RU177023U1 - Electric storage heater - Google Patents

Abstract

The utility model relates to electrical engineering, namely to accumulative storage water heaters for domestic premises, residential premises, offices, country houses, cabins. The storage-type electric heater consists of a housing 1, in which a thermally insulated water tank 2 is mounted, in which a heating element (TEN) 3 and a magnesium anode 4 are placed, and a cold water supply fitting and a hot water intake fitting 6 are connected. The heating element 3 is electrically connected to the unit a control comprising an electronic power board 14, an electronic control board 15 with a microcontroller, and a safety thermostat 9. On the outside of the housing 1, controls 12 are arranged on the control panel 17, n wherein a groove 18. The groove 18 is fixed plug 19. In an electronic control board 15 is USB-connector, terminals of which face the groove 18 and made of steel. A Wi-Fi module 20 is connected to the USB connector. The technical result is the provision of the possibility of correct remote control by improving the quality of reception, processing and execution of a command signal. 6 C.p. f-ls, 5 ill.

Description

The inventive utility model relates to electrical engineering, namely to storage, storage water heaters for domestic premises, such as residential premises, offices, country houses, cabins of construction organizations and other objects.

A known hot water reservoir containing a reservoir, in the lower part of which cold water is supplied, and heated water is discharged from the upper part. In the lower part of the tank there is a heat source (TEN), which is covered by a cap with an inlet located below at the bottom to enter cold water into the cap. At the top of the tank is an outlet to which the pipe is connected. The outlet end of the pipe is located above or at the height of the boundary layer created in the tank between the upper volume of hot water and the lower volume of cold water, and moves with it. In this case, cold water heated inside the cap rises through the pipe through the surrounding cold water and enters the reservoir in the region of the boundary layer or slightly higher (European patent EP No. 1171742, 2002).

Also known is a boiler containing a housing, which is made of a complex polymer composition and consists of two layers: internal and external. The inner layer is made of thermoplastic elastomer and is designed for direct contact with water, and the outer layer of the boiler body is formed by many threads or strips of synthetic material coated with resin. The outer layer is sintered, resulting in the formation of a mesh structure that is resistant to relatively high pressures. In the lower part of the working tank are installed: a heating element (TEN), a thermostat and a cold water supply pipe. Hot water is released from the tank by a hot water outlet (German Patent No. 60105123T, 2005 and its analogue patent: EP No. 1254343).

A water heater is known that contains a thermally insulated sealed working tank, a cold water supply pipe, a hot water discharge pipe and a heating element located inside the working tank, a silver coating is applied to the outer surface of the heating device (RU patent for utility model No. 88779, 2009).

Common signs of all of the above devices is the operation of the water heater under the influence of electric current in the accumulative accumulation mode, the presence of one water tank located in the housing, which is equipped with end caps, the water tank is equipped with fittings for hot water intake and cold water supply, the inlet and outlet of the fittings are placed in one plane on the end cap, the presence of a heating element, controls, the heating element is electrically connected through the controls to the mains.

The disadvantages of all of the above devices should include limited operational capabilities, since each of the known devices can be installed in only one position, namely only vertically or only horizontally. In addition, none of the known devices has the technical ability to control by using remote access, and there is no possibility of the correct integration of the water heater in the "smart home" system.

Closest to the proposed one is an accumulative storage water heater containing a water tank, equipped with a hot water intake fitting and a cold water supply fitting, a heating element with a magnesium anode, configured to be connected to an electrical outlet, characterized in that the water tank is housed in a housing, the latter is equipped with end caps, the end part of the cold water supply fitting has a distributor configured to change the direction of the incoming cold water flow, the intake fitting hot water is made with a tube placed in the cavity of the tank for water inlet and outlet nozzles for supplying cold water are arranged in one plane and are separated from each other to the end edges of the housing cover. The water heater comprises a control unit configured to be connected to the mains, and a control panel. The control unit is represented by an electronic power board connected to each other, an electronic control board, a safety thermostat and a power cord with a residual current device. On the electronic control board, push-button and adjustment switches are made to control the operating modes of the water heater and adjust the temperature of water heating. The electronic control board has the ability to connect a Wi-Fi switch and control the water heater remotely through a WEB page or program on a mobile phone. The electronic power board converts the low-voltage direct current that is necessary for the electronic power board to work from the mains voltage. A circuit with a high current load is mounted on the electronic power board, using a relay high current and voltage are supplied to the heating element. On the outside of the case there is a control panel on which the controls of all the above control devices are displayed (patent for utility model RU 169031, 2017).

The well-known water heater has increased operational capabilities, expressed in the possibility of use, both in flow and in storage modes. Moreover, the known water heater has the technical ability of remote access to control the operating modes of the water heater. At the same time, placing the Wi-Fi signal receiver on the electronic control board, which is shielded by a metal case, leads to a decrease in the level of signals, and, consequently, to ineffective control, namely, errors in the reception, processing, and execution of control signals.

The technical problem is a narrow range of accumulative-type electric water heaters with advanced functionality that can be integrated into smart home systems.

EFFECT: expansion of the assortment of electric storage water heaters with one water tank, with the possibility of its correct remote control by improving the quality of reception, processing and execution of a command signal.

The technical result is achieved by the fact that the inventive storage type electric water heater contains a water tank located in a housing with end caps, a water tank is equipped with fittings for hot water intake and cold water supply, the inlet and outlet of the fittings are placed in one plane, the heating element is placed in the tank for water, and electrically connected to the control unit, which is connected to the controls located on the outside of the housing, and is configured to be connected to the mains, the control unit It contains an electronic power board and an electronic control board that are electrically connected to each other, while on the electronic control board there is a connector configured to connect a modular control interface device, the terminals of the connector are made of electrically conductive material and face a control panel in which there is a groove, made in such a way as to enable mechanical connection of the connector with the modular device of the control interface, the groove is equipped with a plug made to actuate the groove in the state of "closed-open".

The control unit is located inside the housing and is configured to be connected to the mains, represented by an electronic power board and an electronic control board connected to each other. Additionally, the control unit may comprise a safety thermostat. The control unit is connected to the mains via a power cord, which can be equipped with a residual current device.

In the inventive electric heater, the electronic control board is equipped with a connector, the terminals of which are directed towards the control panel to connect a modular control interface device having response terminals. A USB connector is preferably used as a connector, and a Wi-Fi module is preferably used as a modular control interface device for connecting a Wi-Fi switch and controlling the inventive water heater remotely via a WEB page or a computer program installed on a mobile phone. The findings of the connector are made of an electrically conductive material, preferably steel being used.

The electronic control board is equipped with a microcontroller and has electrical contact with the push-button and control switches located on the control panel and performs the function of controlling the operating modes of the water heater and adjusting the temperature of the water heating.

The electronic power board of the control unit converts the ac mains voltage to a constant low voltage voltage, which is necessary for the operation of the electronic control board. A circuit with a high current load is mounted on the electronic power supply board of the control unit, with the help of a relay high current and voltage are supplied to the heating element located in one of the water tanks.

The electronic control board is powered by an electronic power board with which there is electrical communication. The electronic power board is equipped with electrical contacts to enable electrical connection.

An electrical connection is implemented by a power circuit, carried out by conductive wires, electrical contacts, conductive paths on electronic circuit boards and other known elements of electrical circuits.

The plug is mechanically engaged on the control panel, for example, by means of a tight fit in the groove. The plug is preferably made reclining and interacts in the assembled state with the control panel due to tight fit, bringing the groove to the open or closed state. When the Wi-Fi module is disconnected, the plug closes the USB connector, which is led out in the direction of the plug, eliminating the possibility of foreign objects and splashing water on the electronic control board. To connect the Wi-Fi module, the cover is tilted or removed, allowing access to the USB connector.

As the heating element, a heating element with a magnesium anode (a "dry" heater and a magnesium anode) is preferably used. The water tank is thermally insulated, rigidly fixed inside the cavity of the metal case. The cold water supply nozzle is preferably presented in the form of a stainless pipe with a thread at the 1/2 ”end, a metal or plastic cap is installed at the return end of the nozzle directly at the water inlet to the tank, which prevents the water entering the tank from completely mixing with the water heated in the tank, and cold water displaces heated water that flows out of the tank through the hot water inlet. The hot water inlet is also installed in the water tank. The inlet of the cold water inlet and the outlet of the hot water inlet are located in one plane along the edges of the end cover of the water heater casing.On the outside of the casing there are control elements, mainly arranged on the control panel, located on the front of the casing.

The inventive storage electric heater differs from the known in that:

- a connector is arranged on the electronic control board configured to connect a modular control interface device;

- the findings of the connector are made of electrically conductive material;

- the connector pins are facing the control panel;

- a groove is made on the control panel;

- the groove is made in such a way as to allow mechanical connection of the connector with the modular device of the control interface;

- the groove is equipped with a plug;

- the plug is made with the possibility of its removal.

Comparison of the claimed device with the known allows us to conclude that the criterion of "novelty".

The inventive device can be made of known materials using known technologies and known structural elements, which allows us to conclude that the criterion of "industrial applicability".

The inventive device is illustrated by the following drawings and drawings.

FIG. 1 - schematically shows the design of an electric heater with a control panel and with a plug-in Wi-Fi module;

FIG. 2 - the same in the context;

FIG. 3 - shows the principle of interconnecting the remote control unit of the electric heater;

FIG. 4 - shows the appearance of the electric heater assembly with the plug removed and the installed Wi-Fi module;

FIG. 5 - shows the appearance of the electric heater assembly with a plug without a Wi-Fi module.

The inventive electric heater consists of a housing 1 made of stainless steel, in the cavity of which a heat-insulated water tank 2 made of stainless steel is fixed. A heating element (TEN) 3 and a magnesium anode 4 are placed in the cavity of the water tank 2 and a cold water supply nozzle 5 and a hot water intake nozzle 6 are connected. An end cap 8 and a working end cap 7. are placed from the ends of the housing 1. The inlet of the cold water supply nozzle 5 and the outlet of the hot water intake fitting 6 are located at the edges of the end cover 7 of the housing 1. The heating element 3 is electrically connected to a control unit that contains an electronic power board 14, an electronic control board 15 with a microcontroller (not shown) and a protective thermo 9. tat Elektropodvod carried by the power cord 11 to the block 13 and the breaker plug 16 for connection to the mains. On the outside of the housing 1 there are controls 12 arranged on the control panel 17, on which the groove 18 is made. A plug 19 is fixed in the groove 18. A USB connector is installed on the electronic control board 15, the terminals 10 of which are turned to the groove 18 and are made of steel . A Wi-Fi module 20 is connected to the USB port.

The inventive device operates as follows.

The assembled electric heater is installed in a convenient place and plugged into the mains via a power cord 11 with a residual current circuit breaker 13 and a plug 16, which is connected to an electrical outlet. The water heater is connected to the water supply through the cold water supply nozzle 5, according to the connection diagram specified in the instruction manual. The heating element (TEN) 3 heats the water in the water tank 2 to the temperature set on the control panel 17 and turns off. Heated water through the nozzle of the intake of hot water 6 is supplied to the consumer. As the water cools, the water heater automatically turns on the heating element (TEN) 3 and maintains the water temperature at a predetermined value (the value is set from 35 ° C to 75 ° C).

The water heater is controlled by setting the required modes using the controls arranged on the control panel 17, the signals from which are transmitted to the electronic control board 15 with a microcontroller (not shown) of the water heater control unit. In the case of a remote location of the consumer, the latter controls from a peripheral device using a home Wi-Fi router, from where the control signal is sent to the Wi-Fi module 20. Control from a smartphone or tablet computer running IoS or Android operating systems is carried out using GUI applications. The Wi-Fi module 20 of the water heater establishes a connection with the server using the Internet on which the server part of the application is installed. The mobile application also establishes a connection to the server using the Internet. The server part of the application synchronizes a specific water heater with a specific mobile application, based on user accounts.

The electronic control board 15 with a USB connector, into which the Wi-Fi module 20 is mechanically installed, interacts electrically with the electronic control board 15 of the water heater control unit. The Wi-Fi signal of module 20 is transmitted to the microcontroller of the electronic control board 15. The priority of the signals from the control panel 17 and from the Wi-Fi module 20 is distributed as follows - when a remote and manual signal are sent, the execution command is issued in relation to the signal received the last one. Through the serial port, all parameters of the water heater are controlled, readings of sensors located on the electronic control board 15 and error codes are read. The data is sent from the microcontroller of the electronic control board 15 to the server and received from the server via Wi-Fi module 20. At the signal from the server, from the electronic control board 15 of the electric heater control unit, new commands are issued to set the remotely set values of water temperature, power, timer.

Using the claimed utility model allows you to expand the range of electric heaters with one tank for water, with advanced functionality due to the possibility of correct remote control of its operation. The correctness of the control signals is ensured by maintaining the signal level, reducing errors in the reception, processing and execution of control signals due to direct electrical contact of the connector of the electronic control board with a modular control interface device. The presence of the plug prevents the ingress of water, dust and other foreign substances and objects, ensuring the preservation and achievement of the specified technical result. In addition, the implementation of the connector for connecting a modular device of the control interface directly in the control unit provides not only the reliability of the electrical connection of all functional elements to each other and the improvement of the quality of execution of command signals, but also the ease of assembly of the water heater, as compared to connectors that can be executed on other structural elements of a water heater.

Claims (7)

1. The storage-type electric heater contains a water tank located in a housing with end caps, a water tank equipped with fittings for hot water intake and cold water supply, the inlet and outlet of the fittings are placed in one plane, the heating element is placed in the water tank and is electrically connected with a control unit, which is connected to control elements located on the outside of the housing, and is configured to be connected to the mains, the control unit comprises electrically connected to each other an electronic power board and an electronic control board, characterized in that the electronic control board has a connector configured to connect a modular control interface device, the terminals of the connector are made of electrically conductive material and face the control panel, in which there is a groove made so that provide the possibility of mechanical connection of the connector with the modular device of the control interface, the groove is equipped with a plug made with the possibility of bringing the groove in a state e "open-closed." 2. The storage type electric water heater according to claim 1, characterized in that steel is used as the electrically conductive material. 3. The electric storage heater according to claim 1, characterized in that the plug is fixed in the groove of the control panel by means of a tight fit. 4. The storage heater according to claim 1, characterized in that the plug is removable. 5. The storage heater according to claim 4, characterized in that the plug is made reclining. 6. The storage heater according to claim 1, characterized in that the connector on the electronic control board is represented by a USB connector. 7. The storage-type electric heater according to claim 1, characterized in that the modular control interface device is represented by a Wi-Fi module having response contacts for connecting to the connector pins.

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