CN211267321U

CN211267321U - Motor soft starting device with good protection performance

Info

Publication number: CN211267321U
Application number: CN201921345471.0U
Authority: CN
Inventors: 张海军
Original assignee: Hangzhou Nange Electronic Technology Co ltd
Current assignee: Hangzhou Nange Electronic Technology Co ltd
Priority date: 2019-08-19
Filing date: 2019-08-19
Publication date: 2020-08-14
Anticipated expiration: 2029-08-19

Abstract

The utility model relates to the technical field of motor control, and discloses a motor soft starter device with good protection performance, which comprises a motor soft starter body, wherein supporting legs are fixedly arranged at four corners of the bottom of the motor soft starter body, and a heat dissipation mechanism is arranged on the motor soft starter body; the heat dissipation mechanism includes two symmetry fixed mounting heat dissipation chambeies on motor soft starter body lateral wall and the air-blower of through mounting bracket fixed mounting at motor soft starter body top, and the heat dissipation chamber is the heat dissipation material, and the intracavity that just dispels the heat is equipped with the coolant liquid, and the fixed intercommunication of output of air-blower has the air-supply line, and the air-supply line runs through the top of motor soft starter body and extends to its inner chamber, and two heat dissipation chambeies are close to fixed intercommunication between the lateral wall of bottom and have a plurality of evenly distributed's heat absorption copper pipe. The utility model discloses make motor soft start device possess efficient heat dissipation protect function, effectively avoid its inside temperature rise too high and damage the thyristor.

Description

Motor soft starting device with good protection performance

Technical Field

The utility model relates to a motor control technical field especially relates to a soft starting drive of motor that protective properties is good.

Background

The soft starter of the motor is a novel starting device which is designed and produced by adopting a power electronic technology, a microprocessing technology and a modern control theory and has the international advanced level at present. The product can effectively limit the starting current of the AC asynchronous motor when starting, can be widely applied to loads such as fans, water pumps, conveying and compressors, and is an ideal updating product of traditional voltage reduction equipment such as star/triangle conversion, self-coupling voltage reduction, magnetic control voltage reduction and the like.

In the prior art, the motor soft starter only simply dispels the heat through the fan, can not play high-efficient radiating effect, and the long-time work inside temperature is still very high, makes the thyristor damage because of the temperature rise is too high easily.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem that motor soft starter radiating efficiency is not high among the prior art, and the soft starting device of motor that a protective performance is good that provides.

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

a motor soft starter device with good protection performance comprises a motor soft starter body, wherein supporting legs are fixedly arranged at four corners of the bottom of the motor soft starter body, and a heat dissipation mechanism is arranged on the motor soft starter body;

the heat dissipation mechanism comprises two heat dissipation cavities which are symmetrically and fixedly arranged on the outer side wall of the motor soft starter body and a blower which is fixedly arranged on the top of the motor soft starter body through a mounting rack, the heat dissipation cavities are made of heat dissipation materials, and the cooling cavity is internally provided with cooling liquid, the output end of the blower is fixedly communicated with an air inlet pipe, the air inlet pipe penetrates through the top of the motor soft starter body and extends to the inner cavity of the motor soft starter body, a plurality of heat absorption copper pipes which are uniformly distributed are fixedly communicated between the side walls of the two cooling cavities close to the bottom, the heat absorption copper pipe penetrates through the motor soft starter body, the bottom of the motor soft starter body is symmetrically and fixedly communicated with two L-shaped pipes, the other ends of the L-shaped pipes are fixedly connected with a wind deflector with a hollow structure, the top of the air deflector is fixedly connected with the bottom of the heat dissipation cavity, and a plurality of uniformly distributed air guide holes are formed in one side, away from the L-shaped pipe, of the air deflector.

Preferably, the inside upper surface symmetry fixedly connected with casing of motor soft starter body, and be equipped with the drier in the casing, the casing is one side open-ended hollow structure, and opening position department hinge connection has the apron, the opening has been seted up to the bottom of casing, and fixed mounting has the ventilative net of matching in the opening.

Preferably, a matched filter screen is fixedly arranged in the air inlet pipe.

Preferably, a plurality of heat dissipation grooves which are uniformly distributed are formed in the side wall, far away from the motor soft starter body, of the heat dissipation cavity.

Preferably, the top of heat dissipation chamber is fixed the intercommunication has the inlet pipe, and the mouth of pipe position department threaded connection at inlet pipe top has the sealed lid of matching.

Preferably, the cover plate is connected with the shell through a buckle.

Compared with the prior art, the utility model provides a soft starting drive of motor that protective properties is good possesses following beneficial effect:

1. this motor soft starting device that protective properties is good through setting up motor soft starter body and heat dissipation mechanism, and heat dissipation mechanism conveniently carries out high-efficient heat dissipation to motor soft starter body, effectively avoids its inside temperature rise too high and damage the thyristor.

2. This motor soft start device that protective properties is good through setting up casing, drier and ventilative net, and this internal air of motor soft starter passes through ventilative net and the drier contact in the casing to this internal moisture of motor soft starter is conveniently dispeled, makes the inside dry environment that keeps of motor soft starter body, in order to avoid the emergence of electric leakage or short circuit accident.

The part that does not relate to in the device all is the same with prior art or can adopt prior art to realize, the utility model discloses make the soft starting drive of motor possess efficient heat dissipation protect function, effectively avoid its inside temperature rise too high and damage the thyristor.

Drawings

Fig. 1 is a schematic structural diagram of a motor soft start device with good protection performance provided by the present invention;

fig. 2 is an enlarged view of a portion a in fig. 1.

In the figure: the motor soft starter comprises a motor soft starter body 1, supporting legs 2, a heat dissipation cavity 3, an air blower 4, an air inlet pipe 5, a heat absorption copper pipe 6, an L-shaped pipe 7, an air deflector 8, an air guide hole 9, a shell 10, a drying agent 11, a cover plate 12, an air permeable net 13, a filter screen 14, a heat dissipation groove 15, a feeding pipe 16, a sealing cover 17 and a hasp 18.

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.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "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 simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Referring to fig. 1-2, a motor soft starter device with good protection performance comprises a motor soft starter body 1, wherein supporting legs 2 are fixedly arranged at four corners of the bottom of the motor soft starter body 1, and a heat dissipation mechanism is arranged on the motor soft starter body 1;

the heat dissipation mechanism comprises two heat dissipation cavities 3 symmetrically and fixedly arranged on the outer side wall of a motor soft starter body 1 and an air blower 4 fixedly arranged at the top of the motor soft starter body 1 through a mounting rack, the heat dissipation cavities 3 are made of heat dissipation materials, cooling liquid is arranged in the heat dissipation cavities 3, the output end of the air blower 4 is fixedly communicated with an air inlet pipe 5, the air inlet pipe 5 penetrates through the top of the motor soft starter body 1 and extends to the inner cavity of the motor soft starter body, a plurality of uniformly distributed heat absorption copper pipes 6 are fixedly communicated between the side walls of the two heat dissipation cavities 3 close to the bottom, the heat absorption copper pipes 6 penetrate through the motor soft starter body 1, the bottom of the motor soft starter body 1 is symmetrically and fixedly communicated with two L-shaped pipes 7, the other ends of the L-shaped pipes 7 are fixedly connected with a wind guide plate 8 with a hollow structure, the top of the wind guide plate 8 is fixedly connected with the bottom of the, starting an air blower 4, blowing external air into the interior of the motor soft starter body 1 through an air inlet pipe 5 to drive the internal air to flow downwards, meanwhile, enabling the cooling liquid in the heat dissipation cavity 3 to flow into a plurality of heat absorption copper pipes 6, enabling the downward flowing hot air to be in contact with the heat absorption copper pipes 6, enabling the cooling liquid to absorb heat through heat conduction, thereby effectively performing heat dissipation and cooling on the interior of the motor soft starter body 1, enabling the hot air in the motor soft starter body 1 to flow into an air guide plate 8 through an L-shaped pipe 7, blowing out through a plurality of air guide holes 9, performing heat dissipation through cooperation with the cooling liquid during blowing and heat dissipation, enabling the motor soft starter body 1 to have a high-efficiency heat dissipation protection function, enabling the heat absorbed cooling liquid to be dissipated into the air through the heat dissipation cavity 3, enabling the air blown out from the air guide holes 9 to be located at the bottom of the heat dissipation cavity 3, enabling the flow rate and, effectively improve the radiating efficiency in heat dissipation chamber 3 to make motor soft starter body 1 possess good heat dissipation function.

The inside upper surface symmetry fixedly connected with casing 10 of motor soft starter body 1, and be equipped with drier 11 in the casing 10, casing 10 is one side open-ended hollow structure, and open position department hinge connection has apron 12, the opening has been seted up to casing 10's bottom, and fixed mounting has the ventilative net 13 of matching in the opening, the air in the motor soft starter body 1 is through ventilative net 13 and the interior 11 contacts of drier of casing 10, thereby conveniently dispel the moisture in the motor soft starter body 1, make the inside dry environment that keeps of motor soft starter body 1, in order to avoid the emergence of electric leakage or short circuit accident.

The matched filter screen 14 is fixedly installed in the air inlet pipe 5, so that dust in the outside air is prevented from entering the interior of the motor soft starter body 1.

The side wall of the heat dissipation cavity 3, which is far away from the motor soft starter body 1, is provided with a plurality of heat dissipation grooves 15 which are uniformly distributed, so that the heat dissipation area is increased, and the heat dissipation efficiency is improved.

The top of the heat dissipation cavity 3 is fixedly communicated with a feed pipe 16, and a pipe opening position at the top of the feed pipe 16 is in threaded connection with a matched sealing cover 17, so that the sealing cover 17 is convenient to open, and the feed pipe 16 is used for supplementing cooling liquid into the heat dissipation cavity 3.

The cover plate 12 is connected with the shell 10 through the hasp 18, so that the opening and closing of the cover plate 12 are conveniently controlled, and the drying agent 11 in the shell 10 is conveniently replaced.

In the utility model, the blower 4 is started, the outside air is blown into the interior of the motor soft starter body 1 through the air inlet pipe 5 to drive the inside air to flow downwards, meanwhile, the cooling liquid in the heat dissipation cavity 3 flows into the heat absorption copper pipes 6, the downward flowing hot air is contacted with the heat absorption copper pipes 6, and the cooling liquid absorbs heat through heat conduction, thereby effectively performing heat dissipation and cooling on the interior of the motor soft starter body 1, the hot air in the motor soft starter body 1 flows into the air deflector 8 through the L-shaped pipe 7 and is blown out through the air guide holes 9, and the cooling liquid is matched for heat dissipation while blowing and dissipating heat, thereby enabling the motor soft starter body 1 to have a high-efficiency heat dissipation protection function, the heat is dissipated into the air through the heat dissipation cavity 3 by the cooling liquid after absorbing heat, the air blown out from the air guide holes 9 is positioned at the bottom of the heat dissipation cavity 3, the flow speed is high and the pressure is low, thereby enabling the, the heat dissipation efficiency of the heat dissipation cavity 3 is effectively improved, so that the motor soft starter body 1 has a good heat dissipation function; the air in the motor soft starter body 1 contacts with the drying agent 11 in the shell 10 through the ventilation net 13, so that moisture in the motor soft starter body 1 is conveniently removed, the inside of the motor soft starter body 1 is kept in a dry environment, and electric leakage or short circuit accidents are avoided.

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. A motor soft start device with good protection performance comprises a motor soft starter body (1), and is characterized in that supporting legs (2) are fixedly arranged at four corners of the bottom of the motor soft starter body (1), and a heat dissipation mechanism is arranged on the motor soft starter body (1);

the heat dissipation mechanism comprises two heat dissipation cavities (3) which are symmetrically and fixedly installed on the outer side wall of a motor soft starter body (1) and an air blower (4) which is fixedly installed at the top of the motor soft starter body (1) through an installation frame, the heat dissipation cavities (3) are made of heat dissipation materials, cooling liquid is arranged in the heat dissipation cavities (3), the output end of the air blower (4) is fixedly communicated with an air inlet pipe (5), the air inlet pipe (5) penetrates through the top of the motor soft starter body (1) and extends to the inner cavity of the motor soft starter body, a plurality of heat absorption copper pipes (6) which are uniformly distributed are fixedly communicated between the side walls of the two heat dissipation cavities (3) close to the bottom, the heat absorption copper pipes (6) penetrate through the motor soft starter body (1), two L-shaped pipes (7) are symmetrically and fixedly communicated with the bottom of the motor soft starter body (1), and a starter plate (8) with a, the top of the air deflector (8) is fixedly connected with the bottom of the heat dissipation cavity (3), and a plurality of uniformly distributed air guide holes (9) are formed in one side, far away from the L-shaped pipe (7), of the air deflector (8).

2. The soft motor starting device with good protection performance according to claim 1, wherein a shell (10) is symmetrically and fixedly connected to the upper surface of the interior of the soft motor starting device body (1), a drying agent (11) is arranged in the shell (10), the shell (10) is of a hollow structure with an opening on one side, a cover plate (12) is hinged to the opening position, a notch is formed in the bottom of the shell (10), and a matched ventilation net (13) is fixedly installed in the notch.

3. The motor soft start device with good protection performance as claimed in claim 1, characterized in that a matched filter screen (14) is fixedly installed in the air inlet pipe (5).

4. The soft motor starting device with good protection performance as claimed in claim 1, wherein a plurality of uniformly distributed heat dissipation grooves (15) are formed on the side wall of the heat dissipation cavity (3) far away from the soft motor starting device body (1).

5. The motor soft start device with good protection performance as claimed in claim 1, characterized in that the top of the heat dissipation chamber (3) is fixedly communicated with a feed pipe (16), and a matching sealing cover (17) is screwed at the position of the pipe opening at the top of the feed pipe (16).

6. The motor soft start device with good protection performance as claimed in claim 2, characterized in that the cover plate (12) is connected with the housing (10) through a hasp (18).