JP5108732B2 - Crimp terminal insulation cover - Google Patents

Description

  The present invention relates to an insulating cover that insulates an electrode portion (screwing portion) of a crimp terminal.

  Conventionally, during wiring work to a mounted component, there is a case where a portion (electrode part) where a crimp terminal is fixed by screwing is left uninsulated and there is a risk of electric shock. In particular, the high-voltage circuit such as the power supply unit needs to insulate the electrode unit.

  For this reason, conventionally, as a countermeasure, as shown in FIG. 10, the electrode part 3 to which the crimp terminal 1 is screwed and fixed is covered with a heat-shrinkable tube 5 for insulation treatment, or the entire fixing part of the crimp terminal 1 is formed in a case shape. Insulation has been achieved by covering with the insulating component 7 of the above.

  However, in such a conventional insulation process, it takes enormous work man-hours and material costs to attach the heat-shrinkable tube 5 and the insulating component 7, and also enormously when the crimp terminal 1 is removed by changing the wiring or the like. Work man-hours occurred.

  Conventionally, the crimping portion 9 of the crimp terminal 1 is covered with a cylindrical insulating cover 11 formed of vinyl chloride or the like, and is crimped together with the crimping portion 9 when the wire 13 is connected. When heat is applied at the time of attaching 5, the insulation cover 11 of the caulking portion 9 returns to the original shape due to the heat, and there is a drawback that it appears as if the caulking work is not normally performed. In the figure, 15 is a breaker.

On the other hand, in Patent Document 1, as shown in FIGS. 11 to 13, as shown in FIGS. 11 to 13, a contact plate 21 attached to the lower surface of the crimping portion 19 of the crimp terminal 17, and a pair of locking pieces extending upward from both sides of the corresponding plate 21. 23, a top wall 27 that covers the upper surface side of the crimp terminal 17, and a side of the crimp terminal 17 that extends from the periphery of the top wall 27 from the outside of the latch piece 23. A side wall 29 that covers the periphery is integrally formed, and includes a cap body 31 that is attached from the upper surface side of the crimp terminal 17, and a pair of locking holes 33 into which the locking pieces 23 can be inserted. The crimp terminal 17 is provided with a plurality of engaging projections 35 that engage the peripheral edge of the locking hole 33 and lock the cap body 31 when the locking piece 23 is inserted into the locking hole 33. The cap 37 is disclosed.
Japanese Patent No. 3361711

  However, since the cap 37 is composed of two members, that is, a cap locking member 25 and a cap body 31 which are separate members from the crimp terminal 17, these must be prepared separately for mounting to the crimp terminal 17. In addition, parts management is troublesome, and there is still a problem that it takes time and effort for installation.

  In addition, there is a possibility that the cap 37 may be detached due to external force such as vibration, and when the installation environment such as high temperature and high humidity is severe, if the cap 37 is removed, dust or dust may be applied to the exposed electrode portion 39 of the crimp terminal 17. Etc., causing corrosion and poor contact.

  The present invention has been devised in view of such circumstances, and eliminates the need for a conventional heat-shrinkable tube, case-like insulating parts, the cap, etc. An object of the present invention is to provide an insulation cover for a crimp terminal that can be easily attached and detached.

In order to achieve such an object, the invention according to claim 1 includes a cylindrical insulating coating portion that is attached to a crimped portion of a crimp terminal, and a frame body that is integrally formed with the insulating coating portion and surrounds the electrode portion of the crimp terminal. And a lid body that is integrally formed on the distal end side of the frame body and opens and closes the upper portion of the frame body, and the lid body is deployed flush with the distal end side of the frame body when the frame body is opened. In addition, a C-shaped locking claw that can be freely engaged and disengaged is formed on the outer periphery of the wire connected to the crimp terminal, and the locking claw is locked to the outer periphery of the wire. lid closes the upper, characterized in Rukoto been fixed.

The invention according to claim 2, At a insulating cover of the crimp terminal according to claim 1, prior to use of the crimp terminal, said insulating coating portion is not Toritsui integrally with the crimped portion of the crimp terminal Rukoto It is characterized by.

According to the first aspect of the invention, the cover of the insulating cover that is attached to the crimp terminal is expanded upward to expose the electrode portion, and this is fixed to the terminal block or the like with the fixing screw, or the fixing screw is simply removed. This makes it possible to attach and remove the electrode part .
Then, cover the lid, lock the claw on the outer periphery of the wire , and fix the lid by completing the insulation process of the electrode part. Compared with a heat shrinkable tube or the like, the insulating cover has a significantly improved workability in the insulation process, and the material cost can be eliminated at a lower cost, and there is no troublesome part management.
In addition, since the lid is fixed by locking the locking claw to the outer periphery of the wire, the lid does not shift even when external force is applied due to vibration, etc., and the installation environment such as high temperature and humidity is severe However, it is possible to protect the electrode portion from adhesion of dust and dust, and it is possible to prevent problems due to corrosion, poor contact, etc. over a long period of time.
Further, since the lid is configured to be flush with the frame when the frame is opened, for example, even if there is no gap between the side wall of the terminal block and the front end of the frame, There is an advantage that the fixing screw can be easily tightened / removed without hindering the opening.

According to the second aspect of the present invention, since the insulating cover is integrally attached to the crimp terminal in advance, it is not necessary to attach the insulating cover to the crimp terminal and the workability is improved.
In addition, since the insulating cover is integrally attached to the crimped terminal crimping portion via the insulating coating portion, the insulating cover may be displaced from the crimping terminal even when an external force is applied due to vibration or the like. In addition, even when the installation environment such as high temperature and high humidity is severe, it is possible to protect the electrode portion from the adhesion of dust and dust, and it is possible to prevent problems due to corrosion, poor contact, etc. over a long period of time.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

Figure 1 through 7 show a first embodiment of the insulation cover of the crimp terminal according to claim 1 and claim 2, the insulating cover 41 comprises a cylindrical insulating coating portion 47 which attaches to the crimping portion 45 of the crimp terminal 43 A frame body 51 that is integrally formed with the insulation coating portion 47 and surrounds the electrode portion (screwing portion) 49 of the crimp terminal 43; and an upper portion of the frame body 51 that is integrally formed with the distal end side of the frame body 51. The lid 53 is opened and closed, and these are integrally formed of polyvinyl chloride that is hard to the extent that the insulating cover 47 can be crimped together with the crimped portion 45.

  As shown in FIG. 1, the frame 51 has a vertical width surrounding the outer periphery of the thin electrode portion 49 and is formed in a planar shape like a shogi piece, and is open at the top and bottom. As shown in FIGS. 1 to 4, the left and right side surfaces 55, 57 of the frame body 51 arranged in a plan view from the insulating coating portion 47 have a width dimension shorter than the outer diameter of the insulating coating portion 47. The left and right opposing side surfaces 59 and 61 connected to the side surfaces 55 and 57 are formed in such a manner that the upper portions 63 and 65 are inclined gradually toward the distal end side of the frame body 51 and are gradually increased in width. . The lid 53 is integrally formed on the top of the front end side surface 67 of the frame 51.

  As shown in FIGS. 1 to 5, the lid 53 is a flat and thin plate formed along the outer shape of the frame 51, and the lid 53 is an open of the frame 51 as shown in FIG. 2. Sometimes it is deployed flush with the side surface 67.

  The left and right side edges of the lid 53 are provided with side surfaces 69 and 71 that contact the side surfaces 55, 57, 59, and 61. The lid 53 is covered with the frame as shown in FIGS. When the upper portion of the body 51 is closed, the lid 53 is arranged in parallel with the lower edge 73 of the frame 51.

  Further, as shown in the figure, a strip-shaped connecting piece 75 is integrally formed on the lid 53 in the direction opposite to the side surface 67. At the tip of the connecting piece 75, a C-shaped locking claw 79 is provided on the outer periphery of the wire 77 connected to the crimp terminal 43 so as to be detachable from the front, and as shown in FIGS. When the upper portion of the frame 51 is closed with the body 53 and the locking claw 79 is locked to the outer periphery of the wire 77, the lid 53 is fixed with the frame 51 closed, and the locking claw 79 is lightly moved. When the locking state between the wire 77 and the locking claw 79 is released by spreading it, the lid 53 is easily opened as shown in FIG.

  And although not shown in figure, the label to wiring can be stuck now on the surface of the said cover body 53, and it can respond now easily by changing a label even if a wiring destination changes.

  The insulating cover 41 according to this embodiment is configured as described above, and as shown in FIGS. 1 to 3, the crimping portion 45 is mechanically press-fitted into the insulating coating portion 47 to use the crimp terminal 43. The insulating cover 41 is integrally attached to the crimp terminal 43 in advance.

  Then, although not shown, the metal wire is exposed from the outer skin at the tip, and the wire 77 is inserted from the rear end side (counter electrode insulating portion side) of the insulation coating portion 47, and the tip metal wire is connected to the crimping portion 45 of the crimp terminal 43. After the insertion, if the insulation coating portion 47 and the crimping portion 45 are crimped, the wire 77 is connected to the crimp terminal 43 with the insulation cover 41.

  Thereafter, when the crimp terminal 43 is connected to, for example, a terminal block, the lid 53 is opened to expose the electrode portion 49 as shown in FIGS. 1 to 3, and the electrode portion 49 is fixed to the terminal block with a fixing screw. As shown in FIG. 2, since the lid 53 is deployed flush with the side surface 67 of the frame 51 when the frame 51 is opened, the gap between the side wall of the terminal block and the front end side of the frame 51 is sufficient. Even if there is no gap, the lid 53 will not be disturbed.

  After the fastening screws are tightened, the upper portion of the frame 51 is closed with the lid 53 and the locking claw 79 is locked to the outer periphery of the wire 77. As shown in FIGS. With the lid closed, the lid 53 is fixed, and the lid 53 insulates the electrode portion 49. Since the lid 53 is fixed in this manner, the insulating cover 41 is integrally attached to the crimping portion 45 of the crimp terminal 43. Therefore, even if an external force is applied due to vibration or the like, the insulating cover 41 or The lid 53 is not displaced and the insulating cover 41 is not detached from the crimp terminal 43.

  Also, when the crimp terminal 43 is removed, after the locking claw 79 is lightly expanded to release the locked state between the wire 77 and the locking claw 79, the lid 53 is expanded upward, and the electrode The fixing screw may be removed by exposing the portion 49.

  And when removing the crimp terminal 43 by wiring change etc., it can respond by reattaching the label stuck on the surface of the lid 53.

  Thus, by using the crimp terminal 43 to which the insulating cover 41 according to the present embodiment is integrally attached in advance, the conventional heat-shrinkable tube 5 and the case-shaped insulating component 71 shown in FIG. Since the insulating cover 41 is less expensive than the tube 5 and the insulating component 71, the material cost can be eliminated.

  In addition, as described above, since the insulating cover 41 is integrally attached to the crimp terminal 43 in advance, it is not necessary to attach the insulating cover 41 to the crimp terminal 43 and the workability is improved.

  Then, the lid 53 of the insulating cover 41 attached to the crimp terminal 43 is unfolded upward to expose the electrode portion 49, and the electrode portion 49 is simply fixed to the terminal block or the like with a fixing screw or simply removed. A heat shrinkable tube was used such that the insulation treatment of the electrode portion 49 was completed by simply attaching the lid 53 and covering the outer periphery of the wire 77 with the locking claw 79. The workability of the insulation process is significantly improved as compared with the conventional insulation process, and the insulation cover 41 can be reduced in material cost at a lower cost than the heat shrinkable tube, and there is no troublesome part management.

  Further, the locking claw 79 is locked to the outer periphery of the wire 77 to fix the lid 53, and the insulating cover 41 itself is integrally attached to the crimped portion 45 of the crimp terminal 43 via the insulating coating portion 47. Even if force is applied from the outside due to vibration or the like, the insulating cover 41 and the lid 53 are not displaced and the insulating cover 41 is not detached from the crimp terminal 43. As a result, even if the installation environment such as high temperature and high humidity is severe, dust It is possible to protect the electrode portion 49 from adhesion of dust and dust, and to prevent problems due to corrosion, contact failure, etc. over a long period of time.

  Furthermore, in this embodiment, since the lid 53 is configured to be flush with the side surface 67 of the frame 51 when the frame 51 is opened, for example, the side wall of the terminal block and the distal end side of the frame 51 are arranged. Even if there is no gap between them, it is possible to easily tighten / remove the fixing screw without hindering the opening of the lid 53, and even if there is a change in wiring, it is stuck on the surface of the lid 53. It is possible to cope by reattaching the label that has been worn, and has the advantage that the workability can be remarkably improved as compared with the conventional case.

8 and 9 show a second embodiment of the insulating cover according to claims 1 and 2 , and the insulating cover 41-1 according to this embodiment has the entire vertical width of the side surface 81 of the frame 51-1. The upper part of the frame 51-1 is formed flat over the circumference, and a side surface 83 that abuts on the side surface 81 is provided at the side edge of the lid 53-1.

  In addition, the insulating cover portion 47 of the insulating cover 41-1 is integrally attached to the crimping portion 45 of the crimp terminal 43, and the locking claw 79 provided on the lid body 53-1 is locked to the outer periphery of the wire 77, and the lid body. Since other configurations such as fixing of 53-1 are the same as those of the insulating cover 41, the same components are denoted by the same reference numerals, and description thereof is omitted.

  Thus, according to the present embodiment, as shown in FIG. 8, the lid 53-1 slightly protrudes toward the distal end side of the insulating cover 41-1 when the lid 53-1 is deployed. It is easier to manufacture than

  The insulating cover 41-1 can achieve the intended purpose as in the embodiment, and the workability of the insulation process is significantly improved as compared with the conventional insulation process using the heat-shrinkable tube. Have advantages.

It is a whole perspective view of the insulating cover which concerns on 1st embodiment of Claim 1 and Claim 2 which opened the cover body. It is a side view of the insulating cover which opened the cover. It is a whole perspective view of the insulating cover which opened the cover. It is a side view of the insulating cover which closed the cover. It is a whole perspective view of the insulating cover which closed the cover. It is a whole perspective view by the side of the bottom of an insulating cover which closed a lid. It is a bottom view of the insulating cover which closed the cover. It is a side view of the insulating cover which concerns on 2nd embodiment of Claim 1 and Claim 2 which opened the cover body. It is a side view of the insulating cover which closed the cover. It is a perspective view of the insulation method of the electrode part of the conventional crimp terminal. It is a disassembled perspective view of the cap of the conventional crimp terminal. It is a disassembled perspective view which shows the attachment method of a cap. It is a disassembled perspective view of the cap attached to a crimp terminal.

Explanation of symbols

41, 41-1 Insulation cover 43 Crimp terminal 45 Caulking part 47 Insulation coating part 49 Electrode part 51, 51-1 Frame body 53, 53-1 Cover body 55, 57, 59, 61, 67, 69, 71, 81, 83 Side 75 Connection piece 77 Wire material 79 Locking claw

Claims (2)

A cylindrical insulation covering portion to be attached to the crimped portion of the crimp terminal;
A frame that is integrally formed with the insulating coating and surrounds the electrode portion of the crimp terminal;
It is integrally formed on the front end side of the frame body, and comprises a lid body that opens and closes the upper part of the frame body,
The lid body is deployed flush with the front end side of the frame body when the frame body is opened,
The lid is formed with a C-shaped locking claw that is detachable from the front of the wire connected to the crimping terminal, and the locking claw is locked to the outer periphery of the wire. is fixed lid was closed is insulation cover of the crimp terminal according to claim Rukoto. Prior to use of the crimp terminal, the insulating cover of the crimp terminal according to claim 1 wherein the insulating coating part is characterized that you have Toritsui integrally with the crimped portion of the crimp terminal.

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