JP2009110856A - Support structure of fusible link unit - Google Patents

Abstract

In a fusible link unit (4) attached to a battery (2), there is provided a support structure (1) for a fusible link unit that improves workability at the time of attachment and reliably prevents vibration after being attached.
A fusible link unit support structure (1) supports a fusible link unit (4) attached to a battery (2). The fusible link unit support structure 1 includes a body member 11, a battery 2 fixed to the body member 11, and a fusible link unit 4 attached to a battery post 22 of the battery 2. The fusible link unit 4 is connected to the fusible link main body 41 and the fusible link main body 41. When the fusible link unit 4 is attached to the battery 2, the fusible link unit 4 comes into contact with the body member 11 and elastically deforms to elastically restore force. And a bracket 6 for pressing the body member 11 is provided.
[Selection] Figure 4

Description

  The present invention relates to a support structure for a fusible link unit including a fixed part, a battery fixed to the fixed part, and a fusible link unit attached to a battery post of the battery.

  A vehicle as a moving body is equipped with a battery as a power supply source for supplying electric power to various electronic devices mounted on the vehicle body. The battery and the electric wire connected to the electronic device or the like are electrically connected, for example, via a fusible link unit (fuse unit), and power from the battery is supplied to the electronic device or the like (for example, a patent) Reference 1). The fusible link unit distributes the electric power from the battery to each electronic device or the like and prevents excessive electric power from being supplied to the electronic device or the like.

  The fusible link unit shown in Patent Document 1 is formed in an approximately L-shape as a whole, and includes a mounting portion disposed on the upper surface of the battery, a housing disposed so as to face the side surface of the battery, and one end portion Is housed in the attachment portion and electrically connected to the battery post of the battery, and the other end portion is housed in the housing and includes a fuse body electrically connected to the electric wire.

The attachment portion is attached to the battery post via the battery terminal, and the fusible link unit and the battery are electrically connected. The battery terminal includes a stud bolt that passes through a through hole that passes through the attachment portion and one end of the fuse body, and a hole that passes the battery post. The lower end of the housing is open, and the other end of the fuse body protrudes to form a female connector. The female connector is engaged with the male connector attached to the end of the electric wire, and the fusible link unit and the electric wire are electrically connected.
JP 2005-116309 A

  However, since the housing of the fusible link unit is not supported by a battery or the like, if the weight of the fusible link unit increases due to an increase in the number of circuits distributed from the battery, it is concentrated on the battery post and the battery terminal. There is a problem that the housing is vibrated by vibration or impact generated when it is mounted on the vehicle body and the battery post or the battery terminal is broken. In addition, the fusible link unit may rotate around the battery post and the stud bolt and collide with other parts disposed in the vicinity of the fusible link unit due to the vibration and impact described above.

  Also, the wires are connected to a housing that is not supported by a battery or the like. However, as the number of wires increases as described above, the rigidity of these wires increases and the fusible link unit Pushing force (force that pushes up the fusible link from the upper surface of the battery or rotates it around the battery post or stud bolt) is applied, so the operator holds the fusible link unit in the normal position during installation work. However, there was a problem that workability at the time of installation was lowered. Further, even after the fusible link unit is attached to the battery, the above-described push-up force may be applied to the battery post and the battery terminal, and the battery post and the battery terminal may be broken.

  The present invention aims to solve such problems. That is, the present invention provides a fusible link unit support structure for improving the workability at the time of attachment and reliably preventing vibration after being attached in a fusible link unit attached to a battery. It is said.

  In order to solve the problems and achieve the object, the invention described in claim 1 includes a fixed part, a battery fixed to the fixed part, and a fusible link unit attached to a battery post of the battery. And the fusible link unit is connected to the fusible link main body, the fusible link main body, and the fusible link unit is attached to the battery. A fusible link unit support structure comprising an elastic portion that abuts against a fixed portion and elastically deforms to generate an elastic restoring force and presses the fixed portion.

  According to a second aspect of the present invention, in the fusible link unit support structure according to the first aspect, the elastic portion includes a detachable portion detachably attached to the fusible link main body. It is a support structure of a fusible link unit.

  According to a third aspect of the present invention, in the fusible link unit support structure according to the second aspect, the elastic portion is connected to the detachable portion, and the fusible link unit is attached to the battery. The fusible link unit is provided with an elastic piece that generates an elastic restoring force in a direction crossing the direction in which the fusible link unit approaches the battery.

  According to a fourth aspect of the present invention, in the support structure for the fusible link unit according to the third aspect, the elastic portion is connected to the detachable portion, and the fusible link unit is attached to the battery. And a second elastic piece for pressing the battery by elastically deforming in contact with the battery and generating an elastic restoring force.

  According to the first aspect of the present invention, the fusible link unit is connected to the fusible link main body and the fusible link main body, and comes into contact with the fixed portion when the fusible link unit is attached to the battery. Since it has an elastic part that elastically deforms to generate an elastic restoring force and presses the fixed part, the fusible link unit can be fixed to the battery while the fusible link unit is supported by the elastic part, It is not necessary for the operator to hold the fusible link unit in the normal position during the installation work, and the workability during the installation can be improved. In addition, even after the fusible link unit is attached to the battery, the fusible link unit will not rattle or rotate due to vibration, etc., and the battery post etc. may break or the fusible link unit may collide with other parts. Can be prevented. In addition, by using an elastic portion that is elastically deformed more than the variation in the fixing position of the battery fixed to the fixed portion, it is possible to absorb the variation in the fixing position of the battery and reliably support the fusible link unit.

  According to the second aspect of the present invention, since the elastic part includes the detachable part that is detachable from the fusible link main body, the elastic part is shared between the fixed part and the battery by sharing the fusible link main body. The cost can be reduced by appropriately changing to the one that reliably contacts the fixed portion according to the interval.

  According to the invention described in claim 3, the elastic portion is connected to the attaching / detaching portion, and the elasticity in the direction intersecting the direction in which the fusible link unit approaches the battery when the fusible link unit is attached to the battery. Since it has an elastic piece that generates a restoring force, the elastic piece can reliably support the fusible link unit by pressing the fixed part while keeping the distance between the fusible link unit and the battery constant. it can.

  According to the invention described in claim 4, when the elastic portion is connected to the detachable portion and the fusible link unit is attached to the battery, the elastic portion comes into contact with the battery and elastically deforms to generate an elastic restoring force, thereby Since the second elastic piece to be pressed is provided, the fusible link unit is more reliably supported by the elastic piece and the second elastic piece. In addition, the range of elastic deformation of the elastic part is expanded to make it easier to cope with variations in the battery fixing position, and the allowable range of processing accuracy such as a fixing member for fixing the battery to the fixed part is expanded, thereby reducing costs. Can be planned.

  A fusible link unit support structure 1 according to a first embodiment of the present invention will be described below with reference to FIGS. The fusible link unit support structure 1 according to the first embodiment of the present invention is a structure that supports a fusible link unit 4 attached to a battery 2 as shown in FIGS. 2 and 3. As shown in FIG. 1, the support structure 1 of the fusible link unit includes a body member (corresponding to a fixed portion) 11, a battery 2, a battery terminal 3, and a fuse. The bull link unit 4 and the cover 13 (FIG. 3) are provided.

  As shown in FIG. 3, the battery 2 is fixed to the body member 11 by a tray 12. The tray 12 includes a bottom wall 12a and a peripheral wall 12b erected from the outer edge of the bottom wall 12a, and is formed in a bottomed rectangular tube shape. The battery 2 is accommodated in the tray 12 and the tray 12 is fixed to the body member 11, whereby the battery 2 is fixed to the body member 11.

  As shown in FIG. 1 and the like, the battery 2 includes at least a storage case 21 and a pair of battery posts 22a and 22b. The housing case 21 is formed from an insulating synthetic resin or the like. The housing case 21 includes a substantially flat upper lid portion 21a and a bottomed cylindrical case body 21b. The upper lid 21a is attached to the opening of the case main body 21b, and the housing case 21 is assembled. A plurality of cell plates and the like that are electrically connected to each other are housed inside the housing case 21.

  The battery posts 22a and 22b are formed in a substantially cylindrical shape. The battery posts 22 a and 22 b penetrate the upper lid portion 21 a and protrude from the upper surface 2 a of the battery 2. The battery posts 22a and 22b are electrically connected to the cell plates located at both ends of the plurality of cell plates that are arranged at one end outside the housing case 21 and at the other end inside the housing case 21 and housed in the housing case 21. Connected. A battery terminal 3 is attached to one end of one battery post 22a (hereinafter simply referred to as battery post 22), and the fusible link unit 4 is attached via the battery terminal 3.

  The fusible link unit 4 is disposed over the upper surface 2a and the side surface 2b of the battery 2 having the above-described configuration. The side surface 2c orthogonal to the side surface 2b of the battery 2 is provided with a recess 23 (FIG. 3) in which a locking projection 63a (described later) of the fusible link unit 4 is engaged.

  The battery terminal 3 is formed by bending a conductive sheet metal or the like. As shown in FIG. 1, the battery terminal 3 includes a terminal main body 31, a battery hole 32, a bolt 33 and a nut 34, and a stud bolt 35. The terminal body 31 includes a pair of flat plate portions 31 a and 31 b, a connecting portion 36 that connects one end portions of the flat plate portions 31 a and 31 b in the longitudinal direction, and an engaging claw 37.

  The pair of flat plate portions 31a and 31b are formed in a flat plate shape, and are parallel to each other and spaced apart from each other. When the battery terminal 3 is attached to the battery 2, the pair of flat plate portions 31a and 31b are arranged in parallel with the upper surface 2a of the battery 2, and one flat plate portion 31a is arranged on the side away from the upper surface 2a and the other flat plate portion The part 31b is arranged closer to the upper surface 2a. The connecting portion 36 has a U-shaped cross section. A gap for dividing the connecting portion 36 is formed at the center in the longitudinal direction of the connecting portion 36.

  The engaging claws 37 are provided at both ends in the width direction of the pair of flat plate portions 31a and 31b, respectively. The engaging claws 37 protrude in directions toward each other from opposite end portions. When the engaging claws 37 are engaged with each other, the pair of flat plate portions 31a and 31b are held parallel to each other and spaced apart from each other.

  The battery hole 32 is provided through the end portion of the pair of flat plate portions 31a and 31b near the connecting portion 36. The battery hole 32 is formed such that a hole penetrating the one flat plate portion 31a communicates with a hole penetrating the other flat plate portion 31b, and the planar shape is formed in a circular shape. The battery post 22 is passed through the battery hole 32.

  The bolt 33 integrally includes a substantially cylindrical shaft portion and a head portion having a rectangular planar shape formed at one end of the shaft portion. A thread groove is formed in the shaft portion. The bolt 33 has a shaft portion accommodated inside the connecting portion 36, and a head portion and a tip end of the shaft portion protrude from the connecting portion 36. The nut 34 is screwed into the tip of the shaft portion protruding from the connecting portion 36. When the nut 34 is screwed into the tip end of the shaft portion, the gap between the head of the bolt 33 and the nut 34 is adjusted, the gap of the connecting portion 36 is adjusted, and the inner diameter of the battery hole 32 is adjusted.

  The stud bolt 35 is integrally provided with a substantially cylindrical shaft portion and a head portion connected to one end of the shaft portion. The shaft portion is passed through a stud bolt hole penetrating the end of one flat plate portion 31a away from the connecting portion 36, the head portion is sandwiched between the pair of flat plate portions 31a and 31b, and the stud bolt 35 is a terminal body. 31 is fixed. When the battery terminal 3 is attached to the battery 2, the shaft portion is disposed so as to protrude from the upper surface 2 a of the battery 2. The stud bolt 35 is passed through a connection hole 44 a (described later) of the fusible link unit 4. Then, the nut 35 a is screwed into the stud bolt 35 passed through the connection hole 44 a, and the fusible link unit 4 is fixed to the battery terminal 3.

  The fusible link unit 4 is formed in a substantially L shape as a whole. As shown in FIG. 4, the fusible link unit 4 includes a fusible link main body 41, a bracket 6 (corresponding to an elastic portion), a cover 81, and a cap 82. The fusible link main body 41 includes a conductor portion 42 and a covering portion 43 that is an insulating coating of the conductor portion 42.

  The conductor part 42 is formed of a conductive sheet metal or the like. The conductor part 42 is insert-molded in the covering part 43. The conductor portion 42 includes a power bus bar 44, a plurality of connection bus bars, and a plurality of fusible bodies that connect the power bus bar 44 and the respective connection bus bars.

  The power bus bar 44 is formed in a flat plate shape, and the planar shape is formed in a substantially rectangular shape. When the fusible link unit 4 is attached to the battery 2, the power bus bar 44 is arranged in parallel with the upper surface 2 a of the battery 2. The power bus bar 44 is provided with a connection hole 44a through which the stud bolt 35 of the battery terminal 3 is passed.

  Each of the connection bus bars is formed in a flat plate shape. When the fusible link unit 4 is attached to the battery 2, the connection bus bar is arranged in parallel with the side surface 2 b of the battery 2. The connection bus bar is provided with a bolt hole into which the connection bolt 45 is screwed. When the fusible link unit 4 is attached to the battery 2, the connection bolt 45 is arranged in a direction protruding from the side surface 2 b of the battery 2. The connection bolt 45 is passed through an attachment hole of a terminal fitting attached to the end of the electric wire 14 and then a nut is screwed to fix the electric wire 14.

  One fusible body is provided for one connection bus bar. The fusible body electrically connects the power bus bar 44 and one connection bus bar. The fusible body integrally includes a pair of connecting pieces and a melted piece disposed between the pair of connecting pieces. As for a pair of connection piece, one connection piece is connected with the power supply bus bar 44, and the other connection piece is connected with one connection bus bar. The molten piece is formed of a metal having a relatively low melting point, and is melted by self-heating when an overcurrent flows through the fusible link unit 4. When the molten piece is blown, the electric connection between the power bus bar 44 and the connection bus bar is cut off, and the electric power from the battery 2 is connected to the fusible link unit 4 (that is, connected to the electric wire 14). It will not be supplied to electronic devices.

  The covering portion 43 is formed of a synthetic resin having a relatively high heat resistance such as a nylon resin. The covering portion 43 is integrally provided with a horizontal portion 51 disposed on the upper surface 2 a of the battery 2 and a hanging portion 52 disposed on the side surface 2 b of the battery 2.

  The horizontal portion 51 covers the power bus bar 44. The horizontal portion 51 is provided with a connection hole 44a of the power bus bar 44 and a notch-shaped exposure window 51a that exposes both surfaces near the connection hole 44a. A heat radiating rib 51b is provided on the outer surface of the horizontal portion 51 away from the battery 2.

  The hanging part 52 covers the connection bus bar and the fusible body. The hanging part 52 includes an exposure window, a plurality of electric wire attaching parts 54, a connector part 55, and a bracket attaching part 56. The exposure window is provided on the outer surface of the hanging portion 52 away from the battery 2 and exposes the vicinity of the melted piece of the soluble body.

  Each of the electric wire attaching portions 54 includes an exposure window that exposes the bolt hole and the vicinity of the bolt hole of one connection bus bar, and a plurality of standing pieces that stand from the periphery of the exposure window. A connection bolt 45 screwed into the bolt hole protrudes inside the electric wire attachment portion 54. The electric wire 14 connected to the connection bolt 45 is disposed in the electric wire attachment portion 54.

  The connector portion 55 is provided at an end portion of the hanging portion 52 in the width direction (lower right to upper left direction in FIG. 4), and opens along the width direction. An end portion of the connection bus bar protrudes into the connector portion 55. The connector portion 55 is fitted with a connector attached to the end of the electric wire 14 to electrically connect the fusible link unit 4 and the electric wire 14.

  The bracket attachment portion 56 is provided on the outer surface facing the bracket 6 at the lower end (end portion away from the horizontal portion 51) of the hanging portion 52. The bracket 6 is attached to the bracket attachment portion 56. The bracket attachment portion 56 includes a pair of ribs 57 and a lock receiving portion.

  The pair of ribs 57 are respectively provided along the thickness direction of the hanging part 52 (upper right to lower left direction in FIG. 4). The pair of ribs 57 are provided in parallel to each other with a space therebetween. The pair of ribs 57 includes a standing portion 57a standing from the outer surface of the hanging portion 52 and an extending portion 57b extending in a direction approaching each other from the tip of the standing portion 57a, and is formed in an L-shaped cross section. Has been.

  The lock receiving portion is provided so as to protrude from the outer surface of the hanging portion 52. The lock receiving portion is provided between the pair of ribs 57 and is provided at approximately the center in the longitudinal direction of the pair of ribs 57. The lock receiving portion engages with a lock protrusion 65 described later of the bracket 6.

  The bracket 6 is made of an insulating synthetic resin or the like. The bracket 6 is separated from the fusible link main body 41 and is attached to the fusible link main body 41. As shown in FIGS. 4 to 7, the bracket 6 integrally includes an attaching / detaching portion 61, an elastic piece 62, and a locking piece 63.

  The detachable part 61 is formed in a substantially prismatic shape. A pair of ribs 64 and a lock protrusion 65 provided between the pair of ribs 64 are provided on the outer surface of the detachable portion 61 facing the fusible link main body 41.

  The pair of ribs 64 are respectively provided along the width direction (left and right direction in FIG. 5) of the attaching / detaching portion 61. The pair of ribs 64 are provided in parallel to each other with a space therebetween. The pair of ribs 64 includes a standing portion 64a standing from the outer surface of the attaching / detaching portion 61 and an extending portion 64b extending in a direction away from the tip of the standing portion 64a, and is formed in an L-shaped cross section. Has been. The thickness of the extending portion 64 b is slightly smaller than the distance between the extending portion 57 b of the pair of ribs 57 of the bracket mounting portion 56 and the outer surface of the hanging portion 52.

  The lock protrusion 65 is provided so as to protrude from the outer surface of the attaching / detaching portion 61. The lock protrusion 65 is provided between the pair of ribs 64, and is provided at approximately the center in the longitudinal direction of the pair of ribs 64. The lock protrusion 65 is provided along a direction orthogonal to the pair of ribs 64.

  The attaching / detaching portion 61 having the above-described configuration is attached to the bracket attaching portion 56 of the fusible link main body 41. The pair of ribs 64 of the attaching / detaching portion 61 are inserted into the space surrounded by the outer surface of the hanging portion 52 and the pair of ribs 57 of the bracket mounting portion 56 from the outer surface side of the hanging portion 52 away from the battery 2. (Indicated by a dashed line arrow in FIG. 4). Thereafter, when the bracket 6 is slid with respect to the fusible link main body 41, the lock protrusion 65 engages with the lock receiving portion of the bracket mounting portion 56, and the bracket 6 moves to the fusible link main body 41 in the insertion direction. It is locked against. As described above, the bracket 6 can be attached to and detached from the fusible link main body 41 by the attaching / detaching portion 61. In the direction opposite to the insertion direction, when the fusible link unit 4 is attached to the battery 2, a locking projection 63a (described later) of the locking piece 63 and a recess 23 of the battery 2 are engaged as shown in FIG. Accordingly, the bracket 6 is locked to the battery 2 (the fusible link body 41 of the fusible link unit 4 attached to the battery 2).

  The elastic piece 62 is connected to the end of the detachable portion 61 in the longitudinal direction (vertical direction in FIG. 5). The elastic piece 62 includes a base portion 62a extending in a direction substantially orthogonal to the longitudinal direction of the attaching / detaching portion 61, a folded portion 62b extending to a direction approaching the attaching / detaching portion 61, and a distal end of the folded portion 62b. And a pressing portion 62c extending in a direction approaching the detachable portion 61, and is formed to be curved in a substantially U-shaped cross section. At the center in the width direction of the base portion 62a, a rib is provided along the longitudinal direction of the base portion 62a, and deformation of the base portion 62a is prevented. The distance between the base portion 62a and the folded portion 62b is provided so as to gradually increase as the distance from the connecting portion between the base portion 62a and the folded portion 62b increases. The distance between the base portion 62a and the pressing portion 62c is substantially constant. The elastic piece 62 is provided to be elastically deformable so that the folded portion 62b and the pressing portion 62c approach the base portion 62a.

  When the bracket 6 is attached to the fusible link main body 41, the elastic piece 62 having the above-described configuration is arranged so as to protrude along the longitudinal direction of the hanging portion 52. When the fusible link unit 4 is attached to the battery 2, the folded portion 62 b and the pressing portion 62 c are arranged so as to face the body member 11. When the fusible link unit 4 is attached to the battery 2, the outer surface of the folded part 62 b comes into contact with the body member 11, and the folded part 62 b and the pressing part 62 c are elastically deformed, and the fusible link unit 4 is attached to the battery 2. When the fusible link unit 4 approaches the battery 2, an elastic restoring force in a direction T <b> 2 (FIG. 2) perpendicular to the direction T <b> 1 (FIG. 1) is generated, and the pressing portion 62 c presses the body member 11.

  The locking piece 63 is provided at the center in the longitudinal direction of the attaching / detaching portion 61 and protrudes from the outer surface of the attaching / detaching portion 61 in a direction orthogonal to the elastic piece 62. At the tip of the locking piece 63, a locking projection 63a protruding in a direction away from the elastic piece 62 is provided. When the fusible link unit 4 is attached to the battery 2, the locking protrusion 63 a engages with the recess 23 of the battery 2.

  As shown in FIG. 4, the cover 81 includes a pair of walls 81a and 81b and a connecting wall 81c that connects one ends of the pair of walls 81a and 81b in the width direction, and is formed in a U-shaped cross section. ing. The cover 81 is attached to the fusible link main body 41 so as to cover the fusible body exposed in the exposure window of the hanging part 52. One wall 81a of the pair of walls 81a and 81b is provided with a plurality of viewing windows 81d that penetrate the one wall 81a and expose the fusible body.

  The cap 82 is formed in a band plate shape as shown in FIG. A plurality of caps 82 are provided corresponding to the respective observation windows 81d, and are formed in substantially the same shape as the observation windows 81d. The cap 82 is attached to the cover 81 so as to cover the viewing window 81d, and prevents dust and the like from entering from the viewing window 81d.

  The cover cover 13 is made of an insulating synthetic resin or the like. As shown in FIG. 3, the cover cover 13 includes an upper wall 13 a and a side wall 13 b that continues to the upper wall 13 a and has an L-shaped cross section. The cover cover 13 is disposed so as to cover the fusible link unit 4 attached to the battery 2, the upper wall 13 a is fixed to the upper surface 2 a of the battery 2, and the side wall 13 b is fixed to the body member 11.

  When attaching the fusible link unit 4 having the above-described configuration to the battery 2 fixed to the body member 11, first, as shown in FIG. Through 35, the nut 35a is screwed halfway to temporarily fix the fusible link unit 4 and the battery terminal 3.

  Then, the fusible link unit 4 to which the battery terminal 3 is temporarily fixed is brought close to the battery 2 along the approaching direction T1, and the battery post 22 is passed through the battery hole 32. At this time (or just before this), the bracket 6 of the fusible link unit 4 is disposed between the body member 11 and the battery 2 and abuts against the body member 11 to be elastically deformed and elastically restored by the elastic restoring force. The body member 11 is pressed along the direction T2. The bracket 6 supports the lower end of the fusible link unit 4.

  Thereafter, the battery post 22 is completely passed through the battery hole 32, and as shown in FIG. 2, the nut 35a is screwed into the stud bolt 35 to fix the battery terminal 3 and the fusible link unit 4, and the battery terminal 3 A nut 34 is screwed into the bolt 33 to fix the battery terminal 3 and the battery 2. Finally, a cover cover 13 is attached so as to cover the fusible link unit 4.

  According to the present embodiment, the fusible link unit 4 is connected to the fusible link main body 41 and the fusible link main body 41, and comes into contact with the body member 11 when the fusible link unit 4 is attached to the battery 2. Since the bracket 6 that elastically deforms and generates an elastic restoring force to press the body member 11 is provided, the fusible link unit 4 is fixed to the battery 2 in a state where the fusible link unit 4 is supported by the bracket 6. Thus, it is not necessary for the operator to hold the fusible link unit 4 at the normal position during the mounting operation, and the workability during mounting can be improved. Further, even after the fusible link unit 4 is attached to the battery 2, the fusible link unit 4 does not rattle or rotate due to vibration or the like, and the battery post 22 or the like is broken or the fusible link unit 4 is broken. Can be prevented from colliding with other parts. Further, by using the bracket 6 that is elastically deformed more than the variation in the fixing position of the battery 2 fixed to the body member 11, the variation in the fixing position of the battery 2 is absorbed and the fusible link unit 4 is reliably supported. Can do.

  Since the bracket 6 includes the detachable part 61 that is detachable from the fusible link main body 41, the fusible link main body 41 is shared, and the bracket 6 is attached to the body member 11 according to the distance between the body member 11 and the battery 2. The cost can be reduced by appropriately changing to the one that reliably contacts.

  Since the bracket 6 includes an elastic piece 62 that is connected to the attaching / detaching portion 61 and generates an elastic restoring force in the orthogonal direction T2 when the fusible link unit 4 is attached to the battery 2, the fusible link unit 4 The elastic piece 62 can reliably press the body member 11 and support the fusible link unit 4 reliably while keeping the distance from the battery 2 constant.

  In the present embodiment, the fusible link main body 41 and the bracket 6 are separated. However, in the present invention, the fusible link main body 41 and the bracket 6 may be integrally formed.

  In the present embodiment, the direction in which the elastic piece 62 presses the body member 11 is orthogonal to the approaching direction T1. However, in the present invention, the elastic piece 62 may be in a direction that intersects the approaching direction T1.

  Next, a fusible link unit support structure 1 according to a second embodiment of the present invention will be described with reference to FIG. In addition, the same code | symbol is attached | subjected to the same component as 1st embodiment mentioned above, and description is abbreviate | omitted.

  In the fusible link unit support structure 1 according to the second embodiment of the present invention, the fusible link unit 4 includes a fusible link main body 41 and a bracket (corresponding to an elastic portion) 7. The bracket 7 includes an attaching / detaching portion 61, a locking piece 63 (not shown), an elastic piece 71, and a second elastic piece 72.

  The elastic piece 71 and the second elastic piece 72 are formed in a curved strip shape. The elastic piece 71 and the second elastic piece 72 are connected to the end portion in the longitudinal direction of the detachable portion 61 and extend in a direction orthogonal to the longitudinal direction. The elastic piece 71 and the second elastic piece 72 are opposed to each other with a space therebetween. The distance between the elastic piece 71 and the second elastic piece 72 is narrow at the proximal end side and the distal end side of the elastic piece 71 and the second elastic piece 72 and wide at the center in the longitudinal direction. The elastic piece 71 and the second elastic piece 72 are provided so as to be elastically deformable so as to narrow the distance between them (FIG. 8 shows the elastic piece 71 and the second elastic piece 72 before being elastically deformed. (Shown as a dotted line). The outer surface away from the second elastic piece 72 in the vicinity of the center in the longitudinal direction of the elastic piece 71 is a pressing portion 71 c that presses the body member 11. The outer surface away from the elastic piece 71 in the vicinity of the center in the longitudinal direction of the second elastic piece 72 is a pressing portion 72 c that presses the battery 2. Note that the elastic piece 71 and the second elastic piece 72 are not connected but are separate.

  When the bracket 7 is attached to the fusible link main body 41, the elastic piece 71 having the above-described configuration is disposed so as to protrude along the longitudinal direction of the hanging portion 52. When the fusible link unit 4 is attached to the battery 2, the elastic piece 71 is arranged to face the body member 11, and the second elastic piece 72 is arranged to face the side surface 2 b of the battery 2. The When the fusible link unit 4 is attached to the battery 2, the pressing portion 71c comes into contact with the body member 11, the elastic piece 71 is elastically deformed, and an elastic restoring force in the orthogonal direction T2 is generated, so that the pressing portion 71c becomes the body member. 11 is pressed. At the same time, the pressing portion 72c comes into contact with the battery 2 and the second elastic piece 72 is elastically deformed, generating an elastic restoring force in a direction T3 orthogonal to the approaching direction T1, and the pressing portion 72c presses the battery 2. .

  According to the present embodiment, in addition to the effects of the first embodiment described above, when the bracket 7 is connected to the detachable portion 61 and the fusible link unit 4 is attached to the battery 2, it abuts on the battery 2 and is elastic. Since the second elastic piece 72 that deforms and generates an elastic restoring force to press the battery 2 is provided, the fusible link unit 4 is more reliably supported by the elastic piece 71 and the second elastic piece 72. . In addition, the range in which the bracket 7 is elastically deformed is expanded to more easily cope with variations in the fixing position of the battery 2, and the allowable range of the processing accuracy of the fixing member that fixes the battery 2 to the body member 11 is increased. The same bracket 7 can be used as long as the bracket 7 can be brought into contact with the battery 7 even if there is a difference in the arrangement of the battery posts 22 depending on the battery type.

  In the present embodiment, the elastic piece 71 and the second elastic piece 72 are not connected but separated. However, in the present invention, for example, as shown in FIG. 9, the tip of the elastic piece 71 and the tip of the second elastic piece 72 are connected, and the elastic piece 71 and the second elastic piece 72 are integrally formed. Good.

  In addition, embodiment mentioned above only showed the typical form of this invention, and this invention is not limited to embodiment. That is, various modifications can be made without departing from the scope of the present invention.

It is a perspective view which shows the support structure of the fusible link unit concerning 1st embodiment of this invention. It is a perspective view which shows the state in which the fusible link unit shown by FIG. 1 was attached to the battery. It is a perspective view from another direction of the support structure of the fusible link unit shown in FIG. It is a perspective view which decomposes | disassembles and shows the fusible link unit shown by FIG. FIG. 5 is a top view of the bracket shown in FIG. 4. It is a side view from the arrow VI direction in FIG. 4 of the bracket shown by FIG. It is a side view from the arrow VII direction in FIG. 4 of the bracket shown by FIG. It is a side view which shows typically the support structure of the fusible link unit concerning 2nd embodiment of this invention. It is a side view which shows typically the modification of the support structure of the fusible link unit shown by FIG.

Explanation of symbols

1 Support structure of fusible link unit 2 Battery 4 Fusible link unit 6, 7 Bracket (elastic part)
11 Body member (fixed part)
22, 22a, 22b Battery post 41 Fusible link body 61 Detachable part 62, 71 Elastic piece 72 Second elastic piece

Claims (4)

In a support structure for a fusible link unit comprising: a fixed part; a battery fixed to the fixed part; and a fusible link unit attached to a battery post of the battery.
When the fusible link unit is connected to the fusible link main body and the fusible link main body, and the fusible link unit is attached to the battery, the fusible link unit comes into contact with the fixed portion and elastically deforms to elastically restore force. A support structure for a fusible link unit, comprising: an elastic portion that generates the pressure and presses the fixed portion.   The support structure for a fusible link unit according to claim 1, wherein the elastic part includes an attaching / detaching part that is detachable from the fusible link main body.   The elastic piece is connected to the attaching / detaching portion, and an elastic piece that generates an elastic restoring force in a direction intersecting the direction in which the fusible link unit approaches the battery when the fusible link unit is attached to the battery. The support structure of the fusible link unit according to claim 2, comprising:   When the elastic part is connected to the attachment / detachment part and the fusible link unit is attached to the battery, the elastic part comes into contact with the battery and elastically deforms to generate an elastic restoring force to press the battery. The support structure for the fusible link unit according to claim 3, further comprising a piece.

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