US20010053636A1 - Connecting structure for battery terminals - Google Patents
Connecting structure for battery terminals Download PDFInfo
- Publication number
- US20010053636A1 US20010053636A1 US09/880,136 US88013601A US2001053636A1 US 20010053636 A1 US20010053636 A1 US 20010053636A1 US 88013601 A US88013601 A US 88013601A US 2001053636 A1 US2001053636 A1 US 2001053636A1
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- United States
- Prior art keywords
- battery
- terminal
- cover
- fitting
- electrode
- Prior art date
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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
- 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
- H01R11/28—End pieces consisting of a ferrule or sleeve
- H01R11/281—End pieces consisting of a ferrule or sleeve for connections to batteries
- H01R11/282—End pieces consisting of a ferrule or sleeve for connections to batteries comprising means for facilitating engagement or disengagement, e.g. quick release terminal
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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
- 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
- H01R11/28—End pieces consisting of a ferrule or sleeve
- H01R11/281—End pieces consisting of a ferrule or sleeve for connections to batteries
- H01R11/284—End pieces consisting of a ferrule or sleeve for connections to batteries comprising means for preventing corrosion, e.g. covers, enclosures filled with gel
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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
- H01R13/64—Means for preventing incorrect coupling
- H01R13/642—Means for preventing incorrect coupling by position or shape of contact members
Definitions
- the present invention generally relates to a connecting structure for battery terminals and, more particularly, to a connecting structure for surely connecting battery terminals to battery electrodes of corresponding polarity of a battery body mounted on a vehicle without miscontact of the battery terminals with the battery electrode.
- FIGS. 5 and 6 illustrate a related connecting structure for fastening and fixing battery terminals, provided at an end of an electric wire connected to various kinds of electrical equipment, to battery electrodes of a battery body, mounted on a vehicle, by screw members.
- This connecting structure for a battery terminal is disclosed in JP-A-4-220947, and configured so that a positive battery electrode 3 and a negative battery electrode 4 of the vehicle-mounted battery body 1 are quadrangular-prism-like posts 3 b and 4 b respectively erected on base potions 3 a and 4 a on the top surface of the battery body 1 .
- Each of the posts 3 b and 4 b has a flat abutting surface 6 or 7 formed at the tip thereof.
- a screw hole 8 or 9 for securing a battery terminal 11 or 12 (to be described later) by screws is formed.
- These screw holes 8 and 9 are provided so that the central axes thereof are eccentric from the central portions of the abutting surfaces in different directions in such a way as to make the position of the central axis of the positive electrode with respect to the center of the corresponding screw hole differ from that of the central axis of the negative electrode with respect to the center of the other screw hole.
- Each of the battery terminals 11 and 12 includes: a flat plate portion 11 a or 12 a adapted to abut against a corresponding one of abutting surfaces 6 or 7 respectively formed at the tips of the posts 3 b and 4 b ; an abutting wall portion 11 b or 12 b which is erected on an edge portion of a corresponding one of these flat plate portions 11 a and 12 a and abuts against an adjacent side surface of the corresponding post 3 b or 4 b ; and a wire cramping portion 11 a or 12 c to which a corresponding electric wire 16 or 17 is press-attached.
- a screw insertion hole 14 or 15 is provided at an eccentric position corresponding to a corresponding one of the screw holes 8 and 9 respectively formed in the posts 3 b and 4 b to be connected thereto.
- the flat plate portions 11 a and 12 a of the battery terminals 11 and 12 are set on the abutting surfaces 6 and 7 of the posts 3 b and 4 b so that the screw insertion holes 14 and 15 are aligned with the screw holes 8 and 9 of the posts 3 b and 4 b .
- each of the abutting wall portions 11 b and 12 b is caught on the corner portion of a corresponding one of the posts 3 b and 4 b . Consequently, the flat plate portions 11 a and 12 a serve as rotation inhibiting means.
- the position, at which the screw hole 14 is formed, in the battery terminal 11 corresponding to one of the positive and negative battery electrodes is made to differ from the position, at which the screw hole 15 is formed, in the battery terminal 12 corresponding to the other battery electrode. This prevents each of the battery terminals from being misconnected to the battery electrode of the opposite polarity.
- each of the battery electrodes 3 and 4 are exposed to the outside, so that the miscontact of each of the battery terminals 11 and 12 with the battery electrode of the opposite polarity may occur.
- there is a fear that electric backflow caused by the miscontact may break the equipment.
- an object of the invention is to solve the problems, and to provide a connecting structure for reliably connecting each of battery terminals with a corresponding one of battery electrodes of a vehicle body without causing the miscontact of the battery terminals with the battery electrodes.
- a connecting structure for battery terminals which is adapted to fasten and fix each of positive and negative battery terminals, which are respectively connected to end portions of wires, to one of battery electrodes, which is of corresponding polarity, of a battery body by screw members.
- This connecting structure comprises terminal covers, made of an insulating material, for accommodating and holding the battery terminals.
- Each of the terminal covers comprises a terminal accommodation space having an opening of a predetermined shape that permits only the battery terminal of corresponding polarity to be fitted thereinto.
- Each of the battery terminals is formed in such a way as to have a shape that permits fitting thereof into a corresponding one of the terminal accommodation spaces.
- the battery body comprises cover fitting holes of predetermined configurations, each of which permits only the fitting projection pieces of the terminal cover accommodating and holding the battery terminal of corresponding polarity, in the vicinity of each of the battery electrodes so that only the battery terminals are enabled to be placed at a fastening/fixing position on a corresponding one of the battery electrodes, which each of the fitting projection pieces is formed in such a manner as to have a shape enabled to be fitted into a corresponding one of the cover fitting holes.
- each of the positive and negative terminals respectively connected to the end portions of the wires is electrically connected to the corresponding battery electrode by being placed at a fastening/fixing position on the battery electrode of the corresponding polarity and fastened and fixed by a screw member thereto after the battery terminals are accommodated and held in the terminal covers for respectively accommodating and holding the battery terminals.
- the fitting projection piece of the terminal cover cannot be fitted to the cover fitting hole of the battery body owing to the difference in the configuration, such as the opening shape and the position, between the fitting projection piece and the fitting hole.
- each of the battery terminals accommodated and held in the terminal accommodation spaces of the terminal covers cannot be placed at the fastening/fixing position on the battery electrode of the polarity that does not correspond thereto. Moreover, even the contact between the battery terminal, which is surrounded by the terminal cover, and the battery electrode of the polarity, which does not correspond to the battery terminal, cannot be achieved.
- the temporary latch means for temporarily latching each of the terminal covers at a fastening/fixing position on a corresponding one of the battery electrodes comprises the fitting projection pieces of the terminal covers and the cover fitting holes of the battery body.
- the temporary latch means provided between the fitting projection pieces of the terminal cover and the cover fitting holes of the battery body engage with one another, so that the apparatus is put into a state in which the battery terminals are temporarily fixed to the battery electrodes through the terminal electrodes.
- each of the battery electrodes comprises a pedestal portion formed in such a way to be projected from the battery body.
- each of the pedestal portions has a predetermined outward form, which permits only the fitting concave portion of the terminal cover accommodating and holding the battery terminal of the corresponding polarity to be fitted thereonto.
- FIG. 1 is a perspective view illustrating the entire battery body having a connecting structure for a battery terminal according to a first embodiment of the invention.
- FIG. 2 is a plan view illustrating the battery body shown in FIG. 1.
- FIG. 3 is a partially broken perspective view of the internal structure of a primary part of the terminal cover shown in FIG. 1.
- FIG. 4 is a plan view of a battery body having a related connecting structure for a battery terminal.
- FIG. 5 is an enlarged perspective view illustrating the connecting structure for a battery terminal, which is shown in FIG. 4.
- FIG. 1 is a perspective view illustrating the entire battery body having a connecting structure for a battery terminal according to a first embodiment of the invention.
- FIG. 2 is a plan view illustrating the battery body shown in FIG. 1.
- FIG. 3 is a partially broken perspective view of the internal structure of a primary part of the terminal cover shown in FIG. 1.
- the connecting structure for battery terminals is adapted to establish the electrical connection between battery terminals and battery electrodes by fastening and fixing each of the battery terminals 24 , 25 to one of the battery electrodes 29 , 30 by using a nut 35 serving as a screw member.
- the battery terminals 24 , 25 respectively correspond to the positive polarity and the negative polarity and are connected to the end portions of the wires 21 and 22 .
- Each of the battery electrodes 29 , 30 is of corresponding polarity.
- the battery terminals 24 and 25 are accommodated and held in the terminal cover 51 for the positive electrode, and the terminal cover 52 for the negative electrode, respectively.
- the terminal covers 51 and 52 are made of an insulating material.
- the positive battery electrode 29 and the negative battery electrode 30 , and pairs of cover fitting holes 54 a and 54 b ( 55 a , 55 b ) recessed in the vicinity of the battery electrodes 29 , 30 are provided on the top surface of the battery body 27 .
- Each of the battery electrodes 29 , 30 comprises a corresponding one of pedestal portions 29 a , 30 a , on the top surfaces of which the terminal covers 51 , 52 accommodating the battery terminals 24 , 25 are placed, and a corresponding one of male screw portions 29 b , 30 b that serve as electrode posts and that are provided on the pedestals 29 a and 30 a in such a manner as to extend in a direction perpendicular thereto.
- each of the pedestal portions 29 a , 30 a of the battery electrodes 29 , 30 has a predetermined form, which permits only fitting concave portions (not shown) formed in the bottom surface portions of the terminal covers 51 and 52 to be fitted there-onto.
- the pedestal portion 29 a is adapted to have an outward form, whose width size f1 is wider than a width size c1 of the pedestal portion 30 a .
- Each of the fitting concave portions respectively formed in the bottom surface portions of the terminal covers 51 and 52 has a concave shape, whose opening width corresponds to the width size c1 or f1 of a corresponding one of the pedestal portions 29 a and 30 a.
- cover fitting holes 54 a and 54 b are provided on opposite sides of and in the vicinity of each of the pedestal portions 29 a and 30 a .
- These cover fitting portions each have a predetermined configuration (in this embodiment, the predetermined difference in the opening shape and the predetermined interval at which the holes are formed), which enable only the fitting projection pieces 51 c and 51 d ( 52 c and 52 d ) of the terminal cover 51 ( 52 ), which accommodates and holds the battery terminal 24 ( 25 ) of the corresponding polarity) to be fitted thereinto.
- polarity marks P each designating the polarity of each of the battery electrodes 29 , 30 are provided on the top surface of the battery body 27 . Moreover, the polarity marks P designating the polarity of the battery electrodes are provided thereon the battery terminals 24 and 25 and the terminal covers 51 and 52 .
- each of the terminal covers 51 and 52 has a flat terminal accommodation space 51 a or 52 a , a pair of fitting projection pieces 51 c , 51 c ( 52 c , 52 c ) to be fitted to the cover fitting holes 54 a and 54 b ( 55 a , 55 b ) of the battery body 27 , and screw insertion holes 51 e , 52 e into which male screw portions 29 b and 30 b serving as the electrode posts of the battery electrodes 29 and 30 , and accommodates and holds the battery terminals 24 , 25 in such a way as to be able to be secured to the battery electrodes 29 , 30 by screws.
- Each of the terminal accommodation spaces 51 a and 52 a of the terminal covers 51 and 52 which respectively correspond to the positive electrode and the negative electrode, has a predetermined opening shape, which permits only the battery terminal 24 or 25 of the corresponding polarity to be fitted thereinto, and also has a cross section of a predetermined shape which allows only the corresponding battery terminal 24 or 25 to be fitted thereinto.
- the terminal accommodation space 51 a has a nearly rectangular opening that has an opening width e1, which is wider than an opening width b1 of the terminal accommodation space 52 a , and an opening height e2 that is lower than an opening height of the space 52 a.
- the connecting flat plate portion 24 a is shaped like a nearly rectangular cross section that has a plate width d1, which is wider than a plate width a1 of the connecting flat plate portion 25 a of the battery terminal 25 corresponding to the negative electrode, and also has a plate thickness d2, which is thinner than a plate thickness a2 of the portion 25 a .
- These battery terminals 24 , 25 have relatively simple forms, which differ from each other only in the plate width and the plate thickness. Thus, these battery terminals can easily be formed by press-molding. Consequently, the manufacturing cost thereof does not increase.
- a pair of fitting projection pieces 51 c , 51 d ( 52 c , 52 d ) to be fitted into the cover fitting holes 54 a , 54 b ( 55 a , 55 b ) are locking pieces formed by causing an engaging projection to swell out of the tip end of an elastic piece extended from the side walls of the terminal cover 51 ( 52 ), and constitute temporary latch mechanism each adapted to engage with a latching stage portion to thereby temporarily latch the terminal covers 51 and 52 at the fastening/fixing positions on the battery electrodes 29 , 30 .
- a pair of fitting projection pieces 51 c and 51 d disposed in such a manner as to face each other, and a pair of fitting projection pieces 52 c and 52 d disposed in such a way as to face each other are adapted in such a manner as to differ from each other in the distance between the fitting projection pieces of each of the pairs and in the width size of each of the opposed fitting projection pieces 51 c , 51 d ( 52 c , 52 d ) of each of the pairs.
- This aims at increasing the number of combinations of configuration data, such as distances and width sizes, according to the difference in which an occurrence of the misconnection is prevented.
- locking convex portions 51 b and 52 b adapted to be engaged with the engaging concave portions 24 b , 25 b formed in the side edges of the connecting flat plate portions 24 a , 25 a of the battery terminals 24 , 25 thereby to cause the battery terminals 24 and 25 to engage with and lock into the terminal covers 51 and 52 are formed on the inner walls of the terminal accommodation spaces 51 a and 52 a.
- each of the battery terminals 24 , 25 which respectively correspond to the positive electrode and the negative electrode and connected to the end portions of the wires 21 and 22 , is accommodated and held in a corresponding one of the terminal covers 51 , 52 for accommodating and holding the battery terminals, and then disposed at a fastening/fixing positions on the battery electrode of the corresponding polarity and fastened and fixed thereto by the nut 35 , thereby to be electrically connected to the battery electrodes.
- the misinsertion that is, misfitting of the battery terminal 24 ( 25 ) into the terminal cover 52 ( 51 ), which does not correspond to this battery terminal, does not occur.
- the terminal cover 51 accommodating and holding the battery terminal 24 for the positive electrode is misplaced at the fastening/fixing position on the battery electrode 30 of the polarity, which does not correspond to the terminal cover 51 , (that is, the negative polarity)
- the distance between the fitting projection pieces 51 c , 51 d of the terminal cover 51 is wider than the distance between the cover fitting holes 55 a , 55 b , so that the fitting projection pieces 51 c , 51 d cannot be fitted into these cover fitting holes 55 a , 55 b.
- the distance between the fitting projection pieces 52 c , 52 d of the terminal cover 52 is narrower than the distance between the cover fitting holes 54 a , 54 b , so that the fitting projection pieces 52 c , 52 d cannot be fitted into these cover fitting holes 54 a , 54 b.
- the battery terminal 24 ( 25 ) accommodated and held in the terminal accommodation space 51 a ( 52 a ) of the terminal cover 51 ( 52 ) cannot be disposed at the fastening/fixing position on the battery electrode 30 ( 29 ) of the polarity, which does not correspond to the battery terminal 24 ( 25 ). Consequently, even the contact of the battery terminal 24 ( 25 ) surrounded by the terminal cover 51 ( 52 ) with the battery electrode 30 ( 29 ) of the polarity, which does not correspond to the battery terminal 24 ( 25 ), cannot be achieved.
- the fitting projection piece 51 c , 51 d ( 52 c , 52 d ) and the cover fitting holes 54 a , 54 b ( 55 a , 55 b ) constitute temporary latch mechanism for temporarily latching the terminal covers 51 , 52 at the fastening/fixing positions on the battery electrodes 29 , 30 .
- the temporary latch mechanism provided between the fitting projection pieces 51 c , 51 d ( 52 c , 52 d ) of the terminal cover 51 ( 52 ) and the cover fitting holes 54 a , 54 b ( 55 a , 55 b ) of the battery body 27 engage with one another, so that the apparatus is put into a state in which the battery terminals 24 , 25 are temporarily fixed to the battery electrodes 29 , 30 through the terminal electrodes 29 , 30 .
- the pedestal portions 29 a , 30 a are configured in such a way as to have an outward form, which permits only the fitting concave portions formed in the bottom surface portion of the terminal covers 51 , 52 , each of which accommodates and holds the battery terminal 24 or 25 of the corresponding polarity, to be fitted thereonto.
- the angle, which the top surface of each of the pedestal portions 29 a , 30 a forms with the top surface of the battery body 27 , and the shape thereof, and the positions of the projection pieces are modified in various manners.
- the concave shapes of the fitting concave portions of the terminal covers 51 , 52 are changed in such a manner as to be adjusted to such modifications. This enables the determination of the directions, in which the wires 21 , 22 are provided and drawn, according to the conditions for mounting the apparatus on a vehicle (for example, whether a plurality of batteries are mounted thereon, or whether a high-voltage battery (for instance, a 36-volt battery) is mounted thereon)
- the fitting concave portions formed in the bottom surface portions of the terminal covers 51 , 52 are fitted onto the pedestal portions 29 a , 30 a .
- the battery terminals 24 and 25 are restrained from rotating with respect to the pedestal portions 29 a , 30 a through the terminal covers 51 , 52 . This prevents a direction, in which each of the wires 21 , 22 is drawn, from being changed.
- the configurations of the battery terminals, the battery covers, the battery electrodes, the screw members, the terminal accommodation spaces, and the temporary latch mechanism in the connecting structure for battery terminals of the invention are not limited to those of the aforementioned embodiment. Needless to say, various modifications may be made according to the gist of the invention.
- the electrodes may be configured so that female screws are tapped into the pedestal portions 29 a , 30 a , and that the battery terminals 24 , 25 are fastened and fixed thereto by bolts serving as the screw members.
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- Connection Of Batteries Or Terminals (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
Terminal covers (51, 52) have terminal accommodation spaces, each of which has an opening of a predetermined shape that permits only one of battery terminals (24, 25), which is of predetermined polarity, to be fitted thereto. Each of the battery terminals (24, 25) is formed in such a manner as to have a predetermined shape enabling the battery terminal to be fitted into the corresponding terminal accommodation space. The battery body (27) has cover fitting holes (54 a , 54 b (55 a , 55 b)), which permit only fitting projection pieces (51 c , 51 d (52 c , 52 d)) of the terminal cover (51 (52)) accommodating and holding the battery terminal (24 (25)) to be fitted thereinto, in the vicinity of the battery electrode (29 (30)) so that only the battery terminal (24 (25)) is placed at a fastening/fixing position on the battery electrode (29(30)). Each of the fitting projection pieces (51 c , 51 d (52 x , 52 d)) is formed in such away as to have a predetermined shape that permits these pieces can be fitted into the corresponding cover fitting holes (54 a , 54 b (55 a , 55 b)).
Description
- 1. Technical Field of the Invention
- The present invention generally relates to a connecting structure for battery terminals and, more particularly, to a connecting structure for surely connecting battery terminals to battery electrodes of corresponding polarity of a battery body mounted on a vehicle without miscontact of the battery terminals with the battery electrode.
- 2. Related Art
- FIGS. 5 and 6 illustrate a related connecting structure for fastening and fixing battery terminals, provided at an end of an electric wire connected to various kinds of electrical equipment, to battery electrodes of a battery body, mounted on a vehicle, by screw members.
- This connecting structure for a battery terminal is disclosed in JP-A-4-220947, and configured so that a
positive battery electrode 3 and a negative battery electrode 4 of the vehicle-mountedbattery body 1 are quadrangular-prism-like posts base potions battery body 1. - Each of the
posts abutting surface surface portions screw hole battery terminal 11 or 12 (to be described later) by screws is formed. Thesescrew holes - Each of the
battery terminals flat plate portion abutting surfaces posts abutting wall portion flat plate portions corresponding post wire cramping portion electric wire - Further, in each of the
flat plate portions screw insertion hole screw holes posts - In the aforementioned connecting structure for the battery terminals, the
flat plate portions battery terminals abutting surfaces posts screw insertion holes screw holes posts abutting wall portions posts flat plate portions - Therefore, when fastened by
bolts 19 screwed into thescrew holes battery terminals posts - Furthermore, as mentioned previously, the position, at which the
screw hole 14 is formed, in thebattery terminal 11 corresponding to one of the positive and negative battery electrodes is made to differ from the position, at which thescrew hole 15 is formed, in thebattery terminal 12 corresponding to the other battery electrode. This prevents each of the battery terminals from being misconnected to the battery electrode of the opposite polarity. - However, although the aforementioned related connecting structure for the battery terminals can prevent each of the battery terminals from being misconnected to the battery electrode of the different polarity, each of the
battery electrodes 3 and 4 are exposed to the outside, so that the miscontact of each of thebattery terminals - Especially, in recent years, there has been a tendency to enhance the efficiency of a vehicle power supply by increasing the voltage thereof. Thus, it is studied to replace 12-volt batteries and 24-volt batteries, which are currently in wide use, with 36-volt batteries. However, the implementation of a high-voltage battery increases the degree of seriousness of the problems of accidents due to the miscontact and sparks due to an arc.
- Furthermore, recent increase in the power consumption of per vehicle results in increase in the number of batteries mounted on a vehicle. Thus, there is the need for contrivances to prevent occurrences of a misconnection and a miscontact of battery terminals with a plurality of batteries.
- Accordingly, an object of the invention is to solve the problems, and to provide a connecting structure for reliably connecting each of battery terminals with a corresponding one of battery electrodes of a vehicle body without causing the miscontact of the battery terminals with the battery electrodes.
- To achieve the foregoing object, according to the invention, there is provided a connecting structure for battery terminals, which is adapted to fasten and fix each of positive and negative battery terminals, which are respectively connected to end portions of wires, to one of battery electrodes, which is of corresponding polarity, of a battery body by screw members. This connecting structure comprises terminal covers, made of an insulating material, for accommodating and holding the battery terminals. Each of the terminal covers comprises a terminal accommodation space having an opening of a predetermined shape that permits only the battery terminal of corresponding polarity to be fitted thereinto. Each of the battery terminals is formed in such a way as to have a shape that permits fitting thereof into a corresponding one of the terminal accommodation spaces. The battery body comprises cover fitting holes of predetermined configurations, each of which permits only the fitting projection pieces of the terminal cover accommodating and holding the battery terminal of corresponding polarity, in the vicinity of each of the battery electrodes so that only the battery terminals are enabled to be placed at a fastening/fixing position on a corresponding one of the battery electrodes, which each of the fitting projection pieces is formed in such a manner as to have a shape enabled to be fitted into a corresponding one of the cover fitting holes.
- With the aforementioned configuration, each of the positive and negative terminals respectively connected to the end portions of the wires is electrically connected to the corresponding battery electrode by being placed at a fastening/fixing position on the battery electrode of the corresponding polarity and fastened and fixed by a screw member thereto after the battery terminals are accommodated and held in the terminal covers for respectively accommodating and holding the battery terminals.
- Even when the battery terminal is misfitted into the terminal accommodation space of the terminal cover that does not correspond to this battery terminal, this battery terminal cannot be fitted thereinto owing to the difference in the shape therebetween.
- Further, even when the terminal cover having accommodated and held the battery terminal is misplaced at the fastening/fixing position on the battery electrode of the polarity that does not correspond to the terminal cover, the fitting projection piece of the terminal cover cannot be fitted to the cover fitting hole of the battery body owing to the difference in the configuration, such as the opening shape and the position, between the fitting projection piece and the fitting hole.
- Thus, each of the battery terminals accommodated and held in the terminal accommodation spaces of the terminal covers cannot be placed at the fastening/fixing position on the battery electrode of the polarity that does not correspond thereto. Moreover, even the contact between the battery terminal, which is surrounded by the terminal cover, and the battery electrode of the polarity, which does not correspond to the battery terminal, cannot be achieved.
- Therefore, the misconnection between the contact between the battery terminal and the battery electrode, which do not correspond to each other, is known without the contact and electrical conduction therebetween. Therefore, the misconnection therebetween can be reliably prevented.
- Further, because the battery terminals are accommodated and held in the terminal accommodation spaces of the terminal covers, arc caused at a moment, at which the battery terminals are in contact with the battery electrodes occurs in the accommodation spaces. Thus, sparks due to the arc do not go out of the terminal covers.
- Incidentally, preferably, the temporary latch means for temporarily latching each of the terminal covers at a fastening/fixing position on a corresponding one of the battery electrodes comprises the fitting projection pieces of the terminal covers and the cover fitting holes of the battery body.
- Thus, when the terminal covers accommodating and holding the battery terminals are properly set on the battery electrodes, the temporary latch means provided between the fitting projection pieces of the terminal cover and the cover fitting holes of the battery body engage with one another, so that the apparatus is put into a state in which the battery terminals are temporarily fixed to the battery electrodes through the terminal electrodes.
- Therefore, one hand of a worker can be prevented from being used for supporting the battery terminals during an operation of fastening the battery terminals by the nuts. Consequently, the worker can easily perform the screwing operation by freely using both hands.
- Furthermore, preferably, each of the battery electrodes comprises a pedestal portion formed in such a way to be projected from the battery body. Moreover, each of the pedestal portions has a predetermined outward form, which permits only the fitting concave portion of the terminal cover accommodating and holding the battery terminal of the corresponding polarity to be fitted thereonto.
- Thus, even when each of the terminal covers respectively accommodating and holding the corresponding battery terminals is misplaced at the fastening/fixing positions on one of the battery electrodes, which is of the polarity that does not correspond thereto, the fitting concave portion of this terminal cover cannot be fitted thereonto because of the difference in shape between the corresponding battery electrode and the corresponding pedestal.
- That is, in addition to the prevention of the misconnection according to the difference in the distance between the fitting projection pieces of the terminal cover and the cover fitting holes of the battery body, or in the width size of the pieces, the prevention of the misconnection according to the difference in the shape between the pedestal portions of the battery electrodes and the fitting concave portions of the terminal covers can be achieved.
- Thus, even when a plurality of batteries are provided in the apparatus, for example, in the case of connecting a plurality of batteries, the misconnection between the battery terminals and the battery electrodes is prevented by suitably changing the shapes, sizes and combinations of such portions to thereby know an occurrence of the misconnection therebetween without the contact and electrical conduction between the battery terminals and the battery electrodes. Consequently, the misconnection therebetween is reliably prevented.
- FIG. 1 is a perspective view illustrating the entire battery body having a connecting structure for a battery terminal according to a first embodiment of the invention.
- FIG. 2 is a plan view illustrating the battery body shown in FIG. 1.
- FIG. 3 is a partially broken perspective view of the internal structure of a primary part of the terminal cover shown in FIG. 1.
- FIG. 4 is a plan view of a battery body having a related connecting structure for a battery terminal.
- FIG. 5 is an enlarged perspective view illustrating the connecting structure for a battery terminal, which is shown in FIG. 4.
- Hereinafter, a connecting structure for battery terminals according to an embodiment of the invention is described in detail with reference to the accompanying drawings.
- FIG. 1 is a perspective view illustrating the entire battery body having a connecting structure for a battery terminal according to a first embodiment of the invention. FIG. 2 is a plan view illustrating the battery body shown in FIG. 1. FIG. 3 is a partially broken perspective view of the internal structure of a primary part of the terminal cover shown in FIG. 1.
- As shown in FIG. 1, the connecting structure for battery terminals is adapted to establish the electrical connection between battery terminals and battery electrodes by fastening and fixing each of the
battery terminals battery electrodes nut 35 serving as a screw member. Thebattery terminals wires battery electrodes battery terminals terminal cover 51 for the positive electrode, and theterminal cover 52 for the negative electrode, respectively. The terminal covers 51 and 52 are made of an insulating material. - As illustrated in FIGS. 1 and 2, the
positive battery electrode 29 and thenegative battery electrode 30, and pairs of coverfitting holes battery electrodes battery body 27. - Each of the
battery electrodes pedestal portions battery terminals male screw portions pedestals - Further, in this embodiment, each of the
pedestal portions battery electrodes - That is, the
pedestal portion 29 a is adapted to have an outward form, whose width size f1 is wider than a width size c1 of thepedestal portion 30 a. Each of the fitting concave portions respectively formed in the bottom surface portions of the terminal covers 51 and 52 has a concave shape, whose opening width corresponds to the width size c1 or f1 of a corresponding one of thepedestal portions - Further, a pair of cover
fitting holes pedestal portions fitting projection pieces - Further, in the case of this embodiment, polarity marks P each designating the polarity of each of the
battery electrodes battery body 27. Moreover, the polarity marks P designating the polarity of the battery electrodes are provided thereon thebattery terminals - As illustrated in FIGS. 1 and 3, each of the terminal covers51 and 52 has a flat
terminal accommodation space fitting projection pieces battery body 27, and screw insertion holes 51 e, 52 e into whichmale screw portions battery electrodes battery terminals battery electrodes - Each of the
terminal accommodation spaces battery terminal battery terminal - That is, the
terminal accommodation space 51 a has a nearly rectangular opening that has an opening width e1, which is wider than an opening width b1 of theterminal accommodation space 52 a, and an opening height e2 that is lower than an opening height of thespace 52 a. - Further, the connecting
flat plate portion 24 a is shaped like a nearly rectangular cross section that has a plate width d1, which is wider than a plate width a1 of the connectingflat plate portion 25 a of thebattery terminal 25 corresponding to the negative electrode, and also has a plate thickness d2, which is thinner than a plate thickness a2 of theportion 25 a. Thesebattery terminals - Furthermore, a pair of
fitting projection pieces battery electrodes - Furthermore, as illustrated in this figure, a pair of
fitting projection pieces fitting projection pieces fitting projection pieces - Further, locking
convex portions concave portions flat plate portions battery terminals battery terminals terminal accommodation spaces - Thus, according to the connecting structure for the battery terminals of this embodiment, each of the
battery terminals wires nut 35, thereby to be electrically connected to the battery electrodes. - Even when, for example, the
battery terminal 24 for the positive electrode is misfitted into theterminal accommodation space 52 a of theterminal cover 52 corresponding to the polarity, which does not correspond to this battery terminal, (that is, to the negative electrode) at that time, thisbattery terminal 24 interferes with the opening edge of theterminal accommodation space 52 a because the plate width d1 of the connectingflat plate portion 24 a is wider than the opening width b1 of theterminal accommodation space 52 a. Consequently, thisbattery terminal 24 cannot be fitted into thisterminal accommodation space 52 a. - Further, even when the
battery terminal 25 for the negative electrode is misfitted into theterminal accommodation space 51 a corresponding to the polarity, which does not correspond to this battery terminal 25 (that is, the positive electrode), thisbattery terminal 25 interferes with the opening edge of theterminal accommodation space 51 a because the plate thickness a d2 of the connectingflat plate portion 25 a is thicker than the opening height b1 of theterminal accommodation space 51 a. Consequently, thisbattery terminal 25 cannot be fitted into this terminal accommodation space 32 a. - Thus, the misinsertion, that is, misfitting of the battery terminal24 (25) into the terminal cover 52 (51), which does not correspond to this battery terminal, does not occur.
- Even when, for example, the
terminal cover 51 accommodating and holding thebattery terminal 24 for the positive electrode is misplaced at the fastening/fixing position on thebattery electrode 30 of the polarity, which does not correspond to theterminal cover 51, (that is, the negative polarity), the distance between thefitting projection pieces terminal cover 51 is wider than the distance between the cover fitting holes 55 a, 55 b, so that thefitting projection pieces fitting holes - Further, even when the
terminal cover 52 accommodating and holding thebattery terminal 24 for the negative electrode is misplaced at the fastening/fixing position on thebattery electrode 29 of the polarity, which does not correspond to thebattery terminal 25, (that is, the positive polarity), the distance between thefitting projection pieces terminal cover 52 is narrower than the distance between the cover fitting holes 54 a, 54 b, so that thefitting projection pieces fitting holes - Thus, the battery terminal24 (25) accommodated and held in the
terminal accommodation space 51 a (52 a) of the terminal cover 51 (52) cannot be disposed at the fastening/fixing position on the battery electrode 30 (29) of the polarity, which does not correspond to the battery terminal 24 (25). Consequently, even the contact of the battery terminal 24 (25) surrounded by the terminal cover 51 (52) with the battery electrode 30 (29) of the polarity, which does not correspond to the battery terminal 24 (25), cannot be achieved. - Thus, the misconnection between the contact between the battery terminal24 (25) and the battery electrode 30 (29), which do not correspond to each other, is known without the contact and electrical conduction therebetween. Therefore, the misconnection therebetween can be reliably prevented.
- Consequently, according to the connecting structure for battery terminals of this embodiment, there is no fear that electric backflow caused by the miscontact may break the equipment.
- Further, because the
battery terminals terminal accommodation spaces battery terminals battery electrodes accommodation spaces - Therefore, according to the connecting structure for battery terminals of this embodiment, sparks generated owing to the arc at the time of connecting the battery terminal to the battery electrode can be reliably prevented from falling down the hands of the worker. Consequently, the reliability and safety of the structure can be enhanced.
- Furthermore, in the case of the terminal covers51, 52 of this embodiment, the
fitting projection piece battery electrodes - Thus, when the terminal covers51, 52 accommodating and holding the
battery terminals battery electrodes fitting projection pieces battery body 27 engage with one another, so that the apparatus is put into a state in which thebattery terminals battery electrodes terminal electrodes - Therefore, one hand of a worker can be prevented from being used for supporting the
battery terminals - Further, the
pedestal portions battery terminal corresponding battery terminals battery electrodes terminal cover corresponding battery electrode pedestal - That is, in addition to the prevention of the misconnection according to the difference in the distance between the
fitting projection pieces terminal cover battery body 27, or in the width size of the pieces, the prevention of the misconnection according to the difference in the shape between thepedestal portions battery electrodes - Thus, even when a plurality of batteries are provided in the apparatus, for example, in the case of connecting a plurality of batteries, the misconnection between the battery terminals and the battery electrodes is prevented by suitably changing the shapes, sizes and combinations of such portions to thereby know an occurrence of the misconnection therebetween without the contact and electrical conduction between the battery terminals and the battery electrodes. Consequently, the misconnection therebetween is reliably prevented.
- Furthermore, the angle, which the top surface of each of the
pedestal portions battery body 27, and the shape thereof, and the positions of the projection pieces are modified in various manners. Moreover, the concave shapes of the fitting concave portions of the terminal covers 51, 52 are changed in such a manner as to be adjusted to such modifications. This enables the determination of the directions, in which thewires - Furthermore, the fitting concave portions formed in the bottom surface portions of the terminal covers51, 52 are fitted onto the
pedestal portions battery terminals battery electrodes battery terminals pedestal portions wires - Incidentally, the configurations of the battery terminals, the battery covers, the battery electrodes, the screw members, the terminal accommodation spaces, and the temporary latch mechanism in the connecting structure for battery terminals of the invention are not limited to those of the aforementioned embodiment. Needless to say, various modifications may be made according to the gist of the invention.
- For example, although the
battery terminals battery electrodes pedestal portions battery terminals
Claims (6)
1. A connecting structure for battery terminals comprising:
a battery body including first and second electrode;
a first battery terminal for electrical connection to the first electrode connected to a wire;
a second battery terminal for electrical connection to the second electrode connected to a wire;
a first insulative terminal cover having a first fitting projection piece and a first terminal accommodation space for accommodating and holding the first battery terminal therein, the first battery terminal having a shape which permits the first battery terminal being inserted into the first terminal accommodation space;
a second insulative terminal cover having a second fitting projection piece and a second terminal accommodation space for accommodating and holding the second battery terminal therein, the second battery terminal having a shape which permits the second battery terminal being inserted into the second terminal accommodation space, wherein the first battery terminal is not insertable to the second accommodation space, and the second battery terminal is not insertable to the first accommodation space;
a first cover fitting hole for fitting the first fitting projection piece therein provided at a portion of the battery body adjacent to the first electrode; and
a second cover fitting hole for fitting the second projection piece therein provided at a portion of the battery body adjacent to the second electrode,
wherein the first and second fitting projection pieces are formed in different shapes so that the first projection piece can not be fitted to the second cover fitting hole and the second projection piece can not be fitted to the first fitting hole.
2. The connecting structure for battery terminals according to , wherein each of the first fitting projection piece and the first cover fitting hole, and the second fitting projection piece and the second cover fitting hole are constructed so as to temporary latching each of first and second terminal covers at a fixing position on each first and second electrodes.
claim 1
3. The connecting structure for battery terminals according to , wherein the battery body includes a first projected pedestal on which the first electrode is provided and a second projected pedestal on which the second electrode is provided, the first and second projected pedestals have different shapes so that the first battery cover can not be fitted to the second projected pedestal and the second battery cover can not be fitted to the first projected pedestal.
claim 1
4. The connecting structure for battery terminals according to , wherein one of the first and second electrodes is positive electrode and the other of the first and second electrodes is negative electrode.
claim 1
5. The connecting structure for battery terminals according to , wherein the first fitting projection piece is formed a pair of first projections and the second fitting projection piece is formed of a pair of second projections, a distance between the first projections is narrower than a distance between the second projections.
claim 1
6. The connecting structure for battery terminals according to , wherein a width of the first fitting projection piece is smaller than a width of the second fitting projection piece.
claim 1
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2000-178572 | 2000-06-14 | ||
JP2000178572A JP2001357835A (en) | 2000-06-14 | 2000-06-14 | Connection structure of terminal for battery |
JPP.2000-178572 | 2000-06-14 |
Publications (2)
Publication Number | Publication Date |
---|---|
US20010053636A1 true US20010053636A1 (en) | 2001-12-20 |
US6428363B2 US6428363B2 (en) | 2002-08-06 |
Family
ID=18679981
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/880,136 Expired - Fee Related US6428363B2 (en) | 2000-06-14 | 2001-06-14 | Connecting structure for battery terminals |
Country Status (3)
Country | Link |
---|---|
US (1) | US6428363B2 (en) |
JP (1) | JP2001357835A (en) |
DE (1) | DE10128310C2 (en) |
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US20060263683A1 (en) * | 2005-05-09 | 2006-11-23 | Junill Yoon | Three-dimensional electrode terminal for pouch-typed battery |
US20070149066A1 (en) * | 2005-12-28 | 2007-06-28 | Hon Hai Precision Industry Co., Ltd. | Wire holder |
US7306480B2 (en) * | 2006-01-03 | 2007-12-11 | Hong Fu Jin Precision Industry (Shenzhen) Co., Ltd. | Wire holder for electronic device |
US20090305134A1 (en) * | 2006-07-18 | 2009-12-10 | Lg Chem, Ltd. | Electrode Assembly Having Stable Lead-Tap Joint and Electrochemical Cell Containing Them |
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- 2001-06-12 DE DE10128310A patent/DE10128310C2/en not_active Expired - Fee Related
- 2001-06-14 US US09/880,136 patent/US6428363B2/en not_active Expired - Fee Related
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Also Published As
Publication number | Publication date |
---|---|
DE10128310A1 (en) | 2002-01-03 |
JP2001357835A (en) | 2001-12-26 |
DE10128310C2 (en) | 2003-10-09 |
US6428363B2 (en) | 2002-08-06 |
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