CN108489091A - Warm-air drier - Google Patents
Warm-air drier Download PDFInfo
- Publication number
- CN108489091A CN108489091A CN201810409125.8A CN201810409125A CN108489091A CN 108489091 A CN108489091 A CN 108489091A CN 201810409125 A CN201810409125 A CN 201810409125A CN 108489091 A CN108489091 A CN 108489091A
- Authority
- CN
- China
- Prior art keywords
- warm
- ceramic substrate
- ontology
- pair
- air drier
- 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.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H3/00—Air heaters
- F24H3/02—Air heaters with forced circulation
- F24H3/06—Air heaters with forced circulation the air being kept separate from the heating medium, e.g. using forced circulation of air over radiators
- F24H3/08—Air heaters with forced circulation the air being kept separate from the heating medium, e.g. using forced circulation of air over radiators by tubes
- F24H3/081—Air heaters with forced circulation the air being kept separate from the heating medium, e.g. using forced circulation of air over radiators by tubes using electric energy supply
- F24H3/085—The tubes containing an electrically heated intermediate fluid, e.g. water
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/18—Arrangement or mounting of grates or heating means
- F24H9/1854—Arrangement or mounting of grates or heating means for air heaters
- F24H9/1863—Arrangement or mounting of electric heating means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/20—Arrangement or mounting of control or safety devices
- F24H9/2064—Arrangement or mounting of control or safety devices for air heaters
- F24H9/2071—Arrangement or mounting of control or safety devices for air heaters using electrical energy supply
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H2250/00—Electrical heat generating means
- F24H2250/02—Resistances
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Resistance Heating (AREA)
Abstract
The present invention relates to a kind of warm-air driers, it includes：It include the fluid heating part for accommodating the ontology of heat-transfer fluid and at least two primary heaters for being attached to the body outer surface, the fluid circulation portion of sealing and circulating structure is formed with the ontology, and the air blower for being set to the side in the fluid circulation portion and blowing to the fluid circulation portion；At least two primary heater respectively includes ceramic substrate, positioned at the ceramic substrate and positioned at the ceramic substrate while both sides of the edge a pair of conductive figure and positioned at the ceramic substrate on one side and be electrically connected to the resistive layer of the pair of conductive pattern, the resistive layer is made of thick film semiconducting, and the both ends of the thick film semiconducting are overlapped in the pair of conductive pattern respectively.Warm-air drier of the present invention is good for the environment since solar energy can be used as electric power source；It is simple in structure due to can be omitted the sink for supplying heat transfer liquid.
Description
Technical field
The present invention relates to a kind of warm-air driers, more particularly to a kind of warm-air drier equipped with thick film semiconducting heater.
Background technology
Warm-air drier is the device that warm wind is sent out by hydronic air.The heating of air usually by burning petroleum,
The fossil feedstocks such as liquefied gas or coal are completed using electric heater.But room air is polluted when combusts fossil raw material, because
This needs another installation ventilation device.In recent years, as the existing energy such as oil, coal tends to be exhausted, constantly research can generation by people
For other energy of the existing energy, listed rapidly using the warm-air drier of electric heater.But utilize the warm-air drier of electric heater
Average the electric consumption is 2~5KW/h, and not only power consumption is larger, but also cannot be used when power failure.
Invention content
The purpose of the present invention is to overcome the above shortcomings and to provide a kind of not only environmental protection but also efficient warm-air driers.
To achieve the goals above, this invention takes following technical solutions.
Warm-air drier of the present invention includes：Include for accommodating the ontology of heat-transfer fluid and being attached to the body outer surface extremely
The fluid heating part of few two primary heaters, forms the fluid circulation portion of sealing and circulating structure with the ontology, and is set to
The side in the fluid circulation portion and the air blower blown to the fluid circulation portion；At least two primary heater point
Not Bao Kuo ceramic substrate, positioned at the ceramic substrate and positioned at the ceramic substrate while both sides of the edge a pair of conductive
Figure and positioned at the ceramic substrate one side and be electrically connected to the resistive layer of the pair of conductive pattern, the resistive layer is by thick film
Semiconductor is constituted, and the both ends of the thick film semiconducting are overlapped in the pair of conductive pattern respectively.
At least two primary heater further includes the lid for covering the thick film semiconducting respectively.
The inside of the ontology, which divides, the sink area including empty sink and the flow path including being connected to the sink
Flow path area.
The area in the flow path area is the 25%~50% of the sink area area.
The fluid heating part further includes at least two secondary heaters for being attached to the body outer surface, it is described at least
Two primary heaters and at least two secondary heater are driven by different electrical power respectively.
The advantageous effect of warm-air drier of the present invention is：Since solar energy can be used as electric power source, it is good for the environment；By
It is therefore simple in structure in can be omitted the sink for supplying heat transfer liquid.
Also, due to the ontology for heating fluid heating part by plane heater equipped with thick film semiconducting, heating
Excellent effect.
Description of the drawings
And Fig. 1 is the structure diagram of warm-air drier of the present invention.
Fig. 2 is the part-structure schematic diagram of warm-air drier of the present invention.
Fig. 3 is the I-I ' of Fig. 2 to sectional view.
Fig. 4 is the structural schematic diagram of primary heater in Fig. 2.
Fig. 5 be Fig. 4 II-II ' to sectional view.
Fig. 6 is another embodiment structure schematic diagram of primary heater in Fig. 2.
Fig. 7 is the another embodiment structure schematic diagram of primary heater in Fig. 2.
Fig. 8 is the side view of fluid heating part in Fig. 1.
Specific implementation mode
The present invention can there are many variations, it is possibility to have various embodiments.Specific embodiment is carried out below in conjunction with the accompanying drawings
It is described in detail.By following the description, effect of the invention, feature and the method for realizing the effect and feature will be apparent from and
It is clear.But the present invention is not limited to following embodiments, can be realized by diversified forms.
In following embodiments, the terms such as " first ", " second " do not have specific meaning, it is served only for distinguishing mutually isostructural
Component.
Include plural number in following embodiments, when not clearly stated to the statement of odd number.
In following embodiments, the terms such as " comprising " or " having " indicate the presence for being recorded in the feature or structure of specification,
It is not meant to the possibility that can exclude to increase at least one other feature or structure in advance.
Described film, area, structure etc. are located at the upper surface of other positions in embodiment, include not only being directly arranged at other portions
Position also includes the situation for being equipped with other films, area, structure etc. among it above.
For convenience of description, structural element is exaggerated or is reduced in attached drawing.That is, for convenience of description, in attached drawing
Shown in structure size and thickness be random.Therefore, the invention is not limited in structures illustrated in the drawings.
When a certain embodiment can be realized by another embodiment, specific process can with described in specification
Sequence is different.For example, two processes continuously illustrated actually can be both carried out at the same time, can also carry out in reverse order.
The embodiment of the present invention is described in detail below in conjunction with the accompanying drawings.To identical or corresponding structure tag when illustrating
The same symbol.
As shown in Figure 1 to Figure 3, warm-air drier 10 of the present invention includes power supply 100, control unit 200, fluid heating part 300, stream
Body circulation portion 400, air blower 500 and display unit 600.
The power supply 100 supplies driving power to warm-air drier 10.Such as, power supply 100 is added by control unit 200 to fluid
Hot portion 300 supplies direct current DC.The power supply 100 includes solar cell module, and generates electricity by photoelectric effect.It is described
Power supply 100 further includes the energy storage portion of the electricity for storing solar cell module generation, and the energy storage portion includes
Secondary cell.To utilize the electric drive warm-air drier 10 that solar cell module generates on, daytime, or by solar cell module
The electricity of generation is stored in energy storage portion, at night using the electric drive warm-air drier 10 for being stored in energy storage portion, drives warm-air drier
Carbon dioxide etc. is not will produce when 10, it is very environmentally friendly.The power supply 100 can supply direct current DC, can also supply exchange
Electric AC.
The control unit 200 is for controlling warm-air drier 10 comprehensively.In order to according to the temperature adjusting fluid heating part 300 of setting
Heating temperature, the control unit 200 adjusts the electricity that power supply 100 supplies fluid heating part 300, and passes through and control air blower
500 come adjust air blower 500 generation wind-force size.When from solar cell module enough electric power can not be obtained, control unit
200 optional power supply sources make fluid heating part 300 obtain alternating current AC.That is, control unit 200 can be such that power supply 100 preferentially supplies
Direct current DC, but when the direct current DC deficiencies that solar cell module can not be powered or be supplied, by controlling power supply 100,
Power supply source is changed into alternating current AC, or supplies direct current DC and alternating current AC simultaneously.
The fluid heating part 300 is used to heat internal heat-transfer fluid.The heat-transfer fluid of heating is by being connected to fluid
The fluid circulation portion 400 of heating part 300 is recycled.Heat-transfer fluid can be water or silicone oil.
Fluid heating part 300 includes ontology 310 and the multiple primary heaters 320 for being attached to 310 outer surface of ontology, is passed through
Also heat-transfer fluid can be heated when multiple 320 heater bodies 310 of primary heater.The primary heater 320 can be by direct current DC
Or alternating current AC drivings.
The ontology 310 is formed by the outstanding material of conductivity of heat.For example, ontology 310 can be by formation such as aluminium, copper, but not
It is confined to this.Ontology 310 includes the outlet 312 and inflow entrance 314 for heat transfer fluid circulation, outlet 312 and inflow entrance
314 are connected to the both ends in fluid circulation portion 400.
The fluid circulation portion 400 includes zig-zag type piping so that the length longest in equal area, can by with ontology
310 identical materials are formed.At least one end in the fluid circulation portion 400 is equipped with the pump P for forced circulation heat-transfer fluid.
The side in the fluid circulation portion 400, which is equipped with to keep watch, blows to the air blower 500 in fluid circulation portion 400.The drum
Wind turbine 500 includes fan.The fan can be centrifugal fan（Blower fan）Or sirocco fan（Sirocco
fan）, but not limited to this.Air blower 500 further includes the inlet scoop for sucking extraneous air.
310 inside of the ontology can be divided into sink area S1 and flow path area S2, and sink area S1 includes a sink 318, flow path
Area S2 includes the flow path 316 for being connected to sink 318.
That is, flow path 316 is not formed at the entire inside of ontology 310.A part inside the ontology 310 is formed with
Sink 318 can make ontology 310 accommodate sufficient heat-transfer fluid.It is therefore not necessary to separately set for being fed past ontology 310 and heat
Heat-transfer fluid sink, so as to simplify 10 structure of warm-air drier.Also, ontology 310 and fluid circulation portion 400 are sealing and circulating
Structure, therefore, heat-transfer fluid will not drain evaporation, without supplementing heat-transfer fluid.
The water route 316 is connected with outlet 312, and is in zig-zag type, compact-sized, to which the row of can be improved is to ontology
The efficiency of heating surface of heat-transfer fluid outside 310.
The area of the flow path area S2 is the 25%~50% of sink area S1 areas.When the area of flow path area S2 is less than sink area
S1 areas 25% when, the length of flow path 316 is too short, and the heat-transfer fluid not heated fully is made to flow to fluid circulation portion 400.Work as stream
When the area of road area S2 is more than the 50% of sink area S1 areas, enough heat-transfer fluids are difficult to recycle, to reduce the effect of warm-air drier 10
Rate.
Multiple primary heaters 320 are attached to the outer surface of ontology 310.When ontology 310 is in hexahedron shape, multiple first
Heater 320 is attached in 310 outer surface of ontology in maximum one side.Such as, multiple primary heaters 320 can be in 48V direct currents
It is driven under electric DV, voltage is identical as the pump P and the driving voltage of air blower 500, so as to control multiple heaters simultaneously
320, air blower 500 and pump P, can simplify the structure of warm-air drier 10.
Multiple primary heaters 320 are planar heater can be sent out so as to effective heater body 310 with low battery
High temperature heat.The multiple primary heater 320 can respectively include thick film semiconducting, be described in detail by Fig. 4 and Fig. 5.
As shown in Figure 1, the display unit 600 is used for display working condition, the display unit 600 can also include input unit
Deng.For example, display unit 600 may include power key, temperature adjustment key, adjusting wind-force size key etc., for showing setting state and warm wind
The current working status etc. of machine 10.The display unit 600 is equipped with the LED for sending out different colours light, passes through the ON/OFF point of power supply
Bright or extinguishing LED modules with different colors.
As shown in Figures 4 and 5, the primary heater 320 includes ceramic substrate 321, is set to 321 one side of ceramic substrate
A pair of conductive Figure 32 2 and the resistive layer 324 that is set to the one side of ceramic substrate 321 and is connected with a pair of conductive Figure 32 2.
The ceramic substrate 321 contains the Al more than 96%2O3, there is good thermal stability and thermal diffusivity, it can effective handle
The heat transfer that resistive layer 324 generates is to ontology 310.
Adhesion layer A is coated on the another side of the ceramic substrate 321, the ceramic substrate 321 passes through the adhesion layer A
It is adhered to ontology 310.In order to which the heat transfer that generates primary heater 320 is to ontology 310, the adhesion layer A not only needs
With adhesion strength, and should also have compared with high thermal conductivity.For this purpose, the adhesion layer A can be coated and be led including 3~35 weight percent
Electrical carbon system powder, 5~45 weight percent aluminium nitride powders, 7~35 weight percent heat stable resins, 7~35 weight percents
Constituent is coated than the heat transmission aluminium nitride of waterglass and 10~50 weight percent solvents and is formed.
Conductive carbon system powder is by least one substance for being selected from graphite, activated carbon, carbon nanotube and carbon black
It is formed, resin of the heat stable resin by glass transition temperature more than or equal to 80 DEG C is constituted.For example, heat stable resin is by from polyphenyl
And imidazoles resin（PBI）, PPQ, PBO, PBT, PAI, PI, epoxy resin, phenolic resin, vinyl phenol urea formaldehyde, aromatic series two
At least one resin selected in first polyimide resin and acrylic resin is constituted.
The solvent by from second ether solvent, aromatic solvent, acetates solvent, ketones solvent, alcohol type solvent and
At least one substance selected in distilled water is constituted.
A pair of conductive Figure 32 2 is set on the two edges of 321 one side of ceramic substrate.The conductive pattern 322 is in ceramic base
It is formed by firing after one face Screen-printed conductive slurry of plate 321.First is connected separately on a pair of conductive Figure 32 2 to match
Line 325 and the second wiring 327, for powering.
The electrocondution slurry is by conducting particles, adhesive, organic vehicle（vehicle）It is mixed in solvent and is formed
's.The conducting particles of the electrocondution slurry can be silver, palladium, platinum, copper etc., and described adhesive can be PbO-B2O3-SiO2Or
PbO-Bi2O3-SiO2It is inorganic bond, the organic vehicle can be cellulose, acrylic resin, and solvent can be
Terpinol, butyl carbitol acetate（BCA：Butyl Carbitol Acetate）Deng.
The resistive layer 324 is made of thick film semiconducting.That is, resistive layer 324 is by the methods of silk-screen printing by resistance
Slurry is burnt into and is formed after being printed in the one side of ceramic substrate 321, and the thickness of resistive layer 324 is 5~100.Resistive layer 324
Edges at two ends it is Chong Die with a pair of conductive Figure 32 2 respectively, formed electrical connection.
The resistance slurry is by conducting particles, adhesive, organic vehicle（vehicle）It is mixed in solvent and is formed.
Such as, the conducting particles of the resistance slurry can be RuO2、PbRu2O8.5Deng adhesive, organic vehicle and solvent and conductive paste
The adhesive of material, organic vehicle and solvent are identical.Resistance slurry is used to improve thermal capacity as additive, can also include
Al2O3、TiO2、Nb2O5Equal ceramic particles.
Although it is not shown, being also provided with the protective film for protective resistance layer 324 on the resistive layer 324.The guarantor
Cuticula is burnt into and is formed after dielectric slurry is printed in resistive layer 324 above, and the dielectric slurry is by inorganic particulate, bonding
Agent, organic vehicle are mixed in solvent and are formed.Such as, the inorganic particulate can be glass etc., and adhesive can be PbO-
B2O3-SiO2 systems inorganic bond, organic vehicle and solvent are identical as conductive organic vehicle and solvent.
Primary heater 320 as described above is equipped with the resistive layer 324 formed with the thick film semiconducting, forms planar
Heater.The primary heater 320 is adhered to ontology 310 by the excellent adhesion layer A of heat transfer efficiency, can effective heater body
310, excellent heating effect can be reached with low energy consumption, the energy efficiency of warm-air drier 10 can be improved.As shown in Fig. 2, being equipped with eight
The average power consumption of the warm-air drier 10 of primary heater 320 is 0.7~1KWh, and power consumption is using the warm of existing electric heater
The half of 2~5KWh of wind turbine power consumption.
With reference to Fig. 6 to being illustrated different from the structure of Fig. 4 and primary heater illustrated in fig. 5 320.
As shown in fig. 6, being equipped with multiple separation resistance 329 between a pair of conductive Figure 32 2 of the primary heater 320B.It is more
A separation resistance 329 is mutually isolated along the extending direction of a pair of conductive Figure 32 2.It can be understood as the primary heater 320 of Fig. 4
Resistive layer 324（Film semiconductor afterwards）Including multiple separation resistance 329.
Multiple both ends for separating resistance 329 partly overlap with a pair of conductive Figure 32 2 respectively, keep multiple separation resistance 329 logical
Electricity.
When powering to a pair of conductive Figure 32 2, it is connected to the temperature in center of the thick film semiconducting of a pair of conductive Figure 32 2 most
It is high.As shown in fig. 6, to described in the state that mutually isolated multiple separation resistance 329 are connected to a pair of conductive Figure 32 2
When a pair of conductive Figure 32 2 powers, each temperature for separating 329 center of resistance is high, as a result, primary heater can be concentrated on
The high-temperature region in the centers 320B becomes larger, and entire primary heater 320B is made to have uniform temperature.
As shown in fig. 7, primary heater 320C includes ceramic substrate 321, a pair for being set to 321 one side of ceramic substrate is led
Electrograph 322；It is set to the one side of ceramic substrate 321, the edge resistive layer 324 Chong Die with a pair of conductive Figure 32 2；And it is separately connected
In the first wiring 325 and the second wiring 327 of a pair of conductive Figure 32 2.The primary heater 320C further includes being set to resistance
At least one lid 328,328 ' above layer 324.Shown in Fig. 7 is that lamination is provided with the first ceramics successively on resistive layer 324
Lid 328 and the second ceramic cap 328 ', but not limited to this.
First ceramic cap 328 and the second ceramic cap 328 ' are formed by the material for being identical to ceramic substrate 321, therefore, first
Ceramic cap 328 and the second ceramic cap 328 ' have good thermal stability and thermal diffusivity.First ceramic cap 328 and the second ceramic cap
328 ' when being formed in above resistive layer 324, can alleviate the thermal shock that pair the first ceramic substrate 321 is formed due to instant heating,
To prevent 321 heat damage of ceramic substrate.
As shown in figure 8, being attached at least two respectively on the outer surface of the side relative to each other of fluid heating part 300B
Primary heater 320 and at least two secondary heaters 330.
The primary heater 320 is identical as aforementioned primary heater.Secondary heater 330 can both be identical to first and add
Hot device 320 may also be distinct from that primary heater 320.For example, primary heater 320 can be driven by direct current DC, second adds
Hot device 330 can be driven by alternating current AC.Therefore, when the direct current DC deficiencies that solar cell module cannot be generated electricity or be supplied
When, the secondary heater 330 is in the alternating current AC for replacing the alternating current of direct current DC supplies or being supplied together with direct current DC
Under the action of drive, to which the efficiency of warm-air drier 10 can be improved.
Above-mentioned explanation is only the detailed description to the embodiment of the present invention, but the scope of the present invention be not limited to it is above-mentioned
Embodiment.Claims and specification and its it is shown in the drawings within the scope of by some modification, it can be achieved that different
Embodiment, and this modification should belong to the scope of the present invention.
Claims (5)
1. a kind of warm-air drier, it is characterised in that：It includes：It include the ontology for accommodating heat-transfer fluid（310）Be attached to institute
State ontology（310）At least two primary heaters of outer surface（320）Fluid heating part（300）, with the ontology（310）Shape
At the fluid circulation portion of sealing and circulating structure（400）, and it is set to the fluid circulation portion（400）Side and to the stream
Body circulation portion（400）The air blower of air-supply（500）；At least two primary heater（320）Respectively include ceramic substrate
（321）, be located at the ceramic substrate（321）And positioned at the ceramic substrate while both sides of the edge a pair of conductive figure
（322）And it is located at the ceramic substrate（321）One side and be electrically connected to the pair of conductive pattern（322）Resistive layer
（324）, the resistive layer（324）It is made of thick film semiconducting, the both ends of the thick film semiconducting are overlapped in the pair of respectively
Conductive pattern（322）.
2. warm-air drier according to claim 1, it is characterised in that：At least two primary heater（320）Respectively also
It include the lid for covering the thick film semiconducting（328、328′）.
3. warm-air drier according to claim 1, it is characterised in that：The inside of the ontology, which divides, to be had including an empty sink
Sink area（S1）With the flow path area of the flow path including being connected to the sink（S2）.
4. warm-air drier according to claim 3, it is characterised in that：The flow path area（S2）Area be the sink area
（S1）The 25%~50% of area.
5. warm-air drier according to claim 1, it is characterised in that：The fluid heating part（300）Further include being attached to institute
State at least two secondary heaters of body outer surface（330）, at least two primary heater（320）With described at least two
A secondary heater（330）It is driven respectively by different electrical power.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810409125.8A CN108489091A (en) | 2018-05-02 | 2018-05-02 | Warm-air drier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810409125.8A CN108489091A (en) | 2018-05-02 | 2018-05-02 | Warm-air drier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108489091A true CN108489091A (en) | 2018-09-04 |
Family
ID=63313551
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810409125.8A Withdrawn CN108489091A (en) | 2018-05-02 | 2018-05-02 | Warm-air drier |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108489091A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024149997A1 (en) * | 2023-01-14 | 2024-07-18 | Digital Heat Ltd | Electric space heater |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR200409651Y1 (en) * | 2005-12-09 | 2006-03-03 | 권동철 | Heat exchanger for a warm air circulator |
| CN101231032A (en) * | 2008-01-28 | 2008-07-30 | 上海凡清环境工程有限公司 | Novel warm-air machine |
| CN203720539U (en) * | 2014-02-12 | 2014-07-16 | 东莞市东思电子技术有限公司 | Thick-film heating element for laser printer |
| CN205481690U (en) * | 2016-01-19 | 2016-08-17 | 佛山吉宝信息科技有限公司 | Electric heat diaphragm type hot -water heating dish |
| CN208154823U (en) * | 2018-05-02 | 2018-11-27 | Dc路有限公司 | Warm-air drier |
-
2018
- 2018-05-02 CN CN201810409125.8A patent/CN108489091A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR200409651Y1 (en) * | 2005-12-09 | 2006-03-03 | 권동철 | Heat exchanger for a warm air circulator |
| CN101231032A (en) * | 2008-01-28 | 2008-07-30 | 上海凡清环境工程有限公司 | Novel warm-air machine |
| CN203720539U (en) * | 2014-02-12 | 2014-07-16 | 东莞市东思电子技术有限公司 | Thick-film heating element for laser printer |
| CN205481690U (en) * | 2016-01-19 | 2016-08-17 | 佛山吉宝信息科技有限公司 | Electric heat diaphragm type hot -water heating dish |
| CN208154823U (en) * | 2018-05-02 | 2018-11-27 | Dc路有限公司 | Warm-air drier |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024149997A1 (en) * | 2023-01-14 | 2024-07-18 | Digital Heat Ltd | Electric space heater |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180904 |