CN202709474U - Electric heater capable of avoiding air leakage - Google Patents
Electric heater capable of avoiding air leakage Download PDFInfo
- Publication number
- CN202709474U CN202709474U CN 201220377784 CN201220377784U CN202709474U CN 202709474 U CN202709474 U CN 202709474U CN 201220377784 CN201220377784 CN 201220377784 CN 201220377784 U CN201220377784 U CN 201220377784U CN 202709474 U CN202709474 U CN 202709474U
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- heat
- pipe
- electric heater
- pipeline
- heater
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Abstract
The utility model provides an electric heater capable of avoiding air leakage, which comprises a heating body, a pipeline and electric heating pipes, wherein the pipeline and the electric heating pipes are arranged in the heating body in parallel; the opening of the pipeline is communicated with liquid to be heated; at least one heat-conductive insulation barrier layer is arranged between the liquid to be heated and the electric heating pipe in the heating body; and the heat-conductive insulation barrier layer can be a heat-conductive insulation film tightly sleeved on the outer wall of the electric heating pipe and can also be a heat-conductive insulation pipe embedded in the pipeline or a metal pipe, such as an aluminum pipe, a copper pipe and a stainless steel pipe, which is embedded in the pipeline, wherein the outer wall of the heat-conductive insulation pipe is sheathed with the heat-conductive insulation film. Because one heat-conductive insulation barrier layer is additionally arranged between the liquid to be heated and the electric heating pipe which uses the mains supply, the insulation performance and the use safety of the electric heater are obviously improved. The electric heater is especially suitable for a power device which is still directly contacted with the human body in the heated liquid heating process, such as household electrical appliances, like an electric heating foot basin.
Description
Technical field
The utility model relates to a kind of electric heater, relates in particular to a kind of electric calorifie installation that still directly contacts with human body in heating process for heated liquid such as electric heating foot-washing basins.
Background technology
The electric heater of making for the aluminium section bar matter of foot basin and other purposes at present is generally the heater-type structure, be that aluminium section bar matter is by die casting or extrusion modling, be made into two-tube passage or multitube passage, referring to Fig. 1 and Fig. 2, there is shown the heater-type heater of three passages, each passage is mutually close and connection, and wherein one or more passages directly embed electric heating tube, and the passage 11 that is positioned at the both sides as shown in Fig. 1 and Fig. 2 is used for installing electrothermal tube 2; Pipeline 10 in the middle of being positioned at is by heated liquid such as current, the heater 1 guiding connecting portion that the heat of electrothermal tube adstante febre is made through aluminium section bar matter by tube wall, guiding is heated the hole wall of the pipeline 10 that liquid flows through again, the liquid after the hole wall heating of pipeline 10 in the water back 10.
The major defect of above-mentioned this electric heater is: electrothermal tube is generally the outsourcing element, electrothermal tube directly embeds in the heater, its insulating properties can only satisfy basic requirement, such as: the device of common heating water does not have special requirement to the insulating properties of electrothermal tube, and significantly electric leakage does not get final product.But what recent years was commonly used utilizes civil power as the electric heating foot-washing basin of power supply, also use above-mentioned electric heater, at this moment, because user's both feet directly are immersed in the hot water, when in case leaky is arranged, the both feet of human body and hot water form the nature loop, and electric leakage will bring direct danger to the user, and is very dangerous.Therefore, in fact the common electrical heat pipe of said structure can not be used in the such electric heater of electric heating foot-washing basin.
The basic means that improves the insulating properties of electrothermal tube is: be filled in the content of the insulation of the conduction around heating wire material in the electrothermal tube, but such mode has often increased the electrothermal tube diameter, so that the volume of electric heater increases, structure is not compact, and cost also can improve.
Summary of the invention
The purpose of this utility model provides a kind of electric heater of leaking electricity of preventing, is intended to solve that existing electric heater easily leaks electricity, unsafe technological deficiency.
For achieving the above object, the utility model provides a kind of electric heater of leaking electricity of preventing, comprise heater, be installed in pipeline and the electrothermal tube of described heater inside in mode arranged side by side, the opening of described pipeline and fluid communication to be heated, it is characterized in that: inner at described heater, between described liquid and electrothermal tube to be heated, at least also be provided with one deck heat conductive insulating interlayer.
Further, described heat conductive insulating interlayer is the heat-conducting insulated film that is tightly placed in described electrothermal tube outer wall.This heat-conducting insulated film can be the heat-conducting insulated film that yellow waxed paper is made.
Above-mentioned heat conductive insulating interlayer can also be for being embedded in described ducted heat conductive insulating pipe.
Above-mentioned heat conductive insulating interlayer is the heat-conducting insulated film that is embedded in described ducted metal tube and is tightly placed in described metal tube outer wall.
Than prior art, the utility model provides prevents the electric heater that leaks electricity, owing between the electrothermal tube of liquid to be heated and use civil power, having increased one deck heat conductive insulating device, insulating properties and the usage safety performance of electric heater have been significantly improved, be particularly useful for the heater that liquid to be heated and human body directly contact, such as daily electrical equipment such as electric heating foot-washing basins.
Description of drawings
Fig. 1 is the surface structure schematic diagram of common electrical heater;
Fig. 2 is the side cross-sectional view of electric heater shown in Figure 1;
Fig. 3 is the side cross-sectional view of electric heater the first embodiment described in the utility model;
Fig. 4 is the side cross-sectional view of electric heater the second embodiment described in the utility model;
Fig. 5 is the side cross-sectional view of the third embodiment of electric heater described in the utility model.
The specific embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explaining the utility model, and be not used in restriction the utility model.
Shown in Fig. 3, the electric heater that the utility model the first embodiment provides, heater 1 are extrusion modling by aluminum material generally, can make different shapes, are fixed on the heaters such as foot basin by screw column 5 or other place.Pipeline 10 is positioned at the centre of heater 1 inside, be set up in parallel with the electrothermal tube 2 of both sides, water to be heated in pipeline 10 interior circulations, be heated.The special heat conductive insulating interlayer that arranges is actually the heat-conducting insulated film 3 that the material such as one deck yellow waxed paper is made, this heat-conducting insulated film 3 is tightly placed in the pipe outer wall of electrothermal tube 2, then the electrothermal tube 2 that packages heat-conducting insulated film is packed in the heater, the fit system of packing into is snug fit, more tight better, to reach good heat-transfer effect, electrothermal tube 2 can be one, also can be illustrated in figure 3 as many.Water or other liquid flow through pipeline 10, and electrothermal tube 2 conducts heat to heat-conducting insulated film 3, then passes to heater 1, thereby water or other liquid that heating is flow through utilize heat-conducting insulated film 3 to improve insulating properties.
Shown in Fig. 4, the electric heater that the utility model the second embodiment provides, heater 1 forms through die casting, electrothermal tube 2 still embeds heater 1 inside in common mode, through hole is left as pipeline 10 in the centre of heater 1, the special one deck heat conductive insulating interlayer that increases is to be embedded in described ducted heat conductive insulating pipe 4, this heat conductive insulating pipe 4 should have good heat conductive insulating performance, heat conductive insulating pipe 4 closes mode for being close to the assembling of pipeline 10, more tight better, to reach good heat-transfer effect, electrothermal tube 2 conducts heat first to heater 1, and then conduct heat to heat conductive insulating pipe 4, and the water or other liquid that flow through in the heating heat conductive insulating pipe 4, utilize heat conductive insulating pipe 4 to improve insulating properties.The material of heat conductive insulating pipe 4 can be with plastics or ceramic making.
Shown in Fig. 5, the electric heater that the third embodiment of the utility model provides, elder generation packs electrothermal tube 2 in the mould, then on die casting machine, the molten rheo-die-casting of aluminothermy is become heater 1, electrothermal tube 2 still embeds heater 1 inside in common mode, through hole is left as pipeline 10 in the centre of heater 1, the special heat conductive insulating spacer structure that increases is: the outer wall cover has the metal tube 61 of heat-conducting insulated film 62, namely be embedded in metal tube 61 and the heat-conducting insulated film 62 common formation heat conductive insulating interlayers that are tightly placed in described metal tube outer wall in the described pipeline 10, this heat conductive insulating interlayer and pipeline 10 assemblings are closed mode for being close to, more tight better, to reach good heat-transfer effect, the material of metal tube 61 can be used aluminium alloy, the common metal materials such as copper stainless steel are made.Heat-conducting insulated film 62 also can use yellow waxed paper to make, and utilizes the insulating properties of heat-conducting insulated film 62 to improve the security of heater.
The respective embodiments described above all the heater-type electric heater be that example is introduced, obviously can use for the measure of the above-mentioned raising security performance of other electric heater.The utility model has been set up one deck heat conductive insulating interlayer because in electrothermal tube or pipeline outer rim, heated like this water will avoid to a great extent with the city electrically contact may, be particularly suitable for electric heater unit that human body directly contacts in use.
Claims (5)
1. electric heater that prevents from leaking electricity, comprise heater, be installed in pipeline and the electrothermal tube of described heater inside in mode arranged side by side, the opening of described pipeline and fluid communication to be heated, it is characterized in that: inner at described heater, between described liquid and electrothermal tube to be heated, at least also be provided with one deck heat conductive insulating interlayer.
2. a kind of electric heater of leaking electricity of preventing according to claim 1, it is characterized in that: described heat conductive insulating interlayer is the heat-conducting insulated film that is tightly placed in described electrothermal tube outer wall.
3. a kind of electric heater of leaking electricity of preventing according to claim 2, it is characterized in that: described heat-conducting insulated film is the heat-conducting insulated film that yellow waxed paper is made.
4. a kind of electric heater of leaking electricity of preventing according to claim 1, it is characterized in that: described heat conductive insulating interlayer is for being embedded in described ducted heat conductive insulating pipe.
5. a kind of electric heater of leaking electricity of preventing according to claim 1, it is characterized in that: described heat conductive insulating interlayer is the heat-conducting insulated film that is embedded in described ducted metal tube and is tightly placed in described metal tube outer wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220377784 CN202709474U (en) | 2012-08-01 | 2012-08-01 | Electric heater capable of avoiding air leakage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220377784 CN202709474U (en) | 2012-08-01 | 2012-08-01 | Electric heater capable of avoiding air leakage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202709474U true CN202709474U (en) | 2013-01-30 |
Family
ID=47589768
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220377784 Expired - Lifetime CN202709474U (en) | 2012-08-01 | 2012-08-01 | Electric heater capable of avoiding air leakage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202709474U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105299904A (en) * | 2015-06-05 | 2016-02-03 | 郑纯建 | Simple electricity-leakage-free heating device of foot bath |
-
2012
- 2012-08-01 CN CN 201220377784 patent/CN202709474U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105299904A (en) * | 2015-06-05 | 2016-02-03 | 郑纯建 | Simple electricity-leakage-free heating device of foot bath |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130130 |
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| CX01 | Expiry of patent term |