CN211060389U

CN211060389U - Electric water heater with safe voltage

Info

Publication number: CN211060389U
Application number: CN201922085134.9U
Authority: CN
Inventors: 张文明; 罗浩
Original assignee: Shenzhen Derun Mingyu Technology Co ltd
Current assignee: Shenzhen Derun Mingyu Technology Co ltd
Priority date: 2019-11-26
Filing date: 2019-11-26
Publication date: 2020-07-21
Anticipated expiration: 2029-11-26

Abstract

The utility model discloses an electric water heater of safe voltage, including shell, inner bag, superlattice nanometer heating tube and transformer, the inner bag sets up in the shell, be provided with delivery port and water inlet on the inner bag, the water inlet with delivery port department all is provided with prevents the electric wall, superlattice nanometer heating tube sets up inside the inner bag for heat the water in the inner bag, superlattice nanometer heating tube passes through conductor and transformer connector, the transformer is used for converting 220V commercial power into 24V safe voltage, has improved electric water heater's security performance; and the transformer is provided with the phase line zero line reverse protection device, when the voltage provided for the electric water heater exceeds 36V, the electric water heater is powered off, the damage to the human body is avoided, and even if the zero line and the phase line are reversely connected, the phase line zero line reverse protection device can monitor the voltage value, so that the safety performance of the electric water heater is further improved.

Description

Electric water heater with safe voltage

Technical Field

The utility model relates to an electric water heater technical field especially relates to an electric water heater of safe voltage.

Background

The electric water heater is a water heater which heats by taking electricity as energy. The electric water heater is an essential household appliance in daily life, but how to effectively prevent electric leakage of the electric water heater when the electric water heater is used is a hot topic, and because whether the electric water heater has the condition of electric leakage or not, the electric water heater is related to personal safety problems of the masses. The existing electric water heater is generally only provided with an electricity-proof wall at a water outlet, the physical voltage and resistance relation is utilized, the water channel is prolonged, the water resistance effect is further prolonged, the voltage is unchanged, the electricity is prevented by the principle of reducing the current, but the electricity-proof mode is single, and once the electricity is leaked, the human body can still be greatly injured.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model discloses an electric water heater of safe voltage utilizes the less safe voltage of magnitude of voltage to heat the water in the inner bag through superlattice nanometer heating tube to set up the phase line zero line and connect anti-protection device, can prevent that the voltage that provides for electric water heater from exceeding 36V.

The utility model discloses an electric water heater of safe voltage, including shell, inner bag and protective housing, the inner bag with the protective housing all sets up inside the shell, and the inner bag sets up inside the protective housing, be connected with water inlet and delivery port on the inner bag, the water inlet with delivery port department all is connected with prevents the electric wall, the inside of inner bag is provided with an at least superlattice nanometer heating tube, superlattice nanometer heating tube passes through conductor and transformer electric connection, transformer and mains connection for turn into 24V's safe voltage with the commercial power, and be provided with phase line zero line and connect anti-protection device in the transformer, prevent to do the voltage that electric water heater provided exceeds 36V.

Further, the superlattice nanometer heating tube comprises a heating shell, the heating shell is a hollow sealing shell, an electrode layer and an electric heating film nanometer heating layer are sprayed on the inner surface of the heating shell, a wiring end is arranged at one end of the heating shell, one end of the wiring end is electrically connected with the transformer through a conductor, the other end of the wiring end is connected with the electrode layer, and the electric heating film nanometer heating layer is electrified through the electrode layer, so that the electric heating film nanometer heating layer generates heat.

Further, the spraying thickness of the connection position of the electrode layer and the terminal is larger than that of other positions.

Further, the heat-generating envelope is made of quartz glass.

Furthermore, an insulating layer is sprayed on the outer surface of the heating shell.

Furthermore, a temperature sensor is arranged inside the inner container and used for sensing the water temperature in the inner container.

Furthermore, a liquid crystal control panel is arranged on the shell, and the liquid crystal control panel is electrically connected with the transformer and the temperature sensor and can display the temperature identified by the temperature sensor.

Furthermore, a voltage signal identifier and a protection capacitor are arranged on the phase line zero line reverse connection protection device, the voltage signal identifier is respectively connected with the phase line and the zero line, the protection capacitor is connected on the phase line, the voltage signal identifier is used for identifying the voltage on the phase line, and when the voltage on the phase line exceeds 36V, the protection capacitor is fused.

Furthermore, a heat insulation material is filled between the protective shell and the inner container.

The technical scheme of the utility model, compared with the prior art, beneficial effect is:

the commercial power converts 220V voltage into 24V voltage through the transformer, the superlattice nanometer heating tube is electrified through the 24V voltage to heat water in the inner container, and the 24V voltage is within a safe voltage value range and cannot cause damage to a human body; the transformer is provided with the phase line zero line reverse protection device, when the voltage provided for the electric water heater exceeds 36V, the electric water heater is powered off, the human body is prevented from being injured, and even if the zero line and the phase line are reversely connected, the phase line zero line reverse protection device can monitor the voltage value.

Drawings

FIG. 1 is a schematic structural diagram of an electric water heater;

FIG. 2 is a schematic diagram of the operation of the phase line neutral anti-reverse protection device;

FIG. 3 is a schematic structural diagram of a superlattice nano heating tube;

description of the figures

100. An electric water heater; 10. a housing; 20. an inner container; 21. a water inlet; 22. a water outlet; 23. an electricity-proof wall; 24. a thermal insulation material; 30. a protective shell; 40. a superlattice nano heating tube; 41. a heat-generating housing; 42. a terminal; 43. an electrode layer; 44. a nano heating layer of the electric heating film; 45. an insulating layer; 50. a transformer; 51. the phase line zero line is connected with an inverse protection device; 511. a voltage signal identifier; 512. a protection capacitor; 513. a phase line; 514. a zero line; 60. and a liquid crystal control panel.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it should be noted that when one component is considered to be "connected" to another component, it may be directly connected to the other component or intervening components may exist. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It should also be noted that, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly and can include, for example, fixed connections, removable connections, or integral connections; either mechanically or electrically, and may be internal to both elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

It should be further noted that in the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

As shown in fig. 1, an electric safety water heater 100 includes a housing 10, an inner container 20, a protective shell 30, and a superlattice nano heating tube 40, wherein the inner container 20 and the protective shell 30 are both disposed inside the housing 10, the inner container 20 is disposed inside the protective shell 30, the inner container 20 is used for storing water, and the superlattice nano heating tube 40 is used for heating water in the inner container 20.

Be provided with water inlet 21 and delivery port 22 on the inner bag, water inlet 21 is used for the inside water injection to inner bag 20, delivery port 22 passes through the pipeline and is connected with outside gondola water faucet for the drainage. The water inlet 21 and the water outlet 22 are connected with an electricity-proof wall 23 to play a role in preventing electricity leakage.

The protective shell 30 is used for protecting the inner container 20 and preventing the inner container 20 from being damaged by external force. In this embodiment, a gap exists between the protective shell 30 and the inner container 20, and a thermal insulation material 24 is filled between the protective shell 30 and the inner container 20 to insulate the inner container 20. The insulating material 24 may be an insulating sponge.

At least one superlattice nanometer heating tube 40 sets up the inside of inner bag 20, superlattice heating tube 40 is connected with external power source electricity through the conductor, superlattice nanometer heating tube 40 is the electricity heating element, can turn into heat energy with the electric energy, heats for the water in the inner bag 20. The conductor may be a wire.

The superlattice nanometer heating tube 40 is electrically connected with the output end of the transformer 50 through a conductor, the input end of the transformer 50 is connected with a mains supply, the transformer 50 is used for converting the mains supply with the voltage of 220V into the safe voltage of 24V, and the 24V cannot cause harm to a human body within the safe voltage range.

Referring to fig. 2, in the present embodiment, the transformer 50 is further connected with a phase line zero line reverse protection device 51, and the phase line zero line reverse protection device 51 is used for identifying a voltage value provided for the electric water heater 100, and when the identified voltage value exceeds 36V, the electric water heater 100 is automatically powered off, and a protection measure is further added, so that the safety performance of the electric water heater 100 is improved. The phase line zero line reverse connection protection device 51 comprises a voltage signal identifier 511 and a protection capacitor 512, wherein the voltage signal identifier 511 is respectively connected with a phase line 513 and a zero line 514, the protection capacitor 512 is connected on the phase line 513, and when the voltage identified by the voltage signal identifier 511 exceeds 36V, the protection capacitor 512 is fused, so that the transformer 50 cannot provide electric energy for the electric water heater 100. Even if the phase line 513 and the zero line 514 are connected in reverse, the switch of the electric water heater 100 is turned off, because the phase line 513 and the zero line 514 are connected in reverse, the voltage still exists on the phase line 513, but at this time, if the voltage signal identifier 511 monitors that the voltage on the phase line 513 exceeds 36V, the protection capacitor 514 is still blown out, and the safety performance of the electric water heater 100 is further improved.

With continued reference to fig. 3, the superlattice nano-heating tube 40 includes a heating casing 41, the heating casing 41 is a hollow sealed casing, one end of the heating casing 41 is provided with a terminal 42, and the terminal 42 is used for communicating with an external power supply. The inside spraying of heating shell 41 has electrode layer 43 and electric heat membrane nanometer layer 44 that generates heat, electrode layer 43 can conduct electricity, the one end of wiring end 42 pass through the conductor with transformer 50's output electric connection, the other end of wiring end 42 with electrode layer 43 electric connection, wiring end 42 accessible electrode layer 43 does electric heat membrane nanometer layer 44 that generates heat circular telegram, electric heat membrane nanometer layer 44 that generates heat converts the electric energy into heat energy for superlattice nanometer heating tube 40 generates heat, for the water heating in inner bag 20.

In this embodiment, the thickness of the electrode layer 43 sprayed at the position where the electrode layer 43 is connected to the terminal 42 is greater than the thickness of the electrode layer 43 at other positions, because the instantaneous current flowing through the terminal 42 to the electrode layer 43 is large, the electrode layer 43 is easily damaged, and thickening the electrode layer 43 at this position can make the electrode layer 43 more stable during current flowing.

The heating shell 41 is made of quartz glass, and the quartz glass is made by melting various pure natural quartz (such as crystal, quartz sand and the like). The quartz glass has extremely small linear expansion coefficient, is 1/10-1/20 of common glass, and has good thermal shock resistance and heat resistance.

In this embodiment, an insulating layer 45 is further sprayed on the outer surface of the heat generating housing 41, which further has an insulating effect.

Referring back to fig. 1, a temperature sensor is disposed in the inner container 20, the temperature sensor senses the temperature of the water in the inner container 20, a liquid crystal control panel 60 is embedded in the housing 10, the liquid crystal control panel 60 is electrically connected to the transformer 50 and the temperature sensor, and the transformer 50 provides electric energy for the liquid crystal control panel 60. When the superlattice nanometer heating tube 40 heats the water in the inner container 20, the temperature sensor can sense the water temperature, and transmit the detected water temperature signal to the liquid crystal control panel 60, and the signal is displayed on the liquid crystal control panel 60.

The present invention can be designed in various embodiments and modifications without departing from the spirit and scope of the present invention in its broadest sense, and the above-described embodiments are intended to illustrate the present invention, but not to limit the scope of the present invention.

Claims

1. The utility model provides an electric water heater of safe voltage, includes shell, inner bag and protective housing, the inner bag with the protective housing all sets up inside the shell, and the inner bag sets up inside the protective housing, be connected with water inlet and delivery port on the inner bag, the water inlet with delivery port department all is connected with prevents the electric wall, its characterized in that, the inside of inner bag is provided with an at least superlattice nanometer heating tube, superlattice nanometer heating tube passes through conductor and transformer electric connection, the transformer is connected with the commercial power for turn into 24V's safe voltage with the commercial power, and be provided with phase line zero line in the transformer and connect anti-protection device, prevent for the voltage that electric water heater provided exceeds 36V.

2. The safe-voltage electric water heater according to claim 1, wherein the superlattice nano heating tube comprises a heating shell, the heating shell is a hollow sealed shell, an electrode layer and an electric heating film nano heating layer are sprayed on the inner surface of the heating shell, one end of the heating shell is provided with a terminal, one end of the terminal is electrically connected with the transformer through a conductor, the other end of the terminal is connected with the electrode layer, and the electric heating film nano heating layer is electrified through the electrode layer, so that the electric heating film nano heating layer generates heat.

3. A safety-voltage electric water heater according to claim 2, wherein the thickness of the coating at the position where said electrode layer is connected to said terminal is greater than the thickness of the coating at other positions.

4. A safety-voltage electric water heater as claimed in claim 3, wherein said heat-generating casing is made of quartz glass.

5. A safety electric water heater as claimed in any one of claims 2 to 4, wherein the outer surface of said heat generating casing is further coated with an insulating layer.

6. A safety-voltage electric water heater as claimed in claim 1, wherein a temperature sensor is provided inside said inner container for sensing the temperature of water in said inner container.

7. A safety-voltage electric water heater according to claim 6, wherein a liquid crystal control panel is provided on said housing, said liquid crystal control panel being electrically connected to said transformer and to said temperature sensor and being capable of displaying the temperature detected by said temperature sensor.

8. The safety voltage electric water heater according to claim 1, wherein a voltage signal identifier and a protection capacitor are disposed on the phase line and zero line reverse protection device, the voltage signal identifier is respectively connected to the phase line and the zero line, the protection capacitor is connected to the phase line, the voltage signal identifier is used for identifying the voltage on the phase line, and the protection capacitor is blown when the voltage on the phase line exceeds 36V.

9. A safety-voltage electric water heater as claimed in claim 1, wherein a thermal insulation material is filled between said protective casing and said inner container.