CN102497040B - Vent segment, ventilating duct using vent segment and motor using ventilating duct - Google Patents

Vent segment, ventilating duct using vent segment and motor using ventilating duct Download PDF

Info

Publication number
CN102497040B
CN102497040B CN 201110372923 CN201110372923A CN102497040B CN 102497040 B CN102497040 B CN 102497040B CN 201110372923 CN201110372923 CN 201110372923 CN 201110372923 A CN201110372923 A CN 201110372923A CN 102497040 B CN102497040 B CN 102497040B
Authority
CN
China
Prior art keywords
vent segment
segment
vent
fin
ventilation
Prior art date
Application number
CN 201110372923
Other languages
Chinese (zh)
Other versions
CN102497040A (en
Inventor
廖毅刚
蒋富强
王超
李冬梅
刘传坤
Original Assignee
东方电气集团东方电机有限公司
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 东方电气集团东方电机有限公司 filed Critical 东方电气集团东方电机有限公司
Priority to CN 201110372923 priority Critical patent/CN102497040B/en
Publication of CN102497040A publication Critical patent/CN102497040A/en
Application granted granted Critical
Publication of CN102497040B publication Critical patent/CN102497040B/en

Links

Abstract

The invention, which belongs to the large-sized and medium-sized motor heat radiation technology field, discloses a vent segment, a ventilating duct using the vent segment and a motor using the ventilating duct. The vent segment comprises a vent segment main body; fins are arranged on the vent segment main body along a wind direction of a duct; the fins form included angles with the vent segment main body. According to the vent segment, the ventilating duct using the vent segment and the motor using the ventilating duct in the invention, fins are increased; therefore, a heat radiation area between flowing air and an iron core in a stator duct can be effectively increased; turbulence of cooling air flowing in the duct can be improved; and compared with an original ventilating duct structure, the provided ventilating duct structure enables a high heat transfer coefficient of the cooling air at a same flow velocity to be ensured, so that an objective that the temperature rise of a motor stator can be effectively reduced with given losses of the motor stator can be achieved.

Description

Vent segment and with the ventilation ducts of this vent segment and with the motor of this ventilation ducts

Technical field

The present invention relates to a kind of cooling system of large and medium-sized motor stator, particularly a kind of large and medium-sized motor stator ventilation ducts radiator structure.

Background technology

Hydraulic generator stator wind ditch, it is the main position that stator (iron core and coil) and coolant carry out heat exchange, the vent segment of Feng Gou both sides is being born to the important function of air heat radiation, and the quality of its structure is directly connected to the quality of the effect of generator cooling.The principal element that affects the stator heat-sinking capability with the contact area of cooling-air and the flow regime of cooling-air in the stator wind ditch, in this case, stator ventilation ducts structure that existing routine is aptery, be subject to the restriction of area of dissipation and cooling-air fluidised form, the cooling effectiveness of cooling-air can not effectively be improved, so stator temperature rise also can not get effectively reducing.

Summary of the invention

Goal of the invention of the present invention is: for the problem of above-mentioned existence, provide a kind of simple in structure, easy to maintenance quick, vent segment with low cost and with the ventilation ducts of this vent segment and with the motor of this ventilation ducts, can effectively increase the area of dissipation between the moving air and iron core in the stator wind ditch by increasing fin, improve the turbulence level that cooling-air flows in the wind ditch, guarantee that cooling-air relative original structure under identical flow velocity has higher thermal transmission coefficient, thereby can reach the purpose that in the certain situation of motor stator loss, effectively reduces the motor stator temperature rise.

The technical solution used in the present invention is as follows:

Vent segment of the present invention comprises the vent segment body, along wind ditch wind direction fin is set on the vent segment body, and described fin and vent segment body form angle.

Owing to adopted said structure, be provided with fin on this vent segment body, because this fin is mainly used in accelerating heat radiation, therefore should guarantee fin ventilation condition on every side, avoid again that its area is excessive to be blocked distinguished and admirablely, impact heat radiation therefore need to be with the wind direction setting of fin along the wind ditch, thereby guarantee distinguished and admirablely to flow along the fin direction, guarantee that its radiating effect is good.Described fin and vent segment body form angle, thereby increase the area of contact hot air flow on the vent segment body, so that cooling-air is from bumping with fin surface and taking away loss, can effectively increase area of dissipation by increasing fin, improve the turbulence level that cooling-air flows in the wind ditch, guarantee that cooling-air relative original structure under identical flow velocity has higher thermal transmission coefficient, thereby can reach the purpose that in the certain situation of motor stator loss, effectively reduces the motor stator temperature rise.

Vent segment of the present invention, described fin be on the vent segment body along wind ditch wind direction offer cut and the turnover form.

Owing to adopted said structure, this fin is by offering cut on the vent segment body, with the turnover of part vent segment body, kept certain inclination angle to form fin so that should turn down vent segment body and the both sides vent segment surface of part, therefore from this cut, vent segment of the present invention, very simple of structure made easyly, is convenient to process, and with low cost, be beneficial to and apply.

Vent segment of the present invention, described vent segment are divided into vent segment and lower vent segment, and described lower vent segment is by arranging ventilation steel channel along wind ditch wind direction on the wind slotted vane body, and the both sides that ventilation steel channel is positioned at fin form.

Owing to adopted said structure, ventilation steel channel to be arranged at the both sides of fin, the i.e. both sides of fin, and this ventilation steel channel is arranged on the wind slotted vane body along wind ditch wind direction, ventilation steel channel is played a supporting role when vent segment uses, and avoids the setting of ventilation steel channel to block ventilation, has affected heat radiation.So vent segment of the present invention, structure is surely leaned on, and can guarantee the fail safe of using.

Vent segment of the present invention, described ventilation steel channel comprise the first channel-section steel, the second channel-section steel and all are welded on the lower vent segment.

Owing to adopted said structure, ventilation steel channel is divided into various structures, and all is welded on the lower vent segment, thereby so that the Stability Analysis of Structures of vent segment is reliable, and easy to process quick.

Employing of the present invention has the ventilation ducts of vent segment, and upper vent segment and lower vent segment are complemented each other to form the ventilation ducts structure, and the fin on the upper vent segment and the fin on the lower vent segment point to mutually, and the space.

Owing to adopted said structure, upper vent segment and lower vent segment are complemented each other to form the ventilation ducts structure, and the fin on the fin on the upper vent segment and the lower vent segment points to mutually, and do not contact, it also is the space, thereby so that form vent passages between upper vent segment and the lower vent segment, fin on two vent segments points to mutually, and do not contact mutually, thereby the excessively air quantity in the assurance vent passages is maximum, and avoid to stopping of ventilating, so that the radiating effect on the fin is best.Two two adjacent fins contact in opposite directions and not, and the both sides at fin are provided with ventilation steel channel, thereby in this passage, reach and be bigger than air quantity most, and so that fin is positioned at the centre position of this vent passages in opposite directions, thereby have maximum ventilation quantity around the assurance fin, reach best radiating effect.Therefore employing of the present invention has the ventilation ducts of vent segment, in ventilation ducts, increase fin, can effectively increase the area of dissipation of moving air in the wind ditch, improve the turbulence level that cooling-air flows in the wind ditch, guarantee that cooling-air relative original structure under identical flow velocity has higher thermal transmission coefficient, thereby can reach the purpose of effective reduction motor stator temperature rise.

Employing of the present invention has the motor of ventilation ducts, comprise motor stator and rotor, described motor stator mainly is comprised of stator core segment and ventilation ducts section space, wired rod is set on the described stator core segment, and described ventilation ducts section connects successively the loop configuration layer that surrounds by the ventilation ducts structure and forms.

Owing to adopted said structure, wired rod is set on the stator core segment, the layout that is used for the line of motor, adopt stator core segment and ventilation ducts section space to make at motor stator, namely be up and down stator core segment from the ventilation ducts section, and be stator core segment between two ventilation ducts sections, and increased the ventilation channel, the assurance radiating effect is good, and connecting the loop configuration layer that surrounds successively by the ventilation ducts structure, the ventilation ducts section forms, also namely cooperate the ventilation ducts that forms to be arranged in order connection by a plurality of upper vent segments and lower vent segment, form the ventilation ducts segment structure of annular, again that a plurality of ventilation ducts sections and a plurality of stator core segment space are overlapping, form motor stator.Employing of the present invention has the motor of ventilation ducts, simple in structure, easy to maintenance quick, with low cost, can effectively increase the area of dissipation between the moving air and iron core in the stator wind ditch by increasing fin, improve the turbulence level that cooling-air flows in the wind ditch, guarantee that cooling-air relative original structure under identical flow velocity has higher thermal transmission coefficient, thereby can reach the purpose that in the certain situation of motor stator loss, effectively reduces the motor stator temperature rise.

In sum, owing to adopted technique scheme, the invention has the beneficial effects as follows:

1. very simple of vent segment of the present invention, structure made easyly, be convenient to process, and with low cost, be beneficial to and apply;

2. employing of the present invention has the ventilation ducts of vent segment, can avoid to stopping of ventilating, so that the radiating effect on the fin is best;

3. employing of the present invention has the motor of ventilation ducts, effectively increased the area of dissipation between the interior moving air of stator wind ditch and the iron core, improve the turbulence level that cooling-air flows in the wind ditch, guarantee that cooling-air relative original structure under identical flow velocity has higher thermal transmission coefficient, thereby can reach the purpose that in the certain situation of motor stator loss, effectively reduces the motor stator temperature rise.

Description of drawings

Fig. 1 is the structural representation of radiating fin of the present invention;

Fig. 2 is the A-A partial sectional view among Fig. 1;

Fig. 3 is the structural representation of the lower vent segment among the present invention

Fig. 4 is the B-B partial sectional view among Fig. 2;

Fig. 5 is the partial schematic diagram of motor stator ventilation ducts structure of the present invention;

Fig. 6 is the structure chart of channel-section steel on the lower vent segment among the present invention.

Mark among the figure: vent segment, 4a-fin under 1-stator core segment, 2-ventilation steel channel, 2-1-the first channel-section steel, 2-2-the second channel-section steel, 3-line rod, 4-vent segment body, the upper vent segment of 4-1-, the 4-2-.

Embodiment

Below in conjunction with accompanying drawing, the present invention is described in detail.

In order to make purpose of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, is not intended to limit the present invention.

Described wind ditch wind direction refers to that cooling air tangentially enters direction of ventilation behind the stator wind ditch from air gap.

Extremely shown in Figure 6 such as Fig. 1, vent segment of the present invention, comprise vent segment body 4, on vent segment body 4, along wind ditch wind direction fin 4a is set, described fin 4a and vent segment body 4 form angle, described fin 4a be on the vent segment body 4 along wind ditch wind direction offer cut and the turnover form, can certainly adopt independent fin 4a to be welded on the vent segment body 4, as long as satisfy fin 4a and vent segment body 4 formation angles, but this angle is not limited, can according to the length adjustment of the fin 4a of reality, be advisable to satisfy heat radiation.Described vent segment is divided into vent segment 4-1 and lower vent segment 4-2, described lower vent segment 4-2 forms by along wind ditch wind direction ventilation steel channel 2 being set on the wind slotted vane body 4, and ventilation steel channel 2 is positioned at the both sides of fin 4a, it also is the left and right sides of fin 4a, thereby can guarantee in use, after upper vent segment 4-1 and lower vent segment 4-2 cooperatively interact, fin 4a on two slotted vanes is positioned in the middle of the ventilation steel channel 2 of its both sides, be convenient to heat radiation, and described ventilation steel channel 2 comprises the first channel-section steel 2-1, the second channel-section steel 2-2, and all be welded on the lower vent segment 4-2, difference according to each position, select different ventilation steel channels 2 to match, thereby each position reach maximum ventilation quantity around guaranteeing fin 4a, guarantees radiating effect.Adopt the ventilation ducts of above-mentioned vent segment, upper vent segment 4-1 and lower vent segment 4-2 are complemented each other to form the ventilation ducts structure, and the fin 4a on the fin 4a on the upper vent segment 4-1 and the lower vent segment 4-2 points to mutually, and space, so that the fin on two vent segments contacts in opposite directions and not, thereby fin fully contacts with vent air, and the fin 4a on the fin 4a on the vent segment 4-1 and the lower vent segment 4-2 is positioned at the centre of two ventilation steel channels 2, make its ventilation quantity larger, have best radiating effect.

The motor of the above-mentioned ventilation ducts of employing of the present invention, comprise motor stator and rotor, described motor stator mainly is comprised of stator core segment 1 and ventilation ducts section space, arrange wired excellent 3 on the described stator core segment 1, described ventilation ducts section connects successively the loop configuration layer that surrounds by the ventilation ducts structure and forms, wired rod is set on the stator core segment 1, adopt stator core segment 1 and ventilation ducts section space to make at motor stator, namely be up and down stator core segment 1 from the ventilation ducts section, and be stator core segment 1 between two ventilation ducts sections, increased the ventilation channel, the assurance radiating effect is good, and connecting the loop configuration layer that surrounds successively by the ventilation ducts structure, the ventilation ducts section forms, also namely cooperate the ventilation ducts that forms to be arranged in order connection by a plurality of upper vent segment 4-1 and lower vent segment 4-2, form the ventilation ducts segment structure of annular, again that a plurality of ventilation ducts sections and a plurality of stator core segment 1 space are overlapping, form motor stator.Vent segment of the present invention and with the ventilation ducts of this vent segment and with the motor of this ventilation ducts, simple in structure, easy to maintenance quick, with low cost, can effectively increase the area of dissipation between the moving air and iron core in the stator wind ditch by increasing fin, improve the turbulence level that cooling-air flows in the wind ditch, guarantee that cooling-air relative original structure under identical flow velocity has higher thermal transmission coefficient, thereby can reach the purpose that in the certain situation of motor stator loss, effectively reduces the motor stator temperature rise.

The above only is preferred embodiment of the present invention, not in order to limiting the present invention, all any modifications of doing within the spirit and principles in the present invention, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.

Claims (4)

1. vent segment, it is characterized in that: it comprises vent segment body (4), along wind ditch wind direction fin (4a) is set in that vent segment body (4) is upper, described fin (4a) forms angle with vent segment body (4); Described fin (4a) is offered cut and is turned down along wind ditch wind direction for vent segment body (4) is upper and forms; Described vent segment is divided into vent segment (4-1) and lower vent segment (4-2), described lower vent segment (4-2) upward arranges ventilation steel channel (2) along wind ditch wind direction by vent segment body (4) and forms, and ventilation steel channel (2) is positioned at the both sides of fin (4a).
2. vent segment as claimed in claim 1, it is characterized in that: described ventilation steel channel (2) comprises the first channel-section steel (2-1), the second channel-section steel (2-2), and all is welded on the lower vent segment (4-2).
3. the employing ventilation ducts of requirement 1 or 2 described vent segments of having the right, it is characterized in that: upper vent segment (4-1) and lower vent segment (4-2) are complemented each other to form the ventilation ducts structure, and the fin (4a) on the upper vent segment (4-1) points to the fin (4a) on the lower vent segment (4-2) is mutual, and the space.
4. the employing motor of requirement 3 described ventilation ductss of having the right, comprise motor stator and rotor, it is characterized in that: described motor stator mainly is comprised of stator core segment (1) and ventilation ducts section space, wired rod (3) is set on the described stator core segment (1), and described ventilation ducts section connects successively the loop configuration layer that surrounds by the ventilation ducts structure and forms.
CN 201110372923 2011-11-22 2011-11-22 Vent segment, ventilating duct using vent segment and motor using ventilating duct CN102497040B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201110372923 CN102497040B (en) 2011-11-22 2011-11-22 Vent segment, ventilating duct using vent segment and motor using ventilating duct

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201110372923 CN102497040B (en) 2011-11-22 2011-11-22 Vent segment, ventilating duct using vent segment and motor using ventilating duct

Publications (2)

Publication Number Publication Date
CN102497040A CN102497040A (en) 2012-06-13
CN102497040B true CN102497040B (en) 2013-10-16

Family

ID=46188838

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201110372923 CN102497040B (en) 2011-11-22 2011-11-22 Vent segment, ventilating duct using vent segment and motor using ventilating duct

Country Status (1)

Country Link
CN (1) CN102497040B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6097648B2 (en) * 2013-07-10 2017-03-15 株式会社日立製作所 Power conversion device and railway vehicle equipped with the same
CN103746481B (en) * 2014-01-20 2015-09-23 国网新源控股有限公司 A kind of stator core ventilation ducts structure
CN104578486B (en) * 2014-12-26 2018-04-27 北京金风科创风电设备有限公司 Ventilation steel channel, its manufacture method, aeration structure and motor
CN108282039A (en) * 2017-12-07 2018-07-13 浙江大学 A kind of vortex heat dissipation stator ventilating system of welding fin

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US662928A (en) * 1900-01-18 1900-12-04 Gen Electric Space-block for armatures.
SU1640779A2 (en) * 1989-03-07 1991-04-07 Е.В. Останькович и Д.Е. Почуйко Electric machine
CN201750241U (en) * 2010-07-05 2011-02-16 上海电气集团上海电机厂有限公司 Air duct structure of motor iron core
CN202405891U (en) * 2011-11-22 2012-08-29 东方电气集团东方电机有限公司 Ventilating slot sheet, ventilating duct using the ventilating slot sheet and motor using the ventilating duct

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US662928A (en) * 1900-01-18 1900-12-04 Gen Electric Space-block for armatures.
SU1640779A2 (en) * 1989-03-07 1991-04-07 Е.В. Останькович и Д.Е. Почуйко Electric machine
CN201750241U (en) * 2010-07-05 2011-02-16 上海电气集团上海电机厂有限公司 Air duct structure of motor iron core
CN202405891U (en) * 2011-11-22 2012-08-29 东方电气集团东方电机有限公司 Ventilating slot sheet, ventilating duct using the ventilating slot sheet and motor using the ventilating duct

Also Published As

Publication number Publication date
CN102497040A (en) 2012-06-13

Similar Documents

Publication Publication Date Title
CN101384818B (en) Thermal management system for wind turbine
CN105680602B (en) A kind of motor convenient for fluid flowing
CN100547881C (en) A kind of motor stator water-cooling method and device
JP2008205421A (en) Heat exchanger
CN103717036B (en) Radio remote unit (RRU) and communication device
KR20100026865A (en) Nacelle cooling system of wind turbine
RU2471682C2 (en) Turbojet engine for airborne vehicle
JP4202887B2 (en) Semiconductor cooling device
CN204676198U (en) Two cooled filament cooling device
TWI455461B (en) Cooling jacket
US10145253B2 (en) Stator vane formed by a set of vane parts
CN104283405B (en) Traction converter and railway vehicle
CN102457136A (en) Electrical equipment with heat dissipation by heat exchanging fluid and external heat exchange
JP4561408B2 (en) Rotating electric machine
JP6200748B2 (en) Wind power generation equipment
CN203071797U (en) Cooling system of converter
JP2004186702A (en) Cooling device for power converter
CN102769356A (en) Permanent magnet synchronous traction motor with air cooling structure and air cooling method of permanent magnet synchronous traction motor
CN103219869B (en) The cooler of power converter for railway rolling stock
WO2015099471A1 (en) Heat-radiating device for transformer
JP2009152455A (en) Semiconductor cooling structure
US20150010402A1 (en) Cooling system of a wind turbine
CN102064635B (en) Steam turbine generator provided with axial-radial ventilating and cooling system
CN101925742B (en) Wind turbine generator with heat exchanger
TWM243830U (en) Liquid cooling apparatus

Legal Events

Date Code Title Description
PB01 Publication
C06 Publication
SE01 Entry into force of request for substantive examination
C10 Entry into substantive examination
GR01 Patent grant
C14 Grant of patent or utility model