CN106655630B - A kind of hollow cooler - Google Patents

A kind of hollow cooler Download PDF

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Publication number
CN106655630B
CN106655630B CN201611217482.1A CN201611217482A CN106655630B CN 106655630 B CN106655630 B CN 106655630B CN 201611217482 A CN201611217482 A CN 201611217482A CN 106655630 B CN106655630 B CN 106655630B
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China
Prior art keywords
hot
vent cabinet
perforated plate
wind
vent
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CN106655630A (en
Inventor
杨照
黎贤钛
涂佳
虞礼辉
黄维
杨性晓
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Zhejiang ERG Technology Inc
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Zhejiang ERG Technology Inc
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    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K9/00Arrangements for cooling or ventilating
    • H02K9/10Arrangements for cooling or ventilating by gaseous cooling medium flowing in closed circuit, a part of which is external to the machine casing

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Air-Conditioning Room Units, And Self-Contained Units In General (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

The present invention provides a kind of hollow coolers, belong to cooler technical field.It solves the problems, such as that existing cooler is poor for applicability.This hollow cooler includes vent cabinet, centrifugal blower and axial flow blower, upper perforated plate is fixed at the top of vent cabinet, bottom is fixed with lower perforated plate, partition is equipped in vent cabinet, there are vent passages between the bottom and lower perforated plate of partition, cavity in vent cabinet is divided into the vented cavity and installation cavity of left and right settings by partition, multiple heat exchanger tubes are equipped in installation cavity along the vertical direction, the bottom of multiple heat exchanger tubes has cold wind import, the top of multiple heat exchanger tubes is exported with cold wind, axial flow blower is located at cold wind exit, the top of vent cabinet side wall is provided with hot wind inlet, hot-blast outlet is also provided on vent cabinet, hot wind inlet passes through installation cavity, vent passages and vented cavity are connected with hot-blast outlet, centrifugal blower is located at hot-blast outlet.This hollow cooler has the advantages that applicability is good, reduces the trouble of design iterations.

Description

A kind of hollow cooler
Technical field
The invention belongs to cooler technical fields, are related to a kind of hollow cooler.
Background technique
With the development of motor technology, generator capacity is increasing, and calorific value is also higher and higher, therefore, in generator When power generation, needs to configure corresponding cooling device and be used to cool down generator, prevent generator from breaking down, extend The service life of generator.
Existing cooling device, for example, Chinese patent literature data disclose a kind of air-cooled cooler [application number: 201020514119.8;Authorization Notice No.: CN201794757U] comprising wind gathering circle, cooling blower, wind scooper and wind scooper The cooling unit of lower section installation, cooling unit is made of at least one level single layer cooler, single layer cooler include intake pipe and Lower inlet duct connects one group of cooling tube being connected to them, the both ends difference of lower inlet duct between intake pipe and lower inlet duct It is connected with inlet suction port and air outlet adapter;Be respectively equipped with 1-3 partition in intake pipe and lower inlet duct, intake pipe under into Endotracheal partition formation is staggered, and one group of cooling tube is divided into and is contacted by upper and lower air inlet pipe by staggered partition Cooling tube group.
The air-cooled cooler of this kind of structure includes cooling tube, is entered in cooling tube by the cold air that cooling blower generates Cool down cooling tube to compressed air.But the air-cooled cooler of this kind of structure, it is carried out when to lower-powered generator When cooling, the negligible amounts of cooling tube, when cooling down to the biggish generator of power, the quantity of cooling tube is more, this is just The position of intake pipe, lower inlet duct and connection frame etc. is caused to require to make corresponding adjustment, to make the wind of this kind of structure The size of cold cooler needs to redesign when can be cooled down for different generators, and the outer dimension of cooler changes greatly, Consistency is poor, and needs design iterations, design trouble.
Summary of the invention
The purpose of the present invention is being directed to the above-mentioned problems in the prior art, a kind of hollow cooler is proposed, is solved The technical issues of be how to reduce the trouble of hollow cooler design iterations.
Object of the invention can be realized by the following technical scheme: a kind of hollow cooler, including vent cabinet, centrifugation wind Machine and axial flow blower, which is characterized in that upper perforated plate is fixed at the top of the vent cabinet, bottom is fixed with lower perforated plate, described logical It is equipped with partition in wind cabinet, there are vent passages between the bottom and lower perforated plate of the partition, the partition is by the sky in vent cabinet Chamber is divided into the vented cavity and installation cavity of left and right settings, is provided with multiple heat exchanger tubes, Duo Gehuan along the vertical direction in the installation cavity The both ends of heat pipe are fixedly connected with upper perforated plate and lower perforated plate respectively, and the bottom of multiple heat exchanger tubes has cold wind import, multiple heat exchanger tubes Top exported with cold wind, the axial flow blower is located at cold wind exit, the top of the vent cabinet side wall be provided with hot wind into Mouthful, it is also provided with hot-blast outlet on the vent cabinet, the hot wind inlet is gone out by installation cavity, vent passages and vented cavity and hot wind Mouth is connected, and the centrifugal blower is located at hot-blast outlet.
Vent cabinet is divided into the vented cavity and installation cavity of left and right settings by partition, and installation cavity is used to install heat exchanger tube, axis stream wind Machine drives extraneous cold air to enter in heat exchanger tube from cold wind import and exports discharge from cold wind again, and centrifugal blower will be in generator Hot-air be drawn into installation cavity from hot wind inlet, the cold air in installation cavity in hot-air and heat exchanger tube carries out hot friendship It changes, to reduce the temperature of hot-air, the hot-air after being cooled down enters vented cavity from vent passages, then passes through centrifugation wind Machine re-enters into generator, cools down to generator, and the air themperature carried out after heat exchange with generator increases again, Entering in installation cavity again by hot wind inlet and carrying out heat exchange, cycle heat exchange, and cold air is under in vent cabinet It flows up, hot-air is to flow from the top to the bottom in vent cabinet, and the flow direction of cold air and hot-air is opposite, adverse current Heat exchange, heat exchange efficiency are high.Installation cavity is used to install heat exchanger tube, and vented cavity is empty, if cooled generator power is big, needs The number of heat exchange tubes wanted is more, can be mobile to vented cavity side by partition accordingly, so that vented cavity is reduced installation cavity accordingly corresponding Increase, i.e., mountable more heat exchanger tubes improve heat exchange amount, whereas if cooled generator power is small, what is needed is changed Heat pipe quantity is few, can be mobile to installation cavity side by partition accordingly, so that vented cavity is increased installation cavity accordingly and reduces accordingly ?.For the generator of different capacity, this hollow cooler only needs to change the position of partition, the size of vent cabinet without Need to change, centrifugal blower and axial flow blower need to only replace corresponding power according to actual needs, this hollow cooler it is big Small, volume has no significant change, and without redesigning, reduces the trouble of design iterations, strong applicability.
In a kind of above-mentioned hollow cooler, the partition includes lattice and guide part, and the lattice is along vertical Direction setting, the guide part are obliquely installed, and are had between the lattice and the junction and lower perforated plate of guide part described logical Wind channel, the top of the guide part are connected with the vent cabinet inner sidewall above hot-blast outlet.Partition is metal plate, passes through bending Lattice and guide part are formed, for the generator of different capacity, when design only needs to change the length or separation of metal plate Angle between portion and guide part reduces the trouble of hollow cooler design iterations without excessively changing other designs;Incline The guide part being tiltedly arranged plays the role of guiding, reduces air drag, can accelerate the flow velocity of air, to improve heat exchange effect Rate.
In a kind of above-mentioned hollow cooler, the partition further includes interconnecting piece, the connecting portion in lattice and Between guide part, the interconnecting piece is horizontally disposed, has the vent passages, institute between the interconnecting piece and lower perforated plate It states and is equipped with several support plates at vent passages, and the top of several support plates is fixedly connected with interconnecting piece, bottom and lower perforated plate It is fixedly connected with.Partition is metal plate, by being bent to form lattice, interconnecting piece and guide part, for the generator of different capacity, if Timing only needs to change the angle between the length or interconnecting piece and guide part of metal plate, sets without excessively changing other Meter, reduces the trouble of design iterations;And the integral strength of partition can be improved in the setting of interconnecting piece and support plate, make partition by It will not be shaken when to hot air impingement, improve the structural stability of this hollow cooler.
In a kind of above-mentioned hollow cooler, the hot-blast outlet is located at the lower part of vent cabinet.I.e. centrifugal blower is located at The lower part of vent cabinet, the setting of centrifugal blower face vent passages, pressure is big, and the circulation that can accelerate hot-air improves generator Cooling effect, and centrifugal blower is located at the lower part of vent cabinet, keeps the center of gravity of centrifugal blower lower, can reduce centrifugal blower work Vibration when making reduces noise, improves the stability of this hollow cooler.
In a kind of above-mentioned hollow cooler, several are fixed on the side wall of the vent cabinet and centrifugal blower face Reinforcing rib.Larger with the vibration of the shell of the vent cabinet of centrifugal blower right opposite when centrifugal blower works, setting reinforcing rib can be with The vibration for reducing shell improves the stability of this hollow cooler, reduces noise.
In a kind of above-mentioned hollow cooler, wind-collecting cover is fixed at the hot-blast outlet, the wind-collecting cover is close to logical The diameter of wind cabinet one end is greater than wind-collecting cover close to the diameter of the centrifugal blower other end, and the side wall of the wind-collecting cover is arc-shaped.Collect wind The efficiency of centrifugal blower can be improved in the setting of cover, improves the cooling efficiency of generator.
In a kind of above-mentioned hollow cooler, air outlet box is fixed at the top of the vent cabinet, the cold wind exports position In the side of air outlet box, the air outlet box is whole in arc after being connected with the other side of cold wind outlet face with the top of air outlet box Shape.Guiding is played the role of to cold wind in the side and top of arc, so that cold wind is preferably exported from cold wind and is discharged, to mention The flow velocity and flow of high air improve heat exchange efficiency.
In a kind of above-mentioned hollow cooler, the cold wind exit is equipped with fan housing, and the axial flow blower is located at fan housing In.The setting of fan housing prevents the foreign matter in air from falling in vent cabinet, and fan housing provides installation space for axial flow blower.
In a kind of above-mentioned hollow cooler, the two sides of the upper perforated plate protrude from the side of vent cabinet, it is described on If being provided with dry plate ribs between tube sheet and vent cabinet, the air outlet box is mounted on upper perforated plate.The setting of ribs improves Vent cabinet, axial flow blower firmly install degree, to reduce the vibration of this hollow cooler, reduce noise, and this kind is tied Structure keeps the volume of vent cabinet larger, and the flow velocity and flow of cold wind can be improved, and improves heat exchange efficiency.
In a kind of above-mentioned hollow cooler, hot-air channel is fixed on the vent cabinet lateral wall, the hot wind is logical The one end in road is connected with hot wind inlet, and the hot-air channel is located at the underface of fan housing and upper perforated plate.This kind of structure, makes this sky Empty cooler is compact-sized, will not occupy the space in other orientation, so as to reduce required for the installation of this hollow cooler Space.
Compared with prior art, hollow cooler provided by the invention has the advantage that
1, this hollow cooler divides the cavity into the vented cavity and installation cavity of left and right settings by partition, to different capacity When generator is cooled down, it is only necessary to left-right position of the mobile dividing plate in vent cabinet changes the size of installation cavity, thus The quantity that can change heat exchanger tube, without redesigning to this hollow cooler rest part, strong applicability is reduced again The trouble of design.
2, the logical partition of this hollow cooler is bent to form by metal plate, to the generator of different capacity size into When row is cooling, it is only necessary to change the angle between the length or interconnecting piece and guide part of metal plate, without excessive change Other designs, reduce the trouble of hollow cooler design iterations.
3, the cold air of this hollow cooler is to flow in vent cabinet from bottom to top, and hot-air is from upper in vent cabinet It flows downward, the flow direction of cold air and hot-air is opposite, cold air and hot-air formation counterflow heat exchange, heat exchange efficiency It is high.
4, in the vent passages of this hollow cooler be arranged support plate, centrifugal blower right opposite vent cabinet side wall on set Set reinforcing rib, the two sides of upper perforated plate protrude from the side of vent cabinet, and are provided with ribs between upper perforated plate and vent cabinet, with On structure improve the firmness of this hollow cooler, keep the stability of this hollow cooler high, even if changing in installation cavity There is biggish variation in the quantity of heat pipe, this hollow cooler will not still shake, and without redesigning, improves versatility.
Detailed description of the invention
Fig. 1 is the overall structure diagram one of this hollow cooler.
Fig. 2 is the overall structure diagram two of this hollow cooler.
Fig. 3 is the schematic diagram of internal structure one of this hollow cooler.
Fig. 4 is the schematic diagram of internal structure two of this hollow cooler.
Fig. 5 is the structural schematic diagram of this hollow cooler wind-collecting cover.
Fig. 6 is the structural schematic diagram of this hollow cooler hot wind inlet.
In figure, 1, vent cabinet;2, centrifugal blower;3, axial flow blower;4, upper perforated plate;5, lower perforated plate;6, partition;61, separate Portion;62, guide part;63, interconnecting piece;7, vent passages;8, vented cavity;9, installation cavity;10, heat exchanger tube;11, cold wind import;12, Cold wind outlet;13, hot wind inlet;14, hot-blast outlet;15, support plate;16, reinforcing rib;17, wind-collecting cover;18, air outlet box;19, Fan housing;20, ribs;21, hot-air channel.
Specific embodiment
Following is a specific embodiment of the present invention in conjunction with the accompanying drawings, technical scheme of the present invention will be further described, However, the present invention is not limited to these examples.
As shown in Figure 1 and Figure 2, this hollow cooler include vent cabinet 1, centrifugal blower 2, axial flow blower 3, upper perforated plate 4, under Tube sheet 5, partition 6, heat exchanger tube 10 and air outlet box 18.
Vent cabinet 1 is square, and the inside of vent cabinet 1 has cavity, and upper perforated plate 4 is connected in the top of vent cabinet 1, lower perforated plate 5 are connected in the bottom of vent cabinet 1.The two sides of upper perforated plate 4 protrude from the side of vent cabinet 1, between upper perforated plate 4 and vent cabinet 1 Ribs 20 is set, and air outlet box 18 is connected on upper perforated plate 4, and the side of air outlet box 18 has cold wind outlet 12, cold wind outlet 12 It is connected with the external world, is equipped with fan housing 19 at cold wind outlet 12, axial flow blower 3 is located in fan housing 19, and air outlet box 18 and cold wind export The other side of 12 faces is whole arc-shaped after being connected with the top of air outlet box 18.
As shown in fig. 6, the top of 1 side wall of vent cabinet is provided with hot wind inlet 13, it is logical that hot wind is fixed on 1 lateral wall of vent cabinet The one end in road 21, hot-air channel 21 is connected with hot wind inlet 13, and the other end is connected by canvas with the air outlet of generator, Hot-air channel 21 is located at the underface of fan housing 19 and upper perforated plate 4.
As shown in figure 5, being also provided with hot-blast outlet 14 on vent cabinet 1, hot-blast outlet 14 is located at the lower part of vent cabinet 1, hot wind It exports and is fixed with wind-collecting cover 17 at 14, diameter of the wind-collecting cover 17 close to 1 one end of vent cabinet is greater than wind-collecting cover 17 close to centrifugal blower 2 The side wall of the diameter of the other end, wind-collecting cover 17 is arc-shaped, and centrifugal blower 2 is located at hot-blast outlet 14, in the present embodiment, vent cabinet 1 be fixed with four reinforcing ribs 16 on the side wall of 2 face of centrifugal blower, reinforcing rib 16 is horizontally disposed, and reinforcing rib 16 Positioned at the underface of hot wind inlet 13, in actual production, the quantity of reinforcing rib 16 can be two or eight.
As shown in Figure 3, Figure 4, partition 6 is set in vent cabinet 1, and the cavity in vent cabinet 1 is divided into left and right settings by partition 6 Vented cavity 8 and installation cavity 9 are provided with multiple heat exchanger tubes 10, the top of heat exchanger tube 10 and upper perforated plate in installation cavity 9 along the vertical direction 4 are fixedly connected with, and bottom is fixedly connected with lower perforated plate 5, and the bottom of heat exchanger tube 10 is connected with cold wind import 11, top and air outlet box 18 It is connected.
Partition 6 includes lattice 61, interconnecting piece 63 and guide part 62, interconnecting piece 63 be located at lattice 61 and guide part 62 it Between, lattice 61 is arranged along the vertical direction, and interconnecting piece 63 is horizontally disposed, and guide part 62 is obliquely installed, lattice 61 Top and 4 palette of upper perforated plate, the inner sidewall palette of two sides and vent cabinet 1, two sides and the vent cabinet 1 of interconnecting piece 63 Inner sidewall palette, the two sides of guide part 62 and the inner sidewall palette of vent cabinet 1, top and the hot wind of guide part 62 go out The 1 inner sidewall palette of vent cabinet of 14 top of mouth.There is vent passages 7, the present embodiment between interconnecting piece 63 and lower perforated plate 5 In, four support plates 15 are equipped at intervals at vent passages 7, in actual production, the quantity of support plate 15 can be two or Eight, top and the interconnecting piece 63 of support plate 15 are fixedly connected with, and bottom is fixedly connected with lower perforated plate 5.Hot wind inlet 13 passes through installation cavity 9, vent passages 7 and vented cavity 8 are connected with hot-blast outlet 14.
Hot-air channel 21 is connected with the air outlet of generator by canvas, by canvas by the outlet of centrifugal blower 2 with The import of generator is connected.In use, start axial flow blower 3, bottom cold wind import 11 of the cold air in atmosphere from vent cabinet 1 It enters in heat exchanger tube 10, is then entered in air outlet box 18 in heat exchanger tube 10 by the raised cold air of heat exchange temperature, The raised cold air of the temperature exports 12 from the cold wind being located in fan housing 19 along the arcuate guide at 18 side of air outlet box and top Discharge;Centrifugal blower 2 starts, and the hot-air in generator is entered in installation cavity 9 by hot-air channel 21, hot wind inlet 13, Carry out heat exchange is in contact with heat exchanger tube 10 in installation cavity 9, so that making the temperature of the hot-air reduces, then at this temperature The hot-air of drop is entered in vented cavity 8 by vent passages 7, then along hot-blast outlet 14, wind-collecting cover 17, centrifugal blower 2 It enters in generator with canvas, cools down to generator, the hot-air that temperature rises is again by canvas, hot-air channel 21 It is entered with hot wind inlet 13 and carries out heat exchange in installation cavity 9, followed bad heat exchange, realize the cooling of generator.
Specific embodiment described herein is only an example for the spirit of the invention.The neck of technology belonging to the present invention The technical staff in domain can make various modifications or additions to the described embodiments or replace by a similar method In generation, however, it does not deviate from the spirit of the invention or beyond the scope of the appended claims.
Although vent cabinet 1, centrifugal blower 2, axial flow blower 3, upper perforated plate 4, lower perforated plate 5, partition is used more herein 6, lattice 61, guide part 62, interconnecting piece 63, vent passages 7, vented cavity 8, installation cavity 9, heat exchanger tube 10, cold wind import 11, cold Wind outlet 12, hot-blast outlet 14, support plate 15, reinforcing rib 16, wind-collecting cover 17, air outlet box 18, fan housing 19, adds hot wind inlet 13 The terms such as strong rib 20, hot-air channel 21, but it does not exclude the possibility of using other terms.The use of these items is only for It is more convenient to describe and explain essence of the invention;It is construed as any additional limitation all and is and spirit of that invention It disagrees.

Claims (9)

1. a kind of hollow cooler, including vent cabinet (1), centrifugal blower (2) and axial flow blower (3), which is characterized in that described logical It being fixed at the top of wind cabinet (1) upper perforated plate (4), bottom is fixed with lower perforated plate (5), partition (6) are equipped in the vent cabinet (1), There are vent passages (7) between the bottom and lower perforated plate (5) of the partition (6), the partition (6) is by the sky in vent cabinet (1) Chamber is divided into the vented cavity (8) and installation cavity (9) of left and right settings, is provided with multiple heat exchange along the vertical direction in the installation cavity (9) It manages (10), the both ends of multiple heat exchanger tubes (10) are fixedly connected with upper perforated plate (4) and lower perforated plate (5) respectively, multiple heat exchanger tubes (10) Bottom has cold wind import (11), and the top of multiple heat exchanger tubes (10) has cold wind outlet (12), and the axial flow blower (3) is located at Cold wind exports at (12), and the top of vent cabinet (1) side wall is provided with hot wind inlet (13), is also provided on the vent cabinet (1) Hot-blast outlet (14), the hot wind inlet (13) pass through installation cavity (9), vent passages (7) and vented cavity (8) and hot-blast outlet (14) it is connected, the centrifugal blower (2) is located at hot-blast outlet (14), and the partition (6) is metal plate, the partition (6) packet The lattice (61) and guide part (62) by being bent to form are included, the lattice (61) is arranged along the vertical direction, the guiding Portion (62) is obliquely installed, and has the ventilation between the lattice (61) and the junction and lower perforated plate (5) of guide part (62) Channel (7), the top of the guide part (62) are connected with vent cabinet (1) inner sidewall above hot-blast outlet (14).
2. a kind of hollow cooler according to claim 1, which is characterized in that the partition (6) further includes interconnecting piece (63), the interconnecting piece (63) is located between lattice (61) and guide part (62), and the interconnecting piece (63) sets in the horizontal direction It sets, there are the vent passages (7) between the interconnecting piece (63) and lower perforated plate (5), be equipped at the vent passages (7) several A support plate (15), and the top of several support plates (15) is fixedly connected with interconnecting piece (63), bottom and lower perforated plate (5) Xiang Gu Even.
3. a kind of hollow cooler according to claim 1 or 2, which is characterized in that the hot-blast outlet (14) is located at logical The lower part of wind cabinet (1).
4. a kind of hollow cooler according to claim 1 or 2, which is characterized in that the vent cabinet (1) and centrifugal blower (2) several reinforcing ribs (16) are fixed on the side wall of face.
5. a kind of hollow cooler according to claim 1 or 2, which is characterized in that be connected at the hot-blast outlet (14) Have wind-collecting cover (17), diameter of the wind-collecting cover (17) close to vent cabinet (1) one end is greater than wind-collecting cover (17) close to centrifugal blower (2) side wall of the diameter of the other end, the wind-collecting cover (17) is arc-shaped.
6. a kind of hollow cooler according to claim 1 or 2, which is characterized in that the top of the vent cabinet (1) is connected Have air outlet box (18), the cold wind outlet (12) is located at the side of air outlet box (18), and the air outlet box (18) and cold wind export (12) it is whole arc-shaped after the other side of face is connected with the top of air outlet box (18).
7. a kind of hollow cooler according to claim 6, which is characterized in that be equipped with fan housing at the cold wind outlet (12) (19), the axial flow blower (3) is located in fan housing (19).
8. a kind of hollow cooler according to claim 7, which is characterized in that protrude the two sides of the upper perforated plate (4) In the side of vent cabinet (1), the upper perforated plate (4) and vent cabinet (1) if between be provided with dry plate reinforced sheet (20), the outlet air Case (18) is mounted on upper perforated plate (4).
9. a kind of hollow cooler according to claim 8, which is characterized in that be connected on vent cabinet (1) lateral wall Have hot-air channel (21), one end of the hot-air channel (21) is connected with hot wind inlet (13), hot-air channel (21) position In the underface of fan housing (19) and upper perforated plate (4).
CN201611217482.1A 2016-12-26 2016-12-26 A kind of hollow cooler Active CN106655630B (en)

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CN106655630B true CN106655630B (en) 2019-03-22

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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107565755B (en) * 2017-10-18 2023-11-03 江苏兆胜科技股份有限公司 Permanent magnet direct-drive motor air-air cooler
CN207542948U (en) * 2017-10-18 2018-06-26 江苏兆胜科技股份有限公司 A kind of permanent magnet direct driving motor hollow cooler

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201947119U (en) * 2011-01-28 2011-08-24 浙江润祁节能科技有限公司 Wind power air-to-air cooler
CN202103536U (en) * 2011-05-31 2012-01-04 天通浙江精电科技有限公司 Double-core body air cooling apparatus used for wind generator heat radiation
CN105264753A (en) * 2013-06-10 2016-01-20 Abb技术有限公司 An air-to-air heat exchanger

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10248209A (en) * 1997-03-06 1998-09-14 Meidensha Corp Rotary electric machine cooling structure

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201947119U (en) * 2011-01-28 2011-08-24 浙江润祁节能科技有限公司 Wind power air-to-air cooler
CN202103536U (en) * 2011-05-31 2012-01-04 天通浙江精电科技有限公司 Double-core body air cooling apparatus used for wind generator heat radiation
CN105264753A (en) * 2013-06-10 2016-01-20 Abb技术有限公司 An air-to-air heat exchanger

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PE01 Entry into force of the registration of the contract for pledge of patent right
PE01 Entry into force of the registration of the contract for pledge of patent right

Denomination of invention: An air to air cooler

Effective date of registration: 20230824

Granted publication date: 20190322

Pledgee: China Construction Bank Corporation Sanmen sub branch

Pledgor: ZHEJIANG ERG TECHNOLOGY JOINT STOCK CO.,LTD.

Registration number: Y2023330001840