KR20170027460A - Heat shrinkable sheet and heat shrinkable tube - Google Patents

Heat shrinkable sheet and heat shrinkable tube Download PDF

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Publication number
KR20170027460A
KR20170027460A KR1020150124093A KR20150124093A KR20170027460A KR 20170027460 A KR20170027460 A KR 20170027460A KR 1020150124093 A KR1020150124093 A KR 1020150124093A KR 20150124093 A KR20150124093 A KR 20150124093A KR 20170027460 A KR20170027460 A KR 20170027460A
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KR
South Korea
Prior art keywords
heat shrinkable
heat
shrinkable tube
shielding member
noise
Prior art date
Application number
KR1020150124093A
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Korean (ko)
Other versions
KR101754885B1 (en
Inventor
문종호
홍승인
Original Assignee
주식회사 유라코퍼레이션
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Priority to KR1020150124093A priority Critical patent/KR101754885B1/en
Publication of KR20170027460A publication Critical patent/KR20170027460A/en
Application granted granted Critical
Publication of KR101754885B1 publication Critical patent/KR101754885B1/en

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B17/00—Insulators or insulating bodies characterised by their form
    • H01B17/56—Insulating bodies
    • H01B17/58—Tubes, sleeves, beads, or bobbins through which the conductor passes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B17/00—Insulators or insulating bodies characterised by their form
    • H01B17/56—Insulating bodies
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
    • H01B7/28—Protection against damage caused by moisture, corrosion, chemical attack or weather
    • H01B7/282—Preventing penetration of fluid, e.g. water or humidity, into conductor or cable
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B9/00—Power cables
    • H01B9/02—Power cables with screens or conductive layers, e.g. for avoiding large potential gradients

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  • Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)

Abstract

A heat shrinkable sheet, comprising: a through hole having the same shape in which a plurality of heat shrinkable sheets are dispersed at equal intervals; And a noise blocking member for respectively filling the through holes, wherein the noise blocking member provides a heat shrinkable sheet having different areas of one surface and the other surface.

Description

HEAT SHRINKABLE SHEET AND HEAT SHRINKABLE TUBE [0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat shrinkable sheet and a heat shrinkable tube, and more particularly to a heat shrinkable sheet and a heat shrinkable tube used for terminals of various types of electric unit mounted on an automobile.

A heat shrinkable tube is a tube having properties of shrinking in the radial direction or the longitudinal direction when cured after heating, and is mainly used for covering water or sealing water of various terminal portions to waterproof or insulate. The heat-shrinkable sheet has the same characteristics as the heat-shrinkable tube but is similar in shape to the heat-shrinkable tube. Thereby, the heat-shrinkable sheet has a purpose for sealing a wider area.

BACKGROUND ART [0002] Recently, various kinds of units mounted in automobiles are usually driven electronically, so that wires are connected to each other in a complex manner. At this time, electric wires serve as intermediaries for transporting electric power and for exchanging electrical signals.

However, due to the continuous electronicization of each type of unit, for example, the introduction of a new engine driving system such as a hybrid car, a high voltage is used in the automobile and accordingly a high voltage current flows on the inner or outer surface of the electric wire. As a result, high frequency and low frequency noise are frequently generated in the electric wires and the like, which causes a communication failure or malfunction between the various units.

Korean Registered Patent No. 10-0947707 (Registered on Mar. 3, 2010)

SUMMARY OF THE INVENTION The present invention provides a heat shrinkable sheet and a heat shrinkable tube having a noise barrier function.

Further, the noise blocking function is uniformly provided so that the same effect can be exerted at any position of the seat and the tube, and as a result, the reliability of the electric unit is improved and at the same time, the stability of the automobile is ensured.

It is another object of the present invention to reduce noise by simply using a thermally shrinkable tube or the like conventionally used in a portion thereof without using an adhesive means including a separate adhesive or the like.

In order to solve the above problems, an embodiment of the present invention provides a heat-shrinkable sheet, comprising: a through hole having the same shape in which a plurality of heat shrinkable sheets are dispersed at equal intervals; And a noise blocking member for respectively filling the through holes, wherein the noise blocking member provides a heat shrinkable sheet having different areas of one surface and the other surface.

It is preferable that the noise shielding member is formed in a trapezoidal column shape of ferrite material.

A through hole having the same shape in which a plurality of heat shrinkable tubes are dispersed and arranged at equal intervals; And a noise shielding member for filling the through holes, respectively, wherein the noise shielding member is smaller than an area exposed to the inside of the heat shrinkable tube than an area exposed to the outside.

The noise blocking member may be formed in a trapezoidal column shape of ferrite material. And the through hole is formed so that the trapezoidal columnar shape is formed in the longitudinal direction of the heat shrinkable tube.

As described above, according to the present invention, various effects including the following can be expected. However, the present invention does not necessarily achieve the following effects.

It is possible to provide a heat shrinkable sheet and a heat shrinkable tube having a noise shielding function. Further, the noise shielding function is uniformly provided so that the same effect can be exerted at any position of the seat and the tube. As a result, the reliability of the electric unit can be improved and the stability of the vehicle can be ensured.

In addition, noise can be reduced only by using a conventionally used heat shrinkable tube or the like at the site without using an adhesive means including a separate adhesive or the like on the terminal.

1 is a plan view of a heat shrinkable sheet according to an embodiment of the present invention.
Fig. 2 is a longitudinal sectional view taken along the line A in Fig.
3 is a perspective view of the noise-
4 is a perspective view of a heat shrinkable tube according to an embodiment of the present invention.
Fig. 5 is a longitudinal sectional view of Fig.

Hereinafter, specific embodiments of the present invention will be described in detail with reference to the drawings. Fig. 1 is a plan view of a heat shrinkable sheet 100 according to an embodiment of the present invention, Fig. 2 is a longitudinal sectional view of part A of Fig. 1, and Fig. 3 is a perspective view of a noise shielding member 20. Fig.

1 to 3, a heat shrinkable sheet 100 according to an embodiment of the present invention includes a through hole 10 formed in a heat shrinkable sheet 100 and a noise shielding member 20. The heat shrinkable sheet 100 has a predetermined thickness in the form of a thin plate made of rubber or plastic. Specific plastic materials include PVC and polypropylene.

On the other hand, a plurality of through holes 10 formed in the heat shrinkable sheet 100 are dispersed and arranged at equal intervals, and each through hole 10 has the same shape. Particularly, the through holes 10 are formed so as to pass through the sheet surface perpendicularly. Since the through holes 10 are repeatedly arranged in the same direction, the heat-shrinkable sheet 100 is formed so as to have a certain pattern as a whole .

However, the through hole 10 may be formed in a different form from the planar lattice pattern shown in FIG. 1, depending on design changes and the like. Even so, it is preferable that the through hole 10 is formed to exhibit a certain pattern. This is so that the noise shielding effect can be uniformly exerted at any position of the heat shrinkable sheet 100.

Next, the noise blocking member 20 fills each through hole 10. That is, each of the plurality of through holes 10 may be filled with the noise shielding member 20. At this time, the noise shielding member 20 according to one embodiment may be embodied as each divided piece generated when the ferrite sheet including the ferrite is divided. That is, the noise shielding member 20 has a ferrite sheet as a raw fabric.

Ferrite is a solid solution in which alloying elements or impurities are dissolved in iron of the body-centered cubic crystal stable at 900 ° C or lower, and is produced as an electromagnetic wave absorber through sintering. The ferrite is a single phase when viewed under a microscope, and a mixture of a white part of ferrite and a darker part of pearlite appear. The ferrite sheet including the ferrite of such characteristics has a thin plate shape and has electromagnetic wave shielding function, and its shape is not easily deformed even when heated.

The heat shrinkable sheet 100 can simultaneously provide a waterproof function as a result of the disappearance of the void space exposed through both surfaces when the through hole 10 is filled with the noise shielding member 20. [

At this time, the noise shielding member 20 exposed through the heat shrinkable sheet 100 has different areas of one surface and the other surface. For this purpose, the noise shielding member 20 may be formed in a trapezoidal column shape, for example, as shown in Fig. However, the noise shielding members 20 are disposed such that both opposite sides thereof are exposed through the through holes 10 of the heat shrinkable sheet 100, respectively.

As described above, since the through hole 10 has a certain pattern, when the noise shielding member 20 is filled with the through holes 10, a pattern of the noise shielding member 20 exposed to the heat shrinkable sheet 100 is formed .

In particular, the heat shrinkable sheet 100 can be used in a relatively wide and flat place where it is difficult to be airtight in the form of a tube. At this time, it is preferable that a side surface of the noise shielding member 20, which covers the object, has a smaller side surface area. This is because the heat shrinkable sheet 100 must be able to cover the object when it is shrunk by heating under the condition that the object is covered.

In other words, even if heat is applied to the noise shielding member 20, the shape of the noise shielding member 20 remains unchanged. On the other hand, the heat shrinkable sheet 100 is contracted while bending and curving toward the smaller area exposed by the through-hole and the noise blocking member 20 arranged and exposed asymmetrically through the one surface and the other surface.

Alternatively, according to another embodiment, the noise shielding member 20 may be fabricated directly using ferrite powder rather than a ferrite sheet fabric. At this time, the noise shielding member 20 is formed directly by mixing the finely processed ferrite powder with general synthetic resin or the like. That is, the mixed ferrite powder and the synthetic resin can be formed into a trapezoidal column shape by extrusion or injection molding.

As described above, by using the heat shrinkable sheet 100 according to one embodiment, it is possible to provide a noise reduction function simply and quickly without using a separate adhesive means or a joining member.

FIG. 4 is a perspective view of a heat shrinkable tube 200 according to an embodiment of the present invention, and FIG. 5 is a longitudinal sectional view of FIG. 4 and 5, a heat shrinkable tube 200 according to an embodiment of the present invention includes a through hole 10 and a noise blocking member 20 formed in a heat shrinkable tube 200.

The heat-shrinkable tube 200 can be manufactured by rolling the heat-shrinkable sheet 100 described above. At this time, the size, such as the diameter of the tube, can be variously changed in consideration of the heat shrinkage rate of the heat shrinkable tube 200. The heat-shrinkable tube 200 can provide airtightness, insulation, etc. between two members having different shapes or sizes, particularly at ends of terminals or the like.

In this heat shrinkable tube 200, a plurality of holes 10 of the same shape are formed so as to be dispersed at equal intervals. In addition, the heat-shrinkable tube 200 includes a noise shielding member 20 for filling the through holes 10, respectively. The same reference numerals are given to the heat shrinkable sheet 100 described above, and the same reference numerals are given to the heat shrinkable sheet 100, and a detailed description of the overlapping portions will be omitted.

 However, it is preferable that the noise shielding member 20 is arranged so that the area exposed to the inside of the heat shrinkable tube 200 is smaller than the area exposed to the outside. Specifically, the noise shielding member 20 having a trapezoidal columnar shape is disposed in the longitudinal direction of the heat shrinkable tube 200 on both opposite sides. However, the noise shielding member 20 is not necessarily limited to this, and may be changed by a design change or the like. For example, a triangular prism shape or the like.

As described above, the noise shielding member 20 is retained without deforming its shape even when heated. On the other hand, when the heat shrinkable tube 200 made of plastic is shrunk, it must be uniformly contracted while tightly covering an object such as a terminal disposed therein, and tightly coupled to an object. Therefore, it is preferable that the noise shielding member 20 is disposed such that the area exposed to the inside of the heat shrinkable tube 200 is smaller.

The through hole 10 is formed in a predetermined pattern repeated in the heat shrinkable tube 200 and is irrelevant to the shape of the heat shrinkable tube 200 if the heat shrinkable tube 200 can provide its inherent air tightness and insulation. However, it is preferable that the through hole 10 according to one embodiment is formed in a trapezoidal column shape corresponding to the noise shielding member 20.

Concretely, it is preferable that the through hole 10 has an arrangement in which a trapezoidal columnar shape is formed in the longitudinal direction of the heat shrinkable tube 200. That is, the cross section of the through hole 10 becomes trapezoidal. At this time, opposed parallel side openings are exposed through the inner circumferential surface and the outer circumferential surface of the heat shrinkable tube 200, respectively.

As a result, the heat-shrinkable tube 200 is uniformly circularly shrunk in the radial direction inside by the trapezoid-shaped through-hole 10, and its radius can be reduced. However, since its vertical cross- The length is reduced only. That is, the heat-shrinkable tube 200 is not bent in any one direction.

This is because the through hole 10 and the noise shielding member 20 are differentially formed and arranged in the heat shrinkable tube 200, unlike the prior art. As described above, the heat-shrinkable tube having the noise-shielding function can improve the operational reliability for each electric unit in the vehicle and at the same time ensure the running stability.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the invention.

10: through hole 20: noise blocking member
100: Heat shrinkable sheet 200: Heat shrinkable tube

Claims (5)

In the heat shrinkable sheet,
A through hole having the same shape in which a plurality of heat shrinkable sheets are dispersed and arranged at equal intervals; And
And a noise blocking member that fills each of the through holes,
Wherein the noise shielding member has an area of one surface different from that of the other surface.
The method according to claim 1,
Wherein the noise shielding member is formed in a trapezoidal column shape of a ferrite material.
In the heat-shrinkable tube,
A through hole having the same shape in which a plurality of heat shrinkable tubes are dispersed and arranged at equal intervals; And
And a noise blocking member that fills each of the through holes,
Wherein the noise shielding member is smaller than an area exposed to the inside of the heat shrinkable tube than an area exposed to the outside.
The method of claim 3,
Wherein the noise shielding member is formed in a trapezoidal column shape of ferrite material.
5. The method of claim 4,
Wherein the through hole is formed such that the trapezoidal columnar shape is raised in the longitudinal direction of the heat shrinkable tube.
KR1020150124093A 2015-09-02 2015-09-02 Heat shrinkable sheet and heat shrinkable tube KR101754885B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020150124093A KR101754885B1 (en) 2015-09-02 2015-09-02 Heat shrinkable sheet and heat shrinkable tube

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020150124093A KR101754885B1 (en) 2015-09-02 2015-09-02 Heat shrinkable sheet and heat shrinkable tube

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KR20170027460A true KR20170027460A (en) 2017-03-10
KR101754885B1 KR101754885B1 (en) 2017-07-06

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Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100947707B1 (en) 2008-04-18 2010-03-16 엘에스전선 주식회사 Composition for heat-shrink tubing with high strength and resistance against heat and oil and heat-shrink tubing using the same

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001347566A (en) 2000-06-06 2001-12-18 Tokin Corp Heat-shrinkable tube, heat-shrinkable sheet and method for shrinkage thereof
JP4663402B2 (en) * 2005-05-23 2011-04-06 アジア原紙株式会社 Porous film and method for producing the same

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100947707B1 (en) 2008-04-18 2010-03-16 엘에스전선 주식회사 Composition for heat-shrink tubing with high strength and resistance against heat and oil and heat-shrink tubing using the same

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