CN112564030A - Reversible color-changing insulating heat shrinkable sleeve - Google Patents
Reversible color-changing insulating heat shrinkable sleeve Download PDFInfo
- Publication number
- CN112564030A CN112564030A CN202011337944.XA CN202011337944A CN112564030A CN 112564030 A CN112564030 A CN 112564030A CN 202011337944 A CN202011337944 A CN 202011337944A CN 112564030 A CN112564030 A CN 112564030A
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- China
- Prior art keywords
- color
- insulating heat
- changing
- shrinkable sleeve
- reversible
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- Pending
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G15/00—Cable fittings
- H02G15/08—Cable junctions
- H02G15/18—Cable junctions protected by sleeves, e.g. for communication cable
- H02G15/1806—Heat shrinkable sleeves
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K9/00—Tenebrescent materials, i.e. materials for which the range of wavelengths for energy absorption is changed as a result of excitation by some form of energy
- C09K9/02—Organic tenebrescent materials
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/70—Insulation of connections
- H01R4/72—Insulation of connections using a heat shrinking insulating sleeve
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Cable Accessories (AREA)
- Measuring Temperature Or Quantity Of Heat (AREA)
Abstract
The invention discloses a reversible color-changing insulating heat-shrinkable sleeve, which comprises an insulating heat-shrinkable sleeve sleeved on a lead bar, wherein the surface of the insulating heat-shrinkable sleeve is coated with a thermosensitive color-changing material, so that an operation and maintenance worker can judge the temperature of a joint by observing the color-changing condition of the thermosensitive color-changing material when the temperature rise of the joint of the lead bar and a cable is overhigh, the cost is low, and the maintenance is convenient.
Description
Technical Field
The invention relates to the technical field of heating fault detection of electrical equipment, in particular to a reversible color-changing insulating heat-shrinkable sleeve.
Background
The leads between the devices in the high-voltage switch cabinet are connected in a lap joint mode. However, the contact resistance at the joint is easily increased due to long-term large current, contact surface aging and other factors, so that the temperature rise of the contact is too high to cause the heating of the connection point, and even the safety accident of the power system is caused. The traditional insulating thermal shrinkable sleeve is made of polyolefin materials, is used on an equipment joint, plays an insulating function, and has the defect that the traditional insulating thermal shrinkable sleeve cannot quickly and accurately respond to over-high temperature faults. At present, operation and maintenance personnel cannot visually and accurately judge the temperature of the connection position of internal equipment of the high-voltage switch cabinet during normal inspection, and the potential heat generation hazard at the connection position of leads between the equipment in the high-voltage power switch cabinet is difficult to find.
In the prior art, operation and maintenance personnel detect the temperature of the connection part of internal equipment by carrying out infrared temperature measurement on a switch cabinet body or adopting a high-voltage switch cabinet temperature online monitoring system. However, these methods have high operation cost and difficult maintenance, and it is inconvenient for operation and maintenance personnel to intuitively and accurately judge the temperature at the connection position of the internal equipment of the high-voltage switch cabinet.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the reversible color-changing insulating heat shrinkable sleeve is provided, so that operation and maintenance personnel can intuitively and accurately judge the temperature of the connection position of the internal equipment of the high-voltage switch cabinet, and the reversible color-changing insulating heat shrinkable sleeve is low in cost and simple to maintain.
In order to solve the technical problems, the invention adopts the technical scheme that:
the reversible color-changing insulating heat shrinkable sleeve comprises an insulating heat shrinkable sleeve sleeved on a wire row, wherein a thermosensitive color-changing material is coated on the surface of the insulating heat shrinkable sleeve.
In conclusion, the beneficial effects of the invention are as follows: the utility model provides a reversible insulating pyrocondensation cover that discolours, through scribble the temperature sensing color-changing material on insulating pyrocondensation cover for fortune dimension personnel through the condition of discolouing of observing temperature sensing color-changing material alright judge the temperature height condition of junction when the junction temperature rise of wire row and cable is too high, with low costs and maintain the convenience.
Drawings
FIG. 1 is a schematic view of an overall structure of a reversible color-changing insulating heat shrinkable sleeve according to an embodiment of the present invention;
description of reference numerals:
1. insulating thermal shrinkage sleeves; 2. a wire row; 3. a buttonhole; 4. an exhaust hole; 5. a through hole; 6. an electrical cable.
Detailed Description
In order to explain technical contents, achieved objects, and effects of the present invention in detail, the following description is made with reference to the accompanying drawings in combination with the embodiments.
Referring to fig. 1, a reversible color-changing insulating heat shrinkable sleeve 1 includes an insulating heat shrinkable sleeve 1 sleeved on a wire row 2, and a surface of the insulating heat shrinkable sleeve 1 is coated with a thermochromic material.
From the above description, the beneficial effects of the present invention are: the utility model provides a reversible insulating pyrocondensation cover 1 that discolours, through scribbling the temperature sensing color-changing material on insulating pyrocondensation cover 1 for fortune dimension personnel through the condition of discolouing of observing temperature sensing color-changing material alright with the temperature height condition of judging the junction when the junction temperature rise of wire row 2 and cable 6 is too high, with low costs and maintain the convenience.
Further, the thermosensitive color-changing material is a reversible color-changing material.
As can be seen from the above description, the thermochromic material is a reversible color change. Along with the temperature rise of the connecting part of the wire row 2 and the cable 6, the thermosensitive color-changing material gradually changes into different colors; when the temperature at the connection of the conductor row 2 and the cable 6 drops, the color of the thermochromic material changes in turn accordingly.
Further, the thermochromic material is composed of a color former, a developer and a solvent;
the color former comprises triarylmethane phenols and fluoran compounds, the color developing agent comprises phenolic hydroxyl compounds and derivatives thereof, and the solvent comprises alcohols.
As is apparent from the above description, the above is a main constituent material of the thermochromic material. Wherein the developer receives electrons provided by the color former to generate color reaction, and the solvent determines the color change temperature of the material.
Further, the reversible color-changing temperature range of the thermosensitive color-changing material is 0-180 ℃.
From the above description, the temperature change range detectable by the thermochromic material is 0 ℃ to 180 ℃, and not only the temperature rise is too high, but also the temperature is too low.
Further, the device also comprises a fixing button;
and the side wall of the insulating heat shrinkable sleeve 1 is provided with a button hole 3 at a position where the side wall does not overlap with the wire row 2, and the fixing button is connected with the buckle of the button hole 3.
As can be seen from the above description, the insulating heat shrink 1 is more firmly fixed to the conductor row 2 by the bayonet connection of the grommet 3 with the fixing clip.
Furthermore, a through hole 5 through which a cable 6 electrically connected with the wire row 2 passes is arranged on one side of the insulating heat-shrinkable sleeve 1, and more than two exhaust holes 4 are arranged on the side wall of the insulating heat-shrinkable sleeve 1 close to the through hole 5;
the size of the exhaust hole 4 is (0, 25mm ].
As can be seen from the above description, the insulating heat shrinkable sleeve 1 is provided with the vent hole 4 for rapidly exhausting air between the conductor bar 2 and the insulating heat shrinkable sleeve 1 when the temperature rise at the connection between the conductor bar 2 and the cable 6 is too high, so as to avoid the occurrence of the phenomenon that the internal air causes the expansion deformation of the insulating heat shrinkable sleeve 1.
Further, each of the exhaust holes 4 has one or more of a circular shape and a polygonal shape.
Further, the reversible color-changing temperature range of the thermochromic material is divided into 3 to 6 display intervals.
As can be seen from the above description, the color development of the thermochromic material is divided into 3 to 6 display regions. The operation and maintenance personnel can judge whether the temperature at the connecting part of the wire row 2 and the cable 6 is abnormal or not according to the section corresponding to the color.
Referring to fig. 1, a first embodiment of the present invention is:
a reversible color-changing insulating heat shrinkable sleeve 1 is shown in figure 1 and comprises an insulating heat shrinkable sleeve 1 sleeved on a wire row 2, and the surface of the insulating heat shrinkable sleeve 1 is coated with a thermosensitive color-changing material.
In the embodiment, when the insulating heat shrinkable sleeve 1 senses the temperature change at the connection part of the wire row 2 and the cable 6, the temperature change is converted into the color change of the thermochromic material through the thermochromic material. Thus, the operation and maintenance personnel can know whether the temperature at the connection position of the wire row 2 and the cable 6 is abnormal or not through the color change of the thermosensitive color-changing material in the patrol process.
Referring to fig. 1, the second embodiment of the present invention is:
on the basis of the first embodiment, as shown in fig. 1, the reversible color-changing insulating heat-shrinkable sleeve 1 is a reversible color-changing material. Further, the thermochromic material is composed of a color former, a developer, and a solvent. The color former comprises triarylmethane phenols and fluoran compounds, the color developing agent comprises phenolic hydroxyl compounds and derivatives thereof, and the solvent comprises alcohols.
In this embodiment, the reversible color-changing temperature range of the thermochromic material is 0 to 180 degrees celsius, and the color display is divided into 3 to 6 display regions.
Referring to fig. 1, a third embodiment of the present invention is:
a reversible color-changing insulating heat shrinkable sleeve 1, as shown in fig. 1, further comprises a fixing button (not shown) on the basis of the first or second embodiment. And a buttonhole 3 is arranged at the non-overlapping position of the side wall of the insulating thermal shrinkable sleeve 1 and the wire row 2. The fixing buttons are connected with the button holes 3 in a buckling way.
As shown in fig. 1, a through hole 5 through which a cable 6 electrically connected to the conductor bar 2 passes is provided at one side of the insulating heat shrinkable sleeve 1, and more than two vent holes 4 are provided at a position close to the through hole 5 at the side of the insulating heat shrinkable sleeve 1. The size of the vent hole 4 is (0, 25 mm.) the design of the vent hole 4 is used for accelerating the air flow between the insulating heat shrinkable sleeve 1 and the wire row 2, thereby avoiding the phenomenon that the inside gas causes the expansion deformation of the insulating heat shrinkable sleeve 1.
In the present embodiment, each of the exhaust holes 4 has one or more of a circular shape or a polygonal shape. In conclusion, the invention discloses a reversible color-changing insulating heat-shrinkable sleeve, which is characterized in that a thermosensitive color-changing material is coated on the insulating heat-shrinkable sleeve, so that an operation and maintenance worker can judge the temperature of a joint by observing the color-changing condition of the thermosensitive color-changing material when the temperature rise of the joint of a wire row and a cable is too high, the cost is low, the maintenance is convenient, a button hole is arranged on the insulating heat-shrinkable sleeve, the insulating heat-shrinkable sleeve is further fixed by connecting a fixing button and a button hole bayonet, and an exhaust hole for exhausting gas between the insulating heat-shrinkable sleeve and the wire row is additionally arranged, so that the phenomenon that the insulating heat-shrinkable sleeve expands and deforms due to internal gas is avoided. The reversible color-changing material can display a temperature ranging from 0 ℃ to 180 ℃. The insulating heat shrinkable sleeve has the characteristics of good insulation and heat dissipation performance, reversible stable change of color along with temperature change and the like, and can provide a tool for monitoring the temperature of a power equipment joint for a transformer substation or an opening and closing station. The defect that the heating of the equipment connector in the electric high-voltage switch cabinet is difficult to observe is overcome, the labor intensity of workers is reduced, and the power supply reliability is improved.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent modifications made by the contents of the present specification and the drawings, or applied to the related technical fields directly or indirectly, are included in the scope of the present invention.
Claims (8)
1. The reversible color-changing insulating heat shrinkable sleeve comprises an insulating heat shrinkable sleeve sleeved on a wire row, and is characterized in that a thermosensitive color-changing material is coated on the surface of the insulating heat shrinkable sleeve.
2. A reversible color-changing insulating heat shrink according to claim 1 wherein the thermochromic material is a reversible color-changing material.
3. A reversible color-changing insulating heat-shrinkable sleeve according to claim 1, wherein said thermochromic material is composed of a color former, a developer and a solvent;
the color former comprises triarylmethane phenols and fluoran compounds, the color developing agent comprises phenolic hydroxyl compounds and derivatives thereof, and the solvent comprises alcohols.
4. A reversibly color-changing insulating heat shrink according to claim 2 wherein the reversibly color-changing temperature of said thermochromic material is in the range of 0 to 180 degrees celsius.
5. A reversible color changing insulating heat shrink according to claim 1 further comprising a fastener;
and the side wall of the insulating heat-shrinkable sleeve is provided with a button hole at a position where the side wall does not overlap with the lead bar, and the fixing button is connected with the buckle of the button hole.
6. The reversible color-changing insulating heat-shrinkable sleeve according to claim 1, wherein a through hole for a cable electrically connected with the conductor bar to pass through is formed on one side of the insulating heat-shrinkable sleeve, and more than two vent holes are formed on the side wall of the insulating heat-shrinkable sleeve, which is close to the through hole;
the size of the vent hole is (0, 25 mm).
7. A reversibly color changing insulative heat shrink sleeve according to claim 6 wherein each of said vent holes is one or more of circular or polygonal in shape.
8. A reversibly color-changing insulating heat-shrink according to claim 4, wherein the reversibly color-changing temperature range of said thermochromic material is divided into 3 to 6 display regions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011337944.XA CN112564030A (en) | 2020-11-25 | 2020-11-25 | Reversible color-changing insulating heat shrinkable sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011337944.XA CN112564030A (en) | 2020-11-25 | 2020-11-25 | Reversible color-changing insulating heat shrinkable sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112564030A true CN112564030A (en) | 2021-03-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011337944.XA Pending CN112564030A (en) | 2020-11-25 | 2020-11-25 | Reversible color-changing insulating heat shrinkable sleeve |
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| Country | Link |
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| CN (1) | CN112564030A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114122755A (en) * | 2021-11-24 | 2022-03-01 | 广东电网有限责任公司东莞供电局 | Can follow temperature and discolour joint insulating boot |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1776826A (en) * | 2005-11-17 | 2006-05-24 | 居学成 | Thermosensitive colour-changing insulated product |
| CN101817192A (en) * | 2010-03-31 | 2010-09-01 | 中国林业科学研究院木材工业研究所 | Temperature-sensitive reversible color wooden material and manufacturing method thereof |
| CN102103275A (en) * | 2009-12-18 | 2011-06-22 | 清华大学 | Thermochromatic element and thermochromatic display device |
| CN207677158U (en) * | 2017-12-26 | 2018-07-31 | 镒胜电子科技(昆山)有限公司 | A kind of heat-shrinkable T bush connection structure |
-
2020
- 2020-11-25 CN CN202011337944.XA patent/CN112564030A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1776826A (en) * | 2005-11-17 | 2006-05-24 | 居学成 | Thermosensitive colour-changing insulated product |
| CN102103275A (en) * | 2009-12-18 | 2011-06-22 | 清华大学 | Thermochromatic element and thermochromatic display device |
| CN101817192A (en) * | 2010-03-31 | 2010-09-01 | 中国林业科学研究院木材工业研究所 | Temperature-sensitive reversible color wooden material and manufacturing method thereof |
| CN207677158U (en) * | 2017-12-26 | 2018-07-31 | 镒胜电子科技(昆山)有限公司 | A kind of heat-shrinkable T bush connection structure |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114122755A (en) * | 2021-11-24 | 2022-03-01 | 广东电网有限责任公司东莞供电局 | Can follow temperature and discolour joint insulating boot |
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Application publication date: 20210326 |
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| RJ01 | Rejection of invention patent application after publication |