CN204630023U - Electric heater - Google Patents
Electric heater Download PDFInfo
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- CN204630023U CN204630023U CN201520245093.4U CN201520245093U CN204630023U CN 204630023 U CN204630023 U CN 204630023U CN 201520245093 U CN201520245093 U CN 201520245093U CN 204630023 U CN204630023 U CN 204630023U
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- electric heater
- vacuum heat
- insulating
- insulating plate
- inner bag
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Abstract
The utility model discloses a kind of electric heater, comprising: shell; Inner bag, described inner bag is located in described shell; Composite heat-insulating layer, described composite heat-insulating layer is filled between the inner surface of described shell and the outer surface of described inner bag, described composite heat-insulating layer comprises: vacuum heat-insulating plate, the coated described inner bag of described vacuum heat-insulating plate and described vacuum heat-insulating plate is preset with the thermometer hole of its thickness direction through; Insulating foam layer, the outer surface of the coated described vacuum heat-insulating plate of described insulating foam layer.According to the electric heater of the utility model embodiment, destroy vacuum heat-insulating plate when the intrinsic coefficient of energy dissipation of test 24h without the need to boring, also without the need to the thermocouple of special pre-buried test, improve production efficiency of assembling, eliminate extra thermocouple cost, simultaneously the excellent thermal insulation performance of electric heater.
Description
Technical field
The utility model relates to hot water facility technical field, more specifically, relates to a kind of electric heater.
Background technology
Country is more and more higher to the energy conservation standard in electric heater use procedure, user there has also been higher demand to electric heater performance and outward appearance aspect simultaneously, wishing that electric heater is meeting under power saving, energy-conservation prerequisite, takes up room the smaller the better, that is wishing that its volume is the smaller the better.
The insulation material used in electric heater is all generally polyurethane (Polyurethane, be called for short PU) the rear rigid polyurethane foam heat insulation material (its thermal conductivity factor is about 20mW/mK) formed of foaming, be filled in the cavity between inner container of electric water heater and shell.In order to improve the heat-insulating property of electric heater further, need to introduce the more excellent heat insulating material of heat-insulating property.Namely vacuum heat-insulating plate is wherein a kind of.
Vacuum heat-insulating plate (Vacuum Insulation Panel, be called for short VIP) be a kind of vacuum thermal insulating material with excellent thermal insulation heat-insulating property, what adopt is vacuum heat-insulation principle, its structure is made up of three parts usually: barrier and the heat-insulating core material be filled in this barrier and gettering material, can be encapsulated by barrier after interior heat-insulating core material is evacuated.
Vacuum heat-insulating plate is the environment protecting thermal insulating material that current heat-insulating property is the most excellent, and not containing any ozone consuming substances (ODS), be utilize vacuum insulating heat transfer principle to realize ultra high efficiency insulation, its thermal conductivity factor is lower than 6mW/mK.
The intrinsic coefficient of energy dissipation of 24h of electric heater is the technical indicator directly reflecting its integral heat insulation performance and energy-saving effect, according to the method for testing in GB " GB 21519-2008 storage-type electric water heater energy efficiency market and efficiency grade ", during the test intrinsic coefficient of energy dissipation of 24h, need the heat-insulation layer between the position of regulation boring destruction inner bag and shell, then surperficial outside the tank relevant position is buried the thermocouple of thermometric underground.But apply the electric heater of vacuum heat-insulating plate, because vacuum heat-insulating plate wherein can not be destroyed, therefore must pre-buried several thermocouples in corresponding position in advance, greatly reduce production, efficiency of assembling, and extra thermocouple cost can be increased.
Utility model content
The utility model is intended to solve one of technical problem in correlation technique at least to a certain extent.For this reason, the utility model proposes a kind of electric heater, described electric heater good heat insulating, efficiency of assembling is high and cost is low.
According to electric heater of the present utility model, comprising: shell; Inner bag, described inner bag is located in described shell; Composite heat-insulating layer, described composite heat-insulating layer is filled between the inner surface of described shell and the outer surface of described inner bag, described composite heat-insulating layer comprises: vacuum heat-insulating plate, the coated described inner bag of described vacuum heat-insulating plate and described vacuum heat-insulating plate is preset with the thermometer hole of its thickness direction through; Insulating foam layer, the outer surface of the coated described vacuum heat-insulating plate of described insulating foam layer.
According to electric heater of the present utility model, destroy vacuum heat-insulating plate when the intrinsic coefficient of energy dissipation of test 24h without the need to boring, also without the need to the thermocouple of special pre-buried test, improve production efficiency of assembling, eliminate extra thermocouple cost, simultaneously the excellent thermal insulation performance of electric heater.
In addition, following additional technical characteristic can also be had according to electric heater of the present utility model:
According to an embodiment of the present utility model, described insulating foam layer covers the inner surface of described vacuum heat-insulating plate.
According to an embodiment of the present utility model, described thermometer hole comprises spaced multiple.
According to an embodiment of the present utility model, the shape and size of described thermometer hole are corresponding with the shape and size of the thermocouple for thermometric.
According to an embodiment of the present utility model, outer peripheral face and the both sides end face of described vacuum heat-insulating plate are provided with described thermometer hole.
According to an embodiment of the present utility model, described inner bag is provided with the outstanding parts that it outwardly extends, and described vacuum heat-insulating plate is provided with corresponding with described parts position dodges hole.
According to an embodiment of the present utility model, described parts and described hole of dodging comprise multiple respectively.
According to an embodiment of the present utility model, described parts comprise at least one in water inlet pipe mouth, effluent pipe mouth, sewage draining exit, flange, wall hanging.
According to an embodiment of the present utility model, each described parts with corresponding described in dodge the shape and size in hole identical.
According to an embodiment of the present utility model, described insulating foam layer is formed as polyurethane insulation coating.
Additional aspect of the present utility model and advantage will part provide in the following description, and part will become obvious from the following description, or be recognized by practice of the present utility model.
Accompanying drawing explanation
Fig. 1 is the structural representation of the electric heater according to the utility model embodiment;
Fig. 2 is the structural representation of the inner bag of electric heater according to the utility model embodiment.
Reference numeral:
Electric heater 100;
Inner bag 1; Composite heat-insulating layer 2; Shell 3; Magnesium rod 4; Outlet pipe 5; Water inlet pipe 6; Heater 7; Electric control chamber 8;
Vacuum heat-insulating plate 21; Insulating foam layer 22; Thermometer hole 201;
Wall hanging 101; Water inlet pipe mouth 102; Effluent pipe mouth 103; Sewage draining exit 104; Flange 105.
Detailed description of the invention
Be described below in detail embodiment of the present utility model, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Be exemplary below by the embodiment be described with reference to the drawings, be intended to for explaining the utility model, and can not be interpreted as restriction of the present utility model.
The electric heater 100 according to the utility model embodiment is described in detail below in conjunction with accompanying drawing.
Shown in seeing figures.1.and.2, comprise shell 3, inner bag 1 and composite heat-insulating layer 2 according to the electric heater 100 of the utility model embodiment.Inner bag 1 is located in shell 3, and composite heat-insulating layer 2 is filled between the inner surface of shell 3 and the outer surface of inner bag 1.Composite heat-insulating layer 2 comprises vacuum heat-insulating plate 21 and insulating foam layer 22.The coated inner bag of vacuum heat-insulating plate 21 1 and vacuum heat-insulating plate 21 is preset with the thermometer hole 201 of its thickness direction through, the outer surface of the coated vacuum heat-insulating plate 21 of insulating foam layer 22.
In other words, electric heater 100 composite heat-insulating layer 2 that comprises shell 3, inner bag 1 and be filled between shell 3 and inner bag 1.Composite heat-insulating layer 2 comprises vacuum heat-insulating plate 21 and insulating foam layer 22.Vacuum heat-insulating plate 21 is coated on the outside of inner bag 1, the outer surface of the coated vacuum heat-insulating plate 21 of insulating foam layer 22.Thus; insulating foam layer 22 can wrap up completely, seal up from outside by vacuum heat-insulating plate 21; under vacuum heat-insulating plate 21 can be made to be in temperature is lower and stable, humidity is less environment; therefore, it is possible to protect vacuum heat-insulating plate 21 well; enable the vacuum of vacuum heat-insulating plate 21 inside continue guaranteed, heat insulation effect is excellent.
Vacuum heat-insulating plate 21 is reserved with thermometer hole 201 during fabrication, the inner surface of the through vacuum heat-insulating plate 21 of thermometer hole 201 and outer surface.Thermocouple through the exterior surface of thermometer hole 201 with inner bag 1, thus can realize the test of the intrinsic coefficient of energy dissipation of electric heater 10024h.
Wherein, in the process of the test of the intrinsic coefficient of energy dissipation of 24h, without the need to the hole for placing thermocouple drilled through extra on vacuum heat-insulating plate 21, the thermometer hole 201 only need reserved, prevent and the boring of vacuum heat-insulating plate 21 is destroyed, the insulating power of vacuum heat-insulating plate 21 can not be affected, the good heat insulating of electric heater 100.Meanwhile, also without the need to pre-buried multiple thermocouple again in electric heater 100, only when testing, thermocouple need be set again, greatly reduce and producing and efficiency of assembling, reducing manufacturing cost.
Here, inner surface refers to the one side of the water storage chamber towards inner bag 1 inside, and outer surface refers to the one side of water storage chamber dorsad, namely towards the one side of the outside of water heater.
Thus, according to the electric heater 100 of the utility model embodiment, by presetting the thermometer hole 201 of its thickness direction through on vacuum heat-insulating plate 21, vacuum heat-insulating plate 21 is destroyed without the need to boring when the intrinsic coefficient of energy dissipation of test 24h, also without the need to the thermocouple of special pre-buried test, improve production efficiency of assembling, eliminate extra thermocouple cost, simultaneously the excellent thermal insulation performance of electric heater 100.
Preferably, the inner surface of insulating foam layer 22 covering vacuum heat-insulating shield 21.That is, the insulating foam layer 22 not only outer surface of coated vacuum heat-insulating plate 21 but also the inner surface of covering vacuum heat-insulating shield 21.Vacuum heat-insulating plate 21 is arranged on the inside of insulating foam layer 22.Thus; insulating foam layer 22 can better protect vacuum heat-insulating plate 21; under vacuum heat-insulating plate 21 can be in temperature is lower and stable, humidity is less environment; the vacuum of vacuum heat-insulating plate 21 inside can continue guaranteed; heat-insulating property improves further, electric heater 100 high insulating effect.
It should be noted that, the structure is in FIG a kind of sectional view of electric heater 100 of simplification, wherein, the hatching of vacuum heat-insulating plate 21 and insulating foam layer 22 etc. is not shown.
Alternatively, insulating foam layer 22 is formed as polyurethane insulation coating.Polyurethane is convenient to foaming, polyurethane insulation coating is convenient to manufacture and high insulating effect.
According to embodiments more of the present utility model, thermometer hole 201 comprises spaced multiple.Namely multiple thermometer hole 201 is spaced apart is arranged on vacuum heat-insulating plate 21, carries out the demand of thermometric to meet to diverse location in electric heater 100.In Fig. 2, label is the placement location of mark "×" thermocouple when showing the test intrinsic coefficient of energy dissipation of 24h of 106.The both sides end face of inner bag 1 and outer peripheral face all need to arrange thermocouple.Correspondingly, in embodiments more of the present utility model, outer peripheral face and the both sides end face of vacuum heat-insulating plate 21 are equipped with thermometer hole 201.
Thus, when electric heater 100 is provided with the vacuum heat-insulating plate 21 of this structure, when carrying out the test of the intrinsic coefficient of energy dissipation of 24h, thermocouple can be plugged in the thermometer hole 201 of vacuum heat-insulating plate, thus realize the both sides end face of thermocouple at inner bag 1 and the setting of outer peripheral face, avoid and hole on vacuum heat-insulating plate 21, prevent vacuum heat-insulating plate 21 to be damaged.
The shape and size of thermometer hole 201 can be set to the shape and size that various thermocouple all can be general, also can arrange according to the shape and size of the thermocouple of the concrete model of thermometric.Such as, the shape and size of thermometer hole 201 are corresponding with the shape and size of the thermocouple for thermometric.Namely the shape and size of thermometer hole 201 equal the shape and size of thermocouple.Thus, thermocouple namely can be enable to be placed in thermometer hole 201, the size of the reduction thermometer hole 201 can tried one's best again, reduce thermometer hole 201 to the impact of the heat-insulating property of vacuum heat-insulating plate 21.
According to embodiments more of the present utility model, inner bag 1 is provided with the outstanding parts that it outwardly extends, and vacuum heat-insulating plate 21 is provided with corresponding with parts position dodges hole.Dodge hole and effectively can avoid the impact of parts on vacuum heat-insulating plate 21, easy for installation, and the area of effective coverage of vacuum heat-insulating plate 21 can be increased as far as possible, reduce the quantity of vacuum heat-insulating plate 21 edge heat bridge.
Parts all can for multiple with the quantity dodging hole.Wherein, parts can comprise at least one in water inlet pipe mouth 102, effluent pipe mouth 103, sewage draining exit 104, flange 105, wall hanging 101.Wherein, each parts are identical with the corresponding shape and size dodging hole, and namely each parts are of similar shape and size with corresponding hole of dodging.Thus, the area coverage of vacuum heat-insulating plate 21 can be increased greatly.
Here; it should be noted that; although the size dodging hole during design equals the size of corresponding parts; but in actual manufacture process; due to reasons such as errors, the size dodging hole can be greater than the size of parts slightly, makes after vacuum heat-insulating plate 21 and inner bag 1 assembled; dodge between hole and parts and can have gap, this also will within protection domain of the present utility model.And in follow-up manufacture, polyurethane foam material can be flow between the outer surface of vacuum heat-insulating plate 21 and inner bag 1 by these gaps.
As shown in Figure 2, have water storage chamber in inner bag 1, inner bag 1 is provided with water inlet pipe mouth 102, effluent pipe mouth 103, sewage draining exit 104, flange 105 and wall hanging 101.Water inlet pipe mouth 102 is provided with water inlet pipe 6, and effluent pipe mouth 103 is provided with outlet pipe 5.Water storage cavity indoor are provided with magnesium rod 4, and one end of magnesium rod 4 extends to sewage draining exit 104.Flange 105 place is provided with the electric control chamber 8 controlling electric heater 100 and run.Water storage cavity indoor are provided with the heater 7 be electrically connected with electric control chamber 8.Wall hanging 101 is located on the rear surface of inner bag 1, and wall hanging 101 is connected with wall after stretching out shell 3, to be arranged on wall by electric heater 100.Wherein, water inlet pipe 6 and outlet pipe 5 all adopt electricity-insulation wall water pipe, to improve the safety in utilization of electric heater 100.
In sum, have the following advantages according to electric heater 100 tool of the utility model embodiment:
1, excellent thermal insulation performance.Vacuum heat-insulating plate 21 has very excellent insulation, heat-proof quality, the utility model is successfully introduced in the composite heat-insulating layer 2 in electric heater 100, heat-insulating property and the energy-saving effect of electric heater 100 greatly can be increased under the prerequisite that composite heat-insulating layer 2 thickness is constant, and then reduce its coefficient of energy dissipation, or under the prerequisite reaching same heat insulation effect, the thickness of further reduction composite heat-insulating layer 2, and then reduce volume and the deadweight of whole electric heater 100, improve its security performance.
2, insulation construction is arranged rationally.On inner bag 1 except with water inlet pipe mouth 102, effluent pipe mouth 103, outside the position of the correspondences such as flange 105 and wall hanging 101, be provided with the very excellent vacuum heat-insulating plate of heat-insulating property 21, increase the area of effective coverage of vacuum heat-insulating plate 21 as much as possible, and vacuum heat-insulating plate 21 is arranged on the centre position of polyurethane insulation coating 22, the polyurethane insulation coating 22 of its periphery has excellent insulation, heat-proof quality, the vacuum heat-insulating plate 21 of its inside can be made to be in temperature lower and stable, under the environment that humidity is less, therefore, it is possible to protect vacuum heat-insulating plate 21 well, the vacuum of its inside is continued guaranteed.
3, production efficiency is high.The vacuum heat-insulating plate 21 of reasonable in design is selected in the utility model, by arranging corresponding thermometer hole 201 on vacuum heat-insulating plate 21, during the intrinsic coefficient of energy dissipation of 24h of test electric heater 100, without the need to the thermocouple of special pre-buried thermometric, existing production, efficiency of assembling can not be reduced, and extra thermocouple cost can not be increased.
Following two steps roughly can be divided into according to the manufacture of the electric heater 100 of the utility model embodiment and assembling process.
The first step: make the vacuum heat-insulating plate 21 being reserved with thermometer hole 201.According to the structure of the inner bag 1 of electric heater 100, vacuum heat-insulating plate 21 reasonable in design, and be reserved with the thermometer hole 201 identical with size with the shape of thermocouple in the position (i.e. position shown in 106 in Fig. 2) corresponding with the placement location of thermocouple.
Second step: make electric heater 100.Vacuum heat-insulating plate 21 is arranged on the centre position between inner bag 1 and shell 3, cast polyurethane foamed material again, polyurethane foam material is filled in inner bag 1 and vacuum heat-insulating plate 21 and between shell 3 and vacuum heat-insulating plate 21, vacuum heat-insulating plate 21 wraps up, seals up by the active adhesive property utilizing polyurethane foam shaping, adopt other correlation step of conventional electric heater 100 production method afterwards again, efficient energy-saving electric water heater 100 can be produced.
Wherein, in foaming process, polyurethane foam material also can flow in thermometer hole 201, is filled by thermometer hole 201.Now, only the polyurethane foam material in thermometer hole 201 need be plucked out can vacate thermometer hole 201 completely when needing the test intrinsic coefficient of energy dissipation of 24h, thermocouple can be located in thermometer hole 201.In the process, vacuum heat-insulating plate 21 still can not be subject to boring and destroy, and heat-insulating property is unaffected.
In above manufacture process, eliminate the step at the pre-buried thermocouple of the outer surface of inner bag 1, production efficiency improves.The electric heater 100 manufactured is a kind of reasonable in design, excellent thermal insulation performance, energy-saving electric water heater 100 that production efficiency is high.According to the electric heater 100 of the utility model embodiment other form and operation be known for the person of ordinary skill of the art, be not described in detail at this.
In description of the present utility model, it will be appreciated that, orientation or the position relationship of the instruction such as term " " center ", " on ", D score, "front", "rear", " interior ", " outward ", " radial direction ", " circumference " they be based on orientation shown in the drawings or position relationship; be only the utility model and simplified characterization for convenience of description; instead of instruction or imply the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as restriction of the present utility model.
In description of the present utility model, the implication of " multiple " is two or more, unless otherwise expressly limited specifically.
In the utility model, unless otherwise clearly defined and limited, the term such as term " installation ", " being connected ", " connection ", " fixing " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or integral; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals or the interaction relationship of two elements.For the ordinary skill in the art, the concrete meaning of above-mentioned term in the utility model can be understood as the case may be.
In the description of this description, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present utility model or example.In this manual, to the schematic representation of above-mentioned term not must for be identical embodiment or example.And the specific features of description, structure, material or feature can combine in one or more embodiment in office or example in an appropriate manner.In addition, when not conflicting, the feature of the different embodiment described in this description or example and different embodiment or example can carry out combining and combining by those skilled in the art.
Although illustrate and described embodiment of the present utility model above, be understandable that, above-described embodiment is exemplary, can not be interpreted as restriction of the present utility model, those of ordinary skill in the art can change above-described embodiment, revises, replace and modification in scope of the present utility model.
Claims (10)
1. an electric heater, is characterized in that, comprising:
Shell;
Inner bag, described inner bag is located in described shell;
Composite heat-insulating layer, described composite heat-insulating layer is filled between the inner surface of described shell and the outer surface of described inner bag, and described composite heat-insulating layer comprises:
Vacuum heat-insulating plate, the coated described inner bag of described vacuum heat-insulating plate and described vacuum heat-insulating plate is preset with the thermometer hole of its thickness direction through;
Insulating foam layer, the outer surface of the coated described vacuum heat-insulating plate of described insulating foam layer.
2. electric heater according to claim 1, is characterized in that, described insulating foam layer covers the inner surface of described vacuum heat-insulating plate.
3. electric heater according to claim 1 and 2, is characterized in that, described thermometer hole comprises spaced multiple.
4. electric heater according to claim 3, is characterized in that, the shape and size of described thermometer hole are corresponding with the shape and size of the thermocouple for thermometric.
5. electric heater according to claim 3, is characterized in that, outer peripheral face and the both sides end face of described vacuum heat-insulating plate are provided with described thermometer hole.
6. electric heater according to claim 1 and 2, is characterized in that, described inner bag is provided with the outstanding parts that it outwardly extends, and described vacuum heat-insulating plate is provided with corresponding with described parts position dodges hole.
7. electric heater according to claim 6, is characterized in that, described parts and described hole of dodging comprise multiple respectively.
8. electric heater according to claim 6, is characterized in that, described parts comprise at least one in water inlet pipe mouth, effluent pipe mouth, sewage draining exit, flange, wall hanging.
9. electric heater according to claim 7, is characterized in that, each described parts with corresponding described in dodge the shape and size in hole identical.
10. electric heater according to claim 1, is characterized in that, described insulating foam layer is formed as polyurethane insulation coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520245093.4U CN204630023U (en) | 2015-04-21 | 2015-04-21 | Electric heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520245093.4U CN204630023U (en) | 2015-04-21 | 2015-04-21 | Electric heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204630023U true CN204630023U (en) | 2015-09-09 |
Family
ID=54049041
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520245093.4U Expired - Fee Related CN204630023U (en) | 2015-04-21 | 2015-04-21 | Electric heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204630023U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106226110A (en) * | 2016-09-14 | 2016-12-14 | 中华人民共和国无锡出入境检验检疫局 | Storage-type electric water heater performance test standard environment system |
| CN108507154A (en) * | 2017-02-28 | 2018-09-07 | 芜湖美的厨卫电器制造有限公司 | Electric heater |
-
2015
- 2015-04-21 CN CN201520245093.4U patent/CN204630023U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106226110A (en) * | 2016-09-14 | 2016-12-14 | 中华人民共和国无锡出入境检验检疫局 | Storage-type electric water heater performance test standard environment system |
| CN108507154A (en) * | 2017-02-28 | 2018-09-07 | 芜湖美的厨卫电器制造有限公司 | Electric heater |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150909 Termination date: 20210421 |