Battery post terminal assembly body

Abstract

To prevent a battery post terminal from deforming more than necessary.SOLUTION: A battery post terminal assembly body 1 includes a battery post terminal 10 having a gripping portion 21 capable of gripping a battery post inside and a clamping portion 31 arranged to extend from the end of the gripping portion, a holder 40 arranged on the outside of the clamping portion, and a base member 50 arranged on the inside of the clamping portion, the base member includes a base portion 52 and a screw shaft 51 provided on one surface of the base portion and connecting to the holder, and the battery post terminal includes a contact portion 70 extending inside the clamping portion and capable of contacting the battery post.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a battery post terminal assembly. [Background technology]

[0002] Generally, batteries mounted on vehicles such as automobiles have battery posts that protrude from their top surfaces, and battery post terminals are fixed to the battery posts. Harnesses for supplying power are connected to these battery post terminals. One structure for fixing the battery post terminals to the battery post includes a slope member in each leg that has a slope with the same inclination angle as the inclined surface of the extension section, pressing the extension section, and a bolt with threaded portions inserted vertically between the extension sections and tightened to move the slope member up and down (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent No. 6278948 Summary of the Invention [Problem to be solved by the invention]

[0004] Incidentally, in the battery post terminal assembly, tightening may be performed with anti-rust oil attached to the battery post.

[0005] In the above-described usage conditions, the battery post terminal assembly may lose its holding power if the frictional force of the contact surface with the battery post decreases. Therefore, in conventional battery post terminal assemblies, it was necessary to improve the holding power of the battery post when tightened.

[0006] The present invention has been made in view of the above-mentioned problems, and has an object to provide a battery post terminal assembly that can improve the holding force of a battery post when fastened. [Means for solving the problem]

[0007] A battery post terminal assembly according to a representative embodiment of the present invention comprises a battery post terminal having a gripping portion capable of gripping a battery post inside and a fastening portion arranged to extend from the end of the gripping portion, a holder arranged outside the fastening portion, and a base member arranged inside the fastening portion, wherein the base member has a base portion and a screw shaft provided on one side of the base portion and connecting to the holder, and the battery post terminal has a contact portion extending inside the fastening portion and capable of contacting the battery post.

[0008] In the battery post terminal assembly, the contact portion has a fracture surface on the end surface that contacts the battery post.

[0009] In the battery post terminal assembly, the contact portion is provided between the grip portion and the fastening portion and is formed in a claw shape extending inward of the fastening portion.

[0010] In the battery post terminal assembly, the base member is provided on the seat portion and has a recess that can come into contact with the contact portion when connected to the holder.

[0011] In the battery post terminal assembly, when the base member is connected to the holder, the tip of the contact portion protrudes from the recess and can come into contact with the pedestal portion. [Effects of the Invention]

[0012] According to the battery post terminal assembly of the present invention, it is possible to provide a battery post terminal assembly that improves the holding force of the battery post when fastened. [Brief explanation of the drawings]

[0013] [Figure 1] FIG. 2 is a side view of the battery post terminal assembly according to the embodiment. [Figure 2] FIG. 2 is an exploded perspective view of the battery post terminal assembly according to the embodiment. [Figure 3] FIG. 2 is a bottom view of the battery post terminal assembly according to the embodiment. [Figure 4] FIG. 2 is a plan view of the battery post terminal assembly according to the embodiment. [Figure 5] FIG. 2 is a partial perspective view of a battery post terminal assembly according to an embodiment. [Figure 6] FIG. 2 is a partially enlarged bottom view of the battery post terminal assembly according to the embodiment. [Figure 7] FIG. 2 is a partially enlarged perspective bottom view of the battery post terminal assembly according to the embodiment. [Figure 8] 10 is a partially enlarged side view showing a state in which a base member is inserted into a tightening portion in a battery post terminal assembly according to an embodiment. FIG. [Figure 9] 10 is a partially enlarged bottom view showing a state in which a base member is inserted into a tightening portion in a battery post terminal assembly according to an embodiment. FIG. [Figure 10] 10 is a partially enlarged side view showing a state in which a portion of the seat portion of the base member is inserted into the tightening portion in the battery post terminal assembly according to the embodiment. FIG. [Figure 11] 10 is a partially enlarged bottom view showing a state in which a portion of the seat portion of the base member is inserted into the tightening portion in the battery post terminal assembly according to the embodiment. FIG. [Figure 12] 10 is a partially enlarged side view showing the state in which the contact portion is inserted into the recess of the pedestal portion of the base member in the battery post terminal assembly according to the embodiment. FIG. [Figure 13] 10 is a partially enlarged bottom view showing the state in which the contact portion is inserted into the recess of the pedestal portion of the base member in the battery post terminal assembly according to the embodiment. FIG. [Figure 14]10 is a partially enlarged side view showing a state in which the base member is housed in the tightening portion in the battery post terminal assembly according to the embodiment. FIG. [Figure 15] 10 is a partially enlarged bottom view showing the state in which the base member is housed in the tightening portion in the battery post terminal assembly according to the embodiment. FIG. DETAILED DESCRIPTION OF THE INVENTION

[0014] 1. Overview of the embodiment First, an outline of a typical embodiment of the present invention will be described. In the following description, as an example, reference numerals in the drawings corresponding to components of the present invention will be written in parentheses.

[0015] [1] A battery post terminal assembly (1) according to a representative embodiment of the present invention comprises a battery post terminal (10) having a gripping portion (21) capable of gripping a battery post inside thereof and a fastening portion (31) arranged to extend from the end of the gripping portion, a holder (40) arranged on the outside of the fastening portion, and a base member (50) arranged on the inside of the fastening portion, the base member having a pedestal portion (52) and a screw shaft (51) provided on one side of the pedestal portion and connecting to the holder, and the battery post terminal has a contact portion (70) extending inside the fastening portion and capable of contacting the battery post.

[0016] [2] In the battery post terminal assembly described in [1] above, the contact portion has a fracture surface on the end surface (71) that contacts the battery post.

[0017] [3] In the battery post terminal assembly described in [1] and [2] above, the contact portion is provided between the gripping portion and the fastening portion and is formed in a claw shape extending inward of the fastening portion.

[0018] [4] In the battery post terminal assembly described in [1] to [3] above, the base member has a recess (56) provided on the pedestal portion that can come into contact with the contact portion when connected to the holder.

[0019] [5] In the battery post terminal assembly described in [1] to [4] above, when the base member is connected to the holder, the tip of the contact portion can protrude from the recess and come into contact with the base portion.

[0020] 2. Specific examples of embodiments A battery post terminal assembly 1 according to an embodiment of the present invention will now be described with reference to the drawings.

[0021] FIG. 1 is a side view of a battery post terminal assembly 1 according to an embodiment. As shown in FIG. 1, the battery post terminal assembly 1 includes a battery post terminal 10 having a gripping portion 21 capable of gripping a battery post from the inside thereof and a pair of fastening portions 31 extending from the end of the gripping portion. The battery post terminal assembly 1 also includes a holder 40 disposed on the outside of the fastening portion 31 and a base member 50 disposed on the inside of the fastening portion 31. The base member 50 includes a pedestal portion 52 and a screw shaft 51 provided on one surface of the pedestal portion 52 and connecting to the holder 40. The battery post terminal 10 includes a contact portion 70 extending inside the fastening portion 31 and capable of contacting a battery post. The battery post terminal assembly 1 will be described in detail below.

[0022] Fig. 2 is an exploded perspective view of the battery post terminal assembly 1. Fig. 3 is a bottom view of the battery post terminal assembly 1. Fig. 4 is a plan view of the battery post terminal assembly 1. Fig. 5 is a partial perspective perspective view of the battery post terminal assembly 1. In Fig. 5, the internal configuration of the extension portion 32 of the tightening portion 31 of the battery post terminal 10 is shown by a broken line.

[0023] For ease of explanation, in the battery post terminal assembly 1 shown in FIGS. 1 to 5, the direction parallel to the axis z1 of the screw shaft 51 of the base member 50 disposed inside the fastening portion 31 of the battery post terminal 10 (hereinafter also referred to as the axial direction) is referred to as the z-axis direction. The axis z1 direction is also referred to as the up-down direction. One of the directions perpendicular to the axis z1 of the battery post terminal assembly 1 (the x-axis direction) is referred to as the left-right direction. The x-axis direction is also the horizontal direction in the battery post terminal assembly 1. The other of the directions perpendicular to the axis z1 of the battery post terminal assembly 1 (the y-axis direction) is referred to as the front-to-rear direction. In the battery post terminal assembly 1, the -y direction is also referred to as the front side, and the +y direction is also referred to as the rear side. In the battery post terminal assembly 1, the direction perpendicular to the axis z1 of the screw shaft 51 is also referred to as the radial direction of the screw shaft 51. Furthermore, in the battery post terminal assembly 1, the direction viewed from the -y direction toward the +y direction is referred to as the front direction. In the following description, when the positional relationship and direction of each component are described as right side, left side, front side, rear side, top side, and bottom side, these refer only to the positional relationship and direction in the drawings and do not limit the positional relationship and direction in the actual battery post terminal assembly.

[0024] As shown in FIGS. 1 to 5, the battery post terminal assembly 1 is constructed by assembling a battery post terminal 10 and a holder 40 by fastening them together in the vertical direction using a base member 50 and a nut 60 as a fastening member.

[0025] The battery post terminal 10 is made of a conductive metal material. The components of the battery post terminal 10 are integrally molded by pressing the metal material. The battery post terminal 10 is integrally formed with a connection portion 11 located on the far side (+y side) in FIG. 1, a grip portion 21 located on the near side (-y side) of the connection portion 11, and a tightening portion 31 located further forward than the grip portion 21.

[0026] The connection part 11 is incorporated into the case of a detection sensor of a battery state detection device (not shown). A harness for an electrical component (not shown) is attached in a manner that the detection sensor is interposed therebetween. The shape of the connection part 11 is formed arbitrarily to match the mounting structure within the detection sensor. The connection part 11 also functions as a structural member that supports the detection sensor.

[0027] The gripping portion 21 secures the battery post terminal 10 to a battery post (not shown). The gripping portion 21 is annular or approximately annular, i.e., arc-shaped or approximately arc-shaped, with a truncated cone-shaped insertion space inside to match the shape of the battery post. The insertion space is configured to allow a truncated cone-shaped battery post (not shown) to be inserted. In the following description, the central axis of the truncated cone-shaped insertion space may be referred to as the insertion axis. The inner peripheral surface 22 of the gripping portion 21 is inclined to make surface contact with the inclined outer peripheral surface of the battery post. The inner peripheral surface 22 also has multiple grooves 24 spaced circumferentially. The grooves 24 are formed approximately along the insertion axis. The grooves 24 increase the clamping force of the gripping portion 21 when clamping the outer peripheral surface of the battery post. The gripping portion 21 is attached to the upper side of the battery post so as to cover the inner peripheral surface 22.

[0028] Furthermore, the gripping portion 21 is formed integrally and continuously with the connecting portion 11 at the rear side, but at the front side, it is branched (divided) into left and right parts across the inner peripheral surface 22. The tightening portion 31 is formed so as to extend toward the front from each of the tip ends of the gripping portion 21 that are branched into left and right parts.

[0029] The clamping portion 31 has an extension portion 32. Specifically, the extension portion 32 is provided on a left side extending from the left side (-x side) of the gripping portion 21 toward the user, and on a right side extending from the tip portion 23 on the right side (+x side) toward the user, with the left extension portion 32 and its inner circumferential surface 321 disposed with a space on either side across the axis z1 of the base member 50. A space is formed inside the extension portion 32, and by moving the left and right extension portions 32 toward each other, the gripping portion 21 is deformed so that the diameter of the insertion space decreases, thereby enabling the battery post to be clamped and gripped. Note that the clamping portion 31 has a symmetrical shape across the axis z1. Therefore, unless otherwise specified, the following description will only describe the structure of the left side of the extension portion 32, and the structure of the right side will be omitted.

[0030] The extension portion 32 has inclined surfaces 34, 371 that slope upward to the right or left as they approach the axis z1 from bottom to top when viewed from the front side. The inclined surface 371 is provided on the connecting portion 37 of the battery post terminal 10, which is located between the grip portion 21 and the fastening portion 31 in the front-rear direction (y-axis direction). Furthermore, as shown in FIG. 1, a boss portion 35 that expands in a generally U-shape from the inside to the outside is formed between the inclined surfaces 34 and 371 in the front-rear direction of the extension portion 32. As shown in FIG. 2, the position of the boss portion 35 corresponds to the position where the screw shaft 51 is inserted when the base member 50 is attached. Furthermore, as shown in FIGS. 1 and 2, the boss portion 35 is formed to protrude outward between the adjacent leg portions 42 when the holder 40 is assembled to the fastening portion 31.

[0031] The extension section 32 is elastic and can move elastically left and right with the portion at the back of the grip section 21 as its base end. A bent section 33 is formed at the front end of the right side of the extension section 32, with the end section 36 bent at a substantially right angle toward the left. The end section 36 of the bent section 33 extends to a position close to the end of the inclined surface 34 on the front side of the left extension section 32. The bent section 33 is bent so that its length in the left-right direction covers the inner circumferential surface 321 on the inside of the extension section 32 from the front side.

[0032] 1 and 3, the contact portion 70 is provided in the battery post terminal 10 between the grip portion 21 and the fastening portion 31 in the front-to-rear direction (y-axis direction). Specifically, the contact portion 70 is provided together with the inclined surface 371 in the battery post terminal 10 at the connecting portion 37 which is located in front of the grip portion 21 and behind the boss portion 35 of the fastening portion 31.

[0033] The contact portion 70 has a shape that extends inward of the fastening portion 31 in the left-right direction (x-axis direction) and can come into contact with the battery post. The contact portion 70 is formed, for example, in a claw shape that extends from the connecting portion 37 toward the inside of the fastening portion 31 and tapers from the base side molded integrally with the connecting portion 37 toward the inner tip. The contact portion 70 has a fracture surface on an end surface 71 that comes into contact with the battery post, which is generated when the battery post terminal 10 is integrally molded by press working.

[0034] As shown in FIGS. 1 and 2, the holder 40 is attached so as to cover the fastening portion 31 of the battery post terminal 10 from above. The holder 40 has a generally rectangular top surface 41, four legs 42 extending downward from each of the four corners of the top surface 41, and an insertion hole 411 (see FIG. 2) provided in the center of the top surface 41. The sides of the top surface 41 are shorter in the front-to-rear direction than in the left-to-right direction. A screw shaft 51 of a base member 50 (described below) is inserted into the insertion hole 411. The four legs 42 are arranged symmetrically in the front-to-rear and left-to-right directions around the insertion hole 411, and the spacing between the legs 42 in the front-to-rear direction is narrower than the spacing between the legs in the left-to-right direction. The top surface of the top surface 41 is formed flat so that a nut 60 can be stably fastened.

[0035] Slopes 421 (see FIG. 2) are formed on the left and right inner sides of the leg 42. These slopes 421 are formed at the same inclination angle as the inclined surfaces 34, 371 of the left and right extension parts 32, and when the holder 40 is assembled to the tightening part 31, the inclined surfaces 34, 371 and the slopes 421 come into surface contact with each other.

[0036] The lower ends of the legs 42 are designed to abut against the upper surface of the pedestal portion 52 of the base member 50 when the nuts 60 are fully tightened. In other words, the length of the legs 42 is determined in relation to the tightening torque when the nuts 60 are tightened, and by tightening the nuts until the four legs 42 abut against each other, overtorque is prevented.

[0037] Furthermore, when the holder 40 is viewed from a vertical direction in the attached state, the legs 42 of the holder 40 are arranged at intervals along the outer periphery of the screw shaft 51, with the screw shaft 51 of the base member 50 at the center, and are arranged in a nearly evenly balanced manner so as to surround the outside of the screw shaft 51.

[0038] As shown in Figures 1, 2, and 5, the base member 50 is composed of a screw shaft 51 extending in the vertical direction, a base portion 52 located below the screw shaft 51, and a protrusion portion 54 and a recess portion 56 provided on the base portion 52.

[0039] 2, the screw shaft 51 includes a male thread portion 511 having a thread formed over a predetermined length from the tip portion facing upward, a step portion 513 as a restricting member that restricts movement of the holder 40, and a small diameter portion 512 provided between the male thread portion 511 and the step portion 513. In the base member 50, the small diameter portion 512 and the step portion 513 function as restricting members that restrict movement of the holder 40 in the direction of the axis z1. The base member 50 is a so-called stepped base member in which the step portion 513 without a thread is provided over a predetermined length on the base end side of the screw shaft 51, i.e., on the pedestal portion 52 side.

[0040] The base portion 52 is, for example, a rectangular plate-like or substantially plate-like member having a surface extending in a direction perpendicular to the axis z1 (the x-axis direction and the y-axis direction). The base portion 52 has dimensions in the x-axis direction and y-axis direction such that the portion located at the lower end of the inclined surfaces 34, 371 of the extension portion 32 of the fastening portion 31 and the lower end of the leg portion 42 of the holder 40 can come into contact with the base portion 52 when the nut 60 is fastened to the screw shaft 51. The base portion 52 is joined to the screw shaft 51 at a base end portion on the step portion 513 side where the male thread portion 511 of the screw shaft 51 is not provided.

[0041] The protruding portion 54 is provided on the upper surface of the base portion 52, i.e., on the surface on which the screw shaft 51 is provided. The protruding portion 54 is provided on the upper surface of the base portion 52, for example, at the joint between the base end portion of the screw shaft 51 on the step portion 513 side and the base portion 52. The protruding portion 54 is provided so as to contact the step portion 513 of the screw shaft 51. The protruding portion 54 has a step shape protruding from the base portion 52. Specifically, the protruding portion 54 protrudes upward from the base portion 52 in the z-axis direction and outward in the x-axis and y-axis directions. The surface of the protruding portion 54 on the outer side in the x-axis direction functions as a side wall portion 541. A plurality of protruding portions 54 are provided in pairs around the axis z1 of the screw shaft 51. By providing the protruding portion 54, the end portion 542 and the corner portion 351 become restriction points, thereby suppressing deformation of the extension portion 32. Specifically, by using the end portion 542 and the corner portion 351 as restriction points, it is possible to suppress the end portion 36 and the bent portion 33 from opening radially outward (in the -y-axis direction) of the screw shaft 51 due to the extension of the fastening portion 31. Furthermore, by providing the protrusion 54, deformation of the extension portion 32 and the like can be further suppressed when tightening, so it is preferable that the base member 50 of the battery post terminal assembly 1 has the protrusion 54, but the base member 50 may not have the protrusion 54.

[0042] Fig. 6 is a partially enlarged bottom view of the battery post terminal assembly 1. Fig. 7 is a partially enlarged perspective bottom view of the battery post terminal assembly 1. Figs. 6 and 7 are enlarged bottom views showing the vicinity of the connecting portion 37 of the battery post terminal 10 and the pedestal portion 52 of the base member 50 in the battery post terminal assembly 1.

[0043] 2, 3, 5, 6, etc., recess 56 is provided on long side 57, which is the longitudinal portion at the outer peripheral edge of pedestal portion 52 of base member 50. Recess 56 is a notched portion extending from long side 57 toward the center of pedestal portion 52. Recess 56 is formed so as to be able to come into contact with a part of contact portion 70, for example, a portion on the base side near connecting portion 37, when base member 50 is connected to holder 40 via nut 60. By providing recess 56 in pedestal portion 52, when base member 50 is connected to holder 40, tip 72 of contact portion 70 protrudes from recess 56 and can come into contact with the bottom surface of pedestal portion 52.

[0044] Next, the operation of the battery post terminal assembly 1 according to the embodiment will be described.

[0045] Before the nuts 60 are fastened in the battery post terminal assembly 1, the holder 40 is placed on the fastening portion 31. The slopes 421 of the holder 40 are in surface contact with the inclined surfaces 34, 371 of the fastening portion 31. The base member 50 is inserted from below the fastening portion 31, and the screw shafts 51 pass through the spaces between the inner circumferential surfaces 321 of the left and right extension portions 32 (more specifically, between the left and right boss portions 35) and are inserted into the insertion holes 411 of the holder 40, and are temporarily fastened with the nuts 60.

[0046] The left-right position of the holder 40 is regulated by the contact between the slope 421 and the inclined surfaces 34, 371. The front-rear position is regulated by the contact between the inner front-rear surfaces of the holder 40 and the boss portion 35 of the fastening portion 31. The front-rear position of the holder 40 is also regulated by the inner front-rear surfaces of the legs 42 and the boss portion 35. The position of the base member 50 is regulated by the contact between the outer peripheral surface of the holder 40 in the left-right direction and the upper surface of the pedestal portion 52.

[0047] 1 and 2, when the nut 60 is tightened from above the holder 40, the holder 40 moves in the direction of the axis z1, specifically in the downward -z direction (the direction in which the base member 50 is tightened), while being guided by the left and right surface contact between the slope 421 and the inclined surfaces 34, 371. Furthermore, the slope 421 presses the inclined surfaces 34, 371 of the left and right extension portions 32 inward in the +x or -x direction by moving in the direction of the axis z1. This causes the inner circumferential surfaces 321 of the left and right extension portions 32 to elastically deform inward so as to narrow the gap between them in the left and right direction, and the battery post within the inner circumferential surface 22 of the grip portion 21 is tightened and fixed.

[0048] The inclined surfaces 34, 371 and the slope 421 press the extension portion 32 while contacting each other, so that the fastening force of the nut 60 is transmitted to the extension portion 32 in a stable manner, and the extension portion 32 is pressed in a balanced manner.

[0049] When viewed vertically from the battery post terminal 10, the legs 42 are spaced apart along the outer periphery of the screw shaft 51, with the screw shaft 51 of the base member 50 at the center, and are arranged approximately evenly so as to surround the outside of the screw shaft 51, so that they press the left and right extensions 32 inward with approximately equal force. As a result, even if forces act from multiple directions on the screw shaft 51 after the base member 50 and nut 60 are fastened, equal fixing strength can be ensured in all directions.

[0050] In the base member 50, the holder 40 moves in the direction of the axis z1, specifically in the downward −z-axis direction, due to the male thread portion 511 of the screw shaft 51. Specifically, in the base member 50, the nut 60 threaded onto the male thread portion 511 from the tip side of the screw shaft 51 moves in the tightening direction of the male thread portion 511, i.e., in the −z1 direction, thereby pressing the top surface portion 41 of the holder 40 in contact with the nut 60, and moving the holder 40 in the direction of the axis z1. The male thread portion 511 is formed within a predetermined length range from the tip end of the screw shaft 51, and therefore the nut 60 and the holder 40 move in the direction of the axis z1 within the length range of the male thread portion 511.

[0051] When the nut 60 reaches the base end side of the male thread portion 511, i.e., the lower end, the nut 60 spins freely because the small diameter portion 512 and the stepped portion 513 of the screw shaft 51 do not have threads that can be threaded onto the nut 60. In this way, the base member 50, by forming the small diameter portion 512 and the stepped portion 513, restricts the movement of the nut 60 and the holder 40, which can move together with the nut 60, in the direction of the axis z1, specifically in the downward -z-axis direction.

[0052] Fig. 8 is a partially enlarged side view showing a state in which the base member 50 is being inserted into the fastening portion 31 in the battery post terminal assembly 1. Fig. 9 is a partially enlarged bottom view showing a state similar to that in Fig. 8.

[0053] As shown in Figures 8 and 9, when assembling the base member 50 to the battery post terminal 10 in the battery post terminal assembly 1, the axis z1 of the screw shaft 51 is oriented diagonally toward the front side (-y side), and the screw shaft 51 is inserted from the lower side to the upper side of the fastening portion 31.

[0054] Fig. 10 is a partially enlarged side view showing a state in which part of the seat portion 52 of the base member 50 is inserted into the fastening portion 31 in the battery post terminal assembly 1. Fig. 11 is a partially enlarged bottom view showing the same state as Fig. 10.

[0055] As shown in Figures 10 and 11, when assembling the base member 50 to the battery post terminal 10 in the battery post terminal assembly 1, the screw shaft 51 is inserted into the fastening portion 31, and then the recess 56 provided on the long side 57 on the rear side (+y side) of the base portion 52 is inserted into the contact portion 70.

[0056] Fig. 12 is a partially enlarged side view showing the state in which the contact portion 70 of the battery post terminal assembly 1 is inserted into the recess 56 of the pedestal portion 52 of the base member 50. Fig. 13 is a partially enlarged bottom view showing the same state as Fig. 12.

[0057] As shown in Figures 12 and 13, in the battery post terminal assembly 1, when assembling the base member 50 to the battery post terminal 10, the recess 56 provided on the long side 57 on the rear side (+y side) of the base portion 52 is inserted into the contact portion 70, and then the axis z1 of the screw shaft 51, which is inclined diagonally forward, is raised vertically.

[0058] Figure 14 is a partially enlarged side view showing the state in which the base member 50 is housed in the fastening portion 31 in the battery post terminal assembly 1. Figure 15 is a partially enlarged bottom view showing the same state as in Figure 14. The states shown in Figures 14 and 15 are similar to the states shown in Figures 1 and 3.

[0059] As shown in Figures 14 and 15, when assembling the base member 50 to the battery post terminal 10 in the battery post terminal assembly 1, the axis z1 of the screw shaft 51, which is tilted diagonally toward the front, is raised vertically so that the long side 57 on the front side fits inside the tightening portion 31, and the positional relationship between the battery post terminal 10 and the base member 50 becomes the state it is in when in use.

[0060] The battery post terminal assembly 1, which includes the battery post terminal 10 and base member 50 assembled as described above, has a contact portion 70 that extends inside the fastening portion 31 of the battery post terminal 10 and can come into contact with the outer periphery of the battery post located at the location indicated by the dashed line BP in Figures 4 and 7. In other words, with the battery post terminal assembly 1, the battery post terminal 10 and the battery post are held by the contact portion 70 in addition to the gripping portion 21, thereby improving the holding force of the battery post during tightening. Specifically, with the battery post terminal assembly 1, the holding force of the battery post during tightening can be improved, for example, when tightening is performed with anti-rust oil on the battery post, due to the presence of the contact portion 70.

[0061] Furthermore, in the battery post terminal assembly 1, the contact portion 70 may have a fractured surface on the end surface 71 that contacts the outer periphery BP of the battery post. In this case, the unevenness of the end surface 71 due to the fractured surface engages with the outer periphery BP of the battery post, thereby further improving the holding force of the battery post when fastened. Furthermore, the shape of the end surface 71 corresponds to the shape of the outer periphery BP of the battery post, thereby further improving the holding force of the battery post when fastened.

[0062] Furthermore, in the battery post terminal assembly 1, the contact portion 70 may be provided between the gripping portion 21 and the fastening portion 31, with the tip 72 formed in a claw shape that extends inside the fastening portion 31. By having the tip 72 of the contact portion 70 shaped so that its length in the y direction is shorter than its base side, the battery post terminal assembly 1 makes it easier to insert the base member 50 into the fastening portion 31, as shown in Figures 8 to 15.

[0063] Furthermore, in the battery post terminal assembly 1, the base member 50 may have a recess 56 in the seat portion 52 that can come into contact with the contact portion 70 when connected to the holder 40. The provision of the recess 56 makes it possible to more reliably position the battery post terminal 10 and the base member 50, and in the battery post terminal assembly 1, deformation of the battery post terminal 10 during tightening can be further suppressed when a strong force is applied during tightening.

[0064] Furthermore, in the battery post terminal assembly 1, the tip 61 of the contact portion 70 may protrude from the recess 56 and be able to contact the pedestal portion when the base member 50 is connected to the holder 40. By having the contact portion 70 have such a shape, the battery post terminal assembly 1 can support the bottom of the pedestal portion 52 of the base member 50 together with the battery post, thereby more reliably positioning the base member 50.

[0065] 3. Another embodiment The above describes a battery post terminal assembly 1 according to an embodiment of the present invention, but the present invention is not limited to the above-described embodiment, and various modifications and variations are possible based on the technical concept of the present invention.

[0066] For example, the following outlines of other embodiments of the present invention shown in <1> to <3> are also feasible. In the following description, as another example of the present invention, reference numerals in the drawings corresponding to the components of the invention are written in parentheses.

[0067] <1> A battery post terminal assembly (1) according to another embodiment of the present invention comprises a battery post terminal (10) having a gripping portion (21) capable of gripping a battery post inside and a fastening portion (31) arranged to extend from the end of the gripping portion, a holder (40) arranged on the outside of the fastening portion, and a base member (50) arranged on the inside of the fastening portion, wherein the base member has a base portion (52), a screw shaft (51) provided on one side of the base portion and connected to the holder, and a recess (56) provided on the base portion that can come into contact with the contact portion when connected to the holder, and the battery post terminal has a contact portion (70) whose tip protrudes from the recess and can come into contact with the base portion when the base member is connected to the holder.

[0068] <2> In the battery post terminal assembly described above in <1>, the contact portion has a fracture surface on an end surface (71) that contacts the battery post terminal.

[0069] <3> In the battery post terminal assembly described in <1> and <2> above, the contact portion is provided between the gripping portion and the fastening portion and is formed in a claw shape extending inward of the fastening portion.

[0070] Generally, in a battery post terminal assembly, tightening is sometimes performed with anti-rust oil applied between the base member and the nut, or with a strong force being applied to the battery post terminal.

[0071] In the above-described usage conditions, the battery post terminal assembly 1 according to the outline of another embodiment of the present invention shown in <1> to <3> can improve the holding force of the battery post even if the frictional force between the outer periphery BP, which is the contact surface of the battery post, and the battery post terminal 10 decreases. Furthermore, the battery post terminal assembly 1 is tightened with a strong force, which further suppresses deformation of the inclined surfaces 34, 371 of the battery post terminal 10. [Explanation of symbols]

[0072] 1...battery post terminal assembly, 10...battery post terminal, 11...connection portion, 21...gripping portion, 22...inner surface, 23...tip portion, 24...groove, 31...tightening portion, 32...extension portion, 33...bent portion, 34, 371...inclined surface, 35...boss portion, 36...end portion, 40...holder, 41...top surface portion, 42...leg portion, 50...base member, 51...screw shaft, 52...pedestal portion, 54...extension portion, 56...recess, 57...long side, 60...nut, tip...61, 70...contact portion, 71...end face, 72...tip, 321...inner surface, 411...insertion hole, 421...slope, 511...male thread portion, 512...small diameter portion, 513...step portion

Claims

1. a battery post terminal having a gripping portion capable of gripping a battery post therein and a fastening portion disposed so as to extend from an end of the gripping portion; a holder disposed outside the fastening portion; a base member disposed inside the fastening portion; Equipped with The base member is A base portion and a screw shaft provided on one surface of the base portion and coupled to the holder; and The battery post terminal is a contact portion extending inside the fastening portion and capable of contacting the battery post; Battery post terminal assembly.

2. The contact portion has a fracture surface on an end surface that contacts the battery post.

10. The battery post terminal assembly of claim 1.

3. The contact portion is provided between the grip portion and the fastening portion and is formed in a claw shape extending inward of the fastening portion.

3. The battery post terminal assembly of claim 1 or 2.

4. the base member is provided on the pedestal portion and has a recess that can come into contact with the contact portion when connected to the holder; 10. The battery post terminal assembly of claim 1.

5. When the base member is connected to the holder, the tip of the contact portion protrudes from the recess and can come into contact with the pedestal portion.

5. The battery post terminal assembly of claim 4.

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