JPH0573863U - Connection structure of terminal fittings - Google Patents

Abstract

(57) [Summary] [PROBLEMS] The present invention is intended to prevent excessive displacement of a male terminal fitting that abuts an elastic contact plate of a female terminal fitting to prevent elastic lowering of the elastic contact plate. [Structure] The connecting plate portion 8 is provided on the substrate portion 7 of the female electric contact portion B _1.
The receiving portion 11 of the male terminal fitting C is formed so as to face the connecting plate portion 8 by facing the elastic contact plate 10 through the male terminal fitting and the hole-like engaging portion 15 is formed in the connecting plate portion 8. The positioning protrusion 14 at the tip of C is engaged with the hole-shaped engaging portion 15.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention provides a new connection structure in a combination of a female terminal fitting and a male terminal fitting used for connecting a wire harness or the like.

[0002]

[Prior Art]

In FIG. 6, the female electric contact portion a ₁ of the female terminal fitting a is provided with a folded elastic contact plate b ₁ so as to receive the mating male terminal fitting d between itself and the facing plate portion c. As shown in FIG. 6 (B), when the male terminal fitting d is largely displaced by a so-called swinging action or the like, the elastic contact plate b may be excessively deformed and its elasticity may be impaired.

[0003]

[Problems to be solved by the device]

 The present invention focuses on the above points and prevents the movement of the male terminal fitting in the female electric contact portion to protect the elastic contact plate.

[0004]

[Means for Solving the Problems]

 In order to achieve the above object, in the present invention, an elastic contact plate is provided on the base plate part of the female type electric contact part via a connecting plate part so as to oppose the base plate part, so that it is provided on the opposite side of the connecting plate part. A configuration is adopted in which the receiving portion of the male terminal fitting is formed, the engaging portion is formed on the connecting plate portion, and the tip portion of the male terminal metal fitting is engaged with the engaging portion.

[0005]

[Action]

 The engaging portion prevents lateral movement of the male terminal fitting in a direction crossing the axial direction.

[0006]

【Example】

 In FIG. 1, A is a board-shaped collective housing attached 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, housings A ₁ having groove-shaped terminal accommodating chambers 1 are connected in a fan shape, and the side walls 2 of adjacent housings A ₁ and A ₁ are shared (see FIG. 5). 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 is composed of a female electric contact portion B ₁ and an electric wire connecting portion B ₂ which are continuously extended by extending in the front-rear direction. At the female electric contact portion B ₁ , a connecting plate is connected to the base plate portion 7. The opposing plate portion 9 is provided via the portion 8 and is formed into a substantially U-shaped cross-sectional shape. The opposing plate portion 9 is folded back so that the elastic contact plate 10 faces the substrate portion 7, and the connecting plate portion 8 is formed. On the side opposite to the above, a receiving portion 11 of the mating male terminal fitting C facing the side intersecting with the extension direction is formed. The board portion 7 is provided with a guide rib 7a, which is provided when the male terminal fitting C is inserted, on the surface facing the elastic contact plate 10. On the front ends of the base plate portion 7 and the counter plate portion 9, locking projections 12, 12 are formed to extend sideways, and a locking hole 13 is formed on the rear side of the base plate portion 7. A positioning protrusion 14 is formed at the tip of the male terminal fitting C, and a hole-shaped engaging portion 15 into which the positioning protrusion 14 is inserted is formed in the connecting plate portion 8 facing the receiving portion 11.

The terminal accommodating chamber 1 has a first gap S ₁ by setting the groove width dimension X ₁ longer than the outer width dimension X ₂ of the female electric contact portion B ₁ . In addition, the opening 4 has a second gap S ₂ by setting the opening width dimension Y ₁ to be slightly longer than the thickness dimension Y ₂ of the male terminal fitting C. The first dimension of the gap S ₁ is set to be longer than the second dimension of the gap S ₂ (see FIG. 2 (A)).

In the above-mentioned configuration, the female terminal fitting B to which the electric wire W is connected is brought closer to the housing A ₁ from above the terminal accommodating chamber 1, and the locking projections 12 and 12 are located below the locking portion 5 from the front. , And in this state, the rear part of the female terminal fitting B is inserted into the groove-shaped terminal accommodating chamber 1 with the locking part 5 as a pivotal fulcrum, and the locking hole 13 is engaged with the locking projection 6. Prevents the female terminal tool B from moving upward and backward.

When the male terminal fitting C is inserted into the receiving portion 11 of the female electric contact portion B ₁ through the opening 4, the male terminal fitting C is guided by the elastic contact plate 10 to the guide rib 7 formed on the surface of the base plate portion 7. 2a is pressed against the base plate 7, and the positioning protrusion 14 is engaged with the engaging portion 15 of the connecting plate portion 8 by moving the substrate portion 7 as a guide, and the male terminal fitting C and the female terminal The connection of the metal fitting B is doubled by the elastic contact plate 10 and the engaging portion 15, and the connection is secured (see FIG. 2 (B)).

In this case, even if the positions of the receiving portion 11 and the male terminal fitting C are slightly deviated from each other, the female electric contact portion B ₁ is left and right in the terminal accommodating chamber 1 by having the first gap S _1. Moved to, the position between the two is almost the same. Therefore, the positioning protrusion 14 can be securely engaged with the engaging portion 15. In particular, when a plurality of female terminal fittings B and male terminal fittings C are arranged in series, it is effective to perform the respective positioning and the engagement of the positioning projection 14 and the engaging portion 15 at the same time.

Since the male terminal fitting C engages with the opening 4 and the positioning protrusion 14 at the tip engages with the engaging portion 15, the male terminal fitting C is prevented from being largely displaced by a so-called swinging action. Maintain a stable connection with the female electrical contact B ₁ . Further, in order to prevent the male terminal metal fitting C from moving in the direction opposite to the insertion direction and being incompletely connected or disconnected from the female electric contact portion B ₁ , as shown in FIG. The engagement protrusion 15 may be engaged with the locating protrusion 14 and then bent to form the bent portion 14 ′ on the connecting plate 8 so as to prevent it from coming off. The retaining structure is not limited to the above-described embodiment. For example, as shown in FIG. 4, the positioning protrusion 14 is caulked on the connecting plate 8 to form the caulking portion 14 ″, soldering, or the like. With this retaining structure, the male terminal fitting C is secured to be connected to the female terminal fitting B ₁ .

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.

[0015]

[Effect of the device]

 As described above, according to the present invention, as described above, an elastic contact plate is provided on the base plate portion of the female type electric contact portion via the connecting plate portion to face the base plate portion so that the receiving portion of the male terminal fitting is provided on the opposite side of the connecting plate portion. Since the engaging portion is formed on the connecting plate to engage the tip portion of the male terminal fitting with the engaging portion, the lateral movement of the male terminal fitting in the female electric contact portion is prevented. It is possible to prevent the male terminal fitting from excessively deforming the elastic contact plate and impairing its elasticity, and the connection between the male terminal fitting and the female terminal fitting is doubled by the elastic contact plate and the engaging part. And the connection is secured.

[Brief description of drawings]

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

2A and 2B are cross-sectional views showing a connecting process in the above.

FIG. 3 is a sectional view showing another connection structure of the present invention.

FIG. 4 is a sectional view showing still another connection structure of the present invention.

FIG. 5 is a perspective view of a collective housing according to the present invention.

6A and 6B are operation explanatory views of a conventional example.

[Explanation of symbols]

B female terminal metal fitting B ₁ female type electric contact portion C male terminal metal fitting 7 base plate portion 8 connecting plate portion 10 elastic contact plate 11 receiving portion 14 positioning protrusion 15 engaging portion

Claims (3)

[Scope of utility model registration request] 1. A receiving portion for a male terminal fitting is formed on the opposite side of the connecting plate portion by providing an elastic contact plate on the substrate portion of the female electric contact portion via a connecting plate portion so as to face the substrate portion. A connecting structure for a terminal fitting, wherein an engaging portion is formed on the connecting plate portion so that a tip portion of the male terminal fitting is engaged with the engaging portion. 2. A hole-shaped engaging portion is formed in the connecting plate portion, and a positioning protrusion provided at the tip of the male terminal fitting is projected from the hole-shaped engaging portion and bent onto the female type electric contact portion. The terminal metal connection structure according to claim 1, wherein 3. A hole-shaped engaging portion is formed in the connecting plate portion, and a positioning protrusion provided at the tip of the male terminal fitting is projected from the hole-shaped engaging portion and is caulked on the female type electric contact portion. The connection structure for terminal fittings according to claim 1, wherein: