CN1410716A - Air conditioner - Google Patents
Air conditioner Download PDFInfo
- Publication number
- CN1410716A CN1410716A CN 02106620 CN02106620A CN1410716A CN 1410716 A CN1410716 A CN 1410716A CN 02106620 CN02106620 CN 02106620 CN 02106620 A CN02106620 A CN 02106620A CN 1410716 A CN1410716 A CN 1410716A
- Authority
- CN
- China
- Prior art keywords
- heat exchanger
- air conditioner
- runner
- centrifugal blower
- disposed
- 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
Images
Landscapes
- Air-Conditioning Room Units, And Self-Contained Units In General (AREA)
- Air Filters, Heat-Exchange Apparatuses, And Housings Of Air-Conditioning Units (AREA)
Abstract
There is providea a ceiling-embedded type or ceiling- hung type air conditionermethod for suppressing noise although a partition plate of a piping connection section is removed. A casing 11 of a chamber device 1 in the air conditioner is mainly provided with a centrifugal blower 17, a heat exchanger 27 and a piping connection section 26. A potion adjacent to the R side in the rotational direction of the section 26 out of an end in the longitudinal direction of the heat exchanger 27 is mounted on the casing 11 through a second heat exchanger mounting member 29. The member 29 has a straightening vane 29a extended from the upper end to the lower end of the heat exchanger 27 with a spacing provided on the side of the blower 17 to the side of the heat exchanger 27. A part of the vane 29a is disposed at an air flow path 30 sandwiched between the periphery of the blower 17 and the section 26.
Description
Technical field
The invention relates to air conditioner, particularly about ceiling type or ceiling air conditioner.
Background technology
Air conditioner is mainly by the off-premises station that is provided with compressor, heat exchanger etc. be provided with centrifugal blower and the indoor set of heat exchanger constitutes.Indoor set has various patterns at present, as: wall-hanging, ceiling type, ceiling mounting type etc.
Ceiling type or ceiling mounting type indoor set as shown in figure 10, mainly are provided with: the following hood 11 that is provided with suction inlet and a plurality of exhaust outlets; Be disposed at the centrifugal blower 17 of hood 11 inside; Be disposed at the heat exchanger 27 of centrifugal blower 17 peripheries.This heat exchanger 27 is provided with part tubing connection portion 26 at interval.Tubing connection portion 26 is for being provided with the space of connecting pipings, as being provided with: will be supplied to the heat exchanger 27 of indoor set 4 from the cold-producing medium that off-premises station (not shown) imports or will be used for the connecting pipings of the pipe arrangement, current divider, collector etc. of the cold-producing medium guiding off-premises station of heat exchange at indoor set 4.Usually, tubing connection portion 26 is separated out the runner 30 between the outer circumference portion that is sandwiched in tubing connection portion 26 and the centrifugal blower 17 relative with tubing connection portion 26 fully by dividing plate 59.
In this type of air conditioner, for reducing cost, people wish to remove the dividing plate of partition pipe jointing part.But if remove dividing plate, the noise of air conditioner will increase.
Problem of the present invention is that in ceiling type or ceiling air conditioner, even remove the dividing plate of tubing connection portion, noise can not increase yet.
Summary of the invention
The described air conditioner in the present invention the 1st aspect is ceiling type or ceiling air conditioner, described air conditioner by hood, centrifugal blower, heat exchanger, runner, and rectification element constitute.Centrifugal blower is disposed at hood inside.Heat exchanger is disposed at the periphery of centrifugal blower, and part has spacer portion.Runner is the space that is sandwiched between the outer circumference portion of spacer portion and the centrifugal blower relative with spacer portion.The member that rectification element makes a distinction for the 2nd runner with outer circumferential sides the 1st runner of part runner and centrifugal blower and spacer portion one side.
Be devices spaced apart portion and runner, if remove the dividing plate of present setting, then spacer portion and near, can produce the high-voltage section that pressure is higher than other runners of outer circumferential sides of centrifugal blower.This high-voltage section can be destroyed the rotational symmetry of the air that blows out from centrifugal blower, and therefore the service performance that makes centrifugal blower obtain stipulating, becomes the reason that produces noise.
To this, the present inventor considers, if spacer portion and near generation high-voltage section near the formation low voltage section, make the air flow low voltage section of high-voltage section, thereby, the pressure of the outer circumference portion of centrifugal blower is evenly distributed.
So, in this type of air conditioner, be provided with rectification element, be divided into the 1st runner of outer circumferential sides of centrifugal blower and the 2nd runner of spacer portion side to major general's part flow path area.Thus, near the high-voltage section of the 2nd runner, formed low voltage section, made high-voltage section air flow low voltage section.Like this,, the pressure of centrifugal blower outer circumference portion is evenly distributed, reduce noise even remove existing dividing plate.
The described air conditioner in the present invention the 2nd aspect ties up in the described air conditioner in the present invention the 1st aspect, and rectification element is a cowling panel.And the partial rectification plate is disposed at the direction of rotation downstream of the centrifugal blower of runner at least.
In this type of air conditioner,, use cowling panel as rectification element.Because the partial rectification plate is disposed at the downstream of direction of rotation of the centrifugal blower of runner at least,, reduce noise so can form low voltage section conscientiously in high-voltage section direction of rotation downstream.Here, because the partial rectification plate is configurable in the upstream side of centrifugal blower direction of rotation at least, so cowling panel can extend to the downstream from the direction of rotation upstream side of for example runner, also can extend to the position of configuration heat exchanger from the direction of rotation downstream of runner.
The described air conditioner in the present invention the 3rd aspect ties up in the described air conditioner in the present invention the 2nd aspect, and air conditioner has further disposed the heat exchanger installation component that heat exchanger can be installed in the hood.And cowling panel and heat exchanger installation component are integral.
In such air conditioner, because cowling panel and the heat exchanger installation component one that heat exchanger can be installed in the hood, so can reduce component count.
The described air conditioner in the present invention the 4th aspect is ceiling type or ceiling air conditioner, and described air conditioner is provided with: the connecting pipings of hood, centrifugal blower, heat exchanger, runner, heat exchanger.Centrifugal blower is disposed at the inside of hood.Heat exchanger arrangement is in the centrifugal blower periphery, and part is provided with spacer portion.Runner be folder with spacer portion and the centrifugal blower outer circumference portion relative with spacer portion between the space.Connecting pipings is provided with the convergent part by the resin binding.Convergent part is disposed near the runner of spacer portion, or the part convergent part projects to runner.
In such air conditioner, because the convergent part that resin will be formed by the connecting pipings binding that the refrigerant piping that connects heat exchanger etc. constitutes is disposed near the runner of spacer portion, or the part convergent part protrudes in runner, so spacer portion and near generation high-voltage section near the formation low voltage section, can make the air flow low voltage section of high-voltage section.Thus, make the pressure distribution of outer circumference portion of centrifugal blower even, reduced noise.And, because convergent part can utilize the part connecting pipings to form, so do not need to be used to form other members of low voltage section.
The simple declaration of accompanying drawing
Fig. 1 is the outward appearance oblique view of the indoor set of the invention process form air conditioner; Fig. 2 is the upward view of indoor set inside of the air conditioner of the 1st example; Fig. 3 is the side sectional view of the indoor set inside of the 1st example air conditioner; Fig. 4 is near the amplification side sectional view of heat exchanger of Fig. 3; Fig. 5 is near the amplification inclinating view of tubing connection portion of Fig. 2; Fig. 6 is Fig. 5 A-A cutaway view; Fig. 7 is the upward view of the 2nd example indoor machine of air conditioner machine portion; Fig. 8 is the inner upward view of the 3rd example indoor machine of air conditioner; Fig. 9 is near the amplification inclinating view of tubing connection portion of Fig. 8; Figure 10 is the upward view of existing indoor machine of air conditioner inside.
Among the figure, 1,2,3,4 is indoor set (air conditioner); 11 is hood; 17 is centrifugal blower; 26 is tubing connection portion (spacer portion); 27 is heat exchanger; 29,39 is the 2nd heat exchanger installation component; 29a, 39a are rectification board (rectification element, cowling panel); 30 is runner; 30a is the 1st runner; 30b is the 2nd runner; 41 is connecting pipings; 42 is convergent part; 59 is dividing plate.
The specific embodiment
(first example)
Below, first example of the present invention once is described with reference to the accompanying drawings.
(1) formation of air conditioner
Fig. 1 is the outward appearance oblique view (ceiling omission) of the indoor set 1 of the air conditioner of the present invention's first example.Indoor set 1 is a ceiling type, is provided with the hood 11 that is embedded in the ceiling and the decoration panel 12 that is disposed at below the hood.
Hood 11 is the inner parts that can hold indoor set 1 component parts.In this example, hood 11 profiles are nearly rectangular shape.
The suction inlet 20 of decoration panel 12 central authorities below being located at constitutes with 4 exhaust outlets 21 being located at suction inlet 20 outer circumferential sides.
Then, utilize Fig. 2 and Fig. 3 that the inside of one lower machine cover 11 is described.Here, Fig. 2 is the upward view of indoor set 1 inside, and Fig. 3 is the side sectional view of indoor set 1.Hood 11 mainly is provided with: centrifugal blower 17; Heat exchanger 27; Be disposed at the drain pan 25 of heat exchanger 27 bottoms; Be disposed at the horn mouth 18 of 17 of suction inlet 20 and centrifugal blowers.
The machine of heat exchanger 27 for the air that blows out from centrifugal blower 17 is carried out heat exchange, heat exchanger 27 is disposed at the periphery of centrifugal blower 17.In this example, heat exchanger 27 is bent processing, and the plate fin heat exchanger panel that intersects is relative with 3 bight 11a of hood 11.Heat exchanger 27 with the empty standard width of a room in an old-style house in vertical both ends every state, be disposed at 1 corresponding position with 4 bight 11a of hood 11, form tubing connection portion 26 (spacer portion).Tubing connection portion 26 is the space of configuration heat exchanger 27 with the connecting pipings of off-premises station (not shown).
As shown in Figure 4, in the longitudinal end of heat exchanger 27, except that the part of the direction of rotation R side that is adjacent to tubing connection portion 26,, be hung on the end face of hood 11 by a plurality of the 1st heat exchanger installation components 28.The 1st heat exchanger installation component 28 is for being bent the tabular component that is processed into the U word shape, and its upper end is installed on the end face of hood 11 with hold-down screw etc., and the lower end of heat exchanger 27 is accepted in its lower end.The side surface part 28a of the 1st heat exchanger installation component 28 is provided with peristome 28b, in order to avoid stop up the thermal conductive surface of heat exchanger 27.
In the longitudinal end of heat exchanger 27, be adjacent to tubing connection portion 26 direction of rotation R side parts, as Fig. 5 and shown in Figure 6,, be hung on the end face of hood 11 by the 2nd heat exchanger installation component 29.This point is identical with the 1st heat exchanger 28.On the other hand, in the side of the 2nd heat exchanger installation component 29, be provided with rectification board 29a.Rectification board 29a is different with the side surface part 28a of the 1st heat exchanger installation component 28, and in centrifugal blower 17 sides at certain intervals, extend to the lower end from the upper end of heat exchanger 27 side of heat exchanger 27 relatively.Again, rectification board 29a extends towards reverse rotational direction R side, and wherein a part is disposed in the runner 30 of 26 of the outer circumference portion that is sandwiched in centrifugal blower 17 and tubing connection portion.The part of the direction of rotation R side of runner 30 by the part of the runner 30 that is disposed at cowling panel 29a, is divided into the 1st runner 30a of centrifugal blower 17 sides and the 2nd runner 30b of tubing connection portion 26 sides.
(2) running of air conditioner
Utilize Fig. 3 that the running of indoor set 1 once is described.
Rotary and centrifugal type pressure fan 17 then shown in arrow W among Fig. 3, is drawn to room air from suction inlet 20 inside of indoor set 1.Inhaled air is sent to outer circumferential side from centrifugal blower 17 shown in arrow X among Fig. 3.The air that blows to outer circumferential side from centrifugal blower 17 is shown in arrow Y, and the heat exchanger 27 of the outer circumferential side by being disposed at centrifugal blower 17 carries out heat exchange, and the air outlet 21 of the peripheral part below being located at hood 11 blows to indoor.
Then, utilize Fig. 5 that near the air mobility status the tubing connection portion 26 in indoor set 1 running once is described.
Near tubing connection portion 26, air blows to outer circumferential side from centrifugal blower 17, flows along direction of rotation R.The air that flows into runner 30 tubing connection portion 26 and near, form the high-voltage section 31 that pressure is higher than other runners of outer circumferential side of centrifugal blower 17.Near the flow air runner 30 of runner 30 and tubing connection portion 26 under the rectification board 29a of the direction of rotation R side that is disposed at runner 30 effect, flows to the 1st runner 30a side and the 2nd runner 30b side respectively.At this moment, form the low voltage section 32 that pressure is lower than high-voltage section 31 in the 2nd runner 30b side.And the air-flow that flows to the 1st runner 30a side and the 2nd runner 30b side respectively collaborates once again in the direction of rotation R of cowling panel 29a side.
(3) feature of air conditioner
The air conditioner of this example has following feature:
1. reduced the noise that cowling panel 29a produces
The indoor set 1 of this example has removed in the existing indoor set 4 to separate the dividing plate 59 (with reference to Figure 10) that tubing connection portion 26 and runner 30 are provided with comprehensively.Therefore, tubing connection portion 26 and near, just produced the high-voltage section 31 of other runners that pressure is higher than the outer circumferential side of centrifugal blower 17.High-voltage section 31 has been destroyed the rotational symmetry of the air-flow that blows out from centrifugal blower 17, and the service performance that makes centrifugal blower 17 obtain stipulating causes producing noise.
And in the indoor set 1 of this example, be provided with rectification board 29a, the 2nd runner 30b of outer circumferential side the 1st runner 30a that divides into centrifugal blower 17 to major general's part runner 30 and 26 sides during pipe arrangement is connected.Like this, near the formation low voltage section 32 high-voltage section 31 direction of rotation R sides of the 2nd runner 30b makes the air flow low voltage section 32 of high-voltage section 31.Thus, the pressure of the outer circumferential side of centrifugal blower 17 is evenly distributed, reduced noise.
And the indoor set 1 of this example is compared with existing indoor set 4, has also greatly reduced noise.
2. by making rectification board 29a and the 2nd heat exchanger installation component 29 integrated, reduced component count.
In this example indoor set 1, rectification board 29a and the 2nd heat exchanger member 29 are one, thereby have reduced component count.
(the 2nd example)
Below, with reference to description of drawings the 2nd example of the present invention once.
The structure of the indoor set 2 of the 2nd example, as shown in Figure 7, except that the 2nd heat exchanger installation component 29 with the indoor set 1 of the 1st example becomes the 2nd heat exchanger installation component 39, other formations with the 1st example are identical.The following describes the difference between two examples.
The 2nd heat exchanger installation component 39 is provided with from the rectification board 39a of the direction of rotation upstream side side extension downstream of runner 30.At this moment, also can obtain the effect of the reduction noise identical with the 1st example indoor set 1.
(the 3rd example)
The 3rd example of the present invention once is described with reference to the accompanying drawings.
The formation of the indoor set 3 of the 3rd example such as Fig. 8 and shown in Figure 9, rectification board 29a is not installed on the 2nd heat exchanger installation component 29 in the 1st example indoor set 1, but bundle the part connecting pipings 41 that the convergent part 42 that forms has replaced being disposed at tubing connection portion 26 with resin, in addition, the formation with the 1st example is identical.The difference of the two once only is described below.
Connecting pipings 41 is disposed at the pipe arrangement group of heat exchanger 27 with the off-premises station (not shown) of tubing connection portion 26 for connection.Convergent part 42 is in this example, by forming convergent part 42 with tying into a branch of and reel with resin in the connecting pipings 41, to the pipe arrangement of the capillary of heat exchanger 27 the supply system cryogens and current divider etc.The setting of this convergent part 42 makes its part outstanding to runner 30.
By above-mentioned formation, simultaneously form low voltage section 52 in tubing connection portion 26 sides of convergent part 42.That is to say, convergent part 42 have with the 1st example in the identical effect of rectification board 29a.Like this, just, can make the air flow low voltage section 52 of the high-voltage section 51 that the reverse rotational direction R side of convergent part 42 forms.And, because convergent part 42 is to utilize the part connecting pipings to form, so do not need other members to be set separately for forming low voltage section 52.
In this example, part convergent part 42 projects to runner 30, but is not to project to runner 30, near the also configurable runner 30 in tubing connection portion 26.
(other examples)
More than, with reference to accompanying drawing example of the present invention is illustrated, but concrete formation of the present invention is not limited in this example, but can in the scope that does not break away from the invention aim, has some change.
As: in above-mentioned example, the present invention is applicable to ceiling air conditioner, equally also is applicable to ceiling air conditioner.
And in the 1st and the 2nd example, rectification board and the 2nd heat exchanger installation component are integral, but also can adopt other formations.This moment also can be same with the 1st and the 2nd example, reduces noise.
As mentioned above, utilize the present invention to have following effect.
Aspect the present invention the 1st, in the described invention, be provided with rectification element, at least part of runner divide into from The 1st runner of the outer circumferential side of core type pressure fan and the 2nd runner of spacer portion side are so even removed existing Dividing plate, the pressure of the outer perimembranous of centrifugal pressure fan is evenly distributed, reduce noise.
Aspect the present invention the 2nd, in the described invention, as rectification element, used cowling panel, at least section So the centrifugal pressure fan direction of rotation downstream side of dividing cowling panel to be disposed at runner is can be in high-voltage section rotation side Downstream side form low voltage section in abutting connection with the position, reduced noise.
Aspect the present invention the 3rd in the described invention, cowling panel and the heat exchange that heat exchanger is installed in the hood The device installation component is integral, so can reduce component count.
Aspect the present invention the 4th in the described invention, join that pipe ties up owing to will part connect with resin Convergent part is disposed near the runner of spacer portion, and the part convergent part projects to runner, so, can make The outer perimembranous pressure of centrifugal pressure fan evenly distributes, and reduces noise. And, because convergent part has utilized section Divide to connect and join pipe, so do not need not form low voltage section other members are not set separately.
Claims (4)
1. air conditioner, described air conditioner is ceiling type or ceiling air conditioner (1,2), it is characterized in that described air conditioner is provided with:
Hood (11);
Be disposed at the inner centrifugal blower (17) of hood (11);
Be disposed at the periphery of centrifugal blower (17) and the heat exchanger (27) that part is provided with spacer portion (26);
Be sandwiched in the runner (30) between the peripheral part of spacer portion (26) and the centrifugal blower (17) relative with spacer portion (26);
Divide into the rectification element (29a, 39a) of the 2nd runner (30b) of the 1st runner (30a) and spacer portion (26) side of the outer circumferential side of centrifugal blower (17) to major general's part runner (30).
2. air conditioner as claimed in claim 1 (1,2), it is characterized in that, described rectification element (29a, 39a) is cowling panel (29a, 39a), and partial rectification plate (29a, 39a) is disposed at the direction of rotation downstream of the centrifugal blower (17) of above-mentioned runner (30) at least.
3. air conditioner as claimed in claim 2 (1,2) is characterized in that, above-mentioned air conditioner (1,2) is provided with pack into heat exchanger installation component (29) in the hood (11) of heat exchanger (27), and cowling panel (29a) forms one with heat exchanger installation component (29).
4. air conditioner, described air conditioner is ceiling type or ceiling air conditioner (3), it is characterized in that described air conditioner is provided with:
Hood (11);
Be disposed at the inner centrifugal blower (17) of hood (11);
Be disposed at the periphery of centrifugal blower (17) and the heat exchanger (27) that part is provided with spacer portion (26);
Be sandwiched in the runner (30) between the peripheral part of spacer portion (26) and the centrifugal blower (17) relative with spacer portion (26); And
Connecting pipings (41) with heat exchanger (27) of resin binding convergent part (42),
Described convergent part (42) be disposed at above-mentioned spacer portion (26) described runner (30) near, or the setting of the described convergent part of part (42) makes it project to above-mentioned runner (30).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP291269/2001 | 2001-09-25 | ||
| JP2001291269A JP3581926B2 (en) | 2001-09-25 | 2001-09-25 | Air conditioner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1410716A true CN1410716A (en) | 2003-04-16 |
| CN1177171C CN1177171C (en) | 2004-11-24 |
Family
ID=19113443
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN02206358U Expired - Fee Related CN2532404Y (en) | 2001-09-25 | 2002-02-28 | Air conditioner |
| CNB021066205A Expired - Lifetime CN1177171C (en) | 2001-09-25 | 2002-02-28 | Air conditioner |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN02206358U Expired - Fee Related CN2532404Y (en) | 2001-09-25 | 2002-02-28 | Air conditioner |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP3581926B2 (en) |
| CN (2) | CN2532404Y (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100455938C (en) * | 2003-12-23 | 2009-01-28 | 乐金电子(天津)电器有限公司 | Air deflector for commercial air-conditioners |
| JP2012220163A (en) * | 2011-04-13 | 2012-11-12 | Mitsubishi Heavy Ind Ltd | Air conditioner |
| JP2014228223A (en) * | 2013-05-24 | 2014-12-08 | 日立アプライアンス株式会社 | Air conditioner |
| KR101900484B1 (en) * | 2015-01-23 | 2018-09-20 | 삼성전자주식회사 | Air conditioner |
| JP2017053588A (en) | 2015-09-11 | 2017-03-16 | ジョンソンコントロールズ ヒタチ エア コンディショニング テクノロジー（ホンコン）リミテッド | Air conditioner and its indoor unit |
| JP6673318B2 (en) * | 2017-12-05 | 2020-03-25 | ダイキン工業株式会社 | air conditioner |
| JPWO2022209593A1 (en) | 2021-03-30 | 2022-10-06 |
-
2001
- 2001-09-25 JP JP2001291269A patent/JP3581926B2/en not_active Expired - Lifetime
-
2002
- 2002-02-28 CN CN02206358U patent/CN2532404Y/en not_active Expired - Fee Related
- 2002-02-28 CN CNB021066205A patent/CN1177171C/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| CN2532404Y (en) | 2003-01-22 |
| JP3581926B2 (en) | 2004-10-27 |
| JP2003097820A (en) | 2003-04-03 |
| CN1177171C (en) | 2004-11-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1143989C (en) | Indoor machine for built-in ceiling type | |
| CN1210529C (en) | Turbofan of air conditioner built in ceiling | |
| CN1149117A (en) | Outdoor unit of air conditioner | |
| CN1177171C (en) | Air conditioner | |
| CN2532406Y (en) | Air conditioner | |
| CN1231716C (en) | Air conditioning system | |
| CN1969152A (en) | Heat exchange type ventilator | |
| CN103765149B (en) | Finned heat exchanger | |
| CN1379213A (en) | Air conditioner | |
| CN1811292A (en) | Air conditioner | |
| CN1922443A (en) | Simultaneous supply/discharge type ventilator | |
| CN1782601A (en) | Indoor unit of air conditioner | |
| CN1932395A (en) | Ventilating unit for air-conditioner | |
| CN1823244A (en) | Air conditioner | |
| CN1233966C (en) | Heat exchanger assembling structure for split air conditioner | |
| CN2684069Y (en) | Ventilator | |
| CN1231711C (en) | Outdoor air guiding device for wall embedded vertical air conditioner | |
| CN218030401U (en) | Engine assembly | |
| CN210014470U (en) | Through-wall air conditioner | |
| CN1712740A (en) | Casing seat of axial-flow radiating fan | |
| CN2442171Y (en) | Air conditioner | |
| CN1991267A (en) | Duct type air conditioner | |
| KR100749055B1 (en) | A Duct Type Air Conditioner | |
| JP2004053079A (en) | Air cleaner | |
| CN1542333A (en) | Indoor air discharge portion for conditioner |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20041124 |
|
| CX01 | Expiry of patent term |