CN201060707Y - Irradiation crosslinked polyvinyl chloride thermal contraction insulated sleeve - Google Patents
Irradiation crosslinked polyvinyl chloride thermal contraction insulated sleeve Download PDFInfo
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- CN201060707Y CN201060707Y CNU200720000478XU CN200720000478U CN201060707Y CN 201060707 Y CN201060707 Y CN 201060707Y CN U200720000478X U CNU200720000478X U CN U200720000478XU CN 200720000478 U CN200720000478 U CN 200720000478U CN 201060707 Y CN201060707 Y CN 201060707Y
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Abstract
The utility model discloses a heat-shrinkable insulated sleeve made from irradiated and cross-linked polyvinyl chloride (PVC), which is characterized in that the cross section of the insulated sleeve is ring shaped and has the heat-shrinkable function, wherein, the ratio of the inner diameter size of the sleeve before shrinkage and after shrinkage is 2:1, or 3:1, or 4:1. The utility model is widely applied to electrolytic capacitors, electronic components, decorative lightings, copper blocks in switch cabinets of electric appliances, various rechargeable batteries, combined packages of battery, various power cord connectors, insulating and damp-proof coating of wire bundle and telescopic rods, and has the functions of appearance beautification, insulation, damp prevention, corrosion resistance and dust prevention to the packaged objects. The utility model has the advantages of satisfying the special requirements in military industry, aviation and aerospace, power plant, substation, electric heater, internal connecting wires of small household appliance, and communication industry, and according with the UL standard and Canada national standard of the product performance.
Description
Technical field
The utility model relates to electronic technology field, specifically, is a kind of irradiation cross-linked polyvinyl chloride heat shrinkage insulation sleeve pipe.
Background technology
At present, modal plastic bushing is a PVC sleeve, and its cross section is a cirque structure, and an inner and outer wall is arranged, and also can change after inside and outside caliber is heated usually.This kind PVC sleeve is used for electric wire can realize 105 ℃ of rated temperatures, rated voltage 300/600V, and can protect electric wire.But PVC sleeve has only 2 years to 3 years common useful life, and is yielding, and easily fusion has the fusion dropping during burning, cause short circuit easily, burns electrical equipment and causes fire.In recent years, along with the raising of development of electronic technology and technical merit, also have higher requirement for security performances such as the fire protecting performance of insulating material, ageing-resistant performance, dielectric property, environmental protection.
The utility model content
The utility model has overcome above-mentioned shortcoming, has proposed a kind of brand-new irradiation cross-linked polyvinyl chloride heat shrinkage insulation sleeve pipe (Irradiated or Cross-Linked PVC Heat-shrinkableinsulated sleeving).
The technical scheme in the invention for solving the technical problem is:
This polyvinyl chloride insulation sleeve pipe, its cross section are cirque structure, and this sleeve pipe has not a contraction flow region and a contraction flow region, and the ratio of the internal diameter of contraction flow region and contraction flow region is not 2: 1 or 3: 1 or 4: 1.The internal diameter of described not contraction flow region is preferably 1.0～50.0 millimeters.
The used polyvinyl chloride of the utility model adopts cross-linked polrvinyl chloride, adopts high-energy ray bombardment (irradiation), and cross-linked polrvinyl chloride is when being subjected to the high-power electron beam irradiation, and chemical bond will be earlier destroyed, form the network structure of new strand then.Thereby form a kind of heat cured brand-new material.
Advantage of the present utility model is: owing to adopted the mode of cross-linking radiation, this shell material forms the thermosetting material by original thermoplastic by behind the cross-linking radiation, therefore its useful life is more than 10 years, and is not yielding, is difficult for fusion, there is not the fusion dropping during burning, high flame retardant, under the condition that temperature sharply raises, can fusion and cause electrical short-circuit, lowered greatly and burnt the possibility that electrical equipment causes fire, safer.The tensile strength of this irradiation cross-linked polyvinyl chloride heat shrinkage insulation sleeve pipe, resistance to wear, crushing resistance, impact resistance, all more existing thermal contraction PVC sleeve of tear resistance excellence.
The insulation and moisture that the utility model is widely used in the assembly packaging of the copper bar in electrolytic capacitor, electronic component, lamp decoration, the electrical switchgear, all kinds of rechargeable battery, battery, various power cord connector, wire harness coats and expansion link, beautifies outward appearance, insulation, protection against the tide, anticorrosion, dustproof effect to being played by coating.The utility model satisfies the extraordinary demand of military project, Aero-Space, power plant, transformer station, thermoelectric heating device, small household appliances internal connection line and communications industry.Properties of product meet the national standard of UL (Underwriters ' Laboratories/ American insurance laboratory) standard and CSA (Canadian national standard).
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Description of reference numerals: 1. contraction flow region not; 2. contraction flow region; 3. inner chamber.
Embodiment
Embodiment 1
As shown in Figure 1, the cross section of vinyl chloride insulating sleeve of the present utility model is a cirque structure, and this sleeve pipe has not a contraction flow region 1 and a contraction flow region 2, and the internal diameter of contraction flow region 1 is not 4mm, and the internal diameter of contraction flow region 2 is 1mm.Sleeve pipe all is an integral body before and after shrinking.Insulating sleeve is hollow, thereby has an inner chamber 3, and lead or cable (not shown) place in the inner chamber 3.Polyvinyl chloride adopts the polyvinyl chloride of cross-linking radiation.
Shown in Fig. 1, only be the part of irradiation cross-linked polyvinyl chloride heat shrinkage insulation sleeve pipe described in the utility model, in fact contraction flow region 1 and contraction flow region 2 can not prolong on length direction, form elongated pipe.
The irradiation cross-linked polyvinyl chloride heat shrinkage insulation sleeve pipe of gained, its tensile strength 10.3MPa, dielectric strength is greater than 42.6kV/mm, and not yielding, is difficult for fusion, do not have the fusion dropping during burning.
In the present embodiment, the internal diameter of contraction flow region 1 is not 10mm, and the internal diameter of contraction flow region 2 is 5mm, and other structure and embodiment 1 are identical.
In the present embodiment, the internal diameter of contraction flow region 1 is not 50mm, and the internal diameter of contraction flow region 2 is 25mm, and other structure and embodiment 1 are identical.
The irradiation cross-linked polyvinyl chloride heat shrinkage insulation sleeve pipe of embodiment 2 and 3 gained, its various performances are substantially the same manner as Example 1, have excellent mechanical property and electric property equally, and useful life is more than 10 years.
More than irradiation cross-linked polyvinyl chloride heat shrinkage insulation sleeve pipe provided by the utility model is described in detail, used specific case herein principle of the present utility model and execution mode are set forth, the explanation of above embodiment just is used for helping to understand method of the present utility model and core concept thereof; Simultaneously, for one of ordinary skill in the art, according to thought of the present utility model, the part that all can change in specific embodiments and applications, in sum, this description should not be construed as restriction of the present utility model.
Claims (3)
1. polyvinyl chloride insulation sleeve pipe, its cross section is a cirque structure, it is characterized in that: this sleeve pipe has not a contraction flow region and a contraction flow region, and the ratio of the internal diameter of contraction flow region and contraction flow region is not 2: 1 or 3: 1 or 4: 1.
2. polyvinyl chloride insulation sleeve pipe according to claim 1 is characterized in that: the internal diameter of described not contraction flow region is 1.0～50.0 millimeters.
3. polyvinyl chloride insulation sleeve pipe according to claim 1 is characterized in that: described polyvinyl chloride is the polyvinyl chloride of cross-linking radiation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200720000478XU CN201060707Y (en) | 2007-08-01 | 2007-08-01 | Irradiation crosslinked polyvinyl chloride thermal contraction insulated sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200720000478XU CN201060707Y (en) | 2007-08-01 | 2007-08-01 | Irradiation crosslinked polyvinyl chloride thermal contraction insulated sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201060707Y true CN201060707Y (en) | 2008-05-14 |
Family
ID=39409191
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200720000478XU Expired - Fee Related CN201060707Y (en) | 2007-08-01 | 2007-08-01 | Irradiation crosslinked polyvinyl chloride thermal contraction insulated sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201060707Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102360648A (en) * | 2011-09-28 | 2012-02-22 | 沈阳电业局电缆厂 | Overhead conductor insulation sleeve |
| CN103646825A (en) * | 2013-11-15 | 2014-03-19 | 益和电气集团股份有限公司 | Silicone rubber insulation sheath for heavy-current high-voltage circuit breaker |
| CN104300489A (en) * | 2014-09-17 | 2015-01-21 | 国家电网公司 | Cable clamp sleeve |
| CN104428846A (en) * | 2012-06-07 | 2015-03-18 | 捷豹路虎有限公司 | Insulating sock of traction battery |
| CN110634642A (en) * | 2018-06-21 | 2019-12-31 | 株式会社鹭宫制作所 | Electromagnetic coil |
-
2007
- 2007-08-01 CN CNU200720000478XU patent/CN201060707Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102360648A (en) * | 2011-09-28 | 2012-02-22 | 沈阳电业局电缆厂 | Overhead conductor insulation sleeve |
| CN104428846A (en) * | 2012-06-07 | 2015-03-18 | 捷豹路虎有限公司 | Insulating sock of traction battery |
| CN104428846B (en) * | 2012-06-07 | 2017-11-14 | 捷豹路虎有限公司 | The insulation sleeve of traction battery |
| US10147519B2 (en) | 2012-06-07 | 2018-12-04 | Jaguar Land Rover Limited | Insulating sock of a traction battery |
| CN103646825A (en) * | 2013-11-15 | 2014-03-19 | 益和电气集团股份有限公司 | Silicone rubber insulation sheath for heavy-current high-voltage circuit breaker |
| CN104300489A (en) * | 2014-09-17 | 2015-01-21 | 国家电网公司 | Cable clamp sleeve |
| CN110634642A (en) * | 2018-06-21 | 2019-12-31 | 株式会社鹭宫制作所 | Electromagnetic coil |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080514 Termination date: 20100801 |