CN211204407U

CN211204407U - Water heater of cutting off power supply of intaking

Info

Publication number: CN211204407U
Application number: CN201921557293.8U
Authority: CN
Inventors: 胡春明; 梁秋华
Original assignee: Guangdong Well Born Electric Appliances Co ltd
Current assignee: Guangdong Well Born Electric Appliances Co ltd
Priority date: 2019-09-19
Filing date: 2019-09-19
Publication date: 2020-08-07
Anticipated expiration: 2029-09-19

Abstract

The utility model belongs to the field of water heaters, and discloses a water heater with water inlet and power off, which comprises a core plate and an inner container, wherein the inner container is provided with a water flow sensor and an electric heating tube, the outer end of the water flow sensor is communicated with the signal input end of the core plate, the water heater also comprises a control panel, the control panel is sequentially communicated with a switch control unit, an optical coupler detection unit and a first relay, and the signal output end of the core plate is communicated with the signal input end of the switch control unit; the optical coupling detection unit and the switch control unit are arranged in parallel, the output end of the first relay is communicated with the positive electrode of the electric heating tube, and the high-voltage input end of the first relay is communicated with the positive electrode of an external power supply; the scheme solves the problems that tap water enters the inner container of the water heater, the heating of the electric heating tube cannot be automatically cut off, and the electric heating tube cannot be automatically heated after water enters after the manual cutting-off and stopping.

Description

Water heater of cutting off power supply of intaking

Technical Field

The utility model relates to a water heater field, especially a water heater of outage of intaking.

Background

The development of the electric water heater is over ten years, the technology of the water heater is continuously improved, innovative products such as an electricity-proof wall, an electricity-proof brake, 3D quick heating, frequency conversion capacity increasing and the like appear in the industry, the electric water heater is continuously improved in the aspects of safety, energy conservation, heating speed, water yield and the like, and the market sales is continuously increased all the year round. With the improvement of living standard in recent years, people have more and more demand on water consumption, but the electric leakage risk existing in the water consumption is not negligible.

The water heater is generally in a always-on state or a manually-closed state, if the water heater is in the always-on state, the insulating property of an electric heating pipe in the water heater is deteriorated, and water is easily electrified in the bathing process; if the water heater is in a manual closing state by pressing a closing button, pulling a power line and the like, the preheating is slow, and the next user is influenced; or frequent plugging and unplugging of the power line can cause poor contact between the socket and the plug, thereby generating other potential safety hazards, and the power socket of the water heater is inconvenient to plug and unplug the power line because the power socket is arranged at the position 1.8m high away from the ground according to the standard requirement.

For example, the technical scheme of patent publication No. CN 207262728U discloses a low power consumption detection display system of an electric water heater, which comprises a control box and an electric water heater control system, wherein the control system detects data of each sensor by adopting an intermittent dormancy awakening mode through the communication connection between the control box and the electric water heater control system and the arrangement of a power detection circuit and a power module, communicates with the control box and displays information on the control box; the utility model can realize the power-off after the electric water heater is used, and can still display the water temperature of the inner container; but there is not the potential safety hazard of electric leakage when not having the water heater intake.

In the technical field, the water heater with water inlet and power off does not exist, tap water enters the inner container of the water heater, the electric heating tube cannot be automatically cut off for heating, and after the manual cutting-off and stopping, the electric heating tube cannot be automatically heated after water inlet, so that the problems of potential safety hazard and inconvenient operation exist.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a water heater of cutting off power supply of intaking solves the running water and gets into the inner bag of water heater, and the unable automatic cutout electrothermal tube heating to and after manual cutting off stops, the unable self-heating's of electrothermal tube problem behind the intaking.

The utility model provides a technical scheme does: a water heater with water inlet and power off comprises a core plate and an inner container, wherein a water flow sensor and an electric heating tube are arranged on the inner container, the outer end of the water flow sensor is communicated with the signal input end of the core plate, the water heater also comprises a control plate, a switch control unit, an optical coupling detection unit and a first relay are sequentially communicated and arranged on the control plate, and the signal output end of the core plate is communicated with the signal input end of the switch control unit;

the optical coupling detection unit and the switch control unit are arranged in parallel, the output end of the first relay is communicated with the positive electrode of the electric heating tube, and the high-voltage input end of the first relay is communicated with the positive electrode of an external power supply.

In the water heater with the water inlet and the power off, the cathode end of the electric heating tube is communicated with a second relay, and the high-voltage output end of the second relay is communicated with the cathode of an external power supply.

In the water heater with water inlet and power off functions, the control panel is provided with a first wiring terminal, a second wiring terminal and a power line, one end of the power line is provided with a plug, and the plug is a three-pole plug;

the positive pole and the negative pole of the other end of the power line are respectively communicated with a first wiring terminal and a second wiring terminal, the first wiring terminal is communicated with the high-voltage input end of the first relay, and the second wiring terminal is communicated with the high-voltage output end of the second relay.

In the water heater with the water inlet and the power off functions, the core board is provided with a display screen for displaying and operating, and the core board is provided with a loudspeaker for prompting the power on and off.

In the water heater with the water inlet and the power off, the outer side of the inner container is provided with the shell, an insulating part is arranged between the inner container and the shell, and the insulating part is made of plastic materials.

In the water heater with the water inlet and the power off function, the inner container is provided with the water outlet pipe and the water inlet pipe, the water outlet pipe and the water inlet pipe are respectively arranged by penetrating through one side of the inner container, and the inner side ends of the water outlet pipe and the water inlet pipe are provided with the electricity insulation walls.

After the technical scheme is adopted in the utility model, its beneficial effect who has is:

the water heater is further improved, the scheme is that the water flow sensor, the core plate, the switch control unit and the first relay are arranged to be matched with each other, so that tap water is monitored by the water flow sensor to determine whether the tap water enters the inner container of the water heater or not, a signal is transmitted to the core plate and is sent out after being judged by the main control chip on the core plate, an instruction signal is sent to the switch control unit, the switch control unit controls the first relay to be switched on or switched off, and therefore the power-off and automatic power-on heating of the electric heating tube are controlled, the water inlet of the inner container and the heating of the electric heating tube are avoided being carried out synchronously, when the water heater enters water, the first relay is switched off, the heating is stopped, and when the water flow sensor detects no water flow, the first relay is controlled to be switched on through the signal; when the first relay is closed or opened and fails, the optical coupling detection unit feeds signals back to the core board, and all output interfaces are forcibly cut off by instructions sent by a main control chip on the core board, so that the optical coupling detection device has safety.

Further improvement, this scheme is through setting up the second relay for just, the negative pole of electrothermal tube all are equipped with the switch and accomplish the electrothermal tube and cut off with external high voltage power supply, make the security performance improve greatly, have the security.

In the scheme, the high-voltage input end of the first relay and the high-voltage output end of the second relay are respectively communicated with the first wiring end and the second wiring end by arranging the first wiring end, the second wiring end and the power line, so that wiring and sorting are convenient, and the high-voltage input end of the first relay and the high-voltage output end of the second relay are communicated with an external power supply through the power line, so that the water heater can normally operate; the power plug is a three-pole plug, the ground wire is arranged in the power supply, the leakage of the shell of the water heater can be generated, the safety grounding can be guided, and the safety is realized.

In the scheme, the display screen is arranged, so that the user can be visually informed of the current state of the electric heating tube of the water heater when the electric heating tube is powered on or powered off; the loudspeaker makes the electrothermal tube sound to inform the user of the power-on or power-off condition of the electrothermal tube during each state transition, and has practicability.

In the scheme, the insulating piece is arranged between the inner container and the shell, so that the inner container can be isolated by the insulating piece even if electric leakage occurs, current cannot penetrate the shell, and the electric shock condition is avoided; wherein, the insulating part chooses the plastics material for insulating effect is better, has the security.

Further improvement, this scheme is through setting up the electricity-proof wall for even electrified increase resistance decay electric current that also can pass through the electricity-proof wall of inner bag and water of water heater avoids electrocuteeing and hurts the people, improves safe handling performance.

Drawings

Fig. 1 is a schematic structural diagram of a water heater powered off by water inlet according to embodiment 1 of the present invention;

fig. 2 is a partially enlarged view of embodiment 1 of the present invention.

Reference numerals: 1. a plug; 2. a power line; 3. a second terminal; 4. a first terminal; 5. a first relay; 6. a second relay; 7. an electric heating tube; 8. a control panel; 9. a signal connection line; 10. a core board; 11. a speaker; 12. a main control chip; 13. a display screen; 14. an opto-coupler detection unit; 15. a switch control unit; 16. an inner container; 17. a housing; 18. an electricity-isolating wall; 19. a water flow sensor; 20. insulating member

Detailed Description

The technical solution of the present invention will be further described in detail with reference to the following detailed description, but the present invention is not limited thereto.

Example 1: as shown in fig. 1-2, a water heater with water inlet and power off function comprises a core plate 10 and an inner container 16, wherein a water flow sensor 19 and an electric heating tube 7 are arranged on the inner container 16, the outer end of the water flow sensor 19 is communicated with the signal input end of the core plate 10, the water heater also comprises a control panel 8, a switch control unit 15, an optical coupler detection unit 14 and a first relay 5 are sequentially communicated on the control panel 8, and the signal output end of the core plate 10 is communicated with the signal input end of the switch control unit 15;

the optical coupling detection unit 14 and the switch control unit 15 are arranged in parallel, the output end of the first relay 5 is communicated with the positive electrode of the electric heating tube 7, and the high-voltage input end of the first relay 5 is communicated with the positive electrode of an external power supply.

The principle is that by arranging the water flow sensor 19, the core plate 10, the switch control unit 15 and the first relay 5 to be matched with each other, so that tap water is monitored by the water flow sensor 19 whether to enter the inner container 16 of the water heater or not, a signal is transmitted to the core board 10 and is sent out after being judged by the main control chip 12 on the core board 10, an instruction signal is sent to the switch control unit 15, the switch control unit 15 controls the first relay 5 to be switched on or switched off, thereby controlling the power-off and automatic power-on heating of the electric heating tube 7, avoiding the synchronous water inlet of the inner container 16 and the heating of the electric heating tube 7, when the water is fed into the water heater, the first relay 5 is disconnected to stop heating, the water flow sensor 19 detects no water flow, the first relay 5 is controlled to be closed through a signal, heating is started again, repeated operation of a user is not needed each time, and the embarrassment that no hot water is available due to forgetting to electrify again is avoided; when the first relay 5 is turned on or turned off and fails, the optocoupler detection unit 14 feeds back a signal to the core board 10, and an instruction sent by the main control chip 12 on the core board 10 forcibly cuts off all output interfaces, so that the circuit has safety.

In this embodiment, the negative end of the electrothermal tube 7 is communicated with a second relay 6, and the high-voltage output end of the second relay 6 is communicated with the negative electrode of an external power supply.

Preferably, the second relay 6 is arranged, so that the positive electrode and the negative electrode of the electric heating tube 7 are provided with switches to isolate the electric heating tube 7 from an external high-voltage power supply, the safety performance is greatly improved, and the safety is realized.

In this embodiment, the control board 8 is provided with a first terminal 4, a second terminal 3, and a power cord 2, one end of the power cord 2 is provided with a plug 1, and the plug 1 is a three-pole plug 1;

the positive pole and the negative pole of the other end of the power line 2 are respectively communicated with a first wiring terminal 4 and a second wiring terminal 3, the first wiring terminal 4 is communicated with the high-voltage input end of a first relay 5, and the second wiring terminal 3 is communicated with the high-voltage output end of a second relay 6.

In the operation process, the high-voltage input end of the first relay 5 and the high-voltage output end of the second relay 6 are respectively communicated with the first wiring end 4 and the second wiring end 3 through the arrangement of the first wiring end 4, the second wiring end 3 and the power line 2, so that wiring and arrangement are convenient, and the water heater is communicated with an external power supply through the power line 2 to normally operate; the power plug 1 is a three-pole plug 1, a ground wire is arranged in the power supply, and the water heater shell 17 can be guided to be grounded safely due to electric leakage of the power supply.

In this embodiment, the core board 10 is provided with a display 13 for displaying and operating, and the core board 10 is provided with a speaker 11 for prompting power on and off.

Preferably, the display screen 13 is arranged, so that the user can be informed visually of the current state of the electric heating tube 7 of the water heater when the electric heating tube 7 is powered on or powered off; the loudspeaker 11 is arranged to make the electrothermal tube 7 sound to inform a user of the power-on or power-off condition of the electrothermal tube 7 every time the state of the electrothermal tube 7 is changed, and has practicability.

In this embodiment, a casing 17 is disposed outside the inner container 16, an insulating member 20 is disposed between the inner container 16 and the casing 17, and the insulating member 20 is made of plastic.

As a further improvement of this embodiment, the insulating member 20 is disposed between the inner container 16 and the outer shell 17, so that the inner container 16 is isolated by the insulating member 20 even if the electric leakage occurs, the current cannot penetrate the outer shell 17, and the electric shock is avoided; wherein, insulating part 20 chooses the plastics material for insulating effect is better, has the security.

In this embodiment, the inner container 16 is provided with a water outlet pipe and a water inlet pipe, the water outlet pipe and the water inlet pipe are respectively arranged by penetrating through one side of the inner container 16, and the inner side ends of the water outlet pipe and the water inlet pipe are provided with an electric insulation wall 18.

Preferably, the electric insulation wall 18 is arranged, so that the inner container 16 of the water heater and water can attenuate current through the increased resistance of the electric insulation wall 18 even if the water heater is electrified, electric shock is avoided from injuring people, and the safety use performance is improved.

Wherein, the power cord 2 of tripolar plug 1 is connected to the binding post on the control panel 8 through the inner line of electric water heater, the relay is connected between binding post and electrothermal tube 7, be used for controlling the power break-make of electrothermal tube 7, main control chip 12 is located the core 10, be equipped with the display screen 13 that is used for showing and operates on the core 10, the core 10 links to each other with rivers sensor 19, rivers sensor 19 is hall element, be connected to electronic switch control unit 15 through signal connection 9, rivers sensor 19 links to each other with core 10 signal, opto-coupler detecting element 14 arranges between electronic switch control unit 15 and relay, whether the actuation or the disconnection that are used for detecting the relay are normal.

In actual work, when the water flow sensor 19 senses that water enters the inner container 16, a signal is transmitted to the main control chip 12 and then is transmitted to the electronic switch control unit 15 through the signal connecting line 9 to drive the relay to be disconnected, and the optical coupler detection unit 14 feeds back whether the action of the relay is normal or not; if the optical coupling detection unit 14 detects that the relay is closed or disconnected abnormally, the main control chip 12 sends signals for disconnecting all the electric relays to the electronic switch control unit 15, and corresponding alarm prompts are given on an operation and display panel, so that the inner container 16 of the electric water heater is completely disconnected from the power supply, and the power supply of the electric heating tube 7 is automatically cut off when water enters. When the water flow sensor 19 senses that the inner container 16 stops water inflow, a signal is transmitted to the main control chip 12, after repeated detection for a period of time is confirmed, the signal is sent to the electronic switch control unit 15 through the signal connecting wire 99 to drive the relay to suck, so that the product is started to be heated again without manual operation, the purpose of convenience in use is achieved, the product is powered on and off at each time, the signal is sent to the loudspeaker 11 through the chip, the loudspeaker 11 is powered off for bathing according to signal voice prompt, and the electric water heater is powered on and heated, and the intellectualization of the electric water heater is reflected.

The above embodiments are preferred embodiments of the present invention, but the embodiments of the present invention are not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be equivalent replacement modes, and all are included in the scope of the present invention.

Claims

1. A water heater of cutting off power supply of intaking, including the core, the inner bag, there are waterflow sensor, electrothermal tube on the said inner bag, the outer end of the said waterflow sensor communicates with signal input end of the core, characterized by that, also include the control panel, communicate sequentially and have on the said control panel on the switch control unit, optical coupling detecting element, first relay, the signal output end of the said core communicates with signal input end of the switch control unit;

2. The water heater with water inlet and power off according to claim 1, wherein a second relay is arranged at the negative end of the electric heating tube in a communication manner, and the high-voltage output end of the second relay is communicated with the negative electrode of an external power supply.

3. The water heater of claim 1 or 2, wherein the control board is provided with a first terminal, a second terminal and a power line, one end of the power line is provided with a plug, and the plug is a three-pole plug;

4. The water heater of claim 1, wherein the core board is provided with a display screen for displaying and operating, and the core board is provided with a speaker for prompting power on and off.

5. The water heater of claim 1, wherein a housing is disposed outside the inner container, and an insulating member is disposed between the inner container and the housing, and the insulating member is made of plastic.

6. The water heater with the water inlet and the power off according to claim 1, wherein the inner container is provided with a water outlet pipe and a water inlet pipe, the water outlet pipe and the water inlet pipe are respectively arranged by penetrating through one side of the inner container, and the inner side ends of the water outlet pipe and the water inlet pipe are provided with an electric insulation wall.