JP5514499B2 - Fusible part cover of fuse unit - Google Patents

Description

  The present invention relates to a fusible part cover of a fuse unit.

  A vehicle is equipped with a fuse unit for preventing overcurrent from being supplied from a power source to a load (see Patent Document 1). The type of the fuse unit is not single, but a plurality of types according to the requirements for mounting on the vehicle, and the fuse unit is selected and used. The fuse unit is provided with a fusible portion, and the number of fusible portions and the like are usually different depending on the type of the fuse unit. For example, the fuse unit 100A shown in FIGS. 9 and 10 has a large number of the fusible parts 101 arranged in parallel, and the other fuse unit 100B shown in FIGS. 11 and 12 has only a single fusible part 101. It is something that does not.

  Here, the fusible part 101 is exposed by the window part 102 so that the presence or absence of fusing can be visually confirmed, and both sides of the window part 102 are soluble part covers for preventing entry of water, dust and the like. It is blocked by 110A and 110B. In the fuse unit 100A shown in FIGS. 9 and 10, a straight soluble portion cover 110A is used, and the two sides of the window portion 102 are closed by two soluble portion covers 100A. In another fuse unit 100B shown in FIGS. 11 and 12, a U-shaped fusible part cover 110B is used, and both sides of the window part 102 are closed by one fusible part cover 110B.

  As described above, conventionally, the fusible part covers 110A and 110B having different forms are used for each type of the fuse units 100A and 100B.

JP 2009-56992 A

  However, if the fusible portion covers 110A and 110B are used separately for each type of the fuse units 100A and 100B, there is a problem that the manufacturing cost (for example, mold cost), component management cost, and the like increase, resulting in a high cost.

  Accordingly, the present invention has been made to solve the above-described problems, and an object thereof is to provide a fusible part cover of a fuse unit that can be used for a plurality of types of fuse units and can reduce costs. To do.

  The invention according to claim 1 is a fusible part cover of a fuse unit that closes both sides of the window part exposing the fusible part, and is provided with a plurality of hinge parts at intervals in the length direction. It can be bent at the position of the part.

  Invention of Claim 2 is a soluble part cover of the fuse unit of Claim 1, Comprising: The said hinge part is provided in two places in the left-right symmetrical position of the length direction, It is divided into two first covering surface portions located on both outer sides and two covering surface portions positioned between the two hinge portions.

  The invention according to claim 3 is the fusible part cover of the fuse unit according to claim 2, wherein the first fuse unit has a large total width dimension of the window part, and the second has a small total width dimension of the window part. The overall length dimension is set to the total width dimension of the window portion of the first fuse unit, and the length dimension of the first covering surface portion is the same as that of the second fuse unit. The total width dimension of the window part is set, and the length dimension of the second covering surface part is set to a depth dimension between both surfaces of the window part of the second fuse unit. .

  A fourth aspect of the present invention is the fusible portion cover of the fuse unit according to any one of the first to third aspects, wherein a locking portion is provided on each side surface of the fuse unit, and the pair of locking portions Are arranged at positions that do not interfere with each other in the vertical direction.

  According to the first aspect of the present invention, the fusible part cover is generally straight in a straight shape without being bent at the hinge part, and is folded at the desired hinge part as a whole. You can change the form. Therefore, the two sides of the window part are closed using two fusible part covers having a straight form, or the both sides of the window part are closed using one fusible part cover having a U-shaped form. You can. From the above, it is possible to cope with a plurality of types of fuse units with one type of fusible part cover, and to reduce the cost.

  According to the invention of claim 2, the same effect as that of the invention of claim 1 can be obtained.

  According to the invention of claim 3, for the fuse unit having a window portion having the same overall width as the length of the straight portion of the fusible portion cover, the two sides of the window portion are used by using two fusible portion covers. For a fuse unit having a window portion having the same overall width as the width of the U-shaped fusible portion cover, the both sides of the window portion are covered with one fusible portion cover. Can be occluded accurately.

  According to the invention of claim 4, in addition to the effects of the inventions of claims 1 to 3, even when both of the fusible part covers are formed in a straight form and both sides of the window part are closed, one sheet is acceptable. Even when the both-sides of the window portion are closed by using the melted portion cover in a U-shape, it can be mounted without overlapping the positions of the locking portions at both ends.

FIG. 4 is a perspective view of the first fuse unit before the fusible portion cover is mounted according to the embodiment of the present invention. It is a perspective view of the 1st fuse unit after showing one embodiment of the present invention and attaching a soluble part cover. FIG. 3 shows an embodiment of the present invention and is an enlarged view of part A in FIG. 2. It is a perspective view of the 2nd fuse unit before showing an embodiment of the present invention and attaching a fusible part cover. It is a perspective view of the 2nd fuse unit after showing one embodiment of the present invention and attaching a soluble part cover. FIG. 6 shows an embodiment of the present invention and is a view on arrow B in FIG. 5. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 shows an embodiment of the present invention, in which (a) is a perspective view of a fusible part cover having a straight shape, and (b) is a perspective view of the fusible part cover having a U-shaped form. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 shows an embodiment of the present invention, in which (a) is a rear view of a fusible part cover, (b) is a bottom view of the fusible part cover, and (c) is a front view of the fusible part cover. It is a perspective view of the fuse unit before mounting | wearing with the 1st soluble part cover of a prior art example. It is a perspective view of the fuse unit after attaching the 1st fusible part cover of the conventional example. It is a perspective view of the other fuse unit before mounting | wearing with the 2nd soluble part cover of a prior art example. It is a perspective view of the other fuse unit after mounting the 2nd soluble part cover of a prior art example.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

  1 to 8 show an embodiment of the present invention. 1 is a perspective view of the first fuse unit 1A before mounting the fusible part cover 10, FIG. 2 is a perspective view of the first fuse unit 1A after mounting the fusible part cover 10, and FIG. 4 is an enlarged view of a portion A, FIG. 4 is a perspective view of the second fuse unit 1B before the fusible portion cover 10 is mounted, and FIG. 5 is a diagram of the second fuse unit 1B after the fusible portion cover 10 is mounted. 6 is a perspective view of the fusible part cover 10 having a straight shape, and FIG. 7B is a fusible part cover 10 having a U-shaped form. 8A is a rear view of the fusible part cover 10, FIG. 8B is a bottom view of the fusible part cover 10, and FIG. 8C is a front view of the fusible part cover 10. FIG. .

  As shown in FIGS. 1 and 2, the first fuse unit 1 </ b> A includes a bus bar 2 formed of a conductive member, and an insulation protection portion 3 that is insert-molded with the bus bar 2 as an internal component.

  The bus bar 2 is provided with a plurality of terminal portions 2a connected to the power supply side or connected to the load side. The bus bar 2 is provided with a plurality of fusible portions 4 interposed between the power source side and the load side terminals 2a. The some soluble part 4 is arrange | positioned in the parallel position. The insulating protection part 3 is provided with a window part 5 for exposing each soluble part 4. The total width of the plurality of window portions 5 is L1. Both surfaces of the plurality of window portions 5 are closed by two fusible portion covers 10. The configuration of the fusible part cover 10 will be described in detail below.

  Moreover, the to-be-latched part 6 is provided in the outer surface of the window part 5 located in both ends, respectively. The locked portions 6 are provided at two positions in the vertical position.

  As shown in FIGS. 4 and 5, the second fuse unit 1 </ b> B has the same basic configuration as the first fuse unit 1 </ b> A, and includes a bus bar 2 and an insulation protection unit 3. The bus bar 2 is provided with a plurality of fusible portions 4 interposed between the power source side and the load-side terminals 2a. The plurality of fusible portions 4 are arranged in parallel, but the number thereof is smaller than that of the first fuse unit 1A. The insulating protection part 3 is provided with a window part 5 for exposing each soluble part 4. The total width of the plurality of window portions 5 has an L2 dimension that is less than half that of the first fuse unit 1A. The depth between both surfaces of the window part 5 is L3 dimension. The plurality of window portions 5 are closed by the same fusible portion cover 10 as that of the first fuse unit 1A. However, the number of the soluble part covers 10 to be used is one.

  Further, as shown in detail in FIG. 6, a locked portion 6 is provided on the outer surface of one of the window portions 5 at both ends. The locked portions 6 are provided at two positions in the vertical position.

  Next, the soluble part cover 10 will be described. As shown in FIGS. 7A and 7B and FIGS. 8A to 8C, the fusible part cover 10 is integrally formed of a light-transmitting resin material, and the elongated belt-like part 11 and this It is composed of a pair of locking portions 20 extending in the orthogonal direction from the side surfaces of both ends of the belt-like portion 11.

  The belt-like portion 11 is provided with hinge portions 12 at two positions with a gap in the length direction. The two hinge portions 12 are disposed at symmetrical positions in the length direction of the belt-like portion 11. The belt-like portion 11 can be bent at the position of each hinge portion 12. Each hinge part 12 can be produced at the time of injection molding of the fusible part cover 10 or can be produced by post-processing after injection molding. The belt-like portion 11 is divided into two first covering surface portions 13 positioned on both outer sides of the two hinge portions 12 and a single second covering surface portion 14 positioned between the two hinge portions 12. ing.

  A pair of latching | locking part 20 is a case of the U-shaped form of the soluble part cover 10, Comprising: It arrange | positions in the position which does not mutually interfere.

  Each dimension of the strip | belt-shaped part 11 is set as follows. The overall length dimension of the belt-like part 11 is the total width dimension L1 of the plurality of window parts 5 of the first fuse unit 1A. The length dimension of the 1st covering surface part 13 is the total width dimension L2 of the some window part 5 of the 2nd fuse unit 1B. The length dimension of the 2nd coating | coated surface part 14 is the depth dimension L3 between both surfaces of the window part 5 of the 2nd fuse unit 1B.

  Next, a procedure for closing the window portion 5 of the soluble portion 4 using the soluble portion cover 10 will be described. When attaching to the window portion 5 of the first fuse unit 1A, two fusible portion covers 10 are used. As shown in FIG. 7A, the two fusible portion covers 10 have a straight shape as a whole without bending the second covering surface portion 14 at the hinge portion 12 with respect to the first covering surface portion 13. One soluble part cover 10 in a straight form is fitted to one side of the window part 5, and the other one soluble part cover 10 is fitted to the other side of the window part 5. Then, as shown in detail in FIG. 3, the engagement is completed when the engaging portions 20 at both ends of each fusible portion cover 10 are respectively engaged with the engaged portions 6.

  When mounting on the window portion 5 of the second fuse unit 1B, one fusible portion cover 10 is used. As shown in FIG. 7B, one fusible part cover 10 is bent at each hinge part 12 to form a U-shape, so that one first covering surface part 13 is one side of the window part 5. In addition, the other first covering surface portion 13 is aligned with the other surface of the window portion 5. And as shown in FIG. 6, if the latching | locking part 20 of the both ends of the soluble part cover 10 is latched to the to-be-latched part 6, it will be completed.

  As described above, the fusible portion cover 10 is provided with the hinge portions 12 at two positions at intervals in the length direction, and can be bent at the positions of the hinge portions 12. Accordingly, the form of the fusible part cover 1 can be changed into a straight straight form as a whole without being folded at the hinge part 2 and a U-shaped form as a whole when folded at the hinge part 2. . Therefore, as described above, the two sides of the window portion 5 are closed using the two fusible portion covers 10 having a straight shape, or the single fusible portion cover 10 having a U-shape is used. The both sides of the window 5 can be closed. From the above, it is possible to cope with a plurality of types of fuse units 1A and 1B with one type of fusible part cover 10 and to reduce costs.

  In this embodiment, the hinge portion 12 is provided at two locations spaced in the length direction, but may be provided at three or more locations. If comprised in this way, since the hinge part 12 bent according to the kind of fuse unit 1A, 1B can be changed, versatility improves. Moreover, it is preferable that the installation position of the hinge portion 12 is appropriately changed according to the type of the fuse unit. From the above, versatility can be improved by the installation position and the number of installation of the hinge part 5.

  Used for the first fuse unit 1A having a large total width dimension of the window portion 5 and the second fuse unit 1B having a small total width dimension of the window portion 5, and the overall length dimension of the fusible portion cover 10 is The total width dimension L1 of the window portion 5 of the first fuse unit 1A is set, and the length dimension of the first covering surface portion 13 is set to the total width dimension L2 of the window portion 5 of the second fuse unit 1B. The length dimension of the covering surface portion 14 is set to a depth dimension L3 between both surfaces of the window portion 5 of the second fuse unit 1B. Therefore, as described above, both sides of the window portion 5 can be accurately closed using the two fusible portion covers 10 for the first fuse unit 1A, and for the second fuse unit 1B. It is possible to accurately close both sides of the window portion 5 by using one soluble portion cover 10.

  The fusible portion cover 10 is provided with locking portions 20 on the side surfaces at both ends, and the pair of locking portions 20 are U-shaped and are disposed at positions that do not interfere with each other. Therefore, even when the two fusible part covers 10 are both in a straight form and the both sides of the window part 5 are closed, the one fusible part cover 10 is in a U-shaped form and the both sides of the window part 5 are closed. Even in this case, the positions of the locking portions 20 at both ends can be mounted without overlapping.

1A 1st fuse unit 1B 2nd fuse unit 4 fusible part 5 window part 10 fusible part cover 12 hinge part 13 first covering surface part 14 second covering surface part 20 locking part

Claims (4)

It is a fusible part cover of a fuse unit that closes both sides of the window part exposing the fusible part,
A fusible portion cover for a fuse unit, wherein a plurality of hinge portions are provided at intervals in the length direction and can be bent at the position of each hinge portion. A fusible portion cover of the fuse unit according to claim 1,
The hinge part is provided at two symmetrical positions in the length direction, and between the two first covering surface parts located on both outer sides of the two hinge parts and the two hinge parts. A fusible portion cover for a fuse unit, characterized in that the fusible portion cover is divided into a second covering surface portion. A fusible part cover for a fuse unit according to claim 2,
Used for a first fuse unit having a large total width dimension of the window portion and a second fuse unit having a small total width dimension of the window portion;
The overall length dimension is set to the total width dimension of the window portion of the first fuse unit, and the length dimension of the first covering surface portion is the total width dimension of the window portion of the second fuse unit. And the length dimension of the second covering surface part is set to the depth dimension between both surfaces of the window part of the second fuse unit. . A fusible part cover for a fuse unit according to any one of claims 1 to 3,
A fusible part cover for a fuse unit, characterized in that a locking part is provided on each side of both ends, and the pair of locking parts are arranged at positions that do not interfere with each other in the vertical direction.

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