CN1707187A - Ventilator - Google Patents
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- CN1707187A CN1707187A CN 200410019507 CN200410019507A CN1707187A CN 1707187 A CN1707187 A CN 1707187A CN 200410019507 CN200410019507 CN 200410019507 CN 200410019507 A CN200410019507 A CN 200410019507A CN 1707187 A CN1707187 A CN 1707187A
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- heat exchanger
- room air
- outdoor air
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Abstract
The present invention relates to one kind of air exchange device. In the space exhausting outdoor air or indoor air from the heat exchanger inside the casing, one flow stabilizer is set to change the flow of the outdoor air or indoor air from the heat exchanger into laminar flow so as to homogenize the flow of outdoor air or indoor air in the heat exchanger and to raise heat exchange efficiency.
Description
Technical field
The present invention relates to a kind of air interchanger (ventilating device), relate in particular to a kind of outdoor air and room air, become Laminar Flow and improve the air interchanger of air-supply efficient and heat exchanger effectiveness through after carrying out the heat exchanger of heat exchange.Above-mentioned air interchanger is discharged to time in the outdoor air suction chamber to room air outdoor, makes to carry out heat exchange between room air and the outdoor air, keeping comfortable environment after the ventilation of the air of the interior space.
Background technology
Generally, the air of enclosure space is because the respiration of life entity and as time goes by, the content of carbon dioxide raises.Carbon dioxide content can make the breathing of life entity feel very ill when increasing, so often use air interchanger at the many narrow spaces of people such as office or vehicle, the air of indoor pollution is changed into outdoor ozone.This air interchanger has forces the pressure fan that blows to room air and outdoor air, by pressure fan the room air that pollutes is discharged to be drawn into fresh outdoor air indoor again outdoor the time.But when indoor refrigeration and ventilation are carried out simultaneously, the outer hot-air of suction chamber when discharging along with a room air of refrigeration, the temperature of room air is compared cryogenic temperature and is risen, the refrigerating efficiency reduction.When in indoor heating and ventilation when carrying out simultaneously, the outer cold air of suction chamber when a room air that heats is discharged, the temperature of room air is compared and is heated temperature and descend, and heating efficiency reduces.
Above-mentioned air interchanger also is provided with and makes the heat exchanger that produces heat exchange between room air and the outdoor air.Fig. 1 and Fig. 2 demonstrate according to the stereogram of the air interchanger of prior art and profile.
The words that specify, as shown in Figures 1 and 2, login discloses the flat 09-137984 of communique number existing air interchanger at Japan Patent, forms the outdoor air inlet hole 4a of suction chamber outer air and the room air tap 6b of discharge room air in a side of rectangular container 2; The another side of shell 2 forms outdoor air tap 4b that discharges outdoor air and the room air inlet hole 6a that sucks room air; The central authorities of shell 2 are provided with heat exchanger 8, are formed with the stream of outdoor air and indoor air flows in the described heat exchanger 8; The both sides central authorities of shell 2 are respectively arranged with the drawing fan 10 and the scavenger fan 20 of discharging room air of suction chamber outer air.In addition, shell 2 inside also are provided with the 7a of space obstacle portion that forms air duct, 7b and air channel (duct) 9a, 9b.The above-mentioned space obstacle 7a of portion, 7b guides to the outdoor air that sucks from outdoor air inlet hole 4a heat exchanger 8 or the room air that sucks from room air inlet hole 6a is guided to heat exchanger 8; Above-mentioned air channel 9a, 9b is expelled to the outdoor air by heat exchanger 8 outdoor air tap 4b or the room air by heat exchanger 8 is expelled to room air tap 6b.Above-mentioned heat exchanger 8 is by being formed on dismountable being arranged in the shell 2 of inspection socket 2a of shell 2 central sides.And make the corner part of heat exchanger 8 slidably insert to be arranged on and be respectively formed at the 7a of space obstacle portion, 7b two ends and air channel 9a are on the track of 9b above and below (rail) 5.In order to improve heat exchanger effectiveness, also can the parallel connection alongst of a plurality of heat exchangers 8 be set.Above-mentioned drawing fan 10 and scavenger fan 20 are arranged on and connect air channel 9a respectively, the fan installing rack 12 that 9b is provided with, 22 inboard, and drawing fan 10 and scavenger fan 20 all adopt the Sirocco fan (sirocco fan) of discharging along radial direction again behind direction of principal axis suction chamber outer air or the room air.The motor 14,24 that drives drawing fan 10 and scavenger fan 20 respectively is fixedly installed on separately the fan installing rack 12,22.And driving the motor 14 of drawing fan 10 and the motor 24 of driving scavenger fan 20 is provided with towards the both sides of heat exchanger 8 central authorities.
But in the air interchanger according to prior art, outdoor air or room air by heat exchanger 8 directly pass through drawing fan or scavenger fan 20, make air accelerate suddenly and sinuous flow takes place flow in the part flowing velocity that drawing fan 10 or scavenger fan 20 are set, and flow resistance and flow losses take place thus, thereby reduce air-supply efficient.In addition, in the air interchanger according to prior art, drawing fan 10 or scavenger fan 20 are owing to be arranged on the middle body of heat exchanger 8, air flows uniformly in heat exchanger 8 fronts, and near the position of drawing fan 10 or scavenger fan 20, producing very big pressure differential between side of heat exchanger 8 and the another side, and on away from the position of drawing fan 10 or scavenger fan 20, produce less pressure differential, make in heat exchanger 8 near the air stream that forms on the position of drawing fan 10 or scavenger fan 20 at a high speed, make most of air only in heat exchanger 8, on the position near drawing fan 10 or scavenger fan 20 heat exchange action take place, thereby reduce heat exchanger effectiveness.
Summary of the invention
In order to solve the problems of the technologies described above, the air interchanger that when the purpose of this invention is to provide the sinuous flow phenomenon that takes place in the outdoor air that can reduce by heat exchanger or the room air outdoor air or room air is flowed uniformly at whole heat exchanger.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of air interchanger comprises shell, air-supply arrangement, heat exchanger, mobile constant current device.Be formed with a pair of inlet hole and a pair of tap of discharging outdoor air or room air of suction chamber outer air or room air on the described shell; Described air-supply arrangement is separately positioned on above-mentioned a pair of tap inboard, blows outdoor air or room air; Described heat exchanger portion in the enclosure crosses and is provided with, for carrying out heat exchange action between outdoor air and the room air; Described mobile constant current device is arranged on the space from heat exchanger discharge outdoor air or room air of enclosure, and outdoor air or room air by heat exchanger are transformed into Laminar Flow.The one side of air interchanger shell of the present invention forms outdoor air inlet hole and room air tap, opposing face forms outdoor air tap and room air inlet hole, air interchanger of the present invention also comprises outdoor air stream guider and room air stream guider, when described outdoor air stream guider guides the outdoor air heat exchanger direction that flows into the outdoor air inlet hole room air through over-heat-exchanger is guided to room air tap direction; When described room air stream guider guides the room air heat exchanger direction that flows into the room air inlet hole outdoor air through over-heat-exchanger is guided to outdoor air tap direction.Above-mentioned mobile constant current device is arranged near the room air stream guider end of heat exchanger or the end of outdoor air stream guider, and mobile constant current device is parallel to the one side of shell and is provided with.And the mobile constant current device among the present invention has grid or keep at a certain distance away in vertical direction several horizontal louvres that are provided with or several vertical blinds that keep at a certain distance away in the horizontal direction and be provided with that certain thickness passage forms for several.Above-mentioned shutter rotary setting can open and close the space of discharging outdoor air or room air from heat exchanger.
According to of the present invention arouse device in the enclosure portion be provided with mobile constant current devices such as grid, horizontal louvres, vertical blind, be transformed into laminar flow when making air by heat exchanger through these mobile constant current devices, prevented to have improved air-supply efficient because of mobile flow resistance and the flow losses that cause of sinuous flow.In the air interchanger of the present invention in addition, formation has the grid of certain thickness passage and guiding air and flows and have mobile constant current devices such as certain thickness horizontal louvres and vertical blind because be arranged between heat exchanger and the fan, owing to the pressure differential of the constant current device front and back end of flowing also flows air air when flowing uniformly in the front of the constant current device that flows uniformly at whole heat exchanger, thereby improved heat exchanger effectiveness.
Description of drawings
Fig. 1 is the schematic perspective view according to the air interchanger of prior art;
Fig. 2 is the generalized section according to the air interchanger of prior art;
Fig. 3 is the schematic perspective view according to air interchanger of the present invention;
Fig. 4 is the floor map according to air interchanger of the present invention;
Fig. 5 is the schematic perspective view according to another embodiment of air interchanger constant current device of the present invention;
Fig. 6 is along the generalized section of A-A line among Fig. 4;
Fig. 7 is along the generalized section of B-B line among Fig. 4.
The critical piece description of reference numerals
32: shell 42: the outdoor air inlet hole
44: outdoor air tap 46: the room air inlet hole
48: room air tap 50: heat exchanger
60: air-breathing air-supply arrangement 70: air exhausting blower
82: outdoor air stream guider 84: room air stream guider
94: the second grids of 92: the first grids
102: horizontal louvres 104: vertical blind
The specific embodiment
Below, describe in detail according to a preferred embodiment of the invention with reference to accompanying drawing.Fig. 3 and Fig. 4 are according to the stereogram of air interchanger of the present invention and floor map; Fig. 5 is the schematic perspective view according to another embodiment of air interchanger constant current device of the present invention; Fig. 6 and Fig. 7 are the generalized section of Fig. 4 kind along A-A line and B-B line.
As shown in Figures 3 and 4, form the outdoor air inlet hole 42 of suction chamber outer air and the room air tap 48 of discharge room air in a side of rectangular container 32, the another side of shell 32 forms outdoor air tap 44 of discharging outdoor air and the room air inlet hole 46 that sucks room air; The central authorities of crossing shell 32 are provided with heat exchanger 50, and described heat exchanger 50 carries out heat exchange between outdoor air and room air; Above-mentioned tap 44,48 inboards are provided with the air- supply arrangement 60,70 of discharging outdoor air or room air; Stream guider 82,84 is outdoor air that sucks by inlet hole or the guiding of room air heat exchanger 50 directions; The constant current device that flows is arranged on shell 32 inside and discharges in the space of outdoor air or room air from heat exchanger 50, and outdoor air or room air through over-heat-exchanger 50 are transformed into Laminar Flow.One side of shell 32 forms outdoor air inlet hole 42 and room air tap 48, and the another side of shell 32 forms outdoor air tap 44 and room air inlet hole 46.And shell 32 1 sides form the inspection socket 34h that makes heat exchanger 50 slide and insert, and described inspection socket 34h goes up dismountable inspection socket cover cap 34 that is provided with.And for the upper and lower side that makes heat exchanger 50 can slidably insert, the portion top and bottom form gathering sill 36 respectively in the enclosure.
On inlet hole 42,46 that forms on the shell 32 and tap 44,48, form respectively to the outstanding pipeline connecting portion 42a of shell 32 lateral direction, 44a, 46a, 48a.The pipeline connecting portion 42a that is formed on outdoor air inlet hole 42 connects the outdoor air intake line (not demonstrating among the figure) that links to each other with the outside; The pipeline connecting portion 44a that is formed on outdoor air tap 44 connects the outdoor air intake line (not demonstrating among the figure) that links to each other with the indoor; The pipeline connecting portion 46a that is formed on room air inlet hole 46 connects the room air intake line (not demonstrating among the figure) that links to each other with the indoor; The pipeline connecting portion 48a that is formed on room air tap 48 connects the room air intake line (not demonstrating among the figure) that links to each other with the outside.
Above-mentioned heat exchanger 50 is by a plurality of first, second heat exchange elements 52 of the heat exchange membranes 50a superimposed layer of square shape or hexagonal configuration, 54 constitute, described first, second heat exchange elements 52,54 lead rib (guiderib) 50b, be arranged side by side along diagonal.At this moment, outdoor air, flows into the back and discharges from the top of another side as benchmark with heat exchanger 50 from bottom, shell one side; Room air, flows into the back and discharges from the bottom of a side as benchmark with heat exchanger 50 from top, shell another side, outdoor air and room air carry out heat exchange action like this.Form bypass stream (not demonstrating among the figure) between heat exchanger 50 rear ends and the shell 32, described bypass stream is provided with the bypass air door 38 that can open and close.Bypass air door 38 makes from the obstructed over-heat-exchanger 50 of room air of room air inlet hole 46 suctions but directly by 48 discharges of room air tap.
Above-mentioned air-breathing air-supply arrangement 60 is made of drawing fan 62, fan drum 64, motor 66, motor brace table 68, and described drawing fan 62 is a kind of Sirocco fan, is arranged on outdoor air tap 44 inboards; Described fan drum 64 inside are provided with drawing fan 62, and outdoor air is guided to outdoor air tap 44 directions; Described motor 66 is used to drive drawing fan 62; Described motor brace table 68 is fixed on motor 66 on the fan drum 64.Above-mentioned air exhausting blower 70 and air-breathing air-supply arrangement 60 are the same to be made of scavenger fan 72, fan drum 74, motor 76, motor brace table 78, and described scavenger fan 72 is a kind of Sirocco fan, is arranged on room air tap 48 inboards; Described fan drum 74 inside are provided with scavenger fan 72, and room air is guided to room air tap 48 directions; Described motor 76 is used to drive scavenger fan 72; Described motor brace table 78 is fixed on motor 76 on the fan drum 74.The motor 76 that drives the motor 66 of drawing fan 62 and drive scavenger fan 72 is provided with towards shell 32 sides that form inspection socket 34h, checks after the user can be dismantled easily by inspection socket 34h and keeps in repair.
Above-mentioned stream guider 82,84 comprise outdoor air stream guider 82 and room air stream guider 84, when outdoor air heat exchanger 50 directions of 82 inflows of described outdoor air stream guider outdoor air inlet hole 42 guide a room air of discharging from heat exchanger 50 are guided to room air tap 48; Described room air stream guider 84 is arranged between shell 32 and heat exchanger 50 another sides, when room air heat exchanger 50 directions that flow into room air inlet hole 46 are guided an outdoor air of discharging from heat exchanger 50 is guided to outdoor air tap 44.At this moment, described outdoor air stream guider 82 is arranged between shell 32 medial chamber outer air inlet holes 42 and room air tap 48 and heat exchanger 50 1 sides, project upwards formation in the part that is connected with outdoor air inlet hole 42, make the outdoor air that sucks by outdoor air inlet hole 42 be directed to bottom, heat exchanger 50 1 side; The part that is connected with room air tap 48 is swelled formation downwards, makes the room air that is discharged to top, heat exchanger 50 1 side be directed to room air tap 48.Air exhausting blower 70 is arranged on room air tap 48 inboards, outdoor air stream guider 82 part of protuberance downwards.Room air stream guider 84 is arranged between shell 32 medial chamber outer air taps 44 and room air inlet hole 46 and heat exchanger 50 another sides, the part that is connected with outdoor air tap 44 is swelled formation downwards, makes the outdoor air that is expelled to heat exchanger 50 another sides be directed to outdoor air tap 44; The part that is connected with room air inlet hole 46 projects upwards formation, makes the room air that sucks by room air inlet hole 46 be directed to bottom, heat exchanger 50 another side.Air-breathing air-supply arrangement 60 is arranged on outdoor air tap 44 inboards, the outstanding part of room air stream guider 84 downwards.The end of outdoor air stream guider 82 and room air stream guider 84 forms gathering sill 82a, 84a, and the formation of the two sides of heat exchanger 50 can slidably be inserted above-mentioned gathering sill 82a, the direction protrusion 82b of 84a, 84b.So heat exchanger 50 slidably is combined between outdoor air stream guider 82 and the room air stream guider 84.
Above-mentioned mobile constant current device is for having several passages 92a of certain thickness W in the horizontal direction, first, second grid (Straightner) 92,94 that 94a forms.Described first, second grid 92,94 is separately positioned on outdoor air stream guider 82 ends or room air stream guider 84 ends near heat exchanger 50, and is parallel to the one side of the shell 32 that forms inlet hole 42,46 or tap 44,48.Because first, second grid 92,94 forms several passage 92a along horizontal direction, 94a, make air along passage 92a, 94a becomes Laminar Flow when flowing, and has prevented that sinuous flow from flowing and the flow resistance and the flow losses of generation, thereby improves air-supply efficient.And first, second grid 92,94 by several passages 92a with certain thickness W, 94a constitutes, driving along with drawing fan 62 or scavenger fan 72, the pressure of drawing fan 62 or scavenger fan 72 reduces, thereby at first, second grid 92,94 front and back end produces pressure differential, thus at first, second grid 92,94 front air flows uniformly, along with flowing uniformly at the front of first, second grid 92,94 air, air also flows uniformly in the front of heat exchanger 50, thereby improves heat exchanger effectiveness.
As shown in Figure 5, mobile constant current device also can be keep at a certain distance away on the vertical direction several horizontal louvres 102 that are provided with or several vertical blinds 104 that keep at a certain distance away in the horizontal direction and be provided with.Above-mentioned shutter 102,104 has certain width in order to guide flowing of air.The constant current device that flows can only be constituted or only is made of vertical blind 104 by horizontal louvres 102, also can be provided with horizontal louvres 102 with vertical blind 104.The air of discharging from heat exchanger 50 when horizontal louvres 102 is set is along the two sides constant current in the horizontal direction of horizontal louvres 102, the air of discharging from heat exchanger 50 when vertical blind 104 is set in the vertical direction constant current, is transformed into Laminar Flow thereby sinuous flow flowed along the two sides of vertical blind 104.And horizontal louvres 102 and vertical blind 104 rotatable settings make to open and close the space of discharging outdoor air or room air, when arouse device when out of service shutoff discharge the space of outdoor airs or room air from heat exchanger 50.The words that specify, the rotatable brace table 103 that is arranged on two sides of rotation projection 102a that horizontal louvres 102 two side ends are outstanding, interconnect by the extra attaching parts (not demonstrating among the figure) that rotation projection 102a vertically is set simultaneously, one of them rotation projection 102a in the horizontal louvres 102 connects stepping motor (step motor) (not demonstrating among the figure), makes and can rotate.Vertical blind 104 is similar with horizontal louvres 102, the rotatable brace table 105 that is arranged on top and bottom of rotation projection 104a that the front and back end is outstanding, interconnect by the extra attaching parts (not demonstrating among the figure) that are horizontally disposed with rotation projection 104a simultaneously, one of them the rotation projection 104a in the vertical blind 104 connects stepping motor (not demonstrating among the figure) to make and can rotate.
The following describes the course of action of air interchanger of the present invention.After device is aroused in startup, drawing fan 62 and scavenger fan 72 blow outdoor air or room air when driving, flow into the outdoor air of shell 32 inside or room air and carry out heat exchange action in the time of over-heat-exchanger 50, room air was discharged to the outside when outdoor air supplied to the indoor then.The process of 6 explanation supply chamber outer air along with the rotation of drawing fan 62, flows into shells 32 inside by outdoor air inlet hole 42 behind the outdoor air of the outside process outdoor air intake line with reference to the accompanying drawings.The outdoor air that flows into shell 32 inside is directed to the bottom of heat exchanger 50 1 sides by outdoor air stream guider 82, and by in the process of heat exchanger 50 with room air generation heat exchange action, discharge the process of back by each passage 92a of first grid 92 from the another side of heat exchanger 50 then and be transformed into Laminar Flow.Because first grid 92 is made of several passages 92a that has certain thickness W in the horizontal direction, outdoor air is transformed into Laminar Flow in passage 92a process of flowing, the flow resistance and the flow losses that flow and cause because of sinuous flow have been reduced, improved air-supply efficient, again because produce pressure differential in the front and back end of first, second grid 92, front air at first grid 92 flows uniformly thus, along with the front air the 1 flows uniformly, outdoor air also also flows uniformly in the front of heat exchanger 50, thereby improves heat exchanger effectiveness.Outdoor air by first grid 92 is discharged to shell 32 outsides through behind the drawing fan 62 at last.During discharge by supplying to the indoor through the outdoor air discharge line behind the outdoor air tap 44.
The process of room air is supplied with in 7 explanations with reference to the accompanying drawings, along with the rotation of scavenger fan 72, flows into shells 32 inside by room air inlet hole 44 behind the room air of the indoor process room air intake line.The room air that flows into shell 32 inside is directed to the bottom of heat exchanger 50 another sides by room air stream guider 84, and by in the process of heat exchanger 50 with outdoor air generation heat exchange action, discharge the process of back by each passage 94a of second grid 94 from a side of heat exchanger 50 then and be transformed into Laminar Flow.Because second grid 94 is made of several passages 94a that has certain thickness W in the horizontal direction, room air is transformed into Laminar Flow in passage 94a process of flowing.This moment, second grid 94 played the effect identical with first grid 92, had not only improved air-supply efficient and had also improved heat exchanger effectiveness.Room air by second grid 94 is discharged to shell 32 outsides through behind the scavenger fan 72 at last.During discharge by supplying to the indoor through the room air discharge line behind the room air tap 48.
Claims (8)
1, a kind of air interchanger is characterized in that, comprising: shell, air-supply arrangement, heat exchanger, mobile constant current device;
Be formed with a pair of inlet hole and a pair of tap of discharging outdoor air or room air of suction chamber outer air or room air on the described shell;
Described air-supply arrangement is separately positioned on above-mentioned a pair of tap inboard, blows outdoor air or room air;
Described heat exchanger portion in the enclosure crosses and is provided with, for carrying out heat exchange action between outdoor air and the room air;
Described mobile constant current device is arranged on the space from heat exchanger discharge outdoor air or room air of enclosure, and outdoor air or room air by heat exchanger are transformed into Laminar Flow.
2, air interchanger according to claim 1 is characterized in that:
The one side of above-mentioned shell forms outdoor air inlet hole and room air tap, opposing face forms outdoor air tap and room air inlet hole, air interchanger also comprises outdoor air stream guider and room air stream guider, when described outdoor air stream guider guides the outdoor air heat exchanger direction that flows into the outdoor air inlet hole room air through over-heat-exchanger is guided to room air tap direction; When described room air stream guider guides the room air heat exchanger direction that flows into the room air inlet hole outdoor air through over-heat-exchanger is guided to outdoor air tap direction.
3, air interchanger according to claim 2 is characterized in that:
Above-mentioned mobile constant current device is arranged on room air stream guider end or the outdoor air stream guider end near heat exchanger.
4, air interchanger according to claim 3 is characterized in that:
Above-mentioned mobile constant current device is parallel to the one side of shell.
5, air interchanger according to claim 4 is characterized in that:
Above-mentioned mobile constant current device forms grid for having certain thickness several passages.
6, air interchanger according to claim 4 is characterized in that:
Above-mentioned mobile constant current device several horizontal louvres for keeping at a certain distance away in vertical direction and being provided with.
7, air interchanger according to claim 4 is characterized in that:
Above-mentioned mobile constant current device several vertical blinds for keeping at a certain distance away in the horizontal direction and being provided with.
8, according to claim 6 or 7 described air interchangers, it is characterized in that:
The rotatable setting of above-mentioned several shutters makes it possible to open and close the space of discharging outdoor air or room air from heat exchanger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100195078A CN100434819C (en) | 2004-06-09 | 2004-06-09 | Ventilator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100195078A CN100434819C (en) | 2004-06-09 | 2004-06-09 | Ventilator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1707187A true CN1707187A (en) | 2005-12-14 |
| CN100434819C CN100434819C (en) | 2008-11-19 |
Family
ID=35581236
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100195078A Expired - Fee Related CN100434819C (en) | 2004-06-09 | 2004-06-09 | Ventilator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100434819C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111750479A (en) * | 2019-03-28 | 2020-10-09 | 苏州三星电子有限公司 | Heat exchanger and fresh air system |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2509022A1 (en) * | 1981-07-02 | 1983-01-07 | Hedstrom Stig | Ventilator with heat exchanger - has air flow regulation layer before exchanger stabilising currents |
| JPS58178189A (en) * | 1982-04-12 | 1983-10-19 | Matsushita Electric Ind Co Ltd | Total heat exchanging device |
| JP2601090B2 (en) * | 1992-01-16 | 1997-04-16 | 三菱電機株式会社 | Air conditioning ventilation equipment |
| CN2154981Y (en) * | 1993-04-21 | 1994-02-02 | 韩素霞 | Energy saving room temp. air regenerator |
| JPH09137984A (en) * | 1995-11-14 | 1997-05-27 | Mitsubishi Electric Corp | Ventilator |
| ES2273817T3 (en) * | 2001-03-30 | 2007-05-16 | Daikin Industries, Ltd. | FAN, AND METHOD TO MANUFACTURE IT. |
-
2004
- 2004-06-09 CN CNB2004100195078A patent/CN100434819C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111750479A (en) * | 2019-03-28 | 2020-10-09 | 苏州三星电子有限公司 | Heat exchanger and fresh air system |
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| Publication number | Publication date |
|---|---|
| CN100434819C (en) | 2008-11-19 |
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Granted publication date: 20081119 Termination date: 20110609 |