connector

Abstract

To provide a connector capable of preventing water from getting around a circuit board.SOLUTION: A connector 10 includes a first housing 20 and a second housing 70 that can be mated with each other. The first housing 20 has a mating portion 22 that opens forward in the mating direction to the second housing 70 and accommodates the second housing 70 inside. Of the walls that partition the mating portion 22 in the first housing 20, a first wall 24 located on the lower side has sloped portions 37,38 on the wall surface facing the interior of the mating portion 22 that slope downwardly toward the front and form a gap (drainage path 60) between the second housing 70 housed inside the mating portion 22 and the wall surface. A second wall 25, which intersects and is adjacent to the first wall 24, is arranged to shield a circuit board 100 and the sloped portions 37,38 on the side facing a board surface of the circuit board 100.SELECTED DRAWING: Figure 2

Description

Technical Field

[0005] ,

[0001] The present disclosure relates to a connector.

Background Art

[0002] Patent Document 1 discloses a waterproof connector including first and second connectors that can be fitted to each other. The first connector has an opening-expanded tapered surface on the inner wall of a cylindrical case. Connection terminals are mounted on the back wall of the first connector. The connection terminals are connected to a circuit board disposed on the back side of the first connector. Inside the second connector, contacts that can be connected to the connection terminals are accommodated. The contacts are connected to a control cable. A waterproof member is mounted on the outer periphery of the control cable.

[0003] When the first and second connectors are in a fitted state, the outer periphery of the waterproof member is in close contact with the opening-expanded tapered surface, making it possible to achieve waterproofing inside the case. Thus, a connector having a sloped portion such as an opening-expanded tapered surface and connected to a circuit board is also disclosed in Patent Documents 2-4.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Patent Document 2

Patent Document 3

Patent Document 4

Summary of the Invention

Problems to be Solved by the Invention

[0005] In the case of Patent Document 1, when the first and second connectors are mated, even if water enters the case, the presence of a waterproof member prevents drainage from the opening side of the case. As a result, there was a risk that water could seep from inside the case through the insertion holes of the connection terminals (holes formed in the part indicated by reference numeral 11b in Figure 4 of Patent Document 1) to the circuit board side.

[0006] Therefore, this disclosure aims to prevent water that has entered the inside of the connector from flowing into the circuit board. [Means for solving the problem]

[0007] The connector of this disclosure comprises a first housing and a second housing that can be mated to the first housing, wherein the first housing has a mating portion that opens forward in the direction of mating to the second housing and houses the second housing inside, and the lower of the walls that demarcate the mating portion in the first housing has a slanted portion on the wall surface facing the interior of the mating portion that slopes downward as it goes forward, forming a gap between the first housing and the second housing housed inside the mating portion, and the second wall adjacent to the first wall is arranged on the side facing the board surface of the circuit board so as to shield the circuit board from the slanted portion. [Effects of the Invention]

[0008] According to this disclosure, it is possible to provide a connector that can prevent water from seeping into the circuit board. [Brief explanation of the drawing]

[0009] [Figure 1] Figure 1 is a perspective view showing the connector according to Embodiment 1 of the present disclosure, in which the first housing and the second housing are mated together. [Figure 2] Figure 2 is a front view of the portion including the upper fitting part in the state shown in Figure 1. [Figure 3]Figure 3 is a cross-sectional view of the portion including the upper fitting part in the state shown in Figure 1. [Figure 4] Figure 4 is an enlarged cross-sectional view of the area where the gap is formed in Figure 3. [Figure 5] Figure 5 is a perspective view of the second housing from the rear. [Figure 6] Figure 6 is a front view of the first housing with the first terminal fitting attached. [Figure 7] Figure 7 is a perspective view of the first housing with the first terminal fitting attached, as seen from the second wall side. [Figure 8] Figure 8 is an enlarged perspective view of the area where the slope and other features are formed in Figure 7. [Modes for carrying out the invention]

[0010] [Description of Embodiments in this Disclosure] First, the embodiments of this disclosure will be listed and described. The connector disclosed herein is (1) The device comprises a first housing and a second housing that can be fitted into the first housing, wherein the first housing has a fitting portion that opens forward in the direction of fitting into the second housing and accommodates the second housing inside, and of the walls that demarcate the fitting portion in the first housing, the lower first wall has a slanted portion on the wall surface facing the interior of the fitting portion that slopes downward as it goes forward, forming a gap between the first wall and the second housing housed inside the fitting portion, and the second wall that intersects with and is adjacent to the first wall is arranged on the side facing the board surface of the circuit board so as to shield the circuit board from the slanted portion.

[0011] According to the above configuration, even if water enters the fitting portion when the first housing and the second housing are fitted together, it can be drained from the front end of the first wall through the slanted portion. In particular, a drainage path can be secured by the gap formed between the slanted portion and the second housing. In addition, since the inclined surface portion and the circuit board are shielded (blocked) by the second wall, it is possible to prevent water from flowing around from the inclined surface portion to the circuit board side.

[0012] (2) Preferably, the inclined surface portion is formed from the rear end to the front end of the wall surface of the first wall in the fitting direction. According to the above configuration, even when water deeply enters the inside of the fitting portion, it can be drained through the front end via the rear end of the inclined surface portion.

[0013] (3) Preferably, the inclined surface portion is formed on a part of the wall surface of the first wall, and the first wall has a surface portion arranged along the second housing accommodated inside the fitting portion on the other part of the wall surface. In the case of the present disclosure, although a gap is formed between the first wall of the first housing and the second housing, according to the above configuration, since the surface portion of the first wall is arranged along the second housing, the second housing can be fitted inside the fitting portion without rattling.

[0014] (4) Preferably, the front end side of the inclined surface portion is narrower in the left - right direction than the rear end side of the inclined surface portion. According to the above configuration, it is possible to form a structure in which it is difficult for water to enter the gap from the front end side of the inclined surface portion.

[0015] (5) Preferably, the inclined surface portions are arranged at intervals in the left - right direction on the wall surface of the first wall, the surface portion is arranged between two adjacent inclined surface portions in the left - right direction, and the first wall has a second inclined surface portion inclined downward in the left - right direction from the surface portion to the inclined surface portion on the wall surface. According to the above configuration, water on the surface portion side can be drained from the second inclined surface portion through the inclined surface portion.

[0016] (6) Preferably, the second wall is arranged vertically along the up - down direction that is the plate surface direction of the circuit board, and has an up - down dimension larger than the left - right dimension of the first wall. According to the above configuration, water is less likely to accumulate on the surface of the circuit board. In addition, since the vertical dimension of the second wall is larger than the horizontal dimension of the first wall, the shielding effect of the second wall can be enhanced.

[0017] [Details of the embodiments of this disclosure] Specific examples of the present disclosure will be described below with reference to the drawings. However, the present invention is not limited to these examples and is intended to be included in the claims, with all modifications in the sense and scope equivalent to the claims.

[0018] <Embodiment 1> As shown in Figure 1, the connector 10 according to Embodiment 1 of this disclosure comprises a first housing 20 and a second housing 70 that can be mated with each other. As shown in Figures 2 and 3, the connector 10 also comprises a first terminal fitting 21 and a second terminal fitting 71 that are mounted on the first housing 20 and the second housing 70, respectively, and a lever 75 that is assembled to the second housing 70. The first terminal fitting 21 is connected to a circuit board 100. In the following description, the front-rear direction is defined as the side of the first housing 20 and the second housing 70 that faces each other when mated. The left-right direction is based on the left-right direction in Figure 2. The up-down direction is based on the up-down direction in each figure. In Embodiment 1, the up-down direction coincides with the up-down direction when the connector 10 is mounted on a vehicle or the like, and includes cases where it is tilted with respect to the vertical direction. In the drawings, the reference numerals "X", "Y", and "Z" indicate the front-rear direction, left-right direction, and up-down direction, respectively.

[0019] <Second housing, lever, and second terminal fitting> The second housing 70 is made of synthetic resin and, as shown in Figure 5, is a vertically elongated rectangular block shape. The second housing 70 has a plurality of cavities 72 that penetrate in the front-to-back direction. A second terminal fitting 71 is inserted into each cavity 72 from the rear of the second housing 70. The second terminal fitting 71 is integrally formed by bending a conductive metal plate. The second terminal fitting 71 is a female type terminal fitting, although details are not shown, and is connected to the end of the electric wire W, as shown in Figure 3. The electric wire W is pulled out from the cavity 72 to the rear of the second housing 70.

[0020] As shown in Figure 5, a retainer mounting hole 73 is formed on one side of the second housing 70 (the right side in Figure 5). A retainer (not shown) is inserted into the retainer mounting hole 73. The retainer locks the second terminal fitting 71, which is located inside the cavity 72, in a non-dislodgement state.

[0021] A cylindrical support shaft 74 is formed protruding from the side of the second housing 70, behind the retainer mounting hole 73 on one of its left and right sides. Support shafts 74 are also formed on the other left and right sides of the second housing 70 (the sides opposite to the left and right sides) which are not shown. A lever 75 is rotatably supported on each support shaft 74.

[0022] The lever 75 is made of synthetic resin and, as shown in Figure 2, has a gate-shaped frame and a pair of opposing cam plates 76. Each cam plate 76 has a bearing hole 77 for receiving the support shaft 74 and a curved cam groove 78, as shown in Figure 3. Of the cam plates 76, the left and right cam plates 76 have elastically deformable lock arms 79.

[0023] At the start of fitting the first housing 20 and the second housing 70, the cam pin 34 of the first housing 20, which will be described later, is inserted into the entrance of the cam groove 78. When the lever 75 is rotated around the pivot shaft 74, the cam pin 34 moves along the groove surface of the cam groove 78, and the fitting of the first housing 20 and the second housing 70 proceeds. When the first housing 20 and the second housing 70 are properly fitted together, the lock arm 79 engages with the lock receiving portion 33 (see Figure 1), which will be described later, of the first housing 20, and the first housing 20 and the second housing 70 are held in the fitted state.

[0024] The upper and lower surfaces of the second housing 70 each have fitting grooves 81 (only the upper fitting groove 81 is shown in Figure 5) that extend in the front-rear direction and open at the front end of the second housing 70. Each fitting groove 81 is formed at a different position in the left-right direction on the upper and lower surfaces of the second housing 70, respectively, so as to correspond to each fitting rib 36, which will be described later.

[0025] <First housing and first terminal fitting> The first housing 20 is made of synthetic resin and, as shown in Figure 6, is a vertically elongated rectangular box shape. The first housing 20 has a pair of upper and lower fitting portions 22 that open to the front. A partition wall 23 is formed in the upper and lower center of the first housing 20, separating the fitting portions 22. Two second housings 70 are provided, corresponding to each of the fitting portions 22, and are inserted into each of the fitting portions 22 from the front of the first housing 20 together with a lever 75. Since the upper and lower fitting portions 22 are identical in shape, only one fitting portion 22 will be described below unless otherwise necessary.

[0026] The fitting portion 22 is divided, when viewed from the front, by a first wall 24 located on the lower side of the interior of the fitting portion 22, a second wall 25 located on one side (right side in Figure 6), a third wall 26 located on the other side (left side in Figure 6), a fourth wall 27 located on the upper side of the interior of the fitting portion 22, and a fifth wall 28 that closes the rear end face. The first wall 24 and the fourth wall 27 face each other in the vertical direction and are arranged along the left-right direction. The second wall 25 and the third wall 26 face each other in the left-right direction and are arranged along the vertical direction. The first wall 24 and the second wall 25 intersect and are adjacent to each other. The partition wall 23 is the first wall 24 of the upper fitting portion 22 and is also the fourth wall 27 of the lower fitting portion 22.

[0027] Multiple first terminal fittings 21 are mounted through the fifth wall 28. The first terminal fittings 21 are made of conductive metal and, as shown in Figure 1, are L-shaped overall, having a terminal connection portion 29 extending in the front-rear direction and a board connection portion 31 extending in the left-right direction. As shown in Figure 7, the front part of the terminal connection portion 29 is positioned to protrude into the inside of the mating portion 22. When the first housing 20 and the second housing 70 are mated, the front part of the terminal connection portion 29 is fitted and connected to the second terminal fitting 71. The rear part of the terminal connection portion 29 is positioned exposed at the rear of the first housing 20. The board connection portion 31 is shaped to extend from the rear end of the terminal connection portion 29 to one side on the left or right where the second wall 25 is located, at the rear of the first housing 20. The left or right end of the board connection portion 31 is connected to the circuit board 100.

[0028] The circuit board 100 is a rigid printed circuit board, with its surface oriented vertically. As shown in Figure 7, a flange portion 32 protrudes from the outer surface of the second wall 25, defining the front end position of the circuit board 100. The flange portion 32 has a rib shape that extends vertically at the front end of the second wall 25. The front part of the circuit board 100 is positioned behind the flange portion 32, along the outer surface of the second wall 25.

[0029] As shown in Figure 7, the second wall 25 is a sealing wall that shields (closes) the space between the inside of each fitting portion 22 and the circuit board 100, and does not have any holes or openings. A locking receiving portion 33 is formed through the third wall 26, corresponding to each of the fitting portions 22. The locking receiving portion 33 has a rectangular opening on the inner and outer surfaces of the third wall 26.

[0030] As shown in Figure 6, the second wall 25 and the third wall 26 have a pair of cam pins 34 protruding from them at positions facing each other in the upper and lower center of the fitting portion 22. Each cam pin 34 is cylindrical and, as shown in Figure 3, is insertable into the cam groove 78 of the lever 75. As shown in Figure 6, the fifth wall 28 has a pair of left and right partition walls 35 that protrude into the interior of the fitting portion 22. Each partition wall 35 is positioned closer to the left and right center than each cam pin 34, and is arranged parallel to the second wall 25 and the third wall 26, respectively, with its plate surface facing left and right. Each partition wall 35 prevents the first housing 20 and the second housing 70 from prying together and protects the terminal connection portion 29 of each first terminal fitting 21.

[0031] On the inner surfaces of the first wall 24 and the fourth wall 27, fitting ribs 36 are formed, extending in the front-to-back direction and having their rear ends connected to the fifth wall 28. As shown in Figure 6, the formation positions of each fitting rib 36 in the left-to-right direction on the inner surfaces of the first wall 24 and the fourth wall 27 are different from those of the other. Housing 2, Unit 70 When the fitting portion 22 is inserted in the correct position, each fitting rib 36 fits into each fitting groove 81, and the fitting operation of the first housing 20 and the second housing 70 proceeds. Housing 2, Unit 70 When attempting to insert the fitting portion 22 in an inverted position, each fitting rib 36 interferes with the first housing 20, restricting the fitting operation of the first housing 20 and the second housing 70.

[0032] As shown in Figure 8, the first wall 24 has a plurality of inclined surfaces 37, 38 on its inner surface (wall surface) facing the interior of the fitting portion 22, which slope downwards as they extend forward. Each inclined surface 37, 38 is formed along the entire length in the front-to-back direction on the inner surface of the first wall 24 (see Figure 4). The rear end of each inclined surface 37, 38 intersects with the fifth wall 28 at the far end of the fitting portion 22, and the front end of each inclined surface 37, 38 is located at the opening end of the fitting portion 22. Each inclined surface 37, 38 is inclined at a constant angle from the rear end to the front end of the first wall 24. Also, as shown in Figure 8, the width dimension (hereinafter referred to as "width dimension") of each inclined surface 37, 38 gradually decreases from the rear end to the front end.

[0033] In this first embodiment, each inclined surface 37, 38 consists of a one-side inclined surface 37 located on one side (right side in Figure 8) and a other-side inclined surface 38 located on the other side (left side in Figure 8) on the inner surface of the first wall 24. The width dimension of the one-side inclined surface 37 is larger overall than the width dimension of the other-side inclined surface 38.

[0034] Furthermore, as shown in Figure 8, the first wall 24 has flat creepage portions 39 and 41 along the front-rear and left-right directions, respectively, between the one-sided inclined surface portion 37 and the other-sided inclined surface portion 38, between the one-sided inclined surface portion 37 and the second wall 25, and between the other-sided inclined surface portion 38 and the third wall 26. The central creepage portion 39, located between the one-sided inclined surface portion 37 and the other-sided inclined surface portion 38, has a fitting rib 36 protruding from it. The width dimension of the central creepage portion 39 is larger than the width dimension of each end creepage portion 41. In contrast to the inclined surfaces 37 and 38, each creepage portion 39 and 41 gradually decreases in width from the rear end to the front end.

[0035] Furthermore, the first wall 24 has a plurality of second slope sections 42 that slope downward in the left-right direction from the surface sections 39, 41 to the slope sections 37, 38, between the surface sections 39, 41 and the slope sections 37, 38 which are adjacent to each other in the left-right direction. Each second slope section 42 is formed on both the left and right sides of one side slope section 37 and on both the left and right sides of the other side slope section 38.

[0036] <Function of the connector> The second housing 70 is fitted into the fitting portion 22 of the first housing 20 by the rotational operation of the lever 75 described above. With the lock arm 79 locked to the lock receiving portion 33 and the first housing 20 and the second housing 70 properly fitted together, although not shown in detail, each cam plate 76 of the lever 75 is housed between one of the left and right partition walls 35 and the second wall 25, and between the other left and right partition wall 35 and the third wall 26, respectively, except for the release operation portion 82 on the rear end side (see Figure 1).

[0037] As shown in Figure 2, the upper surface of the second housing 70 is positioned along the inner surface of the fourth wall 27, and the upper part of the plate surface of each cam plate 76 is positioned along the upper parts of the inner surfaces of the second wall 25 and the third wall 26, respectively. The lower part of the plate surface of each cam plate 76 and the lower parts of the inner surfaces of the second wall 25 and the third wall 26 are positioned opposite each other with a larger gap (clearance) between them compared to the gap between their upper parts.

[0038] Furthermore, the portions of the lower surface of the second housing 70 that are closer to the left and right sides are positioned along the central surface portion 39. The left and right ends of the lower surface of the second housing 70 are positioned opposite each other with a gap between them and the other side slope portions 38. The portions of the lower surface of the second housing 70 that are on one side are positioned opposite each other with a gap between them and the one side slope portion 37.

[0039] As shown in Figure 4, the gap formed between the lower surface of the second housing 70 and the inclined surfaces 37, 38 (inclined surface 37 in Figure 4) is configured as a drainage channel 60 in which the height G1 at the front end is greater than the height G2 at the rear end, and the gap gradually increases from height G2 to height G1.

[0040] When the connector 10 is mounted on a vehicle or the like, water may enter the inside of the connector 10 and travel between the inner surface of the mating portion 22 of the first housing 20 and the outer surface of the second housing 70 to reach the inner surface of the first wall 24. In this embodiment 1, water that enters the inside of the connector can fall along the drainage path 60 along the inclined portions 37 and 38 and be drained downward from the front end of the first wall 24. Alternatively, water can fall along the second inclined portion 42 from the creepage portion 39 and 41 side and be drained further through the inclined portions 37 and 38 to the front end of the first wall 24. Therefore, it is possible to prevent water from remaining inside the mating portion 22. Furthermore, since the water falls directly downward from the front end of the first wall 24, it is possible to reliably avoid contact with the circuit board 100, which is positioned with its plate surface facing the second wall 25 adjacent to one side of the first wall 24.

[0041] As described above, according to this embodiment 1, it is possible to prevent water that has entered the inside of the connector 10 from flowing to the circuit board 100 side. In particular, in this embodiment 1, since no waterproofing member such as a rubber stopper is provided in the connector 10, it is possible to provide a simple waterproof connector 10 that reduces the number of parts, simplifies the structure, and avoids increasing the size.

[0042] Furthermore, in this embodiment 1, since the inclined portions 37 and 38 are formed on the inner surface of the first wall 24 along its entire length in the front-to-back direction, even if water penetrates deep into the fitting portion 22, it can be drained from the rear end to the front end of the inclined portions 37 and 38.

[0043] Furthermore, although a gap is formed between the inner surface of the first wall 24 of the first housing 20 and the outer surface of the second housing 70, the outer surface of the second housing 70 is positioned along the creepage portion 39 of the first wall 24, so the second housing 70 can be fitted into the fitting portion 22 without rattling.

[0044] Furthermore, in this embodiment 1, since the width dimension of the front end of the sloped portion 37, 38 is smaller than the width dimension of the rear end of the sloped portion 37, 38, it is possible to create a structure in which water is less likely to enter the gap from the front end of the sloped portion 37, 38.

[0045] Furthermore, the central surface portion 39 is positioned between the adjacent one-sided slope portion 37 and the other-sided slope portion 38 in the left-right direction, and a second slope portion 42 is formed on the inner surface of the first wall 24, which slopes downward in the left-right direction from the surface portion 39 to the one-sided slope portion 37 and the other-sided slope portion 38. As a result, water from the surface portion 39 side can be drained from the second slope portion 42 through the respective slope portions 37 and 38.

[0046] Furthermore, in this embodiment 1, the circuit board 100 itself is positioned in a vertical orientation with its surface aligned vertically, so that water is less likely to accumulate on the surface of the circuit board 100. Moreover, since the vertical dimension of the second wall 25 is larger than the horizontal dimension of the first wall 24, the shielding effect of the second wall 25 can be enhanced.

[0047] [Other embodiments of this disclosure] Embodiment 1 disclosed herein should be considered in all respects to be illustrative and not restrictive. In the above embodiment 1, multiple inclined surfaces were formed on the inner surface of the first wall. In contrast, according to other embodiments, only one inclined surface may be formed on the inner surface of the first wall. Furthermore, three or more inclined surfaces may be formed on the inner surface of the first wall at intervals in the left-right direction. In addition, inclined surfaces may be formed at both the left and right ends of the inner surface of the first wall, or one may be formed on the left-right center side. In the first embodiment described above, a second wall was formed as a portion that shields the space between the inclined surface and the circuit board. In contrast, according to other embodiments, the second wall only needs to be a wall that intersects with and is adjacent to the first wall in the fitting portion, and that shields the space between the inclined surface and the circuit board. For example, if the third or fifth wall in the first embodiment is a closing wall located on the side facing the board surface of the circuit board, then such a third or fifth wall can also become the second wall in this disclosure. [Explanation of Symbols]

[0048] 10… Connectors 20…1st Housing 21…First terminal fitting 22…Matching part 23...Bulkhead 24…1st wall 25…Second wall 26…Third wall 27…4th wall 28…5th wall 29...Terminal connection section 31... Circuit board connection section 32…Flange section 33... Lock receiver 34... Kampin 35... Partition wall 36…Matching ribs 37...Sloping section on one side (slope section) 38...Other side slope (slope) 39… (Central side) surface area 41… (End) surface area 42...Second slope section 60... Drainage pathway (gap) 70...Second Housing 71...Second terminal fitting 72... Cavity 73…Retainer mounting hole 74...Spindle 75... Lever 76... Cam plate 77...Bearing hole 78... Cam groove 79 Lock Arm 81…Matching groove 82...Release operation section 100... Circuit board G1... Height of the front end G2... Height at the rear end W…Electric wire

Claims

1. The first housing and The present invention comprises a second housing that can be fitted into the first housing, The first housing has an opening facing forward in the direction of fitting into the second housing and a fitting portion that accommodates the second housing inside, Among the walls that define the fitting portion in the first housing, The lower first wall has a sloping surface on the wall surface facing the interior of the fitting portion that slopes downward as it goes forward, forming a gap between it and the second housing housed inside the fitting portion. The second wall, which intersects with and is adjacent to the first wall, is arranged on the side facing the surface of the circuit board so as to shield the circuit board from the inclined surface. The aforementioned inclined portion is formed from the rear end to the front end of the wall surface of the first wall with respect to the fitting direction, The inclined portion is formed on a part of the wall surface of the first wall, The connector wherein the first wall has a surface area adjacent to the inclined surface in the left-right direction, which is arranged along the second housing housed inside the fitting portion, on the other side of the wall surface.

2. The first housing and The present invention comprises a second housing that can be fitted into the first housing, The first housing has an opening facing forward in the direction of fitting into the second housing and a fitting portion that accommodates the second housing inside, Among the walls that define the fitting portion in the first housing, The lower first wall has a sloping surface on the wall surface facing the interior of the fitting portion that slopes downward as it goes forward, forming a gap between it and the second housing housed inside the fitting portion. The second wall, which intersects with and is adjacent to the first wall, is arranged on the side facing the surface of the circuit board so as to shield the circuit board from the inclined surface. The aforementioned inclined portion is formed from the rear end to the front end of the wall surface of the first wall with respect to the fitting direction, The inclined portion is formed on a part of the wall surface of the first wall, The first wall has a creepage portion on the other side of the wall surface that is arranged along the second housing which is housed inside the fitting portion, The front end of the sloped portion is narrower in the left-right direction than the rear end of the sloped portion. The aforementioned inclined portion is arranged on the wall surface of the first wall at intervals in the left-right direction, The surface portion is positioned between two adjacent slope portions in the left-right direction. A connector wherein the first wall has a second inclined portion on its surface that slopes downward in the left-right direction from the surface portion to the inclined portion.

3. The connector according to claim 1, wherein the front end of the slanted portion is narrower in the left-right direction than the rear end of the slanted portion.

4. The connector according to any one of claims 1 to 3, wherein the second wall is arranged vertically along the vertical direction which is the board surface direction of the circuit board and has a vertical dimension that is greater than the horizontal dimension of the first wall.

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