JP2011187301A - Battery direct-attachment fusible link - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a battery direct-attachment fusible link capable of reducing working manhour of fastening works of bolts and nuts, torque control, or the like, capable of downsizing vehicle-loaded components, and aiming at space saving at vehicle-loading. <P>SOLUTION: The fusible link is provided with a battery terminal 11 connected to a battery post, a busbar 12 connected with the battery terminal, fuses 15 formed on the busbar 12, and a resin housing 50 covering the busbar in a way exposing its necessary part so as to recognize a state of the fuses from outside. The battery terminal 11 and the busbar 12 are processed with integrally connected sheet metal. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a fusible link directly attached to a battery in order to connect, for example, an in-vehicle battery and a power supply electric wire connected to the in-vehicle device.

  Conventionally, the battery direct-attachable fusible link and the battery terminal connected to the battery post that is the electrode of the battery are configured separately, and on the holding plate portion of the stud bolt provided on the battery terminal side, Overlay the terminal connection plate provided at the base end of the bus bar on the battery direct attachment fusible link side, pass the stud bolt through the bolt insertion hole of the terminal connection plate of the bus bar, and tighten the nut to the distal end side of the stud bolt As a result, the battery directly attached fusible link and the battery terminal are mechanically and electrically firmly connected (for example, see Patent Document 1).

  This type of battery direct-attachable fusible link is used to connect a battery and a power supply electric wire. Generally, a base end connected to a battery terminal and a connection terminal for power supply are formed. A fuse having a fusible part that melts when the current flowing from the base end side to the tip end side exceeds an allowable value between the base end part and the tip part. And a resin housing that covers the bus bar with a necessary part exposed and allows the state of the fuse to be visually recognized from the outside.

  Usually, the bus bar is formed by pressing from one metal plate material, and has a terminal connection plate portion for connecting to the battery terminal at the base end portion. The resin housing also has a locking rib for preventing rotation when the battery terminal stud bolt holding plate and the bus bar terminal connecting plate are connected by tightening with a nut. Have.

  12 and 13 are external views showing a state in which the conventional battery direct-attachable fusible link and the battery terminal are combined, and FIG. 14 is a view of the battery direct-attachable fusible link as seen from the back side with the battery terminal removed. 15 is a plan view showing the configuration of the bus bar as the main element of the fusible link and an enlarged view of the fuse portion therein, FIG. 16 is a perspective view showing the configuration of the same bus bar, and FIG. 17 is a configuration of a conventional battery terminal. FIG.

  The battery direct-attachable fusible link 101 includes a bus bar 112 pressed with sheet metal and a resin housing 150 covering the bus bar 112. As shown in FIGS. 15 and 16, the bus bar 112 includes a base end area portion 112 </ b> A (region indicated by T <b> 5 in FIG. 15A) connected to the battery terminal 111 and a power supply area. The connection terminal 113 (the region indicated by T8 in FIG. 16) has distal end area portions 112B and 112C that are bent in an L shape, and between the proximal end area portion 112A and the distal end area portion 112B. The fuse 115 having a fusible portion 115A that melts when the current flowing from the proximal end area portion 112A side to the distal end area portions 112B and 112C exceeds an allowable value [region indicated by T6 in FIG. 15A] Is formed. A flat terminal connection plate 112D [region indicated by T4 in FIG. 15 (a)] for connecting to the battery terminal 111 protrudes from the base end area 112A.

  In addition, the fuse 115 is provided with a crank-shaped portion 115C [region indicated by T7 in FIG. 15B] in order to increase the length of the linear portion and increase the resistance value. In addition, when the plate thickness of the bus bar 112 is limited to be small due to the processing of the fuse 115 or the like, the plate thickness is increased by processing the connecting structure 13 on the connection terminal 13.

  In the press forming stage of the bus bar 112, the proximal end area portion 112A and the second distal end area portion 112C are provisionally coupled by a bridge-shaped coupling portion 114A, and the second distal end area portion 112C and the first distal end area are connected. The part 112B is provisionally connected by a bridge-like connecting part 114B. These connecting portions 114A and 114B are cut when they are no longer needed, so that the first tip area 112A and the second tip area 112B are independent from each other via the fuse 115. Each is connected to the proximal end area portion 112A.

  The resin housing 150 covers the bus bar 112 with a housing main body 151 made of an opaque resin in a state where necessary portions are exposed, and in addition, a window portion 152 that allows the state of the fuse 115 to be visually recognized from the outside. Have. A transparent resin cover 154 is attached to the window portion 152 when used. The resin housing 150 is insert-molded with the bus bar 112 and is integrated with the bus bar 112. And in the integrated state, the connection terminal 113 provided in the front-end | tip area parts 112B and 112C of the bus-bar 112 is built in the connector housing part as a male tab terminal, and, thereby, the female connector part 153 is formed in the part. .

  Further, as shown in FIG. 14, the terminal connection plate portion 112 </ b> D is superimposed on the stud bolt holding plate portion 11 </ b> C of the battery terminal 111 on the back surface side of the portion where the terminal connection plate portion 112 </ b> D of the resin housing 150 is exposed. A pair of locking ribs 158 (regions indicated by T3 in FIG. 14) for preventing rotation of the battery terminal 111 when the nut 162 is tightened to the stud bolt 161 are provided. Further, a tool work space (a region indicated by T2 in FIG. 13) for fastening the nut 162 to the stud bolt 161 of the battery terminal 111 is secured around the front side portion where the terminal connection plate portion 112D is exposed. Yes. Further, at the stage of molding the resin housing 150, as shown in FIGS. 12 and 13, a part of the first tip area portion 112B is exposed, and the bolt through hole 118 provided in the exposed portion is exposed. A stud bolt 121 for fastening an electric wire connecting terminal connected to a starter motor or the like is fixedly erected at the stage of insert molding.

  On the other hand, as shown in FIG. 17, the battery terminal 111 has a fitting hole portion 111 </ b> A that fits into the battery post at the center on one end side, and the peripheral wall with the slit is reduced in diameter to be fastened to the battery post. Bolt fastening portion 111B. A stud bolt holding plate portion 111 </ b> C for standing the stud bolt 161 is provided on the other end side. The stud bolt holding plate portion 111C is provided with a holding structure portion 111D for holding the stud bolt 161 in an upright state (region indicated by T9 in FIG. 17).

  When attaching the battery direct-mounted fusible link 101 configured in this way to the battery post, first, the bus bar on the battery direct-mounted fusible link 101 side is placed on the stud bolt holding plate portion 111C provided on the battery terminal 111 side. The terminal connection plate portion 112D protruding from the base end area portion 112A of 112 is overlapped, and the stud bolt 161 on the battery terminal 111 side is passed through the bolt insertion hole of the terminal connection plate portion 112D of the bus bar 112, and the front end side of the stud bolt 161 By tightening the nut 162, the battery direct-attachable fusible link 101 is mechanically and electrically firmly connected to the battery terminal 111 (part indicated by T1 in FIG. 12). At that time, the restriction rib 158 for preventing rotation prevents the battery terminal 111 from rotating.

  Next, the battery direct attachment fusible link 101 can be directly attached to the battery by fitting the fitting hole 111A of the battery terminal 111 to the battery post and fastening the bolt fastening part 111B with the bolt and nut 120.

JP 2005-135791 A

  As described above, since the conventional battery direct-mounted fusible link 101 is configured separately from the battery terminal 111, an operation of joining two parts is necessary. That is, it is necessary to connect the terminal connection plate portion 112 </ b> D on the battery direct attachment fusible link 101 side to the stud bolt 161 on the battery terminal 111 side using the nut 162. For this reason, there is a trouble in work that an extra man-hour such as fastening work of the nut 162 and torque management is required. Moreover, it is necessary to provide the stud bolt 161, its holding structure part 111D, etc. in the battery terminal 111 side, and it is necessary to provide the terminal connection board part 112D fastened to the stud bolt 161 in the battery direct attachment fusible link 101 side. For this reason, it is necessary to secure a working space for the nut 162 for fastening around it, and to provide a regulation rib 158 for preventing rotation of the battery terminal 111 on the battery direct attachment fusible link 101 side. In addition, there is a problem that the directly attached fusible link 101 and the battery terminal 111 are increased in size, and an extra space is required around the battery when the vehicle is mounted.

  The present invention has been made in view of the above-described circumstances, and its object is to reduce the number of work steps such as bolt and nut fastening work and torque management, and to reduce the size of vehicle-mounted parts. Thus, it is an object of the present invention to provide a battery direct-attachable fusible link that can save space when mounted on a vehicle.

The above object of the present invention is achieved by the following configurations.
(1) a battery terminal connected to the battery post;
A base end connected to the battery terminal and a front end formed with a connection terminal for power supply, and a current flowing from the base end to the front end between the base end and the front end A bus bar with a fuse formed with a fusible part that melts when the allowable value exceeds
A resin housing that covers the bus bar in a state where a necessary part is exposed, and allows the state of the fuse to be visually recognized from the outside;
In a battery direct-mounted fusible link equipped with
The battery direct-attachable fusible link, wherein the battery terminal and the bus bar are integrally processed by a sheet metal.

  (2) The battery direct-attachable fusible link according to (1), wherein the battery terminal and the bus bar are made of a common thick sheet metal, and the fuse is thinned to reduce a current path cross section.

(3) a battery terminal connected to the battery post;
A base end connected to the battery terminal and a front end formed with a connection terminal for power supply, and a current flowing from the base end to the front end between the base end and the front end A bus bar with a fuse formed with a fusible part that melts when the allowable value exceeds
A resin housing that covers the bus bar in a state where a necessary part is exposed, and allows the state of the fuse to be visually recognized from the outside;
In a battery direct-mounted fusible link equipped with
While processing the battery terminal and the main body portion excluding the fuse of the bus bar integrally with a sheet metal,
The fuse is processed from a metal material separate from the main body portion of the bus bar, and the processed fuse is bridged between the base end portion and the front end portion of the main body portion of the bus bar and joined after retrofitting. A battery direct-attachable fusible link.

  According to the battery direct-attachable fusible link having the configuration of (1) above, the battery terminal and the bus bar are processed by a continuous metal plate, so the battery terminal and the bus bar need to be connected using a stud bolt and a nut. Can be eliminated. Therefore, man-hours such as nut fastening work and torque management can be reduced. In addition, there is no need to provide a stud bolt or its holding structure on the battery terminal side, there is no need to provide a terminal connection plate part to be fastened to the stud bolt on the bus bar, and there is a tool work space for fastening the nut around. The bus bar, the resin housing, and the battery terminal can be reduced in size because it is not necessary to secure the battery terminal and the resin housing does not need to be provided with a rotation restriction rib for the battery terminal, and the vehicle mounting space can be reduced.

  According to the battery direct-attachable fusible link having the configuration (2), the battery terminal and the bus bar are made of sheet metal having a common thickness, and the fuse is thinned to reduce the current path cross section. The thickness can be increased, and the heat dissipation performance can be improved. Moreover, a predetermined fusing performance can be obtained by reducing the thickness of the fuse. In addition, the increase in the thickness of the bus bar eliminates the need for a connecting terminal wiping structure (increase in the thickness of the plate) and increases the connection reliability of the connector connecting portion. Further, since the puff structure is eliminated, the press die structure at the same portion can be simplified.

  According to the battery direct-attachable fusible link having the above configuration (3), the battery terminal and the main body portion excluding the fuse of the bus bar are processed by a continuous metal plate, while the fuse is separated from the main body portion of the bus bar. Since the processed fuse is bridged between the base end and the tip of the bus bar body and joined afterwards, the capacity of the fuse is independent of the material and thickness of the bus bar. Can be set and retrofitted. In addition, since the battery terminal and the main body of the bus bar are processed by a continuous sheet metal, it is not necessary to connect the battery terminal and the bus bar using stud bolts and nuts. Therefore, man-hours such as nut fastening work and torque management can be reduced. In addition, there is no need to provide a stud bolt or its holding structure on the battery terminal side, there is no need to provide a terminal connection plate part to be fastened to the stud bolt on the bus bar, and there is a tool work space for fastening the nut around. The bus bar, the resin housing, and the battery terminal can be reduced in size because it is not necessary to secure the battery terminal and the resin housing does not need to be provided with a rotation restriction rib for the battery terminal, and the vehicle mounting space can be reduced.

  According to the present invention, it is possible to reduce the number of work steps such as bolt and nut fastening work and torque management, and it is possible to reduce the size of vehicle-mounted components and to save space when mounted on the vehicle. .

BRIEF DESCRIPTION OF THE DRAWINGS It is a figure which shows the structure of the bus bar with a battery terminal which is the main element of the battery direct attachment fusible link of 1st Embodiment of this invention, (a) is a top view, (b) is the Ib-Ib arrow of (a). Sectional view in the view, (c) is an enlarged view of the portion Ic in (b). It is a perspective view which shows the structure of the same bus bar. It is an external appearance perspective view of the battery direct attachment fusible link of 1st Embodiment comprised incorporating the bus bar with the said battery terminal. It is a top view of the battery direct attachment fusible link. It is the perspective view seen from the back surface side of the battery direct attachment fusible link. It is a top view which shows the structure of the main-body part of the bus-bar with a battery terminal which is the main element of the battery direct attachment fusible link of 2nd Embodiment of this invention. It is a perspective view which shows the structure of the main-body part of the bus bar. It is a top view of the single body of the fuse joined to the main-body part of the bus bar. It is a top view which shows the state which joined the fuse to the main-body part of a bus bar, and comprised the bus bar with a battery terminal which is the main element of the battery direct attachment fusible link of 2nd Embodiment of this invention. (A) is Xa-Xa arrow sectional drawing of FIG. 9, (b) is an enlarged view of the Xb part of (a). It is an external appearance top view of the battery direct attachment fusible link of 2nd Embodiment comprised incorporating the bus bar with a battery terminal shown in FIG. It is an external appearance perspective view which shows the state which combined the conventional battery direct attachment fusible link and the battery terminal. It is an external appearance top view which shows the state which combined the conventional battery direct attachment fusible link and the battery terminal. It is the perspective view seen from the back side in the state which removed the battery terminal of the battery direct attachment fusible link shown in FIG. It is a top view which shows the structure of the bus bar which is the main elements of the fusible link of FIG. 12, and an enlarged view of the fuse part in it. It is a perspective view which shows the structure of the same bus bar. It is a perspective view which shows the structure of the conventional battery terminal.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[First Embodiment]
1A and 1B are diagrams showing a configuration of a bus bar with a battery terminal, which is a main element of a battery direct-mounted fusible link according to the first embodiment. FIG. 1A is a plan view, and FIG. 1B is an Ib-Ib arrow in FIG. FIG. 2 is a perspective view showing the configuration of the same bus bar, FIG. 3 is a perspective view of the battery of the first embodiment configured by incorporating a bus bar with a battery terminal. 4 is an external perspective view of the attached fusible link, FIG. 4 is a plan view of the battery directly attached fusible link, and FIG. 5 is a perspective view of the battery directly attached fusible link as viewed from the back side.

  The battery directly attached fusible link 1 of the first embodiment shown in FIGS. 3 to 5 is a bus bar with a battery terminal in which the battery terminal 11 and the bus bar portion 12 are integrally pressed by a single continuous sheet metal having a constant plate thickness. 10 and a resin housing 50 covering the bus bar 10.

  As shown in FIGS. 1 and 2, the bus bar portion 12 of the battery terminal-equipped bus bar 10 has a base end area portion (base end portion) 12 </ b> A continuous with the battery terminal 11 (region indicated by S <b> 2 in FIG. 1A). And the power supply connection terminal 13 (the region indicated by S4 in FIG. 2) have tip area portions (tip portions) 12B and 12C that are bent in an L shape, and these proximal end area portions. A fuse 15 having a fusible portion 15A that melts when the current flowing from the proximal end area portion 12A side to the distal end area portions 12B and 12C exceeds an allowable value between 12A and the distal end area portions 12B and 12C. A region indicated by S3 in FIG. 1A] is formed. A battery terminal 11 [region indicated by S1 in FIG. 1A] is integrally connected to the base end area portion 12A.

  The battery terminal 11 has a fitting hole 11 </ b> A that fits into the battery post at the center, and a bolt fastening portion 11 </ b> B for fastening the peripheral wall with the slit to a diameter of the battery post. The side edge of the battery terminal 11 opposite to the bolt fastening part 11B is integrally connected to the base end area part 12A of the bus bar part 12, and therefore the stud bolt and its holding structure part can be omitted.

  Further, the fuse 15 has a reduced thickness to reduce the current path cross section of the linearized portion, thereby increasing the resistance value. As a specific example, the thickness of the base material thickness of 1.20 mm of the bus bar 10 is reduced to t1 = 0.64 mm in the fuse 15 portion. As a method for reducing the thickness, a cutting method or a pressing method can be used.

  In the press molding stage of the bus bar 12, the proximal end area portion 12A and the second distal end area portion 12C are provisionally coupled by a bridge-shaped coupling portion 14A, and the second distal end area portion 12C and the first distal end area are connected. The part 12B is provisionally connected by a bridge-like connecting part 14B. These connecting portions 14A and 14B are cut when they are no longer needed, so that the first tip area portion 12A and the second tip area portion 12B are independent from each other via the fuse 15. Each is connected to the proximal end area portion 12A.

  As shown in FIGS. 3 to 5, the resin housing 50 covers the bus bar portion 12 with a housing main body portion 51 made of an opaque resin in a state where a necessary portion is exposed. A window portion 52 is provided so as to be visible from the outside. A transparent resin cover 54 is attached to the window 52 when in use. The resin housing 50 is insert-molded with the bus bar portion 12 and integrated with the bus bar portion 12. And in the integrated state, the connection terminal 13 provided in the front end area portions 12B and 12C of the bus bar portion 12 is housed in the connector housing portion as a male tab terminal, whereby the female connector portion 53 is formed at that portion. Yes.

  Further, at the stage of molding the resin housing 50, a part of the first tip area portion 12B is exposed, and the bolt connection hole 18 provided in the exposed portion has a wire connection terminal connected to the starter motor or the like. A fastening stud bolt 21 is fixedly erected at the stage of insert molding.

  When attaching the battery direct-mounted fusible link 1 configured in this way to the battery post, the fitting hole 11A of the battery terminal 11 is fitted into the battery post, and the bolt fastening portion 11B is tightened with the bolt and nut 120, The directly attached battery fusible link 1 can be directly attached to the battery.

  According to this battery direct-attachable fusible link 10, since the battery terminal 11 is formed integrally with a part of the bus bar 10, it is necessary to connect the battery terminal and the bus bar using stud bolts and nuts as in the prior art. There is no. Therefore, man-hours such as nut fastening work and torque management can be reduced. Further, it is not necessary to provide a stud bolt or its holding structure on the battery terminal 11 side, it is not necessary to provide a terminal connection plate portion to be fastened to the stud bolt on the bus bar 10, and a tool work space for fastening the nut is provided. The bus bar portion 12, the resin housing 50, and the battery terminal 11 can be significantly downsized because it is not necessary to secure the periphery, and it is not necessary to provide the rotation restriction rib of the battery terminal on the resin housing 50. Vehicle mounting space can be reduced.

  In addition, since the battery terminal 11 and the bus bar portion 12 are made of sheet metal having a common thickness, and the fuse 15 is thinned to reduce the current path cross section, the thickness of the entire bus bar 10 including the battery terminal 11 is reduced. The increase can be achieved and the heat dissipation performance can be improved. Further, the fuse 15 can be thinned to obtain a predetermined fusing performance. Further, the increase in the thickness of the bus bar portion 12 eliminates the need for a cover structure (increase in the plate thickness) of the connection terminal 13 and increases the connection reliability of the connector connection portion. Further, since the puff structure is eliminated, the press die structure at the same portion can be simplified.

[Second Embodiment]
FIG. 6 is a plan view showing a configuration of a main body portion of a bus bar with a battery terminal which is a main element of a battery direct-mounted fusible link according to a second embodiment of the present invention, and FIG. 7 is a perspective view showing a configuration of the main body portion of the bus bar. FIG. 8 is a plan view of a single fuse to be joined to the main body portion of the bus bar. FIG. 9 is a diagram of the fusible link directly attached to a battery according to the second embodiment of the present invention by joining the fuse to the main body portion of the bus bar. FIG. 10A is a plan view showing a state where a bus bar with a battery terminal as a main element is configured, FIG. 10A is a cross-sectional view taken along arrow Xa-Xa in FIG. 9, and FIG. FIG. 11 is an external plan view of the battery direct-mounted fusible link according to the second embodiment configured by incorporating the bus bar with the battery terminal shown in FIG.

  The battery direct-mounted fusible link 71 of the second embodiment shown in FIG. 11 includes a bus bar with a battery terminal of the first embodiment, a main body portion 60A of the bus bar shown in FIGS. 6 and 7, and a fuse 15 shown in FIG. 9 is manufactured by separating the piece 65 having the fuse 15 and then processing the piece 65 having the fuse 15 to the main body portion 60A of the bus bar to produce the bus bar 60 with the battery terminal shown in FIG. The resin housing 50 is formed by insert molding using the bus bar 60.

  As shown in FIGS. 6 and 7, the bus bar portion 12 of the main body portion 60 </ b> A of the bus bar 10 with a battery terminal includes a base end area portion 12 </ b> A [region indicated by S <b> 2 in FIG. Connection terminal 13 (region indicated by S4 in FIG. 7) has tip area portions 12B and 12C that are bent in an L shape, and the base area portion 12A and the tip area portion 12B are connected to each other. In the meantime, as a difference from the first embodiment, the piece of the fuse 15 having the fusible part 15A that melts when the current flowing from the proximal end area part 12A side to the distal end area part 12B, 12C side exceeds an allowable value. A space 17 is secured for bridging 65 (see FIG. 8) in a bridge shape and joining. In addition, the battery terminal 11 [area | region shown by S1 in FIG. 6] is integrally connected by 12 A of base end area parts similarly to 1st Embodiment. The main body portion 60A of the bus bar 10 with the battery terminal is press-worked with a sheet metal that is continuous and thick.

  The battery terminal 11 has a fitting hole 11 </ b> A that fits into the battery post at the center, and a bolt fastening portion 11 </ b> B for fastening the peripheral wall with the slit to a diameter of the battery post. The side edge of the battery terminal 11 opposite to the bolt fastening part 11B is integrally connected to the base end area part 12A of the bus bar part 12, and therefore the stud bolt and its holding structure part can be omitted.

  In the press molding stage of the bus bar 12, the proximal end area portion 12A and the second distal end area portion 12C are provisionally coupled by a bridge-shaped coupling portion 14A, and the second distal end area portion 12C and the first distal end area are connected. The part 12B is provisionally connected by a bridge-like connecting part 14B. These connecting portions 14A and 14B are cut when they are no longer needed, whereby the first tip area portion 12A and the second tip area portion 12B are separated from each other via a fuse 15 that is attached later. Thus, each is connected to the proximal end area portion 12A.

  On the other hand, the piece 65 having the fuse 15 to be retrofitted is provided with mounting flanges 66 with holes 67 at both ends of the fuse 15 as shown in FIG. Further, a fusible portion 15 </ b> A is provided in a part of the fuse 15. The piece 65 having the fuse 15 is processed from a metal material having a smaller thickness than the main body portion 60A of the bus bar. The mounting flanges 66 at both ends of the processed piece 65 are connected to the main portion 60A of the bus bar. 9 is integrated with the bus bar main body portion 60A by bridging and joining the space 17 between the proximal end area portion 12A and the distal end area portions 12B and 12C in a bridge shape, and as shown in FIG. A bus bar 60 with a battery terminal is configured. As a bonding method, resistance welding, adhesion caulking, ultrasonic bonding, laser bonding, or the like can be used. In the case of laser bonding, there is an advantage that the tin welding equipment for the soluble portion 15A can be shared.

  In this way, when the fuse 15 is formed as a separate piece 65 from the bus bar main body portion 60A, the shape can be examined from two aspects of material and space when setting different specifications or making a sudden design change. Variations are diversified and easy design is possible. Further, since the degree of freedom in selecting the plate thickness is increased, the fuse 15 can be formed in a straight shape instead of a crank shape as in the prior art, and it is possible to simplify the stamping die structure. For example, as shown in FIG. 10B, the thickness t2 of the fuse 15 can be easily set to 0.4 mm.

  And the battery direct attachment fusible link 71 of embodiment is obtained by insert-molding the resin housing 50 in the state which set the bus bar 60 with a battery terminal of FIG. 7-10 comprised in this way to the metal mold | die. Can do.

  In this case, as in the first embodiment, as shown in FIG. 11, the resin housing 50 covers the bus bar portion 12 with the housing main body 51 made of opaque resin in a state where the necessary portion is exposed, In addition, a window portion 52 is provided to make the state of the fuse 15 visible from the outside. A transparent resin cover 54 is attached to the window 52 when in use. In the state where the resin housing 50 and the battery terminal-equipped bus bar 60 are integrated in this way, the connection terminals 13 provided in the tip area portions 12B and 12C of the bus bar portion 12 are incorporated in the connector housing portion as male tab terminals. Thus, the female connector portion 53 is formed at that portion.

  Further, at the stage of molding the resin housing 50, a part of the first tip area portion 12B is exposed, and the bolt connection hole 18 provided in the exposed portion has a wire connection terminal connected to the starter motor or the like. A fastening stud bolt 21 is fixedly erected at the stage of insert molding.

  When attaching the battery direct-attachable fusible link 71 configured in this way to the battery post, the fitting hole 11A of the battery terminal 11 is fitted to the battery post, and the bolt fastening portion 11B is tightened with the bolt and nut 120, The directly attached battery fusible link 1 can be directly attached to the battery.

  According to the battery direct-attachable fusible link 71, the battery terminal 11 and the main body portion 60A excluding the fuse of the bus bar are processed by a continuous metal plate, while the piece 65 of the fuse 15 is connected to the main body portion 60A of the bus bar. Since the piece 65 of the processed fuse 15 is processed from a separate metal material and bridged between the base end area portion 12A and the front end area portions 12B and 12C of the main body portion 60A of the bus bar, it is joined later. The capacity of the fuse 15 can be set and retrofitted completely independently from the material and thickness of the main body portion 60A of the bus bar. Therefore, the degree of freedom in designing the capacity of the fuse is increased.

  Moreover, since the battery terminal 11 and the bus bar main body portion 60A are integrally processed by a sheet metal, it is not necessary to connect the battery terminal 11 and the bus bar using stud bolts and nuts. Therefore, man-hours such as nut fastening work and torque management can be reduced. In addition, there is no need to provide a stud bolt or its holding structure on the battery terminal side, there is no need to provide a terminal connection plate part to be fastened to the stud bolt on the bus bar, and there is a tool work space for fastening the nut around. The bus bar, the resin housing, and the battery terminal can be reduced in size because it is not necessary to secure the battery terminal and the resin housing does not need to be provided with a rotation restriction rib for the battery terminal, and the vehicle mounting space can be reduced.

  In addition, this invention is not limited to embodiment mentioned above, A deformation | transformation, improvement, etc. are possible suitably. In addition, the material, shape, dimension, numerical value, form, number, arrangement location, and the like of each component in the above-described embodiment are arbitrary and are not limited as long as the present invention can be achieved.

1,71 Battery direct attachment fusible link 11 Battery terminal 12 Bus bar 12A Base end area (base end)
12B, 12C Tip area (tip)
13 Connection Terminal 15A Fusible Part 15 Fuse 50 Resin Housing 60A Body of Bus Bar with Battery Terminal 65 Fuse Piece

Claims (3)

A battery terminal connected to the battery post;
A base end connected to the battery terminal and a front end formed with a connection terminal for power supply, and a current flowing from the base end to the front end between the base end and the front end A bus bar with a fuse formed with a fusible part that melts when the allowable value exceeds
A resin housing that covers the bus bar in a state where a necessary part is exposed, and allows the state of the fuse to be visually recognized from the outside;
In a battery direct-mounted fusible link equipped with
The battery direct-attachable fusible link, wherein the battery terminal and the bus bar are integrally processed by a sheet metal.   The battery direct attachment fusible link according to claim 1, wherein the battery terminal and the bus bar are made of sheet metal having a common thickness, and the fuse is thinned to reduce a current path cross section. A battery terminal connected to the battery post;
A base end connected to the battery terminal and a front end formed with a connection terminal for power supply, and a current flowing from the base end to the front end between the base end and the front end A bus bar with a fuse formed with a fusible part that melts when the allowable value exceeds
A resin housing that covers the bus bar in a state where a necessary part is exposed, and allows the state of the fuse to be visually recognized from the outside;
In a battery direct-mounted fusible link equipped with
While processing the battery terminal and the main body portion excluding the fuse of the bus bar integrally with a sheet metal,
The fuse is processed from a metal material separate from the main body portion of the bus bar, and the processed fuse is bridged between the base end portion and the front end portion of the main body portion of the bus bar and joined after retrofitting. A battery direct-attachable fusible link.

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