CN108344019B

CN108344019B - Electric heating stove

Info

Publication number: CN108344019B
Application number: CN201810142229.7A
Authority: CN
Inventors: 张子脉
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-02-11
Filing date: 2018-02-11
Publication date: 2023-10-13
Anticipated expiration: 2038-02-11
Also published as: CN108344019A

Abstract

The application discloses an electric baking furnace, which comprises an electric furnace and one or more cushions, wherein an electric furnace switch is arranged in each cushion, the electric furnace switch is connected in series between a power supply and the electric furnace through a wire, the electric furnace switch is a pressure type switch, when the external pressure applied to the cushion is greater than a critical pressure value, the electric furnace switch is connected with the power supply, and the electric furnace starts to work; when the external pressure applied to the cushion is not greater than the critical pressure value, the electric furnace switch is disconnected from the power supply, and the electric furnace does not work. Compared with the prior art, the scheme of the application does not restrict the electric furnace user, does not need to pedal to control the working state of the electric furnace, reduces the restriction to the feet of the user, does not need to set a wireless module, does not need to be networked, and is suitable for families without or disconnected with the network.

Description

Electric heating stove

Technical Field

The application relates to the field of baking ovens, in particular to a household safe electric baking oven.

Background

In both the south city and rural families of China, no heating facilities exist, in winter, the air temperature is low, the air humidity is high, and the families are very cold. At present, the power is basically applied to the rural areas and the urban families in the south of China, and almost all families use electric furnaces for heating, and the electric furnaces are directly placed in rooms or under tables. The biggest shortcoming of this kind of mode is that often forget to turn off the power when people leave, especially before sleeping at night or when having emergency to leave, very easily forget to turn off the electric stove switch, causes the conflagration. Every year, in the south of China, fire disasters caused by forgetting to turn off the electric furnace occur sometimes, and serious casualties and property losses are caused.

At present, an electric heating furnace mainly adopts the following two modes to realize a switching function: the first is to put a pedal on the stove, the circuit is connected on the pedal by the pedal, and the circuit is disconnected when the foot leaves the pedal, which has the disadvantage that the user needs to tread the pedal all the time when baking fire, and the phenomenon of ache easily occurs when keeping a posture for a long time. The second is a wireless control mode, and the starting and the disconnection of the stove are controlled through a wireless transmitting and receiving module or a Bluetooth switch, which has the defects of complex wireless structure, high cost and inapplicability to home environments without network or disconnection.

Disclosure of Invention

The application provides an electric roasting stove which aims to solve or partially solve the problems existing in the prior art.

According to one aspect of the present application there is provided an electric fire comprising an electric fire, one or more cushions, each cushion having an electric fire switch disposed therein, the electric fire switches being connected in series between a power source and the electric fire by wires, the electric fire switches being pressure type switches,

when the external pressure applied to the cushion is greater than a critical pressure value, the electric furnace switch is powered on, and the electric furnace starts to work; when the external pressure applied to the cushion is not greater than a critical pressure value, the electric furnace switch is disconnected from the power supply, and the electric furnace does not work.

Preferably, the electric furnace switch comprises a spring, a metal rod, a first wire and a second wire, wherein the first wire is connected with the ground wire of the power supply, the second wire is connected with the live wire of the power supply, the metal rod is positioned in the spring, one end of the metal rod is fixedly connected with the first wire, and the other end of the metal rod is movably connected with the second wire through deformation of the spring;

when the external pressure born by the cushion is larger than a critical pressure value, the spring is compressed, the other end of the metal rod is connected with the second wire, and the electric furnace switch is connected with a power supply; when the external pressure applied to the cushion is not greater than a critical pressure value, the spring is not compressed or compressed, but the other end of the metal rod is not connected with the second lead, and the electric furnace switch is disconnected from the power supply.

Preferably, the critical pressure value at which the electric furnace switch is turned on is controlled by setting the spring rate of the spring.

Preferably, a temperature control knob is arranged on the electric furnace, and the load power of the electric furnace is adjusted through the temperature control knob.

Preferably, the plurality of electric furnace switches are connected in parallel, and then connected in series with the electric furnace.

Preferably, the electric baking furnace further comprises a bimetallic strip heat protector, and the bimetallic strip heat protector is connected in series between the electric furnace and the electric furnace switch.

Preferably, a flexible insulating layer is arranged between the cushion surface layer and the electric furnace switch.

Preferably, the electric furnace switch is arranged at the center of the seat cushion.

Preferably, the electric baking furnace further comprises a kang table, the kang table is a hexahedron built by the supporting frame, and the electric furnace is arranged in the hexahedron.

Preferably, the support frame comprises a support cross bar and a support vertical bar, the kang table is formed by detachably assembling the support cross bar and the support vertical bar, and an interlayer built by the support cross bar is arranged in the kang table.

The embodiment of the application has the beneficial effects that: the electric furnace switch is arranged in the cushion and is connected in series between the power supply and the electric furnace through a lead, and can be closed or opened according to the external pressure applied to the cushion because the electric furnace switch is a pressure type switch, so that the working state of the electric furnace is controlled. According to the scheme, the electric furnace is controlled to start or stop working in a cushion mode, when a user with the body weight larger than a critical pressure value sits on the cushion, the electric furnace can be started to work, the electric furnace can be stopped after the user leaves the cushion, and safety accidents possibly caused by the fact that the user forgets to turn off the electric furnace power switch when leaving the electric furnace are avoided. When a person with the weight smaller than the critical pressure value sits on the seat cushion, the electric stove switch is not powered on, the electric stove does not work, accidents possibly caused by the fact that a child sits on the seat cushion and plays when the adult is not sitting on the seat cushion are avoided, and safety is high. Compared with the prior art, the scheme of the application does not restrict the electric furnace user, does not need to pedal to control the working state of the electric furnace, reduces the restriction to the feet of the user, does not need to set a wireless module, does not need to be connected with the internet, and is suitable for families without or disconnected with the internet.

Drawings

FIG. 1 is a schematic diagram of a functional modular structure of an electric heating furnace according to an embodiment of the present application;

FIG. 2 is a schematic diagram of an electric furnace switch structure according to an embodiment of the present application;

FIG. 3 is a schematic view of another modular structure of an electric heating furnace according to an embodiment of the present application;

fig. 4 is a schematic diagram of an electric heating furnace according to an embodiment of the present application.

Detailed Description

The technical conception of the application is as follows: aiming at the problem that the prior common electric roasting furnace is easy to cause accidents such as fire disaster and the like when the power supply is forgotten to be turned off, the inventor thinks that an electric furnace switch electrically connected with the electric furnace is arranged in a cushion, the electric furnace switch is a pressure switch, a user can set a critical pressure value independently, when a user with a body weight larger than the critical pressure value sits on the cushion, the electric furnace switch is closed, and the electric furnace is powered on to start working; when the user leaves the cushion or a child with the weight not larger than the critical pressure value sits on the cushion, the electric stove switch is in an off state, and the electric stove is powered off and does not work. The working mode of the electric stove can prevent the electric stove from being triggered to work by children independently when the children are beside the electric stove, and accidents such as scalding or fire disaster possibly caused by the situation that people leave the electric stove and forget to power the electric stove and the like.

For the purpose of making the objects, technical solutions and advantages of the present application more apparent, the embodiments of the present application will be described in further detail with reference to the accompanying drawings. The implementations described in the following exemplary examples do not represent all implementations consistent with the application. Rather, they are merely examples of apparatus consistent with aspects of the application as detailed in the accompanying claims.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in this specification and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

Fig. 1 is a schematic diagram of a functional modular structure of an electric heating furnace according to an embodiment of the present application. As shown in fig. 1, the electric roasting stove 10 comprises an electric stove 101 and one or more cushions 102, wherein an electric stove switch 103 is arranged in each cushion 102, and the electric stove switch 103 is connected in series between a power supply 104 and the electric stove 101 through a wire, wherein the electric stove switch 103 is a pressure type switch. When the external pressure applied to the seat cushion 102 is greater than the critical pressure value, the electric furnace switch 103 is connected with the power supply 104, and the electric furnace 101 starts to work; when the external pressure applied to the seat cushion 101 is not greater than the critical pressure value, the electric furnace switch 103 turns off the power supply 104, and the electric furnace 101 does not operate.

Compared with the prior art, the scheme of the application does not need to pedal the pedal to control the working state of the electric furnace, reduces the constraint on the feet of a user, does not need to set a wireless module, does not need to be networked, and is suitable for families without or disconnected with the network. According to the application, the critical pressure value is set for the electric furnace switch, when a user with the body weight larger than the critical pressure value sits on the cushion, the electric furnace can be started to work, and when the user leaves the cushion, the electric furnace can stop working, so that the safety accident possibly caused by forgetting to turn off the electric furnace power switch when the user leaves is avoided; when a person with the weight smaller than the critical pressure value sits on the seat cushion, the electric stove switch is not powered on, the electric stove does not work, accidents possibly caused by the fact that a child sits on the seat cushion and plays when the adult is not sitting on the seat cushion are avoided, and safety is high.

Fig. 2 is a schematic diagram of an electric furnace switch structure provided in an embodiment of the present application, as shown in fig. 2, the electric furnace switch 103 includes a spring 1, a metal rod 2, a first wire 3 and a second wire 4, wherein the first wire 3 is connected with a ground wire of a power supply, the second wire 4 is connected with a live wire of the power supply, the metal rod 2 is located in the spring 1, one end of the metal rod 2 is fixedly connected with the first wire 3, and the other end is movably connected with the second wire 4 through deformation of the spring 1. When the external pressure applied to the cushion is greater than the critical pressure value, the spring 1 is compressed, the other end of the metal rod 2 is connected with the second lead 4, and the electric furnace switch is connected with a power supply; when the cushion is not compressed by the external pressure spring 1 or the external pressure applied by the cushion is not greater than the critical pressure value, the spring 1 is compressed but the other end of the metal rod 2 is not connected with the second lead 4, and the electric furnace switch turns off the power supply.

The critical pressure value can be selected according to the household condition, and the critical pressure value of the electric furnace switch on is controlled by setting the elastic coefficient of the spring 1. According to hooke's law: f= -kx, where k is the spring constant, where the negative sign indicates that the spring force generated by the spring is opposite to the direction in which it is stretched (or compressed), and the formula indicates that the spring force is proportional to the spring constant, and the larger the spring constant, the larger the spring force. The elastic coefficient is related to the material property, and the difference of the softness and the hardness of the springs refers to the difference of the elastic coefficients. And the spring rate of different springs is generally different. Therefore, according to the actual situation in the family, such as the family with children, the weight of the children can be set as the critical pressure value, and according to the critical pressure value, the springs with the elastic coefficients meeting the requirements are selected, namely, the critical pressure values corresponding to different elastic coefficients are different, and the critical pressure value of the electric furnace switch on can be determined by selecting the proper elastic coefficient. For example, when a person weighing less than 5 kg is involved, the spring is deformed insufficiently, the other end of the metal rod 2 is disconnected from the second wire 4, the electric circuit is not completed, and the electric furnace is not operated. Only when a person with a weight of more than 5 kg sits on the seat cushion, the other end of the metal rod 2 is connected with the second lead 4, the circuit is switched on, and the electric furnace works. In order to ensure that the user leaves the seat cushion, the spring can normally spring up, and the pressure applied to the seat cushion cannot exceed the elastic force when the elastic deformation is maximum.

Fig. 3 is a schematic diagram of another functional modularized structure of an electric heating furnace according to an embodiment of the present application, and as shown in fig. 3, the electric heating furnace 30 includes an electric furnace 101, a seat cushion 102, and an electric furnace switch 103 disposed in the seat cushion 102. In some embodiments, the electric firing furnace further comprises a temperature control knob 301 arranged on the electric furnace, and the load power of the electric furnace 101 is adjusted through the temperature control knob 301, so that the heating value of the electric furnace in unit time is adjusted, namely the heating power of the electric furnace is adjusted.

For example, the temperature control knob 301 may include 4 gears, 0, 1, 2, and 3, respectively, wherein 0 corresponds to 0 degrees, 1 corresponds to 25 degrees, 2 corresponds to 45 degrees, and 3 corresponds to 65 degrees. According to the user demand, when the gear 0 is selected, the temperature of the electric furnace is 0 ℃, and at the moment, even if the electric furnace switch is closed, the electric circuit is on, and the electric furnace does not work; when 1 grade is selected, the working temperature of the electric furnace is 25 ℃; when 2 grades are selected, the working temperature of the electric furnace is 45 degrees; when gear 3 is selected, the operating temperature of the electric furnace is 65 degrees. By setting the temperature control knob, a user can select a desired temperature according to own will, the working state of the electric furnace is finely controlled, and the humanization of control is enhanced.

As also shown in fig. 3, in some embodiments, the electric fire further comprises a bi-metallic strip heat protector 302, the bi-metallic strip heat protector 302 being connected in series between the electric fire 101 and the electric fire switch 103. A bimetal thermal protector is a switch in which a bimetal is used as a protection element. The bimetal comprises an active layer with a higher expansion coefficient and a passive layer with a lower expansion coefficient, and because the thermal expansion coefficients of the two layers of metal sheets are different, when the temperature changes, the deformation of the active layer is larger than that of the passive layer, so that the whole bimetal is bent to generate deformation to one side of the passive layer, and the thermal protection is started. When heat generated by the fire is transferred to the bimetal, and reaches a set operation temperature (for example, 50 degrees), the bimetal rapidly operates, the contacts are opened or closed, and the electric furnace is powered off, so that when the temperature of the electric furnace exceeds a certain value, the bimetal thermal protector 302 can realize the function of automatically switching off the power supply, and the electric furnace is ensured to be in a safe working state. Meanwhile, when the temperature is reduced to the set operating temperature, the bimetallic strip is quickly reset to be in an original state, so that the contact is closed or opened, the electric furnace is powered on again, and the bimetallic strip thermal protector 302 can also realize the function of automatically closing and connecting the power supply after the electric furnace stops working for a period of time.

Fig. 4 is a schematic diagram of an electric heating stove circuit provided by an embodiment of the present application, as shown in fig. 4, the electric heating stove circuit includes an electric stove 101 and a plurality of cushions, each cushion is provided with an electric stove switch 103, the plurality of electric stove switches 103 are connected in parallel, and the plurality of electric stove switches 103 are connected in series with the electric stove 101 after being connected in parallel. The connection mode can ensure that the electric furnace starts to work for heating the user as long as a person with the weight larger than the critical pressure value sits on the seat cushion, and stops heating the user only when all the persons with the weight larger than the critical pressure value leave the seat cushion.

In some embodiments, a flexible insulating layer may also be provided between the cushion cover and the fire switch. The flexible insulating layer is arranged to avoid electric shock accidents caused by direct contact of a human body with a live wire due to failure of an electric furnace switch, and further improve the safety of the electric baking furnace. The flexible insulating layer is made of flexible insulating materials, and the flexible insulating materials can be rubber, plastic and the like.

In some embodiments, the electric furnace switch is arranged at the center of the cushion, so that the stress balance of the electric furnace switch is ensured, and the sensitivity of the switch control is improved.

In some embodiments, the electric heating furnace further comprises a kang table, the kang table is a hexahedron built by the support frame, and the electric furnace is placed inside the hexahedron. Wherein, the support frame is including supporting horizontal pole and support montant, and corresponding position is provided with the mounting hole on supporting horizontal pole and the support montant, can detachably assemble into hexahedron, when not using, can dismantle the back and place, saves space, improves the utilization ratio. The number of the supporting cross bars is at least 8, and the number of the supporting vertical bars is at least 4. The supporting cross bars and the supporting vertical bars can be small wood bars which are convenient for material drawing in rural families.

In some embodiments, a layer of support cross bars can be built at the middle upper position in the hexahedron, an upper interlayer is formed between the support cross bars and the hexahedral top layer, the number of the upper interlayers can be multiple, and the support cross bars can be selected independently according to the requirements of users to build. Wet clothes, wet towels and the like can be placed in the upper interlayer, and the wet clothes, the wet towels and the like are dried by using the heat of an electric furnace.

In some embodiments, a layer of support cross bars can be built at the middle and lower positions in the hexahedron, a lower interlayer is formed between the support cross bars and the hexahedron bottom layer, the number of the lower interlayers can be multiple, and the support cross bars can be selected independently according to the requirements of users to build. Wet clothes, wet towels and the like can be placed in the lower interlayer, the wet clothes, the wet towels and the like are dried by using the heat of an electric furnace, and a user can put feet in the lower interlayer for heating.

In actual use, a square small cotton quilt can be paved on the upper surface of the kang table formed by the hexahedron, the side length of the cotton quilt is about 2 times of the side length of the kang table, and the periphery of the cotton quilt is hung on the edge of the kang table. When a person sits beside the kang table and fires, the electric stove is placed in the kang table, and the cotton quilt can be covered on the legs to feel very warm. A square table top is placed on the cotton quilt, fruits, meals and the like can be placed on the square table top, and a person can eat, drink tea, chat and the like while warming, so that the square table top is happy and melted, and the happy feeling is shared. Meanwhile, wet clothes under the kang table are baked, and the whole room can be warmed.

In summary, the electric stove provided by the application is characterized in that the electric stove switch is arranged in the cushion, and is connected in series between the power supply and the electric stove through the lead, and the electric stove switch is a pressure switch, so that the electric stove can be closed or opened according to the external pressure applied to the cushion, thereby controlling the working state of the electric stove, namely, when the external pressure applied to the cushion is greater than a critical pressure value, the electric stove switch is connected with the power supply, and the electric stove is started to work; when the external pressure applied to the cushion is not greater than the critical pressure value, the electric furnace switch is powered off, the electric furnace does not work, and safety accidents possibly caused by forgetting to turn off the electric furnace power switch when people leave are avoided; when a person with the weight smaller than the critical pressure value sits on the seat cushion, the electric stove switch is not powered on, the electric stove does not work, accidents possibly caused by the fact that a child sits on the seat cushion and plays when the adult is not sitting on the seat cushion are avoided, and safety is high. Compared with the prior art, the scheme of the application does not restrict the electric furnace user, does not need to pedal to control the working state of the electric furnace, reduces the restriction to the feet of the user, does not need to set a wireless module, does not need to be connected with the internet, and is suitable for families without or disconnected with the internet.

The foregoing is merely a specific embodiment of the application and other modifications and variations can be made by those skilled in the art in light of the above teachings. It is to be understood by persons skilled in the art that the foregoing detailed description is provided for the purpose of illustrating the application better and that the scope of the application is defined by the appended claims.

Claims

1. The electric baking furnace is characterized by comprising an electric furnace and a plurality of cushions, wherein an electric furnace switch is arranged in each cushion, the electric furnace switch is connected in series between a power supply and the electric furnace through a wire, the electric furnace switch is a pressure switch, the electric furnace switches are connected in parallel, and the electric furnace switches are connected in series with the electric furnace after being connected in parallel;

when the external pressure applied to the cushion is greater than a critical pressure value, the electric furnace switch is powered on, and the electric furnace starts to work; when the external pressure applied to the cushion is not greater than a critical pressure value, the electric furnace switch is powered off, and the electric furnace does not work;

the electric furnace switch comprises a spring, and the critical pressure value of the electric furnace switch is controlled to be switched on by setting the elastic coefficient of the spring.

2. The electric heating furnace as claimed in claim 1, wherein the electric furnace switch comprises a metal rod, a first wire and a second wire, the first wire is connected with a ground wire of a power supply, the second wire is connected with a live wire of the power supply, the metal rod is positioned in the spring, one end of the metal rod is fixedly connected with the first wire, and the other end of the metal rod is movably connected with the second wire through deformation of the spring;

3. The electric roasting stove of claim 1, wherein the electric stove is provided with a temperature control knob by which the load power of the electric stove is regulated.

4. The electric fire of claim 1 further comprising a bi-metallic strip heat protector connected in series between the electric fire and the electric fire switch.

5. The electric fire of claim 1 wherein a flexible insulating layer is provided between the cushion cover and the fire switch.

6. The electric fire of claim 1 wherein the electric fire switch is disposed in a central location of the seat cushion.

7. The electric roasting stove of claim 1, further comprising a kang table, wherein the kang table is a hexahedron constructed by a support frame, and the electric stove is placed inside the hexahedron.

8. The electric heating furnace as set forth in claim 7, wherein the supporting frame comprises a supporting cross bar and a supporting vertical bar, the kang table is detachably assembled by the supporting cross bar and the supporting vertical bar, and the kang table comprises an interlayer built by the supporting cross bar.