JP2024033837A - battery post connection unit - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a battery post connection unit capable of being formed with a plurality of types of terminal holders according to the battery size, and thereby, easily and securely connecting a battery having a different size with a battery post.

SOLUTION: A battery post connection unit 1 comprises a battery terminal 10 and a terminal holder 20. The terminal holder 20 comprises: a holder main body 21; and a stopper main body 31 that has a downward hanging part 33 serving as a stopper which abuts on a lateral face of the battery and regulates a position of the holder main body 21. A plurality of types of stopper main bodies 31 having different dimensions from an inner surface abutting on the battery, of the downward hanging part 33 to an end edge 32a of a horizontal part 32 are separately provided for one holder main body 21. One stopper main body of the plurality of types of stopper main bodies 31 is assembled to one kind of holder main body 21 to form the terminal holder 20 corresponding to the battery size.

SELECTED DRAWING: Figure 6

COPYRIGHT: (C)2024,JPO&INPIT

Description

The present invention relates to a battery post connection unit connected to a battery post of a battery.

This type of battery post connection unit is disclosed in Patent Document 1. The battery terminal with resin parts as a battery post connection unit described in Patent Document 1 is coupled to a terminal lower cover interposed between the lower part of the battery terminal and the upper part of the battery, and the other of the both sides of the lower cover. and a terminal stopper. Then, with the battery terminal mounted on the battery, a terminal stopper made of a resin component as a terminal holder comes into contact with the side of the battery, thereby preventing (positioning) the battery terminal from rotating relative to the battery.

Japanese Patent Application Publication No. 2010-160990

However, in the conventional battery terminal with resin parts, the stopper is integrally formed so as to hang down from the side of the lower cover of the resin part, so if the size of the battery differs, the stopper will change accordingly. It is necessary to mold a one-piece resin part each time.

The present invention has been made in view of the problems of the prior art. Another object of the present invention is to provide a battery post connection in which multiple types of terminal holders can be formed in advance according to the size of the battery, and batteries of different sizes can be easily and reliably connected to the battery post. The aim is to provide units.

A battery post connection unit according to an aspect of the present invention includes a battery terminal connected to a battery post of a battery, and a terminal holder that holds the battery terminal and is placed on the battery, and the terminal holder includes: A holder main body having a housing part that accommodates and holds the battery terminal, a horizontal part connected to a connecting part of the holder main body, and a horizontal part extending downward from one end side of the horizontal part and abutting against a side surface of the battery. a stopper body having a hanging part as a stopper that regulates the position of the holder body, and a plurality of types of stopper bodies having different dimensions from the inner surface of the hanging part that contacts the battery to the edge of the horizontal part. are provided separately for one type of the holder body, and one stopper body of the plurality of types of stopper bodies is assembled to the one type of holder body, thereby creating a terminal holder corresponding to the size of the battery. It forms the

According to the present invention, there is provided a battery post connection unit in which multiple types of terminal holders can be formed according to the size of the battery, and batteries of different sizes can be easily and reliably connected to the battery post. can be provided.

FIG. 2 is a perspective view showing an example of a battery mounting state of the battery post connection unit according to the first embodiment of the present invention. It is a perspective view showing the battery terminal used for the above-mentioned battery post connection unit. FIG. 3 is an exploded perspective view of the battery terminal. It is a perspective view showing a holder main body used for the above-mentioned terminal holder. It is a perspective view showing an example of a stopper main body used for the above-mentioned terminal holder. It is a perspective view showing an example of a terminal holder in a state where a stopper main body is assembled to the above-mentioned holder main body. It is a perspective view showing an example of the state where a battery terminal was assembled to the above-mentioned terminal holder. It is a top view which shows an example of the state in which the battery terminal was assembled to the said terminal holder. It is a perspective view which shows another example of a stopper main body used for the said terminal holder. It is a top view which shows the state which assembled the battery terminal to the terminal holder which is made by assembling the stopper main body of another example to the said end holder main body. It is a perspective view which shows an example of the battery post connection unit of 2nd Embodiment of this invention. It is a perspective view which shows an example of the state before welding of the terminal holder of the battery post connection unit of 3rd Embodiment of this invention. It is a perspective view which shows an example of the state after welding of the terminal holder of the said 3rd Embodiment.

Hereinafter, a battery post connection unit according to an embodiment of the present invention will be described in detail using the drawings.

FIG. 1 is a perspective view showing an example of a battery mounting state of a battery post connection unit according to a first embodiment of the present invention. FIG. 2A is a perspective view showing a battery terminal used in the battery post connection unit. FIG. 2B is an exploded perspective view of the battery terminal. FIG. 3 is a perspective view showing a holder body used in the terminal holder. FIG. 4 is a perspective view showing an example of a stopper main body used in a terminal holder. FIG. 5 is a perspective view showing an example of a terminal holder with a stopper main body assembled to the holder main body. FIG. 6 is a perspective view showing an example of a state in which the battery terminal is assembled to the terminal holder. FIG. 7 is a plan view showing an example of a state in which the battery terminal is assembled to the terminal holder. FIG. 8 is a perspective view showing another example of a stopper body used in a terminal holder. FIG. 9 is a plan view showing a state in which a battery terminal is assembled to a terminal holder formed by assembling the stopper body of another example above to an end holder body.

As shown in FIG. 1, the battery post connection unit 1 includes a metal battery terminal 10 connected to a battery post 3 of a battery 2, and a resin battery terminal 10 that holds the battery terminal 10 and is placed on the battery 2. A terminal holder 20 is provided. Note that the battery 2 is relatively small, and the stud bolt 15 of the battery terminal 10 has a terminal 6 connected to the end of the electric wire 5, a terminal portion of a fusible link (FL) directly attached to the battery, etc. (not shown), etc. The connection partner member is tightened with the nut 7 and connected. That is, the electric wire 5 is drawn out from the battery post connection unit 1 in a predetermined direction via the terminal 6 and the like. In addition, in the recesses 2b and 2b' at the corners on both sides of the top surface 2a of the small battery 2, there are cylindrical positive and negative lead electrodes tapered so that the diameter becomes smaller toward the tip. Battery posts 3 and 3' are respectively erected. A battery terminal 10 is fastened to the battery post 3 on the positive electrode (+electrode) side via a terminal holder 20.

As shown in FIGS. 2A and 2B, the battery terminal 10 includes a terminal main body part 11 as a post fastening part, a stud bolt 15 held by a holding part 13 of this terminal main body part 11, and a fastening mechanism 16. Be prepared.

The terminal main body part 11 is a part fastened to the battery post 3 of the battery 2, and is integrally formed of a conductive metal material. The terminal body portion 11 includes a fastening portion 12 that is fastened to the battery post 3 of the battery 2, and a holding portion 13 that is bent and formed continuously to the fastening portion 12 and electrically connected. The fastening portion 12 is folded back into a substantially U-shape via the bending connection portion 14, and includes a pair of upper and lower annular portions 12a and 12b having a post insertion hole 12c in the center. Further, the holding portion 13 includes a pair of upper and lower holding plate portions 13a and 13b connected to a pair of upper and lower annular portions 12a and 12b of the fastening portion 12. An insertion hole 13c into which the shaft portion 15b of the stud bolt 15 is inserted is formed in the center of the upper holding plate portion 13b. The head portion 15a of the stud bolt 15 is held between the pair of upper and lower holding plate portions 13a and 13b, and the shaft portion 15b of the stud bolt 15 is inserted into the insertion hole 13c of the upper holding plate portion 13a. The shaft portion 15b of the stud bolt 15 is exposed to the outside.

The stud bolt 15 is a fastening member that is held by the holding portion 13 of the battery terminal 10 and to which the terminal 6 connected to the end of the electric wire 5 is connected. The stud bolt 15 has a head portion 15a as a base portion and a shaft portion 15b provided with a screw, and these are integrally formed from a conductive metal material.

As shown in FIG. 2B, the fastening mechanism 16 is a mechanism for fastening the fastening portion 12 of the terminal body 11 to the battery post 3 of the battery 2, and includes a plate nut 17 as a penetrating member and a fastening bolt 18 as a fastening member. and a bracket 19 as a pressing force converting member. When fastening the fastening portion 12 of the terminal body 11 to the battery post 3 of the battery 2 using this fastening mechanism 16, the fastening bolt 18 is inserted in the axial direction X with the battery post 3 inserted into the post insertion hole 12c. Tighten along the line. Thereby, the fastening mechanism 16 generates a fastening force along the axial direction X between the fastening bolt 18 and the plate nut 17. Then, the fastening mechanism 16 moves the fastening end 12d via the plate nut 17 and the bracket 19 in the direction of narrowing the width of the slit 12e along the width direction Z, and opens the post insertion hole 12c. The diameter is reduced and the fastening portion 12 is fastened to the battery post 3.

As shown in FIGS. 3 to 9, the terminal holder 20 includes a holder body 21 made of one type of resin and stopper bodies 31 and 31' made of two types of resin.

As shown in FIG. 3, the holder body 21 includes a first housing part 22 that houses and holds the fastening part 12 of the terminal body part 11 of the battery terminal 10, and a first housing part 22 that houses and holds the holding part 13 of the terminal body part 11. and a connecting portion 24 that connects each stopper main body 31, 31'.

The first accommodating part 22 has a circular opening 22a at a position facing the post insertion hole 12c of the fastening part 12. Further, the second accommodating portion 23 has a rectangular opening 23a at a position facing the insertion hole 13c of the holding portion 13 for inserting a stud bolt. Furthermore, the connecting portion 24 is integrally formed to protrude from one side of the holder main body 21, and reinforcing vertical ribs 25 are integrally formed on and between the side surfaces 24a, 24a at both ends and therebetween. Further, the connecting portion 24 is provided with convex engaged portions 26 on both side surfaces 24a, 24a, respectively.

As shown in FIG. 4, the stopper main body 31 includes a horizontal part 32 connected to the connecting part 24 of the holder main body 21, and extends downward from one end of the horizontal part 32 and comes into contact with the side surface 2c of the battery 2. It has a hanging part 33 as a stopper that regulates the position of the main body 21. In other words, the stopper body 31 has a dimension a from the inner surface 33a of the hanging portion 33 that contacts the battery 2 to the edge 32a of the horizontal portion 32, and is formed in an L-shape when viewed from the side. . As shown in FIG. 7, in the terminal holder 20 in which the holder body 21 and the stopper body 31 are connected, from the inner surface 33a of the hanging part 33 to the center of the opening 22a of the holder body 21 (the post insertion hole 12c of the battery terminal 10) The dimension to the center O) is set as dimension A.

As shown in FIGS. 4 and 5, the stopper body 31 has reinforcing vertical ribs 34 integrally extending from the horizontal portion 32 to the hanging portion 33 at positions corresponding to the reinforcing vertical ribs 25 of the holder body 21. It is formed to protrude. Furthermore, a reinforcing horizontal rib 35 is integrally formed at the center of the hanging portion 33 to protrude and cross each reinforcing vertical rib 34 . Further, on both sides of the end edge 32a of the horizontal portion 32 of the stopper body 31, an engagement arm has a rectangular hole-shaped (concave) engagement portion 36a that engages with the convex engaged portion 26 of the holder body 21. 36 are provided so as to protrude from the edge 32a. By engaging the engaging arm 36 of the stopper body 31 with the engaged portion 26 of the holder body 21, the stopper body 31 is connected to the holder body 21, and a terminal corresponding to the size of the relatively small battery 2 is formed. A holder 20 is now formed.

The stopper body 31' shown in FIGS. 8 and 9 is the other of the two types of stopper bodies 31, 31'. The other stopper main body 31' has a dimension b from the inner surface 33a of the hanging portion 33 that contacts the battery 2 to the edge 32a of the horizontal portion 32. Further, in the other stopper body 31', the dimension from the inner surface 33a of the hanging portion 33 to the center of the opening 22a of the holder body 21 (center O of the post insertion hole 12c of the battery terminal 10) is set to dimension B. . The other stopper main body 31' has the same structure as the one stopper main body 31 shown in FIG. That is, in this embodiment, two types of stopper bodies 31 and 31' whose dimensions from the battery contacting surface of the hanging part 33 to the edge 32a of the horizontal part 32 are different from dimensions a and b are combined into one type of holder body 21. Separate preparations are made for each. Then, by engaging and assembling the engaging arm 36 of one of the two types of stopper bodies 31, 31' with the engaged portion 26 of one type of holder body 21, the size of the battery can be adjusted. A terminal holder 20 corresponding to the above can be formed.

According to the first embodiment, the battery post connection unit 1 accommodates and holds the battery terminal 10 in the accommodating parts 22 and 23 of the holder body 21 of the terminal holder 20, and assembles the stopper body 31 to the holder body 21. The terminal holder 20 is assembled by attaching the terminal holder 20. When assembling the stopper body 31 to the holder body 21, the engaged portion 26 of the connecting portion 24 of the holder body 21 and the engagement arm 36 of the horizontal portion 32 of the stopper body 31 are engaged. When connecting to the battery post 3 of a small battery 2, as shown in FIGS. 4 and 7, the dimension from the inner surface 33a of the hanging part 33 to the edge 32a of the horizontal part 32 is the dimension a, and the dimension of the battery terminal 10 is A small stopper main body 31 having a dimension A from the center O of the post insertion hole 12c is used.

Next, a case will be described in which the battery post connection unit 1 in which the terminal holder 20 is formed by connecting the small stopper main body 31 to the holder main body 21 is connected to the battery post 3 of the small battery 2.

First, while the inner surface 33a of the hanging portion 33 of the stopper body 31 and the side surface 2c of the battery 2 are facing each other, the battery post 3 is inserted into the post insertion hole 12c of the battery terminal 10, and the fastening bolt 18 of the fastening mechanism 16 is rotated. , the fastening portion 12 is deformed by the fastening mechanism 16. Then, the diameter of the post insertion hole 12c of the battery terminal 10 is reduced, and the fastening part 12 tightens the battery post 3, so that the battery post connection unit 1 is connected to the battery post 3 of the small battery 2, as shown in FIG. be done.

When the battery post connection unit 1 is connected to the battery post 3, the inner surface 33a of the hanging portion 33 of the stopper body 31 and the side surface 2c of the battery 2 face each other, so that the battery post connection unit 1 is centered around the battery post 3. It is regulated to prevent it from rotating. Thereby, the electric wire 5 drawn out from the battery post connection unit 1 is regulated so as to be drawn out in a predetermined drawing direction.

In addition, when connecting to a battery post of a large battery (not shown), as shown in FIGS. 8 and 9, the dimension from the inner surface 33a of the hanging part 33 to the edge 32a of the horizontal part 32 is dimension b, A large stopper main body 31' having a dimension B from the center O of the post insertion hole 12c is used. The dimensional relationship between the small stopper main body 31 and the large stopper main body 31' is such that "dimension a<dimension b" and "dimension A<dimension B". The battery post connection unit 1 in which the terminal holder 20 is formed by connecting the large stopper body 31' to the holder body 21 is similar to the battery post connection unit 1 in which the small stopper body 31 is connected to the holder body 21. is positioned and connected to the battery post.

In this way, when connecting the battery post connection unit 1 to battery posts of batteries of different sizes, connect one of the two types of stopper bodies 31, 31' to one type of holder body 21. This can be handled by forming the terminal holder 20. In either case, the inner surface 33a of the hanging portion 33 of the stopper body 31, 31' faces the side surface 2c of the battery 2, which prevents the battery post connection unit 1 from rotating around the battery post 3. is regulated. Thereby, the electric wire 5 drawn out from the battery post connection unit 1 is regulated so as to be drawn out in a predetermined drawing direction. In other words, multiple types (two types in this embodiment) of terminal holders 20 can be formed according to the size of the battery, and batteries of different sizes can be easily and reliably connected to the battery post. .

FIG. 10 is a perspective view showing an example of a battery post connection unit according to a second embodiment of the present invention.

The battery post connection unit 1 of the second embodiment has the above-mentioned point that the edge 24b of the connecting portion 24 of the holder body 21 and the edge 32a of the horizontal portion 32 of each stopper body 31, 31' are bonded with an adhesive. This is different from the first embodiment. Note that the other configurations are similar to those of the first embodiment, so the same components are denoted by the same reference numerals and detailed explanations will be omitted. Further, although FIG. 10 shows only the large stopper main body 31', the small stopper main body 31 has a similar configuration.

In the battery post connection unit 1 of the second embodiment, a plurality of recesses 27 are provided in the edge 24b of the connecting portion 24 of the holder main body 21, respectively. Furthermore, a plurality of protrusions 37 that are fitted into the plurality of recesses 27 are provided on the edge 32a of the horizontal portion 32 of the stopper main body 31'. A plurality of convex portions 37 of each stopper body 31, 31' are fitted into a plurality of concave portions 27 of this one holder body 21, respectively. By interposing an adhesive between the abutting surfaces of the edge 24b of the connecting portion 24 and the edge 32a of the horizontal portion 32, each stopper body 31, 31' is attached to one type of holder body 21 separately. A terminal holder 20 corresponding to the size of the battery 2 is formed.

In the battery post connection unit 1 of the second embodiment, the end edge 24b of the connecting portion 24 of the holder main body 21 and the end edge 32a of the horizontal portion 32 of each stopper main body 31, 31' are bonded with an adhesive. The same actions and effects as in the first embodiment are achieved. Furthermore, by bonding the connecting portion 24 of the holder body 21 and the horizontal portion 32 of each stopper body 31, 31', even if an external force is applied to the battery post connection unit 1 during transportation or other handling, the engaged portion 26 will There is no risk that the engaging means of the engaging arm 36 will be damaged. Furthermore, by making the adhesive part have an uneven structure of the concave portion 27 and the convex portion 37, the area between the adhesive surfaces can be increased, and the fixing strength between the holder body 21 and each stopper body 31, 31' can be improved. Can be done.

FIG. 11 is a perspective view showing an example of a state before welding of the terminal holder of the battery post connection unit according to the third embodiment of the present invention. FIG. 12 is a perspective view showing an example of the state of the terminal holder after welding.

The battery post connection unit 1 of the third embodiment is characterized in that the edge 24b of the connecting portion 24 of the holder body 21 and the edge 32a of the horizontal portion 32 of each stopper body 31, 31' are welded using a welding jig 9. , which is different from that of the first embodiment. Note that the other configurations are similar to those of the first embodiment, so the same components are denoted by the same reference numerals and detailed explanations will be omitted. Further, although FIGS. 11 and 12 only show the large stopper main body 31', the small stopper main body 31 also has a similar configuration.

In the battery post connection unit 1 of the third embodiment, a plurality of recesses 27 are provided in the edge 24b of the connecting portion 24 of the holder main body 21, respectively. Furthermore, a plurality of welding protrusions 38 that are fitted into the plurality of recesses 27 are provided on the edge 32a of the horizontal portion 32 of the stopper main body 31'. A plurality of welding protrusions 38 of each stopper body 31, 31' are fitted into the plurality of recesses 27 of this one holder body 21, respectively. Then, by welding the contact surfaces of the end edge 24b of the connecting part 24 and the end edge 32a of the horizontal part 32 with the welding jig 9, each stopper main body 31, 31' is separately attached to one type of holder main body 21. A terminal holder 20 corresponding to the size of the battery 2 is formed.

In the battery post connection unit 1 of the third embodiment, the contact portion between the edge 24b of the connecting portion 24 of the holder body 21 and the edge 32a of the horizontal portion 32 of each stopper body 31, 31' is welded using a welding jig 9. By welding, the same actions and effects as in the first embodiment can be achieved. Furthermore, by welding the connecting portion 24 of the holder body 21 and the horizontal portion 32 of each stopper body 31, 31', even if an external force is applied to the battery post connection unit 1 during transportation or other handling, the engaged portion 26 will not be connected. There is no risk that the engaging means of the engaging arm 36 will be damaged. Furthermore, by making the welding part have an uneven structure of the recess 27 and the welding protrusion 38, the area between the welding surfaces can be increased, and the fixing strength between the holder body 21 and each stopper body 31, 31' is improved. be able to.

Although this embodiment has been described above, this embodiment is not limited to these, and various modifications can be made within the scope of the gist of this embodiment.

That is, according to the embodiment, two types of stopper bodies are prepared for one type of holder body, but three or more types of stopper bodies may be prepared for one type of holder body.

1 Battery post connection unit 2 Battery 2c Side surface 3 Battery post 10 Battery terminal 20 Terminal holder 21 Holder main body 22, 23 Accommodating part 24 Connecting part 24b Edge 26 Convex engaged part 27 Recessed part 31, 31' Stopper main body 32 Horizontal Part 32a Edge 33 Drooping part (stopper)
33a Inner surface 36 Engagement arm 36a Concave engagement portion 37 Convex portion 38 Welding projection

Claims (4)

a battery terminal connected to the battery post of the battery;
a terminal holder that holds the battery terminal and is placed on the battery;
Equipped with
The terminal holder is
a holder body having a housing portion that houses and holds the battery terminal;
a stopper having a horizontal portion connected to a connecting portion of the holder body; and a hanging portion serving as a stopper that extends downward from one end of the horizontal portion and comes into contact with a side surface of the battery to regulate the position of the holder body; The main body and
Equipped with
A plurality of types of stopper bodies having different dimensions from the inner surface of the hanging part that contacts the battery to the edge of the horizontal part are separately provided for one type of the holder body,
A battery post connection unit that forms a terminal holder corresponding to the size of the battery by assembling one stopper body of the plurality of types of stopper bodies to the one type of holder body. The holder body and each of the plurality of types of stopper bodies are made of resin,
Convex engaged portions are provided at both ends of the connecting portion of the holder main body, and
Engagement arms each having a concave engagement portion that engages with the engaged portion are provided on both sides of the edge of the horizontal portion of each of the stopper bodies;
By engaging the engaging arm of each stopper main body with the engaged portion of the holder main body, each stopper main body is separately assembled to the one type of holder main body, and the size of the battery is adjusted. The battery post connection unit according to claim 1, forming a terminal holder corresponding to the battery post connection unit. The holder body and each of the plurality of types of stopper bodies are made of resin,
A plurality of recesses are provided at the edges of the connecting portion of the holder body, respectively,
A plurality of convex portions that are fitted into the plurality of concave portions are provided on the edge of the horizontal portion of each of the stopper bodies, and
The plurality of convex portions of each of the stopper main bodies are respectively fitted into the plurality of recessed portions of the holder main body and are bonded to each other, so that each of the stopper main bodies is separately assembled to the one type of holder main body. , forming a terminal holder corresponding to the size of the battery, the battery post connection unit according to claim 1 . The holder body and each of the plurality of types of stopper bodies are made of resin,
A plurality of recesses are provided at the edges of the connecting portion of the holder body, respectively,
A plurality of welding protrusions that are fitted into the plurality of recesses are provided on the edge of the horizontal portion of each of the stopper bodies, respectively,
The plurality of welding protrusions of each of the stopper bodies are respectively fitted into the plurality of recesses of the holder body and welded, so that each of the stopper bodies is separately assembled to the one type of holder body. The battery post connection unit according to claim 1, wherein the battery post connection unit forms a terminal holder corresponding to the size of the battery.

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