JP2010097879A - Mounting structure of connector for base plate - Google Patents

Abstract

A creeping distance between adjacent terminals can be increased, thereby realizing a narrow pitch of a terminal arrangement.
In a mounting structure of a board connector 10 in which a plurality of terminals 13 and 12 are arranged in an upper stage and a lower stage of a connector housing 11, respectively, soldering portions of rear legs of terminals on a circuit board 1 are provided. The convex portions 3 and the concave portions 2 are alternately arranged along the terminal arrangement direction, and the rear leg portions 13b and 12b of the upper and lower terminals are staggered so as to correspond to the positions of the upper surface of the convex portion and the upper surface of the concave portion. The rear legs of the upper terminals were soldered to the upper surfaces of the convex portions, and the rear legs of the lower terminals were soldered to the upper surfaces of the concave portions.
[Selection] Figure 1

Description

  The present invention relates to a board connector mounting structure.

For example, Patent Document 1 discloses a board connector in which a plurality of terminals are arranged in an upper stage and a lower stage of a connector housing. This type of board connector is mounted on the circuit board by soldering the rear leg portions of the terminals protruding rearward from the rear wall of the connector housing onto the circuit board. Usually, since the upper surface of the circuit board is flat, the rear leg portions of the upper and lower terminals of the board connector are arranged so as to be aligned on the same plane.
JP-A-10-214664

  By the way, when rear legs of upper and lower terminals are arranged on the same plane, there is a problem in that it is difficult to narrow the terminal arrangement because the creepage distance between adjacent terminals is shortened.

  In view of the above circumstances, an object of the present invention is to provide a board connector mounting structure that can increase the creepage distance between adjacent terminals, thereby realizing a narrow pitch of the terminal arrangement. And

  According to the first aspect of the present invention, the rear leg portions of the terminals projecting rearward from the rear wall of the connector housing of the board connector in which a plurality of terminals are arranged in the upper and lower stages of the connector housing are soldered to the circuit board. Thus, in the board connector mounting structure in which the board connector is mounted on the circuit board, the position where the rear legs of the terminals on the circuit board are soldered is arranged along the arrangement direction of the terminals. The convex portions and the concave portions are alternately arranged, and the rear leg portions of the upper and lower terminals are alternately arranged in a staggered manner so as to correspond to the positions of the upper surface of the convex portion and the upper surface of the concave portion, The rear leg portion of the upper terminal is soldered to the upper surface of the lower terminal, and the rear leg portion of the lower terminal is soldered to the upper surface of each recess.

  The invention according to claim 2 is the board connector mounting structure according to claim 1, wherein the electrical contact portions of the upper and lower terminals are alternately arranged in a staggered manner inside the hood portion of the connector housing. The rear leg portion of each terminal extends linearly from the electrical contact portion.

  According to a third aspect of the present invention, there is provided the board connector mounting structure according to the first aspect, wherein the electrical contact portions of the upper and lower terminals are aligned in the lateral direction inside the hood portion of the connector housing. The rear legs of the upper and lower terminals are arranged in a staggered manner by providing a bent portion in the middle from the electrical contact portion to the rear leg of the terminals of at least one of the upper and lower terminals. It is arranged in order.

  According to the invention of claim 1, convex portions and concave portions are alternately arranged on the circuit board, and the rear leg portions of the upper and lower terminals are staggered so as to correspond to the positions of the upper surfaces of the convex portions and the upper surfaces of the concave portions. Since the rear legs of the upper terminals are soldered to the upper surfaces of the convex portions and the rear legs of the lower terminals are soldered to the upper surfaces of the concave portions, the creepage distance between adjacent terminals is increased. The step difference between the convex portion and the concave portion can be made larger than in the case of normal surface mounting. Therefore, the pitch of the terminal arrangement can be reduced.

  According to the second aspect of the present invention, since each terminal is formed in a straight line from the electrical contact portion to the rear leg portion, it can be manufactured at a low cost because the shape of the terminal is simple.

  According to the invention of claim 3, since the horizontal positions of the electrical contact portions of the upper and lower terminals are aligned, the terminal arrangement in the hood portion of the connector can be simplified.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  1A is a cross-sectional view of the mounting structure of the board connector of the embodiment, FIG. 1B is a perspective view schematically showing the configuration of the circuit board side, and FIG. 2A is a front view of the board connector. FIG. 2B is a rear view.

  The board connector 10 includes a plurality of terminals (male terminals in this example) 13 and 12 arranged on the upper and lower stages of a connector housing 11 made of synthetic resin, and is connected to a mating terminal (female terminal). The electrical contact portions 13 a and 12 a of the terminals 13 and 12 on the lower stage are alternately arranged in a staggered manner in the hood portion 11 a of the connector housing 11.

  Further, the rear leg portions 13 b and 12 b of the terminals 13 and 12 extend linearly from the electrical contact portions 13 a and 12 a and protrude rearward from the rear wall of the connector housing 11.

  On the other hand, at the place where the rear legs 13b, 12b of the terminals 13, 12 on the circuit board 1 on which the board connector 10 is mounted, the convex portions 3 and the concave portions along the arrangement direction of the terminals 13, 12 are provided. 2 are arranged alternately. In this case, the rear legs 13 b and 12 b of the upper and lower terminals 13 and 12 are arranged in a staggered manner so as to correspond to the positions of the upper surface of the convex portion 3 and the upper surface of the concave portion 2 of the circuit board 1.

  Then, the rear leg portion 13b of the upper terminal 13 is soldered to the upper surface of each convex portion 13, and the rear leg portion 12b of the lower terminal 12 is soldered to the upper surface of each concave portion 2, so that the board connector 10 is It is mounted on the circuit board 1.

  When mounted in this way, the creeping distance between the adjacent terminals 13 and 12 can be made larger by the step between the convex portion 3 and the concave portion 2 than in the case of normal surface mounting. Therefore, the pitch of the terminal arrangement can be reduced. In the case of this embodiment, since the terminals 13 and 12 are linearly formed from the electrical contact portions 13a and 12a to the rear leg portions 13b and 12b, the shape of the terminals 13 and 12 is simple and inexpensive. Can be produced.

  As shown in FIG. 3 (a), the electrical contact portions 13a and 12a of the upper and lower terminals 13 and 12 are arranged in the hood portion 11a of the connector housing 11 so as to be aligned in the horizontal direction. By providing a bent portion in the middle from the electrical contact portion 13a to the rear leg portion 13b of the terminal 13 of at least one of the lower terminals 13 and 12, as shown in FIG. 3B, the upper and lower terminals The rear legs 13b and 12b of the 13 and 12 may be arranged in a staggered manner. In this way, the terminal arrangement in the hood portion 11a of the connector 10 can be simplified.

  In any case, if the rear legs 13b, 12b of the upper and lower terminals 13, 12 are alternately arranged in a zigzag pattern, soldering can be performed on the upper surfaces of the protrusions 3 and the recesses 2 on the circuit board 1. it can.

  By the way, in order to solder the rear leg portions 13b and 12b of the terminals 13 and 12 to the upper surfaces of the convex portion 3 and the concave portion 2, it is necessary to form conductor pattern lands on the upper surfaces of the convex portion 3 and the concave portion 2. There is.

  For example, as shown in FIGS. 4 and 5, two circuit boards 1 </ b> A and 1 </ b> B having conductor patterns 4 and 5 formed on the surface are laminated to form one circuit board 1. The conductive pattern 4 of the lower substrate 1A is exposed from the comb-shaped notch 7 provided at the edge of the substrate 1B, the portion with the notch 7 is defined as the recess 2, and the portion without the notch 7 is defined as the projection 3. Constitute. By doing so, the lands of the conductor patterns 5 and 4 can be arranged on the upper surface of the convex portion 3 and the upper surface of the concave portion 2.

(A) is sectional drawing of the mounting structure of the connector for board | substrates of embodiment of this invention, (b) is a perspective view which shows the outline of a structure by the side of a circuit board. (A) is a front view of the board connector, and (b) is a rear view. It is a figure which shows another example of the connector for substrates, (a) is a front view, (b) is a rear view. It is a perspective view which shows the structural example of the convex part and recessed part of the said circuit board. (A) is a top view of the part of FIG. 4, (b) is a Vb-Vb arrow line view of (a).

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Circuit board 2 Concave part 3 Convex part 10 Board connector 11 Connector housing 11a Hood part 12 Lower terminal 12a Electrical contact part 12b Rear leg part 13 Upper stage terminal 13a Electrical contact part 13b Rear leg part

Claims (3)

By soldering a rear leg portion of each terminal projecting rearward from a rear wall of the connector housing of the board connector in which a plurality of terminals are respectively arranged in an upper stage and a lower stage of the connector housing to the circuit board, In the board connector mounting structure in which the connector is mounted on the circuit board,
In locations where the rear leg portions of the terminals on the circuit board are soldered, the convex portions and the concave portions are alternately arranged along the arrangement direction of the terminals, and the rear leg portions of the upper and lower terminals are arranged, Arranged alternately in a zigzag pattern so as to correspond to the positions of the upper surface of the convex portion and the upper surface of the concave portion, solder the rear leg portion of the upper terminal to the upper surface of each convex portion, and the lower step to the upper surface of each concave portion. A mounting structure for a connector for a board, wherein the rear legs of the terminals are soldered. The board connector mounting structure according to claim 1,
The electrical contact portions of the upper and lower terminals are alternately arranged in a staggered manner inside the hood portion of the connector housing, and the rear leg portions of the terminals extend linearly from the electrical contact portions, respectively. The board connector mounting structure characterized by the above. The board connector mounting structure according to claim 1,
Electrical contact portions of the upper and lower terminals are arranged in the hood portion of the connector housing so as to be aligned in the horizontal direction, and are rearward from the electrical contact portions of the terminals of at least one of the upper and lower terminals. A mounting structure for a connector for a board, wherein a bent portion is provided in the middle of the leg portion so that rear leg portions of the upper and lower terminals are arranged in a staggered manner.

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