JP2011210597A - Battery terminal - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a structure of a battery terminal which can prevent fracture even when a heavy object is mounted on a flat plate part.SOLUTION: The battery terminal 11 includes an arc-shaped fastening part 21, a pair of receiving parts 31, 31, the flat plate part 41, and an extended part 51. A battery post can be inserted and mounted on an inner side of the arc-shaped fastening part 21. The pair of receiving parts 31, 31 extend outward from both end parts of the arc of the fastening part 21. The flat plate part 41 is formed integrally so as to be connected to one end part of the fastening part 21 in a direction parallel to an insertion direction of the battery post. The flat plate part 41 includes a mounting hole 42 for electrically connecting an electric wire or the like. The extended part 51 is integrally formed so as to be connected to other end part of the fastening part 21 in the direction parallel to the insertion direction of the battery post, and is mechanically fixed on the flat plate part 41.

Description

  The present invention relates to a configuration of a battery terminal for connecting an electric wire or the like to a battery.

  Patent document 1 discloses this kind of battery terminal. The battery terminal of Patent Document 1 includes an arc-shaped fastening portion that is externally fitted to a battery post, a pair of extending portions that extend radially outward from both ends of the arc of the fastening portion, and the pair of extending portions. Tightening means for reducing the diameter of the tightening portion by bringing the bolt into close proximity with a bolt and a nut. In addition, a lower box-shaped holding part is coupled to the lower edge of the rear end of the tightening part, and a mounting bracket fixed to the terminal part of the electric wire is fixed to the stud bolt attached to the holding part by a nut. It has become so.

JP 2001-196046 A

  When the battery terminal as in Patent Document 1 is used for a vehicle battery, for example, it may be necessary to attach a member having a certain weight, such as a housing of the apparatus, to the holding portion. However, in the configuration of Patent Document 1 described above, when such a heavy object is attached to the holding part, a load concentration is likely to occur at the connection part (boundary part) between the arc-shaped fastening part and the flat plate-like holding part. It has become. Therefore, when a large load repeatedly acts on the boundary portion due to vehicle vibration or the like, there is a possibility that breakage may occur in the portion.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a configuration in which a battery terminal is not easily broken even when a heavy object is attached to a flat plate portion.

Means and effects for solving the problems

  The problems to be solved by the present invention are as described above. Next, means for solving the problems and the effects thereof will be described.

  According to the viewpoint of this invention, the battery terminal of the following structures is provided. That is, the battery terminal includes an arc-shaped tightening portion, a pair of receiving portions, a flat plate portion, and an auxiliary portion. A battery post can be inserted and attached to the inside of the tightening portion. The pair of receiving portions extend outward from both end portions of the arc of the tightening portion. The flat plate portion is integrally formed at the fastening portion so as to be connected to one end portion in a direction parallel to the insertion direction of the battery post. Further, the flat plate portion is provided with a connection portion capable of electrically connecting at least one of the electric wire and other components. The auxiliary portion is integrally formed at the fastening portion so as to be connected to the other end portion in a direction parallel to the insertion direction of the battery post, and is mechanically fixed to the flat plate portion. .

  Thereby, the connection part between a flat plate part and a clamp | tightening part can be mechanically reinforced with an auxiliary | assistant part. Therefore, even if, for example, vibration is applied in a state where an electric wire or other member is connected to the connecting portion of the flat plate portion, the load applied to the connecting portion between the flat plate portion and the tightening portion is suppressed, and the connecting portion is broken. Can be prevented.

  In the battery terminal, it is preferable that the auxiliary portion has a bent portion disposed in the vicinity of a connection portion between the flat plate portion and the tightening portion.

  Thereby, the bending part of an auxiliary | assistant part can be located in the vicinity of the connection location of a flat plate part and the said clamping part. Therefore, the load applied to the base portion of the flat plate portion can be satisfactorily suppressed.

  In the battery terminal, the auxiliary portion includes a first auxiliary portion extending along the tightening portion in the vicinity of the outer side of the tightening portion, and a second auxiliary portion extending along the flat plate portion. It is preferable.

  Thereby, the auxiliary | assistant part can effectively reinforce the wide range including the connection part of a clamping part and a flat plate part.

  In the battery terminal, it is preferable that the auxiliary portion is mechanically fixed to the flat plate portion by a sandwiching portion formed in at least one of the auxiliary portion and the flat plate portion.

  Thereby, an auxiliary | assistant part can be mechanically fixed with respect to a flat plate part with a simple and low-cost structure.

The perspective view which shows the whole structure of the battery terminal which concerns on 1st Embodiment of this invention. The perspective view of the battery terminal of a comparative example. The perspective view of the battery terminal of 2nd Embodiment.

  Next, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a perspective view showing the overall configuration of the battery terminal 11 according to the first embodiment of the present invention. FIG. 2 is a perspective view showing a battery terminal 100 of a comparative example.

  The battery terminal 11 shown in FIG. 1 is configured by bending a plate member made of an appropriate conductive metal material. The battery terminal 11 has a configuration in which a tightening portion 21, a pair of receiving portions 31, 31, a flat plate portion 41, and an extension portion (auxiliary portion) 51 are integrally formed.

  The fastening part 21 is configured in a shape obtained by curving a flat plate in an arc shape. A battery post (not shown) can be inserted inside the tightening portion 21. The battery post is generally formed in a conical shape or a cylindrical shape, and is provided on the upper surface of a battery (not shown).

  The receiving portions 31, 31 are formed so as to be integrally connected to the tightening portion 21 at locations corresponding to both ends of the arc that is the outline of the tightening portion 21. The pair of receiving portions 31, 31 are arranged substantially parallel to each other so as to sandwich the open side of the arc-shaped fastening portion 21, and a predetermined gap is formed therebetween. Each receiving part 31 is formed in a rectangular shape so as to extend outward from a connection portion with the fastening part 21, and a through-hole for inserting a fastening bolt (fastening tool) (not shown) into the center part thereof. The insertion hole 32 is formed. The pair of receiving portions 31 and 31 have the same shape, and the insertion holes 32 and 32 are arranged at positions corresponding to each other.

  With this configuration, when the fastening bolts are inserted into the insertion holes 32 of the pair of receiving portions 31 and 31 and rotated, the receiving portions 31 and 31 receive the tightening force of the tightening bolts and move toward each other. . As a result, the tightening portion 21 is deformed in the diameter reducing direction to tighten the inner battery post, so that the battery terminal 11 can be fixed to the battery post.

  The flat plate portion 41 is integrally formed so as to be connected to the tightening portion 21. The position where the flat plate portion 41 is connected to the tightening portion 21 is one end side in a direction parallel to the direction in which the battery post is inserted into the tightening portion 21 (hereinafter referred to as “insertion / removal direction”). It is a central portion of an arcuate contour formed by the tightening portion 21.

  Further, at the base portion 48 of the flat plate portion 41 (the portion where the flat plate portion 41 and the fastening portion 21 are connected), the plate member constituting the battery terminal 11 is at a large angle (specifically, an angle of approximately 90 °). Bend) The edges on both sides of the root portion 48 are slightly bent to form a pair of raised portions 49, 49, whereby the rigidity of the root portion 48 is improved.

  The flat plate portion 41 includes a first flat plate portion 43 that extends a predetermined distance in a direction away from the fastening portion 21 and a second flat plate portion 44 that changes its direction by 90 ° and further extends a predetermined distance. Therefore, when viewed in the insertion / removal direction, the shape of the flat plate portion 41 is substantially L-shaped. A penetrating attachment hole (connection portion) 42 is formed at the tip of the second flat plate portion 44. Electric wires and other parts (not shown) can be attached to the attachment holes 42 via appropriate attachment members such as attachment bolts.

  The first flat plate portion 43 has an elongated rectangular offset portion 45. The offset portion 45 is formed by pressing so as to push out (offset) a part of the original plate member to one side in the thickness direction, thereby increasing the rigidity of the first flat plate portion 43 (flat plate portion 41). It has been.

  The magnitude (height) of the offset amount in the offset portion 45 is configured to be substantially the same as or slightly larger than the thickness of the plate member constituting the battery terminal 11. Further, a notch 46 is formed at the edge of the first flat plate portion 43 at a position corresponding to the end of the offset portion 45.

  The extension portion 51 is integrally formed so as to be connected to the tightening portion 21. The position where the extension portion 51 is connected to the tightening portion 21 is the other end side of the tightening portion 21 in the insertion / removal direction (that is, the side opposite to the position where the flat plate portion 41 is connected to the tightening portion 21). Thus, the center portion of the arc-shaped contour formed by the tightening portion 21 is formed.

  The extension 51 has a configuration in which a first folded portion 53, a first extended portion 54, a bent portion 55, a second extended portion 56, and a second folded portion 57 are integrally formed. This will be specifically described below.

  The extension 51 forms a first extension part (first auxiliary part) 54 extending substantially parallel to the insertion / removal direction after being bent by approximately 180 ° at the base part to form the first folded part 53. The first extension portion 54 is disposed so as to pass through the vicinity of the outside of the tightening portion 21 in a direction along the tightening portion 21 (the insertion / removal direction), and a bent portion 55 that bends substantially vertically is formed at the tip thereof. Has been placed. The bent portion 55 is disposed in the vicinity of the root portion 48 of the flat plate portion 41.

  The extension part 51 has a second extension part (second auxiliary part) 56 connected to the bending part 55. The second extending portion 56 is formed to extend in a direction parallel to the first flat plate portion 43 of the flat plate portion 41 (while contacting the surface of the offset portion 45). The distal end of the second extension portion 56 is bent by 180 ° at the cutout portion 46 to form a second folded portion (pinching portion) 57, and then folded back to the opposite side of the offset portion 45.

  Therefore, the extension portion 51 extends in an L shape so as to follow the tightening portion 21 and the flat plate portion 41, and then sandwiches a portion of the flat plate portion 41 (offset portion 45) in the thickness direction at the tip thereof, thereby The structure is mechanically fixed to the portion 41.

  Further, the tip of the second folded portion 57 is disposed on the back side (the concave portion) of the flat plate portion 41 where the offset portion 45 is formed in a convex shape. Therefore, the extension portion 51 can be fixed to the flat plate portion 41 with a compact configuration.

  Hereinafter, the effect produced by the configuration of the present embodiment will be described with reference to a comparative example shown in FIG. The battery terminal 100 shown in the comparative example of FIG. 2 corresponds to a configuration in which the extension 51 and the notch 46 are omitted from the configuration of the present embodiment (FIG. 1). In addition, in a comparative example, the same code | symbol may be attached | subjected to drawing to the member same or similar to this embodiment, and description may be abbreviate | omitted.

  In the configuration of this comparative example (FIG. 2), when an electric wire or other component is attached to the attachment hole 42, the weight of the electric wire and the component is supported by the flat plate portion 41. However, the load due to the electric wires and components is easily concentrated on the root portion 48 of the flat plate portion 41, and the battery terminal 100 is broken at the root portion 48 when the load repeatedly acts on the root portion 48 due to vibration or the like. There is a risk that.

  On the other hand, in the battery terminal 11 (FIG. 1) of the present embodiment, when an electric wire or other component is attached to the attachment hole 42, the weight of the electric wire and the component is supported not only by the flat plate portion 41 but also by the extension portion 51. become. This load distribution prevents the load from concentrating on the base portion 48 of the flat plate portion 41 (the connecting portion between the flat plate portion 41 and the tightening portion 21). Is less likely to occur, and the reliability of the battery terminal 11 can be improved.

  As described above, the battery terminal 11 of the present embodiment includes the arc-shaped tightening portion 21, the pair of receiving portions 31, 31, the flat plate portion 41, and the extension portion 51. A battery post can be inserted and attached inside the tightening portion 21. The pair of receiving portions 31, 31 extend outward from both end portions of the arc of the tightening portion 21. The flat plate portion 41 is integrally formed in the fastening portion 21 so as to be connected to one end portion in a direction parallel to the insertion direction of the battery post. The flat plate portion 41 is provided with a mounting hole 42 that can electrically connect at least one of an electric wire and other components. The extension portion 51 is integrally formed in the fastening portion 21 so as to be connected to the other end portion in a direction parallel to the insertion direction of the battery post. Further, the extension portion 51 is mechanically fixed to the flat plate portion 41.

  Thereby, the connection portion (base portion 48) between the flat plate portion 41 and the tightening portion 21 can be mechanically reinforced by the extension portion 51. Therefore, even if, for example, vibration is applied in a state where an electric wire or other member is connected to the mounting hole 42 of the flat plate portion 41, the load applied to the root portion 48 can be suppressed, and the root portion 48 can be prevented from being broken. .

  Further, in the battery terminal 11 of the present embodiment, the extension portion 51 has a bent portion 55 disposed in the vicinity of a connection portion (base portion 48) between the flat plate portion 41 and the tightening portion 21.

  Thereby, the bent part 55 of the extension part 51 can be positioned in the vicinity of the root part 48. Therefore, the load applied to the root portion 48 of the flat plate portion 41 can be satisfactorily suppressed.

  Further, in the battery terminal 11 of the present embodiment, the extension portion 51 includes a first extension portion 54 extending along the fastening portion 21 in the vicinity of the outside of the fastening portion 21 and a first extension portion extending in a direction parallel to the flat plate portion 41. 2 extensions 56.

  As a result, the extended portion 51 can effectively reinforce a wide range including the connection portion (base portion 48) between the tightening portion 21 and the flat plate portion 41.

  Further, in the battery terminal 11 of the present embodiment, the extension portion 51 is mechanically fixed to the flat plate portion 41 by the second folded portion 57 formed in the extension portion 51.

  Thereby, the extension part 51 can be mechanically fixed to the flat plate part 41 with a simple and low-cost configuration.

  Next, a second embodiment will be described. FIG. 3 is a perspective view of the battery terminal 11x of the second embodiment. In the description of the present embodiment, the same or similar members as those of the above-described embodiment may be denoted by the same reference numerals in the drawings, and description thereof may be omitted.

  In the battery terminal 11x of the second embodiment, the second folded portion 57 formed at the tip of the extension portion 51 in the first embodiment is omitted.

  On the other hand, on both sides of the base portion of the first flat plate portion 43, a pair of holding portions (clamping portions) 49x and 49x are formed instead of the rising portions 49 and 49. The holding portions 49x and 49x are each folded back by 180 ° to sandwich the vicinity of the bent portion 55 of the extension portion 51.

  Thereby, the extension part 51 is mechanically fixed with respect to the flat plate part 41, and the connection part (root part 48) of the flat plate part 41 and the fastening part 21 can be reinforced similarly to 1st Embodiment. Further, in the present embodiment, the extension portion 51 is fixed to the flat plate portion 41 at a location close to the root portion 48, so that the reinforcement effect of the root portion 48 by the extension portion 51 is excellent.

  The preferred embodiment of the present invention has been described above, but the above configuration can be modified as follows, for example.

  In the configuration of the first embodiment shown in FIG. 1, a folded portion is formed on the flat plate portion 41 side, and the folded portion sandwiches the tip of the extended portion 51, so that the extended portion 51 is mechanically with respect to the flat plate portion 41. It can be changed to a fixed configuration.

  Similarly, in the configuration of the second embodiment shown in FIG. 3, holding portions are formed on both sides of the extension portion 51, and the extension portion 51 is fixed to the flat plate portion 41 by sandwiching the flat plate portion 41. Can be changed to configuration.

  Furthermore, instead of the configuration in which the extension portion 51 is fixed to the flat plate portion 41 by the second folded portion 57 or the holding portions 49x and 49x, the extension portion 51 and the flat plate portion 41 are mechanically fixed by means such as welding. The configuration can be changed.

11 Battery terminal 21 Tightening part 31 Receiving part 41 Flat plate part 42 Mounting hole (connection part)
51 Extension (auxiliary part)
54 1st extension part (1st auxiliary part)
55 Bending part 56 Second extension part (second auxiliary part)

Claims (4)

An arc-shaped tightening part that can be attached by inserting the battery post inside,
A pair of receiving portions extending outward from both ends of the arc of the tightening portion;
In the tightening portion, a connection portion that is integrally formed so as to be connected to one end portion in a direction parallel to the insertion direction of the battery post, and is capable of electrically connecting at least one of an electric wire and other parts. A flat plate portion formed with,
In the tightening portion, an auxiliary portion integrally formed so as to be connected to the other end portion in a direction parallel to the insertion direction of the battery post, and mechanically fixed to the flat plate portion;
A battery terminal comprising: The battery terminal according to claim 1,
The battery terminal according to claim 1, wherein the auxiliary portion has a bent portion disposed in the vicinity of a connection portion between the flat plate portion and the tightening portion. The battery terminal according to claim 1 or 2,
The auxiliary portion includes a first auxiliary portion extending along the tightening portion in the vicinity of the outer side of the tightening portion, and a second auxiliary portion extending along the flat plate portion. Battery terminal. The battery terminal according to any one of claims 1 to 3,
The battery terminal, wherein the auxiliary portion is mechanically fixed to the flat plate portion by a sandwiching portion formed on at least one of the auxiliary portion and the flat plate portion.

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