive the rotating shaft 13 to rotate when rotating, and further drive the rotating disc 11 to rotate, the two screw sleeves 8 drive the two grounding busbars 2 to move oppositely when moving oppositely, and at the moment, the screw rods 4 drive the rotating shaft 13 to rotate anticlockwise, so that all electrical components on the rotating disc 11 can be connected with the wiring terminals 10 on the grounding busbars 2;

Specifically, in this embodiment, a driving motor 12 for driving a screw 4 to rotate is further installed on the outer side of the box body 1;

The heat dissipation chamber 5 has been seted up to the bottom of box 1, and the internally mounted in heat dissipation chamber 5 has radiator fan 6, and radiator fan 6's air inlet end is through the inside intercommunication of tuber pipe 7 with box 1 for convulsions heat dissipation.

Example 2

The bottom of the box body 1 is provided with a heat dissipation cavity 5, a heat dissipation fan 6 is arranged inside the heat dissipation cavity 5, and the air inlet end of the heat dissipation fan 6 is communicated with the inside of the box body 1 through an air pipe 7 and used for air draft and heat dissipation;

Referring to fig. 4, the present embodiment is different from embodiment 1 in that an anti-interference layer 18 is further disposed in an inner wall of the box body 1, the anti-interference layer 18 includes an anti-interference inner layer 19 and an anti-interference outer layer 20, the anti-interference inner layer 19 is made of nickel-zinc ferrite, and the anti-interference outer layer 20 is made of manganese-zinc ferrite, so as to improve the anti-interference capability of the box body 1.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. An electric cabinet for reducing electromagnetic interference comprises a box body (1), a grounding busbar (2) and a turntable (11); box (1) is hollow structure, and the front side symmetry of box (1) articulates there are two chamber doors (15), is provided with handle (16), its characterized in that on chamber door (15): a rotating shaft (13) is vertically and rotatably arranged in the middle of the interior of the box body (1), a plurality of rotating discs (11) are fixedly arranged on the rotating shaft (13), and a plurality of mounting seats (14) are uniformly arranged on the rotating discs (11) and used for mounting electrical elements; the left side and the right side of the interior of the box body (1) are symmetrically provided with two grounding busbars (2) in a sliding manner, a plurality of wiring terminals (10) are uniformly arranged on the grounding busbars (2), and electrical elements arranged on the rotary table (11) are electrically connected with the grounding busbars (2) through the wiring terminals (10); two screw rods (4) are symmetrically and rotatably arranged on the upper side and the lower side of the interior of the box body (1), two external threads with opposite rotation directions are symmetrically arranged on the left side and the right side of each screw rod (4), two screw sleeves (8) are symmetrically and threadedly connected to the left side and the right side of each screw rod (4), and each screw sleeve (8) is slidably connected with the box body (1); the screw sleeve (8) is hinged with a push-pull rod (9), and the other end of the push-pull rod (9) is hinged with the grounding busbar (2); the upper end and the lower end of the rotating shaft (13) are respectively in transmission connection with the two screw rods (4) through two bevel gear sets.

2. The electric cabinet for reducing electromagnetic interference according to claim 1, wherein: the box body (1) is characterized in that a sliding groove (3) is transversely formed in a back plate of the box body (1), and the grounding busbar (2) is slidably mounted on the sliding groove (3) through a sliding block.

3. The electric cabinet for reducing electromagnetic interference according to claim 2, wherein: and a driving motor (12) for driving a screw rod (4) to rotate is further installed on the outer side of the box body (1).

4. The electric cabinet for reducing electromagnetic interference according to claim 1, wherein: the heat dissipation device is characterized in that a heat dissipation cavity (5) is formed in the bottom of the box body (1), a heat dissipation fan (6) is arranged inside the heat dissipation cavity (5), and an air inlet end of the heat dissipation fan (6) is communicated with the inside of the box body (1) through an air pipe (7).

5. An electric cabinet for reducing electromagnetic interference according to any one of claims 1 to 4, wherein: an anti-interference layer (18) is further arranged in the inner wall of the box body (1), and the anti-interference layer (18) comprises an anti-interference inner layer (19) and an anti-interference outer layer (20).

6. The electric cabinet for reducing electromagnetic interference according to claim 5, wherein: the inner interference-proof layer (19) is made of nickel-zinc ferrite, and the outer interference-proof layer (20) is made of manganese-zinc ferrite.