JP2018014282A - Battery fixing structure and manufacturing method of battery unit - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a battery fixing structure which can reduce man-hours in fixing a battery to a battery carrier with the use of a pressing part and a fixing part.SOLUTION: A battery fixing structure 1 comprises: an arrangement part 11 in which a battery 2 is arranged; a pressing part 13 which is arranged on the battery 2 so as to fix the battery 2 in the arrangement part 11; a fixing part 12 which is provided between the arrangement part 11 and the pressing part 13 so as to fix the battery 2 between the arrangement part 11 and the pressing part 13. Between a contact part 131 making contact with the battery 2 and a convex fastening part 132 for fastening the fixing part 12 to the pressing part 13, the pressing part 13 does not have a welding part for connecting the contact part 131 to the fastening part 132.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a battery fixing structure for fixing a battery mounted on a vehicle and a method for manufacturing a battery unit.

  When the battery is fixed to the battery carrier, a pressing part installed on the battery and a fixing part that fixes the space between the battery carrier and the pressing part are used. Patent Document 1 discloses a structure for fixing a plurality of batteries to a battery base. Two insertion holes are provided in the battery base, and one end of the J bolt is inserted into these insertion holes. The other end of the J bolt is inserted into a hole formed in a holding bracket installed in the battery, and the nut is tightened to fix the battery between the battery base and the holding bracket.

International Publication No. 2011/136107

  However, since the contact portion that is in contact with the battery constituting the presser portion and the fastening portion that is formed at the center of the contact portion and has a hole into which the fixing portion is inserted are formed from different members, a plurality of batteries There has been a problem that the man-hour for fixing the battery carrier is large.

  Therefore, the present invention has been made in view of these points, and an object of the present invention is to provide a battery fixing structure that can reduce the man-hours when fixing the battery to the battery carrier using the pressing portion and the fixing portion. And

  In the first aspect of the present invention, an installation part in which a battery is installed, a presser part installed in the battery to fix the battery to the installation part, and between the installation part and the presser part A fixing portion that fixes the battery between the installation portion and the pressing portion, and the pressing portion fastens the contact portion in contact with the battery and the fixing portion to the pressing portion. There is provided a battery fixing structure that does not have a welded portion that connects the contact portion and the fastening portion between the convex fastening portion.

  The pressing portion may be installed on the battery so as to contact a part of a surface of the battery opposite to the surface contacting the installation portion. Moreover, the said battery may be installed in the said installation part, and the said holding part may have the length more than the length which match | combined the length of the width direction of the said some battery. Moreover, the said fastening part may have a hole in which the said fixing | fixed part is inserted. The fastening portion may have a plurality of the holes.

  The fixed portion includes a straight portion and a curved portion, and the installation portion has a long hole having a length larger than a maximum length in a direction orthogonal to the straight portion of the fixed portion, and the long hole In the state in which the fixing portion is inserted, the distal end of the bending portion may have a small hole that is inserted from a direction opposite to the direction in which the fixing portion is inserted into the elongated hole. Moreover, the said long hole and the said small hole may each be provided with two or more.

  In the second aspect of the present invention, a step of installing the battery in the installation portion of the battery fixing structure for fixing the battery, and a step of manufacturing a presser portion in which a convex fastening portion is formed by molding a metal member, And a step of placing the presser part on the battery, and a step of inserting a fixing part for fixing the battery between the installation part and the presser part into a hole formed in the fastening part. A battery unit manufacturing method is provided.

  According to the present invention, it is possible to reduce the man-hour when the battery is fixed to the battery carrier using the presser part and the fixing part.

1 shows a battery fixing structure 1 according to the present embodiment. The state which the member which comprises the battery fixing structure 1 which concerns on this embodiment was isolate | separated is shown. A procedure for installing the fixing unit 12 in the installation unit 11 in the battery fixing structure 1 according to the present embodiment will be described. A modification of the presser part 13 is shown. The modification of the baseplate 111 and the presser part 13 is shown.

FIG. 1 is a diagram showing a battery fixing structure 1 according to the present embodiment. FIG. 2 is a diagram showing a state where members constituting the battery fixing structure 1 according to the present embodiment are separated.
The battery fixing structure 1 is a structure for fixing a plurality of batteries 2 to the installation part 11. The battery 2 is a vehicle battery having a substantially rectangular parallelepiped shape. By fixing the battery 2 to the installation part 11, a battery unit mounted on a vehicle such as a commercial vehicle is completed. The battery fixing structure 1 includes an installation part 11, a fixing part 12, a pressing part 13, and a fastening part 14.

  The installation part 11 is a metal battery carrier, for example, and is a member for installing a plurality of batteries 2. The installation unit 11 includes a bottom plate 111, a left side plate 112, a right side plate 113, a back plate 114, a front plate 115, and a back plate 116. The bottom plate 111 is made of metal and has a rectangular shape. The bottom plate 111 has a surface with which the lower surface of the battery 2 contacts. The bottom plate 111 has a plurality of rectangular holes.

  The left side plate 112 and the right side plate 113 are made of metal and have a rectangular shape. The left side plate 112 and the right side plate 113 are each formed by extending upward (in the Z direction in FIG. 1) perpendicular to the bottom plate 111 from the end of the bottom plate 111 in the left-right direction (X direction in FIG. 1). The left side plate 112 and the right side plate 113 have surfaces that contact the side surfaces of the battery 2 when the battery 2 is installed on the bottom plate 111. The left side plate 112 and the right side plate 113 have a plurality of rectangular holes.

  The back plate 114 is made of metal and has a concave shape. The back plate 114 is formed by extending upward from the rear end of the bottom plate 111 in the front-rear direction (Y direction in FIG. 1) perpendicular to the bottom plate 111. The back plate 114 is formed at a rear end in the front-rear direction (Y direction in FIG. 1) of the left side plate 112 and the right side plate 113 so as to be orthogonal to the left side plate 112 and the right side plate 113. The back plate 114 has a surface with which a part of the back surface of the battery 2 comes into contact when the battery 2 is installed on the bottom plate 111.

  The front plate 115 and the rear plate 116 are made of metal and have a rectangular shape. The front plate 115 and the rear plate 116 are each formed by extending downward from both ends of the bottom plate 111 in the front-rear direction perpendicular to the bottom plate 111. Since the battery fixing structure 1 includes the front plate 115 and the rear plate 116, the bottom plate 111 can be separated from the installation surface where the front plate 115 and the lower end of the rear plate 116 are in contact with each other by a predetermined distance.

  The bottom plate 111 has a long hole 1111 and a small hole 1112. The long hole 1111 is a hole into which the fixing portion 12 is inserted, and has a long hole shape having a straight portion extending in the front-rear direction of the bottom plate 111. The length of the long hole 1111 in the short direction is slightly larger than the diameter of the fixed portion 12. The long hole 1111 has a length larger than the maximum length in the direction orthogonal to the straight portion 121 of the fixed portion 12 in the front-rear direction of the bottom plate 111. The long hole 1111 is formed at the center in the left-right direction of the bottom plate 111 and at a position near the front end that is a predetermined distance away from the front end in the front-rear direction of the bottom plate 111.

  The small hole 1112 is a hole into which the fixing portion 12 is inserted, and has a circular shape having a diameter slightly larger than the diameter of the fixing portion 12. The small hole 1112 is formed at a position away from the rear end in the longitudinal direction of the long hole 1111 by a predetermined distance. The long holes 1111 and the small holes 1112 are formed so as to be positioned between the plurality of batteries 2 when the bottom plate 111 is viewed from above with the plurality of batteries 2 installed in the installation portion 11.

  The fixing | fixed part 12 is a volt | bolt which has metal J shape, for example. The fixed part 12 includes a straight part 121 and a curved part 122. The straight portion 121 is a straight portion made of metal and having a certain diameter. A groove 1211 is formed at one end of the linear portion 121. The groove 1211 is a thread groove, and is formed in the straight part 121 at a predetermined distance from the tip of the straight part 121. The fastening component 14 can be fastened to the groove 1211.

  The curved portion 122 is a semi-arc-shaped portion made of metal and having a certain diameter. The curved portion 122 is formed at the end of the linear portion 121 opposite to the end where the groove 1211 is formed. The fixing unit 12 is provided between the installation unit 11 and the holding unit 13 and is used to fix the battery 2 between the installation unit 11 and the holding unit 13. A method of inserting the fixing part 12 into the long hole 1111 and the small hole 1112 and installing the fixing part 12 in the installation part 11 will be described later.

  The presser unit 13 is a member that is installed in the battery 2 and fixes the battery 2 to the installation unit 11. The pressing part 13 is installed in the battery 2 so as to contact a part of the surface of the battery 2 opposite to the surface contacting the bottom plate 111 of the installation part 11. The presser portion 13 includes a contact portion 131 and a fastening portion 132. Contact portion 131 is made of metal and has an L-shaped cross section. Thus, the cross section of the presser portion 13 is L-shaped, so that the plurality of batteries 2 can be more firmly installed on the installation portion 11.

  The contact portion 131 includes an upper surface plate 1311 and a side surface plate 1312. The upper surface plate 1311 is made of metal and has a rectangular shape, and has a surface in contact with a part of the upper surface of the battery 2. The side plate 1312 is made of metal and has a rectangular shape, and has a surface in contact with a part near the upper end of the side surface on the front side in the front-rear direction of the battery 2 (Y direction in FIG. 1). The side plate 1312 is formed to extend downward from the front end in the front-rear direction (Y direction in FIG. 1) of the upper plate 1311 perpendicular to the upper plate 1311.

  The fastening part 132 is a metal convex member for fastening the fixing part 12 to the presser part 13. The fastening portion 132 is formed near the center position in the longitudinal direction of the presser portion 13. The upper surface of the fastening part 132 is a substantially square plane. The upper surface of the fastening portion 132 is connected to the contact portion 131 by a metal plate formed at both ends in the left-right direction (X direction in FIG. 1) of the fastening portion 132 so as to be orthogonal to the upper surface. A hole 1321 is formed at the center of the upper surface of the fastening portion 132. The hole 1321 has a slightly larger diameter than the diameter of the fixed portion 12. The hole 1321 is a hole into which the fixing part 12 is inserted. The upper surface of the fastening portion 132 is formed to be inclined at a predetermined angle with respect to the upper surface plate 1311.

  The presser unit 13 has a length that is equal to or greater than the total length of the plurality of batteries 2 installed in the installation unit 11 in the width direction (X direction in FIG. 1). By setting the length of the presser part 13 to such a length, the area where the presser part 13 contacts the plurality of batteries 2 can be increased, so that the battery 2 can be more firmly installed on the installation part 11. . Between the contact part 131 and the fastening part 132, the welding part for connecting the contact part 131 and the fastening part 132 is not provided. The contact portion 131 and the fastening portion 132 are integrally formed from a single metal plate.

  The fastening part 14 is a part fastened to the fixing part 12. The fastening component 14 is a metal nut, for example. In the fastening part 14, the straight part 121 and the curved part 122 of the fixing part 12 are inserted into the long hole 1111 and the small hole 1112, and the tip of the straight part 121 of the fixing part 12 is inserted into the hole 1321 provided in the presser part 13. In the inserted state, it is fastened to the groove 1211 formed in the straight portion 121.

FIG. 3 is a diagram illustrating a procedure for installing the fixing unit 12 in the installation unit 11 in the battery fixing structure 1 according to the present embodiment. The procedure for installing the fixing unit 12 in the installation unit 11 by inserting the fixing unit 12 into the long hole 1111 and the small hole 1112 will be described with reference to FIG.
First, the bending portion 122 of the fixing portion 12 is inserted into the elongated hole 1111. Next, in a state where the curved portion 122 is positioned below the bottom plate 111, the fixing portion 12 is moved along the long hole 1111 toward the end portion on the small hole 1112 side of the long hole 1111.

  When the fixing portion 12 is moved until the tip of the bending portion 122 is positioned below the small hole 1112, the fixing portion 12 is moved upward, that is, in a direction opposite to the direction in which the fixing portion 12 is inserted into the elongated hole 1111. As a result, the distal end of the bending portion 122 is inserted into the small hole 1112. Thus, since the long hole 1111 and the small hole 1112 are formed in the bottom plate 111, the fixing part 12 can be installed with respect to the installation part 11 from above the installation part 11, so that the work efficiency is improved. Can do.

[Modification]
FIG. 4 is a view showing a modified example of the presser portion 13. Fig.4 (a) is a figure which shows the pressing part 13a. FIG. 4B is a diagram showing the presser portion 13b.
In the example shown in FIGS. 1 to 3, the number of holes 1321 formed in the fastening portion 132 is one, but the number of holes is arbitrary. The presser part 13 a has a fastening part 132 a in the same manner as the presser part 13. The fastening part 132a has holes 1321a to 1321c. The holes 1321a to 1321c have a diameter that is slightly larger than the diameter of the fixed portion 12, similarly to the hole 1321. The holes 1321a to 1321c are linearly arranged in the direction orthogonal to the longitudinal direction of the contact portion 131.

  Further, the shape of the hole 1321 in the battery fixing structure 1 according to the present embodiment is a circular shape having a diameter slightly larger than the diameter of the fixing portion 12, but is not limited thereto, and the shape of the hole is arbitrary. The holding part 13b shown in FIG. 4 (b) has a fastening part 132b, like the holding part 13. The fastening portion 132b has a hole 1321d. The hole 1321d has a long hole shape having a straight line portion in a direction orthogonal to the longitudinal direction of the contact portion 131. The length of the contact portion 131 in the longitudinal direction of the hole 1321d is slightly larger than the diameter of the fixed portion 12.

  In this way, by adopting a structure in which a plurality of holes or elongated holes are formed in the fastening portion, a battery having a size different from that of the battery 2 in the present embodiment is installed in the installation portion 11, and the fixing portion Even when 12 is installed at a different angle, the battery 2 can be fixed to the installation unit 11 using the presser unit.

FIG. 5 is a view showing a modified example of the bottom plate 111 and the presser portion 13. FIG. 5A shows the bottom plate 111a. FIG. 5B shows the presser 13c. FIG. 5C shows the presser 13d.
In the example shown in FIGS. 1 to 3, the hole for inserting the fixing portion 12 formed in the bottom plate 111 is only one set of holes composed of one long hole 1111 and one small hole 1112. However, the number of holes is arbitrary. Similarly to the bottom plate 111, the bottom plate 111a is made of metal and has a rectangular shape. The bottom plate 111a has a plurality of rectangular holes.

  For example, as shown in FIG. 5A, the bottom plate 111a has six long holes 1111a to 1111f and six small holes 1112a to 1112f, so that the front and rear direction of the bottom plate 111a (FIG. 1 and FIG. Two sets in the Y direction in FIG. 5 and three sets in the left-right direction (X direction in FIGS. 1 and 5) of the bottom plate 111a may be provided.

  The long hole 1111a is formed in the vicinity of the left end that is a predetermined distance away from the left end in the left-right direction (X direction in FIGS. 1 and 5) of the bottom plate 111a. The long hole 1111c is formed at the center of the bottom plate 111a in the left-right direction. The long hole 1111e is formed in the vicinity of the right end of the bottom plate 111a that is a predetermined distance away from the right end in the left-right direction.

  The long hole 1111a, the small hole 1112a, the long hole 1111b, and the small hole 1112b are linearly arranged in the front-rear direction (Y direction in FIGS. 1 and 5) of the bottom plate 111a. Similarly, the long hole 1111c, the small hole 1112c, the long hole 1111d, and the small hole 1112d are linearly arranged in the front-rear direction of the bottom plate 111a. The long hole 1111e, the small hole 1112e, the long hole 1111f, and the small hole 1112f are formed in a straight line in the front-rear direction of the bottom plate 111a.

  The long holes 1111a, 1111c, and 1111e are formed in a straight line in the left-right direction of the bottom plate 111a (the X direction in FIGS. 1 and 5). The small holes 1112a, 1112c, and 1112e are linearly arranged in the left-right direction of the bottom plate 111a. The long holes 1111b, 1111d, and 1111f are formed in a straight line in the left-right direction of the bottom plate 111a. The small holes 1112b, 1112d, and 1112f are formed in a straight line in the left-right direction of the bottom plate 111a.

  In addition, when the bottom plate 111a has a plurality of long holes and small holes in this way, the presser portion 13 has a structure corresponding to the bottom plate 111a. For example, as shown in FIG. 5B, the pressing portion 13c has a contact portion 131a and fastening portions 132c to 132e. Similar to the contact portion 131, the contact portion 131a is a metal member having an L-shaped cross section. The contact portion 131a includes an upper surface plate 1311a and a side surface plate 1312a. The top plate 1311a is made of metal and has a rectangular shape like the top plate 1311. The side plate 1312a is made of metal and has a rectangular shape like the side plate 1312.

  The fastening portions 132c to 132e are metal members like the fastening portion 132, and are formed by being arranged in three straight lines in the longitudinal direction of the contact portion 131a. The fastening portions 132c to 132e have holes 1321e to 1321g, respectively. The holes 1321e to 1321g have a circular shape that is slightly larger than the diameter of the fixed portion 12 like the holes 1321.

  The distance between the hole 1321e and the hole 1321f is the same as the distance between the long hole 1111a and the long hole 1111c. The distance between the hole 1321f and the hole 1321g is the same as the distance between the long hole 1111c and the long hole 1111e.

  The pressing portion 13d shown in FIG. 5C has a contact portion 131b and a fastening portion 132f. Similar to the contact portion 131, the contact portion 131b is a metal member having an L-shaped cross section. The contact portion 131b includes an upper surface plate 1311b and a side surface plate 1312b. The top plate 1311b is made of metal and has a rectangular shape like the top plate 1311. The side plate 1312b is made of metal and has a rectangular shape like the side plate 1312.

  The fastening portion 132f is a metal member similar to the fastening portion 132, and has a length larger than that of the fastening portion 132 in the longitudinal direction of the contact portion 131b. The length in the longitudinal direction of the fastening portion 132f is larger than the length between the long hole 1111a and the long hole 1111e. The fastening portion 132f has a hole 1321h. The hole 1321h is an elongated hole having a straight portion in the longitudinal direction of the fastening portion 132f. The length in the longitudinal direction of the hole 1321h is larger than the length between the long hole 1111a and the long hole 1111e.

  In this way, a plurality of long holes and small holes are formed in the bottom plate 111, and a plurality of holes formed in the presser part 13 are formed, or a shape of the hole formed in the presser part 13 is changed. With the structure, even when a battery having a size different from that of the battery 2 in the present embodiment is installed in the installation unit 11 and the fixing unit 12 is installed at a different angle, the installation unit 11 can be installed using the holding unit. 11 can be fixed. In the present embodiment, the pressing portion 13 is made of metal, but is not limited thereto, and the material is arbitrary. For example, the presser portion 13 may be integrally formed of resin or composite material.

[Method of Manufacturing Battery Unit According to this Embodiment]
A method for manufacturing the battery unit according to this embodiment will be described.
First, the battery 2 is installed in the installation part 11 of the battery fixing structure 1 for fixing the battery 2. Next, the presser part 13 in which the convex fastening part 132 is formed by molding a metal member is manufactured. Then, the presser portion 13 is placed on the battery 2. Thereafter, the fixing portion 12 that fixes the battery 2 is inserted between the installation portion 11 and the pressing portion 13 into the hole 1321 formed in the fastening portion 132. In this way, a unit including the battery 2 mounted on the vehicle can be manufactured.

[Effects of battery fixing structure 1 according to this embodiment]
The battery fixing structure 1 according to the present embodiment includes an installation unit 11 in which the battery 2 is installed, a presser unit 13 installed in the battery 2 in order to fix the battery 2 to the installation unit 11, and the installation unit 11 and the presser unit. 13, and includes a fixing portion 12 that fixes the battery 2 between the installation portion 11 and the pressing portion 13. The pressing portion 13 includes a contact portion 131 that contacts the battery 2, and a fixing portion 12. There is no welded part for connecting the contact part 131 and the fastening part 132 between the convex fastening part 132 for fastening the presser part 13 to the presser part 13.

  Since the battery fixing structure 1 according to the present embodiment has such a configuration, the contact portion 131 and the fastening portion 132 in the presser portion 13 are not joined by welding, and the contact portion 131 and the fastening portion 132 are not joined. It is integrally formed from a single plate. Therefore, the battery fixing structure 1 according to the present embodiment can reduce the man-hour when the battery 2 is fixed to the installation part 11 using the holding part 13 and the fixing part 12.

  As mentioned above, although this invention was demonstrated using embodiment, the technical scope of this invention is not limited to the range as described in the said embodiment. It will be apparent to those skilled in the art that various modifications or improvements can be added to the above embodiment. It is apparent from the scope of the claims that the embodiments added with such changes or improvements can be included in the technical scope of the present invention.

DESCRIPTION OF SYMBOLS 1 ... Battery fixing structure 11 ... Installation part 111, 111a ... Bottom plate 1111, 1111a, 1111b, 1111c, 1111d, 1111e, 1111f ... Long hole 1112, 1112a, 1112b, 1112c, 1112d, 1112e, 1112f ... small hole 112 ... left side plate 113 ... right side plate 114 ... back plate 115 ... front plate 116 ... rear plate 12 ... fixing part 121 ... linear part 1211 ... · Groove 122 ··· curved portions 13, 13a, 13b, 13c, 13d ··· holding portions 131, 131a, 131b ··· contact portions 1311, 1311a, 1311b ··· upper surface plates 1312, 1312a, 1312b ··· Side plates 132, 132a, 132b, 132c, 132d, 132e, 132f... Fastening part 1321 1321a, 1321b, 1321c, 1321d, 1321e, 1321f, 1321g, 1321h ··· hole 14 ... fastening part 2 ... battery

Claims (8)

An installation part where the battery is installed;
A presser part installed in the battery to fix the battery to the installation part;
A fixing part provided between the installation part and the pressing part, and fixing the battery between the installation part and the pressing part;
Have
The pressing portion includes a welding portion that connects the contact portion and the fastening portion between a contact portion that contacts the battery and a convex fastening portion for fastening the fixing portion to the holding portion. Battery fixing structure characterized by not. The presser part is installed in the battery so as to be in contact with a part of the surface opposite to the surface in contact with the installation part in the battery,
The battery fixing structure according to claim 1. A plurality of the batteries are installed in the installation unit,
The presser part has a length equal to or longer than a total length of the batteries in the width direction.
The battery fixing structure according to claim 1 or 2. The fastening part has a hole into which the fixing part is inserted,
The battery fixing structure according to any one of claims 1 to 3. The fastening portion has a plurality of the holes,
The battery fixing structure according to claim 4. The fixed portion includes a straight portion and a curved portion,
Have
The installation part is
An elongated hole having a length larger than the maximum length in the direction perpendicular to the linear portion of the fixed portion;
In a state where the fixing portion is inserted into the elongated hole, the distal end of the bending portion has a small hole inserted from a direction opposite to the direction in which the fixing portion is inserted into the elongated hole. To
The battery fixing structure according to any one of claims 1 to 5. A plurality of the long holes and the small holes are provided, respectively.
The battery fixing structure according to claim 6. A process of installing the battery in the installation part of the battery fixing structure for fixing the battery;
A step of manufacturing a presser part in which a convex fastening part is formed by molding a metal member;
Placing the presser part on the battery;
Inserting a fixing portion for fixing the battery between the installation portion and the pressing portion into the hole formed in the fastening portion;
A method for producing a battery unit comprising:

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