CN201754627U - Electric heating tube structure of compact built-in fuse - Google Patents
Electric heating tube structure of compact built-in fuse Download PDFInfo
- Publication number
- CN201754627U CN201754627U CN2010202917224U CN201020291722U CN201754627U CN 201754627 U CN201754627 U CN 201754627U CN 2010202917224 U CN2010202917224 U CN 2010202917224U CN 201020291722 U CN201020291722 U CN 201020291722U CN 201754627 U CN201754627 U CN 201754627U
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- fuse
- flange
- sleeve
- metal
- metal sleeve
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- Expired - Fee Related
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Abstract
The utility model relates to an electric heating tube structure of a compact built-in fuse, comprising a metal sleeve with a heating wire running through the interior, wherein the two ends of the heating wire are respectively connected with a heating wire leadout bar, insulation filling is filled between the heating wire and the metal sleeve, the two ends of the metal sleeve are installed on a flange, a fuse is arranged in the metal sleeve, the fuse is arranged below the flange and close to the flange, the heating wire leadout bar in a same end with the metal sleeve is connected with one end of the fuse, the other end of the fuse is connected with the leadout bar, metal short boots are all sleeved on the two ends of the metal sleeve, a brazing layer is arranged between the metal short boot and the flange, and the an all-circle argon arc layer is arranged between the metal short boot and the metal sleeve. The fuse can be much close to the flange by changing the fixed connection structure between the flange and the electric heating tube, and the fuse will not break under high-temperature in the assembly process, thereby improving the quality of products.
Description
Technical field
The utility model relates to a kind of electrothermal tube, relates in particular to a kind of built-in fuse electrothermal tube structure of compact with overtemperature prote function.
Background technology
In order to make electrothermal tube have the overtemperature prote function, need to be provided with within it and fuse that heating wire is in series, and the temperature anomaly during for the actual induction lack of water, the position of fuse needs relatively near the used flange of installation electrothermal tube.Because the general welding manner Joint that adopts between flange and the electrothermal tube, the high temperature that produces during welding reaches the fracture that easily causes the fuse in the electrothermal tube, brings difficulty for the production of the electrothermal tube of overtemperature prote function.
Summary of the invention
The utility model mainly solves original electrothermal tube does not have the overtemperature prote function, and, bring the difficult technologies problem for the production of electrothermal tube in order to realize that the overtemperature prote function adopts original welding manner to reach the fracture that easily causes the fuse in the electrothermal tube between flange and electrothermal tube; Provide a kind of compact built-in fuse electrothermal tube structure, the built-in structure that it has changed between flange and the electrothermal tube makes that the fuse in the electrothermal tube can be very near flange, guarantees in the assembling process that fuse can Yin Gaowen and rupture, and improves the quality of products.
The utility model solves the restriction that original electrothermal tube is subjected to small space in the water heating apparatus simultaneously, and maximum heating length can not satisfy the technical problem that water heating apparatus uses needs; Provide a kind of compact built-in fuse electrothermal tube structure, the structure of its electrothermal tube is improved, and possesses maximum heating length at narrow and small installing space, satisfies that the space is little, the needs of high-power water heating apparatus.
Above-mentioned technical problem of the present utility model is mainly solved by following technical proposals: the utility model comprises metal sleeve, be equipped with heating wire in the metal sleeve, the heating wire two ends are connected with the heating wire eduction rod respectively, be filled with insulation filler between heating wire and the metal sleeve, the two ends of metal sleeve is installed on the flange, be provided with a fuse in the described metal sleeve, described fuse is positioned at described flange below and close flange, be positioned at the heating wire eduction rod of same metal sleeve termination with fuse and an end of described fuse links to each other, the other end of fuse is connected with eduction rod, all be arranged with the metal short sleeve on two terminations of described metal sleeve, be provided with brazing layer between described metal short sleeve and the described flange, be provided with complete all argon arc layers between described metal short sleeve and metal sleeve.During assembling, the metal short sleeve earlier and the flange soldering, again and adopt complete all argon arcs to weld between the metal sleeve.Because the soldering between metal short sleeve and the flange is to carry out under the situation of not adorning the metal sleeve that is built-in with fuse, so the high temperature that soldering produces can not be damaged to fuse, thereby can adorn the fuse in the electrothermal tube very near flange, fuse can not rupture because of the high temperature that welding produces, and improves the quality of products.The utility model possesses the overtemperature prote function, and fuse can actual induction during lack of water or the temperature anomaly under other abnormal conditions, in time cuts off the electricity supply.
As preferably, described metal sleeve comprise one section short straight tube, segment length's straight tube and be connected short straight tube and long straight tube between in the shape of a spiral the coiling spiral element, short straight tube and long straight tube be arranged in parallel and are installed on the described flange, and described fuse is positioned at described long straight tube.Effectively increase the maximum heating length of electrothermal tube, satisfy the needs of the narrow and small water heating apparatus in space.
As preferably, the position adjacent with described long straight tube is the indent arc tube to spiral center indent on the described spiral element, and the concave point of described long straight tube, short straight tube and indent arc tube point-blank.Guarantee that structure is compact more, the maximum heating length of electrothermal tube is longer.
As preferably, described indent arc tube and the curved smooth transition of described spiral element.
As preferably, described flange is the disc shape that has flange, the two ends of described metal sleeve is passed and is tried to get to the heart of a matter, the lower nozzle of described metal short sleeve try to get to the heart of a matter and metal sleeve between, described brazing layer is at the lower nozzle of metal short sleeve with between trying to get to the heart of a matter, the upper orifice of described metal short sleeve is above the flange of flange, described complete all argon arc layers are positioned at the upper orifice place of described metal short sleeve, described flange is provided with some installing holes, and described fuse is positioned at try to get to the heart of a matter below and close trying to get to the heart of a matter.Be convenient to be installed on the water heating apparatus that mates with this electrothermal tube, install more firm.And make that complete all argon arc layers are distant from fuse, can not be damaged to fuse when further guaranteeing to weld.
As preferably, described flange is a steel flange, and described metal short sleeve is the stainless steel short sleeve.
The beneficial effects of the utility model are: by the sheathed metal short sleeve in the termination of metal sleeve, and metal short sleeve elder generation and flange soldering, adopt complete all argon arc welding again and between the metal sleeve, thereby can adorn the fuse in the electrothermal tube very near flange, fuse can not rupture because of the high temperature that welding produces, and improves the quality of products.Thereby make the utility model possess the overtemperature prote function, fuse can actual induction during lack of water or the temperature anomaly under other abnormal conditions, in time cuts off the electricity supply.On the other hand,, make that electrothermal tube possesses maximum heating length in narrow and small installing space, satisfy the needs of the less water heating apparatus in space by the electrothermal tube spirality being coiled and will being designed to the indent arc tube over against the spiral element of long straight tube.
Description of drawings
Fig. 1 is a kind of perspective view of the present utility model.
Fig. 2 is a kind of plan structure schematic diagram of electrothermal tube in the utility model.
Fig. 3 is a kind of broken section structural representation of the present utility model.
1. metal sleeves among the figure, 2. heating wire, 3. heating wire eduction rod, 4. insulation filler, 5. flange, 6. fuse, 7. eduction rod, 8. metal short sleeve, 9. brazing layer, 10. complete all argon arc layers, 11. short straight tubes, 12. long straight tubes, 13. spiral element, 14. indent arc tubes, 51. flange, 52. try to get to the heart of a matter, 53. installing holes.
Embodiment
Below by embodiment, and in conjunction with the accompanying drawings, the technical solution of the utility model is described in further detail.
Embodiment 1: the built-in fuse electrothermal tube structure of a kind of compact of present embodiment, as shown in Figure 1, comprise metal sleeve 1, be penetrated with heating wire 2 in the metal sleeve 1, heating wire 2 two ends are connected with heating wire eduction rod 3 respectively, are filled with insulation filler 4 in the space in the metal sleeve 1.Metal sleeve 1 comprises one section short straight tube 11, segment length's straight tube 12 and is connected short straight tube 11 and the spiral element 13 of coiling in the shape of a spiral of 12 of long straight tubes, short straight tube 11 and long straight tube 12 be arranged in parallel, all be with metal short sleeve 8 on the termination of short straight tube 11 and long straight tube 12, and be installed on the flange 5.On the spiral element 13 and long straight tube 12 adjacent positions are indent arc tube 14 to spiral center indent, indent arc tube 14 and spiral element 13 curved smooth transition, and the concave point of long straight tube 12, short straight tube 11 and indent arc tube 14 is point-blank.Flange 5 is the disc shape that has flange, short straight tube 11 and long straight tube 12 pass tries to get to the heart of a matter 52, the lower nozzle of metal short sleeve 8 try to get to the heart of a matter 52 and metal sleeve 1 between, and the lower nozzle of metal short sleeve 8 and try to get to the heart of a matter and be connected with brazing layer 9 between 52, the upper orifice of metal short sleeve 8 is above the flange 51 of flange 5, be evenly equipped with three installing holes 53 on the flange 51,1 of the upper orifice of metal short sleeve 8 and metal sleeve are connected with complete all argon arc layers 10.A fuse 6 is arranged in the long straight tube 12, and fuse 6 is positioned at 52 belows and near trying to get to the heart of a matter 52 of trying to get to the heart of a matter of flange 5.Heating wire eduction rod 3 in the long straight tube and an end of fuse 6 link to each other, and the other end of fuse 6 is connected with eduction rod 7.In the present embodiment, flange 5 is a steel flange, and metal short sleeve 8 is the stainless steel short sleeve.
The utility model is when assembling, at first assemble electrothermal tube, promptly in metal sleeve, install heating wire, fuse and leading foot, then earlier stainless steel short sleeve and the flange form with soldering is welded together, long straight tube, short straight tube with electrothermal tube passes the stainless steel short sleeve then, to adopt the form of complete all argon arc weldings to weld together between the upper orifice place of stainless steel short sleeve and electrothermal tube, thereby finish the assembly work of whole electrothermal tube.Because the lower nozzle place and the soldering between the flange of the stainless steel short sleeve of close fuse are to carry out under the situation of not adorning electrothermal tube, so the high temperature that soldering produces can not be damaged to fuse, and the complete all argon arc layers that connect stainless steel short sleeve and electrothermal tube are positioned at the upper orifice place of stainless steel short sleeve, and distant, so can not produce injury to fuse from fuse yet.Therefore the utility model can be adorned the fuse in the electrothermal tube very near flange; can guarantee in the assembling process that fuse can not rupture because of the high temperature that welding produces; improve the quality of products; therefore the utility model possesses the overtemperature prote function; fuse can actual induction during lack of water or the temperature anomaly under other abnormal conditions, in time cuts off the electricity supply.On the other hand, by the electrothermal tube spirality being coiled and will being designed to the indent arc tube over against the spiral element of long straight tube, make that electrothermal tube possesses maximum heating length in narrow and small installing space, satisfy the needs of the less water heating apparatus in space, as home appliances such as dishwashers.
Claims (6)
1. built-in fuse electrothermal tube structure of compact, comprise metal sleeve (1), be equipped with heating wire (2) in the metal sleeve (1), heating wire (2) two ends are connected with heating wire eduction rod (3) respectively, be filled with insulation filler (4) between heating wire (2) and the metal sleeve (1), the two ends of metal sleeve (1) is installed on the flange (5), it is characterized in that being provided with in the described metal sleeve (1) fuse (6), described fuse (6) is positioned at described flange (5) below and close flange (5), be positioned at the heating wire eduction rod (3) of same metal sleeve termination with fuse (6) and an end of described fuse (6) links to each other, the other end of fuse (6) is connected with eduction rod (7), all be arranged with metal short sleeve (8) on two terminations of described metal sleeve (1), be connected with brazing layer (9) between described metal short sleeve (8) and the described flange (5), be connected with complete all argon arc layers (10) between described metal short sleeve (8) and metal sleeve (1).
2. the built-in fuse electrothermal tube structure of a kind of compact according to claim 1, it is characterized in that described metal sleeve (1) comprise one section short straight tube (11), segment length's straight tube (12) and be connected short straight tube (11) and long straight tube (12) between in the shape of a spiral the coiling spiral element (13), short straight tube (11) and long straight tube (12) be arranged in parallel and are installed on the described flange (5), and described fuse (6) is positioned at described long straight tube (12).
3. the built-in fuse electrothermal tube structure of a kind of compact according to claim 2, it is characterized in that it is indent arc tube (14) to spiral center indent that described spiral element (13) is gone up the position adjacent with described long straight tube (12), the concave point of described long straight tube (12), short straight tube (11) and indent arc tube (14) point-blank.
4. according to claim 2 or the built-in fuse electrothermal tube structure of 3 described a kind of compacts, it is characterized in that described indent arc tube (14) and the curved smooth transition of described spiral element (13).
5. according to claim 1 or the built-in fuse electrothermal tube structure of 2 or 3 described a kind of compacts, it is characterized in that described flange (5) is the disc shape that has flange, the two ends of described metal sleeve (1) is passed try to get to the heart of a matter (52), the lower nozzle of described metal short sleeve (8) be positioned at try to get to the heart of a matter (52) and metal sleeve (1) between, described brazing layer (9) is connected the lower nozzle of metal short sleeve (8) and tries to get to the heart of a matter between (52), the upper orifice of described metal short sleeve (8) is above the flange (51) of flange (5), described complete all argon arc layers (10) are positioned at the upper orifice place of described metal short sleeve (8), described flange (51) is provided with some installing holes (53), and described fuse (6) is positioned at try to get to the heart of a matter (52) below and close try to get to the heart of a matter (52).
6. according to claim 1 or the built-in fuse electrothermal tube structure of 2 or 3 described a kind of compacts, it is characterized in that described flange (5) is a steel flange, described metal short sleeve (8) is the stainless steel short sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202917224U CN201754627U (en) | 2010-08-16 | 2010-08-16 | Electric heating tube structure of compact built-in fuse |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202917224U CN201754627U (en) | 2010-08-16 | 2010-08-16 | Electric heating tube structure of compact built-in fuse |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201754627U true CN201754627U (en) | 2011-03-02 |
Family
ID=43622358
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202917224U Expired - Fee Related CN201754627U (en) | 2010-08-16 | 2010-08-16 | Electric heating tube structure of compact built-in fuse |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201754627U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108518360A (en) * | 2014-04-24 | 2018-09-11 | 佛山市顺德区美的洗涤电器制造有限公司 | Heat pump and dish-washing machine for dish-washing machine |
| US10602905B2 (en) | 2014-04-24 | 2020-03-31 | Foshan Shunde Midea Washing Appliances Mfg. Co. Lt | Heat pump and dishwasher comprising the same |
-
2010
- 2010-08-16 CN CN2010202917224U patent/CN201754627U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108518360A (en) * | 2014-04-24 | 2018-09-11 | 佛山市顺德区美的洗涤电器制造有限公司 | Heat pump and dish-washing machine for dish-washing machine |
| CN108518358A (en) * | 2014-04-24 | 2018-09-11 | 佛山市顺德区美的洗涤电器制造有限公司 | Heat pump and dish-washing machine for dish-washing machine |
| CN108518359A (en) * | 2014-04-24 | 2018-09-11 | 佛山市顺德区美的洗涤电器制造有限公司 | Heat pump and dish-washing machine for dish-washing machine |
| US10602905B2 (en) | 2014-04-24 | 2020-03-31 | Foshan Shunde Midea Washing Appliances Mfg. Co. Lt | Heat pump and dishwasher comprising the same |
| EP3134653B1 (en) * | 2014-04-24 | 2024-03-06 | Foshan Shunde Midea Washing Appliances Mfg. Co., Ltd. | Heat pump and dishwasher comprising the same |
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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 |
Granted publication date: 20110302 Termination date: 20190816 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |