CN201700015U - Electrical heating appliance - Google Patents
Electrical heating appliance Download PDFInfo
- Publication number
- CN201700015U CN201700015U CN2010201923228U CN201020192322U CN201700015U CN 201700015 U CN201700015 U CN 201700015U CN 2010201923228 U CN2010201923228 U CN 2010201923228U CN 201020192322 U CN201020192322 U CN 201020192322U CN 201700015 U CN201700015 U CN 201700015U
- Authority
- CN
- China
- Prior art keywords
- electrical heating
- control circuit
- fuse
- relay
- heating elements
- Prior art date
- 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
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Abstract
The utility model relates to an electrical heating appliance, which comprises an electrical heating element and a control circuit, and a limit temperature fuse is disposed in a main power supply loop of the electrical heating element; an auxiliary thermal fuse is connected in the control circuit in series; a temperature detector is also disposed at the lower part of an inner pot, the temperature detector comprises a casing and a temperature-sensing element disposed in the casing, and the auxiliary thermal fuse is disposed in the casing of the temperature detector; a relay is disposed in the control circuit, and a contact of the relay is in series connection with the electrical heating element; and the auxiliary thermal fuse is connected in an input loop of a control coil of the relay in series. When the limit temperature fuse is disposed in the main power supply loop of the electrical heating appliance fails, the auxiliary fuse can provide auxiliary protection. With the advantages, the utility model can be widely applied to electrical heating appliances such as various electric furnaces, electric cookers, electric pressure cookers, stewpots and electric fry pans.
Description
Technical field
The utility model relates to electrical heated appliances such as a kind of for example electric cooker, electric pressure cooker, electric cooking pot and electric frying pan, comprises interior pot, is arranged on below the described interior pot and/or the electrical heating elements and the control circuit in the outside.
Background technology
The conventional electric heating utensil generally all is that series connection is provided with a warm fuse of limit and comes utensil is realized the protected by temperature limitation function in the main power circuit of electrical heating elements.This structure has only single element to carry out protected by temperature limitation, and when this element broke down, the pressure power down function of heating appliances can not be effectively protected, and has potential safety hazard.
The utility model content
At above-mentioned technical deficiency, the special proposition of the utility model is a kind of simple in structure, practical, has the electrical heated appliance of dual protected by temperature limitation device.
A kind of electrical heated appliance, comprise main power circuit, control circuit and electrical heating elements, described main power circuit provides the heating energy for described electrical heating elements, described control circuit is controlled described electrical heating elements and is opened and closed, and the finite temperature fuse is set in the main power circuit of described electrical heating elements; It is characterized in that, the auxiliary heat fuse is set in described control circuit
The main power circuit of described electrical heating elements, be to point to the electric loop that described electrical heating elements is directly supplied city's electric energy, in traditional control structure, must series connection limit warm fuse on this main power circuit, thereby thereby the temperature of avoiding electrical heated appliance that can self fuse surpasses safe range when the temperature of described electrical heated appliance is too high.
Described control circuit is to the size of the heating process of described electrical heated appliance, opens or cut out the device of being controlled, and in simple traditional control circuit, it includes control relay; In intelligentized control circuit, can also comprise parts such as IC chip and supporting pressure regulation and rectifying and wave-filtering, described relay, IC chip, current rectifying and wave filtering circuit are formed the major control signal circuit of described control circuit.The contact of described relay is connected in the main power circuit of described electrical heating elements, and the control coil of described relay is connected in the control signal loop of described control circuit.
Described auxiliary heat fuse is arranged in the described control circuit, be meant that described auxiliary heat fuse is connected in the major control signal circuit of described control circuit in the mode of series connection, for example electric power loop of the control loop of the input and output loop of current rectifying and wave filtering circuit, relay control coil, IC chip etc. perhaps is connected the control port of control chip IC etc.
Because described auxiliary fuse has two lead-in wires equally, lead terminal that for this reason can described auxiliary fuse is set to plug in construction, and can be plugged on the wiring board of described control circuit, thereby is convenient to maintenance and diagnosis.
Secondly in order to make the control best results of described auxiliary fuse, preferably described auxiliary fuse is provided with described electrical heating elements of distance and the closer place of pan, described pan is the device that splendid attire is heated food or water; Wherein a kind of scheme of selection is that described auxiliary fuse is provided with in the housing of temperature detector of described electrical heated appliance.Described temperature detector is mainly used in the working temperature of the described electrical heating elements of sensing and pan, particularly described pan, and described temperature detector is electrically connected with described control circuit.
According to above-mentioned loop structure, when malfunctioning being failure to actuate of described limit temperature fuse, described auxiliary fuse can fuse, and cuts off the control signal in the control loop of described electrical heating elements, thereby makes the main power circuit dead electricity of described electrical heating elements; Be compared with the prior art, can reach the purpose of the working temperature of the described electrical heated appliance of auxiliary restriction, more effectively prevent security incident.
Owing to the utlity model has above-mentioned advantage, can be widely used in family expenses electrical heated appliances such as various electric ovens, electric cooker, electric pressure cooker, electric cooking pot and electric frying pan.
Description of drawings
Fig. 1 is the mounting structure schematic diagram that is provided with the electrical heated appliance of described auxiliary fuse;
Fig. 2 is for receiving described auxiliary fuse the circuit theory diagrams of port of the control chip I C of described control circuit;
Fig. 3 is the circuit theory diagrams in the rectification filtering circuit that described auxiliary fuse is arranged on described control circuit;
Fig. 4 is the circuit theory diagrams in the relay circuit that described auxiliary fuse is arranged on described control circuit.
Embodiment
Below in conjunction with accompanying drawing, further specify the specific embodiment of the present invention.
As shown in Figure 1, a kind of electrical heated appliance comprises pan 1, is positioned at the electric hot plate 2 below the pan 1, is provided with electrical heating elements 21 in the described electric hot plate 2 and is positioned at outer pot diapire 3 below the described electric hot plate 2; Described electric hot plate 2 is supported on the outer pot diapire 3 by leg.Described pan 1 is the device that splendid attire is heated food or water, it can be set directly at described electric hot plate 2 above, also can be isolated by other aid in heat transfer platform.
Central part at described electric hot plate 2 is provided with centre bore, and the temperature detector 4 of described electrical heated appliance is set in the centre bore, and described temperature detector 4 is electrically connected with described control circuit; Described temperature detector 4 has housing 41 and is contained in the interior temperature-sensitive head of described housing.On housing 41 inwalls of described temperature detector 4, be fixed with auxiliary fuse 6.
The top of described outer pot diapire 3 is provided with control circuit board 5, and described control circuit board 5 includes the control circuit that transformer T, current rectifying and wave filtering circuit ZL, control chip IC and relay R L form.The signal lead of described auxiliary fuse 6 is plugged on the described control circuit board 5 with inserting mode.
As shown in Figure 2, the main power circuit of described electrical heating elements 21 comprises the electrical heating elements H of series connection, the contact of relay R L, and the series loop that they are formed is connected two input endpoints of main power source.Series connection finite temperature fuse F1-t in the described main power circuit.If the temperature below pan inside or the pan is too high like this, main power source is cut off in described limit temperature fuse F1-t fusing, and electrical heating elements H and control circuit etc. all quit work, and realize safeguard protection.
As shown in Figure 2, latter linked transformer T, current rectifying and wave filtering circuit ZL, control chip IC before described control circuit includes.Wherein connect the control coil of described relay R L on first pair of signal output port of described control chip IC, secondly two lead-in wires with described auxiliary fuse F2-t are connected on second pair of signal output port of described control chip IC.Like this when described auxiliary fuse F2-t fuses; described control chip IC stops to send signal to described first pair of port; cut off the signal of telecommunication of the control coil of described relay R L; the contact of described relay R L disconnects; cut off the main power circuit of described electrical heating elements H, thereby the temperature that arrives the described electrical heated appliance of auxiliary protection can not surpass safe range.
As shown in Figure 3, described auxiliary fuse F2-t is connected in the output loop of current rectifying and wave filtering circuit ZL.Like this when described auxiliary fuse F2-t fusing, thereby directly cut off the main power circuit that the power supply of back device cuts off described electrical heating elements H.
As shown in Figure 4, described auxiliary fuse F2-t is connected in the control coil control loop of described relay R L.Like this when described auxiliary fuse F2-t fusing, thereby directly cut off the main power circuit that the power supply of back device cuts off described electrical heating elements H.
Claims (5)
1. electrical heated appliance, comprise main power circuit, control circuit and electrical heating elements, described main power circuit provides the heating energy for described electrical heating elements, described control circuit is controlled described electrical heating elements and is opened and closed, and the finite temperature fuse is set in the main power circuit of described electrical heating elements; It is characterized in that, the auxiliary heat fuse is set in described control circuit.
2. electrical heated appliance according to claim 1 is characterized in that: also comprise temperature detector, described temperature detector is electrically connected with described control circuit; Described temperature detector includes housing and is arranged on the interior temperature-sensitive head of described housing, and described auxiliary heat fuse is arranged in the housing of described temperature detector.
3. electrical heated appliance according to claim 2 is characterized in that: on the inwall in the housing that is arranged on described temperature detector of described auxiliary heat fuse.
4. electrical heated appliance according to claim 1 is characterized in that: being provided with relay in the described control circuit, connects with described electrical heating elements in the contact of described relay; Described auxiliary heat fuse is connected in the input circuit of control coil of described relay.
5. according to claim 1,2,3 or 4 described electrical heated appliances, it is characterized in that: the lead-in wire of described auxiliary heat fuse is plugged on the wiring board of described control circuit by inserting mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201923228U CN201700015U (en) | 2010-05-13 | 2010-05-13 | Electrical heating appliance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201923228U CN201700015U (en) | 2010-05-13 | 2010-05-13 | Electrical heating appliance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201700015U true CN201700015U (en) | 2011-01-05 |
Family
ID=43401262
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201923228U Expired - Fee Related CN201700015U (en) | 2010-05-13 | 2010-05-13 | Electrical heating appliance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201700015U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014166097A1 (en) * | 2013-04-12 | 2014-10-16 | 深圳市润唐智能生活电器有限公司 | Electric heating cooking utensil |
| CN108903604A (en) * | 2018-09-12 | 2018-11-30 | 珠海格力电器股份有限公司 | Electric cooker |
-
2010
- 2010-05-13 CN CN2010201923228U patent/CN201700015U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014166097A1 (en) * | 2013-04-12 | 2014-10-16 | 深圳市润唐智能生活电器有限公司 | Electric heating cooking utensil |
| CN108903604A (en) * | 2018-09-12 | 2018-11-30 | 珠海格力电器股份有限公司 | Electric cooker |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 528200 Foshan, China, Nanhai District, Songgang Industrial Park, Industrial Park Road West Patentee after: DEA GENERAL AVIATION CO., LTD. Address before: 528234 Foshan, China, Nanhai District, Songgang Industrial Park, Industrial Park Road West Patentee before: Guangdong Elecpro Electric Appliance Holding Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110105 Termination date: 20160513 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |