JP3674748B2 - Connector and manufacturing method thereof - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a connector and a manufacturing method thereof.
[0002]
[Prior art]
FIG. 12 shows a connector 100 disclosed in Japanese Patent Laid-Open No. 5-89927.
[0003]
The method for manufacturing the connector 100 will be briefly described. First, after a terminal member 101 is mounted in advance in a molding die (not shown), the molding resin is filled in the die. After the resin is solidified, the connector 100 is removed from the mold.
[0004]
[Problems to be solved by the invention]
Now, when the resin is poured into the molding die, considerable pressure is applied to the inside of the die. For this reason, the center part of the terminal member 101 may be pressed by the molding resin, and the connector 100 may be formed while being bent and deformed. In such a connector 100, since the direction of the terminal member 101 has shifted | deviated, it will interfere with connection with another connector.
[0005]
The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a connector capable of restricting deformation of a terminal fitting in a connector that integrally forms the terminal fitting, and a method for manufacturing the connector. By the way.
[0006]
[Means for Solving the Problems]
In the connector manufacturing method according to the first aspect of the present invention for solving the above-described problem, the terminal fitting housed in the connector housing is a molded part embedded in the connector housing, and the remaining part has A method of manufacturing a connector to be a connection portion connected to a mating terminal fitting, wherein the terminal fitting is formed by projecting a supported portion adjacent to the mold portion, and the terminal fitting is connected to the connector. When mounting on the molding die of the housing, the supported portion is supported together with the connecting portion, and then the molding resin is filled into the mold, and the supported portion has predetermined side edges of the mold portion. The metal mold is formed so as to be bent in the opposite L shape over the length range, while the mold has a support portion having a groove shape capable of receiving both supported portions. And said that you are.
[0007]
According to a second aspect of the present invention, a connector housing includes a connector housing, a mold portion housed in the connector housing and buried and fixed in the connector housing, and a connection portion connectable to the mating terminal fitting. A connector comprising a terminal fitting, wherein a supported portion that is adjacent to the mold portion and supported by a molding die of the connector housing is exposed from the wall surface of the connector housing in which the mold portion is embedded. In addition, the supported portion is formed by bending both side edges of the mold portion so as to form L-shapes that are opposite to each other over a predetermined length range. It is possible to fit into a groove-shaped support portion formed in the above.
[0008]
A connector according to a third aspect of the present invention is the connector according to the second aspect, wherein the mold portion is provided with a through hole that penetrates the terminal fitting, and the formed meat is filled in the through hole. The terminal fitting is attached in a retaining state .
[0009]
Operation and effect of the invention
According to the first and second aspects of the present invention, when the molding resin is filled in the mold, the molding resin filling pressure acts on the mold portion of the terminal fitting. However, since the supported portion is formed near the mold portion in the terminal fitting and is supported by the mold, the deformation of the terminal fitting due to the filling pressure can be avoided. In addition, since the supported portion has an L-shaped cross section, when the molding resin is poured, it is possible to regulate the deflection in the two directions of the width direction and the thickness direction of the terminal fitting.
[0010]
According to the invention of claim 3, since the molding resin passes through the through hole and is filled with the molded meat, the terminal fitting is prevented from coming off from the connector housing.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
Next, a reference example of the present invention will be described in detail with reference to FIGS.
First, the configuration of the connector 1 will be described with reference to FIGS.
The connector 1 includes a connector housing 2 formed of a synthetic resin and a terminal fitting 3 that is integrally molded inside the connector housing 2. The connector 1 has a substantially rectangular tube shape as a whole, and a pair of fitting ports 4 for fitting with a mating connector (not shown) are opened at both ends thereof.
[0012]
The terminal fitting 3 is formed by punching a conductive plate. As shown in FIG. 4, a pair of connecting portions 5 that can be connected to a mating terminal fitting (not shown) are respectively provided at both ends thereof. It is formed with the same length. Further, an intermediate portion of both connection portions 5 is a molded portion 6 embedded in the connector housing 2. A supported portion 7 projects from both side edges of the mold portion 6 along the length direction of the terminal fitting 3. Further, the mold part 6 is provided with two through holes 8 penetrating in the thickness direction of the terminal fitting 3. The through hole 8 allows the resin forming the connector housing 2 to wrap around to the back side.
[0013]
Inside the connector housing 2, the terminal fitting 3 described above is integrally formed. Both side portions of the connector housing 2 are cylindrical hood portions 10 into which mating connectors can be fitted, and both have fitting ports 4 opened. A connecting portion 5 of the terminal fitting 3 protrudes in the hood portion 10. Further, both hood portions 10 are partitioned by a partition wall 9. The partition wall 9 is provided at a position closer to the fitting port 4 on one side (right side in FIG. 2) than the center position of the connector housing 2. In addition, ribs 11 project from both surfaces of the partition wall 9 toward the fitting port 4 to partition the connection portions 5 that protrude into the two hood portions 10. As shown in FIG. 3 and the like, both the ribs 11 are formed at a position apart from the upper and lower wall surfaces 13 of the hood portion 10. Further, both ribs 11 are provided so as to be closer to the fitting opening 4 than the end edge 5A of the terminal fitting 3, and insulation between the poles of the both terminal fittings 3 is achieved.
[0014]
In FIG. 2, a fixing wall 12 for fixing both terminal fittings 3 protrudes from the left surface of the partition wall 9. The fixed wall 12 is continuously formed on the upper and lower wall surfaces 13 of the hood portion 10. Further, inside the fixed wall 12, where there is a through hole 8 of the terminal fitting 3, the meat is filled so as to connect the upper and lower sides of the fixed wall 12.
The supported portion 7 of the terminal fitting 3 is exposed from both side surfaces of the fixed wall 12. Further, of the pair of ribs 11 on the side on which the fixed wall 12 is projected, the connecting wall 14 is connected to the upper and lower wall surfaces 13 to the same position as the position where the edge of the fixed wall 12 protrudes. It is said that.
[0015]
Further, in FIG. 2, a lock projection 15 is provided projecting from the upper wall of the left and right end portions of the connector housing 2 to maintain the engaged state with the mating connector.
Next, a method for manufacturing the connector 1 will be described with reference to FIGS. First, before explaining the manufacturing method, the molding dies 16, 17 will be explained.
[0016]
As shown in FIG. 5, the molding dies 16 and 17 are composed of a pair of left and right ones. The mold 16 is formed to be longer in the left-right direction than the mold 17, and the parting line of both the molds 16, 17 is on the right side in FIG. 5 rather than just the center position in the length direction of the connector 1. It is provided in the place shifted to.
[0017]
In addition to the recesses 18, 19, 20 for forming the components of the connector 1, the connecting portion mounting recess 21 for mounting the terminal fitting 3 is formed inside the molding dies 16, 17. Is provided. In the figure, reference numeral 18 denotes a hood recess 18 for forming the hood 10, 19 is a rib recess 19 for forming the rib 11, and 20 is a fixed wall for forming the fixed wall 12. It is the recessed part 20 for use. Among these, the fixed wall recess 20 is provided only in the mold 16. The fixed wall recess 20 is continuously provided with a connecting portion mounting recess 21. Further, a support portion 22 into which the supported portion 7 of the terminal fitting 3 can be fitted is recessed in the side edge portion of the fixed wall recess 20. The mold 17 is provided with a connecting portion mounting recess 21 (see FIG. 5).
[0018]
In order to mold the connector 1, first, the connecting portion 5 on one side of the terminal fitting 3 is inserted into the connecting portion mounting recess 21 of the mold 16. At this time, the supported portion 7 is fitted into the support portion 22 and is in a state where both side edges of the terminal fitting 3 are supported (see FIG. 6).
[0019]
Next, both molds 16 and 17 are closed (see FIGS. 7 to 9). At this time, the connection portion 5 on the other side is inserted into the connection portion mounting recess 21 of the mold 17, and both the connection portions 5 of the terminal fitting 3 are supported by the dies 16 and 17.
[0020]
With the terminal fittings 3 mounted in the molds 16 and 17, a molding resin is poured into the molds from a resin spout (not shown). The resin is filled in the mold without any gaps to form the connector 1 (see FIG. 10). When the molding resin is filled in the dies 16, 17, the molding resin filling pressure acts on the mold portion 6 against the terminal fitting 3. However, since the supported portion 7 is formed near the mold portion 6 in the terminal fitting 3 and is supported by the mold 16, deformation of the terminal fitting 3 due to the filling pressure can be avoided. Further, at this time, resin enters the through hole 8 of the terminal fitting 3 to form a molded meat so that the terminal fitting 3 is prevented from coming out of the connector housing 2.
Finally, when the resin is solidified, the molds 16 and 17 are separated and the connector 1 formed inside is taken out.
As described above, according to the present reference example , the supported portion 7 is formed in the terminal fitting 3 near the mold portion 6 and is supported by the mold 16, so that the deformation of the terminal fitting 3 due to the filling pressure is performed. Can be avoided.
Furthermore, since the molding resin passes through the through-hole 8 and is filled with the molded meat, the terminal fitting 3 is prevented from coming out of the connector housing 2.
[0021]
< Embodiment >
Next, an embodiment of the present invention will be described with reference to FIG. In this embodiment, the structure of the supported portion of the reference example is changed, and other configurations are the same as those of the reference example . For this reason, the same code | symbol is attached | subjected to the same structure and description is abbreviate | omitted.
[0022]
Both side edge portions of the mold part 6 of the terminal fitting 3 are projected longer on both sides than the supported part 7 of the reference example , and the tips thereof are bent in an L-shape opposite to each other and covered. A support portion 7 'is formed.
On the other hand, the support portion 22 ′ of the mold 16 has an L shape that matches the cross-sectional shape of the supported portion 7 ′.
[0023]
In the embodiment formed in this way, the supported portion 7 ′ has an L-shaped cross section, and therefore, when the molding resin is poured, the terminal metal 3 can swing in two directions, the width direction and the thickness direction. Can be regulated.
Further, when the terminal fitting 3 is attached to the mold 16, it can be inserted even if the terminal fitting 3 is rotated, so that the attaching operation can be performed smoothly.
[0024]
The present invention is not limited to the above-described embodiment, and the following, for example, are also included in the technical scope of the present invention.
(1) The support part does not need to be provided continuously, and may be provided intermittently along the mold part of the terminal fitting.
(2) The number of through holes is not limited to two and may be one or three or more. In addition, when one through hole is provided, a rotation regulating effect can be obtained in accordance with the effect of preventing the terminal fitting from being removed by forming the long diameter along the length direction of the terminal fitting.
[Brief description of the drawings]
1 is a front view of a connector according to a reference example . FIG. 2 is a cross-sectional view taken along line AA in FIG. 1. FIG. 3 is a cross-sectional view taken along line BB in FIG. Front view (B) Plan view of the terminal fitting [Fig. 5] Plan sectional view before the terminal fitting is mounted on the mold [Fig. 6] Plan sectional view when the terminal fitting is mounted on one mold [Fig. 7] FIG. 8 is a cross-sectional view taken along line CC in FIG. 7. FIG. 9 is a cross-sectional view taken along line DD in FIG. 7. FIG. 10 is a view when resin is filled in the mold. Plan sectional view [FIG. 11] Front sectional view when the terminal fitting is mounted on the mold in this embodiment [FIG. 12] Side sectional view of the connector in the conventional example [Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Connector 2 ... Connector housing 3 ... Terminal metal fitting 5 ... Connection part 6 ... Mold part 7 ... Supported part 8 ... Through-hole 16, 17 ... Molding die 22 ... Support part

Claims (3)

The terminal fitting housed in the connector housing is a method of manufacturing a connector, a part of which is a molded part embedded in the connector housing, and the remaining part is a connection part connected to the mating terminal fitting. ,
In the terminal metal fitting, a supported portion is formed so as to be adjacent to the mold portion, and when the terminal metal fitting is put on a molding die of the connector housing, the supported portion is supported together with the connection portion. Then, the molding resin is filled in the mold,
Further, the supported part is formed by bending both side edges of the mold part so as to form L-shapes opposite to each other over a predetermined length range, while the mold is provided with both supported parts. A connector manufacturing method, characterized in that a support portion having a receivable groove shape is formed . A connector comprising a connector housing, and a terminal fitting formed inside the connector housing and formed with a molded portion that is buried and fixed inside the connector housing, and a connecting portion that can be connected to a mating terminal fitting. ,
  From the wall surface of the connector housing in which the mold part is buried, a supported part that is adjacent to the mold part and supported by a molding die of the connector housing is exposed, and the supported part is the mold part. Both side edges of the connector housing are bent so as to form L-shapes opposite to each other over a predetermined length range, and are fitted into groove-shaped support portions formed in the same mold when the connector housing is formed. A connector characterized in that it is possible. The mold part is provided with a through-hole penetrating the terminal fitting, and the terminal fitting is attached in a state in which the terminal fitting is prevented from being detached by filling the through-hole with a molded meat. The connector according to claim 2.

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