CN101815372A - Heating element of electric heater and fixing method thereof - Google Patents
Heating element of electric heater and fixing method thereof Download PDFInfo
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- CN101815372A CN101815372A CN 201010165854 CN201010165854A CN101815372A CN 101815372 A CN101815372 A CN 101815372A CN 201010165854 CN201010165854 CN 201010165854 CN 201010165854 A CN201010165854 A CN 201010165854A CN 101815372 A CN101815372 A CN 101815372A
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- heating tube
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Abstract
The invention relates to a heating element of an electric heater, comprising an electric heating pipe and a metal heat-dissipating plate. The metal heat-dissipating plate is provided with a through hole, the electric heating pipe penetrates through the through hole, and the two ends of the electric heating pipe extend out of the through hole. The heating element of the electric heater is characterized in that metal gaskets are respectively sleeved on the two ends of the electric heating pipe, the two ends of the electric heating pipe are also provided with retaining parts at the outer sides of the metal gaskets, and the retaining parts are used for preventing the metal gaskets from outwards slipping along the axis of the electric heating pipe. A gap is left between the inner end face of each metal gasket and the end face corresponding to the through hole of the metal heat-dissipating plate. Comprised with the prior art, the invention has the advantages that the metal gaskets are arranged at the two ends of the electric heating pipe, and the parts of the electric heating pipe at the outer sides of the metal gaskets are riveted, and due to the buffer action of the metal gaskets, noise generated because a riveting deformation part directly collides the end face of the through hole can be effectively reduced, and the relative fixation between the electric heating pipe and the metal heat-dissipating plate can be ensured.
Description
Technical field
The present invention relates to a kind of electric heater, particularly relate to a kind of heating element of electric heater and the fixing means of this heating element.
Background technology
The heating element that the normal electric heater that uses includes housing, is arranged on the radiator-grid of housing front portion and is positioned at housing in the common daily life, after the energising, the heating element heating, heat sees through radiator-grid and disperses, thereby reaches the purpose of heating.
At present, the heating element of this daily electric heater has generally comprised electric heating tube and metallic heat-radiating element, offer the installing hole that the heating tube of can powering passes on the metallic heat-radiating element, 1., adopt the method for direct riveting and the relative fixed between electric heating tube and the metallic heat-radiating element has following method to realize usually:; 2., adopt electric heating tube directly is poured into method in the metallic heat-radiating element.Wherein, method is 1. owing to adopt direct riveting to fix, when heating beginning (or end), (or cooling) meeting life period is poor owing to heat up, in being in the course of work of heating, electric heater also has temperature difference, consider that can there be bigger difference in the material coefficient of thermal expansion coefficient because of the difference of material, therefore, in heating beginning/terminal procedure, the thermal expansion amount of electric heating tube and metallic heat-radiating element can be because variation of temperature be very different, make and to relatively move between electric heating tube and the metallic heat-radiating element, and, because electric heating tube and metallic heat-radiating element be riveting together, the riveting deformation place of electric heating tube can produce very big active force for the installing hole of metallic heat-radiating element, easily cause such as noise, the problems such as distortion of electric heating tube and metallic heat-radiating element, after long-time the use, can cause breaking of metallic heat-radiating element, relative displacement between electric heating tube and the metallic heat-radiating element makes that then the live part of electric heating tube end is easy to directly contact with metallic heat-radiating element, thereby causes danger.
For method 2., the casting process process is comparatively complicated, and casting cycle is to operate under the condition of high temperature of heat dissipation element metal molten, and production process danger, scrappage height make production cost increase greatly.In addition, when variations in temperature, because electric heating tube outer wall and metallic heat-radiating element adopt different materials, the problem that the electric heating tube that has the thermal expansion amount difference equally and cause is moved with respect to metallic heat-radiating element, cause breaking of metallic heat-radiating element easily, fully the 1. middle problem that produces of solution.
Summary of the invention
First technical problem to be solved by this invention is to provide being connected of a kind of electric heating tube and metal heat sink the safer heating element that is used for electric heater reliably at above-mentioned prior art present situation, and this heating element can avoid because the danger that electric heating tube causes electric heating tube with respect to moving of metal heat sink electro-mechanical part and metallic heat-radiating element directly contact.
Second technical problem to be solved by this invention provides a kind of electric heating tube and interconnective fixing means of realizing in the above-mentioned heating element of metal heat sink.
The present invention solves the technical scheme that above-mentioned first technical problem adopts: the heating element of electric heater, include electric heating tube and metallic heat radiating plate, wherein, described metallic heat radiating plate is provided with through hole, described electric heating tube is located in the described through hole, two of this electric heating tube stretches out in outside the described through hole, it is characterized in that: two of described electric heating tube also is arranged with a metal washer respectively, and, two of described electric heating tube also has in the outside that is positioned at described metal washer can prevent the stopper of described metal washer along the outside slippage of axis of this electric heating tube, leaves the gap between the inner face of described metal washer and the corresponding end face of the through hole of described metallic heat radiating plate.
In order to prevent that resistance wire is because of the impaired fracture of riveting, and avoid making the charged risk of electric heating tube outer wall because of resistance wire contact electric heating tube outer wall, the centre of described electric heating tube is provided with resistive heater, this electric heating tube stretches out in two outside the described through hole and is provided with the metal eduction rod, and two of described electric heating tube also is connected with a terminal stud respectively in the end.So resistive heater is arranged on the centre of electric heating tube, can play the effect of effective protective resistance silk, the terminal stud that is connected the electric heating tube two ends then can be realized the connection between electric heating tube and the external circuit.
In order to simplify technology, as preferably, described stopper is one along the outer wall of the described electric heating tube riveting variant part of evagination radially.Therefore, the electric heating tube two ends after metal washer is installed, the mode by riveting realize and metallic heat radiating plate between connection, promptly can be the riveting variant part with the stopper that metal washer offsets.
The present invention solves above-mentioned second technical scheme that technical problem adopted: the fixing means of the heating element of electric heater is characterized in that: include following steps:
(1), described electric heating tube is penetrated in the prefabricated described metallic heat radiating plate that described through hole arranged, and two of this electric heating tube stretches out in outside the described through hole;
(2), respectively be inserted in a described metal washer, and make between the through hole end face of described metal washer and described metallic heat radiating plate and keep the gap at two of described electric heating tube;
(3), described electric heating tube is carried out riveting in the part in the described metal washer outside, make the electric heating tube at this position produce certain deformation and form described stopper.
As preferably, the interstice coverage in the described step (2) is 0.5～5mm.If interstice coverage is crossed conference and is made between electric heating tube and the metallic heat radiating plate and to produce bigger rocking, install stablely inadequately, but also can cause the waste of installing space; If interstice coverage is too small, then the distortion that produces in heating process of electric heating tube and metallic heat radiating plate is not enough to consume by the gap, will mutual extrusion between electric heating tube and the metallic heat radiating plate and produce bigger active force, cause the product failure by rupture, even can't use, have only the gap that certain OK range is set to guarantee under stable, the compact prerequisite of mounting structure, eliminate thermal deformation simultaneously and the displacement that between electric heating tube and heat dissipation metal net, produces.
In order to protect the thermal exposure of metallic heat radiating plate and increase metallic heat radiating plate; as further preferred, can also increase following steps afterwards before or in described step (3): the high-temperature resistant coating spraying is carried out on described metallic heat radiating plate surface in described step (1).
Compared with prior art, the invention has the advantages that: be provided with metallic gasket at the electric heating tube two ends, earlier metallic gasket is set in the two ends of electric heating tube, and then the part that electric heating tube is positioned at the metallic gasket outside carried out riveting, make metallic gasket between the through hole end face of the riveting variant part of electric heating tube and metallic heat radiating plate, because the cushioning effect of metallic gasket, the noise that has reduced riveting variant part direct collision through hole end face effectively and produced, and because the barrier effect of metal washer, make the riveting variant part of electric heating tube arbitrarily outwards not skid off by through hole, guaranteed the relative fixed between electric heating tube and the metallic heat radiating plate, improved the connection reliability of electric heating tube and metallic heat radiating plate, prevented from effectively to cause fracture and the breakage of metallic heat radiating plate at the through hole position because of thermal deformation.
Description of drawings
Fig. 1 is the overall structure schematic diagram of the embodiment of the invention.
Fig. 2 is the internal structure schematic diagram of the embodiment of the invention.
Fig. 3 is the electric heating tube of the embodiment of the invention and the syndeton schematic diagram of metallic heat radiating plate.
Fig. 4 is the partial enlarged drawing of syndeton shown in Figure 3.
Embodiment
Embodiment describes in further detail the present invention below in conjunction with accompanying drawing.
As Fig. 1～shown in Figure 4, be a preferred embodiment of the present invention, Fig. 1 is the electric heater overall structure schematic diagram of present embodiment, this electric heater comprises the closed cavity of being made up of procapsid 1 and back casing 2, wherein, procapsid is provided with heat radiation guard 11 with holes, is provided with heating element in the back casing 2;
Heating element includes electric heating tube 3 and metallic heat radiating plate 4, metallic heat radiating plate 4 is fixed on the inwall of back casing 2 by heating panel support 5, be preset with the through hole that vertically is provided with along this metallic heat radiating plate 4 on the metallic heat radiating plate 4, electric heating tube 3 is applied in the through hole, two of electric heating tube 3 stretches out in outside the through hole, the centre of electric heating tube 3 is provided with resistive heater, be provided with the metal eduction rod in two of electric heating tube 3, electric heating tube 3 also is connected with the terminal stud 31 that is used to connect lead respectively in the end at two, also be provided with thermostat 6 and power control box 7 in the back casing 2, electric heating tube 3, be communicated with and the formation current circuit by lead 8 between thermostat 6 and the power control box 7, and, electric heating tube 3 stretches out on two outside the through hole and also respectively is arranged with a metal washer 9, leave the clearance t of 0.5～5mm between this metal washer 9 and the metallic heat radiating plate 4, electric heating tube 3 also has stopper 32 on metal washer 9 outsides, this stopper 32 is one along the outer wall of the electric heating tube 3 riveting variant part of evagination radially, stopper 32 can and the lateral surface of metal washer 9 offset and prevent that metal washer 9 from axially skidding off along electric heating tube 3.
In order to guarantee the reliable connection between electric heating tube 3 and the metallic heat radiating plate 4, prevent the fixing means that prior art adopts and make the back slippage mutually of being heated between the two, thereby cause the defective of metallic heat radiating plate 4 at the through hole breaking strain, the heating element of present embodiment adopts following fixing means, specifically may further comprise the steps:
(1-1), the high-temperature resistant coating spraying is carried out on metallic heat radiating plate 4 surfaces;
(1), electric heating tube 3 is penetrated in the metallic heat radiating plate 4 that is shaped on through hole in advance, and two of electric heating tube 3 stretches out in outside the through hole;
(2), respectively be inserted in a metal washer 9, and make the clearance t that keeps 0.5～5mm between the through hole end face of metal washer 9 and metallic heat radiating plate 4 at two of electric heating tube 3;
(3), electric heating tube 3 is carried out riveting in the part in metal washer 9 outsides, make the electric heating tube at this position produce certain riveting distortion and form a stopper 32.
Wherein, step (1-1) is carried out the high-temperature resistant coating spraying to the metallic heat radiating plate surface; carry out after also can being placed on step (3), this processing step mainly plays the effect of protecting metallic heat radiating plate and preventing temperature distortion, can also increase the thermal exposure of metallic heat radiating plate.
Present embodiment since before riveting first sheathed metal washer at the two ends of electric heating tube, and this metal washer is because the riveting distortion of electric heating tube and can not outwards moving makes electric heating tube and metallic heat radiating plate carry out relative fixed.But owing to also leave suitable gap between electric heating tube and the shape heating panel, the different heat expansion amount that electric heating tube and metallic heat radiating plate produce in heating process can be by freely relatively moving and full consumption between them, by the electric heating tube of this fixing means making and the sub-assembly of metallic heat radiating plate, because the effect of metal washer, in heating process, can avoid the friction noise that produces because of electric heating tube and relatively moving of metallic heat radiating plate, improved the performance of product, and metallic heat radiating plate is difficult for deforming at the opening part of through hole, has prolonged the useful life of product.
Claims (7)
1. the heating element of an electric heater, include electric heating tube and metallic heat radiating plate, wherein, described metallic heat radiating plate is provided with through hole, described electric heating tube is located in the described through hole, two of this electric heating tube stretches out in outside the described through hole, it is characterized in that: two of described electric heating tube also is arranged with a metal washer respectively, and, two of described electric heating tube also has in the outside that is positioned at described metal washer can prevent the stopper of described metal washer along the outside slippage of axis of this electric heating tube, leaves the gap between the inner face of described metal washer and the corresponding end face of the through hole of described metallic heat radiating plate.
2. electric heater according to claim 1, it is characterized in that: the centre of described electric heating tube is provided with resistive heater, this electric heating tube stretches out in two outside the described through hole and is provided with the metal eduction rod, and two of described electric heating tube also is connected with a terminal stud respectively in the end.
3. electric heater according to claim 1 is characterized in that: described stopper is one along the outer wall of the described electric heating tube riveting variant part of evagination radially.
4. fixing means as the heating element of electric heater as described in claim 1 or 2 or 3 is characterized in that: include following steps:
(1), described electric heating tube is penetrated in the prefabricated described metallic heat radiating plate that described through hole arranged, and two of this electric heating tube stretches out in outside the described through hole;
(2), respectively be inserted in a described metal washer, and make between the through hole end face of described metal washer and described metallic heat radiating plate and keep the gap at two of described electric heating tube;
(3), described electric heating tube is carried out riveting in the part in the described metal washer outside, make the electric heating tube at this position produce certain deformation and form described stopper.
5. according to the fixing means of the heating element of the described electric heater of claim 4, it is characterized in that: the interstice coverage in the described step (2) is 0.5～5mm.
6. according to the fixing means of the heating element of the described electric heater of claim 4, it is characterized in that: in described step (1) before, also have the following steps:
(1-1), the high-temperature resistant coating spraying is carried out on described metallic heat radiating plate surface.
7. according to the fixing means of the heating element of the described electric heater of claim 4, it is characterized in that: in described step (3) afterwards, also have the following steps:
(3-1), the high-temperature resistant coating spraying is carried out on described metallic heat radiating plate surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010165854 CN101815372B (en) | 2010-05-06 | 2010-05-06 | Heating element of electric heater and fixing method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010165854 CN101815372B (en) | 2010-05-06 | 2010-05-06 | Heating element of electric heater and fixing method thereof |
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| Publication Number | Publication Date |
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| CN101815372A true CN101815372A (en) | 2010-08-25 |
| CN101815372B CN101815372B (en) | 2013-02-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201010165854 Active CN101815372B (en) | 2010-05-06 | 2010-05-06 | Heating element of electric heater and fixing method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104567114A (en) * | 2013-10-28 | 2015-04-29 | 珠海格力电器股份有限公司 | Heat exchanger |
| CN107195588A (en) * | 2017-07-05 | 2017-09-22 | 赵西岭 | A kind of component for being used to fix transistor |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1004918B (en) * | 1987-02-11 | 1989-07-26 | 上海电热电器厂 | The loading method of electrothermal tube insulation filling material |
| CN2123032U (en) * | 1992-01-23 | 1992-11-25 | 程万国 | Electric pipe water heater |
| CN2222418Y (en) * | 1994-10-28 | 1996-03-13 | 齐鲁乙烯塑编厂股份有限公司 | U-shaped electric heating tube |
| CN2261593Y (en) * | 1996-03-24 | 1997-09-03 | 赵占伟 | Electric water heater capable of using heat radiator as auxilliary source |
| CN2310263Y (en) * | 1997-09-24 | 1999-03-10 | 王锦林 | Convective electric heater with double electric heating tube and rectangular radiator |
| CN1865705A (en) * | 2005-05-20 | 2006-11-22 | 富士通将军股份有限公司 | Scroll compressor |
| CN201248680Y (en) * | 2008-07-31 | 2009-06-03 | 美的集团有限公司 | Mounting structure of heating pipe component of dish washing machine |
| CN101640750A (en) * | 2008-07-29 | 2010-02-03 | 菱光科技股份有限公司 | Method and structure for assembling roller wheel of image sensor module |
| CN201674677U (en) * | 2010-05-06 | 2010-12-15 | 宁波丽辰电器有限公司 | Heating element of electric heater |
-
2010
- 2010-05-06 CN CN 201010165854 patent/CN101815372B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1004918B (en) * | 1987-02-11 | 1989-07-26 | 上海电热电器厂 | The loading method of electrothermal tube insulation filling material |
| CN2123032U (en) * | 1992-01-23 | 1992-11-25 | 程万国 | Electric pipe water heater |
| CN2222418Y (en) * | 1994-10-28 | 1996-03-13 | 齐鲁乙烯塑编厂股份有限公司 | U-shaped electric heating tube |
| CN2261593Y (en) * | 1996-03-24 | 1997-09-03 | 赵占伟 | Electric water heater capable of using heat radiator as auxilliary source |
| CN2310263Y (en) * | 1997-09-24 | 1999-03-10 | 王锦林 | Convective electric heater with double electric heating tube and rectangular radiator |
| CN1865705A (en) * | 2005-05-20 | 2006-11-22 | 富士通将军股份有限公司 | Scroll compressor |
| CN101640750A (en) * | 2008-07-29 | 2010-02-03 | 菱光科技股份有限公司 | Method and structure for assembling roller wheel of image sensor module |
| CN201248680Y (en) * | 2008-07-31 | 2009-06-03 | 美的集团有限公司 | Mounting structure of heating pipe component of dish washing machine |
| CN201674677U (en) * | 2010-05-06 | 2010-12-15 | 宁波丽辰电器有限公司 | Heating element of electric heater |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104567114A (en) * | 2013-10-28 | 2015-04-29 | 珠海格力电器股份有限公司 | Heat exchanger |
| CN104567114B (en) * | 2013-10-28 | 2017-08-01 | 珠海格力电器股份有限公司 | Heat exchanger |
| CN107195588A (en) * | 2017-07-05 | 2017-09-22 | 赵西岭 | A kind of component for being used to fix transistor |
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| Publication number | Publication date |
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| CN101815372B (en) | 2013-02-06 |
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