CN220190570U

CN220190570U - Explosion-proof motor air cooler

Info

Publication number: CN220190570U
Application number: CN202320443287.XU
Authority: CN
Inventors: 陈灵峰
Original assignee: Wuxi Lingde Electric Machinery Co ltd
Current assignee: Wuxi Lingde Electric Machinery Co ltd
Priority date: 2023-03-09
Filing date: 2023-03-09
Publication date: 2023-12-15
Anticipated expiration: 2033-03-09

Abstract

The utility model provides an explosion-proof motor air cooler, which comprises a cylindrical air cover, wherein the top of the air cover is open, grid-shaped through hole structures are uniformly distributed at the bottom of the air cover, and a cavity for accommodating is formed inside the air cover; the motor is arranged on one side, far away from the opening, of the cavity; the blades are arranged on the circumference of the motor, and a plane formed by the rotation of the blades is parallel to the top or bottom plane of the fan housing; the outer periphery of the bracket is welded on the inner wall of the fan housing, a motor center rotating shaft vertically penetrating through the motor is arranged in the center of the bracket, and the other end of the motor center rotating shaft penetrates through the bottom surface of the fan housing; one end of the electric wire is inserted into the top of the bracket and is electrically connected with the motor below, and the other end extends out of the fan housing; the explosion-proof junction box is internally provided with a wiring terminal which is electrically connected with a port part extending into the electric wire. According to the utility model, the electric wires for electric connection extend into the explosion-proof junction box, so that the purpose of effectively adapting to a factory building with explosion-proof requirements is achieved, and the fan housing can effectively improve heat dissipation performance, has good sealing performance and achieves the effects of water resistance and dust resistance.

Description

Explosion-proof motor air cooler

Technical Field

The utility model relates to the field of motors, in particular to the technical field of explosion-proof motors, and specifically relates to an air cooler of an explosion-proof motor.

Background

The cooling and heat dissipation fan is often used in a factory building for mechanical production due to the advantages of simple installation, low noise, small vibration, reliable operation and the like.

Because the cooling fan is in an environment in which impurities are unavoidable, and particularly in an area with flammable and explosive products, the cooling fan is required to have explosion-proof requirements. Can observe current air-cooler, when using, shipment manufacturer can be in its surface usually attached with yellow warning sign, requires "the fan should be stored in dry environment, avoids the motor to wet, and the fan should be rain-proof measure when depositing in the open air, should prevent the fan to collide with in storing and handling to the needs of avoiding the fan to receive the damage" are known, therefore ordinary air-cooler's commonality is poor, requires high to the site environment, also requires operating personnel's timely attention, and the life-span of air-cooler can't be guaranteed.

The prior art discloses an axial-flow exhaust fan for enhancing the cooling effect of a motor, and patent number CN201110326359.4 discloses an axial-flow exhaust fan for enhancing the cooling effect of a motor, which solves the problems that the existing totally-enclosed motor cooling system with the axial-flow exhaust fan is not strong in heat dissipation capacity and has a large amount of useless cooling air quantity. The axial flow exhaust fan for enhancing the cooling effect of the motor comprises an impeller and a motor which are arranged in a shell, wherein the impeller is connected with the motor, and the axial flow exhaust fan further comprises a wind shield which is arranged on the air outlet side and is coaxial with the impeller and has a diameter smaller than that of the impeller. The axial flow exhauster for enhancing the cooling effect of the motor can greatly improve the cooling and heat-dissipating capacity of the motor, effectively take away the heat on the surface of the motor, reduce the temperature rise of the motor, improve the thermal reliability of the motor, reduce the volume of the motor, lighten the weight of the motor, save the cost and improve the cost performance of the motor due to the design after the heat-dissipating capacity is improved. However, it reduces the heat generation of the motor while ensuring the power enhancement, and it is not involved in explosion protection because of its earlier application time.

Disclosure of Invention

In view of the above-mentioned drawbacks of the prior art, an object of the present utility model is to provide an explosion-proof electric machine air cooler for solving the difficulties of the prior art.

To achieve the above and other related objects, the present utility model provides an explosion-proof electric machine air cooler, comprising:

the fan cover 1 is of a cylindrical structure, the top of the fan cover 1 is open, grid-shaped through hole structures are uniformly distributed at the bottom of the fan cover, and a cavity for accommodating is formed in the fan cover;

a motor 11, the motor 11 being arranged on the side of the cavity remote from the opening;

the blades 9 are arranged on the circumference of the motor 11, and the plane formed by the rotation of the blades 9 is parallel to the top or bottom plane of the fan housing 1;

the support 10, the outer peripheral ring of the said support 10 is welded on inner wall of the fan housing 1, there is motor center spindle vertically penetrating in motor 11 in the center, another end of the said motor center spindle penetrates the bottom surface of the fan housing 1;

the electric wire 14, one end of the electric wire 14 is inserted into the top of the bracket 10 and is electrically connected with the motor 11 below, and the other end extends out of the fan housing 1;

the explosion-proof junction box 6, explosion-proof junction box 6 passes through ring flange 13, no. two bolts 4 and No. two packing rings 5 and installs on the lateral wall of fan housing 1, preset binding post in the explosion-proof junction box 6 and stretch into the port part electricity of electric wire 14 and be connected.

According to a preferred embodiment, the top and bottom ends of the motor central shaft are mounted with the corresponding bracket 10 and the fan housing 1 parts using bolts and washers, respectively

According to a preferred embodiment, the explosion-proof junction box 6 is cast from an aluminum alloy.

According to a preferred embodiment, the motor 11 is an external rotor motor.

According to a preferred scheme, a plurality of paddles 9 are arranged, and the paddles 9 are arranged in a ring-shaped array with a motor center rotating shaft as a center shaft.

According to a preferred embodiment, the blades 9 are provided with 8 groups.

According to a preferred embodiment, each of said blades 9 is arranged inclined, arranged towards the direction of rotation.

According to a preferred embodiment, the inclination directions of all the blades 9 are uniform.

According to a preferred embodiment, the support 10 adopts a tripod structure, the central part is integrally provided with and sleeved with the end part of the central rotating shaft of the motor, and the outer end parts are respectively arranged on the side walls of the fan housing 1.

According to a preferred scheme, a bolt mounting hole is formed in the outer side end portion of the support 10, and when the fan cover is mounted, a bolt is screwed into the first bolt 2 and the first gasket 3 from the outer side wall of the fan cover 1 to be fastened.

According to a preferred embodiment, a silicone sealing ring is arranged at the joint of the fan housing 1 and the bracket 10.

According to a preferred embodiment, the outer surface of the explosion-proof junction box 6 is sprayed with an electrostatic layer.

The high-voltage electrostatic spraying plastic on the surface effectively improves the heat dissipation performance, has good sealing performance, and is waterproof and dustproof

According to a preferred embodiment, the fan housing 1 is provided with mounting holes 15 on the side wall of the bracket 10 remote from the motor 11, corresponding to the bottom mounting bracket or the suspension mounting.

According to the preferred scheme, direction plates 1 and nameplates 7 are respectively arranged on two sides of the outer surface of the fan housing 1, which is close to the explosion-proof junction box 6.

The utility model adopts the mounting structure of the fan housing, the motor, the blade, the bracket, the electric wire and the explosion-proof junction box, is convenient to mount and overhaul, stretches the electric wire for electric connection into the explosion-proof junction box, achieves the purpose of effectively adapting to a factory building with explosion-proof requirements, and can effectively improve the heat dissipation performance, has good sealing performance and achieves the waterproof and dustproof effects.

Preferred embodiments for carrying out the present utility model will be described in more detail below with reference to the attached drawings so that the features and advantages of the present utility model can be easily understood.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 shows a top view of the present utility model;

FIG. 3 is a schematic view showing the structure of a bracket according to the present utility model;

description of the reference numerals

1. A direction board; 2. a first bolt; 3. a washer I; 4. a second bolt; 5. a second gasket; 6. an explosion-proof junction box;

7. a nameplate; 8. a fan housing; 9. a paddle; 10. a bracket; 11. a motor; 12. a motor center rotating shaft; 13. a flange plate;

14. an electric wire; 15. and (5) mounting holes.

Detailed Description

In order to make the objects, technical solutions and advantages of the technical solutions of the present utility model more clear, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings of specific embodiments of the present utility model. Like reference numerals in the drawings denote like parts. It should be noted that the described embodiments are some, but not all embodiments of the present utility model. All other embodiments, which can be made by a person skilled in the art without creative efforts, based on the described embodiments of the present utility model fall within the protection scope of the present utility model.

Possible embodiments within the scope of the utility model may have fewer components, have other components not shown in the drawings, different components, differently arranged components or differently connected components, etc. than the examples shown in the drawings. Furthermore, two or more of the elements in the figures may be implemented in a single element or a single element shown in the figures may be implemented as multiple separate elements.

Unless defined otherwise, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this utility model belongs. The terms "first," "second," and the like in the description and in the claims, are not used for any order, quantity, or importance, but are used for distinguishing between different elements. Likewise, the terms "a" or "an" and the like do not necessarily denote a limitation of quantity. The word "comprising" or "comprises", and the like, means that elements or items preceding the word are included in the element or item listed after the word and equivalents thereof, but does not exclude other elements or items. The terms "connected" or "connected," and the like, are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", etc. are used merely to indicate relative positional relationships, which may also be changed when the absolute position of the object to be described is changed.

The utility model provides an explosion-proof motor air cooler which is used in a cooling fan process, and the utility model does not limit the cooling occasion, but the structure of the explosion-proof motor air cooler is particularly suitable for tunnels and electric welding workshops.

In general, the explosion-proof motor air cooler mainly comprises a fan housing 1, a motor 11, blades 9, a bracket 10, an electric wire 14 and an explosion-proof junction box 6. Among them, reference can be made to fig. 1, which shows the arrangement of the hood 1, motor 11, blade 9, bracket 10, wire 14 and explosion-proof junction box 6.

In order to achieve the purpose of explosion prevention in a cooling fan, the problems that in the background technology, the universality of a common cooling fan is poor, the requirement on site environment is high, operators are required to pay attention to in time, and the service life of the cooling fan cannot be guaranteed are solved.

As described above, a structure of reasonably arranging the motor 11 and the blades 9 is formed in the fan housing 1, wherein the bracket 10 and the motor 11 are arranged at one time along the direction of the opening end of the fan housing 1 towards the bottom grid-shaped through hole structure, specifically, the motor 11 is arranged on one side of the cavity far away from the opening, the outer circumference of the bracket 10 is welded on the inner wall of the fan housing 1, a motor center rotating shaft vertically penetrating through the motor 11 is arranged at the center, and the other end of the motor center rotating shaft penetrates through the bottom surface of the fan housing 1; in use, the top and bottom ends of the motor center shaft are respectively mounted with the corresponding bracket 10 and fan housing 1 parts by using bolts and washers, one end of a wire 14 for electric connection is inserted into the top of the bracket 10 to be electrically connected with the motor 11 below, the part which is moved in is bound on the bracket 10 by a fixing belt, and the other end extends out of the fan housing 1 to be connected with the explosion-proof junction box 6.

In order to obtain stable installation of the explosion-proof junction box 6, on the one hand, an installation terminal extends out of the side wall of the fan housing 1, and on the other hand, the connection end of the explosion-proof junction box 6 is installed on the installation terminal through a flange plate 13, a second bolt 4 and a second washer 5; further, the explosion-proof junction box 6 is formed by casting aluminum alloy, an electrostatic layer is sprayed on the outer surface of the explosion-proof junction box 6 and the mounting terminal, and the heat dissipation performance is effectively improved by surface high-voltage electrostatic spraying, so that the sealing performance is good, and the waterproof and dustproof effects are achieved.

The connection structure among the blade 9, the motor 11 and the bracket 10 is specifically described, wherein, because the blade 9 needs to rotate to realize driving, the motor 11 adopts an outer rotor motor, the blade 9 is arranged on the circumference of the motor 11, and the blade 9 rotates along with the rotation of the outer rotor motor to drive the flow direction of wind, thereby achieving the effect of cooling; since the open end of the fan housing 1 and the grid-shaped through holes at the bottom are coaxially arranged to achieve the uniformity of the wind flow direction, the plane formed by the blades 9 after rotation is parallel to the top or bottom plane of the fan housing 1.

In order to achieve effective cooling, the paddles 9 are provided with 8 groups, and a plurality of paddles 9 are arranged in a ring-shaped array by taking a central rotating shaft of a motor as a central shaft; in order to correspond to the annular side wall and the axial ventilation and air supply end face, each blade 9 is obliquely arranged, and the oblique directions of all the blades 9 are identical and are arranged toward the rotation direction.

On the basis, in order to avoid influencing the wind flow in the annular side wall, the bracket 10 adopts a tripod structure, enough space is reserved between adjacent struts, the central part of the bracket 10 is integrally provided with and sleeved with the end part of the central rotating shaft of the motor, the outer end parts are respectively arranged on the side wall of the fan housing 1, and as the outer end parts of the bracket 10 are provided with bolt mounting holes, bolts are screwed into the first bolt 2 and the first washer 3 mounting holes from the outer side wall of the fan housing 1 during mounting, and the purpose of effective fastening can be achieved; further, the junction of fan housing 1 and support 10 is provided with the silica gel sealing washer, further improves fixed mounting's effect, and in addition, can also avoid the high temperature and the not hard up condition that leads to take place.

As shown in fig. 1, the side wall of the fan housing 1, which is far away from the motor 11, is provided with a mounting hole 15 corresponding to the bottom mounting bracket or the suspension mounting; in addition, the direction plate 1 and the nameplate 7 are respectively arranged on the two sides of the outer surface of the fan housing 1, which is close to the explosion-proof junction box 6, for prompting.

The above embodiments are merely illustrative of the principles of the present utility model and its effectiveness, and are not intended to limit the utility model. Modifications and variations may be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the utility model. Accordingly, it is intended that all equivalent modifications and variations of the utility model be covered by the claims, which are within the ordinary skill of the art, be within the spirit and scope of the present disclosure.

Claims

1. An explosion-proof motor air cooler, characterized by comprising:

the air cover (1) is of a cylindrical structure, the top of the air cover is open, grid-shaped through hole structures are uniformly distributed at the bottom of the air cover, and a cavity for accommodating is formed inside the air cover;

a motor (11), the motor (11) being arranged on the side of the cavity remote from the opening;

the blades (9) are arranged on the circumference of the motor (11), and the plane formed by the rotation of the blades (9) is parallel to the top or bottom plane of the fan housing (1);

the outer periphery of the bracket (10) is welded on the inner wall of the fan housing (1), a motor center rotating shaft vertically penetrating through the motor (11) is arranged in the center of the bracket, and the other end of the motor center rotating shaft penetrates through the bottom surface of the fan housing (1);

the electric wire (14), one end of the electric wire (14) is inserted into the top of the bracket (10) and is electrically connected with the motor (11) below, and the other end of the electric wire extends out of the fan housing (1);

the explosion-proof junction box (6), explosion-proof junction box (6) are installed on the lateral wall of fan housing (1) through ring flange (13), no. two bolt (4) and No. two packing rings (5), preset binding post and the port part electricity that stretches into electric wire (14) in explosion-proof junction box (6).

2. An explosion-proof electric machine air cooler according to claim 1, characterized in that the electric machine (11) is an external rotor electric machine.

3. The explosion-proof motor air cooler according to claim 2, wherein a plurality of blades (9) are provided, and a plurality of blades (9) are arranged in an annular array with a motor center rotating shaft as a center shaft.

4. An explosion-proof electric air cooler according to claim 3, characterized in that each of the blades (9) is arranged obliquely, in the direction of rotation.

5. An explosion-proof electric machine air cooler according to claim 4, wherein the bracket (10) adopts a tripod structure, the central part is integrally provided with and sleeved with the end part of the central rotating shaft of the electric machine, and the outer end parts are respectively arranged on the side wall of the fan housing (1).

6. The explosion-proof electric machine air cooler according to claim 5, characterized in that the outer surface of the explosion-proof junction box (6) is sprayed with an electrostatic layer.

7. An explosion-proof electric machine air cooler according to claim 6, wherein the air hood (1) is provided with mounting holes (15) on the side wall of the bracket (10) far away from the electric machine (11), corresponding to the bottom mounting bracket or the suspension type mounting.