CN202723525U - Heating circuit of direct-current electric cooker and direct-current electric cooker - Google Patents

Heating circuit of direct-current electric cooker and direct-current electric cooker Download PDF

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Publication number
CN202723525U
CN202723525U CN 201220422224 CN201220422224U CN202723525U CN 202723525 U CN202723525 U CN 202723525U CN 201220422224 CN201220422224 CN 201220422224 CN 201220422224 U CN201220422224 U CN 201220422224U CN 202723525 U CN202723525 U CN 202723525U
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CN
China
Prior art keywords
direct
direct current
electric cooker
rice cooker
series arm
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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.)
Expired - Fee Related
Application number
CN 201220422224
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Chinese (zh)
Inventor
陈栋
Original Assignee
陈栋
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Priority to CN 201220422224 priority Critical patent/CN202723525U/en
Application granted granted Critical
Publication of CN202723525U publication Critical patent/CN202723525U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a heating circuit of a direct-current electric cooker and a direct-current electric cooker, belonging to the technical field of electric cookers. The heating circuit of the direct-current electric cooker comprises a first serial-connection branch circuit which is formed by a normally-closed temperature controlled switch and a heating body and is connected with the output end of a direct-current power supply. According to the heating circuit provided by the embodiment of the utility model, the normally-closed temperature controlled switch is in series connection with the heating body, so that the direct-current power supply can be connected without an inverter, the heating body can work directly, the utilization ratio of energy resources is improved, and when food is done, the normally-closed temperature controller can switch off automatically, so that the intelligent control of cooking is realized.

Description

Direct current rice cooker heater circuit and direct current rice cooker
Technical field
The utility model relates to the electric cooker technical field, is specifically related to a kind of direct current rice cooker heater circuit and uses the direct current rice cooker of this heater circuit.
Background technology
In real life, people often can run into some special situations and some special colonies are always arranged, and they can't obtain the civil power supply of electric power, such as onboard, on the ship, the situation such as field work, remote mountains isolated island and power failure.According to present technological means and everybody the consistent practice, be the energy that makes stand-by storage, such as automobile storage battery, the low-voltage dc power supply of the storages such as solar cell is converted to the 220V alternating current that household electrical appliance can be used by inverter.This not only needs a fund buying inverter, the more important thing is that the conversion ratio of inverter is not high, itself needs to consume a large amount of electric energy, and this has brought no small difficulty for original just very precious they of electric energy.
And existing electric cooker adopts mechanical switch (for example dry-reed tube switch), therefore owing to all using indoor more, this electric cooker carries in the open air or when car and boat used, misoperation may occur the reason based on vibrations, impact is used, and shockproof effect is poor.
The utility model content
The utility model provides a kind of direct current rice cooker heater circuit, can address the above problem.
The utility model provides a kind of direct current rice cooker heater circuit, comprises the first series arm that is made of closed type temperature detect switch (TDS) and heater, and described the first series arm is connected in the output of dc source.
Preferably, be connected in series a K switch between dc power output end and described the first series arm.
Preferably, this heater circuit also comprises alarm, and described alarm is connected in parallel on the two ends of closed type temperature detect switch (TDS).
Preferably, this heater circuit also comprises the second series arm that current-limiting resistance R1 and power supply indicator LED1 consist of, and described the second series arm is connected in parallel on the two ends of described the first series arm.
Preferably, this heater circuit also comprises the 3rd series arm that current-limiting resistance R2 and warning light LED2 consist of, and described the 3rd series arm is connected in parallel on the two ends of described closed type temperature detect switch (TDS).
Preferably, described heater is the PTC heating plate.
Preferably, described heater is the semiconductor heating plate.
The utility model embodiment also provides a kind of direct current rice cooker, comprises above-mentioned direct current rice cooker heater circuit.
Technique scheme can be found out, because the utility model embodiment adopts the closed type temperature detect switch (TDS) to connect with heater, therefore when the access dc source, do not need to use inverter, heater can on-line operation, improved the utilization rate of the energy, and after meal was cooked, closed type temperature controller meeting automatic disconnection realized the Based Intelligent Control of cooking.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, the below will do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art, apparently, accompanying drawing in the following describes only is embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the schematic block circuit diagram that the utility model is implemented direct current rice cooker heater circuit in 1.
The specific embodiment
Below in conjunction with the accompanying drawing among the utility model embodiment, the technical scheme among the utility model embodiment is clearly and completely described, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making all other embodiment that obtain under the creative work prerequisite, all belong to the scope of the utility model protection.
Embodiment 1:
The utility model embodiment provides a kind of direct current rice cooker heater circuit, in conjunction with shown in Figure 1, comprises the first series arm that is made of closed type temperature detect switch (TDS) and heater, and described the first series arm is connected in the output of dc source.The closed type temperature detect switch (TDS) is in conducting state at normal temperatures, therefore, as long as just can be heater, the access dc source provides power supply, heater can work, and converts electrical energy into heat energy, when electric cooker is cooked, owing in the pot water being arranged, the high maintenance of temperature so the closed type temperature detect switch (TDS) still can be in conducting state, makes heater continue heating at 100 ℃, after meal in the pot is cooked, water in the pot is evaporated, and the temperature in the pot is higher than 100 ℃, the then tripping of closed type temperature detect switch (TDS), namely be in off-state, the heater stopped heating, after the rice temperature in the pot reduced, the closed type temperature detect switch (TDS) is again conducting still, calandria continues heating, keep the temperature in the pot, therefore, the heater circuit among the utility model embodiment can allow electric cooker have heat insulation function.
For convenient the duty of electric cooker is controlled, be connected in series a K switch between dc source VCC output and described the first series arm among the utility model embodiment.Therefore when needs are cooked, only K switch need to be connected and get final product, after meal is cooked, with the K switch disconnection, i.e. edible, the energy resource consumption of having saved dc source.After adding this K switch, the electric cooker of using heater circuit among the utility model embodiment not only can be used for cooking, and also can be used for cooking noodle or cook congee, as long as after noodles or gruel boil, cut-off switch K gets final product, and prevents that the heater continuous heating from causing the dc source waste.
For the state of cooking of Real-Time Monitoring electric cooker, the heater circuit among the utility model embodiment also comprises alarm, and described alarm is connected in parallel on the two ends of closed type temperature detect switch (TDS).By circuit structure among the figure as can be known, under the normal temperature state or in the not yet well-done situation of meal, the closed type temperature detect switch (TDS) is in conducting state, its conducting resistance is very little, therefore the element that is connected in parallel on closed type temperature detect switch (TDS) two ends this moment is in by short-circuit condition does not work, and meal cooked after, the closed type temperature detect switch (TDS) then can automatic disconnection, the alarm that is connected in parallel on closed type temperature detect switch (TDS) two ends is then started working, and sounds.Be understandable that, alarm can be selected buzzer or small-power sound equipment.
For the ease of checking intuitively the duty of electric cooker, heater circuit among the utility model embodiment also comprises the second series arm that current-limiting resistance R1 and power supply indicator LED1 consist of, and described the second series arm is connected in parallel on the two ends of described the first series arm.After K switch was switched on, electric current namely can flow through the second series arm, and power supply indicator can be lit, and the user namely is apprised of: dc source is connected, and electric cooker is in running order.
Because some environment in outdoor occasion, noise is more, the cue of alarm may not can be in time heard by the user, therefore the heater circuit among the utility model embodiment also comprises the 3rd series arm that current-limiting resistance R2 and warning light LED2 consist of, and described the 3rd series arm is connected in parallel on the two ends of described closed type temperature detect switch (TDS).Therefore when meal is cooked after, the closed type temperature detect switch (TDS) disconnects, and alarm and warning light LED2 work simultaneously, as long as the user sees that warning light LED2 is lit namely and knows: meal is cooked, timely cut-off switch K, the saving energy.
Heater is the PTC heating plate among the utility model embodiment, the PTC heating plate has good thermo-sensitive property, and its resistivity raises with temperature to be increased, and therefore can guarantee the firing rate in the electric cooker heating process, also can prevent the electric cooker heating excessively, the situation that causes rice to burn.
In an other embodiment, described heater is the semiconductor heating plate, and it is low that the semiconductor heating plate has energy consumption, effect that can DC heating.
Embodiment 2:
The utility model embodiment provides a kind of direct current rice cooker, this direct current rice cooker has been used the direct current rice cooker heater circuit of describing in above-described embodiment 1, concrete structure and operation principle for direct current rice cooker heater circuit can with reference to the detailed introduction in above-described embodiment 1, be given unnecessary details herein no longer one by one.
The composition structure of electric cooker among the utility model embodiment, can be with reference to existing electric cooker, repeat no more herein, installation for heater circuit and electric cooker, heater circuit can be made pcb board, then be installed on the pot body of electric cooker, heater is arranged on the bottom of a pan of electric cooker, the installation site of closed type temperature detect switch (TDS) is near heater, K switch and power access end mouth all can be fixedly installed on the sidewall of pot body, are understandable that, still other modes can be arranged for the installation of heater circuit and electric cooker, can know understanding and realization to these those skilled in the art, not give unnecessary details one by one herein.
The electric cooker that the utility model embodiment provides with respect to existing electric cooker, has shockproof effect because its heater circuit uses the closed type temperature detect switch (TDS), can not run into vibrations with regard to automatic trip, applicable outdoor use, and can access dc source, energy loss is low.
Above direct current rice cooker heater circuit and the direct current rice cooker that the utility model embodiment is provided is described in detail, used specific case herein principle of the present utility model and embodiment are set forth, the explanation of above embodiment just is used for helping to understand core concept of the present utility model; Simultaneously, for one of ordinary skill in the art, according to thought of the present utility model, all will change in specific embodiments and applications, in sum, this description should not be construed as restriction of the present utility model.

Claims (8)

1. direct current rice cooker heater circuit, it is characterized in that: comprise the first series arm that is made of closed type temperature detect switch (TDS) and heater, described the first series arm is connected in the output of dc source.
2. direct current rice cooker heater circuit as claimed in claim 1 is characterized in that: be connected in series a K switch between dc power output end and described the first series arm.
3. direct current rice cooker heater circuit as claimed in claim 2, it is characterized in that: also comprise alarm, described alarm is connected in parallel on the two ends of closed type temperature detect switch (TDS).
4. direct current rice cooker heater circuit as claimed in claim 3 is characterized in that: also comprise the second series arm that current-limiting resistance R1 and power supply indicator LED1 consist of, described the second series arm is connected in parallel on the two ends of described the first series arm.
5. direct current rice cooker heater circuit as claimed in claim 4 is characterized in that: also comprise the 3rd series arm that current-limiting resistance R2 and warning light LED2 consist of, described the 3rd series arm is connected in parallel on the two ends of described closed type temperature detect switch (TDS).
6. direct current rice cooker heater circuit as claimed in claim 1, it is characterized in that: described heater is the PTC heating plate.
7. direct current rice cooker heater circuit as claimed in claim 1, it is characterized in that: described heater is the semiconductor heating plate.
8. the direct current rice cooker is characterized in that: comprise the described direct current rice cooker of any one heater circuit in the claims 1~7.
CN 201220422224 2012-08-23 2012-08-23 Heating circuit of direct-current electric cooker and direct-current electric cooker Expired - Fee Related CN202723525U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220422224 CN202723525U (en) 2012-08-23 2012-08-23 Heating circuit of direct-current electric cooker and direct-current electric cooker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220422224 CN202723525U (en) 2012-08-23 2012-08-23 Heating circuit of direct-current electric cooker and direct-current electric cooker

Publications (1)

Publication Number Publication Date
CN202723525U true CN202723525U (en) 2013-02-13

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201220422224 Expired - Fee Related CN202723525U (en) 2012-08-23 2012-08-23 Heating circuit of direct-current electric cooker and direct-current electric cooker

Country Status (1)

Country Link
CN (1) CN202723525U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103349507A (en) * 2013-07-12 2013-10-16 陈奇奇 Water dispenser with voice prompt
CN104138075A (en) * 2014-06-21 2014-11-12 蒋国昌 Heat-energy clothes and picnicking electric heating appliances

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103349507A (en) * 2013-07-12 2013-10-16 陈奇奇 Water dispenser with voice prompt
CN104138075A (en) * 2014-06-21 2014-11-12 蒋国昌 Heat-energy clothes and picnicking electric heating appliances

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GR01 Patent grant
C14 Grant of patent or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20130213

Termination date: 20180823

CF01 Termination of patent right due to non-payment of annual fee