CN110500570A - A kind of steam generator and its steam cleaner with the steam generator - Google Patents
A kind of steam generator and its steam cleaner with the steam generator Download PDFInfo
- Publication number
- CN110500570A CN110500570A CN201910780240.0A CN201910780240A CN110500570A CN 110500570 A CN110500570 A CN 110500570A CN 201910780240 A CN201910780240 A CN 201910780240A CN 110500570 A CN110500570 A CN 110500570A
- Authority
- CN
- China
- Prior art keywords
- heating ring
- vaporization chamber
- ring
- wall
- steam generator
- 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.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B1/00—Methods of steam generation characterised by form of heating method
- F22B1/28—Methods of steam generation characterised by form of heating method in boilers heated electrically
- F22B1/282—Methods of steam generation characterised by form of heating method in boilers heated electrically with water or steam circulating in tubes or ducts
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B35/00—Control systems for steam boilers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B37/00—Component parts or details of steam boilers
- F22B37/02—Component parts or details of steam boilers applicable to more than one kind or type of steam boiler
- F22B37/34—Adaptations of boilers for promoting water circulation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B37/00—Component parts or details of steam boilers
- F22B37/02—Component parts or details of steam boilers applicable to more than one kind or type of steam boiler
- F22B37/42—Applications, arrangements, or dispositions of alarm or automatic safety devices
- F22B37/47—Applications, arrangements, or dispositions of alarm or automatic safety devices responsive to abnormal temperature, e.g. actuated by fusible plugs
Abstract
The invention discloses a kind of steam generator and its with the steam cleaner of the steam generator, including boiler body, boiler jacket, boiler body includes connecting plate, heating ring, heats and is formed with the first vaporization chamber between ring inner wall and boiler jacket bottom；The second vaporization chamber is formed between heating ring outer wall and boiler jacket, escape pipe, water inlet pipe are provided on connecting plate；Heating ring outer wall is provided with multi-ring annular slot, and circulation groove is offered on every layer of annular groove, and the circulation groove of adjacent annular slot is provided with the opposite sides of heating ring；Heating ring end offers intercommunicating pore.The present invention has the following advantages and effects: by the secondary use to heating ring outside and inner space, improve the utilization rate to electric heating tubular heat；Circulation path by extension to liquid water in the first vaporization chamber and the second vaporization chamber effectively increases the vaporization efficency of generator, and then realize and completely vaporize to improve contact area and the time of contact of liquid water and equipment.
Description
Technical field
The present invention relates to the technical field of steam appliance, in particular to a kind of steam generator and its have the steam
The steam cleaner of generator.
Background technique
Steam boiler tradition for steam appliance includes two types: one kind is immediate heating type steam boiler, such
Steam boiler usually has lesser vaporizing chamber, and when in use, the watering of steam boiler is divided into shallow bid water flow and gradually enters
In to boiler and Transient transformation is at steam；Another kind is preheating type steam boiler, and such steam boiler has biggish vaporization
Room needs to be passed through enough water supply into vaporizing chamber in advance when in use, and then heating a period of time is until in vaporizing chamber
Enough steam is generated to begin to use again.
In existing steam generator, all there was only single vaporization chamber mostly, some vaporization chambers are through type vaporization chambers, also
Some is the bending-like vaporization chamber or labyrinth type vaporization chamber formed by partition.For through type vaporization chamber, water is quick
Lower part is flowed to from the top of vaporization chamber, which is difficult to realize the abundant vaporization of water, even if improving the heating of steam generator
Power cannot guarantee that water energy absolutely vaporizes, and improves heating power and will cause energy waste and security risk.For
For steam generator equipped with bendable shape vaporization chamber or labyrinth type vaporization chamber, fluid still only has an access, fast
Speed is after vaporization chamber, it is also difficult to which realization completely vaporizes.
Summary of the invention
The object of the present invention is to provide a kind of steam generators, have the effect of liquid water secondary vaporizing.
Above-mentioned technical purpose of the invention has the technical scheme that a kind of steam generator, including
Boiler body, the boiler jacket being set in outside the boiler body, the boiler body include connecting with the boiler jacket
Connecting plate in the boiler jacket and is embedded with the heating ring of electrothermal tube, the heating ring outer wall and the boiler jacket
Between form the second vaporization chamber, be formed with the first vaporization chamber between the heating ring inner wall and the boiler jacket bottom；
The water inlet for being provided with the escape pipe being connected to second vaporization chamber on the connecting plate, being connected to first vaporization chamber
Pipe；
The heating ring outer wall and the boiler jacket inner wall abut against and are provided with the annular groove of multi-turn, and the heating ring is upper
The circulation groove of circulation groove connection adjacent annular slot is offered, the circulation groove of the adjacent annular groove is provided with the phase of the heating ring
To two sides；
The heating ring end is connected on the boiler jacket bottom wall and offers the connection being connected to first vaporization chamber
Hole.
By using above-mentioned technical proposal, liquid water by water inlet pipe enter heating inside pipe wall the first vaporization chamber in into
Enter preheating, while vaporizing a part, some vapor and the liquid water being preheated are entered outside heating ring by intercommunicating pore
In second vaporization chamber.Second vaporization chamber is divided into multiple independent chambers by the multi-ring annular slot of heating ring outer wall setting, simultaneously
It is connected between each annular groove by circulation groove.Since adjacent circulation groove is separately positioned on the two sides of heating ring, thus work as liquid
When state water enters the second vaporization chamber, liquid water passes through the separate chamber of first layer, then flows through to after the circulation groove of the other side
Enter next chamber, circulation groove in the other side, which converges, after liquid water is separated into two strands enters next chamber.Liquid
Water reciprocates through annular groove and circulation groove, extends liquid water in the circulation path of the second vaporization chamber, and then increases heating ring pair
The heating vaporization of liquid water is realized the utilization to the thermal energy of electrothermal tube by two chambers, is realized inside and outside heating tube
Secondary vaporizing, improve the vaporization effect of liquid water.
The further setting of the present invention are as follows: water conservancy diversion screw rod, the water conservancy diversion screw rod outer wall are plugged on the heating ring inner wall
The deflector side wall of setting is connected to the heating ring inner wall, and first vaporization chamber is spiral chamber.
By using above-mentioned technical proposal, a water conservancy diversion screw rod is plugged in the first vaporization chamber, and on the outside of water conservancy diversion screw rod
Wall is abutted against with heating ring inner wall, and then the first vaporization chamber is made to form a unidirectional spiral chamber.The water conservancy diversion screw rod is into one
Step extend liquid water from water inlet pipe enter in the first vaporization chamber after flow path and heat ring contact area, into
And the vaporization efficency of entire generator is improved, improve the vaporization efficency of the first vaporization chamber and the heating effect to liquid water.
The further setting of the present invention are as follows: the heating ring end offers the diversion trench being distributed in snail shape line；It is described to lead
Chute front end is connected to the intercommunicating pore, and the diversion trench is connected to first vaporization chamber.
By using above-mentioned technical proposal, the diversion trench for heating the setting of ring end can be connected to the first vaporization chamber and the second vapour
Change chamber.It is distributed, can be altered course to liquid water by the snail shape line of diversion trench itself simultaneously, be convenient for liquid water and steam energy
It is enough fed directly in the chamber of the second vaporization chamber, so that whole flow direction is more smooth quick.
The further setting of the present invention are as follows: the water conservancy diversion screw front end is plugged on the location hole that the connecting plate opens up,
The water conservancy diversion screw end is provided with convex block, and the heating ring end is provided with for institute's clamping groove.
By using above-mentioned technical proposal, water conservancy diversion screw front end is plugged on location hole, and the convex block of end is connected to clamping
On slot, thus the installation positioning convenient for water conservancy diversion screw rod in the first vaporization chamber, and can ensure the outlet of water conservancy diversion screw rod and lead
It the outlet of chute can be opposite always；And be arranged by relative positioning, reduce the installation difficulty of water conservancy diversion screw rod.
The further setting of the present invention are as follows: sealing ring is provided on the connecting plate, the boiler jacket upper end is provided with
It is closely attached on the flange ring of the connecting plate and the sealing ring, is bolted between the connecting plate and the flange ring.
By using above-mentioned technical proposal, the flange ring progress of connecting plate and boiler jacket is relatively fixed, to be formed with realizing
Second vaporization chamber and the first vaporization chamber.The bolt being arranged between connecting plate and flange ring can ensure leakproofness between the two,
Ensure generator stable operation.
The further setting of the present invention are as follows: be provided with heat shield on the outside of the boiler body and the boiler jacket.
By using above-mentioned technical proposal, on the one hand the setting of heat shield can be avoided the escape of the heat of electrothermal tube, into
On the other hand row insulation also avoids the heat of generator from influencing the use of remaining equipment.
The further setting of the present invention are as follows: the heat shield includes the opposite heat-insulated upper casing and heat-insulated lower casing being plugged and fixed,
It is provided with the limiting slot for supplying the connecting plate side wall to be embedded between the heat-insulated upper casing and the heat-insulated lower casing and supplies the boiler
The locating slot of shell positioning.
By using above-mentioned technical proposal, heat shield is plugged and fixed by heat-insulated upper casing and heat-insulated lower casing.During installation
Limiting slot need to be only set on connecting plate and ring flange, boiler jacket is provide with by the locating slot of rear end.
The further setting of the present invention are as follows: be additionally provided with temperature controller and thermal protector on the connecting plate.
By using above-mentioned technical proposal, temperature controller carries out sampling monitoring to environment temperature, when environment temperature is higher than control
Circuit start is controlled when setting value, when reaching overload alarm temperature spot, is offered, and the secondary guarantor of thermal protector is on the other hand passed through
Shield, when deformation occurs by high temperature for thermal protector, integrated circuit is disconnected, and is avoided generator from damaging, is improved the safety used.
The object of the present invention is to provide a kind of good steam cleaners of vaporization effect.
Above-mentioned technical purpose of the invention has the technical scheme that a kind of steam cleaner, including
Above-mentioned steam generator.
In conclusion the invention has the following advantages: by heating ring on the outside of and inner space secondary use,
Improve the utilization rate to electric heating tubular heat；By extend to liquid water the first vaporization chamber and the second vaporization chamber circulation path,
To improve contact area and the time of contact of liquid water and equipment, the vaporization efficency of generator is effectively increased, and then realized
Full vaporization.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the boiler body and boiler jacket in embodiment one；
Fig. 2 is the structural schematic diagram of the boiler jacket and heat shield in embodiment one；
Fig. 3 is the cross section view of the steam generator in embodiment one；
Fig. 4 is the structural schematic diagram one of the boiler body in embodiment one；
Fig. 5 is the structural schematic diagram two of the boiler body in embodiment one, to embody the structure of water conservancy diversion screw rod；
Fig. 6 is the structural schematic diagram three of the boiler body in embodiment one, to protrude location hole；
Fig. 7 is the schematic diagram of the steam descaling machine in embodiment two.
In figure: 1, boiler body；2, boiler jacket；3, connecting plate；4, ring is heated；5, electrothermal tube；6, the second vaporization chamber；7,
First vaporization chamber；8, escape pipe；9, water inlet pipe；10, annular groove；11, circulation groove；12, intercommunicating pore；13, water conservancy diversion screw rod；14, it leads
Flowing plate；15, diversion trench；16, location hole；17, convex block；18, clamping groove；19, sealing ring；20, flange ring；21, bolt；22, every
Heat cover；23, heat-insulated upper casing；24, heat-insulated lower casing；25, limiting slot；26, locating slot；27, ring rib；28, annular groove；29,
Temperature controller；30, thermal protector.
Specific embodiment
Below in conjunction with attached drawing, invention is further described in detail.
Embodiment one, a kind of steam generator, referring to Fig.1, including boiler body 1 and boiler jacket 2, boiler body 1 wrap
One piece of connecting plate 3 is included, and is integrally disposed upon the heating ring 4 of 3 lower end of connecting plate, heating tube is embedded on heating ring 4, while two
The connector that extends out is held to extend out from the side of connecting plate 3.Boiler jacket 2 is whole to be set on heating ring 4, while upper end
It is provided with flange ring 20, flange ring 20 and connecting plate 3 to be consolidated by bolt 21, be provided between flange ring 20 and connecting plate 3
One circle sealing ring 19 ensures leakproofness between the two, and steam is avoided to escape from junction between the two.
Referring to Fig. 2, a heat shield 22 is arranged on boiler body 1 and boiler jacket 2, for avoiding boiler body 1
With the heat distribution loss of boiler jacket 2, and avoid influence other component use.Heat shield 22 includes heat-insulated upper casing 23 and heat-insulated
Lower casing 24, structure is almost symmetrical arranged, the difference is that offering what confession extended out from connecting plate 3 on heat-insulated upper casing 23
The groove that electrothermal tube 5 is placed.It is provided with ring rib 27 on heat-insulated upper casing 23, heat-insulated lower casing 24 is provided with annular groove 28, and two
When person is close in boiler body 1 and boiler jacket 2, mutual interference grafting, which is realized, to be fixed.Upper end is formed for 3 grafting of connecting plate simultaneously
The limiting slot 25 of positioning, lower end form the locating slot 26 consistent with 2 profile of boiler jacket.Heat shield 22 is close to connecting plate 3
One end opens up empty slot so as to the installation of other components on connecting plate 3.
Referring to Fig. 3, Fig. 5, Fig. 6, a water conservancy diversion screw rod 13, leading on water conservancy diversion screw rod 13 are had additional in the first vaporization chamber 7
14 outer wall of flowing plate is connected on heating 4 inner wall of ring, and the two realizes interference grafting, and then the first vaporization chamber 7 is formed as helical cavity
Room.The column on 13 top of water conservancy diversion screw rod is plugged on the location hole 16 opened up on connecting plate 3, and end is convex towards side projection one
Block 17, the clamping groove 18 opened up to be connected to heating 4 bottom end of ring, water conservancy diversion screw rod 13 has stable in the first vaporization chamber 7
Positional relationship.Heating 4 bottom end end face of ring is also configured to the diversion trench 15 of snail shape line distribution, 15 front end inlet of diversion trench and heating ring
The intercommunicating pore 12 of 4 bottoms setting is identical, and end import is arranged in 7 exit of the first vaporization chamber, it is ensured that can be from the first vaporization chamber 7
The liquid water and steam of interior outflow can enter directly into the diversion trench, the problems such as colliding when liquid water being avoided to alter course.
After steam and the liquid water not being vaporized circulate in the first vaporization chamber 7 after vaporization, the second vaporization of heating 4 outer wall of ring is entered
In chamber 8, liquid water is vaporized again by the second vaporization chamber 6.
Referring to Fig. 3 and Fig. 4,4 outside of heating ring in boiler body 1 and the of relative closure is formed between boiler jacket 2
Two vaporization chambers 6 heat the first vaporization chamber 7 that relative closure is similarly formed between 2 bottom wall of inside and boiler jacket of ring 4.Connection
Plate 3 is provided with escape pipe 8 above the second vaporization chamber 6, and water inlet pipe 9, escape pipe 8 and water inlet are arranged above the first vaporization chamber 7
9 structure of pipe can be identical.An intercommunicating pore 12 is offered in heating 4 end of ring, realizes the second vaporization chamber 6 and the first vaporization chamber 7
Between connection.The heating of ring 4 is heated by 5 pairs of electrothermal tube, heating ring 4 adds the second vaporization chamber 6 and the first vaporization chamber 7 simultaneously
Heat, liquid water enter the second vaporization chamber 6 by escape pipe 8 and are vaporized, then the steam after vaporization and the liquid not being vaporized
State water enters the first vaporization chamber 7 by intercommunicating pore 12 and is vaporized again, and the steam after being finally vaporized is flowed from water inlet pipe 9
Out to use it for anything else.
Referring to Figure 1 and Figure 3, heating 4 outer wall of ring is connected on 2 inner wall of boiler jacket, and opposite realize is tightly connected, while
Heating 4 outer wall of ring offers 8-9 ring annular groove 10, opens up a circulation groove 11, adjacent ring between every two annular grooves 10
The circulation groove 11 that 10 lower end of shape slot opens up, which opposes, is arranged in the two sides of heating ring 4, and the two can be to heat 4 axial line of ring
Reference symmetry setting.By the setting of annular groove 10 and circulation groove 11, so that when the liquid water entered is flowed into annular groove 10
When, the entire annular groove 10 that needs to circulate being forced can be only achieved the circulation groove 11 of the other end, then can just enter next ring
Continue heating vaporization in shape slot 10；When liquid water passes through recirculation hole, the annular groove that two bursts of water flows enter the left and right sides can be shunted
10, compared with the prior art, the liquid water of same volume, this programme can reduce volume when circulation, to increase and heat ring 4
Contact area and duration, and then increase heating ring 4 vaporization efficency.
Fig. 1 is returned to, a temperature controller 29 and a thermal protector 30 are further fixed on connecting plate 3.Temperature controller 29, refers to
According to the temperature change of working environment, physical deformation occurs in switch internal, to generate certain special effects, generate conducting or
A series of Automatic Control Components of person's disconnection movement；Thermal protector 30 be the different alloy combination of two panels together, pass through electric current
After can generate heat, since two different alloy thermal expansion coefficients are different, alloy certainly will be bent to a direction, and contact be left, electricity
Road disconnects, and by the high temperature protection of the two, entire steam generator is avoided to lead to equipment damage due to 5 temperature of electrothermal tube or make
The generation of the problem of at personal injury.
Embodiment two, a kind of steam cleaner, referring to Fig. 7, the steam generator including embodiment one.
Specific embodiment is only explanation of the invention, is not limitation of the present invention, those skilled in the art
It can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but as long as in this hair
All by the protection of Patent Law in bright scope of the claims.
Claims (9)
1. a kind of steam generator including boiler body (1), is set in the boiler jacket (2) of the boiler body (1) outside,
Be characterized in that: the boiler body (1) includes the connecting plate (3) connecting with the boiler jacket (2), is located at the boiler jacket
(2) heating ring (4) that is interior and being embedded with electrothermal tube (5), between heating ring (4) inner wall and the boiler jacket (2) bottom
It is formed with the first vaporization chamber (7), forms the second vaporization chamber (6) between heating ring (4) outer wall and the boiler jacket (2)；
The escape pipe (8) being connected to second vaporization chamber (6) and first vaporization chamber are provided on the connecting plate (3)
(7) water inlet pipe (9) being connected to；
Heating ring (4) outer wall and the boiler jacket (2) inner wall abut against and are provided with the annular groove (10) of multi-turn, described
Heating ring (4) is in the upper circulation groove (11) for offering circulation groove (11) connection adjacent annular slot (10), the adjacent annular groove
(10) circulation groove (11) is provided with the opposite sides of heating ring (4)；
Heating ring (4) end is connected on the boiler jacket (2) bottom wall and offers with first vaporization chamber (7) even
Logical intercommunicating pore (12).
2. a kind of steam generator according to claim 1, it is characterised in that: be plugged on heating ring (4) inner wall
Deflector (14) side wall of water conservancy diversion screw rod (13), water conservancy diversion screw rod (13) the outer wall setting is connected to heating ring (4) inner wall,
First vaporization chamber (7) is spiral chamber.
3. a kind of steam generator according to claim 2, it is characterised in that: heating ring (4) end, which offers, is in
The diversion trench (15) of snail shape line distribution；Diversion trench (15) front end is connected to the intercommunicating pore (12), the diversion trench (15)
It is connected to first vaporization chamber (7).
4. a kind of steam generator according to claim 3, it is characterised in that: water conservancy diversion screw rod (13) front end is plugged on
On the location hole (16) that the connecting plate (3) opens up, water conservancy diversion screw rod (13) end is provided with convex block (17), the heating ring
(4) end is provided with for institute's clamping groove (18).
5. a kind of steam generator according to claim 4, it is characterised in that: be provided with sealing on the connecting plate (3)
It encloses (19), boiler jacket (2) upper end is provided with the flange ring for being closely attached on the connecting plate (3) and the sealing ring (19)
(20), fixed by bolt (21) between the connecting plate (3) and the flange ring (20).
6. a kind of steam generator according to claim 1 or 5, it is characterised in that: the boiler body (1) and the pot
Heat shield (22) are provided on the outside of stove outer covering (2).
7. a kind of steam generator according to claim 6, it is characterised in that: the heat shield (22) includes opposite grafting
Fixed heat-insulated upper casing (23) and heat-insulated lower casing (24) is provided between the heat-insulated upper casing (23) and the heat-insulated lower casing (24)
The limiting slot (25) being embedded for the connecting plate (3) side wall and the locating slot (26) for the boiler jacket (2) positioning.
8. a kind of steam generator according to claim 1, it is characterised in that: be additionally provided with temperature on the connecting plate (3)
Control device (29) and thermal protector (30).
9. a kind of steam cleaner, it is characterised in that: including steam generator such as of any of claims 1-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910780240.0A CN110500570A (en) | 2019-08-22 | 2019-08-22 | A kind of steam generator and its steam cleaner with the steam generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910780240.0A CN110500570A (en) | 2019-08-22 | 2019-08-22 | A kind of steam generator and its steam cleaner with the steam generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110500570A true CN110500570A (en) | 2019-11-26 |
Family
ID=68589165
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910780240.0A Pending CN110500570A (en) | 2019-08-22 | 2019-08-22 | A kind of steam generator and its steam cleaner with the steam generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110500570A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200982624Y (en) * | 2006-11-29 | 2007-11-28 | 宁波市鑫洋电器有限公司 | Steam generator |
| US20100166396A1 (en) * | 2008-12-31 | 2010-07-01 | WanQun Xu | Repeated Evaporation Garment Steamer |
| CN201688386U (en) * | 2010-05-17 | 2010-12-29 | 鸿茂电器国际有限公司 | Steam generator capable of sufficiently heating water to evaporation |
| CN204372881U (en) * | 2014-11-28 | 2015-06-03 | 东莞市菲腾电子科技有限公司 | A kind of steam generator |
| CN108273794A (en) * | 2018-03-23 | 2018-07-13 | 浙江达威电子股份有限公司 | The higher steam cleaner of vaporization efficency |
-
2019
- 2019-08-22 CN CN201910780240.0A patent/CN110500570A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200982624Y (en) * | 2006-11-29 | 2007-11-28 | 宁波市鑫洋电器有限公司 | Steam generator |
| US20100166396A1 (en) * | 2008-12-31 | 2010-07-01 | WanQun Xu | Repeated Evaporation Garment Steamer |
| CN201688386U (en) * | 2010-05-17 | 2010-12-29 | 鸿茂电器国际有限公司 | Steam generator capable of sufficiently heating water to evaporation |
| CN204372881U (en) * | 2014-11-28 | 2015-06-03 | 东莞市菲腾电子科技有限公司 | A kind of steam generator |
| CN108273794A (en) * | 2018-03-23 | 2018-07-13 | 浙江达威电子股份有限公司 | The higher steam cleaner of vaporization efficency |
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| CB02 | Change of applicant information |
Address after: No. 556, mayoral Road, Cixi, Ningbo, Zhejiang Applicant after: Ningbo Huanhai Intelligent Electrical Appliance Co., Ltd Address before: No. 556, mayoral Road, Cixi, Ningbo, Zhejiang Applicant before: NINGBO HUANHAI ELECTRIC APPLIANCES Co.,Ltd. |
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20191126 |