Board connector

Abstract

To avoid a deterioration of reliability in a connection function of a terminal fitting.SOLUTION: A board connector A comprises: a housing 10 having a terminal housing chamber 14; a first terminal fitting 40; a second terminal fitting 55; and a front member 30 that is attached to the housing 10. In a front surface 10F of the housing 10, an insertion port 15 for inserting the first terminal fitting 40 and the second terminal fitting 55 into the terminal housing chamber 14 is opened. The front member 30 is attached to the housing 10 in a state of coating the insertion port 15. The housing 10 includes a blocking part 16 that blocks a rear end of the terminal housing chamber 14. In the blocking part 16, a penetration hole 17 of which an open area is smaller than the insertion port 15 is formed. The first terminal fitting 40 includes: a terminal main body part 41 that is housed in the terminal housing chamber 14; and a first substrate connection part 47 that is inserted into the penetration hole 17. The second terminal fitting 55 includes: a terminal main body part 41; and a second substrate connection part 56 inserted into the penetration hole 17.SELECTED DRAWING: Figure 3

Description

[Technical field]

[0001] The present disclosure relates to a board connector. [Background technology]

[0002] Patent Document 1 discloses a connector having a housing and multiple plug terminals, which is mounted on a circuit board. A plurality of spaces partitioned by walls are formed inside the housing. The plug terminal is a single component having a main body accommodated in the space, a leg extending rearward from the main body, and a mounting piece connected to the leg and mounted on a cable. The main body has a box shape with a U-shaped cross section, and a contact piece that elastically contacts the relay terminal is disposed at the front end of the main body. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2019-192612 A Summary of the Invention [Problem to be solved by the invention]

[0004] The rear end of the space is open as an insertion port for inserting the main body of the plug terminal. The main body has a U-shaped cross section and is open at the rear end. Therefore, if a foreign object enters the space from the insertion port, there is a concern that the foreign object will enter the inside of the main body of the plug terminal and adhere to the contact piece. If a foreign object adheres to the contact piece, there is a risk that it will interfere with the contact between the intermediate terminal and the terminal metal fitting.

[0005] The board connector of the present disclosure has been completed in light of the above circumstances, and aims to avoid any decrease in the reliability of the connection function of the terminal fittings. [Means for solving the problem]

[0006] The board connector of the present disclosure comprises: a housing having a terminal receiving chamber; A terminal metal fitting attached to the housing; a front member attached to the housing, The housing has an insertion opening at a front surface thereof for inserting the terminal fitting into the terminal accommodating chamber, the front member is attached to the housing in a state of covering the insertion opening, the housing has a closing portion that closes a rear end of the terminal accommodating chamber, a through hole having an opening area smaller than that of the insertion opening is formed in the blocking portion; The terminal fitting has a terminal main body portion that is accommodated in the terminal accommodating chamber, a resilient contact piece provided on the terminal main body portion, and a board connection portion that extends rearward from the terminal main body portion and is inserted into the through hole. Effect of the Invention

[0007] According to the present disclosure, it is possible to avoid a decrease in the reliability of the connection function of the terminal fittings. [Brief description of the drawings]

[0008] [Figure 1] FIG. 1 is a perspective view of a board connector according to a first embodiment, viewed obliquely from above and from the front. [Diagram 2] FIG. 2 is a perspective view of the board connector as viewed obliquely from above and behind. [Diagram 3] FIG. 3 is a side cross-sectional view of the board connector. [Figure 4] FIG. 4 is a side cross-sectional view showing a state in which the first terminal fittings and the second terminal fittings are attached to the housing during the process of assembling the board connector. [Diagram 5] FIG. 5 is a perspective view of the housing as viewed obliquely from above and from the front. [Figure 6] FIG. 6 is a perspective view of the front member as viewed obliquely from above and in front. [Figure 7] FIG. 7 is a perspective view of the front member as viewed obliquely from above and behind. [Figure 8]FIG. 8 is a perspective view of the first terminal fitting as viewed obliquely from above and behind. [Figure 9] FIG. 9 is a perspective view of the second terminal fitting as viewed obliquely from above and behind. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] [Description of the embodiments of the present disclosure] First, embodiments of the present disclosure will be listed and described. Any combination of the following embodiments without causing any contradiction is also included in the embodiment for carrying out the present invention. The board connector of the present disclosure comprises: (1) A terminal receiving device includes a housing having a terminal receiving chamber, a terminal metal fitting attached to the housing, and a front member attached to the housing, and an insertion opening for inserting the terminal metal fitting into the terminal receiving chamber is opened on the front surface of the housing, and the front member is attached to the housing in a state of covering the insertion opening, and the housing has a blocking portion that blocks the rear end of the terminal receiving chamber, and the blocking portion is formed with a through hole having an opening area smaller than the insertion opening, and the terminal metal fitting has a terminal body portion that is received in the terminal receiving chamber, a resilient contact piece provided on the terminal body portion, and a board connection portion that extends rearward from the terminal body portion and is inserted into the through hole. According to the configuration of the present disclosure, the rear end of the terminal receiving chamber is blocked by the blocking portion. Since the through hole formed in the blocking portion has an opening area smaller than the insertion opening, the gap between the through hole and the board connection portion is also small. This makes it possible to suppress the intrusion of foreign matter into the terminal receiving chamber from the rear of the housing and prevent the adhesion of foreign matter to the resilient contact piece. Therefore, it is possible to avoid a decrease in the reliability of the connection function of the terminal metal fitting.

[0010] (2) It is preferable that the terminal body has a rectangular cylindrical shape with both front and rear ends open, the board connection portion is connected flush with the rear end of any one of the four plate portions constituting the terminal body, and the inner surface of the terminal accommodating chamber and the inner surface of the through hole form a flush, continuous sliding surface. With this configuration, the board connection portion inserted into the terminal accommodating chamber slides against the sliding surface and is smoothly inserted into the through hole.

[0011] (3) In (2), it is preferable that, of the four plate parts constituting the terminal body, the plate part opposite to the sliding contact surface side has a press-in protrusion formed thereon for pressing the inner wall part of the terminal accommodating chamber. According to this configuration, in the process of inserting the terminal fitting into the terminal accommodating chamber, the press-in protrusion presses the inner wall part of the terminal accommodating chamber, and the reaction force presses the terminal body part and the board connecting part against the sliding contact surface. This allows the board connecting part to be reliably inserted into the through hole.

[0012] (4) In any of (1) to (3), a tapered guide surface is preferably formed on the opening edge of the through hole on the front surface of the blocking portion to guide the rear end of the board connection portion into the through hole. With this configuration, the board connection portion can be reliably inserted into the through hole.

[0013] (5) In (1) to (3), it is preferable that the front member has a front wall portion facing the front end portion of the terminal body portion from the front, a pair of side wall portions extending rearward from both widthwise ends of the front wall portion, and a pair of bottom wall portions connected to the front wall portion and the pair of side wall portions, and the front member is engaged with the housing at the pair of side wall portions and the pair of bottom wall portions. According to this configuration, the widthwise ends of the front member are unlikely to deform because the front wall portion, the side wall portions, and the bottom wall portions are connected. Therefore, the front member can be reliably attached to the housing.

[0014] [Details of the embodiment of the present disclosure] [Example 1] A board connector A according to a first embodiment of the present disclosure will be described with reference to Figs. 1 to 9. The present invention is not limited to these examples, but is defined by the claims, and includes all modifications within the meaning and scope equivalent to the claims. In this first embodiment, the F direction in Figs. 1 to 9 is defined as the front with respect to the front-rear direction. The H direction in Figs. 1 to 9 is defined as the up-down direction. The R direction in Figs. 1, 2, and 5 to 9 is defined as the right with respect to the left-right direction.

[0015] The board connector A of the present embodiment 1 is a connector mounted on an FPC 60 (Flexible Printed Circuits), which is a type of circuit board. The area of ​​the FPC 60 where the board connector A is mounted is strengthened by a reinforcing plate 62 to suppress bending deformation. In the present embodiment 1, the mounting surface 61 of the FPC 60 is arranged horizontally facing upward.

[0016] The board connector A is constructed by assembling a synthetic resin housing 10, a synthetic resin front member 30, a plurality of first terminal fittings 40, and a plurality of second terminal fittings 55. The housing 10 is a single component having a terminal accommodating portion 11 and a pair of protective walls 12. The pair of protective walls 12 are portions extending rearward from both left and right edges of the rear surface of the terminal accommodating portion 11. The housing 10 is adapted to be fixed to a mounting surface 61 of an FPC 60 via pegs 13.

[0017] A plurality of terminal accommodating chambers 14 are formed within the terminal accommodating portion 11. The terminal accommodating chambers 14 are elongated spaces in the front-to-rear direction, and are divided into two levels, upper and lower, arranged side by side in the left-to-right direction. The cross-sectional shape of the terminal accommodating chambers 14 when cut perpendicularly to the front-to-rear direction is rectangular. The front ends of the terminal accommodating chambers 14 open as insertion openings 15 on the front surface 10F of the housing 10 (terminal accommodating portion 11). The opening shape of the insertion opening 15 on the front surface 10F of the housing 10 (terminal accommodating portion 11) is rectangular.

[0018] A wall-shaped blocking portion 16 is formed at the rear end of the terminal accommodating portion 11. The blocking portion 16 constitutes the entire area of ​​the rear surface of the terminal accommodating chambers 14 and blocks the rear ends of all the terminal accommodating chambers 14. In detail, the entire area of ​​the rear end of the terminal accommodating chambers 14 except for the lower end edge portion is blocked by the blocking portion 16. The blocking portion 16 has a plurality of through holes 17 that individually communicate with the rear ends of the terminal accommodating chambers 14. The through holes 17 are slit-shaped elongated in the left-right direction. The opening area of ​​the through holes 17 on the rear surface of the housing 10 (blocking portion 16) is smaller than the opening area of ​​the terminal accommodating chambers 14 and the insertion opening 15 on the front surface 10F of the housing 10. In a rear view of the housing 10 seen from the rear, the through holes 17 are located at the lower end edge portion of the terminal accommodating chambers 14. The area of ​​the rear end of the terminal accommodating chambers 14 that is blocked by the blocking portion 16 is the area other than the area where the through holes 17 are formed.

[0019] The upper surface of through hole 17 is lower than the upper surface of terminal accommodating chamber 14. The lower surface of through hole 17 is at the same height as the lower surface of terminal accommodating chamber 14. The lower surface of through hole 17 is flush with the lower surface of terminal accommodating chamber 14. The inner surface (lower surface) of terminal accommodating chamber 14 and the inner surface (lower surface) of through hole 17 form a sliding surface 18 consisting of a flush, continuous flat surface. A tapered guide surface 19 is formed at the upper edge of the opening edge of through hole 17 on the front surface (the surface facing terminal accommodating chamber 14) of blocking portion 16, which is an upper surface of the opening edge of through hole 17, and is inclined so as to become higher toward the front.

[0020] A pair of left and right mating recesses 20 and a pair of left and right guide ribs 21 are formed on both left and right outer surfaces of the terminal accommodating portion 11. The pair of mating recesses 20 are shallowly recessed portions of the outer surface of the terminal accommodating portion 11. The pair of guide ribs 21 are portions that extend linearly forward from the rear end edge of the mating recess 20. A first locking protrusion 22 is formed in each mating recess 20. A pair of left and right second locking protrusions 23 are formed on the bottom surface of the terminal accommodating portion 11.

[0021] The front member 30 is a single part having a front wall portion 31, a pair of left and right side wall portions 32, and a pair of left and right bottom wall portions 33. The front wall portion 31 is a portion whose wall thickness direction faces the front-rear direction. The front wall portion 31 is formed with a plurality of connection holes 34 penetrating the front wall portion 31 in the front-rear direction. The plurality of connection holes 34 are arranged so as to individually communicate with the plurality of terminal accommodating chambers 14. In a front view of the front member 30 seen from the front, the opening area of ​​the connection holes 34 is smaller than the opening area of ​​the terminal accommodating chambers 14 (insertion opening 15) on the front surface 10F of the housing 10. The connection holes 34 are adapted to receive tabs of mating terminals (not shown) inserted from the front of the housing 10.

[0022] The pair of left and right side wall portions 32 are portions that extend backward in a cantilever shape from both left and right side edges of the front wall portion 31 with the wall thickness direction facing the left and right direction. The side wall portions 32 are elastically deformable so as to tilt in the left and right direction. A first lock portion 35 and a guide groove 37 are formed at the rear end of each side wall portion 32. The pair of bottom wall portions 33 are portions that extend backward in a cantilever shape from both left and right ends of the lower edge of the front wall portion 31 with the wall thickness direction facing the up and down direction. One of the left and right side edge portions of the bottom wall portion 33 is connected at a right angle to the lower edge portion of the side wall portion 32. The bottom wall portion 33 is elastically deformable so as to tilt in the up and down direction. A second lock portion 36 is formed at the rear end of the bottom wall portion 33.

[0023] The first terminal fitting 40 is a single component formed by bending, hammering, etc., a piece of metal plate material punched out to a predetermined shape. The first terminal fitting 40 is a female terminal having a terminal body portion 41 that is elongated in the front-rear direction and a first board connecting portion 47 that extends rearward from the rear end of the terminal body portion 41.

[0024] The terminal body 41 is generally in the shape of a square tube with both front and rear ends open. The terminal body 41 has a lower plate 42, a pair of left and right side plate parts 43, and an upper plate part 44. The lower plate part 42 is a part that is elongated in the front-rear direction with the plate thickness direction facing the up-down direction. The pair of left and right side plate parts 43 are parts that extend upward from both left and right side edges of the lower plate part 42. The upper plate part 44 is a part that extends parallel to the lower plate part 42 from the upper end edge of the right side plate part 43. An elastic contact piece 45 is provided inside the terminal body 41. The elastic contact piece 45 elastically contacts the tab of the mating terminal (not shown) inserted into the terminal body part 41 from the front of the first terminal fitting 40. A press-fit protrusion 46 is formed on the upper plate part 44. The press-fit protrusion 46 is a part that is formed by hammering a part of the upper plate part 44 upward. The press-fit projection 46 is disposed at a position rearward of the center of the upper plate portion 44 in the front-rear direction.

[0025] The first board connection portion 47 extends rearward from the rear end of the lower plate portion 42. The upper plate portion 44 on which the press-fit projection 46 is formed and the lower plate portion 42 connected to the first board connection portion 47 are arranged to face each other in a direction (upward and downward) parallel to the protruding direction (upward) of the press-fit projection 46. The first board connection portion 47 has a first extension portion 48 extending flush from the rear end of the lower plate portion 42, a first leg portion 49 extending downward from the rear end of the first extension portion 48, and a first mounting portion 50 extending rearward from the lower end of the first leg portion 49. The first extension portion 48 extends flush from the lower plate portion 42, and the first leg portion 49 and the first mounting portion 50 are arranged lower than the first extension portion 48, so that the first board connection portion 47 does not exist within the range of the opening area of ​​the opening 51 at the rear end of the terminal main body portion 41 in a rear view. The first mounting portion 50 is adapted to be welded to the lands on the mounting surface 61 of the FPC 60 by reflow soldering.

[0026] The second terminal fitting 55, like the first terminal fitting 40, is a single component formed by bending, hammering, etc. a single metal plate material punched into a predetermined shape. The second terminal fitting 55 has a terminal body portion 41 having the same configuration as the terminal body portion 41 of the first terminal fitting 40, and a second board connecting portion 56.

[0027] The second board connection portion 56 extends rearward from the rear end of the lower plate portion 42. The upper plate portion 44 on which the press-fit projection 46 is formed and the lower plate portion 42 connected to the second board connection portion 56 are arranged to face each other in a direction (upward and downward) parallel to the protruding direction (upward) of the press-fit projection 46. The second board connection portion 56 has a second extension portion 57 extending flush from the rear end of the lower plate portion 42, a second leg portion 58 extending downward from the rear end of the second extension portion 57, and a second mounting portion 59 extending rearward from the lower end of the second leg portion 58. The second extension portion 57 extends flush from the lower plate portion 42, and the second leg portion 58 and the second mounting portion 59 are arranged lower than the second extension portion 57, so that the second board connection portion 56 does not exist within the range of the opening area of ​​the opening 51 at the rear end of the terminal main body portion 41 in a rear view. The second mounting portion 59 is adapted to be welded to a land on the mounting surface 61 of the FPC 60 by reflow soldering.

[0028] Next, the assembly process of the board connector A of this embodiment 1 will be described. Before assembly, the first terminal fitting 40 has a molded terminal body 41 and a first board connection portion 47 extending linearly rearward from the terminal body 41, as shown in Fig. 4. Before assembly, the second terminal fitting 55 also has a molded terminal body 41 and a second board connection portion 56 extending linearly rearward from the terminal body 41.

[0029] During assembly, the first terminal fitting 40 is inserted into the upper terminal accommodating chamber 14 from the front of the housing 10, and the first board connecting portion 47 extending linearly is inserted into the through hole 17. During the process of inserting the terminal body 41 into the terminal accommodating chamber 14, the press-in projection 46 slides against the upper wall surface of the terminal accommodating chamber 14 while being pressed against it. During this process, a reaction force caused by the pressing of the press-in projection 46 acts downward on the terminal body 41, so that the terminal body 41 and the first board connecting portion 47 slide against the sliding surface 18 while being pressed against it.

[0030] Since the rear end of the sliding contact surface 18 forms the lower surface of the through hole 17, the rear end of the first board connecting portion 47 is smoothly inserted into the through hole 17. Even if the rear end of the first board connecting portion 47 is raised upward, the rear end of the first board connecting portion 47 is guided into the through hole 17 by sliding against the guide surface 19. When the rear end of the terminal body 41 abuts against the front surface of the blocking portion 16, the insertion of the first terminal fitting 40 is completed. The press-fitting projection 46 presses against the upper wall surface of the terminal accommodating chamber 14 so as to bite into it, thereby holding the terminal body 41 of the first terminal fitting 40 in the terminal accommodating chamber 14 in a non-removable state.

[0031] Next, the second terminal fitting 55 is inserted from the front of the housing 10 into the terminal accommodating chamber 14 on the lower side, and the second board connection portion 56 extending linearly is inserted into the through hole 17. In the process of inserting the terminal body portion 41 into the terminal accommodating chamber 14, the press-in projection 46 slides against the inner wall surface of the terminal accommodating chamber 14 while being pressed against it, so that, similar to the first terminal fitting 40, the terminal body portion 41 and the second board connection portion 56 slide against the sliding surface 18 while being pressed against it, and the second board connection portion 56 is inserted into the through hole 17. When the rear end of the terminal body portion 41 hits the front surface of the blocking portion 16, the insertion of the second terminal fitting 55 is completed. The press-in projection 46 presses against the upper wall surface of the terminal accommodating chamber 14 so as to bite into it, so that the terminal body portion 41 of the second terminal fitting 55 is held in the terminal accommodating chamber 14 in a non-dislodging state.

[0032] Next, the front member 30 is assembled to the housing 10. During assembly, the front member 30 is brought close to the front of the housing 10, and the left and right side wall portions 32 are fitted into the fitting recesses 20, and the guide grooves 37 are fitted into the guide ribs 21. By fitting the side wall portions 32 into the fitting recesses 20, the front member 30 is positioned in the left-right direction relative to the housing 10, and the posture of the front member 30 in the left-right direction is stabilized. By fitting the guide grooves 37 into the guide ribs 21, the front member 30 is positioned in the up-down direction relative to the housing 10, and the posture of the front member 30 in the up-down direction is stabilized.

[0033] When the assembly of the front member 30 is continued in this state, the left and right bottom wall portions 33 come into sliding contact with the underside of the housing 10. Toward the end of the assembly process, the first locking portions 35 of the side wall portions 32 interfere with the first locking projections 22, causing the left and right side wall portions 32 to temporarily elastically deform so as to spread apart, and the second locking portions 36 of the bottom wall portion 33 interfere with the second locking projections 23, causing the bottom wall portion 33 to temporarily elastically deform downward.

[0034] When the front member 30 reaches the correct assembly position, the front wall 31 abuts against the front surface 10F of the housing 10, blocking the insertion opening 15. The left and right side wall portions 32 elastically return to their original position so that the first locking portions 35 engage with the first locking projections 22, and the left and right bottom wall portions 33 elastically return to their original position so that the second locking portions 36 engage with the second locking projections 23. Due to these engagements, the front member 30 is held in a retained state in which it is restricted from coming off forward from the housing 10.

[0035] After the front member 30 is assembled to the housing 10, the first board connection portion 47 in a straight state is bent to form the first leg portion 49 and the first mounting portion 50. The second board connection portion 56 in a straight state is bent to form the second leg portion 58 and the second mounting portion 59. The first board connection portion 47 and the second board connection portion 56 may be bent before the front member 30 is assembled to the housing 10. With the above, the assembly of the board connector A is completed.

[0036] When the assembled board connector A is viewed from the rear, the terminal accommodating chamber 14 is almost entirely covered by the blocking portion 16. The openings 51 of the terminal body portions 41 of the first terminal fittings 40 and the second terminal fittings 55 are entirely covered from the rear by the blocking portion 16. A through hole 17 communicating with the terminal accommodating chamber 14 is formed in the blocking portion 16, but the opening area of ​​the through hole 17 is sufficiently smaller than the cross-sectional area of ​​the terminal accommodating chamber 14, and the through hole 17 is mostly blocked by the first board connecting portion 47 and the second board connecting portion 56. Therefore, there is no risk of foreign matter (not shown) or potting material (not shown) from outside the housing 10 entering the terminal accommodating chamber 14 or the terminal body portion 41 through the through hole 17.

[0037] The board connector A of the first embodiment includes a housing 10 having a terminal accommodating chamber 14, a first terminal fitting 40 and a second terminal fitting 55 attached to the housing 10, and a front member 30 attached to the housing 10. An insertion opening 15 for inserting the terminal fitting into the terminal accommodating chamber 14 is opened on a front surface 10F of the housing 10. The front member 30 is attached to the housing 10 in a state where it covers the insertion opening 15. The housing 10 has a blocking portion 16 that blocks the rear end of the terminal accommodating chamber 14. A through hole 17 having an opening area smaller than that of the insertion opening 15 is formed in the blocking portion 16.

[0038] The first terminal fitting 40 has a terminal body 41 accommodated in the terminal accommodating chamber 14, a resilient contact piece 45 provided on the terminal body 41, and a first board connecting portion 47 extending rearward from the terminal body 41 and inserted into the through hole 17. The second terminal fitting 55 has the terminal body 41 accommodated in the terminal accommodating chamber 14, the resilient contact piece 45 provided on the terminal body 41, and a second board connecting portion 56 extending rearward from the terminal body 41 and inserted into the through hole 17.

[0039] In the board connector A of the present embodiment 1, the rear end of the terminal accommodating chamber 14 is closed by a closing portion 16. The through hole 17 formed in the closing portion 16 has an opening area smaller than that of the insertion opening 15, so the gap between the through hole 17 and the board connection portion is also small. This makes it possible to suppress the intrusion of foreign matter into the terminal accommodating chamber 14 from the rear of the housing 10 and to prevent the adhesion of foreign matter to the elastic contact piece 45. This makes it possible to avoid a decrease in the reliability of the connection function of the terminal fittings.

[0040] The terminal body 41 is in the shape of a rectangular tube with both ends open. The front ends of the first board connection part 47 and the second board connection part 56 are connected flush with the rear end of one of the four board parts (lower board part 42, left and right side board parts 43, and upper board part 44) constituting the terminal body 41. The inner surface (lower surface) of the terminal accommodating chamber 14 and the inner surface (lower surface) of the through hole 17 form a flush and continuous sliding contact surface 18. With this configuration, the first board connection part 47 and the second board connection part 56 inserted into the terminal accommodating chamber 14 are smoothly inserted into the through hole 17 by sliding against the flush and continuous sliding contact surface 18.

[0041] Of the four plate parts (lower plate part 42, left and right side plate parts 43, and upper plate part 44) constituting the terminal body part 41, the plate part (upper plate part 44) opposite to the sliding contact surface 18 side is formed with a press-in protrusion 46 that presses the inner wall part of the terminal accommodating chamber 14 from the sliding contact surface 18 side. In the process of inserting the first terminal fitting 40 into the terminal accommodating chamber 14, the press-in protrusion 46 presses the inner wall part of the terminal accommodating chamber 14, and the terminal body part 41 and the first board connecting part 47 are pressed against the sliding contact surface 18 by the reaction force. This allows the first board connecting part 47 to be reliably inserted into the through hole 17. The second terminal fitting 55 also has a press-in protrusion 46 of the same shape as the first terminal fitting 40, so that the second board connecting part 56 can be reliably inserted into the through hole 17.

[0042] A tapered guide surface 19 is formed on the opening edge of through hole 17 on the front surface of blocking portion 16 to guide the rear end portion of first board connection portion 47 and the rear end portion of second board connection portion 56 into through hole 17. With this configuration, first board connection portion 47 and second board connection portion 56 can be inserted into through hole 17 smoothly and reliably.

[0043] The front member 30 has a front wall portion 31, a pair of left and right side wall portions 32, and a pair of left and right bottom wall portions 33. The front wall portion 31 is a portion facing the front end portion of the terminal main body portion 41 from the front. The pair of side wall portions 32 are portions extending rearward from both widthwise end edges of the front wall portion 31. The pair of bottom wall portions 33 are portions continuing to the front wall portion 31 and the pair of side wall portions 32. The front member 30 is engaged with the first locking projection 22 and the second locking projection 23 of the housing 10 at the first locking portion 35 of the pair of side wall portions 32 and the second locking portion 36 of the pair of bottom wall portions 33. According to this configuration, the widthwise end portions of the front member 30 are unlikely to deform because the front wall portion 31, the side wall portions 32, and the bottom wall portions 33 are connected. Therefore, the front member 30 can be reliably assembled to the housing 10.

[0044] [Other Examples] The present invention is not limited to the embodiments described above and shown in the drawings, but is indicated by the claims. The present invention includes the equivalent meaning of the claims and all modifications within the scope of the claims, including the following embodiments. In the first embodiment, the inner surface of the terminal accommodating chamber and the inner surface of the through hole may be connected to each other in a stepped manner or via an inclined surface. In the first embodiment, the terminal body may have a shape other than a rectangular tube shape. In the first embodiment, the front end of the board connecting portion may be connected to the rear end of the plate portion constituting the terminal body in a stepped manner. In the first embodiment, the press-fit protrusion may not be formed on the terminal body. In this case, the terminal body may be prevented from coming out by a lance formed in the terminal receiving chamber. In the first embodiment, the circuit board to which the board connection portion is connected is not limited to an FPC (flexible circuit board), and may be a circuit board that does not have flexibility. [Explanation of symbols]

[0045] A … PCB connector 10. Housing 10F…Front of housing 11...Terminal housing 12...Protective wall part 13…Peg 14...Terminal chamber 15…Insertion port 16...Occluded part 17...Through hole 18…Sliding surface 19…Guiding surface 20…Mating recess 21...Guide rib 22…First lock protrusion 23…Second lock protrusion 30…Front member 31...Front wall part 32…Side wall 33…Bottom wall 34...Connection hole 35…First lock section 36…Second lock section 37...Guide groove 40...First terminal metal fitting (terminal metal fitting) 41...Terminal body 42...Lower plate portion (one of the plate portions constituting the terminal receiving chamber) 43...Side plate portion (plate portion constituting the terminal accommodating chamber) 44...Upper plate portion (plate portion constituting the terminal accommodating chamber, plate portion opposite to the sliding surface side) 45...Elastic contact piece 46…Press-fit protrusion 47...First board connection part (board connection part) 48...First extension part 49...1st leg 50…First mounting section 51...Opening 55...Second terminal metal fitting (terminal metal fitting) 56...Second board connection part (board connection part) 57…Second extension part 58...Second leg 59…Second mounting section 60…FPC 61...Mounting surface 62…Reinforcement plate

Claims

1. a housing having a terminal receiving chamber; A terminal metal fitting attached to the housing; a front member attached to the housing, The housing has an insertion opening at a front surface thereof for inserting the terminal fitting into the terminal accommodating chamber, the front member is attached to the housing in a state of covering the insertion opening, the housing has a closing portion that closes a rear end of the terminal accommodating chamber, a through hole having an opening area smaller than that of the insertion opening is formed in the blocking portion; The terminal fitting is a connector for a board having a terminal main body portion that is accommodated in the terminal accommodating chamber, an elastic contact piece provided on the terminal main body portion, and a board connection portion that extends rearward from the terminal main body portion and is inserted into the through hole.

2. The terminal body is in the shape of a square tube with both front and rear ends open, the board connection portion is connected flush with a rear end portion of any one of the four plate portions constituting the terminal body, 2. The circuit board connector according to claim 1, wherein an inner surface of said terminal receiving chamber and an inner surface of said through hole form a flush, continuous sliding surface.

3. A board connector as described in claim 2, wherein the plate portion opposite the sliding surface side of the four plate portions constituting the terminal main body portion has a press-in protrusion formed thereon to press against the inner wall portion of the terminal accommodating chamber.

4. A connector for a board as described in any one of claims 1 to 3, wherein a tapered guide surface is formed on the opening edge of the through hole on the front surface of the blocking portion to guide the rear end of the board connection portion into the through hole.

5. the front member has a front wall portion facing a front end portion of the terminal body from the front, a pair of side wall portions extending rearward from both widthwise end edges of the front wall portion, and a pair of bottom wall portions connected to the front wall portion and the pair of side wall portions, 4. The board connector according to claim 1, wherein the front member is engaged with the housing at the pair of side walls and the pair of bottom walls.

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