JP4919481B2 - Press-fit terminal and connector having the same - Google Patents

Description

  The present invention relates to a press-fit terminal that is unlikely to be damaged such as buckling or bending during insertion, and a connector having the same.

In general, a connector used in an electric circuit includes a housing made of an insulating molding resin and conductive terminals accommodated in the housing. Then, one end of the terminal is electrically connected to one end of the corresponding terminal, and the other end is electrically connected to the wiring conductive portion of the circuit board, whereby the connector is used as a component part of the electric circuit. In recent years, as a terminal of such a connector, press-fit terminals that do not require a soldering process have been widely used when attaching to a circuit board from the viewpoint of environment, hygiene, and work efficiency.

  On the other hand, such a press-fit terminal (hereinafter simply referred to as a terminal) is a flat plate obtained by punching from a metal flat plate. As shown in FIG. 7, the configuration is such that a contact (not shown) accommodated in the housing and a rectangular terminal base 102 that is connected to the press-fit slit on the side wall of the housing are connected to the base end of the contact. And a fixing portion 103 that extends in the direction of the circuit board 121 from the terminal base portion 102 and is electrically and mechanically connected while being held in the through hole 122 of the circuit board 121.

  The fixed portion 103 is provided with a pair of elastically deformable legs so as to surround a substantially elliptical slit 105 formed therebetween. Accordingly, this elastically deformable leg has a doubly-supported beam structure having fixed ends at both ends, and exhibits an arcuate shape having a gentle undulation near the center in the longitudinal direction. Here, the dimension in the width direction connecting the apexes of the left and right undulations formed on the pair of elastically deformable legs is formed larger than the diameter dimension of the through hole 122. As a result, when the terminal is inserted into the through-hole 122, the pair of elastically deformable legs 103 advances while causing inward bending deformation. At this time, a restoring force is generated toward the inner wall surface of the through hole 122, and this acts as a force against the inserting force during the insertion, and becomes a direct factor that affects the work efficiency. In addition, when the insertion is completed, the restoring force acts as a holding force for fixing the terminal in the through hole 122. Here, the insertion characteristics generally required for a press-fit terminal are a high holding force and a low insertion force.

Here, what is described in Patent Document 1 as a technique for enhancing the holding force without increasing the insertion force is that a pair of elastically deformable legs has a convex shape at the lower part of the inner edge of the elastically deformable legs facing each other through a slit. This is achieved by providing an auxiliary fulcrum.
That is, when the terminals are inserted into the through holes, the pair of elastically deformable legs start to bend inward and come close to each other. Subsequently, contact between the auxiliary fulcrum portions occurs immediately before completion of insertion, and a new fulcrum is formed here, whereby the distance between the fulcrum and the action point is shortened. As a result, the retention force is enhanced by strengthening the restoring force in the insertion completion stage, and at the same time, the conventional insertion characteristics are maintained in the insertion middle stage.
JP-A-2005-259502

  The press-fit terminal having the above configuration has an advantage in that the holding force can be reinforced without increasing the insertion force on the design by providing the convex auxiliary fulcrum, but in the actual insertion work, There are various variations such as variations in processing accuracy of press-fit terminals and through-holes, and variations in assembly accuracy of press-fit terminals, and the sum of these variations causes the insertion force value to vary over a large range. . On the other hand, since this type of terminal is designed to enhance the holding force after insertion from the material surface and the shape surface, the value of the insertion force is naturally increased. Under such circumstances, if a large value is taken near the maximum value of variation, work with a large insertion force exceeding normal prediction is required, disturbing the state of stable work, There may be cases where troubles such as a decrease in efficiency occur. Further, when the insertion force is increased, plastic deformation such as terminal bending and buckling occurs, which not only deteriorates the work efficiency but also may cause a decrease in quality. In addition, since it is normal that a plurality of these terminals are provided in the connector, the range of the above-mentioned variation is further increased when considering one connector unit, and the problem of work efficiency and quality is more serious. It becomes. Furthermore, the above-described technique for strengthening the holding force by forming a new fulcrum caused by the contact between the auxiliary fulcrum portions having a thickness of only a thin metal plate is based on an extremely unstable equilibrium state. However, in actual insertion work, it is also predicted that troubles such as the auxiliary fulcrum portions sliding and overlapping each other frequently occur, and the work is hindered.

  The present invention has been made in view of the above-described problems. In the initial stage of inserting a press-fit terminal into a through-hole, variation in processing accuracy of the press-fit terminal and the through-hole, and the accuracy of assembling the terminal into the housing Even if the contact position between the press-fit terminal and the through-hole opening edge varies due to variations in the size of the press-fit terminal, the insertion force can be kept constant, and damage such as buckling is unlikely to occur and the work efficiency is high. It is another object of the present invention to provide a connector including these.

  In order to solve the above-described problems, in the present invention, a linear press-fitting auxiliary rod is formed on a part of the elastically deformable leg of the press-fit terminal, or an auxiliary deformation in which the deformation space is extended downward at the lower portion of the deformation space described above. The structure includes a space.

As a result, when the press-fit terminal is inserted into the through-hole, the angle of the tangent at the contact point between the opening edge of the through-hole and the outer edge of the elastically deformable leg (press-fit auxiliary rod) is ensured. A constant magnitude of the component force corresponding to the force is achieved.
Further, by providing the auxiliary deformation space below the deformation space provided between the pair of elastic deformation legs, the size of the insertion force is reduced without reducing the leg width of the deformation legs.

More specifically, the present invention provides the following.

(1) A fixed portion that is electrically connected to a conductive material formed on the inner periphery of the through hole when it is press-fitted into the through hole of the circuit board, and extends from the upper end of the fixed portion, and is accommodated in the connector housing. A press-fit terminal having a contact for electrical connection to a corresponding contact and an insertion guide portion extending from a lower end of the fixing portion , wherein the fixing portion has a deformation space formed in a central portion, and A pair of elastically deformable legs that extend in the vertical direction so as to surround the deformation space and have a doubly supported beam structure that performs elastic deformation, and the elastically deformable legs are inserted into the through-holes when they are press-fitted into the through-holes. the outer portion including a portion in contact with the opening edge of the hole, with at least one press-fit auxiliary ridge including one straight line, the deformation space is provided with an auxiliary deformation space extending downward from the lower end portion, said elastic strange Legs, press-fit terminal, characterized by defining said deformation space along the inner edge so that any cross-sectional dimension that is substantially ensure a constant value.
Here, the “deformation space” refers to a space for a pair of elastic deformation legs provided in the press-fit terminal to elastically deform inward when inserted. In addition, the “press-fit auxiliary rod” constitutes the outer edge portion of the elastically deformable leg in contact with the through hole opening edge when the elastically deformable leg is inserted into the through hole, and consists of a straight or curved edge, This is the part that contacts the opening edge of the through hole at the beginning of the insertion stage.
Here, the “auxiliary deformation space” is a deformation space extending downward from the lower end of the deformation space, and has the effect of moving one fixed end of the elastic deformation leg further from the point of action. is there.

In the invention described in (1), when the press-fit terminal is inserted into the through hole, the press-fitting assist rods of the elastically deformable legs that are in contact with the through-hole opening edge are constituted by straight lines, so that the range of contact position variation Inside, a constant component force corresponding to the insertion force is secured, and as a result, the insertion force is kept constant.
Further, in the invention described in (1), when the press-fit terminal is inserted into the through hole, the deformation fulcrum (fixed end) of the elastically deformable leg that bends inward is from the action point in contact with the opening edge of the through hole. Since it is located far away, the insertion force is reduced and work efficiency is improved.

(2) A connector comprising two or more press-fit terminals described in (1) above.

The invention described in (2) relates to a connector having a plurality of press-fit terminals equipped with the press-fitting auxiliary rod described in (1). Originally, as the number of terminals mounted increases, the variation range of the overall size and shape of the terminals increases, and problems such as an increase in insertion force or plastic deformation of the terminals become more obvious. The press-fit terminal provided with the press-fitting auxiliary rod according to the invention of (1) can reduce the work efficiency and quality deterioration due to the deterioration of the processing accuracy and assembly accuracy of the members in the production process, and the range of these variations. It tries to prevent it by making it smaller. Therefore, rather than evaluating a terminal having such an effect on a terminal basis, it is more appropriate to evaluate the effect of the invention on a connector having a plurality of terminals having such an effect on a connector basis. It can be done.

  According to the present invention, since the insertion force when inserting the press-fit terminal into the through hole is reduced and the insertion force is stabilized, the operation is always performed under a reduced constant load. Can be done. As a result, it is possible to prevent damage caused by plastic deformation such as buckling or bending of the terminal due to unexpected excessive load or sudden change in the direction in which the load is applied, and as a result, work efficiency can be improved. Can do.

BEST MODE FOR CARRYING OUT THE INVENTION

  Hereinafter, embodiments for carrying out the present invention will be described in detail with reference to the drawings.

  The press-fit terminal 10 is formed by punching a plate-like copper alloy, and its surface is plated with tin or the like. As shown in FIGS. 1 and 2, the press-fit terminal 10 has a terminal base 11 fixed by press-fitting into a press-fitting hole (not shown) provided in the connector housing 17, and a circuit from the terminal base 11. And an elastic deformation portion 12 extending in the direction of the substrate 21 (downward in FIG. 1), and further to the end, the width gradually narrows to guide the through hole 22 formed in the circuit substrate 21. An insertion guide 16 is provided. Here, the “fixed portion” used in the claims has a meaning including the “elastically deformable portion”. Further, in this embodiment, the press-fit terminal 10 is obtained by punching a plate-like copper alloy, but is not limited to a copper alloy, and other than metals and alloys such as iron-based metals and aluminum alloys, silver A conductive resin or rubber imparted with conductivity by adding conductive fine particles such as particles may be used. Further, in the present embodiment, the surface is plated with tin or the like, but is not limited to this, and other processing methods such as plating or vapor deposition with other metals may be used. Is not required.

  The elastic deformation portion 12 is provided with elastic deformation legs 12a and 12b, and is substantially elliptical so as to be defined by the inner edges of the elastic deformation legs 12a and 12b (having an ellipse in the vertical direction of the arrow in FIG. 1). The slit 14 and the auxiliary slit 15 are formed. The auxiliary slit 15 extends continuously downward from the lower end of the slit 14 and expands the deformation space opened in the central portion of the elastic deformation portion 12 downward. Here, the “deformation space” used in the claims means the “slit”, and the “auxiliary deformation space” means the “auxiliary slit”. Further, in the present embodiment, only one auxiliary slit 15 is provided, but the number is not limited to one. Of course, two or more auxiliary slits 15 may be provided.

  The pair of elastically deformable legs 12a and 12b is a target with respect to the center line C-C in the longitudinal direction (the vertical direction of the arrow in FIG. 1), and after branching downward from the lower end of the rectangular terminal base 11, both are slightly outside. Stretch in the direction. Subsequently, an arc is drawn while maintaining a substantially constant width, and after forming a longitudinal portion with a gentle undulation in the central portion, the direction is gently changed inward to extend. Thereafter, the inward arcs are joined to the insertion guide 16 in a state where the inward arcs merge. Further, the elastic deformation legs 12a and 12b have a width dimension Z larger than the diameter dimension Y of the through hole 22, so that elastic deflection is always generated inward from the initial insertion stage to the completion of the insertion. In general, this deflection is deformed so as to gradually increase in accordance with the amount of insertion, and thus is substantially maximized when insertion is completed. The outward restoring force generated according to this deflection takes the maximum value when the insertion is completed, thereby ensuring the generation of a strong holding force. However, since the resistance force that hinders the change of the motion state is large at the initial stage of insertion, generally, the peak of the insertion force appears at the initial stage of insertion.

  Further, the elastically deformable legs 12 a and 12 b are provided with a taper portion 13 made of a straight line at a part of the outer edge before connecting to the insertion guide portion 16. At the start of insertion, the tapered portion 13 comes into contact with the opening edge 22 a of the through hole 22. Here, the “press-insertion assist rod” used in the claims has a meaning including the “taper portion 13 formed of a straight line at a part of the outer edge before the insertion guide portion 16” in the present embodiment. Although there is, it is not limited to this.

  As shown in FIG. 2, the taper angle α1 of the taper portion 13 (press-fit auxiliary rod) is one of the elements that determine the insertion force, and needs to be fully examined at the design stage. In the present embodiment, the taper angle α1 is such that the portion corresponding to the elastically deformable leg of the conventional shape (gradual arc shape) that does not form the taper portion 13 (press-fit auxiliary rod) corresponds to the opening edge 22a of the through hole 22. Is substantially the same as the slope α2 of the tangent line at the point X ′ in contact with. Here, since the taper portion 13 (press-fit auxiliary rod) is formed over a predetermined range including the contact X, when the press-fit terminal 10 is inserted into the through-hole 22, the through-hole is always formed. 22 opening edge 22a will contact this taper part 13 (press-fit auxiliary | assistant rod). Here, the “predetermined range” refers to the case where the aperture size of the through hole 22 and the width size of the press-fit terminal 10 vary within a range of variations in processing accuracy, and the press-fit terminal 10 and the housing 17. Even when the assembling varies within the range of variation in assembling accuracy, it always means a range sufficient for the opening edge 22a of the through hole 22 to contact the tapered portion 13 (press-fit auxiliary rod). In this embodiment, the taper angle α1 is substantially the same as α2, but is not limited to this, and α1 may be larger than α2 or may be smaller. Furthermore, in this embodiment, the taper portion 13 (press-fit auxiliary rod) is composed of only one straight line, but is not limited to a single straight line, for changing the insertion feeling or for other purposes. Accordingly, it is of course possible to adopt a configuration in which a plurality of straight lines having different inclinations are continued, and the plurality of straight lines may be connected discontinuously. Further, when connecting a plurality of straight lines in a continuous or discontinuous manner, the straight lines may be connected in a continuous or discontinuous order from the smallest slope, or may be connected in a continuous or discontinuous order from the largest. In particular, when three or more straight lines are connected continuously or discontinuously, the slope of the straight line not only increases or decreases sequentially but also changes from a decreasing trend (or increasing trend) to an increasing trend (or decreasing trend). May be.

  Further, the taper portion 13 (press-fit auxiliary rod) will be described in detail. As described above, by providing the terminal with the taper portion 13 (press-fit auxiliary rod), the opening edge 22a of the through hole 22 and the arbitrary point on the straight line constituting the taper portion 13 (press-fit auxiliary rod) are always present. , You will always be in one place. The direction of the tangent line at the contact X is equal to the direction of the straight line constituting the tapered portion 13 (press-fit auxiliary rod). That is, even if the dimensions of the terminal or the through hole vary, the opening edge 22a of the through hole 22 and the elastic deformation legs 12a and 12b of the terminal are always the same by providing the tapered portion 13 (press-fit auxiliary rod). The tangent direction will be touched. This ensures a constant insertion force for each terminal.

  Next, the slit 14 and the auxiliary slit 15 will be described. The slit 14 is provided so that the inner edges of the elastically deformable legs 12a and 12b are not in contact with each other when the elastically deformable legs 12a and 12b of the double-supported beam structure are deformed inward. Therefore, if an arbitrary cross section of the elastic deformation portion 12 is taken, the sum of the cross sectional dimensions S (left and right directions in FIG. 2) of the elastic deformation legs 12a and 12b takes a value larger than the diameter Y of the through hole 22. There is nothing. That is, the relationship 2S <Y holds.

Further, the slit 14 and the auxiliary slit 15 will be described in more detail. The elastically deformable legs 12a and 12b have a longitudinal direction (up and down direction in the direction of the arrow in FIG. 2) defining the slit 14 and the auxiliary slit 15 along the inner edge so that the arbitrary cross-sectional dimension S of the elastically deformable legs 12a and 12b is secured. It has a bow shape. The auxiliary slit 15 is obtained by moving one fixed end of the deflection further downward by expanding the deformation space downward from the lower end of the slit 14.
The elastic deformation portion 12 has a ridge shape that is the most bulging at the center and is squeezed at the upper and lower ends, so the shape of the auxiliary slit 15 is such that the inner edges do not contact each other due to the inward deflection of the elastic deformation legs. While ensuring the slit width, on the other hand, care must be taken that the leg widths of the elastically deformable legs 12a and 12b are not narrowed at the lower end. This is because if the width of the auxiliary slit 15 is too large, the leg widths at the lower ends of the elastically deformable legs 12a and 12b are narrowed, leading to a reduction in restoring force (holding force) caused by deflection.

On the other hand, the elastic deformation part 12 is in contact with the through hole 22 at its opening edge 22a. This contact point X is an action point for deforming the elastically deformable legs 12a and 12b acting as doubly supported beams inward when the press-fit terminal 10 is inserted into the through hole 22. At this time, the distance L1 between the virtual line XX and the horizontal line passing through the tip R of the auxiliary slit 15 is the horizontal line passing through the tip Q of the slit 14 when there is no auxiliary slit 15 (shown by a broken line in FIG. 2). The distance L2 is longer by providing the auxiliary slit 15 (L2 <L1). As a result, in the double-supported beam structure, the same deformation amount can be applied with a smaller force as much as the distance from the fulcrum to the action point becomes longer (the distance from the other fulcrum to the action point does not change). It becomes possible. That is, by providing the auxiliary slit 15, the press-fit terminal 10 can be inserted into the through hole 22 with a smaller insertion force.

  Next, a connector composed of a plurality of terminals provided with the tapered portion 13 and the auxiliary slit 15 as described above will be described with reference to FIG. The connector includes the press-fit terminal 10 and the connector housing 17 described above. The connector housing 17 has a box shape obtained by molding synthetic resin, and one side surface of the box shape is an opening surface 17a for receiving a corresponding connector (not shown). A plurality of press-fit terminals 10 that are electrically and mechanically connected to contacts provided in the corresponding connector are arranged vertically and horizontally on the opening surface 17a. On the bottom wall 17b of the connector housing 17 located opposite to the opening surface 17a, press-fitting slits 18 for press-fitting and fixing terminals are provided vertically and horizontally. The press-fit terminal 10 is press-fitted into the press-fit slit 18 from the outside to the inside of the bottom wall 17 b of the connector housing 17, and is fixed to the bottom wall 17 b of the connector housing 17 at the terminal base 11 of the press-fit terminal 10.

  Thus, when the connector housing 17 assembled from the plurality of press-fit terminals 10 having the taper portion 13 and the auxiliary slit 15 is mounted on the circuit board 21, the effect exhibited by the taper portion 13 and the auxiliary slit 15 is as follows. Compared with the effect produced when the press-fit terminal 10 provided with the above is mounted in the through hole 22, the effect produced by each configuration appears more remarkably. In other words, the effect of leveling the variation in the amount of insertion force and the effect of reducing the insertion force are even more specific when multiple terminals are inserted simultaneously. It becomes obvious as an improvement in efficiency and product quality, and the magnitude of its technical value can be recognized again.

Next, a method for mounting the press-fit terminal 10 into the through hole 22 of the circuit board 21 will be described with reference to FIG. In the connector housing 17, a plurality of press-fit terminals 10 are disposed on the lower surface (not shown), and through holes 22 corresponding to the respective press-fit terminals 10 are disposed in the circuit board 21. Yes.

  The insertion of the terminal is started from the state where all the insertion guide portions 16 hold the connector 17 in the air along the opening edge of the corresponding through hole 22. When the tapered portion 13 (press-fit auxiliary rod) formed on the elastically deformable legs 12a and 12b starts to be applied to the opening edge 22a, the elastically deformable legs 12a and 12b are elastically bent inward and have a restoring force outwardly. Is generated. If the connector 17 and the circuit board 21 are kept in parallel against the restoring force, the insertion is continued. As a result, the press-fit terminal 10 is mechanically held in the through hole 22 by elastic deformation restoring force, and electrical connection is realized through the contact.

  The taper portion 13 (press-fit auxiliary rod) formed of a straight line provided on the elastically deformable legs 12a and 12b, which is one of the characteristic parts of the present invention, is provided on all the press-fit terminals 10 provided on the connector 17. Yes. In general, as the number of press-fit terminals 10 disposed increases, the width of the entire variation range increases, and the number of terminals that require excessive insertion force also increases. Therefore, the effect which the taper part 13 (press-fit auxiliary paddle) produces becomes more apparent as the number of terminals arranged increases.

  The auxiliary slit 15, which is another characteristic part of the present invention, is intended to reduce the insertion force by moving the fulcrum position of the beam further from the action point. Generally, as the number of terminals arranged increases, the total insertion force increases and the workability deteriorates, so the effect of reducing the insertion force becomes more obvious.

Therefore, according to the present embodiment, the following effects can be obtained.
(A1) Since the elastically deformable legs 12a and 12b are in contact with the inner edge of the through hole 22 and the tapered portion 13 (press-fit auxiliary rod) made of a straight line, the necessary insertion force can be stabilized. It is possible to eliminate damages caused by plastic deformation such as buckling and bending of the steel and to improve work efficiency.
(A2) By providing the auxiliary slit 15 downward from the lower end of the slit 14, the fulcrum causing the elastic deformation of the elastic deformation legs 12a and 12b moves further away from the action point, thereby pressing with a smaller insertion force. The fit terminal 10 can be inserted. As a result, damage such as buckling and bending of the terminals can be eliminated and work efficiency can be improved.
(A3) Since the auxiliary slit 15 is provided, the position of the fulcrum of the elastically deformable legs 12a and 12b and the leg width of the elastically deformable leg can be easily changed in the vicinity of the fulcrum, so that the insertion force can be adjusted efficiently. You can do it.
(A4) Since the insertion force can be stabilized and reduced, the work burden can be reduced when working with a jig.
(A5) By assembling a plurality of press-fit terminals 10 having the tapered portion 13 and the auxiliary slits 15 to the connector, effects such as reduction of work load and stabilization of quality appear more remarkably.

The above embodiment may be changed to another embodiment (another example) as follows.
(B1) In the embodiment, the taper portion 13 (press-fit auxiliary rod) made of a straight line provided on the elastically deformable legs 12a and 12b is composed of only one straight line. However, as shown in FIG. It is also possible to take a configuration in which straight lines having a line are continuous. Even when configured in this way, the effects (a1) to (a5) can be obtained.
(B2) In the tapered portion 13 (press-fit auxiliary rod) formed by connecting a plurality of straight lines having a plurality of inclinations described in (b1) above, a plurality of lines are formed so that the intersection angle between the straight line and the horizontal line gradually increases with the insertion stage. A straight line may be formed. Even when configured in this way, the effects (a1) to (a5) can be obtained.
(B3) In the taper portion 13 (press-fit auxiliary rod) formed by connecting straight lines having a plurality of inclinations described in (b1) above, a plurality of lines are formed so that the intersection angle between the straight line and the horizontal line gradually decreases with the insertion stage. A straight line may be formed. Even when configured in this way, the effects (a1) to (a5) can be obtained.
(B4) In the taper portion 13 (press-fit auxiliary rod) formed by connecting straight lines having a plurality of inclinations described in (b1) above, particularly when connecting three or more straight lines, As described in the above (b2) or (b3), the line angle may be configured not to increase or decrease sequentially. Even when configured in this way, the effects (a1) to (a5) can be obtained.
(B5) In the embodiment, the shape of the auxiliary slit is a substantially rectangular shape with a rounded tip, but the tip may be flat as shown in FIG. 5 ((A) in FIG. 5). Further, the tip may be pointed (FIG. 5B). Furthermore, the tip may be a large circle (FIG. 5C). Further, a step may be provided so that the width of the tip is gradually narrowed ((D) in FIG. 5). Even when configured in this way, the effects (a1) to (a5) can be obtained.

FIG. 1A is a front view of a connector housing on which a press-fit terminal is mounted and a circuit board before mounting. (B) is a side view of a press-fit terminal. It is a front view of what expanded the auxiliary slit and straight taper part of a press fit terminal. FIG. 3A is a sectional view before insertion, FIG. 3B is a sectional view before insertion, FIG. 3C is a sectional view at an insertion start stage, and FIG. FIG. 4A is a perspective view of a connector in which a press-fit terminal having an auxiliary slit and a straight taper portion is assembled. (B) is a front view before attaching the connector assembled with the press-fit terminal to the circuit board. (C) is a front view of a state in which a connector assembled with a press-fit terminal is completely attached to a circuit board. It is the front view which expanded the slit part of the press fit terminal provided with two or more auxiliary slits which are another example. 5A is an auxiliary slit having a flat tip, FIG. 5B is an auxiliary slit having a sharp tip, FIG. 5C is a circular auxiliary slit having a large tip, and FIG. It is an auxiliary slit. It is the front view which expanded the taper part of the press fit terminal provided with the taper part which consists of a some straight line which is another example. 6A shows the case where α1> α2> α3, and FIG. 6B shows the case where α11 <α21 <α31. It is a front view of the conventional press fit terminal.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Press fit terminal 11 Terminal base 12 Fixed part 13 Tapered part 14 Slit 15 Auxiliary slit 16 Insertion guide part 17 Housing 18 Press-fit slit 21 Circuit board 22 Through hole

Claims (2)

A fixing portion that electrically connects to a conductive material formed on the inner periphery of the through-hole when pressed into the through-hole of the circuit board;
A contact extending from the upper end of the fixed portion and accommodated in the connector housing and electrically connected to the corresponding contact;
In a press-fit terminal having an insertion guide portion extending from the lower end of the fixed portion ,
The fixing portion includes a deformation space formed in a central portion, and a pair of elastic deformation legs that extend in the vertical direction so as to surround the deformation space and have a double-supported beam structure that performs elastic deformation,
The elastically deformable leg includes at least one press-fitting auxiliary rod including one straight line at an outer edge including a portion in contact with the opening edge of the through-hole when press-fitted into the through-hole.
The deformation space includes an auxiliary deformation space extending downward from the lower end,
The press-fit terminal characterized in that the elastic deformation leg defines the deformation space along an inner edge so that an arbitrary cross-sectional dimension of the elastic deformation leg ensures a substantially constant value.   A connector comprising two or more press-fit terminals according to claim 1.

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