Terminal fitting

Abstract

The invention provides a terminal fitting which is used for relieving stress applied when the terminal fitting is deformed and reducing poor connection. A terminal fitting (10) is provided with: an attachment / detachment-side terminal section (12) that is connected to a counterpart-side terminal (T); a mounting-side terminal section (11) mounted on the circuit board (P); and a stress absorbing section (18) disposed between the attachment / detachment-side terminal section (12) and the attachment-side terminal section (11). The stress absorbing portion (18) is elastically deformed to relieve the stress generated in the attachment / detachment-side terminal portion (12) and the attachment-side terminal portion (11) in the terminal fitting (10).

Description

Technical Field

[0001] The present invention relates to a terminal component used in a connector. Background Art

[0002] Patent Document 1 discloses a terminal component used in a connector for a printed circuit board, the terminal component including a terminal portion connected to a mating terminal, a terminal portion mounted on a circuit body, and a connecting portion connecting the two terminal portions in a straight line. Prior art literature Patent Literature

[0003] Patent Document 1: Japanese Patent Application Publication No. 2020-21595 Summary of the invention Problems to be solved by the invention

[0004] When the terminal parts expand and contract due to changes in ambient temperature, stress is generated. The stress may cause the terminal parts to break or cause a poor connection.

[0005] The present invention has been made based on the above circumstances, and an object of the present invention is to relieve stress generated in terminal parts. Solutions to Solve Problems

[0006] The terminal component of the present invention comprises: a detachable terminal portion connected to a counterpart terminal; a mounting terminal portion mounted on a circuit board; and a stress absorbing portion arranged between the detachable terminal portion and the mounting terminal portion. Effects of the Invention

[0007] According to the present invention, stress generated in the terminal parts can be relieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 This is a perspective view of the connector unit of Example 1. Figure 2 is a cross-sectional view of the connector unit. Figure 3 This is an exploded perspective view of the connector unit. Figure 4 This is a three-dimensional view of the terminal parts. Figure 5 It is a side view of the terminal parts. Figure 6 It is a top cross-sectional view of the terminal parts. Figure 7 It is the front view of the terminal parts. Figure 8 yes Figure 6 XX line cross-sectional view. DETAILED DESCRIPTION

[0009] [Description of Embodiments of the Invention] First, embodiments of the present invention will be described by way of examples. (1) The terminal component of the present invention comprises: a detachable terminal portion connected to a terminal on the other side; a mounting terminal portion mounted on a circuit board; and a stress absorbing portion disposed between the detachable terminal portion and the mounting terminal portion. According to this configuration, the stress absorbing portion is elastically deformed, thereby relieving stress generated in the detachable terminal portion and the mounting terminal portion in the terminal component.

[0010] (2) Preferably, the stress absorbing portion and the detachable side terminal portion are connected to form an obtuse angle, and the stress absorbing portion and the mounting terminal portion are connected to form an obtuse angle. According to this configuration, compared with the case where the connection portion of the stress absorbing portion connected to the detachable side terminal portion and the mounting side terminal portion is a right angle or an acute angle, the material cost of the terminal parts can be reduced. In addition, at the front and rear end portions of the stress absorbing portion, stress is not easily concentrated on the bent portion, so it is not easy to be damaged.

[0011] (3) Preferably, the attaching / detaching side terminal portion includes a flat plate portion directly connected to the stress absorbing portion and a reinforcing portion reinforcing the flat plate portion. According to this configuration, the rigidity of the flat plate portion can be increased, thereby reducing stress generated in the flat plate portion.

[0012] (4) Preferably, the reinforcing portion includes a first reinforcing plate portion, the first reinforcing plate portion being folded back from one of the two side edges of the flat plate portion along the length direction and arranged in the plate thickness direction with the flat plate portion. According to this configuration, the first reinforcing plate portion is folded back from the side edge along the length direction of the flat plate portion and arranged in the plate thickness direction, thereby improving the rigidity of the flat plate portion.

[0013] (5) Preferably, the reinforcing portion includes a second reinforcing plate portion extending from the other of the two side edges of the flat plate portion along the length direction in the plate thickness direction. According to this configuration, since the second reinforcing plate portion extends perpendicularly from the flat plate portion, the rigidity of the flat plate portion can be increased.

[0014] (6) Preferably, there is also a long reinforcing plate portion, the long reinforcing plate portion includes the first reinforcing plate portion, and is arranged along the flat plate portion, the stress absorbing portion, and the mounting side terminal portion, and the side edge portion of the long reinforcing plate portion along the length direction is connected to the side edge portion of the flat plate portion along the length direction and the side edge portion of the mounting side terminal portion along the length direction, and is separated from the side edge portion of the stress absorbing portion along the length direction. According to this configuration, the rigidity of the terminal part as a whole can be improved by connecting the long reinforcing plate portion to the side edge portion of the flat plate portion and the mounting side terminal portion along the length direction. Since the stress absorbing portion is not directly connected to the long reinforcing plate portion, the stress relief function is not impaired.

[0015] (7) Preferably, a step portion is formed on the top reinforcing plate portion of the long reinforcing plate portion arranged along the mounting side terminal portion, and the step portion abuts against the opening edge of the through hole of the circuit substrate. According to this configuration, the insertion depth of the mounting side terminal portion into the circuit substrate is constant, and the stress applied to each terminal part is uniform, so it is not easy to generate stress locally on each terminal part.

[0016] (8) Preferably, the mounting-side terminal portion has a through-shaped barrel portion, a spring piece elastically contacting the other-side terminal is provided in the barrel portion, and when the mounting-side terminal portion and the mounting-side terminal portion are viewed from the through-direction of the barrel portion, the mounting-side terminal portion is arranged outside the barrel portion. According to this configuration, when inspecting the gap (gap) between the wall surface inside the barrel portion and the spring piece during the gap inspection, the gap inspection can be performed correctly because the mounting-side terminal portion does not exist on the path of the inspection light such as laser.

[0017] [Details of Embodiments of the Invention] [Example 1] Reference Figures 1 to 8 Embodiment 1 which embodies the present invention will be described. The present invention is not limited to these examples, but is defined by the claims, and includes all modifications within the meaning and scope equivalent to the claims. Figures 1 to 8 In the diagram, “F” represents “front”, “U” represents “upper”, and “R” represents “right side”.

[0018] [Configuration of Connector Unit 70] like Figures 1 to 3 As shown, the connector unit 70 of the first embodiment includes an outer housing 40 , an inner housing 25 , a plurality of terminal fittings 10 , a circuit board P, and a holding body 60 .

[0019] [Configuration of Circuit Board P] like Figure 1 and 3As shown in FIG. 1 , the circuit board P is composed of an FPC 55 and a support plate 30. Figures 1 to 3 As shown in FIG. 5 , FPC55 is the abbreviation of Flexible Printed Circuits, which is a thin sheet with flexibility. Figure 3 As shown, a plurality of connection holes 57 for allowing the mounting side terminal portion 11 of the terminal part 10 to pass through individually are formed in the FPC 55. The FPC 55 has a structure in which a thin film-shaped conductor layer constituting a predetermined wiring pattern is sandwiched between insulating films. According to this structure, the FPC 55 can be flexibly deformed such as bending while maintaining the electrical characteristics as is. A pair of first positioning holes 56 are formed in the FPC 55.

[0020] like Figures 1 to 3 As shown, the support plate 30 is attached to the FPC 55 to reinforce the FPC 55. A plurality of guide holes 31 matching the connection holes 57 are formed in the support plate 30. A pair of second positioning holes 32 matching the first positioning holes 56 and two third positioning holes 33 closed by the FPC 55 are formed in the support plate 30. When the support plate 30 and the FPC 55 are attached, in order to absorb the positional deviation of the guide holes 31 and the connection holes 57, the guide holes 31 are opened larger than the connection holes 57.

[0021] [Configuration of the Inner Case 25] The inner shell 25 is made of synthetic resin, such as Figures 1 to 3 As shown, it has a flat rectangular parallelepiped shape. In order to individually accommodate multiple terminal parts 10 in the inner housing 25, multiple elongated terminal storage chambers 29 are formed, which are separated by terminal storage walls 28. A terminal through hole 27 is formed at the front end of the terminal storage chamber 29, and the other side terminal T (refer to Figure 7 ) can be inserted into the terminal storage chamber 29 from the terminal through hole 27. The inner housing 25 has two inner engaging protrusions 26. The inner housing 25 is fixed to the support plate 30 in a state where the inner engaging protrusions 26 are engaged with the third positioning holes 33. By engaging the inner engaging protrusions 26 with the third positioning holes 33, the mounting side terminal portion 11 of the terminal part 10 accommodated in the inner housing 25 is inserted into the guide hole 31 and the connecting hole 57 without being misaligned.

[0022] [Configuration of the outer shell 40] like Figure 2 As shown, the outer housing 40 has a housing storage chamber 44 for storing the inner housing 25. A front wall portion 47 and a terminal insertion port 43 that penetrates the front wall portion 47 and matches the terminal through hole 27 are formed at the front end of the housing storage chamber 44. Figures 2-3As shown, the outer shell 40 has a middle bottom 50 extending vertically from the opening edge of the rear end of the housing storage chamber 44, and a lower wall portion 48 and an upper wall portion 49 extending rearward from the upper and lower edges of the middle bottom 50. A pair of cylindrical outer engaging protrusions 42 are formed at the left and right ends of the middle bottom 50. The outer shell 40 is assembled to the circuit substrate P (support plate 30 and FPC 55) in a state where the outer engaging protrusions 42 are engaged with the second positioning holes 32 and the first positioning holes 56.

[0023] [Configuration of the Holding Body 60] like Figures 1 to 3 As shown, the holding body 60 has a base plate portion 61, the central portion of the base plate portion 61 is substantially in the shape of a rectangular parallelepiped plate, and the left and right ends are bent inward. A pair of extensions 64 protrude from the left and right ends of the base plate portion 61. The holding body 60 has an outer engaging claw 62 extending inward from the edge of the extension 64. The holding body 60 is assembled to the outer shell 40 by locking the outer engaging claw 62 with the inner engaging claw 41 of the outer shell 40.

[0024] When the outer shell 40 and the retaining body 60 are assembled, Figure 2 As shown, a protective space 45 surrounded by a midsole 50, a lower wall portion 48, an upper wall portion 49 and a substrate portion 61 is formed. The protective space 45 contains a support plate 30, a portion of the FPC 55, and the mounting side terminal portion 11 of the terminal part 10 that passes through the connection hole 57. On the inner side of the retaining body 60, a plurality of flat plate-shaped suppression plates 63 are arranged in parallel in the left-right direction, and the suppression plates 63 protrude forward from the substrate portion 61. The lower ends of the plurality of suppression plates 63 are connected to each other via a connecting portion 65 in the left-right direction. A slit-shaped gap 51 is formed between the connecting portion 65 and the lower wall portion 48 to connect the inside of the protective space 45 with the rear external space of the retaining body 60.

[0025] [Configuration of Terminal Part 10] like Figures 4 to 8 As shown, the terminal part 10 is a single component integrally formed with the mounting side terminal part 12, the stress absorbing part 18 and the installation side terminal part 11, and is slender in the front-to-back direction as a whole. The mounting side terminal part 12 is arranged at the front end of the terminal part 10, and has a cylindrical part 13 in a square quadrilateral cylindrical shape and a flat plate part 14. The mounting side terminal part 12 is housed in the terminal storage chamber 29 of the inner housing 25 in a manner that can be connected to the terminal on the other side.

[0026] The barrel 13 penetrates in the front-to-back direction. A spring piece 24 is arranged inside the barrel 13. The spring piece 24 is composed of a plate portion extending in the front-to-back direction and bent. When the terminal part 10 is viewed from the side, the spring piece 24 is bent into a mountain shape. The bent portion of the right wall of the spring piece 24 closest to the barrel 13 functions as a contact portion C that contacts the terminal T on the other side. Figure 7 As shown, when the barrel 13 is viewed from the front, a gap α smaller than the thickness of the other terminal T is ensured between the contact portion C and the right wall of the barrel. The other terminal T is inserted into the barrel 13 from the front of the terminal part 10, and the spring piece 24 is elastically deformed while squeezing into the gap α. As a result, the terminal portion 12 of the terminal part 10 on the installation and removal side and the other terminal T are electrically (conductively) connected. The other terminal T can be pulled out from the barrel 13.

[0027] The flat plate portion 14 is in the shape of an elongated flat plate with the plate thickness direction oriented in the front-to-back direction. The flat plate portion 14 extends from the rear end of the left wall portion of the barrel portion 13 to the front in a coplanar and straight line shape. The mounting and dismounting side terminal portion 12 has a reinforcing portion 15 for reinforcing the flat plate portion 14. The reinforcing portion 15 has a first reinforcing plate portion (reinforcing plate portion A and reinforcing plate portion B) and a second reinforcing plate portion 20. The reinforcing plate portion A and the reinforcing plate portion B are connected to the upper edge of the upper and lower side edges of the flat plate portion 14 along the length direction. The reinforcing plate portion A has a reinforcing plate D extending vertically to the right from the upper edge of the flat plate portion 14, and a reinforcing plate E extending vertically downward from the reinforcing plate D. The reinforcing plate E is arranged in a manner spaced apart in the left-right direction relative to the flat plate portion 14.

[0028] like Figure 8 As shown, in the front view, the flat plate portion 14, the reinforcing plate D and the reinforcing plate E are in a generally U-shape that is turned upside down. The flat plate portion 14 and the reinforcing plate E are sufficiently spaced apart in the plate thickness direction (left-right direction). Since the reinforcing plate E is spaced apart from the flat plate portion 14, when an external force acts on the reinforcing plate portion A from the upper right, for example, the reinforcing plate D and the reinforcing plate E are deformed due to the above-mentioned space, and are elastically deformed in a manner of shifting to the lower left obliquely. Through this elastic deformation, the stress generated in the flat plate portion 14 can be relieved.

[0029] The reinforcing plate portion B has a reinforcing plate F, which is folded back from the upper edge of the flat plate portion 14 in a manner along the flat plate portion 14. The flat plate portion 14 and the reinforcing plate F are arranged in a state of close contact with each other or in a close positional relationship. Since there is almost no gap in the plate thickness direction between the flat plate portion 14 and the reinforcing plate F, when the reinforcing plate portion B is subjected to an external force, the reinforcing plate F hardly undergoes elastic deformation. However, since the two overlapping flat plate portions 14 and the reinforcing plate F constitute a stacked structure with a large thickness dimension as a whole, it has high rigidity.

[0030] The front and rear edges of the connecting plate 21 are connected to the rear edge of the reinforcing plate E and the front edge of the reinforcing plate F. As described above, since the gap between the flat plate 14 and the reinforcing plate E in the plate thickness direction is different from the gap between the flat plate 14 and the reinforcing plate F in the plate thickness direction, Figure 6As shown, when the terminal part 10 is viewed from above, the connecting plate 21 is inclined relative to the left and right direction. The connecting plate 21 is not folded back from the upper edge of the flat plate portion 14 in the plate thickness direction. That is, the upper edge of the flat plate portion 14 is connected to the upper edge of the reinforcing plate portion A and the reinforcing plate portion B, but is separated from the upper edge of the connecting plate 21.

[0031] The attachment / detachment side terminal portion 12 has a second reinforcing plate portion 20 for reinforcing the flat plate portion 14. The second reinforcing plate portion 20 is a thin and long flat plate-shaped portion extending in a coplanar manner from the rear end of the lower wall portion of the cylinder portion 13 to the rear. The left edge of the second reinforcing plate portion 20 is vertically connected to the lower edge of the upper and lower side edges of the flat plate portion 14 along the longitudinal direction. The second reinforcing plate portion 20 is separated from the lower side surface of the reinforcing plate E, the reinforcing plate F and the connecting plate 21.

[0032] Since the second reinforcing plate portion 20 extends vertically from the lower edge portion (the side edge portion along the length direction) of the flat plate portion 14, the rigidity of the flat plate portion 14 is improved by the second reinforcing plate portion 20. By improving the rigidity of the flat plate portion 14, it is possible to prevent the flat plate portion 14 from being bent and deformed when the other side terminal T and the barrel portion 13 are connected. Since the second reinforcing plate portion 20 is vertically opposed to the reinforcing plates E and F, even if the reinforcing plate portion A is deformed downward due to force from above, the second reinforcing plate portion 20 serves as a support to suppress excessive deformation of the reinforcing plate portion A. In this way, the terminal portion 12 on the mounting and disassembly side has high rigidity through the first reinforcing plate portion (reinforcing plate portion A and reinforcing plate portion B) and the second reinforcing plate portion 20.

[0033] The mounting side terminal portion 11 is parallel to the flat plate portion 14 and is in the shape of a plate that is elongated in the front-to-back direction. The rear end portion of the mounting side terminal portion 11 is in a shape that becomes increasingly thinner at the tip so that it can be inserted into the guide hole 31 of the support plate 30 and the connection hole 57 of the FPC55. The mounting side terminal portion 11 has a connection function to connect to the wiring pattern of the FPC55. The mounting side terminal portion 11 is inserted into the guide hole 31 of the support plate 30 and the connection hole 57 of the FPC55, and protrudes to the rear of the FPC55. The through portion 53 in the mounting side terminal portion 11 that protrudes to the rear of the FPC55 is fixed to the FPC55 by soldering or the like. Each terminal part 10 is configured to protrude forward from the FPC55 and is connected to the wiring pattern of the FPC55.

[0034] The terminal part 10 has a top end reinforcing plate portion 22. The top end reinforcing plate portion 22 is a portion folded back from the upper end edge of the upper and lower side edges of the mounting side terminal portion 11 along the length direction in a manner along the right side surface of the mounting side terminal portion 11. The mounting side terminal portion 11 and the top end reinforcing plate portion 22 are in close contact with each other, with almost no gap in the plate thickness direction. A step portion 16 is formed between the mounting side terminal portion 11 and the top end reinforcing plate portion 22, and the step portion 16 abuts against the opening edge 34 of the guide hole 31 of the support plate 30.

[0035] The stress absorbing portion 18 is disposed between the mounting side terminal portion 11 and the mounting and removal side terminal portion 12. Figure 6 As shown, when viewed from above, the front end of the stress absorbing portion 18 is connected to the rear end of the terminal portion 12 on the mounting side so as to form an obtuse angle β. When viewed from above, the rear end of the stress absorbing portion 18 is connected to the front end of the terminal portion 11 on the mounting side so as to form an obtuse angle γ. The obtuse angle β and the obtuse angle γ are the same angle. No sharp-angled bend is formed at the front and rear ends of the stress absorbing portion 18, so even if external forces in the left-right direction and the front-back direction are applied to the terminal part 10, it is difficult for stress to be concentrated on the front and rear ends of the stress absorbing portion 18. The terminal part 10 has a connecting reinforcement portion 23, and the connecting reinforcement portion 23 is arranged in a manner arranged in the plate thickness direction relative to the stress absorbing portion 18. The front end of the connecting reinforcement portion 23 is connected to the rear end of the reinforcing plate F so as to form an obtuse angle β. The rear end of the connecting reinforcement portion 23 is connected to the front end of the top side reinforcing plate portion 22 so as to form an obtuse angle γ.

[0036] The terminal part 10 has a long reinforcing plate portion 19, which is composed of a reinforcing plate F, a connecting plate 21, a reinforcing plate E, a connecting reinforcing portion 23, and a top side reinforcing plate portion 22. The long reinforcing plate portion 19 is a reinforcing portion that is slender in the front-to-back direction and is arranged along the flat plate portion 14, the stress absorbing portion 18, and the mounting side terminal portion 11. The upper edge of the long reinforcing plate portion 19 is connected to a portion of the upper edge of the flat plate portion 14 and the entire upper edge of the mounting side terminal portion 11, but is not connected to the entire area of ​​the upper edge (the side edge along the length direction) of the stress absorbing portion 18. In detail, the reinforcing plate F constituting the reinforcing portion 15 is connected to a portion of the upper edge of the flat plate portion 14 at its folded upper edge. The top side reinforcing plate portion 22 is connected to the upper edge of the mounting side terminal portion 11 at its folded upper edge.

[0037] The structure in which the long reinforcing plate portion 19 is connected to the flat plate portion 14 and the mounting side terminal portion 11 in a folded shape improves the rigidity of the flat plate portion 14 and the mounting side terminal portion 11, and is not easily deformed by external forces. The stress absorbing portion 18 and the connecting reinforcing portion 23 arranged in a manner overlapping the right side of the stress absorbing portion 18 are not directly connected, and there is no folded portion. Therefore, the rigidity of the stress absorbing portion 18 is lower than that of the flat plate portion 14 and the mounting side terminal portion 11. When an external force that causes the mounting side terminal portion 11 and the mounting side terminal portion 12 to be relatively displaced in the front-to-back direction acts on the terminal part 10, the stress absorbing portion 18 undergoes elastic deformation, thereby preventing deformation of the mounting side terminal portion 11 and deformation of the mounting side terminal portion 12. That is, the stress absorbing portion 18 absorbs the stress of the mounting side terminal portion 12 and the mounting side terminal portion 11. In this way, the terminal part 10 can achieve both high rigidity and stress relief in the mounting side terminal portion 12 and the mounting side terminal portion 11.

[0038] Next, the function of Example 1 is described. When assembling the connector unit 70, a plurality of terminal parts 10 are inserted into the terminal storage chamber 29 of the inner housing 25. Even if a load is applied to the terminal parts 10 during insertion, the terminal parts 10 have sufficient rigidity to withstand the load. In a process different from the insertion of the terminal parts 10, the support plate 30 and the FPC 55 are pasted to form the circuit substrate P.

[0039] Next, the inner engaging protrusion 26 of the inner housing 25 is engaged with the third positioning hole 33 of the circuit substrate P. As a result, the top end of the mounting side terminal portion 11 is inserted into the guide hole 31 without contacting the support plate 30. The step portion 16 formed on the top side reinforcing plate portion 22 abuts against the opening edge 34 of the guide hole. As a result, the insertion depth of the mounting and disassembling side terminal portion 12 relative to the through hole (guide hole 31 and connection hole 57) of the circuit substrate P is constant, and the posture of the terminal part 10 relative to the circuit substrate P is stable. As a result, the connection reliability between the terminal part 10 and the terminal T on the other side is stable in all the terminal parts 10. In addition, each terminal part 10 is not easy to tilt, and the posture is stable in all the terminal parts 10, so it is not easy to cause damage or stress concentration of the terminal part 10 due to the tilted posture.

[0040] Next, on the surface of the FPC55 on the opposite side to the support plate 30 and the inner housing 25, the mounting side terminal portion 11 and the FPC55 are soldered, and the terminal component 10 is mounted on the FPC55. The terminal component 10 fixed by soldering stretches in the front-to-back direction due to thermal expansion. When stretched, the front end of the mounting side terminal portion 12 may come into contact with the front wall of the terminal storage chamber 29 and bend. At this time, elastic deformation occurs through the stress absorption portion 18 and the connecting reinforcement portion 23, so that the stress of the mounting side terminal portion 11 and the mounting side terminal portion 12 is relieved. In addition, the rigidity of the mounting side terminal portion 11 and the mounting side terminal portion 12 is improved by the top side reinforcement plate portion 22 and the reinforcement portion 15, so it is not easy to cause excessive deformation or breakage.

[0041] Next, the outer engaging protrusion 42 of the outer shell 40 is passed through the first positioning hole 56 of the FPC 55 and the second positioning hole 32 of the support plate 30, and the outer shell 40 is fixed to the circuit board P by heat welding. Due to the heat shrinkage of the portion fixed by heat welding, a load is applied to the installed terminal part 10, but the terminal part 10 is elastically deformed by the stress absorbing part 18 and the connecting reinforcement part 23, which can relieve the stress of the installation side terminal part 11 and the installation and removal side terminal part 12. In addition, by reinforcing the plate part A and the reinforcing plate part B, it is not easy to cause bending deformation of the flat plate part 14, so the stress of the flat plate part 14 can be relieved.

[0042] Next, the holding body 60 is embedded in the outer shell 40. Thus, the circuit board P and the through-portion 53 of the terminal part 10 are protected. The portion of the FPC 55 to which the support plate 30 is not attached is bent in the protection space 45 and led out to the rear of the holding body 60 through the gap 51 between the connecting portion 65 and the lower wall portion 48.

[0043] The terminal component 10 of the first embodiment includes: a detachable terminal portion 12 connected to a counterpart terminal T; a mounting terminal portion 11 mounted on a circuit board P; and a stress absorbing portion 18 disposed between the detachable terminal portion 12 and the mounting terminal portion 11. According to the terminal component 10, the stress generated in the detachable terminal portion 12 and the mounting terminal portion 11 in the terminal component 10 can be relieved by elastic deformation of the stress absorbing portion 18.

[0044] The stress absorbing portion 18 is connected to the detachable side terminal portion 12 in such a manner as to form an obtuse angle β, and the stress absorbing portion 18 is connected to the mounting side terminal portion 11 in such a manner as to form an obtuse angle γ. According to this configuration, the material cost of the terminal component 10 can be reduced compared to the case where the connection portion of the stress absorbing portion 18 with the detachable side terminal portion 12 and the mounting side terminal portion 11 is a right angle or an acute angle. In addition, at the front and rear end portions of the stress absorbing portion 18, stress is not easily concentrated on the bent portion, so it is not easy to be damaged.

[0045] The detachable terminal portion 12 includes a flat plate portion 14 directly connected to the stress absorbing portion 18 and a reinforcing portion 15 for reinforcing the flat plate portion 14. Since the rigidity of the flat plate portion 14 is increased by the reinforcing portion 15, stress generated in the flat plate portion 14 can be reduced.

[0046] The reinforcement portion includes a first reinforcement plate portion (reinforcement plate portion A, reinforcement plate portion B), which is folded back from one side edge portion (upper end edge portion) of the two side edges along the length direction of the flat plate portion 14 and arranged in the plate thickness direction with the flat plate portion 14. The reinforcement plate portion A and the reinforcement plate portion B are folded back from the side edge portion along the length direction of the flat plate portion 14 and arranged in the plate thickness direction, thereby improving the rigidity of the flat plate portion 14.

[0047] The reinforcing portion 15 includes a second reinforcing plate portion 20 extending in the plate thickness direction from the other side edge (lower end edge) of the two side edges along the longitudinal direction of the flat plate portion 14. Since the second reinforcing plate portion 20 extends perpendicularly from the flat plate portion 14, the rigidity of the flat plate portion 14 is improved.

[0048] The terminal part 10 has a long reinforcing plate portion 19, and the long reinforcing plate portion 19 includes a first reinforcing plate portion (reinforcing plate portion A, reinforcing plate portion B), which is arranged along the flat plate portion 14, the stress absorbing portion 18, and the mounting side terminal portion 11. The side edge portion (upper edge portion) along the length direction of the long reinforcing plate portion 19 is connected to the side edge portion (upper edge portion) along the length direction of the flat plate portion 14 and the side edge portion (upper edge portion) along the length direction of the mounting side terminal portion 11. The upper edge portion of the long reinforcing plate portion 19 is separated from the side edge portion (upper edge portion) along the length direction of the stress absorbing portion 18. According to this structure, the rigidity of the terminal part 10 as a whole can be improved by connecting the long reinforcing plate portion 19 to the side edge portions of the flat plate portion 14 and the mounting side terminal portion 11 along the length direction. Since the stress absorbing portion 18 is not directly connected to the long reinforcing plate portion 19, the stress relief function is not impaired.

[0049] The top reinforcing plate portion 22 of the long reinforcing plate portion 19 arranged along the mounting side terminal portion 11 is formed with a step portion 16, and the step portion 16 abuts against the opening edge of the through hole (guide hole 31) of the circuit substrate P. According to this structure, the insertion depth of the mounting side terminal portion 11 into the circuit substrate P is constant, and the stress applied to each terminal part 10 is uniform, so it is not easy to generate stress locally in each terminal part 10.

[0050] The mounting and dismounting side terminal portion 12 has a through-shaped barrel portion 13. A spring piece 24 that elastically contacts the other side terminal T is provided in the barrel portion 13. When the mounting and dismounting side terminal portion 12 and the installation side terminal portion 11 are viewed from the through-direction of the barrel portion 13, the installation side terminal portion 11 is arranged on the outside of the barrel portion 13. A gap inspection is performed on the terminal part 10 before it is assembled in the inner housing 25 by laser. In the gap inspection, check whether the length of the gap (gap) α between the inner surface of the right wall portion of the barrel portion 13 and the spring piece 24 is within an appropriate range. In this inspection, detection light such as laser is irradiated to the inside of the barrel portion 13 from the front or rear of the barrel portion 13. In the present embodiment 1, as Figure 7 As shown in FIG. 1 , when the detachable side terminal portion 12 and the mounting side terminal portion 11 are viewed from the through direction of the barrel portion 13, the mounting side terminal portion 11 is arranged outside (to the left) of the barrel portion 13. That is, the mounting side terminal portion 11 does not exist in the optical path of the detection light, especially in the range of the gap α. Therefore, the gap inspection can be performed accurately.

[0051] [Other embodiments] The present invention is not limited to the embodiments described in the above description and drawings, but is shown by the claims. The present invention includes all modifications within the meaning and protection scope equivalent to the claims, and also includes the following embodiments. (1) In the first embodiment, the elongated reinforcing plate portion 19 includes the distal reinforcing plate portion 22 , the connecting reinforcing portion 23 , the reinforcing plate F, the connecting plate 21 , and the reinforcing plate E. However, the elongated reinforcing plate portion 19 may not include the connecting plate 21 . (2) In the present first embodiment, when the installation-side terminal portion 12 and the mounting-side terminal portion 11 are viewed from the penetration direction of the barrel 13, the mounting-side terminal portion 11 is arranged on the outer side (left side) of the barrel 13. However, in the case where a gap check is not performed, the mounting-side terminal portion 11 may also be arranged on the inner side of the barrel 13. (3) In the first embodiment, the second reinforcing plate portion 20 extending from the lower end edge of the flat plate portion 14 in the plate thickness direction is provided. However, the second reinforcing plate portion 20 may not be provided. (4) In the first embodiment, the step portion 16 is formed on the front end reinforcing plate portion 22 and the step portion 16 abuts against the opening edge portion 34 of the guide hole 31 of the support plate 30 . However, the step portion 16 may not be formed. (5) In the first embodiment, the reinforcing portion 15 includes the reinforcing plate portion A separated from the flat plate portion 14 . However, the reinforcing portion 15 may be arranged along the flat plate portion 14 without leaving any gap therebetween throughout the entire portion. (6) In the first embodiment, the top reinforcing plate portion 22 is arranged in close contact with the detachable terminal portion 12 in the plate thickness direction. However, the top reinforcing plate portion 22 may be arranged with a constant gap therebetween. (7) In the first embodiment, the front end of the second reinforcing plate portion 20 is connected to the lower wall of the tube portion 13, but it does not have to be connected to the wall of the tube portion 13 as long as it extends from one of the two side edges of the flat plate portion 14 in the plate thickness direction. (8) In the first embodiment, the flat plate portion 14 extends from the left side surface of the cylindrical portion 13 . However, the flat plate portion 14 may extend from other surfaces of the cylindrical portion 13 . (9) In the present embodiment 1, the first reinforcing plate portion (reinforcing plate portion A, reinforcing plate portion B) extends from the upper edge portion of the flat plate portion 14, and the second reinforcing plate portion 20 extends from the lower edge portion, but the second reinforcing plate portion 20 may be extended from the upper edge portion of the flat plate portion 14, and the first reinforcing plate portion (reinforcing plate portion A, reinforcing plate portion B) may be extended from the lower edge portion. Description of Reference Numerals

[0052] 10: Terminal parts 11: Terminal section on the mounting side 12: Terminal section on the installation and removal side 13: Barrel 14: Flat plate 15: Strengthening Department 16: Step 18: Stress absorption part 19: Long strip reinforcement plate 20: Second reinforcement plate 21: Connecting plate 22: Top side reinforcement plate 23: Connection reinforcement 24: Spring sheet 25: Inner shell 26: Internal engagement protrusion 27: Terminal through hole 28: Terminal storage wall 29: Terminal storage room 30: Support plate 31: Guide hole 32: Second positioning hole 33: The third positioning hole 34: Opening edge of the guide hole 40: Outer shell 41: Internal snap-on claw 42: External snap-fit ​​protrusion 43: Terminal insertion port 44: Shell storage room 45: Protecting Space 47: Anterior wall 48: Lower wall 49: Upper wall 50: Midsole 51: Gap 53: Through 55: FPC 56: 1st positioning hole 57: Connection hole 60: Keep body 61: Substrate part 62: External snap-on claw 63: Inhibition Plate 64: Extension 65: Connection 70: Connector unit A: Reinforcement plate (1st reinforcement plate) B: Reinforcement plate (first reinforcement plate) C: Contact part D: Reinforcement plate E: Reinforcement plate F: Reinforcement plate P: Circuit board T: Terminal on the other side α: Gap β: Obtuse angle γ: obtuse angle

Claims

1. A terminal component, comprising: The terminal part on the mounting and disassembling side is connected with the terminal on the other side; A mounting side terminal portion is mounted on the circuit substrate; and The stress absorbing portion is disposed between the attaching / detaching-side terminal portion and the mounting-side terminal portion.

2. The terminal part according to claim 1, wherein The stress absorbing portion and the attachment / detachment side terminal portion are connected in such a manner as to form an obtuse angle. The stress absorbing portion and the mounting terminal portion are connected to form an obtuse angle.

3. The terminal part according to claim 1 or claim 2, wherein: The attachment / detachment-side terminal portion includes a flat plate portion directly connected to the stress absorbing portion and a reinforcing portion for reinforcing the flat plate portion.

4. The terminal part according to claim 3, wherein The reinforcing portion includes a first reinforcing plate portion that is folded back from one of two side edge portions of the flat plate portion along the longitudinal direction and is aligned with the flat plate portion in a plate thickness direction.

5. The terminal part according to claim 4, wherein The reinforcement portion includes a second reinforcement plate portion extending in a plate thickness direction from the other of the two side edge portions of the flat plate portion along the longitudinal direction.

6. The terminal component according to claim 4, further comprising: A long reinforcing plate portion, the long reinforcing plate portion including the first reinforcing plate portion, is arranged along the flat plate portion, the stress absorbing portion and the mounting side terminal portion, wherein: The side edge of the long reinforcing plate portion along the length direction is connected to the side edge of the flat plate portion and the side edge of the mounting-side terminal portion along the length direction, and is separated from the side edge of the stress absorbing portion along the length direction.

7. The terminal part according to claim 6, wherein A step portion is formed on a tip reinforcing plate portion of the elongated reinforcing plate portion disposed along the mounting-side terminal portion, and the step portion abuts against an opening edge of a through hole of the circuit board.

8. The terminal part according to claim 1, wherein The mounting and dismounting side terminal portion has a through-shaped cylindrical portion, A spring piece is provided in the barrel portion and elastically contacts the other terminal. When the attachment / detachment-side terminal portion and the mounting-side terminal portion are viewed from a penetration direction of the cylindrical portion, the mounting-side terminal portion is arranged outside the cylindrical portion.

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