JP4618874B2 - Cable connector - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a cable connector, and more particularly to a cable connector having a structure in which an inner housing is installed in a case and each wire of the cable is terminated at a terminal mounted on the inner housing.
[0002]
[Prior art]
Conventionally, as this type of cable connector, one case is constituted by a base case and a cover case each formed in a half box shape, and an inner housing is accommodated in an inner space surrounded by the base case and the cover case, A cable connector having a configuration in which a wire of a cable introduced into an inner space and a terminal mounted on an inner housing are connected is known.
[0003]
The assembly process of the cable connector having such a configuration is performed as follows.
(1) First, the cable is processed. That is, the terminal is terminated by crimping or pressure welding at the end of each wire of the cable. Next, (2) the terminal with the wire terminated is attached to the inner housing. Of course, in the steps (1) and (2), the end of the wire may be terminated by crimping or pressure contact with a terminal already mounted on the inner housing. After the cable processed product is completed in this way, (3) the inner housing is mounted at a predetermined position of the base case. In this state, set the cable clamp bracket to fix the cable to the base case, and then fix the cable clamp bracket to the base case with screws, and finally, cover the cover. Assembly is completed by assembling the case to the base case.
[0004]
[Problems to be solved by the invention]
In the assembly work performed as described above with respect to the conventional cable connector, due to the external force transmitted to the inner housing by the cable routing in the process of (3) to (5), the vibration transmitted to the inner housing through the base case There was a phenomenon that the inner housing was lifted from the mounting position. For this reason, at the stage of assembling the cover case, it is necessary to check the mounting state of the inner housing or to correct the mounting state even though it is once mounted at a predetermined position, which impairs the assembly workability. There was a problem that.
[0005]
The present invention has been made in view of such problems, and an object thereof is to provide a cable connector having a configuration capable of improving the workability of assembly.
[0006]
[Means for Solving the Problems]
In the present invention based on the above object, the inner housing is locked to the base case at a predetermined mounting position so that the floating can be prevented.
[0007]
That the present invention, each of the configurations one case between the base case and the cover case formed in a box halves shape, the inner space surrounded by the base case and the cover case, the inner housing is accommodated, the inner space In the cable connector configured to connect the wire of the cable introduced to the terminal and the terminal mounted on the inner housing , the mounting state of the inner housing with respect to the base case is maintained between the base case and the inner housing. The first locking means is provided , and the second locking means for maintaining the assembled state of the cover case with respect to the base case is provided between the base case and the cover case. The locking means includes a locking protrusion provided on an outer surface of the side wall of the inner housing, and the base case. An inner locking projection provided on the inner side surface of the displacement side wall formed in a cantilevered manner in a portion of the side wall of the recess having a recess formed on the outer side, and the second locking means An outer locking projection provided on the outer side surface of the displacement side wall of the base case, and a window provided on a locking projection hanging from the side wall of the cover case, and the inner housing is attached to the base case. When attached, the locking projection of the inner housing and the locking latch on the inner side of the base case are locked, and when the cover case is assembled to the base case, the locking projection is placed in the recess. The outer locking projection of the base case and the window of the cover case are locked, the outer surface of the locking projection, the outer surface of the side wall of the base case, and the outer surface of the side wall of the cover case. Doo is it substantially flush It is a cable connector according to claim.
[0012]
[Action]
According to the cable connector of the present invention configured as described above, the locking means for maintaining the mounting state of the inner housing with respect to the base case is provided between the base case and the inner housing. Once the inner housing is mounted at a predetermined position, the inner housing does not float even if an external force due to the cable routing or an external force due to the vibration of the base case is transmitted, and the inner housing can be maintained in the predetermined position. it can.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the accompanying drawings.
[0014]
FIG. 1 shows an exploded view of the cable connector 1 of the embodiment. 2 to 4 show the cable connector 1 in which the cable 2 is connected and the assembly is completed. The cable connector 1 has a substantially L-shaped appearance, and the lower base case 3 and the upper cover case 4 formed in a half box shape form one case. The inner housing 6 is accommodated in the inner space 5 surrounded by the cover case 4.
[0015]
The inner housing 6 is accommodated close to the connection end 7 at one end of the case made up of the base case 3 and the cover case 4, and is connected to the mating connector (see FIG. 8) through the opening 8 formed in the connection end 7. The panel mount connector 9 can be fitted and connected. The other end of the case is a cable introduction end 10, and U-shaped notches 11 and 12 are end walls 13 of the base case 3 and the cover case 4 so that the cable 2 can be introduced into the inner space 5 from the outside. , 14.
[0016]
The upper wall 15 of the cover case 4 constitutes a latch piece 16 that is partly separated from the other and continuous from the connection end 7. A latch protrusion 17 and a push portion 18 are formed on the surface of the latch piece 16. When the latch piece 16 is displaced when mated with the panel mount connector 9, the latch protrusion 17 engages with the latch opening 19 of the panel mount connector 9, and the push portion 18 is pushed down to latch the latch protrusion 17 and the latch. The engagement can be removed by releasing the locking of the opening 19 (see FIG. 8). A grip portion 20 is formed on the upper wall 15 so as to be adjacent to the rear of the push portion 18 of the latch piece 16. A grip portion 22 is also formed on the bottom wall 21 of the base case 3 so as to form a pair with the grip portion 20.
[0017]
The inner housing 6 adapted to be accommodated close to the connection end 7 at one end of the case has a size such that both side walls 23 are substantially in contact with the inner surfaces of the side walls 24 and 25 of the base case 3 and the cover case 4 respectively. It has become. As shown in FIGS. 1, 5, and 6, locking protrusions 26 are provided on both side walls 23 of the inner housing 6, and locking protrusions are provided on the side wall 24 of the base case 3. A locking projection 27 is provided so as to face the portion 26 so that the inner housing 6 attached to the base case 3 can be held in the base case 3.
[0018]
The locking projection 26 provided on the side wall 23 of the inner housing 6 is a horizontal projection having a substantially triangular cross section. The upper portion is a horizontal shoulder 26a, and the tapered surface 26b is continuous below the horizontal shoulder 26a. It is. Further, the locking protrusion 27 of the side wall 24 is also provided with a protrusion having a substantially triangular cross section, and a horizontal shoulder 27a is arranged at the lower portion, and the tapered surface 27b is continued upward from the horizontal shoulder 27a. It is. Therefore, when the inner housing 6 is mounted on the base case 3 from above, the horizontal shoulders 26a, 27a can be locked with each other after the respective tapered surfaces 26b, 27b are in sliding contact.
[0019]
A certain range of the side wall 24 of the base case 3 including the portion where the locking projection 27 is provided is made thinner than the other portions by the recess 28 formed on the outer surface of the side wall 24. A cut groove 29 is formed in the longitudinal direction on the thinned side wall 24 so as to sandwich the locking protrusion 27. As a result, the portion provided with the locking projection 27 constitutes a displacement side wall 30 that rises in a cantilevered manner from the bottom wall 21.
[0020]
Next, a rectangular plate-shaped locking protrusion 31 is provided on the side wall 25 of the cover case 4 so as to hang down on the extension of the side wall 25 so as to correspond to the recess 28 formed in the side wall 24 of the base case 3. The width and thickness of the lock protrusion 31 are matched to the width and depth of the recess 28 (thickness direction of the side wall 24), the lock protrusion 31 is accommodated in the recess 28, and the outer surface of the lock protrusion 31 is The outer surface of the side wall 24 is made substantially flush.
[0021]
The lock projecting piece 31 is formed with a square window portion 32 at the center, and the lower edge of the square window portion 32 is a horizontal shoulder 31a. A locking projection 33 that can be locked with the horizontal shoulder 31 a is formed on the outer surface of the displacement side wall 30. The locking protrusion 33 is also provided with a protrusion having a substantially triangular cross-section, and has a horizontal shoulder 33a at the lower part and a tapered surface 33b at the upper part.
[0022]
As shown in FIGS. 2 to 4, the recess 28 and the lock protrusion 31 are opposite to the connection end 7 in addition to the position corresponding to the displacement side wall 30 near the connection end 7. The cable is provided near the cable introduction end 10 and further at an intermediate position (near the upper left corner in FIG. 2). In this regard, it should be understood that illustration is omitted in FIG. 1 to avoid complication.
[0023]
On the inner side of the end wall 13 of the base case 3, a fixing base 37 having a screw hole 36 is provided for fixing the cable clamp fitting 34 (see FIG. 7) with the screw 35. In some cases, a cylindrical post 38 as shown in FIG. 1 is provided so as to be fitted to a similar post (not shown) provided on the cover case 4 side.
[0024]
The operation of connecting the cable 2 to the cable connector 1 configured as described above can be performed in the same manner as in the prior art. That is, first, the cable 2 is processed and the end of each wire 2 a is terminated to the terminal 39 by crimping or pressure contact, and then each terminal 39 is attached to a predetermined position of the inner housing 6. After the processing of the cable 2 is completed, the inner housing 6 is mounted from above on a predetermined position near the connection end 7 of the base case 3.
[0025]
FIG. 7 shows a stage where the inner housing 6 is attached to the base case 3. When the inner housing 6 is mounted on the base case 3 from above, the locking projection 26 provided on the side wall 23 of the inner housing 6 advances so as to ride on the locking projection 27 provided on the side wall 24 of the base case 3. (The taper surfaces 26b and 27b are in sliding contact with each other), and after the displacement side wall 30 is deformed in the expanding direction, as shown in FIGS. The horizontal shoulders 26a and 27a are in a locked state. That is, the inner housing 6 is locked to the base case 3 and the mounted state is fixed.
[0026]
When the inner housing 6 is mounted, the locking projection 26 advances so as to ride over the locking projection 27. The locking projection 27 side is used as a displacement side wall 30 and is deformed independently from the other side walls 24. Since it is made to be able to be deformed, it is easy to be deformed, so that it can be mounted smoothly. Further, the material constituting the base case 3 can be made relatively hard.
[0027]
After the inner housing 6 is mounted on the base case 3, the cable 2 is fixed by setting the cable clamp bracket 34 on the fixing base 37 of the cable introduction end 10 of the base case 3 and fastening with the screw 35. Before the cable 2 is fixed, external force is transmitted to the inner housing 6 by the cable 2 being routed, the vibration of the base cover 3, and the like. Since the cover 3 is firmly held at a predetermined mounting position, it is possible to prevent a change in the mounting position such as lifting.
[0028]
Finally, the cover case 4 is assembled to the base case 3. The lock protrusions 31 suspended from the side wall 25 of the cover case 4 are housed in the corresponding recesses 28 and locked to the locking protrusions 33 provided on the side wall 24 side of the base case 3. When the cover case 4 is assembled, since the inner housing 6 is held at a predetermined position of the base case 3, it is not necessary to check or correct the mounting state of the inner housing 6, and the cover case 4 can be assembled immediately. This can improve the efficiency of assembly.
[0029]
When the cover case 4 is assembled, the displacement side wall 30 that is locked to the inner housing 6 is backed up by the lock protrusion 31, so that the property of being easily deformed is improved, and the inner housing 6 and the base Engagement of the case 3 is strengthened. Further, since the displacement side wall 30 is engaged with the lock protrusion 31 while being backed up by the inner housing 6, the engagement between the base case 3 and the cover case 4 is also strengthened particularly near the connection end 7.
[0030]
Since the outer surface of the lock protrusion 31 and the outer surface of the base cover 3 and the outer surface of the cover case 4 are substantially flush with each other, the lock protrusion 31 is not caught by other objects, and is not caught. Therefore, it is possible to prevent the lock protrusion 31 from being disengaged.
[0031]
【The invention's effect】
As described above, according to the present invention, since the inner housing is mounted at a predetermined position of the base case and the locking means that can firmly maintain the mounting position is provided, the workability of the assembly is improved. A cable connector can be provided. According to the invention of claim 2, since the locking means is constituted by the locking projection of the inner housing and the locking projection of the base case, the structure is simple and it is advantageous in manufacturing.
According to the invention of claim 3, since the locking projection of the base case is provided on the displacement side wall in the cantilever state, the locking projection can be easily retracted when the inner housing is mounted. Can be easily installed.
According to the fourth aspect of the present invention, the lock protrusion of the cover case can be locked to the outer surface of the cantilevered displacement side wall. Backing up and strengthening can strengthen the locking with the inner housing.
Furthermore, according to the invention of claim 5, since the outer wall of the lock protrusion and the outer surface of the side wall of the case are substantially flush with each other, it is possible to prevent the lock protrusion from being caught or unlocked by being caught. be able to.
[Brief description of the drawings]
FIG. 1 is an exploded perspective view of a cable connector according to an embodiment of the present invention.
FIG. 2 is a plan view of the cable connector of the embodiment.
FIG. 3 is a front view of the cable connector.
FIG. 4 is a left side view of the cable connector.
5 is a cross-sectional view taken along line AA in FIG.
6 is an enlarged cross-sectional view of a portion B in FIG.
FIG. 7 is a plan view for explaining a stage in the middle of assembling the cable connector of the embodiment.
FIG. 8 is a cross-sectional view of a state in which the cable connector of the embodiment is fitted to a mating panel mount connector.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Cable connector 2 Cable 2a Wire 3 Base case 4 Cover case 5 Inner space 6 Inner housing 23 Side wall of inner housing 24 Side wall of base case 25 Side wall of cover case 26 Locking protrusion 27 Locking protrusion 28 Recess 30 Displacement side wall 31 Lock projection 33 Locking projection 39 Terminal

Claims (1)

Each is formed is one case in the box halves shape which is formed in Besuke scan and the cover case, between the inner air enclosed by the Besuke scan and the cover case, the inner Pillow grayed is accommodated, introduced between the inner air have been cable wire over and Oite cable connctor configurations and terminal attached to the inner Pillow grayed is connected,
Wherein between the Besuke scan and the inner housing, the first Kakaritomete stage for maintaining the mounted state against the Besuke scan of the inner Pillow grayed is provided,
Between the base case and the cover case, a second locking means for maintaining the assembled state of the cover case with respect to the base case is provided,
The first locking means is cantilevered in a locking protrusion provided on the outer side surface of the side wall of the inner housing and a part of the side wall of the base case that is formed with a recess on the outside. An inner locking projection provided on the inner surface of the displacement side wall formed in
The second locking means includes an outer locking protrusion provided on the outer surface of the displacement side wall of the base case, and a window provided on a locking protrusion that hangs down from the side wall of the cover case,
When the inner housing is attached to the base case, the locking projection of the inner housing and the locking latch of the base case are locked,
When the cover case is assembled to the base case, the lock projecting piece is accommodated in the recess, the outer locking projection of the base case and the window of the cover case are locked, and the locking projection cable connector and the outer surface and the base casing outer surface and the outer surface of the side wall of the cover case of the side wall of and wherein Rukoto a substantially flush of.

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