JPS6033529Y2 - flat flexible cable - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to a flat flexible cable.

Conventionally, a flexible grounding cable has a structure in which a flexible insulating material layer 3 is integrally formed around a flexible conducting wire 1, leaving both ends 2a and 2b, as shown in FIG. have been proposed.

The flexible grounding cable shown in FIG. to the point to be grounded, with or without a connector 4a as shown by the chain line, and the other end 2b to the ground conductor with or without a connector 4b as shown in the chain line. In this case, the flexible conductor 1 and the flexible insulation layer 3 are literally visible, so that the grounding flexible The cable is flexible and can be bent, so even if there are obstacles such as heat sources, parts, etc. between the point to be grounded and the ground conductor, by bending the flexible grounding cable, The flexible grounding cable may be extended between the points to be grounded and the grounding conductor, avoiding obstacles, and in this case, the flexible grounding cable may come into contact with parts etc. that it should not come into contact with. However, since the insulating material layer 3 is formed around the flexible conductive wire 1, there is no problem and it is therefore convenient to use.

However, in the case of the conventional flexible grounding cable shown in FIG. 1, if the flexible conductor 1 has a large cross-sectional area,
Due to its low inductance and resistance, it has low inductance and resistance as a flexible grounding cable, so it can also be used for high frequency grounding, and therefore there are no inconveniences in its use. However, if the flexible conductor 1 has a large cross-sectional area, its flexibility will be poor as a result of its poor flexibility as a flexible grounding cable, and therefore the flexibility will be poor. If the flexible conductor 1 has a small cross-sectional area, its flexibility makes it inconvenient to use as a flexible grounding cable. However, if the flexible conductor 1 has a small cross-sectional area, its large inductance and resistance will make it difficult to ground. As a flexible cable, the inductance and resistance are large, so it can be applied to high frequency grounding, and therefore it is inconvenient to use in terms of application.

Therefore, the conventional flexible grounding cable shown in FIG. 1 has the disadvantage of being inconvenient to use due to its flexibility or being inconvenient to use in terms of application.

In the case of the conventional flexible grounding cable shown in FIG. 1, as described above, the manner in which both ends of the flexible grounding cable are electromechanically connected to the point to be grounded and the grounding conductor, respectively, is as follows. However, it has a point to be grounded and another part to be grounded between the grounding conductor, and a flexible grounding cable is connected to the part to be grounded by its extension. If it is necessary to use the flexible insulating material layer 3 in an electromechanical connection mode at an intermediate point, a portion of the flexible insulating material layer 3 is peeled off or cut off from the flexible conductive wire 1 during its extension. Therefore, it is necessary to electromechanically connect the flexible conductor 1 to the part to be grounded through the part to be peeled off or cut, and for this reason, the flexible grounding cable is grounded at the point in its extension. It has the disadvantage that it is inconvenient to use because it is electromechanically connected to the desired part.

Furthermore, as shown in FIG. 2, a flexible braided conductive wire 5 made of a thin conductive wire is inserted into a flexible insulating tube 7 with both ends 6a and 6b left open. Cables have also been proposed.

The flexible grounding cable, which is cut off at some point, should be extended between the point to be grounded and the grounding conductor, as in the case of the flexible grounding cable described above in Figure 1, and its possible Either one of the ends 6a and 6b of the flexible braided conductive wire 5, for example, 6
A is electromechanically connected to a point to be grounded through or without a connecting device 8a as shown in chain lines, and the other end 6 is connected to a point to be grounded.
b is used in an electromechanical manner to connect it to the ground conductor through or without a connector 8b as shown by the chain line, and in this case, the flexible braided conductor 5 and the flexible Since the insulating tube 7 is literally flexible, the flexible grounding cable is flexible and can be bent, so even if there is an obstacle between the point to be grounded and the grounding conductor. , by bending the flexible grounding cable as in the case of the conventional flexible grounding cable described above in FIG. The flexible braided conductor 5 is inserted into the insulated tube 7 even if it can be extended between the grounding conductor and the grounding conductor, and in this case, even if the flexible grounding cable comes into contact with parts etc. that should not come into contact with it. Therefore, there is no problem and it is convenient to use.

However, in the case of the conventional flexible grounding cable shown in FIG. The inductance and resistance as a flexible grounding cable are small, and therefore it can be applied to high-frequency grounding, so there is no inconvenience in using it, and the flexible braided conductor 5 Even if it has a large thickness,
Since it is a braided body, its flexibility is not bad, so its flexibility as a flexible grounding cable is not bad, and therefore it does not cause any inconvenience in its use in terms of flexibility. If the flexible braided conductive wire 5 has a large thickness, it is made of a braided body and is obtained at a high cost, so that a flexible grounding cable cannot be provided at a low cost.

In the case of the conventional flexible grounding cable shown in FIG. 2, as described above, the manner in which both ends of the flexible grounding cable are electromechanically connected to the point to be grounded and the grounding conductor, respectively, is as follows. However, in the same way as described above for the conventional flexible grounding cable shown in FIG.
It has a point to be grounded and another part to be grounded between the grounding conductor, and a flexible grounding cable is electromechanically connected to the part to be grounded at its extension point. If it is necessary to use the insulating tube 7 in a manner that Therefore, as in the case of the conventional flexible grounding cable described above in FIG. It has the disadvantage that it is inconvenient to use because it has to be electromechanically connected to the part to be connected.

Therefore, the present invention aims to provide a novel flat flexible cable free of the above-mentioned drawbacks, as will become clear from the detailed description below.

Figures 3 and 4 show an example of a flat flexible cable according to the present invention, with a plurality of N flexible conductors W1 to WN (however, the case where N = 4 is shown in the figure). are buried in a flat visible support material 11 in a juxtaposed manner, and in this case, the flexible support material 11 is composed of support material halves 12a and 12b in the thickness direction when viewed from a cut surface. The supporting member half 12a is connected to the flexible conductive wires W, -WN and has conductivity, and the supporting member half 12b is insulating.

In practice, such a configuration consists of juxtaposing a conductive sheet made of a synthetic resin material to which a conductive material is added and an insulating sheet made of a synthetic resin material to which substantially no conductive material is added. It can be constructed by sandwiching and thermocompression bonding a plurality of flexible conductive wires W1 to WN.

The above is an example of the configuration of the flat flexible cable according to the present invention. According to this configuration, it is extended between the point to be grounded and the ground conductor, and the plurality of flexible conductors W1 Either one of the ends a□~aN and ~bN of ~WN, for example, a□~aN, is connected to the point where it should be grounded via a multi-connector 13a as shown by the chain line, or by connecting the bag and ~aN to each other. (not shown) or electromechanically connect one of the terminals to the point to be grounded, with or without a coupling (not shown). and connect the other 91 to bN to the ground conductor via a multi-connector 13b as shown by the chain line, or connect the ends b□ to bN to each other (not shown) electromechanically, or Alternatively, one of the other ends b1 to bN may be electromechanically connected to a point to be grounded to a ground conductor through or without a connector (not shown). However, in this case, since the flexible conductors W□ to WN and the flexible support material 11 are literally flexible, the flat flexible cable is flexible and can be bent. Therefore, the first
As in the case of the conventional flexible grounding cable described above in FIGS. Even if there is Even if the flexible cable comes into contact with parts that should not come into contact with it, in this case, the side of the supporting member half 12b having insulating properties that constitutes the flexible supporting member 11 should be in contact with the flexible grounding cable. If it is a part that should not be used, there will be no problem and it will be convenient to use.

In addition, in the case of the flat flexible cable according to the present invention as shown in FIGS. 3 and 4, the flexible conductor 1 in the conventional flexible grounding cable shown in FIG. Although flexible conducting wires W1 to WN are used, the flexible conducting wires W1 to WN are used.
Since N is a plurality of N wires and they are electrically connected by the conductive supporting member half 2a, the flexible conductive wires W□ to WN have a small cross-sectional area. Also, the self-inductance and resistance as a flexible grounding cable are small, and therefore, it can also be applied to high frequency grounding, and therefore, there is no inconvenience in use in terms of application, and the flexible conductor W1 If ~WN has a small cross-sectional area, the flexible conductor W, ~WN has good flexibility, so it has good flexibility as a flexible grounding cable, and therefore has good flexibility as a flexible grounding cable. It is characterized in that it does not cause any inconvenience in use.

Furthermore, in the case of the flat flexible cable according to the present invention shown in FIGS. 3 and 4, the flexible conductors W□ to WN are different from those in the conventional flexible grounding cable shown in FIG. It is not made of a braided conductor like the flexible braided conductor 5, but is an ordinary conductor and may have a small thickness, so it cannot be obtained at a high price and can therefore be flattened. It has the feature that a flexible cable can be provided at a low cost.

Furthermore, in the case of the flat flexible cable according to the present invention as shown in FIGS. 3 and 4, both ends of the flat flexible cable are electromechanically connected to the point to be grounded and the ground conductor, respectively, as described above. Although it can be used in a connected manner, the point to be grounded and the distance between the grounding conductors are similar to those described above for the conventional flexible grounding cable shown in FIGS. 1 and 2. It is necessary to use a method in which the cable has another part to be grounded, and the flat visible cable is electromechanically connected to the part to be grounded at the midway point of its extension. In this case, since the flexible support member 11 is configured to have a conductive support member half 12a, the length of the support member half 12a to be brought into pressure contact with the part to be grounded is good;
Then, as in the case of the conventional flexible grounding cable shown in FIG. It is not necessary to cut or interrupt the insulating tube 7 as in the case of the grounding flexible cable, and therefore the flat flexible cable can be electromechanically connected to the part to be grounded during its extension. It has the characteristics of being convenient to use in terms of the number of applications.

[Brief explanation of drawings]

FIGS. 1 and 2 are perspective views showing conventional flexible grounding cables, and FIGS. 3 and 4 are perspective views showing an example of the flat flexible cable according to the present invention. and a sectional view thereof. In the figure, W1 to WN are flexible conductive wires, 11 is a flexible support material, 1
2a and 12b are support material halves, a□ to aN and b'x
” b N indicates each end.

Claims (1)

[Scope of utility model registration request] A plurality of flexible conductive wires are buried in a flat flexible supporting material in a juxtaposed manner, and the flexible supporting material is the first and second supporting material in the thickness direction when viewed from the cut surface. The first support half is connected to the plurality of flexible conductive wires and has conductivity, and the second support half has insulation. A flat flexible cable.