JP6017129B2 - Connecting terminal - Google Patents

Description

  The present invention relates to a connection terminal, and more particularly to a connection terminal mainly used for connection between substrates, a connection structure between terminals, and a connection structure between substrates.

As a terminal for connecting between substrates, there is an example in which a conventional relay terminal is diverted as it is or with some improvements. Some have improved insertion / extraction workability (Patent Document 1).
This type of terminal is a pair of male type and female type, and a required number is attached to both front and rear ends of one board extending in one direction, and a plurality of boards are detachably connected.
The male terminal having such a connection structure is connected to the terminal body in a posture in which a flat contact portion is projected from the end of the board. The contact portion protruding from the terminal body generally has a large contact area in order to increase connection reliability, and the terminal material tends to be thicker to ensure strength. It is in.

JP 2010-251135 A

Due to these circumstances, the male type terminal tends to increase the weight of the contact part of the overhanging part, and the position of the center of gravity is located in the contact part or even very close to the contact part side even in the terminal body Is located. Therefore, as it is, the male terminal has such an unstable weight distribution. Therefore, when the substrate is placed, the placement posture cannot be maintained and the contact portion falls down and the placement posture is lost. There is a fear. In order to solve this problem, there are cases where measures are taken to increase the placement area of the terminal body placed on the board and bring the center of gravity of the entire terminal closer to the center of the terminal body.
However, increasing the mounting area of the terminal main body for stabilizing the mounting posture counteracts the trend of reducing the size and weight of electronic devices by increasing the integration of electronic components.

The present invention has been made in view of the above circumstances, and provides a connection terminal, an inter-terminal connection structure, and an inter-substrate connection structure that have a small substrate mounting area (substrate mounting area) and can effectively use the substrate. For the purpose.
Another object is to provide a connection terminal, an inter-terminal connection structure, and an inter-board connection structure that are easy to process.
Yet another object is to provide a connection terminal, an inter-terminal connection structure, and an inter-board connection structure with good insertion / extraction workability.

In order to solve the above problems, the male terminal of the present invention is (1) a male terminal made of a metal plate, and at least three of the top surface, the bottom surface, and the left and right side surfaces are enclosed . A box part having a longitudinal direction in the front-rear direction, and a terminal part having a contact part extending out of the box part from the front in the longitudinal direction, the terminal part being a top surface direction from the front end of the bottom surface to, or the rising portion extending laterally opposite from the front end of the side surface, and a connecting portion extending forward from the end of the rising portion, the contact portion connected to the front end of the connecting portion, characterized in that it comprises a Is.

According to the present invention, the male terminal includes a box part surrounded by four or at least three surfaces with a metal plate placed on the substrate surface, and a terminal part including a contact part connected to the female terminal. ing.
Since the structure of the substrate mounting portion is a box structure in which four surfaces, or at least three surfaces, are surrounded by metal plates, the weight is larger than that of the plate structure. Thereby, even if the mounting area is reduced, it is easy to secure a weight enough to prevent the collapse from occurring in the box portion. Therefore, the mounting area of the box portion can be reduced as compared with the plate-shaped structure.
Further, since the contact portion of the male terminal extends outward from the box portion, the workability of insertion / extraction with the female terminal is good.

For example, when two male terminals are mounted in parallel, since the substrate width is limited, the substrate mounting portion is generally increased in the longitudinal direction so as not to collapse. However, by making the substrate mounting portion into a box structure in this way, it is possible to reduce the size in the longitudinal direction.
Moreover, since such a box part and a terminal part are integrally shape | molded from one metal plate, workability is favorable. The box portion includes a rectangular bottom surface, a side surface continuous in the left-right width direction of the bottom surface, a top surface continuous to at least one of the side surfaces, and the terminal portion includes the rising portion and the rising portion. You may provide the connection part which changes direction in the horizontal direction near the opposite surface, and extends in the box body part outward direction, and the contact part connected to the end surface of this connection part.
Furthermore, the contact portion may extend in parallel to the bottom surface (top surface), or may extend in parallel to the side surface.

More preferably, the male terminal is (2) the male terminal, the length L1 in the longitudinal direction of the box part, the length L2 extending outward from the box part of the terminal part, In this case, the relational expression 0.8> L1 / (L1 + L2)> 0.4 is established .

According to this invention, the length of the box part which occupies the full length of a male type terminal is in the range of 40 to 80 percent. In the case of a plate-like body structure, this value is generally about 80%. The difference between the two values means that in order to secure a predetermined contact area (size), the box body structure is placed 0.375 times larger than the plate-like body structure ( Implementation) The length is enough. Therefore, it is possible to obtain a connection terminal in which the substrate mounting area (substrate mounting area) is small and the substrate can be used effectively.
This 0.375 times can be obtained from the following equations 1 and 2.
In the case of Formula 1 and box body structure; L1 ′ / (L1 ′ + L2) = 0.6
In the case of Formula 2, plate-like structure; L1 / (L1 + L2) = 0.8
(L1, L1 ′: the length of the substrate mounting portion, L2: the length of the contact portion, and the ratio of the box portion that is closed to the entire terminal length was calculated as 0.6)

More preferably, the male terminal is a (3) wherein the male terminal, the contact portion and is characterized in that it comprises the overlapping portion constituting the plate thickness folded metal plate.

According to this invention, since the contact portion has a structure in which thin metal plates are stacked, processing is easy. In addition, since the plate thickness is thin, the cost is low.
In addition, it is possible to reduce the weight of the contact portion by superimposing only where strength is required and not overlapping where unnecessary. Thereby, size reduction of a box part is possible. Therefore, it is possible to obtain a connection terminal in which the substrate mounting area (substrate mounting area) is small and the substrate can be used effectively.

More preferably, the male terminal is (4) the male terminal, and the central portion of the contact portion does not have the overlapping portion, and a recess portion is formed by a corresponding female terminal locking piece. It is characterized by being .

  According to the present invention, the central portion of the contact portion is not overlapped and has a recess. As a result, the engaging piece of the female terminal to be engaged is engaged with the recess, and the fitting posture is fixed. Therefore, it is possible to form the engagement recess in the contact portion with easy processing.

More preferably, the male terminal (5) wherein a male terminal, wherein the rising portion is characterized in that in said box body portion.

  According to the present invention, the rising part is in the box part. As a result, the weight of the box portion increases, so that the size of the box portion can be further reduced. Moreover, since the rising part is in the box part, the rising part is prevented from being inadvertently deformed by the box part serving as a shield. Therefore, the male terminal having a structure for protecting the main part can be obtained by easy processing.

More preferably, the male terminal (6) wherein a male terminal, top of the box body section is characterized in that comprises a flat surface.

  According to this invention, the top surface of the box part has a flat surface. As a result, the top surface can use a vacuum suction method during transportation. Therefore, the male terminal can be placed on a substrate by an automatic machine by a vacuum suction method.

More preferably, the inter-terminal connection structure includes (7) the male terminal and a female terminal connected to the male terminal, and the female terminal sandwiches the contact portion of the male terminal. And at least one of the clamping pieces is an elastic piece provided with a pressing portion, the pressing portion is provided with a locking projection, and the contact portion of the male terminal is is elastically contacted to the pressing portion of the female terminal, the locking projection on the recess portion is characterized in that the locking.

According to this invention, the inter-terminal connection structure includes the male terminal and the female terminal connected to the male terminal. At the time of fitting, the engaging posture is fixed by engaging the engaging protrusion provided on the female terminal with the recess provided on the male terminal. Therefore, it is possible to obtain a connection terminal in which the substrate mounting area (substrate mounting area) is small and the substrate can be used effectively.
In addition, an inter-terminal connection structure with good workability and insertion / extraction workability can be obtained.
The pressing portion of the female terminal may be provided with an engaging concave portion, and the contact portion of the male terminal may be provided with an engaging convex portion. Even in this case, the above-mentioned actions and effects can be obtained.

More preferably, the inter-board connection structure includes (8) the male terminal and the female terminal, and at least one of the male terminals is mounted on a side end of one board, and the female terminal is at least one mounted on the side edge of the other substrate, is characterized in that the one, and can be connected to the side end of the other boards in are opposed orientation.

  According to the present invention, an inter-substrate connection structure with a small substrate mounting area and easy processing can be obtained.

FIG. 1 is an external perspective view of a male terminal according to an embodiment of the present invention. FIG. 2 is an external perspective view of the female terminal. FIG. 3 is a schematic view of the male terminal, in which (A) is a plan view, (B) a front view, (C) a rear view, (D) a top view, (E) a bottom view, and (F) a sectional view. It is. 4A and 4B are schematic views of the female terminal, wherein FIG. 4A is a plan view, FIG. 4B is a front view, FIG. 4C is a rear view, FIG. 4D is a top view, FIG. It is. 5A and 5B are perspective views of the inter-substrate connection structure, where FIG. 5A is a diagram showing a state before connection, and FIG. 5B is a diagram showing a connection state. 6A and 6B are cross-sectional views showing the locked state of the inter-board connection structure, where FIG. 6A is a diagram showing a state before connection, FIG. 6B is a diagram showing a locked state, and FIG. FIG. FIG. 7 is a top view showing the inter-substrate connection structure. FIG. 8 is an external perspective view showing a state in which a positional deviation has occurred between the substrates of the inter-substrate connection structure, wherein (A) is a diagram showing a state in which a positional deviation in the longitudinal direction (front-rear direction) has occurred. ) Is a diagram showing a state in which a vertical misalignment occurs, and (C) is a diagram showing a state in which a horizontal misalignment has occurred.

Hereinafter, a terminal structure and an inter-board connection structure according to an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is an external perspective view of a male terminal according to an embodiment of the present invention. FIG. 2 is an external perspective view of the female terminal according to the embodiment of the present invention. FIG. 3 is a schematic view of a male terminal according to an embodiment of the present invention, in which (A) is a plan view, (B) front view, (C) rear view, (D) top view, and (E) bottom view. (F) It is sectional drawing. 4A and 4B are schematic views of a female terminal according to an embodiment of the present invention, in which FIG. 4A is a plan view, FIG. 4B is a front view, FIG. 4C is a rear view, FIG. 4D is a top view, and FIG. (F) It is sectional drawing. 4A and 4B are schematic views of a female terminal according to an embodiment of the present invention, in which FIG. 4A is a plan view, FIG. 4B is a front view, FIG. 4C is a rear view, FIG. 4D is a top view, and FIG. (F) It is sectional drawing.
The indicated direction in the explanation is based on the direction definition shown in the figure.

<Male terminal>
As shown in FIGS. 1 and 3, the male terminal 1 is obtained by bending a metal plate. As the metal plate, a copper alloy or iron alloy base material whose surface is subjected to corrosion resistance treatment may be used. The corrosion resistance treatment may be gold plating, tin plating, solder plating, or the like.
The male terminal 1 is paired with the corresponding female terminal 3 to constitute one connection structure. These connection terminals 1 and 3 are widely used by being attached to an electric wire end, directly attached to a substrate, or indirectly via an insulating material.

The male terminal 1 includes a tubular box body 20 having four sides surrounded by wall surfaces and having openings 25 and 26 in the front-rear direction, and a terminal 10 extending from one opening 25 of the box body 20. It has.
The box body 20 includes a bottom surface 21, left and right side surfaces 22, 23, a top surface 24, and openings 25, 26 at front and rear ends. The box body 20 is a plate-shaped metal molded body, and is erected inward from the bottom surface 21, left and right side surfaces 22 and 23 that rise vertically from both left and right end portions of the bottom surface 21, and the end surfaces of the left and right side surfaces 22 and 23. It consists of the top surface 24. The top surface 24 forms a flat surface by connecting the surfaces that are continuous from the left and right side surfaces 22 and 23 with the end surfaces thereof being butted at the center.
Of course, the structure of the box portion is not limited to that described above. For example, the end surfaces may be abutted on the bottom surface side, or the end surfaces may be abutted on the corners between the side surface and the bottom surface.

As described above, since the top surface 24 has a flat surface, it is possible to use a vacuum suction type transfer device in the production line. Thus, since the box part 20 consists of a three-dimensional structure provided with the right and left side surfaces 22 and 23, the weight per board | substrate mounting unit area increases compared with a planar structure like a plate-shaped body.
The box body portion 20 includes mounting portions 27 and 28 that are continuous with the bottom surface 21. The surfaces of the mounting portions 27 and 28 are substantially flush with the surface of the bottom surface 21. The mounting portions 27 and 28 are cut and raised pieces obtained by cutting and raising the side surfaces 22 and 23 in a U-shape, and are formed integrally with the box body portion 20.

The terminal portion 10 is connected to the front end surface of the bottom surface 21. The terminal portion 10 includes a rising portion 11 that rises vertically from the front end of the bottom surface 21, a connecting portion 12 that changes from the end surface of the rising portion 11 in the horizontal direction and extends forward, and a contact portion 13 that continues to the end surface of the connecting portion 12. It has.
The terminal portion 10 is continuous from the front end of the bottom surface 21 and is formed integrally with the box body portion 20. The contact portion 13 is displaced upward while maintaining a substantially parallel posture with respect to the bottom surface 21.
Thus, the vertical level of the contact portion 13 can be adjusted relatively easily within the range of the opening 25 in accordance with the position of the counterpart, that is, the female terminal.
The substantial length of the elastic deformation length of the terminal portion 10 is not limited to the contact portion 13 that appears in appearance. In addition to the contact part 13, the rising part 11 and the connecting part 12 hidden in the box part 20 are also in the elastic deformation range. That is, the elastic deformation length of the terminal portion 10 is a total length of the contact portion 13, the rising portion 11, and the connecting portion 12.

Thus, since the elastic deformation length of the terminal portion 10 is long, the elastic deformation range of the tip is also widened. As a result, the allowable deviation amount of the terminal portion 10 increases. The rising portion 11 of the terminal portion 10 is continuous from the front end of the bottom surface 21 and is inside the box portion 20. Specifically, it is surrounded by a bottom surface 21, left and right side surfaces 22 and 23, and a top surface 24.
As a result, the rising section 11 has a structure that is physically protected from an external failure. The rising portion 11 can be elastically deformed in the front-rear direction. Accordingly, for example, damage applied to the contact portion 13 by the rising portion 11 absorbing an impact against an external force applied from the front to the tip of the contact portion 13 can be avoided or reduced. Further, with respect to external force applied in the vertical direction, the contact portion 13 itself or the contact portion 13 and the rising portion 11 can cooperate to absorb an impact.

The contact portion 13 has a flat plate shape. As shown in FIG. 1, the contact portion 13 is configured by stacking thin plate materials in order to ensure necessary strength and thickness. The contact portion 13 includes a recess 14 at the center of the lower surface. The recess 14 is configured by forming a portion that is not overlapped. The recess 13 is engaged with the engagement piece 44 of the counterpart female terminal 3 to fix the fitting state.
The connecting portion 12 changes the extending direction of the rising portion 11 rising vertically to the horizontal direction.

<Female terminal>
As shown in FIGS. 2 and 4, the female terminal 3 is obtained by bending a metal plate-like body. As the metal plate, a copper alloy or iron-based alloy whose surface is subjected to a corrosion resistance treatment may be used. The corrosion resistance treatment may be gold plating, tin plating, solder plating, or the like.
The female terminal 3 is surrounded by wall surfaces on four sides, a cylindrical main body 30 having openings 35 and 36 at front and rear ends, and a lock lever 40 formed with an engagement piece 44 that engages with the male terminal 1. And.
The main body 30 includes a bottom surface 31, left and right side surfaces 32 and 33 that rise vertically from the left and right ends of the bottom surface 31, and a top surface 34 that extends inward in the horizontal direction from the end surfaces of the left and right side surfaces 32 and 33. The top surface 34 has a structure in which end surfaces at the ends extending from the left and right side surfaces 32 and 33 are attached to each other. The top surface 34 is flat.
Of course, the structure of the box portion is not limited to that described above.

The lock lever 40 includes a spring portion 41 that is U-shaped in a side view and a lever portion 43 that is continuous with the tip of the spring portion 41. The spring portion 41 continues to the rear end of the bottom surface 31. The spring portion 41 has a protruding engagement piece 44 cut and raised. The engagement piece 44 engages with the recess 14 of the male terminal 1 and fixes the fitting state.
The female terminal 3 forms a fitting space 38 between the elastic contact portion 42 and the top surface 34. The lock lever 40 can be elastically deformed upward by the action of the spring portion 41. The gap S of the fitting space 38 is smaller than the thickness T of the contact portion 13 of the male terminal 1. When the contact portion 13 is inserted into the fitting space 38, the gap S is expanded to the thickness T. The pressing force acts on the contact portion 13 by the elastic deformation generated at this time, and the electromechanical connection is made.
The gap M at the inlet portion of the fitting space 38 is larger than the thickness T of the contact portion 13 of the male terminal 1 and starts elastic deformation after the contact portion 13 is inserted to some extent. Therefore, the degree of freedom in fitting is large, and it is effective for absorbing displacement.

<Terminal connection structure, board connection structure>
Another embodiment of the inter-terminal connection structure and inter-substrate connection structure will be described with reference to the drawings. 5A and 5B are perspective views of the inter-board connection structure according to the embodiment of the present invention. FIG. 5A is a diagram showing a state before connection, and FIG. 5B is a diagram showing a connection state. 6A and 6B are cross-sectional views showing a locked state of the inter-board connection structure according to the embodiment of the present invention, in which FIG. 6A is a diagram showing a state before connection, FIG. 6B is a diagram showing a locked state, ) Is a diagram showing a unlocked state.

As shown in FIGS. 5 and 6, the inter-board connection structure includes the male terminal 1 and the female terminal 3 described above, and the first board 5 and the second board 6 on which each is mounted. The first substrate 5 and the second substrate 6 are obtained by printing electrical wiring on an insulating base material made of epoxy resin. In consideration of heat dissipation, a substrate using an aluminum alloy as a base material may be used. In addition to the connection terminal terminal described above, an electronic device terminal to be mounted is exposed on the substrate surface.
The 1st board | substrate 5 and the 2nd board | substrate 6 are elongate, and may be used in the aspect with which two or more were connected. In order to electrically and mechanically connect the divided first substrate 5 and second substrate 6, the male terminal 1 and the female terminal 3 described above are used.

  The male terminal 1 and the female terminal 3 are mounted on the end of the first substrate 5 or the second substrate 6 as shown in FIGS. In the present embodiment, two identical terminals are juxtaposed. On the substrate to be connected, the male terminal 1 and the female terminal 3 are mounted in pairs at corresponding positions. The board surface on which the male terminal 1 and the female terminal 3 are mounted may be the same surface as the surface on which other electronic components are mounted, or may be a different surface, for example, the opposite surface.

<Board mounting of male terminal>
A board mounting form of a male terminal will be described with reference to the drawings. FIG. 7 is a top view showing the inter-substrate connection structure according to the embodiment of the present invention.
The board mounting of the male terminal is performed in such a manner that the contact portion 13 projects from the end of the first board 5 as shown in FIG. With respect to the length of the contact portion 13 required to ensure a highly reliable connection, the box portion 20 mounted on the first substrate 5 is, for example, when the male terminal 1 is placed at the mounting position. Even if there is a fine movement transmitted from the surrounding drive unit, it is necessary to have a weight that does not cause the front to slip. That is, it is a condition that the substrate can be stably placed so that the center of gravity of the entire male terminal 1 including the contact portion 13 and the box portion 20 is located near the center position of the box portion 20.

It is an object of the present invention how to satisfy the above condition by reducing the substrate mounting (mounting) area. This invention solves the said subject by making a board | substrate mounting (mounting) part into a box body structure. When the substrate mounting (mounting) part has a plate-like structure, there is no outside method to increase the total length L of the substrate mounting (mounting) part in order to satisfy the above condition, and as a result, the effective use area of the substrate is narrowed. Will be.
In the case of the present embodiment, the substrate mounting (mounting) portion has a box structure. As a result, a substrate having a small projected area and a large weight per unit area can be obtained.

In the case of the male terminal 1 of this embodiment, as shown in FIG. 7, when the length L2 of the contact portion 13 and the length L1 of the box body portion 20 are set, 0.8> L1 / (L1 + L2)> 0. .4 relational expression holds. The numerical value of this calculation formula becomes smaller as the height of the box portion 20 is increased, but the current value is about 0.6 in consideration of the design tolerance.
When the substrate mounting (mounting) portion has a plate-like body structure, this ratio is generally about 0.8. Comparing both structures assuming that the length of the contact portion is the same as the required amount, the box structure of the present embodiment needs only about 37 percent less than the plate structure. That is. Thus, the box structure of the male terminal 1 is a space-saving type and contributes to effective use of the substrate.

<Connection process between boards>
6A and 6B are cross-sectional views showing a locked state of the inter-board connection structure according to the embodiment of the present invention, in which FIG. 6A is a diagram showing a state before connection, FIG. 6B is a diagram showing a locked state, ) Is a diagram showing a unlocked state.

The electromechanical connection between the first substrate 5 and the second substrate 5 according to the present embodiment is as shown in FIG. 6, and the male terminal 1 mounted on the first substrate 5 and the second substrate 6. And the connection between the female terminals 3.
The first substrate 5 on which the male terminal 1 is mounted on the end and the second substrate 6 on which the female terminal 3 is mounted on the end are opposed to each other in the longitudinal direction. In a state where the surface heights of the first substrate 5 and the second substrate 6 are the same, the contact portion 13 of the male terminal 1 is positioned at the same height as the opening 35 of the fitting space 38 of the female terminal 3. To do. In the width direction, the width of the contact portion 13 and the width of the opening 35 are aligned at the fitting position in a state where the width between the first substrate 5 and the second substrate 6 is aligned.

In this state, the first substrate 5 on which the male terminal 1 is mounted and the second substrate 6 on which the female terminal 3 is mounted are connected. When the contact portion 13 of the male terminal 1 is inserted into the fitting space 38 of the female terminal 3 to the normal position, the engagement piece 44 of the lock lever 40 is engaged with the recess portion 14 of the contact portion 13, The fitting state is fixed.
The engagement state is released by applying a force in a direction to separate the male terminal 1 from the female terminal 3 in a state where the lever 43 of the lock lever 40 is pushed down and the engagement piece 44 is removed from the recess 14. .

<Displacement absorption mechanism>
FIG. 8 is an external perspective view showing a state in which a positional shift has occurred between the substrates in the inter-board connection structure according to the embodiment of the present invention. FIG. 8A shows a state in which a positional shift in the longitudinal direction (front-rear direction) has occurred. (B) is a figure which shows the state which the position shift of the up-down direction produced, (C) is a figure which shows the state which the position shift of the left-right direction produced.

The displacement absorption of the inter-substrate connection structure will be described with reference to FIG. When the first substrate 5 and the second substrate 6 are displaced on the X axis in the front-rear direction, the first substrate is displaced in the X2 direction, and the second substrate 5 is displaced in the X1 direction. A gap is formed between the end of the substrate 5 and the end of the second substrate 6.
The connection state between the male terminal 1 and the female terminal 3 at this time is such that the contact portion 13 of the male terminal 1 has the opening 35 of the female terminal 3 as shown in FIG. It passes through and is accommodated in the fitting space 38. The tip of the contact portion 13 is at a position shifted from the normal position in the rear X2 direction as a result of the occurrence of the shift.

However, at this time, the contact portion 13 advances while pushing down the lock lever 40, so that the elastic contact portion 42 of the lock lever 40 comes into elastic contact with the inserted contact portion 13 to form an electrically connected state. Further, the recess 14 on the lower surface of the contact portion 13 is formed to be long in the rear X2 direction so as to increase the displacement tolerance. As a result, even if the female terminal 3 and the male terminal 1 are displaced in the front-rear direction (X1, X2 direction) with respect to the regular position, the engagement piece 44 of the lock lever 40 is connected to the contact portion 13. The engagement state is fixed by engaging with the recess 14.
Thus, even if the first substrate 5 and the second substrate 6 are misaligned in the front-rear direction (X1, X2 direction), the male terminal 1 and the female terminal 3 are allowed to fit together. Due to the high degree, they are fitted together to form an electromechanical connection state.

Next, when the first substrate 5 and the second substrate 6 are misaligned on the vertical Z axis, the first substrate 5 is misaligned in the Z2 direction, and the second substrate 6 is misaligned in the Z1 direction. At the start of insertion, the contact portion 13 of the male terminal 1 is positioned in the lower Z2 direction with respect to the opening 35 of the female terminal 3.
However, the female terminal 3 of the present embodiment has an opening 35 formed larger than the outer dimension of the contact portion 13 of the male terminal 1, and the Z axis (up and down) of the opening 35 in the Z-axis direction. The directional dimension is larger than the thickness of the contact portion 13, whereby the contact portion 13 can be inserted through the opening 35.
The contact portion 13 inserted into the fitting space 38 comes into contact with the lower side of the lock lever 40 as compared with the normal position due to the positional deviation. Since the strength of the lock lever 40 is configured assuming a range in which such positional deviation occurs, plastic deformation does not occur even when it comes into contact with the normal position from below (Z2 direction). Accept contact with proper elastic deformation.

  The contact portion 13 advances through the fitting space 38 while pushing down the lock lever 40 designed in this way. The contact portion 13 inserted to the normal depth is elastically held between the elastic contact portion 42 of the contact portion 13 and the top surface 34 and is electrically and mechanically connected. Further, the depression 14 on the lower surface of the contact portion 13 is formed to be large so as to increase the tolerance for deviation. Thereby, even if the female terminal 3 and the male terminal 1 are displaced in the vertical direction (Z1 and Z2 directions) from the normal position, the engagement piece 44 of the lock lever 40 is recessed in the contact portion 13. The fitting state is fixed by engaging with the portion 14.

Next, when the first substrate 5 and the second substrate 6 are misaligned on the Y axis in the left-right direction, the first substrate 5 is misaligned in the Y2 direction, and the second substrate 6 is misaligned in the Y1 direction. In the insertion start stage, the contact portion 13 of the male terminal 1 is positioned in the left Y2 direction with respect to the opening 35 of the female terminal 3.
However, the opening 35 of the female terminal 3 of the present embodiment is formed to be larger than the outer dimension of the contact portion 13 of the male terminal 1, and the Y axis direction of the opening 35 ( The dimension in the left-right direction is larger than the width dimension of the contact portion 13. Thereby, the contact portion 13 can be inserted through the opening 35.

The contact portion 13 inserted into the fitting space 38 moves to the left in the fitting space 38 as compared with the normal position due to the positional deviation, but is in contact with the lower side of the lock lever 40. The elastic contact force of the lock lever 40 does not decrease even when such a positional deviation occurs, and gives the same elastic contact force to the contact portion 13 as when no positional deviation has occurred.
The contact portion 13 inserted to the normal depth is elastically held between the elastic contact portion 42 of the contact portion 13 and the top surface 34 and is electrically and mechanically connected. Further, the recess 14 on the lower surface of the contact portion 13 is formed to be long in the left-right direction (Y1, Y2 direction) so as to increase the deviation tolerance. Thereby, even if the female terminal 3 and the male terminal 1 are displaced from each other in the left-right direction (Y1, Y2 direction) from the normal position, the engagement piece 44 of the lock lever 40 is recessed in the contact portion 13. The fitting state is fixed by engaging with the portion 14.

As described above, since the male terminal 1 and the female terminal 3 of the present embodiment have an increased positional displacement tolerance due to the terminal structure, the respective substrates (first and second) 5 and 6 are relatively relative to each other. Even if a deviation occurs in the X-axis direction, the Y-axis direction, and the Z-axis direction, the terminals can be connected without applying stress to the terminal body and the substrate.

<Action and effect>
The effect of the present invention is that the weight of the board mounting area per unit is larger than that of the plate-like body because the main body of the male terminal is composed of a box portion. Thereby, even if a board | substrate mounting area is small, it does not fall down. Therefore, the substrate can be used effectively.
Since the contact part of the male terminal extends outward from the box part, the visibility is good and the insertion / extraction workability with the female terminal is good.
The contact portion of the male terminal obtains the necessary strength and thickness by overlapping thin plate materials. As a result, cost reduction and workability (workability) are improved.
Since the male type and female type terminals are provided with a box portion having a flat top surface, it is possible to use a conveyance mechanism by a vacuum suction method when mounting on a substrate.

In the male type and female type terminals, the spring part bent into a U-shape is surrounded by the wall of the box part or the main body part. As a result, the spring portion is protected from inadvertent impacts. Of course, the structure of the spring portion is not limited to the U shape, and may be a crank shape, a Z shape, or a V shape.
Even if a positional shift occurs relatively between the terminals, since the shift tolerance is increased by the terminal structure, the terminals can be fitted.
It can be inserted and removed by movement on one axis. This improves the workability of insertion / removal.
Locking and unlocking can be easily performed because the lock lever is only pushed down.
Both the male terminal and the female terminal, particularly the female terminal, have a structure in which solder and flux rise hardly occur in the spring part because the distance between the spring part and the mounting part is separated. This protects the spring portion from solder and flux.

<Other embodiments>
The present invention has been described based on the embodiments. However, the present invention is not limited to the above-described embodiments, and various modifications can be made within the scope of the inventive idea.

DESCRIPTION OF SYMBOLS 1 Male type terminal 10 Terminal part 11 Standing part 12 Connecting part 13 Contact part 14 Recessed part 20 Box part 21 Bottom face 22, 23 Side face 24 Top face 25, 26 Opening part 27, 28 Mounting part 3 Female terminal 30 Main part 31 Bottom surface 32, 33 Side surface 34 Top surface 35, 36 Opening portion 37 Mounting portion 38 Fitting space 40 Lock lever 41 Spring portion 42 Elastic contact portion 43 Lever portion 44 Engagement piece 5 First substrate 6 Second substrate

Claims (8)

A male terminal made of a metal plate,
At least three of the four surfaces of the top surface, the bottom surface, and the left and right side surfaces are enclosed, and a terminal portion having a box portion having a longitudinal direction in the front and rear direction and a contact portion extending from the front in the longitudinal direction to the outside of the box portion. And comprising
The terminal portion extends from the front end of the bottom surface to the top surface direction or from the front end of the side surface to the opposite side surface direction, and
A male terminal comprising: a connecting portion extending forward from an end of the rising portion; and the contact portion connected to a front end of the connecting portion. The male terminal,
When the length L1 in the longitudinal direction of the box part and the length L2 of the terminal part extending from the box part are 0.8> L1 / (L1 + L2)> 0.4 The male terminal according to claim 1, wherein: The male terminal,
3. The male terminal according to claim 1, wherein the contact portion includes an overlapping portion that folds a metal plate to constitute a plate thickness. The male terminal,
Central portion of the contact portion, the overlapping portions without, according to any one of the recess locking piece according to a corresponding female terminal is composed of claim 1, wherein 3 Male terminal. The male terminal,
The male terminal according to any one of claims 1 to 4, wherein the rising portion is in the box portion. The male terminal,
The male terminal according to any one of claims 1 to 5, wherein a top surface of the box part has a flat surface. A male terminal according to any one of claims 4 to 6, and a female terminal connected to the male terminal,
This female terminal has a pair of clamping pieces for clamping the contact portion of the male terminal, and at least one of the clamping pieces is an elastic piece provided with a pressing portion, , With a locking projection,
The inter-terminal connection structure, wherein the contact portion of the male terminal is elastically contacted with the pressing portion of the female terminal, and the engaging protrusion is engaged with the recessed portion. A male terminal according to any one of claims 4 to 6, and a female terminal connected to the male terminal ,
At least one male terminal is mounted on the side edge of one substrate,
At least one female terminal is mounted on the side edge of the other board,
The inter-substrate connection structure, wherein the connection is possible in a posture in which the side ends of the one and the other substrates are opposed to each other.

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