CN205433413U - Electric oven temperature rise control circuit - Google Patents
Electric oven temperature rise control circuit Download PDFInfo
- Publication number
- CN205433413U CN205433413U CN201620013318.8U CN201620013318U CN205433413U CN 205433413 U CN205433413 U CN 205433413U CN 201620013318 U CN201620013318 U CN 201620013318U CN 205433413 U CN205433413 U CN 205433413U
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- temperature
- temperature controller
- electric baker
- control circuit
- temperature rise
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Abstract
The utility model discloses an electric oven temperature rise control circuit, including live wire and control by temperature change unit, mode selected cell zero line between and the generate heat unit of tandem connection at the power supply plug, the control by temperature change unit includes the constant temperature temperature controller and the adjustable temperature controller of series connection. According to the automatic silicon steel sheet leveling machine of the transformer, concatenate an adjustable temperature controller and a constant temperature temperature controller to the main circuit in, as the control by temperature change unit, be used for injecing the temperature of electric oven heating intracavity and the maximum temperature of oven surface jointly, the electric oven no matter full power mode down or the non - make perfect under the power mode, all the interior temperature rise that reaches the oven surface of electric oven is controlled with the cooperation of adjustable temperature controller accurately to accessible constant temperature temperature controller, control respectively for the different branch roads of tradition simultaneously, this scheme is an adjustable temperature controller only, convenient operation and cost are lower.
Description
Technical field
This utility model relates to the technical field of household electrical appliance temperature control, is specifically related to a kind of electric baker temperature rise control circuit.
Background technology
Electric baker plays important role in Modern Family, on the one hand because it compares environmental protection, is on the other hand then owing to its firing rate is fast, and the simplicity that operation is also compared.The most easily occurring the phenomenon that baking box hull-skin temperature is too high due to electric baker, there is potential safety hazard, therefore, EU Committee has formulated EN60335-2-9A13/EK1 standard, is defined electric baker outer surface temperature rise.
For this, traditional electric baker have employed adjustable mechanical temperature controller, by controlling the break-make of electric baker cavity internal heat generation body, thus realize hygral equilibrium, but mechanical temperature controller error is bigger, portioned product actual test surfaces temperature rise is higher, beyond Valuation Standard requirement, additionally, electric baker requires at difference in functionality gear MODE of operation, and under different working modes, single adjustable mechanical temperature controller can only more accurately control the temperature under electric baker total power, the temperature under other non-total power controls also can be higher.
In order to solve the problems referred to above, Chinese patent CN204256558U discloses a kind of electric baker temperature essence control circuit, including power output end, power input, heating circuit, functional select switch and the 3rd temperature controller, described heating circuit includes the first heating branch road and the second heating branch road being arranged in parallel；Described first heating branch road includes that heat-generating pipe and the first temperature controller, described second heating branch road include lower heat-generating pipe and the second temperature controller, and described functional select switch is located on the backbone circuits of heating circuit, and described functional select switch has K1 and K2 two gear；K1 gear is connected with the backbone circuits of heating circuit；When selecting K1 gear, it is also turned on the first heating branch road and the second heating branch road；K2 gear is connected with one end of described 3rd temperature controller, the other end of the 3rd temperature controller connection respectively and between the first heat-generating pipe and the first temperature controller and between the second heat-generating pipe and the second temperature controller；When selecting K2 gear, the 3rd temperature controller controls switching on and off of the first heat-generating pipe and the second heat-generating pipe simultaneously.The program is by respectively setting a temperature controller on the branch road of upper and lower heat-generating pipe, independently control and monitor upper and lower heat-generating pipe, thus so that heating temp is stable, uniform, efficiently avoid because the position of temperature controller placement is different, and cause the heating of electric baker top and the bottom uneven and the inaccurate phenomenon of temperature.But this utility model circuit there is problems:
(1) although, in this circuit two heat-generating pipes respectively by an adjustable temp on-off control, the temperature in electric baker can be controlled well under full-power mode, but, under non-full-power mode, due to mechanical temperature controller bigger error, the problem causing interior and inactive face the temperature rise of electric baker higher the most effectively solves.
(2), this circuit controlled by two adjustable temp. controllers, operation is complicated and high cost.
In view of this, being badly in need of providing a kind of simple to operate, cost is relatively low and can more preferably control the temperature control circuit of electric baker chamber door surface temperature rise.
Utility model content
Technical problem to be solved in the utility model is in the temperature control circuit of existing electric baker, mechanical temperature controller bigger error, causes electric baker chamber door surface temperature rise higher and the problem of operation complexity.
In order to solve above-mentioned technical problem, this utility model be employed technical scheme comprise that a kind of electric baker temperature rise control circuit of offer, including being connected in series in temperature conditioning unit, mode selecting unit and heat-generating units between live wire and the zero line for plug；Described temperature conditioning unit includes constant-temperaturetemperature temperature controller and the adjusting temperature controller being connected in series.
Compared with prior art, one adjusting temperature controller and a constant-temperaturetemperature temperature controller are concatenated to main circuit by this utility model, as temperature conditioning unit, it is provided commonly for limiting temperature and the maximum temperature of baking box outer surface of electric baker heating intracavity, electric baker is no matter under full-power mode or under non-full-power mode, all can by constant-temperaturetemperature temperature controller and adjusting temperature controller coordinate accurately control electric baker in and the temperature rise of baking box outer surface, control respectively relative to tradition different branch simultaneously, this programme only one of which adjusting temperature controller, easy to operate and cost is relatively low.
In such scheme, described heat-generating units is made up of the many groups of heating branch roads being connected in parallel, and described mode selecting unit is the multi-gear switch for selecting different heat branch road to be mutually combined.
This design is to select one or several heating branch road work to realize the different mode of operation of electric baker (such as low fire, moderate heat, three kinds of different working modes of high fire) by mode selecting unit.
In such scheme, also including that the one end after display lamp and the protective resistance being connected in series, and the two series connection connects the input of described temperature conditioning unit, the other end connects the described zero line for plug.The effect of display lamp is the duty showing electric baker, and protective resistance is used for protecting display lamp will not damage because of circuit overvoltage.
In such scheme, described constant-temperaturetemperature temperature controller is Kick type temperature controller.Relative to now widely available mechanical temperature controller in baking box, Kick type temperature controller has temperature control effect more accurately, does not results in the phenomenon that roasting the temperature inside the box is fluctuated.
In such scheme, described circuit between live wire and described temperature conditioning unit for plug is provided with an intervalometer.Intervalometer 1, for setting the time of baking food, makes electric baker more intelligent.
In such scheme, the circuit between described heat-generating units and the described zero line for plug is provided with a thermal cut-off.Overheated when thermal cut-off is for preventing electric baker from working cause fault or component wear
Accompanying drawing explanation
Fig. 1 is circuit diagram of the present utility model.
Detailed description of the invention
Below in conjunction with detailed description of the invention and Figure of description, this utility model is described in detail.
As shown in Figure 1, this utility model provides a kind of electric baker temperature rise control circuit, including the intervalometer 1, temperature conditioning unit 10, mode selecting unit 20, heat-generating units 30 and the thermal cut-off 2 that are connected in series in successively between live wire and the zero line binding post for plug 3.
Temperature conditioning unit 10 includes constant-temperaturetemperature temperature controller 11 and the adjusting temperature controller 12 being connected in series, and the input of constant-temperaturetemperature temperature controller 11 is connected to the outfan of intervalometer 1, and the outfan of constant-temperaturetemperature temperature controller 11 is connected with the input of mode selecting unit 20.
Constant-temperaturetemperature temperature controller 11 rushes peak temperature for Kick type temperature controller for limiting the head in furnace cavity, and adjusting temperature controller 12 is for regulating the equilibrium temperature of the electric baker heating intracavity under different working modes, and intervalometer 1 sets the time of baking food for user.
The input of intervalometer 1 is connected to the L end for plug 3；Mode selecting unit 20 is a gear on-off, gear on-off is provided with 3 function gear a, b, c, heat-generating units 30 is by three groups of heating branch road A being connected in parallel, B, C is constituted, three groups of heating branch road A, B, C is composed in series by two heat-generating pipes 31 respectively, three groups of heating branch road A, B, one end of C is connected respectively a on gear on-off, b, c function gear, the other end is connected to thermal cut-off 2, the other end of thermal cut-off 2 is connected to the N end for plug 3, it is connected to the E end ground connection for plug 3, this circuit select one or several heating branch road work to realize the different mode of operation of electric baker (such as low fire by mode selecting unit 20, moderate heat, Gao Huosan kind different working modes).Thermal cut-off 2 overheated effect causing fault or component wear in time preventing electric baker from working.
For the duty of clear and definite electric baker, being additionally provided with working station indicator 2 in this utility model, after working station indicator 4 is connected with protective resistance 5, one end connects the outfan of intervalometer 1, and the other end connects the input of thermal cut-off 2.Display lamp 4 is for indicating the duty of electric baker, and protective resistance 5 is used for protecting display lamp 4 will not damage because of circuit overvoltage.
This utility model, a constant-temperaturetemperature temperature controller 11 of connecting in main circuit and an adjusting temperature controller 12 are in controlling electric baker and the temperature rise of outer surface, the break-off signal of constant-temperaturetemperature temperature controller 11 is set in the temperature upper limit determined through test, (this temperature upper limit can limit electric baker head and rush peak temperature, i.e. after electric baker cold start work, furnace chamber temperature can continue rising up to a peak (this peak is exactly that head rushes peak temperature), and recurrent fluctuations is adjusted to a stabilized operating temperature the most again；Head rushes that temperature is the highest, and the time that following temperature is slowly declined to stabilized operating temperature is the longest, and so, baking box early stage can be operated in and be at a temperature of higher the long period, and baking box hull-skin temperature also can raise accordingly.)；Constant-temperaturetemperature temperature controller 11 and adjusting temperature controller 12 are arranged on the appropriate location in electric baker cavity, constant-temperaturetemperature temperature controller 11 is to limit the temperature rise (mainly head rushes peak value temperature rise) that electric baker is the highest, temperature rise when adjusting temperature controller 12 is to control the working stability in electric baker.
Electric baker is under full power operation pattern, all heating branch road works simultaneously, temperature in electric baker may be due to the placement location of adjusting temperature controller 12 or machine error, when causing the setting value that the temperature in electric baker has reached adjusting temperature controller 12, adjusting temperature controller 12 disconnects not yet, but, constant-temperaturetemperature temperature controller 11 disconnects (design temperature of constant-temperaturetemperature temperature controller is definite value, will not have machine error as mechanical adjusting temperature controller).
Heat-generating units 30 stops heating, it is down to constant-temperaturetemperature temperature controller 11 at a temperature of in electric baker when connecting temperature, constant-temperaturetemperature temperature controller 11 is connected and is made heat-generating units 30 be once again powered up work, if following temperature reaches again constant-temperaturetemperature temperature controller 11 break-off signal, then constant-temperaturetemperature temperature controller 11 is again off limit temperature, otherwise, follow-up the temperature rise that stable process is controlled in electric baker by adjusting temperature controller 12 is reached.
Electric baker is under non-full power operation pattern, heating branched portion work, temperature rise value in furnace chamber does not reaches the disconnection setting value of adjustable temp. controller 12, adjustable temp. controller 12 is substantially at normal open state, in electric baker, operating temperature is controlled by constant-temperaturetemperature temperature controller 11, this kind of control mode can limit under non-full power operation pattern to greatest extent, in electric baker and the temperature rise of baking box outer surface.
By above-mentioned control mode, electric baker is no matter under full-power mode or under non-full-power mode, all can accurately control the temperature rise of electric baker surfaces externally and internally by coordinating of constant-temperaturetemperature temperature controller 11 and adjusting temperature controller 12, control respectively relative to tradition different branch simultaneously, this programme only one of which adjusting temperature controller 12, behaviour does convenient and cost is relatively low.
This utility model is not limited to above-mentioned preferred forms, and anyone should learn the structure change made under enlightenment of the present utility model, and every have same or like technical scheme, within each falling within protection domain of the present utility model with this utility model.
Claims (6)
1. an electric baker temperature rise control circuit, including the temperature conditioning unit, mode selecting unit and the heat-generating units that are connected in series between live wire and the zero line for plug, it is characterised in that: described temperature conditioning unit includes constant-temperaturetemperature temperature controller and the adjusting temperature controller being connected in series.
2. electric baker temperature rise control circuit as claimed in claim 1, it is characterised in that described heat-generating units is made up of the many groups of heating branch roads being connected in parallel, and described mode selecting unit is the multi-gear switch for selecting different heat branch road to be mutually combined.
3. electric baker temperature rise control circuit as claimed in claim 1, it is characterised in that also including that the one end after display lamp and the protective resistance being connected in series, and the two series connection connects the input of described temperature conditioning unit, the other end connects the described zero line for plug.
4. electric baker temperature rise control circuit as claimed in claim 1, it is characterised in that described constant-temperaturetemperature temperature controller is Kick type temperature controller.
5. electric baker temperature rise control circuit as claimed in claim 1, it is characterised in that described circuit between live wire and described temperature conditioning unit for plug is provided with an intervalometer.
6. electric baker temperature rise control circuit as claimed in claim 1, it is characterised in that the circuit between described heat-generating units and the described zero line for plug is provided with a thermal cut-off.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620013318.8U CN205433413U (en) | 2016-01-04 | 2016-01-04 | Electric oven temperature rise control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620013318.8U CN205433413U (en) | 2016-01-04 | 2016-01-04 | Electric oven temperature rise control circuit |
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| Publication Number | Publication Date |
|---|---|
| CN205433413U true CN205433413U (en) | 2016-08-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620013318.8U Active CN205433413U (en) | 2016-01-04 | 2016-01-04 | Electric oven temperature rise control circuit |
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| Country | Link |
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| CN (1) | CN205433413U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110007700A (en) * | 2019-04-09 | 2019-07-12 | 中山百得厨卫有限公司 | A kind of circuit control formula oven |
| CN110934509A (en) * | 2019-11-20 | 2020-03-31 | 中山升威电器制造有限公司 | Circuit connection structure of electric oven |
| CN114129068A (en) * | 2021-12-30 | 2022-03-04 | 广东美的厨房电器制造有限公司 | Baking oven |
| CN114271707A (en) * | 2021-12-30 | 2022-04-05 | 广东美的厨房电器制造有限公司 | Baking oven |
-
2016
- 2016-01-04 CN CN201620013318.8U patent/CN205433413U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110007700A (en) * | 2019-04-09 | 2019-07-12 | 中山百得厨卫有限公司 | A kind of circuit control formula oven |
| CN110007700B (en) * | 2019-04-09 | 2024-04-05 | 中山百得厨卫有限公司 | Circuit control type oven |
| CN110934509A (en) * | 2019-11-20 | 2020-03-31 | 中山升威电器制造有限公司 | Circuit connection structure of electric oven |
| CN114129068A (en) * | 2021-12-30 | 2022-03-04 | 广东美的厨房电器制造有限公司 | Baking oven |
| CN114271707A (en) * | 2021-12-30 | 2022-04-05 | 广东美的厨房电器制造有限公司 | Baking oven |
| CN114271707B (en) * | 2021-12-30 | 2023-08-15 | 广东美的厨房电器制造有限公司 | Oven with a baking oven |
| CN114129068B (en) * | 2021-12-30 | 2023-08-22 | 广东美的厨房电器制造有限公司 | Oven with a baking oven |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |