CN113483386A

CN113483386A - Safety switch for electric heater and electric heater

Info

Publication number: CN113483386A
Application number: CN202110638864.6A
Authority: CN
Inventors: 何胜阳; 张亮亮
Original assignee: Individual
Current assignee: Cixi Samsonite Electric Appliance Co ltd
Priority date: 2021-06-08
Filing date: 2021-06-08
Publication date: 2021-10-08
Anticipated expiration: 2041-06-08
Also published as: CN113483386B

Abstract

The invention relates to the technical field of heating equipment, in particular to a safety switch for an electric heater and the electric heater. An electric heater comprises the safety switch and the U-shaped containing box, wherein the U-shaped containing box is rotatably connected with a heat dissipation module, a swinging mechanism is arranged in the U-shaped containing box, and the swinging mechanism is fixedly connected with the heat dissipation module; the top end of the U-shaped containing box is fixed with a clothes hanger. The electric heater is used for drying clothes on the clothes hanger, and the clothes hanger can supply heat to people in winter when being detached; through the heat dissipation module, thereby prevent on the one hand with the safety switch cooperation that the clothing on the clothes hanger that dries in the air from producing high temperature and igniting the clothing on the electric heater, on the other hand and swing mechanism cooperation guide heat dissipation direction are dried the clothes on the clothes hanger that dries in the air better.

Description

Safety switch for electric heater and electric heater

Technical Field

The invention relates to the technical field of heating equipment, in particular to a safety switch for an electric heater and the electric heater.

Background

In daily life, due to climate reasons, the clothes are difficult to dry, and inconvenience is brought to users. Especially in winter or plum rain season, the air humidity is relatively high, and the washed clothes are not easy to dry under the natural drying condition. In order to solve the problem that clothes are difficult to dry due to climate reasons, people adopt a heater to be provided with a clothes hanger to dry the clothes around the heater, so that the clothes are easy to dry, but in the process of drying the clothes, when the clothes fall on the electric heater, the heat dissipation of the electric heater is blocked, the electric heater is burnt out or the clothes are ignited to cause fire;

therefore, the invention provides a safety switch for an electric heater and the electric heater.

Disclosure of Invention

The invention provides a safety switch for an electric heater and the electric heater, aiming at solving the problem that in the process of drying clothes, when the clothes fall on the electric heater, the heat dissipation of the electric heater is blocked, the electric heater can be burnt out or the clothes are ignited to cause fire.

In order to achieve the purpose, the invention adopts the following technical scheme:

the utility model provides a safety switch for electric heater, includes the U-shaped casing, presses the briquetting and touch switch, the rotation is connected with the axis of rotation in the U-shaped casing, be fixed with in the axis of rotation and press the briquetting, the bottom mounting according to the briquetting has two iron sheets, be fixed with coil and touch switch on the inside bottom of U-shaped casing, coil and touch switch are located two respectively the bottom of iron sheet.

Preferably, an iron column is fixed inside the coil and used for increasing the magnetic force of the coil, and two ends of the coil are respectively and electrically connected with the V-shaped copper sheet and the V-shaped zinc sheet.

In order to better achieve the above object, the present invention further provides an electric heater, comprising the above-mentioned safety switch, and the U-shaped receiving box, the heat dissipation module and the swing mechanism, a clapboard is fixed in the U-shaped containing box and divides the U-shaped containing box into an upper chamber and a lower chamber, the upper chamber is rotatably connected with a heat dissipation module, the lower chamber is fixedly connected with a heating pipe, and the side wall of the U-shaped containing box is provided with a vent, the vent is communicated with the lower cavity, the heating pipe and the touch switch are electrically connected with an external power supply, a plurality of first motors are fixed at the bottom end of the heating pipe on the U-shaped containing box, a second motor is fixed at one side close to the U-shaped containing box and used for providing power for the swinging mechanism, an output shaft of the second motor is provided with a swinging mechanism, and the swinging mechanism is fixedly connected with the heat dissipation module; the top of the U-shaped containing box is fixed with a clothes hanger through a screw, the bottom of the U-shaped containing box is rotatably connected with a moving wheel, and the moving wheel is used for moving the electric heater.

The clothes hanger is fixed at the top end of the U-shaped containing box through the screws, so that clothes on the clothes hanger are dried by the electric heater, and the electric heater supplies heat to people in winter when the clothes hanger is detached; due to the fact that the climate is dry in winter, water is added into the upper cavity manually, and then the electric heater is used for evaporating the water, so that the humidifying effect is achieved; through the heat dissipation module of special design, on the one hand through heat dissipation module and safety switch cooperation, prevent that the clothing on the clothes hanger that dries in the air from falling into the U-shaped box of holding, thereby because the danger that the clothing caused the conflagration is ignited to the high temperature of electric heater, on the other hand passes through heat dissipation module and swing mechanism cooperation, changes the heat dissipation direction of electric heater to clothes on the clothes hanger that dries in the air are dried better.

Preferably, the output shaft of the first motor is fixed with fan blades, the fan blades are driven to rotate by the first motor, then the fan blades are used for accelerating the diffusion speed of heat of the heating pipe, clothes on the clothes hanger can be better dried, and the fan blades are adjacent to the heating pipe, so that the fan blades are prevented from being damaged by the heat of the heating pipe, and the fan blades made of metal materials are more in line with the use environment of the clothes hanger.

Preferably, heat dissipation module includes gear, a plurality of fin and a plurality of connecting axle, the connecting axle is held the box with the U-shaped and is rotated and be connected, the one end of connecting axle is fixed with the gear, gear and rack toothing, the rack slides in the lateral wall that the box was held to the U-shaped, and is a plurality of heat dissipation module passes through gear and rack toothing and connects, the other end of connecting axle passes fin and the U-shaped lateral wall and swing mechanism fixed connection that hold the box.

According to the invention, the swinging mechanism drives the connecting shaft to rotate, so that the fins are driven to rotate, and the purpose of conveying the heat of the heating pipe to different directions is realized by matching with the wind power output by the first motor; when the connecting shaft rotates, the gear fixed on the connecting shaft drives the rack to slide, so that linkage of a plurality of fins is realized, and the practicability is improved.

Preferably, the fins are made of hard plastic, a plurality of fins are arranged at one end, close to the partition plate, of each fin, a plurality of V-shaped copper sheets and a plurality of V-shaped zinc sheets are fixed on the outer surfaces of the fins in a staggered mode, and the V-shaped copper sheets and the V-shaped zinc sheets are connected together in series.

The safety switch is controlled by connecting a plurality of V-shaped copper sheets and V-shaped zinc sheets in series, and supplying electricity to the safety switch by using heat of a heating pipe, wherein the principle is that the thermoelectric phenomenon of voltage difference between two substances is caused by temperature difference of two different electric conductors or semiconductors through a Seebeck effect, namely a first thermoelectric effect; the fins accelerate the heat dissipation of the connecting ends of the V-shaped copper sheets and the V-shaped zinc sheets, and in the rotating process of the fins, the temperature of the connecting ends of the V-shaped copper sheets and the V-shaped zinc sheets far away from the partition plate is lower than that of the connecting ends of the V-shaped copper sheets and the V-shaped zinc sheets close to the partition plate, so that the Seebeck effect can be realized; the swing mechanism drives the fins to turn over back and forth, so that the connecting ends of the V-shaped copper sheets and the V-shaped zinc sheets are heated uniformly, the V-shaped copper sheets and the V-shaped zinc are prevented from generating current too early, and the safety switch is prevented from being powered off too early.

Preferably, the outer surfaces of the fins, the V-shaped copper sheets and the V-shaped zinc sheets are coated with coatings, the coatings are made of methyl phenyl silicone rubber, the fins, the V-shaped copper sheets and the V-shaped zinc sheets are positioned in a heating environment of the heating pipe, water on clothes has a corrosion effect, the fins, the V-shaped copper sheets and the V-shaped zinc sheets are damaged due to long-term dripping of the water on the clothes, and the methyl phenyl silicone rubber is corrosion-resistant and can be used at 250 ℃ for a long time, so that the use environment of the invention is met.

Preferably, the touch switch, the first motor, the second motor and the heating pipe are connected with a power supply in series, so that the safety control is facilitated.

Preferably, swing mechanism includes worm wheel, worm, L shape pole and pendulum rod, the worm wheel is fixed on the output shaft of No. two motors, worm wheel and worm meshing, the one end of worm is fixed with interior ratchet, interior ratchet internal rotation is connected with the connecting rod, be fixed with the plectrum on the connecting rod, interior ratchet drives the connecting rod through the plectrum and rotates, the connecting rod is kept away from the one end of interior ratchet and is passed lateral wall and L shape pole fixed connection that the box was held to the U-shaped, pendulum rod and connecting axle fixed connection, be provided with the spout on the pendulum rod, sliding connection has L shape pole in the spout.

According to the invention, the second motor drives the worm meshed with the worm wheel to rotate, so that the ratchet wheel and the shifting piece drive the connecting rod to rotate, the connecting rod drives the L-shaped rod to slide in the chute on the oscillating bar, the oscillating bar is further oscillated, the oscillating mechanism drives the fins to oscillate, and the purpose of conveying the heat of the heating pipe to different directions is realized; when clothes fall on the heat dissipation module, because the weight of the clothes can increase the shearing force of the inner ratchet wheel to the shifting sheet, the shifting sheet bends and slides in the inner ratchet wheel, the inner ratchet wheel cannot continuously drive the heat dissipation module to rotate, at the moment, one side of the fin is always roasted by heat of the heating tube, the clothes are covered to further hinder heat dissipation, the temperature of the connecting end of the V-shaped copper sheet and the V-shaped zinc sheet at the side is higher than that of the connecting end of the V-shaped copper sheet and the V-shaped zinc sheet at the other side of the fin, and the Seebeck effect is utilized to generate current on the V-shaped copper sheet and the V-shaped zinc sheet, so that the electric quantity is provided for the safety switch, and the power failure of the safety switch is realized.

Preferably, a plurality of bulges are arranged on one side of the partition board close to the upper cavity, through holes are arranged in the bulges and are used for communicating the upper cavity with the lower cavity, and the water is prevented from entering the lower cavity through the through holes when water is artificially added through the plurality of bulges.

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

1. according to the invention, the coil is electrified to generate magnetic force, and the magnetic force attracts the iron sheet at the bottom end of the pressing block, so that the pressing block is driven to be away from the touch switch, the electric heater is powered off, and the purpose of safety protection is realized; the clothes hanger is fixed at the top end of the U-shaped containing box through the screws, so that clothes on the clothes hanger are dried by the electric heater, and the electric heater supplies heat to people in winter when the clothes hanger is detached; due to the fact that the climate is dry in winter, water is added into the upper cavity manually, and then the electric heater is used for evaporating the water, so that the humidifying effect is achieved; through the heat dissipation module of special design, on the one hand through heat dissipation module and safety switch cooperation, prevent that the clothing on the clothes hanger that dries in the air from falling into the U-shaped box of holding, thereby because the danger that the clothing caused the conflagration is ignited to the high temperature of electric heater, on the other hand passes through heat dissipation module and swing mechanism cooperation, changes the heat dissipation direction of electric heater to clothes on the clothes hanger that dries in the air are dried better.

2. The fan blades are driven to rotate by the first motor, then the speed of heat diffusion of the heating pipes is increased by the fan blades, clothes on the clothes hanger can be better dried, and the fan blades are adjacent to the heating pipes, so that the fan blades are prevented from being damaged by the heat of the heating pipes, and the fan blades made of metal materials are more in line with the use environment of the clothes hanger; according to the invention, the swinging mechanism drives the connecting shaft to rotate, so that the fins are driven to rotate, and the purpose of conveying the heat of the heating pipe to different directions is realized by matching with the wind power output by the first motor; when the connecting shaft rotates, the gear fixed on the connecting shaft drives the rack to slide, so that linkage of a plurality of fins is realized, and the practicability is improved.

3. The safety switch is controlled by connecting a plurality of V-shaped copper sheets and V-shaped zinc sheets in series, and supplying electricity to the safety switch by using heat of a heating pipe, wherein the principle is that the thermoelectric phenomenon of voltage difference between two substances is caused by temperature difference of two different electric conductors or semiconductors through a Seebeck effect, namely a first thermoelectric effect; the fins accelerate the heat dissipation of the connecting ends of the V-shaped copper sheets and the V-shaped zinc sheets, and in the rotating process of the fins, the temperature of the connecting ends of the V-shaped copper sheets and the V-shaped zinc sheets far away from the partition plate is lower than that of the connecting ends of the V-shaped copper sheets and the V-shaped zinc sheets close to the partition plate, so that the Seebeck effect can be realized; the swing mechanism drives the fins to turn over back and forth, so that the connecting ends of the V-shaped copper sheets and the V-shaped zinc sheets are heated uniformly, the V-shaped copper sheets and the V-shaped zinc are prevented from generating current too early, and the safety switch is prevented from being powered off too early.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a front cross-sectional view of the present invention;

FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1 in accordance with the present invention;

FIG. 3 is a cross-sectional view taken along line B-B of FIG. 1 in accordance with the present invention;

FIG. 4 is a cross-sectional view taken along line C-C of FIG. 1 in accordance with the present invention;

FIG. 5 is an enlarged view of the invention at D of FIG. 1;

FIG. 6 is an enlarged view of the invention at E of FIG. 2;

fig. 7 is a side view of the present invention.

Description of reference numerals: the safety switch comprises a safety switch 1, a pressing block 11, a touch switch 12, an iron sheet 13, a coil 14, an iron column 15, a U-shaped shell 16, a U-shaped containing box 2, a partition plate 21, a protrusion 211, a heating pipe 22, an air vent 23, a first motor 24, fan blades 241, a second motor 25, a heat dissipation module 3, a gear 31, fins 32, a connecting shaft 33, a rack 34, fins 35, a V-shaped copper sheet 36, a V-shaped zinc sheet 37, a swing mechanism 4, a worm wheel 41, a worm 42, an L-shaped rod 43, a swing rod 44, an inner ratchet wheel 45, a connecting rod 46, a shifting sheet 47, a clothes hanger 5 and a moving wheel 6.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are some, but not all, embodiments of the present invention. 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.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise. Furthermore, the terms "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1 to 7, the present invention provides a technical solution:

the utility model provides a safety switch for electric heater, includes U-shaped casing 16, pressing block 11 and touch switch 12, the rotation of U-shaped casing 16 internal rotation is connected with the axis of rotation, be fixed with pressing block 11 in the axis of rotation, the bottom mounting of pressing block 11 has two iron sheets 13, be fixed with coil 14 and touch switch 12 on the inside bottom of U-shaped casing 16, coil 14 and touch switch 12 are located two respectively the bottom of iron sheet 13.

As a specific embodiment of the present invention, an iron post 15 is fixed inside the coil 14, the iron post 15 is used for increasing the magnetic force of the coil 14, and two ends of the coil 14 are respectively electrically connected with the V-shaped copper sheet 36 and the V-shaped zinc sheet 37, in the present invention, the coil 14 generates magnetic force by energizing the coil 14, the magnetic force attracts the iron sheet 13 at the bottom end of the pressing block 11, and further drives the pressing block 11 to be away from the touch switch, so that the electric heater is powered off, and the purpose of safety protection is achieved.

In order to better achieve the above purpose, the present invention further provides an electric heater, which includes the above safety switch for the electric heater, the U-shaped containing box 2, the heat dissipating module 3 and the swing mechanism 4, wherein a partition plate 21 is fixed in the U-shaped containing box 2, the U-shaped containing box 2 is divided into an upper chamber and a lower chamber by the partition plate 21, the heat dissipating module 3 is rotatably connected in the upper chamber, a heating pipe 22 is fixedly connected in the lower chamber, a vent 23 is arranged on a side wall of the U-shaped containing box 2, the vent 23 is communicated with the lower chamber, the heating pipe 22 and the touch switch 12 are electrically connected with an external power supply, a plurality of first motors 24 are fixed on the U-shaped containing box 2 at the bottom end of the heating pipe 22, a second motor 25 is fixed on one side close to the U-shaped containing box 2, the second motor 25 is used for providing power for the swing mechanism 4, the swing mechanism 4 is arranged on an output shaft of the second motor 25, the swing mechanism 4 is fixedly connected with the heat dissipation module 3; the top of the U-shaped containing box 2 is fixed with a clothes hanger 5 through a screw, the bottom of the U-shaped containing box 2 is rotatably connected with a moving wheel 6, and the moving wheel 6 is used for moving the electric heater.

According to the invention, the clothes hanger 5 is fixed at the top end of the U-shaped containing box 2 through the screws, so that the clothes on the clothes hanger 5 can be dried by the electric heater, and the electric heater can supply heat to people in winter when the clothes hanger 5 is detached; due to the fact that the climate is dry in winter, water is added into the upper cavity manually, and then the electric heater is used for evaporating the water, so that the humidifying effect is achieved; through the radiator module 3 of special design, on the one hand through radiator module 3 and safety switch 1 cooperation, prevent that the clothing on the clothes hanger 5 that dries in the air from falling into U-shaped and holding box 2, thereby ignite the danger that the clothing caused the conflagration because the high temperature of electric heater, on the other hand passes through radiator module 3 and swing mechanism 4 cooperation, changes the heat dissipation direction of electric heater to clothes on the clothes hanger 5 that dries in the air better dry.

As a specific embodiment of the present invention, the fan blade 241 is fixed on the output shaft of the first motor 24, the fan blade 241 is driven to rotate by the first motor 24, and then the fan blade 241 accelerates the diffusion speed of the heat of the heating pipe 22, so that the clothes on the drying rack 5 can be better dried, and since the fan blade 241 is adjacent to the heating pipe 22, the fan blade 241 is prevented from being damaged by the heat of the heating pipe 22, so that the use environment of the present invention is better met by using the fan blade 241 made of a metal material.

As a specific embodiment of the present invention, the heat dissipation module 3 includes a gear 31, a plurality of fins 32, and a plurality of connecting shafts 33, the connecting shafts 33 are rotatably connected to the U-shaped storage box 2, the gear 31 is fixed to one end of the connecting shafts 33, the gear 31 is engaged with a rack 34, the rack 34 slides in a sidewall of the U-shaped storage box 2, the plurality of heat dissipation modules 3 are engaged and connected by the gear 31 and the rack 34, and the other end of the connecting shaft 33 passes through the fins 32 and the sidewall of the U-shaped storage box 2 and is fixedly connected to the swing mechanism 4.

According to the invention, the swinging mechanism 4 drives the connecting shaft 33 to rotate, so that the fins 32 are driven to rotate, and the purpose of conveying the heat of the heating pipe 22 to different directions is realized by matching with the wind power output by the first motor 24; when the connecting shaft 33 rotates, the gear 31 fixed on the connecting shaft 33 drives the rack 34 to slide, so that the linkage of the plurality of fins 32 is realized, and the practicability is improved.

As a specific embodiment of the present invention, the fin 32 is made of hard plastic, one end of the fin 32 close to the partition 21 is provided with a plurality of fins 35, the outer surface of the fin 35 is fixed with a plurality of V-shaped copper sheets 36 and a plurality of V-shaped zinc sheets 37 in a staggered manner, and the plurality of V-shaped copper sheets 36 and the plurality of V-shaped zinc sheets 37 are connected in series.

The safety switch 1 is controlled by connecting a plurality of V-shaped copper sheets 36 and V-shaped zinc sheets 37 in series, and the heat of a heating pipe 22 is utilized to supply electricity to the safety switch 1, so that the safety switch 1 is controlled, the principle is that the Seebeck effect, also called as a first thermoelectric effect, is a thermoelectric phenomenon that the voltage difference between two substances is caused by the temperature difference of two different electric conductors or semiconductors, in a circuit formed by two metals A and B, in a popular way, if the temperatures of two contact points are different, current appears in the circuit, and the current is called as thermoelectric current; the fins 35 accelerate the heat dissipation of the connecting ends of the V-shaped copper sheets 36 and the V-shaped zinc sheets 37, and in the rotation process of the fins 32, the temperature of the connecting ends of the V-shaped copper sheets 36 and the V-shaped zinc sheets 37 far away from the partition plate 21 is lower than that of the connecting ends of the V-shaped copper sheets 36 and the V-shaped zinc sheets 37 close to the partition plate 21, so that the Seebeck effect can be realized; the fin 32 is driven to turn over back and forth by the swing mechanism 4, so that the connecting ends of the V-shaped copper sheets 36 and the V-shaped zinc sheets 37 are heated uniformly, and the situation that the V-shaped copper sheets 36 and the V-shaped zinc generate current prematurely and then the safety switch 1 is powered off prematurely is prevented.

As a specific embodiment of the present invention, the outer surfaces of the fins 32, the fins 35, the V-shaped copper sheets 36 and the V-shaped zinc sheets 37 are coated with a coating, the coating is made of a methyl phenyl silicone rubber material, because the fins 32, the fins 35, the V-shaped copper sheets 36 and the V-shaped zinc sheets 37 are in a heated environment of the heating pipe 22, water on clothes has a corrosive effect, four of the water can be damaged if the water drips on the fins 32, the fins 35, the V-shaped copper sheets 36 and the V-shaped zinc sheets 37 for a long time, the methyl phenyl silicone rubber material is corrosion resistant, and can be used at 250 ℃ for a long time, so as to meet the use environment of the present invention.

As a specific embodiment of the present invention, the touch switch 12, the first motor 24, the second motor 25 and the heating pipe 22 are connected in series with a power supply, which facilitates safety control.

As a specific embodiment of the present invention, the swing mechanism 4 includes a worm wheel 41, a worm 42, an L-shaped rod 43, and a swing rod 44, the worm wheel 41 is fixed on an output shaft of the second motor 25, the worm wheel 41 is engaged with the worm 42, one end of the worm 42 is fixed with an inner ratchet wheel 45, the inner ratchet wheel 45 is rotatably connected with a connecting rod 46, a plectrum 47 is fixed on the connecting rod 46, the inner ratchet wheel 45 drives the connecting rod 46 to rotate through the plectrum 47, one end of the connecting rod 46 far away from the inner ratchet wheel 45 penetrates through a side wall of the U-shaped accommodating box 2 to be fixedly connected with the L-shaped rod 43, the swing rod 44 is fixedly connected with the connecting shaft 33, a sliding slot is provided on the swing rod 44, and the L-shaped rod 43 is slidably connected with the sliding slot.

According to the invention, the second motor 25 drives the worm 42 meshed with the worm wheel 41 to rotate, the connecting rod 46 is driven to rotate through the ratchet wheel and the shifting piece 47, the connecting rod 46 drives the L-shaped rod 43 to slide in the chute on the oscillating rod 44, so that the oscillating rod 44 oscillates, the oscillating mechanism 4 drives the fins 32 to oscillate, and the purpose of conveying the heat of the heating pipe 22 to different directions is realized; when clothes fall on the heat dissipation module 3, because the weight of the clothes can increase the shearing force of the inner ratchet wheel 45 to the shifting sheet 47, the shifting sheet 47 bends and slides in the inner ratchet wheel 45, so that the inner ratchet wheel 45 cannot continuously drive the heat dissipation module 3 to rotate, at the moment, one side of the fin 32 is always roasted by the heat of the heating pipe 22, and the clothes are covered to further hinder heat dissipation, so that the temperature of the connecting end of the V-shaped copper sheet 36 and the V-shaped zinc sheet 37 at the side is higher than that of the connecting end of the V-shaped copper sheet 36 and the V-shaped zinc sheet 37 at the other side of the fin 32, and the Seebeck effect is utilized to generate current on the V-shaped copper sheet 36 and the V-shaped zinc sheet 37, so that the electric quantity is provided for the safety switch 1, and the power failure of the safety switch 1 is realized.

As a specific embodiment of the invention, one side of the partition board 21 close to the upper chamber is provided with a plurality of protrusions 211, through holes are arranged in the protrusions 211, the through holes communicate the upper chamber with the lower chamber, and the invention prevents water from entering the lower chamber through the through holes when water is artificially added through the plurality of protrusions 211.

The working principle is as follows: according to the invention, the clothes hanger 5 is fixed at the top end of the electric heater manually, clothes to be dried are hung on the clothes hanger 5, then the switch is turned on, the heating pipe 22, the first motor 24 and the second motor 25 are electrified to work, the second motor 25 drives the worm 42 meshed with the worm wheel 41 to rotate, the ratchet wheel and the shifting piece 47 drive the connecting rod 46 to rotate, the connecting rod 46 drives the L-shaped rod 43 to slide in the chute on the oscillating rod 44, the oscillating rod 44 is further oscillated, the oscillating rod 44 drives the connecting shaft 33 to rotate, and the oscillating mechanism 4 drives the fin 32 to oscillate, so that the purpose of conveying the heat of the heating pipe 22 to different directions is realized, and the clothes on the clothes hanger 5 are dried better; when clothes fall on the heat dissipation module 3, the force required for driving the fins 32 to move is increased due to the weight of the clothes, so that the force required to be provided on the swing mechanism 4 is larger than before, the force required for driving the fins 32 to move is provided by the second motor 25 through the connecting rod 46, and the connecting rod 46 is driven to rotate through the cooperation of the inner ratchet wheel 45 and the poking sheet 47, so that when the clothes fall on the heat dissipation module 3, the shearing force of the inner ratchet wheel 45 on the poking sheet 47 is increased, so that the poking sheet 47 is bent and slides on the inner ratchet wheel 45, the inner ratchet wheel 45 cannot drive the heat dissipation module 3 to rotate, at the moment, one side of the fins 32 is always roasted by the heat of the heating pipe 22, the clothes are covered, the heat dissipation is also hindered, and the temperature of the connecting ends of the V-shaped copper sheets 36 and the V-shaped zinc sheets 37 at the side is higher than that of the connecting ends of the V-shaped copper sheets 36 and the V-shaped zinc sheets 37 at the other side of the fins 32, the seebeck effect, also called as a first thermoelectric effect, is a thermoelectric phenomenon that a voltage difference between two substances is caused by a temperature difference between two different electrical conductors or semiconductors, in a circuit formed by two metals a and B, if the temperatures of two contact points are different, a current, called as a thermoelectric current, appears in the circuit, so that the V-shaped copper sheet 36 and the V-shaped zinc sheet 37 generate a current, and further provide electricity for the safety switch 1, the coil 14 is energized, the coil 14 generates a magnetic force, the magnetic force attracts the iron sheet 13 at the bottom end of the pressing block 11, and the pressing block 11 is hinged to the U-shaped shell 16 at a central position, so that the pressing block 11 near one end of the coil 14 moves to one side of the coil 14, and the pressing block 11 near one side of the touch switch 12 is far away from the touch switch 12, so that the electric heater is powered off, and the purpose of safety protection is achieved.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. The utility model provides a safety switch for electric heater, includes U-shaped casing (16), presses briquetting (11) and touch switch (12), its characterized in that: the U-shaped shell (16) is rotatably connected with a rotating shaft, a pressing block (11) is fixed on the rotating shaft, two iron sheets (13) are fixed at the bottom end of the pressing block (11), a coil (14) and a touch switch (12) are fixed at the bottom end of the interior of the U-shaped shell (16), and the coil (14) and the touch switch (12) are respectively located at the bottom ends of the two iron sheets (13).

2. A safety switch (1) for electric heater according to claim 1, characterized in that: an iron column (15) is fixed inside the coil (14), and two ends of the coil (14) are respectively and electrically connected with a V-shaped copper sheet (36) and a V-shaped zinc sheet (37).

3. An electric heater comprising the safety switch (1) of any of the previous claims 1-2, the U-shaped housing box (2), the heat dissipation module (3) and the oscillating mechanism (4), characterized in that: a partition plate (21) is fixed in the U-shaped containing box (2), the U-shaped containing box (2) is divided into an upper chamber and a lower chamber by the partition plate (21), a heat dissipation module (3) is connected in the upper chamber in a rotating mode, a heating pipe (22) is fixedly connected in the lower chamber, a ventilation opening (23) is formed in the side wall of the U-shaped containing box (2), the ventilation opening (23) is communicated with the lower chamber, the heating pipe (22) and a touch switch (12) are electrically connected with an external power supply, a plurality of first motors (24) are fixed at the bottom end of the heating pipe (22) on the U-shaped containing box (2), a second motor (25) is fixed on one side close to the U-shaped containing box (2), a swing mechanism (4) is arranged on an output shaft of the second motor (25), and the swing mechanism (4) is fixedly connected with the heat dissipation module (3); the top end of the U-shaped containing box (2) is fixed with a clothes hanger (5) through a screw, and the bottom end of the U-shaped containing box (2) is rotatably connected with a movable wheel (6).

4. An electric heater as claimed in claim 3, characterised in that: the output shaft of the first motor (24) is fixedly provided with fan blades (241), and the fan blades (241) are made of metal materials.

5. An electric heater as claimed in claim 3, characterised in that: radiating module (3) include gear (31), a plurality of fin (32) and a plurality of connecting axle (33), box (2) rotation connection is held with the U-shaped in connecting axle (33), the one end of connecting axle (33) is fixed with gear (31), gear (31) and rack (34) meshing, rack (34) slide in the lateral wall that box (2) were held to the U-shaped, and are a plurality of radiating module (3) are connected through gear (31) rack (34) meshing, the lateral wall and swing mechanism (4) fixed connection that box (2) were held to fin (32) and U-shaped is passed to the other end of connecting axle (33).

6. An electric heater as claimed in claim 5, characterised in that: the fin (32) is made of hard plastic, a plurality of fins (35) are arranged at one end, close to the partition plate (21), of the fin (32), a plurality of V-shaped copper sheets (36) and a plurality of V-shaped zinc sheets (37) are fixed on the outer surface of each fin (35) in a staggered mode, and the V-shaped copper sheets (36) and the V-shaped zinc sheets (37) are connected in series.

7. An electric heater as claimed in claim 6, characterised in that: the outer surfaces of the fins (32), the fins (35), the V-shaped copper sheets (36) and the V-shaped zinc sheets (37) are coated with coatings, and the coatings are made of methyl phenyl silicone rubber.

8. An electric heater as claimed in claim 3, characterised in that: the touch switch (12), the first motor (24), the second motor (25) and the heating pipe (22) are connected with a power supply in series.

9. An electric heater as claimed in claim 5, characterised in that: swing mechanism (4) include worm wheel (41), worm (42), L shape pole (43) and pendulum rod (44), worm wheel (41) are fixed on the output shaft of No. two motor (25), worm wheel (41) and worm (42) meshing, the one end of worm (42) is fixed with interior ratchet (45), interior ratchet (45) internal rotation is connected with connecting rod (46), be fixed with plectrum (47) on connecting rod (46), interior ratchet (45) drive connecting rod (46) through plectrum (47) and rotate, the lateral wall and the L shape pole (43) fixed connection that box (2) were held to the U-shaped is passed to the one end that interior ratchet (45) were kept away from in connecting rod (46), pendulum rod (44) and connecting axle (33) fixed connection, be provided with the spout on pendulum rod (44), sliding connection has L shape pole (43) in the spout.

10. An electric heater as claimed in claim 3, characterised in that: one side of the partition plate (21) close to the upper cavity is provided with a plurality of protrusions (211), through holes are formed in the protrusions (211), and the upper cavity is communicated with the lower cavity through the through holes.