CN111150118A - Electromagnetic induction heater, manufacturing method thereof and electronic cigarette - Google Patents
Electromagnetic induction heater, manufacturing method thereof and electronic cigarette Download PDFInfo
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- CN111150118A CN111150118A CN202010120832.2A CN202010120832A CN111150118A CN 111150118 A CN111150118 A CN 111150118A CN 202010120832 A CN202010120832 A CN 202010120832A CN 111150118 A CN111150118 A CN 111150118A
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- 230000005674 electromagnetic induction Effects 0.000 title claims abstract description 60
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 13
- 239000003571 electronic cigarette Substances 0.000 title claims abstract description 11
- 239000010410 layer Substances 0.000 claims abstract description 149
- 230000008878 coupling Effects 0.000 claims abstract description 49
- 238000010168 coupling process Methods 0.000 claims abstract description 49
- 238000005859 coupling reaction Methods 0.000 claims abstract description 49
- 239000011241 protective layer Substances 0.000 claims abstract description 8
- 230000001681 protective effect Effects 0.000 claims description 9
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 4
- 238000003466 welding Methods 0.000 claims description 4
- 229910052697 platinum Inorganic materials 0.000 claims description 3
- 238000005245 sintering Methods 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 abstract description 18
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 14
- 238000010586 diagram Methods 0.000 description 8
- 239000002699 waste material Substances 0.000 description 5
- 230000009471 action Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000006698 induction Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 238000009529 body temperature measurement Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The invention discloses an electromagnetic induction heater, which comprises a support body for placing an object to be heated and a thick film circuit layer; the thick film circuit layer sequentially comprises an insulating coupling layer, a conductive coil layer, a bonding pad and a covering protective layer from bottom to top; the bonding pads are arranged at two ends of the conductive coil layer and are connected with an external circuit through leads; the thick film circuit layer is fixedly connected to the surface of the supporting body through the insulating coupling layer. According to the invention, the conductive coil layer which flows with alternating current during working is directly and tightly connected with the supporting body for containing the object to be heated through the insulating coupling layer, so that good thermal coupling between the conductive coil layer and the supporting body is realized, resistance heating generated when the alternating current flows through the conductive coil layer can be directly transmitted to the supporting body, the resistance heating of the coil in the prior art is prevented from being cooled and dissipated in the air, and resources are saved. The invention also provides a manufacturing method of the electromagnetic induction heater with the beneficial effects and the electronic cigarette.
Description
Technical Field
The invention relates to the field of electromagnetic heating, in particular to an electromagnetic induction heater, a manufacturing method thereof and an electronic cigarette.
Background
The electromagnetic induction heating devices in the current market all adopt the scheme that an electromagnetic coil is separated from a heated body for placing an object to be heated, namely, a copper or other metal coil is wound into a cylindrical or planar coil in advance, and then the heated body (a magnetic conductive object) is placed in the middle of the coil (in the case of a columnar coil) or is horizontally placed on the upper part or the lower part of the coil (in the case of a planar coil). The alternating current that the induction heating power produced passes through inductor (being the coil) and produces alternating magnetic field, and magnetic permeability object (being heated body) is arranged in its magnetic field scope and is cut the alternating magnetic line of force to produce alternating current (being the vortex) inside the object, the vortex makes the high-speed random motion of the atom inside the object, and the atom collides each other, rubs and produces heat energy, thereby heats the article, through turning into the magnetic energy with the electric energy promptly, makes by the heating body induction magnetic energy and heating.
However, since the coil itself has a certain resistance, the alternating current passing through the coil is not converted into magnetic energy, but a part of the energy is consumed by the resistance of the coil itself to become heat energy, and since the coil is not in close contact with the heated body and there is a large thermal resistance barrier in the middle, such as air, etc., the part of the heat energy cannot be directly utilized, and thus the heat energy can only be dissipated by cooling, so that the energy utilization rate is reduced, and the waste of resources is caused.
Therefore, a method for fully utilizing the energy generated by the self-resistance of the coil is found, and the energy utilization efficiency of the electromagnetic induction heating device is improved, which is a problem to be solved by the technical personnel in the field.
Disclosure of Invention
The invention aims to provide an electromagnetic induction heater, a manufacturing method thereof and an electronic cigarette, and aims to solve the problems that in the prior art, the self resistance heating of an electrified coil cannot be effectively utilized, the energy utilization rate is low, and energy is wasted.
In order to solve the above technical problems, the present invention provides an electromagnetic induction heater, comprising a support body for placing an object to be heated and a thick film circuit layer;
the thick film circuit layer sequentially comprises an insulating coupling layer, a conductive coil layer, a bonding pad and a covering protective layer from bottom to top;
the bonding pads are arranged at two ends of the conductive coil layer and are connected with an external circuit through leads;
the thick film circuit layer is fixedly connected to the surface of the supporting body through the insulating coupling layer.
Alternatively, in the electromagnetic induction heater, the thick film circuit layer is provided on an outer side of the support body which is not in contact with the object to be heated.
Optionally, in the electromagnetic induction heater, the electromagnetic induction heater is a planar heater or a pillar heater.
Optionally, in the electromagnetic induction heater, the electromagnetic induction heater further comprises a temperature sensor;
the temperature sensor is arranged on the thick film circuit layer.
Optionally, in the electromagnetic induction heater, the temperature sensor is at least one of a negative temperature coefficient sensor or a positive temperature coefficient sensor or a platinum resistance sensor.
Optionally, in the electromagnetic induction heater, the insulating coupling layer is made of the same material as the protective cover layer.
Optionally, in the electromagnetic induction heater, the insulating coupling layer and the covering protection layer are both dielectric paste layers.
An electronic cigarette comprising an electromagnetic induction heater as claimed in any one of the above.
A method of making an electromagnetic induction heater comprising:
arranging an insulating coupling layer on the surface of the support body;
arranging a conductive coil layer on the surface of the insulating coupling layer;
arranging bonding pads at two ends of the conductive coil layer, and welding a lead on the bonding pads;
and arranging a covering protective layer on the surface of the conductive coil layer to obtain the electromagnetic induction heater.
Optionally, in the method for manufacturing an electromagnetic induction heater, the insulating coupling layer, the conductive coil layer, and the protective cover layer are all formed by thick film printing paste and then sintering at a high temperature.
The invention provides an electromagnetic induction heater, which comprises a supporting body for placing an object to be heated and a thick film circuit layer; the thick film circuit layer sequentially comprises an insulating coupling layer, a conductive coil layer, a bonding pad and a covering protective layer from bottom to top; the bonding pads are arranged at two ends of the conductive coil layer and are connected with an external circuit through leads; the thick film circuit layer is fixedly connected to the surface of the supporting body through the insulating coupling layer. According to the invention, the conductive coil layer which flows with alternating current during working is directly and tightly connected with the support body for containing the object to be heated through the insulating coupling layer, so that good thermal coupling between the conductive coil layer and the support body is realized, resistance heating generated when the alternating current flows through the conductive coil layer can be directly transmitted to the support body, the problem that the resistance heating of the coil in the prior art is cooled and dissipated in the air, waste is caused, the energy utilization rate is improved, and resources are saved. The invention also provides a manufacturing method of the electromagnetic induction heater with the beneficial effects and the electronic cigarette.
Drawings
In order to more clearly illustrate the embodiments or technical solutions of the present invention, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.
FIG. 1 is a schematic partial structural view of an embodiment of an electromagnetic induction heater provided in the present invention;
FIG. 2 is a schematic structural diagram of another embodiment of an electromagnetic induction heater provided by the present invention;
FIG. 3 is a schematic structural diagram of another embodiment of an electromagnetic induction heater provided by the present invention;
FIG. 4 is a schematic partial structural view of yet another embodiment of an electromagnetic induction heater provided in accordance with the present invention;
fig. 5 is a schematic flow chart of a method for manufacturing an electromagnetic induction heater according to an embodiment of the present invention.
Detailed Description
In order that those skilled in the art will better understand the disclosure, the invention will be described in further detail with reference to the accompanying drawings and specific embodiments. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The core of the invention is to provide an electromagnetic induction heater, a partial structure schematic diagram of one embodiment of which is shown in fig. 1, and is called as the first embodiment, and the electromagnetic induction heater comprises a support body 100 for placing an object to be heated and a thick film circuit layer;
the thick film circuit layer sequentially comprises an insulating coupling layer 201, a conductive coil layer 202, a bonding pad 204 and a covering protection layer 203 from bottom to top;
the bonding pads 204 are disposed at two ends of the conductive coil layer 202 and connected to an external circuit through leads 300;
the thick film circuit layer is fixedly connected to the surface of the supporting body 100 through the insulating coupling layer 201.
The combination of the insulating coupling layer 201 and the protective cover 203 completely encases the conductive coil layer 202.
It should be noted that, when the supporting frame 100 is an insulator and completely encloses the electromagnetic induction heater, the insulating coupling layer 201 and the covering protection layer 203 are not necessarily required structures and may not be required.
In addition, the connection of the conductive coil to the outside, in addition to through the lead, may also use contacts.
In addition, the insulating coupling layer 201 is made of the same material as the covering protection layer 203; the molecule combination is tighter among the same materials, the adhesive force is stronger, the adhesion is firmer, the integral strength of the device can be improved, and the use reliability is improved. Furthermore, the insulating coupling layer 201 and the covering protection layer 203 are dielectric paste layers; the medium slurry layer mainly comprises glass powder, resin and an organic solvent, and has the functions of water resistance, moisture resistance and insulation.
Fig. 1 is a partial sectional view of the electromagnetic induction heater.
Of course, in order to meet the basic requirement of electromagnetic induction heating, the support body 100 is made of magnetic conductive material.
Also, the dielectric coupling layer 201 has a thickness in a range from 2 microns to 200 microns, inclusive, such as any of 10.0 microns, 123.2 microns, or 200.0 microns; the conductive coil layer 202 has a thickness in a range of 5 microns to 20 microns, inclusive, such as any of 5.0 microns, 15.3 microns, or 20.0 microns; the protective cover 203 has a thickness in a range from 2 microns to 200 microns, inclusive, such as any of 10.0 microns, 103.0 microns, or 200.0 microns; the pad 204 has a thickness in a range from 5 microns to 20 microns, inclusive, such as any of 5.0 microns, 10.0 microns, or 20.0 microns. The above parameters are the best values obtained after theoretical calculation and actual inspection, and of course, in actual use, the parameters can be adjusted correspondingly according to different voltages and powers.
The electromagnetic induction heater provided by the invention comprises a support body 100 for placing an object to be heated and a thick film circuit layer; the thick film circuit layer sequentially comprises an insulating coupling layer 201, a conductive coil layer 202, a bonding pad 204 and a covering protection layer 203 from bottom to top; the bonding pads 204 are disposed at two ends of the conductive coil layer 202 and connected to an external circuit through leads 300; the thick film circuit layer is fixedly connected to the surface of the supporting body 100 through the insulating coupling layer 201. According to the invention, the conductive coil layer 202 which flows with alternating current during working is directly and tightly connected with the support body 100 for containing an object to be heated through the insulating coupling layer 201, so that good thermal coupling between the conductive coil layer 202 and the support body is realized, resistance heating generated when the alternating current flows through the conductive coil layer 202 can also be directly transmitted to the support body 100, the problem that the resistance heating of the coil in the prior art is cooled and dissipated in the air, so that the waste is caused, the energy utilization rate is improved, and the resource is saved.
On the basis of the first embodiment, the shape of the electromagnetic induction heater is further limited to obtain a second embodiment, and the structural schematic diagrams of the two shapes respectively correspond to fig. 2 and 3, and the second embodiment comprises a support body 100 for placing an object to be heated and a thick film circuit layer;
the thick film circuit layer sequentially comprises an insulating coupling layer 201, a conductive coil layer 202, a bonding pad 204 and a covering protection layer 203 from bottom to top;
the bonding pads 204 are disposed at two ends of the conductive coil layer 202 and connected to an external circuit through leads 300;
the thick film circuit layer is fixedly connected to the surface of the supporting body 100 through the insulating coupling layer 201;
the electromagnetic induction heater is a planar heater or a column heater.
The present embodiment is different from the foregoing embodiments in that the present embodiment specifically defines the shape of the electromagnetic induction heater, and the rest of the structure is the same as that of the foregoing embodiments, and is not repeated herein.
When the object to be heated is a solid, the support body 100 may be in the form of a shelf, a flat mesh, or the like, and when the object to be heated is a liquid, the support body 100 may be in the form of an open container, or the like. The present embodiment solves most of the application scenarios of the object to be heated by providing two specific shapes, wherein the structural schematic diagram of the pillar-type heater is shown in fig. 2, and the structural schematic diagram of the planar-type heater is shown in fig. 3, and it should be noted that, for the convenience of viewing the structure of the conductive coil layer 202, the protective cover layer 203 in fig. 2 and 3 is not shown.
Particularly, the thick film circuit layer is disposed on the outer side of the support body 100 not contacting with the object to be heated, and if the support body 100 is a cylindrical support body 100 and the liquid inside needs to be heated, the thick film circuit layer should be disposed on the outer side of the cylindrical wall, thereby further avoiding the situation that the normal use is influenced by the loss and falling off of the protective cover 203 in repeated use, and improving the stability and safety of the device operation.
On the basis of the second embodiment, the shape of the electromagnetic induction heater is further improved to obtain a third embodiment, a partial structure schematic diagram of which is shown in fig. 4, and which includes a support body 100 for placing an object to be heated and a thick film circuit layer;
the thick film circuit layer sequentially comprises an insulating coupling layer 201, a conductive coil layer 202, a bonding pad 204 and a covering protection layer 203 from bottom to top;
the bonding pads 204 are disposed at two ends of the conductive coil layer 202 and connected to an external circuit through leads 300;
the thick film circuit layer is fixedly connected to the surface of the supporting body 100 through the insulating coupling layer 201;
the electromagnetic induction heater is a planar heater or a vertical column heater;
the electromagnetic induction heater further comprises a temperature sensor 400;
the temperature sensor 400 is disposed on the thick film circuit layer 201.
The difference between the present embodiment and the above embodiments is that the temperature sensor 400 is added to the electromagnetic induction heater in the present embodiment, and the rest of the structure is the same as that of the above embodiments, and is not described herein again.
In the present embodiment, the temperature sensor 400 is disposed on the dielectric coupling layer 201, and due to the characteristics of high integration and high power density of the thick film circuit, the distance between the temperature sensor 400 and the supporting body 100 for accommodating the object to be heated is only tens of micrometers to hundreds of micrometers, thereby further improving the accuracy of temperature measurement.
Further, the temperature sensor 400 is at least one of a negative temperature coefficient sensor or a positive temperature coefficient sensor or a platinum resistance sensor.
The invention also provides an electronic cigarette, which comprises the electromagnetic induction heater. The electromagnetic induction heater provided by the invention comprises a support body 100 for placing an object to be heated and a thick film circuit layer; the thick film circuit layer sequentially comprises an insulating coupling layer 201, a conductive coil layer 202, a bonding pad 204 and a covering protection layer 203 from bottom to top; the bonding pads 204 are disposed at two ends of the conductive coil layer 202 and connected to an external circuit through leads 300; the thick film circuit layer is fixedly connected to the surface of the supporting body 100 through the insulating coupling layer 201. According to the invention, the conductive coil layer 202 which flows with alternating current during working is directly and tightly connected with the support body 100 for containing an object to be heated through the insulating coupling layer 201, so that good thermal coupling between the conductive coil layer 202 and the support body is realized, resistance heating generated when the alternating current flows through the conductive coil layer 202 can also be directly transmitted to the support body 100, the problem that the resistance heating of the coil in the prior art is cooled and dissipated in the air, so that the waste is caused, the energy utilization rate is improved, and the resource is saved.
The invention also provides a method for manufacturing the electromagnetic induction heater, the flow schematic diagram of which is shown in fig. 5, comprising the following steps:
step S101: and arranging an insulating coupling layer on the surface of the support body.
Step S102: and arranging a conductive coil layer on the surface of the insulating coupling layer.
Step S103: and arranging bonding pads at two ends of the conductive coil layer, and welding a lead on the bonding pads.
Step S104: and arranging a covering protective layer on the surface of the conductive coil layer to obtain the electromagnetic induction heater.
Furthermore, the insulating coupling layer, the conductive coil layer and the covering protection layer are all arranged in a mode of thick film printing paste and then high-temperature sintering.
The invention provides a method for manufacturing an electromagnetic induction heater, which comprises the steps of arranging an insulating coupling layer on the surface of a support body; arranging a conductive coil layer on the surface of the insulating coupling layer; arranging bonding pads at two ends of the conductive coil layer, and welding a lead on the bonding pads; and arranging a covering protective layer on the surface of the conductive coil layer to obtain the electromagnetic induction heater. According to the invention, the conductive coil layer which flows with alternating current during working is directly and tightly connected with the support body for containing the object to be heated through the insulating coupling layer, so that good thermal coupling between the conductive coil layer and the support body is realized, resistance heating generated when the alternating current flows through the conductive coil layer can be directly transmitted to the support body, the problem that the resistance heating of the coil in the prior art is cooled and dissipated in the air, waste is caused, the energy utilization rate is improved, and resources are saved.
The embodiments are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same or similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.
It is to be noted that, in the present specification, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The electromagnetic induction heater, the manufacturing method thereof and the electronic cigarette provided by the invention are described in detail above. The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
Claims (10)
1. An electromagnetic induction heater is characterized by comprising a support body for placing an object to be heated and a thick film circuit layer;
the thick film circuit layer sequentially comprises an insulating coupling layer, a conductive coil layer, a bonding pad and a covering protective layer from bottom to top;
the bonding pads are arranged at two ends of the conductive coil layer and are connected with an external circuit through leads;
the thick film circuit layer is fixedly connected to the surface of the supporting body through the insulating coupling layer.
2. The electromagnetic induction heater according to claim 1, wherein said thick film circuit layer is provided on an outer side of said supporting body which is not in contact with said object to be heated.
3. The electromagnetic induction heater of claim 1, wherein said electromagnetic induction heater is a planar heater or a pillar heater.
4. The electromagnetic induction heater of claim 1, further comprising a temperature sensor;
the temperature sensor is arranged on the thick film circuit layer.
5. The electromagnetic induction heater of claim 1, wherein said temperature sensor is at least one of a negative temperature coefficient sensor or a positive temperature coefficient sensor or a platinum resistance sensor.
6. The electromagnetic induction heater of claim 1, wherein said dielectric coupling layer is the same material as said protective cover layer.
7. The electromagnetic induction heater of claim 6, wherein said dielectric coupling layer and said protective cover layer are dielectric paste layers.
8. An electronic cigarette, characterized in that the electronic cigarette comprises an electromagnetic induction heater according to any one of claims 1 to 7.
9. A method of making an electromagnetic induction heater, comprising:
arranging an insulating coupling layer on the surface of the support body;
arranging a conductive coil layer on the surface of the insulating coupling layer;
arranging bonding pads at two ends of the conductive coil layer, and welding a lead on the bonding pads;
and arranging a covering protective layer on the surface of the conductive coil layer to obtain the electromagnetic induction heater.
10. The electromagnetic induction heater of claim 9, wherein said insulating coupling layer, said conductive coil layer and said protective cover layer are formed by thick film printing paste followed by high temperature sintering.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010120832.2A CN111150118A (en) | 2020-02-26 | 2020-02-26 | Electromagnetic induction heater, manufacturing method thereof and electronic cigarette |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010120832.2A CN111150118A (en) | 2020-02-26 | 2020-02-26 | Electromagnetic induction heater, manufacturing method thereof and electronic cigarette |
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| CN111150118A true CN111150118A (en) | 2020-05-15 |
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| CN202010120832.2A Pending CN111150118A (en) | 2020-02-26 | 2020-02-26 | Electromagnetic induction heater, manufacturing method thereof and electronic cigarette |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111465131A (en) * | 2020-05-20 | 2020-07-28 | 株洲利德英可电子科技有限公司 | Temperature measurement feedback electromagnetic induction heating body based on thick film technology |
| CN113397228A (en) * | 2021-07-07 | 2021-09-17 | 株洲利德英可电子科技有限公司 | Electronic cigarette heating pipe, manufacturing method thereof and electronic cigarette |
| WO2023011554A1 (en) * | 2021-08-04 | 2023-02-09 | 深圳市合元科技有限公司 | Aerosol generating apparatus, heater for aerosol generating apparatus, and preparation method |
| KR20230048981A (en) * | 2021-10-05 | 2023-04-12 | 주식회사 이노아이티 | Induction heating apparatus using flexible printed circuit board |
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| KR20140036744A (en) * | 2012-09-18 | 2014-03-26 | 에버맥스(주) | Apparatus with tempearature-measuring sensor using electromagnetic induction heating |
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| CN111465131A (en) * | 2020-05-20 | 2020-07-28 | 株洲利德英可电子科技有限公司 | Temperature measurement feedback electromagnetic induction heating body based on thick film technology |
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