US20170214155A1 - Electronic component unit and electrical connection box - Google Patents
Electronic component unit and electrical connection box Download PDFInfo
- Publication number
- US20170214155A1 US20170214155A1 US15/413,630 US201715413630A US2017214155A1 US 20170214155 A1 US20170214155 A1 US 20170214155A1 US 201715413630 A US201715413630 A US 201715413630A US 2017214155 A1 US2017214155 A1 US 2017214155A1
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- US
- United States
- Prior art keywords
- unit
- bus bar
- space portion
- electronic component
- terminal
- Prior art date
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R9/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, e.g. terminal strips or terminal blocks; Terminals or binding posts mounted upon a base or in a case; Bases therefor
- H01R9/22—Bases, e.g. strip, block, panel
- H01R9/24—Terminal blocks
- H01R9/2458—Electrical interconnections between terminal blocks
- H01R9/2466—Electrical interconnections between terminal blocks using a planar conductive structure, e.g. printed circuit board
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
- B60R16/023—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for transmission of signals between vehicle parts or subsystems
- B60R16/0239—Electronic boxes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
- B60R16/023—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for transmission of signals between vehicle parts or subsystems
- B60R16/0238—Electrical distribution centers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R9/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, e.g. terminal strips or terminal blocks; Terminals or binding posts mounted upon a base or in a case; Bases therefor
- H01R9/22—Bases, e.g. strip, block, panel
- H01R9/24—Terminal blocks
- H01R9/2425—Structural association with built-in components
- H01R9/2433—Structural association with built-in components with built-in switch
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R9/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, e.g. terminal strips or terminal blocks; Terminals or binding posts mounted upon a base or in a case; Bases therefor
- H01R9/22—Bases, e.g. strip, block, panel
- H01R9/24—Terminal blocks
- H01R9/2425—Structural association with built-in components
- H01R9/245—Structural association with built-in components with built-in fuse
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
- H02G3/02—Details
- H02G3/08—Distribution boxes; Connection or junction boxes
- H02G3/16—Distribution boxes; Connection or junction boxes structurally associated with support for line-connecting terminals within the box
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
- H01H85/02—Details
- H01H2085/0233—Details with common casing for fusible elements inserted in more than one phase or more than one circuit
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
- H01H85/02—Details
- H01H85/20—Bases for supporting the fuse; Separate parts thereof
- H01H85/2045—Mounting means or insulating parts of the base, e.g. covers, casings
Definitions
- the present invention relates to an electronic component unit and an electrical connection box.
- a known electrical connection box such as the above is an electrical connection box that includes an electronic component unit provided with a bus bar on which electronic components such as a fusible link, a fuse, and a relay are mounted, and an accommodation member that accommodates therein the bus bar; and a housing that accommodates therein the electronic component unit (see Japanese Patent Application Laid-open No. 2011-155762).
- the electronic component unit described above includes a plurality of electronic components, and there are times when all the electronic components are to be electrically connected to a single electrical connection unit such as a power terminal from a power source, for example.
- the bus bar includes a tab unit for each of the electronic components, and a single connection unit connected to the tab units. More specifically, each of the tab units of the bus bar is formed in a rectangular shape, and an end of each of the tab units in the insertion direction of the electronic component is coupled to a connection unit formed in a strip shape.
- the inner space portion of the accommodation member is divided by dividing walls, forming divided space portions (cavities). When the bus bar is accommodated in the accommodation member, each of the tab units is positioned inside each of the divided space portions.
- the electronic component that is accommodated in the divided space portion is mounted on each of the tab units inside each of the divided space portions, and each of the tab units and the electronic component are electrically connected inside each of the divided space portions.
- bus bar described above is configured of the tab units and the single connection unit, the external shape of the bus bar becomes complicated in shape. Consequently, there is room for further improvement.
- the present invention has been made in view of the above, and an object of the present invention is to provide an electronic component unit and an electrical connection box that can electrically connect a bus bar and each of electronic components inside each of divided space portions, and that can simplify the external shape of the bus bar.
- an electronic component unit includes an accommodation member that includes a first opening and a second opening for communicating an accommodation space portion; a plurality of electronic components that are accommodated in the accommodation space portion by being inserted into the accommodation space portion from the second opening; and a bus bar in a planar shape that is accommodated in the accommodation space portion by being inserted into the accommodation space portion from the first opening, and that includes a rectangular unit
- the accommodation member includes a dividing wall that couples inner wall surfaces facing each other in a peripheral wall for forming the accommodation space portion, in the accommodation space portion, and that forms divided space portions by dividing the accommodation space portion, the dividing wall is provided with a slit that extends from an end of the first opening side toward the second opening, and that communicates the adjacent divided space portions
- the rectangular unit of the bus bar is exposed to inside of each of the divided space portions, when the rectangular unit is held by being inserted into the slit, and the electronic components are individually accommodated in the respective divided space portions
- an electrical connection box includes a housing; and an electronic component unit that is accommodated in a housing inner space portion of the housing, wherein the electronic component unit includes an accommodation member having a first opening and a second opening that communicate an accommodation space portion of the electronic component unit, a plurality of electronic components that are accommodated in the accommodation space portion by being inserted into the accommodation space portion from the second opening, and a bus bar in a planar shape that is accommodated in the accommodation space portion by being inserted into the accommodation space portion from the first opening, and that includes a rectangular unit
- the accommodation member includes a dividing wall that couples inner wall surfaces facing each other in a peripheral wall for forming the accommodation space portion, in the accommodation space portion, and that forms divided space portions by dividing the accommodation space portion, the dividing wall is provided with a slit that extends from an end of the first opening side toward the second opening, and that communicates the adjacent divided space portions, the rectangular unit of the bus bar is exposed to inside of each of the divided space
- FIG. 1 is a partial perspective view illustrating a schematic configuration of an electronic component unit and an electrical connection box according to a first embodiment
- FIG. 2 is an exploded perspective view of the electronic component unit according to the first embodiment
- FIG. 3 is a sectional view of the electronic component unit according to the first embodiment
- FIG. 4 is a sectional view of the electronic component unit according to the first embodiment
- FIG. 5 is a perspective view of a bus bar according to a second embodiment.
- FIG. 6 is a schematic view of the bus bar according to the second embodiment.
- FIG. 1 is a partial perspective view illustrating a schematic configuration of the electronic component unit and the electrical connection box according to the first embodiment.
- FIG. 2 is an exploded perspective view of the electronic component unit according to the first embodiment.
- FIG. 3 is a sectional view of the electronic component unit according to the first embodiment.
- FIG. 4 is a sectional view of the electronic component unit according to the first embodiment.
- FIG. 3 is a sectional view cut along a line S-S in FIG. 1
- FIG. 4 is a sectional view cut along a line R-R in FIG. 1 .
- the X direction in the drawings is the longitudinal direction of the electronic component unit in the present embodiment.
- the Y direction is the width direction of the electronic component unit in the present embodiment, and is a direction orthogonal to the longitudinal direction.
- the Z direction is the vertical direction of the electronic component unit in the present embodiment, and is a direction orthogonal to the width direction as well as the longitudinal direction.
- the Z 1 direction is the upward direction.
- the Z 2 direction is the downward direction.
- An electrical connection box 100 includes a housing 101 and a housing inner space portion 102 that is formed by the housing 101 . As illustrated in FIG. 1 , the electrical connection box 100 accommodates at least a single electronic component unit 1 in the housing inner space portion 102 .
- the electrical connection box 100 integrates and accommodates therein electrical components such as a terminal metal fitting, a relay, and resistance that are incorporated into a wire harness, which is not illustrated, routed in an automobile, and that form a connection processing part such as an electric wire.
- the electrical connection box 100 distributes power supplied from a power source such as a battery, to various electronic instruments in the vehicle.
- the electrical connection box 100 may also be referred to as a junction box, a fuse box, a relay box, and the like, but in the present embodiment, these are collectively referred to as the electrical connection box.
- the electronic component unit 1 in the present embodiment configures a part of a power distribution circuit that distributes power supplied from a power source, which is not illustrated, to various electronic instruments in the vehicle.
- the electronic component unit 1 includes an accommodation member 2 , a bus bar 3 , a plurality of terminals 4 , and a plurality of electronic components 5 .
- the accommodation member 2 is a member that accommodates therein the bus bar 3 , the terminals 4 , and the electronic components 5 .
- the accommodation member 2 facilitates the handling of the bus bar 3 , the terminals 4 , and the electronic components 5 , by installing therein the bus bar 3 , the terminals 4 , and the electronic components 5 2 in advance, before being accommodated in the electrical connection box 100 .
- the accommodation member 2 is made of synthetic resin, and as illustrated in FIG. 1 and FIG. 4 , includes an inner space portion 2 a , a peripheral wall 20 , a positioning bottom plate 21 , a partitioning plate 22 , a terminal partitioning plate 23 , a protrusion portion 24 , and a dividing wall 25 .
- the inner space portion 2 a includes a power source space portion 2 b and an accommodation space portion 2 c .
- the peripheral wall 20 forms the accommodation space portion 2 c .
- the peripheral wall 20 is formed of a plurality of walls, and the walls are connected with each other, thereby forming a tube in a substantially square shape.
- the accommodation member 2 is communicated with the outside through both ends of the accommodation space portion 2 c in the vertical direction, by the peripheral wall 20 .
- the accommodation member 2 includes a lower side opening (first opening) 2 d that is an opening formed at the lower side, and an upper side opening (second opening) 2 e that is an opening formed at the upper side.
- a slit is formed on a boundary wall between the power source space portion 2 b and the accommodation space portion 2 c , and the power source space portion 2 b and the accommodation space portion 2 c are communicated via the slit.
- the accommodation space portion 2 c is provided with the positioning bottom plate 21 , the partitioning plate 22 , the terminal partitioning plate 23 , the protrusion portion 24 , and the dividing wall 25 .
- the positioning bottom plate 21 determines the position of each of the electronic components 5 in the vertical direction (Z direction), by coming into contact with the lower side end of the electronic component 5 that is accommodated in the accommodation space portion 2 c .
- the positioning bottom plate 21 is formed in a planar shape, and both ends of the positioning bottom plate 21 in the longitudinal direction (X direction) are coupled to an inner wall surface 20 a and an inner wall surface 20 b that are facing each other in the longitudinal direction of the peripheral wall 20 .
- the end of the positioning bottom plate 21 at an inner wall surface 20 c side (bus bar 3 side) in the width direction (Y direction) is coupled to the inner wall surface 20 c , and the end of the positioning bottom plate 21 at an inner wall surface 20 d side (terminal 4 side) is separated from the inner wall surface 20 d .
- the width of the positioning bottom plate 21 in the width direction is formed so that the terminal 4 can penetrate through the end at the terminal 4 side and the inner wall surface 20 d .
- the positioning bottom plate 21 is formed so that when the electronic component 5 is accommodated in the accommodation space portion 2 c , the upper side end surface of the electronic component 5 protrudes from the upper side opening 2 e , in the vertical direction.
- the accommodation space portion 2 c is divided into an upper side space portion 2 f and a lower side space portion 2 g by the positioning bottom plate 21 , the positioning bottom plate 21 being the boundary.
- a slit 21 a is formed on the positioning bottom plate 21 .
- the slit 21 a penetrates through the positioning bottom plate 21 in the vertical direction, and the upper side space portion 2 f and the lower side space portion 2 g are communicated via the slit 21 a .
- the slit 21 a is formed across the entire longitudinal direction, from the inner wall surface 20 a to the inner wall surface 20 b .
- the width of the slit 21 a in the width direction is formed so that a rectangular unit 30 , which will be described below, of the bus bar 3 can penetrate through the slit 21 a , when the bus bar 3 is inserted into the accommodation space portion 2 c.
- the partitioning plate 22 is provided in the lower side space portion 2 g .
- the partitioning plate 22 divides the lower side space portion 2 g into a bus bar side space portion 2 h into which the bus bar 3 is to be inserted, and a terminal side space portion 2 i into which the terminal 4 is to be inserted, in the width direction.
- the partitioning plate 22 is formed in a planar shape, and both ends of the partitioning plate 22 in the longitudinal direction are coupled to the inner wall surface 20 a and the inner wall surface 20 b .
- the partitioning plate 22 extends downward from the end of the positioning bottom plate 21 at the terminal 4 side to the lower side opening 2 d .
- an inverted L-shaped plate (wall) that protrudes from the inner wall surface 20 c is formed across the entire longitudinal direction of the accommodation space portion 2 c , by the positioning bottom plate 21 and the partitioning plate 22 . Consequently, the bus bar side space portion 2 h and the upper side space portion 2 f are divided by the positioning bottom plate 21 , but the terminal side space portion 2 i and the upper side space portion 2 f are not divided.
- the terminal partitioning plate 23 is provided in the terminal side space portion 2 i .
- a plurality of the terminal partitioning plates 23 are formed in the longitudinal direction.
- the terminal partitioning plates 23 divide the terminal side space portion 2 i in the longitudinal direction, and form a plurality of terminal side divided space portions 2 j .
- Each of the terminal side divided space portions 2 j in the present embodiment is formed at regular intervals in the longitudinal direction, and accommodates therein the terminal 4 individually.
- the terminal partitioning plate 23 is in a planar shape, and is coupled to the partitioning plate 22 and the inner wall surface 20 d in the width direction.
- the terminal partitioning plate 23 extends downward from the upper side end of the partitioning plate 22 to the lower side opening 2 d , in the vertical direction.
- the protrusion portion 24 is provided in each of the terminal side divided space portions 2 j .
- the protrusion portion 24 determines the position of the electronic component 5 in the vertical direction, with the positioning bottom plate 21 , by coming into contact with the lower side end of the electronic component 5 that is to be accommodated in the accommodation space portion 2 c .
- the protrusion portion 24 protrudes into the terminal side divided space portion 2 j .
- the protrusion portion 24 of the present embodiment is also coupled to the inner wall surface 20 d .
- the protrusion portion 24 protrudes into each of the adjacent terminal side divided space portions 2 j , from the terminal partitioning plate 23 .
- two protrusion portions 24 that are facing each other in the longitudinal direction, are formed in the single terminal side divided space portion 2 j .
- the width of the protrusion portion 24 in the width direction is formed so that the terminal 4 can penetrate through the end of the protrusion portion 24 at the bus bar 3 side and the partitioning plate 22 .
- the dividing wall 25 is provided in the upper side space portion 2 f .
- a plurality of the dividing walls 25 are formed in the longitudinal direction, depending on the number of electronic components 5 to be accommodated in the accommodation space portion 2 c .
- the dividing walls 25 divide the upper side space portion 2 f in the longitudinal direction, and form divided space portions 2 k .
- Each of the dividing walls 25 in the present embodiment is formed at regular intervals in the longitudinal direction, and the electronic components 5 are individually accommodated in the respective divided space portions 2 k .
- Each of the dividing walls 25 is formed in a planar shape, and is coupled to the inner wall surface 20 c and the inner wall surface 20 d that are facing each other in the longitudinal direction of the peripheral wall 20 , in the width direction.
- the dividing wall 25 protrudes upward from the positioning bottom plate 21 and the upper side end surface of the terminal partitioning plate 23 in the vertical direction, and extends to the upper side opening 2 e .
- the dividing wall 25 continues to the terminal partitioning plate 23 in the vertical direction, and forms a single plate with the terminal partitioning plate 23 .
- a slit 25 a is formed on the dividing wall 25 .
- the rectangular unit 30 of the bus bar 3 is to be inserted into the slit 25 a .
- the slit 25 a is formed upward from the lower side end of the dividing wall 25 , in the vertical direction.
- the slit 25 a penetrates through the dividing wall 25 in the longitudinal direction, and the adjacent divided space portions 2 k are communicated via the slit 25 a .
- the slit 25 a faces the positioning bottom plate 21 in the width direction, and is communicated with the slit 21 a .
- the upper side end of the slit 25 a is formed at a position lower than the upper side end of the dividing wall 25 , to restrict the movement of the bus bar 3 in the upward direction, when the bus bar 3 is inserted into the accommodation space portion 2 c.
- the bus bar side space portion 2 h includes a bus bar holding unit 26 and bus bar restricting units 27 a and 27 b .
- the bus bar holding unit 26 protrudes from the inner wall surface 20 c to the bus bar side space portion 2 h .
- the bus bar holding unit 26 comes into contact with the lower side end of the rectangular unit 30 of the bus bar 3 , and restricts the movement of the bus bar 3 in the vertical direction, with the slit 25 a . Consequently, the bus bar holding unit 26 holds the bus bar 3 , while the rectangular unit 30 of the bus bar 3 is inserted into the slit 25 a .
- the bus bar holding unit 26 protrudes so as to separate from the inner wall surface 20 c , from the lower side to the upper side in the vertical direction, and is elastically deformable.
- the bus bar restricting units 27 a and 27 b face each other in the width direction, and are formed at regular intervals in the longitudinal direction. When the bus bar 3 is inserted between the bus bar restricting units 27 a and 27 b , the bus bar restricting units 27 a and 27 b restrict the movement of the bus bar 3 in the width direction.
- the bus bar restricting unit 27 a is formed on the wall facing the inner wall surface 20 c , and extends downward from the lower side end surface of the positioning bottom plate 21 to the lower side opening 2 d .
- the bus bar restricting unit 27 b is formed on the partitioning plate 22 , and extends downward from the lower side end surface of the positioning bottom plate 21 to the lower side opening 2 d .
- An inclined surface for allowing the bus bar 3 to be inserted easily, is formed on each of the lower side ends of the bus bar restricting units 27 a and 27 b .
- the end-to-end distance of the inclined surface in the width direction increases toward the lower side.
- a terminal holding unit 28 and terminal restricting units 29 a and 29 b are provided in each of the terminal side divided space portions 2 j .
- the terminal holding unit 28 protrudes from the inner wall surface 20 d to the terminal side divided space portion 2 j .
- the terminal holding unit 28 is inserted into a recess portion of the terminal 4 , and holds the terminal 4 by restricting the movement of the terminal 4 in the vertical direction, with the partitioning plate 22 .
- the terminal holding unit 28 protrudes upward so as to separate from the inner wall surface 20 d , from the lower side toward the upper side in the vertical direction.
- the terminal holding unit 28 is formed so as to be elastically deformable.
- the terminal restricting units 29 a and 29 b face each other in the width direction, and are formed at regular intervals in the longitudinal direction.
- the terminal restricting units 29 a and 29 b restrict the movement of the terminal 4 in the width direction.
- the terminal restricting unit 29 a is formed on the partitioning plate 22 , and extends downward from the middle of the partitioning plate 22 to the lower side opening 2 d .
- the terminal restricting unit 29 b is formed on a wall corresponding to the inner wall surface 20 d , and extends downward from the lower side end surface of the protrusion portion 24 to the lower side opening 2 d .
- An inclined surface for allowing the terminal 4 to be inserted easily, is formed on each of the lower side ends of the terminal restricting units 29 a and 29 b .
- the end-to-end distance of the inclined surface in the width direction increases toward the lower side.
- the bus bar 3 is electrically connected to the electronic component 5 .
- the bus bar 3 in the present embodiment distributes and supplies power that is supplied from the power source, which is not illustrated, to various electronic instruments mounted on a vehicle that are electrically connected to the bus bar 3 , via the electronic components 5 and the terminals 4 .
- the bus bar 3 includes the rectangular unit 30 and a power source side holding unit 31 .
- the bus bar 3 is formed in a planar shape, and the rectangular unit 30 and the power source side holding unit 31 are integrally formed.
- the rectangular unit 30 When the bus bar 3 is accommodated in the inner space portion 2 a , the rectangular unit 30 is accommodated in the power source space portion 2 b and the accommodation space portion 2 c , and the power source side holding unit 31 is accommodated in the power source space portion 2 b . In addition, the rectangular unit 30 is inserted into the slit 25 a via the slit 21 a , and exposed to each of the divided space portions 2 k . The rectangular unit 30 is formed so that the upper side end becomes narrower in the upward direction. The rectangular unit 30 functions as a tab unit in the bus bar 3 , by being electrically connected to each of the electronic components 5 in each of the divided space portions 2 k .
- a through hole 30 a is formed on the rectangular unit 30 at a portion where the rectangular unit 30 is positioned in the power source space portion 2 b .
- a stud bolt that is electrically connected to the power source, which is not illustrated, is to be inserted into the through hole 30 a .
- the power source side holding unit 31 fixes the electric wire and the like that is connected to the stud bolt inserted into the through hole 30 a.
- the terminal 4 is electrically connected to the electronic component 5 .
- the terminal 4 is fitted to one of the ends of an electric wire, and is electrically connected to various electronic instruments that are mounted on the vehicle being electrically connected to the other end of the electric wire.
- the terminal 4 is accommodated in the accommodation space portion 2 c , in other words, in each of the terminal side divided space portions 2 j , while the electric wire is being fitted thereto.
- the terminal 4 is made of metal, and includes a terminal tab unit 4 a in a planar shape that is formed in a rectangular shape, and an electric wire crimping unit 4 b in a tubular shape that is coupled to the terminal tab unit 4 a in the wiring direction of the electric wire.
- the terminal tab unit 4 a is electrically connected to a load side connection unit 53 by being inserted into the electronic component 5 .
- the electric wire crimping unit 4 b fixes the terminal 4 while the electric wire is electrically connected to the terminal 4 , by crimping the electric wire disposed inside.
- the terminal tab unit 4 a is formed so that the upper side end (tip end portion) becomes narrower in the upward direction.
- the electronic component 5 electrically connects the bus bar 3 and the terminal 4 , and in this example, the electronic component 5 is an element that exerts various functions.
- the electronic component 5 in the present embodiment is a female fusible link 51 that has a slit in the connection portion.
- the fusible link 51 is incorporated into a part of a power distribution circuit, and shuts off the power distribution circuit when an overcurrent flows.
- the fusible link 51 includes a power source side connection unit 52 and the load side connection unit 53 .
- the power source side connection unit 52 is connected to the bus bar 3 that functions as a terminal at the power source side such as a battery.
- the load side connection unit 53 is connected to the terminal 4 at the load side of various electronic instruments in the vehicle.
- the power source side connection unit 52 and the load side connection unit 53 are electrically connected via a conductive fusible element in a plate shape.
- a conductive fusible element in a plate shape.
- the fusible element melts when an overcurrent flows through the fusible element, and shuts off the electrical connection between the power source side connection unit 52 and the load side connection unit 53 .
- the overcurrent that flows through the fusible element is current of a predetermined rated current or more, and the fusible element is melted when the current of the predetermined rated current or more flows through the fusible element.
- the connection units have various shapes depending on the terminals to be connected.
- a slit is formed on each of the connection units.
- a worker inserts a stud bolt into the through hole 30 a of the bus bar 3 and fixes the stud bolt.
- the worker fixes the electric wire or the like that is connected to the stud bolt by the power source side holding unit 31 . Consequently, the bus bar 3 is electrically connected to the power source.
- the worker then inserts the bus bar 3 upward from the lower side opening 2 d toward the bus bar side space portion 2 h of the accommodation member 2 .
- a part of the rectangular unit 30 of the bus bar 3 is positioned inside the accommodation space portion 2 c
- the power source side holding unit 31 is positioned in the power source space portion 2 b .
- the worker inserts the bus bar 3 further upward. Consequently, the upper side end of the bus bar 3 , in other words, the upper side end of the rectangular unit 30 is inserted into the slit 25 a via the slit 21 a , a part of the rectangular unit 30 is inserted into the slit 25 a , and a part of the rectangular unit 30 is positioned between the adjacent slits 25 a , in other words, in the divided space portion 2 k .
- the bus bar 3 crosses over the bus bar holding unit 26 while elastically deforming the bus bar holding unit 26 , and is positioned above the bus bar holding unit 26 .
- the bus bar 3 is held against the accommodation member 2 while the rectangular unit 30 is exposed to the inside of the divided space portions 2 k.
- the worker inserts each of the terminals 4 upward from the lower side opening 2 d toward each of the terminal side divided space portions 2 j of the accommodation member 2 .
- the worker inserts each of the terminals 4 further upward. Consequently, the upper side end of the terminal 4 , in other words, the terminal tab unit 4 a is positioned in each of the divided space portions 2 k , via the positioning bottom plate 21 and the inner wall surface 20 d .
- the terminal tab unit 4 a of the terminal 4 crosses over the terminal holding unit 28 while elastically deforming the terminal holding unit 28 , and the terminal holding unit 28 is positioned in the recess portion.
- the terminal 4 is held against the accommodation member 2 while the terminal tab unit 4 a is exposed to the inside of the divided space portion 2 k.
- the worker inserts each of the fusible links 51 , which are the electronic components 5 , downward from the upper side opening 2 e to each of the divided space portions 2 k .
- the fusible link 51 is inserted downward, while the power source side connection unit 52 and the load side connection unit 53 are facing the bus bar 3 and the terminal tab unit 4 a that are being exposed, in the vertical direction.
- the worker inserts each of the fusible links 51 further downward. Consequently, the rectangular unit 30 is inserted into the power source side connection unit 52 , and the terminal tab unit 4 a , in other words, the terminal 4 is inserted into the load side connection unit 53 .
- the worker inserts each of the fusible links 51 further downward so that the lower side end of the fusible link 51 comes into contact with the positioning bottom plate 21 and the protrusion portion 24 .
- the electronic component 5 is accommodated in the accommodation space portion 2 c .
- the above procedure allows the power source such as the battery, the bus bar 3 , the electronic component 5 , the terminal 4 , and the various electronic instruments to be electrically connected in the accommodation space portion 2 c of the accommodation member 2 , thereby configuring the electronic component unit 1 .
- the terminal 4 is accommodated in the accommodation member 2 , after the bus bar 3 is accommodated in the accommodation member 2 .
- the assembly procedure is not limited thereto and the terminal 4 may be accommodated in the accommodation member 2 before the bus bar 3 .
- the electronic component unit 1 provides the slit 25 a into which the rectangular unit 30 of the bus bar 3 is to be inserted, on the dividing wall 25 that is interposed between the adjacent divided space portions 2 k in the accommodation member 2 .
- the bus bar 3 is held while the rectangular unit 30 is inserted into the slit 25 a . Consequently, it is possible to allow the rectangular unit 30 to penetrate through the dividing wall 25 , and expose the rectangular unit 30 to the inside of the divided space portions 2 k that are adjacent to each other interposing the dividing wall 25 therebetween.
- the single rectangular unit 30 of the bus bar 3 functions as the tab unit as well as the connection unit. Consequently, it is possible to form the external shape of the bus bar 3 into a single rectangular shape, and simplify the external shape. In this manner, it is possible to electrically connect the bus bar 3 and each of the electronic components 5 inside of each of the divided space portions 2 k , and simplify the external shape of the bus bar 3 .
- the transfer shape of a mold for molding the bus bar 3 can also be simplified.
- the tab unit and the connection unit are integrally formed by the single rectangular unit 30 .
- the shape of the tab unit is not restricted.
- the shape of the tab unit need not depend on the size of the electronic component 5 that is to be accommodated in the divided space portion 2 k , particularly, on the width of the electronic component 5 in the X direction. Consequently, even if the size of the accommodation member 2 is the same, and the widths of the electronic components 5 that are to be accommodated differ in the X direction (even if the number of divided space portions 2 k to be formed in the accommodation member 2 is changed), it is possible to use the same bus bar 3 . Hence, it is possible to improve the versatility of the bus bar 3 , and reduce the manufacturing cost.
- the bus bar 3 when focusing on a portion where the electronic component 5 is electrically connected (portion corresponding to the tab unit), compared with when the tab units are independently formed, the space between the adjacent portions corresponding to the tab units is filled. Consequently, it is possible to increase the volume of the bus bar 3 . In this manner, even if the electronic component 5 generates heat when power is supplied to the electronic component 5 , the bus bar 3 can move a larger amount of heat. In addition, it is possible to improve the heat dissipation of the moved heat in the bus bar 3 . Furthermore, it is possible to improve the strength of the bus bar 3 , because the tab units are formed into the single rectangular unit 30 .
- the rectangular unit 30 can be exposed to the inside of the adjacent divided space portions 2 k interposing the dividing wall 25 , by holding the bus bar 3 while the rectangular unit 30 is inserted into the slit 25 a . Hence, it is possible to electrically connect the bus bar 3 and each of the electronic components 5 inside the divided space portions 2 k , and simplify the external shape of the bus bar 3 .
- FIG. 5 is a perspective view of a bus bar according to the second embodiment.
- FIG. 6 is a schematic view of the bus bar according to the second embodiment.
- the electronic component unit according to the second embodiment is different from the electronic component unit 1 according to the first embodiment in the shape of a bus bar 6 . Overlapping description of the same configuration, actions, and effects as those in the first embodiment described above is omitted as much as possible.
- the bus bar 6 is electrically connected to the electronic component 5 and an electronic component, which is not illustrated. As illustrated in FIG. 5 and FIG. 6 , the bus bar 6 in the present embodiment is formed in a planar shape, and includes a first rectangular unit 60 , a second rectangular unit 61 , and a fork terminal unit 62 .
- the first rectangular unit 60 corresponds to the rectangular unit 30 in the first embodiment, and the end of the first rectangular unit 60 at the second rectangular unit 61 side in the longitudinal direction is coupled to the second rectangular unit 61 .
- the upper end of the first rectangular unit 60 opposite to the second rectangular unit 61 side in the longitudinal direction is coupled to the fork terminal unit 62 .
- the first rectangular unit 60 and the second rectangular unit 61 may be orthogonal to each other or intersecting with each other, when viewed from the vertical direction.
- the second rectangular unit 61 engages the bus bar 6 that is held against the accommodation member 2 by the bus bar holding unit 26 .
- the end of the second rectangular unit 61 at the first rectangular unit 60 side in the width direction is coupled to the first rectangular unit 60 .
- An engagement hole 61 c that penetrates through a first wall surface 61 a and a second wall surface 61 b is formed on the second rectangular unit 61 in the middle of the width direction.
- the fork terminal unit 62 electrically connects the bus bar 6 and the electronic component, which is not illustrated, by gripping the electronic component, which is not illustrated.
- the fork terminal unit 62 includes a pair of extension units 62 a and a slit 62 b .
- the pair of extension units 62 a are separated in the longitudinal direction, and extend upward from the upper side end of the first rectangular unit 60 .
- the slit 62 b is a space between the pair of extension units 62 a , and a portion into which the electronic component, which is not illustrated, is to be inserted.
- the accommodation member 2 is a member that accommodates therein the bus bar 6 , the terminal 4 , the electronic component 5 , and the electronic component, which is not illustrated. As illustrated in FIG. 6 , the accommodation member 2 includes a main body unit 200 and an extension unit 201 (alternate long and two short dashes line in FIG. 6 ).
- the accommodation space portion 2 c in the first embodiment is formed in the main body unit 200 , and the divided space portions 2 k are formed in the main body unit 200 by the dividing wall 25 .
- the main body unit 200 accommodates therein the first rectangular unit 60 .
- the end of the main body unit 200 at the extension unit 201 side in the longitudinal direction, is coupled to the extension unit 201 .
- a distance between the bus bar holding unit 26 and the upper side end of the slit 25 a is set longer than the length of the first rectangular unit 60 in the vertical direction.
- space is formed between the upper side end of the first rectangular unit 60 and the upper side end of the slit 25 a.
- the extension unit 201 accommodates therein a part of the bus bar 6 , in other words, the second rectangular unit 61 .
- the extension unit 201 includes a first wall 202 , a second wall 203 , an extension space portion 204 , an engagement protrusion, which is not illustrated, and a movement restriction unit 205 .
- the first wall 202 extends in the extending direction of the extension unit 201 , in other words, the width direction.
- the first wall 202 faces the second wall surface 61 b of the second rectangular unit 61 in the longitudinal direction.
- the second wall 203 extends in the width direction in parallel with the first wall 202 .
- the second wall 203 faces the first wall surface 61 a of the second rectangular unit 61 in the longitudinal direction.
- the extension space portion 204 is formed between the first wall 202 and the second wall 203 .
- the extension space portion 204 When viewed from the width direction, the extension space portion 204 is longer than the thickness of the second rectangular unit 61 , in other words, is formed at a wider interval.
- space is formed between the second rectangular unit 61 and the first wall 202 as well as between the second rectangular unit 61 and the second wall 203 .
- the engagement protrusion protrudes from the second wall 203 to the extension space portion 204 , and is inserted into the engagement hole 61 c .
- the bus bar 6 is prevented from falling off from the accommodation member 2 .
- the bus bar 6 can move relative to the accommodation member 2 within a predetermined range.
- the first wall 202 and the second wall 203 are coupled at the ends opposite from the main body unit 200 side.
- the movement restriction unit 205 restricts the movement of the bus bar 6 relative to the accommodation member 2 inside the accommodation member 2 .
- the movement restriction unit 205 faces a portion to which the insertion force of the electronic component, which is not illustrated, is applied on the bus bar 6 located in the same direction, as well as a portion holding the bus bar 6 , in a direction intersecting the same direction and in a state being separated from the bus bar 6 .
- the movement restriction unit 205 in the present embodiment faces the fork terminal unit 62 and the bus bar holding unit 26 formed in the longitudinal direction, in the width direction being the orthogonal direction.
- the movement restriction unit 205 also faces the second rectangular unit 61 in the longitudinal direction.
- the movement restriction unit 205 is provided between the second rectangular unit 61 and the first wall 202 , and protrudes from the wall surface that faces the second rectangular unit 61 of the first wall 202 , toward the second rectangular unit 61 .
- the movement restriction unit 205 is formed on the lower side end of the first wall 202 that faces at least the lower side end of the second wall surface 61 b of the second rectangular unit 61 , in the longitudinal direction.
- the movement restriction unit 205 is designed so as to come into contact with the second rectangular unit 61 , before the first rectangular unit 60 comes into contact with the upper side end of slit 25 a.
- the bus bar holding unit 26 functions as a fulcrum, and when viewed from the width direction, the rotation force to rotate the bus bar 6 around the bus bar holding unit 26 is applied.
- the portion of the first rectangular unit 60 that is placed at the second rectangular unit 61 side than the bus bar holding unit 26 as well as the second rectangular unit 61 try to rotate in counterclockwise directions C 2 and C 3 .
- the distance between the second rectangular unit 61 and the bus bar holding unit 26 is the longest, and changes largely.
- the lower side end of the second rectangular unit 61 tries to start moving in the direction opposite from the fork terminal unit 62 side in the upward direction as well as the longitudinal direction.
- the second rectangular unit 61 comes into contact with the movement restriction unit 205 .
- the rotation of the bus bar 6 around the bus bar holding unit 26 in the counterclockwise direction is suppressed. In other words, it is possible to prevent the insertion force in the downward direction C 1 from being used for rotating the bus bar 6 around the bus bar holding unit 26 in the counterclockwise direction.
- the second rectangular unit 61 and the movement restriction unit 205 are separated.
- the second rectangular unit 61 and the movement restriction unit 205 may be provided so as to come into contact with each other.
- the movement restriction unit 205 may be formed on the second wall 203 .
- the movement restriction unit 205 in the vertical direction, is to be formed on the upper side end of the second wall 203 that faces at least the upper side end of the first wall surface 61 a of the second rectangular unit 61 in the longitudinal direction.
- the movement restriction unit 205 may be formed on both the first wall 202 and the second wall 203 .
- the two movement restriction units 205 can interpose the second rectangular unit 61 in the vertical direction as well as the longitudinal direction, in a diagonal manner.
- the rotation of the bus bar 6 around the bus bar holding unit 26 in the counterclockwise direction can be further suppressed, thereby further suppressing the bus bar 6 from deforming.
- the electronic component unit and the electrical connection box according to the present embodiments can electrically connect each of the electronic components that is accommodated in each of the divided space portions and the rectangular unit of the bus bar, because the slit into which the rectangular unit of the bus bar is to be inserted is provided on the dividing wall that is interposed between the adjacent divided space portions in the accommodation member, thereby enabling the exposure of the rectangular unit to the inside of the divided space portions. Consequently, it is possible to electrically connect the bus bar and each of the electronic components in each of the divided space portions, and simplify the external shape of the bus bar.
Abstract
Description
- The present application claims priority to and incorporates by reference the entire contents of Japanese Patent Application No. 2016-012150 filed in Japan on Jan. 26, 2016.
- 1. Field of the Invention
- The present invention relates to an electronic component unit and an electrical connection box.
- 2. Description of the Related Art
- Conventionally, an electrical connection box that is mounted on a vehicle such as an automobile, and that distributes power from a power source such as a battery to electronic instruments has been known. A known electrical connection box such as the above is an electrical connection box that includes an electronic component unit provided with a bus bar on which electronic components such as a fusible link, a fuse, and a relay are mounted, and an accommodation member that accommodates therein the bus bar; and a housing that accommodates therein the electronic component unit (see Japanese Patent Application Laid-open No. 2011-155762).
- The electronic component unit described above includes a plurality of electronic components, and there are times when all the electronic components are to be electrically connected to a single electrical connection unit such as a power terminal from a power source, for example. In this case, the bus bar includes a tab unit for each of the electronic components, and a single connection unit connected to the tab units. More specifically, each of the tab units of the bus bar is formed in a rectangular shape, and an end of each of the tab units in the insertion direction of the electronic component is coupled to a connection unit formed in a strip shape. The inner space portion of the accommodation member is divided by dividing walls, forming divided space portions (cavities). When the bus bar is accommodated in the accommodation member, each of the tab units is positioned inside each of the divided space portions. The electronic component that is accommodated in the divided space portion is mounted on each of the tab units inside each of the divided space portions, and each of the tab units and the electronic component are electrically connected inside each of the divided space portions.
- Because the bus bar described above is configured of the tab units and the single connection unit, the external shape of the bus bar becomes complicated in shape. Consequently, there is room for further improvement.
- The present invention has been made in view of the above, and an object of the present invention is to provide an electronic component unit and an electrical connection box that can electrically connect a bus bar and each of electronic components inside each of divided space portions, and that can simplify the external shape of the bus bar.
- In order to achieve the above mentioned object, an electronic component unit according to one aspect of the present invention includes an accommodation member that includes a first opening and a second opening for communicating an accommodation space portion; a plurality of electronic components that are accommodated in the accommodation space portion by being inserted into the accommodation space portion from the second opening; and a bus bar in a planar shape that is accommodated in the accommodation space portion by being inserted into the accommodation space portion from the first opening, and that includes a rectangular unit, wherein the accommodation member includes a dividing wall that couples inner wall surfaces facing each other in a peripheral wall for forming the accommodation space portion, in the accommodation space portion, and that forms divided space portions by dividing the accommodation space portion, the dividing wall is provided with a slit that extends from an end of the first opening side toward the second opening, and that communicates the adjacent divided space portions, the rectangular unit of the bus bar is exposed to inside of each of the divided space portions, when the rectangular unit is held by being inserted into the slit, and the electronic components are individually accommodated in the respective divided space portions, and are connected to the rectangular unit being exposed.
- In order to achieve the above mentioned object, an electrical connection box according to another aspect of the present invention includes a housing; and an electronic component unit that is accommodated in a housing inner space portion of the housing, wherein the electronic component unit includes an accommodation member having a first opening and a second opening that communicate an accommodation space portion of the electronic component unit, a plurality of electronic components that are accommodated in the accommodation space portion by being inserted into the accommodation space portion from the second opening, and a bus bar in a planar shape that is accommodated in the accommodation space portion by being inserted into the accommodation space portion from the first opening, and that includes a rectangular unit, the accommodation member includes a dividing wall that couples inner wall surfaces facing each other in a peripheral wall for forming the accommodation space portion, in the accommodation space portion, and that forms divided space portions by dividing the accommodation space portion, the dividing wall is provided with a slit that extends from an end of the first opening side toward the second opening, and that communicates the adjacent divided space portions, the rectangular unit of the bus bar is exposed to inside of each of the divided space portions, when the rectangular unit is held by being inserted into the slit, and the electronic components are individually accommodated in the respective divided space portions, and are connected to the rectangular unit being exposed.
- The above and other objects, features, advantages and technical and industrial significance of this invention will be better understood by reading the following detailed description of presently preferred embodiments of the invention, when considered in connection with the accompanying drawings.
-
FIG. 1 is a partial perspective view illustrating a schematic configuration of an electronic component unit and an electrical connection box according to a first embodiment; -
FIG. 2 is an exploded perspective view of the electronic component unit according to the first embodiment; -
FIG. 3 is a sectional view of the electronic component unit according to the first embodiment; -
FIG. 4 is a sectional view of the electronic component unit according to the first embodiment; -
FIG. 5 is a perspective view of a bus bar according to a second embodiment; and -
FIG. 6 is a schematic view of the bus bar according to the second embodiment. - Preferred embodiments of an electronic component unit and an electrical connection box according to the present invention will now be described in detail with reference to the accompanying drawings. It is to be understood that the present invention is not limited to the embodiments. In addition, components in the following embodiments include those that can be easily assumed by a person skilled in the art, or those that are substantially the same. Furthermore, various omissions, replacements, and modifications may be made to the components in the following embodiments without departing from the scope and spirit of the invention.
- An electronic component unit and an electrical connection box according to a first embodiment will now be described.
FIG. 1 is a partial perspective view illustrating a schematic configuration of the electronic component unit and the electrical connection box according to the first embodiment.FIG. 2 is an exploded perspective view of the electronic component unit according to the first embodiment.FIG. 3 is a sectional view of the electronic component unit according to the first embodiment.FIG. 4 is a sectional view of the electronic component unit according to the first embodiment. In this example,FIG. 3 is a sectional view cut along a line S-S inFIG. 1 , andFIG. 4 is a sectional view cut along a line R-R inFIG. 1 . The X direction in the drawings is the longitudinal direction of the electronic component unit in the present embodiment. The Y direction is the width direction of the electronic component unit in the present embodiment, and is a direction orthogonal to the longitudinal direction. The Z direction is the vertical direction of the electronic component unit in the present embodiment, and is a direction orthogonal to the width direction as well as the longitudinal direction. The Z1 direction is the upward direction. The Z2 direction is the downward direction. - An
electrical connection box 100 includes ahousing 101 and a housinginner space portion 102 that is formed by thehousing 101. As illustrated inFIG. 1 , theelectrical connection box 100 accommodates at least a singleelectronic component unit 1 in the housinginner space portion 102. Theelectrical connection box 100 integrates and accommodates therein electrical components such as a terminal metal fitting, a relay, and resistance that are incorporated into a wire harness, which is not illustrated, routed in an automobile, and that form a connection processing part such as an electric wire. Theelectrical connection box 100 distributes power supplied from a power source such as a battery, to various electronic instruments in the vehicle. Theelectrical connection box 100 may also be referred to as a junction box, a fuse box, a relay box, and the like, but in the present embodiment, these are collectively referred to as the electrical connection box. - The
electronic component unit 1 in the present embodiment configures a part of a power distribution circuit that distributes power supplied from a power source, which is not illustrated, to various electronic instruments in the vehicle. Theelectronic component unit 1 includes anaccommodation member 2, abus bar 3, a plurality ofterminals 4, and a plurality ofelectronic components 5. - The
accommodation member 2 is a member that accommodates therein thebus bar 3, theterminals 4, and theelectronic components 5. Theaccommodation member 2 facilitates the handling of thebus bar 3, theterminals 4, and theelectronic components 5, by installing therein thebus bar 3, theterminals 4, and theelectronic components 5 2 in advance, before being accommodated in theelectrical connection box 100. For example, theaccommodation member 2 is made of synthetic resin, and as illustrated inFIG. 1 andFIG. 4 , includes aninner space portion 2 a, aperipheral wall 20, apositioning bottom plate 21, apartitioning plate 22, aterminal partitioning plate 23, aprotrusion portion 24, and a dividingwall 25. - The
inner space portion 2 a includes a powersource space portion 2 b and anaccommodation space portion 2 c. Theperipheral wall 20 forms theaccommodation space portion 2 c. Theperipheral wall 20 is formed of a plurality of walls, and the walls are connected with each other, thereby forming a tube in a substantially square shape. Theaccommodation member 2 is communicated with the outside through both ends of theaccommodation space portion 2 c in the vertical direction, by theperipheral wall 20. Theaccommodation member 2 includes a lower side opening (first opening) 2 d that is an opening formed at the lower side, and an upper side opening (second opening) 2 e that is an opening formed at the upper side. In theperipheral wall 20, a slit is formed on a boundary wall between the powersource space portion 2 b and theaccommodation space portion 2 c, and the powersource space portion 2 b and theaccommodation space portion 2 c are communicated via the slit. Theaccommodation space portion 2 c is provided with thepositioning bottom plate 21, thepartitioning plate 22, theterminal partitioning plate 23, theprotrusion portion 24, and thedividing wall 25. - As illustrated in
FIG. 3 andFIG. 4 , thepositioning bottom plate 21 determines the position of each of theelectronic components 5 in the vertical direction (Z direction), by coming into contact with the lower side end of theelectronic component 5 that is accommodated in theaccommodation space portion 2 c. The positioningbottom plate 21 is formed in a planar shape, and both ends of thepositioning bottom plate 21 in the longitudinal direction (X direction) are coupled to aninner wall surface 20 a and aninner wall surface 20 b that are facing each other in the longitudinal direction of theperipheral wall 20. The end of thepositioning bottom plate 21 at aninner wall surface 20 c side (bus bar 3 side) in the width direction (Y direction) is coupled to theinner wall surface 20 c, and the end of thepositioning bottom plate 21 at aninner wall surface 20 d side (terminal 4 side) is separated from theinner wall surface 20 d. The width of thepositioning bottom plate 21 in the width direction is formed so that theterminal 4 can penetrate through the end at theterminal 4 side and theinner wall surface 20 d. As illustrated inFIG. 1 andFIG. 4 , the positioningbottom plate 21 is formed so that when theelectronic component 5 is accommodated in theaccommodation space portion 2 c, the upper side end surface of theelectronic component 5 protrudes from theupper side opening 2 e, in the vertical direction. In this example, theaccommodation space portion 2 c is divided into an upperside space portion 2 f and a lowerside space portion 2 g by the positioningbottom plate 21, the positioningbottom plate 21 being the boundary. As illustrated inFIG. 3 andFIG. 4 , aslit 21 a is formed on thepositioning bottom plate 21. Theslit 21 a penetrates through the positioningbottom plate 21 in the vertical direction, and the upperside space portion 2 f and the lowerside space portion 2 g are communicated via theslit 21 a. Theslit 21 a is formed across the entire longitudinal direction, from theinner wall surface 20 a to theinner wall surface 20 b. The width of theslit 21 a in the width direction is formed so that arectangular unit 30, which will be described below, of thebus bar 3 can penetrate through theslit 21 a, when thebus bar 3 is inserted into theaccommodation space portion 2 c. - As illustrated in
FIG. 4 , thepartitioning plate 22 is provided in the lowerside space portion 2 g. Thepartitioning plate 22 divides the lowerside space portion 2 g into a bus barside space portion 2 h into which thebus bar 3 is to be inserted, and a terminal side space portion 2 i into which theterminal 4 is to be inserted, in the width direction. Thepartitioning plate 22 is formed in a planar shape, and both ends of thepartitioning plate 22 in the longitudinal direction are coupled to theinner wall surface 20 a and theinner wall surface 20 b. Thepartitioning plate 22 extends downward from the end of thepositioning bottom plate 21 at theterminal 4 side to thelower side opening 2 d. In other words, when viewed from the width direction, an inverted L-shaped plate (wall) that protrudes from theinner wall surface 20 c is formed across the entire longitudinal direction of theaccommodation space portion 2 c, by the positioningbottom plate 21 and thepartitioning plate 22. Consequently, the bus barside space portion 2 h and the upperside space portion 2 f are divided by the positioningbottom plate 21, but the terminal side space portion 2 i and the upperside space portion 2 f are not divided. - As illustrated in
FIG. 4 , theterminal partitioning plate 23 is provided in the terminal side space portion 2 i. A plurality of theterminal partitioning plates 23 are formed in the longitudinal direction. Theterminal partitioning plates 23 divide the terminal side space portion 2 i in the longitudinal direction, and form a plurality of terminal side dividedspace portions 2 j. Each of the terminal side dividedspace portions 2 j in the present embodiment is formed at regular intervals in the longitudinal direction, and accommodates therein theterminal 4 individually. Theterminal partitioning plate 23 is in a planar shape, and is coupled to thepartitioning plate 22 and theinner wall surface 20 d in the width direction. Theterminal partitioning plate 23 extends downward from the upper side end of thepartitioning plate 22 to thelower side opening 2 d, in the vertical direction. - As illustrated in
FIG. 4 , theprotrusion portion 24 is provided in each of the terminal side dividedspace portions 2 j. Theprotrusion portion 24 determines the position of theelectronic component 5 in the vertical direction, with the positioningbottom plate 21, by coming into contact with the lower side end of theelectronic component 5 that is to be accommodated in theaccommodation space portion 2 c. At the upper side end of theterminal partitioning plate 23, when viewed from the vertical direction, theprotrusion portion 24 protrudes into the terminal side dividedspace portion 2 j. Theprotrusion portion 24 of the present embodiment is also coupled to theinner wall surface 20 d. Theprotrusion portion 24 protrudes into each of the adjacent terminal side dividedspace portions 2 j, from theterminal partitioning plate 23. In other words, twoprotrusion portions 24 that are facing each other in the longitudinal direction, are formed in the single terminal side dividedspace portion 2 j. The width of theprotrusion portion 24 in the width direction is formed so that theterminal 4 can penetrate through the end of theprotrusion portion 24 at thebus bar 3 side and thepartitioning plate 22. - As illustrated in
FIG. 2 andFIG. 3 , the dividingwall 25 is provided in the upperside space portion 2 f. A plurality of the dividingwalls 25 are formed in the longitudinal direction, depending on the number ofelectronic components 5 to be accommodated in theaccommodation space portion 2 c. The dividingwalls 25 divide the upperside space portion 2 f in the longitudinal direction, and form dividedspace portions 2 k. Each of the dividingwalls 25 in the present embodiment is formed at regular intervals in the longitudinal direction, and theelectronic components 5 are individually accommodated in the respective dividedspace portions 2 k. Each of the dividingwalls 25 is formed in a planar shape, and is coupled to theinner wall surface 20 c and theinner wall surface 20 d that are facing each other in the longitudinal direction of theperipheral wall 20, in the width direction. The dividingwall 25 protrudes upward from the positioningbottom plate 21 and the upper side end surface of theterminal partitioning plate 23 in the vertical direction, and extends to theupper side opening 2 e. In other words, the dividingwall 25 continues to theterminal partitioning plate 23 in the vertical direction, and forms a single plate with theterminal partitioning plate 23. - A slit 25 a is formed on the dividing
wall 25. Therectangular unit 30 of thebus bar 3 is to be inserted into theslit 25 a. Theslit 25 a is formed upward from the lower side end of the dividingwall 25, in the vertical direction. Theslit 25 a penetrates through the dividingwall 25 in the longitudinal direction, and the adjacent dividedspace portions 2 k are communicated via theslit 25 a. Theslit 25 a faces thepositioning bottom plate 21 in the width direction, and is communicated with theslit 21 a. The upper side end of theslit 25 a is formed at a position lower than the upper side end of the dividingwall 25, to restrict the movement of thebus bar 3 in the upward direction, when thebus bar 3 is inserted into theaccommodation space portion 2 c. - In this example, the bus bar
side space portion 2 h includes a busbar holding unit 26 and busbar restricting units FIG. 3 andFIG. 4 , the busbar holding unit 26 protrudes from theinner wall surface 20 c to the bus barside space portion 2 h. When thebus bar 3 is accommodated in the bus barside space portion 2 h, the busbar holding unit 26 comes into contact with the lower side end of therectangular unit 30 of thebus bar 3, and restricts the movement of thebus bar 3 in the vertical direction, with theslit 25 a. Consequently, the busbar holding unit 26 holds thebus bar 3, while therectangular unit 30 of thebus bar 3 is inserted into theslit 25 a. The busbar holding unit 26 protrudes so as to separate from theinner wall surface 20 c, from the lower side to the upper side in the vertical direction, and is elastically deformable. The busbar restricting units bus bar 3 is inserted between the busbar restricting units bar restricting units bus bar 3 in the width direction. The busbar restricting unit 27 a is formed on the wall facing theinner wall surface 20 c, and extends downward from the lower side end surface of thepositioning bottom plate 21 to thelower side opening 2 d. The busbar restricting unit 27 b is formed on thepartitioning plate 22, and extends downward from the lower side end surface of thepositioning bottom plate 21 to thelower side opening 2 d. An inclined surface for allowing thebus bar 3 to be inserted easily, is formed on each of the lower side ends of the busbar restricting units - A
terminal holding unit 28 andterminal restricting units space portions 2 j. As illustrated inFIG. 4 , theterminal holding unit 28 protrudes from theinner wall surface 20 d to the terminal side dividedspace portion 2 j. When theterminal 4 is accommodated in the terminal side dividedspace portion 2 j, theterminal holding unit 28 is inserted into a recess portion of theterminal 4, and holds theterminal 4 by restricting the movement of theterminal 4 in the vertical direction, with thepartitioning plate 22. Theterminal holding unit 28 protrudes upward so as to separate from theinner wall surface 20 d, from the lower side toward the upper side in the vertical direction. Theterminal holding unit 28 is formed so as to be elastically deformable. Theterminal restricting units terminal 4 is inserted between the terminal restrictingunits terminal restricting units terminal 4 in the width direction. Theterminal restricting unit 29 a is formed on thepartitioning plate 22, and extends downward from the middle of thepartitioning plate 22 to thelower side opening 2 d. Theterminal restricting unit 29 b is formed on a wall corresponding to theinner wall surface 20 d, and extends downward from the lower side end surface of theprotrusion portion 24 to thelower side opening 2 d. An inclined surface for allowing theterminal 4 to be inserted easily, is formed on each of the lower side ends of theterminal restricting units - As illustrated in
FIG. 2 andFIG. 3 , thebus bar 3 is electrically connected to theelectronic component 5. Thebus bar 3 in the present embodiment distributes and supplies power that is supplied from the power source, which is not illustrated, to various electronic instruments mounted on a vehicle that are electrically connected to thebus bar 3, via theelectronic components 5 and theterminals 4. Thebus bar 3 includes therectangular unit 30 and a power sourceside holding unit 31. Thebus bar 3 is formed in a planar shape, and therectangular unit 30 and the power sourceside holding unit 31 are integrally formed. When thebus bar 3 is accommodated in theinner space portion 2 a, therectangular unit 30 is accommodated in the powersource space portion 2 b and theaccommodation space portion 2 c, and the power sourceside holding unit 31 is accommodated in the powersource space portion 2 b. In addition, therectangular unit 30 is inserted into theslit 25 a via theslit 21 a, and exposed to each of the dividedspace portions 2 k. Therectangular unit 30 is formed so that the upper side end becomes narrower in the upward direction. Therectangular unit 30 functions as a tab unit in thebus bar 3, by being electrically connected to each of theelectronic components 5 in each of the dividedspace portions 2 k. A throughhole 30 a is formed on therectangular unit 30 at a portion where therectangular unit 30 is positioned in the powersource space portion 2 b. A stud bolt that is electrically connected to the power source, which is not illustrated, is to be inserted into the throughhole 30 a. The power sourceside holding unit 31 fixes the electric wire and the like that is connected to the stud bolt inserted into the throughhole 30 a. - As illustrated in
FIG. 1 , theterminal 4 is electrically connected to theelectronic component 5. Theterminal 4 is fitted to one of the ends of an electric wire, and is electrically connected to various electronic instruments that are mounted on the vehicle being electrically connected to the other end of the electric wire. Theterminal 4 is accommodated in theaccommodation space portion 2 c, in other words, in each of the terminal side dividedspace portions 2 j, while the electric wire is being fitted thereto. For example, theterminal 4 is made of metal, and includes aterminal tab unit 4 a in a planar shape that is formed in a rectangular shape, and an electricwire crimping unit 4 b in a tubular shape that is coupled to theterminal tab unit 4 a in the wiring direction of the electric wire. Theterminal tab unit 4 a is electrically connected to a loadside connection unit 53 by being inserted into theelectronic component 5. The electricwire crimping unit 4 b fixes theterminal 4 while the electric wire is electrically connected to theterminal 4, by crimping the electric wire disposed inside. Theterminal tab unit 4 a is formed so that the upper side end (tip end portion) becomes narrower in the upward direction. - The
electronic component 5 electrically connects thebus bar 3 and theterminal 4, and in this example, theelectronic component 5 is an element that exerts various functions. Theelectronic component 5 in the present embodiment is a femalefusible link 51 that has a slit in the connection portion. Thefusible link 51 is incorporated into a part of a power distribution circuit, and shuts off the power distribution circuit when an overcurrent flows. As illustrated inFIG. 4 , thefusible link 51 includes a power sourceside connection unit 52 and the loadside connection unit 53. The power sourceside connection unit 52 is connected to thebus bar 3 that functions as a terminal at the power source side such as a battery. The loadside connection unit 53 is connected to theterminal 4 at the load side of various electronic instruments in the vehicle. The power sourceside connection unit 52 and the loadside connection unit 53 are electrically connected via a conductive fusible element in a plate shape. For example, while a low-melting point metal chip is welded to a strip-shaped conductive unit the width of which is narrowed, the fusible element melts when an overcurrent flows through the fusible element, and shuts off the electrical connection between the power sourceside connection unit 52 and the loadside connection unit 53. For example, the overcurrent that flows through the fusible element is current of a predetermined rated current or more, and the fusible element is melted when the current of the predetermined rated current or more flows through the fusible element. The connection units have various shapes depending on the terminals to be connected. In the present embodiment, because a fork terminal is to be disposed inside thefusible link 51, a slit is formed on each of the connection units. When thefusible link 51 is accommodated in the dividedspace portion 2 k, thebus bar 3 is inserted into the power sourceside connection unit 52, and theterminal tab unit 4 a is inserted into the loadside connection unit 53. - Next, an assembly procedure of the
electronic component unit 1 according to the present embodiment will be described. First, a worker inserts a stud bolt into the throughhole 30 a of thebus bar 3 and fixes the stud bolt. The worker then fixes the electric wire or the like that is connected to the stud bolt by the power sourceside holding unit 31. Consequently, thebus bar 3 is electrically connected to the power source. The worker then inserts thebus bar 3 upward from thelower side opening 2 d toward the bus barside space portion 2 h of theaccommodation member 2. During this process, a part of therectangular unit 30 of thebus bar 3 is positioned inside theaccommodation space portion 2 c, and the power sourceside holding unit 31 is positioned in the powersource space portion 2 b. The worker inserts thebus bar 3 further upward. Consequently, the upper side end of thebus bar 3, in other words, the upper side end of therectangular unit 30 is inserted into theslit 25 a via theslit 21 a, a part of therectangular unit 30 is inserted into theslit 25 a, and a part of therectangular unit 30 is positioned between theadjacent slits 25 a, in other words, in the dividedspace portion 2 k. During this process, thebus bar 3 crosses over the busbar holding unit 26 while elastically deforming the busbar holding unit 26, and is positioned above the busbar holding unit 26. Thus, thebus bar 3 is held against theaccommodation member 2 while therectangular unit 30 is exposed to the inside of the dividedspace portions 2 k. - Next, the worker inserts each of the
terminals 4 upward from thelower side opening 2 d toward each of the terminal side dividedspace portions 2 j of theaccommodation member 2. The worker inserts each of theterminals 4 further upward. Consequently, the upper side end of theterminal 4, in other words, theterminal tab unit 4 a is positioned in each of the dividedspace portions 2 k, via thepositioning bottom plate 21 and theinner wall surface 20 d. During the process, theterminal tab unit 4 a of theterminal 4 crosses over theterminal holding unit 28 while elastically deforming theterminal holding unit 28, and theterminal holding unit 28 is positioned in the recess portion. Thus, theterminal 4 is held against theaccommodation member 2 while theterminal tab unit 4 a is exposed to the inside of the dividedspace portion 2 k. - Next, while the
rectangular unit 30 and theterminal tab unit 4 a are exposed to the inside of the dividedspace portions 2 k, the worker inserts each of thefusible links 51, which are theelectronic components 5, downward from theupper side opening 2 e to each of the dividedspace portions 2 k. During the process, thefusible link 51 is inserted downward, while the power sourceside connection unit 52 and the loadside connection unit 53 are facing thebus bar 3 and theterminal tab unit 4 a that are being exposed, in the vertical direction. The worker inserts each of thefusible links 51 further downward. Consequently, therectangular unit 30 is inserted into the power sourceside connection unit 52, and theterminal tab unit 4 a, in other words, theterminal 4 is inserted into the loadside connection unit 53. The worker inserts each of thefusible links 51 further downward so that the lower side end of thefusible link 51 comes into contact with the positioningbottom plate 21 and theprotrusion portion 24. Thus, theelectronic component 5 is accommodated in theaccommodation space portion 2 c. The above procedure allows the power source such as the battery, thebus bar 3, theelectronic component 5, theterminal 4, and the various electronic instruments to be electrically connected in theaccommodation space portion 2 c of theaccommodation member 2, thereby configuring theelectronic component unit 1. In the assembly procedure described above, theterminal 4 is accommodated in theaccommodation member 2, after thebus bar 3 is accommodated in theaccommodation member 2. However, the assembly procedure is not limited thereto and theterminal 4 may be accommodated in theaccommodation member 2 before thebus bar 3. - As described above, the
electronic component unit 1 according to the present embodiment provides theslit 25 a into which therectangular unit 30 of thebus bar 3 is to be inserted, on the dividingwall 25 that is interposed between the adjacent dividedspace portions 2 k in theaccommodation member 2. Thus, thebus bar 3 is held while therectangular unit 30 is inserted into theslit 25 a. Consequently, it is possible to allow therectangular unit 30 to penetrate through the dividingwall 25, and expose therectangular unit 30 to the inside of the dividedspace portions 2 k that are adjacent to each other interposing the dividingwall 25 therebetween. Hence, it is possible to electrically connect each of theelectronic components 5 that is to be accommodated in each of the dividedspace portions 2 k, and a singlerectangular unit 30 of thebus bar 3. In other words, compared with a bus bar having a shape in which each of the tab units is independently provided and the tab units are coupled to the connection unit, the singlerectangular unit 30 of thebus bar 3 functions as the tab unit as well as the connection unit. Consequently, it is possible to form the external shape of thebus bar 3 into a single rectangular shape, and simplify the external shape. In this manner, it is possible to electrically connect thebus bar 3 and each of theelectronic components 5 inside of each of the dividedspace portions 2 k, and simplify the external shape of thebus bar 3. - By simplifying the external shape of the
bus bar 3, the transfer shape of a mold for molding thebus bar 3 can also be simplified. Thus, it is possible to reduce manufacturing cost and maintenance cost of the mold. In addition, compared with the bus bar having the shape in which each of the tab units is independently provided and the tab units are coupled to the connection unit, the tab unit and the connection unit are integrally formed by the singlerectangular unit 30. Thus, there is no need to have length for forming the tab unit in the vertical direction. Consequently, it is possible to reduce the length in the vertical direction. Furthermore, compared with the bus bar having the shape in which each of the tab units is independently provided and the tab units are coupled to the connection unit, the shape of the tab unit is not restricted. Thus, the shape of the tab unit need not depend on the size of theelectronic component 5 that is to be accommodated in the dividedspace portion 2 k, particularly, on the width of theelectronic component 5 in the X direction. Consequently, even if the size of theaccommodation member 2 is the same, and the widths of theelectronic components 5 that are to be accommodated differ in the X direction (even if the number of dividedspace portions 2 k to be formed in theaccommodation member 2 is changed), it is possible to use thesame bus bar 3. Hence, it is possible to improve the versatility of thebus bar 3, and reduce the manufacturing cost. In addition, in thebus bar 3, when focusing on a portion where theelectronic component 5 is electrically connected (portion corresponding to the tab unit), compared with when the tab units are independently formed, the space between the adjacent portions corresponding to the tab units is filled. Consequently, it is possible to increase the volume of thebus bar 3. In this manner, even if theelectronic component 5 generates heat when power is supplied to theelectronic component 5, thebus bar 3 can move a larger amount of heat. In addition, it is possible to improve the heat dissipation of the moved heat in thebus bar 3. Furthermore, it is possible to improve the strength of thebus bar 3, because the tab units are formed into the singlerectangular unit 30. - In the
electrical connection box 100 according to the present embodiment, therectangular unit 30 can be exposed to the inside of the adjacent dividedspace portions 2 k interposing the dividingwall 25, by holding thebus bar 3 while therectangular unit 30 is inserted into theslit 25 a. Hence, it is possible to electrically connect thebus bar 3 and each of theelectronic components 5 inside the dividedspace portions 2 k, and simplify the external shape of thebus bar 3. - Next, an electronic component unit and an electrical connection box according to a second embodiment will be described.
FIG. 5 is a perspective view of a bus bar according to the second embodiment.FIG. 6 is a schematic view of the bus bar according to the second embodiment. The electronic component unit according to the second embodiment is different from theelectronic component unit 1 according to the first embodiment in the shape of abus bar 6. Overlapping description of the same configuration, actions, and effects as those in the first embodiment described above is omitted as much as possible. - The
bus bar 6 is electrically connected to theelectronic component 5 and an electronic component, which is not illustrated. As illustrated inFIG. 5 andFIG. 6 , thebus bar 6 in the present embodiment is formed in a planar shape, and includes a firstrectangular unit 60, a secondrectangular unit 61, and afork terminal unit 62. - The first
rectangular unit 60 corresponds to therectangular unit 30 in the first embodiment, and the end of the firstrectangular unit 60 at the secondrectangular unit 61 side in the longitudinal direction is coupled to the secondrectangular unit 61. The upper end of the firstrectangular unit 60 opposite to the secondrectangular unit 61 side in the longitudinal direction is coupled to thefork terminal unit 62. In thebus bar 6 of the present embodiment, the firstrectangular unit 60 and the secondrectangular unit 61 may be orthogonal to each other or intersecting with each other, when viewed from the vertical direction. - The second
rectangular unit 61 engages thebus bar 6 that is held against theaccommodation member 2 by the busbar holding unit 26. The end of the secondrectangular unit 61 at the firstrectangular unit 60 side in the width direction is coupled to the firstrectangular unit 60. Anengagement hole 61 c that penetrates through afirst wall surface 61 a and asecond wall surface 61 b is formed on the secondrectangular unit 61 in the middle of the width direction. - The
fork terminal unit 62 electrically connects thebus bar 6 and the electronic component, which is not illustrated, by gripping the electronic component, which is not illustrated. Thefork terminal unit 62 includes a pair ofextension units 62 a and aslit 62 b. The pair ofextension units 62 a are separated in the longitudinal direction, and extend upward from the upper side end of the firstrectangular unit 60. Theslit 62 b is a space between the pair ofextension units 62 a, and a portion into which the electronic component, which is not illustrated, is to be inserted. - The
accommodation member 2 is a member that accommodates therein thebus bar 6, theterminal 4, theelectronic component 5, and the electronic component, which is not illustrated. As illustrated inFIG. 6 , theaccommodation member 2 includes amain body unit 200 and an extension unit 201 (alternate long and two short dashes line inFIG. 6 ). - The
accommodation space portion 2 c in the first embodiment is formed in themain body unit 200, and the dividedspace portions 2 k are formed in themain body unit 200 by the dividingwall 25. Themain body unit 200 accommodates therein the firstrectangular unit 60. The end of themain body unit 200 at theextension unit 201 side in the longitudinal direction, is coupled to theextension unit 201. In this example, in a holding state in which thebus bar 6 is held by the busbar holding unit 26, a distance between the busbar holding unit 26 and the upper side end of theslit 25 a is set longer than the length of the firstrectangular unit 60 in the vertical direction. In other words, in the holding state, when the firstrectangular unit 60 comes into contact with the busbar holding unit 26, in thebus bar 6, space is formed between the upper side end of the firstrectangular unit 60 and the upper side end of theslit 25 a. - The
extension unit 201 accommodates therein a part of thebus bar 6, in other words, the secondrectangular unit 61. Theextension unit 201 includes afirst wall 202, asecond wall 203, anextension space portion 204, an engagement protrusion, which is not illustrated, and amovement restriction unit 205. Thefirst wall 202 extends in the extending direction of theextension unit 201, in other words, the width direction. In an accommodated state in which thebus bar 6 is accommodated in theaccommodation member 2, thefirst wall 202 faces thesecond wall surface 61 b of the secondrectangular unit 61 in the longitudinal direction. Thesecond wall 203 extends in the width direction in parallel with thefirst wall 202. In the accommodated state, thesecond wall 203 faces thefirst wall surface 61 a of the secondrectangular unit 61 in the longitudinal direction. In this example, theextension space portion 204 is formed between thefirst wall 202 and thesecond wall 203. - When viewed from the width direction, the
extension space portion 204 is longer than the thickness of the secondrectangular unit 61, in other words, is formed at a wider interval. In the accommodated state, space is formed between the secondrectangular unit 61 and thefirst wall 202 as well as between the secondrectangular unit 61 and thesecond wall 203. For example, the engagement protrusion protrudes from thesecond wall 203 to theextension space portion 204, and is inserted into theengagement hole 61 c. When the engagement protrusion is inserted into theengagement hole 61 c, thebus bar 6 is prevented from falling off from theaccommodation member 2. Even while the engagement protrusion is inserted into theengagement hole 61 c, thebus bar 6 can move relative to theaccommodation member 2 within a predetermined range. In the present embodiment, thefirst wall 202 and thesecond wall 203 are coupled at the ends opposite from themain body unit 200 side. - The
movement restriction unit 205 restricts the movement of thebus bar 6 relative to theaccommodation member 2 inside theaccommodation member 2. Themovement restriction unit 205 faces a portion to which the insertion force of the electronic component, which is not illustrated, is applied on thebus bar 6 located in the same direction, as well as a portion holding thebus bar 6, in a direction intersecting the same direction and in a state being separated from thebus bar 6. Themovement restriction unit 205 in the present embodiment faces thefork terminal unit 62 and the busbar holding unit 26 formed in the longitudinal direction, in the width direction being the orthogonal direction. Themovement restriction unit 205 also faces the secondrectangular unit 61 in the longitudinal direction. Themovement restriction unit 205 is provided between the secondrectangular unit 61 and thefirst wall 202, and protrudes from the wall surface that faces the secondrectangular unit 61 of thefirst wall 202, toward the secondrectangular unit 61. In the vertical direction, themovement restriction unit 205 is formed on the lower side end of thefirst wall 202 that faces at least the lower side end of thesecond wall surface 61 b of the secondrectangular unit 61, in the longitudinal direction. In this example, when thebus bar 6, which will be described below, rotates around the busbar holding unit 26 in the counterclockwise direction, themovement restriction unit 205 is designed so as to come into contact with the secondrectangular unit 61, before the firstrectangular unit 60 comes into contact with the upper side end ofslit 25 a. - Next, an action of the
bus bar 6 when the electronic component, which is not illustrated, is inserted into thefork terminal unit 62 will be described. As illustrated inFIG. 6 , when the electronic component is inserted downward into thefork terminal unit 62, the insertion force in a downward direction C1 is applied to thefork terminal unit 62. During the process, the external force is applied to thebus bar 6 in the downward direction C1 due to the insertion force, and the busbar holding unit 26 comes into contact with thebus bar 6. When viewed from the width direction, thefork terminal unit 62 to which the insertion force in the downward direction C1 is applied and the busbar holding unit 26 that holds thebus bar 6 from the downward direction are separated. Thus, the busbar holding unit 26 functions as a fulcrum, and when viewed from the width direction, the rotation force to rotate thebus bar 6 around the busbar holding unit 26 is applied. Hence, when viewed from the longitudinal direction, the portion of the firstrectangular unit 60 that is placed at the secondrectangular unit 61 side than the busbar holding unit 26 as well as the secondrectangular unit 61 try to rotate in counterclockwise directions C2 and C3. - The distance between the second
rectangular unit 61 and the busbar holding unit 26 is the longest, and changes largely. Thus, the lower side end of the secondrectangular unit 61 tries to start moving in the direction opposite from thefork terminal unit 62 side in the upward direction as well as the longitudinal direction. However, because the lower side end of the secondrectangular unit 61 faces themovement restriction unit 205 in the longitudinal direction, the secondrectangular unit 61 comes into contact with themovement restriction unit 205. Hence, the rotation of thebus bar 6 around the busbar holding unit 26 in the counterclockwise direction is suppressed. In other words, it is possible to prevent the insertion force in the downward direction C1 from being used for rotating thebus bar 6 around the busbar holding unit 26 in the counterclockwise direction. Consequently, it is possible to prevent the insertion force that is generated when the electronic component, which is not illustrated, is inserted into thefork terminal unit 62 from being increased. In this manner, it is possible to prevent thebus bar 6 from deforming, that occurs when theelectronic component 5 is inserted into thebus bar 6, and improve the connection reliability between theelectronic component 5 and thebus bar 6. - In the second embodiment described above, in the holding state, the second
rectangular unit 61 and themovement restriction unit 205 are separated. However, the secondrectangular unit 61 and themovement restriction unit 205 may be provided so as to come into contact with each other. In addition, themovement restriction unit 205 may be formed on thesecond wall 203. In this case, in the vertical direction, themovement restriction unit 205 is to be formed on the upper side end of thesecond wall 203 that faces at least the upper side end of thefirst wall surface 61 a of the secondrectangular unit 61 in the longitudinal direction. Furthermore, themovement restriction unit 205 may be formed on both thefirst wall 202 and thesecond wall 203. In this case, when viewed from the width direction, the twomovement restriction units 205 can interpose the secondrectangular unit 61 in the vertical direction as well as the longitudinal direction, in a diagonal manner. Thus, the rotation of thebus bar 6 around the busbar holding unit 26 in the counterclockwise direction can be further suppressed, thereby further suppressing thebus bar 6 from deforming. As a result, it is possible to further improve the connection reliability between thebus bar 6 and theelectronic component 5. - The electronic component unit and the electrical connection box according to the present embodiments can electrically connect each of the electronic components that is accommodated in each of the divided space portions and the rectangular unit of the bus bar, because the slit into which the rectangular unit of the bus bar is to be inserted is provided on the dividing wall that is interposed between the adjacent divided space portions in the accommodation member, thereby enabling the exposure of the rectangular unit to the inside of the divided space portions. Consequently, it is possible to electrically connect the bus bar and each of the electronic components in each of the divided space portions, and simplify the external shape of the bus bar.
- Although the invention has been described with respect to specific embodiments for a complete and clear disclosure, the appended claims are not to be thus limited but are to be construed as embodying all modifications and alternative constructions that may occur to one skilled in the art that fairly fall within the basic teaching herein set forth.
Claims (2)
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JP2016-012150 | 2016-01-26 | ||
JP2016012150A JP6374416B2 (en) | 2016-01-26 | 2016-01-26 | Electronic component unit and electrical junction box |
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US9716325B1 US9716325B1 (en) | 2017-07-25 |
US20170214155A1 true US20170214155A1 (en) | 2017-07-27 |
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US15/413,630 Active US9716325B1 (en) | 2016-01-26 | 2017-01-24 | Electronic component unit and electrical connection box |
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US (1) | US9716325B1 (en) |
JP (1) | JP6374416B2 (en) |
CN (1) | CN106994947B (en) |
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FR (1) | FR3047117B1 (en) |
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JP6620701B2 (en) * | 2016-08-10 | 2019-12-18 | 住友電装株式会社 | Electrical junction box with relief terminal |
EP3769331A1 (en) * | 2018-03-21 | 2021-01-27 | Volvo Truck Corporation | A power distribution unit, such as a fuse box for a vehicle |
JP7086472B2 (en) * | 2018-06-25 | 2022-06-20 | 矢崎総業株式会社 | Bus bar holding structure, electrical junction box, and wire harness |
JP7115358B2 (en) * | 2019-02-26 | 2022-08-09 | 住友電装株式会社 | electronic module |
JP7243550B2 (en) * | 2019-09-25 | 2023-03-22 | 住友電装株式会社 | electric junction box |
JP7189190B2 (en) * | 2020-10-21 | 2022-12-13 | 矢崎総業株式会社 | Bus bar and resin body |
JP7248732B2 (en) * | 2021-04-05 | 2023-03-29 | 矢崎総業株式会社 | Electrical junction box, method for manufacturing electrical junction box, and wire harness |
KR102644817B1 (en) * | 2022-12-12 | 2024-03-06 | 다이헤요 세코 가부시키가이샤 | Fuse, and method of manufacturing the fuse |
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JPH0716313Y2 (en) * | 1989-10-24 | 1995-04-12 | 矢崎総業株式会社 | Electrical connector |
JP3343179B2 (en) * | 1995-04-26 | 2002-11-11 | 矢崎総業株式会社 | Connection box for fusible link |
JP3864559B2 (en) * | 1998-05-14 | 2007-01-10 | ミツミ電機株式会社 | Power connector |
JP2000251599A (en) * | 1999-03-03 | 2000-09-14 | Yazaki Corp | Power supply breaker |
US6190207B1 (en) * | 1999-04-05 | 2001-02-20 | Lien-Sheng Wang | Waterproof socket adapter design |
JP2001084888A (en) * | 1999-09-13 | 2001-03-30 | Furukawa Electric Co Ltd:The | Fuse connection box |
US6162097A (en) * | 1999-09-17 | 2000-12-19 | Liang; Shih-Tsung | Fuse box |
JP2003047134A (en) * | 2001-08-01 | 2003-02-14 | Sumitomo Wiring Syst Ltd | Junction box |
JP2007300757A (en) * | 2006-05-01 | 2007-11-15 | Sumitomo Wiring Syst Ltd | Electric junction box |
JP2011155762A (en) * | 2010-01-27 | 2011-08-11 | Sumitomo Wiring Syst Ltd | Electrical connection box |
CN203406258U (en) * | 2013-08-30 | 2014-01-22 | 北汽福田汽车股份有限公司 | Fuse box, fuse box assembly and vehicle provided with the fuse box assembly |
JP6345972B2 (en) * | 2014-04-21 | 2018-06-20 | 矢崎総業株式会社 | Electronic component unit |
JP6268137B2 (en) | 2015-10-06 | 2018-01-24 | リコーインダストリアルソリューションズ株式会社 | Manufacturing method of concave lens |
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CN106994947B (en) | 2019-05-10 |
JP6374416B2 (en) | 2018-08-15 |
FR3047117A1 (en) | 2017-07-28 |
DE102017201172A1 (en) | 2017-07-27 |
JP2017135799A (en) | 2017-08-03 |
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