CN101617916B - Automatic detection device for electric heating cooker in pan-free state - Google Patents
Automatic detection device for electric heating cooker in pan-free state Download PDFInfo
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- CN101617916B CN101617916B CN200910108768XA CN200910108768A CN101617916B CN 101617916 B CN101617916 B CN 101617916B CN 200910108768X A CN200910108768X A CN 200910108768XA CN 200910108768 A CN200910108768 A CN 200910108768A CN 101617916 B CN101617916 B CN 101617916B
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Abstract
The invention relates to an automatic detection device for an electric heating cooker in a pan-free state, which has a structure that a cavity is formed by connecting a shell and a pedestal; the cavity is located at the top of the shell and provided with a contact and an upper bracket, and also located on the inner surface of the pedestal and provided with a lower bracket; the lower bracket is provided with a metal sheet for conduction; a spring is supported between the contact and the pedestal; through holes are respectively arranged on the top of the shell, the bottom of the lower bracket and the pedestal; a temperature-sensing element is arranged at the top of the upper bracket and contacts with the contact; two ends of the temperature-sensing element are respectively connected with flexible plates that are arranged on the upper bracket and connected with leads; leads are connected with a control plate; when no pan is on the electric heating cooker, the contact pushes out of the through holes of the shell under the action of the spring, the flexible plates at the bottom of the temperature-sensing element on the upper bracket contact with the metal sheet sleeved on the top of the lower bracket, the temperature-sensing element is in short-circuit, no signal is output, and the circuit is out of work; in addition, when an inner pan is on the electric heating cooker, the inner pan drives the contact to compress the spring to move downwards, such that the flexible plates on the upper bracket are separated from the metal sheet on the lower bracket, signals are output from the temperature-sensing element, and the circuit works normally.
Description
Technical field
The present invention relates to a kind of automatic detection device for electric heating cooker in pan-free state.
Background technology
CN200520134475.6 has announced " a kind of no pot protective device that is used for electric heating cooker "; the main points of this technical scheme are: the described no pot protective device that is used for electric heating cooker; comprise temperature-sensing element and base; also be provided with when not having pot and conductive spacer that temperature-sensing element is arranged in parallel; the lead at temperature-sensing element two ends respectively electrically connects a sheet metal; sheet metal and conductive spacer are separable and touch; temperature-sensing element; lead and sheet metal are embedded in inner supporting member; inner supporting member is provided with flange; one spring is supported between the flange and base of inner supporting member; conductive spacer is fixed in washer seat, and line displacement differs from the following line displacement of conductive spacer under the sheet metal.When not having pot, conductive spacer and sheet metal are close to, and be in parallel with temperature-sensing element by lead, and after the energising, conductive spacer is with the temperature-sensing element short circuit, and program can detect pan-free state.When interior pot puts down, end cap, sheath body and inner supporting member move down, temperature-sensing element, lead and sheet metal are embedded in the inner supporting member, along with inner supporting member moves down, spring and energy-stored spring compression simultaneously, energy-stored spring promotes conductive spacer and washer seat moves down, when arriving base, the lower surface of washer seat stops to move down, inner supporting member and sheath body continue to move down, and sheet metal separates with conductive spacer, and system has judged a pot state, after taking out interior pot, under the effect of spring and energy-stored spring, device returns to original state, and conductive spacer is in parallel with the steady element of sense.Yet its weak point is: complex structure, reliability reduces.
Summary of the invention
Technical problem to be solved by this invention provides a kind of when not having pot, contact is in initial position under the effect of spring, the shell fragment at thermistor two ends contacts with the lower carriage sheet metal, makes the temperature-sensing element short circuit, the output of temperature-sensing element no signal, entire circuit is not worked; When interior pot is put into, interior pot makes contact compression spring and moves downward, thereby the shell fragment at thermistor two ends is not contacted with the lower carriage sheet metal, temperature-sensing element has signal output, temperature-sensing element then is connected the automatic detection device for electric heating cooker in pan-free state of entire circuit operate as normal by lead with the control pcb board.
In order to solve the problems of the technologies described above, automatic detection device for electric heating cooker in pan-free state of the present invention, its special character is: sheath body is connected aftershaping with base be a cavity, the cavity that is positioned at the sheath body top is equipped with contact, this contact inboard is installed with upper bracket, be positioned at base inner surface lower carriage is housed, lower carriage is equipped with the sheet metal that is used for conducting, one spring is supported between contact and the base, described sheath body top, the lower carriage bottom, base offers through hole respectively, wherein: the through hole at sheath body top is for contact, upper bracket wears and can do relative displacement, one temperature-sensing element is located at the upper bracket top, contacts with contact, its two ends connect a shell fragment respectively, shell fragment is contained in respectively on the upper bracket, is connected with lead on the shell fragment respectively, and lead is connected on the control panel; When not having pot, contact ejects the sheath body through hole under spring action, and the set shell fragment in temperature-sensing element bottom on the upper bracket contacts with the sheet metal of lower carriage top suit, thereby make the temperature-sensing element short circuit, at this moment, temperature-sensing element does not have signal output, and entire circuit is not worked; As interior when pot, interior pot makes contact compression spring and moves downward, thereby the shell fragment on the upper bracket is separated with sheet metal on the lower carriage, and at this moment, temperature-sensing element has signal output, entire circuit operate as normal.
Sheath body of the present invention is offered the through hole that passes and can move therein for contact by a goblet under shed, its top and is formed.
Contact of the present invention is made up of an inversion goblet that can pass sheath body top through hole; Contact is made by Heat Conduction Material.
The hypanthial bottom of inversion of the present invention is provided with the member with this inversion goblet vertical epitaxial, and this member constitutes contact and passes and last backstop position when mobile along sheath body top through hole.
The annular table of base lower carriage through hole side is located in backstop position down of the present invention.
Temperature-sensing element of the present invention is a thermistor.
Compared with prior art, the invention has the beneficial effects as follows: only just finished reseting procedure, made simple in structure, safe and reliable with a spring.
Description of drawings
Fig. 1 is the section of structure when pot was put in the present invention did not have.
Fig. 2 is the section of structure when pot was put in the present invention had.
The specific embodiment
The invention will be further described below in conjunction with accompanying drawing:
See also shown in Figure 1, in the present embodiment, described automatic detection device for electric heating cooker in pan-free state, sheath body 1 is connected aftershaping with base 2 be a cavity, the cavity that is positioned at sheath body 1 top is equipped with contact 3, these contact 3 inboards are installed with upper bracket 4, be positioned at base 2 inner surfaces lower carriage 5 is housed, lower carriage 5 is equipped with the sheet metal 51 that is used for conducting, one spring 6 is supported between contact 3 and the base 2, described sheath body 1 top, lower carriage 5 bottoms, base 2 offers through hole 11 respectively, 52,21, wherein: the through hole 11 at sheath body 1 top is for contact 3, upper bracket 4 wears and can do relative displacement, one thermistor 7, be located at upper bracket 4 tops, contact with contact 3, its two ends connect a shell fragment 41A respectively, 41B, each shell fragment 41A, 41B is contained in respectively on the upper bracket 4, shell fragment 41A, the 41B lower end is connected with lead 42A respectively, 42B, lead 42A, 42B is connected respectively on the control panel (not shown).Described sheath body 1 is offered the through hole 11 that passes and can move therein for contact 3 by a goblet 12 under shed, its top and is formed.The described contact of being made by Heat Conduction Material 3 is made up of an inversion goblet 31 that can pass sheath body top through hole 11, the bottom of described inversion goblet 31 is provided with the member 32 with this inversion goblet vertical epitaxial, and this member 32 constitutes contacts and passes and last backstop position when mobile along sheath body top through hole 11.The annular table of base lower carriage through hole 52 sides is located in described backstop position down.
When not having pot, contact 3 ejects sheath body through hole 11 and terminates in the backstop position under spring 6 effects, the set shell fragment 41A in thermistor 7 bottoms, 41B on the upper bracket 4 contact with the sheet metal 51 of lower carriage 5 top suits, thereby make thermistor 7 short circuits, at this moment, thermistor 7 does not have signal output, and entire circuit is not worked.
See also shown in Figure 2, as interior pot 8 o'clock, in pot 8 make contact 3 compression springs 6 and move downward and terminate in the following backstop position that the annular table of base lower carriage through hole 52 sides constitutes, thereby shell fragment 41A, 41B on the upper bracket 4 are separated with sheet metal 51 on the lower carriage 5, at this moment, thermistor 7 has signal output, is connected the entire circuit operate as normal with the pcb board (not shown) by lead 42A, 42B.
The above only is preferred embodiment of the present invention, and all equalizations of being done according to claim scope of the present invention change and modify, and all should belong to the covering scope of claim of the present invention.
Claims (6)
1. automatic detection device for electric heating cooker in pan-free state, it is characterized in that: sheath body is connected aftershaping with base be a cavity, the cavity that is positioned at the sheath body top is equipped with contact, this contact inboard is installed with upper bracket, be positioned at base inner surface lower carriage is housed, lower carriage is equipped with the sheet metal that is used for conducting, one spring is supported between contact and the base, described sheath body top, the lower carriage bottom, base offers through hole respectively, wherein: the through hole at sheath body top is for contact, upper bracket wears, contact and upper bracket in cavity on the backstop position, following backstop is done relative displacement between the position, one temperature-sensing element is located at the upper bracket top, contacts with contact, its two ends connect a shell fragment respectively, shell fragment is contained in respectively on the upper bracket, is connected with lead on the shell fragment respectively, and lead is connected on the control panel; When not having pot, contact ejects the sheath body through hole under spring action, and the set shell fragment in temperature-sensing element bottom on the upper bracket contacts with the sheet metal of lower carriage top suit, thereby make the temperature-sensing element short circuit, at this moment, temperature-sensing element does not have signal output, and entire circuit is not worked; As interior when pot, interior pot makes contact compression spring and moves downward, thereby the shell fragment on the upper bracket is separated with sheet metal on the lower carriage, and at this moment, temperature-sensing element has signal output, entire circuit operate as normal.
2. according to the described automatic detection device for electric heating cooker in pan-free state of claim 1, it is characterized in that: described sheath body is offered the through hole that passes and can move therein for contact by a goblet under shed, its top and is formed.
3. according to the described automatic detection device for electric heating cooker in pan-free state of claim 1, it is characterized in that: described contact is made up of an inversion goblet that can pass sheath body top through hole; Contact is made by Heat Conduction Material.
4. according to the described automatic detection device for electric heating cooker in pan-free state of claim 3, it is characterized in that: the hypanthial bottom of described inversion is provided with the member with this inversion goblet vertical epitaxial, and this member constitutes contact and passes and last backstop position when mobile along sheath body top through hole.
5. according to the described automatic detection device for electric heating cooker in pan-free state of claim 1, it is characterized in that: the annular table of base lower carriage through hole side is located in described backstop position down.
6. according to the described automatic detection device for electric heating cooker in pan-free state of claim 1, it is characterized in that: described temperature-sensing element is a thermistor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910108768XA CN101617916B (en) | 2009-07-16 | 2009-07-16 | Automatic detection device for electric heating cooker in pan-free state |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910108768XA CN101617916B (en) | 2009-07-16 | 2009-07-16 | Automatic detection device for electric heating cooker in pan-free state |
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| Publication Number | Publication Date |
|---|---|
| CN101617916A CN101617916A (en) | 2010-01-06 |
| CN101617916B true CN101617916B (en) | 2011-07-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN200910108768XA Active CN101617916B (en) | 2009-07-16 | 2009-07-16 | Automatic detection device for electric heating cooker in pan-free state |
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| CN (1) | CN101617916B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104797014B (en) * | 2015-04-30 | 2016-06-22 | 佛山市川东磁电股份有限公司 | A kind of integrated sensor |
| CN105757725B (en) * | 2016-03-29 | 2018-06-29 | 广东美的厨房电器制造有限公司 | Gas-cooker |
| CN112864649B (en) * | 2021-01-13 | 2022-01-21 | 珠海格力电器股份有限公司 | Wiring board assembly, electrical box and electrical equipment |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0283591A2 (en) * | 1987-03-22 | 1988-09-28 | E.G.O. Elektro-Geräte Blanc u. Fischer | Electric cooking hob, appliance and method of assembling of a coverplate on the hob |
| FR2752504A1 (en) * | 1996-08-16 | 1998-02-20 | Seb Sa | Heater base for metal-bottomed feeding bottle |
| CN2868124Y (en) * | 2005-12-30 | 2007-02-14 | 浙江苏泊尔家电制造有限公司 | No-pot protecting device for electric cooker heating |
| CN201253144Y (en) * | 2008-04-28 | 2009-06-10 | 颜陶 | Automatic controlled rice cooker |
| CN201416935Y (en) * | 2009-07-16 | 2010-03-03 | 东莞市步步高家用电器有限公司 | Automatic detector for non-pot state of electrical heating cooker |
-
2009
- 2009-07-16 CN CN200910108768XA patent/CN101617916B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0283591A2 (en) * | 1987-03-22 | 1988-09-28 | E.G.O. Elektro-Geräte Blanc u. Fischer | Electric cooking hob, appliance and method of assembling of a coverplate on the hob |
| FR2752504A1 (en) * | 1996-08-16 | 1998-02-20 | Seb Sa | Heater base for metal-bottomed feeding bottle |
| CN2868124Y (en) * | 2005-12-30 | 2007-02-14 | 浙江苏泊尔家电制造有限公司 | No-pot protecting device for electric cooker heating |
| CN201253144Y (en) * | 2008-04-28 | 2009-06-10 | 颜陶 | Automatic controlled rice cooker |
| CN201416935Y (en) * | 2009-07-16 | 2010-03-03 | 东莞市步步高家用电器有限公司 | Automatic detector for non-pot state of electrical heating cooker |
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| Publication number | Publication date |
|---|---|
| CN101617916A (en) | 2010-01-06 |
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Owner name: ZHEJIANG ASD LIVING ELECTRICAL APPLIANCE CO., LTD. Free format text: FORMER OWNER: DONGGUAN BUBUGAO ELECTRICAL APPLIANCES CO., LTD. Effective date: 20110906 |
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Free format text: CORRECT: ADDRESS; FROM: 523860 DONGGUAN, GUANGDONG PROVINCE TO: 314112 JIAXING, ZHEJIANG PROVINCE |
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Effective date of registration: 20110906 Address after: 314112, Qian Tang Road, Huimin street, Jiashan County, Zhejiang Province, 18 Patentee after: Zhejiang Taizhou Aishida Electrical Equipment Co., Ltd. Address before: 523860 Guangdong Province, Dongguan city Changan town usha BBK Avenue P.O. Box 23 Patentee before: Dongguan Bubugao Electrical appliances Co., Ltd. |