CN103874252A - Ceramic electric heater for water tank - Google Patents
Ceramic electric heater for water tank Download PDFInfo
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- CN103874252A CN103874252A CN201410105272.8A CN201410105272A CN103874252A CN 103874252 A CN103874252 A CN 103874252A CN 201410105272 A CN201410105272 A CN 201410105272A CN 103874252 A CN103874252 A CN 103874252A
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- electric heater
- water tank
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- ceramic electric
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Abstract
The invention provides a ceramic electric heater for a water tank. The ceramic electric heater solves the problems that because heat loads borne by a prior metal electric heating pipe are small, the metal electric heating pipe is prone to electric conduction and leads to dangers. The ceramic electric heater for the water tank comprises a take-up shell, an electric heating element is a ceramic thermal conductor and is inserted into the take-up shell in a stretching mode, two contacts connected with wires are arranged at the insertion end of the electric heating element, one wire is connected with a temperature switch in series, the other wire is connected with a temperature fuse in series, and the wires stretch out of the take-up shell in a penetrating mode. Because the ceramic electric heating element made of silicon nitride serves as a heating component and is combined with an over-temperature protection device, the ceramic electric heater has the advantages of being safe, reliable, high in thermal efficiency, even in water temperature, small in size, resistant to corrosion, long in service life and the like, and is an optimal heat source of a new generation of safe and energy-saving hot water solutions.
Description
Technical field
The invention belongs to field of mechanical technique, relate to a kind of electric heating device, particularly a kind of water tank ceramic electric heater.
Background technology
On market, widely used water tank is mainly tubular metal electric heater with electric heater now.Tubular metal electric heater is filled heat conductive insulating powder between conductor wire and metal shell, and owing to there is space between powder, its heat conductivility is limited, so the heat load that can tolerate is lower, electrothermal tube size is very large, and metal surface appearance corrosion-vulnerable, when serious, can cause Danger Electric shock risk.On market, also some electric heater plates antirust coat at metal tube surface; can stop to a certain extent corrosion, protection electrothermal tube, but because electrothermal tube is operated in the environment colding and heat succeed each other; long-term expanding with heat and contract with cold can cause coating shedding, threatens safe hidden danger therefore still exist.
Summary of the invention
The object of the invention is to have the problems referred to above for existing technology, proposed a kind of ceramic electrothermal element that adopts silicon nitride, and in conjunction with overtemperature protection device, comprehensively promoted the water tank ceramic electric heater of heating efficiency and insulation safety.
Object of the present invention can realize by following technical proposal: a kind of water tank ceramic electric heater, comprise take-up housing, on described take-up housing, insert and stretch electrical heating elements, described electrical heating elements is ceramic heat conductor, in the insertion end of described electrical heating elements, there are two contacts, on described contact, connect and establish conductor wire, and be connected in series temperature switch on a conductor wire, on another root conductor wire, be connected in series Thermal Cutoffs, the described conductor wire above-mentioned take-up housing that stretches through out.
This water tank is with in ceramic electric heater, the combined effect formation of temperature switch and Thermal Cutoffs overtemperature protection device, wherein when temperature switch normal temperature in conducting state, and Thermal Cutoffs is attached on the inwall of take-up housing.Ceramic heat conductor specifically adopts silicon nitride material, and its heating power is 400W～10KW.Using the quantity of the electrical heating elements of silicon nitride ceramics to be generally 1, can be also 2～4 parallel connections.The nominal escape temperature of temperature switch is 60～95 ℃.The nominal fusing-off temperature of Thermal Cutoffs is 90～200 ℃.Between electrical heating elements and take-up housing, by sealing ring and refractory seals glue sealing and fixing, also can only use wherein a kind of mode seal and fix, wherein sealing ring is compressed by stator.
With in ceramic electric heater, also lay a conductor wire at above-mentioned water tank in described take-up housing, one end of this conductor wire is positioned on the inwall of take-up housing, the other end take-up housing that stretches through out.
At above-mentioned water tank, with in ceramic electric heater, described electrical heating elements is slice shape, and the thickness of slice shape is 2.5 to 5.5mm.
At above-mentioned water tank, with in ceramic electric heater, described electrical heating elements is cylindrical shape, and the diameter of cylindrical shape is less than or equal to 10mm.
At above-mentioned water tank, with in ceramic electric heater, described electrical heating elements is oval column, and the major axis of oval column is less than or equal to 10mm.
At above-mentioned water tank, with in ceramic electric heater, described take-up housing comprises the enclosed seat and the bonnet that are interlocked, and the top of described enclosed seat is offered to insert and stretched mouth, and line outlet is offered in the bottom of described bonnet.The material of making enclosed seat is the combination that one or more materials in following material are made parts: the metals such as copper, stainless steel, aluminium, titanium and the alloy that contains these metals, nylon, pottery and other resistant to elevated temperatures materials.The slotting mouth of stretching at enclosed seat top is for installing and fixing electrical heating elements.The line outlet of bonnet bottom is for passing through conductor wire boundling.
With in ceramic electric heater, on the line outlet of described bonnet bottom, install sealing cap at above-mentioned water tank, sealing ring and/or refractory seals glue are established in filling out in interior week of described sealing cap.Compressed by stator for the sealing ring sealing.Sealing cap can be realized the effect of fastening conductor wire boundling simultaneously.
With in ceramic electric heater, on the inwall of described enclosed seat, be arranged with holding tank at above-mentioned water tank, described temperature switch is embedded in holding tank, and fills heat-conducting glue or thermal grease conduction between temperature switch and holding tank.Temperature switch is close to the inner surface of enclosed seat, carries out space filling by heat-conducting glue or thermal grease conduction, and temperature switch can have auxiliary stator to fix.The end face of enclosed seat can arrange through hole, and it is for the blind pipe of laying temperature switch is installed, and temperature switch is specifically placed in the blind pipe stretching in heated liquid, and Thermal Cutoffs is also placed in the blind pipe stretching in heated liquid.
At above-mentioned water tank, with in ceramic electric heater, the interface of described enclosed seat arranges snap ring, and the interface of described bonnet arranges draw-in groove, and described snap ring forms buckle with draw-in groove and is connected.This kind of snap-fitted belongs to plug type enclosed seat, and the profile of plug type enclosed seat is divided into plug portion and standing part.Wherein plug portion is filled in water tank, and the degree of depth that standing part control stopper is filled in.The external diameter of plug portion is generally 47mm or 58mm, but is not limited to this two kinds of sizes.The length of plug portion, also can be according to the size customization of sealing ring and water tank conventionally between 10mm～30mm, if can be firm fixing.The outer wall of plug portion can be smooth surface, can be also rough surface, or has the project organization of certain groove or fin, makes thus to install more firm.
At above-mentioned water tank, with in ceramic electric heater, on the interface outer wall of described enclosed seat, merit is established external screw thread, and on the interface inwall of described bonnet, merit is established internal thread, and enclosed seat forms and is threaded with bonnet.This kind of Screw assembly belongs to flange-type enclosed seat, and with the flange-type enclosed seat of gas thread, its gas thread specification comprises 3/4 cun, and 1 cun, 1.5 cun and 2 cun can be also other made in U.S.A, made in Germany or other specification screw threads.
Compared with prior art, this water tank adopts the ceramic electrothermal element of silicon nitride as heater block with ceramic electric heater, in conjunction with overtemperature protection device, is encapsulated in easy-to-install stopper or the flange with gas thread, can facilitate and firmly be arranged on water tank.And the silicon nitride heat shock resistance of high compact high-strength degree is functional, and during for heating water, the power density of electric heating element can reach 70W/cm
2.Therefore adopt the electric heater of silicon-nitride electric heating element to have safe and reliable, the heat efficiency is high, even water temperature, and the feature such as volume is little, corrosion-resistant, and the life-span is long, is the preferred heating source of safety and energy-saving hot water solution of new generation.
Accompanying drawing explanation
Fig. 1 is the cross-sectional view of the embodiment mono-of this water tank ceramic electric heater.
Fig. 2 is the cross-sectional view of the embodiment bis-of this water tank ceramic electric heater.
In figure, 1, electrical heating elements; 2, temperature switch; 3, Thermal Cutoffs; 4, enclosed seat; 5, bonnet; 6, sealing cap.
Embodiment
Be below specific embodiments of the invention by reference to the accompanying drawings, technical scheme of the present invention is further described, but the present invention be not limited to these embodiment.
Embodiment mono-
As shown in Figure 1, this water tank comprises take-up housing with ceramic electric heater, on take-up housing, inserts and stretches electrical heating elements 1, and this electrical heating elements 1 is ceramic heat conductor, and ceramic heat conductor specifically adopts silicon nitride material, and its heating power is 400W～10KW.Using the quantity of the electrical heating elements 1 of silicon nitride ceramics to be generally 1, can be also 2～4 parallel connections.
The electrical heating elements 1 of the silicon nitride ceramics adopting is that conductor wire is encapsulated in fine and close silicon nitride ceramics, and silicon nitride ceramics is as heat-conducting layer, also as insulating barrier.Because insulation property and the heat conductivility of silicon nitride ceramics are good, and self can resist the corrosion of acid-base solution.
Take-up housing comprises the enclosed seat 4 and bonnet 5 that are interlocked, the material of making enclosed seat 4 is the combination that one or more materials in following material are made parts: the metals such as copper, stainless steel, aluminium, titanium and the alloy that contains these metals, nylon, pottery and other resistant to elevated temperatures materials.
The top of enclosed seat 4 is offered to insert and is stretched mouth, and this is inserted and stretches mouth for installing and fixing electrical heating elements 1.Electrical heating elements 1 and enclosed seat 4 slotting stretches between mouth by sealing ring and refractory seals glue sealing and fixing, also can only use wherein a kind of mode seal and fix, and wherein sealing ring is compressed by stator.In the insertion end of electrical heating elements 1, there are two contacts, on each contact, connect and establish conductor wire, and be connected in series temperature switch 2 on a conductor wire, on another root conductor wire, be connected in series Thermal Cutoffs 3.In take-up housing, also lay a conductor wire, one end of this conductor wire is positioned on the inwall of take-up housing, the other end take-up housing that stretches through out.Line outlet is offered in the bottom of bonnet 5, and it is for passing through conductor wire boundling.On the line outlet of bonnet 5 bottoms, install sealing cap 6, sealing ring and/or refractory seals glue are established in filling out in interior week of sealing cap 6.Compressed by stator for the sealing ring sealing.Sealing cap 6 can be realized the effect of fastening conductor wire boundling simultaneously.
On the inwall of enclosed seat 4, be arranged with holding tank, temperature switch 2 is embedded in holding tank, and fills heat-conducting glue or thermal grease conduction between temperature switch 2 and holding tank.Temperature switch 2 is close to the inner surface of enclosed seat 4, carries out space filling by heat-conducting glue or thermal grease conduction, and temperature switch 2 can have auxiliary stator to fix.The end face of enclosed seat 4 can arrange through hole, and it is for the blind pipe of laying temperature switch 2 is installed, and temperature switch 2 is specifically placed in the blind pipe stretching in heated liquid, and Thermal Cutoffs 3 is also placed in the blind pipe stretching in heated liquid.
The interface of enclosed seat 4 arranges snap ring, and the interface of bonnet 5 arranges draw-in groove, and snap ring is connected with draw-in groove formation buckle.This kind of snap-fitted belongs to plug type enclosed seat 4, and the profile of plug type enclosed seat 4 is divided into plug portion and standing part.Wherein plug portion is filled in water tank, and the degree of depth that standing part control stopper is filled in.The external diameter of plug portion is generally 47mm or 58mm, but is not limited to this two kinds of sizes.The length of plug portion, also can be according to the size customization of sealing ring and water tank conventionally between 10mm～30mm, if can be firm fixing.The outer wall of plug portion can be smooth surface, can be also rough surface, or has the project organization of certain groove or fin, makes thus to install more firm.
Embodiment bis-
As shown in Figure 2, the present embodiment is basic identical with structure and the principle of embodiment mono-, and different place is:
On the interface outer wall of enclosed seat 4, merit is established external screw thread, and on the interface inwall of bonnet 5, merit is established internal thread, and enclosed seat 4 forms and is threaded with bonnet 5.This kind of Screw assembly belongs to flange-type enclosed seat 4, and with the flange-type enclosed seat 4 of gas thread, its gas thread specification comprises 3/4 cun, and 1 cun, 1.5 cun and 2 cun.
This water tank adopts the ceramic electrothermal element of silicon nitride as heater block with ceramic electric heater, in conjunction with overtemperature protection device, is encapsulated in easy-to-install stopper or the flange with gas thread, can facilitate and firmly be arranged on water tank.And the silicon nitride heat shock resistance of high compact high-strength degree is functional, and during for heating water, the power density of electric heating element can reach 70W/cm
2.Therefore adopt the electric heater of the ripe element of silicon nitride electricity to have safe and reliable, the heat efficiency is high, even water temperature, and the feature such as volume is little, corrosion-resistant, and the life-span is long, is the preferred heating source of safety and energy-saving hot water solution of new generation.
Specific embodiment described herein is only to the explanation for example of the present invention's spirit.Those skilled in the art can make various modifications or supplement or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present invention or surmount the defined scope of appended claims.
Although more used electrical heating elements 1 herein; Temperature switch 2; Thermal Cutoffs 3; Enclosed seat 4; Bonnet 5; Sealing cap 6 terms such as grade, but do not get rid of the possibility that uses other term.Use these terms to be only used to describe more easily and explain essence of the present invention; They are construed to any additional restriction is all contrary with spirit of the present invention.
Claims (8)
1. a water tank ceramic electric heater, comprise take-up housing, it is characterized in that, on described take-up housing, insert and stretch electrical heating elements, described electrical heating elements is ceramic heat conductor, has two contacts in the insertion end of described electrical heating elements, on described contact, connect and establish conductor wire, and on a conductor wire, be connected in series temperature switch, on another root conductor wire, be connected in series Thermal Cutoffs, the described conductor wire above-mentioned take-up housing that stretches through out; In described take-up housing, also lay a conductor wire, one end of this conductor wire is positioned on the inwall of take-up housing, the other end take-up housing that stretches through out; Electrical heating elements is slice shape, and the thickness of slice shape is 2.5 to 5.5mm.
2. water tank ceramic electric heater according to claim 1, is characterized in that, described electrical heating elements is cylindrical shape, and the diameter of cylindrical shape is less than or equal to 10mm.
3. water tank ceramic electric heater according to claim 1, is characterized in that, described electrical heating elements is oval column, and the major axis of oval column is less than or equal to 10mm.
4. according to the water tank ceramic electric heater described in any one in claim 1, it is characterized in that, described take-up housing comprises the enclosed seat and the bonnet that are interlocked, and the top of described enclosed seat is offered to insert and stretched mouth, and line outlet is offered in the bottom of described bonnet.
5. water tank ceramic electric heater according to claim 4, is characterized in that, on the line outlet of described bonnet bottom, installs sealing cap, and sealing ring and/or refractory seals glue are established in filling out in interior week of described sealing cap.
6. water tank ceramic electric heater according to claim 4, is characterized in that, on the inwall of described enclosed seat, is arranged with holding tank, and described temperature switch is embedded in holding tank, and fills heat-conducting glue or thermal grease conduction between temperature switch and holding tank.
7. water tank ceramic electric heater according to claim 4, is characterized in that, the interface of described enclosed seat arranges snap ring, and the interface of described bonnet arranges draw-in groove, and described snap ring forms buckle with draw-in groove and is connected.
8. according to the water tank ceramic electric heater described in any one in claim 4, it is characterized in that, on the interface outer wall of described enclosed seat, merit is established external screw thread, and on the interface inwall of described bonnet, merit is established internal thread, and enclosed seat forms and is threaded with bonnet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410105272.8A CN103874252A (en) | 2014-03-20 | 2014-03-20 | Ceramic electric heater for water tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410105272.8A CN103874252A (en) | 2014-03-20 | 2014-03-20 | Ceramic electric heater for water tank |
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| Publication Number | Publication Date |
|---|---|
| CN103874252A true CN103874252A (en) | 2014-06-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410105272.8A Pending CN103874252A (en) | 2014-03-20 | 2014-03-20 | Ceramic electric heater for water tank |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109334390A (en) * | 2018-11-06 | 2019-02-15 | 海宁托博特种陶瓷制品有限公司 | New-energy automobile heating preheating device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2728156Y (en) * | 2004-07-07 | 2005-09-21 | 黄冠文 | Simple water heater |
| CN201341365Y (en) * | 2008-12-03 | 2009-11-11 | 英光股份有限公司 | Heating device for aquarium |
| CN202501612U (en) * | 2012-03-20 | 2012-10-24 | 林土 | Heater of electric heating faucet |
| CN203748034U (en) * | 2014-03-20 | 2014-07-30 | 海宁托博特种陶瓷制品有限公司 | Ceramic electric heater used for water tank |
-
2014
- 2014-03-20 CN CN201410105272.8A patent/CN103874252A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2728156Y (en) * | 2004-07-07 | 2005-09-21 | 黄冠文 | Simple water heater |
| CN201341365Y (en) * | 2008-12-03 | 2009-11-11 | 英光股份有限公司 | Heating device for aquarium |
| CN202501612U (en) * | 2012-03-20 | 2012-10-24 | 林土 | Heater of electric heating faucet |
| CN203748034U (en) * | 2014-03-20 | 2014-07-30 | 海宁托博特种陶瓷制品有限公司 | Ceramic electric heater used for water tank |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109334390A (en) * | 2018-11-06 | 2019-02-15 | 海宁托博特种陶瓷制品有限公司 | New-energy automobile heating preheating device |
| CN109334390B (en) * | 2018-11-06 | 2024-02-02 | 海宁托博特种陶瓷制品有限公司 | Die casting or pouring integrated forming device for silicon nitride heating body and aluminum piece |
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Application publication date: 20140618 |