RU179202U1 - A BENCH (STORE, CHAIR) WITH HEATING FOR WORKERS AND RELAXERS INSIDE UNHEATED ROOMS AND OUTDOORS UNDER CANVAS, AT A LOW AIR TEMPERATURE - Google Patents

Abstract

The utility model relates to occupational and recreational hygiene and can be used to increase labor productivity and increase the comfort of working and resting conditions, at low air temperatures, in many areas of technology. A disadvantage of the known devices is the low percentage of thermal energy that is used to heat a person, and a large consumption power, high energy consumption, high cost. The essence of the proposed utility model is that increasing the temperature of the contact area of the heated element to a comfortable , is carried out only while a person is on the seat of this utility model, at a temperature lower than that set on the thermal relay and turned on for heating by switches installed on the surface of the heated board. Increasing the amount of thermal energy directed to heating a person, reducing heat loss of the heating element, reducing power, reducing energy consumption, increasing security, reducing the cost of components - these tasks were solved when creating the proposed utility model. The proposed device, which is made in the form of a bench for workers and vacationers inside unheated rooms and outside under a canopy, is made using a heated board from KDP, in which heating elements of three seats are mounted, with heat-reflecting films of foamed polyethylene from the bottom, inside the design of the heated board. A zone for heat-insulating materials from a safety box is mounted below the heated board. From the bottom to the heated board, inside the safety box, two layers of insulation made of basalt stone wool and extruded foam polystyrene covered with a vapor barrier film and foamed polyethylene are pressed tightly. The heating element is completely insulated from below. The entire heat flux of energy will flow upward. One of the known types of heating elements using 24 V and 220 V can be installed as a heating element. This is a low-voltage self-regulating cable or low-voltage perforated fabric made of carbon fibers and thermoplastic connected to molecular copper buses level, 17 cm wide. At 220 V, the heating elements can be a shielded two-core cable or a thin, non-perforated fabric consisting of carbon fibers and thermoplastic, with Connected with copper conductors at a molecular level, 60 cm wide, covered with an insulating coating and fleece. To reduce the static voltage from the heated fabric of each seat of the utility model, a layer of conductive adhesive with copper tape inside above the heating element in the structure of the heated board is installed. The ground wire, utility model, is connected to the copper tape output by clamping terminals in the design of the heated board 4, of each seat and is insulated with bitumen tape. The heating element is glued to the heated board on a silicone, warm-water sealant. He also poured all the spaces between the heating wires to create an even flat surface. Two layers of heat-reflecting film are glued to this surface. Two wires are led out through openings in it and in a thin board closing the recess from the KDP screwed with screws to the heated board, as shown. Two wires in the corrugated tube are attached from the bottom to the heated board with removable fasteners through the junction box, to the thermal relay or switch, with the backlight turned on, installed on the surface of the heated board, to the right of each seat. The heating element is installed only in places where a person touches the heated board of the seat . Reduced power consumption of the entire proposed model. The design of the proposed device includes a differential circuit breaker, thermal relays, switches, to reduce electricity consumption, at high air temperature. Heating switches can be installed with remote control. This is convenient to use in the commercial use of the utility model. Renting a grill with a table under a canopy for rent for a while.

Description

The technical field to which the utility model relates.

The utility model relates to heating chairs and other appliances. The utility model can also be attributed to the hygiene of workers inside unheated rooms (a workshop, a warehouse, a trainer at the skating rink, a locksmith in the garage, milkmaids) and vacationers outside under a canopy (a passenger at a bus stop, a sports fan, resting in a park and on a water deck a vessel, a client of a cafe on an open veranda, on the grill in a summer cottage) to create comfortable working and relaxing conditions, at low air temperature, and to other areas of technology.

State of the art

A device is known - a heated bench.

A known device relates to the heating of chairs and other devices. Heating of the known device provides an element that increases the surface temperature of the bench depending on the air temperature. “For example,” if the street is freezing to minus 20 degrees, the bench heats up to plus 15 degrees. If the temperature rises to zero, the bench cools to plus five. At the same time, it is precisely that section of the bench on which the person sits that heats up, ”the statement says. Power at heating 600 W / h from an advertising video clip on the same site. A device is known from print and electronic types of publications: https://lenta.ru/news/2014/12/29/vdnkh/, http://izvestia.ru/news/577043 from 10.19.2016,

http://hobbyka.ru/tags/skameyki_s_podogrevom/ and a video on this site.

Only 10-20% of the thermal energy of a known device is used to heat a person. This is due to the lack of thermal insulation of the heating elements of the known device. When a person is seated on a bench, a person acts as thermal insulation and compensates for part of the heat loss from above on this site. At this point, the temperature of the bench rises. At low temperatures, the heating element will work around the clock. The average electricity consumption with the declared power of 600 W / h will be about 14.4 kW per day, during the month it will be 432 kW.

The heating element in the known model is a heating cable, mounted in the middle of the beam of the bench made of wood-polymer composite.

A disadvantage of the known device is the high energy consumption, large heat loss of the heating element, a low percentage of thermal energy used to heat a person, high cost, low electrical safety.

Utility Model Disclosure

The technical result in the proposed utility model is to reduce the energy consumed due to: reducing the amount of the heating element of each seat (only in places where the human body is in contact with the heated board) and reducing the operating time (after the thermal relay is activated, or the on / off switch of the heated element is turned on); reduce heat loss of the heating element in the device - by using several layers of heat-reflecting films of foamed polyethylene inside the structure of the heated board and under it - two layers of basalt stone wool and extruded polystyrene foam, covered from above and below, with a vapor barrier film and foamed polyethylene, between safety rails connected from below between from below; reducing power consumption in the device, i.e. using less heating element (only on the area of contact of the human body with the heated board).

The claimed result is achieved in the claimed utility model, which includes at least one seat assembled from a heated board, from a wood-polymer composite, inside which heating elements are placed, in three separate seats that are glued from the bottom of the board, under a grounded conductive adhesive, silicone heat-conducting sealant, under which heat-reflecting films are installed, closed from below by a board or plywood and a safety box attached from below to a heated board, inside the cat cerned tightly pressed against the underside of the heated heater board covered with a vapor barrier and heat reflecting foil, wherein the heating element is heated in the board is connected to a thermostat with temperature sensor, via a step-down transformer which are located in the safety box.

According to a useful model, the heating element of the heated board made of wood-polymer composite is installed only on the area of human contact with the heated board, in three separate seats.

According to a useful model, the heating element can be used in the form of a PLEN (film heating element) or a heating wire.

A consonant utility model in it under the heating element of the heated board, under the grounded conductive adhesive, silicone heat-conducting sealant, under which heat-reflecting films are installed, closed from the bottom with a board or plywood.

According to the utility model, under the heated board, two layers of insulation made of basalt mineral wool and extruded foam polystyrene, covered with a vapor barrier film and foamed polyethylene, between safety rails, box underneath the heated board are tightly pressed.

According to the utility model, a thermal relay is installed in it, with an external temperature sensor.

According to the utility model, it has a heating switch on the surface of the heated board in three separate seats or remote control switches are made.

According to the utility model, all metal parts are grounded in it and the static voltage is removed by grounding the conductive glue over the heating element.

According to the utility model, a toroidal step-down transformer is installed in it, with a voltage on the secondary winding of 12/24/36 V.

Brief Description of the Drawings

The essence of the utility model is illustrated by drawings, namely: FIG. 1 which is a perspective view from above in an isometric view; FIG. 2 which shows a general view from the top in an isometric view of the part (two seats) of one safety box, and two "P" shaped distribution boxes, without thermal insulation and heated elements from above; FIG. 3 which shows a section through one heated bench spot (AA) of FIG. one; FIG. 4 which shows a view of a perforated film heating web (PLEN), top view; FIG. 5 which shows a view of a heating element - a heating low-voltage cable, a top view; FIG. 6 which shows a section of one element of a heated place in the middle (BB), a section of one element of a heated bench location, in the place of fastening of the heated board on the left (BB), a section in the place of fastening on the right (G-G).

Utility Model Implementation

Any device must be safe to use.

In the proposed utility model, this is provided for by the installation of Dif. machine in the input circuit of the phase of the utility model, galvanic isolation of the secondary circuit of a step-down transformer, if installed.

A utility model should not be expensive to manufacture. This can be achieved by using boards made of wood-polymer composite only for heated boards and by reducing the number of elements in the design of the utility model.

The essence of the proposed utility model is that increasing the temperature of the contact area of the heated element to a comfortable one is carried out only at the seat of this utility model, at a temperature lower than but not higher than that set on the thermal relay or when the heating switch is turned on / off.

The device operates as follows.

Before using the utility model by workers or vacationers, the technical service, or the owner of the shop, sets the minimum and maximum temperature for the remote temperature sensor 0 to operate, on the thermal relay 1 installed in the “P” distribution profile 2, safety box 3, under the heated element 4 (board from wood-polymer composite). At the input of the voltage supply circuit (phase), a differential machine 5 is installed on the utility model. When the air temperature drops below the set temperature, the input phase voltage circuit is closed at 220 V, from the machine 5, to three external moisture protection switches 6 installed on the heated board 4 , with the backlight on, allowing you to apply an operating voltage of 220 V to step-down toroidal transformers 7, then to the heating elements 8, each heated place separately.

When you turn on the switch 6, the heated place, the operating voltage of 220 V, is supplied to a step-down toroidal transformer 7, then to the heating element 8, seat. Heating of the heating element 8 will occur after compensation for heat loss from below and above it.

In the utility model, the reduction of heat loss from the bottom of the heating element 8 is achieved by gluing to it from the bottom, two or three layers of heat-reflecting film 9, made of foamed polyethylene in the structure of the heated board 4. Bottom of the heated board 4, heat-reflecting film 9, is covered with a thin board from WPC 10. The current board 10 is screwed itself by cuts 11 to the heated board 4 along the edges, as shown in FIG. 3. Additionally, from the bottom to the heated board 4, inside the safety box 3, two layers of insulation are installed tightly adjacent to it: on the bottom of the extruded polystyrene foam 12, on top is a layer of stone wool 13, closed at the top and bottom with a vapor barrier film, and then with heat-reflecting film, to prevent ingress air into a layer of stone wool.

Such a layer of heat-reflecting and heat-insulating materials, in a utility model, allows to reduce the maximum heat loss downward from the heating element 8. When heating the heating element 8, in the proposed utility model, having heat loss only from above will allow the heated board to be heated to a temperature higher than that of the known model .

Heat loss from above, on the area of contact of the heated board 4, with a person, is reduced due to the insulating and thermal characteristics of the person, after placing the person on the seat included in the heating.

This allows to minimize the heat loss of the heated board 4, in the utility model, bottom and top, when heated. The heat from the bottom of the heating element 8 is reflected from the heat-reflecting films 9, and strive upward, heating the surface of the heated board. The heating of the area of contact between a person and a heated board (4) occurs within a few minutes. The longer a person is in a heated place of a utility model, the higher the temperature of heating the area of contact with the heated board 4.

The purpose of the utility model is to increase the amount of thermal energy to a person, at the minimum cost of the amount of electricity achieved. The heating temperature of the heated board in the utility model is much higher, and can be up to plus 35 degrees Celsius, at minus 20 degrees Celsius. With a lower total power of the utility model, the heating temperature of the heated board is higher than that of the known model.

As the heating element 8, in the utility model, two tweed elements can be installed: the heating cable of FIG. 5 with a power of 20 watts per 2 meters or a film heating element (PLEN) of FIG. 4 s power from 290 W per m ² , depending on the magnitude of the applied voltage to the ESP.

At temperatures up to minus 20 degrees Celsius, the consumption of a heating cable per seat of a utility model can be from 20 W / h. up to 48 W / h. From 14.4 to 34.6 kW per month. Three seats - 103.8 kW

The consumption of a film heating element of one seat of a utility model will be from 20 W / h to 50 W / h. Up to 36 kW per month. Three seats per month - 108 kW.

This is when the state is on for 24 hours, for a month.

The heating time of the heating element 8, to a comfortable temperature of the heated board will decrease, with increasing power of the selected heating element.

To reduce the consumption of electricity consumed in the utility model, the presence of a thermal relay 1 and switches 6, with backlight on, installed on the surface of the heated board, to the right of each seat.

But even working around the clock for a month, the utility model consumes several times less electricity than the known model.

These data indicate high energy savings when using a utility model in many areas of technology.

A utility model is made as follows.

The manufacture of a heated bench consists in collecting a safety box 3, three seats long, with a heated element (board) 4 fixed on it, from DNA and other elements inside the safety box 3.

It turns out a finished device with heating, which is screwed to the supporting side profiles 14, covering the side sections of the boards installed on them.

The safety “P” shaped box 3, bolted by bolts 15, to the side support points 14, of the fastening of the heated board 4, along the entire length of the utility model, is designed to take pressure on the heated board 4 and create a zone of its insulation from below.

Having connected the safety guides 16 from the wood-polymer composite, the bottom is laminated plywood (FOF) 17, we get a safety “P” shaped box, three seats in length. FIG. 2

Between the seats of the heated boards 4, under the safety box 3, to the safety guides 16, a reinforcing rail 18 is screwed from DNA, to which the leg 19 is screwed, with the possibility of adjustment, between the seats. Between the safety guides 16, a “P” shaped connecting profile 2 is screwed from the KDP, on the inside of which there is a distribution box 20 for external wiring. Inside the distribution box 20, in the foam plastic box 21, there is a differential circuit breaker 5, a thermal relay 1 (in the heating device of the first heated bench element) and a step-down toroidal transformer 7. All wire connections are made in the distribution box 20, using the connecting terminals.

In the utility model, safety guides 16 are made hollow from a rectangular KDP profile. They are screwed between the side support points 14 of the fastening of the heated boards 4. Safety guides 16 are located along the heating element 8, as shown in FIG. 3. The maximum pressure on the safety rails 16, the heated board is carried out only at the places where the structure of the heated board 4, full. This is done to avoid excessive pressure on the heat-reflecting material 9, inside the heated board, under the heating element 8. As a result, the heat-reflecting element 9, inside the heated board 4, is not compacted and its heat-reflecting properties do not deteriorate.

On all supporting parts of the safety box 3, heat-insulating material (high-density foam rubber) is glued to prevent the entry of cold air into the space between the heating board 4 and the insulation of the safety box 13.

Between themselves, safety guides 16, from the bottom, are screwed by cuts on a sheet of laminated plywood (FOF) 17, creating a heat insulation zone under the heated board 5. From the inside, the safety box is glued with heat-reflecting foamed polyethylene 22. The first layer of thermal insulation from extruded polystyrene foam 12 should be laid on the foamed polyethylene at the bottom of the safety box , 30 mm thick, on it a second layer of thermal insulation from mineral wool 13, 100 mm thick. Stone wool is completely wrapped in a film of hydro vapor barrier, to prevent air from entering the layer of mineral wool. We cover on top and sides, a layer of stone wool, isolated from air, with a layer of heat-reflecting film, with the foil side facing the heated board 4. As a result, the height of the insulation layer should be 20 mm higher than the sides of the safety box 3. This is done so that the heated board 4, after installation, was pressed firmly against the soft layer of stone wool 13, to reduce heat loss by heating the heating element 8. Underneath each heated board 4, the seat, between the safety rails 16, a “P” shaped connecting profile is screwed 2, from KDP.

In the utility model, the support legs 19 are hollow. The hollow shape of the legs profile allows you to secretly hold the power wires 23, in corrugated insulation to a utility model inside the profile. In the utility model, the fastening of the heated board 4 is carried out by long bolts 15, to the supporting (side) profiles 14, fastening the boards. In the heated board 4, for the mounting bolts 15, holes are made with a diameter equal to the diameter of the bolt. To deepen the caps of the mounting bolt on top, additional recesses of a larger diameter are made.

As a heating element in a utility model, depending on the supplied voltage of 24 V or 220 V, two types of heating element can be installed: a heating cable with a power of 20 W per linear meter or a film heating element 8, with a power of 290 W per m2 24 V or 220 V.

At an operating voltage of 24 V, a thin perforated web of FIG. 4, consisting of carbon fibers and thermoplastic, connected to copper conductors at the molecular level, 17 cm wide, covered with fleece, for better adhesion to materials.

17 cm wide. Copper wires are connected to copper busbars using contact clamps that are insulated with bitumen tape. FIG. four

When applying a working voltage of 24 V to the heating elements 8 of a utility model, it is possible to install a heating low-voltage cable. FIG. 5 Known from public information: http://albrus.ru/catalog/samoreguliruyushchiysya__greyushchiy_kabel/greyushchij_kabel_l2_24_volt_heat_trace.

When applying an operating voltage of 220 V, a thin, non-perforated sheet consisting of carbon fibers and thermoplastics connected to copper conductors at a molecular level, 60 cm wide, coated with an insulating coating and can be installed on the heating element (in a utility model without a step-down toroidal transformer 7) fleece, for better adhesion to materials.

Slices of this canvas are insulated with bitumen tape. Copper wires are connected to copper busbars using contact clamps that are insulated with bitumen tape.

The power of the heating element for 220 V from this sheet 60 cm wide and 15 cm long is 50 W / h.

The power of the 24/36 V heating element from this sheet is 17 cm wide and 40 cm long is 20/50 W / h.

Known from public information.

The technical specifications of the film heating element can be found at www.carbontecrus.ru and http://www.hicotherm.com/321_kopie_von_technik.html

To reduce the static voltage from the heated web, each seat of the utility model, a layer of conductive glue is installed, with copper tape 24, inside above the heating element in the design of the heated board. The ground wire 25, utility model is connected to the output of the copper tape 24, clamp terminals in the design of the heated board 4, each seat and is isolated with a bitumen tape.

In a utility model, when 220 V is supplied to the heating element, a heating shielded two-core cable of 220 V can be installed.

It is known from open information that a shielded two-core cable is heated: http: //www.teplomatica.ru.devi/devi-devi-deviflex-10t-18-20vt-dlina-2m.html

The power of the heating element is 220 V, from a heating cable of 20 W, with a wire length of 2 meters, three strips 60 cm wide in a heated place.

The power of the heating element is 24 V, from the heating cable 42 W, with a wire length of 1.4 meters in three strips of 40 cm.

In the utility model, a board 5 made of wood-polymer composite (WPC) is used as a heated element. It is strong, not subject to moisture, wear-resistant, which is a good insulator for electric current.

In a utility model, 65 cm of heated board 5, 34 cm deep, is allocated for one seat. From the bottom of heated board 4, for one heated place, a recess cutter is made of 17 mm wide with a width of 20 cm and a length of 36 cm to 61 cm, depending on the selected heating element 8. To relieve the static voltage of the heating elements, conductive glue is applied to the surface of this recess, a copper tape 24, is installed in the layer of conductive glue along the heating element of each seat. The output of tape 24 is insulated with bitumen tape. The ground wire 25, is connected by clamping terminals, to the copper tape 24, and is isolated by a bitumen tape in the design of the heated board. The ground wire 25, output from the heating board 4, together with the wires supplying the operating voltage in the corrugated tube. The heating element 8 is glued with an insulating adhesive, bottom in the recess of the heated board 4, as shown in the drawing of FIG. 3 Connection of wires to the heating element 8 is carried out on the one hand, where the distribution box 2 is located, for external wiring.

The heating element 8, to the heated board 4, is glued to a silicone, warm-water sealant. He also poured all the spaces to create an even flat surface. Two or three layers of heat-reflecting film 9 are glued to this surface. The wires are led out through the holes in the film and in the thin board 10 closing the recess, from the WPC, screwed by the cuts 11 itself, to the heated board 4, as shown in FIG. 3. The wire in the corrugated tube is attached from below to the heated board 4, removable fasteners through the distribution box 20, to the switch 6. For the switch 6, in the heated board 4, a hole is made for each seat, the phase wire from the thermal relay 1, to the switch 6 is connected from the bottom of the heated board, then to the heating element 8, of this seat, through a distribution box.

The voltage supplied to the proposed utility model through a wire laid in a corrugated tube for external wiring, underground, through a hollow leg of a useful device of 220 V, a differential machine 5 is supplied, then on a thermal relay 1, in the nearest heating element of the heated board 5. One a differential machine 5 and one thermal relay 1, is used in the supply circuit of an input voltage of 220 V, to all heated elements of the device.

Safety boxes 3, from the ends are closed with a thin board from KDP 26. The ease of installation and the low cost of the proposed device will allow replacing only the landing part in the existing ordinary benches (benches, chairs), while maintaining the side support profiles covering the side sections of the heated boards 5.

The length of the finished device depends on the number of heated places and the width of the seats.

The proposed utility model is easy to manufacture, reliable and safe to use. It allows you to increase the proportion of heat used to heat a person up to 80%. When using heating elements at 220 V, a step-down toroidal transformer is excluded.

At the request of the customer, in a utility model, ordinary switches on the seats can be replaced by switches with remote controls.

According to technical requirements, all metal parts of a utility model must be grounded.

Input voltage 220 V, comes from street lamps, in which there is also a ground wire. Two wires (phase and 0) and a third ground wire extend to the utility model in the ground, in a corrugated insulating tube.

Earth and zero are connected to Dif. automatic, and zero is bolted to all metal parts of the utility model and to the wires of copper tapes 24. from conductive glue, each seat.

All heating elements are completely insulated with silicone, warm-water sealants. Dif machine 5, and thermal relay 1, is installed inside the junction box 20, for external wiring with IP55, inside a foam insulating box 21. All wires are in a corrugated tube, all wires are connected only in junction box 20, connecting insulating terminals. Miniature circuit breaker 6, with a protective cap installed on it, complies with protection class IP65. Switches https://www.scat-technology.ru/vyklyuchateli/klavishnye/h8553vbnaf/

Depending on the climatic and geographical working conditions of workers and vacationers, they can be exposed to low temperatures indoors and out. At low temperatures, workers and vacationers have increased heat transfer and cooling of body parts. The use of a useful device significantly reduces the risk of diseases associated with hypothermia of the human body at low air temperatures.

The advantage of the proposed utility model is that the more time a person is on the utility model, the more heat he receives. This is very true in severe frosts. One human life saved from overcooling with a useful model is an excellent result.

Claims (9)

1. A heated bench (bench, chair), including a seat, assembled from a heated board made of wood-polymer composite, inside which there is a heating element that is glued to the bottom of the board, under a grounded conductive adhesive, silicone heat-conducting sealant, heat-reflecting elements are installed under the heating element films closed from below with a board or plywood and a safety box attached from below to a heated board, inside of which a heater is covered, pressed to the bottom of the heated board roizolyatsionnoy and heat reflecting foil, wherein the heating element is heated in the board is connected to a thermostat with a temperature sensor through a step-down transformer which are located in the safety box. 2. A bench (bench, chair) with heating according to claim 1, characterized in that the heating element of the heated board of the wood-polymer composite is installed only on the area of contact of the person with the heated board. 3. Bench (bench, chair) with heating according to paragraphs. 1 and 2, characterized in that the heating element can be used in the form of PLENA or heating wire. 4. A bench (bench, chair) with heating according to claim 1, characterized in that in it under the heating element of the heated board, under the grounded conductive adhesive, silicone heat-conducting sealant, under which heat-reflecting films are installed, closed from the bottom with a board or plywood. 5. A bench (bench, chair) with heating according to claim 1, characterized in that under the heated board two layers of insulation made of basalt mineral wool and extruded foam polystyrene, covered with a vapor barrier film and foam polyethylene, are tightly pressed between the safety guides of the box, which is heated from below boards. 6. A bench (bench, chair) with heating according to claim 1, characterized in that a thermal relay with an external temperature sensor is installed in it. 7. A bench (bench, chair) with heating according to claim 1, characterized in that it has a heating switch on the surface of the heated board in three separate seats or remote control switches are installed. 8. A bench (bench, chair) with heating according to claim 1, characterized in that all metal parts are grounded in it and the static voltage is removed by grounding the conductive adhesive over the heating element. 9. A bench (bench, chair) with heating according to claim 1, characterized in that a toroidal step-down transformer with a voltage on the secondary winding of 12/24/36 V is installed in it.

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