JP3060359B2 - Electrical connector - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connector in which a covered electric wire connected to an electric device or the like provided inside a casing of a hydraulic device and a covered electric wire connected to a control device or the like provided outside the casing are fitted with a connector. More particularly, the present invention relates to an electrical connector in which a covered electric wire in the connector is fixed and sealed by filling a resin material.

[0002]

2. Description of the Related Art Conventionally, an automatic transmission mounted on an automobile or the like has a torque converter and a transmission gear mechanism, and the rotation of an engine taken out by a crankshaft is transmitted to an input shaft via a torque converter. Further, the transmission is transmitted to a speed change gear mechanism, and a gear shift is performed by engaging and disengaging friction engagement means such as a multi-plate brake or a multi-plate clutch.

The engagement and disengagement of the friction engagement means is performed by a hydraulic circuit. This hydraulic circuit is provided with a valve, a hydraulic servomotor, an accumulator, and the like, and a solenoid valve for forming a signal hydraulic pressure of each of these components. A solenoid for operating the solenoid valve is housed in a transmission case in a state of being attached to a valve body.

Therefore, the electrical connection with a control device for controlling a solenoid, an oil temperature sensor, and the like is made by fitting a covered electric wire inside and outside the casing through a mounting hole provided in a transmission case. Among the female and male connectors, a connector fixed to the mounting hole includes a rubber stopper and an oil ring for preventing oil in the oil pan from leaking outside and preventing water or the like from entering from outside. Is provided.

As shown in FIG. 12, a conventional L-shaped electrical connector 50 has an L-shaped connector base 51 and a connector main body 52 fitted into an open end of the connector base.
It is composed of Since the connector main body 52 is separate, various types of connector main bodies 52 can be selected and mounted. This connector body 52
A male terminal 41 to which a covered electric wire 42 is connected is fitted therein.

On the other hand, the connector base 51 is an L-shaped cylindrical body, and the connector main body 52 is provided at one open end.
Is fitted, and a rubber stopper 43 is attached to the other open end. The connector base portion 51 is filled with a resin material 44 in order to secure the covered electric wire 42 and secure the sealing property. This resin material is filled by a rubber plug 4 that penetrates and holds a connector body 52 into which a male terminal 41 is inserted and a covered electric wire 42.
After the connector 3 is attached to the connector base portion 51, the connector body 52 is filled so that air bubbles are not gradually formed from the connector main portion 52 side. Therefore, when the resin material 44 is filled, an O.D.
The ring 53 is fitted outside.

The connector base 51 is fixed on the transmission case after filling with the resin material, and an O-ring 47 is externally fitted on the connector base 51 as a sealing member.

[0008]

However, in the conventional electric connector 50 as described above, since the cable is bent in an L-shape, the wiring property of the insulated wire 42 is poor. Also,
Since the insulated wire 42 itself is bent in a free state before being filled with the resin material 44, a load is applied to the core portion of the rear end of the male terminal 41, and the male terminal 41 may be displaced or slipped out. Depending on the situation, the core wire may be partially broken.

Further, the connector base 51 is bent and a plurality of covered electric wires 42 are routed therein to form a complicated internal space, and the injection distance of the resin material 44 is reduced by the connector base. The length is approximately equal to the length of the portion 51. For this reason, the fluidity of the resin material 44 is poor, the filling operation takes time, and the filling resin material 44 has uneven filling, and there remains a problem in work efficiency.

Further, the male terminal 4 on the connector body 52 side is provided.
1, the resin material 44 is connected to the male terminal 41.
The male terminal 41 may adhere to the tip.
The possibility of impairing the conduction function.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems, and to provide an electric connector which can improve the workability of filling a resin material with good wiring of a covered electric wire in a connector. Is to do.

[0012]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a casing having a connection terminal having a covered wire connected to a rear portion thereof,
A substantially L-shaped connector main body for fitting the other connector from a direction perpendicular to the central axis of the mounting hole formed thereon, and a resin material connected to the rear of the connector main body and having a resin material therein. in the electrical connector but it made more connector base portion to be filled,
Contact with an intermediate portion of the connection terminal is insert molded at the time of connector body molding, after the covered electric wire to the connecting terminal rear end projecting from the connector main body rear end is connected, the connector base portion fitting to the connector body rear end After the connector base
This can be achieved by an electrical connector characterized in that the connector base portion is filled with a resin material from an end direction .

[0013]

[0014] The above object is attained by having a shape that fits within the outer diameter of the connector base when the connector main body is fitted into the connector base.

[0015]

[0016] Further, the above object is to provide the connector base portion with a charge.
An electric wire holding member for holding the coated electric wire until the filled resin material is solidified is provided, and at least a front end surface in the connector base portion is provided with a space for ensuring fluidity of the resin material. Is achieved by

[0017]

In the electrical connector of the above configuration according to the present invention, contact with an intermediate portion of the connection terminal is insert molded at the time of connector body molding, covered wire is connected to the connection terminal rear end projecting from the connector main body rear end Then, the connector base part is fitted to the rear end of the connector body part, and the connector base part is
The resin material is filled in the connector base from the rear end direction .

Therefore, the step of inserting the connection terminal into the connector main body and the filling of the resin material are reduced, and the core wire of the covered electric wire is directly connected to the rear end of the connection terminal. Therefore, the coated electric wire is not bent in the connector base portion and is in a linear state, the injection distance of the resin material is reduced, and the internal space is not complicated. Moreover, since the resin material from the mated connector body rear end into the connector body portion is filled, the filling operation of the resin material is facilitated, the time required for the filling operation of the resin material can be shortened.

[0019]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the electrical connector of the present invention will be described in detail with reference to FIGS. FIG. 1 shows the first embodiment of the present invention.
FIG. 2 is a cross-sectional view taken along line X-X in FIG. 1, FIG. 3 is a perspective view of a connector main body showing a state during connection of the insulated wire, and FIG. 4 is a perspective view of the insulated wire in FIG. FIG. 5 is an explanatory view illustrating a filling operation of the resin material, FIG. 6 is an explanatory view illustrating a state in which the completed electrical connector is being attached to the casing, and FIG. And FIG. 8 is an explanatory view showing a completed state of mating of the mating connector.

As shown in FIG. 1, an electric connector 1 according to the present embodiment comprises a substantially L-shaped connector main body 2 and a cylindrical connector base 3. Connector body 2
The female connector 4 in which the male connector 5 fitted with the female terminal (not shown) connected to the insulated wire 8 is fitted, and the connector base 3 formed integrally with the lower portion of the female connector 4 It is composed of a flange portion 2a to be connected. In the connector main body 2, an intermediate portion 6a (see FIG. 2) of the male terminal 6 for connecting the coated electric wire 7 is insert-molded. The connector base 3 is connected to the lower end of the connector main body 2 and filled with an epoxy-based curable resin material 10 therein. Further, a rubber stopper 9 is attached to the rear end of the connector base 3, and an O-ring 11 for sealing is externally fitted and fixed on the casing in a watertight state.

More specifically, as shown in FIG. 2, the upper part of the connector main body 2 is a female connector 4, and a tip end of a male terminal 6 formed by insert molding protrudes, and a connector fitting port into which the male connector 5 is fitted. 4a is open laterally.
A locking piece 4b for fitting with the male connector 5 is formed on the upper part of the female connector 4. The male terminal 6
The middle part 6a is bent in a hook shape, and the lower end part 6b protrudes from the flange part 2a provided at the lower part.

After the core wire 12 of the insulated wire 7 is connected to the rear end 6b of the male terminal 6, the connector base 3 is connected. This connection is made by a pair of lock pieces 13, 13 provided at opposing positions of a cylindrical fitting portion 2 b provided on the lower surface of the flange portion 2 a, and a pair of lock pieces 13 provided on the inner wall surface of the connector base portion 3. Is engaged with the locking projections 3b, 3b. A resin material 10 is filled from the open rear end side of the connected connector base 3, and then a rubber stopper 9 is formed.
Is mounted with the covered electric wire 7 inserted. An annular groove 18 for externally fitting the O-ring 11 and an annular groove 19 for fitting a retaining ring 17 (see FIG. 7) for fixing the O-ring 11 on the casing are formed on the outer peripheral wall of the connector base 3. Have been.

As shown in FIG. 3, the core wire 12 at the tip of the coated electric wire 7 is electrically connected to the rear ends 6b of the plurality of male terminals 6 projecting from the lower surface of the flange portion 2a of the connector main body 2 by soldering or the like. . The rear end portion 6b of the male terminal 6 is fitted into the fitting portion 2 of the connector body 2 in consideration of the connection work of the core wire 12.
b Projects further from the lower end face.

As shown in FIG. 4, when the connection of all the coated electric wires 7 is completed, the connector base 3 is connected. That is, the cylindrical fitting portion 2b formed on the lower surface of the flange portion 2a of the connector main body portion 2 is connected by being fitted into the connector base portion 3. A pair of flexible lock pieces 13, 13 provided at opposing positions on the fitting portion 2 b and having a locking hole at the center are provided on a pair of inner walls of the connector base 3. The locking state is established by engaging the locking projections 3b, 3b.

As shown in FIG. 5, an electric connector 1 in which a connector body 2 and a connector base 3 are connected and integrated.
A liquid thermosetting resin material R having an epoxy adhesive property is injected from the rear end of the connector base portion 3 opened upward in an inverted state to the vicinity of a level 10a indicated by a two-dot chain line in the figure. By this injection, the rear end portion 6b of the male terminal 6 and the core 12 of the covered electric wire 7 are completely sealed in a watertight state, and are securely fixed in the connector base portion 3.

Next, as shown in FIG.
Is attached to a mounting hole 15 formed on the casing 14. That is, the outer diameter N of the connector base portion 3 is
Of the electrical connector 1
Is pushed out of the casing 14 from the inside 16 of the casing 14 through the mounting hole 15. In addition, female connector 4
The length M of the portion is arranged so as to fit within the outer diameter N of the connector base 3.

Therefore, the electric connector 1 is pushed up from the inside 16 of the casing 14 and is fitted from the upper end portion of the flange 2 a of the connector main body 2 while being in contact with the inner peripheral edge of the mounting hole 15. Then, when the connector body 2 portion completely comes out of the casing 14, the projecting slope 3 a at the lower end of the connector base 3 contacts the inner peripheral slope 15 a formed at the lower edge of the mounting hole 15, and An annular groove 19 protrudes from the upper surface of the casing 14.

As shown in FIG.
The electric connector 1 is completely fixed to the casing 14 by the fitting of 7. At this time, the connector base 3
The O-ring 11 externally fitted on the outer peripheral surface is in contact with the inner peripheral surface of the mounting hole 15 in a watertight state, so that it is ensured that oil in the casing 14 leaks outside and that water or the like enters the casing 14. To prevent. Then, as shown in FIG. 8, the male connector 5 is fitted to the female connector 4 from the lateral direction. That is,
The locking piece 4b of the female connector 4 is fitted and fixed in the locking receiving portion 5a of the male connector 5. As a result, the insulated wire 7 inside the casing 14 and the insulated wire 8 outside the casing 14 are reliably and electrically connected.

Next, a second embodiment of the electrical connector of the present invention will be described in detail with reference to FIGS. FIG. 9 is a perspective view of an electric connector according to a second embodiment of the present invention.
FIG. 11 is a plan view of the connector base portion in FIG. 9, and FIG.
FIG. 7 is a sectional view taken along the line YY in FIG. The same parts as those in the first embodiment are denoted by the same reference numerals, and the description is omitted.

As shown in FIG. 9, the electric connector 21 of this embodiment comprises a substantially L-shaped connector main body 22 and a cylindrical connector base 23. The connector body 22 includes a female connector 24 into which a mating male connector (not shown) is fitted, a flange 22 a integrally formed below the female connector 24, and connected to the connector base 23. It is composed of a fitting portion 22b. An intermediate portion of a male terminal 26 for connecting the insulated wire 7 is insert-molded in the connector main body portion 22, and a rear end of the male terminal 26 for connecting the core wire 12 of the insulated wire 7 is provided. An electric wire connection portion 26b having a U-shaped cross section is provided, and protrudes from the end surface of the flange portion 22a.

The connector base 23 is connected to the lower end of the connector main body 22 and is filled with a resin material.
In the connector base portion 23, when the insulated wire 7 is connected to the wire connection portion 26b, the insulated wire 7 is arranged at a position facing the predetermined wire connection portion 26b in advance, and the insulated wire 7 is filled until the filled resin material is hardened. The wire holding member 27 for holding the wire 7 is provided. This electric wire holding member 27
Is provided with a plurality of partition ribs 27b for isolating the electric wires on the substrate portion 27a.

More specifically, as shown in FIG. 10 and FIG. 11, the electric wire holding member 27 is composed of a substrate portion 27a for integrally connecting opposing inner wall surfaces of the connector base portion 23, and on both side surfaces of the substrate portion 27a. , A plurality of partition ribs 27b are vertically provided. The plurality of covered electric wires 7 are isolated one by one by the partition ribs 27b. A space 28 is provided at the front end of the wire holding member 27 in the connector base 23. The space 28 is for preventing the fluidity of the resin material from being impaired due to the resin material adhering to the wire holding member 27 when the resin material is injected. The outer peripheral wall of the connector base 23 has an annular groove 18 for externally fitting the O-ring 11 and an annular groove 19 for fitting a retaining ring for fixing the O-ring 11 on the casing.

In the procedure for assembling the electric connector 21 having the above structure, first, the coated electric wires 7 are inserted into the electric wire holding members 27 in the connector base 23 one by one. And the male terminal 26
After the core wire 12 of the coated electric wire 7 is sandwiched between the electric wire connecting portions 26b and fixed by soldering or the like, the connector base portion 23 is connected. This connection is achieved by the engagement between a pair of flexible lock pieces 13 provided at positions facing the insertion portion 22 b and a pair of locking projections 23 b provided on the inner wall surface of the connector base 23. It is performed by afterwards,
An epoxy-based thermosetting resin material is injected from the open rear end side of the connected connector base 23, and the male terminal 2
6 and the core 12 of the covered electric wire 7 are completely sealed in a watertight state, and are securely fixed in the connector base 23.

[0034]

In the electrical connector of the present invention as described in the foregoing, contact with an intermediate portion of the connection terminal is insert molded at the time of connector body molding, coating the connection terminals rear end projecting from the connector main body rear end After the wires are connected,
The connector base is fitted to the rear end of the connector body, and the connector base is filled with a resin material from the rear end direction of the connector base .

Therefore, the work of mounting the covered electric wire into the connector main body is eliminated, the work of connecting the covered electric wire to the connection terminal is performed outside the connector, and the resin material is mainly filled in the connector base portion. there is no fear of a resin material such as adhesion to the tip of the pin, the work of connecting the covered wire is that easy and Do
Both have large inlets, making it easier to fill resin material.
Therefore, work efficiency can be improved.

[0036]

Further, when the connector main body is fitted to the connector base, it has a shape that fits within the outer diameter of the connector base, so that the mounting work into the mounting hole on the casing can be easily performed. .

[0038]

An electric wire holding member is provided in the connector base, and a space is provided in a front end portion of the connector base. Therefore, the filled resin material hardens.
The until the covered electric wire can be reliably held, the resin material
Since the resin material can be injected at the time of filling without impairing the fluidity of the resin material, the working efficiency can be further improved. Thereby, the productivity of the electrical connector can be improved, and a high-quality electrical connector with high reliability can be provided.

[Brief description of the drawings]

FIG. 1 is a perspective view of an electric connector according to a first embodiment of the present invention.

FIG. 2 is a sectional view taken along line XX in FIG.

FIG. 3 is a perspective view of a connector main body showing a state during connection of a covered electric wire.

FIG. 4 is a front view showing a completed connection state of the covered electric wire in FIG. 3;

FIG. 5 is an explanatory diagram illustrating a filling operation of a resin material.

FIG. 6 is an explanatory view showing a state in which the completed electrical connector is being attached to a casing.

FIG. 7 is an explanatory diagram showing a state in which attachment to a casing in FIG. 6 is completed.

FIG. 8 is an explanatory diagram showing a mating completed state of a mating connector.

FIG. 9 is a perspective view of an electric connector according to a second embodiment of the present invention.

FIG. 10 is a plan view of the connector base portion in FIG. 9;

11 is a sectional view taken along the line YY in FIG.

FIG. 12 is a sectional view showing a conventional electric connector.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Electrical connector (1st Example) 2 Connector main body 2a Flange 2b Fitting part 3 Connector base 3a Overhanging slope 3b Locking projection 4 Female connector 4a Connector fitting opening 4b Locking piece 5 Male connector 6 Male terminal 6a Terminal middle part 6b Terminal rear end part 7, 8 Insulated wire 9 Rubber plug 10 Resin material 10a Filling level 11 O-ring 12 Core wire 13 Lock piece 14 Casing 15 Mounting hole 16 Inside casing 17 Retaining ring 18 O-ring annular groove 19 Stop Ring-shaped annular groove 21 Electrical connector (second embodiment) 22 Connector body 23 Connector base 26 Male terminal 27 Wire holding member 28 Space L Mounting hole diameter M Female connector length N Connector base outer diameter

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-2-278673 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) H01R 13/52 301 H01R 13/46 301

Claims (4)

(57) [Claims] The method according to claim 1] connection terminal a covered wire is connected to the rear portion
With respect to the center axis of the mounting hole formed on the casing.
An electrical connector comprising: a substantially L-shaped connector main body for fitting a mating connector from a right angle direction ; and a connector base connected to the rear of the connector main body and filled with a resin material. in previous Kise' with an intermediate portion of the connection terminal is insert molded at the time of connector body molding, after the covered electric wire to the connecting terminal rear end projecting from said connector body rear end is connected, the connector base portion said An electrical connector fitted to a rear end of a connector main body, wherein a resin material is filled in the connector base from a rear end direction of the connector base . 2. The connector body according to claim 1, wherein
When fitted to the body, the outer diameter of the connector
The electrical connector according to claim 1, wherein the electrical connector has a shape that fits into the connector. 3. Before filling the connector base portion,
An electric wire for holding the covered electric wire until the resin material hardens.
The electrical connector according to claim 1, further comprising a wire holding member . 4. At least a front end in the connector base portion.
There is a space on the surface to secure the fluidity of the resin material.
4. The electrical connector according to claim 3 , wherein the electrical connector is provided.