Multipurpose electric food warmer with firepower easy to select and control

Abstract

The utility model relates to a multipurpose electric food warmer with firepower easy to select and control. The firepower is easy to control. Four split ring electric heating tubes are arranged at the bottom of the electric food warmer; a first lamp display switch, a third lamp display switch, a second lamp display switch and a fourth lamp display switch are arranged on the base of the electric food warmer from inside to outside; one connecting electrode of the power socket is electrically connected with one wiring end of each electric heating tube through a thermal fuse, and the other connecting electrode of the power socket is electrically connected with the access ends of the first lamp display switch and the third lamp display switch from inside to outside through the temperature control switch; the output ends of the first and third lamp display switches from inside to outside are respectively and electrically connected with the other terminals of the first and third electric heating tubes and are respectively and electrically connected with the second and fourth access ends of the second and fourth parallel lamp display switches; and the second and fourth output ends of the second and fourth parallel lamp display switches are respectively and electrically connected with the other terminals of the second and fourth electric heating tubes. And the effect of conveniently selecting and controlling the heating area and the fire power is achieved by using an extremely simple control mode.

Description

TECHNICAL FIELD

[0001] The utility model relates to a electric warmer, in particular to a multi-purpose electric warmer with easy fire power selection and control. BACKGROUND

[0002] The early electric warmer adopts three open ring electric heating tubes with aluminum bottom and inner and outer ring spacing, and people find that the three open ring electric heating tube heating pot bottom area is very limited in long-term use. Due to the aluminum bottom and the electric heating tube technology progress, then the four open ring electric heating tube type electric warmer with large heating area appears, and then the six open ring electric heating tube type electric warmer with larger heating area appears. However, since the electric warmer belongs to a simple electric heater, it is not suitable to configure complex and expensive control devices, so that the existing electric warmer tolerates the one tube one switch control mode of inconvenient operation or adopts the adjacent adjacent odd and even number two tube mode, and the two kinds of existing control modes have the problem of not easy to select and control the fire power. SUMMARY

[0003] The utility model aims at overcoming the above-mentioned defects of prior art, and provides a multi-purpose electric warmer with easy fire power selection and control.

[0004] The utility model discloses a multi-purpose electric heating pot of easy fire power selection control, which is characterized in that four open ring electric heating tubes are arranged in the inner and outer rings of the bottom annular aluminum covering of the electric heating pot, a thermal fuse and a temperature control switch are arranged in the central area of the aluminum covering of the bottom surface of the electric heating pot, a power socket is arranged on the base of the electric heating pot, and an inner-to-outer first and third lamp display switch and a second and fourth parallel lamp display switch are arranged opposite or vertically adjacent to the power socket; one pole of the power socket is electrically connected to one terminal of all the electric heating tubes through the thermal fuse, the other pole of the power socket is electrically connected to the input terminal of the inner-to-outer first and third lamp display switch through the temperature control switch, the output terminal of the inner-to-outer first and third lamp display switch is electrically connected to the other terminal of the inner-to-outer first and third electric heating tubes and the second and fourth input terminals of the second and fourth parallel lamp display switch respectively, and the second and fourth output terminals of the second and fourth parallel lamp display switch are electrically connected to the other terminals of the second and fourth electric heating tubes respectively. The electric heating tube can be a conventional type of electric heating wire fixed or sealed in a ferrous sleeve with a heat-resistant insulation layer or a new type of electric heating wire fixed or sealed in a ferrous sleeve with an aluminum sleeve layer and a heat-resistant insulation layer. In this way, the inner-to-outer first and third lamp display switch can be used to turn on or off any number of the inner-to-outer first and third electric heating tubes, so as to realize the selection control of the heating area and the heating intensity; on this basis, the second and fourth parallel lamp display switch can be used to add or remove the adjacent even-numbered electric heating tubes after the odd-numbered electric heating tubes are turned on, so as to realize the selection control of the heating intensity of strong fire. Compared with the existing one-tube-one-switch control mode, although one switch is less, it is more convenient to select and control the heating area and the fire; compared with the existing one-switch control mode of adjacent odd and even two tubes, although one switch is more, the excellent technical effect of particularly convenient selection and control of the heating area and the fire is achieved. It is common to achieve complex technical effects by complex technical means, and it is a miracle to achieve complex technical effects by simple technical means. The utility model has the effect of particularly convenient selection and control of the heating area and the fire by extremely simplified control mode.

[0005] The utility model discloses a multi -purpose electric food warmer of easy selection control firepower, its speciality lies in the four open ring electric heating tube of inside and outside circle interval is arranged in the annular aluminium covering bottom of electric food warmer bottom, and the centre area in the aluminium covering bottom of electric food warmer bottom surface is provided with thermal insurance and temperature control switch, and the power socket is provided on the electric food warmer base and is opposite or perpendicular adjacent to the inside to the outside one, three lamp display switch and two four total control lamp display switch. One electrode of power socket is connected with the one end of all electric heating tube through the thermal insurance, and the other electrode of power socket is connected with the access end of inside to the outside one, three lamp display switch and the access end of two four total control lamp display switch through the temperature control switch, and the other end of inside to the outside one, three lamp display switch is connected with the other end of inside to the outside one, three electric heating tube respectively, and the other end of two four total control lamp display switch is connected with the other end of two four electric heating tube. The electric heating tube can be the traditional type of the heat -resistant insulating layer and the fixed or sealed fixed electric heating wire in the iron sleeve pipe, and also can be the new type of the aluminium sleeve layer and the fixed or sealed fixed electric heating wire in the heat -resistant insulating layer in the iron sleeve pipe. In this way, through the control inside to the outside one, three lamp display switch, the inside to the outside one, three electric heating tube can be turned on or turned off, thereby realizing the heating area and heating intensity selection control for weak firepower, and on this basis, through the control two four total control lamp display switch, two four electric heating tube can be added or cancelled, thereby realizing the heating intensity selection control for strong firepower. Compared with the present one pipe one switch control mode, although one switch is less, but it is more convenient to select and control the heating area and firepower; compared with the present one switch control adjacent odd and even number two pipe mode, although one switch is more, but the excellent technical effect of especially convenient selection and control of heating area and firepower is obtained; compared with the foregoing, the one key addition and cancellation of all two four electric heating tube firepower of two four total control lamp display switch can be realized. It is very common to obtain complex technical effect by complex technical means, and it is a miracle to obtain complex technical effect by simple technical means. It has extremely simplified control mode, and the effect of especially convenient selection and control of heating area and firepower is obtained.

[0006] As optimization, the inside to the outside one, three lamp display switch and two four parallel lamp display switch or two four total control lamp display switch are sequentially and adjacently arranged on the front edge wall opposite the power socket through the sequentially spaced clamping grooves. It is convenient to manufacture, set and control. The front edge wall is provided with a water baffle in front of the inside to the outside one, three lamp display switch and two four parallel lamp display switch or two four total control lamp display switch. It can avoid water intrusion into the switch.

[0007] As optimization, the openings of the one and two open ring electric heating tubes and the three and four open ring electric heating tubes are oppositely arranged respectively, and the connection lines in the openings of the one and two open ring electric heating tubes are perpendicular or oblique to the connection lines in the openings of the three and four open ring electric heating tubes, which helps to prevent uneven heating. The electric food warmer bottom provided with the electric heating tubes is flat or arc convex, the electric heating tubes are arranged at low cost on the flat bottom, and the electric heating tubes are more dense on the arc convex bottom compared with the flat bottom, and the firepower per unit of the bottom horizontal surface is stronger.

[0008] The utility model discloses a multi-purpose electric food warmer of easy fire power selection control, which is characterized in that the electric food warmer bottom annular aluminum covering bottom is provided with six or more even 2X channel opening ring electric heating tubes between the inner and outer rings, the electric food warmer bottom surface is provided with thermal fuse and temperature control switch in the center area of the aluminum covering bottom, the electric food warmer base is provided with power socket, and adjacent inner to outer odd channel light display switch and inner to outer even channel parallel light display switch are opposite or perpendicular to the power socket; one pole of the power socket is electrically connected to one wire end of the inner to outer odd channel electric heating tube through the thermal fuse, the other pole of the power socket is electrically connected to the access end of all light display switches through the temperature control switch, the outgoing end of the inner to outer odd channel light display switch is respectively electrically connected to the other wire end of the inner to outer odd channel electric heating tube and the inner to outer even channel access end of the inner to outer even channel parallel light display switch, and the inner to outer even channel outgoing end of the inner to outer even channel parallel light display switch is respectively electrically connected to the other wire end of the inner to outer even channel electric heating tube. The electric heating tube can be the traditional type of iron sleeve pipe with heat-resistant insulation layer and fixed or sealed fixed electric heating wire or the new type of iron sleeve pipe with aluminum sleeve layer and heat-resistant insulation layer and fixed or sealed fixed electric heating wire. In this way, the inner to outer arbitrary odd channel light display switch can be controlled to turn on or off the inner to outer arbitrary odd channel electric heating tube, so as to realize the selection control of the heating area and heating power of weak fire power. On this basis, the even channel parallel light display switch can be controlled to add or delete the adjacent even electric heating tube after the aforementioned single electric heating tube is turned on, so as to realize the selection control of the heating power of strong fire power. Compared with the current one tube one switch control mode, although the number of switches is obviously reduced, the heating area and fire power are more convenient to select and control; compared with the current one switch control adjacent odd and even two tube mode, although one more switch is added, the excellent technical effect of particularly convenient selection and control of the heating area and fire power is achieved. It is very common to obtain complex technical effect by complex technical means, and it is a miracle to obtain complex technical effect by simple technical means. The extremely simplified control mode is used to achieve the effect of particularly convenient selection and control of the heating area and fire power.

[0009] The utility model discloses a multi-purpose electric food warmer of easy fire power selection control, which is characterized in that the annular aluminum bottom of the electric food warmer is provided with more than six even 2X channel open ring electric heating tubes between the inner and outer rings, a thermal fuse and a temperature control switch are arranged in the center area of the aluminum bottom, a power socket and a plurality of odd channel light display switches and even channel light display switches are arranged on the base of the electric food warmer, one pole of the power socket is connected to one end of all the electric heating tubes through the thermal fuse, the other pole of the power socket is connected to the input end of all the light display switches through the temperature control switch, the output end of the odd channel light display switches is connected to the other end of the odd channel electric heating tubes, and the output end of the even channel light display switches is connected to the other end of the even channel electric heating tubes.

[0010] As an optimization, the number of the open ring electric heating tubes is six or eight. Six channels can meet the needs of most strong fire heating, and eight channels can meet the needs of a few super strong fire heating. The bottom of the electric food warmer provided with the electric heating tubes is flat or arc convex, and the electric heating tubes are arranged more densely on the arc convex bottom than on the flat bottom, and the unit bottom horizontal plane fire is stronger.

[0011] As an optimization, the base of the electric food warmer is provided with a plurality of odd channel light display switches and even channel light display switches on the front wall opposite to the power socket through a plurality of card slots arranged in sequence. This can facilitate the manufacture, arrangement and operation of the switches.

[0012] As an optimization, the openings of the odd-numbered front channels and the adjacent even-numbered rear channels of the open-ring heating tube are arranged opposite each other, and the lines connecting all the openings of the odd-numbered front channels and the adjacent even-numbered rear channels are not parallel to each other. This helps to prevent uneven heating.

[0013] As an optimization, the adjacent angles between the lines connecting the openings of all odd-numbered tracks to the adjacent even-numbered tracks are the same or similar. This helps to prevent uneven heating.

[0014] After adopting the above technical solution, the multi-purpose electric hot pot of this utility model with easy-to-select and controllable firepower has an extremely simplified control method, which achieves the effect of particularly convenient selection and control of heating area and firepower. Attached Figure Description

[0015] Figure 1 This is a circuit diagram of the first embodiment of the multi-purpose electric hot pot with easy-to-select and controllable heat. Figure 2 This is a bottom view of the bottom of the pot and the base after removing the bottom plate, which is a schematic diagram of the first embodiment of the multi-purpose electric hot pot with easy-to-select and controllable fire. Figure 3 This is a circuit diagram of the second embodiment of the multi-purpose electric hot pot with easy-to-select and controllable heat. Figure 4 This is a circuit diagram of the third embodiment of the multi-purpose electric hot pot with easy-to-select and controllable heat. Figure 5 This is a circuit diagram of the fourth embodiment of the multi-purpose electric hot pot with easy-to-select and controllable heat. Detailed Implementation

[0016] Example 1, as Figures 1-2As shown in the utility model, the multi-purpose electric food warmer with the dry-out-preventing water seal device at the lower outlet is provided with four open ring electric heating pipes which are arranged in the inner and outer circles of the annular aluminum covered bottom of the electric food warmer bottom 1, the thermal fuse 20 and the temperature control switch 21 are arranged in the center area of the aluminum covered bottom on the surface of the electric food warmer bottom 1, the power socket 9 and the one-to-three parallel light display switches 31, 32 and the two-to-four parallel light display switches 34 which are vertically adjacent to the power socket 9 (or opposite to the power socket 9) are arranged on the electric food warmer base 10; one electrode of the power socket 9 is electrically connected to one wire end of all the electric heating pipes through the thermal fuse 20, the other electrode of the power socket 9 is electrically connected to the access ends of the one-to-three parallel light display switches 31, 32 through the temperature control switch 21, the exit ends of the one-to-three parallel light display switches 31, 32 are respectively electrically connected to the other wire ends of the one-to-three electric heating pipes 11, 13 and the two-to-four access ends of the two-to-four parallel light display switches 34, and the two-to-four exit ends of the two-to-four parallel light display switches 34 are respectively electrically connected to the other wire ends of the two electric heating pipes 12 and the four electric heating pipes 14. The electric heating pipes can be the traditional type of the electric heating wire which is fixed or sealed in the iron sleeve pipe with the heat-resistant insulation layer or the new type of the electric heating wire which is fixed or sealed in the iron sleeve pipe with the aluminum sleeve layer and the heat-resistant insulation layer. In this way, the one-to-three parallel light display switches can be controlled to turn on or turn off any number of the one-to-three electric heating pipes, so that the heating area and the heating intensity can be controlled; on this basis, the two-to-four parallel light display switches can be controlled to add or remove the adjacent even number of electric heating pipes after the odd number of electric heating pipes are turned on, so that the heating intensity can be controlled. Compared with the one-pipe-one-switch control mode, although one switch is less, the heating area and the heating intensity can be more conveniently controlled; compared with the one-switch control mode of the adjacent odd and even number of two pipes, although one switch is more, the heating area and the heating intensity can be more conveniently controlled. It is a miracle to obtain a complex technical effect by using a simple technical means.

[0017] Specifically, the one-to-three parallel light display switches 31, 32 and the two-to-four parallel light display switches 34 are sequentially and adjacently arranged on the front edge wall of the electric food warmer base 10 on the side opposite to the power socket 9 through the sequentially spaced clamping grooves. More specifically, the front edge wall is provided with the water baffle 3 in the forward direction on the one-to-three parallel light display switches 31, 32 and the two-to-four parallel light display switches 34.

[0018] Specifically, the openings of the one-to-two open ring electric heating pipes 11, 12 and the three-to-four open ring electric heating pipes 13, 14 are respectively arranged opposite to each other, and the connecting lines in the openings of the one-to-two open ring electric heating pipes 11, 12 are perpendicular to the connecting lines in the openings of the three-to-four open ring electric heating pipes 13, 14, or they can be oblique. The electric food warmer bottom provided with the electric heating pipes can be a flat bottom or an arc convex bottom.

[0019] Example 2, as Figure 3 As shown, the difference between the drain anti-drying water seal device of this utility model and the above-mentioned embodiment 1 is that a power socket and the inner-to-outer first and third light indicator switches 31 and 32 and the second and fourth main control light indicator switch 35 are provided on the electric heating pot base; one electrode of the power socket is electrically connected to one terminal of all the electric heating tubes through the thermal fuse 20, and the other electrode of the power socket is electrically connected to the input terminal of the inner-to-outer first and third light indicator switches 31 and 32 and the input terminal of the second and fourth main control light indicator switch 35 through the temperature control switch 21. The output terminals of the inner-to-outer first and third light indicator switches 31 and 32 are respectively electrically connected to the other terminals of the inner-to-outer first and third electric heating tubes 11 and 13, and the output terminal of the second and fourth main control light indicator switch 35 is electrically connected to the other terminals of the second and fourth electric heating tubes 12 and 14. The heating element can be a traditional type with an iron sleeve containing a heat-resistant insulating layer and a fixed or sealed heating wire, or a novel type with an iron sleeve containing an aluminum sleeve, then another heat-resistant insulating layer and a fixed or sealed heating wire. Thus, by controlling the innermost and outermost three indicator switches, any number of innermost and outermost heating elements can be switched on and off, thereby achieving selective control of the heating area and intensity for weak heat output. Furthermore, by controlling the second and fourth master control indicator switches, additional second and fourth heating elements can be added or removed at once, thereby achieving selective control of the heating intensity for strong heat output. Compared to the existing one-element-one-switch control method, although one switch is eliminated, it makes it more convenient to select and control the heating area and intensity. Compared to the existing method of controlling two adjacent odd-even numbers of heating elements with one switch, although one more switch is added, it achieves a superior technical effect of particularly convenient selection and control of the heating area and intensity. Compared to the above, it can achieve one-button addition and removal of the heat output of all second and fourth heating elements using the second and fourth master control indicator switches. Achieving complex effects using complex technologies is common; achieving complex effects using simple technologies is truly remarkable. This technology allows for exceptionally convenient selection and control of heating zones and heat output through extremely simplified control methods.

[0020] Specifically, on the front wall opposite the power socket of the electric hot pot base, adjacent to each other via spaced slots, are sequentially arranged inner and outer first and third indicator switches 31 and 32, and a second and fourth master indicator switch 35. More specifically, a water-retaining eave is provided on the front wall above the inner and outer first and third indicator switches 31 and 32 and the second and fourth master indicator switches 35.

[0021] Example 3, as Figure 4The utility model discloses a lower water mouth dry -up prevention water seal device is the electric heating pot bottom annular aluminium covering bottom setting inner and outer circle interval six -way open ring electric heating tube, the electric heating pot bottom surface sets up thermal cut -out 20 and temperature control switch 21 in the centre area of aluminium covering bottom, and the electric heating pot base is provided with power socket and with it opposite (also can be vertical adjacent) inner to outer one, three, five -way light display switch 31, 32, 33 and two, four, six -way parallel light display switch 36, one pole of power socket is connected to one terminal of inner to outer one to six -way electric heating tube 11, 12, 13, 14, 15, 16 through the thermal cut -out 20, and the other pole of power socket is connected to the access end of inner to outer one, three, five -way light display switch 31, 32, 33 through the temperature control switch 21, and the outgoing end of inner to outer one, three, five -way light display switch 31, 32, 33 is connected to the other terminal of inner to outer one, three, five -way electric heating tube 11, 13, 15 respectively and the inner to outer two, four, six -way access end of inner to outer two, four, six -way parallel light display switch 36 respectively, and the inner to outer two, four, six -way outgoing end of inner to outer two, four, six -way parallel light display switch 35 is connected to the other terminal of inner to outer even two, four, six -way electric heating tube 12, 14, 16 respectively.The electric heating tube can be the traditional type of iron sleeve pipe in the heat -resistant insulating layer and its fixed or sealed fixed electric heating wire, and can be the new type of iron sleeve pipe in the aluminium sleeve layer and its fixed or sealed fixed electric heating wire.The electric heating tube can be the traditional type of iron sleeve pipe in the heat -resistant insulating layer and its fixed or sealed fixed electric heating wire, and can be the new type of iron sleeve pipe in the aluminium sleeve layer and its fixed or sealed fixed electric heating wire.Thus, by operating any odd -numbered light display switch, any multiple of any odd -numbered electric heating tube can be turned on and off, thereby realizing the selection and control of the heating area and the heating intensity;On this basis, by operating the even -numbered parallel light display switch, the adjacent even -numbered electric heating tube after the aforementioned opening of the odd -numbered electric heating tube can be added and removed, thereby realizing the selection and control of the strong heating intensity.Compared with the existing one -tube one -switch control mode, although there are fewer switches, it is more convenient to select and control the heating area and the fire;Compared with the existing one -switch control adjacent odd -even two -tube mode, although there is an additional switch, the excellent technical effect of particularly convenient selection and control of the heating area and the fire is achieved.Using complex technical means to obtain complex technical effect is very common, and using simple technical means to obtain complex technical effect is a miracle.The utility model discloses a lower water mouth dry -up prevention water seal device is the electric heating pot bottom annular aluminium covering bottom setting inner and outer circle interval six -way open ring electric heating tube, the electric heating pot bottom surface sets up thermal cut -out 20 and temperature control switch 21 in the centre area of aluminium covering bottom, and the electric heating pot base is provided with power socket and with it opposite (also can be vertical adjacent) inner to outer one, three, five -way light display switch 31, 32, 33 and two, four, six -way parallel light display switch 36, one pole of power socket is connected to one terminal of inner to outer one to six -way electric heating tube 11, 12, 13, 14, 15, 16 through the thermal cut -out 20, and the other pole of power socket is connected to the access end of inner to outer one, three, five -way light display switch 31, 32, 33 through the temperature control switch 21, and the outgoing end of inner to outer one, three, five -way light display switch 31, 32, 33 is connected to the other terminal of inner to outer one, three, five -way electric heating tube 11, 13, 15 respectively and the inner to outer two, four, six -way access end of inner to outer two, four, six -way parallel light display switch 36 respectively, and the inner to outer two, four, six -way outgoing end of inner to outer two, four, six -way parallel light display switch 35 is connected to the other terminal of inner to outer even two, four, six -way electric heating tube 12, 14, 16 respectively.

[0022] Specifically, on the front wall opposite the power socket of the electric pot base, sequentially arranged with adjacent, spaced-out light indicator switches 31, 32, and 33 (inner to outermost, first, third, and fifth channels) and 36 (inner to outermost, second, fourth, and sixth channels in parallel) via slots, a water-retaining rim is provided above the inner to outermost light indicator switches 31, 32, and 33 and the inner to outermost, second, fourth, and sixth channels in parallel. Further specifically, the openings of the odd-numbered channels of the open-ring heating element are opposite to the openings of the adjacent even-numbered channels, and the lines connecting all pairs of odd-numbered channels and adjacent even-numbered channels are not parallel. More specifically, the adjacent angles of the lines connecting all pairs of odd-numbered channels and adjacent even-numbered channels are the same or similar. The bottom of the electric pot with the heating element is flat or can be convex.

[0023] Example 4, as Figure 5 As shown, the difference between the drain anti-drying water seal device of this utility model and the above-mentioned embodiment 3 is that a power socket is provided on the electric heating pot base and the corresponding (or vertically adjacent) inner-to-outer first, third, and fifth channel indicator switches 31, 32, and 33, and the inner-to-outer second, fourth, and sixth channel master control indicator switch 37; one electrode of the power socket is electrically connected to one terminal of all the heating tubes through the thermal fuse 20, and the other electrode of the power socket is electrically connected to the input terminal of all the indicator switches through the temperature control switch 21. The output terminals of the inner-to-outer first, third, and fifth channel indicator switches 31, 32, and 33 are respectively electrically connected to the other terminals of the inner-to-outer first, third, and fifth channel heating tubes 11, 13, and 15, and the output terminal of the inner-to-outer second, fourth, and sixth channel master control indicator switch 37 is electrically connected to the other terminals of the inner-to-outer second, fourth, and sixth channel heating tubes 12, 14, and 16. The heating element can be a traditional type with an iron sleeve containing a heat-resistant insulating layer and a heating wire fixed or sealed within it, or a novel type with an iron sleeve containing an aluminum sleeve, which in turn contains a heat-resistant insulating layer and a heating wire fixed or sealed within it. Thus, by controlling any number of odd-numbered indicator switches from the inside out, any number of odd-numbered heating elements from the inside out can be switched on or off, thereby achieving selective control of the heating area and intensity for weak heat output. Furthermore, by controlling the even-numbered master control indicator switches, all even-numbered heating elements can be added or removed, thereby achieving selective control of the heating intensity for strong heat output. Compared to the existing one-element-one-switch control method, although there are significantly fewer switches, it is more convenient to select and control the heating area and intensity. Compared to the existing method of controlling two adjacent odd- or even-numbered heating elements with one switch, although there is one more switch, it achieves a superior technical effect of particularly convenient selection and control of the heating area and intensity. Compared to the above, it can achieve one-button addition and removal of the heat output of all even-numbered heating elements with a two- or four-way master control indicator switch. Achieving complex effects using complex technologies is common; achieving complex effects using simple technologies is truly remarkable. This technology allows for exceptionally convenient selection and control of heating zones and heat output through extremely simplified control methods.

[0024] Specifically, the electric heating pot base is provided with the first, third and fifth light display switches 31, 32 and 33 and the even-numbered total control light display switches 37 on the front side wall opposite to the power socket by the sequentially spaced card slots from inside to outside; the front side wall is provided with the water baffle on the first, third and fifth light display switches 31, 32 and 33 and the even-numbered total control light display switches 37 in the forward direction.

[0025] In summary, the multi-purpose electric heating pot with easy selection and control of firepower has an extremely simplified control mode, and achieves the effect of particularly convenient selection and control of heating area and firepower.

Claims

1. A multi-purpose electric food warmer with easy power control, characterized in that The electric heating pot bottom ring-shaped aluminum bottom sets four open ring electric heating pipes with inner and outer circle spacing, the electric heating pot bottom surface sets thermal insurance and temperature control switch in the center area of the aluminum bottom, the electric heating pot base sets power socket and inner to outer one, three way lamp display switch and two, four way parallel lamp display switch or two, four way total control lamp display switch which are opposite or vertically adjacent to the power socket; one electrode of the power socket is electrically connected to one wire end of all electric heating pipes through the thermal insurance, the other electrode of the power socket is electrically connected to the access end of the inner to outer one, three way lamp display switch through the temperature control switch, the outgoing end of the inner to outer one, three way lamp display switch is respectively electrically connected to the other wire end of the inner to outer one, three way electric heating pipe and respectively electrically connected to the two, four way access end of the two, four way parallel lamp display switch, the two, four way outgoing end of the two, four way parallel lamp display switch is respectively electrically connected to the other wire end of the two, four way electric heating pipe.

2. A multi-purpose electric food warmer with easy power control, characterized in that The electric heating pot bottom ring-shaped aluminum bottom sets four open ring electric heating pipes with inner and outer circle spacing, the electric heating pot bottom surface sets thermal insurance and temperature control switch in the center area of the aluminum bottom, the electric heating pot base sets power socket and inner to outer one, three way lamp display switch and two, four way total control lamp display switch which are opposite or vertically adjacent to the power socket; one electrode of the power socket is electrically connected to one wire end of all electric heating pipes through the thermal insurance, the other electrode of the power socket is electrically connected to the access end of all lamp display switches through the temperature control switch, the outgoing end of the inner to outer one, three way lamp display switch is respectively electrically connected to the other wire end of the inner to outer one, three way electric heating pipe, the outgoing end of the two, four way total control lamp display switch is electrically connected to the other wire end of the two, four way electric heating pipe.

3. The multi-purpose electric food warmer capable of easily controlling the firepower according to claim 1 or 2, characterized in that The electric heating pot base sets inner to outer one, three way lamp display switch and two, four way parallel lamp display switch or two, four way total control lamp display switch on the front wall opposite side of the power socket through the card slot which is sequentially spaced; the front wall sets water baffle to the front of the inner to outer one, three way lamp display switch and two, four way parallel lamp display switch or two, four way total control lamp display switch.

4. The multi-purpose electric food warmer with easy power control as claimed in claim 1 or 2, characterized in that The openings of the one and two way open ring electric heating pipe and the three and four way open ring electric heating pipe are respectively opposite, and the connection line in the opening of the one and two way open ring electric heating pipe is perpendicular or oblique to the connection line in the opening of the three and four way open ring electric heating pipe; the electric heating pot bottom which sets the electric heating pipe is flat or arc convex bottom.

5. A multi-purpose electric food warmer with easy power control, characterized in that The electric heating pot bottom ring-shaped aluminum bottom sets more than six even 2X way open ring electric heating pipes with inner and outer circle spacing, the electric heating pot bottom surface sets thermal insurance and temperature control switch in the center area of the aluminum bottom, the electric heating pot base sets power socket and inner to outer odd way lamp display switch and inner to outer even way parallel lamp display switch which are opposite or vertically adjacent to the power socket; one electrode of the power socket is electrically connected to one wire end of all electric heating pipes through the thermal insurance, the other electrode of the power socket is electrically connected to the access end of the inner to outer odd way lamp display switch through the temperature control switch, the outgoing end of the inner to outer odd way lamp display switch is respectively electrically connected to the other wire end of the inner to outer odd way electric heating pipe and respectively electrically connected to the inner to outer even way access end of the inner to outer even way parallel lamp display switch, the inner to outer even way outgoing end of the inner to outer even way parallel lamp display switch is respectively electrically connected to the other wire end of the inner to outer even way electric heating pipe.

6. A multi-purpose electric food warmer with easy power control, characterized in that The electric heating pot bottom ring-shaped aluminum covered bottom is provided with more than six even 2X channel open ring electric heating pipes between the inner and outer rings. The center area of the aluminum covered bottom of the electric heating pot bottom surface is provided with a thermal fuse and a temperature control switch. The electric heating pot base is provided with a power socket and adjacent to or perpendicular to the power socket, inner to outer odd channel light display switches and inner to outer even channel total control light display switches. One electrode of the power socket is connected to one terminal of all the electric heating pipes through the thermal fuse. The other electrode of the power socket is connected to the input terminal of all the light display switches through the temperature control switch. The output terminals of the inner to outer odd channel light display switches are respectively connected to the other terminals of the inner to outer odd channel electric heating pipes. The output terminals of the inner to outer even channel total control light display switches are connected to the other terminals of the inner to outer even channel electric heating pipes.

7. The multi-purpose electric food warmer capable of easily controlling the firepower according to claim 5 or 6, characterized in that The number of the open ring electric heating pipes is six or eight. The electric heating pot bottom provided with the electric heating pipes is a flat bottom or an arc convex bottom.

8. The multi-purpose electric food warmer capable of easily controlling the firepower according to claim 5 or 6, characterized in that The front edge wall of the electric heating pot base on the opposite side of the power socket is provided with the inner to outer odd channel light display switches and the inner to outer even channel parallel light display switches or the inner to outer even channel total control light display switches through the card slots in sequence. The front edge wall is provided with a water baffle in front of the inner to outer odd channel light display switches and the inner to outer even channel parallel light display switches or the inner to outer even channel total control light display switches.

9. The multi-purpose electric food warmer capable of easily controlling the power as claimed in claim 5 or 6, wherein The openings of the front odd channel and the adjacent rear even channel of the open ring electric heating pipes are oppositely arranged, and all the lines connecting the openings of the front odd channel and the adjacent rear even channel are not parallel to each other.

10. The multi-purpose electric food warmer with easy power control as claimed in claim 9, wherein The adjacent included angles of all the lines connecting the openings of the front odd channel and the adjacent rear even channel are the same or similar.

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