CN111315044A

CN111315044A - Heating device capable of automatically switching voltage

Info

Publication number: CN111315044A
Application number: CN202010307537.8A
Authority: CN
Inventors: 罗丽文
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-04-17
Filing date: 2020-04-17
Publication date: 2020-06-19

Abstract

The invention discloses a heating device capable of automatically switching voltage, which comprises a main switch and a temperature controller, wherein the main switch is electrically connected with an indicator lamp through a lead, the indicator lamp is electrically connected with a fusing fuse through a lead, the fusing fuse is electrically connected with an intermediate relay through a lead, the intermediate relay is electrically connected with a 110V electric heating wire through a lead, the intermediate relay is electrically connected with a 220V electric heating wire through a lead, and the temperature controller is electrically connected with the intermediate relay through a lead. This but device that generates heat of auto-switching voltage chooses for use a relay that has on the market now, and the adult is low, and circuit structure is all simple, and the reliability is high, and voltage automatic identification need not manual switching, and the practicality is high, and the switching response is fast, can not burn out the heater.

Description

Heating device capable of automatically switching voltage

Technical Field

The invention relates to the technical field of heating, in particular to a heating device capable of automatically switching voltage.

Background

Present high-power domestic appliance (like electric kettle, garment steamer, hairdryer, electric rice cooker etc.), automated inspection voltage uses under can not realizing dual voltage (110V and 220V), present only two kinds on the market, one kind is that the heater of 220V voltage is general under 220V and 110V, work under 110V voltage state like this, power is little and lead to heating time long, experience very poor, another kind is the switch that has a manual switching voltage, this kind of inconvenient use, and forget easily and switch and the problem of burning apparatus.

Disclosure of Invention

The invention aims to provide a heating device capable of automatically switching voltage, which aims to solve the problems that the conventional high-power household appliance cannot automatically detect the voltage under double voltages (110V and 220V) and only two types of heating wires with 220V voltage are available in the market, one type of heating wire is commonly used under 220V and 110V, so that the heating device works in a 110V state, the heating time is long due to low power, the experience is poor, and the other type of heating wire is provided with a switch for manually switching voltage, so that the heating device is inconvenient to use and easy to burn out the appliance due to forgetting to switch.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a but device that generates heat of automatic switch-over voltage, includes master switch and temperature controller, master switch passes through to be electric connection between wire and the pilot lamp, and the pilot lamp passes through to be electric connection between wire and the fusing fuse, the fusing fuse passes through to be electric connection between wire and the auxiliary relay, and the auxiliary relay passes through to be electric connection between wire and the 110V electric heater, the auxiliary relay passes through to be electric connection between wire and the 220V electric heater, the temperature controller passes through to be electric connection between wire and the auxiliary relay.

Preferably, the output end of the main switch is electrically connected in series with the input end of the indicator light through a wire, and the output end of the indicator light is electrically connected in series with the input end of the fuse wire through a wire.

Preferably, the intermediate relay includes a 110V switch, a 220V switch and a coil, the 110V switch is electrically connected in series with the 110V electric heating wire through a wire, and the 220V switch is electrically connected in series with the 220V electric heating wire through a wire.

Preferably, the 110V switch, the 220V switch and the coil are electrically connected in parallel through a conducting wire.

Preferably, the 110V electric heating wire and the 220V electric heating wire are electrically connected in parallel through a conducting wire, and the 110V electric heating wire and the 220V electric heating wire are electrically connected in series through a conducting wire and a temperature controller.

Compared with the prior art, the invention has the following beneficial effects:

the existing relay in the market is selected for use, the adult is low, the circuit structure is simple, the reliability is high, the voltage is automatically identified, manual switching is not needed, the practicability is high, the switching response is fast, and the heating wire cannot be burnt.

Drawings

FIG. 1 is a schematic diagram of the system of the present invention;

fig. 2 is a schematic structural diagram of the intermediate relay system of the present invention.

In the figure: 1. a master switch; 2. an indicator light; 3. fusing the fuse; 4. an intermediate relay; 401. a 110V switch; 402. a 220V switch; 403. a coil; 5. a 110V electric heating wire; 6. a 220V electric heating wire; 7. and (7) a temperature controller.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-2, the present invention provides a technical solution: a heating device capable of automatically switching voltage comprises a main switch 1 and a temperature controller 7, wherein the main switch 1 is electrically connected with an indicator lamp 2 through a lead, the indicator lamp 2 is electrically connected with a fuse 3 through a lead, the output end of the main switch 1 is electrically connected with the input end of the indicator lamp 2 through a lead in series, the output end of the indicator lamp 2 is electrically connected with the input end of the fuse 3 through a lead in series, the fuse 3 is electrically connected with an intermediate relay 4 through a lead, the intermediate relay 4 is electrically connected with a 110V electric heating wire 5 through a lead, the intermediate relay 4 comprises a 110V switch 401, a 220V switch 402 and a coil 403, the 110V switch 401 is electrically connected with the 110V electric heating wire 5 through a lead in series, the 220V switch 402 is electrically connected with the 220V electric heating wire 6 through a lead in series, the 110V switch 401, the 220V switch 402 and the coil 403 are electrically connected in parallel through conducting wires;

the intermediate relay 4 is electrically connected with the 220V electric heating wire 6 through a conducting wire, the temperature controller 7 is electrically connected with the intermediate relay 4 through a conducting wire, the 110V electric heating wire 5 and the 220V electric heating wire 6 form parallel electric connection through conducting wires, and the 110V electric heating wire 5 and the 220V electric heating wire 6 form series electric connection with the temperature controller 7 through conducting wires.

The working principle is as follows: when the heating device capable of automatically switching the voltage is used, firstly, the existing 220V intermediate relay 4 on the market is matched with the 110V electric heating wire 5 and the 220V electric heating wire 6 to realize the heating device, so that the realization cost is low, and the heating device is safe and reliable, the 220V intermediate relay 4 is selected from the switches of a 110V switch 401 and a 220V switch 402, the 110V switch 401 and the 220V switch 402 are in an open-close state, the coil working voltage of the relay is 220V, the switching voltage of the relay is between 140V and 160V, the normally-closed end is connected with the 110V electric heating wire 5, and the normally-open end is connected with the 220V heating wire 6;

when the plug is connected with the voltage of 110V, the attraction force of the relay is weak, the relay switch is not switched, or the 110V selector switch 401 is switched on, the 220V selector switch 402 is switched off, the 110V electric heating wire 5 works, the 220V electric heating wire 6 does not work in an off state, when the plug is inserted with the voltage of 220V, the intermediate relay 4 is attracted, the 110V selector switch 401 is switched off, the 220V selector switch 402 is switched on, and the 220V heating wire works, namely the working principle of the heating device capable of automatically switching the voltage.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A heating device capable of automatically switching voltage comprises a main switch (1) and a temperature controller (7), and is characterized in that: the main switch (1) is electrically connected with the indicating lamp (2) through a wire, the indicating lamp (2) is electrically connected with the fusing fuse (3) through the wire, the fusing fuse (3) is electrically connected with the intermediate relay (4) through the wire, the intermediate relay (4) is electrically connected with the 110V electric heating wire (5) through the wire, the intermediate relay (4) is electrically connected with the 220V electric heating wire (6) through the wire, and the temperature controller (7) is electrically connected with the intermediate relay (4) through the wire.

2. The heat generating device capable of automatically switching voltage according to claim 1, wherein: the output end of the main switch (1) is electrically connected in series with the input end of the indicating lamp (2) through a wire, and the output end of the indicating lamp (2) is electrically connected in series with the input end of the fusing fuse (3) through a wire.

3. The heat generating device capable of automatically switching voltage according to claim 1, wherein: the intermediate relay (4) comprises a 110V switch (401), a 220V switch (402) and a coil (403), wherein the 110V switch (401) is electrically connected with the 110V electric heating wire (5) in series through a lead, and the 220V switch (402) is electrically connected with the 220V electric heating wire (6) in series through a lead.

4. A heat generating device capable of automatically switching voltage according to claim 3, wherein: the 110V switch (401), the 220V switch (402) and the coil (403) are electrically connected in parallel through conducting wires.

5. The heat generating device capable of automatically switching voltage according to claim 1, wherein: the 110V electric heating wire (5) and the 220V electric heating wire (6) form parallel electric connection through a lead, and the 110V electric heating wire (5) and the 220V electric heating wire (6) form series electric connection with the temperature controller (7) through a lead.