CN210444204U - Waterproof dirt-proof converter - Google Patents
Waterproof dirt-proof converter Download PDFInfo
- Publication number
- CN210444204U CN210444204U CN201921977993.2U CN201921977993U CN210444204U CN 210444204 U CN210444204 U CN 210444204U CN 201921977993 U CN201921977993 U CN 201921977993U CN 210444204 U CN210444204 U CN 210444204U
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- frequency converter
- air inlet
- protective box
- placing groove
- inlet hopper
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- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
The utility model relates to the technical field of frequency converters, in particular to a waterproof and dustproof frequency converter, which comprises a frequency converter body, wherein a protective box is arranged at the top of the frequency converter body, a sealing plate is arranged at the top of the protective box, locking bolts are arranged on four sides of the sealing plate and between the protective box and are in threaded connection, a plurality of ventilation holes are uniformly formed in two sides of the sealing plate, an air inlet hopper is arranged in the protective box, the cross section of the air inlet hopper is conical, a first placing groove and a second placing groove are respectively arranged in the air inlet hopper along the extending direction, a shielding cover is arranged in the first placing groove, a sponge plate is arranged in the second placing groove, a ventilation opening is formed at the bottom of the air inlet hopper, and a connection opening is formed at the bottom of the protective box and the connection part of the frequency converter body, the utility model has simple structure, can effectively prevent dust and aqueous vapor in the air from entering the interior of the protective box.
Description
Technical Field
The utility model relates to a converter technical field especially relates to a waterproof dirt-proof converter.
Background
The frequency converter is the power control equipment who uses frequency conversion technique and microelectronic technique, control alternating current motor through changing motor working power supply frequency mode, the frequency converter mainly comprises rectification, filtering, the contravariant, the brake unit, drive unit and detecting element microprocessing unit etc. the frequency converter leans on the disconnection of inside IGBT to adjust output power's voltage and frequency, provide its required mains voltage according to the actual need of motor, and then reach energy-conservation, the mesh of speed governing, but the inside cooling fan of frequency converter when normal work absorbs outside air through the ventilation hole and dispels the heat the cooling, but contain moisture and dust in the outside air and can consequently get into inside the frequency converter, influence the normal work of frequency converter.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the shortcoming that has inside entering vapor of converter and dust among the prior art, and the waterproof dirt-proof converter that proposes.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a design waterproof dirt-proof converter, includes the converter body, protection box is installed at converter body top, the closing plate is installed at protection box top, four sides of closing plate with install the locking bolt between the protection box, the locking bolt with threaded connection between the closing plate, evenly open there are a plurality of ventilation holes in the closing plate both sides, protection box internally mounted has the air inlet fill, the air inlet fill cross-section is the toper, just the air inlet is fought inside and is opened first standing groove and second standing groove respectively along the extending direction, the cover has been placed to first standing groove inside, the sponge board has been placed to second standing groove inside, open the air inlet fill bottom has the vent, protection box bottom with the department of meeting of converter body is opened there is the mouth of ally oneself with.
Preferably, the communication port is communicated with an air inlet of a cooling fan inside the frequency converter body.
Preferably, the shielding cover is a filter screen cover.
Preferably, the sponge plate is provided with dense small holes along the extending direction.
Preferably, the vertical height of the air inlet hopper is lower than the height of the protection box, and the size of the ventilation opening is larger than that of the communication opening.
The utility model provides a pair of waterproof dirt-proof converter, beneficial effect lies in:
1. the protection box of utilization installation at the converter top can filter and adsorb the processing of aqueous vapor to the inside air that gets into the converter body, through the housing shield and the sponge board of installing on the air inlet fill, can carry out the pot to moisture in the air and dust in, prevents inside aqueous vapor and the dust access device.
Drawings
Fig. 1 is a schematic perspective view of a waterproof and dustproof frequency converter according to the present invention;
fig. 2 is a schematic view of the internal structure of a protection box of a waterproof and dustproof frequency converter provided by the present invention;
fig. 3 is the utility model provides a waterproof dirt-proof converter's protection box sectional structure sketch map.
In the figure: converter body 1, protective box 2, closing plate 3, ventilation hole 4, locking bolt 5, air inlet fill 6, first standing groove 7, second standing groove 8, vent 9, sponge board 10, shielding cover 11, UNICOM mouth 12.
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, a waterproof and dustproof frequency converter comprises a frequency converter body 1, a protective box 2 is installed on the top of the frequency converter body 1, a sealing plate 3 is installed on the top of the protective box 2, locking bolts 5 are installed between four sides of the sealing plate 3 and the protective box 2, the locking bolts 5 are in threaded connection with the sealing plate 3, a plurality of ventilation holes 4 are uniformly formed in two sides of the sealing plate 3, an air inlet hopper 6 is installed inside the protective box 2, the cross section of the air inlet hopper 6 is conical, a first placing groove 7 and a second placing groove 8 are respectively formed in the air inlet hopper 6 along the extending direction, a shielding cover 11 is placed inside the first placing groove 7, the shielding cover 11 is a filter screen cover which can filter impurities such as dust in air, a sponge plate 10 is placed inside the second placing groove 8, dense small holes are formed in the sponge plate 10 along the extending direction, so that air circulation can be facilitated and water vapor in air, realize the waterproof purpose of converter, open air inlet 6 bottoms has vent 9, and the department of meeting of protection box 2 bottoms and converter body 1 opens and has UNICOM's mouth 12, and UNICOM's mouth 12 is linked together with the inside radiator fan air intake of converter body 1, and the convenient air introduction that will accomplish filtration treatment is inside converter body 1, prevents inside dust and aqueous vapor entering converter.
Example 2
Referring to fig. 3, as another preferred embodiment of the present invention, the difference from embodiment 1 is that the vertical height of the air inlet funnel 6 is lower than the height of the protection box 2, and the size of the ventilation opening 9 is larger than the size of the communication opening 12, which facilitates the circulation of air inside the protection box 2 and ensures the normal circulation of air.
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 (5)
1. The waterproof and dustproof frequency converter comprises a frequency converter body (1) and is characterized in that a protective box (2) is mounted at the top of the frequency converter body (1), a sealing plate (3) is mounted at the top of the protective box (2), locking bolts (5) are mounted between four sides of the sealing plate (3) and the protective box (2), the locking bolts (5) are in threaded connection with the sealing plate (3), a plurality of ventilation holes (4) are uniformly formed in two sides of the sealing plate (3), an air inlet hopper (6) is mounted inside the protective box (2), the cross section of the air inlet hopper (6) is conical, a first placing groove (7) and a second placing groove (8) are respectively formed in the air inlet hopper (6) along the extending direction, a shielding cover (11) is placed inside the first placing groove (7), and a sponge plate (10) is placed inside the second placing groove (8), the air inlet hopper (6) is provided with a vent (9) at the bottom, and a communicating hole (12) is formed at the joint of the bottom of the protective box (2) and the frequency converter body (1).
2. The waterproof and dustproof frequency converter according to claim 1, wherein the communication port (12) is communicated with an air inlet of a cooling fan inside the frequency converter body (1).
3. A water-and dust-proof frequency converter according to claim 1, characterized in that the shielding cover (11) is a screen cover.
4. A water-and dust-proof frequency converter according to claim 1, characterized in that said sponge plate (10) is provided with dense holes along the extension direction.
5. The waterproof and dustproof frequency converter according to claim 1, wherein the vertical height of the air inlet hopper (6) is lower than the height of the protection box (2), and the size of the ventilation opening (9) is larger than that of the communication opening (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921977993.2U CN210444204U (en) | 2019-11-15 | 2019-11-15 | Waterproof dirt-proof converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921977993.2U CN210444204U (en) | 2019-11-15 | 2019-11-15 | Waterproof dirt-proof converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210444204U true CN210444204U (en) | 2020-05-01 |
Family
ID=70412100
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921977993.2U Active CN210444204U (en) | 2019-11-15 | 2019-11-15 | Waterproof dirt-proof converter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210444204U (en) |
-
2019
- 2019-11-15 CN CN201921977993.2U patent/CN210444204U/en active Active
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