JP4851170B2 - Board with connector - Google Patents

Description

  The present invention relates to a board with a connector used for an electric junction box of an automobile.

Conventionally, a board with a connector has been used in an electric junction box of an automobile or the like.
That is, the connector is connected on the substrate on which the circuit pattern is formed.
The connector has a terminal, one end of which is connected to the substrate, and the other end forms a connector connecting portion.
For example, a fuse or another connector formed at the end of the wire harness is connected to the connector connection.
In such a board with a connector, a structure in which a connector is screwed onto the board is known (Patent Document 1, Patent Document 2).
In the technique of Patent Document 1, the connection direction of the connector connection portion is perpendicular to the board surface. However, in the technique of Patent Document 2, the connection direction of the connector connection surface is parallel to the board surface.

JP-A-10-189179 JP 2000-215784 A

However, the conventional fixing by screwing disclosed in Patent Documents 1 and 2 has the following problems.
1. Screwing work takes too long. In particular, as the number of connectors increases due to the recent increase in the number of functions of electrical junction boxes and the increase in the number of wire harnesses to be connected, problems have become more serious.
2. Increase in the number of parts by screwing leads to an increase in cost.
Moreover, the technique disclosed in Patent Document 2 has the following problems.
3. Since the connection portion can be arranged only at the peripheral portion of the substrate, the number and arrangement of connectors that can be arranged on one substrate are greatly limited.

  SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a connector-equipped substrate that can shorten the manufacturing time, reduce the component cost, reduce the number and arrangement of connectors, and can be integrated.

The board with connector of the present invention according to claim 1 is a board with connector comprising a board, a terminal fixed to the board, and a connector housing, and a plurality of connectors arranged on the board. A cover having an opening that exposes a part of each of the plurality of connectors, and a mounting component is disposed on the board in a state adjacent to the connector, and the connector housing is disposed on the board surface. Formed with a connection opening that opens vertically above and a leg that opens below the connection opening and perpendicular to the substrate surface, on the lower outer periphery of the peripheral wall of the connection opening, said mounting a position above the component, and, in a position overlapping in contact from below with respect to the peripheral edge of the opening in front Symbol cover, to form a rib, on the substrate, wherein the mounting part one Department is in front The connector is disposed on the lower side of the rib, has a positioning hole on the board, and forms a protrusion protruding downward at the lower part of the leg of the connector, and the leg is on the board. The connector is fixed on the board by inserting the protrusion into the positioning hole while standing on the board, and the terminal is moved vertically upward from the board to the board surface in the internal space of the connector housing. with protruding space in communication with, and protrudes to the tip portion of the terminal reaches the inner space of the connection opening, it constitutes a connection portion between the tip portion of the terminal and the connecting opening, before Symbol in the state in which deflect the cover pressing against the ribs of the connector, in a state where the connecting portion is exposed from the opening of the cover, prior to the opening of the cover and the rib Contacting the peripheral portion in close contact, the connector, characterized in that entrapment fixed by said cover and the substrate.

  According to the present invention, it is possible to provide a board with a connector that can shorten the manufacturing time, reduce the component cost, reduce the number of connectors and the arrangement, and can be integrated.

The board | substrate with a connector used as one Embodiment of this invention is demonstrated in detail using drawing.
1 is an exploded perspective view of a board A with a connector according to the present embodiment, FIG. 2 is a top view of the board A with a connector, and FIG. 3 is a cross-sectional view taken along line AA in FIG.
As shown in FIGS. 1 to 3, the board A with a connector includes a board 1, a plurality of connectors 7 arranged on the board 1, a mounting component 5, and an upper case 3 as an example of a cover according to the present invention. And a lower case 4.
The board A with connector includes an upper case 3 having an opening 3a for exposing the connection parts 7a of the plurality of connectors 7 and covering the board 1 from the connector 7 side, and a lower case 4 covering the board 1 from the opposite side. ing.
As shown in FIG. 3, the upper case 3 and the lower case 4 are connected and fixed to each other by a lock mechanism.
In the board A with connector, the connector 7 is sandwiched and fixed between the board 1 and the upper case 3 with the connecting portion 7a exposed from the upper case 3, as shown in FIG.

Each part of the board | substrate A with a connector is demonstrated in detail.
4A to 4C are diagrams showing a part of the board 1, the connector 7, and the mounting component 5 of the connector-attached board A, where (a) is a perspective view, (b) is a cross-sectional view, c) is a top view.
As shown in FIGS. 4A to 4C, the connector 7 is arranged on the substrate 1, and the mounting components 5 are arranged in an integrated state around the connector 7.
The substrate 1 is a known circuit substrate such as a glass epoxy substrate or a metal core substrate having circuit patterns formed on both sides. The board 1 is appropriately formed with a positioning hole 1a (see FIG. 3) for positioning the connector 7 at a planned mounting location 8 of the connector 7 and a through hole (not shown) for inserting and fixing a terminal 6 described later. Yes.
As shown in FIG. 4B, the connector 7 includes a resin connector housing 2 and metal terminals 6 press-fitted and fixed to the connector housing 2.

The connector housing 2 includes a leg 2b that can stand on the board 1, a connection opening 2a disposed on the leg 2b, and a press-fit fixing formed between the connection opening 2a and the leg 2b. Part 2c.
The connection opening 2a is formed in a frame shape that opens upward in the vertical direction with respect to the substrate surface of the substrate 1, and the leg portion 2b is formed in a frame shape that opens in the lower direction in the vertical direction with respect to the substrate surface of the substrate 1. Yes. Two or more positioning projections 2h for positioning the connector 7 on the board 1 are formed at the lower part of the leg 2b.
The press-fit fixing portion 2c serves as a partition wall that partitions the internal space between the connection opening 2a and the leg 2b, and communicates with the internal space of each of the connection opening 2a and the leg 2b so that the terminal 6 can be press-fitted and fixed. The press-fitting hole 2d is provided.
As can be seen from FIGS. 4A to 4C, the peripheral wall 2f of the connection opening 2a has a portion formed to protrude from the peripheral wall 2g of the leg 2b. It is arranged in a state where a part thereof is located in an empty space that is adjacent to the leg portion 2b side by side under the opening 2a. Here, the connector 7 and the mounting component 5 are not in direct contact.
Ribs 2e are formed on the peripheral wall 2f of the connection opening 2a. As shown in FIG. 3, the rib 2 e is formed at a position overlapping the peripheral edge of the opening 3 a of the upper case 3 in the direction perpendicular to the substrate surface of the substrate 1. The rib 2e is formed so as to be substantially in contact with the peripheral edge of the opening 3a of the upper case 3.

The terminal 6 is press-fitted and fixed in a press-fitting hole 2d formed in the press-fitting fixing part 2c so as to communicate with the internal space of the connection opening 2a and the leg 2b. Further, the terminal 6 is inserted into a through hole (not shown) of the substrate 1 and fixed by soldering in the same manner as the mounting component 5 at a portion protruding from the substrate 1 to the back surface.
A connecting portion 7 a of the connector 7 is formed by the tip portion of the terminal 6 extending above the substrate 1 and the opening connecting portion 2 a of the connector housing 2.

The mounting component 5 is various components mounted on the substrate 1. For example, a relay is shown here, but the bus bar, capacitor, resistor, and the like are not particularly limited.
As shown in FIG. 1, the upper case 3 is a cover that covers the entire top surface of the substrate 1, so that the connection portions 7 a of the connector 7 are exposed to the upper surface side of the upper case 3. While having the opening 3a formed independently, it has the latching convex part 3x which carries out lock fixation with respect to the lower case 4. As shown in FIG. As shown in FIG. 1, the protrusion length of the connecting portion 7a of the connector 7 can be adjusted by appropriately changing the height of the upper surface of the upper case 3 and forming the opening 3a at each location. .
The lower case 4 is a cover that covers the entire lower surface of the substrate 1, and has a locking projection 4 x of the upper case 3 and a locking recess 4 x that forms a pair of locking mechanisms.

Next, the manufacturing method of the board | substrate A with a connector is demonstrated.
First, the terminal 6 is press-fitted and fixed in the press-fitting hole 2 d of the press-fitting fixing portion 2 c of the connector housing 2, thereby forming a connector 7.
Next, the mounting component 5 is disposed on the substrate 1, and the connector 7 is disposed on the substrate 1 (the mounting component 5 is disposed first because there is a portion that enters the lower side of the connector 7). At this time, the positioning projection 2h of the connector housing is fitted into the positioning hole 1a on the substrate 1 to prevent displacement. The terminal 6 of the connector 7 is inserted into the through hole.
In this state, the flow soldering process is performed, and the terminals 6 are fixed by soldering to the substrate 1, so that the connectors 7 and the substrate of the mounting component 5 are mounted as shown in FIGS. 4 (a) to 4 (c). 1 is positioned and fixed.
Next, the upper side of the substrate 1 to which the mounting component 5 and the connector 7 are fixed in this way is covered with the upper case 3. At this time, each of the connection portions 7a of the plurality of connectors 7 is exposed from the openings 3a formed independently. The lower side of the substrate 1 is covered with the lower case 4.
And the latching convex part 3x of the upper case 3 and the latching recessed part 4x of the lower case 4 are latched, and it completes as the board | substrate A with a connector.

The first characteristic of the above-described board A with connector is that the plurality of connectors 7 on the board 1 are not screwed to the board 1 but are soldered between the board 1 and the terminals 6 and sandwiched between the board 1 and the upper case 3. It is only fixed.
The connector 7 is positioned by fitting the positioning projection 2h of the leg 2b of the connector housing 2 into the positioning hole 1a of the board 1 and fitting the connecting portion 7a with the opening 3a.
In this structure, when the connection portion 7a of the connector 7 is connected to another connector (not shown), the connection pressure is received by the connection portion between the leg portion 2b of the connector housing 2 and the board 1, and conversely When another connector (not shown) is removed from the connecting portion 7a of the connector 7, the pressure is received by the connecting portion between the rib 2e of the connector housing 2 and the upper case 3, and in either case, the terminal 6 and the board No extra force is applied to the soldering part with 1.
By adopting such a structure, first, the screwing operation of the board 1 and the connector 7 can be abolished. As a result, the manufacturing time can be shortened, and the cost can be reduced by reducing the number of parts.
As can be seen from FIGS. 1 and 2, the connection portion 7 a of the connector 7 is directed vertically upward with respect to the substrate surface of the substrate 1, so that not only the peripheral portion of the substrate 1 but also the central portion or the vicinity thereof. Since the connectors 7 can be arranged, the number of connectors 7 that can be arranged on one substrate 1 and the degree of freedom of arrangement can be secured.
In addition, since several terminals 6 are held for each connector 7 and the plurality of connectors 7 are configured independently of each other, the positioning accuracy of the terminals 6 with respect to the substrate 1 can be easily obtained, and based on environmental temperature changes. It is also preferable that the soldered portion of the terminal 6 is not easily damaged by expansion and contraction.
Further, if the connector 7 is standardized in some predetermined shapes, there is an advantage that the board A with connector can be easily manufactured by arbitrarily laying them out on the board 1.
The various effects as described above are exhibited to the maximum when all the connectors 7 on the substrate 1 are fixed by one upper case 3.

The next characteristic of the above-mentioned board A with connector is that the mounting component 5 is arranged on the board 1 adjacent to the connector 7, and a part of the mounting part 5 is below the connection portion 7 a of the connector 7. It is arrange | positioned in the state located in the side.
Conventionally, since the connecting portion 7a of the connector 7 tends to be larger than the leg portion 2b side, the space below the connecting portion 7a has been wasted. On the other hand, in the present embodiment, by adopting the configuration as described above, the mounting component 5 and the connector 7 can be integrated, and the board A with connector can be reduced in size.

Further, the above-described board A with connector is characterized in that the peripheral wall 2f or 2g of the connector housing 2 overlaps with the peripheral edge of the opening 3a of the upper case 3 in the direction perpendicular to the board surface of the board 1. In addition, the rib 2e is formed.
According to such a structure, as described above, when another connector (not shown) is removed from the connecting portion 7a of the connector 7, the pressure is received by the connecting portion between the rib 2e of the connector housing 2 and the upper case 3. This is preferable because an extra force is not applied to the soldered portion between the terminal 6 and the substrate 1.

Further, the above-described board A with connector is more characteristic in that it has a positioning hole 1a on the board 1, a positioning protrusion 2h is formed on the leg 2b of the connector 7, and the positioning protrusion 2h is formed in the positioning hole 1a. It is inserted.
Such a structure is preferable because the connector 7 is positioned on the substrate 1 and the connector 7 is prevented from being displaced when the connector 7 is soldered to the substrate 1.

In addition, the board | substrate with a connector of this invention is not limited to embodiment mentioned above, It can take a various aspect.
For example, although the upper case 3 is fixed using the lower case 4 in the above-described embodiment, the upper case 3 can be directly fixed to the substrate. It is also possible to use a plurality of upper cases 3.
Although the connector 7 has shown the example which connects another connector here, components, such as a fuse and a relay, may be fixed, for example.
The opening 3a of the upper case 3 is preferably provided independently for each connector 7 in order to ensure that the connector 7 is sandwiched between the substrate 1 and the upper case 3; By doing so, it is also possible to have a structure in which one opening 3a is provided for a plurality of connectors 7.
In addition, the upper case 3 can be bent and pressed against the connector 7 to bring the rib 2e and the peripheral edge of the case opening 3a into close contact with each other. In this case, the connector 7 is stably held. preferable.

  As described above, according to the present invention, it is possible to provide a board with a connector that can shorten the manufacturing time, reduce the component cost, and reduce the number of connectors and the restriction on the arrangement.

It is a disassembled perspective view of the board | substrate with a connector used as one Embodiment of this invention. It is a top view of the board | substrate with a connector of FIG. It is a partial cross section side view of the board | substrate with a connector cut | disconnected by the AA line of FIG. It is drawing which shows a part of a board | substrate, a connector, and mounting components among the board | substrates with a connector of FIG. 1, (a) is a perspective view, (b) is a cross-sectional side view, (c) is a top view. It is a partial top view of the board | substrate used with the board | substrate with a connector of FIG.

A board with connector 1 board 1a positioning hole 2 connector housing 2a connection opening 2b leg 2c press-fit fixing part 2d press-fit hole 2e rib 2f peripheral wall part 2g (of connection opening part) peripheral wall part 2h positioning protrusion 3 upper Case 3a Opening 4 Lower case 5 Mounting component 6 Terminal 7 Connector 7a Connection 8 Location to be mounted

Claims (1)

A substrate,
A board with a connector, comprising a terminal fixed to the board and a connector housing, and having a plurality of connectors arranged on the board,
A cover having an opening that exposes a portion of each of the plurality of connectors;
On the board, the mounting components are arranged side by side adjacent to the connector,
The connector housing is formed with a connection opening that is open on the upper side perpendicular to the board surface, and a leg that is provided below the connection opening and opened on the lower side perpendicular to the board surface,
On the lower outer periphery of the peripheral wall portion of the connection opening,
A position above the mounting component, and
A position overlapping in contact from below with respect to the peripheral edge of the opening in front Symbol cover, to form a rib,
On the substrate, a part of the mounting component is disposed in a state positioned below the rib of the connector,
A positioning hole is formed on the substrate, and a protrusion protruding downward is formed at a lower portion of the leg portion of the connector,
The connector is fixed on the board by inserting the projection into the positioning hole in a state where the leg portion stands on the board,
The terminal protrudes in an internal space of the connector housing from the board vertically upward with respect to the board surface so as to communicate with the internal space of the leg portion, and a tip portion of the terminal reaches the internal space of the connection opening. Projecting up to
The connection opening portion and the tip end portion of the terminal constitute a connection portion ,
In the state in which deflect the front Symbol cover pressed against the ribs of the connector, in a state where the connecting portion is exposed from the opening of the cover, the peripheral edge of the opening of the cover and the rib And in close contact,
A board with a connector in which the connector is sandwiched and fixed by the board and the cover.

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