JP2011049112A - Wiring cover for electrical wiring connection and electrical product - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a wiring cover for electrical wiring connection which is constituted simply but has a function of keeping an electrical wiring connection part safe and an additional function and an electrical product. <P>SOLUTION: The wiring cover 1 is of a simple constitute formed by connecting a first cylinder 9 and a second cylinder 10 to each other both formed of incombustible materials via a connecting portion 50. At the connecting portion 50, one end opening of the first cylinder 9 is made to face one end opening of the second cylinder 10 and both cylinders 9 and 10 are energized in a linear direction. When the folded wiring cover 1 is inserted in a gap Y of the electrical product 20, the wiring cover 1 is unfolded due to the action of returning to its original state, thus causing the first and second cylinders 9 and 10 to be pushed against a pair of walls 21 demarcating the gap Y in the electrical product 20. By this, the wiring cover 1 has the additional function of fixing the wiring cover 1 itself to the electrical product 20. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a wiring cover for covering an electrical wiring connection portion and improving the safety of the electrical wiring connection portion, and an electric product having the wiring cover and the electrical wiring connection portion.

A general electric product includes an electric component. If the electric component is ignited by overheating, it may spread to surrounding components.
Therefore, in the rotary cooking appliance described in Patent Document 1, the main body control board, which is an electrical component, is covered with a flameproof sheet having nonflammability. Since the flameproof sheet covers the main body control board and blocks between the main body control board and the surrounding parts, even if a fire breaks out from the main body control board, it is prevented from spreading to the surrounding parts .

JP 2007-50011 A

  In general electrical products, there are electrical wiring connection portions such as terminals and connectors, and it is assumed that the electrical wiring connection portions are abnormally heated due to deterioration of the electrical wiring connection portion or poor connection in the electrical wiring connection portion. However, it is difficult to eliminate the electrical wiring connection part in the electrical product from the viewpoint of the assembly property related to the wiring. On the other hand, the heat generation and the interruption generated in the electrical wiring connection part by a simple method do not adversely affect the surroundings. I haven't found a method yet.

Thus, it is conceivable to cover the electrical wiring connecting portion with the flameproof sheet of Patent Document 1, but it is desirable that the flameproof sheet has a simple configuration in order to ensure good assemblability. In addition, the flameproof sheet not only simply covers the electrical wiring connection part, but also has an additional function other than that.
The present invention has been made under such a background, and has a simple structure, a function of keeping the electrical wiring connection portion safe, and a wiring cover for the electrical wiring connection portion having an additional function, and An object of the present invention is to provide an electrical product having the wiring cover and an electrical wiring connection portion.

  The invention according to claim 1 is formed of a non-combustible material and has a first cylinder having a predetermined length having one end opening and the other end opening, and a predetermined length having a one end opening and the other end opening formed by a non-combustible material. A second cylindrical body, and at least one of the first cylindrical body and the second cylindrical body is a cylindrical body through which an electrical wiring connecting portion is passed so as to penetrate from the one end opening to the other end opening in use. And a connecting portion that is formed of a non-combustible material and connects the one end opening edge of the first cylinder and the one end opening edge of the second cylinder, and the connecting portion includes the first cylinder and the first cylinder. One end opening of two cylinders opposes each other, and the first cylinder and the second cylinder have an elastic biasing force that biases in a linearly extending direction. It is a cover.

The invention according to claim 2 is characterized in that the connecting portion connects a substantially semi-periphery of the one end opening of the first cylinder and a substantially semi-periphery of the one end opening of the second cylinder. A wiring cover for an electrical wiring connecting portion according to claim 1.
According to a third aspect of the present invention, when the wiring cover is used, the first and second cylinders are folded around the connecting portion, and the first and second cylinders are folded. The wiring cover for an electrical wiring connection part according to claim 1, wherein each of the other end opening side portions functions as a fixing contact portion of the wiring cover.

  According to a fourth aspect of the present invention, the wiring cover is formed of a noncombustible material and includes a long cylindrical body having elasticity, and intersects the longitudinal direction at a substantially central portion in the longitudinal direction of the long cylindrical body. The cut in the direction is formed about half of the entire circumference of the cylinder, and the portion of the cylinder that is substantially in the center of the length direction that does not have a cut constitutes the connecting portion, and is divided by the cut. The one side of the long cylindrical body constitutes the first cylindrical body, and the other side constitutes the second cylindrical body. The electric wiring connection part according to any one of claims 1 to 3, It is a wiring cover.

The invention according to claim 5 is characterized in that the longitudinal cylindrical body includes a silicon varnish glass braided tube, a silicon tube, a glass braided tube, and an insulating heat shrinkable tube. This is a wiring cover.
Invention of Claim 6 is accommodated in the wiring cover for electrical wiring connection parts in any one of Claims 1-5, and the said 1st cylinder and the said 2nd cylinder of the said wiring cover. The wiring cover is folded around the connecting portion, and the other end opening side of the first cylinder and the second cylinder is directed downward, Positioned by being inserted into a gap formed between a pair of opposing walls, and the other end opening side portions of the first cylinder and the second cylinder are stretched against the walls by the elastic biasing force of the connecting portion. It is an electrical product characterized by being made.

According to the first aspect of the present invention, the wiring cover for the electrical wiring connecting portion (hereinafter simply referred to as “wiring cover”) has a predetermined length both having one end opening and the other end opening. It is a simple structure formed by connecting one end opening edges of the first cylinder and the second cylinder with a connecting portion.
When using the wiring cover, at least one of the first cylinder and the second cylinder is passed through the electrical wiring connecting portion so as to penetrate from the opening at one end to the opening at the other end, and the electrical wiring connected to the electrical wiring connecting portion is , Drawn from one end opening and the other end opening. In this state, the electrical wiring connection portion is covered with the wiring cover by being accommodated in the corresponding one in the first cylinder and the second cylinder.

Here, since the 1st cylinder and the 2nd cylinder are formed with the noncombustible material, even if the electrical wiring connection part should be heated abnormally, the 1st cylinder and the 2nd which accommodate the electrical wiring connection part The cylinder does not burn, and the first cylinder and the second cylinder keep the electrical wiring connection portion from affecting the surrounding members.
And since the connection part which connects the one end opening edges of a 1st cylinder and a 2nd cylinder is formed with the incombustible material, a connection part can also fully endure heating.

  The connecting portion has an elastic urging force. Due to the elastic urging force, the one end openings of the first cylinder and the second cylinder face each other, and the first cylinder and the second cylinder are linearly formed. It is energized in the extending direction. Therefore, when the electrical wiring connection portion is covered with the wiring cover, the wiring cover is folded around the connecting portion so that the other end side of the first cylinder and the other end side of the second cylinder are close to each other. The wiring cover tends to return to the state before being folded by the elastic biasing force of the connecting portion, and the gap between the other end side of the first cylinder and the other end side of the second cylinder tends to widen.

Taking advantage of this property, for example, if the folded wiring cover is inserted into a narrow space in the electrical product, the first and second cylinders of the wiring cover that are intended to return to the state before being folded are narrow in the electrical product. Since it stretches against a pair of walls that partition the space, the wiring cover can be provided with an additional function of fixing the wiring cover itself to the electrical product.
As described above, it is possible to provide a wiring cover having an original function of covering the electrical wiring connecting portion and ensuring the safety of the connecting portion, and an additional function in addition to the function, with a simple configuration.

  According to invention of Claim 2, since the connection part has connected the substantially half periphery of the one end opening of the 1st cylinder, and the substantially half periphery of the one end opening of the 2nd cylinder, the 1st cylinder At each one end opening of the second cylindrical body, at least approximately half of the circumference not connected by the connecting portion is opened. Therefore, when using the wiring cover, it is possible to reliably pass the electric wiring connecting portion so as to penetrate from the one end opening to the other end opening in both the first cylinder and the second cylinder.

  According to the invention described in claim 3, when the wiring cover is used, the first cylinder and the second cylinder are folded around the connecting portion. Therefore, if the first and second cylinders in the folded state are inserted into a narrow space in the electrical product, the other end opening side portions of the folded first and second cylinders are connected to the wiring cover. It functions as a fixing contact portion and contacts with a pair of walls on the electric product side that partitions the narrow space described above.

  Here, the folded first cylinder and the second cylinder are stretched between the pair of walls on the electric product side in an attempt to return to the state before being folded by the elastic biasing force of the connecting portion, thereby The wiring cover is fixed to the electrical product. In other words, the wiring cover can be folded around the connecting part and inserted into the above-mentioned narrow space in the electrical product without having to provide a member for fixing the wiring cover to the electrical product separately from the wiring cover. Since the cover itself is stretched between the pair of walls on the electrical product side by the elastic biasing force of the connecting portion, the wiring cover can be easily fixed to the electrical product.

  And the other end side of the first cylinder and the other of the second cylinder in a state where the electrical wiring connection portion is covered by the wiring cover by being accommodated in the corresponding one in the first cylinder and the second cylinder. If the wiring cover is folded around the connecting portion so that the end sides are close to each other, the one end opening is closed in each of the first cylinder and the second cylinder. In this state, if the closed one-end opening is arranged at a position higher than the other-end opening, the heat of the electrical wiring connecting portion cannot leak out of the wiring cover from the one-end opening, It is confined in the wiring cover. Therefore, the electrical wiring connection portion can be safely covered.

According to the fourth aspect of the present invention, in the longitudinal center of the longitudinal cylinder formed of a noncombustible material and having elasticity, the cut in the cross direction in the longitudinal direction is substantially the entire circumference of the cylinder. By forming only about half, the first cylinder, the second cylinder, and the connecting portion are formed, and the wiring cover can be easily formed.
Here, as shown in claim 5, the longitudinal cylindrical body is preferably any one of a silicon varnish glass braided tube, a silicon tube, a glass braided tube and an insulating heat-shrinkable tube having excellent incombustibility and elasticity. .

  According to the sixth aspect of the present invention, it is possible to provide an easy-to-use electric product having a wiring cover having an additional function of fixing itself to the electric product and an electric wiring connecting portion.

(A) is the perspective view of the wiring cover 1 which concerns on one Embodiment of this invention, (b) is the figure which looked at the wiring cover 1 in the attitude | position of (a) from the paper surface front side in FIG. (C) is the figure which looked at the wiring cover 1 in the attitude | position of (a) from the paper surface right side in FIG. 1A shows a state in which the wiring cover 1 in the state of FIG. 1B is attached to the connector 4, and FIG. 1B shows that the wiring cover 1 in the state of FIG. The attached state is shown. 2A shows a state where the wiring cover 1 is folded in FIG. 2A, and FIG. 2B shows a state where the wiring cover 1 is folded in FIG. () Is the figure which looked at the wiring cover 1 in the state of (a) and (b) from the downward direction. FIG. 4 is a left side sectional view of a vacuum cleaner that is an example of the electric product 20, and shows a state in which the wiring cover 1 in the state of FIG. 3 is attached. The state where the closed end crimp terminal 30 is inserted into both the first cylinder 9 and the second cylinder 10 of the wiring cover 1 in a state where the wiring cover 1 is bent so that the cut 3 is opened is shown, (a) FIG. 3 is a diagram of the wiring cover 1 viewed from a position where only one of the first cylinder body 9 and the second cylinder body 10 is visible, and (b) shows both the first cylinder body 9 and the second cylinder body 10. It is the figure which looked at the wiring cover 1 from the position which can see. FIG. 5 shows a state in which the wiring cover 1 is folded so as to close the cut line 3, (a) corresponds to FIG. 5 (a), (b) corresponds to FIG. 5 (b), (C) is the figure which looked at the wiring cover 1 in the state of (a) and (b) from the downward direction. (A) is a perspective view of the switch 40 in the ON state, and (b) is a side view of the switch 40 in the OFF state, and shows a state in which the connector 46 is connected to each terminal 43 of the switch 40. . (A) is a side view of the switch 40 in the ON state, and shows a state in which the connector 46 covered with the wiring cover 1 is connected to each terminal 43 of the switch 40, and (b) In a), the connector 46 is overheated.

Embodiments of the present invention will be specifically described below with reference to the drawings.
1A is a perspective view of a wiring cover 1 according to an embodiment of the present invention, and FIG. 1B is a perspective view of the wiring cover 1 in the posture of FIG. (C) is the figure which looked at the wiring cover 1 in the attitude | position of (a) from the paper surface right side in FIG.

A wiring cover 1 shown in FIG. 1 is used to cover an electrical wiring connecting portion. The wiring cover 1 has a long cylindrical body.
Here, as the wiring cover 1, it is preferable to use a tube having nonflammability (heat resistance), insulation and elasticity. Specifically, it is desirable to use any one of a silicon varnish glass braided tube, a silicon tube, a glass braided tube, and an insulating heat-shrinkable tube as the wiring cover 1, and most desirably, it is particularly excellent in any of the above characteristics. A silicon varnish glass braided tube may be used.

The cross section of the wiring cover 1 has an annular shape (see FIG. 1A). Both ends of the wiring cover 1 in the longitudinal direction (also the axial direction in which the central axis extends) are opened to form openings 2, and the inside and outside of the wiring cover 1 communicate with each other through the openings 2.
Further, a cut 3 is formed in the middle of the wiring cover 1 in the length direction (in FIG. 1, a substantially central portion in the length direction). The cut 3 is a slit shape extending along the circumferential direction of the wiring cover 1 (crossing direction that intersects (strictly orthogonally intersects with) the length direction of the wiring cover 1), and is a part in the circumferential direction of the wiring cover 1 ( A part of the peripheral wall is cut. In this embodiment, the cut 3 is formed in about half of the entire circumference of the wiring cover 1, and about 50% of the entire area (substantially half circumference) in the circumferential direction of the wiring cover 1 is continuously cut. However, the number of regions to be cut is set as appropriate (see FIGS. 1B and 1C). However, if the cut 3 is formed in approximately half of the entire circumference of the wiring cover 1, the wiring cover 1 can be easily folded when the wiring cover 1 is folded as will be described later.

  Here, a portion where the cut 3 is not formed in the substantially central portion in the length direction of the wiring cover 1 is referred to as a connecting portion 50 (see FIG. 1C). In the wiring cover 1 divided by the cut line 3, one side (lower side in FIG. 1) in the length direction of the wiring cover 1 is referred to as a first cylindrical body 9, and the other side (upper side in FIG. 1) is second. It is referred to as a cylindrical body 10. However, since the method of determining the first cylinder body 9 and the second cylinder body 10 is merely for the sake of convenience, contrary to the present embodiment, in the wiring cover 1, the portion above the cut 3 in FIG. The portion below the cut 3 may be the second cylinder 10.

Then, by forming a cut 3 that is approximately half of the entire circumference of the cylindrical body at the substantially central portion in the longitudinal direction of the long cylindrical body (tube) formed of noncombustible material in this way, The 1 cylinder 9, the 2nd cylinder 10, and the connection part 50 are formed, and the wiring cover 1 can be formed easily.
Both the first cylinder 9 and the second cylinder 10 are cylinders having a predetermined length. In FIG. 1, the first cylindrical body 9 and the second cylindrical body 10 are arranged so as to be coaxial and extend linearly up and down in a state where the first cylindrical body 9 is located below the second cylindrical body 10. It is out.

  And both the 1st cylinder 9 and the 2nd cylinder 10 have opening in the both ends in each length direction. With reference to the posture of FIG. 1, in the first cylinder 9, the upper end opening is one end opening 9A and the lower end opening is the other end opening 9B (see FIGS. 1B and 1C). . The one end opening 9 </ b> A and the other end opening 9 </ b> B communicate with the first cylinder 9. On the other hand, in the second cylinder 10, the lower end opening is the one end opening 10A, and the upper end opening is the other end opening 10B (see FIGS. 1B and 1C). The one end opening 10 </ b> A and the other end opening 10 </ b> B communicate with the second cylinder 10.

Here, the other end opening 9B of the first cylinder 9 is the lower opening 2 in the wiring cover 1, and the other end opening 10B of the second cylinder 10 is the upper opening 2 in the wiring cover 1. That is.
As shown in FIG. 1 (c), the connecting portion 50 described above has a one-end opening edge 9C that borders the one-end opening 9A in the first cylinder 9 (here, a portion that forms a substantially semi-periphery of the one-end opening 9A). And one end opening edge 10 </ b> C (here, a portion forming a substantially semi-periphery of the one end opening 10 </ b> A) that borders the one end opening 10 </ b> A in the second cylinder 10. That is, the wiring cover 1 has a simple configuration formed by connecting the opening ends (9C and 10C) of the first cylinder 9 and the second cylinder 10 to each other by the connecting portion 50.

  Here, since the whole wiring cover 1 has the elasticity mentioned above, the connection part 50 also has elasticity (elastic urging | biasing force). Specifically, in the connecting portion 50, one end openings (one end opening 9 </ b> A and one end opening 10 </ b> A) of the first cylinder body 9 and the second cylinder body 10 face each other by the elastic biasing force, The 1st cylinder 9 and the 2nd cylinder 10 are always urged | biased in the direction where the 2nd cylinder 10 extends in the linear form mentioned above.

Next, a procedure for attaching such a wiring cover 1 to the electrical wiring connecting portion will be described.
As an example, a procedure for attaching the wiring cover 1 to the connector 4 (electrical wiring connecting portion) will be described.
2A shows a state in which the wiring cover 1 in the state of FIG. 1B is attached to the connector 4, and FIG. 2B shows the wiring cover 1 in the state of FIG. 1C. Is shown attached to the connector 4. 3A shows a state in which the wiring cover 1 is folded in FIG. 2A, and FIG. 3B shows a state in which the wiring cover 1 is folded in FIG. 2B. (C) is the figure which looked at the wiring cover 1 in the state of (a) and (b) from the downward direction.

  In the connector 4 in the posture shown in FIG. 2 (upper and lower longitudinal posture), the larger one (the upper one) is the male part 5 and the smaller one (the lower one) is the female part 6. To do. With reference to the posture in FIG. 2, the electrical wiring 7 is connected to the male part 5 and extends upward from the upper end part of the male part 5. On the other hand, an electrical wiring 8 is connected to the female part 6 and extends downward from the lower end part of the female part 6. Each of the electrical wirings 7 and 8 is formed by covering the lead wire with an insulating outer skin.

In FIG. 2, the male part 5 and the female part 6 are connected.
When attaching the wiring cover 1 to such a connector 4, first, wiring is performed from one of the openings 2 in the wiring cover 1 (the lower opening 2 (the other end opening 9 </ b> B of the first cylinder 9) in FIG. 2). The connector 4 is inserted into the cover 1. At this time, in FIG. 2, the connector 4 is inserted so that the electrical wiring 7 of the male part 5 is at the head.

  When the connector 4 (male part 5 and female part 6) is completely inserted into the first cylinder 9 of the wiring cover 1, the connector 4 is moved (further insertion) until the connector 4 reaches the cut 3. ). Then, the connector 4 is accommodated inside the portion (first cylinder 9) from the insertion side opening 2 (the other end opening 9B) to the cut 3 in the wiring cover 1, whereby the wiring cover 1 Covered. In this state, the electrical wiring 7 of the male part 5 is disposed in the second cylinder 10 after passing through the one end opening 9A of the first cylinder 9 and the one end opening 10A of the second cylinder 10 (FIG. 1). (Refer to (b) and (c)), the electrical wiring 8 of the female portion 6 is drawn out of the wiring cover 1 (downward) from the opening 2 (the other end opening 9B) of the first cylinder 9. That is, when the wiring cover 1 is used, the connector 4 is passed through the first cylinder 9 so as to penetrate from the one end opening 9A to the other end opening 9B. Here, for the sake of illustration, the connector 4 is passed (accommodated) through the first cylinder 9, but may be passed through the second cylinder 10 so as to penetrate from the one end opening 10 </ b> A to the other end opening 10 </ b> B. The connectors 4 may be passed through both the first cylinder 9 and the second cylinder 10 one by one.

  Here, as described above, the connecting portion 50 includes the substantially half-periphery (one-end opening edge 9C) of the one-end opening 9A of the first cylinder 9 and the substantially half-periphery (one-end opening of the one-end opening 10A of the second cylinder 10). Edge 10 </ b> C) is connected to each other, and at each end opening 9 </ b> A, 10 </ b> A of each of the first cylinder 9 and the second cylinder 10, at least approximately half of the circumference that is not connected by the connecting portion 50 is opened ( (Refer FIG.1 (b), (c) and FIG.2 (b)). Therefore, in both the first cylinder body 9 and the second cylinder body 10, it is possible to reliably pass the connector 4 so as to penetrate from the one end openings 9A, 10A to the other end openings 9B, 10B.

  Then, after passing the connector 4 through the first cylinder 9 (after being accommodated), as shown in FIG. 2, the portion around the cut 3 in the second cylinder 10 is directed toward the inside of the second cylinder 10. Indented, thereby widening the cut 3 (see FIG. 2B). Subsequently, the electrical wiring 7 of the male part 5 is pulled out from the cut 3 (in other words, one end opening 9 </ b> A of the first cylinder 9) to the outside of the wiring cover 1. Then, the drawn electrical wiring 7 is brought close to either end in the longitudinal direction (circumferential direction of the wiring cover 1) of the cut 3 in the cut 3 (not shown).

  Thereafter, as shown in FIG. 3, the wiring cover 1 (the first cylindrical body 9 and the second cylindrical body 10) is folded around the connecting portion 50 described above so that the vicinity of the cut 3 becomes the fold 11 in the wiring cover 1. . Specifically, the first cylinder 9 (strictly speaking, the other end opening 9B side of the first cylinder 9) and the second cylinder 10 (strictly speaking, the other end opening 10B side of the second cylinder 10) are connected. The wiring cover 1 is folded so as to approach each other and so that the cut 3 is closed (narrowed). And the 1st cylinder 9 and the 2nd cylinder 10 are pinched together, and the state where the wiring cover 1 was folded is maintained.

Thus, the attachment of the wiring cover 1 to the connector 4 is completed.
In this state, in FIG.3 (b), each of the 1st cylinder 9 and the 2nd cylinder 10 is extended substantially in parallel toward the downward direction from the crease | fold 11 (connection part 50), and the 2nd cylinder 10 is shown. 3 is approaching the first cylinder 9 from the left side in FIG.
When the wiring cover 1 and the connector 4 in this state are viewed from below as shown in FIG. 3C, the first cylinder 9 and the second cylinder 10 are respectively the first cylinder 9 and the second cylinder. The body 10 is deformed so as to be flat in the overlapping direction (vertical direction in FIG. 3C). Here, the second cylinder 10 is flatter than the first cylinder 9 because the connector 4 is not accommodated.

  Further, in this state, the cut 3 is located at the deepest part (the upper end in FIG. 3B) of the gap X between the first cylinder 9 and the second cylinder 10, and the cut 3 is closed. It extends in a straight line. When viewed from below as shown in FIG. 3C, the cut 3 extends linearly along the left-right direction in FIG. Accordingly, both the one end opening 9A of the first cylinder 9 and the one end opening 10A of the second cylinder 10 (see FIG. 2B) are closed.

At this time, as described above, the electrical wiring 7 (see FIG. 2) of the male part 5 drawn out from the cut 3 to the outside of the wiring cover 1 is one end of the straight cut 3 (see FIG. 3A). And it is pulled out from the wiring cover 1 from the right end in FIG. 3 (c) (see FIG. 3 (a) and FIG. 3 (b)).
That is, as shown in FIG. 3B, in the state where the attachment of the wiring cover 1 to the connector 4 is completed, the wiring cover 1 is folded, and the connector 4 (male portion 5 and female portion in a mutually connected state). 6) is completely accommodated in the first cylinder 9 whose upper end is closed by folding the wiring cover 1. On the other hand, the electrical wiring 7 of the male part 5 is pulled out from one end of the closed cut 3 (see FIG. 3A), and the electrical wiring 8 of the female part 6 is opened to the opening 2 (the other end of the first cylinder 9). It is pulled out from the opening 9B).

  Here, when the hands are released from the first cylinder 9 and the second cylinder 10, the wiring cover 1 is folded by the elasticity of the wiring cover 1 (particularly, the elastic biasing force of the connecting portion 50 described above). Immediately return to the state before folding (see FIG. 2). Therefore, as described above, the first cylinder 9 and the second cylinder 10 are pinched together until the connector 4 and the wiring cover 1 are assembled to the electrical product 20 (see FIG. 4 described later). Thus, it is necessary to keep the wiring cover 1 folded.

FIG. 4 is a left sectional view of a vacuum cleaner as an example of the electric product 20 and shows a state in which the wiring cover 1 in the state of FIG. 3 is attached.
As described above, the connector 4 to which the wiring cover 1 is attached (in other words, the wiring cover 1 attached to the connector 4) is connected to the electrical product 20 (in FIG. 4, the electrical product 20). A vacuum cleaner is shown as an example.).

  Specifically, the folded wiring cover 1 (and the wiring cover 1 is attached in a relatively narrow gap (space) Y between a pair of opposing walls 21 on the electrical product 20 side inside the electrical product 20. Connector 4) is inserted. The wiring cover 1 (connector 4) is assembled to the electrical product 20 by such simple work. In addition, when removing the wiring cover 1 (connector 4) from the electric product 20, the wiring cover 1 in the folded state may be pulled out from the gap Y between the pair of walls 21 and is simple.

  In a state where the folded wiring cover 1 is assembled to the electrical product 20, the first cylindrical body 9 and the second cylindrical body 10 of the wiring cover 1 and the pair of walls 21 all extend substantially in parallel. In each of the first cylinder body 9 and the second cylinder body 10, the other end opening (9B and 10B) side faces downward. In this state, the hands are separated from the first cylinder body 9 and the second cylinder body 10, and the wiring cover 1 is about to return to the state before being folded by the elastic biasing force of the connecting portion 50. Therefore, the first cylinder 9 and the second cylinder 10 are about to be separated from each other (the gap between the other end opening 9B side of the first cylinder 9 and the other end opening 10B side of the second cylinder 10 is widened). At that time, in FIG. 4, the portion on the other end opening 9 </ b> B side (referred to as the other end opening side portion 9 </ b> D) contacts the right wall 21 </ b> A in FIG. In the cylindrical body 10, a portion on the other end opening 10B side (referred to as the other end opening side portion 10D) is in contact (pressure contact) with the left wall 21B. In other words, the folded wiring cover 1 is stretched between each pair of walls 21 while being stretched between the pair of walls 21.

  That is, when the wiring cover 1 is used, the other end opening side portions (9D and 10D) of the folded first cylindrical body 9 and the second cylindrical body 10 are elastic with respect to the corresponding walls 21. By being stretched (abutted) by the urging force, it functions as a fixing contact portion of the wiring cover 1. As a result, the assembly of the wiring cover 1 and the connector 4 is positioned in the electrical product 20 while maintaining the folded state of the wiring cover 1 (fixed to the electrical product 20 and one of the electrical products 20. Part). Here, since the wiring cover 1 is stretched against each wall 21, even if vibration occurs in the electrical product 20, the position of the wiring cover 1 is not easily displaced.

  In this manner, the wiring cover 1 having a simple configuration covers the electrical wiring connecting portion (the connector 4 described above) to ensure the safety of the connecting portion (to be described later), and an additional function in addition to the function. (A function of fixing the wiring cover 1 itself to the electrical product 20). Therefore, even if a member for fixing the wiring cover 1 to the electrical product 20 is not provided separately from the wiring cover 1, the wiring cover 1 is simply folded around the connecting portion 50 and inserted into the gap Y described above. The wiring cover 1 itself can be easily fixed to the electrical product 20 by stretching between the pair of walls 20 on the electrical product 20 side by the elastic biasing force of the connecting portion 50. In addition, it is possible to provide an easy-to-use electric product 20 having the wiring cover 1 having the additional function of fixing itself to the electric product 20 and the electric wiring connecting portion.

  In this state, in the wiring cover 1, the inside of the first cylinder 9 that accommodates the connector 4 is blocked by the fold 11 at the upper end. Therefore, even if the connector 4 is abnormally heated due to poor connection between the male part 5 and the female part 6 or deterioration of the connected part, the heat of the connector 4 is blocked at a position higher than the other end opening 9B. One end opening 9 </ b> A (see FIGS. 1C and 2B) and the slit 3 cannot leak out of the wiring cover 1 and are confined in the first cylinder 9 of the wiring cover 1. Here, since the entire wiring cover 1 is nonflammable (formed of nonflammable material), the wiring cover 1 is not burned by the heat confined in the first cylindrical body 9, and the first cylindrical body is not burned. 9 (wiring cover 1) keeps the connector 4 from affecting the surrounding members of the electrical product 20. Moreover, since the connection part 50 which connects the one end opening edges (9C and 10C, see FIG.2 (b)) of the 1st cylinder 9 and the 2nd cylinder 10 is also formed with the nonflammable material, it is connected. The part 50 can also sufficiently withstand the heating.

And since the heat | fever of the connector 4 is confined in the 1st cylinder 9 in this way, the connector 4 can be safely covered with the wiring cover 1. FIG. In particular, since the inside of the first cylinder body 9 is blocked by the fold 11 at the upper end, the heat in the first cylinder body 9 is transmitted to the parts located above the wiring cover 1 in the electrical product 20. Absent.
Incidentally, if the male part 5 and the female part 6 of the connector 4 are so-called faston terminals, gibboshi terminals, etc. and are caulked and connected to the above-described lead wires of the electrical wirings 7 and 8, the caulking is poor. Therefore, the above-mentioned connection failure is likely to occur.

  Even if the connector 4 is abnormally heated as described above, the connector 4 is accommodated in the first cylinder 9 of the wiring cover 1 having insulation properties, and the wiring cover 1 can be used for wiring in the electrical product 20. Since it is thermally shielded from the parts around the cover 1 (particularly the wall 21), the heat of the connector 4 is hardly transmitted to the wall 21, and problems such as melting of the wall 21 by heat can be prevented. In particular, in the pair of walls 21, the above-described left wall 21 </ b> B that is in contact with the second cylinder 10 that does not accommodate the connector 4 is larger than the right wall 21 </ b> A by the thickness of the second cylinder 10. Since it is away from the connector 4, it is less likely to receive the heat of the connector 4.

Furthermore, since the wiring cover 1 has not only thermal insulation but also electrical insulation, the connector 4 accommodated in the first cylinder 9 of the wiring cover 1 can be used to provide components around the wiring cover 1. On the other hand, electric leakage is prevented.
Next, a procedure for attaching the wiring cover 1 to the closed-end crimp terminal 30 (electrical wiring connecting portion) will be described. Hereinafter, the closed end crimp terminal 30 is abbreviated as “crimp terminal 30”.

  FIG. 5 shows a state in which the crimp terminal 30 is inserted into both the first cylinder 9 and the second cylinder 10 of the wiring cover 1 in a state where the wiring cover 1 is bent so that the cut 3 is opened. ) Is a view of the wiring cover 1 from a position where only one of the first cylinder body 9 and the second cylinder body 10 can be seen, and (b) is a diagram illustrating the first cylinder body 9 and the second cylinder body 10. It is the figure which looked at the wiring cover 1 from the position which can see both. 6 shows a state in which the wiring cover 1 is folded so as to close the cut 3 in FIG. 5, (a) corresponds to FIG. 5 (a), and (b) shows FIG. 5 (b). (C) is the figure which looked at the wiring cover 1 in the state of Fig.6 (a) and (b) from the downward direction.

Referring to FIG. 5, the closed end crimp terminal 30 includes a resinous cover portion 31 and a metal connection portion 32.
In FIG. 5, the cover portion 31 has a longitudinal cylindrical shape along the vertical direction (longitudinal direction of the first tubular body 9 or the second tubular body 10 of the wiring cover 1). In the cover portion 31, one end portion in the longitudinal direction (lower end portion in FIG. 5) is closed and rounded, while the other end portion in the longitudinal direction (upper end portion in FIG. 5) is opened to open 33. The inside and outside of the cover part 31 communicate with each other through the opening 33.

The connection part 32 is cylindrical, is long in the axial direction, and is open at both ends in the axial direction. The connection part 32 is accommodated in the cover part 31 in a state of being coaxial with the cover part 31, and is fixed to the cover part 31. Specifically, the connection part 32 is press-fitted into the cover part 31.
Such a crimp terminal 30 is used when the two electric wires 34 and the electric wires 35 are connected to each other. Specifically, referring to FIG. 5A, electric wires 34 and 35 are arranged in parallel to each other, and lead wires (not shown) at the end portion on the same side (the lower end portion in FIG. 5A). ) Is exposed. Then, lead wires (not shown) exposed in each of the electrical wirings 34 and 35 are inserted into the cover portion 31 from the opening 33 in the crimp terminal 30 and further inserted into the hollow portion of the connection portion 32. In this state, when the cover portion 31 is sandwiched with a tool such as pliers, the connecting portion 32 is deformed, and at that time, the respective lead wires (not shown) of the electric wires 34 and 35 are sandwiched. Thereby, the electrical wiring 34 and the electrical wiring 35 are electrically connected.

In this way, two crimp terminals 30 to which the electrical wiring 34 and the electrical wiring 35 are connected are prepared, and the wiring cover 1 is attached to the crimp terminal 30.
First, as shown in FIG. 5B, the connection is made so that the cut 3 (see also FIG. 1A) spreads (opens), and the vicinity of the cut 3 (the connecting portion 50) becomes the fold 11. The wiring cover 1 is bent around the portion 50. At this time, in the bent wiring cover 1 with the posture of FIG. 5B as a reference, the left portion is the first cylinder 9 described above, and the right portion is the second cylinder 10 described above. Yes (or vice versa). In FIG. 5B, the first cylinder 9 and the second cylinder 10 extend downward in a state of being parallel to each other with the widened cut 3 as the upper end. In this state, the one end opening 9 </ b> A described above is at the upper end of the first cylinder 9, and the other end opening 9 </ b> B described above is at the lower end of the first cylinder 9. Further, the one end opening 10 </ b> A described above is at the upper end of the second cylinder 10, and the other end opening 10 </ b> B described above is at the lower end of the second cylinder 10.

  In the state where the wiring cover 1 is bent in this way, one crimp terminal 30A is inserted into the first cylinder 9 from the cut 3 (one end opening 9A) on the first cylinder 9 side, and the inside of the first cylinder 9 To house. In other words, the crimp terminal 30A is passed through the first cylinder 9 so as to penetrate from the one end opening 9A to the other end opening 9B. At this time, the electric wiring 34 and the electric wiring 35 of the crimp terminal 30A are drawn out from the one end opening 9A of the first cylinder 9 to the outside (upward in FIG. 5B).

  Further, the remaining one crimp terminal 30 </ b> B is inserted into the second cylinder 10 from the cut 3 (one end opening 10 </ b> A) on the second cylinder 10 side and accommodated in the second cylinder 10. In other words, the crimp terminal 30B is passed through the second cylinder 10B so as to penetrate from the one end opening 10A to the other end opening 10B. At this time, the electrical wiring 34 and the electrical wiring 35 of the crimp terminal 30B are led out from the one end opening 10A of the second cylinder 10 to the outside (upward in FIG. 5B).

Then, in each crimp terminal 30, the electrical wiring 34 and the electrical wiring 35 are moved toward a direction in which the distance between the electrical wiring 34 and the electrical wiring 35 increases (in FIG. 5B, a direction perpendicular to the paper surface) (see FIG. 6A).
Thereafter, the wiring cover 1 is folded around the connecting portion 50 so as to close the cut 3 that has been spread so far and so that the vicinity of the cut 3 (the connecting portion 50) becomes the fold 11. When the wiring cover 1 is folded from the state shown in FIG. 5B, the first cylindrical body 9 and the second cylindrical body 10 extend upward with the cut 3 (connecting portion 50) as the lower end, and the entire wiring cover 1 is substantially V-shaped. Form (not shown). And each opening 2 (other end opening 9B, 10B) located in the lower end until now in the 1st cylinder 9 and the 2nd cylinder 10 comes to be located in an upper end (not shown).

When the wiring cover 1 folded in this way is turned upside down, the wiring cover 1 assumes the posture shown in FIG.
Thus, the attachment of the wiring cover 1 to the crimp terminal 30 is completed.
In this state, in FIG. 6B, each of the first cylindrical body 9 and the second cylindrical body 10 extends downward in parallel from the fold line 11 (connecting portion 50), and the entire wiring cover 1 is It has a substantially V shape that is upside down.

When the wiring cover 1 and the crimp terminal 30 in this state are viewed from below as shown in FIG. 6C, the first cylinder 9 and the second cylinder 10 are respectively the first cylinder 9 and the second cylinder 10. The cylindrical body 10 is deformed to be flat in the overlapping direction (vertical direction in FIG. 6C).
In this state, the cut 3 is located at the deepest portion (the upper end in FIG. 6B) of the gap X between the first tube 9 and the second tube 10, and the cut 3 is closed. It extends in a straight line. When viewed from below as shown in FIG. 6C, the cut 3 extends linearly along the left-right direction in FIG. 6C.

  At this time, as described above, the electrical wirings 34 and 35 (FIG. 5) of the crimp terminals 30 drawn out from the cut 3 (corresponding one end opening 9A and one end opening 10A, see FIG. 5) to the outside of the wiring cover 1. In FIG. 6, the electrical wiring 34 is drawn out of the wiring cover 1 from one end (the left end in FIG. 6A) of the straight cut 3. On the other hand, the electrical wiring 35 is drawn out of the wiring cover 1 from the other end (the right end in FIG. 6A) of the straight cut 3.

  That is, as shown in FIG. 6B, the wiring cover 1 is folded in a state where the attachment of the wiring cover 1 to the two crimping terminals 30 is completed, and the wiring cover 1 is folded at one crimping terminal 30. Thus, the upper end (the above-described one end openings 9A and 10A, see FIG. 5) is completely accommodated in one of the first cylinder 9 and the second cylinder 10, and the other crimp terminal 30 is The first cylinder 9 and the second cylinder 10 are completely accommodated in the other. On the other hand, the electrical wirings 34 and 35 of each crimp terminal 30 are drawn out of the wiring cover 1 from one end or the other end in the longitudinal direction of the cut line 3 which is closed and linear (FIG. 6 ( a)).

  Then, the wiring cover 1 attached to the crimp terminal 30 in this manner is inserted into the gap Y of the electrical product 20 and assembled to the electrical product 20 in the folded state as in the case of the connector 4 described above (see FIG. 4). In this way, since the wiring cover 1 is stretched against the pair of walls 21 (see FIG. 4) that define the gap Y, the electrical product 20 is positioned without displacement, and the crimp terminal 30 is Since the insides of the first cylindrical body 9 and the second cylindrical body 10 to be accommodated are closed by the fold 11 at the upper end, even if the crimp terminal 30 is heated abnormally, the periphery of the wiring cover 1 in the electrical product 20 There is no effect on the members.

In addition, since the folded wiring cover 1 tends to return to its original state (the state before being folded) due to elasticity, the wiring cover 1 stretches against the wall 21 (see FIG. 4) as described above. Besides using it, it can be used for other purposes.
7A is a perspective view of the switch 40 in the ON state, and FIG. 7B is a side view of the switch 40 in the OFF state in which the connector 46 is connected to each terminal 43 of the switch 40. Is shown. 8A is a side view of the switch 40 in the ON state, and shows a state in which the connector 46 covered with the wiring cover 1 is connected to each terminal 43 of the switch 40. FIG. ) Shows a state in which the connector 46 is overheated in (a).

  A switch 40 as shown in FIG. 7 is generally known (a so-called tumbler switch is shown in FIG. 7). Such a switch 40 includes a substantially rectangular parallelepiped resin-made casing 41, an operation portion 42 provided on the top surface of the casing 41 in FIG. 7, and a part thereof disposed in the casing 41. The casing 41 in FIG. Two terminals 43 projecting downward from the bottom of the main body and a contact 44 (see FIG. 7B) provided in the casing 41 are mainly provided.

  Referring to FIG. 7B, when the operation unit 42 is moved, the contact 44 slides in a predetermined direction (vertical direction in FIG. 7B). The contact 44 comes into contact with both terminals 43 when lowered to a predetermined position (see FIG. 8A). When the operation unit 42 is moved in this state (the switch 40 is in an ON state), the contact 44 is raised. Separate from both terminals 43. FIG. 7B shows a state in which the contact 44 is separated from both terminals 43 (the switch 40 is in an OFF state).

  And in each terminal 43, the connector 46 (electrical wiring connection part) connected to the electric wiring 45 is inserted and connected to the part which protrudes below from the bottom face of the casing 41 from the bottom. Here, a faston terminal is used as an example of the connector 46. Of the two terminals 43, the left side in FIG. 7B is identified as a terminal 43A, and the right side as a terminal 43B. In this state, the electric wires 45 of the two connectors 46 are bound together by a binding band 47. In this state, when the switch 40 is turned on (see FIG. 8A), the electrical wiring 45 on the terminal 43A side and the electrical wiring 45 on the terminal 43B side are conducted, and when the switch 40 is turned off (FIG. 7B). )), The electrical wiring 45 on the terminal 43A side and the electrical wiring 45 on the terminal 43B side are not conductive.

  In such a case, as shown in FIG. 8A, in the wiring cover 1 folded so as to close the cut line 3 (see also FIG. 1), the left portion in FIG. 8A (described above) The connector 46 connected to the terminal 43A is accommodated inside the first cylinder 9), and inside the right portion (referred to as the second cylinder 10 described above) in FIG. The connector 46 connected to the terminal 43B is accommodated. Then, the electrical wiring 45 of each connector 46 is drawn out from the cut 3. At this time, the opening 2 (the other end openings 9B and 10B) of the first cylindrical body 9 and the first portion 10 faces upward and faces the bottom surface of the casing 41 of the switch 40.

In this state, the folded wiring cover 1 tries to return to the state before the folding (see FIG. 1) due to its elasticity. Specifically, the first cylindrical body 9 and the second cylindrical body 10 are mutually connected. It is going to rotate centering on the crease | fold 11 (connection part 50) toward the direction (refer thick line arrow) which leaves | separates.
Therefore, if the connector 46 is overheated due to the above-described poor connection or the like with the switch 40 turned ON (here, it is assumed that the connector 46 on the right terminal 43B side is overheated), the heat of the connector 46 is increased. Then, it is transmitted to the bottom surface of the casing 41 through the opening 2 (the other end opening 10B) of the second cylindrical body 10, whereby the peripheral portion of the terminal 43B is melted in the resin casing 41. When the peripheral portion of the terminal 43B in the casing 41 melts to such an extent that the terminal 43B cannot be held, the terminal 43B is connected to the connector 46 by the elasticity of the wiring cover 1 described above, as shown in FIG. In this state, the casing 41 is detached. Thereby, the connection state between the terminal 43B and the contact 44 is forcibly canceled, and the electrical wiring 45 on the terminal 43A side and the electrical wiring 45 on the terminal 43B side are not conducted. As a result, the connector 46 is no longer overheated and gradually cools.

Thus, the wiring cover 1 can function as a simple thermal fuse by utilizing its elasticity.
The present invention is not limited to the embodiment described above, and various modifications can be made within the scope of the claims.
For example, in the wiring cover 1, at least the above-described connecting portion 50 (see FIG. 1C) only needs to have elasticity, and other portions (the first cylindrical body 9 and the second cylindrical body 10). As long as it is formed of a non-combustible material, it may not have elasticity.

Further, when it is not necessary to draw out the wiring (electrical wiring 7, 8, 34, 35 and 45, see FIGS. 2, 3, 5, 6 and 8) from the above-described cut 3 (see FIG. 1) of the wiring cover 1. In this case, the cut 3 may not be formed in the wiring cover 1.
In addition to the connector 4 and the like (see FIG. 2) in the above embodiment, the electrical wiring connection portion described above has a configuration in which a component is soldered to a lead wire. In this configuration, the component is soldered to the lead wire. The wiring cover 1 is used so that both of the portions are accommodated in the wiring cover 1.

DESCRIPTION OF SYMBOLS 1 Wiring cover for electrical wiring connection parts 3 Cut | disconnect 4 Connector 9 1st cylinder 9A One end opening 9B Other end opening 9C One end opening edge 9D Other end opening side part 10 Second cylinder 10A One end opening 10B Other end opening 10C One end opening Edge 10D Open side of other end 20 Electrical product 21 Wall 30 Closed end crimp terminal 46 Connector 50 Connection part Y Gap

Claims (6)

A first cylinder of a predetermined length formed of a non-combustible material and having one end opening and the other end opening;
A second cylinder having a predetermined length formed of a non-combustible material and having an opening at one end and an opening at the other end;
At least one of the first cylinder and the second cylinder is a cylinder through which an electrical wiring connecting portion is passed so as to penetrate from one end opening to the other end opening during use,
The connecting portion is formed of a noncombustible material, and further includes a connecting portion that connects one end opening edge of the first cylinder and one end opening edge of the second tube, and the connecting portion includes the first cylinder and the second tube. A wiring cover for an electrical wiring connecting portion, wherein one end openings of the body face each other and have an elastic urging force that urges the first and second cylinders in a linearly extending direction.   2. The electrical wiring according to claim 1, wherein the connecting portion connects a substantially semi-periphery of the one end opening of the first cylinder and a substantially semi-periphery of the one end opening of the second cylinder. Wiring cover for connection part.   When the wiring cover is used, the first cylindrical body and the second cylindrical body are folded around the connection portion, and the other end opening side portions of the folded first cylindrical body and the second cylindrical body are The wiring cover for an electrical wiring connecting portion according to claim 1, wherein the wiring cover functions as a fixing contact portion of the wiring cover. The wiring cover is formed of a non-combustible material and includes a long cylindrical body having elasticity,
The cut in the cross direction in the longitudinal direction is formed at approximately the center of the longitudinal cylinder in the length direction, and is approximately half of the entire circumference of the cylinder. The part that does not contain constitutes the connecting part,
4. The electricity according to claim 1, wherein one side of the long cylindrical body divided by the cut constitutes the first cylindrical body and the other side constitutes the second cylindrical body. Wiring cover for wiring connection.   5. The wiring cover for an electrical wiring connecting portion according to claim 4, wherein the elongated cylindrical body includes a silicon varnish glass braided tube, a silicon tube, a glass braided tube, and an insulating heat shrinkable tube. A wiring cover for an electrical wiring connection part according to any one of claims 1 to 5,
An electrical wiring connection portion accommodated in at least one of the first cylinder and the second cylinder of the wiring cover;
The wiring cover is formed between a pair of opposing walls in a state in which the other end opening side of the first cylinder and the second cylinder is directed downward by being folded around the connecting portion. An electrical product, wherein the electrical product is inserted into the gap and positioned by stretching the other end opening side portion of the first cylinder and the second cylinder against the wall by an elastic biasing force of the connecting portion.

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