Contacts and connectors

Abstract

The present invention provides a contact piece and a connector having the same structure, which can reliably press the press-in portion into the housing and suppress the influence of the insertion of the other contact piece from being transmitted to the crimping portion. The contact piece (10) has a base (20), a crimping portion (30), an overhang portion (40), and a contact portion (50). The overhang portion (40) is folded back downward at the upper end of the crimping portion (30) and extends downward. Moreover, the overhang portion (40) has a press-in portion (41) that is pressed into the housing. The press-in portion (41) is provided on the left and right sides of the overhang portion (40) at a position lower than the crimping groove (31). In the portion where the press-in portion (41) is provided, no crimping gap (31) is formed, and the contact piece can be reliably pressed in by withstanding the strong reaction force during the press-in.

Description

Technical Field

[0001] The present invention relates to a contact having a crimping portion for crimping an electric wire and a connector including the contact. Background Art

[0002] Connectors having contacts having a crimping portion have long been known. For example, Patent Document 1 discloses a contact having a crimping portion above a base and a contact portion below the base that contacts a mating contact. In the crimping portion, a crimping groove is formed in the center of the left and right sides. The crimping groove receives the covered wire and cuts off its covering, making contact with its core wire. The contact portion receives the inserted male mating contact between the contact portion and the base, making contact with the mating contact. The contact has a press-in portion on both sides of the crimping portion that is pressed into the housing. When the contact is installed in the housing, the press-in portion is pressed into the housing, and the contact is fixed to the housing.

[0003] Prior art literature

[0004] Patent Literature

[0005] Patent Document 1: Japanese Patent Application Laid-Open No. 6-5316. Summary of the Invention

[0006] Problems to be solved by the invention

[0007] The recent demand for miniaturization and lightness also applies to connectors equipped with the above-mentioned type of contacts. Therefore, the contacts are also being miniaturized and thinned, making them more flexible.

[0008] In the case of the contact of the structure disclosed in Patent Document 1 above, when the contact is pressed into the housing, the press-fit portion receives a reaction force from the housing, and a force in the direction of reducing the width of the press-fit groove acts on the press-fit portion. Therefore, if the contact becomes easily flexed due to miniaturization and thinning, there is a possibility that the press-fit portion will not be firmly pressed into the housing, and the original effect cannot be achieved.

[0009] Furthermore, when the mating contact is inserted between the contact portion and the base, the contact portion elastically deforms. In the case of the contact of the structure disclosed in Patent Document 1 above, the press-in portion is located to the left and right of the crimping portion. Therefore, the elastic deformation of the contact portion caused by the insertion of the mating contact may affect the crimping portion. If the contact becomes easily flexed due to miniaturization and thinning, the crimping portion may be significantly affected, causing fluctuations in the contact pressure with the core wire at the crimping portion.

[0010] An object of the present invention is to provide a contact and a connector including the contact having a structure in which, when the contact is installed in a housing, the press-fit portion is reliably pressed into the housing and the influence of the insertion of a mating contact is suppressed from being transmitted to the crimping portion.

[0011] Solutions to Problems

[0012] The contact of the present invention for achieving the above-mentioned purpose is characterized in that it comprises: a base; a crimping portion, which extends upward from the base and forms a crimping groove for crimping the wire; an overhanging portion, which is folded downward at the upper end of the crimping portion and extends downward, and has a pressing portion pressed into the shell below the crimping groove; and a contact portion, which extends from the lower end of the overhanging portion, receives an inserted male counterpart contact between the overhanging portion and the base, and contacts the counterpart contact.

[0013] In the case of the contact of the present invention, the press-in portion is formed below the crimping groove, that is, at a position where the crimping groove does not exist. Therefore, even if a reaction force acts on the press-in portion, the reaction force can be withstood and the press-in portion can be reliably pressed into the housing.

[0014] Furthermore, in the case of the contact of the present invention, the press-fit portion is located between the crimping portion and the contact portion. Therefore, the influence of deformation of the contact portion caused by the insertion of the mating contact is blocked at the position of the press-fit portion, which can prevent the influence from affecting the crimping portion.

[0015] Here, in the contact piece of the present invention, it is preferred that the crimping portion has a first crimping portion and a second crimping portion respectively arranged at the front end portion and the rear end portion of the base in the insertion direction of the other contact piece, and the overhanging portion is folded downward at the upper end of the first crimping portion and extends downward.

[0016] If the first crimping portion and the second crimping portion are provided, the crimping portion and the core wire are electrically connected with higher reliability.

[0017] Furthermore, a connector of the present invention that achieves the above-mentioned object is characterized in that it includes a housing and the contact according to any one aspect of the present invention, wherein the press-fit portion is press-fitted into the housing.

[0018] According to the connector of the present invention, a highly reliable connector is realized.

[0019] Effects of the Invention

[0020] According to the present invention described above, a contact and a connector are realized in which the contact is stably supported by the housing and operates stably even when a mating contact is inserted. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a perspective view of a contact according to one embodiment of the present invention.

[0022] Figure 2 This is a perspective view of a connector as one embodiment of the present invention.

[0023] Figure 3 is Figure 2 A top view of the connector in a perspective view is shown in FIG.

[0024] Figure 4 It is along Figure 3 The enlarged cross-sectional view (A) along the arrow AA shown, and Figure 3 An enlarged cross-sectional view of arrow BB is shown (B).

[0025] Figure 5 The connector of this embodiment is shown along Figure 3 A perspective view of a cross section along arrow BB is shown. DETAILED DESCRIPTION

[0026] Hereinafter, embodiments of the present invention will be described.

[0027] Figure 1 This is a perspective view of a contact according to one embodiment of the present invention.

[0028] The contact 10 is formed by punching and bending a metal plate and includes a base portion 20 , a crimping portion 30 , an overhang portion 40 , and a contact portion 50 .

[0029] The base 20 has a flat plate shape, extending horizontally.

[0030] The crimping portion 30 extends upward from the base portion 20. The crimping portion 30 is provided with a crimping covered electric wire 90 (see Figure 5 ) crimping slit 31. When the covered electric wire 90 is mounted on the crimping portion 30, the covering of the covered electric wire 90 is cut off at the edges on both sides of the crimping slit 31, and the core wire inside the crimping slit 31 is electrically connected to the contact 10. The crimping portion includes a first crimping portion 30A and a second crimping portion 30B, which are provided on the mating contact 81 (see FIG. 1 ) as indicated by the arrow S. Figure 5 ) in the insertion direction, at each of the front end and the rear end of the base 20. By crimping the covered electric wire 90 at both the first crimping portion 30A and the second crimping portion 30B, the reliability of the conduction between the core wire and the contact 10 is improved.

[0031] In addition, the overhang portion 40 folds back downward at the upper end of the crimping portion 30 (specifically, the upper end of the first crimping portion 30A provided at the front end in the insertion direction indicated by arrow S) and extends downward. Furthermore, the overhang portion 40 has a press-fit portion 41 that is pressed into the housing. The press-fit portion 41 is provided on the left and right sides of the overhang portion 40, further below the crimping groove 31. In the area where the press-fit portion 41 is provided, a crimping gap 31 is not formed, and there is no space such as a crimping gap 31 between the left and right press-fit portions 41. Therefore, even if a force is applied in a direction that brings the left and right press-fit portions 41 closer together (in the direction indicated by arrow F), the distance between the left and right press-fit portions 41 is maintained. In contrast, if a force in the direction indicated by arrow F' is applied to the crimping portion 30 having the crimping gap 31 formed therein, the crimping gap 31 bends inward, and the left and right edges 32 of the crimping portion 30 are brought closer together. In the case of the contact disclosed in Patent Document 1 above, a press-fit portion is formed at the position indicated by arrow F', parallel to the crimping slit 31. Consequently, there is a risk that the crimping slit 31 may deflect inward, causing the press-fit portion to move away from the housing wall, resulting in insufficient press-fit and, consequently, insufficient retention of the contact. In contrast, in this embodiment, there is no space between the left and right press-fit portions 41, such as the crimping slit 31. Even if the press-fit portion 41 experiences a strong reaction force from the housing wall 61, it can withstand this reaction force and maintain sufficient press-fit.

[0032] The contact portion 50 extends in a cantilever beam shape from the lower end of the overhang portion 40. The contact portion 50 receives the inserted male mating contact 81 between the base portion 20 and contacts the mating contact 81 to establish electrical conduction.

[0033] Figure 2 This is a perspective view of a connector as one embodiment of the present invention.

[0034] in addition, Figure 3 is Figure 2 A top view of the connector in a perspective view is shown in FIG.

[0035] and, Figure 4 It is along Figure 3 The enlarged cross-sectional view (A) along the arrow AA shown, and Figure 3 An enlarged cross-sectional view of arrow BB is shown (B).

[0036] Should Figure 2 The connector 100 shown in the figure comprises a housing 60 and a plurality of ( Figure 2 In the example shown, there are 13) contact members 10. Figure 2 The arrow S shown in the figure has the same direction as Figure 1 That is, in the housing 60, the arrow S shown is consistent. Figure 1 The arrow S and Figure 2 A plurality of contacts 10 are assembled in a manner consistent with the direction of arrow S.

[0037] like Figure 4 As shown in FIG. 1A , when each contact 10 is mounted in the housing 60 , the press-fit portion 41 is pressed into the wall 61 of the housing 60 . As a result, each contact 10 is fixed at a predetermined position in the housing 60 .

[0038] Furthermore, in the housing 60, mating contacts 81 are formed at positions corresponding to the respective contacts 10 (see Figure 5 ) is inserted into the insertion opening 62. Figure 4 As shown in (B), the insertion opening 62 is formed at a position connected to the receiving port 51 of the mating contact 81 between the base 20 of the contact 10 and the contact portion 50. In addition, the housing 60 is formed with a receiving groove 63 corresponding to each contact 10. As for the covered wire 90, its end is crimped by the crimping portion 30 of the contact 10, and the portion connected to the crimped end is accommodated in the receiving groove 63 of the housing 60. However, in Figures 2 to 4 The covered electric wires 90 are not shown.

[0039] Figure 5 The connector of this embodiment is shown along Figure 3 The perspective view of the cross section of arrow BB is shown. Figure 5 In FIG, a covered electric wire 90 is also shown. However, the covered electric wire 90 shown here is not distinguished from the covering and the core wire, but is shown as an integrated component. Figure 5 (B) and (C) also show perspective views of the counterpart connector 80 cut in cross section at corresponding locations.

[0040] like Figure 5 As shown in (A), the end of the covered electric wire 90 is crimped by the crimping portion 30 of the contact 10 , and the portion connected to the crimped end is accommodated in the accommodation groove 63 of the housing 60 .

[0041] exist Figure 5 (B) shows the mating connector 80 before being fitted to the connector 100 in the direction and posture.

[0042] In addition, Figure 5 (C) shows the mating connector 80 in a state of being fitted into the connector 100 .

[0043] The mating connector 80 has the same number of male mating contacts 81 as the contacts 10 of the connector 100. When the mating connector 80 is fitted into the connector 100, each mating contact 81 is inserted into the connector 100 through each insertion opening 62. The inserted mating contacts 81 are then clamped between the contact portion 50 and the base 20 of the contact 10 of the connector 100, and are electrically conductive with the contact 10. When the mating contacts 81 are inserted, the contact portion 50 elastically flexes. However, the effect of the flexure of the contact portion 50 is suppressed in the portion of the overhang 40 where the press-fit portion 41 is formed, and the effect on the crimping portion 30 can be ignored. Therefore, stable conductivity between the crimping portion 30 and the core wire of the covered electric wire 90 is maintained.

[0044] Furthermore, although the connector 100 including 13 contacts 10 has been described herein, the number of contacts 10 may be one or more.

[0045] Explanation of symbols

[0046] 10 Contacts

[0047] 20 base

[0048] 30 Crimping part

[0049] 30A First crimping part

[0050] 30B Second crimping section

[0051] 31 crimping slot

[0052] 40 Overhang

[0053] 41 Press-fit portion

[0054] 50 Contact Department

[0055] 60 shell

[0056] 81 Mating contact

[0057] 90 covered wire

[0058] 100 connectors.

Claims

1. A contact, characterized in that: have: base; a first crimping portion extending upward from a front end portion of the base portion and forming a first crimping groove for crimping an electric wire; a second crimping portion extending upward from a rear end portion of the base portion and having a second crimping groove formed therein for crimping an electric wire and separated from the first crimping groove at the base portion; an overhanging portion, which is folded back downward at an upper end of the first crimping portion and extends downward, and has a pressing portion pressed into the housing below the first crimping groove; as well as The contact portion extends from the lower end of the overhang portion, receives a male mating contact inserted from the rear end portion toward the front end portion between the contact portion and the base portion, and contacts the mating contact.

2. A connector, characterized in that: A housing and the contact according to claim 1 are provided, wherein the press-fit portion is press-fitted into the housing.

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