CN105933998A - Electric heater and method for preparing same - Google Patents
Electric heater and method for preparing same Download PDFInfo
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- CN105933998A CN105933998A CN201610295932.2A CN201610295932A CN105933998A CN 105933998 A CN105933998 A CN 105933998A CN 201610295932 A CN201610295932 A CN 201610295932A CN 105933998 A CN105933998 A CN 105933998A
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- 239000000843 powder Substances 0.000 claims description 2
- 238000005485 electric heating Methods 0.000 abstract description 6
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Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/40—Heating elements having the shape of rods or tubes
- H05B3/42—Heating elements having the shape of rods or tubes non-flexible
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/10—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/02—Details
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/02—Details
- H05B3/06—Heater elements structurally combined with coupling elements or holders
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/10—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor
- H05B3/12—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor characterised by the composition or nature of the conductive material
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
- H05B2203/017—Manufacturing methods or apparatus for heaters
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
- H05B2203/02—Heaters using heating elements having a positive temperature coefficient
Landscapes
- Resistance Heating (AREA)
- Thermistors And Varistors (AREA)
Abstract
The invention provides an electric heater and a method for preparing the same. The electric heater includes a heating element, a heat radiation fin, and does not include a metal sleeve. The heating element includes an anode, an electric heating element and a cathode. The electric heating element is arranged between the anode and the cathode. According to the invention, the electric heater increases efficiency of heat exchange and increases volumetric power density.
Description
Present patent application is divisional application.The application number of original bill is
CN201410348403.5
, the applying date is
2014
Year
7
Month
21
Day, denomination of invention is: a kind of electricity heat-producing machine and preparation method thereof.
Technical field
The present invention relates to a kind of heater and preparation method thereof, particularly relate to a kind of PTC electricity heat-producing machine not using metal sleeve with higher heat exchange efficiency and preparation method thereof.
Background technology
PTC is the english abbreviation of " positive temperature coefficient (Positive Temperature Coefficient) ".Ptc material has the switching characteristic of temperature-sensitive, current limliting, time delay etc. and contactless, noiseless, the feature of length in service life, and accordingly, as a kind of thermal resistance material, its main application can be divided into switch and heating two big classifications.Such as, in field of switches, it can be applicable to the small household electrical appliances such as refrigerator startup, the protection of motor tranformer protection, programme-controlled exchange and mosquito repellant, curly hair hair iron, electric iron.In heating class field, utilize heating class PTC stable performance, heat up rapidly, affected the characteristics such as little by mains fluctuations, make the various heater products being widely used in warmer, dryer, air curtain, air-conditioning etc..
PTC electricity heat-producing machine (heater) uses PTC heat-sensible high polymer or ceramic component, some monolithics form through high-temp glue bonding with corrugated fins aluminum strip after combining, have the advantages that thermal resistance is little, heat exchange efficiency is high.Its maximum feature is that security is high, when i.e. meeting fan trouble stall, PTC electricity heat-producing machine is insufficient because of heat radiation, power the most drastically declines, now the surface temperature of PTC electricity device maintains (generally 220 DEG C) about Curie temperature, thus " rubescent " phenomenon of electric heating tubing heater surfaces will not be produced, greatly reduce the probability having an accident.
PTC electricity heat-producing machine the most on the market, its basic structure includes the metal sleeve (flat metal tube) that a cross section is rectangle, heating and insulating barrier are set in metal sleeve, heating is by positive and negative electrode, and the PTC-element composition between electrode, insulating layer material is plastic sheeting, electricity heating elements is wrapped up, it is pasted with heat sink strip on two bigger radiating surfaces outside metal sleeve, heat sink strip includes the corrugated aluminium strip of one section of continuous bending and is welded on corrugated aluminium strip, two aluminium sheets on lower two sides, the aluminium sheet of metal sleeve outer wall and heat sink strip side is mutually pasted by heat-conducting glue, refer to accompanying drawing 1.Therefore, PTC electricity heat-producing machine heat transfer efficiency the most on the market is relatively low.
PTC electricity heat-producing machine is improved by the most existing multiple prior art, such as: Chinese patent CN201119017Y discloses a kind of PTC electricity heat-producing machine, multiple triangle being arranged side by side is made in the vertical section of heat sink strip by it, such a construction increases the heat transfer efficiency of PTC electricity heat-producing machine, but the raising limitation of its heat transfer efficiency, and the form being arranged side by side too increases material usage.Chinese patent CN201146614Y discloses a kind of PTC electricity heat-producing machine, it seals at the end insulating packing of PTC core pipe (metal sleeve), although this application improves the insulative water-proof anti-dust performance of PTC electricity heat-producing machine, but it makes the heat transfer efficiency of PTC electricity heat-producing machine lower.Chinese patent CN103179701A discloses the thermogenesis element of a kind of electric heating combined equipment for motor vehicles, by the several support stickers being arranged in the circumferential direction of container, to improve thermal insulation layer of the prior art, CN101902845A, CN102668691A, CN102434968A, CN103179700A all propose improvement to existing PTC electricity heat-producing machine, but it does not all change the defect that existing PTC electricity heat-producing machine heat transfer efficiency is low, manufacturing cost is high.
In PTC heat-producing machine prior art, insulating materials is all to be shaped to solid (such as insulating paper or potsherd) in advance at present, is arranged on outside electrode by these insulating papers or potsherd the most again, conducts heat with PTC heating by the way of compression.And contacting between solid with solid inevitably results from bigger thermal contact resistance, make moderate progress after smearing heat-conducting glue, but be still difficult to solve well, moreover the most separately add one daub operation.
Though Chinese patent CN201323665Y is provided without metal sleeve, but its insulating barrier still uses the preformed solid insulating materials such as electro-insulating rubber or insulating ceramic film, and inevitably produces bigger thermal contact resistance between pre-formed solid insulating layer and positive and negative electrode and fin；Moreover although can reducing thermal contact resistance by arranging bonding agent between solid insulating layer and heat generating component, but the reduction of this thermal contact resistance being the most extremely limited many one bonding process, adds the complexity of operation.
Summary of the invention
The invention provides a kind of electric heat-producing machine not including flat metal tube and preparation method thereof, to improve the heat exchange efficiency of electricity heat-producing machine at present, increase volumetric power density, the thermal resistance cut down the number of intermediate links, and reduce manufacturing cost.
A first aspect of the present invention is for providing the preparation method of a kind of electricity heat-producing machine.
Wherein, described electricity heat-producing machine is preferably PTC electricity heat-producing machine, and the most described PTC electricity heat-producing machine does not include flat metal tube.
Preparation method described in first aspect of the present invention comprises the steps:
Step 1, stacks by positive electrode, PTC-element and negative electrode according to described order and fixes, and forms PTC heating；
Step 2, makes fin contact with at least one electrode outer surface；
Wherein, between fin and electrode, thermal insulation layer it is provided with；Wherein, described fin can be known any heat abstractor.
Wherein, in a kind of preferred embodiment of step 2: thermal insulation layer is arranged on the outer surface of electrode, then fin is bonded to electrode outer surface.
Wherein, in the another kind of preferred embodiment of step 2: thermal insulation layer is arranged on fin with electrode contact one side, then fin is bonded to electrode outer surface.
Wherein, in the above-mentioned methods, if there is the electrode not contacted with fin or a part for electrode, then the outer surface at the described electrode not contacted with fin or a part for described electrode is also provided with described thermal insulation layer.
In a kind of preferred embodiment of preparation method described in first aspect of the present invention: step includes:
Step 1, stacks by positive electrode, PTC-element and negative electrode according to described order and fixes, and forms PTC heating；
Step 2, it is provided that multiple PTC heatings and multiple fin, and described PTC heating is arranged alternately with described fin, fin is bonded in electrode outer surface；
Wherein, between fin and electrode, thermal insulation layer it is provided with.
Preferably, the material of described radiating fin can be the metal of any good heat conductivity, such as stainless steel, aluminium, aluminium alloy etc., and preferably aluminium alloy.
Preferably, the method arranging thermal insulation layer can be one or more in coating, smooth and wrapped (such as including the modes such as winding, parcel).Wherein, more preferably use the mode of coating, more preferably the mode of spraying.
Preferably, the material of described thermal insulation layer can be pottery, plastics or its mixture, such as one or more in Teflon, polyimides, Teflon doped with ceramic powders, glass, silica gel, polyethylene, polypropylene etc., and it is preferably pottery, to provide more preferable heat-conducting effect.
In one preferred embodiment of the invention, described thermal insulation layer includes insulating barrier and the bond coating between insulating barrier and electrode or fin.Wherein, described insulating barrier is preferably above-mentioned pottery, plastics or its mixture, and most preferably pottery.
In one preferred embodiment of the invention, the method to set up of described thermal insulation layer is preferably: spray bond coating at electrode outer surface or fin outer surface, described bond coating is preferably alloy, such as Al-Ni alloy, Al-Zn alloy, Ni-Cr alloy, Al-Ni-Cr alloy；Then insulating barrier is formed at bond coating surface spraying insulating materials.
The method of described sprays insulating material is preferably the modes such as plasma spraying, flame-spraying, detonation flame spraying.
In one preferred embodiment of the invention, in step 2, described PTC heating is coated with by insulating heat-conductive film, forms described thermal insulation layer.
Preferably, any one or a few during the material of the positive electrode in step 1 and negative electrode can be stainless steel, aluminium, silver, copper, electrically conductive graphite.
Preferably, the most also include the surface pre-treating process to electrode and/or fin, being beneficial to preferably fit with other each layer, the processing method of described pretreating process includes polishing, distilled water cleans, ethanol solution is ultrasonically treated, polishing fluid is processed by shot blasting and activating solution carries out the combination of the one or more steps in the steps such as activation process.
Preferably, described electrode can be linear pattern, or in an advantageous embodiment, described electrode includes middle plane and the end turned up at described middle plane two ends to same direction, forms groove type；When the described positive electrode of groove type stacks with described negative electrode, its opening is relative, and described PTC-element is clipped between the described positive electrode of groove type and described negative electrode in the space formed.
It is highly preferred that be provided with wedge-shaped member and/or chamfering at the distal locations of described end, and by ring or bolt, positive pole and the wedge-shaped member of negative pole and/or chamfering are fixed.
In one preferred embodiment of the invention, also including the step arranging seal, the part of the PTC-element exposed between described seal near Shaozheng electrode, negative electrode seals；And two ends and/or the both sides of described PTC heating are sealed by the most described plastic seal.
In the method that the present invention is above-mentioned, described thermal insulation layer can be to arrange before step 1, it is also possible to is after step 1, arranges before step 2.
In a kind of preferred embodiment of preparation method described in first aspect of the present invention, also include:
Step 3, installs housing outside the electric heat-producing machine of step 2 preparation.
The second aspect of the invention is to provide a kind of electricity heat-producing machine, and described electricity heat-producing machine includes at least one PTC heating, fin；Described PTC heating includes positive and negative electrode and the PTC-element between positive and negative electrode, and described fin is positioned between the outer surface of electrode, and described electrode and fin and is provided with thermal insulation layer.
Preferably, described electrode can be linear pattern, or, in a kind of preferred embodiment described in second aspect of the present invention, described positive pole and described negative pole all include middle plane and/or the end turned up at described middle plane two ends to same direction, form groove type；When the described positive electrode of groove type stacks with described negative electrode, its opening is relative, and described PTC heating is clipped between the described positive electrode of groove type and described negative electrode in the space formed.
Preferably, described positive electrode and the both-side ends of negative electrode all comprise at least one clamping structure, and described clamping structure can be one or more in wedge shape, arc, quadrangle, polygon or chamfering, and preferably wedge shape or chamfering structure.
Preferably, described PTC heating also includes fixture, and described fixture can be one or more in elastic rubber ring or plastic hoop, bolt etc., for being fixed by the clamping structure of described positive and negative electrode.
Preferably, described electricity heat-producing machine also includes seal, and the part of the PTC-element exposed between described seal near Shaozheng negative electrode seals；More preferably by PTC electric heating element both ends and side seal.
As a preferred embodiment of the present invention, described electricity heat-producing machine includes that multiple PTC heating and multiple fin, described PTC heating and fin are arranged alternately.
Preferably, described electricity heat-producing machine also includes that housing, described fin and described PTC heating are respectively positioned on inside described housing.
It is highly preferred that also include at least one fixing hole on described housing, described fixed hole position is in the both sides of described housing.
Preferably, described electricity heat-producing machine also includes at least one conductive interface, and wire is connected with described positive electrode and described negative electrode by described interface.
Preferably, described connecting portion arranging the contact that is electrically connected, positive electrode/or negative electrode are linked together by wire by described tie point.
Preferably, described electricity heat-producing machine does not include metal sleeve.
In foregoing of the present invention, in case of no particular description: the surface that described electrode contacts with PTC-element is inner surface, the surface relative with inner surface is outer surface；Being inner surface with the surface of the radiating fin of electrode contact, the one side relative with inner surface is outer surface；Described electrode can be directly contact with contacting of fin, it is also possible to is that interval has described thermal insulation layer and/or binding agent；Described electrode includes positive pole and negative pole；Electricity of the present invention heats has identical implication with electrical heating, each means and converts electrical energy into heat energy.
It should be appreciated that in present aspect foregoing, between various aspects and various preferred embodiment, can be combined by those skilled in the art are unrestricted, and described combination is the most within the scope of the present invention.
The electric heat-producing machine that the present invention provides, does not use the aluminum casing in routine techniques, has not only saved cost, and decreased the thermal resistance of aluminum casing intermediate link, improve heat exchange efficiency, add volumetric power density.
Electricity heat-producing machine described herein, can be used for known electric heating system or place, electricity heat-producing machines as various in air-conditioning, electric heater, dryer etc..
Accompanying drawing explanation
Accompanying drawing of the present invention with
CN201410348403.5
Accompanying drawing identical.
Fig. 1 is the PTC heating cross section structure schematic diagram of prior art；
Fig. 2 is PTC heating structural representation in an embodiment of the present invention；
Fig. 3 is PTC heating structural representation in another kind embodiment of the present invention；
Fig. 4 is one electricity heat-producing machine structural representation of the present invention；
Fig. 5 is a kind of electricity heat-producing machine structural representation that the present invention installs housing additional；
Wherein, 1-PTC element；2-positive pole；3-thermal insulation layer；4-seal；5-negative pole；6-aluminium flat conduit；7-heat conductive silica gel；8-fin；9-PTC heating；10-electricity of the present invention heat-producing machine；20-housing.
Detailed description of the invention
Embodiment
1
As in figure 2 it is shown, the PTC heating schematic diagram provided for the application, upper and lower positive pole 2 and the negative pole 5 of being respectively of PTC-ceramic sheet (PTC-element) 1, positive pole 2 and negative pole 5 respectively linear structure, material is stainless steel.
Electrode outer surface spraying is provided with coating insulating heat-conductive Al2O3Ceramic layer 3.
In Fig. 4, PTC heating intersects with aluminum radiating fin (fin) 8 and stacks, and in Fig. 5, outside is housing 20, housing 20 is provided with and is conductively connected mouth, wire pass through described in be conductively connected mouth positive and negative electrode linked together with external power source.The internal intersection with radiating fin 8 for PTC heating 9 stacks the PTC electricity heat-producing machine 10 of formation.
Embodiment
2
First, pretreatment positive electrode and negative electrode, with reference to embodiment 1, by pretreated cuboid positive pole 2 and negative pole 5 and PTC-ceramic sheet 1 superposition, PTC-ceramic sheet 1 is between positive pole 2 and negative pole 5.Positive and negative electrode material is stainless steel.
As it is shown on figure 3, electrode is " Qian " type groove structure, forming cavity between two electrodes, PTC-ceramic sheet 1 is placed in described cavity.Being provided with inverted triangle (wedge shape) clamping structure at the tip of electrode end, elastic rubber ring or plastic hoop are nested with on described clamping structure, are fixed by positive and negative electrode.
Wherein, at the spray insulation heat conduction Al not contacted with PTC-ceramic sheet 1 of positive and negative electrode 2,52O3Ceramic layer 3, and use end seal 4 to be sealed at PTC heating 9 two ends.
And at thermal insulation layer surface smear heat conductive silica gel, superposition radiating fin 8.As shown in Figure 4, radiating fin 8 is arranged alternately with PTC heating 9, forms more volume electricity heat-producing machine.
As it is shown in figure 5, install housing 20 additional outside electricity heat-producing machine 10, can play a protective role.
Embodiment
1
With
2
The detection of spraying ceramic coat performance is as follows:
Insulaion resistance>20 M Ω, electrical strength 1800VDC@1min, electric leakage<2mA
Temperature tolerance :-45 to 260 DEG C
Thermal conductivity: 20-30 W/mK
Thermal coefficient of expansion: 8.0
Embodiment
3
With reference to embodiment 1 or 2, positive and negative electrode 2,5 and PTC-ceramic sheet 1 are fixed, polyimides (PI) film is tiled and sticks on electrode outer surface.
At a coated with adhesive (heat conductive silica gel 7 as shown in Figure 4) of radiating fin 8 with electrode contact, radiating fin 8 is bonded to electrode surface.
Embodiment
4
With reference to embodiment 1 or 2, positive and negative electrode 2,5 and PTC-ceramic sheet 1 are fixed, makes PTC heating, with polyimide film, described PTC heating is wrapped up (i.e. using wrapped mode), only expose two ends for connecting outer lead.
At a coated with adhesive (heat conductive silica gel 7 as shown in Figure 4) of radiating fin 8 with electrode contact, radiating fin 8 is bonded to electrode surface.
Being described in detail the specific embodiment of the present invention above, but it is intended only as example, the present invention is not restricted to particular embodiments described above.To those skilled in the art, any equivalent modifications carrying out the present invention and replacement are the most all among scope of the invention.Therefore, the impartial conversion made without departing from the spirit and scope of the invention and amendment, all should contain within the scope of the invention.
Claims (10)
1. an electric heat-producing machine, it is characterised in that described electricity heat-producing machine includes at least one PTC heating, fin；Described PTC heating includes positive and negative electrode and the PTC-element between positive and negative electrode, and described fin is positioned between the outer surface of electrode, and described fin and electrode and is provided with thermal insulation layer；The method arranging described thermal insulation layer is coating；
Wherein, thermal insulation layer is arranged on the outer surface of electrode, then fin is bonded to electrode outer surface；Or, thermal insulation layer is arranged on fin with electrode contact one side, then fin is bonded to electrode outer surface.
2. an electric heat-producing machine, it is characterised in that described electricity heat-producing machine includes at least one PTC heating, fin；Described PTC heating includes positive and negative electrode and the PTC-element between positive and negative electrode, and described fin is positioned between the outer surface of electrode, and described fin and electrode and is provided with thermal insulation layer；The method arranging described thermal insulation layer is coating；The material of described fin is the metal of any good heat conductivity.
3. the preparation method of an electric heat-producing machine, it is characterised in that described method comprises the steps:
Step 1, stacks by positive electrode, PTC-element and negative electrode according to described order and fixes, and forms PTC heating；
Step 2, makes fin contact with at least one electrode outer surface, forms electricity heat-producing machine；
Wherein, it is provided with thermal insulation layer between described fin and electrode；The method arranging described thermal insulation layer is coating；The material of described fin is stainless steel or aluminium or aluminium alloy.
4. the preparation method of an electric heat-producing machine, it is characterised in that described method comprises the steps:
Step 1, stacks by positive electrode, PTC-element and negative electrode according to described order and fixes, and forms PTC heating；
Step 2, makes fin contact with at least one electrode outer surface, forms electricity heat-producing machine；
Wherein, it is provided with thermal insulation layer between described fin and electrode；The method arranging described thermal insulation layer is coating；
Wherein, in step 2: thermal insulation layer is arranged on the outer surface of electrode, then fin is bonded to electrode outer surface；Or, in step 2: thermal insulation layer is arranged on fin with electrode contact one side, then fin is bonded to electrode outer surface.
The preparation method of the electric heat-producing machine described in electricity heat-producing machine the most according to claim 1 and 2 or claim 3 or 4, it is characterized in that, described thermal insulation layer material is one or more in pottery, Teflon, polyimides, Teflon doped with ceramic powders, glass, silica gel, polyethylene, polypropylene etc..
The preparation method of the electric heat-producing machine described in electricity heat-producing machine the most according to claim 1 and 2 or claim 3 or 4, it is characterized in that, including multiple PTC heatings and multiple fin, described PTC heating is arranged alternately with described fin, and fin is bonded in electrode outer surface；Wherein, between fin and electrode, thermal insulation layer it is provided with.
The preparation method of the electric heat-producing machine described in electricity heat-producing machine the most according to claim 1 and 2 or claim 3 or 4, it is characterised in that the method arranging described thermal insulation layer is spraying.
The preparation method of the electric heat-producing machine described in electricity heat-producing machine the most according to claim 1 and 2 or claim 3 or 4, it is characterised in that being provided with housing outside described electricity heat-producing machine, described PTC heating and fin are positioned at inside described housing.
The preparation method of the electric heat-producing machine described in electricity heat-producing machine the most according to claim 1 and 2 or claim 3 or 4, it is characterised in that also by bonding connection between described PTC heating and fin.
The preparation method of the electric heat-producing machine described in electricity heat-producing machine the most according to claim 1 and 2 or claim 3 or 4, it is characterized in that, described electricity heat-producing machine also includes seal, and the part of the PTC-element exposed between described seal near Shaozheng negative electrode seals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610295932.2A CN105933998A (en) | 2014-07-21 | 2014-07-21 | Electric heater and method for preparing same |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410348403.5A CN104144530B (en) | 2014-07-21 | 2014-07-21 | A kind of electricity heat-producing machine and preparation method thereof |
| CN201610295932.2A CN105933998A (en) | 2014-07-21 | 2014-07-21 | Electric heater and method for preparing same |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410348403.5A Division CN104144530B (en) | 2014-07-21 | 2014-07-21 | A kind of electricity heat-producing machine and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105933998A true CN105933998A (en) | 2016-09-07 |
Family
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Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410348403.5A Expired - Fee Related CN104144530B (en) | 2014-07-21 | 2014-07-21 | A kind of electricity heat-producing machine and preparation method thereof |
| CN201610317503.0A Expired - Fee Related CN105960031B (en) | 2014-07-21 | 2014-07-21 | A kind of electricity heat-producing machine and preparation method thereof |
| CN201610295932.2A Pending CN105933998A (en) | 2014-07-21 | 2014-07-21 | Electric heater and method for preparing same |
Family Applications Before (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410348403.5A Expired - Fee Related CN104144530B (en) | 2014-07-21 | 2014-07-21 | A kind of electricity heat-producing machine and preparation method thereof |
| CN201610317503.0A Expired - Fee Related CN105960031B (en) | 2014-07-21 | 2014-07-21 | A kind of electricity heat-producing machine and preparation method thereof |
Country Status (2)
| Country | Link |
|---|---|
| KR (1) | KR20170044658A (en) |
| CN (3) | CN104144530B (en) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20170223776A1 (en) * | 2014-07-21 | 2017-08-03 | Zhengxian Song | Electric heating device and preparation method therefor |
| CN104540247A (en) * | 2014-12-16 | 2015-04-22 | 江苏港星方能超声洗净科技有限公司 | Electric heater |
| CN107113919A (en) * | 2014-12-16 | 2017-08-29 | 宋正贤 | Electric heating device |
| CN106486437A (en) * | 2015-08-31 | 2017-03-08 | 谢彦君 | A kind of semi-conducting electrode single piece and chiller |
| CN106658775A (en) * | 2015-11-02 | 2017-05-10 | 谢彦君 | Application of organosilicon silica gel to PTC electric heater |
| CN105554924A (en) * | 2016-02-03 | 2016-05-04 | 苏州新业电子股份有限公司 | Positive temperature coefficient (PTC) heater with insulation coating layers and preparation method of PTC heater |
| CN206611600U (en) * | 2016-03-01 | 2017-11-03 | 谢彦君 | A kind of electric heating apparatus for water warming |
| CN106304429A (en) * | 2016-08-25 | 2017-01-04 | 安徽江淮松芝空调有限公司 | A kind of PTC heater structure |
| CN109677229A (en) * | 2017-10-18 | 2019-04-26 | 郑州宇通客车股份有限公司 | Heating device and frost removal, the vehicle for using the device |
| CN109677239A (en) * | 2017-10-18 | 2019-04-26 | 郑州宇通客车股份有限公司 | Driver's warming feet device and vehicle |
| CN110139404A (en) * | 2019-06-06 | 2019-08-16 | 山东德逸新能源汽车科技有限公司 | A kind of ptc heater and its production technology and the heater assembly with the ptc heater |
| CN110225605A (en) * | 2019-06-06 | 2019-09-10 | 上海奉天电子股份有限公司 | A kind of heating element for the PTC electric calorifie installation in electric vehicle |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN105960031A (en) | 2016-09-21 |
| CN105960031B (en) | 2019-03-22 |
| CN104144530B (en) | 2016-06-22 |
| KR20170044658A (en) | 2017-04-25 |
| CN104144530A (en) | 2014-11-12 |
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