CN102313350B - Water heater - Google Patents
Water heater Download PDFInfo
- Publication number
- CN102313350B CN102313350B CN201010221053.8A CN201010221053A CN102313350B CN 102313350 B CN102313350 B CN 102313350B CN 201010221053 A CN201010221053 A CN 201010221053A CN 102313350 B CN102313350 B CN 102313350B
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- CN
- China
- Prior art keywords
- plastic film
- water
- film layers
- water heater
- electric heater
- 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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- Resistance Heating (AREA)
Abstract
The invention discloses a water heater, which comprises a liner, a heat source, a water inlet, a water outlet, a heat-insulating layer and a plastic film layer, wherein the liner is used for containing a certain quantity of water which can be heated, the heat source is used for heating the water in the liner, the water inlet and the water outlet are communicated with the liner to transfer the water flowing into the liner and flowing out of the liner, the heat-insulating layer is coated outside the liner, and the plastic film layer is coated outside the heat-insulating layer. The plastic film layer is the outermost layer of the water heater. Because the plastic film layer is adopted as the outermost layer of the water heater, the water heater has good electrical-insulating performance, and further, dangers caused by the electrification of a shell are avoided; and in addition, because a metal or plastic shell is omitted, the production and manufacturing cost of the water heater is greatly lowered.
Description
Technical field
The present invention relates to a kind of water heater, particularly relate to the layer structure of water heater.
Background technology
Existing water heater generally includes metal inner tube, is arranged on the electric heating tube in inner bag, and coated metal shell outside the tank.Because water heater in use all can be connected with power supply usually, so security performance just seems particularly important for water heater.The inner bag of usual water heater and shell all can pass through ground wire grounded, like this once inner bag or outer casing electrification, owing to being communicated with ground wire, so can be in lower electromotive force, to guarantee the just conventional water of user.Certainly, if because the reasons such as ground wire wrong result in ground wire electrification, the design of water resistance is additionally used in existing water heater, namely flow path is extended to increase the resistance value of water, even if thus inner bag is charged, by the step-down of water resistance, make finally to flow out water pipe by the water of use with electromotive force lower and be in safe scope.But, although user can not get an electric shock because inner bag is charged, because now metal shell is also charged, so, if user encounters because of carelessness, still can cause getting an electric shock, cause security incident.In existing design, also have and adopt plastic casing to carry out substituted metal shell to avoid the generation of above-mentioned situation.But this plastic casing is shaping cumbersome, and manufacturing cost is also very high.In view of this, be necessary to be improved to solve the problem to existing water heater.
Summary of the invention
The object of the present invention is to provide a kind of water heater, it has the skin design of improvement, effectively can prevent outer casing electrification, reduce manufacturing cost simultaneously.
For achieving the above object, a kind of water heater of the present invention, it comprises:
Inner bag, for accommodating a certain amount of heated water;
Thermal source, for the water in heating inner liner;
Water inlet and delivery port, be communicated with to transmit the water flowing into inner bag and flow out inner bag with described inner bag;
Thermal insulation layer, is coated on outside described inner bag;
Plastic film layers, is coated on outside described thermal insulation layer, and it is the outermost layer of water heater.
As a further improvement on the present invention, the inner surface of described plastic film layers is also covered with metal coating.
As a further improvement on the present invention, described metal coating is silver coating.
As a further improvement on the present invention, the outer surface of described plastic film layers is also printed with word or pattern.
As a further improvement on the present invention, the monnolithic case of described plastic film layers is determined in advance.
As a further improvement on the present invention, the entirety of described plastic film layers is roughly in bag-shaped, and described thermal insulation layer is filled in described bag-shaped plastic film layers.
As a further improvement on the present invention, described thermal insulation layer is formed by after foamed material condensation.
As a further improvement on the present invention, described plastic film layers is made up of polyester material.
Compared with prior art, the invention has the beneficial effects as follows: because the outermost layer of water heater have employed plastic film layers, it has good electrical insulation capability, thus avoids the danger caused because of outer casing electrification; In addition, owing to eliminating metal or plastic casing, the manufacturing cost of water heater is greatly reduced.
Accompanying drawing explanation
Fig. 1 is longitudinal cross-sectional schematic of water heater one detailed description of the invention of the present invention.
Detailed description of the invention
Figure 1 shows that a detailed description of the invention of water heater of the present invention.The thermal insulation layer 50 that this water heater 100 comprises the inner bag 10 for storing healed water and is coated on outside inner bag 10.Inner bag 10 is roughly in barrel-shaped, and it has drum-shaped bucket wall, is usually made up of ferrous metal, as steel, iron etc.Thermal insulation layer 50 is formed by after foamed material (as being made up of polyurethane material) condensation.Water heater 100 also includes the thermal source for heating cold water, and it can adopt various ways.For the electric heater shown in Fig. 1, ring flange 32 can be set at of inner bag 1 longitudinal end place, one electric heating tube 31 to be arranged on ring flange and to extend in the water being stored in inner bag inside, this heating tube can comprise the resistance wire that has high impedance, and the positive and negative electrode terminal of this resistance wire is arranged on ring flange and with the AC power of 220V or 110V and is connected.Certainly, for other forms of water heater, as gas water heater, can be heated the liquid in inner bag by the combustion chamber arranged outside the tank.The bottom of inner bag 10 is provided with the water inlet 21 for being introduced by cold water in inner bag and is used for discharging a delivery port 22 of healed water.The skin of water heater 100 is also provided with hanger assembly (not shown) usually, for coordinating with the support member be arranged on body of wall (not shown) so that water heater is suspended to body of wall.
In present embodiment, the outermost layer of water heater 100 is plastic film layers 40.This plastic film layers 40 can be a part for plastic film bag, and that is, the entirety of plastic film layers can form one bag-shaped.Plastic film layers can be made up of polyester material, as PETG (Polythyleneterephthalate, PET).When manufacturing assembling, by the mould of foamed material, plastic film layers being looped around around inner bag 10 cylindrical shell, and taking this monnolithic case of plastic film layers 40 is determined in advance, as cylindrical shape, cuboid etc.Subsequently, foamed material is injected in the cavity be formed between plastic film layers 40 and inner bag 10 cylindrical shell, after foam material condensation pending, namely defines thermal insulation layer 50.In order to improve heat-proof quality further, metal coating can be applied, as silver coating at the inner surface of plastic film layers 40.Like this, avoid heat conducting generation by thermal insulation layer on the one hand, on the other hand, reflected back by the heat radiation of metal coating by inner bag, thus reduce further the loss of the energy.In addition, as the outermost layer of water heater, the outer surface of plastic film layers 40 can also be printed with words identification or decorative pattern.
Because the outermost layer of water heater have employed plastic film layers, it has good electrical insulation capability, thus avoids the danger caused because of outer casing electrification; In addition, owing to eliminating metal or plastic casing, the manufacturing cost of water heater is greatly reduced.
Claims (8)
1. an electric heater, is characterized in that, comprising:
Inner bag, for accommodating a certain amount of heated water
Electric heating tube, for the water in heating inner liner
Water inlet and delivery port, be communicated with to transmit the water flowing into inner bag and flow out inner bag with described inner bag;
Thermal insulation layer, is coated on outside described inner bag;
Plastic film layers, is coated on outside described thermal insulation layer, and it is the outermost layer of water heater.
2. electric heater as claimed in claim 1, is characterized in that, the inner surface of described plastic film layers is also covered with metal coating.
3. electric heater as claimed in claim 2, it is characterized in that, described metal coating is silver coating.
4. electric heater as claimed in claim 1, is characterized in that, the outer surface of described plastic film layers is also printed with word or pattern.
5. electric heater as claimed in claim 1, it is characterized in that, the monnolithic case of described plastic film layers is determined in advance.
6. electric heater as claimed in claim 1, is characterized in that, the entirety of described plastic film layers is roughly in bag-shaped, and described thermal insulation layer is filled in described bag-shaped plastic film layers.
7. electric heater as claimed in claim 1, it is characterized in that, described thermal insulation layer is formed by after foamed material condensation.
8. electric heater as claimed in claim 1, it is characterized in that, described plastic film layers is made up of polyester material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010221053.8A CN102313350B (en) | 2010-06-30 | 2010-06-30 | Water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010221053.8A CN102313350B (en) | 2010-06-30 | 2010-06-30 | Water heater |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102313350A CN102313350A (en) | 2012-01-11 |
| CN102313350B true CN102313350B (en) | 2015-03-25 |
Family
ID=45426745
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010221053.8A Expired - Fee Related CN102313350B (en) | 2010-06-30 | 2010-06-30 | Water heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102313350B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2204400Y (en) * | 1994-12-19 | 1995-08-02 | 宋郁 | Plastic-film solar water-heater |
| CN101059274A (en) * | 2007-05-22 | 2007-10-24 | 唐春芳 | High heat solar water-heating cartridge |
| CN201476256U (en) * | 2009-08-01 | 2010-05-19 | 美的集团有限公司 | Electric water heater |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2855911A1 (en) * | 1978-12-23 | 1980-07-10 | Isopag Ag | THERMO-INSULATED HEAT STORAGE |
| CN201387146Y (en) * | 2009-04-08 | 2010-01-20 | 博西华电器（江苏）有限公司 | Heat isolating device and water heater using heat isolating device |
| CN201476276U (en) * | 2009-08-14 | 2010-05-19 | 博西华电器（江苏）有限公司 | Water heater |
-
2010
- 2010-06-30 CN CN201010221053.8A patent/CN102313350B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2204400Y (en) * | 1994-12-19 | 1995-08-02 | 宋郁 | Plastic-film solar water-heater |
| CN101059274A (en) * | 2007-05-22 | 2007-10-24 | 唐春芳 | High heat solar water-heating cartridge |
| CN201476256U (en) * | 2009-08-01 | 2010-05-19 | 美的集团有限公司 | Electric water heater |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102313350A (en) | 2012-01-11 |
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Legal Events
| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| 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: 20150325 Termination date: 20210630 |
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| CF01 | Termination of patent right due to non-payment of annual fee |