JP2010285077A - Battery holding structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To obtain a battery holding structure that is improved in a holdability of the battery. <P>SOLUTION: Since a fastening part P is provided to the upper end part of a J-bolt 54 and the lower end part of the J-bolt 54 serves as an engaging part S with a battery tray 16, a fastening force (axial force) F in the fastening part P is directly transmitted as an engaging force with the engaging part S. Moreover, since the axial force F is generated, a downward reaction force R is generated in a standing wall 20 via a hook part 74 of a battery clamp 60 and an engaging hole 24 of the standing wall 20 of the battery tray 16. In other words, an acting point of the reaction force R which increases the holdability of the battery clamp 60 is located in the upper end part of the standing wall 20. Therefore, the acting point of the reaction force R is made closer to the fastening part P, compared with a case where it is on the lower end side of the standing wall 20. Thus, the reaction force R on the other end 60B side of the battery clamp 60 becomes greater and, as a result, the holdability of the battery 14 can be improved. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a battery holding structure.

  As a battery holding structure for holding a battery mounted on a vehicle, for example, a technique disclosed in Patent Document 1 can be given. In Patent Document 1, a first rod member disposed in an L shape is provided from a lower portion of one side surface in the width direction of the battery to an upper surface of the battery, and the first rod member is provided on the upper surface of the battery. A pressing member that contacts both ends in the width direction is welded.

  A second rod member is provided on the opposite side of the first rod member, and a latching portion formed at the lower ends of the first rod member and the second rod member is formed at the lower part of the side surface of the battery tray. It is latched by the formed latching hole. In a state where the latching portion is latched in the latching hole, the battery is held by fastening the pressing member on the other end side in the width direction of the battery and the screw portion of the second rod member with a nut.

JP 2007-131158 A

  Here, when the nut is fastened, a reaction force against the fastening force of the nut is generated at the peripheral portion of the hooking hole via the hooking portion. The holding force of the battery is increased according to the magnitude of the reaction force. change. And in said prior art, the distance from the fastening part of a nut to the action point which the reaction force generate | occur | produces differs in the 1st rod member and the 2nd rod member.

  That is, since the first rod member side is farther from the fastening portion of the nut than the second rod member side, the reaction force on the first rod member side is smaller than that on the second rod member side, and the holding power of the battery Will get smaller. Accordingly, the holding force of the battery is different between the first rod member side and the second rod member side, and the balance is not good.

  In view of the above facts, the present invention has an object to obtain a battery holding structure with improved battery holding power.

  The battery holding structure according to claim 1 is integrally formed with a tray that holds the battery and a standing wall that is erected so as to face one side of a pair of side surfaces of the battery held in the tray. The battery tray is located on the opposite side of the standing wall and is provided along the vertical direction of the other side surface of the battery, with the lower end facing the tray and the upper surface of the battery. In addition, one end portion is engaged with the upper end portion of the standing wall, and the other end portion has a battery clamp fastened to the upper end portion of the rod.

  In the battery holding structure according to claim 1, the battery tray that holds the battery includes a tray that holds the battery, and a standing wall that is erected so as to face one side of the pair of side surfaces of the battery. Are integrally formed. One end of a battery clamp that faces the upper surface of the battery is engaged with the upper end of the standing wall, and a rod is provided on the opposite side of the standing wall along the vertical direction of the side surface on the other side of the battery. ing. The lower end of the rod is engaged with the tray, and the other end of the battery clamp is fastened to the upper end of the rod.

  Here, when the other end portion of the battery clamp is fastened by the fastener, the fastening force (axial force) is changed from the fastening portion where the fastening force acts to the lower end portion of the rod (engagement portion with the tray). It is directly transmitted as an engaging force. When a fastening force is applied at the other end of the battery clamp, a moment is applied to the battery clamp so as to rotate the one end of the battery clamp upward about the fastening portion. For this reason, a downward reaction force is generated at the upper end portion of the standing wall of the battery tray via one end portion of the battery clamp.

  In other words, the reaction force action point that improves the holding force by the battery clamp is provided at the upper end portion of the standing wall, and can be closer to the fastening portion side than when the reaction force action point is at the lower end side of the standing wall. . Thereby, the reaction force on the one end side of the battery clamp is increased, and as a result, the holding force of the battery can be improved.

  In addition, the difference in distance from the fastening portion to the point of action where the reaction force or engagement force is generated can be reduced between the one end side and the other end side of the battery clamp, and the balance is good at both ends of the battery clamp. In that sense, the holding power of the battery can be improved with respect to the tray of the battery tray.

  According to a second aspect of the present invention, in the battery holding structure according to the first aspect, the first engagement hole provided in the standing wall, the one end portion of the battery clamp, the first engagement hole, And an engaging portion that can be engaged.

  According to the second aspect of the present invention, it is possible to connect the one end portion of the battery clamp and the standing wall only by engaging the engaging portion provided at one end portion of the battery clamp with the first engagement hole provided in the standing wall. it can.

  According to a third aspect of the present invention, in the battery holding structure according to the first or second aspect, the rod is a J bolt, and a lower end portion of the J bolt extends to a second engagement hole provided in the tray. It is engaged from the battery side.

  In the third aspect of the invention, the lower end portion of the J bolt is engaged (inserted) from the battery side into the second engagement hole provided in the tray, so that the lower end portion of the J bolt is separated from the battery. Will head to.

  According to a fourth aspect of the present invention, in the battery holding structure according to any one of the first to third aspects, a head portion of a fastener that is recessed in the upper surface of the tray and fastens the tray to the fastened portion. An escape hole is provided for avoiding interference between the head and the bottom surface of the battery.

  In the invention according to claim 4, a relief hole for accommodating the head portion of the fastener for fastening the tray to the fastening portion is recessed in the upper surface of the tray so as to avoid interference between the head portion and the bottom surface of the battery. I am doing so.

  According to the first aspect of the present invention, the holding force for holding the battery can be improved.

  According to invention of Claim 2, workability | operativity is good compared with the case where the standing wall and the one end part of a battery clamp are fastened with a fastener.

  According to the third aspect of the invention, the lower end portion of the J bolt does not hit the side wall of the battery, and a high load is prevented from acting locally on the side wall.

  According to the fourth aspect of the present invention, the head of the fastener is prevented from hitting the bottom surface of the battery, and a high load is prevented from acting locally on the bottom surface.

It is a disassembled perspective view which shows the battery holding structure which concerns on this Embodiment. It is a perspective view which shows the battery holding structure which concerns on this Embodiment in a battery holding state. It is a perspective view which shows the rear part external appearance of a vehicle. (B) is sectional drawing for demonstrating the effect | action of the battery holding structure which concerns on this Embodiment, (A) is a comparative example of (B).

  Next, the battery holding structure according to the present embodiment will be described with reference to FIGS. In the figure, the arrow FR indicates the vehicle forward direction, and the arrow UP indicates the vehicle upward direction.

  FIG. 3 is a perspective view of a rear portion of the sedan type vehicle 10 provided with the battery holding structure according to the present embodiment. The vehicle 10 is a hybrid car that travels using an internal combustion engine and a motor as drive sources.

  As shown in this figure, a battery 14 (actually shown as a hidden line, but here shown as a solid line) is arranged behind the wheel house 12 in the rear part of the vehicle 10 (in the luggage room). It is installed. The battery 14 is used, for example, when the engine is started, and is fixed to a support portion (not shown).

  As shown in FIGS. 1 and 2, the battery 14 has a rectangular parallelepiped shape and is held by a battery tray 16 having a substantially L-shaped cross section. The battery tray 16 is fixed to the above-described support portion. The battery tray 16 includes a substantially flat tray 18 that is fixed to the support portion and holds the battery 14.

  Both corners of the long side portions 18A and 18B of the tray 18 are cut out in an arc shape, and a long plate-like standing wall 20 is formed from the central portion of one long side portion 18A of the tray 18 corresponding to the uncut portion. Is standing. The standing wall 20 is integrally formed with the tray 18, thereby reducing the number of parts. However, when it is not necessary to consider the number of parts, they may be configured as separate parts and integrated by fastening or the like.

  The standing wall 20 faces the side surface of the battery 14 and can support the battery 14 with the battery 14 held on the tray 18. Further, the standing wall 20 has a height that protrudes from the upper surface of the battery 14 in a state where the battery 14 is held on the tray 18, and the front end side of the standing wall 20 is engaged at substantially the same height as the upper surface of the battery 14. A joint hole (first engagement hole) 24 is formed.

  Further, a plate-like standing wall 22 lower than the standing wall 20 is erected from the central portion of one short side portion 18C of the tray 18 corresponding to the uncut portion of the tray 18, and the battery 14 is held on the tray 18. In this state, the battery 14 can be supported by facing the lower part of the side surface of the battery 14.

  At both ends of the standing wall 20 and the standing wall 22 in the width direction, protrusions 26 projecting outward in a trapezoidal shape are formed over the entire height direction of the standing walls 20, 22. While reinforcing, the standing walls 20 and 22 are prevented from being deformed.

  From the side end surface of the standing wall 22 and the side end surface of the standing wall 20, a strip-shaped stopper 28 extending in the horizontal direction and orthogonally connected to each other is provided. The battery 14 is positioned by contacting the stopper 28 with the lower part of the side surface of the battery 14 placed on the tray 18.

  The other short side 18D side of the tray 18 is not provided with the same standing wall as the standing wall 22 in consideration of the mounting property of the battery 14 to the tray 18, but is a strip-like shape connected to the side end face of the standing wall 20. A stopper 30 is provided to position the battery 14 placed on the tray 18 together with the stopper 28.

  Further, in the center of the upper surface of the tray 18, contact portions 32 and 34 are provided along the long side portions 18A and 18B and the short side portions 18C and 18D of the tray 18, respectively, and the battery 14 is placed on the tray 18. In this state, the bottom surface of the battery 14 comes into surface contact with the top surfaces of the contact portions 32 and 34. The contact portion 32 is wider than the contact portion 34, and through holes 36 (three in this case) are formed in the contact portion 34 at predetermined intervals, and the contact portions 32 are thinned.

  The portions other than the contact portions 32 and 34 of the tray 18 are concave portions 38, and are not in contact with the bottom surface of the battery 14 in a state where the battery 14 is held on the tray 18. A substantially cylindrical relief hole 40 is formed in the bottom surface of the recess 38, and an insertion hole 42 through which a fastener such as a bolt (not shown) can be inserted is formed in the center of the relief hole 40. Has been.

  When the fastener is inserted into the insertion hole 42 and the fastener is fastened to the support portion, the depth of the recess 38 and the relief hole 40 is prevented so that the head of the fastener does not protrude beyond the upper surface of the contact portion 32. The length is preset. Thus, the fastener does not contact the bottom surface of the battery 14 in a state where the fastener is fastened to the support portion.

  Further, a substantially U-shaped notch 44 is formed at the end of the contact portion 34 located on the other long side portion 18B side of the tray 18. Further, an engagement piece 46 having a crank-like cross section extends from the center of the long side portion 18B of the tray 18. The engaging piece 46 is formed obliquely upward from the center of the long side portion 18B of the tray 18 in a direction slightly separated from the long side portion 18A of the tray 18 after forming a groove portion 48 that once falls below the concave portion 38. An engaging wall 50 is formed so that the holding wall 52 extends in the horizontal direction at the upper end of the engaging wall 50.

  The engagement wall 50 is formed with an engagement hole (second engagement hole) 56 with which the hook portion 54A formed at the lower end portion of the J bolt 54 is engaged, and the groove portion 48 is formed with the notch described above. When the J bolt 54 is engaged with the engagement hole 56 together with the portion 44, it serves as an escape portion so that the J bolt 54 does not interfere.

  Further, the holding piece 52 is formed with an escape hole 58 similar to the tray 18. The escape hole 58 prevents the fastener from protruding from the upper surface of the holding piece 52 in a state where the fastener is fastened to the support portion.

  On the other hand, a male screw portion 54B (see FIG. 2) is provided at the upper end portion of the J bolt 54. The male screw portion 54B can be inserted into the insertion hole 62 formed in the one end portion 60A of the battery clamp 60. With the male screw portion 54B inserted into the insertion hole 62, the nut 64 is tightened. A battery clamp 60 is fixed to the J bolt 54.

  The battery clamp 60 has a substantially U-shaped cross section, and lip portions 66 that are bent horizontally toward the outside are provided at the tip portions of both side surfaces. The lip portion 66 reinforces the battery clamp 60 and prevents the battery clamp 60 from being deformed.

  A positioning piece 61 having an L-shaped cross section is provided on the lower surface of the one end portion 60 </ b> A of the battery clamp 60, and the positioning piece 61 can contact the upper surface and the side surface of the battery 14.

  At the center of the upper surface of the battery clamp 60 on the other end 60B side, an engaging portion 68 having a U-shaped cross section is projected. The engaging portion 68 is formed with an inclined surface 70 that gradually goes upward as it goes to the other end side of the battery clamp 60, and a horizontal portion is formed on the other end portion 60 </ b> B side of the battery clamp 60 of the inclined surface 70. 72 is formed. The tip of the horizontal portion 72 extends from the other end 60B of the battery clamp 60, and the tip of the horizontal portion 72 is L-shaped and engageable with the engaged hole 24 formed in the standing wall 20. A shaped collar portion 74 is formed.

  Next, functions and effects of the battery holding structure according to the present embodiment will be described.

  First, a method for attaching the battery 14 will be described.

  (1) After fixing the battery tray 16 shown in FIGS. 1 and 2 to a body panel (not shown), the battery 14 is placed on the tray 18 of the battery tray 16 and the side surface of the battery 14 is stopped. 28 and 30, the battery 14 is positioned.

  (2) Then, the lower end portion of the J bolt 54 is inserted into the groove portion 48 of the engagement piece 46 and is engaged toward the engagement hole 56 of the engagement wall 50.

  (3) Next, in a state where the collar portion 74 provided on the other end portion 60B of the battery clamp 60 is engaged with the engaged hole 24 of the standing wall 20 of the battery tray 16, the end portion 60A of the battery clamp 60 is The positioning piece 61 is brought into contact with the upper surface and the side surface of the battery 14, and the insertion hole 62 provided in the one end portion 60 </ b> A of the battery clamp 60 is inserted into the male screw portion 54 </ b> B at the upper end portion of the J bolt 54.

  (4) Then, the nut 64 is fastened to the male screw portion 54B of the J bolt 54, and the battery clamp 60 is fixed to the J bolt 54. Thereby, the battery 14 is attached to the battery tray 16.

  In addition, the attachment method of the battery 14 is not restricted to said order. The procedure can be appropriately changed in consideration of workability and the like.

(Action / Effect)

  In the prior art, for example, as shown in FIG. 4 (B), at the lower part of the L-shaped rod member 102 disposed from the upper surface of the battery 100 to the lower part of the side surface, at both ends in the width direction of the battery 100. The pressing members 104 and 106 that come into contact with each other are provided. Further, a rod member 108 is provided on the opposite side of the rod member 102, and engaging portions 110, 112 formed at the lower ends of the rod members 102, 108 are holes 116 formed at the lower side of the battery tray 114. , 118, the pressing member 106 and the rod member 108 are fastened by the nut 120.

  In this case, by tightening the nut 120, the fastening force (axial force) F ′ at the fastening portion P ′ is directly transmitted to the rod member 108, and on the rod member 108 side, via the engaging portion 112, The holding power of the battery 100 can be improved.

  However, the rod member 102 is formed in an L shape, and the engaging portion 110 of the rod member 102 is disposed on a diagonal line of the fastening portion P ′ across the center portion O of the battery 100, and in the fastening portion P ′. The axial force F ′ is transmitted to the engaging portion 110 located at the other end of the rod member 102 via the pressing member 106 located at one end of the rod member 102.

  In the engaging portion 110, a reaction force R ′ with respect to the fastening force of the nut 120 is generated. However, as described above, the engaging portion 110 is separated from the fastening portion P ′, and the reaction force R generated in the engaging portion 110 is generated. 'Will get smaller by that amount. That is, in the engaging part 110, the holding force of the battery 100 is smaller than that in the engaging part 112 side.

  On the other hand, as shown in FIG. 4A, in this embodiment, a fastening portion P that improves the holding force of the battery 14 is provided at the upper end portion of the J bolt 54, and at the lower end portion of the J bolt 54, Since the hook portion 54A is an engagement portion S that engages with the engagement hole 56 of the engagement wall 50 of the battery tray 16, the fastening force (shaft) at the fastening portion P is formed on the one end portion 60A side of the battery clamp 60. Force) F is directly transmitted as an engaging force to the engaging portion S, and a large fastening force is obtained. Therefore, the holding power of the battery 14 can be improved as in the prior art.

  Furthermore, in the present embodiment, a high reaction force R is obtained on the other end 60B side of the battery clamp 60. That is, in the fastening portion P, due to the generation of the downward axial force F, the battery clamp 60 has a moment M that tends to rotate the other end portion 60B of the battery clamp 60 upward about the fastening portion P. Works. For this reason, a downward reaction force R is generated at the upper end of the standing wall 20 via the flange 74 of the battery clamp 60 and the engaged hole 24 of the standing wall 20 of the battery tray 16. That is, the action point of the reaction force R that improves the holding force by the battery clamp 60 is provided at the upper end portion of the standing wall 20, and the fastening portion P is more than the case where the action point of the reaction force R is on the lower end side of the standing wall 20. Can be close to the side. Thereby, the reaction force R at the other end 60B side of the battery clamp 60 is increased, and as a result, the holding force of the battery 14 can be improved.

  In addition, the difference in distance from the fastening portion P to the engagement point S or the point of action where the reaction force R is generated can be reduced between the one end portion 60A side and the other end portion 60B side of the battery clamp 60. The balance is also improved at both ends of 60, and in this sense, the holding power of the battery 14 can be improved between the tray 18 of the battery tray 16.

  Further, in the present embodiment, there are only four points of the battery tray 16, the battery clamp 60, the J bolt 54 and the nut 64 as members for holding the battery 14, and the number of parts is small. Then, the engagement wall 24 is provided on the standing wall 20 of the battery tray 16, and the standing wall of the battery tray 16 is simply engaged with the hooked portion 74 provided on the other end 60 </ b> B of the battery clamp 60. 20 and the other end 60B of the battery clamp 60 can be connected, so that workability is better than when the standing wall 20 of the battery tray 16 and the other end 60B of the battery clamp 60 are fastened with a fastener or the like.

  In the prior art, as described above, the rod members 102 and 108 and the battery tray 114 are engaged at two locations. When attaching and detaching the battery 14, it is necessary to work by visually observing these two engaging portions. However, when the battery 14 is disposed in a limited space in the engine compartment, the engaging portion may not be visible. There is a lot of work. In this embodiment, since the battery tray 16 and the J bolt 54 have one engaging portion, the workability is better than that in the case where there are two engaging portions.

  Further, even if there is no structure capable of fastening the battery clamp 60, the battery 14 can be placed at any position as long as the battery tray 16 and the battery 14 can be placed in the battery mounting space. The degree of freedom of the battery 14 mounting position is improved.

  Here, the battery tray 16 and the battery clamp 60 are separate components, but may be a single component integrated with the battery tray 16 and the battery clamp 60 temporarily fixed.

  Further, in the present embodiment, the engagement piece 46 having a crank-like cross section is extended from the battery tray 16, and the hook of the J bolt 54 is inserted into the engagement hole 56 provided in the engagement wall 50 of the engagement piece 46. The part 54A is engaged from the battery 14 side. Accordingly, since the hook portion 54A faces the opposite side of the battery 14, the hook portion 54A is prevented from hitting the side wall of the battery 14 and a high load is prevented from acting locally on the side wall.

  Further, by forming the holding piece 52 extending in the horizontal direction at the upper end portion of the engagement wall 50, the hook portion 54A is covered with the holding piece 52 regardless of contact or non-contact. For this reason, not only the battery 14 but the hook part 54A does not contact other members.

  In the present embodiment, the escape hole 40 is provided in the tray 18 so as to avoid interference between the head of the fastener that fastens the battery tray 16 to the body panel and the bottom surface of the battery 14. This prevents the head of the fastener from hitting the bottom surface of the battery 14 and prevents a high load from acting locally on the bottom surface.

  In the present embodiment, the vehicle 10 has been described as a hybrid car. However, the present invention is not limited to a hybrid car, and may be applied to a battery of a general vehicle that does not include an electric motor as a drive source for traveling. May be.

10 Vehicle 14 Battery 16 Battery Tray 18 Tray (Battery Tray)
20 Standing wall (battery tray)
24 engaged hole (first engaging hole)
40 Escape hole 54 J bolt (rod)
56 engagement hole (second engagement hole)
58 escape hole 60 battery clamp 74 collar (engagement part)

Claims (4)

A battery tray in which a tray for holding a battery and an upright wall standing so as to face one side of a pair of side surfaces of the battery held in the tray are integrally formed;
A rod located on the opposite side of the standing wall, provided along the vertical direction of the other side surface of the battery, and a lower end engaged with the tray;
Facing the upper surface of the battery, one end is engaged with the upper end of the standing wall and the other end is fastened to the upper end of the rod;
A battery holding structure. A first engagement hole provided in the standing wall;
An engagement portion provided at one end of the battery clamp and engageable with the first engagement hole;
The battery holding structure according to claim 1.   The battery holding structure according to claim 1, wherein the rod is a J bolt, and a lower end portion of the J bolt is engaged from a side of the battery with a second engagement hole provided in the tray.   The recessed part provided in the upper surface of the said tray, the head of the fastener which fastens a tray to the to-be-fastened part is accommodated, and the escape hole which avoids interference with this head and the bottom face of the said battery was provided. 4. The battery holding structure according to any one of 3 above.

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