CN109323464A - A kind of electric heater - Google Patents
A kind of electric heater Download PDFInfo
- Publication number
- CN109323464A CN109323464A CN201811341943.5A CN201811341943A CN109323464A CN 109323464 A CN109323464 A CN 109323464A CN 201811341943 A CN201811341943 A CN 201811341943A CN 109323464 A CN109323464 A CN 109323464A
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- CN
- China
- Prior art keywords
- protector
- overtemp
- electric heater
- fuse
- electrically connected
- Prior art date
- Legal status (The legal status 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 status listed.)
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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
- F24H9/00—Details
- F24H9/20—Arrangement or mounting of control or safety devices
- F24H9/2007—Arrangement or mounting of control or safety devices for water heaters
- F24H9/2014—Arrangement or mounting of control or safety devices for water heaters using electrical energy supply
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- 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)
- Control Of Resistance Heating (AREA)
Abstract
The invention discloses a kind of electric heaters, comprising: shell, liner, fuse, electric heating tube, temperature controller, Overtemp. protector and plug；Fuse is arranged between shell and liner, and Overtemp. protector is arranged on liner；Plug has zero line, zero line side and ground terminal；One end of fuse is electrically connected with zero line, and the other end of fuse is electrically connected with the first input end of Overtemp. protector；Zero line side is electrically connected with the second input terminal of Overtemp. protector；Output end, the electric heating tube of Overtemp. protector are electrically connected with temperature controller.When electric heater generation temperature controller, temperature is caused constantly to rise for Overtemp. protector failure simultaneously or inner lead generation is short-circuit or poor contact leads to a large amount of adstante febres; the fusing when detecting abnormal overtemperature by fuse; to disconnect the energization between leakage protecting plug and power supply; the complete machine power-off for realizing electric heater, reaches electric heater fireproof purpose.
Description
Technical field
The present invention relates to electric heater fields, and in particular to a kind of electric heater.
Background technique
With the continuous development of society, many families are mounted with domestic, electric water heater.Electric heater presses heating power size
Storage-type (also known as positive displacement or heat storage type), three kinds of instant heating type, fast heating type (also known as half storage-type) can be divided into；Storage-type is electric heating
The principal mode of hydrophone, difference according to the installation method can further discriminate between for vertical, horizontal type, console mode, slot following formula, and most
The integrated form with bathroom cabinet integrated design of new listing.Whether by pressure-bearing, and open type (plain type) and closed can be divided into
(pressure-bearing type).Simultaneously for the position that electric heater electrical part (such as electric heating tube, temperature controller) compares concentration, due to its closing
Narrow space, heat dissipation are limited to, and in the case where being electrified for a long time, heat cannot dissipate in time, so that there are electric heaters to rise
Fiery hidden danger.
Existing electric heater is fire prevention, is usually laid with heat-isolating flame retardant material outside the tank, passes through heat-isolating flame retardant material
Incombustibility, high heat resistance have good heat-insulating flame-retardant effect.But the fire-proof function of existing electric heater can only be only right
Members (such as the liner for being equipped with electric heating tube), flameproof effect is poor.
Summary of the invention
First technical problem solved by the invention is to provide for a kind of electric heater, can be effectively prevented because of electric heating
The fever abnormal conditions of water heater temperature control failure, conducting wire short circuit or poor wire connection realize the complete machine fire prevention of electric heater.
Above-mentioned first technical problem is solved by the following technical programs:
A kind of electric heater, comprising: shell, liner, fuse, electric heating tube, temperature controller, Overtemp. protector and
Plug；The fuse is arranged between the shell and liner, and the Overtemp. protector is arranged on the liner；It is described to insert
Head has zero line, zero line side and ground terminal；One end of the fuse is electrically connected with the zero line, the fuse
The other end is electrically connected with the first input end of the Overtemp. protector；Second input of the zero line side and the Overtemp. protector
End electrical connection；The output end of the Overtemp. protector, the electric heating tube are electrically connected with the temperature controller.
Electric heater of the present invention, compared with the background art caused by the utility model has the advantages that
When temperature controller, Overtemp. protector occur for electric heater fail simultaneously to lead to that temperature constantly rises or inside is led
Short circuit or poor contact, which occur, for line leads to a large amount of adstante febres, the fusing when detecting abnormal overtemperature by fuse, to disconnect
Energization between leakage protecting plug and power supply realizes the complete machine power-off of electric heater, reaches electric heater fireproof purpose.
The plug is leakage protecting plug in one of the embodiments,.
The leakage protecting plug includes: power switch, for power switch described in disjunction in one of the embodiments,
Leakage tripping device, electronic amplification circuit and zero sequence current mutual inductor for amplified signal,；The leakage tripping device connection
In the power switch；The power switch includes: firewire connection switch, zero curve connection switch, ground wire connection switch, the fire
Line connection switch, the zero curve connection switch, the first end of the ground wire connection switch are for connecting power supply, the firewire connection
It is switch, the zero curve connection switch, the second end of the ground wire connection switch and the zero line, the zero line side, described
Line end corresponds electrical connection；The zero sequence current mutual inductor is connected between power switch and Overtemp. protector；The electronics
Amplifying circuit passes through lead respectively and connect with the zero sequence current mutual inductor, the leakage tripping device.
Electric heater of the present invention, compared with the background art caused by the utility model has the advantages that
Whether leaked electricity by zero sequence current mutual inductor detection line road, and by electronic amplification circuit to the signal detected
It amplifies, when there is electric leakage there are route, power switch being controlled by leakage tripping device and is disconnected, to disconnect earth leakage protective
Energization between plug and power supply realizes the complete machine power-off of electric heater, achievees the purpose that electric heater is anticreep.
The temperature controller is mechanical temperature controller in one of the embodiments,.
The temperature controller includes master board, the temperature for detecting liner water temperature in one of the embodiments,
Sensor and display board, the temperature sensor, the display board, the electric heating tube, the Overtemp. protector respectively with
The master board electrical connection.
The Overtemp. protector has the first output end, second output terminal in one of the embodiments,；The electric heating
Pipe has first input end, the second input terminal；The first of first output end of the Overtemp. protector and the electric heating tube is defeated
Enter end, the second input terminal of the electric heating tube, the second output terminal of the Overtemp. protector are electrically connected with the temperature controller respectively
It connects.
Detailed description of the invention
Fig. 1 is the schematic block diagram for the electric heater that first embodiment of the invention provides；
Fig. 2 is the schematic block diagram for another electric heater that first embodiment of the invention provides；
Fig. 3 is the schematic block diagram for another electric heater that second embodiment of the invention provides；
Fig. 4 is the schematic block diagram for another electric heater that second embodiment of the invention provides.
Detailed description of the invention:
1, fuse, 2, electric heating tube, 3, temperature controller, 4, Overtemp. protector, 5, plug, 31, master board, 32,
Display board, 33, mechanical temperature controller, 34, temperature sensor, 51, power switch, 52, leakage tripping device, 53, electronics amplification electricity
Road, 54, zero sequence current mutual inductor.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Electric heater mainly includes shell, liner, outlet pipe, water outlet insulation tube, water pipe head and Overtemp. protector.
One end of water pipe head passes through wall of inner container and protrudes into liner, and water pipe head is solid by welding procedure and liner sealing
Fixed connection.Outlet pipe passes through water pipe head and protrudes into liner setting, and outlet pipe is fixed in water pipe head, water outlet insulation tube and water pipe
Joint sealing connection, water outlet insulation tube are connected to outlet pipe.Shell accommodates the liner, outlet pipe, water outlet insulation tube and water
Pipe fitting, wherein water outlet insulation tube passes through shell and is connected to external hot-water supply device.
Electric heating tube is equipped in liner, the water for heating inner liner storage.
Please refer to Fig. 1, first embodiment of the invention provides a kind of electric heater, comprising: shell, liner, fuse 1,
Electric heating tube 2, temperature controller 3, Overtemp. protector 4 and plug 5；The setting of fuse 1 is in the shell 1 and liner 2
Between, the Overtemp. protector 4 is arranged on the liner 2；The plug 5 has zero line, zero line side and ground terminal；Institute
The one end for stating fuse 1 is electrically connected with the zero line, and the first of the other end of the fuse and the Overtemp. protector 4 is defeated
Enter end electrical connection；The zero line side is electrically connected with the second input terminal of the Overtemp. protector 4；The Overtemp. protector 4 it is defeated
Outlet, the electric heating tube 2 are electrically connected with the temperature controller 3.
Electric heater of the present invention, compared with the background art caused by the utility model has the advantages that
When temperature controller, Overtemp. protector occur for electric heater fail simultaneously to lead to that temperature constantly rises or inside is led
Short circuit or poor contact, which occur, for line leads to a large amount of adstante febres, the fusing when detecting abnormal overtemperature by fuse 1, to disconnect
Energization between plug 5 and power supply realizes the complete machine power-off of electric heater, reaches electric heater fireproof purpose.
In an alternative embodiment, the temperature controller 3 includes master board 31, display board 32, for detecting
The temperature sensor 34 of liner water temperature, the temperature sensor 34, the display board 32, the electric heating tube 2, the overtemperature are protected
Shield device 4 is electrically connected with the master board 31 respectively.
In an alternative embodiment, the plug 5 is leakage protecting plug.
As shown in Fig. 2, in an alternative embodiment, the leakage protecting plug includes: power switch 51, for dividing
Break leakage tripping device 52, the electronic amplification circuit 53 and zero sequence current mutual inductor for amplified signal of the power switch 51
54；The leakage tripping device 52 is connected to the power switch 51；The power switch 51 includes: firewire connection switch, zero curve
Connection switch, ground wire connection switch, the firewire connection switch, the zero curve connection switch, the ground wire connection switch
One end for connecting power supply, the firewire connection switch, the zero curve connection switch, the second end of the ground wire connection switch with
The zero line, the zero line side, the ground terminal correspond electrical connection；The zero sequence current mutual inductor 54 is connected to power supply
Between switch 51 and Overtemp. protector 4；The electronic amplification circuit 53 respectively by lead and the zero sequence current mutual inductor 54,
The leakage tripping device 52 connects.
Electric heater of the present invention, compared with the background art caused by the utility model has the advantages that
Whether leaked electricity by zero sequence current mutual inductor 54 detection line road, and by electronic amplification circuit 53 to detecting
Signal amplifies, and when there is electric leakage there are route, controlling power switch by leakage tripping device 52 and disconnecting, to disconnect leakage
Energization between electric protection plug and power supply realizes the complete machine power-off of electric heater, achievees the purpose that electric heater is anticreep.
Referring to Fig. 3, second embodiment of the invention provides a kind of electric heater, comprising: shell, liner, fuse 1,
Electric heating tube 2, temperature controller 3, Overtemp. protector 4 and plug 5；The setting of fuse 1 is in the shell 1 and liner 2
Between, the Overtemp. protector 4 is arranged on the liner 2；The plug 5 has zero line, zero line side and ground terminal；Institute
The one end for stating fuse 1 is electrically connected with the zero line, and the first of the other end of the fuse and the Overtemp. protector 4 is defeated
Enter end electrical connection；The zero line side is electrically connected with the second input terminal of the Overtemp. protector 4；The Overtemp. protector 4 it is defeated
Outlet, the electric heating tube 2 are electrically connected with the temperature controller 3.
Electric heater of the present invention, compared with the background art caused by the utility model has the advantages that
When electric heater occur temperature controller 3, Overtemp. protector simultaneously fail cause temperature constantly rises or inside
Short circuit or poor contact, which occur, for conducting wire leads to a large amount of adstante febres, the fusing when detecting abnormal overtemperature by fuse 1, thus disconnected
The energization between plug 5 and power supply is opened, the complete machine power-off of electric heater is realized, reaches electric heater fireproof purpose.
In an alternative embodiment, the temperature controller 3 is mechanical temperature controller 33.
In an alternative embodiment, the Overtemp. protector 4 has the first output end, second output terminal；The electricity
Heating tube 2 has first input end, the second input terminal；First output end of the Overtemp. protector 4 and the electric heating tube 2
First input end, the second input terminal of the electric heating tube 2, the Overtemp. protector 4 second output terminal respectively with the temperature
Device 33 is controlled to be electrically connected.
In an alternative embodiment, the plug 5 is leakage protecting plug.
As shown in figure 4, in an alternative embodiment, the leakage protecting plug includes: power switch 51, for dividing
Break leakage tripping device 52, the electronic amplification circuit 53 and zero sequence current mutual inductor for amplified signal of the power switch 51
54；The leakage tripping device 52 is connected to the power switch 51；The power switch 51 includes: firewire connection switch, zero curve
Connection switch, ground wire connection switch, the firewire connection switch, the zero curve connection switch, the ground wire connection switch
One end for connecting power supply, the firewire connection switch, the zero curve connection switch, the second end of the ground wire connection switch with
The zero line, the zero line side, the ground terminal correspond electrical connection；The zero sequence current mutual inductor 54 is connected to power supply
Between switch 51 and Overtemp. protector 4；The electronic amplification circuit 53 respectively by lead and the zero sequence current mutual inductor 54,
The leakage tripping device 52 connects.
Electric heater of the present invention, compared with the background art caused by the utility model has the advantages that
Whether leaked electricity by zero sequence current mutual inductor 54 detection line road, and by electronic amplification circuit 53 to detecting
Signal amplifies, and when there is electric leakage there are route, controlling power switch 51 by leakage tripping device 52 and disconnecting, to disconnect
Energization between leakage protecting plug and power supply realizes the complete machine power-off of electric heater, achievees the purpose that electric heater is anticreep.
It is the preferred embodiment of the present invention above, it is noted that for those skilled in the art,
Various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also considered as this hair
Bright protection scope.
Claims (6)
1. a kind of electric heater characterized by comprising shell, liner, fuse, electric heating tube, temperature controller, overtemperature
Protector and plug；The fuse is arranged between the shell and liner, and the Overtemp. protector is arranged described interior
On gallbladder；The plug has zero line, zero line side and ground terminal；One end of the fuse is electrically connected with the zero line,
The other end of the fuse is electrically connected with the first input end of the Overtemp. protector；The zero line side and the overtemperature prote
Second input terminal of device is electrically connected；The output end of the Overtemp. protector, the electric heating tube and the temperature controller are electrically connected
It connects.
2. electric heater as described in claim 1, which is characterized in that the plug is leakage protecting plug.
3. electric heater as claimed in claim 2, which is characterized in that the leakage protecting plug includes: power switch, is used for
The leakage tripping device of power switch described in disjunction, electronic amplification circuit and zero sequence current mutual inductor for amplified signal；Institute
It states leakage tripping device and is connected to the power switch；The power switch include: firewire connection switch, zero curve connection switch,
Line connection switch, the firewire connection switch, the zero curve connection switch, the first end of the ground wire connection switch are for connecting
Power supply, the firewire connection switch, the zero curve connection switch, the second end of the ground wire connection switch and the zero line,
The zero line side, the ground terminal correspond electrical connection；The zero sequence current mutual inductor is connected to power switch and overtemperature is protected
It protects between device；The electronic amplification circuit passes through lead respectively and connect with the zero sequence current mutual inductor, the leakage tripping device.
4. electric heater as described in claim 1, which is characterized in that the temperature controller is mechanical temperature controller.
5. electric heater as described in claim 1, which is characterized in that the temperature controller includes master board, for examining
Survey the temperature sensor and display board of liner water temperature, it is the temperature sensor, the display board, the electric heating tube, described
Overtemp. protector is electrically connected with the master board respectively.
6. electric heater as claimed in claim 4, which is characterized in that the Overtemp. protector has the first output end, second
Output end；The electric heating tube has first input end, the second input terminal；First output end of the Overtemp. protector with it is described
The first input end of electric heating tube, the second input terminal of the electric heating tube, the second output terminal of the Overtemp. protector are distinguished
It is electrically connected with the mechanical temperature controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811341943.5A CN109323464A (en) | 2018-11-12 | 2018-11-12 | A kind of electric heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811341943.5A CN109323464A (en) | 2018-11-12 | 2018-11-12 | A kind of electric heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109323464A true CN109323464A (en) | 2019-02-12 |
Family
ID=65261497
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811341943.5A Pending CN109323464A (en) | 2018-11-12 | 2018-11-12 | A kind of electric heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109323464A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109945506A (en) * | 2019-03-29 | 2019-06-28 | 广东万博电气有限公司 | A kind of electric heater with water outlet power down function |
| CN114631749A (en) * | 2022-04-25 | 2022-06-17 | 江西艾芬达暖通科技股份有限公司 | Electric heating towel rack with leakage protection function |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204205556U (en) * | 2014-09-29 | 2015-03-11 | 余姚市嘉荣电子电器有限公司 | Leakage protecting plug |
| CN106642720A (en) * | 2016-11-17 | 2017-05-10 | 佛山市云米电器科技有限公司 | Pre-induction type anti-dry burning structure of rapid water heating device |
| CN107270548A (en) * | 2017-08-08 | 2017-10-20 | 广东万家乐燃气具有限公司 | Overtemperature prote control system and electric heater |
| CN206834720U (en) * | 2017-05-27 | 2018-01-02 | 芜湖美的厨卫电器制造有限公司 | Electric heater and its protection device |
| CN209415789U (en) * | 2018-11-12 | 2019-09-20 | 广东万博电气有限公司 | A kind of electric heater |
-
2018
- 2018-11-12 CN CN201811341943.5A patent/CN109323464A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204205556U (en) * | 2014-09-29 | 2015-03-11 | 余姚市嘉荣电子电器有限公司 | Leakage protecting plug |
| CN106642720A (en) * | 2016-11-17 | 2017-05-10 | 佛山市云米电器科技有限公司 | Pre-induction type anti-dry burning structure of rapid water heating device |
| CN206834720U (en) * | 2017-05-27 | 2018-01-02 | 芜湖美的厨卫电器制造有限公司 | Electric heater and its protection device |
| CN107270548A (en) * | 2017-08-08 | 2017-10-20 | 广东万家乐燃气具有限公司 | Overtemperature prote control system and electric heater |
| CN209415789U (en) * | 2018-11-12 | 2019-09-20 | 广东万博电气有限公司 | A kind of electric heater |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109945506A (en) * | 2019-03-29 | 2019-06-28 | 广东万博电气有限公司 | A kind of electric heater with water outlet power down function |
| CN114631749A (en) * | 2022-04-25 | 2022-06-17 | 江西艾芬达暖通科技股份有限公司 | Electric heating towel rack with leakage protection function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190212 |
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| RJ01 | Rejection of invention patent application after publication |