CN211151247U

CN211151247U - Small current grounding line selection device

Info

Publication number: CN211151247U
Application number: CN201922076916.6U
Authority: CN
Inventors: 许来顺; 李晶鑫
Original assignee: Baoding Ruitai Electric Co ltd
Current assignee: Baoding Ruitai Electric Co ltd
Priority date: 2019-11-27
Filing date: 2019-11-27
Publication date: 2020-07-31
Anticipated expiration: 2029-11-27

Abstract

The utility model discloses a undercurrent ground connection route selection device, which comprises a housin, all be equipped with the rubber layer on a plurality of corners of casing, be equipped with the recess on the rubber layer, the recess endotheca is equipped with rubber arch, be equipped with the spring in the recess, the one end of spring bonds on the recess inner wall, the other end of spring bonds in rubber arch. The damping and shock absorption are carried out through the spring and the rubber layer, so that the shock absorption and protection are carried out on elements in the shell, and the condition that the internal elements are damaged due to the fact that the shell topples or falls is avoided; carry out layer upon layer through the multilayer dust screen and filter to can strain the dust in the outside air, avoid appearing the dust and cover the radiating condition of influence on electronic component.

Description

Small current grounding line selection device

Technical Field

The utility model relates to a undercurrent ground connection route selection technical field specifically is undercurrent ground connection route selection device.

Background

The microcomputer small current grounding line selection device is suitable for a small current grounding system with a neutral point not grounded or grounded through a resistor and an arc suppression coil. The device can be widely applied to power plants, transformer substations and hydropower stations of power systems and power supply systems of large-scale industrial and mining enterprises such as chemical industry, metallurgy, coal, railways and the like.

The utility model discloses a high accurate undercurrent ground connection route selection device of authorizing notice number CN208270702U, including chassis body and printer, chassis body's lateral wall one end fixedly connected with printer, the middle fixed small current termination that inlays in the middle of chassis body is just preceding, and chassis body's the middle fixed terminal that inlays in one end of just preceding has liquid crystal display, and the middle fixed terminal row that inlays of chassis body's back lateral wall.

At present, the existing microcomputer low-current grounding line selection device lacks a protection structure, when the microcomputer low-current grounding line selection device is toppled or dropped, the situation that the service life of the internal element of the microcomputer is shortened due to damage is easy to occur, and when the microcomputer low-current grounding line selection device dissipates heat, the dustproof effect of the microcomputer low-current grounding line selection device is poor, so that external dust enters the shell of the microcomputer low-current grounding line selection device, and the heat dissipation effect can be influenced when the dust covers the internal element of the.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a undercurrent ground connection route selection device to solve current computer undercurrent ground connection route selection device and lack protective structure, when it emptys or drops, appear its internal component easily and damage the condition that reduces life, and when its heat dissipation, the dustproof effect of computer undercurrent ground connection route selection device itself is relatively poor, make in outside dust gets into its casing, the dust covers the problem that can influence the radiating effect on casing internal element.

In order to achieve the above object, the utility model provides a following technical scheme: the small-current grounding line selection device comprises a shell, wherein rubber layers are arranged on a plurality of corners of the shell, grooves are formed in the rubber layers, rubber protrusions are arranged in the grooves in a sleeved mode, springs are arranged in the grooves, one ends of the springs are bonded to the inner walls of the grooves, and the other ends of the springs are bonded to the rubber protrusions.

Preferably, the shell is provided with a heat dissipation port, and a sealing layer is bonded on the inner side of the heat dissipation port.

Preferably, the heat dissipation port is internally sleeved with a plurality of frames, and the plurality of frames are all provided with dust screens.

Preferably, the frame is fixedly embedded with magnets, and the magnetic poles of the magnets on the opposite surfaces of the frames are opposite.

Preferably, the frame is provided with a support lug, the support lug is provided with a positioning rod, and the support lug and the positioning rod are provided with mounting bolts through threads.

Preferably, the shell is provided with a positioning groove, and the positioning groove is internally sleeved with a support lug and a positioning rod.

Preferably, a thread groove is formed in the positioning groove, and a mounting bolt is connected in the thread groove through threads.

Compared with the prior art, the beneficial effects of the utility model are that: the damping and shock absorption are carried out through the spring and the rubber layer, so that the shock absorption and protection are carried out on elements in the shell, and the condition that the internal elements are damaged due to the fact that the shell topples or falls is avoided; carry out layer upon layer through the multilayer dust screen and filter to can strain the dust in the outside air, avoid appearing the dust and cover the radiating condition of influence on electronic component.

Drawings

FIG. 1 is a front view of the overall structure of the present invention;

FIG. 2 is a front cross-sectional view of the overall structure of the present invention;

FIG. 3 is a side view of the overall structure of the present invention;

fig. 4 is a front cross-sectional view of the housing of the present invention;

FIG. 5 is a schematic view of the frame connection of the present invention;

fig. 6 is an enlarged view of a portion a in fig. 4 according to the present invention.

In the figure: the device comprises a shell 1, a rubber layer 2, a groove 3, a rubber bulge 4, a spring 5, a heat dissipation opening 6, a sealing layer 7, a frame 8, a dust screen 9, a magnet 10, a support lug 11, a positioning rod 12, a mounting bolt 13, a positioning groove 14 and a thread groove 15.

Detailed Description

Referring to fig. 1, fig. 2 and fig. 3, the present invention provides a technical solution: undercurrent ground connection route selection device, including casing 1, all there is rubber layer 2 through powerful adhesive bonding on a plurality of corners of casing 1, and the quantity on rubber layer 2 is 8, bonds respectively on 8 corners of casing 1, is equipped with recess 3 on the rubber layer 2, and the recess 3 endotheca is equipped with rubber bulge 4, is equipped with spring 5 in the recess 3, and the one end of spring 5 is passed through powerful adhesive bonding on the 3 inner walls of recess, and spring 5's the other end passes through powerful adhesive bonding on rubber bulge 4.

Referring to fig. 3, a heat dissipation opening 6 is formed in the housing 1, a sealing layer 7 is bonded to an inner side of the heat dissipation opening 6 by a strong adhesive, and the heat dissipation opening 6 and the frame 8 can be sealed by the sealing layer 7.

Referring to fig. 4 and 5, a plurality of frames 8 are sleeved in the heat dissipation opening 6, and dust screens 9 are mounted on the frames 8 through screws, so that when external air enters the casing 1, the external air can be filtered layer by layer through the plurality of dust screens 9, thereby filtering dust in the external air and avoiding the situation that the dust covers the electronic element to affect heat dissipation.

Referring to fig. 5, the frame 8 is fixedly embedded with the magnets 10, and the magnetic poles of the magnets 10 on the opposite surfaces of the frames 8 are opposite, so that the frames 8 can be fixed by the attraction between the magnets 10, the frames 8 can be separated, the dust screen 9 can be conveniently cleaned, and the situation that the dust screen 9 is blocked is avoided.

Referring to fig. 3, 4, 5 and 6, a support lug 11 is mounted on the frame 8 through a screw, a positioning rod 12 is mounted on the support lug 11 through a screw, a mounting bolt 13 is mounted on the support lug 11 and the positioning rod 12 through a screw, threaded holes are formed in the support lug 11 and the positioning rod 12, and the mounting bolt 13 is connected in the threaded hole through a screw.

Referring to fig. 4 and 6, a positioning groove 14 is formed in the housing 1, the support lug 11 and the positioning rod 12 are sleeved in the positioning groove 14, and the positioning rod 12 is inserted into the positioning groove 14, so that the mounting bolt 13 and the thread groove 15 can be quickly positioned, and the mounting is facilitated.

Referring to fig. 6, a thread groove 15 is formed in the positioning groove 14, and a mounting bolt 13 is connected to the thread groove 15 through a thread.

The utility model discloses when concrete implementation: when the low-current grounding line selection device is toppled or dropped, the rubber bulge 4 is firstly contacted with the ground, the rubber bulge 4 is extruded by the ground, the rubber bulge 4 overcomes the resistance of the spring 5 and enters the groove 3, then the rubber layer 2 is contacted with the ground, and the rubber layer 2 is extruded and deformed by the ground, so that when the shell 1 is toppled or dropped, the buffer and shock absorption can be carried out through the spring 5 and the rubber layer 2, the elements in the shell 1 are subjected to shock absorption and protection, and the condition that the internal elements are damaged due to toppling or dropping of the shell 1 is avoided; when undercurrent ground connection route selection device used, the heat radiation structure of its body can accelerate the inside circulation of air of casing 1 for when outside air got into casing 1, can carry out layer upon layer filtration through multilayer dust screen 9, thereby can strain the dust in the outside air, avoid appearing the dust and cover the radiating condition of influence on electronic component.

Claims

1. Undercurrent ground connection route selection device, including casing (1), its characterized in that: all be equipped with rubber layer (2) on a plurality of corners of casing (1), be equipped with recess (3) on rubber layer (2), recess (3) endotheca is equipped with rubber arch (4), be equipped with spring (5) in recess (3), the one end of spring (5) bonds on recess (3) inner wall, the other end of spring (5) bonds on rubber arch (4).

2. The small current ground line selection device according to claim 1, wherein: the shell (1) is provided with a heat dissipation opening (6), and a sealing layer (7) is bonded on the inner side of the heat dissipation opening (6).

3. The small current ground selection device of claim 2, wherein: a plurality of frames (8) are sleeved in the heat dissipation port (6), and dust screens (9) are installed on the frames (8).

4. The small current ground selection device of claim 3, wherein: the frame (8) is fixedly embedded with magnets (10), and the magnetic poles of the magnets (10) on the opposite surfaces of the frames (8) are opposite.

5. The small current ground selection device of claim 3, wherein: the frame (8) is provided with a support lug (11), the support lug (11) is provided with a positioning rod (12), and the support lug (11) and the positioning rod (12) are provided with a mounting bolt (13) through threads.

6. The small current ground line selection device according to claim 1, wherein: the shell (1) is provided with a positioning groove (14), and a support lug (11) and a positioning rod (12) are sleeved in the positioning groove (14).

7. The small current ground selection device of claim 6, wherein: a thread groove (15) is arranged in the positioning groove (14), and a mounting bolt (13) is connected in the thread groove (15) through threads.