CN108507180B - Electric water heater - Google Patents
Electric water heater Download PDFInfo
- Publication number
- CN108507180B CN108507180B CN201710115449.6A CN201710115449A CN108507180B CN 108507180 B CN108507180 B CN 108507180B CN 201710115449 A CN201710115449 A CN 201710115449A CN 108507180 B CN108507180 B CN 108507180B
- Authority
- CN
- China
- Prior art keywords
- water heater
- electric water
- flange
- ring
- overflow ring
- 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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Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 54
- 238000005187 foaming Methods 0.000 claims abstract description 55
- 239000000463 material Substances 0.000 claims abstract description 36
- 229910052751 metal Inorganic materials 0.000 claims description 9
- 239000002184 metal Substances 0.000 claims description 9
- 239000002985 plastic film Substances 0.000 claims description 6
- 229920006255 plastic film Polymers 0.000 claims description 6
- 239000011248 coating agent Substances 0.000 claims description 5
- 238000000576 coating method Methods 0.000 claims description 5
- 229920001971 elastomer Polymers 0.000 claims description 5
- 229910052782 aluminium Inorganic materials 0.000 claims description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 4
- 239000002131 composite material Substances 0.000 claims description 2
- 238000010030 laminating Methods 0.000 claims description 2
- 238000007789 sealing Methods 0.000 abstract description 6
- 239000010410 layer Substances 0.000 description 49
- 238000009413 insulation Methods 0.000 description 18
- 238000010438 heat treatment Methods 0.000 description 7
- 239000006261 foam material Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 238000004321 preservation Methods 0.000 description 4
- 239000002937 thermal insulation foam Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 229920005830 Polyurethane Foam Polymers 0.000 description 1
- 230000003471 anti-radiation Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 239000011496 polyurethane foam Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000008093 supporting effect Effects 0.000 description 1
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
- F24H9/02—Casings; Cover lids; Ornamental panels
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)
- Heat-Pump Type And Storage Water Heaters (AREA)
- Central Heating Systems (AREA)
Abstract
The invention discloses an electric water heater, wherein the electric water heater comprises: the inner container is provided with a container opening at one end; the flange is connected with the liner and is arranged corresponding to the liner opening and the liner; the anti-overflow ring is sleeved on the flange plate and is made of high-density materials; the inner container is wrapped in the heat-insulating foaming layer of the electric water heater, and one side of the anti-overflow ring, which is far away from the flange plate, is abutted with the heat-insulating foaming layer. According to the technical scheme, the anti-overflow ring made of the high-density material is adopted, so that the anti-overflow ring meets the strength and sealing requirements, the thickness of the anti-overflow ring is reduced, the foaming space of the heat-insulating foaming layer of the electric water heater is enlarged, more foaming materials can be filled in the electric water heater, and the heat-insulating performance of the electric water heater is further improved.
Description
Technical Field
The invention relates to the field of household appliances, in particular to an electric water heater.
Background
In general, a flange is arranged at the liner opening of the liner of the electric water heater, and the heating pipeline is fixed at the liner opening of the liner through the flange. In the foaming forming process of the heat-insulating foaming layer of the electric water heater, in order to prevent the foaming material from contacting with the flange, the formed heat-insulating foaming layer is bonded with the flange, and an anti-overflow ring is arranged on the flange to isolate the flange from the heat-insulating foaming layer. However, at present, sponge strips with smaller density are mostly adopted to be wound on the flange plate to be used as an anti-overflow ring, at the moment, the thickness of the anti-overflow ring is larger, the occupied space is larger, and then the volume for filling the foaming material is reduced in the foaming forming process of the heat-insulating foaming layer, so that the heat-insulating performance of the electric water heater is poor.
Disclosure of Invention
The invention mainly aims to provide an electric water heater, which aims to reduce the thickness of an anti-overflow ring and the volume of the anti-overflow ring, so that more foaming materials can be filled in the electric water heater, and the heat preservation performance of the electric water heater is improved.
In order to achieve the above object, the electric water heater according to the present invention comprises:
the inner container is provided with a container opening at one end;
the flange is connected with the liner and is arranged corresponding to the liner opening and the liner;
the anti-overflow ring is sleeved on the flange plate and is made of high-density materials;
the inner container is wrapped in the heat-insulating foaming layer of the electric water heater, and one side of the anti-overflow ring, which is far away from the flange plate, is abutted with the heat-insulating foaming layer.
Preferably, the material from which the anti-spill ring is made comprises a high density sponge and/or rubber material.
Preferably, the thickness of the anti-overflow ring is reduced from one end of the anti-overflow ring close to the inner container to the direction away from one end of the inner container.
Preferably, the overflow preventing ring is provided with a heat reflecting layer towards one side of the flange plate and/or one side away from the flange plate.
Preferably, the heat reflective layer comprises a metal coating and/or a metal film.
Preferably, the heat reflection layer comprises a composite film formed by laminating a plastic film and an aluminum film, one side of the plastic film, which is close to the anti-overflow ring, is attached to the surface of the anti-overflow ring, and the aluminum film is arranged on one side, which is opposite to the anti-overflow ring, of the plastic film.
Preferably, the thickness of the anti-overflow ring is 3 mm to 10 mm.
Preferably, one side of the overflow preventing ring away from the flange plate is provided with a plurality of blind holes.
Preferably, a groove is formed in the surface of one side, away from the flange, of the overflow preventing ring.
Preferably, the overflow preventing ring is tightly matched with the flange plate.
According to the technical scheme, the anti-overflow ring made of the high-density material is adopted, so that the anti-overflow ring meets the strength and sealing requirements, the thickness of the anti-overflow ring is reduced, the foaming space of the heat-insulating foaming layer of the electric water heater is enlarged, more foaming materials can be filled in the electric water heater, and the heat-insulating performance of the electric water heater is further improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of an electric water heater according to the present invention at a viewing angle;
FIG. 2 is a cross-sectional view taken along line P-P in FIG. 1;
FIG. 3 is an enlarged view of a portion of FIG. 2 at A;
FIG. 4 is a schematic diagram illustrating the installation of an anti-overflow ring of the electric water heater of the present invention;
fig. 5 is a schematic structural view of an anti-overflow ring and a heat reflective layer of the electric water heater of the present invention.
Reference numerals illustrate:
the achievement of the objects, functional features and advantages of the present invention will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that, if directional indications (such as up, down, left, right, front, and rear … …) are included in the embodiments of the present invention, the directional indications are merely used to explain the relative positional relationship, movement conditions, etc. between the components in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are correspondingly changed.
In addition, if there is a description of "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present invention.
The invention provides an electric water heater.
Referring to fig. 1 to 4, in an embodiment of the present invention, the electric water heater 10 includes:
an inner container 12, wherein an inner container opening 121 is arranged at one end of the inner container 12;
the flange 14 is connected with the liner 12, and is arranged corresponding to the liner opening 121 and the liner 12;
the anti-overflow ring 15 is sleeved on the flange plate 14, and the anti-overflow ring 15 is made of high-density materials;
the inner container 12 is wrapped in the heat-insulating foaming layer 13 of the electric water heater 10, and one side of the anti-overflow ring 15 away from the flange 14 is abutted against the heat-insulating foaming layer 13.
Specifically, the inner container 12 of the electric water heater 10 is disposed in the housing 11 and along the length direction of the housing 11. Because the electric water heater 10 adopts a heating pipe heating mode to heat the water in the inner container 12, the heating pipe is arranged in the inner container 12. In order to fix the heating pipe in the inner container 12, the flange 14 is generally and fixedly connected to the liner opening 121 of the inner container 12, and a heating pipe chassis is disposed on the flange 14, so as to fix the heating pipe at the liner opening 121 of the inner container 12. The flange 14 is generally welded to the liner 12, and is disposed corresponding to the liner opening 121 and the liner 12.
In order to improve the heat insulation performance of the inner container 12, a heat insulation foaming layer 13 is filled between the inner container 12 and the outer shell 11, and the heat insulation foaming layer 13 is preferably a hard polyurethane foaming layer, compared with the foaming material of the common foaming layer, the heat conductivity coefficient of polyurethane foam is lower, the heat insulation performance is better, and the heat insulation performance of the electric water heater 10 can be improved. The formation of the insulating foamed layer 13 is generally carried out by injecting a foaming material into a cavity to be foamed at high pressure by a high-pressure foaming apparatus. Preferably, the insulating foam layer 13 is formed by foaming and molding in one piece, so as to reduce the number and time of high-pressure foaming operation required by the electric water heater 10 and improve the manufacturing efficiency.
In order to avoid the foaming forming process of the heat insulation foaming layer 13, the foaming material is contacted with the flange plate 14 to cause the formed foaming layer to be bonded with the flange plate 14, and an anti-overflow ring 15 is arranged on the outer surface of the flange plate 14 to isolate the foaming material and the flange plate 14 from each other, wherein the anti-overflow ring 15 is sleeved on the flange plate 14, and the inner diameter of the anti-overflow ring 15 is matched with the outer diameter of the flange plate 14 so as to enable the inner surface of the anti-overflow ring 15 to be fully contacted with the outer surface of the flange plate 14. Meanwhile, when the anti-overflow ring 15 is attached to the flange plate 14, the flange plate 14 has a good supporting effect on the anti-overflow ring 15 when the anti-overflow ring 15 is extruded by the foaming material. When the values are stated, during the foaming process of the insulating foam layer 13, the foam material will generate a large pressure which acts directly on the anti-overflow ring 15 in order to prevent the foam material from leaking through the anti-overflow ring 15 to the flange 14.
It will be appreciated that the more insulation foam layers 13 within the electric water heater 10, the better the insulation performance of the electric water heater 10. In order to meet the requirements of strength and sealing, the existing anti-overflow ring 15 has a large thickness and a large volume, which results in relatively reduced volume of space available for filling in the electric water heater 10, and finally, the heat preservation effect of the electric water heater 10 is poor.
In order to improve the above situation and further increase the volume of space available for filling in the electric water heater 10, in this embodiment, the anti-overflow ring 15 is made of high density material, and by increasing the density of the anti-overflow ring 15, the thickness of the anti-overflow ring 15 can be considered after the strength and sealing requirements are met, so that when the strength and sealing requirements under the same conditions are met, the volume of space occupied by the anti-overflow ring 15 is smaller, the foaming space of the heat insulation foaming layer 13 of the electric water heater 10 is increased, so that more foaming materials can be filled in the electric water heater 10, and further the heat insulation performance of the electric water heater 10 is improved.
The high-density material for preparing the anti-overflow ring 15 may include a high-density sponge material, a rubber material, and both a high-density sponge and a rubber material. For example, in some embodiments, the anti-overflow ring 15 has two layers, one is a high density sponge layer and the other is a rubber layer.
It will be appreciated that if the thickness of the anti-overflow ring 15 is too thin, the rigidity thereof will be difficult to meet the requirements; if the thickness of the anti-overflow ring 15 is too thick, the cost will be too high. In this embodiment, the thickness of the anti-overflow ring 15 is preferably 3 mm to 10 mm to achieve both rigidity and cost.
Further, in order to facilitate the assembly of the above-mentioned anti-overflow ring 15 and the flange 14, the thickness of the anti-overflow ring 15 is reduced from the end of the anti-overflow ring 15 close to the inner container 12 to the end far away from the inner container 12, so that the installation of the anti-overflow ring 15 is facilitated. Meanwhile, in order to achieve the fit between the overflow preventing ring 15 and the flange plate 14, the outer diameter of the flange plate 14 is also in a reduced arrangement in a direction away from the liner opening 121, that is, the fit between the flange plate 14 and the overflow preventing ring 15 is achieved, so that the outer surface of the flange plate 14 is attached to the inner surface of the overflow preventing ring 15.
Since the anti-overflow ring 15 itself has a certain elasticity and plasticity and is made of a high-density material, the anti-overflow ring 15 can have a good extensibility and stretching property. In this embodiment, the anti-overflow ring 15 may form a tight fit with the flange 14, i.e. the inner diameter of the anti-overflow ring 15 is equal to or smaller than the outer diameter of the flange 14, and the anti-overflow ring 15 is in a stretched deformation state when the anti-overflow ring 15 is assembled on the flange 14. In this embodiment, by reducing the diameter of the anti-overflow ring 15, the cost of raw materials for producing the anti-overflow ring 15 can be significantly reduced, and resources can be saved.
According to the technical scheme, the anti-overflow ring 15 made of the high-density material is adopted, so that the anti-overflow ring 15 meets the strength and sealing requirements, the thickness of the anti-overflow ring 15 is reduced, the foaming space of the heat preservation foaming layer 13 of the electric water heater 10 is enlarged, more foaming materials can be filled in the electric water heater 10, and the heat preservation performance of the electric water heater 10 is further improved.
Further, referring to fig. 5, since the flange 14 is connected to the inner container 12, heat on the inner container 12 is easily transferred to the flange 14, and in order to prevent heat from being transferred from the flange 14, a heat insulation layer 16 is disposed on a surface of the anti-overflow ring 15, so as to reduce secondary heat loss. The heat insulation layer 16 may be disposed on one side of the anti-overflow ring 15 close to the flange plate 14, or disposed on one side of the anti-overflow ring 15 far away from the flange plate 14, or disposed on both sides of the anti-overflow ring 15, i.e. the heat insulation layer 16 may be disposed on both inner and outer surfaces of the anti-overflow ring 15. Hereinafter, the heat insulating layer 16 will be specifically described.
In this embodiment, the heat insulation layer 16 is a heat reflection layer 161 disposed on the surface of the anti-overflow ring 15, and by disposing the heat reflection layer 161, heat loss from the flange 14 in a manner of radiating infrared heat can be avoided, and the heat reflection layer 161 has a good reflection effect on the infrared heat, and can reflect the infrared heat radiated on the flange 14 back to the flange 14 direction, so that the heat of the flange 14 is always collected at the anti-overflow ring 15. It will be appreciated that, because of the good anti-radiation properties of metal, the heat reflective layer 161 may comprise a metal film applied to the surface of the flange 14, or may comprise a metal coating sprayed on the surface of the flange 14, or may be a combination of both. For example, in one embodiment, when two heat reflecting layers 161 are provided, one of the layers is in the form of a metal film and the other layer is in the form of a metal coating. Of course, the form of the insulating layer 16 is not limited thereto, and the insulating layer 16 may also prevent the secondary heat loss on the flange 14 by other means, for example, the insulating layer 16 may further include a heat insulating coating layer disposed on the inner surface of the anti-overflow ring 15, and the heat transfer from the flange 14 to the anti-overflow ring 15 can be further reduced by selecting a coating material with a lower heat conductivity coefficient.
Referring to fig. 4, it should be further noted that, in this embodiment, in order to fill more foaming material into the electric water heater 10, a plurality of blind holes 151 are formed on a side of the anti-overflow ring 15 away from the flange 14, and the blind holes 151 can be used to fill the foaming material, so as to increase the filling amount of the foaming material and improve the heat insulation performance of the electric water heater 10.
It can be understood that after the blind hole 151 is filled with the foaming material, the foaming material is cured and formed to form the thermal insulation foaming layer 13, at this time, the thermal insulation foaming layer 13 forms a column in the blind hole 151, so that the strength of the inside of the anti-overflow ring 15 is improved, and meanwhile, the contact area between the anti-overflow ring 15 and the thermal insulation foaming layer 13 is increased, so that the anti-overflow ring 15 and the thermal insulation foaming layer 13 can be tightly connected to realize the compactness of the electric water heater 10.
Of course, in this embodiment, a groove may be formed on a side of the anti-overflow ring 15 away from the flange 14, and foam material may be filled in the groove, so as to increase the filling amount of the foam material in the electric water heater 10, and after the foam material is cured and formed, the solid insulation foam layer 13 may form a corresponding protruding rib in the groove, and the protruding rib is embedded in the groove, so that the anti-overflow ring 15 and the insulation foam layer 13 form a tight and firm connection. It will be appreciated that in some other embodiments, the grooves may be patterned on the surface of the ring 15, and the pattern may be filled with foaming material.
The foregoing description is only of the preferred embodiments of the present invention and is not intended to limit the scope of the invention, and all equivalent structural changes made by the description of the present invention and the accompanying drawings or direct/indirect application in other related technical fields are included in the scope of the invention.
Claims (7)
1. An electric water heater, comprising:
the inner container is provided with a container opening at one end;
the flange is connected with the liner and is arranged corresponding to the liner opening and the liner;
the anti-overflow ring is sleeved on the flange plate and is made of high-density materials;
the inner container is wrapped in the heat-insulating foaming layer of the electric water heater, and one side of the anti-overflow ring, which is far away from the flange, is abutted with the heat-insulating foaming layer; the thickness of the overflow preventing ring is 3 mm to 10 mm; one side of the overflow preventing ring far away from the flange plate is provided with a plurality of blind holes; the thickness of the anti-overflow ring is reduced from one end of the anti-overflow ring, which is close to the inner container, to one end of the anti-overflow ring, which is far away from the inner container; the external diameter of ring flange also is the shrink setting in the direction of keeping away from courage mouth for the surface of ring flange is laminated with the internal surface of anti-overflow circle.
2. The electric water heater of claim 1, wherein the material from which the anti-overflow ring is made comprises a high density sponge and/or rubber material.
3. An electric water heater as claimed in any one of claims 1 to 2, wherein the anti-overflow ring is provided with a heat reflective layer on the side facing the flange and/or on the side facing away from the flange.
4. An electric water heater as claimed in claim 3, wherein the heat reflective layer comprises a metal coating and/or a metal film.
5. The electric water heater as claimed in claim 3, wherein the heat reflecting layer comprises a composite film formed by laminating a plastic film and an aluminum film, wherein one side of the plastic film close to the anti-overflow ring is attached to the surface of the anti-overflow ring, and the aluminum film is arranged on one side of the plastic film opposite to the anti-overflow ring.
6. An electric water heater as claimed in any one of claims 1 to 2, wherein a recess is provided in a side surface of the anti-overflow ring remote from the flange.
7. The electric water heater as claimed in any one of claims 1 to 2, wherein said anti-overflow ring is a tight fit with said flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710115449.6A CN108507180B (en) | 2017-02-28 | 2017-02-28 | Electric water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710115449.6A CN108507180B (en) | 2017-02-28 | 2017-02-28 | Electric water heater |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108507180A CN108507180A (en) | 2018-09-07 |
| CN108507180B true CN108507180B (en) | 2023-12-22 |
Family
ID=63374328
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710115449.6A Active CN108507180B (en) | 2017-02-28 | 2017-02-28 | Electric water heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108507180B (en) |
Citations (7)
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| JP2011012953A (en) * | 2010-08-24 | 2011-01-20 | Imae Kogyo Kk | Heat insulation apparatus for hot water storage tank for heat pump water heater |
| CN201983446U (en) * | 2011-01-27 | 2011-09-21 | 海尔集团公司 | Electric water heater |
| CN203837271U (en) * | 2014-04-09 | 2014-09-17 | 海尔集团公司 | Electric water heater end cover capable of preventing material overflow of container opening and electric water heater |
| CN104110834A (en) * | 2014-04-10 | 2014-10-22 | 芜湖美的厨卫电器制造有限公司 | Electric water heater |
| CN205641502U (en) * | 2016-05-12 | 2016-10-12 | 芜湖美的厨卫电器制造有限公司 | Water heater |
| CN106052109A (en) * | 2016-07-11 | 2016-10-26 | 芜湖美的厨卫电器制造有限公司 | Water storage type electric water heater and manufacturing method thereof |
| CN206583076U (en) * | 2017-02-28 | 2017-10-24 | 芜湖美的厨卫电器制造有限公司 | Electric heater |
-
2017
- 2017-02-28 CN CN201710115449.6A patent/CN108507180B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011012953A (en) * | 2010-08-24 | 2011-01-20 | Imae Kogyo Kk | Heat insulation apparatus for hot water storage tank for heat pump water heater |
| CN201983446U (en) * | 2011-01-27 | 2011-09-21 | 海尔集团公司 | Electric water heater |
| CN203837271U (en) * | 2014-04-09 | 2014-09-17 | 海尔集团公司 | Electric water heater end cover capable of preventing material overflow of container opening and electric water heater |
| CN104110834A (en) * | 2014-04-10 | 2014-10-22 | 芜湖美的厨卫电器制造有限公司 | Electric water heater |
| CN205641502U (en) * | 2016-05-12 | 2016-10-12 | 芜湖美的厨卫电器制造有限公司 | Water heater |
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Non-Patent Citations (1)
| Title |
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| Publication number | Publication date |
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| CN108507180A (en) | 2018-09-07 |
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