Wire with connection metal fitting

Abstract

To provide a wire with a connection metal fitting which can be manufactured more easily while suppressing peeling of a wire.SOLUTION: A wire 1 with a connection metal fitting comprises a wire 20 and a connection metal fitting 10. The connection metal fitting 10 includes a main body part 11 to which an exposed conductor part 211 of the wire 20 is connected, and a peeling suppression part 12 which is continuously disposed integrally with the main body part 11 and suppresses peeling of the exposed conductor part 211 from the main body part 11. The peeling suppression part 12 includes a regulation wall 121 to which a cover part 22 is abutted when the wire 20 is moved in a direction in which a peeling force acts on the exposed conductor part 211. The regulation wall 121 defines a space 1211 in which a portion of the cover part 22 can be disposed in a state where the wire 20 penetrates. In the space 1211, there is formed an opening 12111 which is opened in a direction crossing a penetration direction of the wire 20, and a width W2 of the opening 12111 is larger than a width W1 of the cover part 22.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to an electric wire with a connector fitting. [Background technology]

[0002] A conventional electric wire with a connector fitting of this type is disclosed in Patent Document 1. In Patent Document 1, the electric wire with a connector fitting includes an electric wire in which the conductor is covered with an insulating coating and the insulating coating at the tip end is stripped to expose the conductor, and a connector fitting to which the exposed conductor is connected. The connector fitting is formed with a converter that, when a radial external force acts on the electric wire, the electric wire abuts against the converter and converts the radial external force into a tensile force in the axial direction of the electric wire. This configuration prevents the conductor connected to the connector fitting from being pulled away from the connector fitting. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 2023-127258 Summary of the Invention [Problem to be solved by the invention]

[0004] In this way, it is preferable to make it possible to more easily manufacture an electric wire with a connector fitting that can prevent the electric wire from peeling off.

[0005] The present invention has been made in view of the problems inherent in the prior art, and an object of the present invention is to provide an electric wire with a connector that can be manufactured more easily while suppressing peeling of the electric wire. [Means for solving the problem]

[0006] An electric wire with connecting fitting according to one aspect of the present invention comprises an electric wire having a conductor portion and a covering portion covering the conductor portion, and a connecting fitting having a main body portion to which an exposed conductor portion, which is a portion of the conductor portion exposed from the covering portion, is connected, the connecting fitting comprising a peel-prevention portion integrally connected to the main body portion and preventing the exposed conductor portion from peeling off from the main body portion, the peel-prevention portion comprising a restricting wall against which the covering portion abuts when the electric wire moves in a direction in which a peel force acts on the exposed conductor portion, the restricting wall defining a space in which a portion of the covering portion can be positioned with the electric wire penetrated, the space comprising an opening formed in a direction intersecting the direction in which the electric wire penetrates, the width of the opening being greater than the width of the covering portion. [Effects of the Invention]

[0007] According to the present invention, it is possible to provide an electric wire with a connector fitting that can be manufactured more easily while suppressing peeling of the electric wire. [Brief explanation of the drawings]

[0008] [Figure 1] FIG. 1 is a perspective view of an electric wire and a connector before being formed as an example of an electric wire with a connector fitting, as viewed from the front side. [Figure 2] FIG. 2 is a perspective view of an example of an electric wire with a connector fitting, seen from the back side, of an electric wire and a connector fitting before they are formed. [Figure 3] FIG. 3 is a perspective view of an example of an electric wire with a connector fitting, as viewed from the front side. [Figure 4] FIG. 4 is a partially cutaway view showing an example of an electric wire with a connector fitting as viewed along the direction in which the tunnel-shaped space penetrates. [Figure 5] FIG. 5 is a diagram showing an example of a method for inserting an electric wire when forming an example of an electric wire with a connecting fitting, and illustrates the state in which the exposed conductor portion of the electric wire is introduced into a tunnel-shaped space while being inclined obliquely. [Figure 6]FIG. 6 is a diagram showing an example of a method for inserting an electric wire when forming an example of an electric wire with a connecting fitting, and illustrates the state in which the sheath portion of the electric wire is introduced into the tunnel-shaped space while aligning it with the inner surface of the restricting wall. [Figure 7] FIG. 7 is a perspective view of the electric wire and the connector before the first modified example of the electric wire with connector fitting is formed, as viewed from the front side. [Figure 8] FIG. 8 is a perspective view of the electric wire and the connector before the first modified example of the electric wire with connector fitting is formed, as viewed from the back side. [Figure 9] FIG. 9 is a perspective view of a first modified example of an electric wire with a connector fitting, as viewed from the front side. [Figure 10] FIG. 10 is a perspective view of the electric wire and the connector before the second modified example of the electric wire with connector fitting is formed, as viewed from the front side. [Figure 11] FIG. 11 is a perspective view of the electric wire and the connector before the second modified example of the electric wire with connector fitting is formed, as viewed from the back side. [Figure 12] FIG. 12 is a perspective view of a second modified example of the electric wire with connector fitting, as viewed from the front side. [Figure 13] FIG. 13 is a diagram illustrating an example of a method for manufacturing a connector included in a second modified example of an electric wire with a connector fitting. [Figure 14] FIG. 14 is a perspective view of the electric wire and the connector before the third modified example of the electric wire with connector fitting is formed, as viewed from the front side. [Figure 15] FIG. 15 is a perspective view of the electric wire and the connector before the third modified example of the electric wire with connector fitting is formed, as viewed from the back side. [Figure 16] FIG. 16 is a perspective view of a third modified example of an electric wire with a connector fitting, as viewed from the front side. [Figure 17] FIG. 17 is a partially cutaway view showing a third modified example of the electric wire with connector fitting, as viewed along the direction in which the tunnel-shaped space penetrates. [Figure 18] FIG. 18 is a perspective view of the electric wire and the connector before the fourth modified example of the electric wire with connector fitting is formed, as viewed from the front side. [Figure 19]FIG. 19 is a perspective view of the electric wire and the connector before the fourth modified example of the electric wire with connector fitting is formed, as viewed from the back side. [Figure 20] FIG. 20 is a plan view showing the electric wire and the connector before the fourth modified example of the electric wire with connector fitting is formed. [Figure 21] FIG. 21 is a perspective view of a fourth modified example of an electric wire with a connector fitting, as viewed from the front side. [Figure 22] FIG. 22 is a partially cutaway view showing a fourth modified example of the electric wire with connector fitting, as viewed along the direction in which the tunnel-shaped space penetrates. DETAILED DESCRIPTION OF THE INVENTION

[0009] The electric wire with a connector fitting according to the present embodiment will be described in detail below with reference to the drawings. Note that the dimensional proportions in the drawings are exaggerated for the sake of convenience and may differ from the actual proportions.

[0010] The following describes an example of an electric wire with a connecting fitting that is formed by ultrasonically joining a conductor portion of an electric wire to a bus bar serving as a connecting fitting.

[0011] In the following description, the direction through which the space defined by the restricting wall in which the electric wires are arranged is defined as the front-rear direction, and the thickness direction of the main body part when the main body part is arranged so that the surface on which the ultrasonic bonded portion is formed is located on the upper side is defined as the up-down direction. The direction intersecting the front-rear direction and the up-down direction is defined as the width direction. The side on which the main body part is located is defined as the front side in the front-rear direction, and the side on which the peel suppression portion is located is defined as the rear side in the front-rear direction.

[0012] Note that the following embodiment and multiple modified examples include similar components, and therefore, in the following, the same reference numerals will be used to denote the similar components, and redundant explanations will be omitted.

[0013] 1 to 3, an electric wire with a connecting fitting 1 according to this embodiment includes a plate-shaped bus bar (connecting fitting) 10 and an electric wire 20 connected to the bus bar (connecting fitting) 10. The electric wire with a connecting fitting 1 is formed by physically and electrically connecting the conductor portion 21 of the electric wire 20 to the surface (surface 11a of the main body portion 11) of the bus bar (connecting fitting) 10.

[0014] Such an electric wire with connector fitting 1 can be used as part of a wire harness that is conductively connected to electrical equipment mounted on a vehicle or the like to distribute power.

[0015] The electric wire 20 has a conductor portion 21 that is formed using a conductive material such as copper or aluminum and that is disposed in the center, and a covering portion 22 that is formed using an electrically insulating material and that covers the outer periphery of the conductor portion 21. The electric wire 20 has an exposed conductor portion 211 that is a portion of the conductor portion 21 that is exposed from the covering portion 22. In this embodiment, the covering portion 22 on the tip side of the electric wire 20 is peeled off to expose the conductor portion 21, so that the exposed conductor portion 211 is formed at the tip of the electric wire 20.

[0016] The electric wire 20 may be either a main wire or a branch wire branched from the main wire in a wire harness formed by bundling a plurality of electric wires. The electric wire 20 may also be a signal wire, a power wire, or a ground wire.

[0017] The bus bar (connection fitting) 10 has a body 11 in the shape of a substantially rectangular plate. This body 11 is also made of a conductive material such as copper or aluminum. In this case, if the body 11 is made of aluminum, which has a lower specific gravity than copper, it is possible to reduce the weight of the electric wire with connection fitting 1.

[0018] Then, the exposed conductor portion 211 of the electric wire 20 is ultrasonically bonded to a predetermined position on the surface 11a of the main body portion 11, so that an ultrasonic bonded portion 30 is formed on the surface 11a of the main body portion 11.

[0019] In this embodiment, the exposed conductor portion 211 of the electric wire 20 is placed in the center of the width direction of the rear part of the main body portion 11, extending in the front-to-rear direction, and the exposed conductor portion 211 and the main body portion 11 are ultrasonically bonded together to form an ultrasonic bonded portion 30 that is elongated in the front-to-rear direction.

[0020] The front portion of the main body 11 is configured so that it can electrically connect to a connection object such as a terminal formed on a connector or a terminal connected to another electric wire.

[0021] As described above, in this embodiment, the main body 11 includes the conductor connecting portion 111 to which the exposed conductor portion 211 of the electric wire 20 is connected, and the connection terminal portion 112 to which an object to be connected is connected. In this embodiment, as described above, the main body 11 has a flat plate shape. The rear portion of the flat plate-shaped main body 11 serves as the conductor connecting portion 111, and the front portion serves as the connection terminal portion 112.

[0022] Incidentally, the ultrasonic bonded portion 30 formed by ultrasonically bonding the main body portion 11 and the exposed conductor portion 211 generally has a weaker peel strength than shear strength. In this embodiment, the shear strength is the limit strength that the ultrasonic bonded portion 30 can withstand when the electric wire 20 is pulled along the surface 11a of the main body portion 11. Furthermore, the peel strength is the limit strength that the ultrasonic bonded portion 30 can withstand when the electric wire 20 is moved in the normal direction (the direction in which the electric wire 20 is peeled off from the main body portion 11: upward) at the portion of the surface 11a of the main body portion 11 where the ultrasonic bonded portion 30 is formed.

[0023] Therefore, in this embodiment, the electric wire with connection fitting 1 is provided with a peel-prevention section 12, which makes it possible to prevent the exposed conductor section 211 from peeling off from the main body section 11. In this way, it is possible to prevent a decrease in the reliability of the connection between the exposed conductor section 211 and the main body section 11.

[0024] Specifically, by integrally connecting the peel-off prevention portion 12 to the rear end of the main body portion 11, the bus bar (connecting fitting) 10 is provided with a peel-off prevention portion 12 that prevents the exposed conductor portion 211 from peeling off from the main body portion 11.

[0025] In this way, in this embodiment, by integrally providing the peel-prevention portion 12 with the main body portion 11, there is no need to prepare a separate member for preventing the exposed conductor portion 211 from peeling off from the main body portion 11. This makes it possible to reduce the number of parts and more easily manufacture the electric wire with connection fitting 1 that can prevent peeling off of the electric wire 20. It also makes it possible to reduce the cost of manufacturing the electric wire with connection fitting 1.

[0026] In this embodiment, the peel-prevention section 12 includes a restricting wall 121 against which the covering section 22 abuts when the wire 20 moves upward (in the direction normal to the portion of the surface 11a of the main body 11 where the ultrasonic bonded section 30 is formed), which is the direction in which a peel force acts on the exposed conductor section 211. The restricting wall 121 is formed to extend rearward from the rear end of the center in the width direction of the main body 11, and is formed so that its length in the front-rear direction is greater than the plate thickness of the main body 11.

[0027] Furthermore, in this embodiment, the restricting wall 121 has a cross section taken along a plane perpendicular to the front-rear direction, which has a substantially semicircular arc shape, and a tunnel-like space 1211 penetrating in the front-rear direction is defined by this restricting wall 121. Then, by inserting the exposed conductor portion 211 of the electric wire 20 into the tunnel-like space 1211 from the rear, the exposed conductor portion 211 can be placed on the surface 11a of the main body 11.

[0028] As described above, in this embodiment, the restricting wall 121 having a substantially semi-cylindrical shape is formed so as to extend rearward from the rear end of the central portion in the width direction of the main body 11. The restricting wall 121 defines a tunnel-like space 1211 in which a part of the covering portion 22 can be disposed with the electric wire 20 passing through.

[0029] By providing such a restricting wall 121, when the electric wire 20 is moved upward with the exposed conductor portion 211 connected to the main body portion 11, the covering portion 22 of the electric wire 20 comes into contact with the inner surface 121b of the restricting wall 121. By making the covering portion 22 of the electric wire 20 come into contact with the inner surface 121b of the restricting wall 121, a force in the shearing direction acts on the exposed conductor portion 211. This makes it possible to prevent a peeling force from acting on the exposed conductor portion 211 and causing the exposed conductor portion 211 to peel off from the main body portion 11.

[0030] At this time, in this embodiment, the shape of the restricting wall 121 is made to be a substantially arc shape that follows the side surface of the covering portion 22 of the electric wire 20. Therefore, it is possible to suppress localized stress when the electric wire 20 abuts against the restricting wall 121, and it is possible to more reliably suppress deformation of the restricting wall 121 due to the electric wire 20 being moved upward.

[0031] Furthermore, in this embodiment, the peeling suppression portion 12 includes extension walls 122 that are continuous with the end portions 121a of the restriction walls 121. Specifically, the extension walls 122 are continuous with each of the end portions 121a of the substantially semi-cylindrical restriction walls 121 toward the outside in the width direction.

[0032] In this way, the extension wall 122 can also suppress the movement of the electric wire 20 in the direction in which the peeling force acts on the exposed conductor portion 211, thereby more reliably suppressing the peeling of the electric wire 20.

[0033] In this embodiment, each of the pair of extension walls 122 is connected to the rear end of the main body 11, and the restriction wall 121 is connected to the main body 11 via the pair of extension walls 122.

[0034] This makes it possible to further improve the strength of the peel-off preventive portion 12 and more reliably prevent the restricting wall 121 from being deformed by the electric wire 20 that moves in the direction in which the peel force acts on the exposed conductor portion 211 and comes into contact with the restricting wall 121. In this way, it becomes possible to more reliably prevent the electric wire 20 from being peeled off.

[0035] Furthermore, in this embodiment, an opening 12111 that opens downward (toward the rear surface 11b of the main body 11), which is a direction intersecting the front-rear direction (the direction in which the electric wire 20 penetrates), is formed in the tunnel-shaped space 1211. The width W2 of this opening 12111 is set to be larger than the width W1 of the covering portion 22 of the electric wire 20 (see FIG. 4).

[0036] This eliminates the need to align the extending direction of the electric wire with the penetrating direction (front-rear direction) of the space 1211 when inserting the exposed conductor portion 211 into the space 1211 to connect it to the main body 11. That is, as shown in Fig. 5, the exposed conductor portion 211 can be inserted from the rear into an opening 12112 that opens to the front of the space 1211 with the electric wire 20 tilted with respect to the penetrating direction (front-rear direction) of the space 1211.

[0037] This makes it easier to insert the exposed conductor portion 211 into the space 1211. Furthermore, by inserting the exposed conductor portion 211 obliquely into the opening 12112, the insertion distance (the distance that the electric wire 20 moves during insertion) can be shortened, which makes it possible to prevent the core wire of the exposed conductor portion 211 from fraying during the work.

[0038] 6 , after the exposed conductor portion 211 is obliquely inserted into the opening 12112 of the space 1211, the covering portion 22 can be brought into contact with the inner surface 121b of the restricting wall 121. That is, by moving the electric wire 20 forward while the covering portion 22 is in contact with the inner surface 121b of the restricting wall 121, the leading end of the covering portion 22 can be inserted into the opening 12112. In other words, by moving the electric wire 20 toward the main body portion 11 along the penetration direction of the space 1211 while being guided by the inner surface 121b of the restricting wall 121, the leading end of the covering portion 22 can be inserted into the opening 12112.

[0039] In this way, by making the width W2 of the opening 12111 larger than the width W1 of the covering portion 22 of the electric wire 20, it becomes easier to insert the exposed conductor portion 211 into the opening 12112 and the tip end of the covering portion 22 into the opening 12112. As a result, it becomes easier to connect the exposed conductor portion 211 to the main body 11.

[0040] Furthermore, since the width W2 of the opening 12111 is larger than the width W1 of the covering portion 22, when the exposed conductor portion 211 is connected to the main body portion 11, the wire 20 can be moved radially to move a portion of the covering portion 22 in and out of the space 1211.

[0041] In this manner, in this embodiment, the regulating wall 121 defines the space 1211 so that, with the exposed conductor portion 211 connected to the main body portion 11, the electric wire 20 can be moved radially to move a portion of the covering portion 22 in and out of the space 1211.

[0042] In this way, by increasing the degree of freedom of movement of the electric wire 20 after connecting the exposed conductor portion 211 to the main body portion 11, it is possible to save space in the electric wire arrangement space. For example, if, after connecting the exposed conductor portion 211 to the main body portion 11, the electric wire 20 extending in the front-rear direction is bent 90 degrees to restrict its direction downward, the space corresponding to one electric wire can be saved compared to a configuration in which the entire periphery of the space 1211 is surrounded by the restricting wall 121.

[0043] Furthermore, in this embodiment, the extrusion 123 is formed by extrusion processing in the exfoliation prevention section 12, and this extrusion 123 functions as the restriction wall 121. Then, simply by forming the extrusion 123 in the exfoliation prevention section 12, it is possible to prevent the exposed conductor 211 from being exfoliated from the main body 11, and it is possible to more easily manufacture the electric wire with connection fitting 1 that is capable of preventing the exfoliation of the electric wire 20.

[0044] In this way, with the electric wire with connector fitting 1 according to this embodiment, it becomes possible to more easily manufacture the electric wire with connector fitting 1 that can prevent the electric wire 20 from peeling off.

[0045] If the electric wire 20 is moved downward with the exposed conductor portion 211 connected to the main body portion 11, the covering portion 22 will protrude outside the space 1211 and the electric wire 20 will bend significantly. However, in this state, a force in the shearing direction acts on the exposed conductor portion 211, and this does not have much effect on the peeling of the exposed conductor portion 211 from the main body portion 11.

[0046] (First Modification) The electric wire 20, the bus bar (connection fitting) 10 and the electric wire with connection fitting 1 may also be configured as shown in FIGS.

[0047] The electric wire with connection fitting 1 according to the first modified example has a configuration similar to that of the electric wire with connection fitting 1 shown in the above embodiment, and includes a plate-shaped bus bar (connection fitting) 10 and an electric wire 20 connected to the bus bar (connection fitting) 10. The conductor portion 21 of the electric wire 20 is physically and electrically connected to the surface (surface 11a of the main body portion 11) of the bus bar (connection fitting) 10, thereby forming the electric wire with connection fitting 1.

[0048] Furthermore, in the electric wire 1 with a connector fitting according to the first modified example, the peel-prevention portion 12 is integrally provided with the main body portion 11, thereby reducing the number of parts and facilitating the manufacture of the electric wire with a connector fitting 1 that can prevent peeling of the electric wire 20. This also reduces the cost of manufacturing the electric wire with a connector fitting 1.

[0049] The peel-off suppression part 12 also includes a restricting wall 121 against which the covering part 22 abuts when the electric wire 20 moves upward (in the normal direction at the part where the ultrasonic bonded part 30 is formed on the surface 11a of the main body part 11), which is the direction in which the peel force acts on the exposed conductor part 211. The restricting wall 121 is formed so as to extend rearward from the rear end of the central part in the width direction of the main body part 11, and is formed so that its length in the front-rear direction is greater than the plate thickness of the main body part 11.

[0050] Furthermore, the restricting wall 121 has a cross section taken along a plane perpendicular to the front-rear direction that has a substantially semicircular arc shape, and a tunnel-like space 1211 that penetrates in the front-rear direction is defined by this restricting wall 121. The exposed conductor portion 211 of the electric wire 20 is inserted into the tunnel-like space 1211 from the rear, so that the exposed conductor portion 211 can be placed on the surface 11a of the main body 11.

[0051] Also in the electric wire 1 with a connector fitting according to the first modification, an opening 12111 is formed in the tunnel-shaped space 1211. The opening 12111 is open downward (toward the rear surface 11b of the main body 11), which is a direction intersecting the front-rear direction (the direction in which the electric wire 20 passes through). The width W2 of the opening 12111 is made larger than the width W1 of the covering portion 22 of the electric wire 20.

[0052] Furthermore, in the electric wire 1 with connecting fitting according to the first modified example, the peel-off prevention portion 12 is formed with an embossed portion 123 by embossing, and this embossed portion 123 is made to function as a regulating wall 121.

[0053] The peeling prevention portion 12 also includes an extension wall 122 that is connected to the end portion 121 a of the restriction wall 121 .

[0054] In the electric wire 1 with a connecting fitting according to the first modification, an extension wall 122 is provided so as to extend outward in the width direction from one end 121a of a substantially semi-cylindrical restricting wall 121. One extension wall 122 is provided so as to extend to the rear end of the main body 11, and the restricting wall 121 is provided so as to extend to the main body 11 via the one extension wall 122.

[0055] This also makes it possible to achieve substantially the same functions and effects as the electric wire with connector 1 shown in the above embodiment.

[0056] (Second Modification) The electric wire 20, the bus bar (connection fitting) 10 and the electric wire with connection fitting 1 may also be configured as shown in FIGS.

[0057] The electric wire with connection fitting 1 according to the second modified example has a configuration similar to that of the electric wire with connection fitting 1 shown in the above embodiment, and includes a plate-shaped bus bar (connection fitting) 10 and an electric wire 20 connected to the bus bar (connection fitting) 10. The conductor portion 21 of the electric wire 20 is physically and electrically connected to the surface (surface 11a of the main body portion 11) of the bus bar (connection fitting) 10, thereby forming the electric wire with connection fitting 1.

[0058] Furthermore, in the electric wire 1 with a connector fitting according to the second modified example, the peel-prevention portion 12 is integrally provided with the main body portion 11, thereby reducing the number of parts and facilitating the manufacture of the electric wire with a connector fitting 1 that can prevent peeling of the electric wire 20. This also reduces the cost of manufacturing the electric wire with a connector fitting 1.

[0059] The peel-off suppression part 12 also includes a restricting wall 121 against which the covering part 22 abuts when the electric wire 20 moves upward (in the normal direction at the part where the ultrasonic bonded part 30 is formed on the surface 11a of the main body part 11), which is the direction in which the peel force acts on the exposed conductor part 211. The restricting wall 121 is formed so as to extend rearward from the rear end of the central part in the width direction of the main body part 11, and is formed so that its length in the front-rear direction is greater than the plate thickness of the main body part 11.

[0060] Furthermore, the restricting wall 121 has a cross section taken along a plane perpendicular to the front-rear direction that has a substantially semicircular arc shape, and a tunnel-like space 1211 that penetrates in the front-rear direction is defined by this restricting wall 121. The exposed conductor portion 211 of the electric wire 20 is inserted into the tunnel-like space 1211 from the rear, so that the exposed conductor portion 211 can be placed on the surface 11a of the main body 11.

[0061] In the electric wire 1 with a connecting fitting according to the second modification, an opening 12111 is formed in the tunnel-shaped space 1211. The opening 12111 is open downward (toward the back surface 11b of the main body 11), which is a direction intersecting the front-rear direction (the direction in which the electric wire 20 passes through). The width W2 of the opening 12111 is made larger than the width W1 of the covering portion 22 of the electric wire 20.

[0062] Furthermore, in the electric wire 1 with connection fitting according to the second modified example, the peeling prevention portion 12 also includes an extension wall 122 that is provided continuous with the end portion 121 a of the restriction wall 121 .

[0063] In the electric wire 1 with a connecting fitting according to the second modification, a pair of extension walls 122 are respectively connected outward in the width direction from the end 121a of the substantially semi-cylindrical restricting wall 121. One of the extension walls 122 is connected to the rear end of the main body 11, and the restricting wall 121 is connected to the main body 11 via one extension wall 122.

[0064] Specifically, a slit 13 that opens to one outer side in the width direction is formed between the main body portion 11 and the peeling prevention portion 12, so that one of the pair of extension walls 122 is not connected to the main body portion 11.

[0065] The peeling prevention portion 12 having such a configuration can be formed, for example, as shown in FIG. 13, by bending the piece portion 124 formed when the slit 13 is provided.

[0066] In addition, in the electric wire 1 with connecting fitting relating to the second modified example, it is also possible to form an embossed portion 123 formed by embossing in the peeling prevention portion 12, and to make this embossed portion 123 function as a regulating wall 121.

[0067] This also makes it possible to achieve substantially the same functions and effects as the electric wire with connector 1 shown in the above embodiment.

[0068] (Third Modification) The electric wire 20, the bus bar (connection fitting) 10 and the electric wire with connection fitting 1 may also be configured as shown in FIGS.

[0069] The electric wire with connection fitting 1 according to the third modified example has a configuration similar to that of the electric wire with connection fitting 1 shown in the above embodiment, and includes a plate-shaped bus bar (connection fitting) 10 and an electric wire 20 connected to the bus bar (connection fitting) 10. The conductor portion 21 of the electric wire 20 is physically and electrically connected to the surface (surface 11a of the main body portion 11) of the bus bar (connection fitting) 10, thereby forming the electric wire with connection fitting 1.

[0070] Furthermore, in the electric wire 1 with a connector fitting according to the third modified example, the peel-prevention portion 12 is integrally provided with the main body portion 11, thereby reducing the number of parts and facilitating the manufacture of the electric wire with a connector fitting 1 that can prevent peeling of the electric wire 20. This also reduces the cost of manufacturing the electric wire with a connector fitting 1.

[0071] The peel-off suppression part 12 also includes a restricting wall 121 against which the covering part 22 abuts when the electric wire 20 moves upward (in the normal direction at the part where the ultrasonic bonded part 30 is formed on the surface 11a of the main body part 11), which is the direction in which the peel force acts on the exposed conductor part 211. The restricting wall 121 is formed so as to extend rearward from the rear end of the central part in the width direction of the main body part 11, and is formed so that its length in the front-rear direction is greater than the plate thickness of the main body part 11.

[0072] Furthermore, the restricting wall 121 has a cross section taken along a plane perpendicular to the front-rear direction that has a substantially semicircular arc shape, and a tunnel-like space 1211 that penetrates in the front-rear direction is defined by this restricting wall 121. The exposed conductor portion 211 of the electric wire 20 is inserted into the tunnel-like space 1211 from the rear, so that the exposed conductor portion 211 can be placed on the surface 11a of the main body 11.

[0073] Also in the electric wire 1 with a connector fitting according to the third modified example, an opening 12111 is formed in the tunnel-shaped space 1211. The opening 12111 opens downward (toward the back surface 11b of the main body 11), which is a direction intersecting the front-rear direction (the direction in which the electric wire 20 passes through). The width W2 of the opening 12111 is made larger than the width W1 of the covering portion 22 of the electric wire 20.

[0074] Furthermore, the peeling prevention portion 12 includes an extension wall 122 that is continuous with the end portion 121 a of the restriction wall 121 .

[0075] In the electric wire 1 with a connection fitting according to the third modification, an extension wall 122 is provided so as to extend outward in the width direction from one end 121a of a substantially semi-cylindrical restricting wall 121. One extension wall 122 is provided so as to extend outward in the width direction from the end 121a. One extension wall 122 is provided so as to extend to the rear end of the main body 11, and the restricting wall 121 is provided so as to extend to the main body 11 via the one extension wall 122.

[0076] Furthermore, in the electric wire 1 with a connecting fitting according to the third modified example, the restricting wall 121 is provided with an extension wall 1212 extending in the circumferential direction of the restricting wall 121. This makes it possible to further narrow the range of movement of the electric wire 20 and more reliably prevent the electric wire 20 from peeling off. In the electric wire 1 with a connecting fitting according to the third modified example, as shown in FIG. 17 , the width W2 of the opening 12111 is the width between the end of one end 121a of the restricting wall 121 and the tip of the extension wall 1212. The amount of protrusion of the extension wall 1212 is set so that the width W2 is larger than the width W1 of the covering portion 22 of the electric wire 20.

[0077] This also makes it possible to achieve substantially the same functions and effects as the electric wire with connector 1 shown in the above embodiment.

[0078] (Fourth Modification) The electric wire 20, the bus bar (connection fitting) 10 and the electric wire with connection fitting 1 may also be configured as shown in FIGS.

[0079] The electric wire with connector fitting 1 according to the fourth modified example has a configuration similar to that of the electric wire with connector fitting 1 shown in the third modified example, and the restricting wall 121 is provided with an extension wall 1212 extending in the circumferential direction of the restricting wall 121. This makes it possible to further narrow the range of movement of the electric wire 20, and more reliably suppress peeling of the electric wire 20.

[0080] Here, in the electric wire 1 with a connection fitting according to the fourth modification, the extension wall 1212 is formed at a position (behind the restriction wall 121) that is shifted in the front-to-rear direction from the restriction wall 121. This makes it possible to form the restriction wall 121, which is convex upward, and the extension wall 1212, which is convex downward, at the same time using an upper mold and a lower mold.

[0081] That is, in the electric wire 1 with connecting fitting according to the fourth modified example, the peel prevention portion 12 is formed with an embossing portion 123 formed by embossing, and this embossing portion 123 is made to function as a regulating wall 121 including an extension wall 1212.

[0082] 22, in the electric wire 1 with a connecting fitting according to the fourth modification, the width W2 of the opening 12111 is the width between the end of one end 121a of the restricting wall 121 and the tip of the extension wall 1212. The protrusion amount of the extension wall 1212 is set so that the width W2 is larger than the width W1 of the covering portion 22 of the electric wire 20.

[0083] This also makes it possible to achieve substantially the same functions and effects as the electric wire with connector 1 shown in the third modified example.

[0084] [Actions and Effects] The following describes the characteristic configurations of the electric wire with connector fitting shown in the above embodiment and its modified example, and the effects obtained thereby.

[0085] The electric wire with connecting fitting 1 shown in the above embodiment and its modified examples includes an electric wire 20 having a conductor portion 21 and a covering portion 22 that covers the conductor portion 21. The electric wire with connecting fitting 1 also includes a bus bar (connecting fitting) 10 having a main body portion 11 to which an exposed conductor portion 211, which is a portion of the conductor portion 21 that is exposed from the covering portion 22, is connected.

[0086] This bus bar (connection metal fitting) 10 is provided with a separation prevention portion 12 that is integrally connected to a main body portion 11 and prevents the exposed conductor portion 211 from separating from the main body portion 11.

[0087] Here, the peeling prevention portion 12 includes a restriction wall 121 against which the covering portion 22 abuts when the electric wire 20 moves in a direction in which a peeling force acts on the exposed conductor portion 211.

[0088] Furthermore, the restricting wall 121 defines a space 1211 in which a part of the covering portion 22 can be disposed with the electric wire 20 passing through.

[0089] An opening 12111 is formed in the space 1211 so as to open in a direction intersecting the direction in which the electric wire 20 passes through, and the width W2 of the opening 12111 is larger than the width W1 of the covering portion 22.

[0090] In this way, the electric wire 1 with connecting fitting shown in the above embodiment and its modified example is provided with a peeling prevention portion 12, thereby making it possible to prevent the exposed conductor portion 211 from peeling off from the main body portion 11.

[0091] The bus bar (connection fitting) 10 is provided with the peel-off prevention portion 12 by integrally connecting the bus bar (connection fitting) to the main body 11. This eliminates the need to prepare a separate member for preventing the exposed conductor portion 211 from peeling off from the main body 11, thereby reducing costs. Furthermore, the number of parts can be reduced, making it easier to manufacture the electric wire with connection fitting 1 that can prevent the electric wire 20 from peeling off.

[0092] Furthermore, in the electric wire 1 with a connecting fitting shown in the above embodiment and its modified examples, the restricting wall 121 against which the covering portion 22 abuts when the electric wire 20 moves in a direction in which a peeling force acts on the exposed conductor portion 211 defines a space 1211 in which a part of the covering portion 22 is disposed. An opening 12111 that opens in a direction intersecting the direction in which the electric wire 20 passes through is formed in the space 1211, and the width W2 of this opening 12111 is set to be larger than the width W1 of the covering portion 22.

[0093] This eliminates the need to align the extending direction of the electric wire with the penetrating direction of the space 1211 when inserting the exposed conductor portion 211 into the space 1211 to connect it to the main body 11. As a result, it becomes easier to insert the exposed conductor portion 211 into the space 1211. Furthermore, with the exposed conductor portion 211 inserted into the space 1211, it becomes possible to move the electric wire 20 toward the main body 11 along the penetrating direction of the space 1211 while the covering portion 22 is abutting against the inner surface 121b of the restricting wall 121. That is, it becomes possible to move the electric wire 20 toward the main body 11 along the penetrating direction of the space 1211 while being guided by the inner surface 121b of the restricting wall 121. Therefore, it becomes easier to insert the exposed conductor portion 211 into the space 1211 and arrange it at a predetermined position in the main body 11. As a result, it becomes easier to connect the exposed conductor portion 211 to the main body 11.

[0094] In this way, by using the electric wire with connector fitting 1 shown in the above embodiment and its modified examples, it becomes possible to more easily manufacture the electric wire with connector fitting 1 that can prevent the electric wire 20 from peeling off.

[0095] Furthermore, the peeling prevention portion 12 may be formed with a embossed portion 123 formed by embossing, and the embossed portion 123 may function as the restriction wall 121 .

[0096] In this way, simply by forming the embossed portion 123 in the peel-prevention portion 12, it is possible to prevent the exposed conductor portion 211 from peeling off from the main body portion 11. Therefore, it becomes even easier to manufacture the electric wire with connection fitting 1 that can prevent the electric wire 20 from peeling off.

[0097] The peeling prevention portion 12 may also include an extension wall 122 that is connected to the end portion 121 a of the restriction wall 121 .

[0098] In this way, the extension wall 122 can also suppress the movement of the electric wire 20 in the direction in which the peeling force acts on the exposed conductor portion 211, thereby more reliably suppressing the peeling of the electric wire 20.

[0099] The restricting wall 121 may be connected to the main body 11 via an extension wall 122 .

[0100] This makes it possible to further improve the strength of the peel-off preventive portion 12, and more reliably prevent the restricting wall 121 from being deformed by the electric wire 20 that moves in the direction in which the peel force acts on the exposed conductor portion 211 and comes into contact with the restricting wall 121. As a result, it becomes possible to more reliably prevent the electric wire 20 from being peeled off.

[0101] The restricting wall 121 may also be substantially arc-shaped.

[0102] This allows the shape of the restricting wall 121 to be a shape that follows the side surface of the covering portion 22 of the electric wire 20, and makes it possible to prevent localized stress from being applied when the electric wire 20 abuts against the restricting wall 121. As a result, it becomes possible to more reliably prevent the restricting wall 121 from being deformed.

[0103] The restricting wall 121 may also include an extension wall 1212 extending in the circumferential direction of the restricting wall 121 .

[0104] This makes it possible to further narrow the range of movement of the electric wire 20, thereby making it possible to more reliably prevent the electric wire 20 from peeling off.

[0105] [others] Although the present embodiment has been described above, the present embodiment is not limited to this, and various modifications are possible within the scope of the gist of the present embodiment.

[0106] For example, it is possible to make an electric wire with a connector fitting by appropriately combining the configurations shown in the above-described embodiment and its modified examples.

[0107] Furthermore, in the above embodiment and its modified examples, the conductor connecting portion 111 and the connection terminal portion 112 are formed on the flat plate-shaped main body portion 11. However, the main body portion 11 does not have to be flat, and can have various shapes. For example, it is possible to provide a step in the main body portion 11 so that the conductor connecting portion 111 and the connection terminal portion 112 are at different height positions.

[0108] Furthermore, in the above embodiment and its modified examples, an approximately arc-shaped regulating wall 121 is exemplified, but the shape of the regulating wall 121 does not have to be approximately arc-shaped, and it can be various shapes such as a triangular shape or a trapezoidal shape.

[0109] Furthermore, the extension wall 1212 does not need to be provided to extend in the circumferential direction of the restriction wall 121, and the extension direction of the extension wall 1212 can be set to various directions. For example, the extension wall 1212 can be provided so as to extend downward from the lower end (end 121a) of the semicircular arc-shaped restriction wall 121. This also makes it possible to restrict the position of the electric wire 20 by the extension wall 1212. Furthermore, it becomes possible to use the extension wall 1212 to fix or position components during assembly.

[0110] The bus bar (connection fitting) 10 can also have various shapes. For example, the bus bar (connection fitting) 10 can be shaped such that the peel-prevention portion 12 is bent toward the back surface 11b of the main body 11. That is, the bus bar (connection fitting) 10 can be shaped such that the peel-prevention portion 12 is bent so as to be inclined downward relative to the main body 11. In this case, the electric wire 20 is inserted into the space 1211 that penetrates the main body 11 in the thickness direction, and the tip of the electric wire 20 is bent to connect the exposed conductor portion to the main body, thereby forming the electric wire with connection fitting 1.

[0111] In addition, the specifications of the main body, electric wires, and other details (shape, size, layout, etc.) can be changed as appropriate. [Explanation of symbols]

[0112] 1 Electric wire with connecting fitting 10 Bus bar (connecting fitting) 11 Main body 12 Peel prevention section 121 Regulatory Wall 121a End 1211 Space 12111 Opening 1212 Extension wall 122 Extension wall 123 Embossing section 20 Electric wire 21 Conductor 211 Exposed conductor 22 Covering part W1 Width of the coated part W2 Opening width

Claims

1. an electric wire having a conductor portion and a covering portion covering the conductor portion; a connecting fitting having a main body to which an exposed conductor portion, which is a portion of the conductor portion exposed from the coating portion, is connected; Equipped with the connecting fitting includes a separation prevention portion that is integrally connected to the main body portion and that prevents the exposed conductor portion from separating from the main body portion, the peel-off suppression portion includes a restriction wall against which the covering portion comes into contact when the electric wire moves in a direction in which a peel force acts on the exposed conductor portion, a space in which a part of the covering portion can be disposed with the electric wire passing through the space is defined by the restricting wall; an opening is formed in the space, the opening being open in a direction intersecting the direction in which the electric wire passes through, The width of the opening is greater than the width of the covering portion. Electric wire with connecting fittings.

2. The peel-off suppression portion has an embossed portion formed by embossing, The embossing portion is the restriction wall. The electric wire with connector according to claim 1 .

3. The peeling prevention portion includes an extension wall connected to an end of the restriction wall. The electric wire with connector according to claim 1 or 2.

4. The restricting wall is connected to the main body portion via the extension wall. The electric wire with connector according to claim 3.

5. The restriction wall has a substantially arcuate shape. The electric wire with connector according to claim 1 or 2.

6. The restricting wall includes an extension wall extending in a circumferential direction of the restricting wall. The electric wire with connector according to claim 5 .

Images