CN215342306U

CN215342306U - Protective device for low-voltage capacitor

Info

Publication number: CN215342306U
Application number: CN202121492465.5U
Authority: CN
Inventors: 俞海军
Original assignee: Shaoxing Shangyu Homejia Electronic Technology Co ltd
Current assignee: Shaoxing Shangyu Homejia Electronic Technology Co ltd
Priority date: 2021-07-02
Filing date: 2021-07-02
Publication date: 2021-12-28
Anticipated expiration: 2031-07-02

Abstract

The utility model discloses a protective device for a low-voltage capacitor, which comprises the low-voltage capacitor, wherein a protective device main body is movably arranged on the upper surface of the low-voltage capacitor, a cap is movably embedded and arranged on the upper surface of the protective device main body, a sealing plate is fixedly arranged on the lower surface of the cap, a filter screen is movably embedded and arranged in the cap, connecting blocks are fixedly arranged at the symmetrical positions of the lower surface of the cap and the sealing plate, a conical baffle plate is fixedly arranged on the surface of the protective device main body, and a wiring groove is formed in the position, close to the upper end, of the surface of the protective device main body. The protective device for the low-voltage capacitor, disclosed by the utility model, can be mounted by firstly clamping the protective device above the capacitor and then connecting lines, so that dust outside the protective device is prevented from entering the protective device from a space below a connecting line, and air flow in the capacitor box can be guided to enter the protective device to quickly discharge heat at the connecting part.

Description

Protective device for low-voltage capacitor

Technical Field

The utility model relates to the field of protective devices, in particular to a protective device for a low-voltage capacitor.

Background

The low-voltage capacitor is generally a power capacitor with rated voltage of 400V-6 kV, and is used for improving power factors so as to reduce electricity consumption cost, lightening the load of equipment, prolonging the service life of the equipment and reducing the line loss from a power supply end to a power consumption end; the protection device for the existing low-voltage capacitor has certain defects when in use, when in installation, the protection device is directly clamped at the position of a capacitor and a connecting wire and can only isolate dust above the connecting wire, dust outside the protection device can enter the protection device from the space below the connecting wire, and air flow inside the capacitor box can not be guided to enter the protection device, so that heat at the connecting wire is rapidly discharged.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims to provide a protective device for a low-voltage capacitor, which can effectively solve the problems in the background technology.

In order to achieve the purpose, the utility model adopts the technical scheme that:

the utility model provides a protector for low-voltage capacitor, includes the low-voltage capacitor, low-voltage capacitor upper surface movable mounting has the protector main part, the block is installed in the embedding of protector main part upper surface activity, fixed surface installs the closing plate under the block, the filter screen is installed in the inside movable embedding of block, the block lower surface with the fixed mounting of closing plate symmetry department has the connecting block, protector main part fixed surface installs conical baffle.

Preferably, a wiring groove is formed in the surface, close to the upper end, of the protection device main body, sealing strips are fixedly mounted on the inner side surface of the wiring groove and the lower surface of the sealing plate, and the sealing plate is movably connected with the protection device main body through the wiring groove.

Preferably, a movable groove is formed in the surface, close to the upper end, of the protection device body, movable holes are formed in the surfaces of the two sides of the movable groove, the connecting block is movably connected with the protection device body through the movable groove, rotating shafts are fixedly mounted on the surfaces of the two sides of the connecting block, the connecting block is movably connected with the movable holes through the rotating shafts, a sealing gasket is fixedly mounted on the lower surface inside the movable groove, and the sealing gasket is movably connected with the connecting block.

Preferably, a clamping groove is formed in the surface of the cap, a clamping plate is fixedly mounted on the surface of the filter screen, and the clamping plate is movably connected with the cap through the clamping groove.

Preferably, the block surface is close lower extreme department fixed mounting and has No. two fixed plates, the protector main part surface is close upper end department fixed mounting and has a fixed plate No. one, a fixed plate with No. two spacing holes, two have all been seted up to the fixed plate surface spacing hole passes through spacing inserted bar swing joint.

Preferably, the upper surface of the cap is provided with an air inlet, the surface of the protection device main body is positioned below the conical baffle and is provided with an air outlet, and one end of the air outlet positioned on the outer surface of the protection device main body inclines downwards.

Compared with the prior art, the utility model has the following beneficial effects:

in the utility model, a protection device main body is clamped on the upper surface of a low-voltage capacitor, a limiting insertion rod is taken out from the interior of a limiting hole, a first fixing plate and a second fixing plate are separated, a cover cap is turned backwards under the action of a rotating shaft and a movable hole, then an electric wire is connected with the low-voltage capacitor and is clamped in a wiring groove, then the cover cap is covered on the upper surface of the protection device main body again, a sealing plate and the wiring groove are used for clamping the electric wire, the limiting insertion rod is inserted into the limiting hole, the first fixing plate is connected with the second fixing plate, the firmness between the cover cap and the protection device main body is improved, the sealing performance of the connection part is improved by a sealing strip, dust is prevented from entering the interior of the protection device main body, when the protection device is used, air flow in a capacitance box enters the interior of the protection device main body through an air inlet, is filtered by a filter screen, dust in the air is filtered, and then is discharged through an exhaust hole, thereby discharge the heat of junction, improve the radiating effect of protector main part, the air current dispersion that conical baffle blown down the top is around, avoids the air current to carry the dust and gets into inside the protector main part from the exhaust hole, and then increases the dustproof effect of protector main part.

Drawings

FIG. 1 is a schematic view of the overall structure of a protection device for a low-voltage capacitor according to the present invention;

FIG. 2 is a disassembled view of the main body structure of the protection device for the low-voltage capacitor according to the present invention;

FIG. 3 is a disassembled view of a cap and a filter screen structure of the protection device for a low-voltage capacitor according to the present invention;

fig. 4 is an enlarged view at a in fig. 1 of a protector for a low-voltage capacitor according to the present invention.

In the figure: 1. a low-voltage capacitor; 2. a guard body; 201. a conical baffle; 202. an exhaust hole; 203. a wiring slot; 204. a movable groove; 205. a movable hole; 206. a first fixing plate; 3. capping; 301. an air inlet; 302. a card slot; 303. a sealing plate; 304. a sealing strip; 305. a second fixing plate; 306. a limiting hole; 4. filtering with a screen; 401. clamping a plate; 5. connecting blocks; 501. a rotating shaft; 502. sealing gaskets; 6. and a limiting inserted rod.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the utility model easy to understand, the utility model is further described with the specific embodiments.

As shown in fig. 1-4, a protection device for a low-voltage capacitor comprises a low-voltage capacitor 1, a protection device body 2 is movably mounted on the upper surface of the low-voltage capacitor 1, a cap 3 is movably mounted on the upper surface of the protection device body 2 in an embedded manner, a sealing plate 303 is fixedly mounted on the lower surface of the cap 3, a filter screen 4 is movably mounted in the cap 3 in an embedded manner, a connecting block 5 is fixedly mounted on the lower surface of the cap 3 at a position symmetrical to the sealing plate 303, and a conical baffle 201 is fixedly mounted on the surface of the protection device body 2;

the surface of the protection device main body 2 close to the upper end is provided with a wiring groove 203, the inner side surface of the wiring groove 203 and the lower surface of the sealing plate 303 are both fixedly provided with sealing strips 304, the sealing plate 303 is movably connected with the protection device main body 2 through the wiring groove 203, and the sealing strips 304 increase the sealing performance of the connection part and prevent dust from entering the protection device main body 2; a movable groove 204 is formed in the surface of the protection device main body 2 close to the upper end, movable holes 205 are formed in the surfaces of two sides of the movable groove 204, the connecting block 5 is movably connected with the protection device main body 2 through the movable groove 204, rotating shafts 501 are fixedly arranged on the surfaces of two sides of the connecting block 5, the connecting block 5 is movably connected with the movable holes 205 through the rotating shafts 501, a sealing gasket 502 is fixedly arranged on the lower surface inside the movable groove 204, and the sealing gasket 502 is movably connected with the connecting block 5; a clamping groove 302 is formed in the surface of the cap 3, a clamping plate 401 is fixedly mounted on the surface of the filter screen 4, and the clamping plate 401 is movably connected with the cap 3 through the clamping groove 302; a second fixing plate 305 is fixedly arranged on the surface of the cap 3 close to the lower end, a first fixing plate 206 is fixedly arranged on the surface of the protection device main body 2 close to the upper end, limiting holes 306 are formed in the surfaces of the first fixing plate 206 and the second fixing plate 305, the two limiting holes 306 are movably connected through a limiting inserted rod 6, and the firmness between the cap 3 and the protection device main body 2 is improved; inlet port 301 has been seted up to the 3 upper surfaces of block, and the exhaust hole 202 has been seted up to 2 surfaces of protector main part located conical baffle 201 below, and exhaust hole 202 is located 2 surface one end slopes downwards of protector main part, and conical baffle 201 is to the air current dispersion that the top was blown down around, avoids the air current to carry the dust and gets into inside the protector main part 2 from exhaust hole 202, and then increases the dustproof effect of protector main part 2.

It should be noted that, the utility model is a protection device for low-voltage capacitor, when it is installed, the protection device main body 2 is clamped on the upper surface of the low-voltage capacitor 1, the limit inserting rod 6 is taken out from the limit hole 306, the first fixing plate 206 and the second fixing plate 305 are separated, the cap 3 is turned backwards under the action of the rotating shaft 501 and the movable hole 205, then the electric wire is connected with the low-voltage capacitor 1, the electric wire is clamped in the wiring groove 203, then the cap 3 is covered on the upper surface of the protection device main body 2 again, the sealing plate 303 and the wiring groove 203 clamp the electric wire, the limit inserting rod 6 is inserted into the limit hole 306, the first fixing plate 206 and the second fixing plate 305 are connected, the firmness between the cap 3 and the protection device main body 2 is improved, the sealing performance of the connection position is increased by the sealing strip 304, dust is prevented from entering the protection device main body 2, when it is used, the air flow in the capacitance box enters the protection device main body 2 through the air inlet 301, through filter screen 4 filtration, filter the dust in the air, then discharge through exhaust hole 202 to discharge the heat of junction, improve protector main part 2's radiating effect, conical baffle 201 is with the air current dispersion that the top blown down to all around, avoid the air current to carry the dust from exhaust hole 202 entering protector main part 2 inside, and then increase protector main part 2's dustproof effect.

The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a protector for low-voltage capacitor which characterized in that: including low-voltage capacitor (1), surface movable mounting has protector main part (2) on low-voltage capacitor (1), surface movable embedding installs block (3) in protector main part (2), block (3) lower fixed surface installs closing plate (303), filter screen (4) are installed in the inside movable embedding of block (3), block (3) lower surface with closing plate (303) symmetry department fixed mounting has connecting block (5), protector main part (2) fixed surface installs conical baffle (201).

2. A protective device for low-voltage capacitors as claimed in claim 1, characterized in that: wiring groove (203) have been seted up to protector main part (2) surface near upper end department, wiring groove (203) inboard surface with the equal fixed mounting of closing plate (303) lower surface has sealing strip (304), closing plate (303) pass through wiring groove (203) with protector main part (2) swing joint.

3. A protective device for low-voltage capacitors as claimed in claim 1, characterized in that: protection device main part (2) surface is close the upper end department and has seted up activity groove (204), activity hole (205) have all been seted up on activity groove (204) both sides surface, connecting block (5) are passed through activity groove (204) with protection device main part (2) swing joint, connecting block (5) both sides fixed surface installs pivot (501), connecting block (5) are passed through pivot (501) with activity hole (205) swing joint, the inside lower fixed surface of activity groove (204) installs seal gasket (502), seal gasket (502) with connecting block (5) swing joint.

4. A protective device for low-voltage capacitors as claimed in claim 1, characterized in that: the surface of the cover cap (3) is provided with a clamping groove (302), the surface of the filter screen (4) is fixedly provided with a clamping plate (401), and the clamping plate (401) is movably connected with the cover cap (3) through the clamping groove (302).

5. A protective device for low-voltage capacitors as claimed in claim 1, characterized in that: the utility model discloses a safety device, including protector, fixed plate (206), No. two fixed plates (305), protector main part (2) surface is close lower extreme department fixed mounting and has No. two fixed plates (305), No. one fixed plate (206) with No. two fixed plates (305) surface has all been seted up spacing hole (306), two spacing hole (306) are through spacing inserted bar (6) swing joint.

6. A protective device for low-voltage capacitors as claimed in claim 1, characterized in that: an air inlet hole (301) is formed in the upper surface of the cover cap (3), an exhaust hole (202) is formed in the position, located on the surface of the protection device main body (2), below the conical baffle plate (201), of the exhaust hole (202), and one end, located on the outer surface of the protection device main body (2), of the exhaust hole inclines downwards.