JP3761143B2 - Battery terminal connection structure - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a battery terminal connection structure for connecting a positive or negative battery terminal connected to an end of an electric wire to a battery post having a corresponding polarity on a battery body.
[0002]
[Prior art]
As a conventional battery terminal connection structure, there is one disclosed in JP-A-4-220947. Referring to FIGS. 5 and 6, in the conventional battery 60, the bolt 65 inserted through the bolt insertion hole 64 of the cord terminal 63 is screwed into the bolt mounting hole 62 of the battery terminal 61 formed in a substantially prismatic shape. Thus, there is described what fixes the cord terminal 63 to the battery terminal 61.
[0003]
When the cord terminal 63 is connected to the battery terminal 61, the cord terminal 63 engages the flat plate portion 63a with the coupling surface 61a of the battery terminal 61 of the battery 60 and bends the edge of the flat plate portion 63a. The formed pair of projecting pieces 63 b are engaged with the two side surfaces 61 b of the battery terminal 61, respectively.
Further, the bolt mounting hole 62 of the battery terminal 61 and the bolt insertion hole 64 of the cord terminal 63 are provided at positions eccentric from the center of the coupling surface 61 a of the battery terminal 61.
[0004]
[Problems to be solved by the invention]
In the conventional battery terminal connection structure described above, the engagement of each protruding piece 63b of the cord terminal 63 with each side surface 61b of the battery terminal 61, and the bolt mounting hole 62 and bolt insertion hole with respect to the center of the coupling surface 61a of the battery terminal 61. The connecting direction of the cord terminal 63 to the battery terminal 61 is regulated by the eccentricity of 64. Accordingly, it is possible to prevent erroneous connection due to a mistake in the connection direction.
[0005]
However, there is a problem in that the polarity of the cord terminal 63 is not dealt with at all, and erroneous connection due to the polarity difference between the battery terminal 61 and the cord terminal 63 cannot be prevented.
[0006]
Further, the work of attaching the cord terminal 63 to the battery terminal 61 is complicated, and it is difficult to shorten the work time.
That is, when attaching the cord terminal 63, the operator places the position of the bolt insertion hole 64 of the cord terminal 63 in the state where the flat plate portion 63 a of the cord terminal 63 is engaged with the coupling surface 61 a of the battery terminal 61. Align with the bolt mounting hole 62 of the terminal 61. While holding this state with one hand, it is necessary to screw the bolt 65 into the bolt mounting hole 62 through the bolt insertion hole 64 with the other hand. Therefore, the operator is forced to perform complicated work using both hands, and a lot of work time is required.
[0007]
Further, by screwing the bolt 65 inserted through the bolt insertion hole 64 of the cord terminal 63 into the bolt mounting hole 62 of the battery terminal 61, a sufficient effect as the battery 60 is exhibited.
[0008]
In addition, as a battery that is widely used, a battery post to which a battery terminal is connected is erected in advance on the battery body, and the battery terminal is attached to each battery post by a fixing nut that is screwed to the battery post. The structure to fix is mentioned.
The conventional battery terminal connection structure described above cannot be directly applied to such a configuration. Moreover, even if it can be applied, a remarkable effect cannot be expected in improving workability.
[0009]
An object of the present invention is to solve the above problems, and to provide a battery terminal connection structure that can reliably prevent erroneous connection due to a difference in polarity and ensure good workability. Yes.
[0010]
[Means for Solving the Problems]
The above-described problem relating to the present invention is a battery terminal connection structure in which positive or negative battery terminals respectively connected to the end portions of the electric wires are connected to the corresponding battery posts of the battery body.
The battery body has a positive pole and a negative pole battery post provided in a housing space surrounded by a wall portion formed on an outer wall of the battery body,
A dedicated required shape that is provided on the outer wall so that the housing space of each battery post communicates with the outside, and only the battery terminal corresponding to each battery post having a positive pole or a negative pole can be inserted. And at least a pair of terminal openings having
Each of the battery terminals is formed in a required shape that can be inserted into the corresponding terminal opening, and is fitted into the battery post at the distal end in the insertion direction of the terminal opening to obtain an electrical connection. This can be solved by a battery terminal connection structure characterized in that a connection groove is provided.
[0011]
In the battery terminal connection structure configured as described above, the positive or negative battery terminal connected to the end of the electric wire is accommodated in the battery post housing space of the corresponding polarity from the corresponding terminal opening on the outer wall of the battery body. And the battery post is fitted into the connecting groove at the tip thereof to obtain an electrical connection.
[0012]
At this time, even if the battery terminal is erroneously inserted into the terminal opening of the polarity that does not correspond, it cannot be inserted due to the difference in shape. Therefore, it is not possible to connect the battery terminal to the battery post by mistake in polarity.
In addition, each battery terminal has almost no fear of dropping off during operation when it is inserted into the corresponding terminal opening. Therefore, good workability is ensured.
[0013]
Further, in the connection structure of the battery terminal, preferably, in the vicinity of each battery post of the battery body, a locked portion for locking each battery terminal is provided,
The battery is characterized in that a locking claw that is locked to the locked portion when the battery terminal is fitted into the battery post is provided at the tip of each battery terminal. It can be solved by the terminal connection structure.
[0014]
In the battery terminal connection structure having the above-described configuration, the engaging claw provided at the tip of each battery terminal is inserted in the vicinity of each battery post when the battery terminal is inserted into the corresponding terminal opening of the battery body. It is latched by the to-be-latched part provided in. Therefore, problems such as the battery terminal coming out of the terminal opening during the subsequent work can be reliably prevented, and good workability can be obtained.
[0015]
Further, in the battery terminal connection structure, preferably, each battery terminal is provided with a rib for preventing rotation along the insertion direction into the terminal opening,
This can be solved by a battery terminal connection structure in which each terminal opening of the battery body is provided with a rib groove into which the rotation preventing rib is inserted.
[0016]
In the battery terminal connection structure configured as described above, when the battery terminals of each electrode are inserted into the receiving spaces of the battery posts of each electrode from the corresponding terminal openings on the outer wall of the battery body, An anti-rotation rib projecting along the direction of insertion into the opening is fitted into the rib groove of the terminal opening. Therefore, inadvertent rotation or the like of each battery terminal accompanying the work, for example, in a horizontal plane is prevented, and good workability is obtained.
[0017]
In the battery terminal connection structure, preferably, each of the polarities of the battery posts is disposed in the vicinity of a corner of the battery body, and each terminal opening corresponding to the battery post has the corner. It is provided on both sides of the outer wall that intersects with each other,
Connection of battery terminals, wherein the battery terminals of each polarity can be connected to the battery posts of the corresponding polarity selectively through any one of the terminal openings provided on the both surfaces. Can be solved by structure.
[0018]
In the battery terminal connection structure configured as described above, the battery terminal of each polarity is selected by appropriately selecting one of two terminal openings provided on both sides of the outer wall that intersect across the corner of the battery body. Connected to the corresponding battery post.
In other words, each polarity battery terminal is connected to the corresponding battery post via the terminal opening from either of the two orthogonal surfaces of the outer wall of the battery body provided with the terminal opening. Is possible. Therefore, it is possible to obtain good workability and a high degree of freedom such as a battery layout in the mounted vehicle.
[0019]
In the battery terminal connection structure, the battery terminal connection is preferably characterized in that tip portions of the battery posts of each polarity are provided so as not to protrude outward from the wall portion of the battery body. Can be solved by structure.
[0020]
In the battery terminal connection structure configured as described above, the tip of each polarity battery post does not protrude outward from the wall of the battery body. Therefore, the battery post can be protected from short circuit and damage due to inadvertent contact of a tool or the like.
[0021]
In the battery terminal connection structure, preferably, each battery post of each polarity is inserted into the corresponding terminal opening and the battery terminal fitted into the battery post is connected to the battery post. A screwing member for fixing by screwing is provided,
The wall portion of the battery body is provided with a working opening for screwing work of the screwing members,
Each of the screwing members is integrally provided with an opening closing member that closes the working opening as the battery post is screwed into the battery post. .
[0022]
In the battery terminal connection structure configured as described above, each battery terminal is inserted into the corresponding terminal opening and the battery post is fitted into the connection groove, and the screwing member is screwed into the battery post. It is fixed by joining. As the screwing member is screwed onto the battery post, the opening closing member provided integrally with the screwing member closes the work opening. Therefore, high waterproofness and dustproofness are ensured by closing the work opening after work.
[0023]
Further, in the battery terminal connection structure, preferably, each opening closing member can be manually operated from the outside, and a tool mounting portion to which a required tool for screwing the screwing member can be mounted is provided. This can be solved by the battery terminal connection structure.
[0024]
In the battery terminal connection structure configured as described above, each battery terminal is inserted into the corresponding terminal opening and the battery post is fitted into the connection groove, and the screw member is screwed into the battery post. To be fixed.
[0025]
That is, the screwing member can be operated by rotating the integrally provided opening closing member from the outside by manual operation or by operating it through a required tool mounted on the tool mounting portion of the opening closing member. Screwed onto the post. As the screwing member is screwed onto the battery post, the opening closing member closes the work opening. Therefore, ensuring good screwing workability of the screwing member and ensuring high waterproofness and dustproofness by closing the work opening after work are compatible.
[0026]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, a battery terminal connection structure according to a first embodiment of the present invention will be described in detail with reference to FIGS. 1 and 2. FIG. 1 is a perspective view of a main part showing a battery terminal connection structure of the present embodiment, and FIG. 2 is a cross-sectional view showing a locked portion and a locking claw in FIG.
[0027]
As shown in FIG. 1, the battery terminal connection structure of the present embodiment is such that the positive or negative battery terminals 40 and 41 respectively connected to the wire ends 10 are connected to the battery posts 21 of the corresponding polarity of the battery body 20. , 22 and fixed by tightening a fixing nut 23 screwed into the battery posts 21, 22.
[0028]
The corners 24 and 25 (hereinafter referred to as the left corner 24 and the right corner 25 respectively) that form a pair on the left and right of the upper part of the battery body 20 in FIG. 1 are formed on the outer walls 26, 27, and 28 of the battery body 20. A battery post accommodation space 30 (hereinafter referred to as an accommodation space 30) surrounded by the integrally formed wall portion 29 is formed.
In each housing space 30, positive and negative battery posts 21, 22 are provided so that the tip (upper end in FIG. 1) does not protrude from the upper surface of the wall 29 of the battery body 20.
In addition, a substantially square-shaped locked portion 31 protrudes from the periphery of the base end portion in a step shape at the base end portions of the battery posts 21 and 22 in each housing space 30. Each of the locked portions 31 locks a locking claw 47 of the battery terminals 40 and 41 described later.
[0029]
In the vicinity of the left corner 24 and the right corner 25 formed by the outer walls 26, 27, 28 of the battery body 20, terminal openings 32, 33 that allow the storage space 30 to communicate with the outside are provided.
[0030]
The terminal openings 32 and 33 are provided at two locations for each storage space 30 between the outer walls 26, 27 and 28 and the wall portion 29 of the battery body 20. Each of the terminal openings 32 and 33 is formed in a required shape dedicated to the positive pole or the negative pole, and only the battery terminals 40 and 41 having the corresponding polarities can be inserted.
[0031]
That is, each terminal opening 32 (hereinafter referred to as the left terminal opening 32) provided in the left corner 24 of the battery body 20 has two outer walls 26 orthogonal to each other with the left corner 24 of the battery body 20 interposed therebetween. 27 is open. The left terminal opening 32 is formed with a rib groove 32a for fitting a rotation preventing rib 43, which will be described later, below the end (lower right end in FIG. 1). Only the terminal 40 can be inserted.
In addition, each terminal opening 33 (hereinafter referred to as a right terminal opening 33) provided in the right corner 25 of the battery body 20 has two outer walls 26 orthogonal to each other across the right corner 25 of the battery body 20. 28 is open. In addition, the right terminal opening 33 is formed with a rib groove 33a for fitting a rotation preventing rib 45, which will be described later, below the end (lower left end in FIG. 1). Only the terminal 41 can be inserted.
[0032]
A work opening 34 is provided on the upper surface of the wall 29 of the battery body 20. That is, one working opening 34 is opened in each accommodation space 30 and the upper surface of the wall 29 of the battery body 20 is rectangular in plan view. Each of the work openings 34 is used for screwing the fixing nut 23 to the battery posts 21 and 22. For example, a tool for rotating the fixing nut 23 for screwing or the like (not shown) Is inserted.
[0033]
Further, each of the battery terminals 40 and 41 is formed in a required shape that can be inserted into the corresponding terminal openings 32 and 33.
[0034]
That is, for example, a positive electrode battery terminal 40 on the left side in FIG. 1 (hereinafter referred to as a positive electrode battery terminal 40) is provided on the lower surface of the right edge of the flat plate portion 42 in FIG. The rib 43 for rotation prevention of the shape and dimension corresponding to is projected along the insertion direction. As a result, the positive battery terminal 40 can be inserted only into the left terminal opening 32, cannot be inserted into the right terminal opening 33, and the horizontal plane of the battery terminal 40 as the fixing nut 23 rotates. Inadvertent rotation or the like is prevented.
[0035]
Further, for example, a negative battery terminal 41 on the right side in FIG. 1 (hereinafter referred to as negative battery terminal 41) is provided on the lower surface of the left edge of the flat plate portion 44 in FIG. The rib 45 for rotation prevention of the shape and dimension corresponding to is projected along the insertion direction. As a result, the negative battery terminal 41 can only be inserted into the right terminal opening 33, cannot be inserted into the left terminal opening 32, and the horizontal plane of the battery terminal 41 as the fixing nut 23 rotates. Inadvertent rotation or the like is prevented.
[0036]
Further, at the tips of the flat plate portions 42 and 44 of the battery terminals 40 and 41, the insertion direction of the battery terminals 40 and 41 into the terminal openings 32 and 33, connection grooves 46 having a U-shape in plan view, and A locking claw 47 is provided.
[0037]
The connection groove 46 is opened on the insertion direction side of the battery terminals 40 and 41 into the terminal openings 32 and 33, and the battery terminals 40 and 41 are inserted into the corresponding terminal openings 32 and 33. With the insertion, the battery posts 21 and 22 are fitted to obtain an electrical connection.
The latching claws 47 project from the lower surfaces of the front ends of the flat plate portions 42 and 44 of the battery terminals 40 and 41, and the battery terminals 40 and 41 are inserted into the corresponding terminal openings 32 and 33, respectively. As a result, it is locked to the locked portion 31 of the battery body 20 (see FIG. 2).
[0038]
Further, each of the battery terminals 40 and 41 has two surfaces (outer walls 26, 27 or 26, 28 intersecting each other with the left corner 24 and the right corner 25 of the outer walls 26, 27, 28 of the battery body 20 sandwiched therebetween, respectively. ) Can be selected by appropriately selecting any one of the terminal openings 32 and 33 provided in (). Accordingly, the battery terminals 40 and 41 can be connected to the battery posts 21 and 22 having the corresponding polarities from any one of the two directions corresponding to the installation position of the battery body 20.
The battery terminals 40 and 41 are inserted into the corresponding terminal openings 32 and 33, and the battery posts 21 and 22 are fitted in the connection grooves 46. The battery posts 21 and 22 are fixed to the battery posts 21 and 22 by fixing nuts 23 screwed into the battery posts 21 and 22.
[0039]
Next, the connection procedure of the battery terminal connection structure of this embodiment will be described. First, as shown in FIG. 1, when connecting each battery terminal 40, 41 to the corresponding battery post 21, 22 of the battery body 20, the positive electrode battery terminal 40 is inserted into the accommodation space 30 from the left terminal opening 32. To be inserted. With this insertion, the battery post 21 is fitted into the connection groove 46 of the battery terminal 40 to be electrically connected, and the locking claw 47 of the battery terminal 40 is pulled to the locked portion 31. It is locked so as to be hung (see FIG. 2).
[0040]
At this time, even if the positive battery terminal 40 is erroneously inserted into the right terminal opening 33, it cannot be inserted due to the difference in shape. Therefore, the battery terminal 40 cannot be connected to the battery post 22 with a wrong polarity.
Further, when the positive electrode battery terminal 40 is inserted into the left terminal opening 32, there is no fear of dropping off and good workability can be achieved.
[0041]
Next, a fastening tool is put on the fixing nut 23 screwed in advance with the battery post 21 through the work opening 34 of the battery body 20, and the fixing nut 23 is rotated and tightened. Thereby, the battery terminal 40 can be reliably fixed to the battery post 21.
[0042]
At this time, since the locking claw 47 of the battery terminal 40 is locked to the locked portion 31, the battery terminal 40 may fall out of the left terminal opening 32 before being fixed by the fixing nut 23. Defects can be reliably prevented.
Further, the rotation prevention rib 43 of the battery terminal 40 is fitted into the rib groove 32a of the left terminal opening 32, whereby the battery terminal 40 is inadvertently rotated in the horizontal plane as the fixing nut 23 rotates. Etc. are prevented.
Therefore, the operator does not need to hold the battery terminal 40 with one hand, and good workability can be obtained.
[0043]
Note that the negative electrode battery terminal 41 also has a negative polarity through the right terminal opening 33 without mistaking the polarity and with good workability, as in the case of the positive electrode battery terminal 40 described above. It can be fixed to the battery post 22 of the pole.
[0044]
Next, a battery terminal connection structure according to a second embodiment of the present invention will be described with reference to FIGS. FIG. 3 is a perspective view of a main part showing a connection structure of the battery terminal of the present embodiment, and FIG. 4 is a cross-sectional view of the main part in FIG.
[0045]
As shown in FIGS. 3 and 4, the battery terminal connection structure of the present embodiment is provided by fitting the fixing nut 23 integrally on the virtual central axis of the opening closing knob 50 made of synthetic resin or the like or by insert molding. It has been. The opening closing knob 50 can be rotated manually, and closes the working opening 34 of the battery body 20 as the fixing nut 23 is screwed and tightened to the battery posts 21 and 22.
[0046]
That is, in the opening closing knob 50, in a state where the fixing nut 23 is tightened (not shown), the O-ring 51 (or the lower surface of the opening closing knob 50) provided on the lower surface in FIG. The work opening 34 is closed by abutting on the upper surface of the work. Thereby, the favorable waterproofness and dustproofness of the opening 34 for work are securable.
Further, on the virtual central axis of the fixing nut 23 in the opening closing knob 50, a tool mounting portion 52 formed in a hexagonal nut shape is projected. The tool mounting portion 52 is for using a tightening tool such as a hexagon wrench for rotating the fixing nut 23 as necessary.
[0047]
Further, in the present embodiment, the shapes and numbers of the terminal openings 32 and 33, the shapes of the work openings 34, and the shapes of the battery terminals 40 and 41 are different from those of the first embodiment.
[0048]
That is, a total of two terminal openings 32 and 33 are provided for each accommodation space 30. The left terminal opening 32 has a rib groove 32a extending to the right end in the longitudinal direction (above the right end in FIG. 3), and the right terminal opening 33 has a rib extension extending to the left end in the longitudinal direction (above the left end in FIG. 3). A groove 33a is provided. Each work opening 34 is formed in a substantially circular shape in plan view.
[0049]
Further, the battery terminal 40 of the positive electrode has a rib 43 for rotation prevention having a shape and size corresponding to the rib groove 32a of the opening 32 for the left terminal on the upper surface of the right edge portion in FIG. Yes. The negative electrode battery terminal 41 is provided with an anti-rotation rib 45 having a shape and size corresponding to the rib groove 33a of the right terminal opening 33 on the upper surface of the left edge of the flat plate portion 44 in FIG. Other configurations and operations are the same as those in the first embodiment.
[0050]
As described above, according to the battery terminal connection structure of each of the above embodiments, the terminal openings 32 and 33 that open between the outer wall 26, 27, and 28 of the battery body 20 and the wall portion 29 correspond to each other. Only the battery terminals 40 and 41 having the polarities can be inserted, and each battery terminal 40 and 41 is formed in a required shape that can be inserted into the corresponding terminal openings 32 and 33. Therefore, it is possible to reliably prevent erroneous connection due to the difference in polarity of the battery terminals 40 and 41 to the battery posts 21 and 22.
[0051]
In addition, as the battery terminals 40 and 41 are inserted into the corresponding terminal openings 32 and 33 of the battery body 20, the locking claws 47 provided at the tips of the battery terminals 40 and 41 in the fitting direction are provided. Is locked to the locked portion 31 of the battery body 20. Accordingly, the battery terminals 40 and 41 do not come out of the terminal openings 32 and 33 before being fixed by the fixing nut 23, and the operator holds the battery terminals 40 and 41 in screwing the fixing nut 23. There is no need to keep it.
[0052]
Further, since the anti-rotation ribs 43 and 45 of the battery terminals 40 and 41 are fitted into the rib grooves 32a and 33a of the terminal openings 32 and 33, the battery terminal is rotated along with the rotation of the fixing nut 23 by screwing. Inadvertent rotation or the like in the horizontal planes 40 and 41 can be reliably prevented. Therefore, it is possible to ensure good workability when the battery terminals 40 and 41 are connected.
[0053]
In addition, since the battery posts 21 and 22 of each polarity are provided so that the tip portions thereof do not protrude outward from the wall portion 29 of the battery main body 20, the battery is prevented from being short-circuited or damaged due to careless contact with a tool or the like. The posts 21 and 22 can be reliably protected.
[0054]
Further, according to the first embodiment, the terminal openings 32 and 33 corresponding to the battery terminals 40 and 41 of each polarity sandwich the corner portions 24 and 25 in the outer walls 26, 27 and 28 of the battery body 20. It is provided on two intersecting surfaces.
The battery terminal 40 (or 41) of each polarity is on two surfaces (outer walls 26, 27 or 26, 28) intersecting with the corners 24 (or 25) of the outer walls 26, 27, 28 of the battery body 20 sandwiched therebetween. It can be connected to the battery posts 21 and 22 of the corresponding polarity selectively through one of the provided terminal openings 32 and 32 (or 33 and 33).
Therefore, it is possible to obtain good workability and a high degree of freedom in which the connection direction of the battery terminal can be selected corresponding to the battery layout or the like in the mounted vehicle or the like.
[0055]
Further, according to the second embodiment, the fixing nut 23 for fixing the battery terminals 40 and 41 to the battery posts 21 and 22 by screwing them to the battery posts 21 and 22 for working. An opening closing knob 50 for closing the opening 34 is integrally provided. Therefore, it is possible to ensure both good screwing workability of the fixing nut 23 through the work opening 34 and high waterproofness and dustproofness by closing the work opening 34 after work.
[0056]
Further, when the fixing nut 23 is screwed onto the battery posts 21 and 22, the opening closing knob 50 can be directly manually operated and rotated to tighten the fixing nut 23, and the tool of the opening closing knob 50 can be tightened. A required tool can be fitted into the mounting portion 52 and the fixing nut 23 can be tightened via the tool.
[0057]
In addition, in the battery structure of each embodiment described above, the battery terminals 40 and 41 are fixed to the battery posts 21 and 22 by the fixing nuts 23 screwed into the battery posts 21 and 22 erected on the battery body 20. It can be applied to battery structures having various configurations, and can achieve a remarkable effect in terms of versatility.
[0058]
【The invention's effect】
As described above, according to the battery terminal connection structure of the present invention, the following remarkable effects can be obtained.
In other words, according to the first aspect of the present invention, the battery body has positive and negative battery posts provided in the housing space surrounded by the wall portion formed on the outer wall thereof, and the outer wall on the outer wall. An opening for at least a pair of terminals that is provided and has a dedicated required shape so that only the battery terminal corresponding to each positive or negative battery post can be inserted and communicated with the housing space of each battery post to the outside Each battery terminal is formed in a required shape that can be inserted into the corresponding terminal opening, and is fitted into the battery post at the front end in the insertion direction to the terminal opening to obtain electrical connection. A connecting groove is provided.
[0059]
Therefore, the positive or negative battery terminals connected to the ends of the electric wires are respectively inserted into the receiving spaces of the corresponding battery posts from the corresponding terminal openings on the outer wall of the battery body, A battery post is fitted into the connecting groove. At this time, even if the battery terminal is erroneously inserted into the terminal opening of the polarity that does not correspond, it cannot be inserted due to the difference in shape. In addition, each battery terminal is hardly worried about dropping out during operation when it is inserted into the corresponding terminal opening. Therefore, only the battery terminal of the corresponding polarity can be inserted into the terminal opening, so that erroneous connection due to the difference in polarity can be surely prevented and good workability can be obtained.
[0060]
According to the second aspect of the present invention, a locked portion for locking each battery terminal is provided in the vicinity of each battery post of the battery body, and each battery terminal has an opening from each terminal opening. A locking claw that is locked to the locked portion is provided in accordance with the insertion into the battery post.
Therefore, as each battery terminal is inserted into the corresponding terminal opening of the battery body, the locking claw provided at the tip of each battery terminal is attached to the locked portion provided near each battery post. Locked. Therefore, problems such as the battery terminal falling out of the terminal opening during the work are reliably prevented, and good workability can be obtained.
[0061]
According to the invention described in claim 3, each battery terminal is provided with a rotation-preventing rib along the direction of insertion into the terminal opening, and each terminal opening of the battery body has A rib groove for inserting the rotation preventing rib is provided.
Accordingly, when the battery terminals of each electrode are inserted into the receiving spaces of the battery posts of the respective electrodes from the corresponding terminal openings on the outer wall of the battery body, the insertion direction of each battery terminal into the terminal opening is The protruding anti-rotation rib is fitted into the rib groove of the terminal opening. Therefore, careless rotation of each battery terminal accompanying the work is prevented, and good workability can be obtained.
[0062]
According to a fourth aspect of the present invention, the battery posts of the respective polarities are arranged in the vicinity of the corners of the battery body, and the terminal openings corresponding to the battery posts are arranged on the outer sides across the corners. Provided on both sides of the wall, each polarity battery terminal can be connected to the corresponding polarity battery post via either one of the terminal openings provided on both sides.
Therefore, for each polarity battery terminal, one of the two terminal openings provided on both sides of the outer wall intersecting with the corners of the battery body is appropriately selected, and the battery terminal with the corresponding polarity is selected. Connected. Therefore, it is possible to obtain good workability and a high degree of freedom such as a battery layout in the mounted vehicle.
[0063]
According to the fifth aspect of the present invention, the tip portion of each polarity battery post is provided so as not to protrude outward from the wall portion of the battery body.
Therefore, the battery post can be protected from short circuit and damage due to inadvertent contact of a tool or the like.
[0064]
According to the invention of claim 6, each battery terminal fitted into the battery post and fitted into the corresponding terminal opening is fixed to the battery post of each polarity by screwing to the battery post. The battery body wall is provided with working openings for the screwing operation of each screwing member, and each screwing member is screwed into the battery post. An opening closing member for closing the working opening is integrally provided.
Accordingly, each battery terminal is fixed by being screwed into the battery post in a state where the battery terminal is fitted into the corresponding terminal opening and the battery post is fitted in the connection groove. As the screwing member is screwed onto the battery post, the opening closing member provided integrally with the screwing member closes the work opening. Therefore, high waterproofness and dustproofness can be obtained by closing the work opening after work.
[0065]
Furthermore, according to the seventh aspect of the present invention, each opening closing member can be manually operated from the outside, and a tool mounting portion to which a required tool for screwing the screwing member can be mounted is provided. Yes.
Therefore, each battery terminal is manually inserted from the outside with an opening closing member integrally provided with a screwing member in a state in which the battery post is fitted in the connection groove by being inserted into the corresponding terminal opening. Or screwed into the battery post by operating through a required tool mounted on the tool mounting portion of the opening closing member. Therefore, good screwing workability of the screwing member can be obtained, and high waterproofness and dustproofness can be ensured by closing the work opening after the work.
[Brief description of the drawings]
FIG. 1 is a perspective view showing a main part of a battery terminal connection structure according to a first embodiment of the present invention;
2 is a cross-sectional view of a main part showing a locked portion and a locking claw of the battery terminal connection structure in FIG. 1;
FIG. 3 is a perspective view of relevant parts showing a battery terminal connection structure according to a second embodiment of the present invention;
4 is a cross-sectional view of the main part in FIG. 3. FIG.
FIG. 5 is a plan view showing a conventional battery terminal connection structure;
6 is a perspective view of a main part in FIG. 5. FIG.
[Explanation of symbols]
10 Wire end
20 Battery body
21,22 Battery post
23 Threaded member (fixing nut)
24 corner (left corner)
25 corner (right corner)
26, 27, 28 Outer wall
29 Wall
30 accommodation space
31 Locked part
32,33 Terminal opening
32a, 33a Rib groove
34 Work opening
40,41 Battery terminal
42,44 flat plate
43, 45 Anti-rotation rib
46 Groove for connection
47 Claw
50 Opening closing member (opening closing knob)
51 O-ring
52 Tool mounting part

Claims (7)

In the battery terminal connection structure in which the positive or negative battery terminal connected to each end of the electric wire is connected to the corresponding battery post of the battery body,
The battery body has a positive pole and a negative pole battery post provided in a housing space surrounded by a wall portion formed on an outer wall of the battery body,
A dedicated required shape that is provided on the outer wall so that the housing space of each battery post communicates with the outside, and only the battery terminal corresponding to each battery post having a positive pole or a negative pole can be inserted. And at least a pair of terminal openings having
Each of the battery terminals is formed in a required shape that can be inserted into the corresponding terminal opening, and is fitted into the battery post at the distal end in the insertion direction of the terminal opening to obtain an electrical connection. A battery terminal connection structure comprising a connection groove. In the vicinity of each battery post of the battery body, a locked portion for locking each battery terminal is provided,
The front end of each battery terminal is provided with a locking claw that is locked to the locked portion when the battery terminal is fitted into the battery post. Item 1. A battery terminal connection structure according to Item 1. Each battery terminal is provided with a rib for preventing rotation along the insertion direction into the terminal opening,
The battery terminal connection structure according to claim 1 or 2, wherein a rib groove for inserting the rotation preventing rib is provided in each terminal opening of the battery body. The battery posts of the respective polarities are arranged in the vicinity of the corners of the battery body, and the terminal openings corresponding to the battery posts are provided on both surfaces of the outer wall that intersect with the corners. And
The battery terminal of each polarity can be connected to the battery post of a corresponding polarity selectively through one of the terminal openings provided on the both surfaces. The battery terminal connection structure according to 2 or 3. 5. The battery terminal connection structure according to claim 1, wherein tip portions of the battery posts of the respective polarities are provided so as not to protrude outward from the wall portion of the battery body. . The battery posts of the respective polarities are provided with screwing members that are fitted into the corresponding terminal openings and are fixed to the battery posts by screwing the battery terminals. The wall portion of the battery body is provided with work openings for screwing work of the screw members,
The said screwing member is integrally provided with the opening obstruction | occlusion member which obstruct | occludes the said work opening with the screwing to the said battery post. The battery terminal connection structure according to 4 or 5. The said opening obstruction | occlusion member can be manually operated from the outside, The tool mounting part which can mount | wear with the required tool for screwing the said screwing member is provided. Battery terminal connection structure.

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