JP3761145B2 - 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]
The present invention has been made to solve the above-described problems, and can reliably prevent erroneous connection due to a difference in polarity, can ensure good workability, and can further reduce the cost. The purpose is to provide a terminal connection structure.
[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 includes positive and negative battery posts; and a post protective cover that is detachably provided separately from the battery body and covers each of the battery posts.
Each of the post protective covers includes terminal openings each formed in a required shape dedicated to the positive electrode or the negative electrode so that only the battery terminal of the corresponding polarity can be inserted.
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 having the above-described configuration, the positive electrode or negative electrode battery terminal respectively connected to the end of the electric wire is inserted into the terminal opening of the corresponding post protection cover, and the connection groove at the tip thereof. A battery post is fitted inside to obtain an electrical connection.
[0012]
At this time, even if the battery terminal is erroneously inserted into a terminal opening that does not correspond, it cannot be inserted due to the difference in shape. Therefore, the battery terminal is not connected to the battery post by mistake in polarity.
In addition, each battery terminal is hardly worried about dropping off during operation when it is inserted into the corresponding terminal opening. Therefore, good workability can be obtained.
[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, and at the tip of each battery terminal, Connection of a battery terminal, characterized in that a locking claw that is locked to the locked portion is provided when the post protection cover is inserted into the corresponding battery post from the corresponding opening for each terminal. Can be solved by structure.
[0014]
In the battery terminal connection structure configured as described above, with the insertion of each battery terminal into the corresponding opening for each terminal of the post protection cover, a locking claw provided at the leading end of each battery terminal in the fitting direction, The battery body is locked to a locked portion provided in the vicinity of each battery post.
Accordingly, problems such as the battery terminal falling out of the terminal opening during the 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 rotation prevention rib projecting along a direction of insertion into the terminal opening, and for each terminal of the battery body. This can be solved by a battery terminal connection structure, wherein the opening 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 respectively inserted and inserted into the terminal openings of the corresponding post protection covers, the battery terminals protruded along the insertion direction of the respective terminal openings. The rotation prevention rib is fitted into the rib groove of the terminal opening. Accordingly, for example, inadvertent rotation of each battery terminal during work, for example, in a horizontal plane can be reliably prevented, and good workability can be obtained.
[0017]
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,
Each post protective cover is provided with a working opening for screwing the screwing member, and the screwing member is provided with the working opening along with the screwing to the battery post. This can be solved by a battery terminal connection structure in which the opening closing member to be closed is provided integrally.
[0018]
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 doing. 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.
[0019]
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.
[0020]
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 doing.
[0021]
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.
[0022]
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 is a perspective view of a main part showing a connection structure of a battery terminal of the present embodiment, FIG. 2 is a perspective view of a main part showing a recess and a battery post in FIG. 1, and FIG. 3 is a locked part and a lock in FIG. It is sectional drawing which shows a nail | claw.
[0023]
As shown in FIG. 1, the positive or negative battery terminals 40 and 41 respectively connected to the electric wire end 10 are connected to the corresponding battery posts 21 and 22 of the battery body 20, respectively. It is fixed by tightening a fixing nut 23 screwed into the posts 21 and 22.
[0024]
Further, a pair of left and right recesses 26 in FIG. 1 are formed at the left and right corners 24 and 25 (hereinafter referred to as the left corner 24 and the right corner 25, respectively) of the battery body 20 in FIG. Yes.
[0025]
As shown in FIG. 2, positive and negative battery posts 21 and 22 are provided in the respective recesses 26 so that the front end portions (upper end portions in FIG. 1) do not protrude from the upper surface of the battery body 20 in FIG. 1. Provided.
Further, at the base end portions of the battery posts 21 and 22 in the respective recessed portions 26, a locked portion 27 having a substantially square shape in a plan view is provided so as to protrude in a step shape from the periphery. Each of the locked portions 27 locks a locking claw 47 of the battery terminals 40 and 41 described later.
[0026]
Further, post protection covers 30 and 31 covering the battery posts 21 and 22 are provided in the recesses 26 so as to be detachable from the battery body 20.
Each of the post protective covers 30, 31 has two side surfaces 30b, 31b erected substantially at right angles from the edges of the two sides of the substantially square upper surfaces 30a, 31a, and is made of an insulating material such as a synthetic resin. It is formed by.
In addition, the post protection covers 30 and 31 are fitted in the recesses 26 so that the upper surfaces 30a and 31a are substantially flush with the upper surface of the battery body in FIG. 1, and the side surfaces 30b and 31b are battery cells. The dimensions are set so as to be substantially flush with each outer wall of the main body.
[0027]
Each of the post protection covers 30 and 31 is provided with terminal openings 32 and 33.
[0028]
The terminal openings 32 and 33 are provided on the one side surfaces 30 b and 31 b of the post protection covers 30 and 31, respectively. 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.
[0029]
That is, the terminal opening 32 provided in the post protective cover 30 on the left side in FIG. 1 has a rib groove 32a into which a rotation preventing rib 43, which will be described later, is fitted, toward the upper side of the right end in the longitudinal direction. For example, only the positive battery terminal 40 can be inserted.
Further, the terminal opening 33 provided in the post protective cover 31 on the right side in FIG. 1 has a rib groove 33a into which the anti-rotation rib 45 is fitted toward the upper left end in the longitudinal direction. For example, only the negative battery terminal 41 can be inserted.
[0030]
In addition, work openings 34 are provided in the upper surfaces 30a and 31a of the post protection covers 30 and 31, respectively. That is, the work openings 34 are formed in a substantially circular shape in plan view, two in total, one for each of the post protection covers 30 and 31.
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.
[0031]
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.
[0032]
That is, for example, the positive electrode battery terminal 40 on the left side in FIG. 1 has a shape and size corresponding to the rib groove 32a of the terminal opening 32 of the post protection cover 30 on the upper surface of the right edge portion in FIG. Anti-rotation ribs 43 project along the insertion direction. As a result, the positive battery terminal 40 can be inserted only into the terminal opening 32 of the post protection cover 30 and cannot be inserted into the terminal opening 33 of the post protection cover 31. Inadvertent rotation or the like in the horizontal plane of the battery terminal 40 associated with rotation of the battery terminal can be reliably prevented.
[0033]
Further, for example, the negative battery terminal 41 on the right side in FIG. 1 has a shape and size corresponding to the rib groove 33a of the terminal opening 33 of the post protection cover 31 on the upper surface of the left edge portion in FIG. Anti-rotation ribs 45 project along the insertion direction. Thus, the negative battery terminal 41 can be inserted only into the terminal opening 33 of the post protection cover 31 and cannot be inserted into the terminal opening 32 of the post protection cover 30. Inadvertent rotation or the like in the horizontal plane of the battery terminal 41 accompanying rotation can be reliably prevented.
[0034]
The flat plate portions 42 and 44 of the battery terminals 40 and 41 are respectively provided with U-shaped connection grooves 46 and locking claws 47 at the front ends of the terminal openings 32 and 33 in the insertion direction. Yes.
[0035]
The connection groove 46 is opened at the front end side in the insertion direction of the battery terminals 40 and 41 to the terminal openings 32 and 33, and the battery terminals 40 and 41 to the corresponding terminal openings 32 and 33. With the insertion, the battery posts 21 and 22 are fitted to obtain an electrical connection.
Further, the locking claws 47 project from the lower surfaces of the flat plate portions 42 and 44 of the battery terminals 40 and 41 in FIG. 1, and the battery terminals 40 and 41 are fitted into the corresponding terminal openings 32 and 33. With the insertion, it is locked to the locked portion 27 of the battery body 20.
[0036]
The battery terminals 40 and 41 are fitted into the corresponding terminal openings 32 and 33, and the battery posts 21 and 22 are fitted into the connection grooves 46. Then, 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.
[0037]
Next, the connection procedure of the battery terminal connection structure of this embodiment will be described.
First, when each battery terminal 40, 41 is connected to the corresponding battery post 21, 22 of the battery body 20, the positive battery terminal 40 is inserted into the terminal opening 32 of the post protection cover 30. With this insertion, the battery post 21 is fitted and electrically connected to the connection groove 46 of the battery terminal 40, and the locking claw 47 of the battery terminal 40 is connected to the edge of the locked portion 27. (See FIG. 3).
[0038]
At this time, even if the positive battery terminal 40 is mistakenly inserted into the terminal opening 33 of the post protective cover 31, it cannot be inserted due to the difference in shape. Therefore, the battery terminal 40 is not connected to the battery post 22 by mistake in polarity.
Further, when the positive electrode battery terminal 40 is inserted into the terminal opening 32 of the post protective cover 30, there is almost no fear of dropping off. Therefore, good workability is ensured.
[0039]
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 post protective cover 30, and the fixing nut 23 is rotated and tightened. Thereby, the battery terminal 40 is securely fixed to the battery post 21.
[0040]
At this time, since the locking claw 47 of the battery terminal 40 is locked to the locked portion 27, the battery terminal 40 falls out of the terminal opening 32 of the post protective cover 30 before being fixed by the fixing nut 23. It is possible to reliably prevent such troubles.
Further, the rotation prevention rib 43 of the battery terminal 40 is fitted into the rib groove 32 a of the terminal opening 32 of the post protection cover 30, so that the battery terminal 40 is rotated in the horizontal plane as the fixing nut 23 rotates. Inadvertent rotation or the like can be reliably prevented. Therefore, the operator does not need to hold the battery terminal 40 with one hand, and good workability can be obtained.
[0041]
Further, the negative electrode battery terminal 41 is also provided with the terminal opening 33 of the post protection cover 31 with good workability without mistaking the polarity as in the case of the positive electrode battery terminal 40 described above. The battery post 22 is fixed to the negative pole.
[0042]
Next, a battery terminal connection structure according to a second embodiment of the present invention will be described with reference to FIGS. FIG. 4 is a perspective view of a main part showing a connection structure of the battery terminal of the present embodiment, and FIG. 5 is a cross-sectional view of the main part in FIG.
[0043]
As shown in FIGS. 4 and 5, the battery terminal connection structure of the present embodiment is provided by fitting or insert-molding the fixing nut 23 onto the virtual central axis of the opening closing knob 50 made of synthetic resin or the like. 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.
[0044]
That is, the opening closing knob 50 is configured such that, 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 contacting the upper surfaces 30a, 31a of the 30, 31. 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. Other configurations and operations are the same as those in the first embodiment.
[0045]
As described above, according to each of the above-described embodiments, the terminal openings 32 and 33 of the post protection covers 30 and 31 can be fitted with only the battery terminals 40 and 41 having the corresponding polarities. 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.
[0046]
In addition, when the battery terminals 40 and 41 are inserted into the corresponding terminal openings 32 and 33 of the post protection covers 30 and 31, the latches provided at the tips of the battery terminals 40 and 41 in the fitting direction are provided. The claw 47 is locked to the locked portion 27 of the battery body 20.
Therefore, the battery terminals 40 and 41 do not fall 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.
[0047]
Further, the rotation prevention ribs 43 and 45 of the battery terminals 40 and 41 are fitted into the rib grooves 32 a and 33 a of the terminal openings 32 and 33. Accordingly, it is possible to reliably prevent inadvertent rotation or the like of the battery terminals 40 and 41 in the horizontal plane due to the rotation of the fixing nut 23 by screwing. Thereby, the favorable workability | operativity at the time of battery terminal 40 and 41 connection is securable.
[0048]
Further, according to the first embodiment, each post protection cover 30, 31 is detachably provided separately from the battery body 20, so that the post protection cover 30, 31 can be easily separated from the battery body 20. It can shape | mold and can aim at cost reduction.
[0049]
Further, the battery posts 21 and 22 of the respective polarities are provided in the respective recesses 26 so that the tip portions do not protrude outward from the upper surface of the battery body 20 in FIG. It does not protrude from the work opening 34 of the post protection cover 30, 31 which is one. Therefore, it is possible to reliably protect the battery posts 21 and 22 from short circuit and damage due to inadvertent contact of a tightening tool or the like.
[0050]
Further, according to the second embodiment, the battery terminals 40 and 41 are further fixed to the fixing nuts 23 by screwing to the battery posts 21 and 22, and work is performed in accordance with the screwing to the battery posts 21 and 22. 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.
[0051]
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.
[0052]
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.
[0053]
In each of the above embodiments, the post protective covers 30 and 31 having two side surfaces erected substantially at right angles from the edges of the two sides of the substantially square top surfaces 30a and 31a are connected to the corner portions 24 and 24 of the battery body 20, respectively. 25, each post protection cover 30, 31 has a configuration in which the outer surface of each post protection cover 30, 31 is flush with the outer wall surface of the battery body 20. However, the present invention is not limited to this configuration. Absent.
[0054]
That is, the battery body 20 is not formed with the recess 26, but a battery post projects from the upper surface of the battery body 20, and has four side surfaces erected substantially at right angles from the edges of the four sides of the substantially square upper surface. A post protective cover (not shown) may be placed so as to surround the battery post.
According to this configuration, it can be easily applied to a general battery structure that does not have the concave portions 26 at the corners of the battery body 20, and high versatility can be obtained.
[0055]
【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 includes the positive and negative battery posts, and the post protective cover that is detachably provided separately from the battery body and covers each battery post. Each post protective cover is provided with a terminal opening formed in a required shape dedicated to the positive or negative pole so that only the battery terminal of the corresponding polarity can be inserted, and each battery terminal corresponds to The connecting groove is formed in a required shape that can be inserted into the terminal opening, and has a connecting groove that is fitted to the battery post to obtain an electrical connection at the distal end of the terminal opening in the inserting direction.
[0056]
Accordingly, the positive or negative battery terminals connected to the ends of the electric wires are respectively inserted into the corresponding terminal openings of the post protection cover, and the battery posts are fitted into the connection grooves at the ends thereof. . At this time, even if the battery terminal is erroneously inserted into a terminal opening that does not correspond, it cannot be inserted due to the difference in shape. Therefore, it is possible to reliably prevent erroneous connection due to the difference in polarity and to ensure good workability.
In addition, since each post protection cover is detachably provided separately from the battery body, each post protection cover can be easily formed, and cost can be reduced.
[0057]
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 a post protective cover is provided at the tip of each battery terminal. A locking claw that is locked to the locked portion is provided when the corresponding terminal opening is inserted into the battery post.
Therefore, as each battery terminal is inserted into the corresponding terminal opening of the post protection cover, a locking claw provided at the front end of each battery terminal in the fitting direction is provided near each battery post of the battery body. It is locked to the locked portion. Therefore, problems such as the battery terminal falling off from the terminal opening during the operation are surely prevented, and good workability can be obtained.
[0058]
According to the invention described in claim 3, each battery terminal is provided with a rotation prevention rib projecting along the direction of insertion into the terminal opening, and each battery terminal has an opening for each terminal. A rib groove for inserting the rotation preventing rib is provided.
Therefore, when the battery terminals of the respective poles are respectively inserted into the terminal openings of the corresponding post protective covers, the rotation prevention ribs protruding along the insertion direction of the respective terminal openings are the terminal openings. Fits into the rib groove. Accordingly, for example, inadvertent rotation of each battery terminal during work, for example, in a horizontal plane can be reliably prevented, and good workability can be obtained.
[0059]
According to the invention described in claim 4, each battery terminal fitted into the battery post is inserted into the corresponding terminal opening and is screwed into the battery post. A fixing screwing member is provided, and each post protective cover is provided with a working opening for screwing the screwing member. Each screwing member is engaged with the battery post. An opening closing member for closing the working opening is integrally provided.
Therefore, 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 into 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, the high waterproofness and dustproofness by obstruction | occlusion of the work opening after a work are ensured.
[0060]
Further, according to the fifth aspect of the present invention, each opening closing member can be manually operated from the outside, and a tool mounting portion on 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;
FIG. 2 is a perspective view of a main part showing a recess and a battery post in FIG. 1;
3 is a cross-sectional view of a main part showing a locked portion and a locking claw in FIG. 1. FIG.
FIG. 4 is a perspective view showing a main part of a battery terminal connection structure according to a second embodiment of the present invention.
5 is a cross-sectional view of the main part in FIG. 4;
FIG. 6 is a plan view showing a cord terminal connection structure of a conventional battery.
7 is a perspective view of essential parts in FIG. 6. FIG.
[Explanation of symbols]
20 Battery body 21, 22 Battery post 23 Screwing member (fixing nut)
24 corner (left corner)
25 corner (right corner)
26 Recess 27 Locked portion 30, 31 Post protective cover 32, 33 Terminal opening 32a, 33a Rib groove 34 Work opening 40, 41 Battery terminal 42, 44 Flat plate portion 43, 45 Anti-rotation rib 46 Connection groove 47 Claw 50 Opening closing member (opening closing knob)
51 O-ring 52 Tool mounting part

Claims (5)

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 includes positive and negative battery posts; and a post protective cover that is detachably provided separately from the battery body and covers each of the battery posts.
Each of the post protective covers includes terminal openings each formed in a required shape dedicated to the positive electrode or the negative electrode so that only the battery terminal of the corresponding polarity can be inserted.
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 tip of each battery terminal is provided with a locking claw that is locked to the locked portion as the post protection cover is inserted into the corresponding battery post from the corresponding terminal opening. The battery terminal connection structure according to claim 1, wherein: 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. Each of the battery posts of each polarity is provided with a screwing member that is fitted into the corresponding terminal opening and is fixed to the battery post by screwing the battery terminal. In addition, each post protection cover is provided with a working opening for screwing work of each screwing member,
4. An opening closing member that closes the working opening in association with screwing to the battery post is provided integrally with each screw member. Battery terminal connection structure. 5. 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. Battery terminal connection structure.

Images