TW201807902A - Limiting member of electrical connector for circuit board with the goal of miniaturization and increasing the strength and the limiting capability - Google Patents

Abstract

The present invention provides a limiting member of electrical connector for circuit board, with the goal of miniaturization and increasing the strength and the limiting capability. The electrical connector for circuit board comprises: a fixed housing (11), a movable housing (21), and plural terminals (30) arranged by being mounted across the fixed housing and the movable housing. Each terminal (30) comprises: a held part (34) on the fixed side held by a fixed housing; a held part (36) on the movable side held by a movable housing; and a middle elastic part (31) between the held part on the fixed side and the held part on the movable side. The limiting member (40) is integrally formed and held by the fixed housing and has a limiting part (41). The limiting part (41) is used to limit the moving quantity of movable housing in the direction away from the circuit board. The held part on the fixed side (34) of terminal (30) is integrally formed and held by the fixed housing (11), the held part on the movable side (36) is integrally formed and held by the movable housing (21).

Description

Limiter of electrical connector for circuit board

The present invention relates to a limiting member for an electrical connector for a circuit board.

When this type of connector is connected to the mating connector with the direction perpendicular to the surface of the circuit board as the connector fitting direction, the mating connector may be shifted from the normal position in a direction parallel to the surface of the circuit board. The so-called floating connector capable of absorbing the above-mentioned offset is widely used, and is disclosed in Patent Document 1, for example.

The floating connector of Patent Document 1 has a fixed housing (outer housing) having a quadrangular frame shape and fixed to a circuit substrate by using a bottom surface thereof, and is located in a quadrangular frame of the fixed housing and is capable of being fixed to the fixed housing. The movable movable case (inner case) has a plurality of terminals arranged in a state spanning the movable case and the fixed case. The outer casing is fixed to the circuit board through the terminal by soldering the connection portion of the terminal to the circuit board. The terminal is provided with a wave-shaped elastic portion in a middle portion of the terminal in a space between the movable casing and the fixed casing, and the above displacement is absorbed by the elastic displacement of the elastic portion.

The terminal of the connector of patent document 1 is formed integrally It is held by the fixed case and the movable case.

One end of the terminal is embedded in the movable case, and a contact portion for contacting the counterpart connector is fixed to the side of the movable case so as to be exposed on the side of the movable case. The other end side of the terminal is buried and held in a fixed case, and a front end of the terminal protrudes out of the fixed case to become a connection portion soldered to a circuit board.

In Patent Document 1, in this floating connector, in order to prevent the movable case (inner case) from being excessively moved upward by the friction between the terminals when the mating connector is pulled out, the fixed case (outer case) The body) is provided with a restricting member (restricting member) that can abut an upper surface of a part of the movable casing and restrict the upward movement of the movable casing.

The above-mentioned restricting member (restricting member) is formed by bending a metal plate in a thickness direction of the metal plate, and has a side surface in which both side portions of the fixed housing are sandwiched from above and below at an end portion in a terminal arrangement direction. The U-shaped cross section of the crotch and the fixing portion for fixing the restricting member to the circuit board utilize the lower surface of the upper plate among the upper plate and the lower plate of the crotch portion and the upper surface of a part of the movable housing. Restricted by abutment. In the fixed case, the restricting member is fitted to the side portion of the fixed case by sandwiching the side portion of the fixed case between the upper plate and the lower plate of the crotch portion.

[Patent Document 1] Japanese Patent Laid-Open No. 2004-063358

However, the restriction of Patent Document 1 is formed by the upper plate and the lower plate to form a horizontal U-shaped crotch portion, and the shape of the crotch portion is fitted to the corresponding portion of the fixed casing. It is complicated, and the above-mentioned upper plate and lower plate are located on the upper and lower surfaces of the corresponding portion of the fixed casing, which leads to an increase in the size of the connector in the vertical direction. In addition, the limitation of the movable member is performed by the upper plate of the crotch portion. Although the crotch portion is fitted to the corresponding portion of the fixed housing, when focusing on the upper plate, the upper plate is formed only on the upper surface of the corresponding portion. If the surface contact is strongly lifted by the movable member from below, the upper plate tends to float, and it is undeniable that the strength and the limiting ability are reduced. Furthermore, in Patent Document 1, although the terminal is held by being integrally formed with the fixed case and the movable case, the restrictor is fitted and mounted on the fixed case. That is, the mounting work is performed separately and the manufacturing workability is poor. In addition, the fitting direction is restricted, and accordingly, the shape of the restrictor is restricted, and as a result, an increase in the size of the restrictor is inevitable.

The present invention has been developed in view of the above-mentioned circumstances, and an object thereof is to provide a restricting member for an electrical connector for a circuit board, which can achieve miniaturization and improve strength and restricting ability.

The restricting member of the electrical connector for a circuit board of the present invention is used to limit the movable amount of a movable housing of the electrical connector for a circuit board. The electrical connector for a circuit board has a surface fixedly mounted on a surface of the circuit board. A fixed casing, a movable casing that is movable relative to the fixed casing, and a plurality of terminals arranged in a state spanning the fixed casing and the movable casing Each terminal has a fixed-side held portion held by the fixed case, a movable-side held portion held by the movable case, and a portion between the fixed-side held portion and the movable-side held portion. Intermediate elastic part.

The restricting member is characterized in that, in the present invention, the restricting member is held in the fixed case by integral molding and has a restricting portion for restricting the movable case from moving in a direction away from the circuit board. In other words, the fixed-side held portion is held by the fixed casing by integral molding, and the movable-side held portion is held by the movable casing by integral molding.

By adopting the restricting member of the present invention, when the movable portion of the movable casing is restricted by the restricting portion, the restricting portion is held by the fixed casing by integral molding, and the restricting portion is fixed by the fixed casing. It is firmly held so that the restraint capacity of the movable case becomes large. In addition, because the restraining member is held by the fixed housing, it does not need to be formed into a complicated shape and becomes simplistic. In addition, because the fixed portion is located within the wall thickness of the fixed housing, it helps the connector to move up and down. Miniaturization of direction. Furthermore, in the present invention, the terminal is held in a fixed case and a movable case by integral molding, and the restricting member can also be held by integral molding, and the manufacturing steps are simplified.

In the present invention, the form of the restricting member may be configured to include a restricting portion that forms a face-to-face relationship with an upper surface of a portion of the movable housing, and a plurality of fixed leg portions extending from the restricting portion and fixedly connected to the circuit board. . In this form, since a plurality of fixed feet are provided on the restricting member, the force for holding the restricting member is increased, and the restricting ability of the movable casing is further increased. Get bigger. Furthermore, electrical connection with the circuit board can be achieved through the fixed legs.

According to the present invention, the restricting portion of the restricting member may be formed in a flat band shape extending in a connector width direction perpendicular to the terminal arrangement direction, and a plurality of fixed leg portions may be provided at both ends of the restricting portion in the connector width direction. Location and location of the middle. In this way, since the middle portion of the flat-belt-shaped restricting portion is also provided with a fixed leg portion, the force for holding the restricting member is increased without increasing the size in the height direction of the connector, and the restricting portion is subject to movement from the movable portion. The strength of the casing is still not easy to flex and the strength is increased.

According to the present invention, as described above, a part of the restricting member for restricting the movable amount of the movable housing upward from the electrical connector for a floating circuit board is held by being integrally formed with the fixed housing. The one-piece terminal can also be integrally molded and held while retaining the above-mentioned restricting member, so the workability during manufacturing is improved, and the held portion for the one-piece retaining of the restrictive member is located within the wall thickness of the fixed housing, because it is not It is located outside the fixed housing, and it is possible to reduce the size of the connector in the up-down direction. In addition, because the held portion is buried in the wall thickness of the fixed casing, even if the restricting portion is subjected to a large force from above the movable casing, it will not be lifted from the fixed casing and held firmly. The restriction on the movable case is improved. In addition, since the restriction member is not fitted to the fixed case as in the past, the size of the restriction member in this direction can be reduced without causing an increase in size or limitation of the mounting direction.

11‧‧‧Fixed case

36‧‧‧ movable side held part

21‧‧‧ movable casing

40‧‧‧Restrictions

30‧‧‧terminal

41‧‧‧Restricted Department

31‧‧‧Intermediate elastic part

42‧‧‧ fixed feet

34‧‧‧ fixed side held part

FIG. 1 is a perspective view showing an electrical connector (socket connector) for a circuit board and its counterpart connector (plug connector) according to an embodiment of the present invention.

FIG. 2 is a cutaway perspective view showing the inside of the socket connector of FIG. 1 at the same time.

FIG. 3 is a perspective view of the socket connector of FIG. 2 with an illustration (not shown) of the fixed housing omitted.

FIG. 4 is a perspective view showing only the terminal and the restrictor by omitting the movable case from FIG. 3.

FIG. 5 is a cross-sectional view of the two connectors of FIG. 1 at the terminal positions, (A) shows the connector before fitting, and (B) shows the connector after fitting.

Fig. 6 is a view of the socket connector of Fig. 2 viewed from above. (A) shows when the movable casing is in a regular position, and (B) shows when the movable casing is in a floating position.

FIG. 7 shows steps (A) to (D) of the steps for forming a body of the restricting member.

Hereinafter, embodiments of the present invention will be described based on the drawings.

FIG. 1 shows an electrical connection for a circuit board according to this embodiment. A perspective view of the appearance of the socket connector 1 of the connector before the mating connection of the plug connector 2 and the plug connector 2 for mating connection therewith.

In FIG. 1, the socket connector 1 includes a socket housing 10 made of an electrically insulating material, a terminal 30 made of a metal plate held by the socket housing 10, and a stopper 40.

The socket housing 10 includes a fixed housing 11 having a substantially rectangular frame shape when viewed from above when the socket connector 1 is arranged on a circuit board (not shown), and is formed with the fixed housing 11. The movable casings 21 of different individuals and located in the quadrangular frame space of the fixed casing 11 described above. A space between the fixed casing 11 and the movable casing 21 is a receiving space 1A for receiving the plug connector 2. The terminal 30 spans the fixed casing 11 and the movable casing 21 described above, and a part of the terminal 30 is held by the fixed casing 11 and another part is held by the movable casing 21. The restricting member 40 is held by the fixed case 11. The socket connector 1 will be described in detail later with reference to the drawings below FIG. 2.

On the other hand, as shown in FIG. 1, the plug connector 2 to be fitted and connected to the socket connector 1 includes a plug housing 51 made of an electrically insulating material, and a metal held by the plug housing 51. The terminal 60 made of a plate and the plug housing 51 are formed in a quadrangular block shape with an outer shape fitted into the receiving space 1A of the socket connector 1, and are formed on the lower surface side (not shown in FIG. 1) of FIG. 1. There is a recessed portion 51A for allowing the movable housing 21 of the socket connector 2 to enter (see FIG. 5 (A)). The plug connector 2 extends along the longitudinal direction of the connector and in a short-side direction perpendicular to the long-side direction of the peripheral wall of the recessed portion 51A for forming the plug housing 51. The two opposite side walls 52 respectively hold a plurality of terminals 60. The terminals 60 are arranged along the long-side direction, and are symmetrically opposed to each other in the short-side direction. The terminal 60 is held by the plug housing 51 by being integrally formed with the plug housing 51.

As shown in FIG. 5 (A), the terminal 60 is formed by bending a metal strip-shaped body in the thickness direction, and one end portion 61 bent in a J-shape is formed in an opening portion of a peripheral wall of the plug housing 51. The other end portion is buried in the side wall 52 and protrudes from the base portion of the side wall 52 to the outside of the plug housing 51 to form a laterally extending connection portion 62. The middle portion of the terminal 60 is bent into an L shape, and includes a longitudinal portion held by the side wall 52 and exposed from the side wall 52, and a transverse portion bent from the longitudinal portion. The longitudinal portion is a contact portion 63. A transition portion from the vertical portion to the horizontal portion is buried in the plug housing 51 to form a held portion 64 held by the plug housing 51.

Next, return to the socket connector 1 and describe the socket connector 1 in more detail with reference to FIGS. 2 to 5.

As shown in FIG. 2, on the fixed casing 11 and the movable casing 21 of the socket connector 1, on the inner surface of the side wall 12 of the fixed casing 11 for forming the receiving space 1A and the side wall of the movable casing 21, The terminal grooves 13 and the terminal grooves 22 facing each other are formed in a row. In the movable case 21, the lower end of the groove wall 23 formed between the terminal grooves 22 of the movable case 21 is extended toward the fixed case 11 side to form a rib portion 23A. All the ribs 23A located at the lower ends of the plurality of groove walls 23 are located at the bottom of the receiving space 1A of the socket connector 1, thereby forming a bottom holding portion 24 extending in the longitudinal direction of the movable housing 21. In the arrangement direction of the terminal grooves 22 of the movable housing 21 described above, At the end, a plate-shaped restricted portion 25 (see FIG. 3) having a stepped shape protruding from a lower portion of the movable case 21 toward the arrangement direction of the terminal grooves 22 is provided.

On the other hand, in the present embodiment, the terminal 30 of the socket connector 1 is a form of a so-called bent terminal by bending a metal strip body in a thickness direction thereof. In the present invention, the terminal is not limited to a curved terminal, and may be a form in which a metal plate is punched in the thickness direction, that is, a so-called punched terminal.

As shown in FIG. 2, FIG. 4, and FIG. 5 (A), the terminal 30 has a generally waveform having two inverted U-shaped portions as a whole, and is located in an inverted U-shape on one side of the side wall 12 of the fixed housing 11. The portion constitutes the intermediate elastic portion 31 and is housed in a terminal groove 13 formed in the side wall 12. In addition, the other U-shaped portion on the other side of the movable casing 21 forms a contact arm portion 32 having two arm portions 32A and 32B. Most of the two arm portions 32A and 32B are accommodated in the terminal groove 22 of the movable housing 21 except for the base portions of the arm portions 32A and 32B. The upper portions of the arm portions 32A and 32B are formed by contact portions. 33 connected. The contact portion 33 is convexly formed so as to protrude outside the terminal groove 22.

The intermediate elastic portion 31 of the terminal 30 extends obliquely from the lower end of the arm portion located on the inner side of the terminal groove 13 to become a fixed-side held portion 34 which is buried by integral molding. It is held on the lower part of the side wall 12 of the fixed casing 11, and one end side of the terminal 30 extends from the fixed side held portion 34 to the outside of the side wall 12 and along the lower surface of the side wall 12. A connection portion 35 that is soldered to the circuit board.

Among the two arm portions 32A, 32B of the contact arm portion 32, The base portion 32A-1 formed at the lower end portion of the arm portion 32A on the inner side of the terminal groove 22 is bent into an L shape, and is buried and held in the lower portion of the movable case 21 by integral molding. On the other hand, the base portion 32B-1 constituting the lower end portion of the arm portion 32B on the opening side of the terminal groove 22 is bent in an L-shape and passes through the bottom holding portion 24 of the movable casing, and is two of the middle elastic portion 31 Among the arm portions, the lower ends of the arm portions on the opening side of the terminal groove 13 are connected. The base portion 32B-1 of the arm portion 32B is a movable-side held portion 36, and is held by being integrally formed with the bottom holding portion 24.

As described above, the two arm portions 32A, 32B of the above-mentioned terminal 30 which are connected by the contact portion 33 and have an inverted U-shaped contact arm portion 32, and the base portions 32A-1, 32B-1 are connected with the movable case. The body 21 is integrally formed and held, and the inverted U-shaped portion above the base portions 32A-1, 32B-1 is elastically displaceable without any restriction. Of course, the intermediate elastic portion 31 is elastically displaceable without any restriction.

The restricting member 40 made of a metal plate held by the fixed case 11 is as shown in FIG. 3 in which the movable case 21, the terminal 30, and the restricting member 40 are shown as shown in FIG. A flat band-shaped restricting portion 41 on the upper surface of the aforementioned restricted portion 25 and extending in the connector width direction, and a fixed leg portion 42 extending from the restricting portion 41. The fixed leg portions 42 are provided at both ends and side portions of the restricting portion 41, and each of the fixed leg portions 42 is bent in a crank shape downward, and the lower end portion is fixed to the corresponding portion of the circuit board by soldering.

In such a restricting member 40, among the restricting portions 41 facing the restricted portion 25 of the movable housing 21, the fixed leg portion 42 is arranged. The edge portion and the base portion of the fixed leg portion 42 are buried in the fixed casing 11 by integral molding, and are held by integral molding with the fixed casing 11. In other words, the portion other than the portion buried and held by the fixed case 11 is exposed.

A part of the restricting member 40 is held by the movable casing 21 by integral molding. Compared with the holding by press-fitting, it is not necessary to consider the part required for the pushing-in of the restricting member, so space can be saved. In addition, the pressing direction is not restricted, and the shape of the restricting member can be simplified. This also contributes to space saving.

The socket connector 1 in this form is used in the following manner. First, the socket connector 1 is soldered to the corresponding circuit portion of the circuit board (not shown) with the connection portion 35 of the terminal 30 thereof, and the fixing leg portion 42 of the restricting member 40 is soldered to the corresponding portion of the circuit substrate.

On the other hand, the plug connector 2 is also the same as the socket connector 1, and the contact portion 62 of the terminal 60 of the plug connector 2 is soldered to a corresponding circuit portion of another circuit board (not shown).

Then, as shown in FIG. 1 and FIG. 5, the plug connector 2 mounted on the other circuit board is opened in a posture where the other circuit board is positioned upward, that is, a posture in which the recessed portion 51A of the plug connector 2 is opened downward. It is arranged directly above the socket connector 1 mounted on the circuit board, and is lowered as it is.

When the plug connector 2 is lowered, the movable housing 21 of the socket connector 1 enters the recessed portion 51A of the plug connector 2 together with the contact arm portion 32 of the terminal 30, and receives the plug connector in the receiving space 1A of the socket connector 1. Connector 2 (see Fig. 5 (B)).

As shown in FIG. 5 (B), when the mating of the plug connector 2 progresses to a predetermined depth such that the lower end thereof abuts against the bottom holding portion 24 of the socket connector 1, the two The terminal 60 contacts the contact portion 33 of the terminal 30 in the second row of the socket connector 1 from the inside in the connector width direction. The contact portion 33 is located on the upper portion of the contact arm portion 32 composed of two elastic arm portions 32A and 32B, and is connected to the plug by using the elastic pressure caused by the elastic bending displacement of the two arm portions 32A and 32B. The contact portion 62 of the terminal 60 of the device makes contact.

Here, for example, when the plug connector 2 and the socket connector 1 are fitted to the socket connector 1 in a position shifted from a predetermined position in the left-right direction, the socket connector 1 is formed according to the offset amount. The middle elastic portion 31 of one of the two terminals 30 is elastically displaced in such a manner that the two legs constituting the inverted U shape are opened, and the middle elastic portion of the other terminal is closed by the two legs constituting the inverted U shape. The method performs elastic displacement, thereby enabling the movement of the plug connector 2, that is, so-called floating.

The above floating state can be clearly understood from Figs. 6 (A) and (B). 6 (A) and 6 (B) are views of the connector 1 viewed from above. FIG. 6 (A) shows a case where the movable housing 21 is in a regular position with respect to the fixed housing 11 and FIG. 6 (B) shows the movable housing. 21 For the case where the fixed housing 11 is in the floating position. In FIG. 6 (A), the movable casing 21 is in a symmetrical regular position that is not shifted in the vertical and left directions with respect to the fixed casing 11. In this regular position, as shown in the upper and lower parts of FIG. 6 (A), the gap δ between the movable casing 21 and the fixed casing 11 is formed equally, and the movable casing The restricted portion 25 around 21 is restricted by the restricting portion 41 of the restricting member 40 with the same area. Regarding this point, it can be clearly understood that the restricted portion 25 that does not contact the restricting portion 41 is represented by the same area on the left and right when viewed from above.

On the other hand, in FIG. 6 (B) in the floating state, the movable casing 21 moves obliquely upward and rightward relative to the fixed casing 11. That is, the upper gap δ in FIG. 6 (A) disappears, and the lower gap increases. Furthermore, in the left-right direction, the restricted portion 25 on the right is restricted by the restricting portion 41 in a state in which it is in contact with the restricting portion 41 compared to the restricted portion 25 on the left. In other words, the unrestricted area of the left restricted portion 25 is smaller than the state of FIG. 6 (A). This floating is made possible by the elastic displacement of the elastic portion 31 of the terminal 30 as shown in FIG. 6 (B).

The terminal 30 of the above-mentioned socket connector 1 can be fitted with two contact arms, regardless of whether the plug connector 2 is fitted in a regular position or in an offset position. The bases of the parts 32A and 32B are firmly held by being integrally formed with the movable housing 21, and because they extend sufficiently long from the base, they can be elastically connected to the terminals 60 of the plug connector 2. The contact pressure generated by the displacement is ensured to be sufficiently large.

In this way, the terminal 30 of the socket connector 1 is in contact with the terminal 60 of the plug connector 2 with a large contact pressure by using the contact portion 33 thereof. Therefore, when the plug connector 2 is to be pulled out, the socket connector 1 is in the above contact. The portion 33 has a large frictional force acting on the pull-out direction, and the movable housing 21 tends to move upward due to the acting force to increase the movable amount.

In the present embodiment, the restricting member 40 is held by the fixed case 11, and the restricting portion 41 of the restricting member 40 faces the upper surface of the restricted portion 25 of the movable case 21. Therefore, when the plug connector 2 is pulled out, even if the movable housing 21 is pulled upward by the frictional force of the contact portion 33 of the terminal 30, the restricted portion 25 abuts against the restricted portion 41 and the upper portion Movement is restricted. The restricting portion 41 is in contact with the upper surface of the restricted portion 25 from the beginning before being pulled out from the plug connector 2.

The restricting member 40 is firmly held by the fixed housing 11 by integral molding. The restricting member 40 itself is also fixed to the circuit board by soldering with a plurality of fixing leg portions 42. Therefore, even if the restricting member 41 receives The upward force from the movable casing 21 can still limit the amount of upward movement of the movable casing 21 with sufficient strength.

Next, the method of integrally forming the restricting member 40 and the fixed casing 11 of this embodiment will be described with reference to FIG. 7. FIG. 7 is a partial cross-sectional view of the restricting member 40 and the upper mold M1 and the lower mold M2 for molding, which are two fixing arms extending the restricting member 40 of FIG. 4 from the side edge of the restricting portion 41 The position between the parts 42 cuts the restricting part 41 with a surface extending in the terminal arrangement direction.

In FIG. 7 (A), the upper mold M1 is formed with a space M1-A for forming an end wall of the fixed case 11, a space M1-B for forming the movable case 21, and The segment-shaped portion M1-C which is located on the lower surface of the wall between the space M1-A and the space M1-B and is used to receive the restriction portion 41 of the restriction member 40. On the other hand, the lower mold M2 has a shallow concave space for molding the bottom of the end wall of the fixed casing. M2-A, a space M2-B for forming the bottom of the movable housing 21 including the restricted portion 25, and a protrusion M2-C; the protrusion M2-C is used for connecting with a portion of the above-mentioned restricted portion 41. The surfaces abut, so that the above-mentioned space M1-A and space M2-A become one closed room, and the space M1-B and space M2-B become another closed room.

Between such an upper mold M1 and a lower mold M2, the restricting member 40 is first arranged as shown in FIG. 7 (A), and then as shown in FIG. 7 (B), the restricting portion 41 of the restricting member 40 is arranged. It arrange | positions in the state of the space M1-C of the upper mold M1, and the protrusion M2-C of the lower mold contacts the lower surface of the restriction part 41. In this state, the upper mold M1 and the lower mold M2 form a closed molding space capable of being molded, and the above-mentioned space M1-A of the upper mold M1 and the space M2-A of the lower mold M2 form a closed chamber for supply. For forming the end wall of the fixed casing 11, the above-mentioned space M1-B of the upper mold M1 and the space M2-B of the lower mold M2 form another closed chamber for forming the movable casing 21. In this state, as shown in FIG. 7 (C), molten resin is injected into the molding space to perform molding. After the resin is cured, the upper mold M1 and the lower mold M2 are separated and removed, as shown in FIG. 7 (D). A molded body of one of the fixed case 11 and the movable case 21 and the restrictor 40 is obtained.

In the state shown in FIG. 7 (D), the restricting member 40 is embedded in the fixed case 11 between the restricting portion 41 and the fixing portion 42. Therefore, the restricting member 40 is firmly held by the fixed case 11. On the other hand, the movable case 21 is only in surface contact with the lower surface of the restricting portion 41 and can be easily peeled from the restricting portion 41 by applying only a slight external force. In this manner, the movable case 21 is movable with respect to the restricting member 40.

21‧‧‧ movable casing

22‧‧‧Terminal Slot

25‧‧‧ Restricted

30‧‧‧terminal

40‧‧‧Restrictions

41‧‧‧Restricted Department

42‧‧‧ fixed feet

Claims (3)

A limiting member for an electrical connector for a circuit substrate is used to limit the amount of movement of a movable housing of the electrical connector for a circuit substrate. The electrical connector for a circuit substrate has a fixing fixed to a surface of the circuit substrate. A casing, a movable casing that is movable relative to the fixed casing, and a plurality of terminals arranged in a state spanning the fixed casing and the movable casing, and each terminal has: The fixed-side held portion, the movable-side held portion held by the movable housing, and the intermediate elastic portion located between the fixed-side held portion and the movable-side held portion are characterized in that the restricting member is integrated by Formed and held in the fixed case and having a restricting portion for restricting the movable amount of the movable case in a direction away from the circuit board, and the fixed-side held portion is fixed to the case by integral molding The held portion to be held on the movable side is held by the movable case by integral molding. The restricting member for an electrical connector for a circuit board according to claim 1, comprising: a restricting portion that forms a face-to-face relationship with an upper surface of a portion of the movable case; and a plurality of extending portions extending from the restricting portion and fixedly connected to the circuit board. Fixed feet. The restricting member for an electrical connector for a circuit board according to claim 2, wherein: The restricting portion of the restricting member has a flat band shape extending in the connector width direction perpendicular to the terminal arrangement direction. A plurality of fixed leg portions are provided at the positions of both ends of the restricting portion and the position of the middle portion in the connector width direction. .