CN103228992B - Heater plug and the method for the manufacture of this heater plug - Google Patents
Heater plug and the method for the manufacture of this heater plug Download PDFInfo
- Publication number
- CN103228992B CN103228992B CN201180058543.3A CN201180058543A CN103228992B CN 103228992 B CN103228992 B CN 103228992B CN 201180058543 A CN201180058543 A CN 201180058543A CN 103228992 B CN103228992 B CN 103228992B
- Authority
- CN
- China
- Prior art keywords
- economizer bank
- connecting bolt
- heater plug
- electric insulation
- insulation layer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000000034 method Methods 0.000 title claims description 8
- 238000004519 manufacturing process Methods 0.000 title claims description 6
- 238000007789 sealing Methods 0.000 claims abstract description 37
- 238000009413 insulation Methods 0.000 claims abstract description 29
- 239000002184 metal Substances 0.000 claims abstract description 12
- 238000002485 combustion reaction Methods 0.000 description 5
- 229920001971 elastomer Polymers 0.000 description 3
- 239000000806 elastomer Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000011521 glass Substances 0.000 description 2
- RZVAJINKPMORJF-UHFFFAOYSA-N Acetaminophen Chemical compound CC(=O)NC1=CC=C(O)C=C1 RZVAJINKPMORJF-UHFFFAOYSA-N 0.000 description 1
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000005297 pyrex Substances 0.000 description 1
- 239000005368 silicate glass Substances 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23Q—IGNITION; EXTINGUISHING-DEVICES
- F23Q7/00—Incandescent ignition; Igniters using electrically-produced heat, e.g. lighters for cigarettes; Electrically-heated glowing plugs
- F23Q7/001—Glowing plugs for internal-combustion engines
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Resistance Heating (AREA)
- Exhaust Gas After Treatment (AREA)
Abstract
The present invention relates to a kind of heater plug with the pre-hot pin (14) be contained in metal shell.The heater plug coil (18) that described pre-hot pin has economizer bank (16) and arranges in described economizer bank, wherein said heater plug coil in an end and described economizer bank electrical contact, and in another end and connecting bolt (17) electrical contact.Described connecting bolt is inserted in the opening (22) of the axis of described economizer bank, and is connected with described economizer bank by means of calandria sealing electric insulation in sealing section (23) there.At least in described sealing section, described economizer bank and/or described connecting bolt are configured with at least one electric insulation layer (33).In order to construct described calandria sealing, described economizer bank is pressed onto on described connecting bolt in the region of described electric insulation layer.
Description
Technical field
The present invention relates to a kind of heater plug and the method for the manufacture of described heater plug.
Background technology
The heater plug of prior art has the pre-hot pin be inserted in metal shell, the heater plug coil that described pre-calrod construction has economizer bank and arranges in economizer bank.With connecting bolt electrical contact on the end of heater plug coil in the opening of economizer bank, and on another end with the electrical contact of metal economizer bank.The opening of economizer bank between economizer bank and connecting bolt in order to protect heater plug coil to seal by means of calandria sealing opposite outer surrounding air.In order to there is not short circuit between economizer bank and connecting bolt, the potted component structure of calandria sealing by being made up of elastomer.Maximum temperature for the potted component be made up of elastomer is limited in 1000 hours in the Long-Time Service process of 200 DEG C.When using in internal combustion engine, secondary role is played in such use restriction, because the cylinder head of internal combustion engine is cooled under 200 °, the heater plug with housing is screwed in described internal combustion engine.
Also can consider to use heater plug outside chilled engine cylinder-body, such as in the exhaust system of motor vehicle, in the atomizer burner for thermal exhaust system, in the heater for motor vehicle or the range of application outside motor vehicle, such as, as being used for the incendiary source of spherical heater (Pellet-Heizungen).In this application that the external environment condition of heater plug is no longer cooled wherein, elastomer can not be re-used as potted component and use.
Known by WO2010/027697, use the sealing ring of metal as the potted component between economizer bank and connecting bolt.In order to make the sealing ring electric insulation of metal, connecting bolt is provided with electric insulation layer at sealing area.The sealing ring of metal uses in this as brazed joints, weld part or the metal dust as sintering.
Summary of the invention
Be according to heater plug of the present invention with according to the advantage of the method for the manufacture of heater plug of the present invention, reliable and the calandria sealing of economical can be realized, described calandria sealing reaches higher heat resistance, because the serviceability temperature of calandria sealing limits by means of only the characteristic of electric insulation layer.According to the material for electric insulation layer, serviceability temperature is only also limited by the material for economizer bank, connecting bolt and housing.In this case, the temperature identical with in the preheated zone of pre-hot pin can be born in extreme circumstances in the region of the joint side of heater plug.
The favourable improvement project of the present invention can be achieved through the following technical solutions.Wherein said electric insulation layer is configured on the inwall of described economizer bank.Described economizer bank at least has diameter diminution part in the region of described sealing section, by means of described diameter diminution part, described economizer bank and described connecting bolt is press-fited.At least in described sealing section, on described economizer bank and/or connecting bolt, apply at least one electric insulation layer, and in order to construct described calandria sealing, in the region of described electric insulation layer, described economizer bank is pressed onto on described connecting bolt.Described economizer bank at least obtains diameter diminution part by swaging in the region of described sealing section, and by described diameter diminution part, described economizer bank press-fits with described connecting bolt in the region of described electric insulation layer.
Suitably, electric insulation layer, at least in the region of sealing section, is configured with electric insulation layer on connecting bolt and/or on the inwall of economizer bank.Economizer bank, extruding between potted component and connecting bolt be connected (structure) can realize by with under type: economizer bank at least has diameter diminution part in the region of sealing section, is pressed onto on connecting bolt by economizer bank by means of described diameter diminution part.
Accompanying drawing explanation
Embodiments of the invention are shown in the drawings, and are described in detail in the description that follows.Illustrated therein is:
Fig. 1 shows the profile of heater plug, and
Fig. 2 shows the section II of the amplification of the heater plug in Fig. 1.
Detailed description of the invention
Heater plug shown in Figure 1 has metal shell 10, and described housing has the longitudinal hole 12 of break-through, is pressed into pre-hot pin 14 as calandria in described longitudinal hole.Pre-hot pin 14 is made up of the economizer bank 16 of metal, is furnished with heater plug coil 18 in described economizer bank, described heater plug coil on one end with economizer bank 16 electrical contact, and on another end with connecting bolt 17 electrical contact.The connecting bolt 17 that end that is opposed with pre-hot pin 14, that have joint 21 is derived from housing 10 is surrounded by annular space 13 in housing 10, and described annular space is closed relative to external environment condition.
Economizer bank 16 is closed by the end in the combustion chamber pointing to internal combustion engine, and on the end of annular space 13, has opening 22 opposed therewith.
For heater plug coil 18 service life importantly, the material of protection heater plug coil 18 is from the infringement of the air of oxidation or nitrogenize.For this reason, the inner chamber of economizer bank 16 utilizes calandria sealing 30 to close on opening 22.Calandria sealing 30 is formed by least one electric insulation layer 33 and economizer bank 16 structure (Pressverbindung) that is connected with the extruding of connecting bolt 17 in the region of electric insulation layer 33.
According to Fig. 2, electric insulation layer 33 is at least configured on connecting bolt 17 in the region of sealing section 23.But electric insulation layer 33 at least can be configured in economizer bank 16 in the region of sealing section 23 equally inwall on or be at least configured on the inwall of connecting bolt 17 and economizer bank 16 in the region of sealing section 23.
Electric insulation layer 33 such as can be made up of glass, silicate glass, boron glass or Pyrex (Bosilikatglas), metal oxide, metal nitride or metal oxynitrides.By known technique itself, such as apply electric insulation layer 33 by means of vapour deposition.
In order to manufacture calandria sealing 30, first electric insulation layer 33 is applied on connecting bolt 17 and/or on the inwall of economizer bank 16.In order to construct described calandria sealing 30, the air-tightness set up in the region of sealing section 23 between economizer bank 16 and connecting bolt 17 connects.At this, sealing section 23 only extends on the region of electric insulation layer 33, to make to there will not be electrical short between connecting bolt 17 and economizer bank 16.For this reason, the diameter of economizer bank 16 in sealing section 23 such as utilizes swaging and has diameter diminution part 26, is pressed onto on the electric insulation layer 33 at connecting bolt 17 place by the economizer bank 16 with described diameter by means of described diameter diminution part.
Claims (5)
1. there is the heater plug of metal shell (10), described housing has longitudinal hole (12), pre-hot pin (14) is accommodated in described longitudinal hole, the heater plug coil (18) that described pre-hot pin has economizer bank (16) and arranges in described economizer bank (16), wherein said heater plug coil (18) is in an end and described economizer bank (16) electrical contact, and in another end and connecting bolt (17) electrical contact, wherein said connecting bolt (17) to be inserted in the opening (22) of the axis of described economizer bank (16) and to be connected with described economizer bank (16) by means of calandria sealing (30) electric insulation ground in sealing section (23) there, it is characterized in that, at least in described sealing section (23), described economizer bank (16) and/or described connecting bolt (17) are configured with at least one electric insulation layer (33), and in order to construct described calandria sealing (30), in the region of described electric insulation layer (33), described economizer bank (16) is pressed onto on described connecting bolt (17).
2. according to heater plug according to claim 1, it is characterized in that, described electric insulation layer (33) is configured on the inwall of described economizer bank (16).
3. according to heater plug in any one of the preceding claims wherein, it is characterized in that, described economizer bank (16) at least has diameter diminution part (26) in the region of described sealing section (23), by means of described diameter diminution part, described economizer bank (16) and described connecting bolt (17) is press-fited.
4. for the manufacture of the method for heater plug in any one of the preceding claims wherein, it is characterized in that, at least in described sealing section (23), above apply at least one electric insulation layer (33) at described economizer bank (16) and/or connecting bolt (17), and in order to construct described calandria sealing (30), in the region of described electric insulation layer (33), described economizer bank (16) is pressed onto on described connecting bolt (17).
5. in accordance with the method for claim 4, it is characterized in that, described economizer bank (16) at least obtains diameter diminution part (26) by swaging in the region of described sealing section (23), by described diameter diminution part, described economizer bank (16) press-fits with described connecting bolt (17) in the region of described electric insulation layer (33).
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102010062443A DE102010062443A1 (en) | 2010-12-06 | 2010-12-06 | Glow plug and method for its production |
| DE102010062443.8 | 2010-12-06 | ||
| PCT/EP2011/069086 WO2012076254A1 (en) | 2010-12-06 | 2011-10-31 | Glow plug and method for the production thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103228992A CN103228992A (en) | 2013-07-31 |
| CN103228992B true CN103228992B (en) | 2015-11-25 |
Family
ID=44897767
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201180058543.3A Expired - Fee Related CN103228992B (en) | 2010-12-06 | 2011-10-31 | Heater plug and the method for the manufacture of this heater plug |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP2649375B1 (en) |
| CN (1) | CN103228992B (en) |
| DE (1) | DE102010062443A1 (en) |
| WO (1) | WO2012076254A1 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10670276B2 (en) * | 2013-05-02 | 2020-06-02 | Original Pellet Grill Company Llc | Double-sealed high-temperature resistant DC ignitor for use with wood pellet burner assemblies |
| DE102014220235A1 (en) * | 2014-10-07 | 2016-04-07 | Robert Bosch Gmbh | Radiator for an electrically heated glow plug with axially pressed heating insert, and associated manufacturing method |
| CN104439693A (en) * | 2014-12-08 | 2015-03-25 | 西安创新精密仪器研究所 | Rotary forging connection process for homogeneous or heterogeneous metal tubes and bars |
| DE102017128885A1 (en) * | 2017-12-05 | 2019-06-06 | Schaeffler Technologies AG & Co. KG | Electrically insulating rolling bearing |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1339653A (en) * | 2000-08-24 | 2002-03-13 | 日本特殊陶业株式会社 | Preheating plug and spark plug and its producing method |
| US20040026399A1 (en) * | 2002-08-12 | 2004-02-12 | Ngk Spark Plug Co., Ltd. | Glow plug |
| JP2005190948A (en) * | 2003-12-26 | 2005-07-14 | Ngk Spark Plug Co Ltd | Ceramic heater |
| CN1882807A (en) * | 2003-12-19 | 2006-12-20 | 博世株式会社 | Ceramic heater-type glow plug |
| CN101208560A (en) * | 2005-06-27 | 2008-06-25 | 罗伯特·博世有限公司 | Sheathed-element glow plug |
| WO2010027697A2 (en) * | 2008-09-08 | 2010-03-11 | Federal-Mogul Ignition Company | Metal sheath glow plug |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1119597B (en) * | 1958-11-13 | 1961-12-14 | Bosch Gmbh Robert | Glow plug for internal combustion engines |
| DE19914619A1 (en) * | 1999-03-31 | 2000-10-12 | Beru Ag | Method for sealing the connection-side end region of the glow tube of a glow plug and glow plugs with a closure according to the method |
| US20090184101A1 (en) * | 2007-12-17 | 2009-07-23 | John Hoffman | Sheathed glow plug |
-
2010
- 2010-12-06 DE DE102010062443A patent/DE102010062443A1/en not_active Withdrawn
-
2011
- 2011-10-31 EP EP11776444.9A patent/EP2649375B1/en active Active
- 2011-10-31 WO PCT/EP2011/069086 patent/WO2012076254A1/en active Application Filing
- 2011-10-31 CN CN201180058543.3A patent/CN103228992B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1339653A (en) * | 2000-08-24 | 2002-03-13 | 日本特殊陶业株式会社 | Preheating plug and spark plug and its producing method |
| US20040026399A1 (en) * | 2002-08-12 | 2004-02-12 | Ngk Spark Plug Co., Ltd. | Glow plug |
| CN1882807A (en) * | 2003-12-19 | 2006-12-20 | 博世株式会社 | Ceramic heater-type glow plug |
| JP2005190948A (en) * | 2003-12-26 | 2005-07-14 | Ngk Spark Plug Co Ltd | Ceramic heater |
| CN101208560A (en) * | 2005-06-27 | 2008-06-25 | 罗伯特·博世有限公司 | Sheathed-element glow plug |
| WO2010027697A2 (en) * | 2008-09-08 | 2010-03-11 | Federal-Mogul Ignition Company | Metal sheath glow plug |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2649375B1 (en) | 2016-05-18 |
| DE102010062443A1 (en) | 2012-06-06 |
| EP2649375A1 (en) | 2013-10-16 |
| CN103228992A (en) | 2013-07-31 |
| WO2012076254A1 (en) | 2012-06-14 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| 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: 20151125 Termination date: 20201031 |
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| CF01 | Termination of patent right due to non-payment of annual fee |