CN204880652U - Electric water heater - Google Patents
Electric water heater Download PDFInfo
- Publication number
- CN204880652U CN204880652U CN201520468201.4U CN201520468201U CN204880652U CN 204880652 U CN204880652 U CN 204880652U CN 201520468201 U CN201520468201 U CN 201520468201U CN 204880652 U CN204880652 U CN 204880652U
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- CN
- China
- Prior art keywords
- heating unit
- water heater
- electric water
- heating
- film
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses an electric water heater, including the heating unit, this electric water heater connects the combination by a plurality of heating unit and forms, the heating unit includes base, lower base and press from both sides film between the two bases piece that generates heat, upward be equipped with the water inlet on the base, be equipped with the delivery port on the base down, be connected with the delivery port through the water inlet between the adjacent heating unit, the film generates heat the control circuit who is equipped with thermistor and electric water heater on the piece and is connected, this electric water heater adopts film heating element of piece as the heating unit that generate heat, the film generates heat the piece and generates heat efficiently, generate heat the fluid in the space between piece and the sealing washer and heat flowing into the film, the heating area of rivers obtains increaseing, effectively improve heating efficiency, increase thermistor as temperature control element, be favorable to improving the stability of output temperature, the heating unit can make up the application in a flexible way, simple structure and high reliability, and is high in safety.
Description
Technical field
The utility model relates to electric heater, especially a kind of instant electric water heater.
Background technology
Be utilize the heating tube installed therein to carry out heating during electric water heater heating, the inside of heating tube is heating wire, can generate heat after energising.Existing electric heater, in order to improve the efficiency of heating surface, is typically provided with a high-power electro-heat equipment, when water by time just it is heated, because power is very large, observable index is higher, complex structure, and the security of this type of electric heater is also usually under suspicion.
Utility model content
In order to solve the problems of the technologies described above, the utility model provides a kind of instant electric water heater with preventing dry combustion function, and adopt the heating unit tiling arrangement of laminated structure as water flow heater, the efficiency of heating surface is high.
To achieve these goals, the technical scheme that the utility model adopts is:
A kind of instant electric water heater, comprise heating unit, this electric heater is combined by the connection of several heating units, the film heating sheets that described heating unit comprises upper bed-plate, lower bottom base and is clipped between two bases, described upper bed-plate is provided with water inlet, described lower bottom base is provided with delivery port, be connected with delivery port by water inlet between adjacent heating unit, described film heating sheets is provided with thermistor and is connected with the control circuit of electric heater, for controlling heating-up temperature and having preventing dry combustion function.
Preferably, be provided with sealing ring between described film heating sheets and base, described sealing ring is frame-shaped rubber ring.
Preferably, described film heating sheets is the soft lamellar body be sticked to form by the nickel alloy electricity backing with insulating barrier, and the extension of its edge is provided with positive and negative electrode connector.
Above-mentioned thermistor is negative temperature coefficient thermistor, and thermistor, to responsive to temperature, shows different resistance values at different temperature, and this negative temperature coefficient thermistor (NTC) resistance value when temperature is higher is lower.
Embodiment one, described heating unit is arranged in U-shaped structure.
Embodiment two, described heating unit is arranged in loop configuration.
Preferably, described heating unit is provided with ground lead.
The beneficial effects of the utility model: this electric heater adopts film heating sheets as the heating element heater of heating unit, film heating sheets heating efficiency is high, the fluid in the space flowed between film heating sheets and sealing ring is heated, the heating surface area of current is strengthened, effective raising efficiency of heating surface, increase thermistor as temperature control element, be conducive to the stability improving output water temperature, prevent the empty burning situation of electric heater from occurring; In addition, heating unit can flexible combination be applied, and simple and reliable for structure, security is high.
Detailed description of the invention
With reference to Fig. 1-4, a kind of instant electric water heater that the utility model provides, comprise heating unit 1, this electric heater is combined by the connection of several heating units 1, described heating unit 1 comprises upper bed-plate, lower bottom base and the film heating sheets 2 be clipped between two bases, described upper bed-plate is provided with water inlet, described lower bottom base is provided with delivery port, (accompanying drawing the structure of not shown upper bed-plate and lower bottom base) is connected with delivery port by water inlet between adjacent heating unit 1, described film heating sheets 2 is provided with thermistor 4 and is connected with the control circuit of electric heater, this control circuit is IC circuit, namely the resistance value that thermistor 4 exports is read by IC circuit.
In this embodiment, the concrete thermistor 4 adopted is negative temperature coefficient thermistor (NTC), the resistance of this NTC reduces with the rising of temperature, Real-Time Monitoring water temperature during work, when heating-up temperature reaches electric heater design temperature, NTC feedback signal, to control circuit, controls power output by control circuit and makes temperature reach constant.
In addition, design NTC can prevent electric heater from occurring empty situation of burning, specifically, this NTC is fitted on the electric heating piece in film heating sheets 2, and at the width design comparatively thin (accompanying drawing this concrete structure not shown) of the position electric heating piece of NTC laminating, now the resistance of this section of electric heating piece is higher, can show hotter during energising, thus play a protective role, its principle be current by film heating sheet 2 time, film heating sheets 2 heats up slower in water in the unit interval; But if there is when cutting off the water supply, it is very fast that film heating sheets 2 exposes the interior intensification of unit interval in atmosphere, now judges empty burning occurs according to the temperature variations of NTC, thus carry out power down process immediately; Further, whether design power cut off delay 5-10 conducts electricity after second again, detect empty burning situation and removed, normally work to recover electric heater.
Preferably, be provided with sealing ring 3 between film heating sheets 2 and base, sealing ring 3 is frame-shaped rubber ring, forms a cavity between film heating sheets 2 and sealing ring 3, and current are contacted with film heating sheets 2, and heating surface area strengthens, thus improves the efficiency of heating surface; The film heating sheets 2 adopted in embodiment is the soft lamellar body be sticked to form by the nickel alloy electricity backing with insulating barrier, and the extension of its edge is provided with positive and negative electrode connector 5.In order to improve the safety in utilization of electric heater, heating unit 1 arranges ground lead.
Arrange number and the arrangement architecture of heating unit 1 according to the heating capacity demand of water heater, its arrangement architecture can adopt and be connected in series or syndeton that connection in series-parallel combines, embodiment one, and heating unit 1 is arranged in U-shaped structure; Embodiment two, heating unit 1 is arranged in loop configuration, and shown in Fig. 3 and Fig. 4, combination simple and flexible, Stability Analysis of Structures is reliable.During work, current heat through several heating units 1 successively, and because current and fever tablet contact area are comparatively large, film heating sheet 2 one energising can heat generation hot water, and heating highly effective and safe, volume structure also reduces greatly.
The above; just preferred embodiment of the present utility model; in the utility model, the arrangement architecture of heating unit 1 is not limited to above-mentioned embodiment, as long as it reaches technique effect of the present utility model with identical means, all should belong to protection domain of the present utility model.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, detailed description of the invention of the present utility model is described further.
Fig. 1 is the schematic diagram of film heating sheets and sealing ring in the utility model;
Fig. 2 is the structural representation of film heating sheets in the utility model;
Fig. 3 is the textural association schematic diagram of embodiment one in the utility model;
Fig. 4 is the textural association schematic diagram of embodiment two in the utility model.
Claims (7)
1. an instant electric water heater, comprise heating unit (1), this electric heater is combined by several heating units (1) connection, described heating unit (1) comprises upper bed-plate, lower bottom base and is clipped in the film heating sheets (2) between two bases, described upper bed-plate is provided with water inlet, described lower bottom base is provided with delivery port, adjacent heating unit is connected with delivery port by water inlet between (1), it is characterized in that: described film heating sheets (2) is provided with thermistor (4) and is connected with the control circuit of electric heater.
2. a kind of instant electric water heater according to claim 1, is characterized in that: be provided with sealing ring (3) between described film heating sheets (2) and base, and described sealing ring (3) is frame-shaped rubber ring.
3. a kind of instant electric water heater according to claim 1 and 2, is characterized in that: described film heating sheets (2) is the soft lamellar body be sticked to form by the nickel alloy electricity backing with insulating barrier, and the extension of its edge is provided with positive and negative electrode connector (5).
4. a kind of instant electric water heater according to claim 3, is characterized in that: described thermistor (4) is negative temperature coefficient thermistor.
5. a kind of instant electric water heater according to claim 1, is characterized in that: described heating unit (1) is arranged in U-shaped structure.
6. a kind of instant electric water heater according to claim 1, is characterized in that: described heating unit (1) is arranged in loop configuration.
7. a kind of instant electric water heater according to claim 5 or 6, is characterized in that: described heating unit (1) is provided with ground lead.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520468201.4U CN204880652U (en) | 2015-06-30 | 2015-06-30 | Electric water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520468201.4U CN204880652U (en) | 2015-06-30 | 2015-06-30 | Electric water heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204880652U true CN204880652U (en) | 2015-12-16 |
Family
ID=54825018
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520468201.4U Expired - Fee Related CN204880652U (en) | 2015-06-30 | 2015-06-30 | Electric water heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204880652U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104949320A (en) * | 2015-06-30 | 2015-09-30 | 郑进妍 | Instant electric water heater |
-
2015
- 2015-06-30 CN CN201520468201.4U patent/CN204880652U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104949320A (en) * | 2015-06-30 | 2015-09-30 | 郑进妍 | Instant electric water heater |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151216 Termination date: 20160630 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |