terminals

Abstract

To provide a terminal in which a spring member can be easily separated from a base portion that constitutes the terminal body without impairing the bonding strength between the spring member and the base portion.SOLUTION: A terminal is provided with a terminal body having a base portion connected to an electric wire, and a spring member attached to the base portion and electrically connected to a mating terminal, the spring member is connected to the base portion at a joint, and at least one of the spring member and the base portion has a hook portion into which a jig can be inserted to disconnect the joint.SELECTED DRAWING: Figure 1

Description

【Technical Field】 【0001】 The present invention relates to a terminal to which an electric wire such as a wire harness for a large current is connected, and particularly to a terminal having excellent recyclability. 【Background Art】 【0002】 Electrical equipment installed in automobiles and the like constitutes an electrical circuit by being connected to another electrical equipment or a power supply device via a wire harness in which coated electric wires are bundled. At this time, the wire harness and the electrical equipment or the power supply device are connected by connectors attached to each of them. Further, with an increase in the magnitude of the current to be energized, a terminal to which a thickened electric wire is electrically connected may be used. 【0003】 As a terminal to which a thickened electric wire is electrically connected, for example, there is provided a terminal body having a spring member electrically connected to a male terminal to be connected, and a conductive base portion electrically connected to the spring member. The base portion has a pair of side walls arranged with an insertion space into which a part of the male terminal can be inserted. The spring member is arranged between the pair of side walls in the base portion. A female terminal in which the spring member and the side wall are fixed by a conductive welded portion in which the spring member and the side wall are conductively welded has been proposed (Patent Document 1). When the electric wire is thickened, it is necessary to form the terminal with a thick terminal plate material. In Patent Document 1, a conductive spring member is pressed against a part of the male terminal inserted into the insertion space with the side wall as a reaction force to be in close contact therewith, thereby improving the conductivity between the female terminal and the male terminal to which the thickened electric wire is electrically connected. 【0004】 On the other hand, from the viewpoint of reducing environmental load, it is preferable that the materials constituting the terminal be recycled. Generally, when recycling materials, it is necessary to separate and recycle them for each same material type. 【0005】 The terminal described in Patent Document 1 is composed of multiple components (i.e., a spring component and a base component). When a terminal is composed of multiple components and the materials of these components are different, it is necessary to disassemble the terminal into its individual components, that is, to separate each component, in order to recycle the materials that make up the terminal. 【0006】 However, when multiple components are joined together by laser welding or similar methods, while the joint strength between the components is excellent, there is a problem in that it is difficult to disassemble the terminals into individual components, making it difficult to recycle the terminals. [Prior art documents] [Patent Documents] 【0007】 [Patent Document 1] International Publication No. 2022 / 118736 [Overview of the project] [Problems that the invention aims to solve] 【0008】 In view of the above circumstances, the present invention aims to provide a terminal that facilitates the separation of the spring member from the base without impairing the joint strength between the spring member and the base that constitute the terminal body. [Means for solving the problem] 【0009】 The gist of the present invention is as follows: [1] A terminal body is provided having a base portion connected to an electric wire and a spring member attached to the base portion and electrically connected to the mating terminal, The spring member is connected to the base portion at the joint portion, A terminal having a hook portion on at least one of the spring member and the base portion into which a jig for releasing the connection of the joint portion can be inserted. [2] The terminal according to [1], wherein the hook portion is formed starting from a portion on the same plane as the interface between the spring member and the base portion at the joint. [3] The terminal according to [1] or [2], wherein the hook portion is provided near the joint portion. [4] The terminal according to [1] or [2], wherein the hook portion is provided at a portion corresponding to the edge of the spring member. [5] The terminal according to [1] or [2], wherein the joint is made by laser welding. [6] The terminal according to [1] or [2], wherein a plurality of joints are provided on the same plane of the base portion, and the hooking portion is provided near each of the plurality of joints. [7] The terminal according to [1] or [2], wherein the joint extends in the longitudinal direction of the spring member and the hook is provided near the longitudinal end of the joint. [8] The terminal according to [1] or [2], wherein the hook portion has a roof portion that extends in the plane direction of the base portion. [9] The terminal according to [1] or [2], wherein the jig is a rod-shaped member. [Effects of the Invention] 【0010】 According to an embodiment of the terminal of the present invention, at least one of the spring member and the base portion has a hook portion into which a jig for releasing the connection between the spring member and the base portion can be inserted. By inserting the jig into the hook portion and applying stress to the jig to peel the spring member away from the base portion, the spring member can be easily separated from the base portion, and the connection at the joint is released. Thus, the jig inserted into the hook portion has the function of separating the spring member from the base portion. Furthermore, in the embodiment of the terminal of the present invention, since the spring member is connected to the base portion at the joint, the joint strength between the spring member and the base portion constituting the terminal body is not impaired. 【0011】 According to an embodiment of the terminal of the present invention, since the hook portion is formed starting from a point on the same plane as the interface between the spring member and the base portion at the joint, the stress applied to the jig is efficiently transmitted to the joint between the spring member and the base portion, thereby further facilitating the separation of the spring member from the base portion. 【0012】 According to an embodiment of the terminal of the present invention, since the hooking portion is provided near the joint portion, the stress applied to the jig is transmitted more reliably to the joint portion between the spring member and the base portion, thereby further facilitating the separation of the spring member from the base portion. 【0013】 According to an embodiment of the terminal of the present invention, the hook portion is provided at a location corresponding to the edge of the spring member, thereby facilitating the insertion of a jig into the hook portion. 【0014】 According to an embodiment of the terminal of the present invention, the joint portion is made of laser welding, which reliably improves the joint strength between the spring member and the base portion. Furthermore, since the joint portion is made of laser welding, the area of ​​the joint portion can be reduced, making it even easier to separate the spring member from the base portion. 【0015】 According to an embodiment of the terminal of the present invention, since the hook portion is provided near each of the multiple joint portions, the separation of the spring member from the base portion can be facilitated even if multiple joint portions are formed. 【0016】 According to an embodiment of the terminal of the present invention, the joint portion extends in the longitudinal direction of the spring member, thereby reliably improving the joint strength between the spring member and the base portion. Furthermore, according to an embodiment of the terminal of the present invention, the hook portion is provided near the longitudinal end of the joint portion, so that the spring member and the base portion can be separated sequentially from the longitudinal end of the joint portion toward the center, thereby reducing the stress required when separating the spring member from the base portion. Consequently, by having the joint portion extend in the longitudinal direction of the spring member and the hook portion provided near the longitudinal end of the joint portion, the joint strength between the spring member and the base portion can be reliably improved while further facilitating the separation of the spring member from the base portion. 【0017】 According to the aspect of the terminal of the present invention, since the hooking portion has a roof portion extending in the plane direction of the base portion, the stress on the jig can be applied in a direction orthogonal to the plane direction of the base portion. Thus, the peeling of the spring member from the base portion is simplified, and the separation of the spring member from the base portion can be further facilitated. Also, in the aspect of the terminal of the present invention, since the jig is a rod-shaped member, the connection of the joint portion can be released with a simple jig. 【Brief Description of Drawings】 【0018】 [Figure 1] It is a perspective view of a terminal according to a first embodiment example of the present invention. [Figure 2] It is a cross-sectional view of a hooking portion in a terminal according to a first embodiment example of the present invention. [Figure 3] It is an explanatory view showing a mechanism for inserting a rod-shaped member into a hooking portion of a terminal according to a first embodiment example of the present invention to separate a spring member from a base portion. [Figure 4] It is a perspective view of a terminal according to a second embodiment example of the present invention. [Figure 5] It is a cross-sectional view of a hooking portion in a terminal according to a second embodiment example of the present invention. [Figure 6] It is an explanatory view showing a mechanism for inserting a rod-shaped member into a hooking portion of a terminal according to a second embodiment example of the present invention to separate a spring member from a base portion. [Figure 7] It is a perspective view of a terminal according to a third embodiment example of the present invention. [Figure 8] It is a perspective view of a terminal according to a fourth embodiment example of the present invention. 【Modes for Carrying Out the Invention】 【0019】 The following describes a terminal according to an embodiment of the present invention. First, the terminal according to the first embodiment of the present invention will be described. Figure 1 is a perspective view of the terminal according to the first embodiment of the present invention. Figure 2 is a cross-sectional view of the hook portion in the terminal according to the first embodiment of the present invention. Figure 3 is an explanatory diagram showing the mechanism in the terminal according to the first embodiment of the present invention in which a rod-shaped member is inserted into the hook portion to separate the spring member from the base portion. 【0020】 As shown in Figure 1, the terminal 1 according to an embodiment of the present invention is provided with a terminal body 10 to which an electric wire (not shown) is connected at one end 11 and to which a mating terminal (not shown) is electrically connected at the other end 12. Specifically, the terminal body 10 has a base portion 20 connected to the electric wire and a spring member 30 attached to the base portion 20 and electrically connected to the mating terminal. The spring member 30 is attached to the other end 12 of the base portion 20. 【0021】 At least a portion of the base portion 20 to which the spring member 30 is not attached is a wire connection portion 13 to which the electric wire is connected. From the above, the base portion 20 has a wire connection portion 13 on one end 11 in the longitudinal direction L of the base portion 20. In terminal 1, the wire connection portion 13 is a flat plate-shaped portion. 【0022】 The electric wire is a thick, high-current wire with an insulating coating covering the internal conductor. The conductor exposed at the end of the electric wire, where the insulating coating is stripped, is connected to the electric wire connection part 13. The electric wire can also be used as a wire harness by connecting it to the electric wire connection part 13 of the base part 20. 【0023】 The other end 12 of the base portion 20 is provided with a pair of side walls 21 arranged across an insertion space 14 into which the mating terminal is inserted, and a side wall connecting portion 22 that connects the side walls 21. Two side walls 21 constituting the base portion 20 are provided at a predetermined distance apart in the width direction W. The side wall connecting portion 22 constituting the base portion 20 is configured to connect one end of the pair of side walls 21 in the height direction H in the width direction W. Furthermore, the other end 12 of the base portion 20 has an opening above it that faces the side wall connecting portion 22 in the height direction H. Therefore, the other end 12 of the base portion 20 is formed in a U shape when viewed from the longitudinal direction L. 【0024】 A spring member 30 is attached to each of the pair of side walls 21. Thus, the two spring members 30 are positioned to face each other across the insertion space 14. The spring member 30 positioned between the pair of side walls 21 contacts the opposing terminal inserted into the insertion space 14, with the side wall 21 acting as a reaction force to exert a biasing force. 【0025】 Furthermore, of the pair of side walls 21, one side wall 21 is configured to be continuous with the wire connection part 13 in the longitudinal direction L. In terminal 1, the rear side wall 21 in the width direction W is continuous with the wire connection part 13. Also, in terminal 1, the front side wall 21 in the width direction W and the side wall connecting part 22 are configured not to be continuous with the wire connection part 13. Note that the rear side wall 21 in the width direction W and the spring member 30 attached to the rear side wall 21 and the front side wall 21 in the width direction W and the spring member 30 attached to the front side wall 21 have the same configuration, so for convenience, the following explanation of the side wall 21 and the spring member 30 will use the front side wall 21 in the width direction W and the spring member 30 attached to the front side wall 21. 【0026】 As shown in Figure 1, the spring member 30 has a spring portion 31 that contacts the side wall 21 so as to act as a biasing force with the side wall 21 acting as a reaction force, and a connecting portion 32 that is connected to the side wall 21. The spring member 30 is fixed to the base portion 20 at the connecting portion 32. The spring portion 31 is provided on the inner surface of the side wall 21 and extends in a planar manner on the inner surface of the side wall 21. The connecting portion 32 is provided on the outer surface 23 of the side wall 21 and extends in a planar manner on the outer surface 23 of the side wall 21. The connecting portion 32 is continuous with the spring portion 31 via a connecting portion 33. 【0027】 The spring portion 31 is provided above the height H of the pair of side walls 21. The connecting portion 32 is also provided above the height H of the pair of side walls 21. From the above, the spring member 30 is formed in an inverted U shape when viewed from the longitudinal direction L. Note that in terminal 1, the spring portion 31 is not provided below the height H of the pair of side walls 21, and the connecting portion 32 is not provided below the height H of the pair of side walls 21. On the other hand, the positions of the spring portion 31 and the connecting portion 32 are not particularly limited. For example, the spring portion 31 may be provided not only above the height H of the pair of side walls 21 but also below, and the connecting portion 32 may be provided not only above the height H of the pair of side walls 21 but also below. Furthermore, the spring portion 31 is provided below the height H of the pair of side walls 21, and does not have to be provided above the height H of the pair of side walls 21, and the connecting portion 32 is provided below the height H of the pair of side walls 21, and does not have to be provided above the height H of the pair of side walls 21. 【0028】 As shown in Figure 1, the spring member 30 is connected to the base portion 20 by a joint portion 40. Specifically, a connecting portion 32 provided on the outer surface 23 of the side wall 21 is connected to the base portion 20 by the joint portion 40. In terminal 1, the joint portion 40 extends substantially in a straight line in the longitudinal direction of the spring member 30 (i.e., the longitudinal direction L of the base portion 20). In terminal 1, one joint portion 40 is provided for each spring member 30. From the above, one joint portion 40 is provided on the same plane as the side wall 21 of the base portion 20. Note that the shape and number of joint portions 40 are not particularly limited and can be appropriately selected according to the usage conditions of terminal 1, etc. 【0029】 In the terminal of the present invention, at least one of the spring member 30 and the base portion 20 has a hook portion 41 into which a jig for releasing the connection of the joint portion 40 can be inserted. In the terminal 1 according to the first embodiment of the present invention, the hook portion 41 is provided on the spring member 30. Specifically, the hook portion 41 is provided on the connecting portion 32 of the spring member 30, which extends in a planar manner on the outer surface of the side wall 21. 【0030】 As shown in Figure 1, in terminal 1, the hook portion 41 is provided near the joint portion 40. Also, in terminal 1, the hook portion 41 is provided at a portion corresponding to the edge of the spring member 30. Specifically, the hook portion 41 is provided at the lower end portion 34 of the planar extending connecting portion 32 that faces the side wall connecting portion 22, that is, at the tip facing the side wall connecting portion 22. From the above, the hook portion 41 is provided on the side wall connecting portion 22 side of the joint portion 40. 【0031】 Furthermore, the hook portion 41 is provided near the longitudinal end of the joint portion 40. In terminal 1, one hook portion 41 is provided near each of the longitudinal ends of the joint portion 40. Note that in terminal 1, no hook portion 41 is provided in the longitudinal center of the joint portion 40. 【0032】 As shown in Figures 1 and 2, in terminal 1, the hook portion 41 has a shape in which the lower end 34 of the connecting portion 32, which extends in a planar manner, bulges locally outward in the width direction W. The hook portion 41 has a roof portion 42 that extends in the planar direction (outer direction) of the base portion 20. The roof portion 42 extends along the direction of extension of the outer surface 23 of the side wall 21 of the base portion 20, at a predetermined distance from the outer surface 23 of the side wall 21 of the base portion 20. 【0033】 Furthermore, the hook portion 41 has an expanded portion 43 between the roof portion 42 and the joint portion 40 that gradually bulges outward in the width direction W. The roof portion 42 and the expanded portion 43 are continuous, and the space portion 44 of the hook portion 41 is formed by the roof portion 42 and the expanded portion 43. Also, the side of the space portion 44 on the side of the side wall connecting portion 22 is an opening 45. From the above, the opening 45 of the hook portion 41 is a portion that opens in the direction opposite to the joint portion 40 when viewed from the space portion 44, that is, a portion that opens towards the side wall connecting portion 22. 【0034】 The hook portion 41 is formed starting from a point on the same plane as the interface 46 between the spring member 30 and the base portion 20 at the joint portion 40. That is, the expansion portion 43 bulges outward in the width direction W, starting from a point on the same plane as the interface 46 between the connecting portion 32 at the joint portion 40 and the outer surface 23 of the side wall 21 of the base portion 20. 【0035】 The method for forming the joint 40 is not particularly limited and includes welding methods such as laser welding, arc welding, and friction stir welding, as well as electron beam welding. Of these, it is preferable that the joint 40 be formed by laser welding, as this can reliably improve the joint strength between the spring member 30 and the base 20, and also reduce the area of ​​the joint 40, making it easier to separate the spring member 30 from the base 20. 【0036】 For example, the base portion 20 can be made of pure copper. For example, the spring member 30 can be made of a composite material in which a copper alloy is plated with metal. Examples of metal plating include silver plating and tin plating. The fact that the spring member 30 is made of a composite material with metal plating improves wear resistance and electrical connectivity. The conductor material of the electric wire can be the same material as the base portion 20, for example, pure copper. 【0037】 Next, we will explain how to separate the spring member 30 from the base portion 20 using the hook portion 41 of terminal 1. 【0038】 As shown in Figure 3, a rod-shaped member 100 can be used as a jig to separate the spring member 30 from the base 20 using the hook portion 41. As will be described later, the rod-shaped member 100 inserted into the hook portion 41 functions as a jig to separate the spring member 30 from the base 20. Therefore, the connection of the joint portion 40 can be released with a simple jig. 【0039】 Specifically, the worker inserts the tip 101 of the rod-shaped member 100 into the space 44 through the opening 45 of the hook portion 41 from the direction of the side wall connecting portion 22. Then, the worker brings the tip 101 of the rod-shaped member 100 into contact with the roof portion 42 of the hook portion 41, pushing the roof portion 42 outward in the width direction W. As the roof portion 42 of the hook portion 41 is pushed outward in the width direction W, the roof portion 42 is subjected to stress outward in the width direction W, and as a result, the connecting portion 32 of the spring member 30 is subjected to stress outward in the width direction W. As the connecting portion 32 of the spring member 30 is subjected to stress outward in the width direction W, the joint 40 that connected the connecting portion 32 of the spring member 30 and the outer surface 23 of the side wall 21 of the base portion 20 is broken at the interface 46. As the joint 40 breaks at the interface 46, the connecting portion 32 of the spring member 30 separates from the outer surface 23 of the side wall 21 of the base portion 20. 【0040】 In terminal 1, the spring member 30 has a hook portion 41 into which a jig (a rod-shaped member 100 in Figure 3) for releasing the connection between the spring member and the base portion can be inserted. By inserting the rod-shaped member 100 into the hook portion 41 and applying stress to the rod-shaped member 100 to peel the spring member 30 away from the base portion 20, the spring member 30 is easily separated from the base portion 20, and the connection of the joint portion 40 is released. Furthermore, in terminal 1, since the spring member 30 is connected to the base portion 20 at the joint portion 40, the joint strength between the spring member 30 and the base portion 20 that constitute the terminal body 10 is not impaired. Specifically, in terminal 1, the joint portion 40 is formed by laser welding. 【0041】 As described above, in terminal 1, multiple components (in terminal 1, the spring component 30 and the base component 20) are joined by laser welding or the like, resulting in excellent joint strength between the multiple components, while also facilitating the disassembly of terminal 1 into its individual components (in terminal 1, it is disassembled into the spring component 30, which is a composite material of copper alloy with silver plating, and the base component 20, which is pure copper). Therefore, in terminal 1, the components constituting terminal 1 can be separated and sorted according to the same material type, thus improving the recyclability of terminal 1. 【0042】 Furthermore, in terminal 1, the hook portion 41 is formed starting from a point on the same plane as the interface 46 between the spring member 30 and the outer surface 23 of the side wall 21 of the base portion 20 at the joint portion 40. Therefore, the stress applied to the rod-shaped member 100 by the worker is efficiently transmitted to the joint portion 40 between the spring member 30 and the base portion 20, making it even easier to separate the spring member 30 from the base portion 20. 【0043】 Furthermore, since the hook portion 41 is provided near the joint portion 40 in terminal 1, the stress applied to the rod-shaped member 100 by the worker is transmitted more reliably to the joint portion 40 between the spring member 30 and the base portion 20, making it even easier to separate the spring member 30 from the base portion 20. 【0044】 Furthermore, in terminal 1, the hook portion 41 is provided on the lower end portion 34, which is the edge of the spring member 30, making it easier to insert the rod-shaped member 100 into the hook portion 41 and improving work efficiency. 【0045】 Furthermore, in terminal 1, the joint portion 40 extends in the longitudinal direction L of the spring member 30, thereby reliably improving the joint strength between the spring member 30 and the base portion 20. Also, in terminal 1, the hook portion 41 is provided near the longitudinal end of the joint portion 40, allowing the spring member 30 and the base portion 20 to be separated sequentially from the longitudinal end of the joint portion 40 toward the center. Therefore, the stress required when separating the spring member 30 from the base portion 20 can be reduced. From the above, in terminal 1, the joint portion 40 extends in the longitudinal direction L of the spring member 30, and the hook portion 41 is provided near the longitudinal end of the joint portion 40, thereby reliably improving the joint strength between the spring member 30 and the base portion 20, while further facilitating the separation of the spring member 30 from the base portion 20. 【0046】 Furthermore, in terminal 1, the hook portion 41 has a roof portion 42 that extends along the outer surface 23 of the side wall 21 of the base portion 20, so that stress on the rod-shaped member 100 can be applied in a direction perpendicular to the extending direction of the outer surface 23 of the side wall 21 of the base portion 20 (i.e., the width direction W), which simplifies the removal of the spring member 30 from the base portion 20 and further facilitates the separation of the spring member 30 from the base portion 20. 【0047】 Next, a terminal according to a second embodiment of the present invention will be described. Since the main components of the terminal according to the second embodiment are the same as those of the terminal according to the first embodiment, the same reference numerals will be used to describe the same components as those of the terminal according to the first embodiment. 【0048】 Figure 4 is a perspective view of a terminal according to a second embodiment of the present invention. Figure 5 is a cross-sectional view of the hook portion in the terminal according to a second embodiment of the present invention. Figure 6 is an explanatory diagram showing the mechanism in which a rod-shaped member is inserted into the hook portion to separate the spring member from the base portion in the terminal according to a second embodiment of the present invention. 【0049】 In the terminal 1 according to the first embodiment, the hook portion 41 is provided on the spring member 30, and the lower end portion 34 of the connecting portion 32, which extends in a planar manner, has a shape that bulges locally outward in the width direction W. Instead, as shown in Figure 4, in the terminal 2 according to the second embodiment, a hook portion 41 is provided on the base portion 20 into which a jig for releasing the connection of the joint portion 40 can be inserted. Specifically, the hook portion 41 is provided on the outer surface 23 of the side wall 21 of the base portion 20. 【0050】 As shown in Figure 4, even in terminal 2, the hook portion 41 is provided near the joint portion 40. Also, in terminal 2, the hook portion 41 is provided at a location corresponding to the edge of the spring member 30. Specifically, the hook portion 41 is provided at a location on the outer surface 23 of the side wall 21 that corresponds to the lower end portion 34 of the connecting portion 32 which extends in a planar manner and faces the side wall connecting portion 22. From the above, it can be seen that the hook portion 41 is provided on the side wall connecting portion 22 side of the joint portion 40. 【0051】 In terminal 2, the joint portion 40 extends in a substantially straight line in the longitudinal direction of the spring member 30 (i.e., the longitudinal direction L of the base portion 20), and the hook portion 41 extends along the longitudinal direction of the joint portion 40. In terminal 2, the hook portion 41 is provided near the joint portion 40, extending from both ends in the longitudinal direction to the center. 【0052】 As shown in Figures 4 and 5, in terminal 2, the hook portion 41 has a recess 52 formed in the thickness direction of the side wall 21 on the outer surface 23 of the side wall 21 of the base portion 20. In terminal 2, the recess 52 is a notch formed on the outer surface 23 of the side wall 21 of the base portion 20 in the thickness direction of the side wall 21. In terminal 2, the joint portion 40 also extends in a substantially straight line in the longitudinal direction of the spring member 30 (i.e., the longitudinal direction L of the base portion 20). The recess 52 has a length approximately equal to the length of the joint portion 40 and extends in a substantially straight line, substantially parallel to the joint portion 40. Furthermore, both ends of the substantially straight recess 52 are located near both ends of the joint portion 40 in the longitudinal direction. 【0053】 In addition, in terminal 2, the hook portion 41 has a roof portion 42 that extends in the planar direction (outer direction) of the base portion 20. In terminal 2, the lower end portion 34 of the connecting portion 32, which extends planarly along the outer surface 23 of the side wall 21 of the base portion 20, and its vicinity constitute the roof portion 42. The roof portion 42 extends along the direction of extension of the outer surface 23 of the side wall 21 of the base portion 20, while covering a part of the recess 52 formed in the outer surface 23 of the side wall 21 of the base portion 20. 【0054】 Furthermore, the roof portion 42 is formed on substantially the same plane as the interface 46 between the spring member 30 and the base portion 20 at the joint portion 40. As described above, the hook portion 41 of the terminal 2 is also formed starting from a point on the same plane as the interface 46 between the connecting portion 32 at the joint portion 40 and the outer surface 23 of the side wall 21 of the base portion 20. 【0055】 Furthermore, the cross-sectional shape of the recess 52 of the hook portion 41 in the width direction W is not particularly limited, but in the terminal 2, the recess 52 becomes deeper as it moves away from the side wall connecting portion 22, and has a shape having an inclined portion 50 that forms the bottom of the recess 52 and a side wall portion 51 formed along the width direction W (the thickness direction of the side wall 21). The roof portion 42 of the connecting portion 32, the inclined portion 50 of the recess 52 and the side wall portion 51 form the space 44 of the hook portion 41. Also, the side of the space 44 facing the side wall connecting portion 22 is an opening 45. From the above, the opening 45 of the hook portion 41 is a portion that opens in the direction opposite to the joint portion 40 when viewed from the space 44, that is, a portion that opens towards the side wall connecting portion 22. 【0056】 At terminal 2, a recess 52 is formed inward in the width direction W, starting from a point on the same plane as the interface 46 between the connecting portion 32 at the joint 40 and the outer surface 23 of the side wall 21 of the base portion 20. 【0057】 Next, we will explain how to separate the spring member 30 from the base portion 20 using the hook portion 41 of terminal 2. 【0058】 As shown in Figure 6, even at terminal 2, a rod-shaped member 100 can be used as a jig to separate the spring member 30 from the base portion 20 using the hook portion 41. The rod-shaped member 100 inserted into the hook portion 41 functions as a jig to separate the spring member 30 from the base portion 20. 【0059】 Specifically, the worker inserts the tip 101 of the rod-shaped member 100 into the recess 52 forming the space 44 through the opening 45 of the hook portion 41, from the direction of the side wall connecting portion 22. Then, the worker brings the tip 101 of the rod-shaped member 100 into contact mainly with the roof portion 42 of the hook portion 41, pushing the roof portion 42 outward in the width direction W. As the roof portion 42 of the hook portion 41 is pushed outward in the width direction W, and the roof portion 42 is subjected to outward stress in the width direction W, the connecting portion 32 of the spring member 30 is subjected to outward stress in the width direction W. As the connecting portion 32 of the spring member 30 is subjected to outward stress in the width direction W, the joint 40 that connected the connecting portion 32 of the spring member 30 and the outer surface 23 of the side wall 21 of the base portion 20 is broken at the interface 46. As the joint 40 breaks at the interface 46, the connecting portion 32 of the spring member 30 separates from the outer surface 23 of the side wall 21 of the base portion 20. 【0060】 In terminal 2, the side wall 21 of the base portion 20 is provided with a hook portion 41 having a recess 52 into which a jig (a rod-shaped member 100 in Figure 6) for releasing the connection between the spring member and the base portion can be inserted. By inserting the rod-shaped member 100 into the hook portion 41 and applying stress to the rod-shaped member 100 to peel the spring member 30 away from the base portion 20, the spring member 30 is easily separated from the base portion 20, and the connection of the joint portion 40 is released. Furthermore, in terminal 2 as well, since the spring member 30 is connected to the base portion 20 at the joint portion 40, the joint strength between the spring member 30 and the base portion 20 that constitute the terminal body 10 is not impaired. 【0061】 From the above, in terminal 2 as well, multiple components (in terminal 1, the spring member 30 and the base part 20) are joined by laser welding or the like, resulting in excellent joint strength between multiple components, while also making it easy to disassemble terminal 2 into its individual components (in terminal 2 as well, it can be disassembled into the spring member 30, which is a composite material of copper alloy with silver plating, and the base part 20, which is pure copper). Therefore, in terminal 2 as well, the components constituting terminal 1 can be separated and sorted according to the same material type, thus improving the recyclability of terminal 2. 【0062】 Furthermore, in terminal 2, the recess 52 of the hook portion 41 has an inclined portion 50 in which the recess 52 deepens as it moves away from the side wall connecting portion 22, making it easy to insert the rod-shaped member 100 into the recess 52, and also facilitating the outward pushing operation of the roof portion 42 in the width direction W using the rod-shaped member 100. 【0063】 Next, a terminal according to a third embodiment of the present invention will be described. Since the main components of the terminal according to the third embodiment are the same as those of the terminal according to the first embodiment, the same reference numerals will be used to describe the same components as those of the terminal according to the first embodiment. Figure 7 is a perspective view of the terminal according to the third embodiment of the present invention. 【0064】 In the terminal 1 according to the first embodiment, the joint portion 40 extends substantially in a straight line in the longitudinal direction of the spring member 30 (i.e., the longitudinal direction L of the base portion 20) and is provided as one on the same plane as the side wall 21 of the base portion 20. Instead, as shown in Figure 7, in the terminal 3 according to the third embodiment, multiple joint portions 40 are provided on the same plane as the base portion 20, and hook portions 41 are provided near each of the multiple joint portions 40. In terminal 3, two joint portions 40 are provided on the same plane as the side wall 21 of the base portion 20, and hook portions 41 are provided near each of the two joint portions 40. 【0065】 In terminal 3, a joint portion 40-1 is provided at one end 60 of the spring member 30 in the longitudinal direction (i.e., the longitudinal direction L of the base portion 20), and a joint portion 40-2 is provided at the other end 61. No joint portion 40 is provided at the longitudinal central portion 62 of the spring member 30. Therefore, the joint portion 40 of terminal 3 is localized compared to the joint portion of terminal 1 according to the first embodiment. 【0066】 Furthermore, one hook portion 41-1 is provided near the joint portion 40-1, and one hook portion 41-2 is provided near the joint portion 40-2. In terminal 3, similar to terminal 1 according to the first embodiment, both hook portions 41-1 and 41-2 are provided on the spring member 30, and the lower end portion 34 of the connecting portion 32, which extends in a planar manner, has a shape that bulges locally outward in the width direction W. 【0067】 In terminal 3, hooking portions 41 are provided near each of the multiple joint portions 40, so even if multiple joint portions 40 are formed, the separation of the spring member 30 from the base portion 20 can be easily facilitated. Furthermore, in terminal 3, the fact that the joint portions 40 are formed locally also facilitates the separation of the spring member 30 from the base portion 20. 【0068】 Next, a terminal according to the fourth embodiment of the present invention will be described. Since the main components of the terminal according to the fourth embodiment are the same as those of the terminals according to the first to third embodiments, the same reference numerals will be used to describe the same components as those in the terminals according to the first to third embodiments. Figure 8 is a perspective view of the terminal according to the fourth embodiment of the present invention. 【0069】 In terminals 1, 2, and 3 according to the first to third embodiments, the spring member 30 was separated from the base portion 20 by inserting a jig (a rod-shaped member 100 in terminals 1, 2, and 3) into the hook portion 41. However, as shown in Figure 8, in terminal 4 according to the fourth embodiment, a separation portion 65 is provided at the boundary portion 66 between the wire connection portion 13 of the base portion 20 and the side wall 21. In terminal 4, the spring member 30 is separated from the base portion 20 by separating the side wall 21 to which the spring member 30 is attached from the wire connection portion 13 of the base portion 20 at the separation portion 65. In terminal 4 as well, the rear side wall 21 in the width direction W is continuous with the wire connection portion 13, while the front side wall 21 and the side wall connecting portion 22 in the width direction W are not continuous with the wire connection portion 13. Therefore, at terminal 4, a separation portion 65 is provided at the boundary portion 66 between the rear side wall 21 and the wire connection portion 13 in the width direction W. 【0070】 From the above, terminal 4 is provided with a terminal body 10 having a base portion 20 connected to the electric wire 110, and a spring member 30 attached to the base portion 20 and electrically connected to the other terminal. The spring member 30 is connected to the base portion 20 at a joint, and a separation portion 65 is provided at the boundary portion 66 between the part of the base portion 20 to which the spring member 30 is attached and the electric wire connection portion 13 of the base portion 20. In Figure 8, the electric wire 110 is connected to the electric wire connection portion 13 of the base portion 20. Examples of electric wires 110 include thicker electric wires for high currents. 【0071】 At terminal 4, a notch is formed in the height direction H of the base portion 20 at the boundary portion 66 of the base portion 20, thereby reducing the height direction H of the base portion 20 and providing a separation portion 65. As described above, the mechanical strength of the separation portion 65 is slightly reduced compared to the wire connection portion 13 and the side wall 21. 【0072】 The worker grasps the wire connection portion 13 and the side wall 21 of the base portion 20 and applies stress in the width direction W to the base portion 20, thereby separating the base portion 20 at the separation portion 65 and separating the side wall 21 to which the spring member 30 is attached from the wire connection portion 13. Therefore, no jig such as a rod-shaped member is required for the terminal 4. 【0073】 In terminal 4, even if the base portion 20 and the spring member 30 are made of different materials, and furthermore, even if the base portion 20 and the conductor of the electric wire 110 are made of different materials, it is easy to separate them by material, thus improving the recyclability of terminal 4. 【0074】 In terminal 4, the separation portion 65 has a structure in which a notch is formed in the height direction H of the base portion 20, but the separation portion 65 is not particularly limited as long as it has a structure in which the mechanical strength is reduced compared to the wire connection portion 13 and the side wall 21. Other examples of the separation portion 65 include a linear groove formed in the thickness direction of the base portion 20, a structure of multiple holes formed in the thickness direction of the base portion 20, and a linear projection protruding in the thickness direction of the base portion 20. 【0075】 Next, other embodiments of the terminal of the present invention will be described. In the terminal according to the first embodiment, one hooking portion is provided near each of the longitudinal ends of the joint, and no hooking portion is provided in the longitudinal center of the joint. However, instead, a configuration in which a hooking portion is provided near only one of the longitudinal ends of the joint, or a configuration in which a hooking portion is provided near the center in addition to near both longitudinal ends of the joint. 【0076】 In the terminal according to the second embodiment, the recess constituting the hook portion has a length approximately equal to the length of the joint portion, and both ends of the substantially straight recess are located near both ends in the longitudinal direction of the joint portion. However, instead, the recess constituting the hook portion may be provided only near both ends in the longitudinal direction of the joint portion, or only near one end in the longitudinal direction of the joint portion. [Explanation of Symbols] 【0077】 Terminals 1, 2, 3, and 4 10 Terminal body 20 Base 21 Side wall 30 Spring component 40 Joint 41 Hook part 42 Roof section

Claims

[Claim 1] A terminal body is provided, having a base portion connected to an electric wire, and a spring member attached to the base portion and electrically connected to the mating terminal. The spring member is connected to the base portion at the joint portion, A terminal having a hook portion on at least one of the spring member and the base portion into which a jig for releasing the connection of the joint portion can be inserted. [Claim 2] The terminal according to claim 1, wherein the hook portion is formed starting from a point on the same plane as the interface between the spring member and the base portion at the joint. [Claim 3] The terminal according to claim 1 or 2, wherein the hooking portion is provided in the vicinity of the joint portion. [Claim 4] The terminal according to claim 1 or 2, wherein the hooking portion is provided at a portion corresponding to the edge of the spring member. [Claim 5] The terminal according to claim 1 or 2, wherein the joint portion is formed by laser welding. [Claim 6] The terminal according to claim 1 or 2, wherein a plurality of the joint portions are provided on the same plane of the base portion, and the hook portion is provided near each of the plurality of joint portions. [Claim 7] The terminal according to claim 1 or 2, wherein the joint extends in the longitudinal direction of the spring member, and the hook is provided near the end of the joint in the longitudinal direction. [Claim 8] The terminal according to claim 1 or 2, wherein the hook portion has a roof portion that extends in the planar direction of the base portion. [Claim 9] The terminal according to claim 1 or 2, wherein the jig is a rod-shaped member.