US20180191090A1 - Connector - Google Patents
Connector Download PDFInfo
- Publication number
- US20180191090A1 US20180191090A1 US15/800,271 US201715800271A US2018191090A1 US 20180191090 A1 US20180191090 A1 US 20180191090A1 US 201715800271 A US201715800271 A US 201715800271A US 2018191090 A1 US2018191090 A1 US 2018191090A1
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- US
- United States
- Prior art keywords
- busbar
- contact
- opening
- connector
- orientation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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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
- H01R9/226—Bases, e.g. strip, block, panel comprising a plurality of conductive flat strips providing connection between wires or components
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
- H01M50/507—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing comprising an arrangement of two or more busbars within a container structure, e.g. busbar modules
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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
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/02—Contact members
- H01R13/10—Sockets for co-operation with pins or blades
- H01R13/11—Resilient sockets
- H01R13/113—Resilient sockets co-operating with pins or blades having a rectangular transverse section
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R31/00—Coupling parts supported only by co-operation with counterpart
- H01R31/02—Intermediate parts for distributing energy to two or more circuits in parallel, e.g. splitter
-
- 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
- H01R9/223—Insulating enclosures for terminals
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
- H01M50/207—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape
- H01M50/209—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for prismatic or rectangular cells
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R11/00—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts
- H01R11/11—End pieces or tapping pieces for wires, supported by the wire and for facilitating electrical connection to some other wire, terminal or conductive member
- H01R11/12—End pieces terminating in an eye, hook, or fork
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Definitions
- This invention relates to a connector which is connectable with another connector via a busbar.
- Patent Document 1 discloses a power storage device which comprises a plurality of battery units (not shown), a plurality of connectors 90 corresponding to the battery units, respectively, and a plurality of connection members (busbars) 96 .
- the battery units are accommodated in a storing rack, which is not shown except a panel 992 , and arranged in an upper-lower direction.
- Each of the connectors 90 comprises a housing 92 and two contacts (not shown) arranged left to right.
- the housings 92 are attached to the panel 992 and arranged in the upper-lower direction.
- the contacts are connected to a positive electrode and a negative electrode of the corresponding battery unit, respectively (not shown).
- Each of the busbars 96 has a flat-plate portion 962 and two ends 964 and 966 .
- Each of the housings 92 is formed with two insertion holes 924 and 926 which correspond to the contacts (not shown), respectively.
- Each of the busbars 96 connects two of the connectors 90 , which are vertically adjacent to each other, with each other.
- the end 964 of the busbar 96 is inserted in the insertion hole 924 of the lower connector 90 and is connected to the left contact
- the end 966 of the busbar 96 is inserted in the insertion hole 926 of the upper connector 90 and is connected to the right contact.
- the aforementioned connection with use of the busbars 96 connects the plurality of the battery units (not shown) with one another via the plurality of the connectors 90 .
- the flat-plate portion 962 of the busbar 96 of Patent Document 1 has a crank shape.
- each of the ends 964 and 966 of the busbar 96 is bent.
- the busbar 96 has a complicated shape as described above so that manufacturing cost increases.
- the busbar 96 needs to be formed in a shape and a size corresponding to the arrangement of these two connectors 90 . In other words, the busbar 96 of a complicated shape is unsuitable for general use.
- An aspect of the present invention provides a connector connectable to two busbars of a first busbar and a second busbar.
- the connector comprises a housing and two contacts of a first contact and a second contact.
- the housing is formed with a first opening, a first receiving portion, a second opening and a second receiving portion.
- the first opening is visible when the housing is seen along a first orientation in a predetermined direction and is visible when the housing is seen along a third orientation in a perpendicular direction perpendicular to the predetermined direction.
- the second opening is visible when the housing is seen along a second orientation opposite to the first orientation and is visible when the housing is seen along the third orientation.
- the first receiving portion partially receives the first busbar when the first busbar is inserted through the first opening.
- the second receiving portion partially receives the second busbar when the second busbar is inserted through the second opening.
- Each of the contacts is held by the housing and has a contact portion.
- the contact portion of the first contact is located inside the first receiving portion and is brought into contact with the first busbar when the first busbar is partially received in the first receiving portion.
- the contact portion of the second contact is located inside the second receiving portion and is brought into contact with the second busbar when the second busbar is partially received in the second receiving portion.
- the first opening is visible both when the housing is seen along the first orientation and when the housing is seen along the third orientation perpendicular to the first orientation.
- the second opening is visible both when the housing is seen along the second orientation opposite to the first orientation and when the housing is seen along the third orientation.
- first and second connectors according to an aspect of the present invention are arranged so that the first opening of the first connector faces the second opening of the second connector in the predetermined direction, only by moving the busbar of a simple rectangular shape along the third orientation, one of ends of the busbar is inserted into the first opening to be connected with the first connector, and a remaining one of the ends of the busbar is inserted into the second opening to be connected with the second connector.
- the connector according to an aspect of the present invention is connectable with the other connector via the busbar of a simple shape.
- FIG. 1 is a perspective view showing a power storage device which comprises connectors according to a first embodiment of the present invention.
- FIG. 2 is a perspective view showing a battery unit of the power storage device of FIG. 1 , wherein the connector is attached to the battery unit, outlines of busbars connected to the connector are illustrated in dashed line, and a top plate of a case of the battery unit is not illustrated.
- FIG. 3 is a top view showing the battery unit and the connector of FIG. 2 , wherein the top plate of the case is not illustrated.
- FIG. 4 is a perspective view showing the connector of FIG. 2 , wherein outlines of the busbars connected to the connector are illustrated in dashed line.
- FIG. 5 is a perspective view showing a connector body and a cover of the connector of FIG. 4 , wherein terminals of the battery unit are connected to the connector body.
- FIG. 6 is an exploded, perspective view showing the connector of FIG. 4 .
- FIG. 7 is a perspective view showing the connector body of FIG. 5 , wherein outlines of the busbars connected to the connector body are illustrated in dashed line.
- FIG. 8 is another perspective view showing the connector body of FIG. 7 .
- FIG. 9 is a front view showing the connector body of FIG. 7 , wherein outlines of the busbars connected to the connector body are illustrated in dashed line.
- FIG. 10 is a side view showing the connector body of FIG. 7 .
- FIG. 11 is another side view showing the connector body of FIG. 7 , wherein an outline of the cover of the connector is illustrated in dashed line.
- FIG. 12 is a top view showing the connector body of FIG. 7 .
- FIG. 13 is a bottom view showing the connector body of FIG. 7 .
- FIG. 14 is a rear view showing the connector body of FIG. 7 , wherein an outline of the cover is illustrated in dashed line.
- FIG. 15 is a cross-sectional view showing the connector body of FIG. 9 , taken along line XV-XV.
- FIG. 16 is a cross-sectional view showing the connector body of FIG. 9 , taken along line XVI-XVI.
- FIG. 17 is a cross-sectional view showing the connector body of FIG. 9 , taken along line XVII-XVII, wherein the busbars are connected to the connector body, parts of first and second receiving portions (parts each enclosed by dashed line) are enlarged to be illustrated, and boundaries of first and second connection spaces in the enlarged views are illustrated in chain dotted line.
- FIG. 18 is a cross-sectional view showing the connector body of FIG. 10 , taken along line XVIII-XVIII.
- FIG. 19 is a perspective view showing a first member of a housing of the connector body of FIG. 7 .
- FIG. 20 is a perspective view showing a second member of the housing of the connector body of FIG. 7 .
- FIG. 21 is a perspective view showing two contacts of the connector body of FIG. 7 .
- FIG. 22 is a perspective view showing a first contact of the two contacts of FIG. 21 .
- FIG. 23 is a top view showing the first contact of FIG. 22 , wherein a part of the contact (part enclosed by dashed line) is enlarged to be illustrated.
- FIG. 24 is a side view showing the two contacts of FIG. 21 .
- FIG. 25 is a perspective view showing the connector body of FIG. 7 together with the two busbars, wherein each of the busbars is under a state where connection to the connector body starts.
- FIG. 26 is a front view showing two of the battery units of the power storage device of FIG. 1 , wherein the connector bodies are attached to the battery units, respectively, and the two connector bodies are connected with each other via the busbar.
- FIG. 27 is a side view showing the battery units, the connector bodies and the busbar of FIG. 26 .
- FIG. 28 is another side view showing the battery units, the connector bodies and the busbar of FIG. 26 .
- FIG. 29 is still another side view showing the battery units, the connector bodies and the busbar of FIG. 26 .
- FIG. 30 is a perspective view showing the connector body of FIG. 7 together with the busbar and a cable, wherein each of the busbar and the cable is connected to the connector body.
- FIG. 31 is a perspective view showing the connector body, the busbar and the cable of FIG. 30 , wherein the cover is attached to the connector body.
- FIG. 32 is a perspective view showing a modification of the connector body of FIG. 7 .
- FIG. 33 is another perspective view showing the connector body of FIG. 32 .
- FIG. 34 is a side view showing the connector body of FIG. 32 .
- FIG. 35 is another side view showing the connector body of FIG. 32 .
- FIG. 36 is a top view showing the connector body of FIG. 32 .
- FIG. 37 is a bottom view showing the connector body of FIG. 32 .
- FIG. 38 is a cross-sectional view showing the connector body of FIG. 36 , taken along line XXXVIII-XXXVIII.
- FIG. 39 is a cross-sectional view showing the connector body of FIG. 36 , taken along line XXXIX-XXXIX.
- FIG. 40 is a perspective view showing a modification of the battery unit of FIG. 2 , wherein the top plate of the case is not illustrated.
- FIG. 41 is a perspective view showing the battery unit of FIG. 40 , wherein the connector body of FIG. 32 is attached to the battery unit, the connector body and therearound (part enclosed by dashed line) is enlarged to be illustrated, and the top plate of the case is not illustrated.
- FIG. 42 is a top view showing the battery unit and the connector body of FIG. 41 , wherein the top plate of the case is not illustrated.
- FIG. 43 is a perspective view showing the connector body of FIG. 41 , wherein terminals of the battery unit are connected to the connector body.
- FIG. 44 is a perspective view showing a connector body of a connector according to a second embodiment of the present invention, wherein outlines of the busbars connected to the connector body are illustrated in dashed line.
- FIG. 45 is another perspective view showing the connector body of FIG. 44 .
- FIG. 46 is a front view showing the connector body of FIG. 44 .
- FIG. 47 is a top view showing the connector body of FIG. 44 .
- FIG. 48 is a bottom view showing the connector body of FIG. 44 .
- FIG. 49 is a rear view showing the connector body of FIG. 44 .
- FIG. 50 is a perspective view showing two contacts of the connector body of FIG. 44 .
- FIG. 51 is a front view showing the two contacts of FIG. 50 .
- FIG. 52 is a top view showing a first contact of the two contacts of FIG. 50 , wherein a part of the contact (part enclosed by dashed line) is enlarged to be illustrated.
- FIG. 53 is a perspective view showing the connector body of FIG. 44 together with the two busbars, wherein each of the busbars is under a state where connection to the connector body starts.
- FIG. 54 is a front view showing the connector body and the busbars of FIG. 53 , wherein each of the busbars is connected to the connector body, first and second openings and therearound (parts each enclosed by dashed line) are enlarged to be illustrated, and boundaries of first and second connection spaces in the enlarged views are illustrated in chain dotted line.
- FIG. 55 is a perspective view showing the connector body and the busbars of FIG. 54 , wherein a cover is attached to the connector body.
- FIG. 56 is a perspective view showing the connector body of FIG. 44 together with the two cables, wherein each of the cables is connected to the connector body.
- FIG. 57 is a perspective view showing the connector body and the cables of FIG. 56 , wherein the cover is attached to the connector body.
- FIG. 58 is perspective view showing a part of a power storage device of Patent Document 1.
- a rectangular coordinate system is used to indicate positions and directions, wherein this rectangular coordinate system consists of three axes, namely the X-axis, the Y-axis and the Z-axis, perpendicular to one another.
- the word “orientation” is used, instead of “direction”, to indicate each of a positively oriented direction and a negatively oriented direction in an axis, for example, the positive X-direction and the negative X-direction in the X-axis.
- the word “direction” is used to indicate an unoriented direction such as the X-direction.
- a connector 10 according to a first embodiment of the present invention is used in a power storage device 80 .
- the power storage device 80 of the present embodiment comprises a plurality of battery units 810 arranged in two rows in a left-right direction (Y-direction).
- the battery units 810 in each row are arranged in an upper-lower direction (Z-direction).
- the power storage device 80 is accommodated in a storing rack (not shown).
- the storing rack is provided with a plurality of shelves (not shown) corresponding to the battery units 810 , respectively.
- Each of the battery units 810 is placed on the corresponding shelf.
- each of the battery units 810 comprises a battery module 830 .
- the connectors 10 are connected to the battery modules 830 , respectively.
- the connectors 10 connect a plurality of the battery modules 830 with one another via busbars 860 and cables (connection members) 880 so that the power storage device 80 is formed.
- the connector 10 of the present embodiment is uses to connect the battery modules 830 with each other.
- the present invention is not limited thereto, but the connector 10 can be used for connection of various devices.
- each of the busbars 860 connects adjacent two of the connectors 10 in the Z-direction with each other.
- the busbar 860 is moved in the Y-direction to be inserted into or removed from the connector 10 .
- the Z-direction is the connection direction along which two of the connectors 10 are connected with each other via the busbar 860 .
- This Z-direction is referred to as “predetermined direction”.
- the negative Z-direction in the predetermined direction is referred to as “first orientation”, and the positive Z-direction in the predetermined direction is referred to as “second orientation”.
- the Y-direction is the insertion and removal direction along which the busbar 860 is inserted and removed. This Y-direction is referred to as “perpendicular direction”.
- the negative Y-direction in the perpendicular direction is referred to as “third orientation”
- the positive Y-direction in the perpendicular direction is referred to as “fourth orientation”.
- the X-direction that is perpendicular to both the predetermined direction and the perpendicular direction is referred to as “second perpendicular direction”.
- the negative X-direction in the second perpendicular direction is referred to as “fifth orientation”
- the positive X-direction in the second perpendicular direction is referred to as “sixth orientation”.
- the connector 10 of the present embodiment comprises a connector body 12 and a cover 50 made of insulator.
- the connector body 12 comprises a housing 20 made of insulator, two contacts 60 each made of metal, namely a first contact 62 and a second contact 64 , two nuts 72 each made of metal and two additional nuts 74 each made of metal.
- the housing 20 comprises a first member 30 and a second member 40 .
- the nut 72 and the additional nut 74 have identical shapes and sizes.
- the present invention is not limited thereto.
- the housing 20 may be a single member or otherwise may comprise three or more members.
- the nut 72 and the additional nut 74 may have different shapes and sizes.
- the connector 10 may consist of the connector body 12 .
- the first member 30 of the housing 20 has an attached portion 310 , a busbar connection portion 330 and two holding portions 350 .
- the attached portion 310 has a flat-plate shape and extends along a predetermined plane (YZ-plane) defined by the predetermined direction (Z-direction) and the perpendicular direction (Y-direction).
- the busbar connection portion 330 and the holding portions 350 project from the attached portion 310 along the fifth orientation (negative X-direction).
- the busbar connection portion 330 is located at the middle of the attached portion 310 in the perpendicular direction and extends between opposite ends of the attached portion 310 in the predetermined direction.
- the holding portions 350 are located at opposite sides of the busbar connection portion 330 in the perpendicular direction, respectively.
- the attached portion 310 has an attached surface 312 .
- the attached surface 312 is located in the predetermined plane (YZ-plane).
- the attached portion 310 is formed with two attachment holes 314 .
- the attachment holes 314 are located at opposite end portions of the attached portion 310 in the perpendicular direction (Y-direction), respectively.
- Each of the attachment holes 314 passes through the attached portion 310 in the second perpendicular direction (X-direction).
- the busbar connection portion 330 is provided with an accommodation portion 380 .
- the accommodation portion 380 is a space formed inside the busbar connection portion 330 and opens outward in the sixth orientation (positive X-direction).
- the busbar connection portion 330 is formed with a first opening 332 and a second opening 334 .
- the first opening 332 and the second opening 334 are located at opposite end portions of the busbar connection portion 330 in the predetermined direction (Z-direction), respectively.
- Each of the first opening 332 and the second opening 334 is a space which connects the outside of the first member 30 with the accommodation portion 380 , or the inside of the first member 30 .
- the first opening 332 opens outward in the second orientation (positive Z-direction) and opens outward in the fourth orientation (positive Y-direction).
- the second opening 334 opens outward in the first orientation (negative Z-direction) and opens outward in the fourth orientation.
- the busbar connection portion 330 has a first protection portion 336 and a second protection portion 338 .
- each of the first protection portion 336 and the second protection portion 338 is a part of a wall that covers the accommodation portion 380 .
- the first protection portion 336 corresponds to the first opening 332 . More specifically, in the perpendicular direction (Y-direction), the first protection portion 336 blocks an end of the first opening 332 in the third orientation (negative Y-direction).
- the second protection portion 338 corresponds to the second opening 334 . More specifically, in the perpendicular direction, the second protection portion 338 blocks an end of the second opening 334 in the third orientation.
- each of the holding portions 350 is formed with a holding hole 352 .
- the housing 20 is formed with the two holding holes 352 .
- Each of the holding holes 352 is a hole with a bottom and opens outward in the second orientation (positive Z-direction).
- Each of the holding holes 352 has a shape and a size corresponding to the nut 72 .
- each of the holding portions 350 is formed with an insertion portion 392 .
- Each of the insertion portions 392 is a space which opens outward in the sixth orientation (positive X-direction).
- the second member 40 of the housing 20 has a base portion 410 and two additional holding portions 450 .
- the base portion 410 is located at the middle of the second member 40 in the perpendicular direction (Y-direction).
- the base portion 410 has a contact holding portion 420 and a partition portion 440 .
- the contact holding portion 420 extends between opposite ends of the second member 40 in the predetermined direction (Z-direction).
- the partition portion 440 is located at the middle of the contact holding portion 420 in the predetermined direction and projects along the sixth orientation (positive X-direction) from the contact holding portion 420 .
- the additional holding portions 450 are located at opposite sides of the partition portion 440 in the perpendicular direction.
- the contact holding portion 420 is formed with a first receiving portion 422 and a second receiving portion 424 .
- Each of the first receiving portion 422 and the second receiving portion 424 is a space formed inside the contact holding portion 420 .
- the first receiving portion 422 and the second receiving portion 424 are located at opposite sides of the contact holding portion 420 in the predetermined direction (Z-direction) and separated from each other in the predetermined direction by a separation wall.
- the first receiving portion 422 opens outward in the second orientation (positive Z-direction) and opens outward in the fourth orientation (positive Y-direction).
- the second receiving portion 424 opens outward in the first orientation (negative Z-direction) and opens outward in the third orientation (negative Y-direction).
- the contact holding portion 420 has a first holding portion 426 and a second holding portion 428 .
- the first holding portion 426 is located inside the first receiving portion 422 and projects along the fourth orientation (positive Y-direction) from a wall that covers the first receiving portion 422 .
- the second holding portion 428 is located inside the second receiving portion 424 and projects along the third orientation (negative Y-direction) from a wall that covers the second receiving portion 424 .
- each of the additional holding portions 450 is formed with an additional holding hole 452 .
- the housing 20 is formed with the two additional holding holes 452 .
- Each of the additional holding holes 452 is a hole with a bottom and opens outward in the second orientation (positive Z-direction).
- Each of the additional holding holes 452 has a shape and a size corresponding to the additional nut 74 .
- the cover 50 has a shape corresponding to a projecting portion of the first member 30 of the housing 20 , or a portion that projects from the attached portion 310 along the fifth orientation (negative X-direction).
- the cover 50 has a space formed therewithin which has a shape corresponding to the projecting portion.
- the cover 50 is provided with two busbar passages 510 and two removable walls 520 .
- the busbar passages 510 are formed in opposite end portions of the cover 50 in the predetermined direction (Z-direction), respectively.
- Each of the busbar passages 510 is a space which connects the inside and the outside of the cover 50 with each other and is located at the middle of the cover 50 in the perpendicular direction (Y-direction).
- the removable walls 520 are located at opposite end portions of the cover 50 in the perpendicular direction, respectively. Each of the removable walls 520 is formed to be easily removable from the cover 50 .
- each of the first contact 62 and the second contact 64 is a single metal plate with bends.
- explanation is made about a structure of the first contact 62 .
- the first contact 62 has a main portion 610 , a coupling portion 650 and a sub-portion 660 .
- the main portion 610 has a triangular shape when the first contact 62 is seen along the third orientation (negative Y-direction).
- the sub-portion 660 has a rectangular flat-plate shape which extends along a perpendicular plane (XY-plane).
- the coupling portion 650 extends with bends and couples the main portion 610 and the sub-portion 660 to each other so that the main portion 610 and the sub-portion 660 are arranged in the perpendicular direction (Y-direction).
- the main portion 610 has a held portion 620 , a spring portion 630 and an additional spring portion (spring portion) 640 .
- the held portion 620 has a rectangular flat-plate shape which extends along the perpendicular plane (XY-plane).
- the spring portion 630 and the additional spring portion 640 extend from opposite ends of the held portion 620 in the second perpendicular direction (X-direction), respectively, and extend along the second orientation (positive Z-direction) while approaching each other in the second perpendicular direction.
- Each of the spring portion 630 and the additional spring portion 640 has a fixed end that is fixed to the held portion 620 and a free end that is located opposite to the fixed end in the predetermined direction (Z-direction). In other words, each of the spring portion 630 and the additional spring portion 640 is supported by the held portion 620 as a cantilever to be resiliently deformable.
- the spring portion 630 has a contact portion 632 located in the vicinity of its free end
- the additional spring portion 640 has a catch portion (contact portion) 642 located in the vicinity of its free end.
- the contact portion 632 is movable in the second perpendicular direction (X-direction) according to resilient deformation of the spring portion 630 .
- the catch portion 642 is movable in the second perpendicular direction according to resilient deformation of the additional spring portion 640 .
- the spring portion 630 is provided with a guide portion 638
- the additional spring portion 640 is provided with a guide portion 648 .
- the guide portion 638 is an edge of a projecting portion which projects from the spring portion 630 along the fourth orientation (positive Y-direction).
- the guide portion 648 is an edge of another projecting portion which projects from the additional spring portion 640 along the fourth orientation.
- a distance D between the guide portion 638 and the guide portion 648 in the second perpendicular direction (X-direction) gradually decreases along the third orientation (negative Y-direction).
- the sub-portion 660 has a connection portion 670 and an additional connection portion 680 .
- the connection portion 670 is one of opposite sides of the sub-portion 660 in the second perpendicular direction (X-direction) and is adjacent to the main portion 610 in the perpendicular direction (Y-direction).
- the additional connection portion 680 is a remaining one of the opposite sides of the sub-portion 660 in the second perpendicular direction and projects from the connection portion 670 along the fifth orientation (positive X-direction).
- no visible boundary portion is provided between the connection portion 670 and the additional connection portion 680 .
- the present invention is not limited thereto.
- connection portion 670 and the additional connection portion 680 may be separated from each other in the perpendicular direction by a visible boundary portion such as a groove or a projection.
- first contact 62 may have the coupling portion 650 and the sub-portion 660 as necessary.
- connection portion 670 is formed with an attachment hole 672 .
- the attachment hole 672 passes through the connection portion 670 in the predetermined direction (Z-direction).
- the additional connection portion 680 is formed with an additional attachment hole 682 .
- the additional attachment hole 682 passes through the additional connection portion 680 in the predetermined direction.
- the second contact 64 has a shape and a size identical to those of the first contact 62 .
- the second contact 64 is arranged to take a posture obtained by rotating a posture of the first contact 62 by 180 degrees about the Z-axis followed by further rotating it by 180 degrees about the Y-axis.
- the held portions 620 of the first contact 62 and the second contact 64 are arranged in the predetermined direction (Z-direction).
- the spring portion 630 and the additional spring portion 640 of the second contact 64 extend from opposite ends of the held portion 620 in the second perpendicular direction (X-direction), respectively, and extend along the first orientation (negative Z-direction) while approaching each other in the second perpendicular direction.
- the second contact 64 has a structure identical to that of the first contact 62 except the aforementioned difference.
- each of the contacts 60 has the spring portion 630 , the contact portion 632 , the additional spring portion 640 , the catch portion 642 , the connection portion 670 , the additional connection portion 680 and the two guide portions 638 and 648 .
- the contact portion 632 is supported by the spring portion 630 so as to be movable in the second perpendicular direction (X-direction)
- the catch portion 642 is supported by the additional spring portion 640 so as to be movable in the second perpendicular direction.
- the spring portion 630 and the additional spring portion 640 have a mirror-symmetric shape with respect to the predetermined plane (YZ-plane). Therefore, the additional spring portion 640 works similar to the spring portion 630 , and the catch portion 642 works similar to the contact portion 632 .
- the present invention is not limited thereto.
- the additional spring portion 640 may have a shape and a spring force different from those of the spring portion 630 .
- the second contact 64 may have a shape and a size different from those of the first contact 62 .
- the present embodiment is preferable in order to reduce types of components to lower manufacturing cost.
- the aforementioned members are combined as describe below to form the connector body 12 (see FIG. 7 ).
- the additional nuts 74 are inserted into the additional holding holes 452 of the second member 40 , respectively.
- the thus-inserted additional nuts 74 are received in and held by the additional holding holes 452 , respectively.
- the first contact 62 is attached to the second member 40 .
- the main portion 610 of the first contact 62 is attached around the first holding portion 426 (see FIG. 20 ) of the second member 40 .
- the additional connection portion 680 of the first contact 62 is placed on one of the additional holding portions 450 so that the additional attachment hole 682 is located on the additional holding hole 452 .
- the second contact 64 is attached to the second member 40 .
- the main portion 610 of the second contact 64 is attached around the second holding portion 428 of the second member 40 . Meanwhile, the additional connection portion 680 of the second contact 64 is placed on a remaining one of the additional holding portions 450 so that the additional attachment hole 682 is located on the additional holding hole 452 .
- the nuts 72 are inserted into the holding holes 352 of the first member 30 , respectively.
- the thus-inserted nuts 72 are received in and held by the holding holes 352 , respectively.
- the second member 40 is attached to the first member 30 together with the two contacts 60 , or the first contact 62 and the second contact 64 .
- the contact holding portion 420 of the second member 40 is inserted into the accommodation portion 380 of the first member 30 .
- ends of the two additional holding portions 450 of the second member 40 together with the connection portions 670 of the contacts 60 (see FIG. 6 ), are inserted into the two insertion portions 392 of the first member 30 , respectively. Referring to FIGS.
- connection portions 670 of the contacts 60 are placed on the holding portions 350 , respectively, so that the attachment holes 672 are located on the holding holes 352 , respectively.
- two engagement projections 482 of the second member 40 are engaged with two engagement holes 382 of the first member 30 , respectively, so that the connector body 12 is formed.
- the housing 20 is formed with the first opening 332 and the second opening 334 .
- the first opening 332 is visible when the housing 20 is seen along the first orientation (negative Z-direction) in the predetermined direction (Z-direction) and is visible when the housing 20 is seen along the third orientation (negative Y-direction) in the perpendicular direction (Y-direction) perpendicular to the predetermined direction.
- the second opening 334 is visible when the housing 20 is seen along the second orientation (positive Z-direction) opposite to the first orientation and is visible when the housing 20 is seen along the third orientation.
- each of the first receiving portion 422 and the second receiving portion 424 is arranged inside the housing 20 as a part of the accommodation portion 380 .
- the housing 20 is formed with the first receiving portion 422 and the second receiving portion 424 .
- Each of the contacts 60 is held by the housing 20 .
- the main portion 610 of the first contact 62 is located inside the first receiving portion 422
- the held portion 620 is held by the first holding portion 426 .
- the main portion 610 of the second contact 64 is located inside the second receiving portion 424
- the held portion 620 is held by the second holding portion 428 .
- the contact portion 632 and the catch portion 642 of the thus-held first contact 62 are located inside the first receiving portion 422 .
- the contact portion 632 and the catch portion 642 of the second contact 64 are located inside the second receiving portion 424 .
- the connector body 12 is attached to the battery unit 810 when used.
- the battery unit 810 comprises a case 820 with a panel (object) 822 in addition to the battery module 830 .
- the battery module 830 is accommodated inside the case 820 .
- the battery module 830 has a body portion 832 and two terminals 834 and 836 .
- One of the terminals 834 and 836 is connected to the positive electrode of the body portion 832
- a remaining one of the terminals 834 and 836 is connected to the negative electrode of the body portion 832 .
- the attached portion 310 of the connector body 12 is attached and fixed to the panel 822 of the case 820 by screws passing through the attachment holes 314 .
- the thus-fixed attached surface 312 is in contact with the panel 822 .
- the additional holding portions 450 of the connector body 12 together with the additional connection portions 680 of the contacts 60 (see FIG. 8 ), pass through a hole (not shown) of the panel 822 and project inside the case 820 .
- the terminals 834 and 836 of the battery module 830 are fixed to the additional connection portions 680 , respectively, by bolts 890 and the additional nuts 74 (see FIGS. 15 and 16 ) so that the connector body 12 is electrically connected with the battery module 830 .
- the connector body 12 has a projecting portion which consists of the partition portion 440 , the two additional holding portions 450 and the two additional connection portions 680 .
- the projecting portion projects from the attached portion 310 along the sixth orientation (positive X-direction) and has an asymmetrical shape in the predetermined direction (Z-direction).
- the hole (not shown) of the panel 822 (see FIG. 3 ) has a shape which corresponds to this asymmetrical shape. Therefore, the connector body 12 is attachable to the panel 822 only under a state where the partition portion 440 projects beyond the additional holding portions 450 along the second orientation (positive Z-direction).
- each of the busbars 860 is formed of conductor such as metal and has a rectangular flat-plate shape. More specifically, each of the busbars 860 is a metal plate having a simple rectangular shape.
- One of the busbars 860 is a first busbar 862 that extends from the connector body 12 along the second orientation (positive Z-direction), and a remaining one of the busbars 860 is a second busbar 864 that extends from the connector body 12 along the first orientation (negative Z-direction).
- the connector body 12 is connectable to the first busbar 862 and the second busbar 864 of the two busbars 860 .
- the first busbar 862 and the second busbar 864 have identical shapes and sizes.
- the present invention is not limited thereto, but the first busbar 862 and the second busbar 864 may have different shapes and sizes to some extent.
- an end of the first busbar 862 is inserted into the first receiving portion 422 through the first opening 332 along the third orientation (negative Y-direction), and an end of the second busbar 864 is inserted into the second receiving portion 424 through the second opening 334 along the third orientation.
- the first, receiving portion 422 partially receives the first busbar 862 when the first busbar 862 is inserted through the first opening 332 .
- the second receiving portion 424 partially receives the second busbar 864 when the second busbar 864 is inserted through the second opening 334 .
- the contact portion 632 and the catch portion 642 of the first contact 62 are visible through the first opening 332 both when the housing 20 is seen along the first orientation (negative Z-direction) and when the housing 20 is seen along the third orientation (negative Y-direction).
- the contact portion 632 and the catch portion 642 of the second contact 64 are visible through the second opening 334 both when the housing 20 is seen along the second orientation (positive Z-direction) and when the housing 20 is seen along the third orientation.
- the contact portion 632 and the catch portion 642 of the first contact 62 are located inside a first connection space 432 which is a part of the first receiving portion 422 .
- the first opening 332 defines a boundary (see chain dotted line in FIG. 17 ) of the first connection space 432 in a second perpendicular plane (XZ-plane) and defines another boundary of the first connection space 432 in the perpendicular plane (XY-plane).
- the contact portion 632 and the catch portion 642 of the second contact 64 are located inside a second connection space 434 which is a part of the second receiving portion 424 .
- the second opening 334 defines a boundary (see chain dotted line in FIG. 17 ) of the second connection space 434 in the second perpendicular plane and defines another boundary of the second connection space 434 in the perpendicular plane.
- the contact portion 632 and the catch portion 642 of the first contact 62 are brought into contact with the first busbar 862 when the first busbar 862 is partially received in the first connection space 432 of the first receiving portion 422 .
- the contact portion 632 and the catch portion 642 of the second contact 64 which are arranged as described above, are brought into contact with the second busbar 864 when the second busbar 864 is partially received in the second connection space 434 of the second receiving portion 424 .
- the connector body 12 is electrically connected with each of the first busbar 862 and the second busbar 864 .
- the terminal 834 of the battery module 830 is electrically connected with the first busbar 862
- the terminal 836 is electrically connected with the second busbar 864 .
- each of the first opening 332 and the second opening 334 allows the insertion of the busbar 860 along the third orientation (negative Y-direction).
- FIG. 17 together with FIG. 1 under a state where the first opening 332 of the connector 10 is arranged to face the second opening 334 of the other connector 10 in the predetermined direction (Z-direction), only by moving the busbar 860 of a simple rectangular shape along the third orientation, one of the ends of the busbar 860 is inserted into the first opening 332 to be connected with the connector 10 , and a remaining one of the ends of the busbar 860 is inserted into the second opening 334 to be connected with the other connector 10 .
- the connector 10 according to the present embodiment is connectable with the other connector 10 via the busbar 860 of a simple shape.
- the housing 20 has the first protection portion 336 and the second protection portion 338 .
- the first protection portion 336 hides the first opening 332 when the housing 20 is seen along the fourth orientation (positive Y-direction) opposite to the third orientation (negative Y-direction).
- the second protection portion 338 hides the second opening 334 when the housing 20 is seen along the fourth orientation.
- the first protection portion 336 stops the movement of the first busbar 862 (see FIG. 25 ) along the third orientation.
- the second protection portion 338 stops the movement of the second busbar 864 (see FIG. 25 ) along the third orientation.
- the first busbar 862 (see FIG. 25 ) inserted into the first receiving portion 422 along the third orientation (negative Y-direction) and the second busbar 864 (see FIG. 25 ) inserted into the second receiving portion 424 along the third orientation might be moved to the holding portion 350 through the first receiving portion 422 and the second receiving portion 424 .
- the first busbar 862 is moved to the holding portion 350 which is provided with the connection portion 670 of the second contact 64
- the first busbar 862 might be brought into contact with the connection portion 670 of the second contact 64 .
- the present invention since the first protection portion 336 and the second protection portion 338 are provided, the first busbar 862 and the second busbar 864 are stopped to be securely kept inside the first receiving portion 422 and the second receiving portion 424 , respectively.
- the present invention is not limited thereto, but the first protection portion 336 and the second protection portion 338 may be provided as necessary.
- each of the contact portion 632 and the catch portion 642 in each of the contacts 60 of the present embodiment is located between the connection portions 670 of the two contacts 60 in the perpendicular direction (Y-direction). Moreover, the contact portions 632 of the two contacts 60 are arranged in the predetermined direction (Z-direction), and the catch portions 642 of the two contacts 60 are arranged in the predetermined direction.
- the contact portion 632 and the catch portion 642 of the first contact 62 equivalently apply spring forces to the first busbar 862 which is partially received in the first receiving portion 422 and hold the first busbar 862 therebetween.
- the contact portion 632 and the catch portion 642 of the second contact 64 equivalently apply spring forces to the second busbar 864 which is partially received in the second receiving portion 424 and hold the second busbar 864 therebetween.
- This holding mechanism securely connects each of the contacts 60 to the busbar 860 .
- the catch portion 642 may be supported so as to apply a spring force stronger than that of the contact portion 632 . In this case, when the busbar 860 is inserted, the catch portion 642 may be hardly moved and catch the busbar 860 .
- the catch portion 642 of the first contact 62 may be supported by a part of the second member 40 such as an inner wall of the first receiving portion 422 so as to be unmovable.
- the catch portion 642 of the second contact 64 may be supported by a part of the second member 40 such as an inner wall of the second receiving portion 424 so as to be unmovable.
- the two guide portions 638 and 648 of the first contact 62 open along the fourth orientation (positive Y-direction) and guide the first busbar 862 (see FIG. 25 ) when the first busbar 862 is inserted through the first opening 332 .
- the two guide portions 638 and 648 of the second contact 64 open along the fourth orientation and guide the second busbar 864 (see FIG. 25 ) when the second busbar 864 is inserted through the second opening 334 .
- the guide portions 638 and 648 are provided, each of the busbars 860 (see FIG. 25 ) can be smoothly inserted.
- the present invention is not limited thereto, but the guide portions 638 and 648 may be provided as necessary.
- each of the opposite ends of the busbar connection portion 330 of the present embodiment in the predetermined direction has a rectangular shape when the housing 20 is seen along the third orientation (negative Y-direction).
- a part of the first opening 332 extends in the predetermined direction, and a remaining part of the first opening 332 extends in the perpendicular direction (Y-direction).
- the first opening 332 of the present embodiment continuously extends along the predetermined plane (YZ-plane) defined by the predetermined direction and the perpendicular direction.
- a part of the second opening 334 extends in the predetermined direction, and a remaining part of the second opening 334 extends in the perpendicular direction.
- the second opening 334 of the present embodiment continuously extends along the predetermined plane.
- the end of the busbar connection portion 330 in the predetermined direction may be formed in various shapes such as a trapezoidal shape and an arc-shape.
- Each of the first opening 332 and the second opening 334 may be formed in various shapes in accordance with the shape of the end of the busbar connection portion 330 .
- each of the first opening 332 and the second opening 334 may extend in an arc-shape along the predetermined plane (YZ-plane).
- the first opening 332 and the second opening 334 extend in a common plane.
- the first opening 332 and the second opening 334 are located at positions same as each other in the perpendicular direction (Y-direction).
- Y-direction perpendicular direction
- the busbar 860 can be easily inserted into the first opening 332 and the second opening 334 .
- the present invention is not limited thereto.
- the busbar 860 because the busbar 860 has a simple shape, the busbar 860 is flexibly adaptable to a positional difference between the first opening 332 and the second opening 334 facing each other of the two connectors 10 .
- the busbar 860 when a size of each of the first opening 332 and the second Opening 334 in the second perpendicular direction (X-direction) is made sufficiently larger than a thickness of the busbar 860 , or a size of the busbar 860 in the second perpendicular direction (see FIG. 17 ), the busbar 860 is particularly flexibly adaptable to the positional difference.
- the two connector bodies 12 adjacent to each other in the predetermined direction may be located at different positions in the perpendicular direction (Y-direction) to some extent. Even in this arrangement, the two connector bodies 12 can be connected with each other by the busbar 860 .
- the two connector bodies 12 adjacent to each other in the predetermined direction may be located at different positions in the second perpendicular direction (X-direction).
- the attached surfaces 312 of the two connector bodies 12 may be not in the common plane but in two planes in parallel to each other. Even in this arrangement, the two connector bodies 12 can be connected with each other by the busbar 860 .
- a distance between the two connector bodies 12 adjacent to each other in the predetermined direction may be changed to some extent.
- a distance between the two connector bodies 12 adjacent to each other in the predetermined direction may be D 1
- another distance between the other two connector bodies 12 adjacent to each other in the predetermined direction may be not D 1 but D 2 .
- D 1 may be larger than D 2 .
- the arrangement of the first opening 332 and the second opening 334 in the one connector 10 can be variously modified.
- a position of the first opening 332 in the perpendicular direction (Y-direction) may be different from another position of the second opening 334 in the perpendicular direction to some extent.
- a position of the first opening 332 in the second perpendicular direction (X-direction) may be different from another position of the second opening 334 in the second perpendicular direction to some extent.
- the first opening 332 and the second opening 334 may extend along a plane that is in parallel to the predetermined direction (Z-direction) and oblique to the second perpendicular direction to some extent.
- the cover 50 is attached to the connector body 12 .
- the cover 50 hides, at least in part, each of the first opening 332 and the second opening 334 when the connector 10 is seen along the third orientation (negative Y-direction).
- the thus-attached cover 50 prevents the busbar 860 from coming off.
- the present invention is not limited thereto, but the connector 10 may comprise the cover 50 as necessary.
- connection portions 670 is connectable to the connection member other than the busbar 860 .
- the connection member in the present embodiment is the cable 880 .
- connection portions 670 since the connection portions 670 are provided, a plurality of the connectors 10 in various arrangements can be connected with one another by using the busbars 860 and the cables 880 .
- the connection member may be a member other than the cable 880 .
- the cover 50 is formed with a cable passage 530 by removing the removable wall 520 (see FIG. 4 ) and is attached to the connector body 12 .
- the cable 880 passes through the thus-formed cable passage 530 to extend outward of the connector 10 .
- the positions of the first opening 332 and the first protection portion 336 may be exchanged, and the positions of the second opening 334 and the second protection portion 338 may be exchanged.
- the busbar 860 is insertable to the connector body 12 not along the negative Y-direction but along the positive Y-direction.
- the third orientation in this modification is not the negative Y-direction but the positive Y-direction.
- a connector 10 A according to a modification comprises a connector body 12 A and the cover 50 (see FIG. 4 ).
- the connector body 12 A comprises a housing 20 A made of insulator, two contacts 60 A each made of metal, namely a first contact 62 A and a second contact 64 A, and the two nuts 72 .
- the housing 20 A comprises a first member 30 A and a second member 40 A.
- the first member 30 A of the housing 20 A has an attached portion 310 A which is different from the attached portion 310 of the first member 30 of the housing 20 and two holding portions 350 A which are different from the holding portions 350 of the first member 30 .
- the attached portion 310 A is formed with two passages 392 A which correspond to the holding portions 350 A, respectively.
- Each of the passages 392 A passes through the attached portion 310 A in the second perpendicular direction (X-direction).
- Each of the holding portions 350 A is not formed with the insertion portion 392 .
- the first member 30 A has a structure identical to that of the first member 30 (see FIG. 19 ) of the housing 20 .
- the second member 40 A of the housing 20 A does not have three portions of the second member 40 of the housing 20 , namely the partition portion 440 and the additional holding portions 450 . Except for the aforementioned difference, the second member 40 A has a structure identical to that of the second member 40 of the housing 20 .
- each of the first contact 62 A and the second contact 64 A does not have the additional connection portion 680 which is provided to each of the first contact 62 and the second contact 64 . Except for the aforementioned difference, the first contact 62 A and the second contact 64 A have structures identical to those of the first contact 62 and the second contact 64 , respectively.
- the contact holding portion 420 of the second member 40 A is inserted into the accommodation portion 380 (see FIG. 19 ) of the first member 30 A similar to the previously described embodiment, so that the connector body 12 A is formed.
- the housing 20 A of the connector body 12 A has the busbar connection portion 330 which has a structure identical to that of the previously described embodiment. Therefore, the connector body 12 A is connectable to the first busbar 862 (see FIG. 25 ) and the second busbar 864 (see FIG. 25 ) similar to the previously described embodiment.
- the connector body 12 A is attached to a battery unit 810 A when used.
- the battery unit 810 A comprises a case 820 A with the panel 822 and a battery module 830 A.
- the battery module 830 A is accommodated inside the case 820 A.
- the battery module 830 A has a body portion 832 A and two terminals 834 A and 836 A.
- the attached portion 310 A of the connector body 12 A is attached and fixed to the panel 822 of the case 820 A.
- the thus-fixed attached surface 312 is in contact with the panel 822 .
- each of the terminals 834 A and 836 A passes through the passages 392 A, respectively, and fixed to the holding portions 350 A of the connector body 12 A, respectively.
- each of the terminals 834 A and 836 A is fixed to the connection portion 670 of the corresponding contact 60 A by the bolt 890 and the nut 72 , so that the connector body 12 A is electrically connected with the battery module 830 A.
- the connector body 12 (see FIG. 8 ) of the previously described embodiment comprises the two additional connection portions 680 (see FIG. 8 ).
- Each of the additional connection portions 680 is connectable to the terminal 834 or 836 (additional connection member) other than the busbar 860 and the cable 880 (connection member).
- the connector body 12 A according to the present modification does not comprise the additional connection portions 680 , but the connection portions 670 work as the additional connection portions 680 .
- Each of the connection portions 670 is also connectable to the cable 880 (see FIG. 30 ) similar to the previously described embodiment.
- the connector body 12 A according to the present modification has no projecting portion that projects inside the case 820 beyond the attached portion 310 A along the sixth orientation (positive X-direction). Therefore, the connector body 12 A can be reduced in size in the second perpendicular direction (X-direction), and the battery unit 810 A can be reduced in size. Moreover, a size of the body portion 832 A of the battery module 830 A in the second perpendicular direction can be made larger while a size of the case 820 of the battery unit 810 A in the second perpendicular direction is unchanged, so that a battery capacity of the body portion 832 A can be made larger.
- a connector 10 B according to a second embodiment of the present invention is used in the power storage device 80 (see FIG. 1 ) similar to the connector 10 (see FIG. 1 ).
- the connector 10 B is attachable to the panel 822 (see FIG. 3 ) and connectable to the two busbars 860 , namely the first busbar 862 and the second busbar 864 .
- the present invention is not limited thereto, but the connector 10 B can be used for connection of various devices.
- the Z-direction is the predetermined direction, or the connection direction along which two of the connectors 10 B are connected with each other via the busbar 860 .
- the negative Z-direction and the positive Z-direction are the first orientation and the second orientation, respectively.
- the X-direction is the perpendicular direction that is the insertion direction and the removal direction of the busbar 860 into and from the connector 10 B
- the Y-direction is the second perpendicular direction.
- the positive X-direction, the negative X-direction, the positive Y-direction and the negative Y-direction are the third orientation, the fourth orientation, the fifth orientation and the sixth direction, respectively.
- the connector 10 B of the present embodiment is formed by combining members similar to those of the connector 10 (see FIGS. 4, 7 and 8 ) according to the first embodiment and has a structure similar to that of the connector 10 .
- explanation is mainly made about difference between the connector 10 B and the connector 10 .
- the connector 10 B comprises a connector body 12 B and a cover 50 B made of insulator.
- the connector body 12 B comprises a housing 20 B made of insulator, two contacts 60 B each made of metal, namely a first contact 62 B and a second contact 64 B, the two nuts 72 and the two additional nuts 74 .
- the housing 20 B comprises a first member 30 B and a second member 40 B. The first member 30 B and the second member 40 B are combined with each other similar to the first embodiment, so that the connector body 12 B is formed.
- the first member 30 B of the housing 20 B has the attached portion 310 and the two holding portions 350 same as those of the first embodiment while having a busbar connection portion 330 B different from that of the first embodiment.
- the attached portion 310 is attachable to the panel 822 (see FIG. 3 ) and extends along the second perpendicular plane (YZ-plane) perpendicular to the perpendicular direction (X-direction).
- the attached surface 312 of the attached portion 310 is located in the second perpendicular plane.
- Each of the attachment holes 314 of the attached portion 310 passes through the attached portion 310 in the perpendicular direction.
- the busbar connection portion 330 B and the holding portions 350 project from the attached portion 310 along the fourth orientation (negative X-direction).
- the busbar connection portion 330 B is located at the middle of the attached portion 310 in the second perpendicular direction (Y-direction).
- the holding portions 350 are located at opposite sides of the busbar connection portion 330 B in the second perpendicular direction, respectively.
- the busbar connection portion 330 B is formed with a first opening 332 B and a second opening 334 B.
- the first opening 332 B and the second opening 334 B are located at opposite end portions of the busbar connection portion 330 B in the predetermined direction (Z-direction), respectively.
- the first opening 332 B opens outward in the second orientation (positive Z-direction) and opens outward in the fourth orientation (negative X-direction).
- the second opening 334 B opens outward in the first orientation (negative Z-direction) and opens outward in the fourth orientation.
- the first opening 332 B is visible when the housing 20 B is seen along the first orientation (negative Z-direction) in the predetermined direction (Z-direction) and is visible when the housing 20 B is seen along the third orientation (positive X-direction) in the perpendicular direction (X-direction) perpendicular to the predetermined direction.
- the second opening 334 B is visible when the housing 20 B is seen along the second orientation (positive Z-direction) opposite to the first orientation and is visible when the housing 20 B is seen along the third orientation.
- the busbar connection portion 330 B has a first protection portion 336 B and a second protection portion 338 B.
- Each of the first protection portion 336 B and the second protection portion 338 B is a part of the attached portion 310 .
- the first protection portion 336 B blocks an end of the first opening 332 B in the third orientation (positive X-direction).
- the second protection portion 338 B blocks an end of the second opening 334 B in the third orientation.
- the second member 40 B of the housing 20 B has the two additional holding portions 450 same as those of the first embodiment and has a base portion 410 B different from that of the first embodiment.
- the base portion 410 B is located at the middle of the second member 40 B in the second perpendicular direction (Y-direction).
- the base portion 410 B has a contact holding portion 420 B and a partition portion 440 B.
- the partition portion 440 B projects from the contact holding portion 420 B along the third orientation (positive X-direction).
- the additional holding portions 450 are located at opposite sides of the partition portion 440 B in the second perpendicular direction, respectively.
- the contact holding portion 420 B is inserted into the accommodation portion 380 (see FIG. 19 ) of the first member 30 B similar to the first embodiment.
- the thus-assembled housing 20 B is formed with a first receiving portion 422 B and a second receiving portion 424 B.
- the cover 50 B has a shape corresponding to a projecting portion of the first member 30 B of the housing 20 B, or a portion that projects from the attached portion 310 along the fourth orientation (negative X-direction).
- the cover 50 B has a space formed therewithin which has a shape corresponding to the projecting portion.
- the cover 50 B is provided with two busbar passages 510 B and the two removable walls 520 .
- the removable walls 520 are located at opposite end portions of the cover 50 B in the second perpendicular direction (Y-direction), respectively.
- each of the first contact 62 B and the second contact 64 B is a single metal plate with bends.
- explanation is made about a structure of the first contact 62 B.
- the first contact 62 B has the sub-portion 660 same as that of the first embodiment while having a main portion 610 B and a coupling portion 650 B different from those of the first embodiment.
- the main portion 610 B has a triangular shape when the first contact 62 B is seen along the third orientation (positive X-direction).
- the coupling portion 650 B extends with bends and couples the main portion 610 B and the sub-portion 660 to each other so that the main portion 610 B and the sub-portion 660 are arranged in the second perpendicular direction (Y-direction).
- the main portion 610 B has the held portion 620 , a spring portion 630 B and an additional spring portion (spring portion) 640 B.
- the spring portion 630 B and the additional spring portion 640 B extend from opposite ends of the held portion 620 in the second perpendicular direction (Y-direction), respectively, and extend along the second orientation (positive Z-direction) while approaching each other in the second perpendicular direction.
- Each of the spring portion 630 B and the additional spring portion 640 B is supported by the held portion 620 as a cantilever to be resiliently deformable.
- the spring portion 630 B has the contact portion 632
- the additional spring portion 640 B has the catch portion 642 .
- the contact portion 632 is movable in the second perpendicular direction according to resilient deformation of the spring portion 630 B.
- the catch portion 642 is movable in the second perpendicular direction according to resilient deformation of the additional spring portion 640 B.
- the spring portion 630 B is provided with the guide portion 638
- the additional spring portion 640 B is provided with the guide portion 648 .
- the guide portion 638 is an edge of a projecting portion which projects from the contact portion 632 of the spring portion 630 B along the fourth orientation (negative X-direction).
- the guide portion 648 is an edge of a projecting portion which projects from the catch portion 642 of the additional spring portion 640 B along the fourth orientation. Referring to FIG. 52 , a distance D between the guide portion 638 and the guide portion 648 in the second perpendicular direction (Y-direction) gradually decreases along the third orientation (positive X-direction).
- connection portion 670 is one of opposite sides of the sub-portion 660 in the perpendicular direction (X-direction) and is adjacent to the main portion 610 B in the second perpendicular direction (Y-direction).
- the additional connection portion 680 is a remaining one of the opposite sides of the sub-portion 660 in the perpendicular direction and projects from the connection portion 670 along the third orientation (positive X-direction).
- the connection portion 670 is formed with an attachment hole 672 .
- the attachment hole 672 passes through the connection portion 670 in the predetermined direction (Z-direction).
- the additional connection portion 680 is formed with an additional attachment hole 682 .
- the additional attachment hole 682 passes through the additional connection portion 680 in the predetermined direction.
- the second contact 64 B has a shape and a size identical to those of the first contact 62 B.
- the second contact 64 B is arranged to take a posture obtained by rotating a posture of the first contact 62 B by 180 degrees about the X-axis.
- the held portions 620 of the first contact 62 B and the second contact 64 B are arranged in the predetermined direction (Z-direction).
- the spring portion 630 B and the additional spring portion 640 B of the second contact 64 B extend from opposite ends of the held portion 620 in the second perpendicular direction (Y-direction), respectively, and extend along the first orientation (negative Z-direction) while approaching each other in the second perpendicular direction.
- the second contact 64 B has a structure identical to that of the first contact 62 B except the aforementioned difference.
- the spring portion 630 B and the additional spring portion 640 B have a mirror-symmetric shape with respect to a predetermined plane (XZ-plane).
- the contact portion 632 is supported by the spring portion 630 B so as to be movable in the second perpendicular direction (Y-direction), and the catch portion 642 is supported by the additional spring portion 640 B so as to be movable in the second perpendicular direction.
- each of the contacts 60 B is held by the housing 20 B.
- the contact portion 632 and the catch portion 642 of the first contact 62 B are located inside the first receiving portion 422 B of the housing 20 B.
- the contact portion 632 and the catch portion 642 of the second contact 64 B are located inside the second receiving portion 424 B of the housing 20 B.
- the connector body 12 B is connectable to the first busbar 862 and the second busbar 864 same as those of the first embodiment.
- the end of the first busbar 862 is inserted into the first receiving portion 422 B through the first opening 332 B along the third orientation (positive X-direction), and the end of the second busbar 864 is inserted into the second receiving portion 424 B through the second opening 334 B along the third orientation.
- the first receiving portion 422 B partially receives the first busbar 862 when the first busbar 862 is inserted through the first opening 332 B.
- the second receiving portion 424 B partially receives the second busbar 864 when the second busbar 864 is inserted through the second opening 334 B.
- the contact portion 632 and the catch portion 642 of the first contact 62 B are visible through the first opening 332 B both when the housing 20 B is seen along the first orientation (negative Z-direction) and when the housing 20 B is seen along the third orientation (positive X-direction).
- the contact portion 632 and the catch portion 642 of the second contact 64 B are visible through the second opening 334 B both when the housing 20 B is seen along the second orientation (positive Z-direction) and when the housing 20 B is seen along the third orientation.
- the contact portion 632 and the catch portion 642 of the first contact 62 B are located inside a first connection space 432 B which is a part of the first receiving portion 422 B.
- the first opening 332 B defines a boundary (see chain dotted line in FIG. 54 ) of the first connection space 432 B in the second perpendicular plane (YZ-plane) and defines another boundary of the first connection space 432 B in a perpendicular plane (XY-plane).
- the contact portion 632 and the catch portion 642 of the second contact 64 B are located inside a second connection space 434 B which is a part of the second receiving portion 424 B.
- the second opening 3346 defines a boundary (see chain dotted line in FIG. 54 ) of the second connection space 434 B in the second perpendicular plane and defines another boundary of the second connection space 434 B in the perpendicular plane.
- the contact portion 632 and the catch portion 642 of the first contact 62 B are brought into contact with the first busbar 862 when the first busbar 862 is partially received in the first connection space 432 B of the first receiving portion 422 B.
- the contact portion 632 and the catch portion 642 of the second contact 64 B which are arranged as described above, are brought into contact with the second busbar 864 when the second busbar 864 is partially received in the second connection space 434 B of the second receiving portion 424 B.
- the connector body 12 B is electrically connected with each of the first busbar 862 and the second busbar 864 .
- the connector 10 B according to the present embodiment is connectable with the other connector 10 B via the busbar 860 of a simple shape similar to the first embodiment.
- the first protection portion 336 B of the housing 20 B hides the first opening 332 B when the housing 20 B is seen along the fourth orientation (negative X-direction) opposite to the third orientation (positive X-direction).
- the second protection portion 338 B of the housing 20 B hides the second opening 334 B when the housing 20 B is seen along the fourth orientation. Similar to the first embodiment, the first protection portion 336 B stops the movement of the first busbar 862 (see FIG. 53 ) along the third orientation, and the second protection portion 338 B stops the movement of the second busbar 864 (see FIG. 53 ) along the third orientation.
- each of the contact portion 632 and the catch portion 642 in each of the contacts 60 B is located between the connection portions 670 of the two contacts 60 B in the second perpendicular direction (Y-direction).
- the contact portions 632 of the two contacts 60 B are arranged in the predetermined direction (Z-direction), and the catch portions 642 of the two contacts 60 B are arranged in the predetermined direction.
- the contact portion 632 and the catch portion 642 of the first contact 62 B equivalently apply spring forces to the first busbar 862 which is partially received in the first receiving portion 422 B and hold the first busbar 862 therebetween.
- the contact portion 632 and the catch portion 642 of the second contact 64 B equivalently apply spring forces to the second busbar 864 which is partially received in the second receiving portion 424 B and hold the second busbar 864 therebetween.
- This holding mechanism securely connects each of the contacts 60 B to the busbar 860 .
- the guide portions 638 and 648 of the first contact 62 B guide the first busbar 862 (see FIG. 53 ) when the first busbar 862 is inserted through the first opening 332 B.
- the guide portions 638 and 648 of the second contact 64 B guide the second busbar 864 (see FIG. 53 ) when the second busbar 864 is inserted through the second opening 334 B.
- each of the busbars 860 can be smoothly inserted.
- a part of the first opening 332 B extends in the predetermined direction (Z-direction), and a remaining part of the first opening 332 B extends in the perpendicular direction (X-direction).
- the first opening 332 B extends along the predetermined plane (XZ-plane) defined by the predetermined direction and the perpendicular direction.
- XZ-plane predetermined plane
- a part of the second opening 334 B extends in the predetermined direction, and a remaining part of the second opening 334 B extends in the perpendicular direction.
- the second opening 334 B extends along the predetermined plane.
- the first opening 332 B and the second opening 334 B extend in a common plane.
- the first opening 332 B and the second opening 334 B are located at positions same as each other in the perpendicular direction (X-direction).
- the busbar 860 can be easily inserted into the first opening 332 B and the second opening 334 B of two of the connectors 10 B that are adjacent to each other in the predetermined direction (Z-direction).
- the cover 50 B is attached to the connector body 12 B.
- the cover 50 B hides, at least in part, each of the first opening 332 B and the second opening 334 B when the connector 10 B is seen along the third orientation (positive X-direction). The thus-attached cover 50 B prevents the busbar 860 from coming off.
- each of the connection portions 670 is connectable to the cable 880 (connection member) other than the busbar 860 .
- each of the additional connection portions 680 is connectable to the terminal 834 or 836 (additional connection member) other than the busbar 860 (see FIG. 44 ) and the cable 880 (see FIG. 56 ).
- the two connection portions 670 of the connector body 12 B may be connected to the two cables 880 , respectively.
- the cover 50 B is formed with the cable passages 530 by removing the removable walls 520 (see FIG. 55 ) and is attached to the connector body 12 B.
- the cables 880 pass through the thus-formed cable passages 530 to extend outward of the connector 10 B, respectively.
- the present embodiment can be variously modified similar to the first embodiment.
- the connector body 12 B does not need to comprise the projecting portion which consists of the partition portion 440 B, the additional holding portions 450 and the additional connection portions 680 and which projects from the attached portion 310 along the third orientation (positive X-direction).
- the arrangement of the first opening 332 B and the second opening 334 B can be variously modified.
- the position of the first opening 332 B in the perpendicular direction (X-direction) may be different from the position of the second opening 334 B in the perpendicular direction to some extent.
- the position of the first opening 332 B in the second perpendicular direction may be different from the position of the second opening 334 B in the second perpendicular direction to some extent.
- the first opening 332 B and the second opening 334 B may extend along a plane that is in parallel to the predetermined direction (Z-direction) and oblique to the second perpendicular direction to some extent.
Abstract
Description
- This application is based on and claims priority under 35 U.S.C. § 119 to Japanese Patent Application No. JP 2017-000154 filed Jan. 4, 2017, the content of which is incorporated herein in its entirety by reference.
- This invention relates to a connector which is connectable with another connector via a busbar.
- For example, this type of connector is disclosed in JP 5247896B (Patent Document 1), the content of which is incorporated herein by reference.
- Referring to
FIG. 58 ,Patent Document 1 discloses a power storage device which comprises a plurality of battery units (not shown), a plurality ofconnectors 90 corresponding to the battery units, respectively, and a plurality of connection members (busbars) 96. The battery units are accommodated in a storing rack, which is not shown except apanel 992, and arranged in an upper-lower direction. Each of theconnectors 90 comprises ahousing 92 and two contacts (not shown) arranged left to right. Thehousings 92 are attached to thepanel 992 and arranged in the upper-lower direction. In each of theconnectors 90, the contacts are connected to a positive electrode and a negative electrode of the corresponding battery unit, respectively (not shown). - Each of the
busbars 96 has a flat-plate portion 962 and twoends housings 92 is formed with twoinsertion holes busbars 96 connects two of theconnectors 90, which are vertically adjacent to each other, with each other. In detail, theend 964 of thebusbar 96 is inserted in theinsertion hole 924 of thelower connector 90 and is connected to the left contact, and theend 966 of thebusbar 96 is inserted in theinsertion hole 926 of theupper connector 90 and is connected to the right contact. The aforementioned connection with use of thebusbars 96 connects the plurality of the battery units (not shown) with one another via the plurality of theconnectors 90. - The flat-
plate portion 962 of thebusbar 96 ofPatent Document 1 has a crank shape. In addition, each of theends busbar 96 is bent. Thebusbar 96 has a complicated shape as described above so that manufacturing cost increases. Moreover, in order to connect two of theconnectors 90 with each other, thebusbar 96 needs to be formed in a shape and a size corresponding to the arrangement of these twoconnectors 90. In other words, thebusbar 96 of a complicated shape is unsuitable for general use. - It is therefore an object of the present invention to provide a connector which is connectable with another connector via a busbar of a simple shape.
- An aspect of the present invention provides a connector connectable to two busbars of a first busbar and a second busbar. The connector comprises a housing and two contacts of a first contact and a second contact. The housing is formed with a first opening, a first receiving portion, a second opening and a second receiving portion. The first opening is visible when the housing is seen along a first orientation in a predetermined direction and is visible when the housing is seen along a third orientation in a perpendicular direction perpendicular to the predetermined direction. The second opening is visible when the housing is seen along a second orientation opposite to the first orientation and is visible when the housing is seen along the third orientation. The first receiving portion partially receives the first busbar when the first busbar is inserted through the first opening. The second receiving portion partially receives the second busbar when the second busbar is inserted through the second opening. Each of the contacts is held by the housing and has a contact portion. The contact portion of the first contact is located inside the first receiving portion and is brought into contact with the first busbar when the first busbar is partially received in the first receiving portion. The contact portion of the second contact is located inside the second receiving portion and is brought into contact with the second busbar when the second busbar is partially received in the second receiving portion.
- According to an aspect of the present invention, the first opening is visible both when the housing is seen along the first orientation and when the housing is seen along the third orientation perpendicular to the first orientation. In addition, the second opening is visible both when the housing is seen along the second orientation opposite to the first orientation and when the housing is seen along the third orientation. Each of the thus-formed first and second openings allows the insertion of the busbar along the third orientation. Under a state where first and second connectors according to an aspect of the present invention are arranged so that the first opening of the first connector faces the second opening of the second connector in the predetermined direction, only by moving the busbar of a simple rectangular shape along the third orientation, one of ends of the busbar is inserted into the first opening to be connected with the first connector, and a remaining one of the ends of the busbar is inserted into the second opening to be connected with the second connector. Thus, the connector according to an aspect of the present invention is connectable with the other connector via the busbar of a simple shape.
- An appreciation of the objectives of the present invention and a more complete understanding of its structure may be had by studying the following description of the preferred embodiment and by referring to the accompanying drawings.
-
FIG. 1 is a perspective view showing a power storage device which comprises connectors according to a first embodiment of the present invention. -
FIG. 2 is a perspective view showing a battery unit of the power storage device ofFIG. 1 , wherein the connector is attached to the battery unit, outlines of busbars connected to the connector are illustrated in dashed line, and a top plate of a case of the battery unit is not illustrated. -
FIG. 3 is a top view showing the battery unit and the connector ofFIG. 2 , wherein the top plate of the case is not illustrated. -
FIG. 4 is a perspective view showing the connector ofFIG. 2 , wherein outlines of the busbars connected to the connector are illustrated in dashed line. -
FIG. 5 is a perspective view showing a connector body and a cover of the connector ofFIG. 4 , wherein terminals of the battery unit are connected to the connector body. -
FIG. 6 is an exploded, perspective view showing the connector ofFIG. 4 . -
FIG. 7 is a perspective view showing the connector body ofFIG. 5 , wherein outlines of the busbars connected to the connector body are illustrated in dashed line. -
FIG. 8 is another perspective view showing the connector body ofFIG. 7 . -
FIG. 9 is a front view showing the connector body ofFIG. 7 , wherein outlines of the busbars connected to the connector body are illustrated in dashed line. -
FIG. 10 is a side view showing the connector body ofFIG. 7 . -
FIG. 11 is another side view showing the connector body ofFIG. 7 , wherein an outline of the cover of the connector is illustrated in dashed line. -
FIG. 12 is a top view showing the connector body ofFIG. 7 . -
FIG. 13 is a bottom view showing the connector body ofFIG. 7 . -
FIG. 14 is a rear view showing the connector body ofFIG. 7 , wherein an outline of the cover is illustrated in dashed line. -
FIG. 15 is a cross-sectional view showing the connector body ofFIG. 9 , taken along line XV-XV. -
FIG. 16 is a cross-sectional view showing the connector body ofFIG. 9 , taken along line XVI-XVI. -
FIG. 17 is a cross-sectional view showing the connector body ofFIG. 9 , taken along line XVII-XVII, wherein the busbars are connected to the connector body, parts of first and second receiving portions (parts each enclosed by dashed line) are enlarged to be illustrated, and boundaries of first and second connection spaces in the enlarged views are illustrated in chain dotted line. -
FIG. 18 is a cross-sectional view showing the connector body ofFIG. 10 , taken along line XVIII-XVIII. -
FIG. 19 is a perspective view showing a first member of a housing of the connector body ofFIG. 7 . -
FIG. 20 is a perspective view showing a second member of the housing of the connector body ofFIG. 7 . -
FIG. 21 is a perspective view showing two contacts of the connector body ofFIG. 7 . -
FIG. 22 is a perspective view showing a first contact of the two contacts ofFIG. 21 . -
FIG. 23 is a top view showing the first contact ofFIG. 22 , wherein a part of the contact (part enclosed by dashed line) is enlarged to be illustrated. -
FIG. 24 is a side view showing the two contacts ofFIG. 21 . -
FIG. 25 is a perspective view showing the connector body ofFIG. 7 together with the two busbars, wherein each of the busbars is under a state where connection to the connector body starts. -
FIG. 26 is a front view showing two of the battery units of the power storage device ofFIG. 1 , wherein the connector bodies are attached to the battery units, respectively, and the two connector bodies are connected with each other via the busbar. -
FIG. 27 is a side view showing the battery units, the connector bodies and the busbar ofFIG. 26 . -
FIG. 28 is another side view showing the battery units, the connector bodies and the busbar ofFIG. 26 . -
FIG. 29 is still another side view showing the battery units, the connector bodies and the busbar ofFIG. 26 . -
FIG. 30 is a perspective view showing the connector body ofFIG. 7 together with the busbar and a cable, wherein each of the busbar and the cable is connected to the connector body. -
FIG. 31 is a perspective view showing the connector body, the busbar and the cable ofFIG. 30 , wherein the cover is attached to the connector body. -
FIG. 32 is a perspective view showing a modification of the connector body ofFIG. 7 . -
FIG. 33 is another perspective view showing the connector body ofFIG. 32 . -
FIG. 34 is a side view showing the connector body ofFIG. 32 . -
FIG. 35 is another side view showing the connector body ofFIG. 32 . -
FIG. 36 is a top view showing the connector body ofFIG. 32 . -
FIG. 37 is a bottom view showing the connector body ofFIG. 32 . -
FIG. 38 is a cross-sectional view showing the connector body ofFIG. 36 , taken along line XXXVIII-XXXVIII. -
FIG. 39 is a cross-sectional view showing the connector body ofFIG. 36 , taken along line XXXIX-XXXIX. -
FIG. 40 is a perspective view showing a modification of the battery unit ofFIG. 2 , wherein the top plate of the case is not illustrated. -
FIG. 41 is a perspective view showing the battery unit ofFIG. 40 , wherein the connector body ofFIG. 32 is attached to the battery unit, the connector body and therearound (part enclosed by dashed line) is enlarged to be illustrated, and the top plate of the case is not illustrated. -
FIG. 42 is a top view showing the battery unit and the connector body ofFIG. 41 , wherein the top plate of the case is not illustrated. -
FIG. 43 is a perspective view showing the connector body ofFIG. 41 , wherein terminals of the battery unit are connected to the connector body. -
FIG. 44 is a perspective view showing a connector body of a connector according to a second embodiment of the present invention, wherein outlines of the busbars connected to the connector body are illustrated in dashed line. -
FIG. 45 is another perspective view showing the connector body ofFIG. 44 . -
FIG. 46 is a front view showing the connector body ofFIG. 44 . -
FIG. 47 is a top view showing the connector body ofFIG. 44 . -
FIG. 48 is a bottom view showing the connector body ofFIG. 44 . -
FIG. 49 is a rear view showing the connector body ofFIG. 44 . -
FIG. 50 is a perspective view showing two contacts of the connector body ofFIG. 44 . -
FIG. 51 is a front view showing the two contacts ofFIG. 50 . -
FIG. 52 is a top view showing a first contact of the two contacts ofFIG. 50 , wherein a part of the contact (part enclosed by dashed line) is enlarged to be illustrated. -
FIG. 53 is a perspective view showing the connector body ofFIG. 44 together with the two busbars, wherein each of the busbars is under a state where connection to the connector body starts. -
FIG. 54 is a front view showing the connector body and the busbars ofFIG. 53 , wherein each of the busbars is connected to the connector body, first and second openings and therearound (parts each enclosed by dashed line) are enlarged to be illustrated, and boundaries of first and second connection spaces in the enlarged views are illustrated in chain dotted line. -
FIG. 55 is a perspective view showing the connector body and the busbars ofFIG. 54 , wherein a cover is attached to the connector body. -
FIG. 56 is a perspective view showing the connector body ofFIG. 44 together with the two cables, wherein each of the cables is connected to the connector body. -
FIG. 57 is a perspective view showing the connector body and the cables ofFIG. 56 , wherein the cover is attached to the connector body. -
FIG. 58 is perspective view showing a part of a power storage device ofPatent Document 1. - While the invention is susceptible to various modifications and alternative forms, specific embodiments thereof are shown by way of example in the drawings and will herein be described in detail. It should be understood, however, that the drawings and detailed description thereto are not intended to limit the invention to the particular form disclosed, but on the contrary, the intention is to cover all modifications, equivalents and alternatives falling within the spirit and scope of the present invention as defined by the appended claims.
- In the following explanation, a rectangular coordinate system is used to indicate positions and directions, wherein this rectangular coordinate system consists of three axes, namely the X-axis, the Y-axis and the Z-axis, perpendicular to one another. Moreover, the word “orientation” is used, instead of “direction”, to indicate each of a positively oriented direction and a negatively oriented direction in an axis, for example, the positive X-direction and the negative X-direction in the X-axis. On the other hand, the word “direction” is used to indicate an unoriented direction such as the X-direction.
- Referring to
FIG. 1 , aconnector 10 according to a first embodiment of the present invention is used in apower storage device 80. Thepower storage device 80 of the present embodiment comprises a plurality ofbattery units 810 arranged in two rows in a left-right direction (Y-direction). Thebattery units 810 in each row are arranged in an upper-lower direction (Z-direction). Thepower storage device 80 is accommodated in a storing rack (not shown). In detail, the storing rack is provided with a plurality of shelves (not shown) corresponding to thebattery units 810, respectively. Each of thebattery units 810 is placed on the corresponding shelf. - Referring to
FIGS. 1 and 2 , each of thebattery units 810 comprises abattery module 830. Theconnectors 10 are connected to thebattery modules 830, respectively. Theconnectors 10 connect a plurality of thebattery modules 830 with one another viabusbars 860 and cables (connection members) 880 so that thepower storage device 80 is formed. As described above, theconnector 10 of the present embodiment is uses to connect thebattery modules 830 with each other. However, the present invention is not limited thereto, but theconnector 10 can be used for connection of various devices. - In the present embodiment, each of the
busbars 860 connects adjacent two of theconnectors 10 in the Z-direction with each other. When thebusbar 860 is connected to or disconnected from theconnector 10, thebusbar 860 is moved in the Y-direction to be inserted into or removed from theconnector 10. - In the present embodiment, the Z-direction is the connection direction along which two of the
connectors 10 are connected with each other via thebusbar 860. This Z-direction is referred to as “predetermined direction”. The negative Z-direction in the predetermined direction is referred to as “first orientation”, and the positive Z-direction in the predetermined direction is referred to as “second orientation”. Moreover, the Y-direction is the insertion and removal direction along which thebusbar 860 is inserted and removed. This Y-direction is referred to as “perpendicular direction”. The negative Y-direction in the perpendicular direction is referred to as “third orientation”, and the positive Y-direction in the perpendicular direction is referred to as “fourth orientation”. Moreover, the X-direction that is perpendicular to both the predetermined direction and the perpendicular direction is referred to as “second perpendicular direction”. The negative X-direction in the second perpendicular direction is referred to as “fifth orientation”, and the positive X-direction in the second perpendicular direction is referred to as “sixth orientation”. - Referring to
FIGS. 4 to 6 , theconnector 10 of the present embodiment comprises aconnector body 12 and acover 50 made of insulator. Referring toFIG. 6 , theconnector body 12 comprises ahousing 20 made of insulator, twocontacts 60 each made of metal, namely afirst contact 62 and asecond contact 64, twonuts 72 each made of metal and twoadditional nuts 74 each made of metal. In the present embodiment, thehousing 20 comprises afirst member 30 and asecond member 40. Moreover, thenut 72 and theadditional nut 74 have identical shapes and sizes. However, the present invention is not limited thereto. For example, thehousing 20 may be a single member or otherwise may comprise three or more members. Thenut 72 and theadditional nut 74 may have different shapes and sizes. Moreover, theconnector 10 may consist of theconnector body 12. - Hereafter, explanation is made about a structure of each member of the
connector 10. - As shown in
FIGS. 6, 7, 9, 12 and 19 , thefirst member 30 of thehousing 20 has an attachedportion 310, abusbar connection portion 330 and two holdingportions 350. The attachedportion 310 has a flat-plate shape and extends along a predetermined plane (YZ-plane) defined by the predetermined direction (Z-direction) and the perpendicular direction (Y-direction). Thebusbar connection portion 330 and the holdingportions 350 project from the attachedportion 310 along the fifth orientation (negative X-direction). Thebusbar connection portion 330 is located at the middle of the attachedportion 310 in the perpendicular direction and extends between opposite ends of the attachedportion 310 in the predetermined direction. The holdingportions 350 are located at opposite sides of thebusbar connection portion 330 in the perpendicular direction, respectively. - As shown in
FIG. 19 , the attachedportion 310 has an attachedsurface 312. The attachedsurface 312 is located in the predetermined plane (YZ-plane). Referring toFIGS. 7, 8 and 19 , the attachedportion 310 is formed with two attachment holes 314. The attachment holes 314 are located at opposite end portions of the attachedportion 310 in the perpendicular direction (Y-direction), respectively. Each of the attachment holes 314 passes through the attachedportion 310 in the second perpendicular direction (X-direction). - Referring to
FIGS. 17 and 19 , thebusbar connection portion 330 is provided with anaccommodation portion 380. Theaccommodation portion 380 is a space formed inside thebusbar connection portion 330 and opens outward in the sixth orientation (positive X-direction). - Referring to
FIGS. 7, 8, 10, 12, 13 and 19 , thebusbar connection portion 330 is formed with afirst opening 332 and asecond opening 334. Thefirst opening 332 and thesecond opening 334 are located at opposite end portions of thebusbar connection portion 330 in the predetermined direction (Z-direction), respectively. Each of thefirst opening 332 and thesecond opening 334 is a space which connects the outside of thefirst member 30 with theaccommodation portion 380, or the inside of thefirst member 30. Thefirst opening 332 opens outward in the second orientation (positive Z-direction) and opens outward in the fourth orientation (positive Y-direction). Thesecond opening 334 opens outward in the first orientation (negative Z-direction) and opens outward in the fourth orientation. - As shown in
FIGS. 7, 8, 11, 12, 13 and 19 , thebusbar connection portion 330 has afirst protection portion 336 and asecond protection portion 338. Referring toFIGS. 18 and 19 , each of thefirst protection portion 336 and thesecond protection portion 338 is a part of a wall that covers theaccommodation portion 380. Referring toFIGS. 7, 8 and 12 , thefirst protection portion 336 corresponds to thefirst opening 332. More specifically, in the perpendicular direction (Y-direction), thefirst protection portion 336 blocks an end of thefirst opening 332 in the third orientation (negative Y-direction). Referring toFIG. 13 , thesecond protection portion 338 corresponds to thesecond opening 334. More specifically, in the perpendicular direction, thesecond protection portion 338 blocks an end of thesecond opening 334 in the third orientation. - Referring to
FIGS. 6, 15, 16 and 18 , each of the holdingportions 350 is formed with a holdinghole 352. Thus, thehousing 20 is formed with the two holdingholes 352. Each of the holdingholes 352 is a hole with a bottom and opens outward in the second orientation (positive Z-direction). Each of the holdingholes 352 has a shape and a size corresponding to thenut 72. Referring toFIG. 19 , each of the holdingportions 350 is formed with aninsertion portion 392. Each of theinsertion portions 392 is a space which opens outward in the sixth orientation (positive X-direction). - As shown in
FIGS. 6, 8, 12, 14 and 20 , thesecond member 40 of thehousing 20 has abase portion 410 and two additional holdingportions 450. Thebase portion 410 is located at the middle of thesecond member 40 in the perpendicular direction (Y-direction). Thebase portion 410 has acontact holding portion 420 and apartition portion 440. Thecontact holding portion 420 extends between opposite ends of thesecond member 40 in the predetermined direction (Z-direction). Thepartition portion 440 is located at the middle of thecontact holding portion 420 in the predetermined direction and projects along the sixth orientation (positive X-direction) from thecontact holding portion 420. Theadditional holding portions 450 are located at opposite sides of thepartition portion 440 in the perpendicular direction. - Referring to
FIGS. 6, 17, 18 and 20 , thecontact holding portion 420 is formed with afirst receiving portion 422 and asecond receiving portion 424. Each of the first receivingportion 422 and thesecond receiving portion 424 is a space formed inside thecontact holding portion 420. Thefirst receiving portion 422 and thesecond receiving portion 424 are located at opposite sides of thecontact holding portion 420 in the predetermined direction (Z-direction) and separated from each other in the predetermined direction by a separation wall. Referring toFIGS. 6 and 20 , the first receivingportion 422 opens outward in the second orientation (positive Z-direction) and opens outward in the fourth orientation (positive Y-direction). Referring toFIG. 6 , thesecond receiving portion 424 opens outward in the first orientation (negative Z-direction) and opens outward in the third orientation (negative Y-direction). - Referring to
FIGS. 6, 17, 18 and 20 , thecontact holding portion 420 has afirst holding portion 426 and asecond holding portion 428. Referring toFIGS. 17, 18 and 20 , thefirst holding portion 426 is located inside the first receivingportion 422 and projects along the fourth orientation (positive Y-direction) from a wall that covers the first receivingportion 422. Referring toFIGS. 6, 17 and 18 , thesecond holding portion 428 is located inside thesecond receiving portion 424 and projects along the third orientation (negative Y-direction) from a wall that covers thesecond receiving portion 424. - As shown in
FIGS. 6, 15, 16 and 20 , each of the additional holdingportions 450 is formed with anadditional holding hole 452. Thus, thehousing 20 is formed with the two additional holding holes 452. Each of the additional holdingholes 452 is a hole with a bottom and opens outward in the second orientation (positive Z-direction). Each of the additional holdingholes 452 has a shape and a size corresponding to theadditional nut 74. - Referring to
FIGS. 5 and 6 , thecover 50 has a shape corresponding to a projecting portion of thefirst member 30 of thehousing 20, or a portion that projects from the attachedportion 310 along the fifth orientation (negative X-direction). Thecover 50 has a space formed therewithin which has a shape corresponding to the projecting portion. - The
cover 50 is provided with twobusbar passages 510 and tworemovable walls 520. Thebusbar passages 510 are formed in opposite end portions of thecover 50 in the predetermined direction (Z-direction), respectively. Each of thebusbar passages 510 is a space which connects the inside and the outside of thecover 50 with each other and is located at the middle of thecover 50 in the perpendicular direction (Y-direction). Theremovable walls 520 are located at opposite end portions of thecover 50 in the perpendicular direction, respectively. Each of theremovable walls 520 is formed to be easily removable from thecover 50. - Referring to
FIGS. 21 and 24 , in the present embodiment, each of thefirst contact 62 and thesecond contact 64 is a single metal plate with bends. Hereafter, explanation is made about a structure of thefirst contact 62. - As shown in
FIGS. 21 and 22 , thefirst contact 62 has amain portion 610, acoupling portion 650 and asub-portion 660. Themain portion 610 has a triangular shape when thefirst contact 62 is seen along the third orientation (negative Y-direction). Thesub-portion 660 has a rectangular flat-plate shape which extends along a perpendicular plane (XY-plane). Thecoupling portion 650 extends with bends and couples themain portion 610 and the sub-portion 660 to each other so that themain portion 610 and the sub-portion 660 are arranged in the perpendicular direction (Y-direction). - The
main portion 610 has a heldportion 620, aspring portion 630 and an additional spring portion (spring portion) 640. The heldportion 620 has a rectangular flat-plate shape which extends along the perpendicular plane (XY-plane). Thespring portion 630 and theadditional spring portion 640 extend from opposite ends of the heldportion 620 in the second perpendicular direction (X-direction), respectively, and extend along the second orientation (positive Z-direction) while approaching each other in the second perpendicular direction. Each of thespring portion 630 and theadditional spring portion 640 has a fixed end that is fixed to the heldportion 620 and a free end that is located opposite to the fixed end in the predetermined direction (Z-direction). In other words, each of thespring portion 630 and theadditional spring portion 640 is supported by the heldportion 620 as a cantilever to be resiliently deformable. - As shown in
FIGS. 22 and 23 , thespring portion 630 has acontact portion 632 located in the vicinity of its free end, and theadditional spring portion 640 has a catch portion (contact portion) 642 located in the vicinity of its free end. Thecontact portion 632 is movable in the second perpendicular direction (X-direction) according to resilient deformation of thespring portion 630. Thecatch portion 642 is movable in the second perpendicular direction according to resilient deformation of theadditional spring portion 640. - As shown in
FIGS. 23 and 24 , thespring portion 630 is provided with aguide portion 638, and theadditional spring portion 640 is provided with aguide portion 648. Theguide portion 638 is an edge of a projecting portion which projects from thespring portion 630 along the fourth orientation (positive Y-direction). Theguide portion 648 is an edge of another projecting portion which projects from theadditional spring portion 640 along the fourth orientation. As shown inFIG. 24 , a distance D between theguide portion 638 and theguide portion 648 in the second perpendicular direction (X-direction) gradually decreases along the third orientation (negative Y-direction). - Referring to
FIG. 22 , thesub-portion 660 has aconnection portion 670 and anadditional connection portion 680. Theconnection portion 670 is one of opposite sides of the sub-portion 660 in the second perpendicular direction (X-direction) and is adjacent to themain portion 610 in the perpendicular direction (Y-direction). Theadditional connection portion 680 is a remaining one of the opposite sides of the sub-portion 660 in the second perpendicular direction and projects from theconnection portion 670 along the fifth orientation (positive X-direction). In the present embodiment, no visible boundary portion is provided between theconnection portion 670 and theadditional connection portion 680. However, the present invention is not limited thereto. For example, theconnection portion 670 and theadditional connection portion 680 may be separated from each other in the perpendicular direction by a visible boundary portion such as a groove or a projection. Moreover, thefirst contact 62 may have thecoupling portion 650 and the sub-portion 660 as necessary. - The
connection portion 670 is formed with anattachment hole 672. Theattachment hole 672 passes through theconnection portion 670 in the predetermined direction (Z-direction). Theadditional connection portion 680 is formed with anadditional attachment hole 682. Theadditional attachment hole 682 passes through theadditional connection portion 680 in the predetermined direction. - Referring to
FIGS. 21 and 24 , thesecond contact 64 has a shape and a size identical to those of thefirst contact 62. However, thesecond contact 64 is arranged to take a posture obtained by rotating a posture of thefirst contact 62 by 180 degrees about the Z-axis followed by further rotating it by 180 degrees about the Y-axis. The heldportions 620 of thefirst contact 62 and thesecond contact 64 are arranged in the predetermined direction (Z-direction). Thespring portion 630 and theadditional spring portion 640 of thesecond contact 64 extend from opposite ends of the heldportion 620 in the second perpendicular direction (X-direction), respectively, and extend along the first orientation (negative Z-direction) while approaching each other in the second perpendicular direction. - Referring to
FIG. 24 , thesecond contact 64 has a structure identical to that of thefirst contact 62 except the aforementioned difference. Thus, each of thecontacts 60 has thespring portion 630, thecontact portion 632, theadditional spring portion 640, thecatch portion 642, theconnection portion 670, theadditional connection portion 680 and the twoguide portions contacts 60, thecontact portion 632 is supported by thespring portion 630 so as to be movable in the second perpendicular direction (X-direction), and thecatch portion 642 is supported by theadditional spring portion 640 so as to be movable in the second perpendicular direction. - Referring to
FIG. 24 , according to the present embodiment, in each of thefirst contact 62 and thesecond contact 64, thespring portion 630 and theadditional spring portion 640 have a mirror-symmetric shape with respect to the predetermined plane (YZ-plane). Therefore, theadditional spring portion 640 works similar to thespring portion 630, and thecatch portion 642 works similar to thecontact portion 632. However, the present invention is not limited thereto. For example, theadditional spring portion 640 may have a shape and a spring force different from those of thespring portion 630. Moreover, thesecond contact 64 may have a shape and a size different from those of thefirst contact 62. However, the present embodiment is preferable in order to reduce types of components to lower manufacturing cost. - The aforementioned members are combined as describe below to form the connector body 12 (see
FIG. 7 ). - Referring to
FIG. 6 , theadditional nuts 74 are inserted into the additional holdingholes 452 of thesecond member 40, respectively. The thus-insertedadditional nuts 74 are received in and held by the additional holdingholes 452, respectively. Then, thefirst contact 62 is attached to thesecond member 40. In detail, themain portion 610 of thefirst contact 62 is attached around the first holding portion 426 (seeFIG. 20 ) of thesecond member 40. Meanwhile, theadditional connection portion 680 of thefirst contact 62 is placed on one of the additional holdingportions 450 so that theadditional attachment hole 682 is located on theadditional holding hole 452. Similarly, thesecond contact 64 is attached to thesecond member 40. In detail, themain portion 610 of thesecond contact 64 is attached around thesecond holding portion 428 of thesecond member 40. Meanwhile, theadditional connection portion 680 of thesecond contact 64 is placed on a remaining one of the additional holdingportions 450 so that theadditional attachment hole 682 is located on theadditional holding hole 452. - Then, the nuts 72 are inserted into the holding
holes 352 of thefirst member 30, respectively. The thus-insertednuts 72 are received in and held by the holdingholes 352, respectively. Then, thesecond member 40 is attached to thefirst member 30 together with the twocontacts 60, or thefirst contact 62 and thesecond contact 64. In detail, referring toFIGS. 19 and 20 , thecontact holding portion 420 of thesecond member 40 is inserted into theaccommodation portion 380 of thefirst member 30. In this insertion, ends of the two additional holdingportions 450 of thesecond member 40, together with theconnection portions 670 of the contacts 60 (seeFIG. 6 ), are inserted into the twoinsertion portions 392 of thefirst member 30, respectively. Referring toFIGS. 6 and 7 , as a result of the aforementioned insertion, theconnection portions 670 of thecontacts 60 are placed on the holdingportions 350, respectively, so that the attachment holes 672 are located on the holdingholes 352, respectively. Referring toFIG. 17 , in this state, twoengagement projections 482 of thesecond member 40 are engaged with twoengagement holes 382 of thefirst member 30, respectively, so that theconnector body 12 is formed. - Hereafter, explanation is made about a structure and a function of the connector body 12 (connector 10) formed as described above.
- Referring to
FIGS. 7 and 10 , thehousing 20 is formed with thefirst opening 332 and thesecond opening 334. As shown inFIGS. 10 and 12 , thefirst opening 332 is visible when thehousing 20 is seen along the first orientation (negative Z-direction) in the predetermined direction (Z-direction) and is visible when thehousing 20 is seen along the third orientation (negative Y-direction) in the perpendicular direction (Y-direction) perpendicular to the predetermined direction. As shown inFIGS. 10 and 13, thesecond opening 334 is visible when thehousing 20 is seen along the second orientation (positive Z-direction) opposite to the first orientation and is visible when thehousing 20 is seen along the third orientation. - Referring to
FIGS. 17 and 18 , each of the first receivingportion 422 and thesecond receiving portion 424 is arranged inside thehousing 20 as a part of theaccommodation portion 380. In other words, thehousing 20 is formed with the first receivingportion 422 and thesecond receiving portion 424. Each of thecontacts 60 is held by thehousing 20. In detail, themain portion 610 of thefirst contact 62 is located inside the first receivingportion 422, and the heldportion 620 is held by thefirst holding portion 426. Themain portion 610 of thesecond contact 64 is located inside thesecond receiving portion 424, and the heldportion 620 is held by thesecond holding portion 428. Thecontact portion 632 and thecatch portion 642 of the thus-heldfirst contact 62 are located inside the first receivingportion 422. Similarly, thecontact portion 632 and thecatch portion 642 of thesecond contact 64 are located inside thesecond receiving portion 424. - Referring to
FIG. 2 , in the present embodiment, theconnector body 12 is attached to thebattery unit 810 when used. Referring toFIGS. 2 and 3 , thebattery unit 810 comprises acase 820 with a panel (object) 822 in addition to thebattery module 830. Thebattery module 830 is accommodated inside thecase 820. Thebattery module 830 has abody portion 832 and twoterminals terminals body portion 832, and a remaining one of theterminals body portion 832. The attachedportion 310 of theconnector body 12 is attached and fixed to thepanel 822 of thecase 820 by screws passing through the attachment holes 314. The thus-fixed attachedsurface 312 is in contact with thepanel 822. - Referring to
FIG. 3 , the additional holdingportions 450 of theconnector body 12, together with theadditional connection portions 680 of the contacts 60 (seeFIG. 8 ), pass through a hole (not shown) of thepanel 822 and project inside thecase 820. Referring toFIG. 3 together withFIG. 5 , theterminals battery module 830 are fixed to theadditional connection portions 680, respectively, bybolts 890 and the additional nuts 74 (seeFIGS. 15 and 16 ) so that theconnector body 12 is electrically connected with thebattery module 830. - Referring to
FIG. 8 , theconnector body 12 has a projecting portion which consists of thepartition portion 440, the two additional holdingportions 450 and the twoadditional connection portions 680. The projecting portion projects from the attachedportion 310 along the sixth orientation (positive X-direction) and has an asymmetrical shape in the predetermined direction (Z-direction). The hole (not shown) of the panel 822 (seeFIG. 3 ) has a shape which corresponds to this asymmetrical shape. Therefore, theconnector body 12 is attachable to thepanel 822 only under a state where thepartition portion 440 projects beyond the additional holdingportions 450 along the second orientation (positive Z-direction). - Referring to
FIG. 1 , two of theconnector bodies 12 that are adjacent to each other in the predetermined direction (Z-direction) are connected with each other by one of thebusbars 860. In detail, referring toFIG. 2 , two of thebusbars 860 are connected to opposite sides of theconnector body 12 in the predetermined direction, respectively. Each of thebusbars 860 is formed of conductor such as metal and has a rectangular flat-plate shape. More specifically, each of thebusbars 860 is a metal plate having a simple rectangular shape. - One of the
busbars 860 is afirst busbar 862 that extends from theconnector body 12 along the second orientation (positive Z-direction), and a remaining one of thebusbars 860 is asecond busbar 864 that extends from theconnector body 12 along the first orientation (negative Z-direction). Theconnector body 12 is connectable to thefirst busbar 862 and thesecond busbar 864 of the twobusbars 860. In the present embodiment, thefirst busbar 862 and thesecond busbar 864 have identical shapes and sizes. However, the present invention is not limited thereto, but thefirst busbar 862 and thesecond busbar 864 may have different shapes and sizes to some extent. - Referring to
FIG. 25 together withFIG. 10 , an end of thefirst busbar 862 is inserted into the first receivingportion 422 through thefirst opening 332 along the third orientation (negative Y-direction), and an end of thesecond busbar 864 is inserted into thesecond receiving portion 424 through thesecond opening 334 along the third orientation. The first, receivingportion 422 partially receives thefirst busbar 862 when thefirst busbar 862 is inserted through thefirst opening 332. Thesecond receiving portion 424 partially receives thesecond busbar 864 when thesecond busbar 864 is inserted through thesecond opening 334. - As shown in
FIGS. 10 and 12 , thecontact portion 632 and thecatch portion 642 of thefirst contact 62 are visible through thefirst opening 332 both when thehousing 20 is seen along the first orientation (negative Z-direction) and when thehousing 20 is seen along the third orientation (negative Y-direction). As shown inFIGS. 10 and 13 , thecontact portion 632 and thecatch portion 642 of thesecond contact 64 are visible through thesecond opening 334 both when thehousing 20 is seen along the second orientation (positive Z-direction) and when thehousing 20 is seen along the third orientation. - In detail, referring to
FIG. 17 , thecontact portion 632 and thecatch portion 642 of thefirst contact 62 are located inside afirst connection space 432 which is a part of the first receivingportion 422. Thefirst opening 332 defines a boundary (see chain dotted line inFIG. 17 ) of thefirst connection space 432 in a second perpendicular plane (XZ-plane) and defines another boundary of thefirst connection space 432 in the perpendicular plane (XY-plane). Thecontact portion 632 and thecatch portion 642 of thesecond contact 64 are located inside asecond connection space 434 which is a part of thesecond receiving portion 424. Thesecond opening 334 defines a boundary (see chain dotted line inFIG. 17 ) of thesecond connection space 434 in the second perpendicular plane and defines another boundary of thesecond connection space 434 in the perpendicular plane. - As shown in
FIG. 17 , thecontact portion 632 and thecatch portion 642 of thefirst contact 62, which are arranged as described above, are brought into contact with thefirst busbar 862 when thefirst busbar 862 is partially received in thefirst connection space 432 of the first receivingportion 422. Similarly, thecontact portion 632 and thecatch portion 642 of thesecond contact 64, which are arranged as described above, are brought into contact with thesecond busbar 864 when thesecond busbar 864 is partially received in thesecond connection space 434 of thesecond receiving portion 424. As a result, theconnector body 12 is electrically connected with each of thefirst busbar 862 and thesecond busbar 864. Referring toFIG. 17 together withFIG. 5 , theterminal 834 of thebattery module 830 is electrically connected with thefirst busbar 862, and the terminal 836 is electrically connected with thesecond busbar 864. - As described above, each of the
first opening 332 and thesecond opening 334 according to the present embodiment allows the insertion of thebusbar 860 along the third orientation (negative Y-direction). Referring toFIG. 17 together withFIG. 1 , under a state where thefirst opening 332 of theconnector 10 is arranged to face thesecond opening 334 of theother connector 10 in the predetermined direction (Z-direction), only by moving thebusbar 860 of a simple rectangular shape along the third orientation, one of the ends of thebusbar 860 is inserted into thefirst opening 332 to be connected with theconnector 10, and a remaining one of the ends of thebusbar 860 is inserted into thesecond opening 334 to be connected with theother connector 10. Thus, theconnector 10 according to the present embodiment is connectable with theother connector 10 via thebusbar 860 of a simple shape. - Referring to
FIGS. 10 and 11 , thehousing 20 has thefirst protection portion 336 and thesecond protection portion 338. Thefirst protection portion 336 hides thefirst opening 332 when thehousing 20 is seen along the fourth orientation (positive Y-direction) opposite to the third orientation (negative Y-direction). Thesecond protection portion 338 hides thesecond opening 334 when thehousing 20 is seen along the fourth orientation. According to the present embodiment, thefirst protection portion 336 stops the movement of the first busbar 862 (seeFIG. 25 ) along the third orientation. Thesecond protection portion 338 stops the movement of the second busbar 864 (seeFIG. 25 ) along the third orientation. - Referring to
FIG. 18 , if thefirst protection portion 336 and thesecond protection portion 338 are not provided, the first busbar 862 (seeFIG. 25 ) inserted into the first receivingportion 422 along the third orientation (negative Y-direction) and the second busbar 864 (seeFIG. 25 ) inserted into thesecond receiving portion 424 along the third orientation might be moved to the holdingportion 350 through the first receivingportion 422 and thesecond receiving portion 424. In particular, if thefirst busbar 862 is moved to the holdingportion 350 which is provided with theconnection portion 670 of thesecond contact 64, thefirst busbar 862 might be brought into contact with theconnection portion 670 of thesecond contact 64. However, according to the present embodiment, since thefirst protection portion 336 and thesecond protection portion 338 are provided, thefirst busbar 862 and thesecond busbar 864 are stopped to be securely kept inside the first receivingportion 422 and thesecond receiving portion 424, respectively. However, the present invention is not limited thereto, but thefirst protection portion 336 and thesecond protection portion 338 may be provided as necessary. - Referring to
FIGS. 17 and 18 , each of thecontact portion 632 and thecatch portion 642 in each of thecontacts 60 of the present embodiment is located between theconnection portions 670 of the twocontacts 60 in the perpendicular direction (Y-direction). Moreover, thecontact portions 632 of the twocontacts 60 are arranged in the predetermined direction (Z-direction), and thecatch portions 642 of the twocontacts 60 are arranged in the predetermined direction. When thefirst busbar 862 is inserted, thecontact portion 632 and thecatch portion 642 of thefirst contact 62 equivalently apply spring forces to thefirst busbar 862 which is partially received in the first receivingportion 422 and hold thefirst busbar 862 therebetween. Similarly, when thesecond busbar 864 is inserted, thecontact portion 632 and thecatch portion 642 of thesecond contact 64 equivalently apply spring forces to thesecond busbar 864 which is partially received in thesecond receiving portion 424 and hold thesecond busbar 864 therebetween. This holding mechanism securely connects each of thecontacts 60 to thebusbar 860. - However, the present invention is not limited thereto. For example, the
catch portion 642 may be supported so as to apply a spring force stronger than that of thecontact portion 632. In this case, when thebusbar 860 is inserted, thecatch portion 642 may be hardly moved and catch thebusbar 860. Moreover, thecatch portion 642 of thefirst contact 62 may be supported by a part of thesecond member 40 such as an inner wall of the first receivingportion 422 so as to be unmovable. Similarly, thecatch portion 642 of thesecond contact 64 may be supported by a part of thesecond member 40 such as an inner wall of thesecond receiving portion 424 so as to be unmovable. - Referring to
FIGS. 12 and 24 , the twoguide portions first contact 62 open along the fourth orientation (positive Y-direction) and guide the first busbar 862 (seeFIG. 25 ) when thefirst busbar 862 is inserted through thefirst opening 332. Referring toFIGS. 13 and 24 , the twoguide portions second contact 64 open along the fourth orientation and guide the second busbar 864 (seeFIG. 25 ) when thesecond busbar 864 is inserted through thesecond opening 334. According to the present embodiment, since theguide portions FIG. 25 ) can be smoothly inserted. However, the present invention is not limited thereto, but theguide portions - As shown in
FIG. 9 , each of the opposite ends of thebusbar connection portion 330 of the present embodiment in the predetermined direction (Z-direction) has a rectangular shape when thehousing 20 is seen along the third orientation (negative Y-direction). As shown inFIGS. 10 and 12 , a part of thefirst opening 332 extends in the predetermined direction, and a remaining part of thefirst opening 332 extends in the perpendicular direction (Y-direction). Thus, thefirst opening 332 of the present embodiment continuously extends along the predetermined plane (YZ-plane) defined by the predetermined direction and the perpendicular direction. As shown inFIGS. 10 and 13 , a part of thesecond opening 334 extends in the predetermined direction, and a remaining part of thesecond opening 334 extends in the perpendicular direction. Thus, thesecond opening 334 of the present embodiment continuously extends along the predetermined plane. - However, the present invention is not limited thereto. The end of the
busbar connection portion 330 in the predetermined direction (Z-direction) may be formed in various shapes such as a trapezoidal shape and an arc-shape. Each of thefirst opening 332 and thesecond opening 334 may be formed in various shapes in accordance with the shape of the end of thebusbar connection portion 330. For example, each of thefirst opening 332 and thesecond opening 334 may extend in an arc-shape along the predetermined plane (YZ-plane). - Referring to
FIGS. 10, 12 and 13 , in the present embodiment, thefirst opening 332 and thesecond opening 334 extend in a common plane. In addition, thefirst opening 332 and thesecond opening 334 are located at positions same as each other in the perpendicular direction (Y-direction). Referring toFIGS. 1, 10, 12 and 13 , when two of theconnectors 10 adjacent to each other in the predetermined direction (Z-direction) are located at positions same as each other in the perpendicular direction and the attached surfaces 312 (seeFIG. 2 ) of the twoconnectors 10 are located in a common plane, thebusbar 860 can be easily inserted into thefirst opening 332 and thesecond opening 334. - However, the present invention is not limited thereto. As described below with examples, because the
busbar 860 has a simple shape, thebusbar 860 is flexibly adaptable to a positional difference between thefirst opening 332 and thesecond opening 334 facing each other of the twoconnectors 10. Referring toFIG. 17 , when a size of each of thefirst opening 332 and thesecond Opening 334 in the second perpendicular direction (X-direction) is made sufficiently larger than a thickness of thebusbar 860, or a size of thebusbar 860 in the second perpendicular direction (seeFIG. 17 ), thebusbar 860 is particularly flexibly adaptable to the positional difference. - Referring to
FIG. 26 , the twoconnector bodies 12 adjacent to each other in the predetermined direction (Z-direction) may be located at different positions in the perpendicular direction (Y-direction) to some extent. Even in this arrangement, the twoconnector bodies 12 can be connected with each other by thebusbar 860. - Referring to
FIG. 27 , the twoconnector bodies 12 adjacent to each other in the predetermined direction (Z-direction) may be located at different positions in the second perpendicular direction (X-direction). In other words, the attachedsurfaces 312 of the twoconnector bodies 12 may be not in the common plane but in two planes in parallel to each other. Even in this arrangement, the twoconnector bodies 12 can be connected with each other by thebusbar 860. - Referring to
FIGS. 28 and 29 , a distance between the twoconnector bodies 12 adjacent to each other in the predetermined direction (Z-direction) may be changed to some extent. For example, a distance between the twoconnector bodies 12 adjacent to each other in the predetermined direction may be D1, and another distance between the other twoconnector bodies 12 adjacent to each other in the predetermined direction may be not D1 but D2. For example, D1 may be larger than D2. - Moreover, according to the present embodiment, because the
busbar 860 has a simple shape, the arrangement of thefirst opening 332 and thesecond opening 334 in the oneconnector 10 can be variously modified. Referring toFIGS. 12 and 13 , for example, in theconnector body 12, a position of thefirst opening 332 in the perpendicular direction (Y-direction) may be different from another position of thesecond opening 334 in the perpendicular direction to some extent. In theconnector body 12, a position of thefirst opening 332 in the second perpendicular direction (X-direction) may be different from another position of thesecond opening 334 in the second perpendicular direction to some extent. Moreover, thefirst opening 332 and thesecond opening 334 may extend along a plane that is in parallel to the predetermined direction (Z-direction) and oblique to the second perpendicular direction to some extent. - Referring to
FIG. 4 , after the twobusbars 860 are connected to theconnector body 12, thecover 50 is attached to theconnector body 12. As can be seen fromFIGS. 4, 10 and 11 , thecover 50 hides, at least in part, each of thefirst opening 332 and thesecond opening 334 when theconnector 10 is seen along the third orientation (negative Y-direction). The thus-attachedcover 50 prevents thebusbar 860 from coming off. However, the present invention is not limited thereto, but theconnector 10 may comprise thecover 50 as necessary. - Referring to
FIGS. 1 and 30 , two of theconnectors 10 that are not adjacent to each other in the predetermined direction (Z-direction) can be connected by thecable 880. In detail, referring toFIGS. 7 and 30 , thecable 880 is fixed to theconnection portion 670 by thebolt 890 and the nut 72 (seeFIG. 18 ), so that theconnector body 12 is electrically connected with thecable 880. Thus, each of theconnection portions 670 is connectable to the connection member other than thebusbar 860. The connection member in the present embodiment is thecable 880. Referring toFIGS. 1 and 7 , according to the present embodiment, since theconnection portions 670 are provided, a plurality of theconnectors 10 in various arrangements can be connected with one another by using thebusbars 860 and thecables 880. However, the present invention is not limited thereto, but the connection member may be a member other than thecable 880. - Referring to
FIG. 31 , after thebusbar 860 and thecable 880 are connected to theconnector body 12, thecover 50 is formed with acable passage 530 by removing the removable wall 520 (seeFIG. 4 ) and is attached to theconnector body 12. Thecable 880 passes through the thus-formedcable passage 530 to extend outward of theconnector 10. - The aforementioned embodiment can be further variously modified in addition to the already explained modifications.
- Referring to
FIGS. 10 and 11 , the positions of thefirst opening 332 and thefirst protection portion 336 may be exchanged, and the positions of thesecond opening 334 and thesecond protection portion 338 may be exchanged. Referring toFIG. 25 , in this modification, thebusbar 860 is insertable to theconnector body 12 not along the negative Y-direction but along the positive Y-direction. In other words, the third orientation in this modification is not the negative Y-direction but the positive Y-direction. - Referring to
FIG. 32 , aconnector 10A according to a modification comprises aconnector body 12A and the cover 50 (seeFIG. 4 ). Referring toFIGS. 33, 36, 38 and 39 , theconnector body 12A comprises ahousing 20A made of insulator, twocontacts 60A each made of metal, namely afirst contact 62A and asecond contact 64A, and the two nuts 72. Thehousing 20A comprises afirst member 30A and asecond member 40A. - Referring to
FIGS. 32, 33, 38 and 39 together withFIG. 19 , thefirst member 30A of thehousing 20A has an attachedportion 310A which is different from the attachedportion 310 of thefirst member 30 of thehousing 20 and two holdingportions 350A which are different from the holdingportions 350 of thefirst member 30. The attachedportion 310A is formed with twopassages 392A which correspond to the holdingportions 350A, respectively. Each of thepassages 392A passes through the attachedportion 310A in the second perpendicular direction (X-direction). Each of the holdingportions 350A is not formed with theinsertion portion 392. Except for the aforementioned difference, thefirst member 30A has a structure identical to that of the first member 30 (seeFIG. 19 ) of thehousing 20. - Referring to
FIGS. 33 to 35 together withFIG. 20 , thesecond member 40A of thehousing 20A does not have three portions of thesecond member 40 of thehousing 20, namely thepartition portion 440 and the additional holdingportions 450. Except for the aforementioned difference, thesecond member 40A has a structure identical to that of thesecond member 40 of thehousing 20. - Referring to
FIG. 36 together withFIG. 21 , each of thefirst contact 62A and thesecond contact 64A does not have theadditional connection portion 680 which is provided to each of thefirst contact 62 and thesecond contact 64. Except for the aforementioned difference, thefirst contact 62A and thesecond contact 64A have structures identical to those of thefirst contact 62 and thesecond contact 64, respectively. - Referring to
FIG. 33 , thecontact holding portion 420 of thesecond member 40A is inserted into the accommodation portion 380 (seeFIG. 19 ) of thefirst member 30A similar to the previously described embodiment, so that theconnector body 12A is formed. - Referring to
FIGS. 34 to 37 , thehousing 20A of theconnector body 12A has thebusbar connection portion 330 which has a structure identical to that of the previously described embodiment. Therefore, theconnector body 12A is connectable to the first busbar 862 (seeFIG. 25 ) and the second busbar 864 (seeFIG. 25 ) similar to the previously described embodiment. - Referring to
FIGS. 41 and 42 , in the present modification, theconnector body 12A is attached to abattery unit 810A when used. Referring toFIGS. 40 to 42 , thebattery unit 810A comprises a case 820A with thepanel 822 and abattery module 830A. Thebattery module 830A is accommodated inside the case 820A. Thebattery module 830A has abody portion 832A and twoterminals FIGS. 41 and 42 , the attachedportion 310A of theconnector body 12A is attached and fixed to thepanel 822 of the case 820A. The thus-fixed attachedsurface 312 is in contact with thepanel 822. - Referring to
FIGS. 41 and 43 , theterminals passages 392A, respectively, and fixed to the holdingportions 350A of theconnector body 12A, respectively. In detail, referring toFIGS. 41 and 43 together with 38 and 39, each of theterminals connection portion 670 of thecorresponding contact 60A by thebolt 890 and thenut 72, so that theconnector body 12A is electrically connected with thebattery module 830A. - The connector body 12 (see
FIG. 8 ) of the previously described embodiment comprises the two additional connection portions 680 (seeFIG. 8 ). Each of theadditional connection portions 680 is connectable to the terminal 834 or 836 (additional connection member) other than thebusbar 860 and the cable 880 (connection member). In contrast, theconnector body 12A according to the present modification does not comprise theadditional connection portions 680, but theconnection portions 670 work as theadditional connection portions 680. Each of theconnection portions 670 is also connectable to the cable 880 (seeFIG. 30 ) similar to the previously described embodiment. - The
connector body 12A according to the present modification has no projecting portion that projects inside thecase 820 beyond the attachedportion 310A along the sixth orientation (positive X-direction). Therefore, theconnector body 12A can be reduced in size in the second perpendicular direction (X-direction), and thebattery unit 810A can be reduced in size. Moreover, a size of thebody portion 832A of thebattery module 830A in the second perpendicular direction can be made larger while a size of thecase 820 of thebattery unit 810A in the second perpendicular direction is unchanged, so that a battery capacity of thebody portion 832A can be made larger. - Referring to
FIG. 44 , aconnector 10B according to a second embodiment of the present invention is used in the power storage device 80 (seeFIG. 1 ) similar to the connector 10 (seeFIG. 1 ). Theconnector 10B is attachable to the panel 822 (seeFIG. 3 ) and connectable to the twobusbars 860, namely thefirst busbar 862 and thesecond busbar 864. However, the present invention is not limited thereto, but theconnector 10B can be used for connection of various devices. - In the present embodiment, similar to the first embodiment, the Z-direction is the predetermined direction, or the connection direction along which two of the
connectors 10B are connected with each other via thebusbar 860. The negative Z-direction and the positive Z-direction are the first orientation and the second orientation, respectively. However, different from the first embodiment, the X-direction is the perpendicular direction that is the insertion direction and the removal direction of thebusbar 860 into and from theconnector 10B, and the Y-direction is the second perpendicular direction. According to this embodiment, the positive X-direction, the negative X-direction, the positive Y-direction and the negative Y-direction are the third orientation, the fourth orientation, the fifth orientation and the sixth direction, respectively. - Referring to
FIGS. 44, 45 and 55 , theconnector 10B of the present embodiment is formed by combining members similar to those of the connector 10 (seeFIGS. 4, 7 and 8 ) according to the first embodiment and has a structure similar to that of theconnector 10. Hereafter, explanation is mainly made about difference between theconnector 10B and theconnector 10. - Referring to
FIG. 55 , theconnector 10B comprises aconnector body 12B and acover 50B made of insulator. Referring toFIGS. 44 and 45 together withFIG. 6 , theconnector body 12B comprises ahousing 20B made of insulator, twocontacts 60B each made of metal, namely afirst contact 62B and asecond contact 64B, the twonuts 72 and the two additional nuts 74. Thehousing 20B comprises afirst member 30B and asecond member 40B. Thefirst member 30B and thesecond member 40B are combined with each other similar to the first embodiment, so that theconnector body 12B is formed. - As shown in
FIGS. 44 and 46 to 49 , thefirst member 30B of thehousing 20B has the attachedportion 310 and the two holdingportions 350 same as those of the first embodiment while having abusbar connection portion 330B different from that of the first embodiment. The attachedportion 310 is attachable to the panel 822 (seeFIG. 3 ) and extends along the second perpendicular plane (YZ-plane) perpendicular to the perpendicular direction (X-direction). The attachedsurface 312 of the attachedportion 310 is located in the second perpendicular plane. Each of the attachment holes 314 of the attachedportion 310 passes through the attachedportion 310 in the perpendicular direction. Thebusbar connection portion 330B and the holdingportions 350 project from the attachedportion 310 along the fourth orientation (negative X-direction). Thebusbar connection portion 330B is located at the middle of the attachedportion 310 in the second perpendicular direction (Y-direction). The holdingportions 350 are located at opposite sides of thebusbar connection portion 330B in the second perpendicular direction, respectively. - Referring to
FIGS. 44 to 48 , thebusbar connection portion 330B is formed with afirst opening 332B and asecond opening 334B. Thefirst opening 332B and thesecond opening 334B are located at opposite end portions of thebusbar connection portion 330B in the predetermined direction (Z-direction), respectively. Thefirst opening 332B opens outward in the second orientation (positive Z-direction) and opens outward in the fourth orientation (negative X-direction). Thesecond opening 334B opens outward in the first orientation (negative Z-direction) and opens outward in the fourth orientation. - Referring to
FIGS. 46 and 47 , thefirst opening 332B is visible when thehousing 20B is seen along the first orientation (negative Z-direction) in the predetermined direction (Z-direction) and is visible when thehousing 20B is seen along the third orientation (positive X-direction) in the perpendicular direction (X-direction) perpendicular to the predetermined direction. Referring toFIGS. 46 and 48 , thesecond opening 334B is visible when thehousing 20B is seen along the second orientation (positive Z-direction) opposite to the first orientation and is visible when thehousing 20B is seen along the third orientation. - Referring to
FIGS. 44, 45, 47, 48 and 49 , thebusbar connection portion 330B has afirst protection portion 336B and asecond protection portion 338B. Each of thefirst protection portion 336B and thesecond protection portion 338B is a part of the attachedportion 310. In the perpendicular direction (X-direction), thefirst protection portion 336B blocks an end of thefirst opening 332B in the third orientation (positive X-direction). In the perpendicular direction, thesecond protection portion 338B blocks an end of thesecond opening 334B in the third orientation. - As shown in
FIGS. 45, 47 and 49 , thesecond member 40B of thehousing 20B has the two additional holdingportions 450 same as those of the first embodiment and has abase portion 410B different from that of the first embodiment. Thebase portion 410B is located at the middle of thesecond member 40B in the second perpendicular direction (Y-direction). Thebase portion 410B has acontact holding portion 420B and apartition portion 440B. Thepartition portion 440B projects from thecontact holding portion 420B along the third orientation (positive X-direction). Theadditional holding portions 450 are located at opposite sides of thepartition portion 440B in the second perpendicular direction, respectively. - Referring to
FIG. 45 , thecontact holding portion 420B is inserted into the accommodation portion 380 (seeFIG. 19 ) of thefirst member 30B similar to the first embodiment. Referring toFIGS. 46 to 48 , the thus-assembledhousing 20B is formed with afirst receiving portion 422B and asecond receiving portion 424B. - Referring to
FIGS. 44 and 55 , thecover 50B has a shape corresponding to a projecting portion of thefirst member 30B of thehousing 20B, or a portion that projects from the attachedportion 310 along the fourth orientation (negative X-direction). Thecover 50B has a space formed therewithin which has a shape corresponding to the projecting portion. Referring toFIG. 55 , thecover 50B is provided with twobusbar passages 510B and the tworemovable walls 520. Theremovable walls 520 are located at opposite end portions of thecover 50B in the second perpendicular direction (Y-direction), respectively. - Referring to
FIGS. 50 and 51 , in the present embodiment, each of thefirst contact 62B and thesecond contact 64B is a single metal plate with bends. Hereafter, explanation is made about a structure of thefirst contact 62B. - As shown in
FIGS. 50 and 51 , thefirst contact 62B has the sub-portion 660 same as that of the first embodiment while having amain portion 610B and acoupling portion 650B different from those of the first embodiment. Themain portion 610B has a triangular shape when thefirst contact 62B is seen along the third orientation (positive X-direction). Thecoupling portion 650B extends with bends and couples themain portion 610B and the sub-portion 660 to each other so that themain portion 610B and the sub-portion 660 are arranged in the second perpendicular direction (Y-direction). - As shown in
FIG. 51 , themain portion 610B has the heldportion 620, aspring portion 630B and an additional spring portion (spring portion) 640B. Thespring portion 630B and theadditional spring portion 640B extend from opposite ends of the heldportion 620 in the second perpendicular direction (Y-direction), respectively, and extend along the second orientation (positive Z-direction) while approaching each other in the second perpendicular direction. Each of thespring portion 630B and theadditional spring portion 640B is supported by the heldportion 620 as a cantilever to be resiliently deformable. Thespring portion 630B has thecontact portion 632, and theadditional spring portion 640B has thecatch portion 642. Thecontact portion 632 is movable in the second perpendicular direction according to resilient deformation of thespring portion 630B. Thecatch portion 642 is movable in the second perpendicular direction according to resilient deformation of theadditional spring portion 640B. - As shown in
FIGS. 51 and 52 , thespring portion 630B is provided with theguide portion 638, and theadditional spring portion 640B is provided with theguide portion 648. Theguide portion 638 is an edge of a projecting portion which projects from thecontact portion 632 of thespring portion 630B along the fourth orientation (negative X-direction). Theguide portion 648 is an edge of a projecting portion which projects from thecatch portion 642 of theadditional spring portion 640B along the fourth orientation. Referring toFIG. 52 , a distance D between theguide portion 638 and theguide portion 648 in the second perpendicular direction (Y-direction) gradually decreases along the third orientation (positive X-direction). - Referring to
FIG. 50 , theconnection portion 670 is one of opposite sides of the sub-portion 660 in the perpendicular direction (X-direction) and is adjacent to themain portion 610B in the second perpendicular direction (Y-direction). Theadditional connection portion 680 is a remaining one of the opposite sides of the sub-portion 660 in the perpendicular direction and projects from theconnection portion 670 along the third orientation (positive X-direction). Theconnection portion 670 is formed with anattachment hole 672. Theattachment hole 672 passes through theconnection portion 670 in the predetermined direction (Z-direction). Theadditional connection portion 680 is formed with anadditional attachment hole 682. Theadditional attachment hole 682 passes through theadditional connection portion 680 in the predetermined direction. - Referring to
FIGS. 50 and 51 , thesecond contact 64B has a shape and a size identical to those of thefirst contact 62B. However, thesecond contact 64B is arranged to take a posture obtained by rotating a posture of thefirst contact 62B by 180 degrees about the X-axis. The heldportions 620 of thefirst contact 62B and thesecond contact 64B are arranged in the predetermined direction (Z-direction). Thespring portion 630B and theadditional spring portion 640B of thesecond contact 64B extend from opposite ends of the heldportion 620 in the second perpendicular direction (Y-direction), respectively, and extend along the first orientation (negative Z-direction) while approaching each other in the second perpendicular direction. Thesecond contact 64B has a structure identical to that of thefirst contact 62B except the aforementioned difference. - Referring to
FIG. 51 , according to the present embodiment, in each of thefirst contact 62B and thesecond contact 64B, thespring portion 630B and theadditional spring portion 640B have a mirror-symmetric shape with respect to a predetermined plane (XZ-plane). In each of thecontacts 60B, thecontact portion 632 is supported by thespring portion 630B so as to be movable in the second perpendicular direction (Y-direction), and thecatch portion 642 is supported by theadditional spring portion 640B so as to be movable in the second perpendicular direction. - Referring to
FIGS. 44 and 45 , each of thecontacts 60B is held by thehousing 20B. Referring toFIGS. 46 and 47 , thecontact portion 632 and thecatch portion 642 of thefirst contact 62B are located inside the first receivingportion 422B of thehousing 20B. Referring toFIGS. 46 and 48 , thecontact portion 632 and thecatch portion 642 of thesecond contact 64B are located inside thesecond receiving portion 424B of thehousing 20B. - Referring to
FIG. 53 , theconnector body 12B is connectable to thefirst busbar 862 and thesecond busbar 864 same as those of the first embodiment. Referring toFIG. 53 together withFIG. 46 , the end of thefirst busbar 862 is inserted into the first receivingportion 422B through thefirst opening 332B along the third orientation (positive X-direction), and the end of thesecond busbar 864 is inserted into thesecond receiving portion 424B through thesecond opening 334B along the third orientation. Thefirst receiving portion 422B partially receives thefirst busbar 862 when thefirst busbar 862 is inserted through thefirst opening 332B. Thesecond receiving portion 424B partially receives thesecond busbar 864 when thesecond busbar 864 is inserted through thesecond opening 334B. - As shown in
FIGS. 46 and 47 , thecontact portion 632 and thecatch portion 642 of thefirst contact 62B are visible through thefirst opening 332B both when thehousing 20B is seen along the first orientation (negative Z-direction) and when thehousing 20B is seen along the third orientation (positive X-direction). As shown inFIGS. 46 and 48 , thecontact portion 632 and thecatch portion 642 of thesecond contact 64B are visible through thesecond opening 334B both when thehousing 20B is seen along the second orientation (positive Z-direction) and when thehousing 20B is seen along the third orientation. - In detail, referring to
FIG. 54 , thecontact portion 632 and thecatch portion 642 of thefirst contact 62B are located inside afirst connection space 432B which is a part of the first receivingportion 422B. Thefirst opening 332B defines a boundary (see chain dotted line inFIG. 54 ) of thefirst connection space 432B in the second perpendicular plane (YZ-plane) and defines another boundary of thefirst connection space 432B in a perpendicular plane (XY-plane). Thecontact portion 632 and thecatch portion 642 of thesecond contact 64B are located inside asecond connection space 434B which is a part of thesecond receiving portion 424B. The second opening 3346 defines a boundary (see chain dotted line inFIG. 54 ) of thesecond connection space 434B in the second perpendicular plane and defines another boundary of thesecond connection space 434B in the perpendicular plane. - As shown in
FIG. 54 , thecontact portion 632 and thecatch portion 642 of thefirst contact 62B, which are arranged as described above, are brought into contact with thefirst busbar 862 when thefirst busbar 862 is partially received in thefirst connection space 432B of the first receivingportion 422B. Similarly, thecontact portion 632 and thecatch portion 642 of thesecond contact 64B, which are arranged as described above, are brought into contact with thesecond busbar 864 when thesecond busbar 864 is partially received in thesecond connection space 434B of thesecond receiving portion 424B. As a result, theconnector body 12B is electrically connected with each of thefirst busbar 862 and thesecond busbar 864. As can be seen fromFIGS. 1 and 54 , theconnector 10B according to the present embodiment is connectable with theother connector 10B via thebusbar 860 of a simple shape similar to the first embodiment. - Referring to
FIGS. 47 to 49 , thefirst protection portion 336B of thehousing 20B hides thefirst opening 332B when thehousing 20B is seen along the fourth orientation (negative X-direction) opposite to the third orientation (positive X-direction). Thesecond protection portion 338B of thehousing 20B hides thesecond opening 334B when thehousing 20B is seen along the fourth orientation. Similar to the first embodiment, thefirst protection portion 336B stops the movement of the first busbar 862 (seeFIG. 53 ) along the third orientation, and thesecond protection portion 338B stops the movement of the second busbar 864 (seeFIG. 53 ) along the third orientation. - Referring to
FIGS. 47 and 48 , each of thecontact portion 632 and thecatch portion 642 in each of thecontacts 60B is located between theconnection portions 670 of the twocontacts 60B in the second perpendicular direction (Y-direction). Referring toFIG. 46 , thecontact portions 632 of the twocontacts 60B are arranged in the predetermined direction (Z-direction), and thecatch portions 642 of the twocontacts 60B are arranged in the predetermined direction. When the first busbar 862 (seeFIG. 53 ) is inserted, thecontact portion 632 and thecatch portion 642 of thefirst contact 62B equivalently apply spring forces to thefirst busbar 862 which is partially received in the first receivingportion 422B and hold thefirst busbar 862 therebetween. Similarly, when the second busbar 864 (seeFIG. 53 ) is inserted, thecontact portion 632 and thecatch portion 642 of thesecond contact 64B equivalently apply spring forces to thesecond busbar 864 which is partially received in thesecond receiving portion 424B and hold thesecond busbar 864 therebetween. This holding mechanism securely connects each of thecontacts 60B to thebusbar 860. - Referring to
FIGS. 47 and 51 , theguide portions first contact 62B guide the first busbar 862 (seeFIG. 53 ) when thefirst busbar 862 is inserted through thefirst opening 332B. Referring toFIGS. 48 and 51 , theguide portions second contact 64B guide the second busbar 864 (seeFIG. 53 ) when thesecond busbar 864 is inserted through thesecond opening 334B. According to the present embodiment, since theguide portions FIG. 53 ) can be smoothly inserted. - As shown in
FIGS. 46 and 47 , a part of thefirst opening 332B extends in the predetermined direction (Z-direction), and a remaining part of thefirst opening 332B extends in the perpendicular direction (X-direction). Thus, thefirst opening 332B extends along the predetermined plane (XZ-plane) defined by the predetermined direction and the perpendicular direction. As shown inFIGS. 46 and 48 , a part of thesecond opening 334B extends in the predetermined direction, and a remaining part of thesecond opening 334B extends in the perpendicular direction. Thus, thesecond opening 334B extends along the predetermined plane. - Referring to
FIGS. 46 to 48 , thefirst opening 332B and thesecond opening 334B extend in a common plane. In addition, thefirst opening 332B and thesecond opening 334B are located at positions same as each other in the perpendicular direction (X-direction). According to the present embodiment, similar to the first embodiment, thebusbar 860 can be easily inserted into thefirst opening 332B and thesecond opening 334B of two of theconnectors 10B that are adjacent to each other in the predetermined direction (Z-direction). - Referring to
FIG. 55 , after the twobusbars 860 are connected to theconnector body 12B, thecover 50B is attached to theconnector body 12B. As can be seen fromFIGS. 44 and 55 , thecover 50B hides, at least in part, each of thefirst opening 332B and thesecond opening 334B when theconnector 10B is seen along the third orientation (positive X-direction). The thus-attachedcover 50B prevents thebusbar 860 from coming off. - Referring to
FIGS. 44 and 56 , each of theconnection portions 670 is connectable to the cable 880 (connection member) other than thebusbar 860. Referring toFIG. 45 together withFIG. 3 , each of theadditional connection portions 680 is connectable to the terminal 834 or 836 (additional connection member) other than the busbar 860 (seeFIG. 44 ) and the cable 880 (seeFIG. 56 ). - Referring to
FIG. 56 , the twoconnection portions 670 of theconnector body 12B may be connected to the twocables 880, respectively. Referring toFIG. 57 , after thecables 880 are connected to theconnector body 12B, thecover 50B is formed with thecable passages 530 by removing the removable walls 520 (seeFIG. 55 ) and is attached to theconnector body 12B. Thecables 880 pass through the thus-formedcable passages 530 to extend outward of theconnector 10B, respectively. - The present embodiment can be variously modified similar to the first embodiment. For example, referring to
FIG. 45 , theconnector body 12B does not need to comprise the projecting portion which consists of thepartition portion 440B, the additional holdingportions 450 and theadditional connection portions 680 and which projects from the attachedportion 310 along the third orientation (positive X-direction). Referring toFIG. 44 , the arrangement of thefirst opening 332B and thesecond opening 334B can be variously modified. For example, the position of thefirst opening 332B in the perpendicular direction (X-direction) may be different from the position of thesecond opening 334B in the perpendicular direction to some extent. The position of thefirst opening 332B in the second perpendicular direction (Y-direction) may be different from the position of thesecond opening 334B in the second perpendicular direction to some extent. Thefirst opening 332B and thesecond opening 334B may extend along a plane that is in parallel to the predetermined direction (Z-direction) and oblique to the second perpendicular direction to some extent. - The aforementioned embodiments and modifications can be variously combined. Moreover, the aforementioned embodiments can be further variously modified.
- While there has been described what is believed to be the preferred embodiment of the invention, those skilled in the art will recognize that other and further modifications may be made thereto without departing from the spirit of the invention, and it is intended to claim all such embodiments that fall within the true scope of the invention.
Claims (14)
Applications Claiming Priority (2)
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JP2017-000154 | 2017-01-04 | ||
JP2017000154A JP6840542B2 (en) | 2017-01-04 | 2017-01-04 | connector |
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US10014601B1 US10014601B1 (en) | 2018-07-03 |
US20180191090A1 true US20180191090A1 (en) | 2018-07-05 |
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US15/800,271 Active US10014601B1 (en) | 2017-01-04 | 2017-11-01 | Connector |
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KR20220170672A (en) * | 2021-06-23 | 2022-12-30 | 주식회사 엘지에너지솔루션 | Battery module and battery pack including the same |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2011018579A (en) * | 2009-07-09 | 2011-01-27 | Autonetworks Technologies Ltd | Connector |
JP5329330B2 (en) * | 2009-07-22 | 2013-10-30 | 日本航空電子工業株式会社 | Connector assembly |
WO2011056979A2 (en) * | 2009-11-06 | 2011-05-12 | Molex Incorporated | Modular jack with enhanced shielding |
US8585422B2 (en) * | 2011-04-15 | 2013-11-19 | Rockwell Automation Technologies, Inc. | System for connecting motor drives |
JP5041563B1 (en) | 2011-06-27 | 2012-10-03 | 日本航空電子工業株式会社 | Connector, connector device and battery unit |
JP5112544B1 (en) | 2011-07-19 | 2013-01-09 | 日本航空電子工業株式会社 | Connectors and containment rack |
JP2013105633A (en) * | 2011-11-14 | 2013-05-30 | Auto Network Gijutsu Kenkyusho:Kk | Bus bar connector |
US8939798B2 (en) * | 2011-12-12 | 2015-01-27 | Commscope, Inc. Of North Carolina | Local area networks for intelligent patching system controllers and related methods, controllers and communications interfaces |
JP5247896B2 (en) | 2012-01-04 | 2013-07-24 | 日本航空電子工業株式会社 | Power storage device |
JP5308544B2 (en) | 2012-01-04 | 2013-10-09 | 日本航空電子工業株式会社 | Battery unit connector and battery unit including the same |
US8894438B2 (en) * | 2012-07-11 | 2014-11-25 | Tyco Electronics Corporation | Receptacle assembly having angled receptacle guide frames |
US9093804B2 (en) * | 2013-10-04 | 2015-07-28 | Rockwell Automation Technologies, Inc. | Apparatus for connecting a shared DC bus link |
-
2017
- 2017-01-04 JP JP2017000154A patent/JP6840542B2/en active Active
- 2017-11-01 US US15/800,271 patent/US10014601B1/en active Active
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US10014601B1 (en) | 2018-07-03 |
JP2018110074A (en) | 2018-07-12 |
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