JPS6328619Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) This invention relates to a structure for mounting electrical parts such as switches and connectors to a board such as a printed circuit board using terminals. be.

(Prior Art) Conventional electrical components of this type include a flat connector 1 as shown in FIGS. 1 and 2. This flat connector 1 includes a flat plug 2 and a flat socket 3. This flat plug 2 has an insulating plate 4 and a plurality of plug pins P ₁ to _{P o} .
P ₁ to P _o are arranged in parallel in the longitudinal direction of the insulating plate 4 at equal pitches. Moreover, each of the plug pins P ₁ to _{P o} penetrates the insulating plate 4 and protrudes from the plate contact surface _4a as shown in FIG.
~P _o and integrated terminal A ₁ ~ _{A o} . Also,
End walls 5, 5' are integrally provided at both longitudinal ends of the insulating plate 4, and window holes 6, 6' for locking the protrusions are bored in the end walls 5, 5'. .

The flat socket 3 also has a socket body 7 and a contact 9 attached to the end of the electric wire 8. And plug pin P ₁ is attached to the socket body 7.
The same number of contact holes C ₁ -C _o as -P _o are arranged in parallel in the longitudinal direction, and a contact 9 is fitted into each of the contact holes C ₁ -C _o , respectively. 10,1
0' is a locking projection protruding from the longitudinal end surface of the socket body 7.

Connect the above-mentioned plug pins P ₁ to _{P o} to each contact hole.
_The flat plug ₂ and flat socket 3 are integrally coupled. In this state, each plug pin P ₁ to _{P o} connects to the contact piece 9 of the contact 9 in each contact hole C ₁ to _{C o} .
It is designed to be held between a and 9b.

Furthermore, in the figure, 11 is a printed circuit board (board body). A plurality of terminal insertion holes H ₁ to _{H o} are bored at equal pitches in this printed circuit board 11, and the above-mentioned flat connector 1 is inserted into each terminal insertion hole H ₁ to _{H o} .
Terminals A ₁ to A _o are inserted as shown in FIG.
Of the terminals A ₁ to _{A o} , each of the three terminals on both end sides has locking portions B ₁ , B ₂ , B ₃ , and B _o that are bent and come into elastic contact with the copper foil 12 on the back surface 11 a of the printed circuit board 11 . _-2 ,
B _o-1 and B _o are respectively formed. These locking parts B ₁ , B ₂ , B ₃ , B _o-2 , B _o-1 , and B _o prevent the plug pins P ₁ to _{P o} from coming out from the terminal insertion holes H ₁ to H _o . ing.

(Problems with the prior art) However, such a conventional flat plug 1
When attaching to the printed circuit board 11, the insulating plate 4
from the plate contact surface 4a to each locking portion B ₁ , B ₂ , B ₃ ,
The distance to B _o-2 , B _o-1 , and B _o is the printed circuit board 1
Since it was set the same according to the plate thickness T of 1,
When the plate thickness T is changed, the locking parts B ₁ , B ₂ , B ₃ ,
The locations of B _o-2 , B _o-1 , and B _o also had to be changed. Therefore, conventionally, the locking part
Several types of flat connectors 1 with different positions of B ₁ , B ₂ , B ₃ , B _o-2 , B _o-1 , and B _o are prepared in advance, and the connectors 1 are arranged according to the board thickness T of the printed circuit board 11. Select the flat connector 1 provided with the locking portions B ₁ , B ₂ , B ₃ , B _o-2 , B _o-1 , and _Bo at the positions, and attach the selected flat connector 1 to the printed circuit board 11 was. For this reason, this was not very desirable in terms of parts management and manufacturing of the flat connector 1.

(Means for solving the problem) In view of these problems, this invention involves inserting a plurality of terminals into a plurality of holes in a plate, and also inserting a plurality of terminals into two or more of the plurality of terminals. An electrical component that is attached to a plate by having a locking part provided on the plate elastically contact the back side of the plate, characterized in that at least two types of terminals with different positions of the locking part are provided. .

(Example) This invention will be explained below based on the drawings.

Note that the same parts as those shown in FIGS. 1 and 2 are given the same reference numerals, and the explanation thereof will be omitted.

In Figures 3 to 5, the terminals on both end sides of the plurality of terminals A ₁ to _{A o} arranged in parallel in a substantially straight line
A ₁ , A ₂ , A ₃ , A _o-2 , A _o-1 , A _o have bent locking parts B ₁ ′, B ₂ ′, B ₃ ′, B _o-2 ′ ，
B _o-1 ′ and B _o ′ are provided, respectively. and,
From the plate contact surface 4a of the insulating plate 4 to the locking portion B _o ′,
The distances to B _o-1 ′ and B _o-2 ′ are set to increase successively. Further, the distances from the plate contact surface 4a of the insulating plate 4 to the locking portions B ₂ ′, B ₁ ′, and B ₃ ′ are also set to be larger in order. In this way, multiple terminals A ₁
~A _o , to the three terminals on each end side,
Locking parts B ₁ ′, B ₂ ′, B ₃ ′, B o-2 ′, B _{o- 1} ′, B _o ′ that come into contact with the back surface 11a of the printed circuit board 11 which is a plate body
are provided at different distances from the plate contact surface 4a. Moreover, the locking portions B ₁ ′, B ₂ ′,
B ₃ ′ is bent in the opposite direction to the locking portions B _o-2 ′, B _o-1 ′, and B _o ′.

Further, the thickness T ₁ of the printed circuit board 11 in FIG. 3 is thinner than the thickness T ₂ of the printed circuit board 11 in FIG.
The thickness T ₂ of the printed circuit board 11 shown in FIG. 4 is thinner than the thickness T ₃ of the printed circuit board 11 shown in FIG. Then, from the plate contact surface 4a of the insulating plate 4, the locking portion B ₂ ′,
The distance to B _o ′ corresponds to the plate thickness T ₁ , and the distance from the plate contact surface 4a of the insulating plate 4 to the locking portions B ₁ ′ and B _o-1 ′ corresponds to the plate thickness T ₂ , The distance from the plate contact surface 4a of the insulating plate 4 to the locking portions B ₃ ′ and B _o-2 ′ corresponds to the plate thickness T ₃ . In the figure, t ₁ is from the locking part B _o ′ to the locking part
Distance from B _o-1 ′, t ₂ is from locking part B _o-1 ′ to locking part
This is the distance to B _o-2 ′.

Next, the function of the structure for mounting electrical components having such a configuration will be explained.

Depending on the usage conditions, a printed circuit board 11 with a thin board thickness T ₁ as shown in FIG. 3 is selected, and this printed circuit board 11 is
When attaching the flat connector 1 to the PCB 1, the terminals A ₁ to A _o of the flat connector 1 are inserted into the terminal insertion holes H ₁ to H _o of the printed circuit board 11, respectively. At this time,
Locking parts B ₁ ′, B ₂ ′, B ₃ ′, B _o-2 ′, B _o-1 ′, and B _o ′ are terminal insertion holes H ₁ , H ₂ , H ₃ , H _o-2 , and H _{o -1} , H _o , and the terminals A ₁ , A ₂ , A ₃ , A _o-2 , A _o-1 , A _o are connected to the locking parts B ₁ ′, B ₂ ′, B ₃ ′, B _{o -2} ′, B _o-1 ′, and B _o ′ are bent in the opposite direction. The locking parts B ₁ ′, B ₂ ′, B ₃ ′, B _o-2 ′, B _o-1 ′, B _o ′ are connected to the terminal insertion holes H ₁ , H ₂ , H ₃ , H _o-2 , H _o-1 , H _o protrude toward the back surface 11a side of the printed circuit board 11, each terminal A ₁ , A ₂ , A ₃ , A _o-2 , A _o-1 , A _o becomes elastic due to its own elastic force. be restored to its original state.

Here, the printed circuit board 11 is placed on the plate contact surface 4a.
The locking portions B ₂ ′ and B _o ′ come into elastic contact with the copper foils 12 and 12 on the back surface 11a in opposite directions (left and right), and as a result, each terminal A ₁ to
A _o is prevented from slipping out from the terminal insertion holes H ₁ to H _o , and the terminals A ₁ to _{A o} and the terminal insertion holes H ₁ to
The play between H _o and flat connector 1 has been removed.
is attached to the printed circuit board 11.

In addition, the above-mentioned locking parts B ₁ ′, B ₂ ′, B ₃ ′, B _o-2 ′,
The width of B _o-1 ′, B _o ′ in the bending direction is the terminal insertion hole H ₁ ,
It is set slightly larger than H ₂ , H ₃ , H _o-2 , H _o-1 , and H _o .

Also, depending on the usage conditions, the flat connector 1 may be attached to the printed circuit board 11 with a board thickness of T ₂ as shown in FIG. 4 as described above.
, the locking parts B ₂ ′ and B _o ′ are pressed against the inner surfaces of the terminal insertion holes H ₂ and H _o , and
The locking portions B ₁ ′ and B _o-1 ′ come into elastic contact with the copper foil 12 on the back surface 11a to prevent the terminals A ₁ to A _o from coming out of the terminal insertion holes H ₁ to _Ho .

Furthermore, depending on the usage conditions, the flat connector 1 is attached as described above to the printed circuit board 11 having a board thickness of T ₃ as shown in FIG.
When attached, the locking parts B ₁ ′, B ₂ ′, B _o-1 ′,
B _o ′ is pressed against the inner surface of the terminal insertion holes H ₁ , H ₂ , H _o-1 , and H _o , and the locking parts B ₃ ′ and B _o-2 ′ are connected to the back surface 1.
The terminals A ₁ -A _o are prevented from coming out of the terminal insertion holes H ₁ -H _o by coming into elastic contact with the copper foil 12 of 1a.

In addition, in the present invention, terminals with locking portions provided at the same position are arranged near both ends of a plurality of terminals arranged in a substantially straight line, with the locking portions bent in opposite directions. In the case of a structure for mounting electrical components, the locking portions near both ends come into elastic contact with the back side of the plate, and the gap between the locking portions near both ends and the back side of the plate Since biasing forces acting in opposite directions act on the terminals, it is possible to reliably remove play between the terminal and the terminal insertion hole, and as a result, the electrical component can be attached to the printed circuit board without play.

(Effects) As explained above, this invention allows multiple terminals to be inserted into multiple holes in the plate, and
In an electrical component that is attached to a plate by bringing the locking parts provided on two or more of the plurality of terminals into elastic contact with the back side of the plate, there are at least two different positions of the locking parts. Since the structure is designed for mounting electrical parts with various types of terminals, it is possible to
There is no need to prepare in advance several types of electrical components with terminal locking parts in different positions; you can simply prepare one type of electrical component and use it on several types of printed circuit boards with different board thicknesses. It can be adapted (attached) to plates such as As a result, when installing parts, there is no need to mix up the parts to be installed depending on the board thickness, which simplifies process control. By using only one type of parts, rational inventory management is possible. Since production becomes possible, it also has the effect of reducing costs.

[Brief explanation of the drawing]

Fig. 1 is an exploded perspective view showing the relationship between a conventional flat connector and a printed circuit board, Fig. 2 is a sectional view of main parts showing the attachment state of the flat plug of the flat connector shown in Fig. 1 and a printed circuit board, 3 to 5 are sectional views of essential parts showing the state in which a flat connector equipped with the mounting structure according to this invention is attached to a printed circuit board. 1... Flat connector (electrical component), 4... Board contact surface, 11... Printed circuit board (board), 11a
... Back side, A ₁ ~ A _o ... Terminal, B ₁ , B ₂ , B ₃ ,
B _o-2 , B _o-1 , B _o ...Locking part, B ₁ ′, B ₂ ′, B ₃ ′,
B _o-2 ′, B _o-1 ′, B _o ′...Locking part, H ₁ ~ _Ho ... Terminal insertion hole, T, T ₁ , T ₂ , T ₃ ... Plate thickness, t ₁ , _t2 ...
…distance.

Claims (1)

[Claims for Utility Model Registration] (1) A plurality of terminals are inserted into a plurality of holes in a plate, and a locking portion provided on two or more of the plurality of terminals is inserted into the plate. An electrical component mounting structure, characterized in that the electrical component is attached to the plate body by making elastic contact with the back side of the body, characterized in that at least two types of terminals having the locking portions in different positions are provided. . (2) Terminals with locking portions provided at the same position are arranged near both ends of a plurality of terminals arranged in a substantially straight line, with the locking portions being bent in opposite directions. A structure for mounting an electrical component according to claim 1 of the utility model registration claim, characterized in that: