Connection and connection manufacturing process

Abstract

A terminal (10) is provided with a terminal body (11), which is made of a conductor, and a cap (12), which is provided on the terminal body (11) and is made of an insulator. The terminal body (11) includes a tubular electrical connection section (21). The cap (12) has a cylindrical shape with a longitudinal orientation. A portion of the cap (12) in the longitudinal direction is located inside the electrical connection section (21). A biting section (33), into which a pointed portion of the electrical connection section (21) bites or cuts radially inward, is formed on an outer circumferential surface of the cap (12).

Description

[Technical field]

[0001] The present disclosure relates to a connection and a connection manufacturing process. [State of the art]

[0002] Patent literature 1 discloses a connector comprising a connector body made of a conductor and a cap made of an insulator, which is provided on the connector body. The connector body includes a tubular electrical connection section for electrical connection to a matching terminal. The cap is provided on a pointed portion of the electrical connection section. The cap prevents contact of a finger with the electrical connection section or the like. [Bibliography][Patent Literature]

[0003] Patent literature 1: Japanese unexamined patent publication no. 2013-4391 [Summary of the invention][Problem that the invention seeks to solve]

[0004] For the structure of the connection as described above, it was investigated how to prevent the separation or detachment of the cap from the electrical connection section of the terminal body.

[0005] The present disclosure aims to provide a connection and a connection manufacturing process which enable the separation or detachment of a cap to be suppressed. [Means to solve the problem]

[0006] The present disclosure relates to a connection with a connection body made of a conductor and a cap provided on the connection body, wherein the cap is made of an insulator, wherein the connection body includes a tubular electrical connection section, wherein the cap has a cylindrical shape having a longitudinal direction, wherein a part of the cap is arranged longitudinally inside the electrical connection section, and wherein a biting or cutting section is formed on an outer circumferential surface of the cap, wherein a pointed part of the electrical connection section bites or cuts radially inwards into the biting section. [Effect of the invention]

[0007] According to the connection and connection manufacturing process of the present disclosure, the separation or detachment of the cap can be suppressed. [Brief description of the drawings] Fig. Figure 1 is a perspective view of a connection in one embodiment, Fig. Figure 2 is a section showing the perimeter of an electrical connection section of the terminal in the embodiment, and Fig. Figure 3 is a diagram showing a connection manufacturing process in the embodiment. [Embodiments of the invention][Description of embodiments of the present disclosure]

[0008] First, embodiments of the present disclosure are listed and described.

[0009] [1] The terminal of the present disclosure is provided with a terminal body which is made of a conductor and a cap which is provided on the terminal body, wherein the cap is made of an insulator, wherein the terminal body includes a tubular electrical connecting or connecting section, wherein the cap has a cylindrical shape which has a longitudinal direction, wherein a part of the cap is arranged in the longitudinal direction inside the electrical connecting section, and wherein a biting or cutting section is formed on an outer circumferential surface of the cap, wherein a pointed part of the electrical connecting section bites or cuts radially inwards into the biting section.

[0010] According to this configuration, since the cap is hooked onto the tip part of the electrical connection section at the biting or cutting section formed on the outer circumferential surface of the cap, and into which the electrical connection section of the terminal body bites or cuts, the escape or slippage of the cap from the electrical connection section can be suppressed.

[0011] [2] In the above described [1], the tip part of the electrical connection section may include a tapered section which is reduced in diameter towards a tip, and the tapered section may bite into the biting section.

[0012] According to this configuration, the exit of the cap from the electrical connection section can be more appropriately suppressed by the tapered section of the electrical connection section, which bites or cuts into the biting or cutting section.

[0013] [3] In the above described [1] or [2], the electrical connection section may include a depression or recess in an inner circumferential surface of the electrical connection section, and the cap may include a filling section which is formed by filling the depression.

[0014] According to this configuration, the filling section of the cap is filled into the recess or indentation provided in the inner circumferential surface of the electrical connection section, thereby locking the filling section to the recess of the electrical connection section in the longitudinal direction of the cap. In this way, the escape or displacement of the cap from the electrical connection section can be more reliably suppressed.

[0015] [4] In the above described [3], the filling section can be in direct or close contact with an inner surface of the depression.

[0016] According to this configuration, the filling section of the cap can be more appropriately locked onto the recess of the electrical connection section.

[0017] [5] A connection manufacturing method for manufacturing the connection of one of the above described [1] to [4] comprises an arranging step of arranging a cylindrical base material, which serves as a base material of the cap, on a plate-like base material, which serves as a base material of the connection body, and a forming step of forming the electrical connection section and the cap by bending a portion of the plate-like base material into a tubular shape to surround the cylindrical base material after the arranging step, wherein the biting or cutting section is formed on the outer circumferential surface of the cap in the forming step.

[0018] This manufacturing process makes it possible to create a connection that prevents the cap from separating or detaching due to the biting or cutting section. Furthermore, because the cap is simultaneously formed into its tubular shape during the forming step of the electrical connection section, this manufacturing process reduces assembly time and man-hours, resulting in lower manufacturing costs. [Details of the embodiment of the present disclosure]

[0019] Specific examples of a connection and a connection manufacturing process of the present disclosure are described below with reference to the drawings. For the sake of clarity, some components may be shown in an exaggerated or simplified manner in each drawing. Furthermore, the dimensional ratio of each part may differ in each figure.

[0020] It is noted that the term "tubular" or "canal-shaped," used in the description of this revelation, refers not only to a shape formed by a circumferential wall that extends continuously around the entire circumference in one direction, but also to a tubular shape formed by combining multiple components, and to a shape that has a cut or the like in a circumferential part, such as a C-shape. Furthermore, the "tubular" shapes include circular shapes, elliptical shapes, and polygonal shapes with angled or rounded corners.

[0021] As this is in Fig. As shown in Figure 1, a terminal 10 is provided with a terminal body 11, which is made of a conductor, and a cap 12, which is made of an insulator. (Connection body 11)

[0022] The connection body 11 is, for example, an integrally or in-piece formed product made of a metal material. The connection body 11 is manufactured from a plate-like base material B1, which will be described later. The connection body 11 is provided with an electrically connecting section 21 and a tube or drum section 22. The electrical connecting section 21 is connected to a matching terminal (not illustrated). A wire (not illustrated) is connected to the drum section 22.

[0023] A section or cross-section of Fig. Figure 2 is a longitudinal section of a part around the electrical connection section 21 along an axis of the terminal 10. The electrical connection section 21 has, for example, a hollow cylindrical shape. Of the two end parts of the electrical connection section 21 in an axial direction, the end part near the drum section 22 is a base end part, and the end part on the opposite side is a tip part. The tip part of the electrical connection section 21 includes a tapered section 23, the diameter of which is reduced towards an axial tip. Furthermore, the electrical connection section 21 includes recesses 24 in its inner circumferential surface. A plurality of the recesses 24 are arranged side by side in the axial direction of the electrical connection section 21.The recesses 24 are provided, for example, in a different configuration than the tapered section 23 in part of the electrical connection section 21. Furthermore, the recesses 24 are provided, for example, partially in one circumferential direction of the electrical connection section 21. (Cap 12)

[0024] As this is in Fig. As shown in Figure 2, the cap 12 has a cylindrical shape extending along the axis of the electrical connection section 21. The cap 12 is made, for example, of a synthetic resin. The cap 12 is positioned on the electrical connection section 21 such that a portion of the cap 12 is located longitudinally inside the electrical connection section 21. That is, the cap 12 has an inner part 31, which is located inside the electrical connection section 21, and a finger-prevention section 32, which is exposed to the outside of the electrical connection section 21 from the tip portion of the electrical connection section 21.For example, the outer diameter of the section 32 which prevents contact with a finger is equal to that of the tip of the electrical connection section 21 (in this embodiment a minimum outer diameter of the tapered section 23).

[0025] A biting or cutting section 33, into which the tapered section 23 of the electrical connection section 21 bites or cuts radially inwards, is formed on the outer circumferential surface of the cap 12. By forming the biting section 33 through the biting or cutting of the tapered section 23, the outer diameter of the inner part 31 is smaller than that of the section 32, which prevents contact with a finger. The tapered section 23 bites or cuts into the biting section 33, thereby contacting the section 32, which prevents contact with a finger, in the axial direction of the electrical connection section 21. Furthermore, the outer circumferential surface of the inner part 31 has a tapered shape in the biting section 33 along the inner circumferential surface of the tapered section 23. In the biting section 33, the...The outer circumferential surface of the inner part 31 is held in close or direct contact with the inner circumferential surface of the tapered section 23. In this way, the outer circumferential surface of the inner part 31 is locked to the inner circumferential surface of the tapered section 23 in an exit direction from the electrical connection section 21. This prevents the exit or escape of the cap 12 from the electrical connection section 21.

[0026] The cap 12 includes filling sections 34, which are formed by filling the recesses 24 of the electrical connection section 21. A plurality of filling sections 34 are configured to correspond to a plurality of recesses 24. Each filling section 34 is filled directly or precisely in each recess 24. That is, the filling section 34 is held in close or direct contact with the inner surface of the recess 24. The filling sections 34 are locked to the recesses 24 in the axial direction of the electrical connection section 21, making it less likely for the cap 12 to move axially relative to the electrical connection section 21.

[0027] Next, a manufacturing process for connection 10 will be described.

[0028] The manufacturing process of connection 10 includes a contour cutting step, a bending step, an arrangement step and a training step.

[0029] As this is in Fig. As shown in Figure 3, the connecting body 11 is made from the plate-like base material B1, such as a metal plate. The plate-like base material B1 includes, for example, a strip-like base section 41 and a plurality of connecting bodies 11a, 11b, 11c, and 11d, which are connected to the base section 41. Each connecting body 11a, 11b, 11c, 11d is a part of the plate-like base material B1. Fig. 3 shows the connection body 11a a state of the connection body after the contour cutting step, the connection body 11b a state of the connection body after the bending step, the connection body 11c a state of the connection body after the arranging step, and the connection body 11d a state of the connection body after the forming step.

[0030] In the contour cutting step, the connecting body 11a is formed from the plate-like base material B1 by a press machining process. After the contour cutting step, the connecting body 11a is in the form of a flat plate, which includes the electrical connection section 21 and the tube or drum section 22. Furthermore, the respective recesses or indentations 24 in the electrical connection section 21 are formed in the contour cutting step.

[0031] After the contour cutting step, the bending step for the connection body 11a is performed, forming the connection body 11b. In the bending step, the electrical connection section 21 and the drum section 22 are bent into a substantially U-shape.

[0032] After the bending step, the arranging step is performed. In this step, a cylindrical base material B2, which serves as the base material of the cap 12, is arranged on the electrical connection section 21 of the terminal body 11b. The terminal body 11c shows a state where the cylindrical base material B2 is arranged in the electrical connection section 21. The cylindrical base material B2 has, for example, a cylindrical shape with a uniform outer diameter in the longitudinal direction. The cylindrical base material B2 is formed, for example, by cutting a resin or plastic filament to a predetermined length. That is, no irregularities are present on the outer circumferential surface of the cylindrical base material B2 before the formation step, which will be described later.

[0033] In the assembly step, the cylindrical base material B2 is positioned inside the electrical connection section 21, which is bent into a generally U-shape. That is, the cylindrical base material B2 can be positioned through the electrical connection section 21, which is bent into a generally U-shape. Furthermore, in the assembly step, the cylindrical base material B2 is arranged such that a portion of it projects longitudinally from the electrical connection section 21. This portion of the cylindrical base material B2, which projects from the electrical connection section 21, serves as the finger-contact prevention section 32, as required by the subsequent assembly step.

[0034] Following the arrangement step, the training step is carried out. In the training step, the essentially U-shaped electrical connection section 21 is bent, for example, into a hollow cylindrical shape within the terminal body 11c to surround the cylindrical base material B2. In this training step, the electrical connection section 21 is bent into a tube-like shape such that a pair of free ends of the essentially U-shaped electrical connection section 21 contact each other. In this training step, the tapered section 23 is formed within the electrical connection section 21, as shown in the terminal body 11d. Fig. Figure 3 is shown. Furthermore, at this point, the tapered section 23 bites or cuts into the outer circumferential surface of the cylindrical base material B2, thereby forming the aforementioned biting or cutting section 33. Additionally, parts of the cylindrical base material B2 enter the respective recesses or indentations 24 of the electrical connection section 21 through the forming step. In this way, the aforementioned filling sections 34 are formed. The aforementioned cap 12 is formed in this way through the forming step. After the forming step, the connection 10 is completed, for example, by cutting the connection body 11d from the plate-like base material B1.

[0035] The effects of this embodiment are described. (1) The biting or cutting section 33, into which the tip portion of the electrical connection section 21 bites or cuts radially inwards, is or will be formed on the outer circumferential surface of the cap 12. According to this configuration, since the cap 12 is hooked onto the tip portion of the electrical connection section 21 at the biting section 33, which is or will be formed on the outer circumferential surface of the cap 12, the escape of the cap 12 from the electrical connection section 21 can be suppressed. (2) The tip portion of the electrical connection section 21 includes the tapered section 23, which is reduced in diameter towards the tip. The biting section 33 is formed by the tapered section 23, which cuts into the outer circumferential surface of the cap 12. According to this configuration, the tapered section 23 of the electrical connection section 21 bites into the biting section 33 of the cap 12, thereby more effectively suppressing the protrusion of the cap 12 from the electrical connection section 21. (3) The electrical connection section 21 includes the recesses or indentations 24 in the inner circumferential surface of the electrical connection section 21. The cap 12 includes the filling sections 34, which are formed by filling the recesses 24. According to this configuration, by filling the filling sections 34 of the cap 12 into the recesses 24 provided in the inner circumferential surface of the electrical connection section 21, the filling sections 34 can be locked to the recesses 24 of the electrical connection section 21 in the longitudinal direction of the cap 12. In this way, the escape of the cap 12 from the electrical connection section 21 can be more reliably suppressed. (4) The filling sections 34 are held in close or direct contact with the inner surfaces of the recesses 24. According to this configuration, the filling sections 34 of the cap 12 can be more suitablely locked onto the recesses 24 of the electrical connection section 21. (5) The manufacturing process of the connector 10 comprises the arrangement step and the forming step, which is to be carried out after the arrangement step. In the arrangement step, the cylindrical base material B2, which serves as the base material of the cap 12, is arranged on the plate-like base material B1, which serves as the base material of the connector body 11. In the forming step, a portion of the plate-like base material B1 (e.g., the electrical connection section 21 of the connector body 11c) is formed into a tubular shape to surround the cylindrical base material B2, thereby forming the electrical connection section 21 and the cap 12. In this forming step, the biting or cutting section 33 is formed on the outer circumferential surface of the cap 12. According to this manufacturing process, it is possible to produce the connector 10, which provides the separation orThe detachment of the cap 12 by the biting or cutting section 33 is suppressed. Furthermore, according to the above manufacturing process, since the cap 12 is simultaneously formed into the tubular shape during the forming step of the electrical connection section 21, labor or man-hours for assembly can be reduced, which can contribute to a reduction in manufacturing costs. (Modifications)

[0036] This embodiment can be modified or altered and implemented as follows. This embodiment and the following modifications or alterations can be combined and implemented without any technical contradiction.

[0037] Although the cylindrical base material B2 is arranged inside the electrical connection section 21, which is bent into the essentially U-shape in the manufacturing process of the connection 10 in the above embodiment, the cylindrical base material B2 can also be arranged on the electrical connection section 21 in a flat state.

[0038] The number of recesses 25 is not limited to that of the above embodiment and can be modified accordingly or appropriately according to the embodiment or the construction. It should be noted that the filling sections 34 of the cap 12, which are formed by filling the recesses 24, are as numerous as the recesses 24.

[0039] In the connection 10 of the above embodiment, the tapered section 23 of the electrical connection section 21 can be omitted. That is, the electrical connection section 21 can be formed in a tubular shape with a uniform cross-sectional shape in the axial direction. Furthermore, this configuration allows the tip portion of the electrical connection section 21 to form a cutting or biting section by cutting or biting into the outer circumferential surface of the cap 12.

[0040] The electrical connection section 21 can, for example, be formed in a polygonal tube shape, such as a rectangular or right-angled tube shape, in addition to the hollow cylindrical shape.

[0041] As this is in Fig. As shown in Figures 1 to 3, the terminal body 11, in particular the electrical connection section 21 which includes the tapered section 23, can be described as a metallic bent section or a metallic rolled section formed by bending a metal plate, which may be the plate-like base material B1. The metallic bent section of the terminal body 11 may have an inner side surface or inside surface of a bend and an outer side surface or outside surface of the bend. This inner side surface of the bend of the metallic bent section of the terminal body 11 can be described as a radially pressing or compressing surface for local deformation or deformation (e.g., plastic deformation) of the cap 12 by radial pressing or compression.Pressing of a non-pointed portion, which has a predetermined axial length in the cap 12. The biting section 33 can be formed on the non-pointed portion of the cap 12, the finger-preventing section 32 can be formed on the pointed portion of the cap 12, and a radial step can be formed between the biting section 33 and the finger-preventing section 32 by radially pressing the non-pointed portion of the cap 12 through this inner side surface of the bend in the connecting body 11. The biting section 33 and the finger-preventing section 32 can each be referred to as a non-pointed portion and a non-pressing pointed portion, respectively, which is pressed and deformed. The cap 12 can have an outer side surface orThe outer surface of the cap coincides with the inner side surface of the bend in the metallic bent section of the connecting body 11. As shown in . Fig. As shown in Figure 2, the cap 12 does not need to, or cannot, cover the outer side surface of the bend in the metallic bent section of the terminal body 11. The cap 12 of the illustrated embodiment can be described as a resin protective chip or component for the electrical connection section 21.

[0042] The embodiment and modifications disclosed here are illustrative in all aspects, and the present invention is not limited to these illustrations or representations. That is to say, the scope of the present invention is represented by the claims, and it is intended that all modifications are included within the scope of the claims and in the meaning and scope of equivalents. [List of reference symbols] 10 connection 11, 11a, 11b, 11c, 11d Connection body 12 caps 21 electrical connection section 22 Pipe or drum section 23 tapered section 24 Recess or recess 31 inner or inner part 32 section preventing contact with a finger or finger-contact prevention section 33 biting or cutting section 34 filling or filling section 41 Basic section B1 plate-like base material B2 cylindrical base material QUOTES INCLUDED IN THE DESCRIPTION

[0000] This list of documents cited by the applicant was automatically generated and is included solely for the reader's convenience. The list is not part of the German patent or utility model application. The DPMA accepts no liability for any errors or omissions. Cited patent literature

[0000] JP 2013-4391

[0003]

Claims

[1] Connection, encompassing: a connecting body which is made from a conductor; and a cap which is provided on the terminal body, wherein the cap is made of an insulator, wherein the connection body includes a tubular electrical connection section, wherein the cap has a cylindrical shape which has a longitudinal direction, wherein part of the cap is arranged longitudinally inside the electrical connection section, and wherein a biting section is formed on an outer circumferential surface of the cap, wherein a tip portion of the electrical connection section bites or cuts radially inwards into the biting section. [2] Connection according to claim 1, wherein: the tip part of the electrical connection section includes a tapered section which is reduced in diameter towards a tip, and the tapered section bites into the biting section. [3] Connection according to claim 1, wherein: the electrical connection section includes a recess in an inner circumferential surface of the electrical connection section, and The cap includes a filling section, which is formed by filling the depression. [4] Connection according to claim 3, wherein the filling section is held in direct contact with an inner surface of the recess. [5] Connection manufacturing method for manufacturing the connection according to any one of claims 1 to 4, comprising: an ordering step of arranging a cylindrical base material, which serves as a base material of the cap, on a plate-like base material, which serves as a base material of the connecting body; and a forming step of forming the electrical connection section and the cap by bending a portion of the plate-like base material into a tube-like shape to surround the cylindrical base material after the arranging step, wherein the biting section is formed on the outer circumferential surface of the cap in the forming step.

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