JP2008198890A - Connection structure of electric board - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve problems that the number of parts and the number of processes increase and an electric board is not quickly connected since different parts and soldering are required. <P>SOLUTION: An opening slot 26a for inserting the projected end 10b of a first electric board is formed on a second electric board, first connection terminal groups 12 are formed on both surfaces on the board plane at the projected end of the first electric board through the end face 10b' of the projected end, and second connection terminal groups 22 are formed on both surfaces on the board plane through the opposing inner peripheral surface of the opening slot of the second electric board, respectively. A notched slot 24 is formed behind the opening slot 26a, and an energizing part is provided between the opening slot and the notched slot. When the projected end 10b of the first electric board is inserted into the opening slot 26a of the second electric board, an energizing part 27 energizes the first connection terminal group 12 and makes it abut on the second connection terminal group 22, the first electric board is held by elasticity and the first and the second electric boards are connected. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an electrical board connection structure for connecting electrical boards that intersect each other.

  Conventionally, an electric board on which a pattern is printed is mounted on a circuit device of an electric device, and two electrical boards are three-dimensionally combined according to the structure of the circuit device, and the connection terminals on the electric board are electrically connected. Has been.

As a connection structure of two electric boards, for example, in Japanese Patent Application Laid-Open No. 2001-266977, a fixing pin of an elastic fixture made of a metal spring material is fitted into a fitting hole of one electric board, and the elasticity of the connector is A configuration is described in which the other electric substrate is sandwiched by one piece. Japanese Patent Application Laid-Open No. 2003-234547 describes a configuration in which a connector is soldered to a connection portion of an electric board, and a pair of slits are formed in the connection portion with the connection portion sandwiched from both sides.
JP 2001-266977 A JP 2003-234547 A

In the known configuration, a separate part is required to connect two electrical parts (for example, an elastic fixing device of Japanese Patent Laid-Open No. 2001-266977, a connector of Japanese Patent Laid-Open No. 2003-234547), or soldering. Is required (for example, soldering of a connector to a connecting portion of JP-A-2001-266977). For this reason, the number of parts and the number of processes increase, and the electrical board cannot be connected quickly.
An object of the present invention is to provide an electrical board connection structure for connecting electrical boards without increasing the number of parts and the number of processes.

  According to the first aspect of the present invention, an electrical board connection structure includes: a first electrical board having a first connection terminal group provided on a board plane; and intersecting the first electrical board. A second connection terminal group formed in the substrate thickness direction of the substrate end face to abut against the first connection terminal group, and the second connection terminal group is biased with respect to the first connection terminal group And a second electric substrate having an urging portion to be brought into contact with.

  According to the first aspect of the present invention, since the urging portion is provided on the second electric substrate, the urging portion of the second electric substrate is connected when the first electric substrate is connected to the second electric substrate. The first connection terminal group is brought into contact with the second connection terminal group by the biasing of the first and second connection terminal groups, and the first and second connection terminal groups are electrically connected. A first electrical board is held. Therefore, it is possible to quickly connect the electric boards without increasing the number of parts and the number of processes.

  For example, an opening slot into which the protruding end of the first electric board is inserted is formed in the second electric board, and the first connection terminal group is on the board plane at the protruding end of the first electric board, The second connection terminal group is formed on the inner peripheral surface of the opening slot of the second electric substrate. By forming the notch slot behind the opening slot and adjacent to the opening slot, a biasing site is provided between the opening slot and the notch slot.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. 1 and 2 are perspective views before and after connecting the first and second electric boards in the electric board connecting structure according to one embodiment of the present invention, and FIG. 3 is a plan view of the second electric board. Show.
As shown in FIGS. 1 and 2, the electrical board connection structure 1 includes a first electrical board 10 and a second electrical board 20, and the first electrical board 10 includes a first connection terminal group 12. The second electric board 20 has a second connection terminal group 22.

  The first electric substrate 10 integrally includes a substrate body 10a and a substantially rectangular protruding end (connecting portion) 10b protruding from the substrate body via a stepped portion. As shown in FIG. The connection terminal group 12 includes a plurality of connection terminals 12a. Each connection terminal 12a extends in the direction of the board body 10a on both sides of the board of the connection section across the end face 10b 'of the connection section 10b, and the tip of the connection terminal 12a is one of the board bodies. To the department. That is, the connection terminal 12a is formed of a copper foil pattern that is continuously connected from one surface of the connection portion 10b to the end surface 10b 'and further connected from the end surface 10b' to the back surface of the connection portion 10b.

  As shown in FIGS. 1 to 3, the second electric substrate 20 has an end face 20a that is one side, and two end faces 20b that are parallel to each other and that are connected at right angles from both ends of the end face 20a so as to sandwich the end face 20a. , 20c. Further, the second electric board 20 has a pair of notch slots 24, an opening slot (inserted slot) 26a, an auxiliary slot 26b, and an end slot 26c. The two notch slots 24 extend from each of the end surfaces 20b and 20c by a predetermined portion of substantially the same amount in parallel to the end surface 20a toward the center of the substrate.

  Further, a long hole formed in the second electric substrate 20 between the end face 20a and the notch slot 24 while maintaining a predetermined distance from the end face 20a parallel to the notch slot 24, in other words, parallel to the end face 20a. An opening slot 26a is provided. Both end portions of the opening slot 26a extend to the vicinity of the end faces 20b and 20c, respectively. A pair of auxiliary slots 26b are provided which are connected from both end faces of the opening slot 26a, and which extend to the vicinity of the notch slot 24 in parallel to the end faces 20b and 20c while maintaining a predetermined distance from the end faces 20b and 20c. It has been.

  Furthermore, it connects from the edge part of a pair of auxiliary | assistant slot 26b, and it forms toward the center part of the 2nd electrical board | substrate 20 in parallel with the notch slot 24, maintaining a predetermined distance, The edge part is notch slot 24. The end slot 26c is provided side by side.

  Accordingly, the opening slot 26a, the auxiliary slot 26b, and the end slot 26c form a series of holes connected to each other. In this way, the pair of portions 27 that are relatively short cantilever portions sandwiched between the end slot 26c and the notch slot 24 are formed on the end surface 20a of the second electric substrate 20 and the open slot 26a. The both ends of the doubly supported beam-like portion 28 as a pressing portion formed between the two are supported.

  The second connection terminal group 22 includes a plurality of connection terminals 22a and is formed in the opening slot 26a. That is, as shown in FIGS. 2 and 3, each connection terminal 22a is formed in the thickness direction by two opposing inner peripheral surfaces 26a ′ in the opening slot 26a, and also on both surfaces of the second electric board. It is formed to extend. In FIG. 3, the connection terminal 22a on the opposite end face 26a 'of the opening slot 26a is emphasized and drawn thicker than it actually is.

4A and 4B show an example of a process of forming the second connection terminal group in the opening slot of the second electric board, and FIG. 5 shows the second electric board along the line AA in FIG. FIG.
For example, the second connection terminals 22 on the two inner peripheral surfaces 26a ′ facing each other in the opening slot 26a are formed as follows. First, as shown in FIG. 4A, the plated surface of the through hole is left on the entire inner peripheral surface 26a ′ of the opening slot 26a, and as shown in FIG. Remove the unnecessary plating surface in the direction. As a result, connection terminals (plating surfaces) are formed in the thickness direction on the two inner peripheral surfaces 26a ′ facing each other in the opening slot 26a.

  The plated surface of the through hole is left not only in the opening slot 26a but also in the auxiliary slot 26b, and the removal processing of the plated surface by irradiation with a laser beam or the like is performed only on the two inner peripheral surfaces 26a ′ opposed to the opening slot 26a. Therefore, as shown in FIG. 5, although the plated surface of the through hole is left on the inner peripheral surface of the left and right auxiliary slots 26b, there is no problem.

  Here, the opening slot 26a of the second electric board 20 has a rectangular shape similar to the cross section of the end face 10b ′ of the connection part 10b of the first electric board, and its width t2 is slightly smaller than the thickness t1 of the connection part 10b. The length L2 is slightly larger than the length L1 of the connection portion 10b (the width of the protruding end portion of the first electric substrate 10) L1. That is, t2 <t1 and L2> L1.

  The connection of the electric boards 10 and 20 by the electric board connecting structure 1 will be described. As shown in FIG. 1, the first connecting portion 10b is positioned above the opening slot 26a of the second electric board 20 as shown in FIG. The electric board 10 is placed on the second electric board 20 substantially orthogonally. The inner peripheral surface of the opening slot 26a is formed orthogonal to the substrate plane, and the first electric substrate 10 is lowered, and the connecting portion 10b is pushed into the opening slot 26a and inserted.

  The electric substrate 20 is a thin plate formed of, for example, an epoxy resin and can be elastically deformed. The first electric board 10 and the second electric board 20 are electrically connected by inserting the connecting portion 10b into the opening slot 26a. At this time, since the thickness t1 of the connecting portion 10b is larger than the slot width t2 of the opening slot 26a, this is forcibly inserted and fitted.

  At this time, the doubly supported beam-like portion 28 is moved outward by the connecting portion 10b, and the groove width of the opening slot 26a is expanded. The cantilevered beam portion 27, which is a region sandwiched between the notch slot 24 and the auxiliary slot 26b, is elastically displaced in the plane direction of the second electric board, while the cantilevered beam portion 28 is The reaction force (restoring force) tries to return to the cantilevered portion 27 side. Therefore, the connection between the second connection terminal group 22 and the first connection terminal group 12 in the opening slot 26a is achieved. Even after this insertion, the electrical connection is continued by the elastic force (pressing force) of the cantilevered portion 27.

6A, 6B, and 6C show connection examples of the first and second electric boards, and FIG. 6A shows a cross section of the first and second electric boards along the line BB in FIG. FIGS. 4B and 4C show the arrangement of the first and second connection terminal groups.
As shown in FIG. 6A, the plating layer 12-3 is left on the end face 10b ′ of the connection portion 10b of the first electric board, and the first connection terminal group 12 is connected to the electric circuit of the first electric board 10. Provided on both surfaces of the substrate on the substrate plane, the connection terminals 12-1 and 12-2 on both surfaces of the first connection terminal group 12 are connected via a plating layer (connection terminal) 12-3 on the end surface of the connection portion 10b. One conducting path is formed on both sides thereof.

  On the other hand, also in the second electric substrate 20, the second connection terminal group 22 is formed in the thickness direction from the plating layers 22-3 and 22-3 ′ remaining on the two inner peripheral surfaces 26a ′ opposed to the opening slot 26a. In addition, it is also formed on both sides of the second electric substrate on the plane. Therefore, also in the second electric board 20, the connection terminals 22-1 and 22-2 on both sides on the biasing portion 27 side are conducted through the plating layer (connection terminal) 22-3 on the side surface of the opening slot. The connection terminals 22-1 ′ and 22-2 ′ on both sides on the side of the doubly-supported beam-like portion (pressing part) 28 are electrically connected through the plating layer (connection terminal) 22-3 ′ on the side surface of the opening slot. In other words, connection paths are formed separately on the cantilevered beam portion 27 side and the both-end supported beam-like portion 28 across the opening slot 26a.

  Therefore, as shown in FIGS. 6B and 6C, for example, if the first connection terminal group 12 and the second connection terminal group 22 are composed of 18 connection terminals A to R, the connection portion When 10b is inserted and held in the opening slot 26a, the connection terminals A to R on both surfaces of the first connection terminal group 12 are connected to the corresponding terminals A to R of the second connection terminal group, The two connection paths of the electrical board portions 27a and 28 are communicated with each other through the connection path of the first electrical terminal.

  For example, with respect to the terminal A, the plating layer 22-1 which is a connection terminal is electrically connected to the plating layer 22-2 via the plating layer 22-3 that is continuously connected, and the plating layer 22-3 is in contact therewith. Conductive with the plating layer 12-1. The plating layer 12-1 is electrically connected to the plating layer 12-2 through the plating layer 12-3. Furthermore, the plating layer 12-2 and the plating layer 22-3 ′ are electrically connected to each other, and are electrically connected to the plating layers 22-1 ′ and 22-2 ′ continuously connected to the plating layer 22-3 ′. . Then, if the plating layer 22-1 and the plating layer 22-1 ′ are connected by a pattern (not shown), the first connection terminal group 12a and the second connection terminal group 22a are in contact with each other double (two points). Therefore, the electrical contact is guaranteed.

  In other words, the connection of terminal A on the first surface of the first electric board → terminal A on the second surface of the second electric board → terminal A on the second surface of the second electric board → terminal A on the other surface of the first electric board. A path is formed, and 18 such connection paths are obtained for the terminals A to R, and the first and second electrical terminals 10 and 20 are connected in a form having 18 connection paths.

7A, 7B, and 7C show another connection example of the first and second electric boards, and FIG. 7A shows a cross section of the first and second electric boards corresponding to FIG. 6A. FIGS. 4B and 4C show the arrangement of the first and second connection terminal groups.
In this modification, as shown in FIG. 7A, the plating layer 12-3 does not remain on the end surface 10b ′ of the connection portion 10b of the first electric board, so Thus, the connection terminals 12-1 and 12-2 of the first connection terminal group 12 provided on both surfaces thereof are isolated to form two connection paths. Therefore, the connection terminals 22-1 and 22-2 on both sides are electrically connected via the plating layer (connection terminal) 22-3 on the inner peripheral surface of the opening slot on the biasing part 27 side, and the part sandwiching the opening slot 26 a. The connection path isolated on the 27 side and the part 28 side constitutes an isolated connection path even after the first and second electric boards 20 are connected.

  That is, in the configuration in which the plating layer 12-3 does not remain on the end surface 10b ′ of the connection portion 10b of the first electric board, as shown in FIGS. If the connection terminals on one surface of the second electrical terminal group are the connection terminals 1 to 20 on the side, the connection terminals 1 to 20 on the corresponding surfaces of the first connection terminal group 12 are connected. Further, the connection terminals A to R on the corresponding surface of the first connection terminal group 12 are connected to the connection terminals A to R on the other surface of the second electrical terminal group on the part 27 side, respectively. In other words, in this modification, there are 20 connection paths, for example, the terminal 1 of the first electric board → the terminal 1 of the second electric board on the side 27 and the side 28 across the opening slot 26a. , 18 connection paths of terminal A of the first electric board → terminal A of the second electric board are configured.

  Since the urging portion 27 is provided on the second electric board 20 in this way, each connection terminal 22a of the second connection terminal group 22 is pressed by the cantilever portion (biasing portion) 27 and the pressing portion 28 is first. The two electric boards 10 and 20 are electrically connected by being brought into contact with the first electric board 10 and being urged and brought into contact with the connection terminals 12a of the first connection terminals. And since the electric boards 10 and 20 can be connected without requiring separate parts or soldering, quick connection is possible, and workability is greatly improved. Further, since the electric boards 10 and 20 are connected under the elastic holding by the urging of the urging portion 27, the urging portion 27 is present even if vibration, impact, etc. are applied, so that the connection between the electric boards 10 and 20 is possible. There will be no poor contact.

  Further, since the inner peripheral surface of the opening slot 26a is formed orthogonally to the substrate plane of the second electric substrate 20, the first electric substrate 10 is inserted into the opening slot from directly above the second electric substrate 20. By pushing into 26a, the 1st, 2nd electric boards 10 and 20 are connected substantially orthogonally, and the 1st and 2nd electric terminal groups 12 and 22 are conduct | electrically_connected. In the configuration in which the first and second electric boards are substantially orthogonal and electrically connected to the first and second electric terminal groups 12 and 22, the connecting operation is the first electric board from directly above the second electric board 20. The first and second electric boards 10 and 20 can be connected by an operation without a sense of incongruity of pushing 10.

As in the embodiment, in the configuration in which the first electric substrate 10 has a connecting portion (protruding end) 10b protruding from the substrate body 10a, and the second electric substrate has an opening slot 26a similar to the connecting portion, The electric boards 10 and 20 are quickly and easily connected simply by pushing the connecting portion 10b into the opening slot. That is, instead of forcibly opening the opening slot 26a in the plane direction of the second electric substrate 20, a part of the portion 27 (site 27) that connects the urging portion 27 and the pressing portion 28 adjacent to the opening slot 26a. ') Is bent in a direction perpendicular to the plane of the second electric substrate 20 so that the connecting portion 10b is greatly opened up and down. And each connection terminal 22a of the 2nd connection terminal group 22 is easily connected by the urging | biasing site | part 27 only by pushing the connection part 10b in the opening slot 26a.
In the above description, the first connection terminal group 12 is provided on both surfaces of the first electric substrate 10, but it may be provided on only one surface.

  8 is a perspective view of the connection structure of the electric board according to another embodiment (Example 2) of the present invention before the first and second electric boards are connected, and FIG. 9 is a line CC in FIG. Sectional drawing after connection along is shown. Constituent members corresponding to those in the second embodiment having the same functions as those in the first embodiment are given the same reference numerals, and the description thereof is omitted. Mainly differences from the first embodiment will be described.

  This embodiment (Embodiment 2) is different in that a retaining prevention means (falling prevention means) is provided on the first electric board, and the other configuration is common to Embodiments 1 and 2. That is, as shown in FIG. 8 and FIG. 9, the first electric board 10 has the retaining means 14 at the left and right ends of the connecting portion 10b, respectively, A notch slot 16 extending in a direction orthogonal to the end face 10b ′ of the portion 10b is formed from the connecting portion 10b to the substrate body 10a. The two locking prevention means 14 include a guide surface (inclined surface) 14a that is inclined in a direction away from the notch slot 16 at the back as the distance from the end surface 10b ′ of the connection portion 10b increases, and the substrate body 10a and the connection portion 10b. It is formed in a shape having a hooking portion 14b that is separated from the step portion by an interval corresponding to the thickness t3 of the second electric substrate 20.

  In other words, the guide surface 14a is notched in the direction perpendicular to the notch slot 24 at the connecting portion between the substrate body 10a and the connecting portion 10b, and the groove 14c slightly wider than the width t3 can be formed.

  The inner ends of the left and right hooks 14b are separated by a distance L1-1 slightly longer than the length L2 of the opening slot 26a of the second electric board 20, and the end face of the connecting part 10b of the first electric board 10 is separated. The length L1-2 is shorter than the length L2 of the opening slot 26a of the second electric substrate 20.

  Also in this embodiment (embodiment 2), as in the embodiment 1, the connecting portion 10b is located on the opening slot 26a of the second electric board 20, more specifically, on the opening slot 26a. The first electric board 10 placed substantially orthogonally on the second electric board 20 is lowered, and the connecting portion 10b is pushed into the opening slot 26a. Then, the guide surface 14a of the retainer preventing means 14 is pressed against the left and right end surfaces of the opening slot 26a, and the retainer preventing means 14 is deformed, and the hooking portion 14b is displaced in the direction of the notch slot 16 at the back and escapes. The connecting portion 10b is inserted into the opening slot 26a. Then, the connecting portion 10b of the first electric board 10 is fitted and held in the opening slot 26a under the elasticity of the biasing portion 27.

  At the same time as the connecting portion 10b is held in the opening slot 26a, the deformation preventing means 14 is restored to its original shape, the hooking portion 14b is restored, and the end of the opening slot 26a is inserted into the groove 14c. Then, the hooking portion 14b engages with the end portion of the opening slot 26a and cannot be detached, thereby preventing the connecting portion 10b from coming off from the opening slot.

  The notch slot 16 is formed in a shape and width that allow the hooking portion 14b of the retaining means 14 to be displaced by a distance that allows the connection portion 10b to be held in the opening slot 26a.

  Also in the second embodiment, as in the first embodiment, the urging portion 27 is provided on the second electric board 20, so that each connection terminal 22 a of the second connection terminal group 22 is moved by the urging portion 27. The connection terminals 12a corresponding to the connection terminals are biased and abutted to electrically connect the two electric boards 10 and 20. And since the electric boards 10 and 20 can be connected without requiring separate parts or soldering, quick connection is possible, and workability is greatly improved. Further, since the electric boards 10 and 20 are connected under the elastic retention by the urging of the urging portion 27, the urging portion 27 contacts the connection between the electric boards 10 and 20 even if vibration, impact, etc. are applied. There will be no defects.

  In the second embodiment, the anti-removal means 14 with the guide surface (inclined surface) adjacent to the slot 16 is provided on the left and right step portions of the first electric board 10, so that the connecting portion 10b is formed in the opening slot 26a. The electric boards 10 and 20 are securely maintained in the connected state, being held so as not to be detached.

  Then, if the connection portion 10b is pushed into the opening slot 26a until the end surfaces 10c of the left and right step portions of the first electric substrate 10 come into contact with the second electric substrate 20, the first electric substrate 10 becomes the second electric substrate. 20. In other words, the connection between the electric boards 10 and 20 can be made quickly and easily because the connecting portion has only to be pushed into the opening slot until the left and right step portions of the first electric board 10 abut against the second electric board 20 and feel resistance. Can be done.

  Further, if the hooking portions 14b of the left and right retaining prevention means 14 are deformed in directions adjacent to each other (slot direction, inside), the connection between the first and second electric boards 10 and 20 is released as necessary. The combination of the electric boards to be connected can be easily changed.

  FIG. 10 is a perspective view of the electrical board connection structure according to still another embodiment (Embodiment 3) of the present invention before the first and second electrical boards are connected. Also in the third embodiment, like in the second embodiment, corresponding constituent members in the third embodiment having the same functions as those in the first embodiment are given the same reference numerals, and the description thereof is omitted. 1 will be mainly described.

The third embodiment is different in that the first electric substrate is a flexible substrate, and other configurations are common to the first and third embodiments.
That is, as shown in FIG. 10, a reinforcing substrate 10A, for example, a plastic substrate, is attached to the flexible substrate 10 from the back surface of the surface on which the connection terminal group is formed. When combined with a backing substrate (reinforcing substrate) in this way, a predetermined shape is maintained and sufficient strength can be obtained, so that the flexible substrate (first electric substrate) 10 can be handled in the same manner as a hard electric substrate. it can. That is, by pushing the connecting portion 10b of the backed flexible substrate (first electric substrate) 10 into the opening slot 26a of the second electric substrate 20, the first electric terminal group 12 and the second electric substrate of the flexible substrate. The second connection terminal group 22 is electrically connected, and the first electric substrate 10 made of a flexible substrate and the second electric substrate 20 that is a hard substrate are only pushed in as in the first and second embodiments. Can be connected.

  As the backing substrate 10A, the connecting portion 10b of the flexible substrate (first electric substrate) 10 is pushed into the opening slot 26a of the second electric substrate 20 which is a hard electric substrate, and the biasing portion 27 is biased. Needless to say, a shape that is reliably elastically held is used.

  As described above, according to the present invention, the second electrical board is connected to the second electrical board, for example, by simply pushing the first electrical board into the opening slot, and the connection terminal groups are connected to each other, and the second biased portion is elastic. The first electric board is held on the electric board, and the electric boards can be quickly connected without increasing the number of parts and the number of processes.

  The above-described embodiments are for explaining the present invention, and are not intended to limit the present invention. All modifications, alterations, etc. within the technical scope of the present invention are included in the present invention. Needless to say.

For example, in the embodiment, the first electric board 10 is connected orthogonally to the second electric board 20. However, it is not necessary to connect the two electric boards 10 and 20 at right angles, and they may be connected from an oblique direction. For example, the first and second electric substrates can be connected in an oblique direction by forming the inner peripheral surface 26a 'facing the opening slot 26a so as to be inclined without being orthogonal to the substrate plane.
Further, if the end portions of the slots 24, 26a and the like are rounded, the concentration of the pressing force at the end portions can be alleviated, and the second electric substrate 20 can be prevented from cracking from the end portions.

  The present invention can be applied to a wide range of connections between electrical boards that cross two electrical boards and make a connection terminal group on the boards conductive.

The perspective view before the connection of the 1st, 2nd electric substrate of the connection structure of the electric substrate which concerns on one Example of this invention is shown. The perspective view after the connection of the 1st, 2nd electric substrate of the connection structure of the electric substrate which concerns on one Example of this invention is shown. The top view of the 2nd electric substrate is shown. (A) (B) shows an example of the formation process of the 2nd connection terminal group in the opening slot of the 2nd electric substrate. FIG. 4 shows a cross-sectional view of the second electrical substrate along the line AA in FIG. 3. 2A and 2B show connection examples of the first and second electric boards, in which FIG. 2A is a cross-sectional view of the first and second electric boards along the line BB in FIG. 2, and FIGS. The arrangement of the second connection terminal group is shown. FIG. 6 shows another connection example of the first and second electric boards, (A) is a cross-sectional view of the first and second electric boards corresponding to FIG. 6 (A), (B) and (C) are the first, The arrangement of the second connection terminal group is shown. The perspective view before the connection of the 1st and 2nd electric substrate of the connection structure of the electric substrate which concerns on another Example (Example 2) of this invention is shown. Sectional drawing after the connection of the 1st, 2nd electric substrate of the connection structure of the electric substrate which concerns on another Example (Example 2) of this invention along line CC of FIG. 8 is shown. The perspective view before the connection of the 1st, 2nd electric substrate of the connection structure of the electric substrate which concerns on another Example (Example 3) of this invention is shown.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Electrical board connection structure 10 1st electrical board 10a Substrate body 10b Connection part (protruding end part)
10b 'End surface of connecting portion 10A Backing board 12 First connecting terminal group 12-1, 12-2 Connecting terminal 14 Retaining prevention means (falling prevention means)
14a Guide surface (slope)
14b Hooking part 16 Notch slot 20 Second electrical terminal 22 Second connection terminal group 22-1 and 22-2 Connection terminal 24 Notch slot 26a Opening slot (insertion slot)
27 Biasing part (cantilevered part)
28 Pressing part (both supported beam)
L1, L2 Connection portion, length of opening slot t1, t2 Thickness of first electric substrate (connection portion), width of opening slot t3 Thickness of second electric substrate

Claims (3)

In the electrical board connection structure,
A first electric substrate having a first connection terminal group provided on the substrate plane;
A second connection terminal group formed in the substrate thickness direction of the substrate end face so as to cross the first electric substrate and come into contact with the first connection terminal group; and the first connection terminal group A second electrical board having a biasing portion that biases and contacts the second connection terminal group;
An electrical board connection structure comprising:   2. The electrical board connection structure according to claim 1, wherein the first and second electrical boards are substantially orthogonal to each other, and the first connection terminal group and the second connection terminal group are electrically connected.   3. The electric board connection structure according to claim 1, wherein the first electric board further includes a retaining means for preventing the attachment of the first electric board after being attached to the second electric board.

Images