JP2013109879A - Battery cover - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a battery cover capable of improving connection stability of a battery terminal.SOLUTION: A battery cover 1 covers a battery terminal 80 having an annular part 81 wound on a cylindrical battery post 71 protrusively provided to an upper surface 70a of a battery 70, and an electric wire connector 82 connected with the annular part 81 so as to protrude in a radial outside direction of the annular part 81 and connected to a connection terminal C of an electric wire W, and the connection terminal C. The battery cover 1 has: a supporting part 21 extending downward from a lower surface 20a of a ceiling wall 20 forming a ceiling of the battery cover 1, and formed so that a lower end surface 21b contacts the upper surface 70a of the battery 70; and a ricketiness prevention wall part 30 comprising a wall formed along a side part 81a of the annular part 81.

Description

  The present invention relates to a battery cover that covers a battery terminal.

  Conventionally, a battery terminal attached to a battery has an annular portion that is wound around a cylindrical battery post. There is also a battery cover that covers such a battery terminal. For example, Patent Document 1 proposes a battery cover that elastically contacts the battery terminal and covers the battery terminal.

  The battery cover described in Patent Document 1 has a fitting engagement portion for engagement that fits into the wire connection portion or the connection terminal inside the cover. In addition, a floating stopper portion that has elasticity and is hooked to the annular portion with respect to movement in the cover removal direction is integrally formed inside the cover. Further, an elastic holding rib that elastically contacts the annular portion is integrally formed inside the cover.

JP 2006-40797 A

  However, in the battery cover of Patent Document 1, when an external force is applied to the battery cover, the external force is immediately applied to the battery terminal, so that the battery terminal is easily moved by the external force. However, there is a problem that the connection stability is lowered.

  The present invention has been made in view of the above, and an object of the present invention is to provide a battery cover that can improve the connection stability of a battery terminal.

  In order to solve the above-described problems and achieve the object, a battery cover according to a first aspect of the present invention includes an annular annular portion wound around a cylindrical battery post projecting from an upper surface of a battery. A battery terminal having a wire connection portion connected to the annular portion so as to protrude in a radially outward direction of the annular portion and connected to a connection terminal of the electric wire, and a battery cover covering the connection terminal A support portion that extends downward from the lower surface of the ceiling wall that forms the ceiling of the battery cover and has a lower end surface in contact with the upper surface of the battery, and a side portion of the annular portion. And an anti-rattle wall portion formed of the formed wall.

In the battery cover according to claim 2 of the present invention, in the above invention, the rattle prevention wall portion has the wire connection portion in the vicinity of a position where the wire connection portion protrudes from the annular portion. It has the rotation control wall part which consists of a pair of wall arrange | positioned in this way, It is characterized by the above-mentioned.

  According to a third aspect of the present invention, in the battery cover according to the third aspect of the present invention, the battery cover is projected so as to be hooked from the inner surface of each wall facing the battery terminal to the lower part of the battery terminal. It further has a pair of floating stoppers.

According to a first aspect of the present invention, there is provided a battery cover that extends downward from a lower surface of a ceiling wall that forms the ceiling of the battery cover and has a lower end surface that is in contact with the upper surface of the battery; Since it has a rattling prevention wall portion formed of a wall formed along the side portion of the annular portion, the battery cover can be prevented from rattling and supported by the support portion on the upper surface of the battery. Since the battery terminal is not touched at a proper mounting position, even if an external force is applied to the battery cover, the battery terminal is not immediately applied with an external force, resulting in the connection stability of the battery terminal. Can be improved.
be able to.

  The battery cover according to claim 2 of the present invention is a rotation restricting wall comprising a pair of walls arranged so that the electric wire connecting portion is disposed in the vicinity of a position where the electric wire connecting portion protrudes from the annular portion. Since it has a portion, it is possible to prevent backlash that occurs when the battery cover is rotated.

  According to a third aspect of the present invention, the battery cover further includes a pair of anti-floating locking portions protruding so as to be hooked from the inner surfaces of the walls facing each other with the battery terminal therebetween to the lower portion of the battery terminal. Therefore, it is possible to prevent the battery cover from rattling due to the battery cover being lifted.

FIG. 1 is an exploded perspective view of a battery connection unit having a battery cover according to an embodiment of the present invention. FIG. 2 is a top view of the battery connection unit shown in FIG. FIG. 3 is a cross-sectional view taken along line AA of the battery connection unit shown in FIG. 4 is a side view of the battery connection unit shown in FIG. 5 is a cross-sectional view of the battery connection unit shown in FIG. 4 taken along line BB. FIG. 6 is a view of the battery cover shown in FIG. 1 as viewed obliquely from below. FIG. 7 is a view of the battery cover shown in FIG. 1 as viewed from below. FIG. 8 is a diagram for explaining that the backlash of the battery cover is prevented. FIG. 9 is a view of the battery cover of Modification 1 of the embodiment of the present invention as viewed from below. FIG. 10 is a view of the battery cover according to the second modification of the embodiment of the present invention as viewed from below. FIG. 11 is a view of a battery cover of Modification 3 of the embodiment of the present invention as viewed from below.

  Hereinafter, preferred embodiments of a battery cover according to the present invention will be described in detail with reference to the drawings.

(Embodiment)
FIG. 1 is an exploded perspective view of a battery connection unit 100 having a battery cover 1 according to an embodiment of the present invention. FIG. 2 is a top view of the battery connection unit 100 shown in FIG. FIG. 3 is a cross-sectional view of the battery connection unit 100 shown in FIG. FIG. 4 is a side view of the battery connection unit 100 shown in FIG. 5 is a cross-sectional view of the battery connection unit 100 shown in FIG. FIG. 6 is a view of the battery cover 1 shown in FIG. 1 as viewed obliquely from below. FIG. 7 is a view of the battery cover 1 shown in FIG. 1 as viewed from below.
The battery cover 1 according to the embodiment of the present invention covers the battery terminal 71 connected to the battery post 71 of the battery 70 and the connection terminal C of the electric wire W, and the connection terminal C.

First, the known battery 70 and battery terminal 80 will be described.
The battery 70 includes a columnar battery post 71 that protrudes from the upper surface 70a.

The battery terminal 80 is connected to the connection terminal C of the electric wire W, connected to the connection portion C of the electric wire W, and connected to the annular portion 81 so as to protrude in the radially outward direction of the annular portion 81. And a connecting portion 82.
The annular portion 81 is formed with an insertion hole 81b through which the battery post 71 is inserted. The insertion hole 81b is fastened by a bolt B1 and a nut N1 so that the hole diameter is reduced. For this reason, the battery terminal 80 is fixed to the battery post 71 by being fastened by the bolt B1 and the nut N1 and the hole diameter of the insertion hole 81b is reduced.
The electric wire connecting portion 82 is formed by planting a bolt B2. In the electric wire connecting portion 82, the bolt B2 is inserted into the insertion hole C1 formed in the connection terminal C of the electric wire W, and the electric wire W is fixed by being fastened by the bolt B2 and the nut N2.

Next, the battery cover 1 will be described.
The battery cover 1 is made of, for example, an insulating synthetic resin material, and includes a cover main body portion 10, an electric wire attachment portion 13 attached to an electric wire W drawn from the cover main body portion 10, an electric wire attachment portion 13, and the cover main body portion 10. It has the flexible connection part 14 which connects and has flexibility.

The cover body 10 has a ceiling wall 20 that forms a ceiling, and a peripheral side wall 21 that is erected downward along the edge of the ceiling wall 20, and an opening 10a is formed at a lower end 21a. It has an almost box shape.
The cover main body 10 includes a terminal accommodating portion 11 and a wire lead-out portion 12.

The terminal accommodating part 11 is an accommodating part for accommodating the battery terminal 80. As shown in FIG. 3, the terminal accommodating portion 11 includes a pair of floating stoppers 23. The pair of suspending locking portions 23 are portions of the peripheral side wall 21 protruding so as to be hooked from the inner surface 21c of each wall 21 of the wall 21 facing each other with the battery terminal 80 therebetween, to the lower portion 80a of the battery terminal 80. .
Such a pair of suspending locking portions 23 is provided on the lower portion 80a of the battery terminal 80 so that the battery cover 1 does not lift up when an external force is applied so that the battery cover 1 is lifted upward. It is supposed to be caught. In other words, the pair of floating stoppers 23 have a function of preventing the battery cover 1 from rattling due to the battery cover 1 being lifted.

  The wire lead-out portion 12 is a housing portion that accommodates the periphery of the connection terminal C of the electric wire W, and is provided so as to protrude from the terminal housing portion 11 along the direction in which the electric wire W is drawn out. The wire lead-out portion 12 has a wire lead-out port 21 e that is an opening formed in the peripheral side wall 21. The electric wire W is drawn out from the battery cover 1 through the electric wire outlet 21e.

The cover main body 10 is configured such that the lower end surface 21 b of the peripheral side wall 21 is in contact with the upper surface 70 a of the battery 70. That is, the peripheral side wall 21 extends downward from the lower surface 20 a of the ceiling wall 20 and is formed so that the lower end surface 21 b is in contact with the upper surface 70 a of the battery 70. Such a peripheral side wall 21 is configured to support the battery cover 1 on the upper surface 70 a of the battery 70 as a support portion.
Further, the cover main body 10 has a contact area expanding rib 22.

  The contact area expanding rib 22 is formed so that the lower end surface 21b of the peripheral side wall 21 extends in the horizontal direction, that is, the contact area between the upper surface 70a of the battery 70 and the lower end surface 21b of the peripheral side wall 21 is expanded. 21 is a wall provided to protrude from the outer surface 21d of the lower end 21a of 21. The contact area expanding rib 22 is formed so as to be connected to the peripheral side wall 21 so as to increase the contact area between the lower end surface 21 b and the upper surface 70 a of the battery 70, so that the battery cover 1 is stabilized on the upper surface 70 a of the battery 70. It comes to be mounted.

Further, the cover main body portion 10 is made of a wall formed along the side portion 81a of the annular portion 81, and has a backlash prevention wall portion 30 that prevents backlash of the battery cover.
The rattle prevention wall 30 is formed along the first rattle prevention wall 40 extending downward from the lower surface 20 a of the ceiling wall 20 to the position of the lower end 21 a of the peripheral side wall 21 and the upper portion 81 c of the annular portion 81. The second anti-rattle wall portion 50 thus formed and the rotation restricting portion 60 for restricting the play in the rotating direction of the battery cover 1 are provided.

As shown in FIG. 5 to FIG. 7, the first rattling prevention wall portion 40 connects a plurality of plate-like wall portions 41 and a plate-like wall portion group 42 constituted by a plurality of adjacent plate-like wall portions 41. And a guide wall portion 43 provided as described above.
Each plate-like wall portion 41 is a plate-like shape that is erected so as to be substantially orthogonal to the inner surface 21c of the peripheral side wall 21 and extends downward from the lower surface 20a of the ceiling wall 20 to the lower end 21a position of the peripheral side wall 21. It is a wall. That is, each plate-like wall portion 41 is configured such that the lower end surface 41 a is in contact with the upper surface 70 a of the battery 70.
A plurality of such plate-like wall portions 41 are provided on the inner surface 21c of each peripheral side wall 21 of the peripheral side wall 21 facing each other with the battery terminal 80 therebetween, whereby the first opposing wall portion group 42a and the second opposing wall portion. The group 42b is configured.

The guide wall portion 43 includes a first guide wall portion 43a formed so as to connect the side end portions 41b of the plate-like wall portions 41 of the first opposed wall portion group 42a, and a second opposed wall portion. And a second guide wall portion 43b provided so as to connect the side end portions 41b of the plate-like wall portions 41 of the group 42b. The first guide wall portion 43 a and the second guide wall portion 43 b are plate-like walls provided along the side portion 81 a of the annular portion 81.
The guide wall 43 is a plate-like wall that extends downward from the lower surface 20 a of the ceiling wall 20 to the position of the lower end 21 a of the peripheral side wall 21. Such a guide wall 43 is configured such that the lower end surface 21 b is in contact with the upper surface 70 a of the battery 70.

The first rattling prevention wall 40 is configured such that the guide wall 43 is provided along the side portion 81 a of the battery terminal 80, thereby preventing the battery cover 1 from rattling. Moreover, when the battery cover 1 is attached, the battery terminal 80 can be attached as a reference.
Furthermore, since the first rattling prevention wall portion 40 is formed from the position of the lower end 21a of the peripheral side wall 21, it can be attached with the battery terminal 80 as a reference from when the battery terminal 80 is positioned at the opening portion 10a. It is like that.

  Furthermore, the first rattling prevention wall portion 40 has cushioning properties when the guide wall portion 43 is supported by the plate-like wall portion group 42 at a plurality of locations. For this reason, even when the first rattle prevention wall 40 is in a position where it interferes with the battery terminal 80 when the battery cover 1 is attached, the interference state is avoided by the cushion function and the attachment of the battery cover 1 is not deteriorated. It is like that.

  In addition, the first rattling prevention wall portion 40 extends downward from the ceiling wall 20 to the position of the lower end 21a of the peripheral side wall 21, and the lower end surface 21b is in contact with the upper surface 70a of the battery 70, thereby preventing rattling. It functions as a support part.

  As shown in FIGS. 5 to 7, the second rattling prevention wall portion 50 includes an upper plate-like wall portion group including a plurality of upper plate-like wall portions 51 and a pair of adjacent upper plate-like wall portions 51. 52 and an upper guide wall portion 53 provided so as to be connected to each other.

The plurality of upper plate-like wall portions 51 are constituted by a first upper wall portion group 52a and a second upper wall portion group 52b constituted by a pair of adjacent upper plate-like wall portions 51.
Each of the upper plate-like wall portions 51 of the first upper wall portion group 52a is erected on the inner surface 43c of the first guide wall portion 43a and extends downward from the lower surface 20a of the ceiling wall 20. It is.
Each upper plate-like wall portion 51 of the second upper wall portion group 52b is erected on the inner surface 43d of the second guide wall portion 43b and extends downward from the lower surface 20a of the ceiling wall 20. It is.

  The upper guide wall portion 53 includes a first upper guide wall portion 53a provided so as to connect the side end portions 51a of the upper plate-like wall portions 51 of the first upper wall portion group 52a, and a second upper guide wall portion 53a. And a second upper guide wall portion 53b provided so as to connect the side end portions 51a of the upper plate-like wall portions 51 of the upper wall portion group 52b. The first upper guide wall portion 53 a and the second upper guide wall portion 53 b are plate-like walls provided along the side portion 81 a of the annular portion 81.

The rotation restricting wall portion 60 is formed along the side portion 81 a of the annular portion 81, and is arranged so that the wire connection portion 82 is located in the vicinity of the position where the wire connection portion 82 protrudes from the annular portion 81. It consists of a pair of walls. More specifically, as shown in FIG. 5, the rotation restricting wall portion 60 extends along the side portion 81 a of the annular portion 81 from the end portions 43 e and 43 f of the first guide wall 43 a and the second guide wall 43 b. The pair of walls are arranged so that the electric wire connection portion 82 is disposed in the vicinity of the position where the electric wire connection portion 82 protrudes from the annular portion 81.
Such a rotation restricting wall portion 60 is formed along the side portion 80a of the battery terminal 80, thereby suppressing backlash of the battery cover 1, and the first backlash preventing wall portion 40 and the second backlash preventing wall portion 40 described above. Even if the backlash prevention wall portion 50 causes a backlash that is difficult to reduce, the rotation restricting portion 60 comes into contact with the electric wire connecting portion 82 so that the rotation is restricted. Yes.

Here, it will be described with reference to FIG. 8 that the backlash of the battery cover 1 is prevented. FIG. 8 is a diagram for explaining that the backlash of the battery cover 1 is prevented.
When an external force that rotates the battery cover 1 is not applied, as shown in FIG. 8A, even when the battery cover 1 is moved by the external force, the side portion 81a of the annular portion 81 is the first portion. The backlash is suppressed by coming into contact with the backlash prevention wall 40 and the second backlash prevention wall 50.
Here, when an external force is applied so that the battery cover 1 is rotated, the rotation restricting wall 60 is brought into contact with the electric wire connecting portion 82 as shown in FIG. The direction of backlash is also suppressed.

  The battery cover 1 according to the embodiment of the present invention includes a peripheral side wall 21 that extends downward from the lower surface 20 a of the ceiling wall 20 and has a lower end surface 21 b in contact with the upper surface 70 a of the battery 70, and an annular portion 81. Since it has the rattling prevention wall part 30 which consists of the wall formed along the side part 81a, while preventing the rattle of the battery cover 1, it is supported by the upper surface 70a of the battery 70 by the peripheral side wall 21. Since the battery terminal 80 is not contacted at the normal mounting position, even if an external force is applied to the battery cover 1, the external force is not immediately applied to the battery terminal 80. As a result, the connection of the battery terminal Stability can be improved.

  In addition, the battery cover 1 according to the embodiment of the present invention has a rotating structure including a pair of walls arranged so that the electric wire connecting portion 82 is located in the vicinity of the position where the electric wire connecting portion 82 protrudes from the annular portion 81. Since the restriction wall portion 60 is provided, it is possible to prevent rattling that occurs when the battery cover 1 is rotated.

  Further, the battery cover 1 according to the embodiment of the present invention is configured such that the battery cover 1 extends from the inner surface 21c of each wall 21 of the peripheral wall 21 facing the battery terminal 80 to the lower portion 80a of the battery terminal 80. Since it further has a pair of floating stoppers 23 protruding so as to be caught, it is possible to prevent the battery cover 1 from rattling due to the battery cover 1 being lifted.

(Modification 1)
Next, Modification 1 of the battery cover 1 according to the embodiment of the present invention will be described with reference to FIG. FIG. 9 is a view of battery cover 2 of Modification 1 of the embodiment of the present invention as viewed from below.
The battery cover 2 of Modification 1 is implemented in that the second rattling prevention wall portion 50 further includes a third upper plate-like wall portion group 54 and a third upper guide wall portion 55. Different from the battery cover 1 of the form.
Other configurations are the same as those of the embodiment, and the same components as those of the embodiment are denoted by the same reference numerals.

The third upper plate wall portion group 54 is configured by a pair of adjacent upper plate wall portions 56. Each upper plate-like wall portion 56 of the third upper plate-like wall portion group 54 is a plate-like wall extending downward from the lower surface 20 a of the ceiling wall 20.
The third upper guide wall portion 55 is provided so as to connect the side end portions 56 a of the upper plate-like wall portions 56 of the third upper plate-like wall portion group 54, and the side portion 81 a of the annular portion 81. It is a plate-shaped wall provided along.

  The battery cover 2 of the first modified example has the same effect as that of the embodiment, and more side walls surround the side portion 81a of the annular portion 81, so that rattling is prevented. Therefore, the rattle prevention effect can be improved.

(Modification 2)
Next, Modification 2 of the battery cover 1 according to the embodiment of the present invention will be described with reference to FIG. FIG. 10 is a view of battery cover 3 of Modification 2 of the embodiment of the present invention as viewed from below.
In the battery cover 3 of Modification 2, the second rattling prevention wall portion 50 further includes a third upper plate-like wall portion group 54, and the first upper guide wall portion 53a and the second upper guide wall. It differs from the battery cover 1 of the embodiment in that it has an integral guide wall portion 57 instead of the portion 53b.
Other configurations are the same as those of the embodiment, and the same components as those of the embodiment are denoted by the same reference numerals.

  The integrated guide wall portion 57 includes upper plate-like wall portions 51, 56 of the first upper plate-like wall portion group 52 a, the second upper plate-like wall portion group 52 b, and the third upper plate-like wall portion group 54. This is a plate-like wall that is provided so as to connect the side end portions 51 a and 56 b and is provided along the side portion 81 a of the annular portion 81.

  The battery cover 3 of this modification 2 has the same effect as that of the embodiment, and more side walls surround the side portion 81a of the annular portion 81, so that rattling is prevented. Therefore, the rattle prevention effect can be improved.

(Modification 3)
Next, Modification 3 of the battery cover 1 according to the embodiment of the present invention will be described with reference to FIG. FIG. 11 is a view of battery cover 4 of Modification 3 of the embodiment of the present invention as viewed from below.
The battery cover 4 of Modification 3 is different from the battery cover 1 of the embodiment in that it has a columnar support portion 24 instead of the peripheral side wall 21 as a support portion.
Other configurations are the same as those of the embodiment, and the same components as those of the embodiment are denoted by the same reference numerals.

  The columnar support portion 24 extends downward from the lower surface 20 a of the ceiling wall 20 and is formed so that the lower end surface 24 a is in contact with the upper surface 70 a of the battery 70.

  The battery cover 4 of Modification 3 includes a columnar support portion 24 that extends downward from the lower surface 20a of the ceiling wall 20 and has a lower end surface 24a that is in contact with the upper surface 70a of the battery 70, and an annular portion 81 side. Since it has the rattling prevention wall part 30 which consists of a wall formed so that the part 81a may be met, while preventing rattling of the battery cover 4, and being supported by the upper surface 70a of the battery 70 by the peripheral side wall 21, Since the battery terminal 80 is not contacted at the normal mounting position, even if an external force is applied to the battery cover 4, the external force is not immediately applied to the battery terminal 80, and as a result, the same as in the embodiment. In addition, the connection stability of the battery terminal 80 can be improved.

  In the battery covers 1, 2, 3, and 4 according to the embodiment of the present invention, the backlash prevention wall portion 30 has the first backlash prevention wall portion 40, the second backlash prevention wall portion 50, or the rotation restriction. Although what has the wall part 60 was illustrated, it is not restricted to this. That is, if the wall formed along the side portion 81a of the annular portion 81 is not provided, for example, the backlash prevention wall portion 30 includes only the second backlash prevention wall portion 50. Also good.

  As mentioned above, the invention made by the present inventor has been specifically described based on the embodiment of the invention described above, but the invention is not limited to the embodiment of the invention described above, and departs from the gist thereof. Various changes can be made without departing from the scope.

1, 2, 3, 4 Battery cover 10 Cover body part 10a Opening part 11 Terminal accommodating part 12 Electric wire drawing part 13 Electric wire attachment part 14 Flexible connection part 20 Ceiling wall 20a Lower surface 21 Peripheral side wall 21a Lower end 21b, 24a Lower end surface 21c Inner surface 21d Outer surface 21e Electric wire outlet 22 Contact area expansion rib 23 Floating stop locking part 24 Columnar support part 30 Backlash prevention wall part 40 First backlash prevention wall part 41 Plate-like wall part 41a Lower end surface 41b Side end part 42 Plate-like wall Part group 42a First opposing wall part group 42b Second opposing wall part group 43 Guide wall part 43a First guide wall part 43b Second guide wall part 43c, 43d Inner surface 43e, 43f End part 50 Second rattling Prevention wall portion 51, 56 Upper plate-like wall portion 51a, 56a Side end portion 52 Upper plate-like wall portion group 52a First upper wall Group 52b Second upper wall portion group 53 Upper guide wall portion 53a First upper guide wall portion 53b Second upper guide wall portion 54 Third upper plate wall portion group 55 Third upper guide wall portion 57 Integral Guide wall part 60 Rotation restricting part 70 Battery 70a Upper surface 71 Battery post 80 Battery terminal 80a Lower part 81 Annular part 81a Side part 81b Insertion hole part 81c Upper part 82 Electric wire connection part 100 Battery connection unit B1, B2 Bolt N1, N2 Nut W Electric wire C Connection terminal

Claims (3)

An annular part wound around a cylindrical battery post projecting from the upper surface of the battery, and connected to the annular part connected to the annular part so as to protrude radially outward of the annular part. A battery cover that covers the battery terminal and the connection terminal,
A support portion that extends downward from the lower surface of the ceiling wall that forms the ceiling of the battery cover and is formed so that the lower end surface is in contact with the upper surface of the battery;
An anti-rattle wall comprising a wall formed along the side of the annular portion,
A battery cover comprising: The rattle prevention wall is
The rotation restriction wall part which consists of a pair of wall arrange | positioned so that the said electric wire connection part may be interposed in the vicinity of the position where the said electric wire connection part protrudes from the said annular part is characterized by the above-mentioned. Item 6. The battery cover according to Item 1. The battery cover
3. A pair of flotation locking portions protruding so as to be hooked from the inner surfaces of the walls facing each other with the battery terminal therebetween to the lower portion of the battery terminal. Battery cover as described in.

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