CN204708587U - The improper double protection structures of a kind of electric cooker - Google Patents
The improper double protection structures of a kind of electric cooker Download PDFInfo
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- CN204708587U CN204708587U CN201520374460.0U CN201520374460U CN204708587U CN 204708587 U CN204708587 U CN 204708587U CN 201520374460 U CN201520374460 U CN 201520374460U CN 204708587 U CN204708587 U CN 204708587U
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Abstract
The utility model belongs to kitchen utensils technical field, especially relates to the improper double protection structures of a kind of electric cooker.The improper double protection structures of this electric cooker comprises the thermal cut-off of place in circuit; the normally closed type temperature controller being in closure state under normal condition with circuit is provided with in circuit; normally closed type temperature controller comprises the temperature sensitive member can responding to body stay-warm case temperature; temperature sensitive member near or be fixed on body stay-warm case, and normally closed type temperature controller and circuit disconnect when the temperature that temperature sensitive member senses is greater than the break-off signal of setting.Advantage is: have duplicate protection, wherein first heavily protection be normally closed type temperature controller, second heavily protection be thermal cut-off; In addition, after disconnecting, consumer also can by normally closed type temperature controller again place in circuit, does not need complete machine to be taken network of maintenance and repair maintenance, consumer can either under abnormal condition timely disconnecting circuit, again can oneself needs use in by circuit communication, global design is reasonable.
Description
Technical field
The utility model belongs to kitchen utensils technical field, especially relates to the improper double protection structures of a kind of electric cooker.
Background technology
Electric cooker in use there will be abnormal condition often; as unstable in external voltage/electric current and the short circuit that causes or inner bag is crooked, electric components fault causes burning machine etc.; the protection safety device mainly thermal cut-off adopted in prior art; namely when electric rice cooker temperature rises; when on stay-warm case, thermal fuse-link temperature sensor reaches setting safeguard protection value; thermal fuse-link fuses; electric cooker input current disconnects stops power supply, and finally plays containment electric cooker and causes machine to burn or breaking out of fire phenomenon because of improper reason.After but thermal cut-off burns fusing, normally can use after needing complete machine to take the thermal fuse-link that network of maintenance and repair more renews, bring greater inconvenience to consumer.And do not have one can either under abnormal condition timely disconnecting circuit, and consumer can oneself when needs use by the safety guard of circuit communication, global design is reasonable not enough, poor practicability.
In order to improve prior art, people have carried out long-term exploration, propose various solution.Such as, Chinese patent literature discloses a kind of electric cooker control circuit [application number: CN201220234076.7], comprise power circuit, it is characterized in that: comprise interconnective protection circuit, on-off circuit, controller, drive circuit and heating circuit successively further; The output of power circuit connects the input of protection circuit; the input of the output connecting valve circuit of protection circuit; the input of the output connection control device of on-off circuit; the output of controller connects the input of drive circuit, and the input that the output of drive circuit connects heating cable comprises further and is connected to controller input for controller and provides the standby power supply module of DC standby power.
Although such scheme to some extent solves the deficiencies in the prior art; under but abnormal condition can not be met timely disconnecting circuit and consumer oneself when needs use by these two conditions of the safety guard of circuit communication; global design is reasonable not enough, poor practicability.
Summary of the invention
The purpose of this utility model is for the problems referred to above, provides a kind of framework reasonable, the improper double protection structures of the simple electric cooker of structure.
For achieving the above object; the utility model have employed following technical proposal: the improper double protection structures of this electric cooker; comprise the thermal cut-off of place in circuit; it is characterized in that; the normally closed type temperature controller being in closure state under normal condition with circuit is provided with in described circuit; described normally closed type temperature controller comprises the temperature sensitive member can responding to body stay-warm case temperature; described temperature sensitive member near or be fixed on body stay-warm case, and normally closed type temperature controller and circuit disconnect when the temperature that temperature sensitive member senses is greater than the break-off signal of setting.Improperly refer to that electric cooker in use, because external voltage/electric current is unstable, cause short circuit or inner bag is crooked, electric components fault and cause faults such as burning machine, connect thermal cut-off at input current end, then access a normally closed type temperature controller, wherein first heavily protection be: when abnormal condition occurs, body stay-warm case surface temperature rises, the temperature sensitive member temperature-sensitive of normally closed type temperature controller is very fast, when sensing that temperature reaches the break-off signal of setting constantly, normally closed type temperature controller can automatic tripping, after the tripping of normally closed type temperature controller, input current disconnects, thus play a protective role, after disconnecting, consumer also can by normally closed type temperature controller again place in circuit, do not need complete machine to be taken network of maintenance and repair maintenance, so the improper double protection structures of this electric cooker can either under abnormal condition timely disconnecting circuit, and consumer can oneself needs use in by circuit communication, second heavily protection be: the inefficacy if normally closed type temperature controller breaks down, body stay-warm case surface temperature still can rise constantly, when rising to the fusing-off temperature of thermal cut-off, thermal cut-off fuses automatically, and after thermal cut-off fusing, input current will disconnect, thus play a protective role, global design is reasonable, and structure is simple, practical.
In the improper double protection structures of above-mentioned electric cooker, the fusing-off temperature of described thermal cut-off is greater than the break-off signal of normally closed type temperature controller.
In the improper double protection structures of above-mentioned electric cooker, described normally closed type temperature controller is provided with the resetting means that can make normally closed type temperature controller reset place in circuit.Resetting means facilitates consumer to be again linked in circuit by normally closed type temperature controller.
In the improper double protection structures of above-mentioned electric cooker; described resetting means comprises lever and to beat mechanism; beat one end of mechanism of described lever is connected with normally closed type temperature controller; be provided with the first gap between the other end and pressing mechanism, and when pressing mechanism presses lever beats mechanism normal enclosed temperature controller place in circuit again.When the tripping of normally closed type temperature controller, due to lever principle, be positioned at normally closed type temperature controller upper lever mechanism of beating and popped up, to be beated mechanism by pressing mechanism presses lever, normally closed type temperature controller will recover closure state again, and electric cooker can normally use, simple to operate, easy to use.
In the improper double protection structures of above-mentioned electric cooker, described lever mechanism of beating comprises lever, and described lever is provided with spring of beating.
In the improper double protection structures of above-mentioned electric cooker, described pressing mechanism comprises pressing lever, and described pressing lever overcoat has return spring pressing lever to upwards pretightning force, and described return spring is fixed on body stay-warm case.Return spring is beneficial to the return of pressing mechanism.
In the improper double protection structures of above-mentioned electric cooker, be arranged with guide cylinder outside described pressing mechanism, described guide cylinder is small top and big bottom structure.Guide cylinder is beneficial to pressing mechanism pressing.
In the improper double protection structures of above-mentioned electric cooker; the outer wall of described pressing lever is provided with the locating piece inserted on return spring; top is provided with and points the pressing plate adapted, and extend radially outwardly ring baffle and the path length of ring baffle of bottom is greater than the path length of guide cylinder end opening.Pressing plate fully contacts with human finger, and improve comfort level during pressing, ring baffle prevents pressing lever from ejecting under the effect of return spring.
In the improper double protection structures of above-mentioned electric cooker, described normally closed type temperature controller is connected with control circuit board, and described control circuit board is connected with the temperature setting module that can set break-off signal.
Compared with prior art, the advantage of the improper double protection structures of this electric cooker is: have duplicate protection, security is higher, wherein first heavily protection be: when abnormal condition occurs, body stay-warm case surface temperature rises, the temperature sensitive member temperature-sensitive of normally closed type temperature controller is very fast, when sensing that temperature reaches the break-off signal of setting constantly, normally closed type temperature controller can automatic tripping, after the tripping of normally closed type temperature controller, input current disconnects, thus play a protective role, after disconnecting, consumer also can by normally closed type temperature controller again place in circuit, do not need complete machine to be taken network of maintenance and repair maintenance, so the improper double protection structures of this electric cooker can either under abnormal condition timely disconnecting circuit, and consumer can oneself needs use in by circuit communication, second heavily protection be: the inefficacy if normally closed type temperature controller breaks down, body stay-warm case surface temperature still can rise constantly, when rising to the fusing-off temperature of thermal cut-off, thermal cut-off fuses automatically, and after thermal cut-off fusing, input current will disconnect, thus play a protective role, global design is reasonable, and structure is simple, practical.
Second, resetting means facilitates consumer to be again linked in circuit by normally closed type temperature controller, more particularly, when the tripping of normally closed type temperature controller, due to lever principle, be positioned at normally closed type temperature controller upper lever mechanism of beating to be popped up, to be beated mechanism by pressing mechanism presses lever, normally closed type temperature controller will recover closure state again, and electric cooker can normally use, simple to operate, easy to use.
3rd, return spring is beneficial to the return of pressing mechanism, and guide cylinder is beneficial to pressing mechanism pressing, and pressing plate fully contacts with human finger, and improve comfort level during pressing, ring baffle prevents pressing lever from ejecting under the effect of return spring.
Accompanying drawing explanation
Fig. 1 is the circuit diagram that the utility model provides:
Fig. 2 is the partial enlarged drawing that the utility model provides;
Fig. 3 is the structured flowchart that the utility model provides;
In figure, thermal cut-off 1, normally closed type temperature controller 2, temperature sensitive member 3, lever are beated mechanism 4, pressing lever 5, return spring 6, pressing plate 7, ring baffle 8, temperature setting module 9, control circuit board 10, pressing mechanism 11, guide cylinder 12.
Detailed description of the invention
Following examples are only in illustrative object, instead of want to limit scope of the present utility model.
Embodiment
As Figure 1-3; the improper double protection structures of this electric cooker comprises the thermal cut-off 1 of place in circuit; the normally closed type temperature controller 2 being in closure state under normal condition with circuit is provided with in circuit; normally closed type temperature controller 2 comprises the temperature sensitive member 3 can responding to body stay-warm case temperature; temperature sensitive member 3 near or be fixed on body stay-warm case, and normally closed type temperature controller 2 and circuit disconnect when the temperature that temperature sensitive member 3 senses is greater than the break-off signal of setting.Improperly refer to that electric cooker in use, because external voltage/electric current is unstable, cause short circuit or inner bag is crooked, electric components fault and cause faults such as burning machine, connect thermal cut-off 1 at input current end, then access a normally closed type temperature controller 2, wherein first heavily protection be: when abnormal condition occurs, body stay-warm case surface temperature rises, temperature sensitive member 3 temperature-sensitive of normally closed type temperature controller 2 is very fast, when sensing that temperature reaches the break-off signal of setting constantly, the automatic tripping of normally closed type temperature controller 2 meeting, after normally closed type temperature controller 2 tripping, input current disconnects, thus play a protective role, after disconnecting, consumer also can by normally closed type temperature controller 2 again place in circuit, do not need complete machine to be taken network of maintenance and repair maintenance, so the improper double protection structures of this electric cooker can either under abnormal condition timely disconnecting circuit, and consumer can oneself needs use in by circuit communication, second heavily protection be: the inefficacy if normally closed type temperature controller 2 breaks down, body stay-warm case surface temperature still can rise constantly, when rising to the fusing-off temperature of thermal cut-off 1, thermal cut-off 1 fuses automatically, and after thermal cut-off 1 fuses, input current will disconnect, thus play a protective role, global design is reasonable, and structure is simple, practical.
Wherein, the fusing-off temperature of thermal cut-off 1 is greater than the break-off signal of normally closed type temperature controller 2.Improve as one, normally closed type temperature controller 2 is provided with and normally closed type temperature controller 2 can be made to reset the resetting means of place in circuit, and resetting means facilitates consumer to be again linked in circuit by normally closed type temperature controller 2.More particularly, resetting means comprises lever and to beat mechanism 4, beat one end of mechanism 4 of lever is connected with normally closed type temperature controller 2, the first gap is provided with between the other end and pressing mechanism 11, and when pressing mechanism 11 presses lever beats mechanism 4 normally closed type temperature controller 2 place in circuit again, when 2 tripping of normally closed type temperature controller, due to lever principle, be positioned at normally closed type temperature controller 2 upper lever mechanism 4 of beating to be popped up, to be beated mechanism 4 by pressing mechanism 11 presses lever, normally closed type temperature controller 2 will recover closure state again, electric cooker can normally use, simple to operate, easy to use.More particularly, lever mechanism 4 of beating comprises lever, and lever is provided with spring of beating.
Pressing mechanism 11 comprises pressing lever 5, and pressing lever 5 overcoat has the return spring 6 pressing lever 5 to upwards pretightning force, and return spring 6 is fixed on body stay-warm case, and return spring 6 is beneficial to the return of pressing mechanism 11.Be arranged with guide cylinder 12 outside pressing mechanism 11, guide cylinder 12 is small top and big bottom structure, and guide cylinder 12 is beneficial to pressing mechanism 11 and presses.The outer wall of pressing lever 5 is provided with the locating piece inserted on return spring 6, top is provided with and points the pressing plate 7 adapted, extend radially outwardly ring baffle 8 and the path length of ring baffle 8 of bottom is greater than the path length of guide cylinder 12 end opening, pressing plate 7 fully contacts with human finger, improve comfort level during pressing, ring baffle 8 prevents pressing lever 5 from ejecting under the effect of return spring 6.Normally closed type temperature controller 2 is connected with control circuit board 10, and control circuit board 10 is connected with the temperature setting module 9 that can set break-off signal.
Specific embodiment described herein is only to the explanation for example of the utility model spirit.The utility model person of ordinary skill in the field can make various amendment or supplements or adopt similar mode to substitute to described specific embodiment, but can't depart from spirit of the present utility model or surmount the scope that appended claims defines.
Although more employ thermal cut-off 1 herein, the terms such as mechanism 4, pressing lever 5, return spring 6, pressing plate 7, ring baffle 8, temperature setting module 9, control circuit board 10, pressing mechanism 11, guide cylinder 12 beated by normally closed type temperature controller 2, temperature sensitive member 3, lever, do not get rid of the possibility using other term.These terms are used to be only used to describe and explain essence of the present utility model more easily; The restriction that they are construed to any one additional is all contrary with the utility model spirit.
The announcement of book and instruction according to the above description, the utility model those skilled in the art can also carry out suitable change and amendment to above-mentioned implementation method.Therefore the utility model is not limited to detailed description of the invention disclosed and described above, also should fall in the protection domain of claim of the present utility model modifications and changes more of the present utility model.In addition, although this specification has used some specific terms, these terms just for convenience of description, do not form any restriction to the utility model.
Claims (9)
1. the improper double protection structures of electric cooker, comprise the thermal cut-off (1) of place in circuit, it is characterized in that, the normally closed type temperature controller (2) being in closure state under normal condition with circuit is provided with in described circuit, described normally closed type temperature controller (2) comprises the temperature sensitive member (3) can responding to body stay-warm case temperature, described temperature sensitive member (3) near or be fixed on body stay-warm case, and normally closed type temperature controller (2) and circuit disconnect when the temperature that temperature sensitive member (3) senses is greater than the break-off signal of setting.
2. the improper double protection structures of electric cooker according to claim 1, is characterized in that, the fusing-off temperature of described thermal cut-off (1) is greater than the break-off signal of normally closed type temperature controller (2).
3. the improper double protection structures of electric cooker according to claim 2, is characterized in that, described normally closed type temperature controller (2) is provided with the resetting means that can make normally closed type temperature controller (2) reset place in circuit.
4. the improper double protection structures of electric cooker according to claim 3; it is characterized in that; described resetting means comprises lever and to beat mechanism (4); beat one end of mechanism (4) of described lever is connected with normally closed type temperature controller (2); be provided with the first gap between the other end and pressing mechanism (11), and when pressing mechanism (11) presses lever beats mechanism (4) normally closed type temperature controller (2) place in circuit again.
5. the improper double protection structures of electric cooker according to claim 4, is characterized in that, described lever mechanism (4) of beating comprises lever, and described lever is provided with spring of beating.
6. the improper double protection structures of electric cooker according to claim 5; it is characterized in that; described pressing mechanism (11) comprises pressing lever (5); described pressing lever (5) overcoat has the return spring (6) pressing lever (5) to upwards pretightning force, and described return spring (6) is fixed on body stay-warm case.
7. the improper double protection structures of electric cooker according to claim 6; it is characterized in that; be arranged with guide cylinder (12) outside described pressing mechanism (11), described guide cylinder (12) is small top and big bottom structure.
8. the improper double protection structures of electric cooker according to claim 7; it is characterized in that; the outer wall of described pressing lever (5) is provided with the locating piece inserted on return spring (6); top is provided with and points the pressing plate (7) adapted, and extend radially outwardly ring baffle (8) and the path length of ring baffle (8) of bottom is greater than the path length of guide cylinder (12) end opening.
9. the improper double protection structures of electric cooker according to claim 8; it is characterized in that; described normally closed type temperature controller (2) is connected with control circuit board (10), and described control circuit board (10) is connected with the temperature setting module (9) that can set break-off signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520374460.0U CN204708587U (en) | 2015-05-29 | 2015-05-29 | The improper double protection structures of a kind of electric cooker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520374460.0U CN204708587U (en) | 2015-05-29 | 2015-05-29 | The improper double protection structures of a kind of electric cooker |
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| Publication Number | Publication Date |
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| CN204708587U true CN204708587U (en) | 2015-10-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520374460.0U Expired - Fee Related CN204708587U (en) | 2015-05-29 | 2015-05-29 | The improper double protection structures of a kind of electric cooker |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107518649A (en) * | 2017-08-11 | 2017-12-29 | 东莞市皓奇企业管理服务有限公司 | Intelligence is anti-to fall household sales counter |
| CN107568965A (en) * | 2017-08-11 | 2018-01-12 | 东莞市皓奇企业管理服务有限公司 | The anti-application method for falling household sales counter of intelligence |
-
2015
- 2015-05-29 CN CN201520374460.0U patent/CN204708587U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107518649A (en) * | 2017-08-11 | 2017-12-29 | 东莞市皓奇企业管理服务有限公司 | Intelligence is anti-to fall household sales counter |
| CN107568965A (en) * | 2017-08-11 | 2018-01-12 | 东莞市皓奇企业管理服务有限公司 | The anti-application method for falling household sales counter of intelligence |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151021 Termination date: 20190529 |
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| CF01 | Termination of patent right due to non-payment of annual fee |