JPH08251760A - Unit cable connecting member - Google Patents

Abstract

PURPOSE: To simplify the structure by simultaneously sandwiching many cables and connecting members between two insulators made of platelike gel-like polymer for satisfying specific conditions to be pressed in a unit for arbitrarily connecting the many cables. CONSTITUTION: A connecting unit 1 connects the conductor connecting members 4 to 4n of the strands 3, 3a, ... of many cables 2 to 2n in an arbitrary wiring state. It is sandwiched between two platelike insulating members 5, pressed by a pressing plate 6a, and clamped by a clamper 7. The member 5 is formed of gel-like polymer under the conditions of an elongation percentage of 1000 to 2000%, modulus of repulsion elasticity of 10 to 30%, compression permanent distortion of 5 to 20% (JIS K 6301), harness of 0.1 to 30 (ASKER C hardness), thermal deformation temperature of -40 deg.C or lower and a specific weight of 0.8 to 0.9. Thus, the insulating action is preferably performed, and the inner state can be arbitrarily observed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a unit cable connecting member in which connecting portions for a large number of cables are integrally provided inside, and the unit cable connecting member is formed. At the same time, the present invention relates to a unit cable connecting member whose internal structure can be seen from the outside and which can be easily manufactured.

[0002]

2. Description of the Related Art A unit cable connecting member is often used for electrical wiring of a house or office, and wiring work such as indoors can be easily performed to improve the efficiency of electrical wiring work. Has been made possible. As the connection unit, for example, one as shown in FIG. 6 is used, and a large number of cables 11,
The conductor connecting members 13, 13a ... In the state where the element wires 12, 12a.
Are connected to each other to form the connection unit 10. The entire connecting portion including the tip of the cable is housed in the case member 15 to form one connecting unit, one of the cables is used as a power feeding cable, and each of the other cables is used as a load device. To be able to connect to. Further, the case member 15 is provided with a fixing hole 16 or the like so that the case member 15 can be easily fixed and held to a wall or other supporting members. Therefore, when the connection unit 10 having the above-described configuration is manufactured in a factory and wiring is performed in a room such as a house, a cable for a large number of load devices is connected to each other to easily construct a power supply path. It is supposed to be possible.

[0003]

However, in the connection unit as shown in FIG. 6, since the case member is integrally formed by using a resin material such as hard vinyl chloride, the connection unit is used. When a failure occurs in the power supply system, there is a problem that it is not possible to easily determine whether the failure is in the connection unit or another power supply line. Then, in the case of the above-mentioned failure, check the load device etc. connected to the individual power supply line, and after that,
When it is determined that the connection unit has a failure, it is necessary to replace the connection unit. Therefore, the conventional connection unit has many problems in maintenance.

In addition to the problems described above, the case member 1
When 5 is manufactured by integral molding of a resin material, the cost required for the mold for manufacturing thereof greatly affects the manufacturing cost of the connection unit. On the other hand, when the means for fixing and protecting the connecting portion is used by using the case member divided into two, a problem occurs in waterproofing the joint of the case member,
When used in a humid place, moisture enters the inside of the connection unit, and the connection performance of the conductor connection member also increases.
There is also a problem that a large influence is likely to occur.

[0005]

SUMMARY OF THE INVENTION The present invention solves the problems of the conventional connecting unit as described above. For a unit constructed by arbitrarily connecting a large number of cables, a large number of cables and connecting members are provided. By arranging them collectively between plate-shaped gel polymer insulators and pressing the insulators from the outside while sandwiching the cable, the structure of the connection unit can be simplified and the waterproof property is demonstrated. And a unit cable connecting member in which the gelled polymer used as an insulating member is made of a transparent or semitransparent material so that the connection state inside the unit can be seen from the outside. Is intended.

[0006]

According to the present invention, a large number of cables to be connected are connected by a conductor connecting member, the periphery of the connecting portion is protected by an insulating member, and an arbitrary number of cables are connected to the plurality of cables. The present invention relates to a unit cable connecting member configured to connect a load device. In the present invention,
A connecting member for connecting each of the plurality of cables and a tip portion of the cable are arranged so as to be sandwiched between two plate-like gel polymer-made insulators, and a pressing plate member is provided outside the insulators. And the plate member is pressed and fixed via a fixture to form one connection unit, and the gel polymer is formed of a member that satisfies the following conditions. That is, the insulator used in the present invention has an elongation of 1000 to 2000%, a repulsion elastic modulus of 10 to 30%, and a compression set of 5 to 20% (JISK63).
01), the hardness is 0.1 to 30 (Asker C hardness), the heat deformation temperature is −40 ° C. or less, and the specific gravity is 0.8 to 0.9.

Further, according to the present invention, it is possible to integrally provide a fixing member at a portion where the cable is exposed from the connection unit and fix each cable. Further, in the present invention, when a waterproof adhesive member is applied to the surface of a large number of cables accommodated in the connection unit and the plate-like member of gel polymer is pressed, the plate-like member and the cable interface are It is also possible to move the adhesive member applied to the surface of the cable into the gap between and to exert waterproofness.

[0008]

As described above, in the connection unit of the present invention,
Since the gel polymer is used as the insulating member, the insulator can be formed into a plate shape or a block shape having an arbitrary size, and can be easily adapted to the size of the connection unit or the like. . Since the gel polymer itself used in the present invention has a very large elastic modulus, two cable-shaped gel polymer insulators are used to sandwich the cable connecting portion from both sides. And the outer side of the cable is pressed by a pressing plate member made of a hard plate-like member, so that the insulator is brought into close contact with the periphery of the cable and the cable connection part, and water etc. does not get inside the connection unit. Can be sealed. In addition, when a waterproof adhesive material such as grease is applied to the interface of the cable and then pressed by an insulator using a gel polymer, the grease is pressed by the insulator and gathers in the gap. Therefore, it is possible to prevent a gap from being generated between the cable interface and the connecting portion of the insulator. Furthermore, if the insulator placed around the cable connection part is made transparent and the plate member for pressing and fixing from the outside is made of a semitransparent or transparent member, the inside condition of the cable connection part can be changed from the outside. It can be easily seen, and the occurrence of a failure can be confirmed by observing the internal state of the connection unit at any time.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The unit cable connecting member of the present invention will be described with reference to the illustrated example. The connection unit 1 shown in FIG. 1 is used for connecting wirings that form a power supply path in a room such as a house, as in the case of a conventional connection unit. 3, 3a ...
Are connected in an arbitrary wiring state via the conductor connecting members 4, 4a .... As the conductor connecting members 4, 4a ..., similar to the conventional conductor connecting member, means for exposing the conductor of the wire and inserting it into the conductor connecting member made of a conductor, and tightening and fixing it is used. Can be connected. In the inside of the connection unit 1, the conductor connecting member 4,
By arranging 4a ... in a straight line,
To enable the connecting action of each cable to the wire to be easily performed.

As described above, the conductor connecting members 4, 4
A plurality of cables 2, 2a ... Connected via a ... Is fixedly held by an insulating member 5 as shown in FIGS. The insulating member 5 uses plate-shaped insulators 5a and 5b made of a gel-like polymer. A conductor connecting member and a cable are respectively placed between the two plate-shaped insulators 5a and 5b. , The conductor connecting members 4, 4a ... And the cables 2, 2a.
3a ... is fixed by adding the action of compressing from both sides. As the pressing plate members 6 and 6a, for example, a hard and transparent member such as an acrylic plate member can be used,
By using the fixing members 7, 7a ... Arranged at the corners of the insulator, the pressing plate members 6, 6a are pressed in the direction of approaching.

By pressing the insulators 5a and 5b through the pressing plate members 6 and 6a as described above, the cables 2 and 2a are interposed between the two insulating plate members.
.. and the conductor connecting members 4, 4a .. Therefore, by using the pressing plate members 6 and 6a, the action of pressing the insulators 5a and 5b from both sides is added, and the gel-like polymer forming the insulator is formed according to the shapes of the respective members of the cable and the conductor connecting member. It is possible to fix and hold each of the conductor connecting member and the cable inside the connecting unit by preventing the plate member from deforming so that a gap is not formed between the conductor connecting member or the cable and the inner surface of the insulator. .

As described above, when the conductor connecting member is fixedly held between the two insulators made of gel-like polymer, there is a concern that a gap may be generated between the cable and the insulator. It is possible to perform the processing as shown in FIG. In the example shown in FIG. 3, when grease or the like is applied around the cable 2 and the insulators 5a and 5b are compressed via the pressing plate members 6 and 6a, the grease is squeezed out from the surface of the cable. It moves in the state of being filled, and the gap 9 is filled with grease. Therefore, even if a gap 9 is formed in the portion where the two insulators are overlapped with each other around the cable, the gap is filled with grease, so that the conductor connecting member inside the connection unit is filled. It can also be made waterproof.

The gel polymer used in the present invention for forming the insulating portion may be, for example, "Cosmogel" (trade name) sold by Cosmo Keiki Co., Ltd. The gel polymer may be a polyethylene-based gel polymer. On the contrary,
In the present invention, any gel polymer can be used in addition to the polyethylene gel polymer, and preferably, a styrene-ethylene gel polymer is used. Further, as the gel polymer of the present invention, it is possible to use other polymers having the above-mentioned requirements. Furthermore, in the connection unit of the present invention, the gel polymer used as the insulator may be made of a material having the following properties. Elongation rate 1000 to 2000% Rebound modulus 10 to 30% Compression set 5 to 20% (according to JIS K6301) Hardness 0.1 to 30 (Asker C hardness) Heat deformation temperature -40 ° C or less Specific gravity 0.8 to 0.9 .

In the above numerical range, the elongation is 1000
% Or less than 30 or more, the flexibility of the gel polymer decreases, and when the connection part is covered with the gel polymer, the adhesiveness between the two decreases. appear. Also, the impact resilience is 10
%, The surface pressure applied to the cable connecting portion by the gel-like polymer plate member decreases, and voids are likely to occur at the joint surface between the conductor connecting portion and the covering member, which is not preferable. Further, if the compression set exceeds 20%, it causes a decrease in surface pressure as well, and when the conductor connection part is affected by heat cycle, the shape following property deteriorates, and the joint surface is deteriorated. In addition, there is a drawback that voids are more likely to occur.

The elongation percentage of the gel polymer is 2000.
%, The impact resilience is 30% or more, the compression set is 5% or less, or the hardness is 0.1 or less, no particular problem occurs in the joint surface between the conductor connecting portion and the covering member. However, the flexibility of the gel-like polymer is too large, which causes inconveniences such as poor handleability and poor formation of ears of shape. Therefore, it is necessary to be within the above numerical range. In addition, the heat distortion temperature of the gel polymer is −
When the temperature is 40 ° C. or higher, the polymer is cured when the present invention is applied in a cold region or the like, and the basic properties of the gel polymer of the present invention such as shape-following property and adhesion are impaired, which is preferable. Absent. Furthermore, it is preferable to select a gel polymer of the present invention having a specific gravity of 0.8 to 0.9. The gel polymer in the specific gravity range often satisfies the above-mentioned elongation rate, impact resilience, compression set and hardness at the same time. Among them, the styrene-ethylene gel polymer is particularly preferable because it sufficiently satisfies the above characteristics.

The gel-like polymer has a property close to colorless and transparent in a non-colored state, but a lightly colored semi-transparent plate-like member can be formed by adding an arbitrary pigment. . Further, when the gel polymer is configured to have transparency, it is possible to directly see the internal structure of the conductor connecting portion, and therefore, for example, when an accident or the like occurs at the connecting portion, the degree of the obstacle. Can be seen from the outside. In addition, since the conductor connection part using the insulating material as described above can ensure the waterproofness of the connection part, it is possible to prevent water from entering the inside of the connection part and ensure the durability of the connection part. It is possible to

By comparing the above-mentioned cable connection portion with an insulating layer made of a gel polymer having high elasticity and strength, a conventional insulating coating using vinyl chloride or the like is provided. Thus, it is possible to improve the protection performance of the cable connection portion. Then, when configuring the connection unit of the present invention, in a state where the cable and the conductor connection member, etc. are arranged side by side, an insulator is arranged on the front and back surfaces thereof, and further, a pressing plate member is arranged on the outside thereof, and then fixed. Since it only adds the action of tightening using the member,
When manufacturing the connection unit, it is not necessary to provide special equipment, and the connection unit can be easily manufactured. Therefore, when manufacturing the connection unit of the present invention, it is possible to easily manufacture the connection unit including any number of cables in any size.

As the gel polymer as the insulating material used in the cable of the present invention, a gel polymer mainly composed of polyethylene can be used. Besides, it is also possible to use a mixture of polyethylene and styrene with paraffinic oil,
Since the gel-like polymer is in a state in which long molecules are entangled with each other without being cross-linked, it is a material that can be configured in an arbitrary shape.

The example shown in FIG. 4 corresponds to a case where a cable is applied with a fixing plate member such as a pressing plate member in the case where it is feared that a force in the pulling direction is applied to the cable when the connection unit is constructed. An example in which a fixing member 8 for holding is additionally provided is shown. As a means for fixing the end portion of the cable to the main body of the connection unit 1a, for example, fixing using an epoxy resin,
A means may be used in which a block-shaped rubber or the like is arranged and the block member is fixed and held at the same time when the insulator is tightened by the pressing plate member. Furthermore, the cable can be fixed to the insulator by using an adhesive capable of exhibiting adhesiveness to both the insulator and the insulator covering the conductor of the cable, and a pulling action can be applied to any cable. Even in the applied state, the cable can be fixed and protected so as not to come out of the connection unit. Further, in the connection unit 1a shown in FIG. 4, the arrangement relationship between the cable and the conductor connecting member is configured in the same manner as in FIG. 1, and the insulating member is composed of two insulators, and A means for pressing the insulating member using the arranged pressing plate member is also configured in the same manner as in the case of FIGS.

In the present invention, in addition to the method of arranging the conductor connecting members so as to form one layer and arranging the insulating members above and below and compressing from above and below, as shown in FIG. It is possible to collectively configure the connection unit 1b by configuring the connection portions in two layers. In the connection unit 1b, as shown in FIG. 1, conductor connecting portions to which a large number of cables are respectively connected are arranged in two layers, and layers 4A and 4B of conductor connecting members are arranged in parallel. The insulating members 5a, 5b and 5 respectively.
It is protected by pressing from above and below by c and 5d.
The insulating member uses a plate-shaped insulator made of a gel polymer, and includes two plate-shaped insulators 5a,
A large number of conductor connecting members and cables are respectively positioned between 5b and arranged in layers.

In the connection unit 1b, the pressing plate members 6 and 6a are arranged on both upper and lower surfaces, and the pressing plate member 6b is also arranged between the insulating members 5b and 5c. Then, the three plate members are pierced and fixed by using fixing members 7 and 7a such as bolts, and the conductor connecting member, the cable, and the wire are compressed by the action of compressing from both sides. The pressing plate members 6, 6a, 6
As b, for example, a hard and transparent member such as an acrylic plate member can be used. As described above, the insulating member 5a is formed by using the pressing plate members 6, 6a and 6b.
Adding the action of pressing ~ 5d from both sides, two layers 4A,
The plate member of the gel-like polymer forming the insulator is deformed according to the shape of each member of the 4B cable and the conductor connecting member. Therefore, it is possible to fix and hold each of the conductor connecting member and the cable inside the connection unit by preventing a gap from being formed between the conductor connecting member or the cable and the inner surface of the insulator.

As described above, in the connection unit of the present invention, the gel polymer is used as the insulator, and the insulator is insulated from the cable connection portion by pressing and fixing the insulator by applying uniform pressure from the outside. It is possible to exhibit the excellent properties. In addition to the above configuration, if both the insulator used for the connection unit and the pressing plate member are configured as transparent members, the state of the conductor connection member and each wiring can be easily seen from the outside of the connection unit. Further, in the connection unit, the insulator and the pressing plate member located on the back surface of the conductor connecting member and the like are made of opaque members, and the insulator and the pressing plate member located on the front surface side of the conductor connecting member are transparent members. Can be composed of Therefore, when the front surface side of the connection unit is configured to be transparent, the front and back surfaces of the connection unit can be accurately distinguished, and therefore the handling of indoor wiring can be performed easily. it can.

[0023]

As described above, in the connection unit of the present invention, since the gel polymer is used as the insulating member, the pressing plate member should be formed in a plate shape or a block shape of an arbitrary size. Therefore, the size of the connection unit can be easily adapted. Since the gel polymer itself used in the present invention has a very large elastic modulus, two cable-shaped gel polymer insulators are used to sandwich the cable connecting portion from both sides. And the outer side of the cable is pressed by a pressing plate member made of a hard plate-like member, so that the insulator is brought into close contact with the periphery of the cable and the cable connection part, and water etc. does not get inside the connection unit. Can be sealed. In addition, when a waterproof adhesive material such as grease is applied to the interface of the cable and then pressed by an insulator using a gel polymer, the grease is pressed by the insulator and gathers in the gap. Therefore, it is possible to prevent a gap from being generated in the connecting portion of the insulator at the cable interface. Furthermore, in the present invention, it is possible to configure the insulator arranged around the cable connecting portion as a transparent one, and to configure the plate member for pressing and fixing from the outside with a semitransparent or transparent member, With such a configuration, the internal condition of the cable connecting portion can be easily seen from the outside, and the internal condition of the connecting unit can be observed at any time to confirm the occurrence of a failure or the like.

[Brief description of drawings]

FIG. 1 is an explanatory diagram showing a configuration of a connection unit of the present invention.

FIG. 2 is a side view of the connection unit of FIG.

FIG. 3 is an explanatory diagram of another embodiment of the present invention.

FIG. 4 is an explanatory diagram of an example in which a cable fixing unit is provided.

FIG. 5 is an explanatory diagram of another embodiment of the present invention.

FIG. 6 is an explanatory diagram showing a configuration of a conventional connection unit.

[Explanation of symbols]

1/10 connection unit, 2/11 cable,
4 ・ 13 Conductor connection member, 5 Insulation member, 6
Pressing plate member, 7 fixing member, 15 case member.

Claims (3)

[Claims] 1. A plurality of cables to be connected are connected by a conductor connecting member, the periphery of the connecting portion is protected by an insulating member, and an arbitrary load device can be connected to the plurality of cables. In the connection unit, the connection member for connecting each of the plurality of cables and the distal end portion of the cable are arranged so as to be sandwiched between the insulators composed of two plate-like gel polymer plate members,
A pressing plate member is arranged outside the insulator, and the plate member is pressed and fixed via a fixture to form one connection unit, and the gel polymer is formed of a member that satisfies the following conditions. A unit cable connecting member characterized by being. Notation Elongation rate 1000 to 2000% Rebound elastic modulus 10 to 30% Compression set 5 to 20% (according to JIS K6301) Hardness 0.1 to 30 (Asker C hardness) Heat distortion temperature -40 ° C or less 2. The unit cable connecting member according to claim 1, wherein a fixing member is integrally provided at a portion where the cable is exposed from the connection unit, and each cable is fixed. 3. An adhesive member having waterproofness is applied to the surfaces of a large number of cables housed in the connection unit, and when the gel-like polymer plate-like member is pressed, the plate-like member and the cable interface are formed. The unit cable connecting member according to claim 1 or 2, wherein the gap is closed by an adhesive member applied to the surface of the cable to exhibit waterproofness.