CN217009890U - Connecting insulating tube, ignition sheath assembly and spark plug - Google Patents
Connecting insulating tube, ignition sheath assembly and spark plug Download PDFInfo
- Publication number
- CN217009890U CN217009890U CN202122547149.XU CN202122547149U CN217009890U CN 217009890 U CN217009890 U CN 217009890U CN 202122547149 U CN202122547149 U CN 202122547149U CN 217009890 U CN217009890 U CN 217009890U
- Authority
- CN
- China
- Prior art keywords
- ignition
- insulating tube
- protective layer
- insulating
- insulating pipe
- 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.)
- Active
Links
Images
Landscapes
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The utility model discloses a connecting insulating pipe which comprises an insulating pipe, wherein a dielectric protective layer is arranged on the inner wall of the insulating pipe, the insulating pipe and the dielectric protective layer are formed through injection molding, or the dielectric protective layer is sleeved on the inner wall of the insulating pipe manually or mechanically, and the connecting insulating pipe is used for an ignition protective sleeve assembly of a spark plug. The utility model improves the insulating property of the connecting insulating pipe by arranging the dielectric protective layer, improves the voltage resistance by more than 50 percent, improves the durability by more than 30 percent, solves the problem that the insulating property of the connecting insulating pipe is reduced after the connecting insulating pipe is used for a long time to cause electric breakdown, prolongs the service life of the ignition sheath component and the spark plug, and improves the safety of the ignition sheath component and the spark plug.
Description
Technical Field
The utility model relates to the field of engine ignition systems, in particular to a connecting insulating tube, an ignition sheath assembly and a spark plug.
Background
The ignition sheath component of the natural gas engine plays an important role in the engine, the main component of the product in the ignition sheath component is silicon rubber, the phenomenon that a certain product breaks down can occur when the product bears a severe working state under continuous working in the using process at present, and the reasons for the phenomenon are as follows: the technical problem of injection molding of the UP pipe product is solved; after the outside is stained, the insulating property of the product is reduced, so that the product is punctured, and the ignition sheath assembly can not work normally or be scrapped due to the fact that the conventional ignition sheath assembly is a mechanical press-formed product, and the normal operation of an engine is influenced.
The patent publication No. CN210052983U discloses a high-durability direct-insertion type rubber sleeve for gas, which comprises an ignition plug, a full-coverage type rubber sleeve sheath head, an insulating hard tube, a first conductive spring, a second conductive spring, a polytetrafluoroethylene tube and a spark plug sheath; the ignition plug is connected with the top of the full-coverage type rubber sleeve sheath head; the insulating hard tube is inserted into the full-coverage type rubber sleeve sheath head for connection; the top end of the polytetrafluoroethylene tube is connected with the bottom end of the full-coverage type rubber sleeve sheath head; the spark plug sheaths are distributed on the inner wall of the bottom of the polytetrafluoroethylene tube. The insulating hard tube of this patent warp, and external stained back insulating properties descends, leads to the product to puncture, leads to producing the gap between gum cover and insulating hard tube easily for the air gets into the gap, can puncture this gap internal air in the high-voltage overvoltage, produces the phenomenon of discharging, makes the suit can not normally ignite, leads to vehicle engine to appear catching fire the trouble, influences the vehicle operation.
SUMMERY OF THE UTILITY MODEL
Aiming at the problem that in the prior art, the insulating property of a spark plug protective sleeve is reduced due to long-time use, and the product is broken down, the utility model provides a connecting insulating tube, an ignition protective sleeve assembly comprising the connecting insulating tube and a spark plug.
The technical scheme adopted by the utility model is as follows:
the utility model provides a connect insulating tube includes the insulating tube, the insulating tube inner wall is equipped with the dielectric protection layer, the dielectric protection layer improves the dielectric property of connecting the insulating tube through the combination that increases insulating tube thickness and high dielectric material, prevents that the insulating tube from being punctured by electricity, prolongs the life who connects the insulating tube and contain the fire prevention sheath subassembly or the spark plug of this structure, improves the safety quality of spark plug product.
Further, the insulating tube and the dielectric protective layer are connected into a whole through injection molding.
Further, the dielectric protective layer is sleeved on the inner wall of the insulating pipe manually or mechanically.
Furthermore, the dielectric protective layer is a polytetrafluoroethylene layer, so that the high temperature resistance and the long aging life are realized, the electric insulation is not influenced by temperature, the dielectric constant and the dielectric loss in a wider frequency range are low, and the breakdown voltage, the volume resistivity and the arc resistance are high.
Further, the thickness of the dielectric protective layer is more than or equal to 0.5 mm.
An ignition boot assembly comprising a connecting insulator tube as described in any one of the above.
Further, the ignition sheath assembly further comprises a spring, a Teflon pipe, a first sealing rubber sleeve and a second sealing rubber sleeve, two ends of the connecting insulating pipe are respectively connected with the first sealing rubber sleeve and the second sealing rubber sleeve, the Teflon pipe is sleeved at the connecting position of the connecting insulating pipe and the first sealing rubber sleeve, and the dielectric protective layer is internally provided with a spring.
Furthermore, the second sealing rubber sleeve is connected with the connecting insulating pipe in a threaded embedding manner.
Further, the top end of the spring is provided with a conductive coil.
A spark plug comprising an ignition boot assembly as described in any of the above.
Compared with the prior art, the utility model has the beneficial effects that:
the dielectric protective layer arranged on the inner wall of the insulating tube is high-temperature resistant, long in aging life, free of temperature influence on electrical insulation, low in dielectric constant and dielectric loss in a wide frequency range, high in breakdown voltage, volume resistivity and arc resistance, capable of effectively preventing fouling and reducing insulation performance, and capable of greatly improving overall voltage resistance and durability of breakdown products, greatly reducing probability of breakdown, improving overall voltage resistance of the products by more than 50% and improving durability by more than 30%.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
In the figure, 1, a second sealing rubber sleeve, 2, a spring, 3, a dielectric protective layer, 4, an insulating tube, 5, a Teflon tube, 6 and a first sealing rubber sleeve.
Detailed Description
The utility model will be further described with reference to the following detailed description, wherein the drawings are given by way of illustration only, and are not intended to be in any way limiting; to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
Example 1
The utility model provides a connect insulating tube, includes dielectric inoxidizing coating 3 and insulating tube 4, dielectric inoxidizing coating 3 is integrative with insulating tube 4, is located inside insulating tube 4, and dielectric inoxidizing coating 3 is located insulating tube 4 middle part. The dielectric protective layer 3 is a polytetrafluoroethylene layer, is high temperature resistant, has long aging life, is not influenced by temperature in electrical insulation, has very low dielectric constant and dielectric loss in a wider frequency range, has higher breakdown voltage, volume resistivity and arc resistance, and can effectively prevent electric leakage at a connection part; the thickness of the tube wall of the dielectric protective layer 3 is 1mm, the tube can resist the temperature of 250 ℃ and the withstand voltage is 35kv, after the integral injection molding, the integral pressure resistance of the product can be improved by more than 50%, the durability can be improved by more than 30%, and the probability of breakdown is greatly reduced.
The dielectric protective layer 3 and the insulating pipe 4 can be integrally formed by injection molding or the dielectric protective layer 3 of the formed insulating pipe 4 is sleeved, namely, the dielectric protective layer is sleeved to the inner wall of the insulating pipe manually or mechanically.
Example 2
An ignition sheath assembly comprises a first sealing rubber sleeve 6, a second sealing rubber sleeve 1, a spring 2, a Teflon pipe 5 and a connecting insulating pipe.
The connecting insulating tube comprises a dielectric protective layer 3 and an insulating tube 4, wherein the dielectric protective layer 3 and the insulating tube 4 are integrated and are positioned inside the insulating tube 4, and the dielectric protective layer 3 is positioned in the middle of the insulating tube 4. The dielectric protective layer 3 is a polytetrafluoroethylene layer, is high temperature resistant, has long aging life, is not influenced by temperature in electrical insulation, has very low dielectric constant and dielectric loss in a wider frequency range, has higher breakdown voltage, volume resistivity and arc resistance, and can effectively prevent electric leakage at a connection part; the thickness of the tube wall of the dielectric protective layer 3 is 1mm, the tube can resist the temperature of 250 ℃ and the withstand voltage is 35kv, after the integral injection molding, the integral pressure resistance of the product can be improved by more than 50%, the durability can be improved by more than 30%, and the probability of breakdown is greatly reduced.
One end of the insulating tube 4 is connected with the second sealing rubber sleeve 1 in a threaded and embedded mode, the dismounting is easy, the sealing effect is achieved, and dust can be prevented from falling into the cylinder body. The other end of the insulating tube 4 is connected with the second sealing rubber sleeve 1, and a Teflon tube 5 is sleeved at the joint of the insulating tube 4 and the second sealing rubber sleeve 1, so that the electric breakdown resistance of the joint of the insulating tube 4 and the second sealing rubber sleeve 1 is improved, and the connection safety is ensured.
A spark plug comprising the above ignition boot assembly using an insulating tube containing a dielectric protective layer.
It should be understood that the above examples are only for clearly illustrating the technical solutions of the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (9)
1. The connecting insulating pipe comprises an insulating pipe body and is characterized in that a dielectric protective layer is arranged on the inner wall of the insulating pipe body, and the dielectric protective layer is a polytetrafluoroethylene layer.
2. The joint insulating tube of claim 1, wherein the insulating tube and the dielectric shield are joined as a single piece by injection molding.
3. The joint insulation pipe of claim 1, wherein the dielectric shield is manually or mechanically sleeved to the inner wall of the insulation pipe.
4. A joint insulation pipe according to claim 1, wherein the thickness of said dielectric shield layer is 0.5mm or more.
5. An ignition boot assembly comprising the connecting insulating tube according to any one of claims 1 to 4.
6. The ignition sheath assembly of claim 5, further comprising a spring, a Teflon tube, a first sealant sleeve and a second sealant sleeve, wherein two ends of the connecting insulating tube are respectively connected with the first sealant sleeve and the second sealant sleeve, the Teflon tube is sleeved at the joint of the connecting insulating tube and the first sealant sleeve, and the spring is arranged in the dielectric protective layer.
7. The ignition sheath assembly of claim 6, wherein the second sealant sleeve is connected with the connecting insulating tube by threaded engagement.
8. An ignition sheath assembly as claimed in claim 6, wherein the spring is provided with an electrically conductive coil.
9. A spark plug comprising the ignition boot assembly of any one of claims 6 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122547149.XU CN217009890U (en) | 2021-10-21 | 2021-10-21 | Connecting insulating tube, ignition sheath assembly and spark plug |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122547149.XU CN217009890U (en) | 2021-10-21 | 2021-10-21 | Connecting insulating tube, ignition sheath assembly and spark plug |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217009890U true CN217009890U (en) | 2022-07-19 |
Family
ID=82380300
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122547149.XU Active CN217009890U (en) | 2021-10-21 | 2021-10-21 | Connecting insulating tube, ignition sheath assembly and spark plug |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217009890U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117360026A (en) * | 2023-12-07 | 2024-01-09 | 迈默智塔(无锡)科技有限公司 | Composite material with sound insulation and electromagnetic prevention functions for building |
-
2021
- 2021-10-21 CN CN202122547149.XU patent/CN217009890U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117360026A (en) * | 2023-12-07 | 2024-01-09 | 迈默智塔(无锡)科技有限公司 | Composite material with sound insulation and electromagnetic prevention functions for building |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| AU2007275029B2 (en) | High power discharge fuel ignitor | |
| KR101446725B1 (en) | Composite spark plug | |
| CN104836120A (en) | Spark plug and high-voltage ignition line | |
| CN217009890U (en) | Connecting insulating tube, ignition sheath assembly and spark plug | |
| JPS63500970A (en) | creeping discharge type spark plug | |
| CN110098564A (en) | A kind of band external series gap lightning arrester and lightning protection system | |
| CN109887693A (en) | A kind of variable in-line gap composite insulating metal oxide lightning arrester | |
| CN107481821B (en) | Lightning protection insulator | |
| KR101822723B1 (en) | Ignition plug | |
| JP2014041700A (en) | Spark plug | |
| CN210778065U (en) | Multi-cavity arc blowing type lightning protection insulating cross arm | |
| JP6158283B2 (en) | Spark plug | |
| KR200454411Y1 (en) | Lead Wire Attached Polymer Lightning Arrester | |
| CN209561111U (en) | A kind of variable in-line gap composite insulating metal oxide lightning arrester | |
| CN210517077U (en) | High-voltage wire connecting structure for natural gas engine | |
| CN208240429U (en) | A kind of composite insulating metal oxide lightning arrester | |
| CN210156189U (en) | Gap type lightning arrester | |
| CN112736649A (en) | Ignition electric nozzle with high-voltage insulator | |
| CN211182799U (en) | Spark plug with big head coated with insulator | |
| CN208001074U (en) | Automotive engine ignition system | |
| KR100622573B1 (en) | A disconnector for the surge arrester | |
| US2351564A (en) | Electrical discharge device | |
| CN212085432U (en) | Ignition coil assembly for gasoline engine and engine | |
| CN205428614U (en) | Orientation breaks away from type plug arrester | |
| CN214956349U (en) | Transformer with long service life |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |