JP4646565B2 - Insulation cover for battery terminal - Google Patents

Description

  The present invention relates to a battery terminal insulating cover provided to cover a battery terminal.

In order to supply electric power of the battery, a battery terminal 1 having conductivity as shown in FIG. 9 is attached to the battery post of the battery. A power supply wire 2 is connected to the battery terminal 1 via a connection terminal 3. The insulating cover 4 is formed so as to cover the battery terminal 1 and the connection terminal 3 connected to the battery terminal 1 to prevent a short circuit. The insulating cover 4 shown in FIG. 9 has an upper cover 5 and a side cover 6, and is formed so that the upper cover 5 can be opened and closed (see, for example, Patent Document 1).
JP 2001-332242 A (page 3, FIG. 1)

  By the way, in the said prior art, it has the structure where the upper cover 5 has only covered the battery terminal 1. FIG. That is, the upper cover 5 has a structure that does not have a portion that can always contact and hold the periphery of the battery terminal 1. Accordingly, there is a problem that the upper cover 5 is lifted from the battery terminal 1 due to factors such as vibration. If the upper cover 5 is lifted up, the original function cannot be satisfied and there is a concern about the generation of abnormal noise.

  As a countermeasure, it is conceivable to provide a plurality of strip-shaped ribs in contact with the periphery of the battery terminal 1 inside the upper cover 5. However, if the ribs are formed to have a high protruding height in the formation of the strip-shaped rib, the ribs can be rubbed when the battery terminal 1 is covered, and the function can be reduced, or the battery terminal 1 can be covered. There is a problem of not. On the other hand, if the protruding height of the rib is formed low, there is a problem in that the gap cannot be generated between the rib and the battery terminal 1 to prevent the lifting. Therefore, it has been determined that mere ribs are not a countermeasure.

  This invention is made | formed in view of the situation mentioned above, and makes it a subject to provide the insulating cover for battery terminals which can prevent a float.

In order to solve the above-mentioned problems, the battery terminal insulating cover according to claim 1 of the present invention is formed with a battery post insertion hole to be wound around the battery post of the battery, and an electric wire to which one or a plurality of connection terminals are connected. The connection portion is continuous and has a tightening portion that is tightened by a bolt and a nut , and covers the connection terminal and the battery terminal having an annular portion that tightens the battery post insertion hole by the tightening portion by tightening the bolt and the nut. be those, the insulating cover battery terminal having a mating locking portion of the locking that fits before Symbol wire connecting portion or the connecting terminal to the internal,
Flexible floating stopper engaging portion formed as a protrusion of the cantilever shape integrally within said cover having, and the clamping portion of the annular portion to the movement of the removing direction of the insulating cover for battery terminal It is provided so that it can be caught.

  According to the present invention having such a feature, when the battery terminal is covered with the insulating cover, the fitting locking portion is fitted to the wire connecting portion or the connecting terminal, and the insulating cover is locked. Moreover, after the anti-floating latching portion comes into contact with the annular portion and bends elastically, it is caught by the annular portion. If the insulating cover tries to move in the direction of removing the cover due to rattling such as vibration, the anti-floating locking portion is caught by the annular portion, so that the insulating cover is prevented from rising.

A battery terminal insulating cover according to a second aspect of the present invention is the battery terminal insulating cover according to the first aspect, wherein the battery terminal insulating cover has an elastic holding rib in elastic contact with the annular portion inside the battery terminal insulating cover. Furthermore, it is characterized by being formed integrally.

  According to the present invention having such a feature, the elastic holding rib makes elastic contact with the annular portion of the battery terminal, thereby suppressing the play of the insulating cover. Since the elastic holding rib makes elastic contact with the annular portion, it absorbs variations of a certain size.

  According to the first aspect of the present invention, there is an effect that the insulating cover can be prevented from being lifted. Further, by preventing the lifting, the original function can be satisfied and the occurrence of abnormal noise can be prevented.

  According to the second aspect of the present invention, there is an effect that it is possible to suppress backlash. Therefore, it is possible to further prevent the insulating cover from being lifted.

Hereinafter, description will be given with reference to the drawings.
FIG. 1 is a perspective view of a battery terminal and an insulating cover showing an embodiment of an insulating cover for a battery terminal according to the present invention. 2 is a perspective view in the direction C of FIG. 1, FIG. 3 is a perspective view of the insulating cover, FIG. 4 is a perspective view in the direction C of FIG. 3, and FIG. 6 is a cross-sectional view taken along line BB in FIG. 3, FIG. 7 is a perspective view of the battery terminal viewed from above, and FIG. 8 is a perspective view of the battery terminal viewed from below.

  1 and 2, reference numeral 11 indicates an insulating cover for battery terminals (hereinafter abbreviated as an insulating cover) of the present invention. The insulating cover 11 is formed by injection molding of an insulating synthetic resin material. The insulating cover 11 is formed to cover the battery terminal 12 and the plurality of connection terminals 13 to 15 (see FIG. 7) connected to the battery terminal 12 so as to prevent a short circuit. Moreover, the insulating cover 11 of this embodiment is formed so as to cover the current sensor 16 attached with the connection terminals 13 to 15 being inserted. Hereafter, each said structural member is demonstrated, referring FIG. 1 thru | or FIG.

  The insulating cover 11 includes an insulating cover body 17, a wire attachment portion 18 attached to an electric wire (not shown) drawn from the insulation cover body 17, and a flexible member that connects the insulation cover body 17 and the wire attachment portion 18. And a flexible connecting portion 19. The insulating cover body 17 is formed in a box shape having a ceiling wall 20 and a peripheral side wall 21. The peripheral side wall 21 is formed with a drawer port 22 and a side wall extension 23. The lead-out port 22 is formed for pulling out the current sensor 16. The side wall extension 23 is formed on the drawing side of an electric wire (not shown). One end of the flexible connecting portion 19 is coupled to the edge of the side wall extension portion 23. An electric wire attaching portion 18 is coupled to the other end of the flexible connecting portion 19.

  Inside the insulating cover main body 17, a plurality of positioning portions 24, a pair of fitting locking portions 25, a float locking locking portion 26, and an elastic holding rib 27 are formed. The positioning portion 24 is a portion where the battery terminal 12 and the current sensor 16 can come into contact, and is formed for the purpose of maintaining the positional relationship between the insulating cover 11 and the battery terminal 12.

  The fitting locking portion 25 is a portion for locking the insulating cover main body 17. In this embodiment, the fitting locking portion 25 is hooked to a protruding piece facing portion 46 described later of the connection terminal 14 connected to the battery terminal 12. (You may make it catch in the electric wire connection part 38 mentioned later in the battery terminal 12. In this form, since securing of a securing space is difficult by presence of the current sensor 16, it mentions later. It is set so as to be caught with respect to the protruding piece facing portion 46). The fitting locking portion 25 is formed as a cantilever locking protrusion having flexibility.

  The suspending locking portion 26 is formed so as to be hooked to a tightening portion 40 of an annular portion 37 to be described later in the battery terminal 12. The floating stopper 26 is formed as a cantilever projection having flexibility. It is not necessary for the locking stopper 26 to have a locking force as high as that of the fitting locking part 25, and it is sufficient that the lifting of the insulating cover body 17 (movement in the cover removal direction) can be suppressed.

  When the battery terminal 12 is covered with the insulating cover main body 17 in the configuration of the suspending locking portion 26, the suspending locking portion 26 comes into contact with a tightening portion 40 of the annular portion 37 described later. Then, after that, the tip of the anti-floating locking portion 26 is guided while sliding with respect to the tightening portion 40. At this time, the floating stopper 26 is elastically bent. When the buoyancy locking portion 26 bends, the tip of the levitation locking portion 26 gets over the tightening portion 40 and is caught on the back side of the tightening portion 40. The insulating cover main body 17 is in a state in which an annular portion 37 (to be described later) is also inserted therein. The insulating cover main body 17 is prevented from being lifted by the catch of the anti-floating locking portion 26.

  The elastic holding rib 27 is a portion for suppressing backlash of the insulating cover main body 17, and is formed so as to elastically contact a side portion 41 of an annular portion 37 described later in the battery terminal 12. In this embodiment, the elastic holding rib 27 is disposed and formed at a position away from the fitting locking portion 25 (because the backlash increases as the distance from the fitting locking portion 25 increases). The elastic holding rib 27 has a stationary wall 28 protruding from the peripheral side wall 21 (cover wall) and a movable holding wall 29 surrounding the stationary wall 28 (the shape is an example. The insulating cover body 17 is an example). As long as the backlash can be suppressed, other shape ribs having elasticity may be used).

  The movable holding wall 29 has a base end connected to the peripheral side wall 21 and has elasticity so as to bend in the proximity direction with respect to the immovable wall 28. More specifically, there are two immovable walls 28 in the present embodiment, and they are arranged so as to be spaced apart from each other (assuming that at least one immovable wall 28 is sufficient). The immovable wall 28 is a strip-shaped wall that is orthogonal to the peripheral side wall 21, and is formed to extend straight from the opening edge of the insulating cover body 17 to the ceiling wall 20. An introduction guide slope 30 is formed on such a stationary wall 28. The introduction guide slope 30 is formed at the leading end of the annular portion 37 to be described later, which is on the opening edge side of the insulating cover body 17. The introduction guide slope 30 is formed to be inclined toward the movable holding wall 29.

  The movable holding wall 29 has a pair of holding wall side portions 31 and a holding wall contact portion 32 and is formed in a substantially U-shape. The holding wall side portion 31 is disposed outside the fixed wall 28. The base end of the holding wall side portion 31 is coupled to the peripheral side wall 21. Further, a space from the middle of the holding wall side portion 31 to the leading end of the annular portion 37 described later is formed so as to be spaced from the peripheral side wall 21. The interval is formed as a portion necessary for bending the movable holding wall 29 in the proximity direction with respect to the immovable wall 28.

  An introduction guide slope 33 is formed at the introduction tip of the holding wall side portion 31. The introduction guide slope 33 of the holding wall side 31 is inclined in the same direction as the introduction guide slope 30 of the stationary wall 28, and the introduction guide slope 30 of the stationary wall 28 is more inclined and the holding wall side is inclined. It arrange | positions so that the introduction guide slope 33 of the part 31 may be located in the lower side. The introduction guide slopes 30 and 33 are arranged and formed so as to be able to guide in two stages (the two-stage configuration makes it possible to cause the movable holding wall 29 to bend reliably). If the immovable wall 28 does not exist and a situation occurs in which the introduction guide slope 33 does not slide while being in contact with the top of the introduction guide slope 33 of the holding wall side portion 31, the movable holding wall 29 is deformed in the damage direction. There is a risk of losing.)

  In the configuration of the elastic holding rib 27, when the battery terminal 12 is covered with the insulating cover body 17, the introduction guide slope 30 of the immovable wall 28 comes into contact with the annular portion 37 described later. Then, the introduction guide slope 30 is guided while sliding with respect to the annular portion 37 described later, and thereafter, the introduction guide slope 33 of the holding wall side portion 31 is similarly guided while sliding. At this time, the movable holding wall 29 is gradually bent, and when the annular portion 37 described later passes through the introduction guide slope 33 of the holding wall side portion 31, the holding wall contact portion 32 of the movable holding wall 29 contacts the annular portion 37 described later. To do. The insulating cover main body 17 is in a state in which an annular portion 37 (to be described later) is also inserted therein. The insulating cover body 17 is held by the elastic restoring force of the elastic holding rib 27.

  The battery terminal 12 includes a battery terminal main body 34, and bolts 35 and nuts 36 as fastening means. The battery terminal main body 34 has an annular portion 37 that is wound around a battery post (not shown) of the battery, and an electric wire connecting portion 38 that is continuous with the annular portion 37. A battery post insertion hole 39 is formed in the annular portion 37. The battery post insertion hole 39 is reduced in diameter as the bolt 35 and the nut 36 are screwed together. The bolt 35 and the nut 36 are attached to the tightening portion 40 of the annular portion 37.

  When the battery terminal 12 is covered with the insulating cover main body 17, the locking stopper 26 of the insulating cover main body 17 is caught by the tightening portion 40. Further, the elastic holding rib 27 of the insulating cover main body 17 is in elastic contact with the side portion 41 of the annular portion 37.

  Connected to the electric wire connecting portion 38 of the battery terminal 12 are connecting terminals 13 to 15 that are stacked one above the other. The connection terminals 13 to 15 overlapped vertically are connected to the wire connection part 38 in a state where the connection terminals 13 to 15 are inserted through the current sensor 16. Note that the current sensor 16 is known and will not be described here.

  The connection terminals 13 to 15 are formed by punching a metal plate having conductivity and bending it (the terminal shape and number in the figure are examples). Each of the connection terminals 13 to 15 has an electrical contact portion (reference numeral omitted) that contacts the electric wire connection section 38 of the battery terminal 12 and an electric wire crimp section (reference numeral omitted) that crimps the conductor of the electric wire. The electrical contact portions come into contact with each other when the connection terminals 13 to 15 are stacked one above the other. A bolt insertion hole (reference numeral omitted) having a diameter slightly larger than the diameter of the terminal fixing bolt 42 is formed through the electrical contact portion. The electric wire crimping portion is formed with a pair of caulking pieces (reference numerals omitted).

  A pair of protruding pieces 43 are formed at the electrical contact portion of the connection terminal 13. The protruding pieces 43 are formed on both sides of the connection terminal 13. More specifically, the protruding piece 43 is formed by bending downward a square piece continuous on both sides of the connection terminal 13. Such a protruding piece 43 is formed with an elastic locking portion (reference numeral omitted) that bends inward. The elastic locking portion is a cantilever piece having elasticity and is formed so that the tip is hooked on the connection terminal 14.

  A pair of inserted protrusions 44 and a pair of detent pieces 45 are formed in the electrical contact portion of the connection terminal 14. The inserted protrusion 44 and the rotation stopper 45 are formed on both sides of the connection terminal 14. More specifically, the insertion convex portion 44 is arranged and formed in accordance with the position of the protruding piece 43 of the connection terminal 13. Further, the rotation preventing piece 45 is arranged and formed so as to be arranged next to the insertion convex portion 44.

  The inserted protrusion 44 is formed in a shape that allows the protruding piece 43 of the connection terminal 13 to be inserted. Moreover, the insertion convex part 44 is formed in the shape where the side part of the inserted protrusion piece 43 can contact | abut. In this embodiment, the inserted convex portion 44 has a front convex portion (reference numeral omitted), a rear convex portion (reference numeral omitted), and an insertion space (reference numeral omitted) therebetween. The front protrusion and the rear protrusion are formed so as to protrude from both sides of the connection terminal 14. A projecting piece facing portion 46 that allows the outer surface of the projecting piece 43 to come into contact is formed at the tip of the rear convex portion. When the battery terminal 12 is covered with the insulating cover body 17, the fitting locking portion 25 of the insulating cover body 17 is caught on the protruding piece facing portion 46.

  The anti-rotation piece 45 is formed by bending downward a continuous strip on both sides of the connection terminal 14. The anti-rotation piece 45 is formed so as to face the side of the electric wire connection portion 38 of the battery terminal 12 with close contact or a slight gap.

  A pair of insertion protrusions 47 are formed on the electrical contact portion of the connection terminal 15. The inserted protrusions 47 are formed on both sides of the connection terminal 15. More specifically, the insertion convex portion 47 is arranged and formed in accordance with the position of the protruding piece 43 of the connection terminal 13 and the position of the detent piece 45 of the connection terminal 14.

  The insertion protrusion 47 is formed in a shape that allows the protruding piece 43 of the connection terminal 13 and the rotation stopper 45 of the connection terminal 14 to be inserted. Moreover, the insertion convex part 47 is formed in the shape which the side part of the inserted protrusion piece 43 and the side part of the rotation prevention piece 45 can contact | abut. In this embodiment, the insertion convex portion 47 has a front convex portion (reference numeral omitted), a rear convex portion (reference numeral omitted), and an insertion space (reference numeral omitted) therebetween.

  As a feature of each part of the connection terminals 13 to 15, the protruding piece 43 and the insertion protrusions 44 and 47 are formed in order to restrict the positional displacement in the front-rear direction of the connection terminals 13 to 15 that are vertically overlapped. ing. Moreover, the protrusion piece 43 is formed in order to control the position shift of the horizontal direction of the connection terminals 13-15 piled up and down. In addition, the elastic locking portion of the protruding piece 43 is formed to make it difficult to separate the connection terminals 13 and 14 that are superposed one above the other. Further, the protruding piece facing portion 46 is formed to restrict the opening of the protruding piece 43. Further, the locking piece 45 is formed so as to prevent the connection terminal 14 that is vertically stacked from turning around the terminal fixing bolt 42 of the battery terminal 12.

  In the above configuration, when the battery terminal 12 is covered with the insulating cover 11, the fitting locking portion 25 is locked to the protruding piece facing portion 46 of the connection terminal 14, and the insulating cover 11 is locked. At this time, the suspending locking portion 26 is hooked on the annular portion 37. The elastic holding rib 27 is in elastic contact with the annular portion 37 of the battery terminal 12. According to the present invention, the insulating cover 11 is prevented from being lifted by the floating stopper 26. Further, according to the present invention, the backlash of the insulating cover 11 is suppressed by the elastic holding rib 27. Since the elastic holding rib 27 is in elastic contact with the annular portion 37, the elastic holding rib 27 absorbs a variation of a certain size.

  As described above with reference to FIGS. 1 to 8, according to the present invention, the insulating cover 11 can be prevented from being lifted. Further, by preventing the insulating cover 11 from being lifted up, it is possible to satisfy the original function and prevent the generation of abnormal noise.

  In addition, it goes without saying that the present invention can be variously modified without departing from the spirit of the present invention.

It is a perspective view of the battery terminal and insulation cover which show one Embodiment of the insulation cover for battery terminals of this invention. It is a perspective view of the C view direction of FIG. It is a perspective view of an insulating cover. It is a perspective view of the C view direction of FIG. FIG. 4 is a sectional view taken along line AA in FIG. 3. FIG. 4 is a sectional view taken along line BB in FIG. 3. It is a perspective view of the battery terminal seen from the upper part. It is a perspective view of the battery terminal seen from the bottom. It is a perspective view of the battery terminal and insulation cover of a prior art example.

Explanation of symbols

11 Battery terminal insulation cover (insulation cover)
DESCRIPTION OF SYMBOLS 12 Battery terminal 13-15 Connection terminal 16 Current sensor 17 Insulation cover main body 18 Electric wire attachment part 19 Flexible connection part 20 Ceiling wall 21 Peripheral side wall (cover wall)
22 Pull-out port 23 Side wall extension part 24 Positioning part 25 Fitting latching part 26 Floating stopper latching part 27 Elastic holding rib 28 Non-moving wall 29 Movable holding wall 30, 33 Introduction guide slope 31 Holding wall side part 32 Holding wall contact part 34 Battery terminal main body 35 Bolt 36 Nut 37 Annular part 38 Electric wire connecting part 39 Battery post insertion hole 40 Tightening part 41 Side part 42 Terminal fixing bolt 43 Projection piece 44, 47 Insertion convex part 45 Anti-rotation piece 46 Projection piece opposing part

Claims (2)

A battery post insertion hole to be wound around the battery post of the battery is formed, a wire connection portion to which one or a plurality of connection terminals are connected is continuous, and has a tightening portion to be tightened by a bolt and a nut, and is tightened by the bolt and nut. wherein a battery terminal having an annular portion to tighten tightening unit battery post insertion hole, there is for covering, and the connection terminal, the locking to be fitted before Symbol wire connecting portion or the connecting terminal to the internal by In the battery terminal insulation cover with the fitting locking part
Flexible floating stopper engaging portion formed as a protrusion of the cantilever shape integrally within said cover having, and the clamping portion of the annular portion to the movement of the removing direction of the insulating cover for battery terminal An insulating cover for battery terminals, which is provided so as to be caught. The insulating cover for a battery terminal according to claim 1,
An insulating cover for battery terminals , wherein an elastic holding rib that elastically contacts the annular portion is further integrally formed inside the insulating cover for battery terminals .

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