JP6412046B2 - Circuit board electrical connector - Google Patents

Description

  The present invention relates to an electrical connector for a circuit board in which a mating connector is connected in a direction perpendicular to the surface of the circuit board while being attached to the circuit board.

  As this type of circuit board electrical connector, Patent Document 1 and Patent Document 2 include a housing that holds a terminal, a fixed housing that is fixed to the circuit board, and a movable housing that is movable with respect to the fixed housing. A connector is disclosed in which terminals are spanned between the fixed housing and the movable housing.

  In the connector of Patent Document 1, a fixed housing attached on the surface of a circuit board has a rectangular frame shape, and a central portion that is an inside thereof is opened through vertically, and a lower portion of a movable housing is the center. A space for making the movable housing movable with respect to the fixed housing is formed between the movable housing and the fixed housing. The movable housing has a hollow portion that opens upward, and a mating connector as a mating connector is fitted into the hollow portion from above.

  The terminal has a contact portion that contacts and connects with the mating connector on one end side and is located in the hollow portion of the movable housing, and a substrate connecting portion that is solder-connected to the circuit board is provided on the other end side so as to protrude from the fixed housing. .

  In Patent Document 1, a fixed housing is located below the movable housing, and the movable housing extends from the side surface of the fitting protrusion protruding into the hollow portion to the bottom wall and extends to the lower surface of the bottom wall. The contact portion of the terminal is attached from below so as to penetrate the bottom wall, and is press-fitted and held by the movable housing in the terminal groove. Further, the terminal is press-fitted and held by the outer wall of the fixed housing on the connection portion side. The terminal has an elastic part that is convex and bent in a range from the terminal groove to the connection part extending outside the housing. The elastic portion is accommodated in a housing space between the fixed housing and the movable housing and can be elastically displaced.

  In contrast to Patent Document 1, in Patent Document 2, the terminal attached to the movable housing from below extends downward from the contact portion and extends into the internal space of the fixed housing located below the movable housing. A lower end extends out of the fixed housing and is bent at a right angle to form a connection portion. The terminal has an elastic portion that extends vertically in a housing space formed in the internal space of the fixed housing and has a crank shape. The terminal is press-fitted and held by the movable housing near the contact portion and the vicinity thereof, and is press-fitted and held by the fixed housing near the connection portion.

  Thus, in Patent Document 1 and Patent Document 2, the elastic portion of the terminal is elastically displaced within the housing space of the housing, so that the movable housing becomes movable with respect to the fixed housing.

Patent No. 5603790 JP2015-035352

  However, in Patent Document 1 and Patent Document 2, the contact portion side of the terminal is held by the movable housing by press-fitting attachment to the movable housing, but it is not sufficient to hold only the contact portion. For this purpose, in addition to the contact portion extending in the connector fitting direction, a holding portion by penetration or press-fitting into the housing is also provided below the contact portion. Therefore, the holding portion of the housing, and hence the held portion of the terminal, is elongated in the fitting direction, and the connector is enlarged in the same direction.

  Further, when attention is paid to the elastic portion of the terminal, in Patent Document 1, the elastic portion is located greatly outward in the connector width direction with respect to the contact portion, and thus the connector is enlarged in the connector width direction. On the other hand, in Patent Document 2, the elastic portion has a crank shape and extends long in the connector fitting direction, and the size of the connector in the connector fitting direction is extremely large.

  SUMMARY OF THE INVENTION It is an object of the present invention to provide a so-called floating circuit board electrical connector that strengthens the holding force of terminals in a movable housing without increasing the size of the connector in the connector fitting direction and the connector width direction. To do.

  The circuit board electrical connector according to the present invention is such that each of a plurality of arranged terminals is connected to a connection part for connection to the circuit board on one end side and a mating connection member fitted to the other end side. And a housing that holds the terminal has a movable housing that is movable relative to the circuit board, and the mating connection member is fitted into the movable housing.

  In such an electrical connector for a circuit board, in the present invention, the terminal connects the movable side held portion including the contact portion held by the movable side holding portion of the movable housing, and the connection portion and the movable side held portion. An elastic portion that can be elastically displaced with respect to the circuit board, and the elastic portion of the terminal has a top portion that forms the upper end of the elastic portion outside the movable-side held portion in the connector width direction, An interval is provided between the top portion and the movable side holding portion located above the top portion at the terminal position in the arrangement direction, and the terminal is a portion corresponding to the interval in the connector fitting direction. Further, at least a part of the plate surface of the terminal is exposed, and at least a part of the side edge of the terminal is exposed at the movable side held portion.

  In the present invention having such a configuration, there is a gap between the top of the elastic part of the terminal and the movable side holding part, and the plate surface of the terminal is exposed at the position of this gap, so the position corresponding to the above gap The mold for mold can enter, and the mold can be positioned in the connector width direction on the plate surface, so that the housing and the terminal can be integrally molded, and the holding of the terminal in the movable housing is stronger by the integral mold, and By positioning the mold in contact with the terminal plate surface, positioning of the terminal in the connector width direction is accurate, and the contacted portion is included in the held portion, so that the size is reduced in the height direction. Since the terminal is firmly held by integral molding of the housing, the holding length does not have to be very long. As a result, the height of the movable housing is reduced, and the connector can be miniaturized in the height direction. Furthermore, since the side edge of the movable side held portion is exposed, positioning in the terminal arrangement direction can be easily performed.

  In the present invention, the housing has a fixed housing in addition to the movable housing, and the fixed housing is attached to the circuit board and holds the fixed side held portion formed in the vicinity of the terminal connection portion. It can be made to have. As described above, when the housing has a fixed housing in addition to the movable housing, the fixed housing holds the vicinity of the connection portion of the terminal, and the movable housing becomes movable with respect to the fixed housing.

  In the present invention, it is preferable that the elastic part of the terminal is positioned so that a part of the elastic part overlaps the movable side held part of the terminal in the connector width direction. By doing so, it is possible to reduce the size in the connector width direction by the amount of overlap, and the elastic part becomes as long as possible in a limited space, and it is easy to be elastically displaced.

  In the present invention, the terminal is a portion corresponding to the distance between the top of the elastic portion and the movable side holding portion of the housing in the connector fitting direction, and the peripheral surface including the side edge as well as the plate surface of the terminal. It is preferable that at least a part is exposed. By doing so, the mold die can be brought into contact with the terminal side edge, and the positioning of the terminals in the terminal arrangement direction becomes more accurate, and the support force of the mold at the time of molding can be increased.

  In the present invention, the terminal has a curved portion in the movable side held portion and a tip portion extending from the curved portion, and at least the tip portion of the curved portion and the tip portion is embedded in the movable housing. It is preferable. In this way, by providing a curved portion, the terminal can increase the strength of the terminal itself without increasing the dimension in the connector height direction, the holding strength also increases due to the close contact with the housing, and the surface of the curved portion is further increased. It can also be exposed to have a mating connector guide function. In addition, the holding strength of the housing increases at the portion embedded in the housing.

  In the present invention, the tip can be plastically deformed in the thickness direction. By providing the plastically deformed portion in this manner, the resin can be easily caught during molding, and the holding force of the terminal by the housing can be improved.

  In the present invention, the movable housing is formed with a hole that exposes the side edge of the terminal extending in the connector width direction in a range of the distance between the elastic portion and the movable side holding portion in the connector fitting direction. It is preferable. When the hole portion is formed through the hole as described above, it is possible to insert and arrange the mold for molding, and the position of the mold becomes accurate and the supporting force at the time of molding increases.

  In the present invention, the movable housing has a partition wall between adjacent holes in the terminal arrangement direction, and the plurality of partition walls existing in the terminal arrangement direction are a plurality of types in which the adjacent partition walls are different from each other in the connector width direction. A wall thickness is preferred. By providing partition walls with different wall thicknesses in the housing in this way, the thickness of the outer mold for molding across the plurality of partition walls can be increased at the position of the thin wall thickness portion of the housing, so that the strength of the outer mold increases, and consequently the housing Can be ensured.

  As described above, the present invention provides a gap between the top of the elastic part of the terminal and the movable side holding part of the movable housing, and exposes the plate surface of the terminal at the position of the gap. As a result, the terminal and the movable housing can be formed as an integral molded body because the terminal mold can be positioned at the above-mentioned distance from the lateral direction and the plate surface of the terminal can be positioned by the mold. Therefore, the holding length is smaller than that of the conventional terminal mounting type, and the connector can be downsized in the height direction. Furthermore, since the side edge of the movable side held portion is exposed, positioning in the terminal arrangement direction becomes possible.

It is a section perspective view showing a connector and a mating connector as one embodiment of the present invention, (A) before fitting connection of both connectors, and (B) after fitting connection. FIG. 2 is a cross-sectional view corresponding to FIG. FIG. 2 is a cross-sectional view corresponding to FIG. 2 shows a manufacturing process of an integrally molded body of the movable housing and terminals of the connector of FIG. 2, (A) is a state where the mold is assembled and resin is molded, and (B) is a process where the mold is removed after the resin is cured. (C) is a state in which the fixed housing is attached to the integrally molded body. It is an expansion perspective view about the upper part of the connector of FIG. (A) is a perspective view when changing the angle about the hole part shown by FIG. 5, (B) is a perspective view which shows the modification about a narrow recessed part. FIG. 2 shows a modification of the elastic portion of the connector shown in FIG. 2, wherein (A) shows a horizontal straight portion of the elastic portion, and (B) shows an oblique straight portion.

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

  The circuit board electrical connector (hereinafter referred to as “connector”) 1 according to the present embodiment is connected to another circuit board mating electrical connector (hereinafter referred to as “mating connector”) 2, thereby Used to make a general connection. In the present embodiment, the connector 1 is connected to the horizontal circuit board P1 in FIGS. 1A and 1B, whereas the mating connector 2 is connected to the horizontal surface of the circuit board P1. It is connected to another circuit board P2 positioned vertically. 1A is a cross-sectional perspective view in a state before the connector 1 and the mating connector 2 are connected, FIG. 1B is a cross-sectional perspective view in a use state in which both connectors are connected, and FIG. FIG. 3 is an enlarged cross-sectional view showing the cross-sectional portion of FIG. 1A, and FIG. 3 is an enlarged cross-sectional view showing the cross-sectional portion of FIG.

  The connector 1 includes a housing 10 made of an insulating material that extends in the left-right direction in FIG. 1A (in FIG. 2, at right angles to the paper surface), and a plurality of connectors 10 that are arranged at intervals in the left-right direction and are held by the housing 10. (Hereinafter, the left-right direction is referred to as a terminal arrangement direction). The housing 10 molded integrally with the terminal 40 includes a fixed housing 20 attached to a fixed position with respect to the circuit board P1 via the terminal 20, and a movable housing 30 whose position is movable with respect to the fixed housing 20. It is made up. The movable housing 30 is supported by the fixed housing 20 via terminals 40. The housing 10 including the fixed housing 20 and the movable housing 30 will be described in detail later.

  The terminal 40 is made by bending a flat metal strip in the thickness direction, and as shown in FIG. 2, the terminal 40 has a substantially S-shape as a whole, and its tip is bent further smaller.

  In FIG. 2, the terminals in the terminal row located on the left and right have the same shape and are symmetric in the left-right direction (connector width direction), so one terminal 40 will be described below.

  The terminal 40 includes three substantially straight portions, ie, an inner straight portion 41, a middle straight portion 42, and an outer straight portion 43, which are located at intervals in the connector width direction, and a connector width from the upper end of the inner straight portion 41. An upper bent portion 44 that bends outward in the direction, a lower bent portion 45 that connects the lower end of the inner straight portion 41 and the lower end of the straight portion 42, and the upper end of the straight portion 42 and the outer straight portion 43. A middle bent portion 46 that connects the upper ends, an upper end straight portion 47 that extends downward and straight from the upper bend portion 44, and further bent and extends outward from the lower end of the outer straight portion 43. And a connection portion 48 for solder connection with the circuit board. The lower end of the upper straight portion 47 is locally plastically deformed by pressing or the like in the thickness direction.

  The terminal 40 forms a movable side held portion 40B held by the movable housing 30 described later by the upper half portion 41A, the upper bent portion 44, and the upper end straight portion 47 of the inner straight portion 41, and has an outer straight shape. The portion 43 forms a fixed-side held portion (also referred to as a fixed-side held portion 43) that is held by a fixed housing 20 described later. The terminal 40 thus held is a range from the lower half 41B of the inner straight part 41 which is not held by the movable housing 30 to the lower bent part 45 and the middle bent part 42 to the middle bent part 46, That is, the elastic portion 40 </ b> A is formed in a range not in contact with the movable housing 30 and the fixed housing 20. The elastic portion 40A is elastically displaceable mainly in the connector width direction, and slightly in the vertical direction and the terminal arrangement direction (a direction perpendicular to the paper surface in FIG. 2).

  The movable housing 30 is formed by integrally molding the movable side held portion 40B of the terminal 40, that is, the range from the upper end straight portion 47 of the terminal 40 to the upper half portion 41A of the inner straight portion 41 through the upper bent portion 44. It has two wall-like movable side holding parts 31 provided opposite to each other. The upper end straight portion 47 of the terminal 40 is embedded in the movable side holding portion 31 of the movable housing 30 at the tip (lower end) that has undergone plastic deformation. A lower end region of the upper half 41A of the inner straight portion 41, that is, a region adjacent to the lower half 41B is also embedded in the movable side holding portion 31 of the movable housing 30. A portion of the upper end straight portion 47 excluding the tip, the upper bent portion 44, and an upper half portion 41A of the inner straight portion excluding the lower end region are exposed on the plate surface of the terminal, and the movable side holding portion of the movable housing 30 is exposed. The same level surface as the inner wall surface of 31 is formed. The upper bent portion 44 forms an introduction portion with respect to the mating connector terminal, and the upper half portion 41A forms a contact portion (hereinafter also referred to as a contact portion 41A). Thus, the movable side held portion 40B of the terminal 40 is composed of both the end portions completely embedded in the movable side holding portion 31 of the movable housing 30 and the intermediate portion in which the plate surface is exposed and embedded. Is held by the movable side holding portion 31.

  The movable housing 30 has a support wall portion 33 extending downward from the central portion of the intermediate wall 32 in the connector width direction, which extends in the connector width direction and connects two wall-like movable side holding portions 31.

  Since the support wall 33 is located at the center in the connector width direction, an immersion space 33 </ b> A is formed on the side of the support wall 33 together with the intermediate wall 32.

  The intermediate wall 32 has an overhanging portion 32 </ b> A that protrudes from the outer wall surface of the movable side holding portion 31 in order to ensure its strength. In the present embodiment, the overhanging portion 32A is used for abutting positioning when the mating connector is mated and connected, and the lower surface of the support wall portion 33 is in contact with the circuit board when the connector is mounted. In addition, the side surface has a slope portion that tapers downward at the upper portion.

  Thus, the movable housing 30 that holds the terminal 40 by integral molding has a configuration in which the movable side holding portion 31 is convenient for the arrangement of the mold because of the relationship with the mold.

  First, as shown in FIG. 5, a narrow concave portion 31N and a wide concave portion 31W are adjacent to the upper portion of the movable side holding portion 31 in the vertical direction in the vicinity of the upper bent portion 44 in the vertical direction. It is formed between terminals 40 adjacent in the width direction. As the comb-shaped portions M1-A1 and M1-A2 of the mold for molding enter from the lateral direction into the narrow concave portion 31N and the wide concave portion 31W, the plate thickness surface of the terminal 40, that is, the side end surface, The positions of the terminals 40 in the arrangement direction are determined by contact (see FIG. 4B). In the terminal 40, a wide portion 40W of the terminal 40 is formed between the narrow concave portions 31N, and a narrow portion 40N of the terminal 40 is formed between the wide concave portions 31W. In FIG. 5, the narrow recess 31 </ b> N is formed below the upper bent portion 44 of the terminal. However, the present invention is not limited to this, and as shown in FIG. It may be formed. In this case, the comb teeth portion of the mold is disposed from above.

  Further, as seen in FIGS. 5 and 6A, a hole 31C penetrating in the connector width direction is formed immediately below the wide recess 31W and immediately above the overhang 32A. The hole 31C is located between the terminals 40 adjacent to each other in the terminal arrangement direction, but the width of the side of the hole 31C extends to the side edge of the terminal 40, and the movable housing When the mold is removed after the integral molding of 30, the plate surface and the side end surface of the side edge portion of the terminal 40 are exposed from the movable housing 30. The partition wall 31P between the hole portions 31C that borders the plurality of hole portions 31C arranged in the terminal arrangement direction has a mixture of thick and thin portions alternately in the connector width direction. A comb tooth portion M1-A3 in which a thin portion and a thick portion are mixed is formed (see FIG. 4B). Therefore, the mold has increased strength at the thick part. Due to the high strength of the mold, the deformation of the mold due to the molding pressure during molding is extremely small, and as a result, the accuracy of the housing is increased.

  Next, as shown in FIG. 2, the fixed housing 20 is a rectangular tube having a side wall 21 having an inner wall surface at the position of the outer straight portion 43 of the terminal 40 in the connector width direction, and the inner space is vertically arranged. It penetrates. The upper end of the side wall 21 is substantially at the same height as the lower surface of the overhanging portion 32 </ b> A of the movable housing 30, and the lower end is positioned slightly above the lower end of the column wall portion 33 of the movable housing 30. A gap is formed between the circuit board (not shown).

  The side wall 21 has an immersion space 21 </ b> A extending from a position immediately below the flange portion 22 formed at the upper end of the side wall 31 to the lower end on the inner wall surface and sunk in the connector width direction. The immersion space 21 </ b> A, together with the immersion space 33 </ b> A on the side of the column wall 33 of the movable housing 30, forms an accommodation space 10 </ b> A that houses the elastic portion 40 </ b> A of the terminal 20. Since the elastic portion 40A of the terminal 40 is accommodated in the accommodating space 10A, a part of the elastic portion 40A, that is, the lower half portion 41B of the inner straight portion 41 and the right half portion of the lower bent portion 45 are arranged in the connector width direction. Therefore, the movable side holding portion 31 of the movable housing 30 is overlapped. Further, the elastic portion of the terminal 40 is formed in the upper portion of the immersion space 21A immediately below the flange portion 32 of the side wall 31 of the fixed housing 20 having the upper surface at substantially the same height as the lower surface of the protruding portion 32A of the movable housing 30. The uppermost part of 40A, that is, the middle bent part 46 forming the top part is located. That is, a gap H is provided in the height direction between the lower surface of the overhanging portion 32 </ b> A of the movable housing 30 and the top portion of the elastic portion 40 </ b> A of the terminal 40. When the elastic portion 40A is housed in the housing space 10A in this way, the connection portion 48 of the terminal 40 extends from the gap between the lower end of the side wall 21 of the fixed housing 20 and the circuit board, and the circuit Connected to the surface of the board.

  In the connector 1 having the movable housing 30 and the terminals 40 formed in this way, after the terminals 40 and the movable housing 30 are integrally formed by integral molding, the fixed housing is fitted and assembled from above to the connector 1. To be completed. The manufacturing process will be described below with reference to FIG.

  First, after a flat plate of a metal plate is contoured, it is bent in the plate thickness direction to prepare the terminal 40 described above, and arranged in the next mold M.

  The mold M includes an upper mold M1 and a lower mold M2, and the upper mold M1 includes two outer molds M1-A and one inner mold M1-B.

  The outer mold M1-A is movable in the connector width direction (left and right lateral directions) in FIG. 4A, and the upper and lower narrow recesses 31W and 31N of the movable housing 30 shown in FIG. Below that, comb-shaped portions M1-A1, M1-A2, and M1-A3 respectively corresponding to the holes 31C are provided (see FIG. 4B), and further, the overhanging portion 32A of the movable housing 30 and the terminal 40 are provided. It is formed as a block body having a protrusion M1-A4 that enters from the lateral direction at a distance H between the top of the middle bent portion 44. The outer mold M1-A is located on the outer side with respect to the terminal 40 in the connector width direction, and at the time of molding, as seen in FIG. Abuts with the inner mold M1-B.

  The inner mold M1-B is movable up and down, and reaches the position of the intermediate wall 32 of the movable housing 30 below.

  The lower mold M2 is movable in the vertical direction, and is positioned between the lower half portions 41B of the inner straight portions 41 of the two terminals 40 in the connector width direction so as to form the column wall 33 of the movable housing 30. It has a vertical recess that is open at the top.

  The mold M thus formed, that is, the two outer molds M1-A of the upper mold M1, one inner mold M1-B, and the lower mold M2 are assembled and disposed, and the terminal 40 is disposed therein ( 4 (A)), after the molten resin is injected into the interior and the resin is cured, the outer mold M1-A is moved to the side, the inner mold M1-B is moved upward, and the lower mold M2 is moved downward. Move (see FIG. 4B). Thus, an integrally molded body of the terminal 40 and the movable housing 30 is obtained. Thereafter, the fixed housing 20 is fitted from above to the integrally molded body (see FIG. 4C). The fixed housing 20 holds the outer straight portion 43 by being fitted (press-fitted) into the corresponding groove 21 </ b> B from the outer straight portion 43 of the terminal 40.

  When the mold is integrally molded with the terminal 40 of the movable housing 30, the comb teeth M 1 -A 1 and M 1 -A 2 of the mold that enter the wide recess 31 W and the narrow recess 31 N are the plate thickness surfaces of the terminal 40. That is, the position of the terminals 40 in the arrangement direction is determined by abutting with the side end surfaces, and the comb teeth M1-A3 of the mold entering the holes 31C abut on the side end surfaces of the terminals 40 and also the plate surfaces of the side edges. Thus, not only the arrangement direction of the terminals 40 but also the position in the plate thickness direction is determined. Note that the positions of the terminals 40 in the arrangement direction are determined by the comb-tooth portions M1-A1 and M1-A2 that enter the wide recess portion 31W and the narrow recess portion 31N, and thus the comb-tooth portion M1- that enters the hole portion 31C. A3 may only contact the plate surface. Further, as described above, the contact on the plate thickness surface (side end surface) of the terminal and the contact on the plate surface may be performed in any of the recesses 31A and 31B or the hole 31C.

  The mating connector 2 to be fitted and connected to the connector 1 thus obtained is configured as follows.

  The mating connector 2 is connected to the connector 1 from above. The mating connector 2 is attached to another circuit board P2 positioned at right angles to the circuit board P1 to which the connector 1 is attached, as seen in FIGS. 1 (A) and 1 (B). The other circuit board P2 to which the mating connector 2 is attached may be positioned in parallel with the circuit board P1 attached to the connector 1.

  As shown in FIG. 2, the mating connector 2 has two types of terminals, that is, a first terminal 50 and a second terminal 60, and their contact portions are arranged to face each other. Both the first terminal 50 and the second terminal 60 are made while maintaining the plate surface of the metal plate.

  As shown in FIG. 2, the first terminal 50 includes a base 51 that extends in the lateral direction and is fixed and held at the upper end position of the housing 70 by a housing 70 described later, a contact arm 52 that extends downward from the base 51, A connecting arm 53 extending outward from the housing 70 in the direction, and a fixing arm portion 54 and a fixing projection 55 for strengthening the fixing to the housing 70 are provided extending downward from the base portion 51. Of the fixed arm 54 and the fixed protrusion 55, the fixed protrusion 55 is provided with a locking protrusion 55A on the outer edge, and when the first terminal 50 is press-fitted into the corresponding terminal groove of the housing 70, The outer edges of the fixed arm portion 54 and the fixed protrusion 55 are held by receiving a reaction force from the housing 70 during press-fitting, and the locking protrusion 55A bites into the housing 70, thereby preventing the removal. Yes.

  The contact arm 52 that is adjacent to the fixed arm 51 and extends downward has a tip that extends to the vicinity of the lower end of the housing 70 and has elasticity, and the tip is provided with a triangular contact 52A that faces outward. .

  The connecting arm 53 that extends rightward from the base 51 and protrudes out of the housing 70 has a bent portion whose tip is directed upward, and the bent portion serves as a connecting portion 53A, and its side edge (located on the right side). Side edges) serve for solder connection with other circuit boards.

  The second terminal 60 includes a base 61 that is held by the housing 70 at the lower right end position of the housing 70, and extends upward from the left part of the base 61. Further, the second terminal 60 is changed as a whole by changing the lateral direction and then the downward direction. The contact arm 62 has an inverted U-shape and has elasticity, a fixed arm portion 63 that extends upward from an intermediate position of the base portion 61, and a connection portion 64 that protrudes out of the housing 70 from the right end of the base portion 61.

  The contact arm 62 has a tip (lower end) portion positioned at a distance from the contact arm 52 of the first terminal 50 in the connector width direction, and extends to substantially the same position as the contact arm 52 in the vertical direction. Opposing to the contact portion 52A of the first terminal 50, the outer edge has a triangular contact portion 62A.

  The fixed arm portion 63 is provided with a locking projection 63A on the left edge thereof, and when the second terminal 60 is press-fitted into the corresponding terminal groove of the housing 70, the fixed arm portion 63 is counteracted from the housing 70 when press-fitted. While being held by force, the locking protrusion 63A bites into the housing 70, thereby preventing it from coming off.

  The contact arm 62 has elasticity that extends to the vicinity of the lower end of the housing 70, and a triangular contact portion 62 </ b> A facing outward is provided at the distal end.

  The connecting arm 64 that extends rightward from the base 51 and protrudes out of the housing 70 has a bent portion whose tip is directed downward, and the bent portion serves as a connecting portion 64A, and its side edge (located on the right side). Side edges) serve for solder connection with other circuit boards.

  As described above, the first terminal 50 and the second terminal 60 attached to the housing 70 have a pair of contact portions 52A and 62A, and a pair of contact portions provided on the terminal 40 of the connector 1 described above ( The upper half portion 41A is contact-connected, and the connection portions 53A and 63A of the first terminal 50 and the second terminal 60 make a pair to form a portion to be solder-connected to another circuit board.

  In the housing 70, one side wall 71 (on the left in FIG. 2) is provided in a vertically long range, and the other side wall 72 is provided in a short range in which upper and lower ends are cut out. Between the side walls 71 and 72 facing each other in the connector width direction, two intermediate walls 73 and 74 extending vertically are provided at intervals in the connector width direction. One intermediate wall 73 is located closer to the one side wall 71, and the other intermediate wall 74 is located closer to the other side wall 72. The one intermediate wall 73 extends from a position spaced from the upper end of the housing 70 to the vicinity of the lower end, and the other intermediate wall 74 is formed in a range spaced from the upper end side and the lower end side of the housing 70.

  Between the side wall 71 and the intermediate wall 73 in the connector width direction, a space for accommodating the fixed arm portion 54 and the contact arm portion 52 of the first terminal 50 is located above the intermediate walls 73 and 74 to the upper end of the housing 70. Between the intermediate walls 73 and 74 in the connector width direction, a space for accommodating the contact arm portion 62 of the second terminal 60, and the intermediate wall 74. A space for accommodating the base portion 61 of the second terminal 60 is formed between the housing and the lower end of the housing 70. The space that accommodates the contact arm portion 52 of the first terminal 50 and the space that accommodates the contact arm portion 62 of the second terminal 60 form a receiving portion 75 into which the connector 1 is fitted.

  In FIG. 2, the first terminal 50 is press-fitted from above and the second terminal 60 is press-fitted and assembled to the housing 70 thus formed. As for 60, the latching protrusion 63A bites into the housing 70, so that it is prevented from coming off.

  Hereinafter, based on FIG. 2 and FIG. 3 of the accompanying drawings, the usage point for the connector of the present embodiment will be described.

  First, the circuit board P1 to which the connector 1 is to be connected is solder-connected at the connection portion 48, and the mating connector is solder-connected to the other circuit board P2 to be connected at the connection portions 53A and 64A (circuit boards P1, P1). Refer to FIG. 1 for P2.

  Thereafter, as shown in FIG. 2, the mating terminal 2 is brought to a position immediately before the fitting above the connector 1 and is lowered as it is.

  The mating connector 2 is lowered to a predetermined position, and the fitting connection with the connector 1 is completed. In the state where the fitting connection is completed, as shown in FIG. 3, the connector 1 includes the movable side holding portion 31 of the movable housing 30 that holds the movable side held portion 40 </ b> B including the contact portion (upper half portion) 41 </ b> A of the terminal 40. Enters the receiving portion 75 of the mating connector 2, and the intermediate wall 73 of the mating connector 2 enters between both movable side holding portions 31 of the connector 1. Thus, the contact portion 52A of the first terminal 50 and the contact portion 62A of the second terminal 60 of the mating connector 2 are in elastic contact with the contact portion 41A of the terminal 40 of the connector 1.

  In the present invention, the elastic portion 40A of the terminal 40 of the connector 1 is not limited to a lateral S-shape as seen in FIG. 2, and the form can be variously modified. For example, the elastic part 40A can be a simple horizontal straight part as shown in FIG. 7A, or a slanted straight part as shown in FIG. 7B.

In the present invention, the connector 1 is mated and connected to the mating connector 2 in a direction perpendicular to the circuit board P1 to which the connector 1 is attached. However, the connector 1 is a so-called right angle connector, The connector 2 may be of a type that is fitted and connected from a direction parallel to the surface of the circuit board P1.

DESCRIPTION OF SYMBOLS 1 Connector 40 Terminal 2 Mating connection member (mating connector) 40A Elastic part 10 Housing 40B Movable side held part 20 Fixed housing 41A Contact part 21 Fixed side holding part 43 Fixed side held part 30 Movable housing 44 Bending part 31 Movable side holding Part 46 Top part 31C Hole

Claims (8)

Each of the plurality of arranged terminals is a contact provided at a position higher than the connection part for contact between a connection part for connection to the circuit board on one end side and a mating connection member fitted on the other end side. A circuit board electrical connector in which the housing holding the terminal has a movable housing movable with respect to the circuit board, and the mating connection member is fitted to the movable housing.
The terminal includes a movable side held portion including a contact portion held by the movable side holding portion of the movable housing, and an elastic portion that connects the connecting portion and the movable side held portion and is elastically displaced with respect to the circuit board. And
The elastic portion of the terminal has a top portion that forms the upper end of the elastic portion outside the movable-side held portion in the connector width direction, and is located at the terminal position in the terminal arrangement direction and above the top portion and the top portion. A gap is provided between the movable side holding part and
The terminal is a portion corresponding to the interval in the connector fitting direction, and at least a part of the plate surface of the terminal is exposed. Further, at least a side edge of the terminal at the movable side held portion. Part of it is exposed,
An electrical connector for a circuit board.   In addition to the movable housing, the housing also has a fixed housing. The fixed housing is attached to the circuit board and has a fixed side holding portion that holds a fixed side held portion formed in the vicinity of the terminal connection portion. The electrical connector for circuit boards according to claim 1.   The circuit board according to claim 1, wherein the elastic part of the terminal is positioned so that a part of the elastic part overlaps the movable side held part of the terminal in the connector width direction. Electrical connector.   The terminal is a portion corresponding to the distance between the top of the elastic portion and the movable side holding portion of the housing in the connector fitting direction, and at least a part of the peripheral surface including the side edge as well as the plate surface of the terminal. The electrical connector for circuit boards according to claim 1, wherein the electrical connector is exposed.   The terminal has a curved portion in the movable side held portion and a tip portion extending from the curved portion, and at least the tip portion of the curved portion and the tip portion is embedded in the movable housing. An electrical connector for a circuit board according to any one of claims 1 to 4.   The circuit board electrical connector according to claim 5, wherein the tip end portion is subjected to plastic deformation in the plate thickness direction.   In the movable housing, a hole that exposes the side edge of the terminal is formed in the connector width direction so as to penetrate in a range of a distance between the elastic portion and the movable side holding portion in the connector fitting direction. The electrical connector for circuit boards according to claim 1 or 2.   The movable housing has partition walls between adjacent holes in the terminal array direction, and the plurality of partition walls existing in the terminal array direction have a plurality of types of wall thicknesses in which the adjacent partition walls are different from each other in the connector width direction. An electrical connector for a circuit board according to any one of claims 1, 2, and 5 to 7.

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