JPH0573868U - Locking structure for terminal fittings - Google Patents

Abstract

(57) [Abstract] [Purpose] The present invention intends to make a connector of a housing and a female terminal fitting small in size. [Structure] A housing A ₁ provided with locking portions 5 and 6 on the front and inner surfaces of a side wall 2 forming a groove-shaped terminal accommodating chamber 1 and an opening 4 formed in a bottom wall 3, and a female electric contact portion B _1. At the front end, there is a locking projection 12 that engages with the locking portion 5, and a female terminal fitting B having a locking hole 13 that engages with the locking portion 6 at the rear. The locking projection 12 is engaged with the locking part 5 at the front end of the housing A ₁ while being positioned above the housing chamber 1, and the locking part 5 is used as a fulcrum of rotation for the female terminal fitting B.
The rear part is press-fitted into the groove-shaped terminal accommodating chamber 1 and the inner surface of the locking part 6
The engaging hole 13 is engaged with.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 According to the present invention, when a terminal fitting is combined with a housing, a new locking structure is adopted so that the whole structure can be made compact.

[0002]

[Prior Art]

In FIG. 8 (Actual No. 59-103382), a is a connector housing, in which a flexible locking piece c and a stopper d are provided in a terminal accommodating chamber b penetrating in the front-rear direction, and a bottom wall e is provided. An insertion hole g for the mating male terminal f is formed. Reference numeral h denotes a female terminal fitting, which has a female electrical contact portion h ₁ and a wire connecting portion h ₂ .

In the above structure, as shown in FIG. 9, the female terminal metal fitting h pre-connected to the electric wire i at the electric wire connecting portion h ₂ is inserted from the rear into the terminal accommodating chamber b and abutted against the stopper d. In this state, the flexible locking piece c is engaged with the rear portion of the female electric contact portion h ₁ to prevent rearward pulling out. In this structure, the height of the female terminal metal fitting h is increased. In addition to L ₁ , the height L ₂ of the bottom wall e and the bending space c ₁ of the flexible locking piece c to the height L ₃ of the upper wall j are increased, so that the overall height is increased and individual dimensions are increased. It was impossible to expect any further miniaturization other than shortening the length.

[0004]

[Problems to be solved by the device]

 The present invention has been made by paying attention to the above-mentioned points, and by devising a structure for locking the terminal fitting to the housing, one wall can be omitted and the entire size can be reduced.

[0005]

[Means for Solving the Problems]

 In order to achieve the above object, in the present invention, a housing having locking portions on one side and the other side in the extending direction of the groove-shaped terminal accommodating chamber, and the locking portions on the one side and the other side are respectively engaged. And a terminal fitting provided with a locked portion for locking the terminal fitting above the groove-shaped terminal accommodating chamber while engaging one of the locked portions with the locking portion on one side. , Adopting a configuration in which the terminal fitting is inserted into the groove-shaped terminal accommodating chamber with the one-side locking portion as a fulcrum, and the other of the locked portions is engaged with the other-side locking portion. Furthermore, the housing has a structure in which a holding portion for the electric wire connected to the terminal fitting is provided in the extension direction of the groove-shaped terminal accommodating chamber.

Further, in the present invention, the housing is provided with a plurality of groove-shaped terminal accommodating chambers arranged in a radial pattern, and the terminal fitting including the electric contact portion and the electric wire connecting portion is oriented with the electric wire connecting portion facing the radial center portion. In this state, the groove-shaped terminal accommodating chamber is inserted and locked from above.

[0007]

[Action]

 Push the terminal fitting from above the groove-shaped terminal accommodating chamber with one of the engaged parts engaged with the engaging part on one side of the housing, and the other of the engaged parts is the engaging part on the other side. The wire is held by pressing it into the holder at this time.

Further, by inserting the terminal fittings from above into the plurality of groove-shaped terminal accommodating chambers arranged in a radial pattern, the wires previously connected to the terminal fittings are automatically assembled.

[0009]

【Example】

 In FIG. 1, A is a board-like collective housing made of resin for attaching to an inhibitor switch unit used in a transmission part of an automobile, B is a female terminal fitting, and C is a male terminal fitting.

In the collective housing A, the housings A ₁ having the groove-shaped terminal accommodating chambers 1 are connected in a fan shape, and the side walls 2 of the adjacent housings A ₁ and A ₁ are shared (see FIG. 2). .. In each housing A ₁ , an opening 4 is formed in the bottom wall 3 into which a mating male terminal fitting C is inserted, and a pair of projecting locking portions is formed on the upper front surface of each side wall 2 facing each other. 5 is provided, and one side wall 2 is provided with a projecting locking portion 6 having a tapered guide surface 6a facing the terminal accommodating chamber 1.

The female terminal fitting B includes a female electric contact portion B ₁ and an electric wire connecting portion B ₂ , and in the female electric contact portion B ₁ , a counter plate portion 9 is formed on the base plate portion 7 via a connecting plate portion 8. The folded elastic contact plate 10 of the facing plate portion 9 faces the base plate portion 7 and forms the receiving portion 11 of the mating male terminal fitting C on the opposite side of the connecting plate portion 8. Locking projections 12 and 12 that expand laterally are continuously provided at the front ends of the base plate portion 7 and the counter plate portion 9, and a lock hole 13 is formed behind the counter plate portion 9 (FIGS. 1 and 3). (See (A) and (B)).

In the above structure, the female terminal fitting B to which the electric wire W has been caulked and connected at the electric wire connecting portion B ₂ in advance is brought close to the housing A ₁ from above the groove-shaped terminal accommodating chamber 1 (see FIG. )), The locking projections 12 and 12 as locked parts are positioned from the front to the lower part of the locking part 5 (FIG. 4 (B)), and in this state, the locking part 5 is used as a pivotal fulcrum. The rear portion of the metal fitting B is press-fitted into the groove-shaped terminal accommodating chamber 1 and the locking hole 13 as the locked portion is engaged with the locking projection 6 to move the female terminal metal fitting B upward and backward. Block (Fig. 4 (C)).

FIG. 5 shows a case in which the wire holding portions 14 are provided adjacent to each other in the extension direction of the groove-shaped terminal accommodating chamber 1, and the wire holding portions 14 have a pair of holding portions each having a tapered wire guide portion 14a. The narrow opening 14d is formed by the protrusions 14b being provided opposite to each other by the flexible rod portion 14c. Therefore, when the terminal fitting B is inserted into the groove-shaped terminal accommodating chamber 1, the connecting electric wire W is inserted and held in the holding space 14e between the flexible rods 14c through the narrow opening 14d. (FIG. 6) Assists the holding action of the terminal fitting B housed in the groove-shaped terminal housing chamber 1.

FIG. 7 shows that female terminal fittings B to which electric wires W are connected are respectively housed in the groove-shaped terminal accommodating chambers 1 of the collective housing A in which a plurality of groove-shaped terminal accommodating chambers 1 are radially formed. The wire W is held by the wire holding portion 14 (FIG. 5), and in this case, the plurality of wires W are automatically focused toward the base point P of the radial arrangement. As shown in phantom lines in FIG. 7, electric wires W ′ derived from the conventional parallel-arranged housing A ′ are not diffused, and the space can be effectively used.

When the collective housing A having a plurality of female terminal fittings B is attached to an inhibitor switch unit (not shown), each female electric contact portion B ₁ is connected to the corresponding male terminal fitting C. It In the present embodiment, the collective housing A is not limited to the structure attached to the inhibitor switch unit, but may be any device connected to various electric devices or the like. Further, the collective housing A may be integrally formed with various electric devices, or the male metal fitting C may be fixed by insert molding or the like. In this case, the female terminal fitting B is connected to the male terminal fitting C at the same time as being inserted into the housing A ₁ of the collective housing A.

Further, the terminal accommodated in the groove-shaped terminal accommodating chamber 1 of the housing A ₁ includes _one of the female terminal fitting B and the male terminal fitting C, and the engaging portions 5, 6 and the engaged portions 12, 13 Any structure may be used as long as it is accommodated by engaging with. Further, the locking portions 5 and 6 and the locked portions 12 and 13 are not limited to the shapes of the protrusions and the holes, and any structure may be adopted as long as the corresponding portions can be engaged with each other. In addition, the engaging portion 5 and the engaging portion 6 engage with the engaged portion 12 on one side and serve as a fulcrum of rotation, and engage with the engaged portion 13 on the other side, whereby the terminal metal fitting is engaged. It suffices as long as it can be accommodated in the groove-shaped terminal accommodating chamber 1.

[0017]

[Effect of the device]

 As described above, the present invention provides a housing having locking portions on one side and the other side in the extending direction of the groove-shaped terminal accommodating chamber, and a locked portion that engages with the locking portions on the one side and the other side, respectively. A terminal fitting provided with a portion, and while the terminal fitting is positioned above the groove-shaped terminal accommodating chamber, one of the engaged portions is engaged with the engaging portion of the one side, Since the terminal fitting is inserted into the groove-shaped terminal accommodating chamber with the locking portion as a fulcrum, the other of the locked portions is engaged with the locking portion on the other side. Can be omitted, and the terminal metal fitting locking structure can be made compact.

In addition, a plurality of groove-shaped terminal accommodating chambers are radially arranged in the housing, and the terminal fitting including the electric contact portion and the electric wire connecting portion is arranged in a state where the electric wire connecting portion faces the radial center portion from above. Since it is inserted and locked in the groove-shaped terminal accommodating chamber, the connecting wire of the terminal fitting gathers in the minimum space when the terminal fitting is inserted into the housing, and the space behind the housing can be effectively used.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of an embodiment of the present invention.

FIG. 2 is a perspective view of the collective housing of the above.

3 is a side view of the female terminal fitting of FIG. 1, FIG.
(B) is a bottom view.

FIG. 4 shows the housing and the female terminal fitting of FIG.
(A) (B) (C) shows the binding process.

FIG. 5 is a perspective view of an electric wire holder according to an embodiment of the present invention.

FIG. 6 is a front view of the above.

FIG. 7 is a plan view of the housing in which the terminal fitting shown in FIG. 1 is housed.

FIG. 8 is an exploded perspective view of a conventional example.

FIG. 9 is a cross-sectional view of the above combined state.

[Explanation of symbols]

A ₁ Housing B Female terminal fitting B ₁ Electric contact part B ₂ Electric wire connection part 1 Groove-shaped terminal accommodating chamber 5,6 Locking part 12,13 Locked part 14 Wire holding part

Claims (3)

[Scope of utility model registration request] 1. A housing having locking portions provided on one side and the other side in the extending direction of the groove-shaped terminal accommodating chamber, and a locked portion that engages with the locking portions on the one side and the other side, respectively. The terminal fitting is positioned above the groove-shaped terminal accommodating chamber and one of the locked portions is engaged with the locking portion on the one side, and the locking portion on the one side is formed. The terminal metal fitting structure is characterized in that the terminal metal fitting is inserted into the groove-shaped terminal accommodating chamber with the pivot as a fulcrum, and the other of the locked parts is engaged with the locking part on the other side. 2. The terminal metal fitting locking structure according to claim 1, wherein the housing is provided with a holding portion for an electric wire connected to the terminal metal fitting in an extension direction of the groove-shaped terminal accommodating chamber. .. 3. A housing is provided with a plurality of groove-shaped terminal accommodating chambers arranged in a radial pattern, and a terminal fitting comprising an electric contact portion and an electric wire connecting portion is provided from above with the electric wire connecting portion facing the radial center portion. An engaging structure for a terminal fitting, which is inserted into the groove-shaped terminal accommodating chamber and engaged therewith.