CN206847050U - Electric heater - Google Patents
Electric heater Download PDFInfo
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- CN206847050U CN206847050U CN201720188669.7U CN201720188669U CN206847050U CN 206847050 U CN206847050 U CN 206847050U CN 201720188669 U CN201720188669 U CN 201720188669U CN 206847050 U CN206847050 U CN 206847050U
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- electric heater
- vacuum
- heat
- inner bag
- insulating layer
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Abstract
The utility model discloses a kind of electric heater, wherein, the electric heater includes：Inner bag；Thermal insulation foaming layer, outside the inner bag, the inner bag is coated in the thermal insulation foaming layer；And vacuum heat-insulating layer, between the inner bag and the thermal insulation foaming layer, the vacuum heat-insulating layer is spliced by some vacuum insulation panels.Technical solutions of the utility model are spliced to form vacuum heat-insulating layer by some vacuum insulation panels, vacuum insulation panel broken invalid at one can't constantly cause other vacuum insulation panels to fail, so that vacuum heat-insulating layer still can play a part of insulation, the service life of vacuum heat-insulating layer is improved, and then has ensured that electric heater has good heat insulation effect.
Description
Technical field
Living electric apparatus field is the utility model is related to, more particularly to a kind of electric heater.
Background technology
The inner bag of existing electric heater is typically made up of metal material, and heat easily distributes from the courage wall of inner bag, causes electricity
The heat-insulating property of water heater is poor.Vacuum insulation panel (Vacuum Insulation Panel, abbreviation are set in the outside of inner bag
VIP plates) heat insulation effect of inner bag can be strengthened, but existing vacuum insulation panel is generally monoblock, its internal vacuum layer is only
There is one, when there is breakage gas leakage at one on the surface of vacuum insulation panel, monoblock vacuum insulation panel can all fail, its heat-insulation and heat-preservation effect
Fruit substantially reduces, and then causes the heat-insulating property of electric heater poor.
Utility model content
Main purpose of the present utility model is to propose a kind of electric heater, it is intended to improves the vacuum insulation panel on electric heater
Practicality, avoid at vacuum insulation panel one damaged and global failure.
To achieve the above object, the utility model proposes electric heater include：
Inner bag；
Thermal insulation foaming layer, outside the inner bag, the inner bag is coated in the thermal insulation foaming layer；And
Vacuum heat-insulating layer, between the inner bag and the thermal insulation foaming layer, if the vacuum heat-insulating layer is by dry vacuum
Thermal insulation board is spliced.
Preferably, the vacuum heat-insulating layer is bonded towards the surface of the inner bag with the outer surface of the inner bag.
Preferably, each vacuum insulation panel includes venting bags and aluminium foil bag, and core, institute are filled with the venting bags
The edge for stating venting bags is sewed with seal line, and the venting bags are covered by the aluminium foil bag by vacuumize process.
Preferably, the adjacent aluminium foil bag is fixedly connected.
Preferably, the quantity of the venting bags is multiple that multiple venting bags are uniformly distributed in the aluminium foil bag.
Preferably, the edge of the adjacent venting bags is connected with each other.
Preferably, prepare the core material include silica, glass fibre and hard polyurethane foam in one kind or
It is a variety of.
Preferably, the vacuum heat-insulating layer is provided with heat towards the side of the inner bag and/or backwards to the side of the inner bag
Reflecting layer.
Preferably, the heat-reflecting layer includes metal film and/or metal coating.
Preferably, the heat-reflecting layer includes the composite membrane being laminated by plastic foil and aluminium film, the plastic foil laying
In the surface of the vacuum heat-insulating layer, the aluminium film is located at side of the plastic foil away from the vacuum heat-insulating layer.
Technical solutions of the utility model are spliced to form vacuum heat-insulating layer by some vacuum insulation panels, the vacuum at one every
Hot plate broken invalid can't constantly cause other vacuum insulation panels to fail so that vacuum heat-insulating layer still can play insulation
Heat-insulated effect, improves the service life of vacuum heat-insulating layer, and then has ensured that electric heater has good heat insulation effect.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
Or the required accompanying drawing used is briefly described in description of the prior art, it should be apparent that, drawings in the following description are only
It is some embodiments of the utility model, for those of ordinary skill in the art, is not paying the premise of creative work
Under, other accompanying drawings can also be obtained according to the structure shown in these accompanying drawings.
Fig. 1 is schematic diagram of the utility model electric heater at a visual angle；
Fig. 2 is along the sectional view of P-P lines in Fig. 1；
Fig. 3 is the structural representation of vacuum insulation panel in the embodiment of the utility model electric heater one；
Fig. 4 is the structural representation of vacuum heat-insulating layer in the utility model electric heater；
Fig. 5 is the structural representation of vacuum insulation panel in another embodiment of the utility model electric heater；
Fig. 6 is the structural representation of vacuum heat-insulating layer and heat-reflecting layer in the utility model electric heater；
Fig. 7 is the structural representation of the heat-reflecting layer of the utility model electric heater in one embodiment.
Drawing reference numeral explanation：
| Label | Title | Label | Title |
| 10 | Electric heater | 141 | Venting bags |
| 11 | Housing | 142 | Aluminium foil bag |
| 12 | Inner bag | 15 | Heat-reflecting layer |
| 13 | Thermal insulation foaming layer | 151 | Plastic foil |
| 14 | Vacuum heat-insulating layer | 152 | Aluminium film |
| 14a | Vacuum insulation panel |
Realization, functional characteristics and the advantage of the utility model purpose will be described further referring to the drawings in conjunction with the embodiments.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describing, it is clear that described embodiment is only part of the embodiment of the present utility model, rather than all
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not making creative work premise
Lower obtained every other embodiment, belong to the scope of the utility model protection.
If it is to be appreciated that related in the utility model embodiment directionality instruction (such as upper and lower, left and right, it is preceding,
Afterwards ...), then directionality instruction be only used for explain it is relative between each part under a certain particular pose (as shown in drawings)
Position relationship, motion conditions etc., if the particular pose changes, directionality instruction also correspondingly changes therewith.
If, should " first ", " the in addition, relate to the description of " first ", " second " etc. in the utility model embodiment
Two " etc. description is only used for describing purpose, and it is not intended that instruction or implying its relative importance or implicit indicating meaning
The quantity of the technical characteristic shown.Thus, " first " is defined, the feature of " second " can express or implicitly include at least one
Individual this feature.In addition, the technical scheme between each embodiment can be combined with each other, but must be with ordinary skill
Personnel can be implemented as basis, and this technical side is will be understood that when the combination appearance of technical scheme is conflicting or can not realize
The combination of case is not present, also not within the protection domain of the requires of the utility model.
The utility model proposes a kind of electric heater.
Referring to figs. 1 to Fig. 4, in the utility model embodiment, the electric heater 10 includes：
Inner bag 12；
Thermal insulation foaming layer 13, outside the inner bag 12, the inner bag 12 is coated in the thermal insulation foaming layer 13；And
Vacuum heat-insulating layer 14, between the inner bag 12 and the thermal insulation foaming layer 13, the vacuum heat-insulating layer 14 by
Some vacuum insulation panel 14a are spliced.
Usually, in electric heater 10, inner bag more than 12 is made of metal material, and inner bag 12 is located in housing 11, and
Set along the length direction of housing 11.In order to prevent the temperature of inner bag 12 to be outwardly lost in, filled out between inner bag 12 and housing 11
Filled with thermal insulation foaming layer 13, for thermal insulation foaming layer 13 outside inner bag 12, thermal insulation foaming layer 13 coats inner bag 12 in the inner.And
The thermal insulation foaming layer 13 is preferably hard polyurethane foam layer, compared to the expanded material of common foaming layer, polyurethane foam
Thermal conductivity factor it is relatively low, its heat preservation and insulation is more preferable, can improve the heat-insulating property of electric heater 10.The shape of thermal insulation foaming layer 13
Expanded material high pressure injection intracavitary to be foamed is molded into generally by high-pressure foam equipment.Preferably, above-mentioned insulation
Foaming layer 13 be preferably it is foaming-formed, with reduce number that high-pressure foam needed for the electric heater 10 operates and when
Between, improve manufacture efficiency.
In order to further improve the heat insulation effect of electric heater 10, can above-mentioned inner bag 12 and thermal insulation foaming layer 1313 it
Between set vacuum heat-insulating layer 14.Wherein, vacuum heat-insulating layer 14 is realized by vacuum insulation panel 14a form.Vacuum heat-insulation
Plate 14a is combined by filling core and vacuum protection top layer, and it can be effectively prevented from heat transfer caused by cross-ventilation, because
This thermal conductivity factor can be greatly reduced, less than 0.004w/ ㎡ .k.What deserves to be explained is in the vacuum insulation panel 14a having, vacuum
Thermal insulation board 14a is to coat ventilative support core by vacuum diaphragm, and by vacuum pumping technology, heat transfer is deadened to reach.Vacuum
Thermal insulation board 14a is heat-insulating environment-protection material, has splendid heat-proof quality, and pollution-free during manufacture and use.With other
Material is compared, and vacuum insulation panel 14a possesses extremely low thermal conductivity factor, heat preservation technology require it is identical when have insulation layer thickness it is thin,
Small volume, it is in light weight the advantages of, thus the field of electric heater 10 can be applied to.It is but true in electric heater 10 at present
The empty majority of thermal insulation layer 14 is global design, i.e., vacuum heat-insulating layer 14 is made of a monoblock vacuum insulation panel 14a, and it is internally formed
Vacuum chamber there was only one, when vacuum insulation panel 14a surface have at one occur it is damaged when, easily cause whole vacuum insulation panel
14a vacuum chamber all fails, and then causes vacuum insulation panel 14a can not keep its good heat-proof quality again so that vacuum every
Thermosphere 14 can not obtain effective heat-blocking action.
In order to solve the above problems, in the present embodiment, above-mentioned vacuum heat-insulating layer 14 is by several vacuum insulation panels
What 14a was mutually spliced to form, wherein, each vacuum insulation panel 14a vacuum chamber is all separate.Thus, actually make
During, at one during vacuum insulation panel 14a broken invalids, other vacuum insulation panels 14a vacuum chamber is unaffected, and then
The service life of vacuum heat-insulating layer 14 is extended, improves the performance of vacuum heat-insulating layer 14.
In the present embodiment, each vacuum insulation panel 14a for being used for being spliced to form vacuum heat-insulating layer 14 includes venting bags 141
With aluminium foil bag 142, venting bags 141 are interior to be filled with core, and the edge of venting bags 141 is sewed with seal line, and venting bags 141 are wrapped by
In the aluminium foil bag 142 Jing Guo vacuumize process.Wherein, in order to improve the permeability of venting bags 141, the core that bag is internal is prevented
Material is revealed, and the venting bags 141 can be fire resistance fibre felt or seamless cloth bag, due to silica, glass fibre and rigid polyurethane
Foam material itself has preferable adsorption effect to air, it may have preferable support strength, thus it is used as vacuum heat-insulation
Plate 14a core material, thus the core in the vacuum insulation panel 14a in the present embodiment can use earth silicon material,
Glass fiber material can be used, polyurethane rigid foam material, or the mixture of above-mentioned material can also be used.
It should be noted that vacuum heat-insulating layer 14 is spliced by above-mentioned multiple vacuum insulation panel 14a, adjacent aluminium foil
The edge of bag 142 is mutually permanently connected.For example, the edge of adjacent aluminium foil bag 142 can be stitched together by suture,
It can be fixedly connected by adhesive means, be not especially limited herein.
Reference picture 5, in order to strengthen vacuum insulation panel 14a heat-insulating capability, while vacuum insulation panel 14a intensity is improved,
The quantity of venting bags 141 in above-mentioned vacuum insulation panel 14a is multiple, and multiple venting bags 141 uniformly divide in the aluminium foil bag 142
Cloth.Further, in order to prevent venting bags 141 from being moved in aluminium foil bag 142, the edge of the plurality of venting bags 141 is connected with each other,
The edge of adjacent venting bags 141 can be stitched together by suture, can also be fixedly connected by adhesive means, herein
It is not especially limited.
For vacuum heat-insulating layer 14, be spliced by then passing through multiple vacuum insulation panel 14a, and each vacuum every
Hot plate 14a aluminium foil bag 142 all possesses certain flexibility, thus this vacuum heat-insulating layer 14 is flexible, so can with it is interior
The outer surface of courage 12 fully contacts.Preferably, in the present embodiment, the vacuum heat-insulating layer 14 is towards the surface of inner bag 12 and inner bag
12 outer surface fitting.Because above-mentioned thermal insulation foaming layer 13 is filled between vacuum heat-insulating layer 14 and housing 11, vacuum every
Thermosphere 14 more towards inner bag 12, is then available for the space for filling thermal insulation foaming layer 13 bigger, thus the insulation effect of electric heater 10
Fruit also can further improve.Meanwhile thermal insulation foaming layer 13, in foamed forming process, expanded material can produce larger foaming pressure
Power, the pressure can be acted on vacuum heat-insulating layer 14, and when vacuum heat-insulating layer 14 is bonded with inner bag 12, inner bag 12 can be played to true
The supporting role of empty thermal insulation layer 14, and then vacuum heat-insulating layer 14 is avoided by foamed material crimp.
Technical solutions of the utility model are spliced to form vacuum heat-insulating layer 14 by some vacuum insulation panel 14a, at one
Vacuum insulation panel 14a broken invalids can't constantly cause other vacuum insulation panel 14a to fail so that vacuum heat-insulating layer 14 according to
It is old to play a part of insulation, the service life of vacuum heat-insulating layer 14 is improved, and then ensured that electric heater 10 has
There is good heat insulation effect.
Reference picture 6, it is further, above-mentioned in order to prevent the heat on inner bag 12 to be outwardly lost in the form of heat radiation
Heat-reflecting layer 15 is provided with the surface of vacuum heat-insulating layer 14, the infrared heat that inner bag 12 radiates is reflected back to the side of inner bag 12
To.Wherein, the heat-reflecting layer 15 can be arranged on vacuum heat-insulating layer 14 towards the side of inner bag 12, can also be arranged on vacuum every
Thermosphere 14 is backwards to the side of inner bag 12.In the embodiment having, in order to further strengthen the reflecting effect of heat-reflecting layer 15, the heat
Reflecting layer 15 is two layers, is separately positioned on vacuum heat-insulating layer 14 towards the side of inner bag 12 and the side back to inner bag 12.
It should be noted that setting the another object of heat-reflecting layer 15, it is to protect above-mentioned vacuum heat-insulating layer 14,
Prevent aluminium foil bag 142 or venting bags 141 from being hit by sharp object, cause aluminium foil bag 142 or venting bags 141 to be failed because puncturing.
Especially during by being bonded of vacuum heat-insulating layer 14 and inner bag 12, because inner bag 12 is after metal welding procedure, inner bag
12 outer surface easily remains hard and sharp welding slag, and welding slag easily punctures vacuum insulation panel 14a aluminium foil bag 142,
The vacuum structure in aluminium foil bag 142 is destroyed, and then vacuum insulation panel 14a is failed.When vacuum heat-insulating layer 14 is towards inner bag 12
When side sets heat-reflecting layer 15, the heat-reflecting layer 15 can play certain cushioning effect, avoid vacuum insulation panel 14a aluminium
Paper tinsel bag 142 directly contacts with welding slag, and then prevents vacuum insulation panel 14a from puncturing failure by welding slag.
It is understood that because metal has good antiradiation characteristic, the infrared heat that inner bag 12 can be radiated
The direction of inner bag 12 is reflected back, and then prevents infrared heat from radiating and is outwardly radiated through vacuum heat-insulating layer 14.Above-mentioned heat-reflecting layer
15 can include being laid in the metal film on the surface of vacuum heat-insulating layer 14, and the surface of vacuum heat-insulating layer 14 can also be formed at including spraying
Metal coating, it is of course also possible to be both combinations.For example, in one embodiment, when being provided with two layers of heat-reflecting layer 15
When, wherein one layer uses metal film, another layer of form using metal coating.
Further, reference picture 7, in the embodiment having, above-mentioned heat-reflecting layer 15 can also include being laid in vacuum heat-insulating layer
Composite membrane on 14, the composite membrane are laminated by plastic foil 151 and aluminium film 152, wherein, plastic foil 151 is towards vacuum heat-insulation
14 side of layer are bonded with the surface of vacuum heat-insulating layer 14, and aluminium film 152 is located at side of the plastic foil 151 away from vacuum heat-insulating layer 14.
Compare metal coating and the heat-reflecting layer 15 of metal film class, and the plastic foil 151 in the composite membrane possesses certain toughness and strong
Degree so that heat-reflecting layer 15 effectively can play cushioning effect to the welding slag on inner bag 12, prevent welding slag to vacuum every
Thermosphere 14 causes damage.
Preferred embodiment of the present utility model is the foregoing is only, not thereby limits the scope of the claims of the present utility model,
Every equivalent structure change under inventive concept of the present utility model, made using the utility model specification and accompanying drawing content
Change, or directly/be used in other related technical areas indirectly and be included in scope of patent protection of the present utility model.
Claims (10)
- A kind of 1. electric heater, it is characterised in that including：Inner bag；Thermal insulation foaming layer, outside the inner bag, the inner bag is coated in the thermal insulation foaming layer；AndVacuum heat-insulating layer, between the inner bag and the thermal insulation foaming layer, the vacuum heat-insulating layer is by some vacuum heat-insulations Plate is spliced.
- 2. electric heater as claimed in claim 1, it is characterised in that the vacuum heat-insulating layer towards the surface of the inner bag with The outer surface fitting of the inner bag.
- 3. electric heater as claimed in claim 1 or 2, it is characterised in that each vacuum insulation panel include venting bags and Aluminium foil bag, the venting bags are interior to be filled with core, and the edge of the venting bags is sewed with seal line, and the venting bags are covered by By in the aluminium foil bag of vacuumize process.
- 4. electric heater as claimed in claim 3, it is characterised in that the adjacent aluminium foil bag is fixedly connected.
- 5. electric heater as claimed in claim 3, it is characterised in that the quantity of the venting bags is multiple described to be multiple Airbag is uniformly distributed in the aluminium foil bag.
- 6. electric heater as claimed in claim 5, it is characterised in that the edge of the adjacent venting bags is connected with each other.
- 7. electric heater as claimed in claim 3, it is characterised in that preparing the material of the core includes silica, glass One or more in glass fiber and hard polyurethane foam.
- 8. electric heater as claimed in claim 1, it is characterised in that the vacuum heat-insulating layer is towards the side of the inner bag And/or it is provided with heat-reflecting layer backwards to the side of the inner bag.
- 9. electric heater as claimed in claim 8, it is characterised in that the heat-reflecting layer includes metal film and/or metal applies Layer.
- 10. electric heater as claimed in claim 8, it is characterised in that the heat-reflecting layer is included by plastic foil and aluminum membranous layer The folded composite membrane formed, the plastic foil are laid in the surface of the vacuum heat-insulating layer, and the aluminium film is remote located at the plastic foil From the side of the vacuum heat-insulating layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720188669.7U CN206847050U (en) | 2017-02-28 | 2017-02-28 | Electric heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720188669.7U CN206847050U (en) | 2017-02-28 | 2017-02-28 | Electric heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206847050U true CN206847050U (en) | 2018-01-05 |
Family
ID=60789648
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720188669.7U Active CN206847050U (en) | 2017-02-28 | 2017-02-28 | Electric heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206847050U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112747457A (en) * | 2021-01-29 | 2021-05-04 | 中山市恒乐电器有限公司 | Heat exchange structure for water heater |
-
2017
- 2017-02-28 CN CN201720188669.7U patent/CN206847050U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112747457A (en) * | 2021-01-29 | 2021-05-04 | 中山市恒乐电器有限公司 | Heat exchange structure for water heater |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20221103 Address after: 241000 west side of 3 / F, No.5 office building, new energy and new materials gathering area, Fuzhou Road, Jiangbei District, Wuhu City, Anhui Province Patentee after: Wuhu Midea intelligent kitchen electricity Manufacturing Co.,Ltd. Address before: 241009 Wan Chun East Road, East District, Wuhu economic and Technological Development Zone, Anhui Patentee before: WUHU MIDEA KITCHEN AND BATH APPLIANCES MFG. Co.,Ltd. |
|
| TR01 | Transfer of patent right |