CN2167203Y - Quick electric heating means of two units heating structure type - Google Patents
Quick electric heating means of two units heating structure type Download PDFInfo
- Publication number
- CN2167203Y CN2167203Y CN93224332U CN93224332U CN2167203Y CN 2167203 Y CN2167203 Y CN 2167203Y CN 93224332 U CN93224332 U CN 93224332U CN 93224332 U CN93224332 U CN 93224332U CN 2167203 Y CN2167203 Y CN 2167203Y
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- China
- Prior art keywords
- sheath
- heater
- housing
- glow plug
- heat radiating
- Prior art date
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Abstract
The utility model relates to a quick electric heating plug of two unit structure, relating to the auxiliary starting device of a combustion engine, comprising a sheath for a heating body whose one end is fixed in a hollow shell body and a bolt for connecting wires, one end of the bolt for connecting wires is positioned in the hollow shell body, and the bolt for connecting wires is fixed on the hollow shell body via an insulator. A heating element which is positioned in the sheath for a heating body is formed by the series connection of a main heating body with small resistance-temperature coefficient and an auxiliary heating body with greater positive resistance-temperature coefficient. One end of each heating body is welded at the head part of the sheath for a heating body; the other end of the heating body is connected with the bolt for connecting wires. The utility model overcomes the disadvantages of small resistance in the cold state and low efficiency of the existing electric heating plug, and has the advantages of small initial current, high efficiency, energy saving and low production cost.
Description
The quick type glow plug of a kind of binary heat radiating structure relates to the starting aid of combustion engine, particularly the device by the starting of thermal process auxiliary engine.
Existing glow plug generally all is with electric heating wire coiled solenoid shape, is installed in the heat-resisting metal sleeve, and the opening end of metal sleeve then is fixed in the hollow housing.Electric heating wire one end is welded on the closed end of metal sleeve; The other end is welded on the center-pole that is fixed in the hollow housing, and is drawn out to the glow plug afterbody by center-pole.It is heater element that this glow plug generally adopts nickel or tungsten, analyzes, tests to such an extent that leading indicator is as follows to it by " JB5784-91 " standard:
I. make the glow plug of heater element with nickel.
A. under voltage rating (11V), the heater end surface reaches time of 850 ℃ and is about 10 seconds, and the time that reaches 1000 ℃ is about 16 seconds.
B. cold-state resistance is 0.22 Ω.
C. initial current is 34.8A.
II. make the glow plug of heater element with tungsten.
A. under voltage rating (11V), the heater end surface reaches time of 850 ℃ and is about 10 seconds, and the time that reaches 1000 ℃ is about 16 seconds.
B. cold-state resistance is 0.20 Ω.
C. initial current is 32.4A.
By above-mentioned analysis, test result as can be known, though existing glow plug has the fast distinguishing feature of warming velocity, yet also have following shortcoming: a. initial current excessive (generally at 30A), cause storage battery rapid wear, the lost of life and influence bad phenomenon such as power starting; B. product power consumption is big, heating efficiency is low.
The utility model is exactly the above-mentioned shortcoming at existing glow plug, proposes a kind of fast electric heating plug that initial current is little, efficient, energy-conservation and cost of production is low that has.
Because existing glow plug cold-state resistance is little, initial current is excessive, and for addressing this problem, the utility model adopts such solution: form heater element by two kinds of different heaters of resistance-temperature coefficient, just adopt the binary heat radiating structure.In order to guarantee that heater element had both had positive resistance-temperature coefficient, have suitable cold-state resistance again, these two kinds of heaters should have such characteristic.Main heating element has little resistance-temperature coefficient, pays heater and has big positive resistance-temperature coefficient, and the two series connection is formed heater element.The heater element of this diadactic structure is installed in the heater sheath.The sealing of heater sheath one end, an end opening, its open end portion extend in the hollow housing, and fixes with housing.Heater element one end that is arranged in the heater sheath is welded on the closed end of sheath, and the other end then is welded on the lead connecting bolt.The lead connecting bolt fixes by insulator and hollow housing, and its front portion is positioned at housing, and afterbody stretches out housing.
The utility model is owing to adopt the binary heat radiating structure, and it is little therefore to have an initial current, and cold-state resistance is relatively large, and efficient height, energy saving, advantage that cost of production is low.The specific performance contrast is as follows:
Fig. 1 is the utility model one most preferred embodiment cut-away view.
Fig. 2 is another most preferred embodiment cut-away view of the utility model.
Below in conjunction with drawings and Examples the utility model is further described.
Referring to Fig. 1, heater element by the main heating element with small resistor-temperature coefficient (2) with have big positive resistance-temperature coefficient pay a heater (3) formation of connecting.Main heating element can be selected OCr25AL5, Ni80Cr20 etc. for use, pays heater and can select Ni, W, Pt, Ta or its alloy etc. for use.The main solenoidal form of the general equal coiled of heater of paying is installed in the heater sheath (1).If the closed end of sheath is decided to be front end, concrete arrangement mode can have following several: a. main heating element preceding, pay heater after be connected in series; B. main heating element is enclosed within and pays on the heater, or pays a heater and be enclosed within on the main heating element, and is connected in series; C. main, a pair heater is connected in series side by side.In order to increase transmission of heat, can between heater element and sheathed casing, add heat conductive insulating powder (4).The sealing of heater sheath (1) one end, an end opening, its open end portion puts in the externally threaded housing of hollow band (5), and fixes with housing.Closed end that is welded in sheath (1) of heater element, the other end is welded on the lead connecting bolt (7).The lead connecting bolt fixes by insulator (6) and hollow housing, and its front portion is positioned at housing (5), and afterbody stretches out housing (5).Fig. 2 is another most preferred embodiment cut-away view of the utility model.Its basic structure and Fig. 1 are identical, and difference just is that heater sheath (1) puts between the middle part of that section of housing (5) and the housing gapped (8), can reduce the conduction of heat in housing like this, increases the thermal efficiency of product.
Claims (6)
1, the quick type glow plug of a kind of binary heat radiating structure, include heater element, sheath, the hollow housing, insulator and lead connecting bolt, sheath one end seals an end opening, and open end portion extend in the hollow housing and with described housing and interfixes, be positioned at closed end that is welded in sheath of heater element of sheath, the other end is welded on the lead connecting bolt, the lead connecting bolt fixes by insulator and hollow housing, its front portion is positioned at housing, afterbody stretches out housing, it is characterized in that described heater element is made of the main heating element of small resistor-temperature coefficient and the heater series connection of paying of big positive resistance-temperature coefficient.
2, the quick type glow plug of binary heat radiating structure according to claim 1 is characterized in that main heating element preceding, pay heater after.
3, the quick type glow plug of binary heat radiating structure according to claim 1 is characterized in that main heating element is enclosed within to pay on the heater.
4, the quick type glow plug of binary heat radiating structure according to claim 1 is characterized in that main heating element and to pay heater placed side by side.
5, the quick type glow plug of binary heat radiating structure according to claim 1, it is gapped to it is characterized in that sheath puts between the middle part of that section in the housing and the housing.
6, the quick type glow plug of binary heat radiating structure according to claim 1 is characterized in that being filled with between heater element and the sheath insulating heat-conductive powder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN93224332U CN2167203Y (en) | 1993-09-07 | 1993-09-07 | Quick electric heating means of two units heating structure type |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN93224332U CN2167203Y (en) | 1993-09-07 | 1993-09-07 | Quick electric heating means of two units heating structure type |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2167203Y true CN2167203Y (en) | 1994-06-01 |
Family
ID=33802395
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN93224332U Ceased CN2167203Y (en) | 1993-09-07 | 1993-09-07 | Quick electric heating means of two units heating structure type |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2167203Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1063008C (en) * | 1993-01-21 | 2001-03-07 | 发射技术有限公司 | Electrically insulating supporting structure capable of metallic bonding, process for producing the same and its use |
-
1993
- 1993-09-07 CN CN93224332U patent/CN2167203Y/en not_active Ceased
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1063008C (en) * | 1993-01-21 | 2001-03-07 | 发射技术有限公司 | Electrically insulating supporting structure capable of metallic bonding, process for producing the same and its use |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C35 | Partial or whole invalidation of patent or utility model | ||
| IW01 | Full invalidation of patent right |
Decision date of declaring invalidation: 19990514 Decision number of declaring invalidation: 1361 |