CN217088507U - Frequency converter with protection function - Google Patents

Abstract

The utility model relates to a converter technical field discloses a converter with safeguard function, the power distribution box comprises a box body, the front end of box is located all around and is provided with the seal groove, be provided with the silica gel strip in the seal groove. The utility model discloses in, the coolant liquid in the heat transfer for the circulation intracavity that will produce, the circulating pump loops through first circulating pipe and second circulating pipe and carries out the circulation flow with the coolant liquid in the circulation intracavity, radiator fan rotates simultaneously, outside air passes through the inside that the draft slot got into the install bin, reach the radiating purpose of converter in the box with this, it closes to rotate the sealing door, make in the sealing groove that the sealing door got into the box, the inside silica gel strip of extrusion after the sealing groove was got into to the sealing door, make it take place deformation, seal the connecting gap department of box and sealing door through the silica gel strip that takes place deformation and the sealing strip on the sealing door, prevent that outside water and dust from getting into and damaging the converter device.

Description

Frequency converter with protection function

Technical Field

The utility model relates to a converter technical field especially relates to a converter with safeguard function.

Background

The frequency converter is a power control device which applies frequency conversion technology and microelectronic technology and controls an alternating current motor by changing the working power supply frequency mode of the motor, and mainly comprises a rectification unit (alternating current to direct current), a filtering unit, an inversion unit (direct current to alternating current), a braking unit, a driving unit, a detection unit microprocessing unit and the like.

The converter is an electrical unit's aggregate, work in step and can give out certain heat along with long-time function at the inside electrical unit of converter during operation, traditional converter only relies on the louvre of itself can't in time discharge inside heat, thereby lead to the inside high temperature of device and take place a series of circumstances such as short circuit, and traditional converter does not have some corresponding protection device, inside rainwater and dust got into the converter device easily in the external environment, cause the damage to the converter device, it is more inconvenient to use, so need improve.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a frequency converter with a protection function.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a frequency converter with a protection function comprises a box body, wherein a sealing groove is formed in the periphery of the front end of the box body, a silica gel strip is arranged in the sealing groove, a sealing door is rotatably connected to one side of the front end of the box body, a sealing strip is arranged on the periphery of the front end of the sealing door, a circulation cavity is formed in the middle rear portion of the inner side of the box body, a circulation pump is fixedly connected to the middle portion of the rear side of the box body, a liquid inlet of the circulation pump is communicated with one end of a first circulation pipe, the other end of the first circulation pipe penetrates through the box body and is communicated with the circulation cavity, a liquid outlet of the circulation pump is communicated with one end of a second circulation pipe, the other end of the second circulation pipe penetrates through the box body and is communicated with the circulation cavity, the rear side edge of the box body is fixedly connected to the periphery of the front end of an installation box, a plurality of ventilation grooves are arranged in the middle of one side of the installation box at equal intervals, and openings are formed in the upper end and the lower end of the middle of the other side of the installation box body, and heat dissipation fans are arranged in the openings.

As a further description of the above technical solution:

and a glass visual window is arranged at the middle upper part of the front end of the closed door.

As a further description of the above technical solution:

and one side of the middle part of the front end of the closed door is fixedly connected with a handle.

As a further description of the above technical solution:

and a safety warning label column is arranged at the middle lower part of the front end of the closed door.

As a further description of the above technical solution:

and the middle part of the inner side of the box body is provided with a frequency converter body.

As a further description of the above technical solution:

and the middle part of the inner side of the ventilation groove is provided with a dustproof screen plate.

As a further description of the above technical solution:

the first circulating pipe and the second circulating pipe are both in a snake shape.

The utility model discloses following beneficial effect has:

1. the utility model discloses in, the heat transfer that converter body work produced carries out the circulation for the coolant liquid in the circulation chamber, the circulating pump loops through first circulating pipe and second circulating pipe and carries out the circulation flow with the coolant liquid in the circulation chamber, radiator fan rotates simultaneously, the air with in the install bin is pumped and is discharged, outside air gets into the inside of install bin through the ventilation groove, the cooling liquid in with the circulating pipe is cooled down through the air flow velocity in the install bin with higher speed, reach the radiating purpose of the converter in the box with this, in time discharge the heat that converter work produced, guarantee the normal function of converter.

2. The utility model discloses in, rotate the sealing door and close for in the sealing groove that the sealing door got into the box, the sealing door got into and extrudes inside silica gel strip after the sealing groove, made it take place deformation, sealed the box with the joint gap department of sealing door through the silica gel strip that takes place deformation and the sealing strip on the sealing door, prevented that outside water and dust from getting into and damaging the converter device, prolong the life of converter.

Drawings

Fig. 1 is a structural view of a closed state of a frequency converter with a protection function according to the present invention;

fig. 2 is a structural view of an open state of the frequency converter with a protection function according to the present invention;

fig. 3 is a cross-sectional view of the internal structure of the box of the frequency converter with the protection function provided by the utility model.

Illustration of the drawings:

1. a box body; 2. a closing door; 3. a glass visual window; 4. a handle; 5. a safety warning label column; 6. a dustproof screen plate; 7. a ventilation slot; 8. installing a box; 9. a sealing strip; 10. a sealing groove; 11. a silica gel strip; 12. an opening; 13. a heat-dissipating fan; 14. a frequency converter body; 15. a circulation chamber; 16. a first circulation pipe; 17. a circulation pump; 18. a second circulation pipe.

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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-3, the present invention provides an embodiment: a frequency converter with a protection function comprises a box body 1, a sealing groove 10 is arranged at the periphery of the front end of the box body 1, a silica gel strip 11 is arranged in the sealing groove 10, a sealing door 2 is rotatably connected to one side of the front end of the box body 1, a sealing strip 9 is arranged at the periphery of the front end of the sealing door 2, the sealing door 2 is rotatably closed to enable the sealing door 2 to enter the sealing groove 10 of the box body 1, the sealing door 2 enters the sealing groove 10 and then extrudes the inner silica gel strip 11 to deform, a connecting gap between the box body 1 and the sealing door 2 is sealed through the deformed silica gel strip 11 and the sealing strip 9 on the sealing door 2 to prevent external water and dust from entering and damaging a frequency converter device, the service life of the frequency converter is prolonged, a circulating cavity 15 is arranged at the middle rear part of the inner side of the box body 1, a circulating pump 17 is fixedly connected to the middle part of the rear side of the box body 1, a liquid inlet of the circulating pump 17 is communicated with one end of a first circulating pipe 16, the other end of the first circulating pipe 16 penetrates through the box body 1 and is communicated with the circulating cavity 15, a liquid outlet of the circulating pump 17 is communicated with one end of the second circulating pipe 18, the other end of the second circulating pipe 18 penetrates through the box body 1 and is communicated with the circulating cavity 15, the rear side edge of the box body 1 is fixedly connected to the periphery of the front end of the installation box 8, a plurality of ventilation grooves 7 are equidistantly arranged in the middle of one side of the installation box 8, openings 12 are formed in the upper end and the lower end of the middle of the other side of the installation box 8, heat radiating fans 13 are arranged in the openings 12, heat generated by the working of the frequency converter body 14 is transferred to cooling liquid in the circulating cavity 15, the circulating pump 17 sequentially passes through the first circulating pipe 16 and the second circulating pipe 18 to circularly flow the cooling liquid in the circulating cavity 15, meanwhile, the heat radiating fans 13 rotate to suck and exhaust air in the installation box 8 due to pressure difference in the installation box 8, outside air gets into the inside of install bin 8 through ventilation groove 7, cools down the coolant liquid in the circulating pipe through the air flow velocity in the installation bin 8 with higher speed to this reaches the radiating purpose of converter in the box 1.

The middle upper part of the front end of the closed door 2 is provided with a glass visual window 3, the working state of a frequency converter body 14 in the box body 1 is conveniently checked through the glass visual window 3, one side of the middle part of the front end of the closed door 2 is fixedly connected with a handle 4, the closed door 2 is conveniently opened or closed through the handle 4, the middle lower part of the front end of the closed door 2 is provided with a safety warning label column 5, surrounding personnel are conveniently warned through the safety warning label column 5, electric shock accidents caused by accidental touch of non-working personnel are prevented, the middle part of the inner side of the box body 1 is provided with the frequency converter body 14, the voltage and the frequency in a circuit are conveniently adjusted through the frequency converter body 14, the middle part of the inner side of the ventilation groove 7 is provided with a dustproof screen plate 6, when external air enters the installation box 8 through the dustproof screen plate 6, dust in the air is filtered, and the external dust is prevented from entering the installation box 8, the first circulation pipe 16 and the second circulation pipe 18 are both in a snake shape, and the heat radiation area of the circulation pipes is increased through the snake-shaped first circulation pipe 16 and the snake-shaped second circulation pipe 18, so that the heat radiation efficiency of the whole device is improved.

The working principle is as follows: the heat generated by the operation of the frequency converter body 14 is transferred to the cooling liquid in the circulation cavity 15, the circulation pump 17 sequentially passes through the first circulation pipe 16 and the second circulation pipe 18 to circularly flow the cooling liquid in the circulation cavity 15, meanwhile, the heat dissipation fan 13 rotates to pump and discharge the air in the installation box 8, the external air enters the inside of the installation box 8 through the ventilation groove 7 due to the pressure difference in the installation box 8, the cooling liquid in the circulation pipe is cooled by accelerating the air flow speed in the installation box 8, so that the purpose of heat dissipation of the frequency converter in the box body 1 is achieved, the heat generated by the operation of the frequency converter is timely discharged to ensure the normal operation of the frequency converter, then, the sealing door 2 is rotated and closed, so that the sealing door 2 enters the sealing groove 10 of the box body 1, the sealing door 2 enters the sealing groove 10 and then extrudes the silica gel strip 11 inside, make it take place the deformation, seal box 1 and the joint gap department of closing door 2 through the silica gel strip 11 that takes place the deformation and the sealing strip 9 on the closing door 2, prevent that outside water and dust from getting into to damage the converter device, prolong the life of converter.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims (7)

1. The utility model provides a converter with safeguard function, includes box (1), its characterized in that: the sealing structure is characterized in that a sealing groove (10) is formed in the periphery of the front end of the box body (1), a silica gel strip (11) is arranged in the sealing groove (10), a sealing door (2) is rotatably connected to one side of the front end of the box body (1), sealing strips (9) are arranged on the periphery of the front end of the sealing door (2), a circulation cavity (15) is arranged at the middle rear portion of the inner side of the box body (1), a circulation pump (17) is fixedly connected to the middle portion of the rear side of the box body (1), a liquid inlet of the circulation pump (17) is communicated with one end of a first circulation pipe (16), the other end of the first circulation pipe (16) penetrates through the box body (1) and is communicated with the circulation cavity (15), a liquid outlet of the circulation pump (17) is communicated with one end of a second circulation pipe (18), the other end of the second circulation pipe (18) penetrates through the box body (1) and is communicated with the circulation cavity (15), and the rear side edge of the box body (1) is fixedly connected to the periphery of the front end of the installation box body (8), one side middle part equidistance of install bin (8) is provided with a plurality of ventilation groove (7), the lower extreme all is provided with opening (12) on the opposite side middle part of install bin (8), all be provided with radiator fan (13) in opening (12).

2. The frequency converter with the protection function according to claim 1, wherein: the middle upper part of the front end of the closed door (2) is provided with a glass visual window (3).

3. The frequency converter with the protection function according to claim 1, wherein: one side of the middle part of the front end of the closed door (2) is fixedly connected with a handle (4).

4. The frequency converter with the protection function according to claim 1, wherein: and a safety warning label column (5) is arranged at the middle lower part of the front end of the closing door (2).

5. The frequency converter with the protection function according to claim 1, wherein: and the middle part of the inner side of the box body (1) is provided with a frequency converter body (14).

6. The frequency converter with the protection function according to claim 1, wherein: the middle part of the inner side of the ventilation groove (7) is provided with a dustproof mesh plate (6).

7. The frequency converter with the protection function according to claim 1, wherein: the first circulating pipe (16) and the second circulating pipe (18) are both in a snake shape.

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