KR200284991Y1 - carbon film heater for lamp system of a refrigerator - Google Patents

Abstract

The present invention relates to a refrigerator lighting device equipped with a carbon film heating device.

In the case where the light emitting means of the lighting device of the refrigerator comprises a fluorescent lamp, since the fridge and freezer temperatures are about 5 ° C. or lower, the filament heating of the fluorescent lamp is delayed, so that the fluorescent lamp is turned on lately or the fluorescent lamp is not turned on. The present invention relates to a technology in which a heating element is provided on a rear surface of a lighting case to be seated and configured to provide a lighting device, and the heating means of the heating element is provided by a heating wire.

A predetermined weight part of conductive carbon black material, such as polyester, is formed into a composition and mixed molding within 10 parts by weight (%), and processed into a film form adjusted to a thickness of about 0.1 to 0.3 mm. The conductive carbon film, which is from several thousand kΩ / sq (kiloohms / square), is cut into a shape corresponding to the back of the lamp case of the refrigerator lighting, and is provided as a heat generating means of the lighting assisting heating device of the refrigerator lighting.

The electrically conductive electrode for supplying electric power to the heat generating means provided with the conductive carbon film is formed by using a conductive metal tape or the like. Electrical connection process to form a heat generating unit,

Covering the outer surface of the heat generating portion with a resin re-adhesive tape or a tube or film of synthetic resin material having an insulating property, the insulating outer layer is formed to cover the front surface of the heating element, and one side of the case back of the refrigerator lighting It is made up by bonding double-sided tape to attach to

The exothermic temperature is between 15 and 25 ° C., the time required to rise to the target temperature is within at least 1 hour, the total power consumption is about 1 to 5 watts, and the conductive carbon film is provided as a heat generating means. It is an object of the present invention to a refrigerator lighting apparatus provided with a carbon film heating device having a feature.

According to the present invention, tens of percent of the cost is provided at a lower cost than the conventional heating means, and the thickness is only about 1/5 of the conventional heating means, and thus, the advantage of providing excellent flexibility and the problem of disconnection are improved.

Description

Refrigerator lighting apparatus equipped with a carbon film heating device {carbon film heater for lamp system of a refrigerator}

The present invention relates to a refrigerator lighting device equipped with a carbon film heating device,

The field of the present invention relates to the construction technology and operation of the heat generating means of the heating device for a refrigerator lighting device, the method of constructing the energizing electrode of the heating element, and the shell structure.

First, referring to (A), (B) of Figure 1 attached to the technical field of the present invention as follows.

In the conventional refrigerator 1000, lighting apparatuses 1002a and 1002b are installed at one side of an interior of the refrigerator to illuminate the interior of the refrigerator.

When the lighting devices 1002a and 1002b open the doors 1001a and 1001b of the refrigerator, the lighting devices 1002a and 1002b emit light by electrical control of the door open detection switch 1003, and the light emitting means of the lighting device is incandescent bulb, halogen bulb, fluorescent lamp. It is composed of a lamp 100, and in particular, a large refrigerator (typically a refrigerator having a capacity of 250 liters or more, collectively referred to as "Defel" by Samsung Electronics, "Defel" by LG Electronics, etc. In most cases, the fluorescent lamp 100 is employed to cover a high-quality product strategy and a wider indoor space.

In the case of a lighting device of a refrigerator employing a fluorescent lamp, a fluorescent lamp that emits filament-heated hot electrons due to a low temperature environment having a room temperature of 5 ° C. or lower may have a late lighting or no lighting. In order to generate and compensate for this, a heating device that raises the temperature around the lamp is accompanied, and the prior art thereof is as follows.

Exemplary embodiments of a lighting device and a heating device of a refrigerator that have been conventionally known or known will be described with reference to FIGS. 2A, 2B, and 2C.

2A is a cross-sectional view illustrating a lighting device portion of the refrigerator as follows.

The refrigerator is provided by filling a thermal insulating foam (urethane, etc.) between the steel case 1004 constituting the outer appearance and the indoor resin material case 1006 of the refrigerator constituting the interior of the cold storage space inside the refrigerator. The fluorescent lamp 100 is fixedly installed on the case 110 of the lighting device, the heating device 200 is attached to the rear, the transparent window 120 is fixedly installed on the front of the lighting device, and the lighting power line A cross-sectional view of a lighting device configured by connecting the 310 and the heat generating power line 301 is a heat generating device, which typically has a heat generation temperature of 15 to 25 ° C., and at least a time required to rise to a target temperature is at least. Within 1 hour, the total power consumption is about 1 to 5 watts (watts), and the air in the "space" is always warmed so that the lighting of the fluorescent lamp can be performed smoothly.

2B and 2C are exploded perspective views and side cross-sectional views of a lighting apparatus including the above-described conventional heat generating apparatus.

A heating device 200 provided with a heating wire using electricity as a power source is attached to a rear surface of the lighting case 110 in which the fluorescent lamp 100 is installed, and the heating device 200 includes a double-sided tape member 203. A conventional heating apparatus, comprising: heating the heating wire 201 to a linear reciprocating and bending at predetermined intervals, and adhering the aluminum tape 202 which acts to spread heat evenly, that is, to generate surface heating. It is shown that the lighting device is included.

2 is the oldest technical method (normal electric heating plate, etc.), which is provided in a manner in which the heating wire is bent and arranged, the local temperature difference is high due to the linear heating, and the workability of the lighting device is low. It is a disadvantage that it is not easy to apply to various shape changes of the case.

The technical field of the invention and the prior art have been described above, and the shortcomings of the prior art are as follows. There is a problem of local temperature difference due to onboard heating, low workability of electric heating work, and low ease of handling (such as easy tearing) of aluminum sheet tape. As of April 2002, including material processing costs There is also a problem of low economic feasibility of about 2 to 2.5 thousand won.

Therefore, the object of the present invention is to provide a heating device for a refrigerator lighting device, in which the above-described matters to be improved are fully considered.

The present invention is to provide a technology of the invention further improved and advanced in view of the above problems and situations,

The present invention is to provide a surface heating device of the refrigerator lighting device, characterized in that the conductive carbon film material is provided as a heat generating means.

Thermoplastic synthetic resin materials such as polypropylene and polyester are mixed with carbon black materials within 10% and wt (parts by weight) and other additives, and are molded and formed in a film state of about 0.2 mm thick. As this number is about several thousand kΩ / sq,

Based on the film material of the electrostatic shielding function, which is a classification of a common electrostatic dissipative thermoplastic resin composition, that is, a carbon film material having an electric resistance value of about 10 ² to 10 ⁴ kΩ (surface specific resistance measured at DC 500V), It is an object of the present invention to provide a heat generating device of a refrigerator lighting apparatus, comprising a heat generating means comprising a conductive carbon film having a resistance characteristic of a relatively low side 10 ² kΩ.

In particular, the exothermic temperature is between 15 and 25 ° C., the time required to rise to the target temperature is at least 1 hour, the total power consumption is about 1 to 5 watts, and the air around the fluorescent lamp It is an object of the present invention to provide a heating device of a refrigerator lighting device that is always warmed up so that the fluorescent lamp can be smoothly performed, operated from an AC power source that is a refrigerator operating power source, and an inexpensive heating device is inexpensive.

1 is a plan view of a fluorescent lamp which is a perspective view of a refrigerator and a light emitting means for lighting;

(A), (B), (C) is an exploded perspective view of a conventional lighting device of the refrigerator and an exploded perspective view in which a heating element is provided in a lighting case provided with a fluorescent lamp and a side cross-sectional view thereof

(A), (B), (C), (D), (E), (F) is an exploded perspective view and assembled of the exothermic member of the refrigerator lighting apparatus provided with the conductive carbon film according to the present invention A perspective view of the heating element and a cross-sectional view of two parts and an exploded perspective view and a side cross-sectional view of the lighting device configuration.

<Description of Major Symbols in Drawing>

1. Carbon film type heating device for refrigerator lighting device according to the present invention

10. Heating unit provided with a conductive carbon film which is a heating means according to the present invention

20, 21. Insulation sheath 50a, 50b according to the present invention. Conducting electrode

100. Fluorescent lamp of refrigerator lighting means 110. Refrigerator lighting device case

111. Refrigerator lighting apparatus equipped with a carbon film heating device according to the present invention

120. Refrigerator Lighting Transparent Window

200. A heating device of a conventional refrigerator lighting device using all heating wires as a heating means.

201. Heating wire 202. Aluminum tape ash

203. Double-sided tape 300, 302. Connector housing

301, 302. Power supply line 1000. Refrigerator

Refrigerator door 1002. Refrigerator lighting unit

1003. Door open detection switch means 1004. Enclosure of refrigerator steel case

1005. Thermal insulation layer filled with foam in the refrigerator

1006. Indoor Resin Ash Case for Refrigerator

Preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

The present invention is a conductive carbon film provided by mixing a conductive carbon black material of 10%, wt (wt parts) and other additives to 100 parts by weight of a synthetic resin material such as polypropylene and polyester, and processing it in a thin film state. The electrical resistance value is in the range of several to several thousand kΩ / sq, the preferred thickness is in the range of about 0.2 mm, the power consumption per unit area is about 25 mw / cm 2 (pre-watt per cent square), It is to provide a heating device included in the refrigerator lighting device having a conductive carbon film, characterized in that the operation as a heating means of the heating element.

The conductive carbon film composed of the heat generating means in the present invention is a film material of the electrostatic shielding function, that is, a classification of a conventional electrostatic dissipative thermoplastic resin composition, that is, its electrical resistance value is 10 to 10,000 kΩ (surface measured at 500 V DC). Specific resistance) It is provided with the electroconductive carbon film which has the characteristic of the resistance value of a comparatively low side among them based on the antistatic carbon film inside and outside.

Technical configuration and operation of the heating device of the refrigerator lighting apparatus according to the present invention and one preferred embodiment will be described in detail with reference to FIG.

3 (A) is an exploded perspective view illustrating the heating device of the refrigerator lighting apparatus according to the present invention.

While the conductive carbon film that is a heat generating means is cut and provided in a size and shape corresponding to the rear surface of the lighting case 110 of the refrigerator lighting apparatus,

While the conductive metal tape or the conductive thin film metal sheet and the conductive electrode plates 50a and 50b provided by the conductive adhesive are adhered to each other,

The power supply wires 301a and 301b to which the connector housing 300 is connected are soldered and joined to the energizing electrode plates 50a and 50b to form the heat generating section 10.

An exploded perspective view of an embodiment of a heating device of a refrigerator lighting apparatus according to the present invention, which is formed by adhering a resin material tape 20 to an upper surface of the heat generating unit 10 and adhering a double-sided tape 21 to a lower surface thereof, is shown in an exploded perspective view. will be.

Figure 3 (B) is a perspective view of the heating device 1 of the refrigerator lighting apparatus according to the present invention.

3C illustrates a cross section between “a” and “b” of FIG. 3B, as follows.

The tape 20 coated with the adhesive 20b is adhered to the resin material film 20a on the upper surface of the heating element 10 provided with the carbon film, and the adhesives 21b and 21c up and down on the resin material film 21a on the lower surface. The laminated cross section of the thing comprised by adhering the double-coated tape apply | coated) is shown.

FIG. 3D shows the energized electrode portion between "D" and "D" in FIG. 3B in a stacked sectional view.

3 (E) is a fluorescent lamp 100, which is a light emitting means is fixedly installed in the recessed portion of the refrigerator lighting device case 110, the heat generating device (1) consisting of a conductive carbon film according to the present invention on the back It is shown in exploded perspective view that is attached.

3 (F) is a cross-sectional view of a refrigerator lighting device 111 is provided with a heat generating device 1 of the conductive carbon film method according to the present invention.

The materials of the tapes 20 and 21 attached to the upper and lower surfaces of the heating element 10 are for minimizing the change in shrinkage expansion of the carbon film during insulation and heating.

Although not illustrated in the drawings, an embodiment of the modification of the conducting electrode configured by the conducting electrode for supplying electric power to the heat generating means provided with the conductive carbon film by processing the joining of the conducting spiral or the conductive metal thin film sheet by a thermal fusion processing method There is also.

In addition, there is also a modified embodiment in which a tube or film of a synthetic resin material provided with insulation is coated on the outer surface of the heat generating portion 10 to perform heat fusion bonding.

The price of the heating device of the refrigerator lighting apparatus illustrated and described with reference to the drawings may be configured within 7 to 9 hundred won as of April 2002.

The gist of the technical configuration of the refrigerator lighting apparatus 111 with the heat generating device 1 of the conductive carbon film method according to the present invention, as described in detail by illustrating the drawing, the heat generating means is provided with a conductive carbon film The present invention is designed based on the fact that the conductive electrodes are joined at predetermined intervals and the heat-resistant resin material tape is bonded to the upper and lower surfaces.

An example of the configuration of the preferred heating element 10 of the refrigerator lighting apparatus 111 provided with the heating device 1 of the conductive carbon film method according to the present invention is as follows.

A conductive carbon film of 0.5 mm by weight of 0.5 wt parts (%, wt) of conductive carbon black was formed into a polyethylene-based resin material by cutting a conductive carbon film having a thickness of 4.5 cm to 18 cm in length and a conductive copper tape having a width of 3 mm by 4.5 cm. The electrical characteristics of the electrode were about 23 volts and 60 hertz. When the electric power of the single-phase 220 volt 60 hertz was applied to the electrode of the heating element, it was cut to length and adhered to both ends in the longitudinal direction. kΩ, conduction current is 9.6mA, and the temperature characteristic is the rising saturation temperature is about 22 ℃, the saturation temperature reaching time is about 25 minutes, which is the heat generation of the refrigerator lighting device for the purpose of the present invention It is an example which can be suitable as an apparatus.

As described above, if the person skilled in the art of the present invention is capable of carrying out a myriad of modifications by adjusting the weight portion, thickness, and electrode spacing of the carbon black, the modifications are within the scope of the technical idea of the present invention. He should be protected.

The present invention has been described with reference to the drawings by way of example, and summarized as follows.

In the case where the light emitting means of the lighting device of the refrigerator comprises a fluorescent lamp, since the fridge and freezer temperatures are about 5 ° C. or lower, the filament heating of the fluorescent lamp is delayed so that the fluorescent lamp is turned on late or the lamp does not turn on. The present invention relates to a technology for providing a conductive carbon film as a heat generating means, in which a heating element is disposed on a rear surface of a lighting case to be seated and configured to form a lighting device.

A predetermined weight part of conductive carbon black material, such as polyester, is formed into a composition and mixed molding within 10 parts by weight (%), and processed into a film form adjusted to a thickness of about 0.1 to 0.3 mm. The conductive carbon film, which is from several thousand kΩ / sq (kiloohms / square), is cut into a shape corresponding to the back of the lamp case of the refrigerator lighting, and is provided as a heat generating means of the lighting assisting heating device of the refrigerator lighting.

The conductive electrode for supplying electric power to the heat generating means provided with the conductive carbon film is processed using a conductive metal tape or the like, or the bonding of the conductive spiral or the metal thin film sheet by a fusion welding method, and the power input wire is connected to the electrode. Electrically connected to form a heat generating unit,

Covering the outer surface of the heat generating portion with a resin re-adhesive tape or a tube or film of synthetic resin material, the insulating outer layer is formed to cover the front surface of the heating element, and one side of the case back of the refrigerator lighting It is made up by bonding double-sided tape to attach to

The exothermic temperature is between 15 and 25 ° C., the time required for the temperature to rise to the target temperature is at least 1 hour, the total power consumption is about 1 to 5 watts, and the conductive carbon film is provided as a heat generating means. It is related with the refrigerator film | membrane apparatus provided with the heat-generating apparatus of the carbon film system which has it characterized by the above-mentioned.

According to the present invention, tens of percent of the cost is provided at a lower cost than the conventional heating means, and the thickness is about 1/5 of the conventional heating means. There is an effect provided.

Claims (3)

Regarding the refrigerator lighting device in which the heating device is installed, A conductive carbon film having a conductive carbon black content of less than 10 parts by weight (%, wt), a thickness of about 0.2 mm, and an electrical resistance characteristic of several to several thousand kΩ / sq is provided as a heat generating means of the heating element, The heating element is formed by cutting into a predetermined shape corresponding to the back side of the case of the lighting device to form a heating element, and attaching a conductive electrode provided with a conductive metal tape to the heating element at predetermined intervals, and soldering and connecting wires to form a power supply unit. After that, a heating device having a feature that is formed by adhesively processing the resin material tape on the upper and lower surfaces is provided by adhesively installed on the rear of the refrigerator lighting case. The conductive carbon film of claim 1, wherein 0.5 wt parts (%, wt) of conductive carbon black is mixed with a polyethylene-based resin material, and the conductive carbon film formed into a film material having a thickness of 0.1 mm is formed in a shape corresponding to the rear surface of the refrigerator lighting device case. A refrigerator illuminating device comprising a heat generating device that is cut and formed by heat generating means, and is formed by adhering a conducting electrode to both ends of the longitudinal direction, wherein the volume resistance value between the conducting electrodes is about 23 kΩ. 2. The refrigerator illuminating device according to claim 1, wherein the conducting electrode is made of a conductive metal thin film plate and has a heat generating device characterized in that the conductive carbon film is formed by heat fusion bonding.