KR20130048908A - Totally-enclosed type induction motor - Google Patents

Totally-enclosed type induction motor Download PDF

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Publication number
KR20130048908A
KR20130048908A KR1020110113820A KR20110113820A KR20130048908A KR 20130048908 A KR20130048908 A KR 20130048908A KR 1020110113820 A KR1020110113820 A KR 1020110113820A KR 20110113820 A KR20110113820 A KR 20110113820A KR 20130048908 A KR20130048908 A KR 20130048908A
Authority
KR
South Korea
Prior art keywords
frame
heat dissipation
induction motor
dissipation member
motor
Prior art date
Application number
KR1020110113820A
Other languages
Korean (ko)
Inventor
김주필
허남각
한광진
Original Assignee
현대중공업 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 현대중공업 주식회사 filed Critical 현대중공업 주식회사
Priority to KR1020110113820A priority Critical patent/KR20130048908A/en
Publication of KR20130048908A publication Critical patent/KR20130048908A/en

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/18—Casings or enclosures characterised by the shape, form or construction thereof with ribs or fins for improving heat transfer

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  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Motor Or Generator Cooling System (AREA)

Abstract

The present invention relates to a totally closed external induction motor that can prevent the deterioration of heat dissipation efficiency by securing an installation space of the heat dissipation member by forming a frame portion adjacent to the motor installation bottom in a flat shape. The linear flow motor includes a frame for providing a space in which a stator and a rotor are provided, and a heat dissipation member provided on the surface of the frame, and the lower surface of the frame has a plane shape parallel to the installation bottom surface of the motor. It is characterized in that the configuration.

Description

Totally closed type induction motor {Totally-enclosed type induction motor}

The present invention relates to a totally closed external induction motor, and more particularly, a frame portion adjacent to the bottom of the motor installation in a flat shape to secure an installation space of the heat dissipation member to prevent the heat dissipation efficiency from being lowered. It relates to a linear induction motor.

Induction motors are classified into open type, drip-proof type, totally enclosed outer line type and explosion-proof type according to the outer shell type. Among them, the totally closed external type is most widely used because it is used outdoors and withstands moisture and dust relatively well. Korean Utility Model Registration No. 20-341474 provides an example of a fully closed induction motor.

Looking at the structure of the totally closed external induction motor, as shown in Figure 1, the frame 110 forming the overall appearance, and the stator 120 and the rotor 130 is provided inside the frame 110 to produce power ) The frame 110 has a cylindrical shape, and a heat dissipation fin 140 for dissipating heat inside the frame 110 is provided on the surface of the frame 110. In addition, one side of the frame 110 is provided with an outer fan 150 and a fan cover 160 surrounding the outer fan 150.

In the conventional totally closed-type external flow motor, as described above, the heat radiation fin 140 is provided on the surface of the frame 110, and the frame 140 is adjacent to the floor as the frame 140 forms a cylindrical shape. There is a restriction on the shape of the heat radiation fins 140 formed on (see FIG. 2). That is, in the case of the frame portion adjacent to the bottom, as the distance between the bottom surface and the frame is shortened, there is a problem that the length of the heat dissipation fin should be shortened or the installation of the heat dissipation fin becomes difficult (see dotted line in FIG. 2).

As such, when the length of the heat radiation fins is short or difficult to install, the heat radiation efficiency is lowered, affecting the output of the motor, and it is difficult to expect the output on the specification. In addition, as described above, one side of the frame is provided with a fan cover, and since the cross section of the frame has a problem in that a part of the fan cover needs to be processed in an opening form to accommodate the frame, and the fan cover is partially opened. Cooling efficiency by the external fan is reduced.

Korea Utility Model Publication No. 20-341474

The present invention has been made in order to solve the above problems, by forming a frame portion adjacent to the motor installation floor in a flat shape to secure the installation space of the heat dissipation member to prevent the heat dissipation efficiency is lowered The purpose is to provide a linear induction motor.

In addition, it is another object of the present invention to provide a totally closed external induction motor that can prevent the cooling efficiency is lowered by omitting the opening of the fan cover by applying a fan cover corresponding to the frame shape.

In order to achieve the above object, a fully closed external flow motor according to the present invention includes a frame providing a space in which a stator and a rotor are provided, and a heat dissipation member provided on the surface of the frame. It is characterized in that it is configured in a plane shape parallel to the installation bottom surface of the motor.

The density of the heat radiation member installed on the lower surface of the frame may be higher than the density of the heat radiation member provided on the other surface of the frame.

The fully closed linear induction motor according to the present invention has the following effects.

As the lower surface of the frame is formed in a flat shape, it is possible not only to secure an installation space of the heat dissipation member but also to increase the density of the heat dissipation member per unit area and ultimately increase the heat dissipation efficiency.

1 is a side view of a fully closed external induction motor according to the prior art.
Figure 2 is a front view of a fully closed external induction motor according to the prior art.
Figure 3 is a perspective view of a fully closed external induction motor according to an embodiment of the present invention.
Figure 4 is a front view of a fully closed external induction motor according to an embodiment of the present invention.

The present invention maximizes the heat dissipation efficiency by maximizing the heat dissipation member provided in the lower portion of the frame of the totally closed external induction motor. It features.

Hereinafter, a fully closed external induction motor according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

3 and 4, the fully closed linear induction motor 300 according to an embodiment of the present invention includes a frame 310. The frame 310 is provided with a stator and a rotor (not shown) for generating power.

A heat dissipation member 320 is provided around the frame 310, and the heat dissipation member 320 serves to discharge heat generated inside the frame 310 to the outside. The heat dissipation member 320 is disposed at a predetermined interval on the surface of the frame 310, each heat dissipation member 320 is provided along the longitudinal direction of the frame (310).

Meanwhile, as described above, the present invention aims to flatten the lower surface 311 of the frame 310 to increase the loading density per unit area of the heat dissipation member 320 and ultimately improve the heat dissipation efficiency of the frame 310. In order to implement this, as shown in FIG. 4, the overall structure of the frame 310 is cylindrical and the cross-sectional shape is circular, but the lower surface 311 of the frame 310 is flat. That is, the lower surface 311 of the frame 310 is parallel to the installation bottom surface is provided with a fully closed external induction motor. In the conventional case, the frame 310 has a perfect circle, and in the case of the bottom of the frame 310, the frame 310 is very close to the bottom surface, so that it is difficult to secure a space for the heat dissipation member 320 to be installed. As the lower surface 311 of the 310 is implemented in a plane form parallel to the bottom surface, it is possible to ensure a stable installation space of the heat dissipation member 320.

In order to secure the installation space of the heat dissipation member 320, the bottom surface 311 and the bottom surface of the frame 310 need to be spaced apart by a predetermined distance, and the space between the bottom surface 311 and the bottom surface of the frame 310 The distance may be designed in consideration of the geometric size of the heat dissipation member 320. In addition, by implementing the lower surface 311 of the frame 310 in a flat shape, it is possible to increase the unit density of the heat dissipation member 320 installed on the plane, thereby improving the heat dissipation efficiency. That is, as the lower surface 311 of the frame 310 has a planar shape, the installation density of the heat dissipation member 320 of the lower surface 311 of the frame 310 may be increased in preparation for other surfaces of the frame 310. have.

In addition, in the conventional case, a structural change is required to open one end of the fan cover in order to fit the circular frame 310, but in the present invention, since the lower surface 311 of the frame 310 forms a planar shape, a separate fan No cover processing is required.

310: frame 311: bottom surface of the frame
320: heat dissipation member

Claims (2)

A frame providing a space in which the stator and the rotor are provided; And
It comprises a heat radiating member provided on the surface of the frame,
The lower surface of the frame is a fully closed outer induction motor, characterized in that it is configured in a plane shape parallel to the installation bottom surface of the motor.
The total closed line induction motor according to claim 1, wherein the density of the heat dissipation member installed on the lower surface of the frame is higher than the density of the heat dissipation member provided on the other surface of the frame.
KR1020110113820A 2011-11-03 2011-11-03 Totally-enclosed type induction motor KR20130048908A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020110113820A KR20130048908A (en) 2011-11-03 2011-11-03 Totally-enclosed type induction motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020110113820A KR20130048908A (en) 2011-11-03 2011-11-03 Totally-enclosed type induction motor

Publications (1)

Publication Number Publication Date
KR20130048908A true KR20130048908A (en) 2013-05-13

Family

ID=48659802

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020110113820A KR20130048908A (en) 2011-11-03 2011-11-03 Totally-enclosed type induction motor

Country Status (1)

Country Link
KR (1) KR20130048908A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20160076082A (en) 2014-12-22 2016-06-30 현대중공업 주식회사 Induction Motor
US10291094B2 (en) 2015-12-17 2019-05-14 Hyundai Electric & Energy Systems Co., Ltd. Motor frame

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20160076082A (en) 2014-12-22 2016-06-30 현대중공업 주식회사 Induction Motor
US10291094B2 (en) 2015-12-17 2019-05-14 Hyundai Electric & Energy Systems Co., Ltd. Motor frame

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