CN202583114U - Mosaic type plate-like oxygen sensor - Google Patents
Mosaic type plate-like oxygen sensor Download PDFInfo
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- CN202583114U CN202583114U CN 201220172937 CN201220172937U CN202583114U CN 202583114 U CN202583114 U CN 202583114U CN 201220172937 CN201220172937 CN 201220172937 CN 201220172937 U CN201220172937 U CN 201220172937U CN 202583114 U CN202583114 U CN 202583114U
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- ceramic heater
- oxygen sensor
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Abstract
The utility model relates to the technical field of a zirconium dioxide oxygen sensor for an automobile electronic fuel injection engine, in particular to a mosaic type plate-like oxygen sensor. The mosaic type plate-like oxygen sensor comprises a ceramic heater, a zirconium oxide sensitive element, a glass glaze sealing layer, a heating circuit, a reference gas channel, an aluminium oxide matrix and a groove, wherein the zirconium oxide sensitive element is arranged in the ceramic heater, the ceramic heater is connected with the zirconium oxide sensitive element through the glass glaze sealing layer, the ceramic heater comprises the aluminium oxide matrix and the groove, the groove is arranged on the upper surface of the aluminium oxide matrix, the heating circuit is arranged on the lower surface, and the reference gas channel is arranged between the zirconium oxide sensitive element and the groove. The mosaic type plate-like oxygen sensor has the advantages of simple structure, small size, light weight, direct and fast heat transfer, fast response speed, simple process and low cost, and can significantly shorten the waiting time from startup of the engine to heating activation of the oxygen sensor, improve the combustion efficiency of the engine, realize obvious economic and social benefits and also realize easiness in use and popularization.
Description
Technical field
The utility model relates to the technical field of a kind of automotive electric injection engine with zirconia oxygen, especially a kind of inserted tabular lambda sensor.
Background technology
Phase automobile industry development is swift and violent, and exhaust emission standard constantly improves, and the requirement of oxygen sensor in use for car is also improved constantly.At present domestic what generally adopt is the tubular type zirconia oxygen, uses tubulose zirconium dioxide sensing probe, the middle aluminium oxide ceramics heating core of introducing; Type of heating is an indirect heating, and product size is big, complex structure; Response speed is slow, is difficult to satisfy the exhaust emissions requirement of present increasingly stringent.Begin to use in batches the tabular lambda sensor of integral type in the world, but owing to adopted high temperature or middle temperature burning technology system altogether, ubiquity complex process, the low shortcoming of dielectric voltage withstand when material cost height, the easy blowby of heater circuit, work.
The utility model content
Existing zirconia oxygen product size is big in order to overcome, complex structure, response speed is slow and material cost is high deficiency, and the utility model provides a kind of inserted tabular lambda sensor.
The utility model solves the technical scheme that its technical matters adopted: a kind of inserted tabular lambda sensor; Comprise ceramic heater, zirconia sensitive element, glass glaze sealant, heating circuit, reference gas passage, alumina substrate and groove; Be provided with the zirconia sensitive element in the ceramic heater; Ceramic heater is connected through the glass glaze sealant with the zirconia sensitive element, and ceramic heater is made up of alumina substrate and groove, and the alumina substrate upper surface is provided with groove; Lower surface is provided with the heating circuit, is provided with reference gas passage between zirconia sensitive element and the groove.
According to another embodiment of the utility model, comprise that further zirconia sensitive element one side is provided with interior electrode, opposite side is provided with external electrode, and the external electrode surface is covered with porous protective layer.
According to another embodiment of the utility model, comprise that further heating circuit front portion is covered with one deck glass glaze insulation course, two heatings of formation circuit pins are exposed at the rear portion.
The beneficial effect of the utility model is, this inserted tabular lambda sensor is simple in structure, and size and quality are little; Conduct heat directly fast, response speed is fast, and technology is simple; Cost is low, can significantly shorten after the engine start to the stand-by period that lambda sensor heats up and activates, and has improved engine combustion efficiency; Economic and social benefit is obvious, is easy to use promote.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is further specified.
Fig. 1 is the structural representation of the utility model;
Fig. 2 is the front elevation of the utility model;
Fig. 3 is the rear view of the utility model;
1. ceramic heaters among the figure, 2. zirconia sensitive element, 3. glass glaze sealant, 4. heating circuit, 5. reference gas passage, 6. porous protective layer, 7. in electrode, 8. external electrode, 9. glass glaze insulation course, 10. heating circuit pin, 11. alumina substrates, 12. grooves.
Embodiment
Like Fig. 1 is the structural representation of the utility model; A kind of inserted tabular lambda sensor comprises ceramic heater 1, zirconia sensitive element 2, glass glaze sealant 3, heating circuit 4, reference gas passage 5, alumina substrate 11 and groove 12, is provided with zirconia sensitive element 2 in the ceramic heater 1; Ceramic heater 1 is connected through glass glaze sealant 3 with zirconia sensitive element 2; Ceramic heater 1 is made up of alumina substrate 11 and groove 12, and alumina substrate 11 upper surfaces are provided with groove 12, and lower surface is provided with heating circuit 4; Be provided with reference gas passage 5 between zirconia sensitive element 2 and the groove 12; Reduced the energy consumption of sensor, technology is simple, low cost of manufacture.
Like Fig. 2 is the front elevation of the utility model, and zirconia sensitive element 2 one sides are provided with interior electrode 7, and opposite side is provided with external electrode 8, and external electrode 8 surfaces are covered with porous protective layer 6, have accelerated electric response speed.
Like Fig. 3 is the rear view of the utility model, and heating circuit 4 front portions are covered with one deck glass glaze insulation course 9, and two heatings of formation circuit pins 10 are exposed at the rear portion, have improved high temperature insulation characteristic greatly.
Claims (3)
1. inserted tabular lambda sensor; Comprise ceramic heater (1), zirconia sensitive element (2), glass glaze sealant (3), heating circuit (4), reference gas passage (5), alumina substrate (11) and groove (12); Be provided with zirconia sensitive element (2) in the ceramic heater (1); Ceramic heater (1) is connected through glass glaze sealant (3) with zirconia sensitive element (2); It is characterized in that ceramic heater (1) is made up of alumina substrate (11) and groove (12), alumina substrate (11) upper surface is provided with groove (12); Lower surface is provided with heating circuit (4), is provided with reference gas passage (5) between zirconia sensitive element (2) and the groove (12).
2. inserted tabular lambda sensor according to claim 1 is characterized in that, zirconia sensitive element (2) one sides are provided with interior electrode (7), and opposite side is provided with external electrode (8), and external electrode (8) surface is covered with porous protective layer (6).
3. inserted tabular lambda sensor according to claim 1 is characterized in that, heating circuit (4) front portion is covered with one deck glass glaze insulation course (9), and two heatings of formation circuit pins (10) are exposed at the rear portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220172937 CN202583114U (en) | 2012-04-23 | 2012-04-23 | Mosaic type plate-like oxygen sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220172937 CN202583114U (en) | 2012-04-23 | 2012-04-23 | Mosaic type plate-like oxygen sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202583114U true CN202583114U (en) | 2012-12-05 |
Family
ID=47252515
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220172937 Expired - Lifetime CN202583114U (en) | 2012-04-23 | 2012-04-23 | Mosaic type plate-like oxygen sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202583114U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102636527A (en) * | 2012-04-23 | 2012-08-15 | 常州联德电子有限公司 | Inlaid plate-shaped oxygen sensor and preparation method thereof |
-
2012
- 2012-04-23 CN CN 201220172937 patent/CN202583114U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102636527A (en) * | 2012-04-23 | 2012-08-15 | 常州联德电子有限公司 | Inlaid plate-shaped oxygen sensor and preparation method thereof |
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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: 20121205 |
|
| CX01 | Expiry of patent term |