JP7341852B2 - Connector with electrical wiring board, connector and manufacturing method of connector with electrical wiring board - Google Patents

Description

The present invention relates to a connector with an electric wiring board, a connector, and a method for manufacturing the connector with an electric wiring board.

2. Description of the Related Art Conventionally, connectors to which objects to be connected, such as electrical wiring boards (printed circuit boards, etc.) are attached in an electrically connected state, are known. In this type of connector, a plurality of terminal fittings are arranged in a line at approximately equal intervals. In this connector, the electrical connection part at one end of the terminal fitting formed in the shape of a crank is placed on the wiring pattern of the electrical wiring board outside the housing for each terminal fitting, and the electrical connection part at one end of the terminal fitting is placed on the wiring pattern of the electrical wiring board outside the housing. There is a known method for soldering a wire and a wiring pattern (for example, Patent Document 1 below).

JP2019-67685A

By the way, in this conventional connector, in order to increase the spatial distance and creepage distance between adjacent terminal fittings outside the housing, the pitch between adjacent terminal fittings is set to a predetermined value or more. Therefore, in this connector, it is difficult to make the pitch narrower than a predetermined size, so it is difficult to reduce the size of the connector. This also affects the pitch between adjacent wiring paths in the wiring pattern of the electrical wiring board, making it difficult to reduce the size of the electrical wiring board. In other words, there is a limit to the miniaturization of the conventional connector with an electric wiring board.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a connector with an electric wiring board, a connector, and a method of manufacturing the connector with an electric wiring board, which can reduce the size of the connector.

In order to achieve the above object, a connector with an electrical wiring board according to the present invention includes an electrical wiring board having a conductive wiring pattern, a connector to which the electrical wiring board is attached and to which the wiring pattern is electrically connected. , an insulating insulation coating interposed between the electrical wiring board and the connector, and the connector includes a plurality of terminal fittings and an insulating housing holding the plurality of terminal fittings. The terminal fitting includes a terminal fitting main body and an insulating insulation covering, and the terminal fitting main body includes a terminal connecting portion that is electrically connected to a mating terminal fitting, and a held object held by the housing. an electrical connection part that is physically and electrically connected to the wiring pattern of the electrical wiring board outside the housing and covered with the insulating coating part together with the wiring pattern; a connecting part that connects the held part and the electrical connection part and whose surface is covered with the insulating covering, and the insulating covering covers at least the end of the held part on the connecting part side. It is characterized by covering the surface of the body.

Here, it is preferable that the insulating coating portion covers an end portion of the insulating coating on the electrical connection portion side.

The insulating coating is an insulating resist that covers the surface of the connecting portion and the surface of at least the end of the held portion on the connecting portion side, and the terminal fitting is an insulating resist that covers the surface of the connecting portion and the surface of at least the end portion of the held portion on the connecting portion side. It is desirable that at least a conductive plated portion is provided on the surface of the portion and the surface of the electrical connection portion.

Further, the insulating coating is an insulating resist that covers the surface of the connecting portion and the surface of at least the end portion of the held portion on the connecting portion side, and the terminal fitting is an insulating resist that covers the surface of the connecting portion and the surface of at least the end portion of the held portion on the side of the connecting portion. It is desirable that a conductive plated portion formed using the insulating coating as a resist mask is provided on the surface of the main body on which the insulating coating is not formed.

Moreover, in order to achieve the above object, the connector according to the present invention includes a plurality of terminal fittings and an insulating housing that holds the plurality of terminal fittings, and the terminal fittings are insulated from the terminal fitting main body. The terminal fitting main body includes a terminal connecting portion electrically connected to a mating terminal fitting, a held portion held by the housing, and a wiring of an electrical wiring board outside the housing. an electrical connection part that is physically and electrically connected to the pattern and covered with an insulating coating part together with the wiring pattern; and an electrical connection part that connects the held part and the electrical connection part outside the housing; and a connecting part whose surface is covered and hidden by the insulating covering, and the insulating covering also covers the surface of at least the end of the held part on the connecting part side.

In addition, in order to achieve the above object, the connector with an electrical wiring board according to the present invention includes a terminal forming process of forming a plurality of terminal fittings each including a terminal fitting main body and an insulating insulation cover, and A housing molding process in which an insulating housing that holds the held portion of the terminal fitting main body is molded, and an electric wire having a conductive wiring pattern for each connector in which the terminal fitting and the housing are integrated. The method includes an assembling step in which a wiring board is attached and the wiring pattern is electrically connected, and a film forming step in which an insulating insulation coating portion is formed to be interposed between the electrical wiring board and the connector. In the terminal forming step, the terminal connecting portion electrically connected to the other terminal fitting, the held portion, and the wiring pattern of the electrical wiring board outside the housing are physically and electrically connected. The terminal fitting main body is molded, and has an electrical connection part to be connected to the electrical connection part, and a connection part to connect the held part and the electrical connection part outside the housing, and the surface of the connection part and the held part are connected to each other. The insulating coating is formed to cover at least the surface of the end portion on the connecting portion side of the portion, and in the assembling step, the electrical connection portion of each of the terminal fittings and the wiring pattern of the electrical wiring board are formed. are physically and electrically connected to each other, and in the film forming step, the electrical connection portion of each of the terminal fittings and the wiring pattern of the electrical wiring board, which are physically and electrically connected, are coated with the insulating coating. It is characterized by being covered with parts.

Here, in the terminal forming step, an insulating resist as the insulating coating is formed on the surface of the connecting part and an end of the held part on the connecting part side, and The insulating coating is formed at a different location from the end on the terminal connecting part side than the end on the connecting part side, and the surface of the connecting part continuous to the end part is also insulating. The resist is formed, and then, using the insulating coating as a resist mask, plating is performed on the surface of the terminal fitting body on which the insulating coating is not formed and the surfaces of both ends of the insulating coating. Preferably, a conductive plated portion is formed on a surface of the terminal fitting body on which the insulating coating is not formed.

In the connector with an electric wiring board, the connector, and the method of manufacturing the connector with an electric wiring board according to the present invention, the insulating cover prevents the conductor portion of the terminal fitting from being exposed to the outside except for the terminal connection portion. Therefore, this connector with an electrical wiring board, the connector, and the manufacturing method of the connector with an electrical wiring board can narrow the pitch between adjacent terminal fittings without considering the creepage distance or spatial distance between the terminal fittings. . Therefore, the connector with an electric wiring board and the connector can be made smaller in size. As described above, the connector with an electric wiring board, the connector, and the method for manufacturing the connector with an electric wiring board according to the present invention contribute to miniaturization of the body.

FIG. 1 is a perspective view showing a connector with an electric wiring board according to an embodiment. FIG. 2 is a perspective view of the electrical wiring board-equipped connector of the embodiment viewed from a different angle. FIG. 3 is a sectional view taken along the line XX in FIG. FIG. 4 is an exploded perspective view showing a connector with an electrical wiring board according to the embodiment. FIG. 5 is an exploded perspective view of the electrical wiring board-equipped connector of the embodiment viewed from a different angle. FIG. 6 is a cross-sectional view taken along the line XX in FIG. 1, showing a modified form of the insulating covering. FIG. 7 is a sectional view taken along the line XX in FIG. 1, showing a modified form of the insulating covering.

EMBODIMENT OF THE INVENTION Below, the embodiment of the manufacturing method of the connector with an electric wiring board, the connector, and the connector with an electric wiring board according to the present invention will be described in detail based on the drawings. Note that the present invention is not limited to this embodiment.

[Embodiment]
One embodiment of a connector with an electric wiring board, a connector, and a method of manufacturing the connector with an electric wiring board according to the present invention will be described with reference to FIGS. 1 to 7.

Reference numeral 1 in FIGS. 1 to 5 indicates a connector with an electric wiring board of this embodiment. This connector 1 with an electrical wiring board includes an electrical wiring board 10 having a conductive wiring pattern 11, and a connector 20 to which the electrical wiring board 10 is attached and to which the wiring pattern 11 of the electrical wiring board 10 is electrically connected. (FIG. 1, FIG. 2, FIG. 4 and FIG. 5). The connector 20 includes a plurality of terminal fittings 30 and an insulating housing 40 that holds the plurality of terminal fittings 30, and physically and electrically connects each terminal fitting 30 to the wiring pattern 11. (Figures 1 to 5). The connector 1 with an electrical wiring board further includes an insulating material interposed between the electrical wiring board 10 and the connector 20 to cover each terminal fitting 30 and wiring pattern 11 that are physically and electrically connected. A coating section 50 is provided (FIGS. 1 to 3).

The electric wiring board 10 shown here refers to a rigid board (hard printed wiring board), a flexible board such as a flexible printed circuit board (so-called FPC), or a rigid-flexible board. Here, an electric wiring board 10 as a rigid board is illustrated. Therefore, the electrical wiring board 10 and the connector 20 are attached via so-called pegs (not shown) or the like.

The wiring pattern 11 of the electrical wiring board 10 has a plurality of wiring paths for electrical connection to the connector 20, and is physically and electrically connected to the terminal fitting 30 of the connector 20 for each wiring path. . In this connector 1 with an electrical wiring board, the electrical connection portions 11a on the wiring route and the terminal fittings 30 are physically and electrically connected in pairs (FIG. 2). The wiring pattern 11 shown here is provided with four electrical connection parts 11a.

The terminal fitting 30 includes a terminal fitting main body 31 and an insulating insulation covering 32 (FIG. 3). The method for manufacturing a connector with an electrical wiring board and the method for manufacturing a connector include a terminal forming step in which a plurality of terminal fittings 30 are produced. In the cross-sectional view, the insulating cover 32 is shown with hatching for synthetic resin for convenience of illustration.

The terminal fitting main body 31 is molded from a conductive material such as metal. The terminal fitting main body 31 includes a terminal connecting portion 31a that is electrically connected to a mating terminal fitting (not shown), a held portion 31b that is held in the housing 40, and a wiring of the electrical wiring board 10 outside the housing 40. An electrical connection part 31c that is physically and electrically connected to the pattern 11 and covered with the insulating coating part 50 together with the wiring pattern 11, and a held part 31b and the electrical connection part 31c are connected outside the housing 40, It also has a connecting portion 31d whose surface is covered with an insulating covering 32 (FIG. 3).

One of the terminal connecting parts 31a and the other terminal fitting is formed into a female terminal shape, and the other one is formed into a male terminal shape. The terminal connection portion 31a in this example is formed in the shape of an axial male terminal. Further, the illustrated electrical connection portion 31c is formed as a linear shaft portion.

Specifically, the terminal fitting body 31 shown here is shaped like a linear shaft bent into a crank shape. This terminal fitting main body 31 has a linear first shaft portion 31A at one end, a linear second shaft portion 31B at the other end, and a linear third shaft portion 31C between these. (Figure 3). In the first shaft part 31A, the free end side becomes the terminal connecting part 31a, the fixed end side on the third shaft part 31C side becomes a part of the connecting part 31d, and the part between the free end side and the fixed end side becomes the held part 31b. becomes. The remainder of the connecting portion 31d is carried by the third shaft portion 31C. In this example of the first shaft portion 31A, the terminal connection portion 31a occupies approximately half of the free end side. Further, the second shaft portion 31B is used as an electrical connection portion 31c.

In the terminal forming process, the terminal fitting main body 31 is formed, for example, by press forming onto a metal plate such as a copper plate serving as a base material.

The insulating cover 32 is provided to avoid electrical conduction between adjacent terminal fittings 30 outside the housing 40. For this reason, the insulating cover 32 is provided so as to cover the surface of the connecting portion 31d protruding from the housing 40 in the terminal fitting main body 31, as shown above. Thereby, in the connector 1 with an electric wiring board and the connector 20, even if the interval between the connecting portions 31d of adjacent terminal fittings 30 is narrowed, it is possible to avoid energization between the connecting portions 31d. However, by narrowing this interval between adjacent terminal fittings 30, the creepage distance between the end portions 31b ₁ (FIG. 3) on the connecting portion 31d side of the held portion 31b becomes shorter. Therefore, the insulating cover 32 is formed to cover the surface of the connecting portion 31d and also cover the surface of at least the end portion _31b1 of the held portion 31b on the side of the connecting portion 31d (FIG. 3). Therefore, in the terminal forming process, the insulating cover 32 is formed that covers the surface of the connecting portion 31d and the surface of at least the end portion _31b1 of the held portion 31b on the connecting portion 31d side. Thereby, in the connector 1 with an electric wiring board and the connector 20, even if the interval between adjacent terminal fittings 30 is narrowed, it is possible to avoid energization between the terminal fittings 30 on the held portion 31b side.

For example, as the insulating coating 32, an insulating resist is used that covers the surface of the connecting portion 31d and the surface of at least the end portion _31b1 of the held portion 31b on the connecting portion 31d side.

By the way, the terminal fitting 30 shown here includes a conductive conductor plating portion (for example, tin plating or gold plating) 33 on a part of the surface of the terminal fitting main body 31 (FIG. 3). This exemplary terminal fitting 30 includes at least a conductor plating section 33a provided on the surface of the terminal connection section 31a, and a conductor plating section 33b provided on the surface of the electrical connection section 31c. Therefore, in the terminal forming process, a resist mask as a masking member is formed on the surface of the terminal fitting main body 31 at a location where the conductor plating part 33 is not required, and the surface of the terminal fitting main body 31 is plated. A conductor plating portion 33 is formed on the surface of the metal fitting body 31 at a location where a resist mask is not provided. In the terminal fitting 30 of this embodiment, the resist mask used during the plating process is also used as the insulating cover 32 (FIG. 3). Therefore, the terminal fitting 30 includes a conductor plating portion 33 formed on the surface of the terminal fitting main body 31 on which the insulating covering 32 is not formed, using the insulating covering 32 as a resist mask.

As shown above, in the terminal forming process, the insulating cover 32 is formed that covers the surface of the connecting portion 31d and the surface of at least the end portion _31b1 of the held portion 31b on the connecting portion 31d side. However, in this terminal forming process, there is a possibility that the plating process will be performed not only on the parts requiring the conductor plating parts 33a and 33b but also on at least both ends of the insulating cover 32. Therefore, in the held portion 31b, there is a possibility that the conductor remains in the outermost layer of the insulating coating 32 at the end portion _31b1 on the side of the connecting portion 31d. Therefore, in the terminal forming process, when the conductor plating part 33 is provided and both ends of the insulating coating 32 are also plated, the surface of the connecting part 31d and the side of the connecting part 31d of the held part 31b are The insulating coating 32 is applied not only to the surface of the end portion 31b ₁ of the held portion 31b but also to the surface of the connecting portion 31b ₂ (FIG. 6) which is connected to the end portion 31b ₁ of the held portion 31b on the terminal connection portion 31a side. form an insulating resist. In this terminal forming step, after an insulating resist is formed as the insulating covering 32, this insulating covering 32 is used as a resist mask to prevent the insulating covering 32 on the terminal fitting body 31 from being formed. The surface and the surfaces of both ends of the insulating sheath 32 (the end 32a of the part formed on the surface of the connecting part _31b2 in the insulating sheath 32 and the end 32b of the insulating sheath 32 on the electrical connection part 31c side) The plating process is performed to form conductive plated portions 33a and 33b on the surface of the terminal fitting main body 31 on which the insulating cover 32 is not formed.

Here, the connecting part _31b2 may be only the part to be plated on the end part _31b1 side in the axial direction of the held part 31b (FIG. 6), or the entire part other than the end part _31b1 . It may occupy the area or most of the entire area (FIG. 7). In the former case, the insulating coating 32 (end portion 32a) on the surface of the connecting portion _31b2 is plated. On the other hand, in the latter case, the end portion 32a of the insulating cover 32 on the surface of the connecting portion _31b2 on the terminal connecting portion 31a side is plated. In the latter case, the area of the conductor plating portion 33 can be reduced more than in the former case, so that the cost of the terminal fitting 30 can be reduced.

Further, although not shown, the insulating cover 32 may be provided up to the point in front of the contact point with the terminal connection portion of the mating terminal fitting in the terminal connection portion 31a. In other words, the insulating cover 32 is applied to the surface of the connecting portion 31d, the surface of the held portion 31b, and the surface of the held portion 31b side of the terminal connection portion 31a with respect to the contact point with the terminal connection portion of the other terminal fitting. It may be provided. Thereby, in this terminal fitting 30, the area of the conductor plating portion 33 can be further reduced, so that the cost of the terminal fitting 30 can be further reduced.

The housing 40 is molded from an insulating material such as synthetic resin. The housing 40 shown here holds the held portion 31b for each terminal fitting 30 with the terminal connecting portion 31a exposed and the electrical connecting portion 31c and the connecting portion 31d protruding from the outer wall surface 41a (see FIG. 3). Further, the housing 40 shown here is formed into a rectangular shape and has a rectangular internal space 40a with one end open, and the periphery of the internal space is a rectangular tube-shaped connector fitting part. 40b (FIGS. 1 and 4). In the internal space 40a, the terminal connecting portion 31a of each terminal fitting 30 is arranged in an exposed state with the tip in the axial direction facing the opening. In this housing 40, a mating connector (not shown) is fitted and connected to the connector fitting part 40b, so that the terminal connecting part of each mating terminal fitting is fitted into the terminal connecting part 31a of each terminal fitting 30. connected. This exemplary housing 40 accommodates four terminal fittings 30. The respective terminal fittings 30 are held in the housing 40 in a state in which the terminal connecting portions 31a are oriented in the same direction and arranged in a line at approximately equal intervals. That is, the held portions 31b of the respective terminal fittings 30 are held in the housing 40 with their axial directions aligned in the same direction and arranged at approximately equal intervals in a direction orthogonal to the axial direction. The method for manufacturing a connector with an electrical wiring board and the method for manufacturing a connector include a housing molding step in which the housing 40 is molded.

For example, in this connector 20, separately molded terminal fittings 30 and housing 40 may be prepared, and each terminal fitting 30 may be assembled to the housing 40. In this case, in the housing molding process, when molding the housing 40, a holding part (not shown) that holds the held part 31b is formed for each terminal fitting 30. In this case, the method for manufacturing a connector with an electrical wiring board and the method for manufacturing a connector are such that the electrical connecting portion 31c and the connecting portion 31d of each terminal fitting 30 are protruded from the outer wall surface 41a of the housing 40, and the terminal fitting 30 is A terminal assembling step is provided for assembling the held portion 31b to the holding portion of the housing 40 every 30 times. For example, the holding portion of the housing 40 is formed in the shape of a through hole, and the held portion 31b is held by press-fitting the held portion 31b.

Instead, in this connector 20, the housing 40 holding the held portion 31b of each terminal fitting 30 is prepared by integrally molding the housing 40 with the terminal fitting 30 formed in advance. It's okay. This case is illustrated here. In this case, in the housing molding process, a plurality of terminal fittings 30 are placed in a mold (not shown), and the synthetic resin material filled in the mold allows the housing 40 to be held by the held portion of each terminal fitting 30. 31b.

The electrical wiring board 10 is attached to the connector 20 in which each terminal fitting 30 and the housing 40 are integrated in this manner. The method for manufacturing a connector with an electrical wiring board and the method for manufacturing a connector include an assembly step in which the electrical wiring board 10 is attached to the connector 20 and the wiring pattern 11 is electrically connected. In the assembly process, the electrical connection portions 31c of each terminal fitting 30 and the wiring pattern 11 of the electrical wiring board 10 are physically and electrically connected. For example, in this assembly process, the connector 20 is placed on the electrical wiring board 10 so that the electrical connection part 31c of each terminal fitting 30 is placed on the electrical connection part 11a to be connected in the wiring pattern 11. It will be destroyed. In this assembling step, between the connector 20 and the electrical wiring board 10, the electrical connection portion 31c of the terminal fitting 30 and the electrical connection portion 11a of the wiring pattern 11 that are paired are soldered. Thereby, the pair of electrical connection portions 31c and 11a are physically and electrically connected by the solder portion 60 (FIG. 3). Note that the solder portion 60 in the figure is for convenience of illustration, and may be formed, for example, between the electrical connection portion 31c and the electrical connection portion 11a, or only between them.

The insulating coating 50 is formed after the assembly process. The insulating coating portion 50 is formed to cover the electrical connection portion 31c of each terminal fitting 30 and the wiring pattern 11. Here, the solder portion 60 is also covered with the insulating coating portion 50. The method for manufacturing a connector with an electrical wiring board and the method for manufacturing a connector include a film forming step for forming the insulating coating portion 50.

Here, as shown above, in the connector 1 with electrical wiring board and the connector 20, even if the interval between the connecting parts 31d of adjacent terminal fittings 30 is narrowed, the insulation provided on the surface of the connecting parts 31d The covering 32 can avoid electrical conduction between the connecting portions 31d. However, by narrowing this interval between adjacent terminal fittings 30, there is a possibility that the creepage distance between the ends of the electrical connection part 31c on the connecting part 31d side becomes short. Therefore, the insulation coating portion 50 shown here is applied not only to the electrical connection portion 31c, wiring pattern 11, and solder portion 60 of each terminal fitting 30, but also to the electrical connection portion 31c side of the insulation coating 32 of each terminal fitting 30. The end portion 32b is also formed to cover (FIG. 3). For example, if the end portion 32b of the insulating coating portion 50 is entirely or partially inserted into the solder portion 60, the insulating coating portion 50 covers the electrical connection portion 31c of each terminal fitting 30, the wiring pattern 11, and the solder portion 60. That's fine. Thereby, in the connector 1 with an electrical wiring board and the connector 20, even if the interval between adjacent terminal fittings 30 is narrowed, it is possible to avoid energization between the terminal fittings 30 on the electrical connection portion 31c side.

However, as described above, the terminal fitting 30 shown here partially includes the conductor plating portion 33, and during the plating process when forming the conductor plating portion 33, the insulating cover 32 is removed using a resist mask. It is used as. Therefore, in the film forming process, when the conductor plating part 33 is provided and both ends of the insulating cover 32 are also plated, the electrical connection part 31c of each terminal fitting 30 and each terminal Not only the end 32b of the insulating sheath 32 in the metal fitting 30, the wiring pattern 11, and the solder part 60, but also the connecting part 32c (FIGS. 6 and 7) that connects the end 32b of the insulating sheath 32 on the held part 31b side ) is formed to cover the insulating coating portion 50. Thereby, in the connector 1 with an electrical wiring board and the connector 20, even if the interval between adjacent terminal fittings 30 is narrowed, it is possible to avoid energization between the terminal fittings 30 on the electrical connection portion 31c side.

In the film forming step, for example, a mold (not shown) is installed on the electrical wiring board 10 attached to the connector 20. The mold surrounds the area where the insulating coating portion 50 is to be formed. In the film forming step, an insulating material such as a liquid synthetic resin is poured into the mold, and the insulating material is solidified to form an insulating coating portion 50 that is a solidified product of the insulating material. Ru. The insulating material is desirably moisture-proof.

As shown above, in the connector 1 with an electrical wiring board, the connector 20, and the method of manufacturing the connector 1 with an electrical wiring board according to the present embodiment, the insulating cover 32 allows the terminal fitting 30 to become a conductor except for the terminal connecting portion 31a. Do not expose any parts to the outside. Therefore, even if the electrical wiring board-equipped connector 1 and the connector 20 are designed to handle high voltage, for example, the pitch between adjacent terminal fittings 30 can be narrowed. In other words, the method for manufacturing the connector 1 with an electrical wiring board, the connector 20, and the connector 1 with an electrical wiring board according to the present embodiment does not take into account the creepage distance or the spatial distance between adjacent terminal fittings 30. The pitch can be narrowed. Therefore, the connector 1 with electric wiring board and the connector 20 can be made smaller in size. In this way, the connector 1 with an electric wiring board, the connector 20, and the method for manufacturing the connector 1 with an electric wiring board of the present embodiment contribute to miniaturization of the physique.

Here, in the connector 1 with an electrical wiring board, the connector 20, and the manufacturing method of the connector 1 with an electrical wiring board of the present embodiment, the conductor plating portion 33 is formed on the entire terminal fitting 30 except for the insulating cover 32. ing. However, in the terminal fitting 30, for example, the portion of the insulating cover ₃₂ shown in FIG _. ) may be exposed. However, in the manufacturing method of the connector 1 with an electrical wiring board, the connector 20, and the connector 1 with an electrical wiring board according to the present embodiment, as in the previous example, the formed insulation It is desirable to leave the covering 32 intact. This is because in the manufacturing method of the connector 1 with electrical wiring board, the connector 20, and the connector 1 with electrical wiring board, the process can be simplified by omitting such a cleaning step, so the cost can be reduced. This will contribute to the reduction.

In addition, in the manufacturing method of the connector 1 with an electrical wiring board, the connector 20, and the connector 1 with an electrical wiring board of this embodiment, the cost can be reduced by narrowing the area in which the conductor plating part 33 is formed as described above. It is possible to reduce the Furthermore, here, for the terminal fitting 30, the cost may be reduced by forming the conductor plating portion 33 only at the contact point in the terminal connection portion 31a and the electrical connection portion 31c.

Furthermore, in the connector 1 with an electrical wiring board, the connector 20, and the method for manufacturing the connector 1 with an electrical wiring board of the present embodiment, the terminal fittings 30 are plated using the insulating cover 32 as a resist mask. Alternatively, in the terminal fitting 30, the entire surface of the terminal fitting main body 31 may be plated, and then the insulating cover 32 may be formed on the conductor plating. Furthermore, in the connector 1 with an electrical wiring board, the connector 20, and the method for manufacturing the connector 1 with an electrical wiring board of the present embodiment, the surface of the terminal fitting main body 31 of the terminal fitting 30 is not plated, and the insulating cover 32 is not plated. may be formed only.

1 Connector with electrical wiring board 10 Electrical wiring board 11 Wiring pattern 20 Connector 30 Terminal fitting 31 Terminal fitting body 31a Terminal connecting part 31b Holding part 31b ₁ end part 31b ₂ connecting part 31c Electrical connecting part 31d Connecting part 32 Insulating cover 32b End portion 33, 33a, 33b Conductor plating portion 40 Housing 50 Insulating coating portion

Claims (7)

an electrical wiring board having a conductive wiring pattern;
a connector to which the electrical wiring board is attached and to which the wiring pattern is electrically connected;
an insulating insulation coating interposed between the electrical wiring board and the connector;
Equipped with
The connector is
multiple terminal fittings,
an insulating housing that holds a plurality of the terminal fittings;
Equipped with
The terminal fitting includes a terminal fitting main body and an insulating insulation covering,
The terminal fitting main body includes a terminal connecting portion that is electrically connected to the other terminal fitting, a held portion that is held by the housing, and a physically connected portion outside the housing with respect to the wiring pattern of the electrical wiring board. and an electrical connection part that is electrically connected and covered with the insulating coating part together with the wiring pattern, and the held part and the electrical connection part are connected outside the housing, and the surface is covered with the insulating coating. a connecting portion that is covered up;
A connector with an electric wiring board, wherein the insulating covering also covers at least a surface of an end portion of the held portion on the connecting portion side. 2. The connector with an electrical wiring board according to claim 1, wherein the insulating coating portion covers an end of the insulating coating on the electrical connection portion side. The insulating coating is an insulating resist that covers the surface of the connecting portion and the surface of at least the end portion of the held portion on the connecting portion side,
The connector with an electrical wiring board according to claim 1 or 2, wherein the terminal fitting includes at least a conductive plated portion provided on a surface of the terminal connection portion and a surface of the electrical connection portion. . The insulating coating is an insulating resist that covers the surface of the connecting portion and the surface of at least the end portion of the held portion on the connecting portion side,
A claim characterized in that the terminal fitting is provided with a conductive plated portion formed on a surface of the terminal fitting main body on which the insulating covering is not formed, using the insulating covering as a resist mask. The connector with an electrical wiring board according to item 1 or 2. multiple terminal fittings,
an insulating housing that holds a plurality of the terminal fittings;
Equipped with
The terminal fitting includes a terminal fitting main body and an insulating insulation covering,
The terminal fitting main body includes a terminal connecting portion that is electrically connected to the other terminal fitting, a held portion that is held by the housing, and a physical and electrical connection with respect to the wiring pattern of the electrical wiring board outside the housing. an electrical connection part that is connected to the electrical connection part and covered with an insulating coating part together with the wiring pattern, and the held part and the electrical connection part are connected outside the housing, and the surface is covered with the insulation coating. a connecting portion that is covered up;
The connector is characterized in that the insulating covering also covers at least a surface of the end portion of the held portion on the connecting portion side. a terminal forming step of forming a plurality of terminal fittings each including a terminal fitting body and an insulating insulation covering;
a housing molding step in which an insulating housing for holding a held portion of the terminal fitting body is molded for each terminal fitting;
an assembly step in which an electrical wiring board having a conductive wiring pattern is attached to each connector in which the terminal fitting and the housing are integrated, and the wiring pattern is electrically connected;
a film forming step of forming an insulating insulation coating interposed between the electrical wiring board and the connector;
has
In the terminal forming step, a terminal connecting portion electrically connected to a mating terminal fitting, the held portion, and physically and electrically connected to the wiring pattern of the electrical wiring board outside the housing. The terminal fitting main body is molded, and has an electrical connecting portion that connects the held portion to the electrical connecting portion outside the housing, and a connecting portion that connects the held portion to the held portion. The insulating covering is formed to cover at least the surface of the end on the connecting part side,
In the assembly step, the electrical connection portion of each of the terminal fittings and the wiring pattern of the electrical wiring board are physically and electrically connected,
In the film forming step, the electrical connection portion of each of the terminal fittings and the wiring pattern of the electrical wiring board that are physically and electrically connected are covered with the insulating coating portion. manufacturing method for connectors with In the terminal forming step, an insulating resist as the insulating coating is formed on the surface of the connecting portion and the end of the held portion on the connecting portion side, and the connecting portion in the held portion is The insulating coating is formed in a region different from the end on the side of the terminal connection part than the end on the side, and the insulating resist is also formed on the surface of the connecting part connected to the end. Then, using the insulating coating as a resist mask, a plating process is performed on the surface of the terminal fitting main body on which the insulating coating is not formed and the surfaces of both ends of the insulating coating, and the terminal 7. The method of manufacturing a connector with an electrical wiring board according to claim 6, wherein a conductive plated portion is formed on a surface of the metal fitting body on which the insulating coating is not formed.

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