CN104762798A - Safety protection device of fan type heater - Google Patents
Safety protection device of fan type heater Download PDFInfo
- Publication number
- CN104762798A CN104762798A CN201510163242.7A CN201510163242A CN104762798A CN 104762798 A CN104762798 A CN 104762798A CN 201510163242 A CN201510163242 A CN 201510163242A CN 104762798 A CN104762798 A CN 104762798A
- Authority
- CN
- China
- Prior art keywords
- temperature
- fan heater
- type heater
- fan type
- heater
- 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
Classifications
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F58/00—Domestic laundry dryers
- D06F58/30—Drying processes
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
- D06F2103/02—Characteristics of laundry or load
- D06F2103/08—Humidity
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
- D06F2105/28—Electric heating
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F58/00—Domestic laundry dryers
- D06F58/32—Control of operations performed in domestic laundry dryers
- D06F58/34—Control of operations performed in domestic laundry dryers characterised by the purpose or target of the control
- D06F58/36—Control of operational steps, e.g. for optimisation or improvement of operational steps depending on the condition of the laundry
- D06F58/38—Control of operational steps, e.g. for optimisation or improvement of operational steps depending on the condition of the laundry of drying, e.g. to achieve the target humidity
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F58/00—Domestic laundry dryers
- D06F58/32—Control of operations performed in domestic laundry dryers
- D06F58/34—Control of operations performed in domestic laundry dryers characterised by the purpose or target of the control
- D06F58/50—Responding to irregular working conditions, e.g. malfunctioning of blowers
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Direct Air Heating By Heater Or Combustion Gas (AREA)
- Control Of Washing Machine And Dryer (AREA)
Abstract
The invention relates to a safety protection device of a fan type heater. On the premise of no harm to physical properties of dried objects, the heating power is improved to a maximum extent and the temperature of blown hot wind of the fan type heater at a normal working state is raised greatly, thus purposes of faster drying speed and better drying effect are achieved. Once the fan type heater is at a non-normal working state and before the temperature inside the fan type heater does not reach a height of damaging appliance elements and plastic elements, the safety protection device is started rapidly and the fan type heater is powered off to stop heating, thus no occurrence of accidents is guaranteed and no high-temperature damage to the elements inside the fan type heater is guaranteed; moreover, after the safety protection device of the brand-new fan type heater is started, users only need to unplug a power plug; after a reason of hindering smooth exhausting of hot wind is found, no appliance elements are replaced and the fan type heater is electrified again and returns to normal work.
Description
Technical field
The present invention relates to a kind of safety device of fan heater, at Ji Fengkouchu directly or by pipeline and flexible airbag, air cushion closed butt joint specifically, or the inner safety device installed additional of fan heater of relatively independent airtight heating space closed butt joint with cabinet type or body structure.
Background technology
The fan heater that the present invention relates to is dry by the hot body of the heating, drying dehumidifying damp-proof installations such as device, Guilt warming machine, cabinet type clothes dryer and dryer, and its effect provides continual thermal current to the flexible airbag docked, air cushion, relatively independent airtight heating space that is cabinet type or body structure.
The daily fan heater air outlet seen is wide-mouth unenclosed construction, is mainly used in heating.In heater, on the micarex supporting heater, design and installation has the overtemperature protection system such as thermostat and thermal cut-off, it is characterized in that closely directly carrying out monitor and forecast for heater temperature.According to the requirement of corresponding household heater national standard, household heater device body influential position must mark " forbid cover " printed words, also clearly restriction and examination criteria is had to the temperature rise of air outlet periphery under normal operation, reason is if machine proper heat reduction is obstructed, built-in temperature will be caused to raise rapidly, directly cause mechanical disorder, serious also can cause security incident.
Different from wide-mouth open type air outlet, the fan heater air outlet that the present invention relates to then is similar to the collection air port of hair dryer through practicality transformation, and at air outlet place directly or by pipeline and flexible airbag, air cushion closed butt joint, or with relatively independent airtight heating space closed butt joint that is cabinet type or body structure.
Judge with the occupation mode of the household heater specified in national standard and technical standard, may cause in standard mechanical disorder and cause contingency abnormal operating state---air outlet is capped, be the work normality of the fan heater that the present invention relates to just! Therefore directly transplanting is in the overtemperature protection system of traditional household heater, cannot adapt to the security protection needs of the fan heater that the present invention relates to.If it is the same high with wide-mouth open type household heater that operating temperature is arranged; once there is non-normal use situation; the heat produced in the fan heater that the present invention relates to cannot smooth and easy timely discharge; built-in temperature sharply raises in the short time; be enough to cause components and parts in machine overheated impaired reaching the high temperature before thermostat and overheat protector action; working of plastics is caused to be out of shape, until cannot continue to use.If thermostat and overheat protector operating temperature arrange too low, by the room for promotion of restriction heater heating power, reduce the temperature rise of air outlet thermal current, the speed of appreciable impact heating, drying and drying effect, this is a pair contradiction that cannot be in harmonious proportion.
The present invention gathers around the technical scheme that patented " warm air cushion " (patent No.: ZL 2,004 1 0085370.6) patent of invention complete sets of Techniques uses with applicant." warm air cushion " patent of invention technology of applicant thoroughly solves the technical barrier of the smooth and easy discharge of high-power heating heat of fan heater, in actual test, when fan heater heating power can be increased to 2000W, do not affect the use safety of fan heater.But prerequisite is must according to product description proper operation.If violate correct operating procedure or occur fortuitous event, the heat produced because of heater cannot smooth and easy timely discharge in machine by shutoff, the instantaneous rising of temperature in fan heater, and high temperature can cause components and parts fault and working of plastics distortion in machine.Consider from security standpoint, maximum of fan heater heating power on sale at present accomplishes 1200W.Although just look like the technology that Chinese high ferro has grasped speed per hour 350 axiom, before the reliability of unexpected security protection system is verified, a reason can only be run with 200 axiom speed.In order to reduce fault rate repair rate, improve customer satisfaction, the every aspect that our oral prompting in product description, machine casing full position, propaganda material, webpage and process of exchange etc. can be expected has done the time, even if like this or cannot guarantee the attention that causes all clients enough.In the case of depot repair after sale, because improper use causes overheated impaired machine in machine, except on heater, overheat protector burns, many with the secondary infringement such as motor heat blowout and working of plastics thermal deformation.In above case, use first with regard to more than occurring that the situation of mechanical disorder accounts for 8 one-tenth.Market feedback information let us is for many years recognized: if because of the maloperation of client, little error, the accident that accidentally occurs will bear that parts are impaired and must keep in repair after could continue the consequence of use, no matter for the volume production of product, or the penetration and promotion of product all can have a negative impact.Because non-normal use causes this persistent ailment of fan heater catastrophe failure to perplex us for many years, us have been become least to wish to encounter the technology barrier that but always cannot get around.
Summary of the invention
The object of the invention is the safety device designing a kind of brand-new fan heater, do not injuring by under the prerequisite of oven dry object physical property, promote heating power to greatest extent, the hot blast temperature increasing degree allowing fan heater blow out in normal operating conditions significantly improves, and once abnormal operating state appears in fan heater, the safety device of this brand-new fan heater can make Logic judgment in advance, started rapidly before built-in temperature reaches far away electric elements and the hurtful height of working of plastics, cut off the electricity supply, stop heating, guarantee not occur security incident, guarantee that in body machine, components and parts can not be subject to high temperature injury, and after the safety device of this brand-new fan heater starts, user only need pull up attaching plug, after the reason of the smooth and easy discharge of the hot blast that gets obstacles out of the way, without the need to changing any electric elements, again plug-in can recover normal work.
The technical scheme of the safety device of the fan heater that the present invention relates to realizes by following steps, at the frame structure surface reload temperature monitor controller of the fixing heater in fan heater inside, the temperature rise of operating temperature higher than the frame structure surface of the fixing heater recorded under normal operation of this temperature monitor and control device and the most high ambient temperature sum of routine use fan heater, lower than the minimum of the heat distortion temperature in the various plastic raw materials process technology parameters that fan heater uses.The frame structure of the fixing heater in described fan heater inside can be guiding air channel.The described relative position of surperficial reload temperature monitor controller in guiding air channel, fan heater inside be limited to fixing heater is installed in guiding air channel between forward terminal and aft terminal.Described temperature monitor and control device can be fixed on the outer surface in guiding air channel, also can be run through wind path wall.Described temperature monitor and control device can be hand-resetting.Described temperature monitor and control device can be temp probe, temperature controller, temperature limiter, thermal protector, thermal cut-off, Thermal Cutoffs, thermostat, temperature detect switch (TDS), thermistor.
Before the present invention determines final technical solution, we simulate various non-normal use situation, and to rapid wear components and parts and the position installation temperature detection device easily occurring thermal deformation, gathering mass data and compare, is that new technical solution finds breach.According to the operation principle of fan heater, no matter be that air-out is obstructed, or air intake is obstructed, or be that both have both at the same time, capital expanded motor operating load, motor surface temperature should have obvious rising, but actual monitoring shows, fan heater occurs that abnormal operation rear motor surface temperature rise does not obviously change, motor surface temperature does not have the corresponding rising of air themperature of random interior instantaneous rising yet, analyzing wherein reason is that motor self temperature rise in normal operation is higher, the hot blast temperature blown out with fan heater is very nearly the same, therefore not high to the hot blast temperature change sensitivity poured in down a chimney under abnormal operation.Find in the monitoring to fan heater internal gas flow temperature during abnormal operation, gas flow temperature is with the lengthening of abnormal work time, indentation rises, analyzing wherein reason is that high temperature can cause the temperature controller on heater to start stopping heating, now motor continues to run blowing cold air, after built-in temperature reduction reaches the reset temperature of temperature controller, heater recloses power supply heating, so circulates.During abnormal operating state, in machine, air themperature eustasy is frequent, be quick on the draw, but be subject to the impact of fan heater internal structure design, the Monitoring Data that different monitoring position obtains differs greatly, occur that the reason difference of abnormal operation also can cause Monitoring Data to occur significant difference ... through long term monitoring and the analysis to Monitoring Data, final technical solution has dropped on the guiding air channel in fan heater, Monitoring Data shows, under normal heating state, fan heater guiding wind duct temperature increasing degree for testing can not more than 20 DEG C, such as during test, environment temperature is 15 DEG C, under normal heating state, the temperature that test machine guiding air channel records all the time can not more than 35 DEG C by laser heating time restriction.When there is abnormal operating state, test machine guiding wind duct temperature presents with the prolongation of abnormal work time the trend that straight line rises, and temperature rise is obvious, and the impact not particularly being subject to temperature controller frequent starting produces temperature fluctuation, is easy to monitoring.Analyze wherein reason, mainly on test machine heating frame, the operating temperature of temperature controller is 85 DEG C, and reset temperature is 60 DEG C, and reset temperature is far above the temperature in test machine guiding air channel under normal heating state; Next heat being high-power heater produces cannot smooth and easyly be discharged, the trend that built-in temperature raises fast can not change because of the frequent movement of temperature controller, until thermal cut-off action thoroughly cuts off circuit, on test machine heating frame, the operating temperature of thermal cut-off is 145 DEG C.In actual use, test machine is used according to proper operation step indoor environment temperature less than 20 DEG C, the temperature rise in guiding air channel is no more than 20 DEG C, the actual temperature recorded should below 40 DEG C, if there is abnormal operation, the temperature in guiding air channel more than 40 DEG C, and will present linearity rising with the prolongation of abnormal work time.Under environment temperature is lower than 30 DEG C of conditions, normally just there is necessity of fan heater, we are loosened to 50 DEG C the operating temperature of the monitoring temperature device be arranged on fan heater guiding air channel accordingly, once monitor temperature more than 50 DEG C, just can logically judge that fan heater is in abnormal operation, cut off the electricity supply at once, stop heating, 50 DEG C is the temperature be perfectly safe to fan heater components and parts and plastic body.Accordingly, the temperature controlling device that operating temperature is 50 DEG C can be installed additional on fan heater leads air channel, particularly install the temperature controlling device of hand-reset additional, this temperature controlling device can by pulling up attaching plug after starting, discharge the reason causing unusual condition to occur, again the plug that plugs in again can recover the normal operation of fan heater, realizes object of the present invention.
The beneficial effect that technical solution of the present invention is brought reduces operation easier, realize " key operation ", the safety device of the fan heater that the present invention relates to has stopped the mechanical disorder because user's maloperation causes from technological layer, while reduction user operation easier, also greatly reduce fault rate and the repair rate of machine, therefore security protection level also rises to new high.Use fan heater, the puzzlement of the many points for attention of the N allowing the number of people feel dizzy greatly and proper operation step before more having allowed user thoroughly break away from, everything is completely given now safety device of the present invention and checks on.The safety device of the fan heater that the present invention relates to, coordinate the preset control program of electronic circuit board: start is blown a cold wind over automatically, blow drum mat body, bag, guarantee to heat front warm air cushion and fully heave and form hot air circulation passage and automatically switch to hot blast again and start heating; Heat time heating time arrives, and is automatically converted to after cold wind cools rapidly by machine intimate and just quits work.When the generation of non-normal use and fortuitous event, accurately can make Logic judgment, cut off while heater powers immediately, continuing to blow a cold wind over to allow in machine after cooling rapidly, then cuts off complete machine and power, and meanwhile also sends continuous alarm sound.Before failure cause is got rid of, fan heater is in standby alarm condition always, can not automatically resume work.User only need pull up power-line plug after finding machine strike, and get rid of and cause machine to block up the not smooth reason of wind, air draft, plug in line plug again, and start can recover normal operating conditions.Do not need to tear machine maintenance open, more do not need to change any components and parts.
The another one beneficial effect that technical solution of the present invention is brought promotes class of safety protection, realize " zero failure, non-maintaining ", brand new technical solution proposed by the invention is that when there is abnormal work to fan heater, the secondary infringement information of association is monitored, the objective judgement had scientific basis is made by " logic analysis " appearance to non-normal working situation, accomplish accurate, find in advance, timely action, cut off the electricity supply rapidly and stop heating, the fault rate caused by non-normal working is reduced to zero theoretically, thus for strengthening heating power, improve the built-in temperature controller operating temperature of heating frame, allow fan heater blow higher safer hot blast and technical guarantee is provided.Because the operating temperature of safety guard of the present invention is far below the operating temperature of tradition heating frame built-in temperature controller; will parts be caused impaired by Yin Gaowen when guaranteeing that abnormal conditions occur; and with hand-reset function; after safety guard starts; user only need pull up power-line plug; get rid of the factor causing abnormal work; again plug-in can recover normal work; the elbow processed of troublesome operation step before perfection solves; product is allowed really to achieve simple to operate, easy to use, safe and reliable; sturdy durable, significant increase user satisfaction.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is further described.
Accompanying drawing is the safety device schematic diagram of fan heater.
In figure 1, heater, 2, forward terminal, 3, aft terminal, 4, temperature control device, 5, guiding air channel.
Detailed description of the invention
Embodiment one, fan heater heating power is 1600W, on heating frame, the operating temperature of temperature controller is 85 DEG C, thermal cut-off operating temperature is 145 DEG C, mechanical switch timer, the temperature controller with manual reset (4) of operating temperature 50 DEG C is fixed on guiding air channel (5) surface of the fixing heater (1) in fan heater inside, temperature controller is connected with power line, also can be connected in heater circuit, between the forward terminal (2) that the relative position installing temperature controller additional is limited to the fixing heater of fan heater inside guiding air channel installation and aft terminal (3), after the air duct surfaces temperature of fan heater exceedes temperature controller operating temperature 50 DEG C, temperature controller starts, cut off the electricity supply, stop heating, after this temperature controller continues to remain open state, until pull up power-line plug, get rid of after causing the reason of non-normal working, again the line plug that plugs in again just can work on.
Embodiment two, fan heater heating power are 2000W, on heating frame, the operating temperature of temperature controller is 100 DEG C, thermal cut-off operating temperature is 150 DEG C, electronic circuit switching plate timing control system is established in fan heater, the temperature controller with manual reset (4) of operating temperature 50 DEG C is fixed, between the forward terminal (2) that the relative position installing temperature controller with manual reset additional is limited to the fixing heater of fan heater inside guiding air channel installation and aft terminal (3) on guiding air channel (5) surface of the fixing heater (1) in fan heater inside.Temperature controller with manual reset is connected with electronic circuit board, after the air duct surfaces temperature of fan heater exceedes temperature controller with manual reset operating temperature 50 DEG C, controlled to cut off the electricity supply by electronic circuit board, stop heating, motor then continues to blow a cold wind over 1 minute by electronic circuit board plug-in, allow cooling rapidly in machine, buzzer sends continuous alarm sound, until pull up power-line plug simultaneously.Pull up power-line plug, get rid of after causing the reason of non-normal working, the line plug fan heater that only need again plug in just can work on.
Claims (5)
1. the safety device of fan heater, it is characterized in that the frame structure surface reload temperature monitor controller at the fixing heater in fan heater inside, the temperature rise of operating temperature higher than the frame structure surface of the fixing heater recorded under normal operation of this temperature monitor and control device and the most high ambient temperature sum of routine use fan heater, lower than the minimum of the heat distortion temperature in the various plastic raw materials process technology parameters that fan heater uses.
2. the safety device of fan heater according to claim 1, is characterized in that the frame structure of the fixing heater in described fan heater inside can be guiding air channel.
3. the safety device of fan heater according to claim 2, it is characterized in that the relative position of the described surperficial reload temperature monitor controller in guiding air channel, fan heater inside be limited to fixing heater is installed in guiding air channel between forward terminal and aft terminal.
4. the safety device of fan heater according to claim 3, it is characterized in that described temperature monitor and control device can be fixed on the outer surface in guiding air channel, also can be run through wind path wall.
5. the safety device of fan heater according to claim 4, is characterized in that described temperature monitor and control device can be hand-resetting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510163242.7A CN104762798B (en) | 2014-06-03 | 2015-04-08 | Safety protection device of fan type heater |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410241820X | 2014-06-03 | ||
| CN201410241820.XA CN104005215A (en) | 2014-06-03 | 2014-06-03 | Safety protection device for fast bedding dryer |
| CN201510163242.7A CN104762798B (en) | 2014-06-03 | 2015-04-08 | Safety protection device of fan type heater |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104762798A true CN104762798A (en) | 2015-07-08 |
| CN104762798B CN104762798B (en) | 2017-05-03 |
Family
ID=51366107
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410241820.XA Pending CN104005215A (en) | 2014-06-03 | 2014-06-03 | Safety protection device for fast bedding dryer |
| CN201510163242.7A Active CN104762798B (en) | 2014-06-03 | 2015-04-08 | Safety protection device of fan type heater |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410241820.XA Pending CN104005215A (en) | 2014-06-03 | 2014-06-03 | Safety protection device for fast bedding dryer |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN104005215A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107894096A (en) * | 2017-12-14 | 2018-04-10 | 珠海格力电器股份有限公司 | Heater |
| CN111000294B (en) * | 2019-12-17 | 2022-07-08 | 深圳麦克韦尔科技有限公司 | Heating method and device of atomizer, computer equipment and storage medium |
| CN115172063B (en) * | 2022-06-09 | 2024-02-06 | 陈建 | High-temperature packaging method for liquid aluminum electrolytic capacitor |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01262895A (en) * | 1988-04-13 | 1989-10-19 | Sanyo Electric Co Ltd | Clothing drier |
| CN2228309Y (en) * | 1995-04-28 | 1996-06-05 | 贺可豪 | Temp.-adjustable balance type air-inflating mattress |
| CN1348736A (en) * | 2001-10-25 | 2002-05-15 | 丛德奎 | Heating, dehumidifying and disinfecting apparatus for bedding |
| CN201914050U (en) * | 2011-01-07 | 2011-08-03 | 柳州五菱汽车有限责任公司 | Electric motor car air heater |
-
2014
- 2014-06-03 CN CN201410241820.XA patent/CN104005215A/en active Pending
-
2015
- 2015-04-08 CN CN201510163242.7A patent/CN104762798B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01262895A (en) * | 1988-04-13 | 1989-10-19 | Sanyo Electric Co Ltd | Clothing drier |
| CN2228309Y (en) * | 1995-04-28 | 1996-06-05 | 贺可豪 | Temp.-adjustable balance type air-inflating mattress |
| CN1348736A (en) * | 2001-10-25 | 2002-05-15 | 丛德奎 | Heating, dehumidifying and disinfecting apparatus for bedding |
| CN201914050U (en) * | 2011-01-07 | 2011-08-03 | 柳州五菱汽车有限责任公司 | Electric motor car air heater |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104762798B (en) | 2017-05-03 |
| CN104005215A (en) | 2014-08-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105357780A (en) | Dry burning protection method and device for PTC (positive temperature coefficient) electric heater as well as household appliance | |
| WO2019100774A1 (en) | Electric heater protection method and device, and air conditioner | |
| CN103557596B (en) | A kind of control method of warm-air drier | |
| CN102829529B (en) | Control device and control method for air conditioner auxiliary electrical heating | |
| CN104762798A (en) | Safety protection device of fan type heater | |
| CN102154805A (en) | Clothes dryer air duct jam judging method and clothes dryer | |
| CN203930548U (en) | Intelligence is driven damp temperature regulating device | |
| CN103920666B (en) | Anti-creepage type lampblack absorber cleaning equipment | |
| CN101865527A (en) | Air heating apparatus and control method for preventing same from overheating | |
| CN105674561A (en) | Heat pump water heater and control method thereof | |
| CN103542531A (en) | Electric heater with fan, control method and circuit thereof and domestic appliance | |
| CN203803836U (en) | Anti-creeping type range hood washing equipment | |
| CN205208821U (en) | Humidifier | |
| CN202392892U (en) | Intelligent fireplace | |
| CN206136353U (en) | Heating device and cooking utensil | |
| US20120287546A1 (en) | Sensor-activated circuit-interrupting apparatus and method of using same | |
| KR20150036890A (en) | Freeze protection method for heat exchanger of gas water heater using heat ray | |
| CN208354983U (en) | A kind of Intelligent cabinet system | |
| CN204718357U (en) | A kind of drier controller | |
| CN104032099B (en) | A kind of heated-air circulation oven | |
| CN208192498U (en) | A kind of dedicated high temperature protection hair dryer of campus self-service device | |
| CN207945823U (en) | Heating device | |
| CN201434503Y (en) | Mini-type warm air blower | |
| CN203561076U (en) | Warm air heating control circuit of body cleaner | |
| CN106849009A (en) | A kind of heater protective apparatus |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder | ||
| CP02 | Change in the address of a patent holder |
Address after: 201600 Shanghai City, Songjiang District Songjiang road 2618 Lane Yuanyangdeyi town 132 Patentee after: Cong Dekui Address before: 201600 Shanghai City, Songjiang District Songjiang road 2618 Lane Yuanyangdeyi town 46 Patentee before: Cong Dekui |