Board mounting connector and connector mounting structure

Abstract

To provide a board mounting connector capable of suppressing a generation of vibrations at a time of attachment of a locking arm.SOLUTION: A board mounting connector 1 includes a terminal 2 mounted on a circuit board 100 and a housing 3 that holds the terminal 2. The housing 3 includes a pair of locking arms 4 supported by a pair of supporting point portions 35 provided on a pair of side walls 34 so as to be elastically swingably displaceable in a seesaw shape. Each locking arm 4 includes a locking claw 44 formed so as to protrude from one end 41 of a locking arm main body 40, and a pressing operation part 45 provided on an other end 42 of the locking arm main body 40 and capable of being pressed in a protruding direction of the locking claw 44 by a finger or a robot hand. The locking claws 44 of the pair of locking arms 4 can be inserted into a pair of through holes 103 of a circuit board 100 without interference in a state where the pair of pressing operation parts 45 are pressed.SELECTED DRAWING: Figure 9A-9B

Description

[Technical Field]

[0001] The present invention relates to a board-mounted connector and a connector mounting structure. [Background technology]

[0002] In the printed wiring board connector (board-mounted connector) disclosed in Patent Document 1, mounting legs (locking arms) extending from a base housing have locking claws at their tips. The mounting legs are inserted into mounting holes in a printed wiring board (circuit board), and the locking claws at the tips of the mounting legs lock onto the edges of the mounting holes on the back surface of the printed wiring board. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 9-35832 Summary of the Invention [Problem to be solved by the invention]

[0004] In Patent Document 1, when a connector for connecting a printed wiring board (board-mounted connector) before mounting is attached to a printed wiring board (circuit board), the mounting legs (locking arms) are first inserted into mounting holes in the printed wiring board (circuit board). During this insertion operation, the locking claws are inserted in a state where they interfere with the inner periphery of the mounting hole. That is, the elastic repulsive force of the elastically deformed mounting legs presses the locking claws against the inner periphery of the mounting hole, causing frictional sliding within the mounting hole. This causes vibrations in the printed wiring board due to the frictional sliding. This vibration can cause misalignment of components placed on the printed wiring board before mounting.

[0005] Furthermore, when the locking claw inserted into the mounting hole protrudes from the mounting hole, the mounting leg springs back to its original position with great force, colliding with the inner periphery of the mounting hole and applying an impact. This impact causes vibrations in the printed wiring board. These vibrations can cause components placed on the printed wiring board to become misaligned before being mounted.

[0006] An embodiment of the present invention provides a board-mounted connector and a connector mounting structure that can suppress the generation of vibration when a locking arm is mounted. [Means for solving the problem]

[0007] One embodiment of the present invention is a board-mounted connector (1; 1P) mounted on a circuit board (100) including a pair of through holes (103), the board-mounted connector (1; 1P) comprising: a terminal (2) mounted on the circuit board; and a housing (3; 3P) for holding the terminal, the housing including a pair of side walls (34), a pair of fulcrums (35; 35P) provided on each of the pair of side walls, and a pair of locking arms (4; 4P) supported by the pair of fulcrums so as to be elastically swingable in a seesaw-like manner. Each of the locking arms includes a locking arm body (40) including one end (41) that is inserted into a corresponding through hole and protrudes from a back surface (100b) of the circuit board, an other end (42), and an intermediate portion (43) between the one end and the other end that is connected to the corresponding fulcrum. Each of the locking arms includes a locking claw (44; 44P) that protrudes from one end of the locking arm body and can be engaged with the edge of a corresponding through-hole on the back surface of the circuit board, and a pressing operation portion (45; 45P) that is provided at the other end of the locking arm body and can be pressed in the protruding direction of the locking claw. When the pressing operation portions of the pair of locking arms are pressed, the locking claws of the pair of locking arms are configured to be able to be inserted into the pair of through-holes without interfering with each other.

[0008] With this configuration, when the locking claws of the pair of locking arms are inserted into the pair of through holes while the pressing operation portions of the pair of locking arms are pressed by, for example, a robot hand, each locking claw is inserted without interfering with the inner periphery of the corresponding through hole, which prevents vibration from occurring in the circuit board when the locking claws are inserted, thereby preventing misalignment of components placed on the circuit board before mounting.

[0009] Furthermore, after the locking claws have been inserted, the operation of releasing the pressing operation parts of the pair of locking arms so that the locking claws of the pair of locking arms are locked onto the edges of the pair of through holes is performed in a state in which the pair of pressing operation parts are supported by, for example, a robot hand. This prevents the circuit board from receiving an impact from the locking arms and generating vibrations when the pressing operation is released, thereby preventing misalignment of components placed on the circuit board before mounting.

[0010] The alphanumeric characters in parentheses represent corresponding components in the embodiments described below, but this does not, of course, mean that the present invention is limited to those embodiments. The same applies hereinafter in this section.

[0011] In a preferred embodiment, the locking claws of the pair of locking arms protrude inward from each other. The housing further includes a pair of gripped parts (HK) that can be gripped by fingers or a robot hand. The pair of gripped parts include outer surfaces (45a) of the pair of pressing operation parts.

[0012] This configuration allows the board-mounted connector to be transported by clamping the sides (clamped portions) of the pressing portions of the pair of locking arms. The clamping action for transporting the board-mounted connector also serves to swing and displace the pair of locking arms to insert each locking claw into the corresponding through-hole. This simplifies the process of attaching the board-mounted connector to a circuit board.

[0013] In a preferred embodiment, the housing includes a pair of protective ribs (36) that protrude from the outer surfaces of the pair of side walls and extend parallel to the locking arm bodies of the pair of locking arms. The pair of clamped portions include outer surfaces (36a) of the pair of protective ribs. With this configuration, the outer surfaces of the pair of protective ribs are clamped together with the outer surfaces of the pressing operation portions of the pair of locking arms, so that the board-mounted connector can be stably clamped during transportation.

[0014] In one preferred embodiment, the terminals include insertion-mount terminals. This configuration makes it possible to suitably realize an insertion-mount board-mounted connector.

[0015] In a preferred embodiment, the housing includes a rear wall (33) disposed in a direction (X2) opposite to a mating direction (X1) with respect to a mating connector. The through-hole mounting terminal includes a lead portion (23) protruding from the rear wall. The pair of side walls includes a pair of extending side walls (50) extending in the opposite direction from the rear wall and disposed on both sides of the lead portion, the pair of extending side walls including the pair of fulcrum portions disposed on each of the pair of extending side walls. With this configuration, by disposing the pair of fulcrum portions on the pair of extending side walls that protect the lead portions of the terminal, it is possible to effectively utilize materials.

[0016] In a preferred embodiment, the housing includes a pair of restricting portions (R) that restrict the amount of pressure applied to the pair of pressing portions, respectively. With this configuration, the amount of pressure applied to the pressing portions of the pair of locking arms can be restricted with high precision, allowing the locking claws to be inserted into the corresponding through holes without interference.

[0017] One embodiment of the present invention provides a connector mounting structure (200) including a circuit board including a pair of through holes and the board-mounted connector mounted on the circuit board. This configuration can suppress vibrations that occur when the locking arm is attached. [Brief explanation of the drawings]

[0018] [Figure 1] FIG. 1 is a perspective view of a board-mounted connector and a circuit board according to one embodiment of the present invention. [Figure 2] FIG. 2 is a perspective view of a connector mounting structure including a board-mounted connector and a circuit board. [Figure 3A-3B] 3A and 3B are perspective views of the board-mounted connector from different angles. [Figure 4A-4B] FIG. 4A is a plan view of the board-mounted connector, and FIG. 4B is a front view of the board-mounted connector. [Figure 5A-5B] FIG. 5A is a rear view of the board-mounted connector, and FIG. 5B is a bottom view of the board-mounted connector. [Figures 6A-6B] FIG. 6A is a left side view of the board-mounted connector, and FIG. 6B is a right side view of the board-mounted connector. [Figures 7A-7B] 7A is a plan cross-sectional view of the board-mounted connector, and FIG. 7B is an enlarged cross-sectional view of a portion of FIG. 7A. [Figure 8] FIG. 8 is an enlarged perspective view of the locking arm and its surroundings. [Figure 9A-9B] FIG. 9A is a diagram showing a mounting process for a board-mounted connector, and FIG. 9B is a cross-sectional view of the connector mounting structure. [Figures 10A-10B] 10A and 10B are cross-sectional views sequentially showing the operation of the locking arm. [Figure 11] FIG. 11 is a perspective view of a board-mounted connector according to another embodiment of the present invention. [Figure 12] FIG. 12 is a schematic diagram showing a mounting process for a board-mounted connector according to another embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0019] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.

[0020] Fig. 1 is a perspective view of a board-mounted connector 1 and a circuit board 100 according to one embodiment of the present invention. Fig. 2 is a perspective view of a connector mounting structure 200 including the board-mounted connector 1 and the circuit board 100. The circuit board 100 includes a front surface 100a, a back surface 100b, multiple rows of first through holes 101 for inserting terminals, a pair of second through holes 102 for inserting positioning pins, and a pair of third through holes 103 for inserting locking arms.

[0021] The surface 100a of the circuit board 100 extends in the front-to-rear direction X and the left-to-right direction Y of the board-mounted connector 1. The mating direction X1 of the board-mounted connector 1 corresponds to the front in the front-to-rear direction X, and the direction X2 opposite to the mating direction X1 corresponds to the rear in the front-to-rear direction X. The upper side of the board-mounted connector 1 in the up-down direction Z corresponds to the height direction Z1.

[0022] 3A and 3B are perspective views of the board-mounted connector 1 from different angles. FIG. 4A is a plan view of the board-mounted connector 1, and FIG. 4B is a front view of the board-mounted connector 1. FIG. 5A is a rear view of the board-mounted connector 1, and FIG. 5B is a bottom view of the board-mounted connector 1. FIG. 6A is a left side view of the board-mounted connector 1, and FIG. 6B is a right side view of the board-mounted connector. FIG. 7A is a plan cross-sectional view of the board-mounted connector 1, and FIG. 7B is an enlarged cross-sectional view of a portion of FIG. 7A.

[0023] As shown in Figure 4B, the board-mounted connector 1 includes a row of upper terminals 2U, middle terminals 2M, and lower terminals 2L (collectively referred to simply as terminals 2), and an insulating housing 3 that holds these terminals 2.

[0024] First, terminal 2 will be described.

[0025] As shown in FIG. 7A, the terminal 2 is an insertion-mount type terminal including a terminal body 20 having a fixed portion 21 and a male terminal portion 22 and extending in the front-rear direction X, and a lead portion 23 connected to a circuit board 100 (see FIGS. 1 and 2). The fixed portion 21 is press-fitted and fixed into the housing 3. As shown in FIG. 7B, the fixed portion 21 includes a press-fit protrusion 21a and a positioning protrusion 21b that determines the press-fit position of the fixed portion 21. The male terminal portion 22 extends from the fixed portion 21 in the fitting direction X1 (forward) and protrudes into the insertion recess S1 of the housing 3. The male terminal portion 22 is fitted with a corresponding mating female terminal portion (not shown).

[0026] 3A, the lead portion 23 includes an inclined portion 24 and a mounting portion 25. The inclined portion 24 extends obliquely downward from the rear end 20a of the terminal body 20 that protrudes from the rear wall 33 of the housing 3. The mounting portion 25 extends downward Z2 in the up-down direction Z from the extending end 24a (lower end) of the inclined portion 24, and is inserted into a corresponding first through-hole 101 (see FIG. 1) of the circuit board 100 for mounting.

[0027] As shown in Fig. 4B, in the height direction Z1, the male terminal portion 22 of the terminal body 20 of the upper terminal 2U decreases in height, followed by the male terminal portion 22 of the terminal body 20 of the middle terminal 2M and the male terminal portion 22 of the terminal body 20 of the lower terminal 2L. Also, as shown in Fig. 5B, in the front-rear direction X, the mounting portion 25 of the upper terminal 2U, the mounting portion 25 of the middle terminal 2M and the mounting portion 25 of the lower terminal 2L approach the rear wall 33 of the housing 3 in this order. Also, as shown in Fig. 4A, in a plan view, the lead portion 23 of the upper terminal 2U, the lead portion 23 of the middle terminal 2M and the lead portion 23 of the lower terminal 2L are alternately arranged in this order in the left-right direction Y.

[0028] Next, the housing 3 will be described.

[0029] As shown in Figures 3A, 3B, and 4B, the housing 3 includes a top wall 31, a bottom wall 32, a rear wall 33, a pair of side walls 34, an insertion recess S1 (see also Figure 7A), a pair of fulcrum portions 35, a pair of protective ribs 36, a pair of positioning pins 37 (see also Figure 5B), a pair of locking arms 4 (see also Figure 5A), and a pair of clamped portions HK that can be clamped by fingers or a robot hand.

[0030] As shown in FIGS. 4B and 7A, the top wall 31, the bottom wall 32, and the pair of side walls 34 form an insertion recess S1 into which a mating housing (not shown) of a mating connector is inserted and fitted.

[0031] 3A and 4A, the pair of side walls 34 includes a pair of extending side walls 50 that extend rearward beyond the rear wall 33. The pair of extending side walls 50 are arranged on both sides of the lead portions 23 of the terminals 2 (upper terminal 2U, middle terminal 2M, and lower terminal 2L) in the left-right direction Y, and function as a pair of protective walls that protect the lead portions 23 of the terminals 2. As shown in FIG. 5A, each extending side wall 50 includes an outer surface 50a and an inner surface 50b.

[0032] 5A and 8, the pair of fulcrum portions 35 are respectively disposed on the outer surfaces 50a of the pair of extending side walls 50. Specifically, the pair of fulcrum portions 35 are respectively formed as protrusions that protrude from the outer surfaces 50a of the pair of extending side walls 50 and connect the corresponding locking arms 4. As shown in FIGS. 9A and 9B, the pair of fulcrum portions 35 support the pair of locking arms 4 so that they can elastically swing and displace in a seesaw manner.

[0033] 3A and 3B, the pair of protective ribs 36 are formed to protrude from the outer surfaces 50a of the pair of extending side walls 50, and as shown in FIGS. 6A and 6B, are vertical ribs extending in the up-down direction Z parallel to the corresponding locking arms 4. Each protective rib 36 includes an outer surface 36a.

[0034] 5A, each locking arm 4 includes a locking arm body 40 having one end 41, the other end 42, an intermediate portion 43 between the one end 41 and the other end 42, an outer surface 40a, and an inner surface 40b. Each locking arm 4 also includes a locking claw 44 provided at the one end 41 of the locking arm body 40, and a pressing operation portion 45 provided at the other end 42 of the locking arm body 40.

[0035] The locking claws 44 of the pair of locking arms 4 protrude inward from each other in the left-right direction Y. That is, each locking claw 44 is formed to protrude from the inner surface 40b of one end 41 of the corresponding locking arm body 40. As shown in FIGS. 10A and 10B , each locking claw 44 is inserted into a corresponding third through-hole 103 of the circuit board 100 and is locked to the edge of the corresponding third through-hole 103 on the back surface 100b of the circuit board 100.

[0036] 4A and 9A, a pair of clamped portions HK that can be clamped by fingers or a robot hand (not shown) includes outer surfaces 45a (top surfaces of the convex portions) of the pressing operation portions 45 of the pair of locking arms 4 and outer surfaces 36a of the pair of protective ribs 36. The outer surfaces 36a of the pair of protective ribs 36 function as a pair of clamped portions HK, and also function as a pair of regulating portions R that regulate the amount of pressing operation of the pair of pressing operation portions 45.

[0037] 9A, when the pressing operation portions 45 of the pair of locking arms 4 are pressed, the locking claws 44 of the pair of locking arms 4 are configured to be able to be inserted without interference into the pair of third through holes 103. That is, when the pressing operation portions 45 of the pair of locking arms 4 are pressed, the arrangement distance D1 between the pair of locking claws 44 in the left-right direction Y is larger than the arrangement distance D2 between the pair of third through holes 103 (D1>D2).

[0038] As shown in FIG. 4A, when the pair of pressing operation portions 45 are not operated, the outer surfaces 45a of the pair of pressing operation portions 45 protrude further in the outward directions Y1 and Y2 than the outer surfaces 36a of the pair of protection ribs 36.

[0039] As shown in Fig. 9A, when the outer surfaces 45a (held portions HK) of the pair of pressing operation portions 45 are pressed and clamped by a finger or a robot hand (not shown), the locking arm 4 is tilted and swung so that the pair of pressing operation portions 45 approach each other. Accordingly, the outer surfaces 36a (see Fig. 4A; held portions HK) of the pair of protective ribs 36 are also clamped by the finger or robot hand (not shown). At this time, the outer surfaces 36a (held portions HK) of the pair of protective ribs 36 function as a pair of regulating portions R that regulate the amount of pressing of the pair of pressing operation portions 45.

[0040] According to this embodiment, as shown in Fig. 9A, when the locking claws 44 of the pair of locking arms 4 are inserted into the pair of third through holes 103 (see Fig. 10A) while the pressing operation portions 45 of the pair of locking arms 4 are pressed by a finger or a robot hand, each locking claw 44 is inserted without interfering with the inner periphery of the corresponding third through hole 103. Therefore, vibrations occurring in the circuit board 100 when the locking claws 44 are inserted are suppressed, and as a result, misalignment of components placed on the circuit board 100 before mounting is suppressed.

[0041] Furthermore, after the locking claws 44 have been inserted, the operation of releasing the pressing operation portions 45 of the pair of locking arms 4 is performed with the pair of pressing operation portions 45 supported by fingers or a robot hand so that the locking claws 44 of the pair of locking arms 4 are locked onto the edges of the pair of third through holes 103 (see FIGS. 9B and 10B). Therefore, when the pressing operation is released, the circuit board 100 is prevented from receiving an impact from the locking arms 4 and generating vibrations, and as a result, misalignment of components (not shown) placed on the circuit board 100 before mounting is prevented.

[0042] 5A, the locking claws 44 of the pair of locking arms 4 protrude inward from each other. The housing 3 includes outer surfaces 45a of a pair of pressing operation portions 45 as a pair of clamped portions HK that can be clamped by fingers or a robot hand. With this configuration, the board-mounted connector 1 can be transported by clamping the outer surfaces 45a (clamped portions HK) of the pressing operation portions 45 of the pair of locking arms 4. Furthermore, the clamping action for transporting the board-mounted connector 1 also serves as the action of swinging and displacing the pair of locking arms 4 to insert the pair of locking claws 44 into the corresponding third through-holes 103. This simplifies the process of attaching the board-mounted connector 1 to the circuit board 100.

[0043] 4A, the housing 3 includes a pair of protective ribs 36 formed to protrude from the outer surfaces of the pair of side walls 34. The pair of clamped portions HK include outer surfaces 36a of the pair of protective ribs 36. With this configuration, the outer surfaces 36a (clamped portions HK) of the pair of protective ribs 36 are clamped together with the outer surfaces 45a (clamped portions HK) of the pressing operation portions 45 of the pair of locking arms 4, so that the board-mounted connector 1 can be stably clamped and transported.

[0044] 9B, the terminals 2 include terminals of an insertion mounting type. With this configuration, an insertion mounting type board-mounted connector 1 can be suitably realized.

[0045] 4A, the through-hole mount type terminal 2 includes a lead portion 23 that protrudes from a rear wall 33 of the housing 3. A pair of side walls 34 of the housing 3 includes a pair of extending side walls 50 that extend rearward (in the opposite direction to the mating direction) from the rear wall and are disposed on both sides of the lead portion 23. As shown in FIG. 5A, a pair of fulcrum portions 35 are disposed on the extending side walls 50, respectively. With this configuration, by disposing the pair of fulcrum portions 35 on the pair of extending side walls 50 that protect the lead portion 23 of the terminal 2, space can be saved and components can be used more effectively.

[0046] 3A and 3B, the housing 3 includes a pair of regulating portions R that respectively regulate the amount of pressing of the pair of pressing portions 45. With this configuration, the amount of pressing of the pressing portions 45 of the pair of locking arms 4 can be regulated with high precision, allowing the locking claws 44 to be inserted into the corresponding third through holes 103 without interference.

[0047] Next, Fig. 11 is a perspective view of a board mounted connector 1P according to another embodiment. Fig. 12 is a schematic diagram of the mounting process of the board mounted connector 1P.

[0048] The board-mounted connector 1P in Fig. 11 differs from the board-mounted connector 1 in Fig. 3A mainly in the following respects: a pair of fulcrum portions 35P of the board-mounted connector 1P are disposed on the inner surfaces 50b of the pair of extending side walls 50; a pair of protective ribs 36P are disposed on the inner surfaces 50b of the pair of extending side walls 50; and a pair of locking arms 4P include a pair of locking claws 44P that protrude outward from each other and a pair of pressing operation portions 45P that protrude inward from each other.

[0049] As shown in Figure 12, by using a robot hand (not shown) to press and open the pair of pressing operation portions 45P, the pair of locking claws 44P can be inserted into the pair of third through holes without interference.

[0050] That is, in a state where the pressing operation portions 45P of the pair of locking arms 4P are pressed in the widening direction (the direction of the arrow) in which they move apart from each other, the distance D3 between the tops of the pair of locking claws 44P in the left-right direction Y is smaller than the sum D5 (D5 = D2 + 2 × D4) of the arrangement interval D2 of the pair of third through holes 103 and the diameter value D4 of the pair of third through holes 103 (D3 <D5)。

[0051] Inner surfaces 45Pb of the pressing portions 45P of the pair of locking arms 4P function as a pair of spread-open gripped portions HKH to be spread-open and gripped by a robot hand (not shown). Also, as shown in Fig. 11, inner surfaces 36Pb of the pair of protection ribs 36P function as a pair of spread-open gripped portions HKH to be spread-open and gripped by a robot hand (not shown). Also, inner surfaces 36Pb of the pair of protection ribs 36P function as a pair of restriction portions R that restrict the amount of pressing of the pair of pressing portions 45P.

[0052] According to this embodiment, when the locking claws 44P of the pair of locking arms 4P are inserted into the pair of third through holes 103 with a robot hand (not shown) pressing the pressing operation portions 45P of the pair of locking arms 4P in the opening direction, each locking claw 44P is inserted without interfering with the inner periphery of the corresponding third through hole 103. This prevents vibration from occurring in the circuit board 100 when the locking claws 44P are inserted, and as a result, prevents misalignment of components (not shown) placed on the circuit board 100 before mounting.

[0053] Furthermore, after the locking claws 44P have been inserted, the operation of releasing the pressing operation of the pair of locking arms 4P against the pressing operation portions 45P is performed with the pair of pressing operation portions 45P supported by the robot hand in order to lock the locking claws 44P of the pair of locking arms 4P onto the edges of the pair of third through holes 103. Therefore, when the pressing operation is released, the circuit board 100 is prevented from receiving an impact from the locking arms 4P and generating vibrations, and as a result, misalignment of components (not shown) placed on the circuit board 100 before mounting is prevented.

[0054] Furthermore, the housing 3P includes a pair of restriction portions R (inner surfaces 36Pb of the protective ribs 36P) that restrict the amount of pressing of the pair of pressing portions 45P, respectively. This allows the amount of pressing of the pressing portions 45P of the pair of locking arms 4 to be restricted with precision, allowing the locking claws 44P to be inserted into the corresponding third through holes 103 without interference. This reliably suppresses vibration of the circuit board 100.

[0055] In addition, by spreading and gripping the inner surfaces 45Pb (expanded and gripped portions HKH) of the pressing operation portions 45P of a pair of locking arms 4P, and by spreading and gripping the inner surfaces 36Pb (expanded and gripped portions HKH) of a pair of protective ribs 36P, the board-mounted connector 1P can be stably gripped and transported.

[0056] Furthermore, the spreading and gripping action for transporting the board-mounted connector 1P also serves as the action of swinging and displacing the locking arms 4P to insert the pair of locking claws 44P into the corresponding third through-holes 103. This simplifies the process of attaching the board-mounted connector 1P to the circuit board 100.

[0057] The present invention is not limited to the above-described embodiment. For example, the pair of protective ribs 36 may not be provided in the embodiment of FIG. 3A. In this case, the pair of locking arms 4 abut against the outer surfaces 50 a of the pair of extending side walls 50, thereby restricting the amount of pressing of the pair of pressing operation portions 45. That is, the outer surfaces 50 a of the pair of extending side walls 50 function as a pair of restricting portions R that restrict the amount of pressing of the pair of pressing operation portions 45.

[0058] 11, the pair of protective ribs 36P may not be provided. In this case, the pair of locking arms 4P abut against the inner surfaces 50b of the pair of extending side walls 50, thereby restricting the amount of pressing of the pair of pressing portions 45P. That is, the inner surfaces 50b of the pair of extending side walls 50 function as a pair of restricting portions R that restrict the amount of pressing of the pair of pressing portions 45P.

[0059] In each of the above-described embodiments, the terminal 2 may be a surface-mount terminal. In addition, the present invention can be modified in various ways within the scope of the claims. [Explanation of symbols]

[0060] 1;1P PCB Mount Connector 2 terminals 2L upper terminal 2M medium terminal 2U upper terminal 3;3P housing 4;4P locking arm 23 Lead section 33 Back wall 34 Side wall 35;35P fulcrum part 36 Protective Rib 36a Outer surface (held part) 36P Protective Rib 36Pb Inner surface (expanded gripping part) 40 Arm body 41 one end 42 other end 43 Middle section 44;44P Locking claw 45 Pressing operation section 45a Outer surface (held part) 45P Press operation part 45Pb Inner surface (expanded gripping part) 50 Extending side wall 50a outer surface 50b Inside surface 100 Circuit Boards 100a surface 100b back side 103 3rd through hole 200 Connector mounting structure D1, D2 placement interval HK Clamped part HKH Expanded grip part R Regulation Department X1 Mating direction X2 opposite direction

Claims

1. A board-mounted connector that is mounted on a circuit board including a pair of through holes, a terminal mounted on the circuit board; a housing for holding the terminal, the housing including a pair of side walls, a pair of fulcrums provided on the pair of side walls, respectively, and a pair of locking arms each supported by the pair of fulcrums so as to be elastically swingably displaceable in a seesaw shape; Each of the locking arms includes a locking arm body including one end that is inserted into a corresponding through hole and can protrude from the back surface of the circuit board, the other end, and an intermediate portion between the one end and the other end that is connected to the corresponding fulcrum portion; a locking claw that is formed to protrude from the one end of the locking arm body and can be engaged with an edge portion of the corresponding through hole on the back surface of the circuit board; and a pressing operation portion that is provided at the other end of the locking arm body and can be pressed in the protruding direction of the locking claw, A board-mounted connector, wherein when the pressing operation portions of the pair of locking arms are pressed, the locking claws of the pair of locking arms are each configured to be able to be inserted into the pair of through holes without interfering with each other.

2. The locking claws of the pair of locking arms protrude inward from each other, the housing further includes a pair of clamped portions that can be clamped by fingers or a robot hand; The board-mounted connector according to claim 1 , wherein the pair of clamped portions includes outer surfaces of the pair of pressing operation portions.

3. the housing includes a pair of protective ribs formed to protrude from the outer surfaces of the pair of side walls and extending parallel to the locking arm bodies of the pair of locking arms, The board-mounted connector according to claim 2 , wherein the pair of clamped portions includes outer surfaces of the pair of protective ribs.

4. 4. The board-mounted connector according to claim 1, wherein the terminals include insertion-mounted terminals.

5. The housing includes a rear wall disposed in a direction opposite to a mating direction with respect to the mating connector, the through-hole mount terminal includes a lead portion protruding from the rear wall, 5. The board-mounted connector of claim 4, wherein the pair of side walls are a pair of extending side walls that extend in opposite directions from the rear wall and are arranged on both sides of the lead portion, and include a pair of extending side walls on which the pair of fulcrum portions are respectively arranged.

6. 4. The board-mounted connector according to claim 1, wherein the housing includes a pair of restricting portions that respectively restrict the amount of pressing of the pair of pressing portions.

7. a circuit board including a pair of through holes; A connector mounting structure comprising: a board-mounted connector according to any one of claims 1 to 3, which is mounted on the circuit board.

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