WO2011122981A1

WO2011122981A1 - Automation module

Info

Publication number: WO2011122981A1
Application number: PCT/RU2011/000017
Authority: WO
Inventors: Андрей Борисович БОРТКЕВИЧ
Original assignee: Bortkyevich Andryej Borisovich
Priority date: 2010-03-31
Filing date: 2011-01-18
Publication date: 2011-10-06

Abstract

This utility model is intended for use in automation, preferably in automatic ventilation and air-conditioning control systems. The technical result consists in reducing the weight and dimensional characteristics, and the possibility of quickly changing the unit for protecting the electrical circuits from overloads. The claimed technical result as a whole is achieved by virtue of replacing the wired installation of the board-type module with a printed option. The automation module consists of a printed circuit board or a set of printed circuit boards, with elements for suspended and/or surface mounting, in which the power switching unit is a contactor which interacts with a relay, and a link to external devices and a control interface unit is provided via a terminal block of a digital interface, wherein a multi-stranded cable is passed from the contactor to the terminal block for coupling the power load of the electrical power supply.

Description

AUTOMATIC MODULE

DESCRIPTION

The utility model is intended for use as automation,

mainly in automatic ventilation control systems and

air conditioning.

A well-known energy-saving ventilation and air conditioning system, including a driven supply fan, air conditioning, supply air temperature control sensor, indoor air control sensor (see the description of the invention to the patent of the Russian Federation RU N22244882 IPC F 24 F 5/00, F 24 F 11 / 00, 10/06/2003).

The known system reduces energy costs for heating the supply air, and also allows you to use the natural cold of the outdoor air to remove excess heat in the serviced premises during the transition periods of the year. However, it is cumbersome and may not be applicable for mobile base stations having, as a rule, insignificant dimensions.

A known system of automatic control and regulation for ventilation installations, including a driven supply fan, a control sensor

supply air temperature, indoor air control sensor and magnetic starter (contactor), (see description of the invention to the patent of the Russian Federation RU N22098722 IPC F 24 F 11/08 of 07/20/94)

A disadvantage of the known system is that it maintains the required air temperature only due to ventilation, namely, air injection outside the room, for example, in the winter, and does not allow cooling the air in the room in the summer.

In general, all known automatic ventilation systems contain a set of units: Controllers, speed controllers, mixing units, control modules, electric actuators for air valves (see

http://www.ventilation.vinsit.ru/automatics/).

Each of the blocks, for example, controllers, contains many other blocks: controllers for heating systems, controllers with analog output, controllers with three-position output, freely configurable controllers.

And the automation system is composed of such blocks and its control system is placed in the automation cabinet (see http://www.rfclimat.ru/htm/vent auto.htm).

Automation provides year-round operation of the ventilation system while maintaining the set temperature in winter operation. Shields perform the following functions:

- Management of inflow and exhaust fans;

- Maintenance of the set air temperature;

- Switching modes "Winter / Summer";

- Indication of the operation of fans inlet and exhaust;

- A multi-level anti-freeze protection system for the air heater, including: o controlling the valve actuator with a return spring to close the air intake valve when the fan is turned off or when the supply voltage is lost;

o control of the circulation pump at the strapping unit, providing a constant flow of water through the air heater;

o constant monitoring of the return water temperature in the heater in all operating modes, including in the standby mode;

o constant monitoring of air temperature at the outlet of the air heater.

- Protection against overheating of fans;

- Protection against phase imbalance or loss of one phase;

- Protection during short circuit or overload;

- Indication and shutdown of system at pollution of the filter (option);

This shield is selected for the prototype. The disadvantage of such a shield (see

http://www.rfclimat.ru/imK/equip/auto ll.jpg) is the complexity of its installation and connection, the presence of many wires and contacts. Those. all connections between the units are cabled. Each controller must be connected manually by contact with another controller or sensor, or displayed on

power supply. Also, the shield turns out to be rather bulky and heavy, and due to the presence of many wires and expensive. The purpose of the utility model is to eliminate the disadvantages of the prototype.

EFFECT: reduced weight and size characteristics, the ability to quickly replace the block of protection of electrical circuits against overloads.

The claimed technical result as a whole is carried out by replacing the cable installation of the shield module with a printed one.

An automation module comprising installed inside a switchboard: a power supply unit that provides the necessary characteristics of power circuits for the internal needs of the module and / or power circuits of external consumers; a control controller unit, the function of which is to program the signal of external and / or internal sensors and the control interface unit and issuing control signals to the display unit, the power load switching unit and / or external devices; power load switching unit, the function of which is to turn on / off the power load circuits of external consumers and / or adjust power parameters for power load circuits of external consumers; control interface unit

transmitting control signals from the operator (user) and / or external devices to the internal units of the module; indication unit, the function of which is sound and / or visual indication of the status of the module operating modes; block of protection of electrical circuits against overloads, the function of which is to monitor the state of external and / or internal consumers of electricity, issue signals about the output of parameters beyond acceptable limits and / or shutdown

consumers in hazardous conditions, characterized in that it consists of a printed circuit board or a set of printed circuit boards, with hinged elements and / or

surface mounting, in which the power load switching unit is a contactor that interacts with the relay, and communication with external devices and the control interface unit is via a digital interface terminal block, and a multicore cable is passed from the contactor to the power load connection terminal block.

In addition, the power supply unit is placed on one board together with the units: protection of electrical circuits from overloads, a switching unit power load, by the unit for protecting electrical circuits from overloads, and the board has a slot for connecting via a bus (loop) to a board containing a control controller unit with a microprocessor. In addition, the microprocessor can be made removable. In addition, an SPI interface with the function of external communication with a computer can be installed on a board containing a control controller unit with a microprocessor.

Brief Description of the Drawings

In FIG. 1 shows a constructive device of a utility model, where 1 is a power supply unit, 2 is a control controller block in the form of a board with microchips, 3 is a power supply terminal block, 4 is a terminal block for connecting an external

equipment, 5 - display unit in the form of a board, b - unit for protecting electrical circuits from overloads, 7 - contactor, 8 - electromagnetic relay, 9 - slot for connecting a communication loop between boards, 10 - SPI interface, 11 - cable, 12 - removable

microprocessor, 13 - light indicators, 14 - display, 15 - control buttons, 16 - hole for external access to the circuit breakers of unit 6, 17 - cable with SPI connector for connection to the SPI interface, 18 - adapter, 19 - computer port (type USB, COM, LPT), 20 - board for placement of power load switching blocks, power supply and overload protection circuit, 21 - panel board (box), 22 - multicore cable.

Utility Model Implementation

Automation module, consisting of a printed circuit board or a set of printed circuit boards, with elements of hinged and / or surface mounting and containing structural blocks that perform the following functions.

Inside the standard box of the electrical panel (see Fig. 1) (21), there are boards: (20), (2), (5).

The power supply unit (1) provides the necessary characteristics of power supply circuits for the internal needs of the module and / or power supply circuits of external consumers. Block (1) is placed on the board (20) together with blocks (3, 4, 6, 7, 8, 9). A multicore cable (22) is passed from the contactor (7) to the terminal block (3), the presence of which allows eliminating the need to manually connect each specialist cable wire to the desired terminal.

The boards (20) and (2) are interconnected by a loop (11), which is inserted into the connectors of the slots (9). Power is supplied to the switchboard via the terminal block (3), and communication with external equipment requiring control and diagnostics (by connecting to sensors), with the terminal block (4), for example, via the RS-485 digital interface. The block of protection of electrical circuits against overloads (b) consists of circuit breakers selected for the required power load, the power of which is supplied from the terminal block (3) through the contactor (7). From the unit (6), power is supplied to the power supply unit (1).

Signals from and to external equipment go through the terminal strip (4) through

electromagnetic relays (8), and then through the slot (9) for connecting the communication loop between the boards (20) and (2), and the loop (11) to the board (2) - the control controller block. Block (2) processes the signals of external and / or internal sensors and the control interface unit according to the program. It provides control signals to the display unit (5), the switching unit (20) of the power load and / or external devices.

The board (2) is a control controller unit that processes the signals of external and / or internal sensors and the interface unit according to the program

control, provides control signals to the display unit, power load switching unit and / or external devices.

A microcircuit is placed on the board (2), leading the contacts of all slots and connectors to the microprocessor (12), which is preferably removable so that it can be reprogrammed to a given power load. On the board (2) also

slots (9) are placed (at least one) for communication with the board (20) and for connecting additional boards, type (2) with a control microprocessor.

From the microprocessor (12), the contacts on the board (2) can be output to the SPI interface (10), which serves to control the entire system through a computer. Communication with the computer is through the SPI interface (10), into the connector of which a cable (17) is connected, leading through a special adapter (18) to some computer port (such as USB, COM, LPT) (19).

The board (2) is attached to the rear side of the board (5) of the display unit, which is mounted on top of the board (20) so that the hole (16) in the board (5) lies on the switches of the unit (6) and they become externally accessible. On the display board (5) there are light indicators (13), a display (14), control buttons (15), which are contact-connected to the board (2).

The power load switching unit is a contactor (7),

interacting with relay (8). This unit implements

switching on / off the power load circuits of external consumers and / or adjusting the parameters of electric power for power load circuits of external consumers.

The control interface block is a terminal block (4) through which control signals from the operator (user) and / or external devices are transmitted to the internal blocks of the module.

The display unit (5) provides audible and / or visual indication of the status of the operating modes of the module.

The block of protection of electrical circuits against overloads (6) monitors the state of external and / or internal consumers of electricity, gives signals that parameters are outside the permissible limits and / or disconnects consumers in dangerous conditions.

The reduction in weight and size characteristics is ensured by the transfer from cable to print.

The ability to quickly replace the unit for protecting electrical circuits from overloads is realized by simply replacing one machine with another, because

each machine is connected only by setting contacts on the input and output. Replace the controllers inherent in a given load of the machine (as in the prototype) is not required.

Claims

FORMULA

1. An automation module comprising installed inside a switchboard: a power supply unit that provides the necessary characteristics of power circuits for the internal needs of the module and power circuits of external consumers; control controller unit, the function of which is to process the program of signals of external and internal sensors and the interface unit

control and issuing control signals to the display unit, power load switching unit and external devices; power load switching unit, the function of which is to turn on / off external power load circuits

consumers and adjustment of electric power parameters for power load circuits of external consumers; a control interface unit transmitting control signals from the operator (user) and / or external devices to the internal units of the module; an indication unit, the function of which is an audible and visual indication of the status of the operating modes of the module; unit for protecting electrical circuits from overloads, the function of which is to monitor the state of external and internal consumers of electricity, issue signals about the parameters to exceed acceptable limits and turn off consumers in hazardous conditions, characterized in that it consists of a printed circuit board or a set of printed circuit boards, with surface and surface mounting elements, in which the power load switching unit is a contactor interacting together with the relay, and communication with external devices is carried out via the terminal strip of the analog and / or digital interface.

2. The automation module according to claim 1, characterized in that the power supply unit is arranged on one board together with the following units: protection of electrical circuits against overloads, power switching unit, protection unit

electrical circuits from overloads, and the board has a slot for connecting via a bus (cable) to a board containing a control controller unit with a microprocessor.

3. The automation module according to claim 2, characterized in that the microprocessor is removable. The automation module according to claim 2 or claim 3, characterized in that on the board containing the control controller unit with a microprocessor, an SPI interface with the function of external communication with the computer can be installed.