KR101619205B1 - Energy saving carbon heating elements - Google Patents

Energy saving carbon heating elements Download PDF

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Publication number
KR101619205B1
KR101619205B1 KR1020150146282A KR20150146282A KR101619205B1 KR 101619205 B1 KR101619205 B1 KR 101619205B1 KR 1020150146282 A KR1020150146282 A KR 1020150146282A KR 20150146282 A KR20150146282 A KR 20150146282A KR 101619205 B1 KR101619205 B1 KR 101619205B1
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KR
South Korea
Prior art keywords
heating
body portion
heating element
pair
coupling
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Application number
KR1020150146282A
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Korean (ko)
Inventor
박홍연
Original Assignee
박홍연
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Priority to KR1020150146282A priority Critical patent/KR101619205B1/en
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Publication of KR101619205B1 publication Critical patent/KR101619205B1/en
Priority to CN201621115477.5U priority patent/CN206413209U/en

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    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/10—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor
    • H05B3/12—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor characterised by the composition or nature of the conductive material
    • H05B3/14—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor characterised by the composition or nature of the conductive material the material being non-metallic
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/02—Disposition of insulation
    • H01B7/0208—Cables with several layers of insulating material
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/02—Details
    • H05B3/06—Heater elements structurally combined with coupling elements or holders
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/10—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor
    • H05B3/12—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor characterised by the composition or nature of the conductive material
    • H05B3/14—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor characterised by the composition or nature of the conductive material the material being non-metallic
    • H05B3/145—Carbon only, e.g. carbon black, graphite
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/10—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor
    • H05B3/12—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor characterised by the composition or nature of the conductive material
    • H05B3/14—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor characterised by the composition or nature of the conductive material the material being non-metallic
    • H05B3/146—Conductive polymers, e.g. polyethylene, thermoplastics
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/40—Heating elements having the shape of rods or tubes

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Abstract

The present invention relates to a heating heating element, and the energy saving carbon heating heating element according to the present invention comprises a heating core including 34 to 36% by weight of carbon black, 29 to 31% by weight of polyethylene and 34 to 36% by weight of polypropylene bar shaped heating bar; A pair of connecting conductors respectively coupled to both ends of the heating rod; A coupling piece passing through each of the pair of coupling conductors and coupled to the heating rods; And a coupling cover formed at a coupling portion between the heating bar and the pair of connection conductors.

Description

{ENERGY SAVING CARBON HEATING ELEMENTS}

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an energy-saving carbon heating element, and more particularly, to an energy-saving carbon heating element capable of reducing electricity consumption.

In recent years, researches on the production and application of environmentally friendly heating elements have been conducted in many countries due to energy saving and environmental protection problems. Generally, a heating element converts energy into heat energy and radiates heat to transfer energy. The heating element is used not only for household use but also for many industries. Such a heating element may be classified into a metal heating element, a non-metallic heating element, and a composite heating element combining carbon and polymer. The nichrome wire, which is a nickel chromium alloy, has been generally used for a heating resistance portion of a conventional heating element. In recent years, a heating element using a ceramic Is gradually emerging.

In order to use such a heating element for heating, it is important that the heating element maintain a constant temperature (predetermined temperature) over time. In the conventional heating heating element using nichrome wire or ceramics, a separate element such as a thermistor is used to maintain a predetermined temperature It was common.

One of such conventional heating heating elements is disclosed in Patent Document 1, and FIG. 1 is a partial cross-sectional view of a conventional heating heating element. 1, a conventional heating heating element includes a tubular mandrel 1 made of a metal such as brass, iron or aluminum, a ceramic tube 2 surrounding the tubular mandrel 1, and a tubular mandrel 1, And a ceramic insulator and a heat ray are received between the ceramic tube 2 and the ceramic tube 2 to generate heat. At this time, a temperature sensing sensor 3 is provided at the end of the ceramics tube 2, and a lead wire 4 is connected to the temperature sensing sensor 3.

The conventional heating heating element can prevent the surface of the ceramic tube 2 from being rapidly heated by the heat of the heating wire due to the above-described structure, thereby preventing a thermal shock due to an external abrupt temperature change. However, in the conventional heating heating element, a separate temperature sensing sensor 3 is installed to maintain a predetermined temperature, and a lead wire 4 is connected to the temperature sensing sensor 3 to connect the temperature sensing sensor 3 with the lead wire 4, And receives information about the temperature from the temperature sensor.

That is, in the conventional heating heating element, since the temperature sensing sensor 3, the lead wire 4, and the like must be additionally provided to maintain a predetermined temperature, the structure is complicated, resulting in an increase in manufacturing cost, 3 or the lead wire 4 is damaged, a predetermined temperature can not be maintained.

KR 10-0814961 B1 2008. 03. 12.

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above problems, and it is an object of the present invention to solve the problems of the prior art, And to provide a reduced heating heating element.

In order to solve the above problems, an energy saving heating element according to the present invention includes a bar shape including a heat generating core containing 34 to 36% by weight of carbon black, 29 to 31% by weight of polyethylene, and 34 to 36% by weight of polypropylene A heating rod of A pair of connecting conductors respectively coupled to both ends of the heating rod; A coupling piece passing through each of the pair of coupling conductors and coupled to the heating rods; And a coupling cover formed at a coupling portion between the heating bar and the pair of connection conductors.

The energy-saving carbon heating heating element according to the present invention is a synthetic resin mixture of carbon black, polyethylene, and polypropylene. Since it has good heat generating efficiency and low energy and maintains a predetermined temperature, a device for maintaining a predetermined temperature There is an effect that the manufacturing process and manufacturing cost are reduced.

FIG. 1 is a perspective view of a conventional heating element,
2 and 3 are perspective views of an energy-saving carbon heating heating element according to the present invention
Fig. 4 is a perspective view of an energy-saving carbon heating heating element according to the present invention,
FIG. 5 is a graph showing a resistivity characteristic of a heating element using a ceramic according to temperature
FIG. 6 is a graph showing the resistivity characteristics of an energy-saving carbon heating heater according to the present invention
FIG. 7 is a graph showing temperature and current characteristics of an energy-saving carbon heating heating element according to the present invention over time
8 is a perspective view of a coupling piece according to the present invention;

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, an energy-saving carbon heating heating element according to the present invention will be described in detail with reference to the accompanying drawings.

2 and 3 are perspective views of an energy-saving carbon heating heating element according to the present invention. FIG. 2 shows a state in which a coupling cover 40 is coupled. In FIG. 3, (30) is coupled to the heating bar (10) through the connecting wire.

Referring to FIGS. 2 and 3, the energy-saving carbon heating heating element according to the present invention includes a heating bar 10 in the form of a bar including a heating core 11 containing carbon black, polyethylene, and polypropylene; A pair of connecting conductors 20 respectively coupled to both ends of the heating rod 10; A coupling piece (30) penetrating through each of the pair of connecting wires (20) and coupled to the heating rod (10); And a coupling cover (40) formed at a joining portion of the heating bar (10) and the pair of connecting wires (20).

FIG. 4 is a perspective view of a part of an energy-saving carbon heating heater according to the present invention. FIG. The heating bar 10 is formed in the form of a bar and includes a heating core 11 formed of a mixture of carbon black, polyethylene and polypropylene and a heating coil 12 surrounding the outer peripheral surface of the heating core 11 .

The pivoting core 11 is made of a mixture of carbon black, polyethylene, and polypropylene. The ratio of the carbon black to the polypropylene is 34 to 36 wt%, 29 to 31 wt% And 34 to 36 wt% of propylene. Such a piercing core 11 can be manufactured by mixing a composite resin of polyethylene and polypropylene with carbon black at 220 to 280 ° C using a blender and then extruding into a bar shape.

The pumping core 11 is heated by receiving electricity from the connecting wire 20. The pumping core 11 of the present invention has electrical characteristics suitable for being used as a heating element. This is discussed in detail below.

FIG. 5 is a graph showing a resistivity characteristic of a heating element using ceramics according to temperature, wherein Ba (BiNa) TiO 3 The graph of the resistivity according to the temperature of the ceramics is shown.

FIG. 6 is a graph showing a resistivity characteristic of an energy-saving carbon heating element according to the present invention with respect to temperature. FIG. 6 is a graph showing resistivity characteristics according to temperature of a pitting core 11 made of 35 wt% carbon black, 30 wt% polyethylene and 35 wt% A graph is shown. In order to measure the resistivity, the specimens were placed in a thermostatic chamber and measured at 0 ~ 80 ℃. The temperature after 80 ℃ was measured by the following equation after measuring the resistance with a multimeter in an electric furnace.

Figure 112015101853716-pat00001

Referring to FIG. 6, the resistivity value rises to a minimum at about 75 DEG C, and then rises sharply, reaching the maximum value at around 170 DEG C. [ The legal average heating temperature for each country is specified to be about 60 to 65 ° C, and the potholes 11 of the present invention are prepared by adjusting the proportions of carbon black, polyethylene and polypropylene for use in heating. As shown in FIG. 6, since the resistivity value of the pumping core 11 of the present invention is close to the minimum value at around 60 to 65 ° C, it can be confirmed that the pumping core 11 of the present invention is suitable for use as a heating element have.

Additionally, the reason that the resistivity increases with increasing temperature is that the carbon black lattice diffuses into the polymer matrix to form a conductive network, which leads to good electricity. Also, as the temperature continuously increases, the intergranular distance of the carbon black lattice becomes distant due to the thermal expansion, and the resistivity is increased, thereby decreasing the electric conductivity.

FIG. 7 is a graph showing the temperature and current characteristics of the energy-saving carbon heating element according to the present invention over time (black, temperature, blue) ) Were measured.

Referring to FIG. 7, it can be seen that a steep temperature rise is observed until 10 minutes after the input voltage is applied, but it is maintained at a constant temperature between 55 and 60 ° C after 10 minutes. On the contrary, in the case of the current, a sudden drop in the amount of current is shown until 10 minutes after the input voltage is applied, but it is confirmed that the amount of current is maintained almost constant at around 8.5 mA after 10 minutes.

As can be seen from FIG. 7, since the pivoting core 11 according to the present invention maintains a constant temperature by itself, it is suitable for use as a heating element, and a device such as a thermistor for maintaining a separate temperature is not required The configuration of the heating element can be simplified.

The connecting wires 20 are coupled to both ends of the heating rod 10 to supply electricity to the heating rod 10. The connecting wire 20 includes a wire portion 21 formed by twisting a plurality of wires 21a; A first covering section (22) surrounding the outer peripheral surface of the wire section (21); And a second covering portion (23) surrounding the first covering portion (22). At this time, polyphosphorylenes and polyethylenes having excellent electrical insulation and excellent heat resistance can be used as the main components of the first covering portion 22 and the second covering portion 23.

8 is a perspective view of a coupling piece according to the present invention. A coupling piece (30) according to the present invention is a component that penetrates a connecting wire (20) and is combined with a carbon heating bar (10), comprising: a head part (31); And a body part 32 extending from the lower end of the head part 31. A cross groove 31a is formed on an upper surface of the head part 31 and a connecting piece 30 is formed by a tool such as a screwdriver It can be rotationally coupled.

The body portion 32 includes a first body portion 32a extending from a lower end of the head portion 31 and having an outer peripheral surface formed to be flat; And a second body portion 32b extending from the first body portion 32a and having a thread on an outer circumferential surface thereof. The length of the first body portion 32a is equal to the thickness of the connecting wire 20 .

In order to explain the effect of the coupling piece 30 having such a configuration, assuming that a general screw is first coupled, in the case of a general screw, since a screw thread is formed on the entire body part, a general screw passes through the connecting wire 20, There is a possibility that a screw thread exists in a portion contacting the connecting wire 20 when the wire 20 is coupled to the wire 10, and the wire 21 inside the connecting wire 20 may be damaged by such a screw.

However, since the energy-saving carbon heating heating element according to the present invention is formed flat without forming a thread on the first body portion 32a, the length of the first body portion 32a is equal to the thickness of the connecting conductor 20 It is possible to prevent the screw thread from contacting with the wire portion 21 inside the connecting wire 20 and prevent the wire portion 21 from being damaged by the screw thread.

The present invention can also be applied to a first drilling process for drilling the heating bar 10 using a drill before joining the joining piece 30, and a second drilling process for drilling the connecting wire 20 using an auger . That is, after the first drilling process and the second drilling process, the engaging pieces 30 are engaged.

Specifically, both ends of the heat generating bar 10 are drilled with a drill having a sectional area smaller than the cross sectional area of the second body portion 32b in the first drilling process. At this time, the depth of the hole to be drilled is preferably slightly smaller than the length of the second body portion 32b. The holes formed at both ends of the heating bar 10 formed in the first drilling process serve to guide the second body portion 32b when the coupling piece 30 is fastened.

In the second drilling process, the connecting conductor 20 is drilled using a drill having a cross-sectional area larger than the cross-sectional area of the second body portion 32b. The hole formed at this time has a cross-sectional area wider than the cross-sectional area of the second body portion 32b (because the hole is perforated by the drill having a cross-sectional area larger than the cross-sectional area of the second body portion 32b). Therefore, the second body portion 32b can be brought into the heating rod 10 without contacting the connecting conductor 20 when the connecting piece 30 is fastened. Since the second body portion 32b with the threaded portion does not contact the connecting conductor 20 during the fastening process of the coupling piece 30, the thread of the second body portion 32b breaks the wire portion 21 It can be prevented in advance.

In order to maintain the stability of the first and second drilling processes and the coupling, the cross-sectional area of the first body portion 32a is preferably equal to the cross-sectional area of the drill used in the second drilling process. That is, the cross-sectional area of the first body portion 32a is slightly larger than the cross-sectional area of the second body portion 32b, and the cross-sectional area of the first body portion 32a is formed in the connecting wire 20 in the second drilling process Sectional area of the hole.

The joining cover 40 is a component formed at the joining portion of the carbon heating bar 10 and the connecting wire 20. [ Polypropylene, polyethylenes, etc., which are excellent in electrical insulation and excellent in heat resistance, can be used as the main components of the coupling cover 40.

As described above, the energy-saving carbon heating heating element according to the present invention is a synthetic resin mixture of carbon black, polyethylene, and polypropylene. It has good electrical characteristics and can maintain a required temperature for heating by using less energy, It is not necessary to use a device for keeping the constant temperature separately. Therefore, the configuration is simplified, and the manufacturing process and manufacturing cost are reduced.

10: heating rod 11:
12: heat shield 20: connecting wire
21: wire section 21a: wire
22: first covering portion 23: second covering portion
30: coupling piece 31: head part
31a: Cross groove 32: Body part
32a: first body part 32b: second body part
40: coupling cover

Claims (4)

(10) in the form of a bar including a pumping core (11) containing 34 to 36% by weight of carbon black, 29 to 31% by weight of polyethylene and 34 to 36% by weight of polypropylene;
A pair of connecting conductors 20 respectively coupled to both ends of the heating bar 10;
A coupling piece (30) penetrating through each of the pair of connecting wires (20) and coupled to the heating rod (10); And
And a coupling cover (40) formed at a coupling portion between the heating bar (10) and the pair of connection lead wires (20)
The coupling piece 30 includes a head 31; And a body portion 32 extending from the lower end of the head portion 31,
The body portion (32)
A first body portion 32a extending from a lower end of the head portion 31 and having an outer circumferential surface formed flat; And
And a second body portion 32b extending from a lower end of the first body portion 32a and having a thread on an outer circumferential surface thereof,
The length of the first body portion 32a is formed to be equal to the thickness of the connecting conductor 20,
And the thickness of the first body part (32a) is thicker than the thickness of the second body part (32b).
The method according to claim 1,
The heating rod (10)
And a heating cover (12) surrounding the outer circumferential surface of the heating core (11)
Each of the pair of connecting leads 20
A first covering portion 22 surrounding the outer circumferential surface of the wire portion 21 and a second covering portion 22 surrounding the first covering portion 22, And an abdomen (23).
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KR1020150146282A 2015-10-20 2015-10-20 Energy saving carbon heating elements KR101619205B1 (en)

Priority Applications (2)

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KR1020150146282A KR101619205B1 (en) 2015-10-20 2015-10-20 Energy saving carbon heating elements
CN201621115477.5U CN206413209U (en) 2015-10-20 2016-10-12 Carbon electro-heat equipment

Applications Claiming Priority (1)

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KR1020150146282A KR101619205B1 (en) 2015-10-20 2015-10-20 Energy saving carbon heating elements

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KR101619205B1 true KR101619205B1 (en) 2016-05-10

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102013779B1 (en) * 2019-03-18 2019-08-23 주식회사 익스텐더 Apparatus for assembling heater

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101174448B1 (en) * 2010-06-08 2012-08-16 이문순 Heating wire and thereof producing method

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101174448B1 (en) * 2010-06-08 2012-08-16 이문순 Heating wire and thereof producing method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102013779B1 (en) * 2019-03-18 2019-08-23 주식회사 익스텐더 Apparatus for assembling heater

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