CN105657881A - Electric heating device with temperature protection device - Google Patents
Electric heating device with temperature protection device Download PDFInfo
- Publication number
- CN105657881A CN105657881A CN201610153289.XA CN201610153289A CN105657881A CN 105657881 A CN105657881 A CN 105657881A CN 201610153289 A CN201610153289 A CN 201610153289A CN 105657881 A CN105657881 A CN 105657881A
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- CN
- China
- Prior art keywords
- temperature
- temperature controller
- thick
- heating element
- type
- 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
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- 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
- H05B3/44—Heating elements having the shape of rods or tubes non-flexible heating conductor arranged within rods or tubes of insulating material
-
- 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
- F24H9/2007—Arrangement or mounting of control or safety devices for water heaters
- F24H9/2014—Arrangement or mounting of control or safety devices for water heaters using electrical energy supply
Abstract
The invention discloses an electric heating device with a temperature protection device. The electric heating device comprises a tubular thick film heating element and a dual-snap-action rapid temperature sensing type temperature controller connected with the thick film heating element in series; the thick film heating element is installed in a shell, an automatic-reset-type snap-action temperature controller is fixed to the shell, and a heat-sensitive reaction assembly of the automatic-reset-type snap-action temperature controller is directly attached to the heating face of the thick film heating element. According to the electric heating device with the temperature protection device, due to the fact that the heat-sensitive reaction assembly of the automatic-reset-type snap-action temperature controller is directly attached to the heating face of the thick film heating element, the rapid action of the automatic-reset-type snap-action temperature controller is guaranteed, and the defect that an existing temperature controller cannot protect a heating element in time is overcome. When the electric heating device normally works to heat water, the surface working temperature of a heating circuit does not exceed preset temperature, transient water breaking and water quantity decreasing can enable the circuit temperature to be rapidly increased in the using process, and a contact temperature sensing type automatic temperature controller on the upper portion is quickly powered off at the moment and is automatically reset to be powered on when the temperature of the temperature controller is cooled to the reset temperature after the water flow is normal.
Description
Technical field
The present invention relates to electric-heating technology, be specifically related to a kind of electric heater unit with temperature protective device.
Background technology
Stainless steel thick film heating body is mainly made up of stainless steel base, interior insulating medium layer, resistance heating layer and external insulation dielectric layer from inside to outside, current flow through from stainless steel inwall, wherein interior dielectric layer thickness is 100 microns of left and right, because the heat conduction distance from resistance heating layer to stainless steel base is short, so thermal resistance is very little, thermal response speed is fast.
Thick-film heating belongs to face heating, and entirety is heated more even, can the efficiency of heating surface not reduced because heater surfaces produces a large amount of bubbles. Because heat can conduct away in time, so whole heat-generating pipe surface temperature is not high, can not cause naked light. Security is good, long service life.
Due to this advantage of thick film heater, extensively approved by market, but the thing followed is, because the power of such heater is high, thermal response speed is fast, easily dry combustion method damages, traditional temperature controller is in temperature rise (or decline) during to operating temperature using bimetallic material as the element (utilizing the transferring heats such as capping, interior painting Heat Conduction Material, heat radiation) of experiencing temperature, produce kick action in moment, because reaction speed can not meet the needs of thick film heater slowly, often wait until that after temperature controller action, heating element heater is burnt. This series products temperature rise speed is greater than 80 DEG C/s, forbids dry combustion method.
Summary of the invention
In order to solve the deficiencies in the prior art, the invention provides a kind of electric heater unit with temperature protective device.
Technical scheme of the present invention is: a kind of electric heater unit with temperature protective device; comprise tubulose thick-film heating element; and the auto-reset type Kick type temperature controller of connecting with thick-film heating element circuit; described thick-film heating element is placed in a shell; described auto-reset type Kick type temperature controller is fixed on described shell, and the thermo-responsive reaction component of described auto-reset type Kick type temperature controller and the heating face of thick-film heating element are directly fitted.
Further improvement of the present invention comprises:
Described auto-reset type Kick type temperature controller is fixed on described shell by a temperature controller pressing plate, and described auto-reset type Kick type temperature controller is series at thick-film heating element circuit zero line side.
Described temperature controller pressing plate is by the silicon rubber of 40～80 degree, or other are high temperature resistant, and the while has again certain flexible material makes, to guarantee that temperature controller and thick film heating face fit tightly, being unlikely to again pressure affects too greatly the assembly temperature distortion of temperature controller temperature-sensitive and reaction speed.
Auto-reset type Kick type temperature controller is positioned at the water outlet end of thick-film heating element, and when mounted, thick-film heating element is vertically installed, and its upper end is delivery port. Liquid flow direction is for from top to bottom, in order to avoid cause regional area dry combustion method. Described heater needs vertically to install, and water (flow) direction from bottom to top. Described pair of temperature controller should be arranged on the relatively-high temperature degree region of heater, and one is automatically, and one is manually, and the former is temperature anomaly protection, and the latter is safeguard protection. Automatic thermostat should be arranged on the high position of temperature, more manual temperature controller position as far as possible.
Described thick-film heating element circuit series connection auto-reset type temperature controller, in the time of temperature anomaly, can disconnect first fast; in the time that temperature recovers normal; automatically reset again, so both to the abnormal overheated effective protective effect of playing of heater, reduced again the maintenance cost of reprocessing of product.
Described thick-film heating element circuit series connection Manual resetting type kicking temperature controller. Under extreme case; in the situation that other anti-dry measure and overtemperature protection measure were lost efficacy; the temperature controller of manual replacement type can disconnect calandria power supply before melting in plastic parts overheating deforming, burning, in order to avoid cause larger loss, with this, heater is played to final safeguard protection.
Described Manual resetting type kicking temperature controller is fixed on described shell by a temperature controller pressing plate, described temperature controller pressing plate is made by the silicon rubber of 40～80 degree, to guarantee that temperature controller and thick film heating face fit tightly, being unlikely to again pressure affects too greatly the assembly temperature distortion of temperature controller temperature-sensitive and reaction speed.
The operating temperature of described Manual resetting type kicking temperature controller is higher than the operating temperature of auto-reset type Kick type temperature controller.
One end of described tubulose thick-film heating element is delivery port, and the other end is water inlet, and described water inlet or delivery port are provided with temperature sensor.
The thermo-responsive reaction component of auto-reset type Kick type temperature controller and the joint portion of thick-film heating element are curved.
The present invention is simple in structure; by the thermal sensing assembly of tactility warm type Kick type temperature controller and the heating face of thick-film heating element are directly fitted; ensure the rapid action of temperature controller; solve the non-direct laminating of existing temperature controller thermal sensing assembly and thick film heating face; reaction speed is slow, thereby can not protect in time the drawback of heating element heater. When normal heating water, the surface Working Temperature of heating circuit is no more than design temperature, of short durationly in use procedure cut off the water supply, the water yield diminishes and can make circuit temperature raise fast, the now rapid power-off of top tactility warm type automatic thermostat, do not affect any performance, the connection that automatically resets when temperature controller is cooled to reset temperature after current are normal, calandria can normally be worked.
When other safeguard measures of product that use this heater lost efficacy, this heater continues energising heating, automatic temperature-controlled perseveration, when thermal accumlation moving temperature controller operating temperature in one's hands, or automatic temperature-controlledly lost efficacy because of perseveration, when the persistently overheating extremely manually temperature controller operating temperature of heater, manually temperature controller action, cut off the electricity supply, thereby reach protection thick-film heating element and whole heater security purpose, thereby play the object of protection thick-film heating element and whole heater, therefore automatically reset and further reduced the cost of reprocessing of application product.
Brief description of the drawings
Fig. 1 is structural representation of the present invention.
In figure: 1, temperature sensor, 2, sensor compressing tablet, 3, upper end cover, 4, sealing ring, 5, auto-reset type Kick type temperature controller, 6, Manual resetting type kicking temperature controller, 7, temperature controller pressing plate, 8, shell, 9, bottom end cover, 10, thread tapping, 11, silica gel diversion column.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is elaborated.
As shown in Figure 1; the invention provides a kind of electric heater unit with temperature protective device; comprise tubulose thick-film heating element; and the auto-reset type Kick type temperature controller of connecting with thick-film heating element circuit; described thick-film heating element is placed in a shell; described auto-reset type Kick type temperature controller is fixed on described shell, and the thermo-responsive reaction component of described auto-reset type Kick type temperature controller and the heating face of thick-film heating element are directly fitted. Described auto-reset type Kick type temperature controller is fixed on described shell by a temperature controller pressing plate, and described auto-reset type Kick type temperature controller is series at thick-film heating element circuit zero line side.
Applicant is in the time producing for above-mentioned improvement; find this auto-reset type Kick type temperature controller regular can not protect in time thick-film heating element; through applicant's large quantity research, test and improvement; the reason of finding this phenomenon of generation is that the pressure of pressing plate is excessive; make the thermo-responsive reaction component of auto-reset type Kick type temperature controller not produce the space of the action of opening circuit; therefore applicant adjusts for this situation, and the pressure of pressing plate is turned down. But therefore problem does not solve. Applicant further studies discovery, is lowering after platen pressure, and thermo-responsive reaction component is not tight with contacting of thick-film heating element, or even gapped, has produced and the same problem of original contactless temperature controller. Therefore, applicant has carried out a large amount of development tests, try out multiple material, final silicon rubber or other the resistant to elevated temperatures plastics of described temperature controller pressing plate by 40～80 degree of finding, or other are high temperature resistant, and the while has again certain flexible material makes, to guarantee that temperature controller and thick film heating face fit tightly, being unlikely to again pressure affects too greatly the assembly temperature distortion of temperature controller temperature-sensitive and reaction speed. Too hard material can not ensure that temperature controller effectively opens circuit, and too soft material can not ensure fitting tightly of temperature controller.
Auto-reset type Kick type temperature controller is positioned at the water outlet end of thick-film heating element, and when mounted, thick-film heating element is vertically installed, and its upper end is delivery port. Liquid flow direction is for from top to bottom, in order to avoid cause regional area dry combustion method.
The thermo-responsive reaction component of described auto-reset type Kick type temperature controller and the heating face of thick-film heating element are directly fitted, and the outer wall of thick-film heating element is heating surface, and thick-film heating circuit is printed on this outer wall surface. Ensure the most directly to carry out temperature sense for heater circuit, and then protection heater circuit.
Described thick-film heating element circuit series connection Manual resetting type kicking temperature controller. Under extreme case, in the situation that anti-dry measure and overtemperature protection measure were lost efficacy, the temperature controller of manual replacement type can disconnect calandria power supply before melting in plastic parts overheating deforming, burning, in order to avoid cause larger loss.
The operating temperature of described Manual resetting type kicking temperature controller is higher than the operating temperature of auto-reset type Kick type temperature controller. Described Manual resetting type kicking temperature controller is fixed on described shell by a temperature controller pressing plate, described temperature controller pressing plate is made by the silicon rubber of 40～80 degree, to guarantee that temperature controller and thick film heating face fit tightly, being unlikely to again pressure affects too greatly the assembly temperature distortion of temperature controller temperature-sensitive and reaction speed.
One end of described tubulose thick-film heating element is delivery port, and the other end is water inlet, and described water inlet or delivery port are provided with temperature sensor.
The thermo-responsive reaction component of auto-reset type Kick type temperature controller and the joint portion of thick-film heating element are curved.
The present invention is simple in structure; by the thermal sensing assembly of auto-reset type Kick type temperature controller and the outer wall of thick-film heating element are directly fitted; ensure the rapid action of auto-reset type Kick type temperature controller; solve the non-direct laminating of existing temperature controller thermal sensing assembly and thick film heating face; reaction speed is slow, thereby can not protect in time the drawback of heating element heater. When normal heating water, the surface Working Temperature of heating circuit is no more than design temperature, of short durationly in use procedure cut off the water supply, the little meeting of the water yield raises circuit temperature fast, the now rapid power-off of top tactility warm type automatic thermostat, do not affect any performance, the connection that automatically resets when temperature controller cooling reset temperature after current are normal, calandria can normally be worked.
When other safeguard measures of product that use this heater lost efficacy; this heater continues energising heating; automatic temperature-controlled perseveration; when thermal accumlation moving temperature controller operating temperature in one's hands; or automatic temperature-controlledly lost efficacy because of perseveration; when the persistently overheating extremely manually temperature controller operating temperature of heater; manually temperature controller action; cut off the electricity supply; thereby reach protection thick-film heating element and whole heater security purpose, therefore auto-reset type Kick type temperature controller has further reduced the cost of reprocessing of application product.
More than show and described general principle of the present invention and principal character and advantage of the present invention. The technical staff of the industry should understand; the present invention is not restricted to the described embodiments; that in above-described embodiment and description, describes just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention. The claimed scope of the present invention is defined by appending claims and equivalent thereof.
Claims (9)
1. with an electric heater unit for temperature protective device, comprise tubulose thick-film heating element, and with thick-film heating element electricityThe auto-reset type Kick type temperature controller of road series connection, is characterized in that, described thick-film heating element is placed in a shellIn, described auto-reset type Kick type temperature controller is fixed on described shell, described auto-reset type Kick type temperature controllerThermo-responsive reaction component and the heating face of thick-film heating element directly fit.
2. a kind of electric heater unit with temperature protective device according to claim 1, is characterized in that, described is automaticRestoration type Kick type temperature controller is fixed on described shell by a temperature controller pressing plate, and described auto-reset type Kick type temperatureControl device is series at thick-film heating element circuit zero line side.
3. a kind of electric heater unit with temperature protective device according to claim 2, is characterized in that described temperature controlDevice pressing plate is made by the silicon rubber of 40～80 degree, to guarantee that temperature controller and thick film heating face fit tightly, and are unlikely to again pressureAffect too greatly the assembly temperature distortion of temperature controller temperature-sensitive and reaction speed.
4. according to a kind of electric heater unit with temperature protective device described in claim 1-3 any one, it is characterized in that, automaticallyRestoration type Kick type temperature controller is positioned at the high-temperature water outlet mouth end of thick-film heating element, and, when mounted, thick-film heating elementVertically install, its upper end is delivery port.
5. a kind of electric heater unit with temperature protective device according to claim 1, is characterized in that described thick filmHeating element circuit live wire end is also in series with Manual resetting type kicking temperature controller.
6. a kind of electric heater unit with temperature protective device according to claim 5, is characterized in that, described manually multipleThe operating temperature of bit-type Kick type temperature controller is higher than the operating temperature of auto-reset type Kick type temperature controller.
7. a kind of electric heater unit with temperature protective device according to claim 5, is characterized in that, described is manualRestoration type Kick type temperature controller is fixed on described shell by a temperature controller pressing plate, and described temperature controller pressing plate is by 40～80The silicon rubber of degree makes, and to guarantee that temperature controller and thick film heating face fit tightly, being unlikely to again pressure affects too greatly temperature controlThe assembly temperature distortion of device temperature-sensitive and reaction speed.
8. a kind of electric heater unit with temperature protective device according to claim 1, is characterized in that, described electricity addsOne end that hot charging is put is delivery port, and the other end is water inlet, and described water inlet or delivery port are provided with temperature sensor.
9. a kind of electric heater unit with temperature protective device according to claim 1, is characterized in that auto-reset typeThe thermo-responsive reaction component of Kick type temperature controller and the joint portion of thick-film heating element are curved.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610153289.XA CN105657881A (en) | 2016-03-17 | 2016-03-17 | Electric heating device with temperature protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610153289.XA CN105657881A (en) | 2016-03-17 | 2016-03-17 | Electric heating device with temperature protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105657881A true CN105657881A (en) | 2016-06-08 |
Family
ID=56494572
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610153289.XA Pending CN105657881A (en) | 2016-03-17 | 2016-03-17 | Electric heating device with temperature protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105657881A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110602815A (en) * | 2019-09-30 | 2019-12-20 | 浙江海洋大学 | Automatic outage formula heating rod |
| CN113007893A (en) * | 2021-03-13 | 2021-06-22 | 安徽苏立科技股份有限公司 | Instant heating type heater for direct drinking machine |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2033163U (en) * | 1988-03-02 | 1989-02-22 | 徐国亮 | Manual or automatic resetting multi-functional electricity-getting protecter |
| CN201662182U (en) * | 2010-02-10 | 2010-12-01 | 佛山市高明欧一电子制造有限公司 | Overheating protection device of humidifier heating element |
| CN204427733U (en) * | 2014-12-29 | 2015-07-01 | 九阳股份有限公司 | A kind of kitchen appliance heating container |
| CN204427734U (en) * | 2014-12-29 | 2015-07-01 | 九阳股份有限公司 | A kind of kitchen appliance heating container |
| CN205389275U (en) * | 2016-03-17 | 2016-07-20 | 新乡市杰达精密电子器件有限公司 | Electric heater unit with temperature protective device |
-
2016
- 2016-03-17 CN CN201610153289.XA patent/CN105657881A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2033163U (en) * | 1988-03-02 | 1989-02-22 | 徐国亮 | Manual or automatic resetting multi-functional electricity-getting protecter |
| CN201662182U (en) * | 2010-02-10 | 2010-12-01 | 佛山市高明欧一电子制造有限公司 | Overheating protection device of humidifier heating element |
| CN204427733U (en) * | 2014-12-29 | 2015-07-01 | 九阳股份有限公司 | A kind of kitchen appliance heating container |
| CN204427734U (en) * | 2014-12-29 | 2015-07-01 | 九阳股份有限公司 | A kind of kitchen appliance heating container |
| CN205389275U (en) * | 2016-03-17 | 2016-07-20 | 新乡市杰达精密电子器件有限公司 | Electric heater unit with temperature protective device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110602815A (en) * | 2019-09-30 | 2019-12-20 | 浙江海洋大学 | Automatic outage formula heating rod |
| CN110602815B (en) * | 2019-09-30 | 2022-03-18 | 浙江海洋大学 | Automatic outage formula heating rod |
| CN113007893A (en) * | 2021-03-13 | 2021-06-22 | 安徽苏立科技股份有限公司 | Instant heating type heater for direct drinking machine |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160608 |
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| WD01 | Invention patent application deemed withdrawn after publication |