CN201416935Y - Automatic detector for non-pot state of electrical heating cooker - Google Patents
Automatic detector for non-pot state of electrical heating cooker Download PDFInfo
- Publication number
- CN201416935Y CN201416935Y CN2009201338734U CN200920133873U CN201416935Y CN 201416935 Y CN201416935 Y CN 201416935Y CN 2009201338734 U CN2009201338734 U CN 2009201338734U CN 200920133873 U CN200920133873 U CN 200920133873U CN 201416935 Y CN201416935 Y CN 201416935Y
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- China
- Prior art keywords
- contact
- upper bracket
- sheath body
- base
- hole
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- Expired - Lifetime
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- Measuring Temperature Or Quantity Of Heat (AREA)
Abstract
The utility model relates to an automatic detector for non-pot state of electrical heating cooker, which comprises a housing and a chamber that is connected and formed with a base. The chamber is placed at the top part of the housing and is equipped with a contact and an upper bracket. The surface in the base is provided with a lower bracket which is equipped with a metal sheet for conducting. A spring is supported between the contact and the base. The top part of the housing, the base part of the lower bracket and the base are respectively provided with a through hole. A temperature sensing component is provided at the top of the upper bracket and contacts with the contact. The two ends of the temperature sensing component are respectively connected with the upper bracket and are respectively connected with a shrapnel with a lead which is connected with a control board. When no port is provided, the contact is ejected out from the through hole of the housing under the function of spring; the shrapnel provided at the base of the temperature sensing component on the upper bracket contacts with the metal sheet sleeved at the top part of the lower bracket; the temperature sensing component is short-circuited, no signal is output and the circuit does not operate. When an inner pot is provided, the inner pot causes the contact to compress the spring for moving downwards so that theshrapnel on the upper bracket is separated from the metal sheet on the lower bracket; the temperature sensing component outputs a signal and the circuit operates normally.
Description
Technical field
The utility model 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.
The utility model content
Technical problem to be solved in the utility model 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 described in the utility model, its special character is: sheath body is connected aftershaping with base be a cavity, this cavity is positioned at the sheath body top contact is housed, 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 described in the utility model is offered the through hole that passes and can move therein for contact by a goblet under shed, its top and is formed.
Contact described in the utility model by one can pass the inversion goblet of sheath body top through hole, the upper bracket that sets firmly in it is formed; Contact is made by Heat Conduction Material.
The sheath body top is located in the backstop position of going up described in the utility model; Described contact is inverted the member that hypanthial bottom was provided with and was inverted the 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 described in the utility model.
Temperature-sensing element described in the utility model is a thermistor.
Compared with prior art, the beneficial effects of the utility model are: only just finished reseting procedure with a spring, made simple in structure, safe and reliable.
Description of drawings
Fig. 1 is the section of structure when pot was put in the utility model did not have.
Fig. 2 is the section of structure when pot was put in the utility model had.
The specific embodiment
The utility model is described in further detail 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, this cavity is positioned at sheath body 1 top contact 3 is housed, 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 making by Heat Conduction Material 3 by one can pass the inversion goblet 31 of sheath body top through hole 11, the upper bracket 4 that sets firmly in it is formed, the bottom that described contact is inverted goblet 31 is provided with and is inverted the member 32 of 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 utility model, and all equalizations of being done according to the utility model claim scope change and modify, and all should belong to the covering scope of the utility model claim.
Claims (6)
1, a kind of 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, this cavity is positioned at the sheath body top contact is housed, 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 by one can pass the inversion goblet of sheath body top through hole, the upper bracket that sets firmly in it is formed; 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 1, it is characterized in that: the sheath body top is located in the described backstop position of going up; Described contact is inverted the member that hypanthial bottom was provided with and was inverted the 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 |
|---|---|---|---|
| CN2009201338734U CN201416935Y (en) | 2009-07-16 | 2009-07-16 | Automatic detector for non-pot state of electrical heating cooker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201338734U CN201416935Y (en) | 2009-07-16 | 2009-07-16 | Automatic detector for non-pot state of electrical heating cooker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201416935Y true CN201416935Y (en) | 2010-03-03 |
Family
ID=41793358
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201338734U Expired - Lifetime CN201416935Y (en) | 2009-07-16 | 2009-07-16 | Automatic detector for non-pot state of electrical heating cooker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201416935Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101617916B (en) * | 2009-07-16 | 2011-07-20 | 东莞市步步高家用电器有限公司 | Automatic detection device for electric heating cooker in pan-free state |
-
2009
- 2009-07-16 CN CN2009201338734U patent/CN201416935Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101617916B (en) * | 2009-07-16 | 2011-07-20 | 东莞市步步高家用电器有限公司 | Automatic detection device for electric heating cooker in pan-free state |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20100303 Effective date of abandoning: 20090716 |