CN106208525A - A kind of hollow cooler - Google Patents
A kind of hollow cooler Download PDFInfo
- Publication number
- CN106208525A CN106208525A CN201610771891.XA CN201610771891A CN106208525A CN 106208525 A CN106208525 A CN 106208525A CN 201610771891 A CN201610771891 A CN 201610771891A CN 106208525 A CN106208525 A CN 106208525A
- Authority
- CN
- China
- Prior art keywords
- heat exchanger
- exchanger tube
- cold wind
- shell
- deflection plate
- Prior art date
- Legal status (The legal status 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 status listed.)
- Granted
Links
- 238000005452 bending Methods 0.000 claims description 12
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 6
- 229910052782 aluminium Inorganic materials 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 4
- 230000008961 swelling Effects 0.000 claims description 3
- 238000001816 cooling Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 238000013475 authorization Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
Landscapes
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention provides a kind of hollow cooler, belong to cooler technical field.The problem it solving the poor stability of existing heat-exchange tube of cooler.This hollow cooler includes shell, several deflection plates and branched heat exchanger tube, one end of shell is cold wind inlet end, the other end is cold wind outlet side, the tube sheet of band installing hole all it is fixed with at cold wind inlet end and cold wind outlet side, the bottom of shell has hot wind inlet and hot-blast outlet, deflection plate and heat exchanger tube are respectively positioned in shell, heat exchanger tube sequentially passes through several deflection plates along cold wind inlet end to direction, cold wind outlet side, heat exchanger tube bends so that heat exchanger tube is fixedly connected with deflection plate at deflection plate, the two ends of heat exchanger tube are located in installing hole and the two ends of heat exchanger tube are fixedly connected with tube sheet.The advantage that the heat exchanger tube of this hollow cooler has good stability and good effect of heat exchange.
Description
Technical field
The invention belongs to cooler technical field, relate to a kind of hollow cooler.
Background technology
Electromotor operationally can produce substantial amounts of heat, need use cooler electromotor is lowered the temperature, cooling process,
Making generating function normally work, existing cooler includes that hollow cooler, hollow cooler use air as heat exchange and be situated between
Matter, carries out heat exchange by aluminum pipe.
Existing hollow cooler, such as Chinese patent literature data disclose a kind of air-air cooler [application number:
201220307555.7；Authorization Notice No.: CN202616933U], it end plate including being spliced to form framework mutually with outer housing, arrange
The dividing plate II splice mutually with outer housing in framework, separated by framework, forms air inlet with end plate and dividing plate II forms air outlet
Dividing plate I；Joint at air-air cooler two ends end plate with outer housing installs arc elbow I；In the institute that dividing plate II connects with outer housing
Right angle turn is had to be provided with arc elbow II；Arc elbow III, this arc it is provided with near one end of outer housing at dividing plate I
Elbow III is towards inside cooler.
The air-air cooler of this kind of structure, pipe is inserted by the circular hole of end plate one end, and passes on dividing plate I and dividing plate II
Circular hole, is installed in the circular hole of the end plate other end, and pipe is fastened onto in the circular hole at end plate two ends.The air-air cooling of this kind of structure
Device, pipe, through dividing plate I and dividing plate II, has gap between lateral wall and the circular hole medial wall of dividing plate I and dividing plate II of pipe,
Pipe is not connected with dividing plate I and dividing plate II, and electromotor vibration velocity under some operating mode is fast, and time of vibration is long, the interlude of pipe
It is in the state beated, pipe can be made to be easily damaged because friction, collision, work a period of time between pipe and dividing plate I and dividing plate II
After can crack, cause tracheal rupture after cracks can spread, make cooler can not normally heat exchange, electromotor can not be safe and stable
Run.
Summary of the invention
It is an object of the invention to for the above-mentioned problems in the prior art, it is proposed that a kind of hollow cooler, solve
Technical problem is how improve the stability of heat-exchange tube of cooler and heat transfer effect.
The purpose of the present invention can be realized by following technical proposal: a kind of hollow cooler, including shell, and described shell
One end be cold wind inlet end, the other end is cold wind outlet side, is all fixed with band at described cold wind inlet end and cold wind outlet side
The tube sheet of installing hole, the bottom of described shell has hot wind inlet and hot-blast outlet, it is characterised in that also include several bafflings
Plate and branched heat exchanger tube, described deflection plate and heat exchanger tube be respectively positioned in shell, and described heat exchanger tube goes out along cold wind inlet end to cold wind
Gas extreme direction sequentially passes through several deflection plates, and described heat exchanger tube bends at deflection plate so that heat exchanger tube and deflection plate are solid mutually
Even, the two ends of described heat exchanger tube are located in installing hole and the two ends of heat exchanger tube are fixedly connected with tube sheet.
By heat exchanger tube tube sheet installing hole at cold wind inlet end inserts, sequentially pass through deflection plate, until heat exchanger tube is worn
It is located in the tube sheet of cold wind outlet side, after heat exchanger tube has worn, by press, two adjacent deflection plates is applied direction phase
Anti-power, makes the tube bank of heat exchanger tube entirety bend, so that heat exchanger tube produces pretightning force with deflection plate thus is fixedly connected with, then
Being fixedly connected with tube sheet at the two ends of heat exchanger tube, i.e. two ends and the centre of heat exchanger tube is all fixing, and the overall structure of heat exchanger tube is stable
Property good, intensity is high, and heat exchanger tube will not rock, good stability, and service life is long；And owing to heat exchanger tube is bent, cold wind is changing
In heat pipe, the resistance of flowing becomes big, and turbulent heat transfer coefficient becomes big, and cooler overall heat exchange coefficient strengthens, thus improves cooler
Heat transfer effect.
In above-mentioned a kind of hollow cooler, described deflection plate having multiple through hole, described heat exchanger tube is through corresponding
Through hole, during the non-bending of heat exchanger tube, between medial wall and the lateral wall of heat exchanger tube of described through hole, there is gap.This kind of structure,
Make heat exchanger tube will not block when passing deflection plate, easy to assembly；After heat exchanger tube bending, certain deformation can be produced in through hole
Amount, and this deformation quantity that exists in gap provides space, makes heat exchanger tube will not damage when bending.
In above-mentioned a kind of hollow cooler, the heat exchange pipeline section after bending and cold wind inlet end are to the side of cold wind outlet side
Angle between to is between 2-6 °.After this hollow cooler is installed, along cold wind inlet end to the direction of cold wind outlet side it is exactly
Horizontal direction, forms branched heat exchange pipeline section after heat exchanger tube bending, and the angle between every heat exchange pipeline section and horizontal direction is all at 2-
Between 6 °, and the size of angle is identical, and the angle of angle is less, will not be owing to becoming when making heat exchanger tube bending be fixedly connected with deflection plate
Shape is excessive and damages.
In above-mentioned a kind of hollow cooler, the quantity of described deflection plate is three pieces, and described deflection plate is equally spaced to be set
In shell, between described hot wind inlet deflection plate outside two, described hot-blast outlet be positioned at deflection plate outside two with
Between corresponding tube sheet.The quantity of hot wind inlet is one, and the quantity of hot-blast outlet is two, and the heat that electromotor produces is from one
Individual hot wind inlet enters into carry out in shell cooling down and is recycled into electromotor from two hot-blast outlets, and this kind of structure makes
Cooler can play more preferable cooling effect.
In above-mentioned a kind of hollow cooler, the bottom of the deflection plate outside two is fixed with against plate.Length against plate
Spend consistent with the width of shell, play the steady of support deflection plate and the effect of heat exchanger tube, raising deflection plate and heat exchanger tube against plate
Qualitative, enable this hollow cooler to be preferably installed on electromotor against plate.
In above-mentioned a kind of hollow cooler, there is between top and the top of shell of described deflection plate air-flow and lead to
Road.This hollow cooler is positioned at the top of electromotor, and the setting of gas channel enables the steam through heat exchange again to flow back to
In electromotor.
In above-mentioned a kind of hollow cooler, described exchanger tubes and tubesheets passes through expanding joint process swelling.Pass through heat exchanging
Pipe carries out expansion makes exchanger tubes and tubesheets be fixedly connected with, and the firmness being connected is high, connected place will not hinder cold wind flowing and
It is not result in that hot blast is revealed, improves the heat transfer effect of this hollow cooler.
In above-mentioned a kind of hollow cooler, described heat exchanger tube is aluminum pipe.Aluminum pipe has good conductive force, passes through
Aluminum pipe carries out the heat exchange of cold wind and hot blast, and heat exchange efficiency is high.
In above-mentioned a kind of hollow cooler, the outer end of described cold wind inlet end is provided with blower fan, described blower fan and shell
Between be provided with tapered first guiding fan housing, described first guides the fan housing internal diameter near the left end of blower fan more than the first guiding
Fan housing is near the internal diameter of the right-hand member of shell, and described cold wind outlet side is provided with the second tapered guiding fan housing, and described second guides
The fan housing internal diameter near one end of shell is less than the internal diameter of the other end.Blower fan is as power source, it is provided that power, and first guides fan housing
Setting enable cold wind to enter into faster in heat exchanger tube, second guide fan housing setting enable the cold wind after heat exchange
Being collected, be then discharged to the external world by ft connection pipeline, blower fan, the first setting guiding fan housing and the second guiding fan housing carry
The flow of cold wind in high heat exchanger tube, thus improve heat transfer effect.
Compared with prior art, the hollow cooler that the present invention provides has the advantage that
1, this hollow cooler by adjacent two deflection plates are applied power in opposite direction make the bending of branched heat exchanger tube from
And making the centre of heat exchanger tube and deflection plate be fixedly connected with, the two ends of heat exchanger tube and tube sheet are fixedly connected with, the firmness that heat exchanger tube is fixing
Height, heat exchanger tube will not rock after being connected, will not vibrate, and cooler integral rigidity is good, good stability, and heat exchanger tube will not damage, and sends out
The good stability of motor work.
2, the heat exchanger tube of this hollow cooler is bent, and the resistance that cold wind flows in heat exchanger tube becomes big, and cooler is overall
The coefficient of heat transfer strengthens, thus improves the heat transfer effect of cooler.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram of this hollow cooler.
In figure, 1, shell；2, cold wind inlet end；3, cold wind outlet side；4, tube sheet；5, hot wind inlet；6, hot-blast outlet；7、
Deflection plate；8, heat exchanger tube；9, against plate；10, gas channel；11, blower fan；12, first fan housing is guided；13, second fan housing is guided.
Detailed description of the invention
The following is the specific embodiment of the present invention and combine accompanying drawing, technical scheme is further described,
But the present invention is not limited to these embodiments.
As it is shown in figure 1, this hollow cooler include shell 1, tube sheet 4, deflection plate 7, heat exchanger tube 8, against plate 9 and blower fan
11.Heat exchanger tube 8 is aluminum pipe.
Shell 1 is in rectangular-shaped, and one end of shell 1 is cold wind inlet end 2, and the other end is cold wind outlet side 3, cold wind air inlet
The tube sheet 4 of band installing hole all it is fixed with at end 2 and cold wind outlet side 3.
The quantity of deflection plate 7 is three pieces, and deflection plate 7 sets along cold wind inlet end 2 to the direction of cold wind outlet side 3 is equally spaced
In shell 1, deflection plate 7 having multiple through hole, branched heat exchanger tube 8 initially passes through the installing hole of cold wind inlet end 2 tube sheet 4, so
After sequentially pass through the through hole of three pieces of deflection plates 7, then be located in the installing hole of tube sheet 4 of cold wind outlet side 3, through hole and installing hole
Diameter all slightly larger than the outside of heat exchanger tube 8, be i.e. respectively provided with gap between heat exchanger tube 8 and through hole and installing hole, in the present embodiment,
The size in this gap is 0.4mm, and in actual production, the size in this gap can be 0.3mm or 0.5mm.Then by pressure
Machine is pointed to the deflection plate 7 of middle and is pressed downward against, and makes this deflection plate 7 move down, so that the bending of heat exchanger tube 8 stress, then
Being turned around by whole hollow cooler, the deflection plate 7 using press to will be located in both sides is pressed downward against, so that the heat exchanger tube at this
8 stress bendings, then overturn hollow cooler, the bottom of the deflection plate 7 outside two is fixed with against plate 9, the top of deflection plate 7
And having gas channel 10 between the top of shell 1, in the present embodiment, the heat exchanger tube after bending 8 sections and cold wind inlet end 2 are to cold
Angle between the direction of wind outlet side 3 is 3 °, and in actual production, this angle can be 4 ° or 5 °.Then expanded joint is passed through
Technique is by heat exchanger tube 8 and tube sheet 4 swelling.
The bottom of shell 1 has hot wind inlet 5 and hot-blast outlet 6, and the quantity of hot wind inlet 5 is one, and hot wind inlet 5
Between deflection plate 7 outside two, the quantity of hot-blast outlet 6 is two, and hot-blast outlet 6 is positioned at the deflection plate 7 outside two
And between corresponding tube sheet 4.
Blower fan 11 is located at the outer end of cold wind inlet end 2, is provided with the first tapered guiding fan housing between blower fan 11 and shell 1
12, first guides the fan housing 12 internal diameter near the left end of blower fan 11 guides fan housing 12 in the right-hand member of shell 1 more than first
Footpath, cold wind outlet side 3 is provided with the second tapered guiding fan housing 13, and second guides the fan housing 13 internal diameter near one end of shell 1
Internal diameter less than the other end.
This hollow cooler is arranged on the top of electromotor, and the gas outlet of electromotor is connected with hot wind inlet 5, electromotor
Air inlet is connected with hot-blast outlet 6.During work, blower fan 11 starts, and is sent in heat exchanger tube 8 by extraneous cold wind, exchanges heat pipe 8
Cool down, the steam that generator operation produces enter into shell 1 from hot wind inlet 5 and with heat exchanger tube 8 contact heat-exchanging, exchange
Heat pipe 8 heats up, and air carries out heat exchange by heat exchanger tube 8, makes to follow after electromotor hot-air out is lowered the temperature
Ring enters in electromotor, cools down electromotor, enables electromotor normally to work.
Specific embodiment described herein is only to present invention spirit explanation for example.Technology neck belonging to the present invention
Described specific embodiment can be made various amendment or supplements or use similar mode to replace by the technical staff in territory
Generation, but without departing from the spirit of the present invention or surmount scope defined in appended claims.
Although the most more employing shell 1, cold wind inlet end 2, cold wind outlet side 3, tube sheet 4, hot wind inlet 5, heat
Wind outlet 6, deflection plate 7, heat exchanger tube 8, guide fan housing 12, second guide fan housing against plate 9, gas channel 10, blower fan 11, first
13 terms such as grade, but it is not precluded from using the probability of other term.Use these terms to be only used to more easily to describe and
Explain the essence of the present invention；It is all contrary with spirit of the present invention for being construed as any additional restriction.
Claims (9)
1. a hollow cooler, including shell (1), one end of described shell (1) is cold wind inlet end (2), and the other end is cold
Wind outlet side (3), described cold wind inlet end (2) and cold wind outlet side (3) place are all fixed with the tube sheet (4) of band installing hole, described
The bottom of shell (1) has hot wind inlet (5) and hot-blast outlet (6), it is characterised in that also include several deflection plates (7) and
Multiple heat exchanger tubes (8), described deflection plate (7) and heat exchanger tube (8) are respectively positioned in shell (1), and described heat exchanger tube (8) is along cold wind air inlet
End (2) sequentially passes through several deflection plates (7) to cold wind outlet side (3) direction, and described heat exchanger tube (8) is curved at deflection plate (7) place
Folding is so that heat exchanger tube (8) is fixedly connected with deflection plate (7), and the two ends of described heat exchanger tube (8) are located in installing hole and heat exchanger tube
(8) two ends are fixedly connected with tube sheet (4).
A kind of hollow cooler the most according to claim 1, it is characterised in that have multiple logical on described deflection plate (7)
Hole, described heat exchanger tube (8) passes corresponding through hole, during heat exchanger tube (8) non-bending, the medial wall of described through hole and heat exchanger tube (8)
Lateral wall between there is gap.
A kind of hollow cooler the most according to claim 1, it is characterised in that heat exchanger tube (8) section after bending and cold wind
The inlet end (2) angle between the direction of cold wind outlet side (3) is between 2-6 °.
4. according to a kind of hollow cooler described in claim 1 or 2 or 3, it is characterised in that the quantity of described deflection plate (7)
Being three pieces, described deflection plate (7) is equally spaced to be located in shell (1), and described hot wind inlet (5) is positioned at the deflection plate outside two
(7), between, described hot-blast outlet (6) is positioned between the deflection plate (7) outside two and corresponding tube sheet (4).
5. according to a kind of hollow cooler described in claim 1 or 2 or 3, it is characterised in that the deflection plate (7) outside two
Bottom is fixed with against plate (9).
6. according to a kind of hollow cooler described in claim 1 or 2 or 3, it is characterised in that the top of described deflection plate (7)
And there is between the top of shell (1) gas channel (10).
7. according to a kind of hollow cooler described in claim 1 or 2 or 3, it is characterised in that described heat exchanger tube (8) and tube sheet
(4) by expanding joint process swelling.
8. according to a kind of hollow cooler described in claim 1 or 2 or 3, it is characterised in that described heat exchanger tube (8) is aluminum pipe.
9. according to a kind of hollow cooler described in claim 1 or 2 or 3, it is characterised in that described cold wind inlet end (2)
Outer end is provided with blower fan (11), is provided with tapered first guiding fan housing (12) between described blower fan (11) and shell (1), and described the
One guides fan housing (12) is more than the first right-hand member guiding the close shell (1) of fan housing (12) near the internal diameter of the left end of blower fan (11)
Internal diameter, described cold wind outlet side (3) is provided with the second tapered guiding fan housing (13), and described second guides fan housing (13) near outward
The internal diameter of one end of shell (1) is less than the internal diameter of the other end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610771891.XA CN106208525B (en) | 2016-08-30 | 2016-08-30 | A kind of hollow cooler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610771891.XA CN106208525B (en) | 2016-08-30 | 2016-08-30 | A kind of hollow cooler |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106208525A true CN106208525A (en) | 2016-12-07 |
| CN106208525B CN106208525B (en) | 2019-05-28 |
Family
ID=58088422
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610771891.XA Active CN106208525B (en) | 2016-08-30 | 2016-08-30 | A kind of hollow cooler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106208525B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110230933A (en) * | 2019-06-28 | 2019-09-13 | 扬中申扬换热设备有限公司 | A kind of novel air cooler |
| CN117672722A (en) * | 2023-12-11 | 2024-03-08 | 广东微容电子科技有限公司 | MLCC (multi-layer ceramic) aging-removing cooling device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2198589Y (en) * | 1994-01-24 | 1995-05-24 | 王闰 | Wave tube heat exchanger |
| JP2006246603A (en) * | 2005-03-03 | 2006-09-14 | Hitachi Ltd | Rotary electric machine |
| CN101834490A (en) * | 2010-05-04 | 2010-09-15 | 浙江尔格科技有限公司 | Cooler of wind power generator |
| CN202616933U (en) * | 2012-06-28 | 2012-12-19 | 湘潭电机股份有限公司 | Air-to-air cooler |
-
2016
- 2016-08-30 CN CN201610771891.XA patent/CN106208525B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2198589Y (en) * | 1994-01-24 | 1995-05-24 | 王闰 | Wave tube heat exchanger |
| JP2006246603A (en) * | 2005-03-03 | 2006-09-14 | Hitachi Ltd | Rotary electric machine |
| CN101834490A (en) * | 2010-05-04 | 2010-09-15 | 浙江尔格科技有限公司 | Cooler of wind power generator |
| CN202616933U (en) * | 2012-06-28 | 2012-12-19 | 湘潭电机股份有限公司 | Air-to-air cooler |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110230933A (en) * | 2019-06-28 | 2019-09-13 | 扬中申扬换热设备有限公司 | A kind of novel air cooler |
| CN117672722A (en) * | 2023-12-11 | 2024-03-08 | 广东微容电子科技有限公司 | MLCC (multi-layer ceramic) aging-removing cooling device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106208525B (en) | 2019-05-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| AU2015293384B9 (en) | Fin-and-Tube Type Heat Exchanger and Water Heater Including the Same | |
| CN106208525A (en) | A kind of hollow cooler | |
| CN105953620A (en) | Serial efficient floating heat exchanger | |
| CN207716926U (en) | A kind of chimney cooler with guiding baffle plate | |
| CN202793096U (en) | Hairpin type heat exchanger | |
| JP6562672B2 (en) | Air conditioner | |
| CN103206720A (en) | Positive pressure sealing method and positive pressure sealing system for rotary air preheater | |
| CN106461295A (en) | Improved heat exchanger | |
| CN208606619U (en) | Shell-and-tube heat exchanger | |
| CN201828179U (en) | Tube bank for tube box-free air cooler | |
| CN109945717B (en) | A kind of high-temperature cooler set of heat exchange tubes | |
| CN102226529B (en) | Sleeve type metal radiation heat exchanger | |
| CN101532753A (en) | Heat exchanger structure of air conditioner | |
| KR101465047B1 (en) | Heat recovery steam generator and method of manufacturing the same | |
| CN114018074A (en) | Space double-vortex-tube elastic tube bundle heat exchanger | |
| JP2013124625A (en) | Heat exchanger | |
| CN107560006B (en) | Heat exchanger and air conditioner | |
| CN203823735U (en) | Coal economizer | |
| JP5742073B2 (en) | Heat exchanger and hot water device provided with the same | |
| CN101738103A (en) | Heat exchanging device and heat exchanging system | |
| CN206060429U (en) | A kind of cooler | |
| CN101392947A (en) | Installation and fixation structure of air-conditioner heat exchanger | |
| CN101392993A (en) | Flue heat exchanger | |
| CN105222617A (en) | A kind of low flow resistance heat exchanger for natural cycle system | |
| CN104697364A (en) | Pipe type heat exchanger |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| 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: 20210808 Granted publication date: 20190528 Pledgee: China Construction Bank Corporation Sanmen sub branch Pledgor: ZHEJIANG ERG TECHNOLOGY JOINT STOCK Co.,Ltd. Registration number: Y2021330001100 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20230822 Granted publication date: 20190528 Pledgee: China Construction Bank Corporation Sanmen sub branch Pledgor: ZHEJIANG ERG TECHNOLOGY JOINT STOCK CO.,LTD. Registration number: Y2021330001100 |
|
| PC01 | Cancellation 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: 20190528 Pledgee: China Construction Bank Corporation Sanmen sub branch Pledgor: ZHEJIANG ERG TECHNOLOGY JOINT STOCK CO.,LTD. Registration number: Y2023330001840 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |