CN213786777U

CN213786777U - Electric food warmer with quickly-adjusted power

Info

Publication number: CN213786777U
Application number: CN202022506417.9U
Authority: CN
Inventors: 刘垒
Original assignee: Shandong Haiyue Electric Appliance Co ltd
Current assignee: Shandong Haiyue Electric Appliance Co ltd
Priority date: 2020-11-03
Filing date: 2020-11-03
Publication date: 2021-07-27
Anticipated expiration: 2030-11-03

Abstract

An electric food warmer with quickly adjusted power belongs to the technical field of household appliances. Including the pot body (1) and base (4), the bottom cover of the pot body (1) is equipped with a plurality of electrothermal tubes, be provided with in front panel (3) with electrothermal tube one-to-one control switch (6), be provided with in base (4) and be used for the heating control circuit to the electrothermal tube power supply, in control switch (6) and the electrothermal tube access heating control circuit, its characterized in that: the front panel (3) is also provided with a power switch (7), the power switch (7) is connected into the heating control circuit, and the operating power of the electric heating tube is shifted to be the rated power or half of the rated power along with the power switch (7). In the electric food warmer with the power quickly adjusted, the power of the electric heating tube at the bottom of the pan is quickly adjusted by arranging the power change-over switch, and the condition that the heating at the bottom of the pan is uneven easily caused when the power is adjusted in the prior art is avoided.

Description

Electric food warmer with quickly-adjusted power

Technical Field

An electric food warmer with quickly adjusted power belongs to the technical field of household appliances.

Background

Electric cookers are one of the most common household appliances at present. In daily life, different cooking materials and cooking methods require higher requirements on the control of cooking duration. In the prior art, a plurality of electric heating tubes are generally arranged at a pot body of an electric heating pot, switches which correspond to the electric heating tubes one by one are arranged on a panel of the electric heating pot, when cooking is needed with slow fire, part of the electric heating tubes are closed, and when cooking is needed with sharp fire, all the electric heating tubes work simultaneously.

As mentioned above, the prior art only adjusts the duration of the electric heating cooker by adjusting the number of electric heating tubes, but this method has the following disadvantages: because many electrothermal tubes are inside and outside suit at the bottom of a boiler department, consequently when closing a certain electrothermal tube, can make the uneven condition of heating appear in the electrothermal pot bottom, cause easily that the edible material is heated unevenly, consequently design one kind and can realize the electrothermal tube that the electrothermal pot power quick adjustment and keep heating evenly, become the problem that this area is waited for to solve urgently.

Disclosure of Invention

The to-be-solved technical problem of the utility model is: the electric heating cooker overcomes the defects of the prior art, and the power quick adjustment is realized by arranging the power change-over switch, so that the power quick adjustment easily caused by the condition of uneven heating of the cooker bottom in the prior art is avoided.

The utility model provides a technical scheme that its technical problem adopted is: this electric heat pot of power quick adjustment, including the pot body with fix the base in pot body below, the bottom cover of the pot body is equipped with a plurality of electrothermal tubes, is provided with the front panel in the front side of base, be provided with in the front panel with the electrothermal tube one-to-one control switch, be provided with in the base and be used for the heating control circuit to the electrothermal tube power supply, control switch and electrothermal tube access heating control circuit in, its characterized in that: the front panel is also provided with a power switch which is connected into the heating control circuit, and the running power of the electric heating tube is shifted to be the rated power or half of the rated power along with the power switch.

Preferably, the control switch further comprises a heat preservation switch, the heat preservation switch is connected into the heating control circuit, and the heat preservation switch is connected into a power supply loop of one of the electric heating tubes.

Preferably, a connecting seat is arranged between the pot body and the base.

Preferably, handles are symmetrically arranged on two sides of the outer side wall of the pot body.

Preferably, a power jack for introducing an external power into the heating control circuit is provided at the rear of the base.

Preferably, in the heating control circuit, the live wire L is connected in series with the fuse FU1 and then is simultaneously connected with one end of each of the electric heating tubes, one end of each of the electric heating tubes is respectively connected with one end of a corresponding control switch, the other end of one of the electric heating tubes is simultaneously connected with one end of a heat preservation switch, and the other ends of all the control switches and the heat preservation switch are connected with the movable end of the power switch; the zero line N is simultaneously connected with one ends of two temperature control switch contacts, the other end of one temperature control switch contact is connected with one immovable end of the power change-over switch after being connected with a diode in series, and the other end of the other temperature control switch contact is connected with the other immovable end of the power change-over switch.

Compared with the prior art, the utility model discloses the beneficial effect who has is:

in the electric food warmer with the fast power regulation function, the power change-over switch is arranged to form two power supply loops for the electric heating tubes, the diode is arranged in one power supply loop, and only half cycle of alternating current can be loaded on the electric heating tubes by utilizing the one-way conduction characteristic of the diode, so that the working power of the three electric heating tubes is half of the rated power, and the fast power change-over is realized. Compared with the mode of realizing power regulation by disconnecting a certain electric heating tube in the prior art, the method avoids the situation that uneven heating is easy to occur at the bottom of the pot after the certain electric heating tube is disconnected.

Drawings

Fig. 1 is a front view of an electric food warmer with rapidly regulated power.

Fig. 2 is a circuit schematic diagram of an electric food warmer with rapidly regulated power.

Wherein: 1. the pot body 2, the connecting seat 3, the front panel 4, the base 5, the handle 6, the control switch 7 and the power change-over switch.

Detailed Description

Fig. 1 to 2 are preferred embodiments of the present invention, and the present invention will be further explained with reference to fig. 1 to 2.

As shown in figure 1, the electric food warmer with the power rapidly adjusted (hereinafter referred to as the electric food warmer) comprises a pan body 1, wherein cooking is carried out on the inner surface of the pan body 1, and the upper edge of the pan body 1 is turned outwards to form a turned edge of the pan body. Handles 5 are symmetrically arranged on two sides of the outer side wall of the pot body 1, and the electric heating pot is convenient to move through the handles 5. The bottom of the pot body 1 forms an arc-shaped surface, the bottom of the pot body 1 is provided with a disc-shaped connecting seat 2, a round base 4 is fixed below the connecting seat 2, and a heating control circuit of the electric heating pot is arranged in the base 4.

The front panel 3 is arranged on the front end face of the base 4, and the front panel 3 is arranged on the front end face of the base 4 in a protruding mode and is integrated with the base 4. A plurality of control switches 6 are arranged on a control panel of the front panel 3 side by side, a power change-over switch 7 is arranged on one side of the control switches 6, the control switches 6 and the power change-over switch 7 are connected into a control loop of the electric heating cooker, and 4 control switches 6 are arranged in the electric heating cooker side by side and used for switching the electric heating cooker to different working states, such as working states and heat preservation states under different powers. The rear part of the base 4 is provided with a power supply jack for leading an external power supply into a heating control circuit of the electric food warmer. The power switch can be realized by a common commercial rotary switch; the control switch 6 may be implemented by a commercially available ship-type switch.

As shown in FIG. 2, in the heating control circuit, the live line L is connected in series with the fuse FU1 and then connected with one ends of the resistors R1-R3, the other ends of the resistors R1-R2 are connected with one ends of the switches S1-S2, the other end of the resistor R3 is connected with one ends of the switches S3-S4, and the other ends of the switches S1-S4 are connected with the movable end of the switch S5. The neutral wire N is simultaneously connected with one ends of contacts ST 1-ST 2, the other end of the contact ST1 is connected with a diode D1 in series and then is connected with a switch S5 and is connected with one of the fixed ends, and the other end of the contact ST2 is connected with a switch S5 and is connected with the other fixed end.

The resistors R1-R3 represent three electric heating tubes arranged at the bottom of the pot body 1, the switches S1-S4 are respectively four control switches 6 arranged on the front panel 3 side by side, the switches S1-S3 are respectively used for controlling the on-off of the three electric heating tubes (resistors R1-R3), the switch S4 is a heat-preservation switch, and when the switch S4 is closed, only the electric heating tube corresponding to the resistor R3 works to achieve a heat-preservation effect. The switch S5 is the above power switch 7, and the three electric heating tubes are in different power supply circuits by turning the switch S5. The contact ST1 and the contact ST2 are respectively contacts of two temperature controllers at the bottom of the pot body 1, and when the switch S5 is switched to different power supply circuits, the corresponding temperature controllers work.

The specific working process and working principle are as follows:

when the electric food warmer is used and needs high-power (strong fire) cooking, the power change-over switch 7 is turned over, the power fluctuation switch 7 is positioned in a power supply loop where the contact ST2 shown in figure 2 is positioned, the control switch 6 is pressed at the moment, different electric heating pipes are electrified, at the moment, the three electric heating pipes are supplied with power by alternating current, and the three electric heating pipes are in a full-power working state. When the temperature at the bottom of the pot body 1 reaches the set temperature of the temperature controller ST2, the temperature controller ST1 is switched off, so that the electric food warmer is prevented from being in a dry-heating state.

When the electric food warmer needs to cook with low power (slow fire), the power change-over switch 7 is turned over, the power fluctuation switch 7 is located in a power supply loop where the contact ST1 shown in figure 2 is located, at the moment, the control switch 6 is pressed, different electric heating pipes are electrified, and at the moment, three electric heating pipes are powered by alternating current. Because the diode D1 is arranged in the power supply loop, only half cycle of alternating current is loaded on the electric heating tubes by utilizing the one-way conduction characteristic of the diode D1, so that the working power of the three electric heating tubes is half of the rated power, and the rapid switching of the power is realized. When the temperature at the bottom of the pot body 1 reaches the set temperature of the temperature controller ST1, the temperature controller ST1 is switched off, so that the electric food warmer is prevented from being in a dry-heating state.

While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention. However, any simple modification, equivalent change and modification made to the above embodiments according to the technical substance of the present invention still belong to the protection scope of the technical solution of the present invention.

Claims

1. The utility model provides a power quick adjustment's electric heat pot, includes the pot body (1) and fixes base (4) in the pot body (1) below, is equipped with a plurality of electrothermal tubes in the bottom cover of the pot body (1), is provided with front panel (3) in the front side of base (4), be provided with in front panel (3) with electrothermal tube one-to-one control switch (6), be provided with in base (4) and be used for the heating control circuit to the electrothermal tube power supply, in control switch (6) and the electrothermal tube access heating control circuit, its characterized in that: the front panel (3) is also provided with a power switch (7), the power switch (7) is connected into the heating control circuit, and the operating power of the electric heating tube is shifted to be the rated power or half of the rated power along with the power switch (7).

2. The electric food warmer with rapid power adjustment as claimed in claim 1, wherein: the control switch (6) also comprises a heat preservation switch, the heat preservation switch is connected into the heating control circuit, and the heat preservation switch is connected into a power supply loop of one of the electric heating pipes.

3. The electric food warmer with rapid power adjustment as claimed in claim 1, wherein: a connecting seat (2) is arranged between the pot body (1) and the base (4).

4. The electric food warmer with rapid power adjustment as claimed in claim 1, wherein: handles (5) are symmetrically arranged on two sides of the outer side wall of the pot body (1).

5. The electric food warmer with rapid power adjustment as claimed in claim 1, wherein: and a power supply jack for leading an external power supply into the heating control circuit is arranged at the rear part of the base (4).

6. The electric fast power regulating cooker as claimed in claim 1, 2 or 5, wherein: in the heating control circuit, a live wire L is connected with one end of each electric heating tube after being connected with a fuse FU1 in series, one end of each electric heating tube is connected with one end of a corresponding control switch (6), the other end of one electric heating tube is connected with one end of a heat preservation switch, and the other ends of all the control switches (6) and the heat preservation switches are connected with the movable end of the power change-over switch (7); the zero line N is connected with one ends of two temperature control switch contacts at the same time, the other end of one temperature control switch contact is connected with one immovable end of the power change-over switch (7) after being connected with a diode in series, and the other end of the other temperature control switch contact is connected with the other immovable end of the power change-over switch (7).