KR20100003848U - electric heater - Google Patents

electric heater Download PDF

Info

Publication number
KR20100003848U
KR20100003848U KR2020080013228U KR20080013228U KR20100003848U KR 20100003848 U KR20100003848 U KR 20100003848U KR 2020080013228 U KR2020080013228 U KR 2020080013228U KR 20080013228 U KR20080013228 U KR 20080013228U KR 20100003848 U KR20100003848 U KR 20100003848U
Authority
KR
South Korea
Prior art keywords
ceramic pipe
electric heater
wire
heater
heating
Prior art date
Application number
KR2020080013228U
Other languages
Korean (ko)
Inventor
박찬왕
손인영
Original Assignee
박찬왕
손인영
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 박찬왕, 손인영 filed Critical 박찬왕
Priority to KR2020080013228U priority Critical patent/KR20100003848U/en
Publication of KR20100003848U publication Critical patent/KR20100003848U/en

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
    • F24H1/18—Water-storage heaters
    • F24H1/20—Water-storage heaters with immersed heating elements, e.g. electric elements or furnace tubes
    • F24H1/201—Water-storage heaters with immersed heating elements, e.g. electric elements or furnace tubes using electric energy supply
    • F24H1/202—Water-storage heaters with immersed heating elements, e.g. electric elements or furnace tubes using electric energy supply with resistances
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H9/00—Details
    • F24H9/18—Arrangement or mounting of grates or heating means
    • F24H9/1809—Arrangement or mounting of grates or heating means for water heaters
    • F24H9/1818—Arrangement or mounting of electric heating means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H2250/00—Electrical heat generating means
    • F24H2250/02—Resistances

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Resistance Heating (AREA)

Abstract

본 고안은 전기히터에 관한 것으로 전기온수기나 전기온풍기에 사용되는 전기히터에 관한 것이다.The present invention relates to an electric heater, and relates to an electric heater used for an electric water heater or an electric heater.

본 고안은 전열선을 절연체인 세라믹파이프 외주면에 나선형으로 감아 발열체를 형성하고 이를 온풍기나 온수기의 온수가열 탱크에 용이하게 설치할 수 있는 발열체 고정수단을 제공하는 것이다.The present invention is to provide a heating element fixing means that spirally wound the heating wire to the outer peripheral surface of the ceramic pipe which is an insulator and can be easily installed in the hot water tank of the hot air heater or water heater.

본 고안은 다음과 같은 구조를 갖는다.The present invention has the following structure.

본 고안은 전열선(11)을 절연체인 세라믹파이프(12) 외주면에 나선형으로 감아 발열체를 조성하며,The present invention spirally wound the heating wire 11 to the outer peripheral surface of the ceramic pipe 12 as an insulator to form a heating element,

상기 세라믹파이프(12) 일측에 세라믹파이프(12)를 지지고정하는 지지구(13)를 가지며, 상기 지지구(13)는 다수개의 연결대(14)로 고정판(15)과 연결되며,One side of the ceramic pipe 12 has a support 13 for supporting and fixing the ceramic pipe 12, the support 13 is connected to the fixing plate 15 by a plurality of connecting rods 14,

상기 세라믹파이프(12) 외주면에 나선형으로 감은 전열선(11)의 양단은 세라믹파이프(12) 내측으로 삽입한 연결선(16)과 결합되며,Both ends of the heating wire 11 spirally wound around the outer circumferential surface of the ceramic pipe 12 are combined with the connecting line 16 inserted into the ceramic pipe 12.

상기 연결선(16)에는 다수개의 세라믹파이프나 석면파이프와 같은 절연체(17)를 덧씌우며, 상기 연결선(16)의 단부는 고정판(15) 밖으로 돌출된 후 전선고정단자나 와셔나 너트와 같은 전선고정수단(18)을 갖도록 한 것이다.The connecting wire 16 is overlaid with an insulator 17 such as a plurality of ceramic pipes or asbestos pipes, and the ends of the connecting wires 16 protrude out of the fixing plate 15, and then fix the wires such as wire fixing terminals or washers or nuts. It is intended to have a means (18).

전기히터, 온수기 온풍기, 전기난방기  Electric Heater, Water Heater Warmer, Electric Heater

Description

전기히터{electric heater}Electric heater

본 고안은 전기히터에 관한 것으로 전기온수기나 전기온풍기에 사용되는 전기히터에 관한 것이다.The present invention relates to an electric heater, and relates to an electric heater used for an electric water heater or an electric heater.

일반적으로 전기히터는 전기저항이 큰 전열선에 전기를 가해 열을 발생하는 발열장치로 온수기, 급탕기, 열풍기, 난로, 난방기, 가열기와 같은 산업용이나 가정용 가열장치의 발열수단으로 사용되어 진다.In general, an electric heater is a heating device that generates heat by applying electricity to a heating wire having a large electrical resistance, and is used as a heating means of an industrial or household heating device such as a water heater, a hot water heater, a hot air fan, a stove, a heater, a heater.

이와 같은 가열장치에 사용되는 다양한 전기히터에 있어서 본 고안은 공기를 가열하여 열풍을 만들거나, 물을 가열하여 온수를 만드는 전기온수기(급탕기)용이나, 전기온풍기용의 발열 수단으로 사용되는 전기히터를 제공하는 것이다.In the various electric heaters used in such a heating apparatus, the present invention is used for electric water heaters (hot water heaters) for heating air or hot water for heating water, or electric heaters used as a heating means for electric heaters. To provide.

각종 가열장치의 발열수단으로 사용되는 전기히터는 가열장치의 용량이나, 용도, 규격에 맞는 전기히터를 사용하게 되므로, 전기히터의 형상 및 구조는 아주 다양하게 된다.The electric heater used as the heating means of the various heating apparatus is used because the electric heater according to the capacity of the heating apparatus, the use, the standard, the shape and structure of the electric heater is very diverse.

또한 전기히터에 사용되는 전열선의 종류도 다양한 형태 및 다양한 규격을 갖게 된다.In addition, the type of heating wire used in the electric heater will have a variety of forms and specifications.

즉 전열선의 형상만으로도, 전열선을 코일형태로 감은 것이 있으며, 전열선 을 절연체(산화마그네슘)로 코팅하고, 그 위에 금속관을 덧씌워 전열선이 직접 공기와 닿지 않도록 한 전열선을 볼 수 있다.In other words, even in the shape of the heating wire, the heating wire is wound in the form of a coil, and the heating wire is coated with an insulator (magnesium oxide), and the heating wire is covered with a metal tube thereon so that the heating wire does not directly contact the air.

또한 상기 전열선으로는 통칭 니크롬선이라고 호칭되는 니켈, 크롬 합금선과 니켈과 철을 혼합한 철 크롬선, 크롬 또는 니켈과 구리를 혼합한 동크롬선, 동니켈선 등을 볼 수 있으며, 이외에 텅스텐, 이리듐, 레늄 등의 희귀 원소를 혼합하여 고온을 발생하는 열선을 볼 수 있다.In addition, as the heating wire, nickel, chromium alloy wire, commonly referred to as nichrome wire, and iron chromium wire mixed with nickel and iron, copper chromium wire mixed with chromium or nickel and copper, copper nickel wire, and the like, in addition to tungsten, You can see the hot wire which generate | occur | produces high temperature by mixing rare elements, such as iridium and a rhenium.

본 고안은 상기에서 볼 수 있는 통상의 전열선을 이용한 전기히터에 관한 것으로 특히 전기온풍기나, 전기온수기(급탕기)용으로 사용하는 전기히터를 제공하는 것이다.The present invention relates to an electric heater using a common heating wire as seen above, and particularly to provide an electric heater for use in an electric hot air heater or an electric water heater (hot water heater).

본 고안은 전열선을 절연체인 세라믹파이프 외주면에 나선형으로 감아 발열체를 형성하고 이를 온풍기나 온수기의 온수가열 탱크에 용이하게 설치할 수 있는 발열체 고정수단을 제공하는 것이다.The present invention is to provide a heating element fixing means that spirally wound the heating wire to the outer peripheral surface of the ceramic pipe which is an insulator and can be easily installed in the hot water tank of the hot air heater or water heater.

특히 상기 발열체 부착 및 고정수단은 그 구조가 간단하여 제조하고자 하는 온풍기나, 온수기의 온수탱크에 용이하게 부착 및 고정하는 수단을 제공하는 것이다.In particular, the heating element attaching and fixing means is to provide a means for easily attaching and fixing to the warm air to be manufactured, the hot water tank of the water heater.

본 고안은 전열선(11)을 절연체인 세라믹파이프(12) 외주면에 나선형으로 감아 발열체를 조성하며,The present invention spirally wound the heating wire 11 to the outer peripheral surface of the ceramic pipe 12 as an insulator to form a heating element,

상기 세라믹파이프(12) 일측에 세라믹파이프(12)를 지지고정하는 지지구(13)를 가지며, 상기 지지구(13)는 다수개의 연결대(14)로 고정판(15)과 연결되며,One side of the ceramic pipe 12 has a support 13 for supporting and fixing the ceramic pipe 12, the support 13 is connected to the fixing plate 15 by a plurality of connecting rods 14,

상기 세라믹파이프(12) 외주면에 나선형으로 감은 전열선(11)의 양단은 세라믹파이프(12) 내측으로 삽입한 연결선(16)과 결합되며,Both ends of the heating wire 11 spirally wound around the outer circumferential surface of the ceramic pipe 12 are combined with the connecting line 16 inserted into the ceramic pipe 12.

상기 연결선(16)에는 다수개의 세라믹파이프나 석면파이프와 같은 절연체(17)를 덧씌우며, 상기 연결선(16)의 단부는 고정판(15) 밖으로 돌출된 후 전선고정단자나 와셔나 너트와 같은 전선고정수단(18)을 갖도록 한 것이다.The connecting wire 16 is overlaid with an insulator 17 such as a plurality of ceramic pipes or asbestos pipes, and the ends of the connecting wires 16 protrude out of the fixing plate 15, and then fix the wires such as wire fixing terminals or washers or nuts. It is intended to have a means (18).

상기와 같은 구조를 갖는 본 고안인 전기히터는 그 자체로도 사용이 가능하지만 상기 발열체를 원통형금속관(21)으로 덧씌우고,The electric heater of the present invention having the structure as described above can be used as such, but the heating element is covered with a cylindrical metal tube 21,

상기 원통형금속관(21)은 고정판(15)에 볼트와 너트로 고정하여 전기히터를 구성할 수 있다.The cylindrical metal tube 21 may be fixed to the fixing plate 15 by a bolt and a nut to configure an electric heater.

또한 상기 발열체를 덧씌운 원통형금속관(21) 내측에 다수개의 금속재파이프(22)를 부착하여, 전열선(11)으로부터 발열된 열을 원통형금속관(21)으로 신속하게 전달하게 본 고안을 구성할 수 있다.In addition, by attaching a plurality of metal pipes 22 inside the cylindrical metal tube 21 overlaid with the heating element, the present invention can be configured to quickly transfer the heat generated from the heating wire 11 to the cylindrical metal tube 21. .

또한 상기 세라믹파이프(12) 외주면에 나선형으로 감은 전열선(11)이 공기와 접촉하여 산화가 되는 것을 방지하기 위하여 공기차단재를 도포하게 된다.In addition, in order to prevent the heating wire 11 spirally wound on the outer circumferential surface of the ceramic pipe 12 in contact with air, an air barrier material is applied.

이와 같은 본 고안은 온풍기에 장착되고, 바람을 가해 온풍을 제공하는 전기히터로 사용하거나, 온수탱크 내측에 원통형 금속관(21)과 같이 설치하여 온수를 제공하는 온수기용 전기히터로 사용하게 되는 것이다.The present invention is to be used as an electric heater to be mounted on a hot air heater, to provide a warm air by applying a wind, or to be installed as a cylindrical metal tube 21 inside the hot water tank to provide hot water.

상기와 같은 구조를 갖는 전기히터는 전열선(11)을 나선형으로 감은 세라믹파이프(12)를 지지구(13)로 고정하며 지지구(13)에 일체로 고정시킨 다수개(2-4개)의 연결대(14)를 고정판(15)에 고정함으로 인해 세라믹파이프(12)에 감은 전열선(11)으로 된 발열체는 고정판(15)에 고정되어지며, 상기 고정판(15)을 제작하고자 하는 전열기구에 부착하여 전열기구를 완성하게 되는 것이다.The electric heater having the structure as described above is a plurality of (2-4) fixed to the ceramic pipe 12 wound around the heating wire 11 with a support 13 and integrally fixed to the support 13 By heating the connecting table 14 to the fixing plate 15, the heating element made of the heating wire 11 wound on the ceramic pipe 12 is fixed to the fixing plate 15, and is attached to the heating device to manufacture the fixing plate 15 To complete the heating device.

상기에 있어, 공기를 가열하는 온풍기 또는 난방기용으로 사용하고자 할 경우, 고정판에 송풍팬을 설치하여 온풍기 또는 난방기에 구성하게 되며, 본 고안을 온수기에 사용하고자 할 경우, 전열선(11)을 나선형으로 감은 세라믹파이프(12) 외측에 원통형금속관(21)을 덧씌워 사용하게 된다.In the above, if you want to use for a heater or a heater for heating the air, install a blower fan in the fixed plate to configure the heater or heater, if you want to use the present invention in the water heater, heating wire 11 in a spiral Persimmon is used to cover the cylindrical metal pipe 21 outside the ceramic pipe (12).

특히 본 고안을 온수기 또는 온수탱크에 삽입하여, 온수기용으로 사용할 경우, 원통형금속관(21) 내측에 다수개의 금속재파이프(22)를 부착할 경우, 전열선(11)으로부터 발열되는 열기가, 원통형금속관(21)으로 신속하게 전달되어, 빠른 시간에 물을 가열시킬 수 있는 효과를 갖게 된다.In particular, when the present invention is inserted into a water heater or a hot water tank and used for a water heater, when a plurality of metal pipes 22 are attached inside the cylindrical metal pipe 21, the heat generated from the heating wire 11 is a cylindrical metal pipe ( 21) is quickly delivered, the water can be heated in a short time.

본 고안은 통상의 전열선(11)을 절연체인 세라믹파이프(12) 외주면에 나선형으로 감아 발열체를 구성하고, 상기 세라믹파이프(12) 일측에 지지구(13)를 결합고정하며, 상기 지지구(13)와 고정판(15)을 다수개(2∼4개)의 연결대(14)로 고정하여, 전열선(11)을 감은 세라믹파이프(12)를 고정판(15)에 고정토록 한 것이다.The present invention constitutes a heating element by spirally winding a conventional heating wire 11 to the outer peripheral surface of the ceramic pipe 12 which is an insulator, fixing the support 13 to one side of the ceramic pipe 12, and the support 13 ) And the fixing plate 15 are fixed to the fixing plate 15 by fixing the plurality of (2-4) connecting rods 14 to the ceramic pipe 12 wound around the heating wire 11.

상기 전열선(11)의 양단부는 세라믹파이프(12) 내측에 삽입되는 연결선(16)에 각각 결합되며, 연결선(16)에는 절연체(17)가 덧씌워진다. 상기 절연체(17)는 석면파이프나, 세라믹파이프 등을 이용하며, 상기 연결선(16)은 나사산으로 된 전산볼트나, 기타 금속선을 사용하게 된다.Both ends of the heating wire 11 are respectively coupled to the connecting line 16 inserted into the ceramic pipe 12, and the connecting line 16 is covered with an insulator 17. The insulator 17 uses asbestos pipes, ceramic pipes, and the like, and the connecting wires 16 use threaded computer bolts or other metal wires.

이와 같은 연결선(16)의 단부는 고정판(15) 밖으로 돌출된 후 전선과 결합하는 전선고정수단(18)을 갖게 되며, 상기 전선고정수단으로는 복수개의 너트 또는 전선고정단자 등을 사용하게 된다.The end of the connection line 16 has a wire fixing means 18 which protrudes out of the fixing plate 15 and then couples with the wire, and a plurality of nuts or wire fixing terminals are used as the wire fixing means.

이와 같은 구조로 된 전기히터는 고정판(15)을 이용하여 제조하고자 하는 전열기구 또는 전열장치에 본 고안을 부착하게 되며, 본 고안을 온풍(열풍)기나, 난방기로 사용할 경우, 고정판 일측에 송풍기나, 송풍관을 설치하여, 전열기구를 완성하게 되며,The electric heater having such a structure attaches the present invention to a heating device or a heating device to be manufactured by using the fixed plate 15, and when the present invention is used as a hot air (hot air) machine or a heater, a blower or By installing a blower pipe to complete the heating device,

본 고안을 온수기 또는 급탕기에 사용하고자 할 경우, 원통형금속관(21)을 덧씌워, 물탱크에 설치하게 되는 것이다.When the present invention is to be used in a water heater or a hot water heater, the cylindrical metal pipe (21) is to be installed in the water tank.

특히 본 고안을 온수기나 급탕기로 사용할 경우 원통형금속관(21) 내주면에 다수개의 금속재파이프(22)를 설치할 경우 전열선(11)으로부터 발생되는 열을 빠르게 원통형금속관(21)으로 전달하여, 빠르게 물을 가열할 수 있게 된다.In particular, in the case of using the present invention as a water heater or a hot water heater, when a plurality of metal pipes 22 are installed on the inner circumferential surface of the cylindrical metal tube 21, heat generated from the heating wire 11 is quickly transferred to the cylindrical metal tube 21, thereby rapidly heating the water. You can do it.

도1 본 고안의 사시도1 is a perspective view of the present invention

도2 본 고안의 단면도2 is a cross-sectional view of the present invention

도3 본 고안의 타 실시 예의 분해 사시도3 is an exploded perspective view of another embodiment of the present invention

도4 본 고안의 타 실시 예의 사시도4 is a perspective view of another embodiment of the present invention

도5 본 고안의 타 실시 예의 단면도5 is a cross-sectional view of another embodiment of the present invention

도6 도5의 A-A선 단면도Fig. 6 A-A cross sectional view of Fig. 5

도7 도5의 B-B선 단면도Fig. 7 B-B cross section

＜도면의 각 주요부분에 대한 부호설명＞<Code description of each main part of drawing>

11 전열선 12 세라믹파이프11 Heating cable 12 Ceramic pipe

13 지지구 14 연결대13 Support 14 Connecting Rod

15 고정판 16 연결선15 fixing plate 16 connecting line

17 절연체 18 전선고정수단17 insulator 18 wire fixing means

21 원통형금속관 22 금속재파이프21 Cylindrical metal pipe 22 Metal pipe

Claims (3)

전열선(11)을 절연체인 세라믹파이프(12) 외주면에 나선형으로 감아 발열체를 조성하며,The heating wire 11 is spirally wound around the outer circumferential surface of the ceramic pipe 12 as an insulator to form a heating element, 상기 세라믹파이프(12) 일측에 세라믹파이프(12)를 지지고정하는 지지구(13)를 가지며, 상기 지지구(13)는 다수개의 연결대(14)로 고정판(15)과 연결되며,One side of the ceramic pipe 12 has a support 13 for supporting and fixing the ceramic pipe 12, the support 13 is connected to the fixing plate 15 by a plurality of connecting rods 14, 상기 세라믹파이프(12) 외주면에 나선형으로 감은 전열선(11)의 양단은 세라믹파이프(12) 내측으로 삽입한 연결선(16)과 결합되며,Both ends of the heating wire 11 spirally wound around the outer circumferential surface of the ceramic pipe 12 are combined with the connecting line 16 inserted into the ceramic pipe 12. 상기 연결선(16)에는 다수개의 세라믹파이프나 석면파이프와 같은 절연체(17)를 덧씌우며, 상기 연결선(16)의 단부는 고정판(15) 밖으로 돌출된 후 전선고정단자나 와셔나 너트와 같은 전선고정수단(18)을 갖도록 한 것을 특징으로 하는 전기히터.The connecting wire 16 is overlaid with an insulator 17 such as a plurality of ceramic pipes or asbestos pipes, and the ends of the connecting wires 16 protrude out of the fixing plate 15, and then fix the wires such as wire fixing terminals or washers or nuts. An electric heater characterized by having a means (18). 제1항에 있어서, 발열체를 원통형금속관(21)으로 덧씌우고,The heating element is covered with a cylindrical metal tube 21, 상기 원통형금속관(21)은 고정판(15)에 볼트와 너트로 고정하는 것을 특징으로 하는 전기히터.The cylindrical metal tube 21 is an electric heater, characterized in that fixed to the fixing plate 15 with a bolt and a nut. 제2항에 있어서, 원통형금속관(21) 내측에 다수개의 금속재파이프(22)를 부착하여, 전열선(11)으로부터 발열된 열을 원통형금속관(21)으로 신속하게 전달토록 한 것을 특징으로 하는 전기히터.The electric heater according to claim 2, wherein a plurality of metal pipes (22) are attached inside the cylindrical metal pipe (21) to quickly transfer heat generated from the heating wire (11) to the cylindrical metal pipe (21). .
KR2020080013228U 2008-10-02 2008-10-02 electric heater KR20100003848U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR2020080013228U KR20100003848U (en) 2008-10-02 2008-10-02 electric heater

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR2020080013228U KR20100003848U (en) 2008-10-02 2008-10-02 electric heater

Publications (1)

Publication Number Publication Date
KR20100003848U true KR20100003848U (en) 2010-04-12

Family

ID=44449941

Family Applications (1)

Application Number Title Priority Date Filing Date
KR2020080013228U KR20100003848U (en) 2008-10-02 2008-10-02 electric heater

Country Status (1)

Country Link
KR (1) KR20100003848U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102927678A (en) * 2011-08-09 2013-02-13 田有舟 Instant heating type rapid heating device
KR101646988B1 (en) * 2015-11-20 2016-08-11 한국지질자원연구원 Headspace methane extraction residue system
CN110230837A (en) * 2019-06-24 2019-09-13 江苏阿贝罗智能家居有限公司 Case is warmed up in electric heating

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102927678A (en) * 2011-08-09 2013-02-13 田有舟 Instant heating type rapid heating device
KR101646988B1 (en) * 2015-11-20 2016-08-11 한국지질자원연구원 Headspace methane extraction residue system
CN110230837A (en) * 2019-06-24 2019-09-13 江苏阿贝罗智能家居有限公司 Case is warmed up in electric heating

Similar Documents

Publication Publication Date Title
US20020108943A1 (en) Electrical heater unit and heater
EP2667402B1 (en) Concentric coil infrared emitter lamp
TWI612177B (en) heating equipment
EP2430879B1 (en) Improved methods of heating fluids
KR20100003848U (en) electric heater
US20040146289A1 (en) Electric water heater, liquid heater, steam generator
JP4118300B2 (en) Open coil electric resistance heater using twisted resistance wire and method for manufacturing the same
CN104488351A (en) Radiator element having multiple heating zones
US2594101A (en) Portable fan-type air heater
TWI475173B (en) Pipe heating device
US20040256375A1 (en) Electrical water heating device with large contact surface
RU160732U1 (en) HEAT FAN (HEAT GUN) WITH ELECTRIC HEATING NOZZLES THROUGH CYLINDER-FORM
US2459816A (en) Water heater conversion unit
CN210641091U (en) Heating device
CN210899660U (en) MCH ceramic electric heater
US2211380A (en) Electric heater for liquids
US8107802B2 (en) Tankless electric water heater with efficient thermal transfer
JP2016031885A (en) Amorphous metal alloy electric heater system
CN216330911U (en) Air heater for rapidly heating printing ink
CN108770102A (en) A kind of heating tube
CN219960866U (en) Cast aluminum heating device
US1754580A (en) Electric water heater
US846853A (en) Electric heater.
US3119923A (en) Electric stove
CN104411024B (en) A kind of miniature heater

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E601 Decision to refuse application