JP6866515B2 - Battery holding device - Google Patents

Description

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

As shown in FIG. 6, Japanese Patent Application Laid-Open No. 2013-8655 describes a plurality of cylindrical batteries 2 arranged side by side via a resin member (adhesive) 6 poured between the battery 2 and the holder 7. The battery holding device 1 held by the 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 by using the resin member 6, it is difficult to replace only the defective battery when there is a defective 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 terms of productivity.

Japanese Unexamined Patent Publication No. 2013-8655

An object of the present invention is to provide a battery holding device capable of eliminating the use of a resin member.

The present invention that achieves the above object is as follows.
(1) Has a holder for holding a cylindrical battery,
The holder is a battery holding device including a ring into which the battery is inserted and a lip that protrudes from the ring toward the inner diameter side of the ring and is 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 circumferential direction of the ring so that the diameter of the ring can be expanded or contracted.
(3) One end of the ring in the axial direction is outside the axial direction of the battery from one end in the axial direction of the battery.
The battery holding device according to (1) or (2), wherein the ring includes an axial stopper that projects 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 a battery located on the outer diameter side of the ring and adjacent to the battery is inserted, in any one of (1) to (3). The battery holding device described.
(5) It has a case that covers the cylindrical battery and the holder.
The ring is provided with anti-opening protrusions that project in the ring axis direction from the ring portions on both sides of the cut.
The battery holding device according to (2), wherein the case is provided with a case hole into which the opening stopper protrusion is inserted.
(6) The battery holding device according to (3), wherein the lip and the axial stopper are provided at different positions in the circumferential direction of the ring.

According to the battery holding device of (1) above, since the lip is provided so as to protrude from the ring into which the battery is inserted toward the inner diameter side of the ring and to be fitted into the constriction on the side surface of the battery, the lip is simply fitted into the constriction of the battery. The holder can hold the battery. Therefore, the use of the resin member (adhesive), which has been required in the past, can be abolished. As a result, the following effects can be obtained.
(A) When there is a defective battery, the battery can be removed by simply removing the lip from the constriction of the battery, and the new battery can be held by the holder simply by fitting the lip into the constriction of the new battery. ..
(B) The 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 only 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 (2) above, since the cut is provided so that the diameter of the ring can be expanded or contracted, the diameter of the ring can be easily expanded or contracted. Therefore, the lip can be easily fitted into the constriction of the battery, and the lip can be easily removed from the constriction of the battery.

According to the battery holding device of (3) above, since the ring has an 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 touches the battery. On the other hand, it is possible to prevent the lip from coming off the constriction of the battery by moving.

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

According to the battery holding device of (5) above, the ring is provided with opening stopper protrusions protruding from both sides of the cut in the ring axial direction, and the case is provided with a case hole into which the opening prevention protrusion is inserted. Therefore, by inserting the opening stopper protrusion into the case hole, it is possible to prevent the ring from expanding in diameter in the case even when the ring is provided with a cut. Therefore, it is possible to prevent the battery from falling out of the ring inside the case.

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

It is a perspective view of the holder in the battery holding device of the Example of this invention. It is a top view of the holder in the battery holding device of the Example of this invention in the case of connecting a holder and holding a plurality of batteries. FIG. 5 is a cross-sectional view of a holder and a case in the battery holding device according to the embodiment of the present invention at the portion taken along the line AA in FIG. For the sake of clarity in the drawings, hatching of members other than the holder is omitted. It is a figure which shows the modification of the battery holding device of the Example of this invention, and is the top view in the case where a holder includes two rings and one sub ring. It is a figure which shows the modification of the battery holding device of the Example of this invention, and is the top view when the holder has 16 rings and does not have a sub ring. It is a top view of the conventional battery holding device.

Hereinafter, the battery holding device according to the embodiment of the present invention will be described with reference to FIGS. 1 to 5.
As shown in FIG. 3, the battery holding device 10 of 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. The battery 20 is a lithium ion battery. However, the battery 20 is not limited to the lithium ion battery, and may be a nickel hydrogen battery. Inside the battery 20, an electrode body (all not shown) including a positive electrode plate, a negative electrode plate, and a separator is housed. Therefore, the battery 20 includes a positive electrode terminal 21 and a negative electrode terminal 22. In the battery 20, a constriction (recess, caulking portion) 23 whose diameter is reduced in the radial direction of the battery as compared with the general diameter portion is continuously formed in the vicinity of the end portion of the side wall on the positive electrode terminal 21 side over the entire circumference. ..

The batteries 20 adjacent to each other among the plurality of batteries 20 arranged side by side are arranged at intervals from each other in order to prevent one battery 20 from being affected by the heat of the other battery 20. .. The plurality of batteries 20 may be arranged in a grid pattern, but as shown in FIG. 2, it is desirable that the plurality of batteries 20 are arranged so that two adjacent rows are arranged in a staggered pattern in order to save space.

The holder 30 holds the battery 20. The holder 30 is made of resin, is a mold-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 toward the inner diameter side of the ring 31, an axial stopper 33, an opening prevention protrusion 34, and a sub ring. 35 and. However, the sub ring 35 is not an essential configuration requirement.

One battery 20 is inserted into one ring 31. As shown in FIG. 1, only one ring 31 may be provided in one holder 30, or two rings 31 may be provided in one holder 30 as shown in FIG. 5. FIG. As shown, a large number (3 or more, for example, 16) may be provided in one holder 30.

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 only one cut 31a in the circumferential direction. As a result, the diameter of the ring 31 can be expanded or contracted. As shown in FIG. 3, the axial end portion 31b of the ring 31 is axially outside the battery 20 from the axial end (positive electrode side end) of the battery 20. As shown in FIG. 1, the outer peripheral surface of the ring 31 may be provided with a non-circular portion 31c having a non-circular 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 loci 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 project from the ring 31 toward the inner diameter side of the ring 31, and at least the tip in the projecting direction is fitted (inserted or hooked) into the constriction 23 of the battery 20.

The axial stopper 33 is formed so as to project from one end portion 31b in the axial direction of the ring 31 toward 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 number of axial stoppers 33 is the same as that of the lip 32, for example. 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. Therefore, when viewed from the axial direction of the ring 31, the axial stopper 33 and the lip 32 are provided at positions where they do not wrap with each other. As a result, by making the die-cutting direction of the molding die parallel to the axial direction of the ring 31, both directions of the axial stopper 33 and the lip 32 can be molded.

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

The opening prevention protrusions 34 are provided so as to project 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 stopper protrusion 34 is inserted (inserted) into the case hole 43 provided in the case 40. This prevents the ring 31 having the cut 31a from expanding in diameter by using the case 40.

As shown in FIG. 1, the sub ring 35 is integrally formed with the ring 31. A battery 20 (located adjacent to each other) different from the battery 20 inserted in the ring 31 is inserted into the sub ring 35. The sub ring 35 is provided to connect different holders 30 to each other via the batteries 20 when holding the plurality of batteries 20 using the plurality of holders 30. The sub ring 35 is on the radial outer side (outer diameter side) of the ring 31. The sub ring 35 is continuously provided without a break in the circumferential direction. The sub ring 35 is a part of the circumferential direction and is connected to a part of the circumferential direction of the ring 31. As shown in FIG. 3, the sub ring 35 is located at a position different from that of the ring 31 in the axial direction of the ring 31, and the sub ring 35 prevents the ring 31 from interfering with the battery holding.

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

Next, the operation of the examples of the present invention will be described.
(A) Since the lip 32 that is fitted into the constriction 23 on the side surface of the battery 20 from the ring 31 into which the battery 20 is inserted is provided, the battery 20 can be held by the holder 30 simply by fitting the lip 32 into the constriction 23 of the battery 20. Therefore, the use of the resin member, which has been required in the past, can be abolished. As a result, the following effects can be obtained.
(A) When there is a defective battery, the battery 20 can be removed by simply removing the lip 32 from the constriction 23 of the battery 20, and a new battery 20 can be removed by simply inserting the lip 32 into the constriction 23 of the new battery 20. Battery 20 can be held by the holder 30.
(B) The 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 is provided so that the diameter of the ring 31 can be expanded or contracted, the diameter of the ring 31 can be easily expanded or contracted. 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 includes 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 is the battery. It is possible to prevent the lip 32 from moving relative to 20 and coming off the constriction 23 of the battery 20.

(D) Since the holder 30 is provided with a sub-ring 35, when a plurality of batteries 20 are held by using the plurality of holders 30, the holders 30 adjacent to each other can be connected to each other via the batteries 20. ..

(E) The ring 31 is provided with opening-preventing protrusions 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-preventing protrusions 34 are inserted. Therefore, by inserting the opening prevention protrusion 34 into the case hole 43, it is possible to prevent the ring 31 from expanding in diameter in the case 40 even when the ring 31 is provided with the cut 31a. Therefore, it is possible to prevent the battery 20 from falling off 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 mold opening direction of the mold of the holder 30 is set to the ring 30 axial direction, so that the lip 32 and the shaft The directional 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 respond to changes in the number of batteries depending on the vehicle type, changes in the number of batteries depending on the mounting space, and the like.

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

Claims (1)

Has a holder to hold the cylindrical battery
The holder is a battery holding device including a ring into which the battery is inserted and a lip that protrudes from the ring toward the inner diameter side of the ring and is fitted into a constriction provided on a side surface of the battery.
One end of the ring in the axial direction is outside the axial direction of the battery from one end in the axial direction of the battery.
The ring is a battery holding device including an axial stopper that projects from one end in the axial direction toward the inner diameter side of the ring.

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