CN206100487U - Thick film heating protection device - Google Patents
Thick film heating protection device Download PDFInfo
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- CN206100487U CN206100487U CN201621108878.8U CN201621108878U CN206100487U CN 206100487 U CN206100487 U CN 206100487U CN 201621108878 U CN201621108878 U CN 201621108878U CN 206100487 U CN206100487 U CN 206100487U
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Abstract
The utility model discloses a thick film heating protection device, including the thick film body that generates heat, the thick film generates heat the body and includes the base plate and set up insulating layer, thick film heating circuit, conducting layer, the overburden on the base plate, and thick film heating circuit includes first heating trace and second heating trace, and the conducting layer includes first electrically conductive piece, and the temperature controller, the temperature controller is through welding on tin welding sets up first electrically conductive on the base plate, with the thick film heating circuit's on the base plate first heating trace and the series connection of second heating trace. The temperature is moved in the reservation that so is higher than the temperature controller when the temperature of the board that generate heat, this moment temperature controller disconnect, potential safety hazard that the rapid elimination dry combustion method brought, and generate heat the board temperature when being higher than the melting point temperature of soldering tin, soldering tin melts for thereby the disconnection of first heating trace and second heating trace further guarantees the dry combustion method abnormal conditions and in time eliminates, and that improves thick film heating protection device prevents dry combustion method performance, reliability and factor of safety, and its simple structure, low in manufacturing cost.
Description
Technical field
The utility model is related to Heating guard engineering device technique field, particularly a kind of thick-film heating protection device.
Background technology
Thick-film heating element is that, using thick film screen typography, the printing insulation on the substrate such as stainless steel or ceramics is situated between
The materials such as matter, adding thermal resistance, conductor, glass protection slurry, afterwards by the heating element of high temperature sintering, its is extensive
It is applied to household electrical appliance, equipment etc. to add in hot product.Compared with traditional heating (heating wire), thick film heating has work(
Rate density is big, it is fast to start fast, firing rate, and element is in Boping planar, can also be made into curved surface, thus with small volume, be easy to
The advantages of installation, energy-conservation.And at present the anti-dry protection structure in thick-film heating element is usually single protection mechanism, anti-dry can
Low by property, only a few is using double protection mechanisms, and generally structure is complex, safeguards that replacing not enough facilitates, and manufactures and use
High cost.
Utility model content
Based on this, the utility model is the defect for overcoming prior art, there is provided a kind of anti-dry performance is good, reliable operation
Property it is high, simple structure and manufacture and thick-film heating protection device that use cost is low.
Its technical scheme is as follows：
A kind of thick-film heating protection device, including：
Thick film heating body, the thick film heating body includes substrate and the insulating barrier, the thick film that are arranged on the substrate
Heating circuit, conductive layer, coating, the thick film heating circuit includes the first heating track and the second heating track, described to lead
Electric layer includes the first electric-conductor；And
Temperature controller, the temperature controller is welded on the first electric-conductor being arranged on the substrate, by the base by scolding tin
First heating track of the thick film heating circuit on plate and the second heating track are connected.
Wherein in one embodiment, first electric-conductor includes the first electric conductor and the second electric conductor, the temperature control
Device includes the temperature control main body being arranged on the thick film heating circuit and the first terminal being electrically connected with the temperature control main body
And Second terminal, the first terminal is connected by scolding tin with first electric conductor, and the Second terminal is by scolding tin and institute
State the connection of the second electric conductor.
Wherein in one embodiment, first heating track and second heating track are in roundabout shape structure.
Wherein in one embodiment, the temperature control main body is fitted tightly over the surface of the coating.
Wherein in one embodiment, the conductive layer also includes being arranged on the substrate to be used to connect the second of power supply
Electric-conductor, second electric-conductor is connected with the thick film heating circuit.
Wherein in one embodiment, second electric-conductor is additionally provided with temperature-sensitive temperature resistance device, the temperature-sensitive temperature control
Resistance device connects external control circuit.
The beneficial effects of the utility model are：
Above-mentioned thick-film heating protection device is by being respectively welded at the first terminal and Second terminal of the temperature controller
On first electric conductor and the second electric conductor of the first electric-conductor, by the first heat-generating track of thick film heating circuit and the second heating mark
Line electrical series, so that when thick-film heating protection structure is in the dry-fire condition of non-normal working, the temperature of heating board
Higher than the predetermined action temperature of temperature controller, now temperature controller is disconnected, quick to eliminate the potential safety hazard that dry combustion method brings, and while
When action failure or abnormal reaction occurs in temperature controller, the temperature controller and the first electric-conductor are connected by scolding tin, when sending out
When hot plate temperature is higher than the melting temperature of scolding tin, scolding tin melts, and temperature controller comes off so that the first heating track and second plus heated spot
Line is disconnected so as to be further ensured that the timely elimination of dry combustion method abnormal conditions, by above-mentioned dual protection mechanism, can be greatly improved
The anti-dry performance of thick-film heating protection device, while the reliability and safety coefficient of its work are improved, and its simple structure, system
Make and use cost is low, temperature-sensitive temperature resistance device is set in addition, connect external control circuit, preferably realize that break-make protection is made
With.
Description of the drawings
Fig. 1 is the structural representation of the thick-film heating protection device described in the utility model embodiment；
Fig. 2 is the side view of the thick film heating body described in the utility model embodiment；
Fig. 3 is the structural representation of the temperature controller described in the utility model embodiment；
Fig. 4 is the structural representation of the thick film circuit trace described in the utility model embodiment.
Description of reference numerals：
100th, thick film heating body, 120, substrate, 140, thick film heating circuit, the 141, first heating track, 142 second plus
Heated spot line, 160, insulating barrier, 180, coating, 190, conductive layer, the 192, first electric-conductor, 192a, the first electric conductor, 192b,
Second electric conductor, 300, temperature controller, 320, temperature control main body, 340, the first terminal, 360, Second terminal, the 400, second electric-conductor,
420th, temperature-sensitive temperature resistance device.
Specific embodiment
It is below in conjunction with accompanying drawing and specifically real to make the purpose of this utility model, technical scheme and advantage become more apparent
Mode is applied, the utility model is described in further detail.It should be appreciated that specific embodiment described herein
Only to explain the utility model, protection domain of the present utility model is not limited.
Such as Fig. 1, a kind of shown, thick-film heating protection structure, including thick film heating body 100, the thick film heating body
100 include substrate 120 and be arranged on the substrate 120 insulating barrier 160, thick film heating circuit 140, conductive layer 190 and cover
Cap rock 180, the thick film heating circuit 140 includes the first heating track 141 and the second heating track 142, the conductive layer 190
Including the first electric-conductor 192；And temperature controller 300, the temperature controller 300 by scolding tin welding be arranged on the substrate 120
On first electric-conductor 192, by first heating track 141 and second plus heated spot of the thick film heating circuit 140 on the substrate 120
Line 142 is connected.So that when thick-film heating protection structure is in the dry-fire condition of non-normal working, the temperature of heating board is high
In the predetermined action temperature of temperature controller, now temperature controller is disconnected, quick to eliminate the potential safety hazard that dry combustion method brings, and while is worked as
When action failure or abnormal reaction occurs in temperature controller, the temperature controller is connected with the first electric-conductor by scolding tin, works as heating
When plate temperature is higher than the melting temperature of scolding tin, scolding tin melts, and temperature controller comes off so that the first heating track and the second heating track
Disconnect so as to be further ensured that the timely elimination of dry combustion method abnormal conditions, by above-mentioned dual protection mechanism, thickness can be greatly improved
The anti-dry performance of film heated protective structure, while the reliability and safety coefficient of its work are improved, and its simple structure, manufacture
And use cost is low.
Such as Fig. 1, shown in Fig. 2, aforesaid substrate 120 is metallic plate, thus possess heat transfer efficiency it is high the characteristics of；The one of metallic plate
Side has needs heated water body or runner etc.；In one embodiment, the substrate 120 is laterally convexly equipped with projection outward along one
Portion.Lug boss is the rectangular cam with certain altitude, is arranged at the opposite side away from water body or runner, and metallic plate design is made
It is made nonplanar structure, it can be ensured that the oxide layer after metal back is sintered is difficult to be destroyed, it is ensured that it has longer
Service life.
In another embodiment, first heating track 141 and the second heating track 142 are in roundabout shape structure.Tool
Two of body heating tracks are S-type or screw type mechanism, to improve heating validity.In preferred embodiment, thick film heating
The tracks of circuit can be arbitrarily to arrange, to reach the matching with heated object.
As shown in Figure 1 and Figure 4, in an embodiment, first electric-conductor 192 is led including the first electric conductor 192a and second
Electric body 192b, the temperature controller 300 include being arranged at temperature control main body 320 on the thick film heating circuit 140 and with it is described
The first terminal 340 and Second terminal 360 that temperature control main body 320 is electrically connected with, the first terminal 340 is by scolding tin and described the
One electric conductor 192a connects, and the Second terminal 360 is connected by scolding tin with the second electric conductor 192b.Thus thickness can be made
Film heating protecting device structure arrangement is simple, reduces manufacture and follow-up maintenance maintenance difficulty.Should be guaranteed that temperature controller 300 just simultaneously
Normal operating temperature should be less than the melting temperature of scolding tin, so will not just make temperature controller arbitrarily come off.
Wherein, the thick film heating circuit includes two sections of circuits, i.e. the first heating track 141 and the second heating track 142,
Wherein described one end of first heating track 141 is docked with the first terminal 340 of the temperature controller 300, second heating track
142 one end is docked with the Second terminal 360 of the temperature controller 300, afterwards respectively by scolding tin connection.Temperature can so be prevented
Control device failure, it is slow in reacting when thick film heater lose protection, it is ensured that above-mentioned thick-film heating protection structure has reliable anti-doing
Performance is burnt, and then ensures its reliable operation.Additionally, the temperature range of scolding tin fusing point is between 230～300 degree, scolding tin has both been guaranteed
It is not easy at will fusing, and does not make thick film heating circuit because temperature too high and be burned out.
Fig. 4 is refer to, additionally, in an embodiment, the conductive layer 190 also includes being arranged on the substrate 120 being used for
Second electric-conductor 400 of connection power supply, second electric-conductor 400 is connected with the thick film heating circuit 140.One embodiment
In, the temperature control main body 320 is brought into close contact with the coating, thus fully temperature sensor can change, and makes quick sound
Should, it is ensured that the protection fast response time of temperature controller 300, anti-dry performance is good.
In one embodiment, the thick film heating body 100 outwards prints successively sintering from substrate 120 insulating barrier 160, thick
Film heating circuit 140, conductive layer (containing the first electric-conductor 200 and the second electric-conductor 400), coating 180.Second electric-conductor
400 are additionally provided with temperature-sensitive temperature resistance device 420, and the temperature-sensitive temperature resistance device 420 connects external control circuit.Thus can be with
Can preferably realize that the break-make protection of thick-film heating protection device is made by the protective action of temperature-sensitive temperature resistance device 420
With.
The utility model can greatly improve the anti-dry of thick-film heating protection device by above-mentioned dual protection mechanism
Can, while the reliability and safety coefficient of its work is improved, and its simple structure, manufacture and use cost is low.Above-mentioned i.e. hot charging
It can be hot-water bottle, water heater, soy bean milk making machine etc. to put, and thick-film heating protection device is installed on heating device inside and connects with water channel
It is logical, for quickly adding hot liquid.
Each technical characteristic of embodiment described above can be combined arbitrarily, to make description succinct, not to above-mentioned reality
Apply all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, the scope of this specification record is all considered to be.
Embodiment described above only expresses several embodiments of the present utility model, and its description is more concrete and detailed,
But therefore can not be interpreted as the restriction to utility model patent scope.It should be pointed out that for the common skill of this area
For art personnel, without departing from the concept of the premise utility, some deformations and improvement can also be made, these are belonged to
Protection domain of the present utility model.Therefore, the protection domain of the utility model patent should be defined by claims.
Claims (6)
1. a kind of thick-film heating protection device, it is characterised in that include：
Thick film heating body, the thick film heating body includes substrate and the insulating barrier, the thick film heating that are arranged on the substrate
Circuit, conductive layer, coating, the thick film heating circuit includes the first heating track and the second heating track, the conductive layer
Including the first electric-conductor；And
Temperature controller, the temperature controller is welded on the first electric-conductor being arranged on the substrate, by the substrate by scolding tin
Thick film heating circuit the first heating track and the second heating track series connection.
2. thick-film heating protection device according to claim 1, it is characterised in that first electric-conductor is led including first
Electric body and the second electric conductor, the temperature controller include being arranged at temperature control main body on the thick film heating circuit and with it is described
The first terminal and Second terminal that temperature control main body is electrically connected with, the first terminal is connected by scolding tin with first electric conductor
Connect, the Second terminal is connected by scolding tin with second electric conductor.
3. thick-film heating protection device according to claim 1, it is characterised in that first heating track and described
Two heating tracks are in roundabout shape structure.
4. thick-film heating protection device according to claim 2, it is characterised in that the temperature control main body is fitted tightly over institute
State the surface of coating.
5. the thick-film heating protection device according to any one of Claims 1-4, it is characterised in that the conductive layer is also wrapped
Include to be arranged on the substrate and be used for the second electric-conductor for connecting power supply, second electric-conductor connects with the thick film heating circuit
Connect.
6. thick-film heating protection device according to claim 5, it is characterised in that second electric-conductor is additionally provided with temperature-sensitive
Temperature resistance device, the temperature-sensitive temperature resistance device connects external control circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621108878.8U CN206100487U (en) | 2016-10-08 | 2016-10-08 | Thick film heating protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621108878.8U CN206100487U (en) | 2016-10-08 | 2016-10-08 | Thick film heating protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206100487U true CN206100487U (en) | 2017-04-12 |
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ID=58481393
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621108878.8U Active CN206100487U (en) | 2016-10-08 | 2016-10-08 | Thick film heating protection device |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107343330A (en) * | 2017-07-26 | 2017-11-10 | 湖南利德电子浆料股份有限公司 | A kind of thick film hybrid（HIC）Zone of heating and its heater |
| CN108449814A (en) * | 2018-05-17 | 2018-08-24 | 佛山市海德精工电子科技有限公司 | A kind of heater |
| CN109640407A (en) * | 2019-01-24 | 2019-04-16 | 广西桂仪科技有限公司 | A kind of plate thick film heater and manufacturing process |
| CN109744899A (en) * | 2018-03-15 | 2019-05-14 | 九阳股份有限公司 | A kind of food processor that heating efficiency is high |
| CN111148293A (en) * | 2020-01-03 | 2020-05-12 | 浙江银轮机械股份有限公司 | Heating assembly, heat dissipation device and processing method thereof |
-
2016
- 2016-10-08 CN CN201621108878.8U patent/CN206100487U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107343330A (en) * | 2017-07-26 | 2017-11-10 | 湖南利德电子浆料股份有限公司 | A kind of thick film hybrid（HIC）Zone of heating and its heater |
| CN109744899A (en) * | 2018-03-15 | 2019-05-14 | 九阳股份有限公司 | A kind of food processor that heating efficiency is high |
| CN108449814A (en) * | 2018-05-17 | 2018-08-24 | 佛山市海德精工电子科技有限公司 | A kind of heater |
| CN109640407A (en) * | 2019-01-24 | 2019-04-16 | 广西桂仪科技有限公司 | A kind of plate thick film heater and manufacturing process |
| CN111148293A (en) * | 2020-01-03 | 2020-05-12 | 浙江银轮机械股份有限公司 | Heating assembly, heat dissipation device and processing method thereof |
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