RU2609773C1 - All-weather thermal cabinet - Google Patents

Abstract

FIELD: control systems.

SUBSTANCE: invention relates to non-electric values control or adjustment systems, in particular, to climatic protection devices of equipment placed in them, for example, television, security, instrumentation. All-weather thermo cabinet (TC) is equipped from inside with insulant with reflecting layer, includes mounting panel, automatic circuit breaker, at least, one heater and alarm system. Additionally contains ventilation system, consisting of fan with filter and outlet filter, climate control unit with heaters switching on and off electronic control circuit, fan and equipment cold start-up, wherein alarm system is made in form of tamper contact and serves for warning on unauthorized access, cabinet also has DIN rail with terminals, end retainers and insulators, flange-panel with cable glands. TC additionally also contains emergency alarm, electronic testing system. Insulation reflecting layer is made of dielectric polymer, and heat insulation material self-adhesive side is made netted, which prevents insulation “wrinkling” or unglue at high temperature drops inside and outside TC. Heater has built-in bimetallic switch, limiting heater radiator surface temperature to +90 °C. TC comprises external electronic temperature sensor measuring temperature inside TC. TC also has apron protecting against precipitation (rain, snow), and made with possibility of attachment both to wall, and to round or square supports.

EFFECT: creation of efficient and reliable climatic protection device for equipment placed into it.

10 cl, 1 dwg, 3 tbl

Description

The claimed solution is an all-weather thermal cabinet (TS) - relates to control systems or regulation of non-electrical quantities, as well as to a special field of electrical engineering, not elsewhere classified, in particular to devices for climate protection of the equipment placed in them, for example, television, security, control and measuring.

Known patents of the Russian Federation No. 2281445, 2459162 for a heating cabinet, which relates to devices for heat treatment of parts.

However, these devices are bulky and are used in the mass production of parts.

Known patents of the Russian Federation No. 35419, 55947 for a heating cabinet, which is structurally made of walls, doors and a working chamber, interconnected by lock joints.

However, these devices are not effective enough for climate protection of the equipment placed in them.

The closest analogue was found for the purpose and name of the proposed solution - RF patent No. 87546, filed 04.06.2009, IPC G05D 23/30, H05K 5/06, which has similar features: an all-weather thermocase equipped with a heater with a reflective layer, including a mounting panel , circuit breaker, fan, at least one heater and alarm system.

However, the prototype has a limitation in efficiency and reliability as a device for climate protection of the equipment placed in it. So, for example, the degree of protection governing the penetration of dust and water is IP54 (protection against dust and water splashes). As you know, the efficiency and reliability in the operation of devices of this class is crucial in the industry.

The claimed solution is devoid of this limitation and differs from the prototype by the following features.

It contains a climate control unit, made in the form of electronic circuits, with the functions of turning on and off the heater, equipment and fan (in the case of its use), and the alarm system is made in the form of tamper contact and serves to alert about unauthorized access, also has a DIN rail with terminals, end clamps and insulators, flange panel with cable entries.

The heating cabinet is characterized by the fact that the electronic control circuit of the heaters, fan and cold start of the equipment installed in the heating cabinet is applied.

The heating cabinet is characterized by the fact that there is a function for cold starting the equipment.

The heating cabinet is characterized by the fact that there is thermal protection of the equipment.

The heating cabinet is characterized by the fact that there is an alarm.

The heating cabinet is characterized by the fact that there is an electronic testing system (checking the functioning of the temperature control system inside the heating cabinet).

The heating cabinet is characterized by the fact that the reflective layer of the insulation is made of non-conductive polymer, which avoids short circuits of electrical circuits when installing the equipment in the cabinet or when wires and cables are broken in an emergency, and the self-adhesive side of the insulation is made mesh, which prevents the insulation from “wrinkling” or peel off at large temperature differences inside and outside the cabinet.

The heating cabinet is characterized by the fact that the heater has a built-in bimetallic switch that limits the surface temperature of the heater radiator to + 90 ° C, which avoids the failure of the heater in an emergency (emergency) situation.

The temperature cabinet is characterized by the fact that an external electronic temperature sensor is installed inside, which measures the temperature inside the temperature cabinet.

The heating cabinet is characterized in that it has a visor that protects the heating cabinet from precipitation (rain, snow).

The heating cabinet is characterized in that it is made with the possibility of fastening both to the wall and to round or square supports.

The oven is also characterized by the fact that the degree of protection governing the penetration of dust and water is IP55 (protection against dust and short-term water jets) in the version with a fan and IP66 (full protection against dust and dynamic effects of water flows (wet wave) in the version without a fan.

As a result of the patent search, it was found that the claimed solution has novelty, and the following description with the drawing leads to the conclusion that the solution has industrial applicability. There is an inventive step, because a step has been taken towards the use of a new elemental base.

In FIG. 1 presents a General view of the inventive all-weather heating cabinet.

The heating cabinet is intended for installation in it of a television, security, control and measuring or other electronic equipment and maintaining a given temperature regime during operation of this equipment.

The heating cabinet is equipped with:

- a climate control unit designed to control the cold start of the equipment installed in the heating cabinet, heaters (up to two) and a fan at specified temperature values inside the heating cabinet;

- heater of a heating cabinet;

- a fan with a filter (fan cooling system);

- exhaust filter;

- circuit breaker;

- tamper contact for signaling of unauthorized access.

The essence of the technical solution (see Fig. 1).

An all-weather heating cabinet provided with a heater with a reflective layer 1, fasteners 2 and a visor 3, including a mounting plate 4, an automatic switch 5, at least one heater 6, is characterized in that it contains a climate control unit 7 made in the form of electronic circuits , with the functions of turning on and off the heater, equipment and fan, and the alarm system is made in the form of tamper contact 8 and serves to alert about unauthorized access, also has a DIN rail 9 with terminals 10, end fixation proof operation and insulators gland plate with cable inlets 11, 12 and grounding pin 13 remote sensor.

The heating cabinet is also characterized in that it has a fan system consisting of a fan with a filter 14 and an exhaust filter 15.

The claimed oven operates as follows.

Temperature control inside the cabinet is carried out using an external temperature sensor. The temperature values inside the cabinet are set by switches. As heaters, heaters of the OTSH series are used, manufactured by the Tachyon company - the applicant.

The climate control unit performs the following functions:

- cold start equipment;

- inclusion of heaters;

- turning on the fan;

- thermal protection;

- alarm;

- testing.

Function of cold start of equipment (turning on / off the supply voltage of equipment):

It is designed to prevent the equipment from operating at temperatures below the set temperature in the cabinet. The power-off temperature for the equipment is set with the “Off. equipment ”installed on the front panel of the climate control unit.

Heater enable function:

heating on temperature is set by the switch “On. heating ”installed on the front panel of the climate control unit

To set the temperature parameters, it is necessary to set the switches to the desired position, referring to tables 1 and 2.

Fan On Function:

fan on temperature is set by the switch “On. fan ”mounted on the front panel of the climate control unit

To set the temperature, it is necessary to set the switch to the desired position, referring to table 3.

Thermal Protection Function:

the climate control unit provides a thermal protection system designed for emergency shutdown of heating in case the temperature in the heating cabinet reaches above + 30 ° C due to climatic factors or failure of the heating system. The system turns off the power to the heater and turns it on after lowering the temperature inside the oven to + 20 ° C.

Alarm Function:

when the temperature in the temperature cabinet reaches + 70 ° C (due to climatic factors - in the summer period) from the contacts of the climate control unit “Overheating” (normally closed relay contacts), an alarm about an alarmingly high temperature is issued to the external alarm circuit.

Test function:

To check the operability of the climate control system, a testing program is provided which is activated by the “Test” button installed on the front panel of the climate control unit. When this button is pressed, the heating system, the power system of the equipment installed in the heating cabinet and the ventilation system are monitored. In this case, the monitoring results are displayed using LEDs located on the climate control unit.

Connection of a heating cabinet:

The supply voltage of the heating cabinet is supplied to the contacts of the power supply circuit breaker. The equipment is connected to the terminals.

The heating cabinet is equipped with a tamper contact, which allows you to connect the heating cabinet to an external alarm device

The cabinet must be earthed using the ground bolt.

The electrical circuit diagram of the thermal cabinet contains a circuit breaker, terminals, a climate control unit, a heater, and a remote temperature sensor.

Main technical characteristics of the heating cabinet:

1. Power supply of the heating cabinet: supply voltage 220 V AC ± 10%, 50 Hz maximum load current 6 A 2. Heating supply voltage 220 V AC ± 10%, 50 Hz 3. Fan supply voltage 220 V AC ± 10%, 50 Hz 4. Range of regulation of temperature of heating in a heating cabinet  -20 ° С ÷ + 15 ° С 5. Range of regulation of temperature of ventilation of the heating cabinet  + 20 ° С ÷ + 55 ° С 6. The temperature of the thermal protection of the heating + 30 ° С ± 3 ° С 7. Alarm temperature + 70 ° С ± 3 ° С 8. The range of temperature control cold start equipment  -30 ° С ÷ + 5 ° С 9. Range of working ambient temperatures - 60 ° С ± + 50 ° С

Claims (10)

1. An all-weather heating cabinet (TS) equipped with a heater with a reflective layer, including a mounting plate, an automatic switch, at least one heater and an alarm system, characterized in that it contains a fan system consisting of a fan with a filter and an exhaust filter, a unit climate control with an electronic control circuit for turning on and off heaters, a fan and a cold start of the equipment, while the alarm system is made in the form of a tamper contact and serves to alert about unauthorized access, the cabinet also has a DIN rail with terminals, end clips and insulators, a flange panel with cable entries. 2. A heating cabinet according to claim 1, characterized in that there is a thermal protection unit for the equipment. 3. A heating cabinet according to claim 1, characterized in that there is an alarm unit. 4. A heating cabinet according to claim 1, characterized in that there is an electronic testing system. 5. The temperature cabinet according to claim 1, characterized in that an electronic temperature sensor is installed that measures the temperature inside the temperature cabinet. 6. The heating cabinet according to claim 1, characterized in that the heater has a built-in bimetallic switch that limits the surface temperature of the heater radiator. 7. A heating cabinet according to claim 1, characterized in that it has a visor protecting the heating cabinet from precipitation. 8. A heating cabinet according to claim 1, characterized in that it is made with the possibility of fastening both to the wall and to round or square supports. 9. The heating cabinet according to claim 1, characterized in that the flange panel with cable entries is located on the bottom wall of the heating cabinet. 10. A heating cabinet according to claim 1, characterized in that there is an earth bolt.

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