A toaster single-side baking function structure

Abstract

The utility model discloses a toasty stove single -sided baking function structure in the field of kitchen appliance, including heating device, base plate control circuit and thermal protector subassembly, its characterized in that: heating device is connected with base plate control circuit, heating device includes left heat plate subassembly, middle heat plate subassembly, right heat plate subassembly, be provided with relay RELAY1 in the base plate control circuit, and the second interface and the third interface end of relay RELAY1 are connected respectively left heat plate subassembly, the input, output end of a group of resistance 11R of right heat plate subassembly. The utility model discloses a relay switching resistance loop, realizes single -sided power flexible regulation, solves the problem that traditional scheme can not reduce unilateral heat under high voltage, left and right heat plate adopts double resistance interval arrangement, and the heat conduction of cooperation mica plate ensures that the bread slice is colored evenly, retains original full -power baking function, satisfies the diversification demand through one -key switching.

Description

Technical Field

[0001] This utility model relates to the field of kitchen appliances, specifically a toaster with a single-sided baking function. Background Technology

[0002] A toaster is an electric cooking appliance used to toast bread slices. The single-sided toasting function (BAGEL) has attracted much attention because it meets users' needs for controlling the browning of only one side of the bread slice. While existing Chinese patents CN102008252A, CN101862134A, and CN201734564U involve energy-saving control and oven cavity structure of toasters, they all achieve single-sided toasting through conventional heating power adjustment or time control, which presents the following technical bottlenecks:

[0003] 1) Insufficient voltage compatibility: For high voltage scenarios of 220-240V, existing solutions do not disclose the technical means of controlling the heat generation of one side by switching the resistor circuit. Directly reducing the power can easily lead to overload of the heating element or uneven baking (for example, Chinese patent CN101862134A only adjusts the heat distribution through the furnace cavity structure and does not involve circuit innovation).

[0004] 2) Incomplete implementation of functions: The “single-sided baking” mentioned in some patents is actually just shortening the baking time and cannot achieve low-temperature baking on one side (for example, the oven cavity design disclosed in Chinese patent CN201734564U only optimizes the heat conduction path and does not solve the problem of precise power control on one side).

[0005] 3) Simple circuit structure: Existing technologies do not disclose a combination scheme of series and parallel relay control resistors, making it difficult to achieve dynamic power adjustment through simple and reliable circuit switching under high voltage.

[0006] Therefore, those skilled in the art have provided a toaster single-sided baking function structure to solve the problems mentioned in the background art. Utility Model Content

[0007] The purpose of this invention is to provide a toaster oven with a single-sided baking function to solve the problems mentioned in the background art.

[0008] To achieve the above objectives, this utility model provides the following technical solution:

[0009] A toaster with a single-sided baking function includes a heating device, a baseboard control circuit, and a thermal protector assembly. The heating device is connected to the baseboard control circuit and includes a left heating plate assembly, a middle heating plate assembly, and a right heating plate assembly. The baseboard control circuit includes a relay RELAY1, whose second and third interfaces are respectively connected to the input and output terminals of a set of resistors 11R for the left and right heating plate assemblies. When the single-sided baking function key is pressed, the relay RELAY1 is deactivated, and the set of resistors 11R is connected in series with the heating circuit to reduce the heat generated by the left and right heating plate assemblies.

[0010] As a further embodiment of this utility model: both the left heating plate assembly and the right heating plate assembly include two sets of spaced-apart resistance wires, which are fixed to the mica plate.

[0011] As a further improvement of this utility model: the substrate control circuit includes a main current circuit for the heating device, the main current circuit is connected to an AC220V~240V power supply, and the relay RELAY1 is controlled to switch on and off via a push-button switch.

[0012] As a further improvement of this utility model, the resistance value of the middle heating plate assembly is less than the total resistance value of the left heating plate assembly and the right heating plate assembly after the series resistor 11R is inserted.

[0013] As a further embodiment of this utility model: a diode D5 is connected to the fourth and fifth interfaces of the relay RELAY1, and the fourth interface of the relay RELAY1 is connected to the third interface of the transistor Q5. A resistor R11 and a resistor R13 are connected in parallel to the first interface of the transistor Q5, and the other end of the resistor R13 is grounded.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This invention achieves flexible adjustment of single-sided power by switching the resistor circuit via a relay, solving the problem that traditional solutions cannot reduce heat on one side under high voltage. The left and right heating plates are arranged with dual resistors spaced apart, and with the help of mica plates for heat conduction, the bread slices are ensured to brown evenly. The original full-power baking function is retained, and a one-button switch can meet diverse needs. Attached Figure Description

[0016] Figure 1 This is the circuit diagram of this utility model;

[0017] Figure 2 This is a structural diagram of the left heating plate assembly in this utility model;

[0018] Figure 3 This is a structural diagram of the right heating plate assembly in this utility model;

[0019] Figure 4 This is a structural diagram of the heating plate assembly in this utility model.

[0020] In the diagram: 1. Left heating plate assembly; 2. Right heating plate assembly; 3. Middle heating plate assembly; 4. Resistance wire; 5. Mica plate. Detailed Implementation

[0021] Please see Figures 1-4 In this embodiment of the utility model, a toaster with a single-sided baking function includes a heating device, a substrate control circuit, and a thermal protector assembly. The heating device is connected to the substrate control circuit and includes a left heating plate assembly 1, a middle heating plate assembly 3, and a right heating plate assembly 2. The substrate control circuit includes a relay RELAY1, whose second and third interfaces are respectively connected to the input and output terminals of a set of resistors 11R for the left heating plate assembly 1 and the right heating plate assembly 2. When the single-sided baking function key is pressed, the relay RELAY1 is disconnected, and the set of resistors 11R is connected in series in the heating circuit to reduce the heat generated by the left and right heating plate assemblies 2.

[0022] The left heating plate assembly 1 and the right heating plate assembly 2 each contain two sets of spaced resistance wires 4, which are fixed on the mica plate 5 to ensure uniform heat distribution.

[0023] The base plate control circuit includes a main current circuit for the heating device. The main current circuit is connected to an AC220V~240V power supply and controls the relay RELAY1 to switch on and off via a push-button switch. In turn, the relay RELAY1 controls the switching on and off of the resistors of the left heating plate assembly 1 and the right heating plate assembly 2.

[0024] Among them, the resistance value of the middle heating plate assembly 3 is less than the total resistance value of the left heating plate assembly 1 and the right heating plate assembly 2 after the resistor 11R is connected in series.

[0025] Among them, diode D5 is connected to the fourth and fifth interfaces of relay RELAY1, and the fourth interface of relay RELAY1 is connected to the third interface of transistor Q5. Resistors R11 and R13 are connected in parallel to the first interface of transistor Q5, and the other end of resistor R13 is grounded.

[0026] The working principle of this utility model is as follows: a heating device consisting of a left heating plate assembly 1, a middle heating plate assembly 3, and a right heating plate assembly 2, wherein each of the left heating plate assembly 1 and the right heating plate assembly 2 includes two sets of spaced resistance wires 4, fixed on a mica plate 5 to ensure uniform heat distribution; the main current circuit is connected to an AC220V~240V power supply, and the resistors of the left heating plate assembly 1 and the right heating plate assembly 2 are controlled by a relay RELAY1; during normal operation, the relay is closed, the resistor 11R is short-circuited, and the left and right heating plates work at high power; when the single-sided baking BAGEL button is pressed, the relay RELAY1 is opened, the resistor 11R is connected in series in the circuit, the total resistance of the left and right heating plates increases, the power decreases, and low-temperature baking is achieved; the thermal protector assembly is connected in series in the power input circuit to prevent overheating damage.

Claims

1. A toaster single-sided baking function structure, comprising a heating device, a substrate control circuit, and a thermal protector assembly, characterized in that: The heating device is connected to the base plate control circuit. The heating device includes a left heating plate assembly (1), a middle heating plate assembly (3), and a right heating plate assembly (2). The base plate control circuit is equipped with a relay RELAY1. The second and third interfaces of the relay RELAY1 are respectively connected to the input and output terminals of a set of resistors 11R of the left heating plate assembly (1) and the right heating plate assembly (2). When the single-sided baking function key is pressed, the relay RELAY1 is disconnected, and the set of resistors 11R is connected in series in the heating circuit to reduce the heat generation of the left and right heating plate assemblies (2).

2. The toaster single-sided baking function structure according to claim 1, characterized in that: The left heating plate assembly (1) and the right heating plate assembly (2) each contain two sets of spaced resistance wires (4), which are fixed on the mica plate (5).

3. The toaster single-sided baking function structure according to claim 1, characterized in that: The base plate control circuit includes a main current circuit for the heating device. The main current circuit is connected to an AC220V~240V power supply and is controlled to switch on and off via a push-button switch to control the relay RELAY1.

4. The toaster single-sided baking function structure according to claim 1, characterized in that: The resistance of the middle heating plate assembly (3) is less than the total resistance of the left heating plate assembly (1) and the right heating plate assembly (2) after the resistor 11R is connected in series.

5. The toaster single-sided baking function structure according to claim 1, characterized in that: A diode D5 is connected to the fourth and fifth interfaces of the relay RELAY1, and the third interface of the transistor Q5 is connected to the fourth interface of the relay RELAY1. A resistor R11 and a resistor R13 are connected in parallel to the first interface of the transistor Q5, and the other end of the resistor R13 is grounded.

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