JP6664205B2 - Battery holding device - Google Patents

Description

  The present invention relates to a battery holding device that holds a cylindrical battery on the side of the battery.

  JP-A-2013-8655 discloses, as shown in FIG. 6, a plurality of cylindrical batteries 2 arranged side by side via a resin member (adhesive) 6 poured between the batteries 2 and a holder 7. A battery holding device 1 held by a holder 7 is disclosed.

However, the conventional battery holding device 1 has the following problems.
(A) Since each battery 2 is fixed to the holder 7 using the resin member 6, when there is a defective battery, it is difficult to replace only the battery.
(B) Since the resin member (adhesive) 6 is used, there is room for improvement in terms of material cost reduction.
(C) Since the curing time of the resin member (adhesive) 6 is relatively long, there is room for improvement in productivity.

JP 2013-8655 A

  An object of the present invention is to provide a battery holding device that can eliminate the use of a resin member.

The present invention that achieves the above object is as follows.
(1) having a holder for holding a cylindrical battery,
A battery holding device, comprising: a ring into which the battery is inserted; and a lip protruding from the ring toward the inner diameter side of the ring and fitted into a constriction provided on a side surface of the battery.
(2) The battery holding device according to (1), wherein a cut is provided in a part of the ring in a circumferential direction so that the diameter of the ring can be enlarged or reduced.
(3) one end of the ring in the axial direction is outside the one end of the battery in the axial direction, and
The battery holding device according to (1) or (2), wherein the ring includes an axial stopper that protrudes from one end in the axial direction toward the inner diameter side of the ring.
(4) The holder is provided with a sub-ring into which the battery located on the outer diameter side of the ring and adjacent to the battery is inserted, according to any one of (1) to (3). The battery holding device as described in the above.
(5) a case that covers the cylindrical battery and the holder;
The ring includes an opening prevention protrusion that protrudes in a ring axis direction from a ring portion on both sides of the cut,
The battery holding device according to (2), wherein the case includes a case hole into which the opening prevention protrusion is inserted.
(6) The battery holding device according to (3), wherein the lip and the axial stopper are provided at positions different from each other in a circumferential direction of the ring.

According to the battery holding device of the above (1), since the lip protrudes from the ring into which the battery is inserted toward the inner diameter side of the ring and is fitted into the constriction on the side of the battery, the lip is merely fitted into the constriction of the battery. The battery can be held by the holder. Therefore, the use of the resin member (adhesive) which has been conventionally required can be eliminated. As a result, the following effects can be obtained.
(A) When there is a defective battery, the battery can be removed simply by removing the lip from the constriction of the battery, and the new battery can be held by the holder only by fitting the lip into the constriction of the new battery. .
(B) Material cost can be reduced as compared with the case where a resin member is required as an adhesive.
(C) Since it can be held simply by fitting the lip, it is advantageous in productivity as compared with the case where a resin member is required as an adhesive.

According to the battery holding device of the above (2), since the cut is made to be able to expand and contract the diameter of the ring, the diameter of the ring can be easily expanded and contracted. Therefore, the lip can be easily fitted into the neck of the battery, and the lip can be easily removed from the neck of the battery.

According to the battery holding device of the above (3), since the ring has the axial stopper, when the battery is inserted into the ring and the lip is fitted into the constriction of the battery, the battery hits the axial stopper and the holder contacts the battery. In contrast, it is possible to prevent the lip from moving out of the constriction of the battery by moving.

According to the battery holding device of the above (4), since the holder is provided with the sub-ring, when holding a plurality of batteries using a plurality of holders, the holders adjacent to each other are interposed via the batteries. Can be connected.

According to the battery holding device of the above (5), the ring includes the opening prevention protrusion protruding from both sides of the cut in the ring axis direction, and the case includes the case hole into which the opening prevention protrusion is inserted. For this reason, by inserting the opening prevention protrusion into the case hole, it is possible to suppress the ring from expanding in the case even if the ring has a cut. Therefore, it is possible to prevent the battery from falling off the ring in the case.

According to the battery holding device of the above (6), since the lip and the axial stopper are provided at different positions in the circumferential direction of the ring, the opening direction of the holder forming die is set to a direction parallel to the ring axis direction. By doing so, the lip and the stopper can be manufactured without using a slide mold or the like.

It is a perspective view of the holder in the battery holding device of the Example of this invention. FIG. 4 is a plan view of the holder in the battery holding device according to the embodiment of the present invention when the holder is connected to hold a plurality of batteries. FIG. 3 is a cross-sectional view of a holder and a case in the battery holding device according to the embodiment of the present invention, taken along a line AA in FIG. 2. Note that hatching of members other than the holder is omitted for clarity of the drawings. It is a figure showing the modification of the battery holding device of an example of the present invention, and is a top view in case a holder is provided with two rings and one sub-ring. It is a figure showing the modification of the battery holding device of the example of the present invention, and is a top view in case a holder has 16 rings and does not have a sub ring. It is a top view of the conventional battery holding device.

Hereinafter, a battery holding device according to an embodiment of the present invention will be described with reference to FIGS.
As shown in FIG. 3, the battery holding device 10 according to the embodiment of the present invention is a device for holding a plurality of cylindrical batteries 20 arranged side by side, and includes a holder 30 (which may be called a cap) and a case 40. And.

  The cylindrical battery 20 is, for example, a battery mounted on an automobile. Battery 20 is a lithium ion battery. However, the battery 20 is not limited to a lithium ion battery, and may be a nickel metal hydride battery. An electrode body (all not shown) including a positive electrode plate, a negative electrode plate, and a separator is housed inside the battery 20. Therefore, the battery 20 includes a positive terminal 21 and a negative terminal 22. In the battery 20, a constriction (concave portion, caulked portion) 23 whose diameter is reduced in the battery radial direction as compared with the general diameter portion is continuously formed in the vicinity of the end portion on the side of the positive electrode terminal 21 on the side wall. .

The batteries 20 adjacent to each other among the plurality of batteries 20 arranged side by side are spaced apart from each other in order to suppress that one battery 20 is affected by the heat of the other battery 20. . The plurality of batteries 20 may be arranged in a lattice shape, but as shown in FIG. 2, it is desirable that two adjacent rows are arranged in a staggered manner for space saving.

  The holder 30 holds the battery 20. The holder 30 is made of resin, is a molded product, and is an injection molded product. As shown in FIG. 1, the holder 30 includes a ring 31 into which the battery 20 is inserted, a lip 32 protruding from the ring 31 to the inner diameter side of the ring 31, an axial stopper 33, an opening prevention protrusion 34, 35. However, the sub ring 35 is not an essential component.

  One battery 20 is inserted into one ring 31. One ring 31 may be provided in one holder 30 as shown in FIG. 1, or two rings 31 may be provided in one holder 30 as shown in FIG. As shown, many (three or more, for example, sixteen) holders 30 may be provided.

  The ring 31 has a ring shape extending in the circumferential direction. The axial direction of the ring 31 is parallel to the axial direction of the battery 20 inserted into the ring 31. As shown in FIG. 4, the ring 31 is provided with a cut 31a at only one position in the circumferential direction. Thereby, the diameter of the ring 31 can be enlarged and reduced. As shown in FIG. 3, one end 31 b in the axial direction of the ring 31 is located outside the one end (positive end) of the battery 20 in the axial direction. As shown in FIG. 1, a non-circular portion 31 c that makes the outer peripheral surface of the ring 31 non-circular may be provided on the outer peripheral surface of the ring 31. When the non-circular portion 31c is provided, when a plurality of holders 30 are used, the relative rotation trajectory between the holders 30 can be regulated, and the occurrence of an assembly error can be suppressed.

A plurality of lips 32 are provided intermittently in the circumferential direction of the ring 31. The lip 32 is formed so as to protrude from the ring 31 toward the inner diameter side of the ring 31, and at least a tip end in the protruding direction is fitted (inserted or hooked) into the constriction 23 of the battery 20.

  The axial stopper 33 is formed so as to protrude from the one end 31 b of the ring 31 in the axial direction to the inner diameter side of the ring 31. A plurality of axial stoppers 33 are provided intermittently in the circumferential direction of the ring 31. The axial stoppers 33 are provided, for example, in the same number as the lips 32. In the circumferential direction of the ring 31, the position where the axial stopper 33 is provided and the position where the lip 32 is provided are different from each other. For this reason, when viewed from the axial direction of the ring 31, the axial stopper 33 and the lip 32 are provided at positions not overlapping each other. Accordingly, the direction of the axial stopper 33 and the direction of the lip 32 can be formed by setting the direction in which the molding die is removed in a direction parallel to the axial direction of the ring 31.

  The amount of protrusion of the axial stopper 33 to the inner diameter side of the ring 31 is larger than the amount of protrusion of the lip 32 to the inner diameter side of the ring 31 to ensure the function of the axial stopper 33. . The thickness of the axial stopper 33 (the thickness of the ring 31 in the axial direction) is larger than that of the lip 32 in order to ensure the function of the axial stopper 33.

  The opening prevention projections 34 are provided to protrude in the axial direction of the ring 31 from the ring portions on both sides of the cut 31a. As shown in FIG. 3, the opening prevention protrusion 34 is inserted (inserted) into a case hole 43 provided in the case 40. This prevents the ring 31 having the cut 31a from expanding in diameter using the case 40.

  The sub-ring 35 is formed integrally with the ring 31 as shown in FIG. In the sub-ring 35, a battery 20 different from the battery 20 inserted in the ring 31 (located at an adjacent position) is inserted. The sub-ring 35 is provided for connecting different holders 30 via the batteries 20 when the plurality of batteries 20 are held using the plurality of holders 30. The sub-ring 35 is located radially outside (outer diameter side) of the ring 31. The sub-ring 35 is provided continuously without a break in the circumferential direction. The sub-ring 35 is continuous with a part of the ring 31 in the circumferential direction at a part in the circumferential direction. As shown in FIG. 3, the sub-ring 35 is located at a position different from the ring 31 in the axial direction of the ring 31, and prevents the sub-ring 35 from hindering the battery holding by the ring 31.

  Case 40 covers battery 20 and holder 30. The case 40 is made of, for example, resin. Battery 20 and holder 30 are housed in case 40. The case 40 has an upper case 41 and a lower case 42 that are fixed to each other. On the upper wall of the case 40, that is, on the upper wall of the upper case 41, a case hole 43 into which the opening prevention projection 34 is inserted is formed.

Next, the operation of the embodiment of the present invention will be described.
(A) Since the lip 32 is fitted into the constriction 23 on the side of the battery 20 from the ring 31 into which the battery 20 is inserted, the battery 30 can be held by the holder 30 only by fitting the lip 32 into the constriction 23 of the battery 20. Therefore, the use of the resin member, which has conventionally been required, can be eliminated. As a result, the following effects can be obtained.
(A) When there is a defective battery, the battery 20 can be removed simply by removing the lip 32 from the constriction 23 of the battery 20, and a new one can be obtained simply by fitting the lip 32 into the constriction 23 of the new battery 20. Battery 20 can be held by the holder 30.
(B) Material cost can be reduced as compared with the case where a resin member is required as an adhesive.
(C) Since the battery 20 can be held only by fitting the lip 32, it is advantageous in productivity as compared with the case where a resin member is required as an adhesive.

(B) Since the cut 31a for allowing the diameter of the ring 31 to be increased or decreased is provided, the diameter of the ring 31 can be easily enlarged or reduced. Therefore, the lip 32 can be easily fitted into the constriction 23 of the battery 20, and the lip 32 can be easily removed from the constriction 23 of the battery 20.

(C) Since the ring 31 has the axial stopper 33, when the battery 20 is inserted into the ring 31 and the lip 32 is fitted into the constriction 23 of the battery 20, the battery 20 hits the axial stopper 33 and the holder 30 It is possible to prevent the lip 32 from moving away from the constriction 23 of the battery 20 by moving with respect to the battery 20.

(D) Since the holder 30 is provided with the sub-ring 35, when holding a plurality of batteries 20 using the plurality of holders 30, the adjacent holders 30 can be connected via the battery 20. .

(E) The ring 31 is provided with an opening prevention protrusion 34 protruding from both sides of the cut 31a in the axial direction of the ring 30, and the case 40 is provided with a case hole 43 into which the opening prevention protrusion 34 is inserted. Therefore, even if the cut 31 a is provided in the ring 31, the ring 31 can be prevented from expanding in the case 40 by inserting the opening prevention protrusion 34 into the case hole 43. Therefore, the battery 20 can be prevented from dropping from the ring 31 in the case 40.

(F) Since the lip 32 and the axial stopper 33 are provided at different positions in the circumferential direction of the ring 31, the opening direction of the mold of the holder 30 is set to the axial direction of the ring 30 so that the lip 32 and the axial The direction stopper 33 can be manufactured without using a slide type or the like.

(G) Since the number of held batteries 20 can be changed by changing the number of connected plurality of holders 30, it is easy to respond to the change in the number of held batteries 20. As a result, it is possible to easily cope with a change in the number of batteries depending on the vehicle type, a change in the number of batteries changed according to the mounting space, and the like.

DESCRIPTION OF SYMBOLS 10 Battery holding device 20 Cylindrical battery 21 Positive electrode terminal 22 Negative terminal 23 Constriction 30 Holder 31 Ring 31a Cut 31b One end in the axial direction of the ring 31c Non-circular part 32 Lip 33 Axial stopper 34 Opening protrusion 35 Sub-ring 40 Case 41 Upper Case 42 Lower case 43 Case hole

Claims (5)

A holder for holding the cylindrical battery,
The battery holding device, comprising: a ring into which the battery is inserted, and a lip protruding from the ring to an inner diameter side of the ring and fitted into a constriction provided on a side surface of the battery .
A battery holding device, wherein a cut is made in a part of the ring in a circumferential direction so that the diameter of the ring can be expanded or reduced. One end of the ring in the axial direction is axially outside the battery from one axial end of the battery,
It said ring comprises an axial stop which projects radially inwardly of the ring from the axial direction end portion, claim 1 Symbol placement of the battery holding device. Said holder, subrings battery in a position adjacent to the battery is in the outer diameter side of the ring is inserted is provided, a battery holding device according to claim 1 or claim 2, wherein. A case that covers the cylindrical battery and the holder,
The ring includes an opening prevention protrusion that protrudes in a ring axis direction from a ring portion on both sides of the cut,
Wherein the case, the opening stopper projection is provided with a feed opening to be inserted, the battery holding device according to claim 1. The battery holding device according to claim 2 , wherein the lip and the axial stopper are provided at positions different from each other in a circumferential direction of the ring.

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