CN108507156A - Electric heater - Google Patents

Electric heater Download PDF

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Publication number
CN108507156A
CN108507156A CN201710115364.8A CN201710115364A CN108507156A CN 108507156 A CN108507156 A CN 108507156A CN 201710115364 A CN201710115364 A CN 201710115364A CN 108507156 A CN108507156 A CN 108507156A
Authority
CN
China
Prior art keywords
end cover
shell
electric heater
liner
muscle
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.)
Granted
Application number
CN201710115364.8A
Other languages
Chinese (zh)
Other versions
CN108507156B (en
Inventor
余远明
曲绍鹤
刘文彪
赵中闯
邹树平
王丽利
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wuhu Midea Smart Kitchen Appliance Manufacturing Co Ltd
Original Assignee
Wuhu Midea Kitchen and Bath Appliances Manufacturing Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Wuhu Midea Kitchen and Bath Appliances Manufacturing Co Ltd filed Critical Wuhu Midea Kitchen and Bath Appliances Manufacturing Co Ltd
Priority to CN201710115364.8A priority Critical patent/CN108507156B/en
Priority to PCT/CN2017/082931 priority patent/WO2018157467A1/en
Publication of CN108507156A publication Critical patent/CN108507156A/en
Application granted granted Critical
Publication of CN108507156B publication Critical patent/CN108507156B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24HFLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H1/00Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
    • F24H1/18Water-storage heaters
    • F24H1/181Construction of the tank
    • F24H1/182Insulation
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24HFLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H1/00Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
    • F24H1/18Water-storage heaters
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24HFLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H1/00Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
    • F24H1/18Water-storage heaters
    • F24H1/185Water-storage heaters using electric energy supply
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24HFLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H9/00Details
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24HFLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H9/00Details
    • F24H9/0005Details for water heaters

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)
  • Thermal Insulation (AREA)

Abstract

The present invention discloses a kind of electric heater, including:Shell is arranged in the tubular of both ends open;Liner is installed in the shell, and is had and offered courage mouth in the first end and second end being oppositely arranged, the second end on the length extending direction of the shell;And first end cover, it is covered on an open end of the shell, and be arranged close to the first end of the liner;Insulating foam layer is equipped between the inner surface of the first end cover and the outer surface of the first end.Technical scheme of the present invention can improve the heat insulation effect of liner.

Description

Electric heater
Technical field
The present invention relates to household appliance technical field, more particularly to a kind of electric heater.
Background technology
Electric heater generally include in both ends open shell, in shell and one end be equipped with courage mouth liner, with And the end cap of the opening of the separate courage mouth of casing.Currently, to inner container insulated, to be usually arranged one between the end cap and liner Eps foam part (polystyrene foam part).However, eps foam part is typically to be cut by the eps foam of monoblock, with It is easy leaking heat at cooperation between end cap, liner and shell, and causes the heat insulation effect of liner poor.
Invention content
The main object of the present invention is to propose a kind of electric heater, it is intended to improve the heat insulation effect of liner.
To achieve the above object, electric heater proposed by the present invention includes:
Shell is arranged in the tubular of both ends open;
Liner is installed in the shell, and on the length extending direction of the shell in the be oppositely arranged One end and second end, the second end offer courage mouth;And
First end cover is covered on an open end of the shell, and is arranged close to the first end of the liner;
Insulating foam layer is equipped between the inner surface of the first end cover and the outer surface of the first end.
Preferably, the insulating foam layer is hard polyurethane foam layer.
Preferably, the first end cover is equipped with reinforcing rib.
Preferably, the first end cover includes that an intermediate region and one are located on the peripheral region of the intermediate region;
The reinforcing rib includes set on the first reinforcing rib of the intermediate region and set on the second of the peripheral region Reinforcing rib.
Preferably, first reinforcing rib includes that multiple mutually parallel arrangement of first strip muscle and multiple phases are set parallel The the second strip muscle set, the second strip muscle intersect with the first strip muscle.
Preferably, second reinforcing rib include multiple circumferential directions along the first end cover extend cyclic annular muscle, with And the third strip muscle that multiple radial directions along the first end cover extend, the third strip muscle and the cyclic annular muscle phase It hands over.
Preferably, the first end cover is made by metal material.
Preferably, the first end cover includes the metal material layer being mutually stacked and plastic material layer.
Preferably, limit flange is equipped in the open end of the shell being connect with the first end cover, the limit is turned over Limited ring groove of the opening towards another open end is formed between side and the shell;The first end cover include lid ontology, with And from the periphery of the lid ontology to the installation flange extended away from the direction of the liner;The installation flange, which is embedded, to be installed on The limited ring groove.
Preferably, the first end cover further includes the sealing flange of the free end of the connection installation flange, the sealing Flange extends to towards the direction of the liner, and the outer surface of the sealing flange is bonded with the inner surface of the shell and sets It sets.
Foaming is equipped in technical scheme of the present invention, between the inner surface and the outer surface of liner first end of first end cover to protect Warm layer, it will be understood that the insulating foam layer is may make by the way that high-pressure foam equipment injects expanded material high pressure is molding The insulating foam layer is fitted closely with first end cover, liner first end and shell, in this way, compared to first end cover with it is interior The technical solution of eps foam part, the technical program made of setting is cut between courage first end can reduce the heat of liner first end Turnover rate is measured, to improve the heat insulation effect of liner.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with The structure shown according to these attached drawings obtains other attached drawings.
Fig. 1 is the part-structure schematic diagram of one embodiment of electric heater of the present invention;
Fig. 2 is the enlarged structure schematic diagram at A in Fig. 1;
Fig. 3 is the cross section structure schematic diagram of the first end cover of electric heater in Fig. 1;
Fig. 4 is the enlarged structure schematic diagram at B in Fig. 3;
Fig. 5 is the structural schematic diagram of the first end cover of electric heater in Fig. 1;
Fig. 6 is the enlarged structure schematic diagram at C in Fig. 3.
Drawing reference numeral explanation:
Label Title Label Title
1 Shell 11 Limit flange
12 Limited ring groove 2 Liner
20 Courage mouth 3 First end cover
31 End cap ontology 32 Flange is installed
33 Connect flange 34 Avoid annular groove
35 Seal flange 36 Reinforcing rib
361 First reinforcing rib 361a First strip muscle
361b Second strip muscle 362 Second reinforcing rib
362a Cyclic annular muscle 362b Third strip muscle
301 Intermediate region 302 Peripheral region
303 Metal material layer 304 Plastic material layer
4 First installation lid 51 Insulating foam layer
52 Hard polyurethane foam layer
The embodiments will be further described with reference to the accompanying drawings for the realization, the function and the advantages of the object of the present invention.
Specific implementation mode
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 describes, it is clear that described embodiment is only a part of the embodiment of the present invention, instead of all the embodiments.Base Embodiment in the present invention, those of ordinary skill in the art obtained without creative efforts it is all its His embodiment, shall fall within the protection scope of the present invention.
If it is to be appreciated that related in the embodiment of the present invention directionality instruction (such as up, down, left, right, before and after ...), Then directionality instruction be only used for explaining relative position relation under a certain particular pose (as shown in the picture) between each component, Motion conditions etc., if the particular pose changes, directionality instruction also correspondingly changes correspondingly.
If in addition, relating to the description of " first ", " second " etc. in the embodiment of the present invention, it is somebody's turn to do " first ", " second " etc. Description be used for description purposes only, be not understood to indicate or imply its relative importance or implicitly indicate indicated skill The quantity of art feature." first " is defined as a result, the feature of " second " can explicitly or implicitly include at least one spy Sign.In addition, the technical solution between each embodiment can be combined with each other, but must be with those of ordinary skill in the art's energy It is enough realize based on, when the knot that conflicting or cannot achieve when will be understood that this technical solution occurs in the combination of technical solution Conjunction is not present, also not the present invention claims protection domain within.
The present invention proposes a kind of electric heater.
Referring to Fig.1, in an embodiment of the present invention, which includes:
Shell 1 is arranged in the tubular of both ends open;
Liner 2 is installed in shell 1, and on the length extending direction of shell 1 in the first end that is oppositely arranged and Second end, second end offer courage mouth 20;And
First end cover 3 is covered on an open end of shell 1, and close to the setting of the first end of liner 2.
In the present embodiment, insulating foam layer is equipped between the outer surface of 2 first end of inner surface and liner of first end cover 3 51, it will be understood that the insulating foam layer 51 is may make by the way that high-pressure foam equipment injects expanded material high pressure is molding The insulating foam layer 51 is fitted closely with first end cover 3,2 first end of liner and shell 1, in this way, compared in first end The technical solution of eps foam part made of setting is cut between 2 first end of lid 3 and liner, the technical program can reduce liner 2 the The heat loss rate of one end, to improve the heat insulation effect of liner 2.
In the present embodiment, the insulating foam layer 51 between 2 first end of first end cover 3 and liner is preferably hard polyaminoester Foaming layer, compared to the expanded material of common foaming layer, the heat-insulating property of polyurethane foam is more preferable, can improve electric heater Heat-insulating property.Preferably, which is to use to contain foaming agent LBA (anti-form-1-chloro- 3,3,3- trifluoropropyls Alkene) and/or the expanded material institute high-pressure foam of foaming agent FEA-1100 (hexafluorobutene) it is molding, foaming agent LBA and foaming agent FEA-1100 (hexafluorobutene) is green-blowing agent, meets environmental requirement.In addition, in the present embodiment, the inner surface of shell 1 It is also preferably provided with hard polyurethane foam layer 52 between the peripheral surface of liner 2, and the inner surface of first end cover 3 and liner 2 the Hard polyurethane foam layer between the outer surface of one end and shell 1 inner surface and the peripheral surface of liner 2 is preferred It is foaming-formed, to reduce number and the time of the high-pressure foam operation needed for the electric heater, improves manufacture efficiency.
If the thickness for the insulating foam layer 51 being appreciated that between 2 first end of first end cover 3 and liner is excessively thin, it is difficult to full Sufficient thermal requirements;If its thickness is blocked up, the volume of electric heater is larger and required cost is higher;In the present embodiment, first end cover The thickness of insulating foam layer 51 between 3 and 2 first end of liner is preferably 5 millimeters~20 millimeters, to take into account heat preservation and cost.
Further, which further includes the second end cover (not shown) set on 1 other end of shell, the second end cover Corresponding courage mouth 20 offers operation aperture, and detachable cover is equipped with the second installation lid (not shown) in the operation aperture.This implementation In example, the pipeline structure that the setting of second end cover and the second installation lid can avoid at 2 courage mouth 20 of liner is exposed outside.In addition, the Two opening for installation lid unload setting, can be convenient for the repair and replacement of the pipeline structure.
In the present embodiment, the outer surface of first end cover 3 is also preferably equipped with the first installation lid 4, the first installation lid 4 and the Two installation lids are in the both ends for being symmetrically located at shell 1, i other words, the first installation lid 4 is of similar shape with the second installation lid And size, in this way, may make the left and right ends of the electric heater that there is almost the same surface structure.In addition, the first installation lid 4 It may also function as the effect of enhancing 3 intensity of first end cover.
It is appreciated that insulating foam layer 51 is by the way that high-pressure foam equipment injects expanded material high pressure is molding, because This, in foaming process, first end cover 3 can be by prodigious blow pressure.
Together referring to Figure 2 to Figure 4, in the present embodiment, limit is equipped in the open end of shell 1 being connect with first end cover 3 Flange 11, and limited ring groove 12 of the opening towards another open end is formed between the limit flange 11 and shell 1.First end cover 3 including lid ontology and from the periphery of lid ontology to the installation flange 32 extended away from the direction of liner 2.The installation flange 32 are embedded and are installed on limited ring groove 12, in this way, when first end cover 3 is when by high-pressure foam pressure outwardly, the limit flange 11 can form blocking to the installation flange 32 that is embedded in limited ring groove 12, and liner 2 the is faced away to limit first end cover 3 The direction of one end is detached from shell 1.In addition, under high-pressure foam pressure, the free end of installation flange 32 can closely abut spacing ring The slot bottom of slot 12 is tightly connected so as to be formed between first end cover 3 and shell 1, to avoid the expanded material of high pressure from first It overflows junction between end cap 3 and shell 1.
Further, which further includes the connection flange 33 of connection end cap ontology 31 and installation flange 32, the company It connects flange 33 to towards the direction of liner 2 to extend, and is formed with an opening between the connection flange 33 and installation flange 32 and deviates from The evacuation annular groove of liner 2.In the present embodiment, while installation flange 32 is embedded and is installed on limited ring groove 12, flange 11 is limited Also it is embedded and is installed in the evacuation annular groove, and make the outer surface week of end cap ontology 31 along the corresponding opening end end face with shell 1 Linking, in this way, the corresponding opening end end face that can avoid shell 1 forms protrusion, Ke Yili at the outer surface edge of end cap ontology 31 Solution protrudes if being formed, and dust etc. is easy to be deposited on, and is not easy to the cleaning of electric heater.In addition, in the present embodiment, this is kept away The opening of annular groove is allowed preferably, in setting is opened, the evacuation annular groove to be embedded in order to limit flange 11 on the direction of liner 2.
Further, which further includes the sealing flange 35 of the free end of connection installation flange 32, which turns over Side 35 extends to towards the direction of liner 2, and the outer surface of the sealing flange 35 is bonded setting with the inner surface of shell 1, in this way, By way of face paste is closed face, high-pressure foam material can be extended and overflow the distance being required through, to further increase first end The leakproofness connected between lid 3 and shell 1.In addition, in the present embodiment, installation flange 32 and the junction for sealing flange 35 are preferred It is being in tapered setting on the direction of liner 2, in order to embedded limited ring groove 12.
In the present embodiment, to further increase the leakproofness connected between first end cover 3 and shell 1, flange 35 is sealed It is preferred that Nian Jie with shell 1 by sticky glue, with what is generated due to the not deformation of phase by the filling of sticky glue, 35 appearance of flange is sealed Gap between 1 inner surface of face and shell.Particularly, still there is certain elastic sticky glue after solidification can be used.Right the design It is without being limited thereto, in other embodiment, elastic seal ring (not shown) can be also set between sealing flange 35 and shell 1, with By the adaptive elasticity of elastic seal ring, the deformation gap between sealing 35 outer surface of flange and 1 inner surface of shell is eliminated. In the present invention, when being provided with the elastic seal ring between sealing flange 35 and shell 1, the outer surface for sealing flange 35 is preferred Equipped with the positioning ring groove (not shown) being arranged for elastic seal ring, generates and take off during installation to avoid the elastic seal ring Displacement from sealing flange 35 improves the convenience assembled between first end cover 3 and shell 1;Certainly, the elastic seal ring part It is revealed in positioning ring groove, the inner surface of shell 1 is contradicted with elasticity, to lift-off seal effect.
With reference to Fig. 5, further, in the present embodiment, become to avoid first end cover 3 from generating plasticity because of blow pressure Shape influences user's use, and first end cover 3 is additionally provided with reinforcing rib 36, to enhance the rigidity of first end cover 3 by reinforcing rib 36.Separately Outside, during carrying electric heater, first end cover 3 may also can be collided pressure due to not expected collision, because This, is enhanced the rigidity of first end cover 3 by reinforcing rib 36, can also reduce first end cover 3 and generate plastic deformation because of impact pressure Probability.
In addition, in the present embodiment, reinforcing rib 36 is preferably disposed to the inner surface of first end cover 3, appears to avoid reinforcing rib 36 Outside, to reduce the probability that dust etc. deposits on 3 outer surface of first end cover.
Further, first end cover 3 includes the peripheral region that an intermediate region 301 and one is located on intermediate region 301 302.Preferably, the first installation lid 4 is installed on intermediate region 301, and the outer surface of intermediate region 301 is heavy set on peripheral region 302 outer surface, and the outer surface of the first installation lid 4 is mutually connected with the outer surface of peripheral region 302, in this way, can avoid It is formed between the outer and the interior edge of peripheral region 302 of first installation lid 4 and easily cuts the step surface of hand, and be unfavorable for carrying.This reality It applies in example, reinforcing rib 36 includes that the first reinforcing rib 361 set on intermediate region 301 and second set on peripheral region 302 add Strengthening tendons 362, i other words, each region in first end cover 3 is equipped with reinforcing rib 36, rigid good to ensure.So originally set Count it is without being limited thereto, in other embodiment, also can only peripheral region 302 be arranged reinforcing rib.
In the present embodiment, the first reinforcing rib 361 and the second reinforcing rib 362 are usually disposed as different shapes.Specifically, One reinforcing rib 361 includes multiple mutually parallel arrangement of first strip muscle 361a and multiple mutually parallel arrangement of second strip muscle 361b, and the second strip muscle 361b intersects with the first strip muscle 361a, to enhance intermediate region 301 along the first strip muscle 361a long Spend ability of anti-deformation on direction and on the second strip muscle 361b length directions.Preferably, multiple first strip muscle 361a and multiple second strip muscle 361b is respective uniform intervals setting, so that the intermediate region 301 of first end cover 3 Intensity it is more uniform.In addition, the second strip muscle 361b preferably intersects vertically with the first strip muscle 361a.It should be noted that The design is without being limited thereto, and in other embodiment, the first strip muscle 361a also can only be arranged on intermediate region 301.
In the present embodiment, the second reinforcing rib 362 includes the cyclic annular muscle that multiple circumferential directions along first end cover 3 extend Third the strip muscle 362b, third strip muscle 362b and ring-type that 362a and multiple radial directions along first end cover 3 extend Muscle 362a intersection, in this way, can enhance peripheral region 302 along circumferential direction with the ability of anti-deformation of radial direction.Similarly, this is more A ring-type muscle 362a is preferably arranged along the radially outward uniform intervals of first end cover 3, the then preferred edges multiple third strip muscle 362b The circumferential direction uniform intervals of first end cover 3 are laid.Right the design is without being limited thereto, in other embodiment, in peripheral region 302 The cyclic annular muscle 362a also can be only set.
In addition, in the present embodiment, to further increase the integral rigidity of first end cover 3, reinforcing rib 36 and first end cover 3 It is preferred that being integrally formed structures.Specifically, reinforcing rib 36 and first end cover 3 can be the plastic parts being integrally formed, or Person is the integrally formed sheet metal component of punching press, or is casting integrated molding metalwork, the invention is not limited in this regard.
It should be noted that in some other embodiments of the present invention, to enhance the rigidity of first end cover 3, can also incite somebody to action First end cover 3 is made of metal material.Preferably, first end cover 3 is made by stainless steel or aluminum alloy material.Electric heating Hydrophone is usually mounted to the toilet with wet environment, and stainless steel is not easy to the property got rusty, and can extend first end cover 3 Service life.Compared to stainless steel, the rigidity of aluminum alloy material is poor, but cost is relatively low.Right the design is without being limited thereto, In other embodiment, other higher metal materials of intensity also can be used in first end cover 3.
In addition, in the still further embodiments of the present invention, with reference to Fig. 6, first end cover 3 can also include that mutually stacking is set The metal material layer 303 and plastic material layer 304 set, compared to common plastic parts first end cover 3, metal material layer 303 can So that first end cover 3 has preferably rigidity.Preferably, plastic material layer 304 is equipped with two layers, and the two layers of plastic material layers 304 are divided into the opposite sides of metal material layer 303.Electric heater is usually mounted to the toilet with wet environment, will be golden Belong to material layers 303 in a manner of interlayer to be arranged between two plastic material layers 304, can avoid to enhance rigid metal material Layer 303 is corroded, to extend the service life of first end cover 3.Preferably, metal material be steel material or aluminum alloy material, Steel material and aluminum alloy material are easily obtained, wherein steel material is rigidly more preferable, and aluminum alloy material cost is relatively low;Right the design is not It is limited to this, in other embodiment, other higher metal materials of intensity also can be used in first end cover 3.In addition, plastic material is excellent It is selected as ABS plastic material, POM plastic material or PP plastic materials, these plastic material intensity are higher, can make first end cover 3 High intensity is more guaranteed;Certainly, in other embodiment, other higher plastic materials of intensity may be used.
If being appreciated that, the thickness of first end cover 3 is excessively thin, and rigidity will be difficult to meet the requirements;If the thickness of first end cover 3 Blocked up, cost will be excessively high.In the present invention, the thickness H of first end cover 3 is preferably 0.3 millimeter~3 millimeters (see Fig. 4), with simultaneous Care for rigidity and cost.
The foregoing is merely the preferred embodiment of the present invention, are not intended to limit the scope of the invention, every at this Under the inventive concept of invention, using equivalent structure transformation made by description of the invention and accompanying drawing content, or directly/use indirectly In the scope of patent protection that other related technical areas are included in the present invention.

Claims (10)

1. a kind of electric heater, which is characterized in that including:
Shell is arranged in the tubular of both ends open;
Liner is installed in the shell, and is had on the length extending direction of the shell in the first end being oppositely arranged And second end, the second end offer courage mouth;And
First end cover is covered on an open end of the shell, and is arranged close to the first end of the liner;
Insulating foam layer is equipped between the inner surface of the first end cover and the outer surface of the first end.
2. electric heater as described in claim 1, which is characterized in that the insulating foam layer is hard polyurethane foam layer.
3. electric heater as described in claim 1, which is characterized in that the first end cover is equipped with reinforcing rib.
4. electric heater as claimed in claim 3, which is characterized in that the first end cover includes an intermediate region, Yi Jiyi It is located on the peripheral region of the intermediate region;
The reinforcing rib includes that the first reinforcing rib set on the intermediate region and second set on the peripheral region are reinforced Muscle.
5. electric heater as claimed in claim 4, which is characterized in that first reinforcing rib includes multiple mutually parallel arrangement of First strip muscle and multiple mutually parallel arrangement of second strip muscle, the second strip muscle intersect with the first strip muscle.
6. electric heater as claimed in claim 4, which is characterized in that second reinforcing rib includes multiple along the first end The third strip muscle that the cyclic annular muscle and multiple radial directions along the first end cover that the circumferential direction of lid extends extend, institute Third strip muscle is stated with the cyclic annular muscle to intersect.
7. electric heater as described in claim 1, which is characterized in that the first end cover is made by metal material.
8. electric heater as described in claim 1, which is characterized in that the first end cover includes the metal material being mutually stacked Matter layer and plastic material layer.
9. such as claim 1 to 8 any one of them electric heater, which is characterized in that the shell with the first end cover It is equipped with limit flange in the open end of connection, opening is formed between the limit flange and the shell towards another open end Limited ring groove;The first end cover includes lid ontology and from the periphery of the lid ontology to away from the direction of the liner The installation flange of extension;The installation flange, which is embedded, is installed on the limited ring groove.
10. electric heater as claimed in claim 9, which is characterized in that the first end cover further includes that the connection installation is turned over The sealing flange of the free end on side, the sealing flange extend to towards the direction of the liner, and the sealing flange is outer Surface is bonded setting with the inner surface of the shell.
CN201710115364.8A 2017-02-28 2017-02-28 Electric water heater Active CN108507156B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201710115364.8A CN108507156B (en) 2017-02-28 2017-02-28 Electric water heater
PCT/CN2017/082931 WO2018157467A1 (en) 2017-02-28 2017-05-03 Electric water heater

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710115364.8A CN108507156B (en) 2017-02-28 2017-02-28 Electric water heater

Publications (2)

Publication Number Publication Date
CN108507156A true CN108507156A (en) 2018-09-07
CN108507156B CN108507156B (en) 2020-10-16

Family

ID=63369743

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201710115364.8A Active CN108507156B (en) 2017-02-28 2017-02-28 Electric water heater

Country Status (2)

Country Link
CN (1) CN108507156B (en)
WO (1) WO2018157467A1 (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201531997U (en) * 2009-08-03 2010-07-21 海尔集团公司 Electric water heater
US20110168349A1 (en) * 2004-05-29 2011-07-14 Rule David D Systems, Devices and Methods for Regulating Temperatures of Tanks, Containers and Contents Therein
JP2015052412A (en) * 2013-09-06 2015-03-19 株式会社コロナ Heat insulating material structure for hot water storage tank
CN105190219A (en) * 2013-01-30 2015-12-23 Ej包曼(伯明罕)有限公司 Shell and tube heat exchanger, end cover and method of manufacturing same
CN205807852U (en) * 2016-05-17 2016-12-14 九阳股份有限公司 A kind of electric heater
CN206670019U (en) * 2017-02-28 2017-11-24 芜湖美的厨卫电器制造有限公司 Electric heater

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110168349A1 (en) * 2004-05-29 2011-07-14 Rule David D Systems, Devices and Methods for Regulating Temperatures of Tanks, Containers and Contents Therein
CN201531997U (en) * 2009-08-03 2010-07-21 海尔集团公司 Electric water heater
CN105190219A (en) * 2013-01-30 2015-12-23 Ej包曼(伯明罕)有限公司 Shell and tube heat exchanger, end cover and method of manufacturing same
JP2015052412A (en) * 2013-09-06 2015-03-19 株式会社コロナ Heat insulating material structure for hot water storage tank
CN205807852U (en) * 2016-05-17 2016-12-14 九阳股份有限公司 A kind of electric heater
CN206670019U (en) * 2017-02-28 2017-11-24 芜湖美的厨卫电器制造有限公司 Electric heater

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Publication number Publication date
WO2018157467A1 (en) 2018-09-07
CN108507156B (en) 2020-10-16

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