Connector

Abstract

To suppress rattling in a cavity of a terminal.SOLUTION: A connector comprises: a plurality of types of terminals 40 arranged in parallel in a first direction; a housing that includes a plurality of mold cavities 21 each of which houses each of the plurality of types of terminals 40, and into which each terminal 40 is inserted into the mold cavity 21 in a second direction crossing the first direction; and a retainer that is mounted in the housing from the side opposite to the terminal 40 in the second direction. In an inner wall of the mold cavity 21, a pair of lances 24 to be arranged in parallel in the first direction is formed. The plurality of types of terminals 40 includes at least an ellipse terminal 41 having an ellipse shape in a front view. In the ellipse terminal 41, a pair of engaged parts 41A holding the ellipse terminal 41 is formed by engagement of the pair of lances 24. The pair of lances 24 can be flexibly provided in the first direction. The retainer includes: a pair of flexible suppressing parts 35 suppressing each of deflection of the pair of lances 24 by entering into a deflection space of the pair of lances 24; and a pair of contact walls 36 in contact with the ellipse terminal 41 from both sides of the first direction.SELECTED DRAWING: Figure 7

Description

Technical Field

[0001] The present disclosure relates to a connector.

Background Art

[0002] Conventionally, as a connector that suppresses rattling of a terminal fitting in a cavity, a connector described in Japanese Patent Application Laid-Open No. 2001-110500 (hereinafter referred to as Patent Document 1) is known. This connector includes a female terminal fitting, a connector housing having a cavity in which the female terminal fitting is accommodated, and a retainer attached to the front end of the connector housing. The connector housing has a lance that locks the terminal fitting from behind. The retainer has a narrow-pressure contact portion that abuts against the lower surface of the terminal fitting and presses the terminal fitting against the ceiling wall of the cavity. When the terminal fitting is inserted into the cavity, the terminal fitting is primarily locked by the lance, and when the retainer is attached to the connector housing, a regulating piece provided on the retainer enters the deflection space of the lance, and the deflection deformation of the lance is restricted, so that the terminal fitting is doubly locked in a non-removable state. In this state, since the terminal fitting is pressed against the ceiling wall of the cavity by the narrow-pressure contact portion, rattling of the terminal fitting in the vertical direction is suppressed.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] However, the connector housing and the retainer are separate parts, and a tolerance is required to assemble them, so rattling corresponding to this tolerance has to be tolerated. Therefore, even if a narrow-pressure contact portion is provided on the retainer, it is difficult to suppress rattling of the terminal fitting in the vertical direction.

Means for Solving the Problems

[0005] The connector of the present disclosure has a plurality of types of terminals arranged side by side in a first direction, and a plurality of cavities for accommodating the plurality of types of terminals respectively. A housing into which the terminals are inserted into the cavities in a second direction intersecting the first direction, and a retainer attached to the housing from the side opposite to the terminals in the second direction. A pair of lances arranged side by side in the first direction are formed on the inner wall of the cavity. The plurality of types of terminals have at least one elliptical terminal having an elliptical shape when viewed from the front. A pair of engaged portions for holding the elliptical terminal are formed on the elliptical terminal by engaging with the pair of lances respectively. The pair of lances are bendable in the first direction. The retainer has a pair of bending suppressing portions for suppressing the bending of the pair of lances respectively by entering the bending spaces of the pair of lances, and a pair of contact walls contacting the elliptical terminal from both sides in the first direction. It is a connector.

Advantages of the Invention

[0006] According to the present disclosure, rattling of the terminals in the cavity can be suppressed.

Brief Description of the Drawings

[0007]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Figure 9

Figure 10

Figure 11

Figure 12

Mode for Carrying Out the Invention

[0008] [Description of Embodiments of the Present Disclosure] First, embodiments of the present disclosure will be listed and described. [1] The connector of the present disclosure includes a plurality of types of terminals arranged side by side in a first direction, a plurality of cavities respectively accommodating the plurality of types of terminals, a housing in which the terminals are inserted into the cavities in a second direction intersecting the first direction, and a retainer attached to the housing from the side opposite to the terminals in the second direction. A pair of lances arranged side by side in the first direction are formed on the inner wall of the cavity. The plurality of types of terminals include at least one elliptical terminal having an elliptical shape in a front view. A pair of locked portions for holding the elliptical terminal are formed on the elliptical terminal by locking the pair of lances respectively. The pair of lances are bendable in the first direction. The retainer has a pair of bend suppression portions that respectively enter the bending spaces of the pair of lances to suppress the bending of the pair of lances, and a pair of contact walls that contact the elliptical terminal from both sides in the first direction, and is a connector.

[0009] With such a configuration, a pair of contact walls contact the elliptical terminal from both sides in the first direction, thereby preventing the elliptical terminal from moving in the first direction. Since the pair of contact walls are provided on the retainer, regardless of the tolerance for assembling the retainer to the housing, by providing the pair of contact walls in accordance with the dimension of the elliptical terminal in the first direction, rattling of the elliptical terminal within the cavity can be suppressed.

[0010] [2] In the above [1], jig insertion holes for inserting a release jig for releasing the locking of the lance are respectively formed in the pair of contact walls, and on the inner walls of the pair of jig insertion holes, inclined surfaces approaching the elliptical terminal as the insertion depth of the release jig increases are respectively formed. This is preferable. In this way, when inserting the release jig into the jig insertion hole, by moving the tip of the release jig along the inclined surface, the insertion operation of the release jig can be guided, and it becomes easier to insert the tip of the release jig between the lance and the locked portion.

[0011] [3] In the above [1] or [2], the elliptical terminal has a pair of arc-shaped surfaces located at both ends in the first direction, the contact wall has a curved surface formed along the arc-shaped surface, and the curved surface preferably contacts the arc-shaped surface in the first direction and also contacts in a third direction intersecting both the first direction and the second direction. In this way, by the curved surface of each contact wall contacting the arc-shaped surface of the elliptical terminal, movement of the elliptical terminal in the first direction can be suppressed, and movement in the third direction intersecting both the first direction and the second direction can be suppressed.

[0012] [4] In any of the above [1] to [3], it is preferable that a tip tapered surface that moves away from the elliptical terminal toward the tip is formed at the tip of the deflection suppressing portion. In this way, when attaching the retainer to the housing, by the tip tapered surface moving along the end of the lance, it becomes easier to guide the deflection suppressing portion into the deflection space of the lance.

[0013] [5] In [2] above, it is preferable that the lance is formed with a locking portion that locks to the locked portion, an outer guiding wall that guides the contact wall to the side opposite to the locking portion, and an inner guiding wall that guides the releasing jig to the locking portion side. By doing so, the tip of each deflection suppressing portion moves along the outer guiding wall, so that each deflection suppressing portion is guided into the deflection space of each lance. Further, the tip of the releasing jig moves along the inner guiding wall, so that the releasing jig is guided between the locking portion and the locked portion.

[0014] [Details of Embodiments of the Present Disclosure] Embodiments of the present disclosure will be described below. The present disclosure is not limited to these examples, but is indicated by the claims, and is intended to include all modifications within the meaning and scope equivalent to the claims. In each drawing, for convenience of explanation, a part of the configuration may be shown exaggerated or simplified. Also, the dimensional ratios of each part may be different in each drawing. In this specification, "orthogonal" includes not only the case of being strictly orthogonal, but also the case of being generally orthogonal within the range where the actions and effects in the present embodiment are exhibited.

[0015] Further, in this specification, "opposite" means that surfaces or members are in a front-to-front position with respect to each other, and includes not only the case where they are completely in a front-to-front position, but also the case where they are partially in a front-to-front position. Further, in this specification, "opposite" includes both the case where a member different from the two parts is interposed between the two parts and the case where nothing is interposed between the two parts.

[0016] <Embodiment> Embodiments of the present disclosure will be described with reference to FIGS. 1 to 12. In the following description, the direction indicated by the arrow Z is the upward direction, the direction indicated by the arrow X is the front direction, and the direction indicated by the arrow Y is the left direction. The left-right direction is an example of the first direction. The front-rear direction is an example of the second direction. The up-down direction is an example of the third direction. Note that for a plurality of identical members, only some of the members may be labeled, and the labels of other members may be omitted.

[0017] (Female Connector 10) As shown in FIGS. 1 to 4, the female connector 10 includes a female housing 20 made of synthetic resin, a female retainer 30 made of synthetic resin, and a plurality of types of terminals 40.

[0018] (Terminal 40) The plurality of types of terminals 40 include an oval terminal 41 having an oval shape in a front view, a pair of large female terminals 51 located on both the left and right sides of the oval terminal 41, a plurality of small female terminals 52 located below the oval terminal 41 and the pair of large female terminals 51, and above the oval terminal 41, and a plurality of medium female terminals 53 located above the pair of large female terminals 51. The terminal 40 is formed by pressing a metal plate with excellent conductivity. The sizes of the terminals 40, in ascending order, are the small female terminals 52, the medium female terminals 53, and the large female terminals 51. Since the female connector 10 includes a plurality of types of terminals 40, it may also be referred to as a hybrid connector.

[0019] Each of the female terminals 51, 52, 53 includes a connecting portion 51A, 52A, 53A having a square tubular shape penetrating in the front-rear direction, and a barrel portion 51B, 52B, 53B arranged behind it. Inside the connecting portions 51A, 52A, 53A, an elastically deformable contact piece (not shown) is provided, and by elastically contacting a male terminal (not shown), each of the female terminals 51, 52, 53 and the male terminal are electrically connected. The barrel portions 51B, 52B, 53B have barrel pieces, and by caulking and crimping the barrel pieces to the core wire and the wire coating constituting the covered wire, each of the female terminals 51, 52, 53 and each covered wire are electrically and mechanically connected.

[0020] The elliptical terminal 41 has a pair of arcuate surfaces 45 located at both ends in the left - right direction. The elliptical terminal 41 also includes a pair of cylindrical terminals 42 connected to the terminals of a pair of cables through which differential signals are transmitted, an insulating member 43 that holds the pair of cylindrical terminals 42, and a conductive shield member 44 that surrounds the insulating member 43. On the upper surface of the shield member 44, a front - stopping protrusion for stopping the elliptical terminal 41 is formed to protrude upward. The arcuate surfaces 45 are formed at both ends in the left - right direction of the shield member 44. Since the elliptical terminal 41 is used for high - speed twisted - pair cables, the female connector 10 may also be referred to as an HMTD (High - Speed Modular Twisted - Pair Data) connector.

[0021] (Female housing 20) As shown in FIG. 12, the female housing 20 has a substantially square block shape. Inside the female housing 20, a plurality of cavities 21 for accommodating a plurality of terminals 40 are formed. Among the plurality of cavities 21, the cavity 21A for accommodating the elliptical terminal 41 is located at the central portion of the female housing 20 when viewed from the front. The elliptical terminal 41 is inserted into the cavity 21A from the rear.

[0022] The cavity 21A is formed between a pair of upper and lower terminal - accommodating walls 22. The terminal - accommodating walls 22 are formed along the upper and lower surfaces of the shield member 44 of the elliptical terminal 41 and the arcuate surfaces continuous with both sides thereof. Therefore, the elliptical terminal 41 is suppressed from moving in the up - down direction and also in the left - right direction by the pair of terminal - accommodating walls 22.

[0023] Inside the cavity 21A, as shown in FIG. 7, a pair of left and right lance 24 are provided. The lance 24 is in a cantilevered form protruding forward from the inner wall constituting the cavity 21A. The lance 24 is formed to be bendable in the left-right direction. Locking portions 24A are respectively formed on the opposing surfaces of the pair of lances 24 facing each other. On the elliptical terminal 41, a pair of locked portions 41A are formed which are arranged side by side in the left-right direction and hold the elliptical terminal 41 by locking the locking portions 24A of the pair of lances 24 respectively.

[0024] On both left and right side surfaces of the outer peripheral surface of the female housing 20, a pair of holding protrusions 23 are respectively formed. The female retainer 30 is movable between a temporary locking position (the position of the female retainer 30 shown in FIG. 8) and a main locking position (the position of the female retainer 30 shown in FIG. 7) with respect to the female housing 20. The female retainer 30 is configured to be held at each of the temporary locking position and the main locking position by locking to the pair of holding protrusions 23.

[0025] (Female retainer 30) As shown in FIG. 4, the female retainer 30 includes a female retainer main body 31 that constitutes the front surface of the female housing 20, a pair of mounting portions 32 arranged on both left and right sides of the female retainer main body 31, and a plurality of bending suppression portions 35 protruding rearward from the rear surface of the female retainer main body 31. The female retainer main body 31 has a plurality of terminal insertion openings 33 for introducing male terminals into the respective cavities 21. Since the die-casting direction when forming the lance 24 of the female housing 20 is forward, the front surface of the female housing 20 cannot be formed at the position that becomes the die-casting hole. For this reason, the front surface of the female housing 20 is constituted by the female retainer main body 31 of the female retainer 30.

[0026] As shown in Fig. 11, mounting protrusions 34 extending in the vertical direction are respectively formed on the opposing surfaces of a pair of mounting portions 32 facing each other. In the temporary locking position, the front retaining protrusion 23 shown in Fig. 12 is located on the front side of the mounting protrusion 34, and the rear retaining protrusion 23 is located on the rear side of the mounting protrusion 34, so that the female retainer 30 is held in the temporary locking position with its movement in the front-rear direction suppressed. In the main locking position, both the front retaining protrusion 23 and the rear retaining protrusion 23 shown in Fig. 12 are located on the front side of the mounting protrusion 34, so that the female retainer 30 is held in the main locking position with its forward movement suppressed.

[0027] As shown in Fig. 11, a pair of deflection suppressing portions 35 are formed on the rear surface of the female retainer body 31. The deflection suppressing portions 35 are configured to protrude rearward from the hole edge of the terminal insertion port 33. The pair of deflection suppressing portions 35 are arranged to face each other in the left-right direction. On the opposing surfaces of the pair of deflection suppressing portions 35 facing each other, a pair of contact walls 36 are formed to protrude in a direction approaching each other. The contact walls 36 are integrally formed with the deflection suppressing portions 35. Therefore, the deflection suppressing portions 35 are reinforced by the contact walls 36. The rear end of the contact wall 36 is located in front of the rear end of the deflection suppressing portion 35.

[0028] The contact wall 36 has a curved surface 36A formed along the arcuate surface 45 of the elliptical terminal 41. The curved surface 36A is in contact with the arcuate surface 45 almost entirely. As shown in Figs. 7 and 10, the pair of curved surfaces 36A are in contact with the pair of arcuate surfaces 45 in the main locking position. The curved surface 36A is in contact with the arcuate surface 45 in the left-right direction and in the vertical direction. Therefore, the elliptical terminal 41 does not rattle in the left-right direction and does not fall downward in the main locking position. Also, as shown in Fig. 8, since the pair of curved surfaces 36A are in partial contact with the pair of arcuate surfaces 45 even in the temporary locking position, the elliptical terminal 41 does not rattle in the left-right direction and does not fall downward in the temporary locking position.

[0029] As described above, since the deflection suppression portion 35 and the contact wall 36 are integrally formed, the deflection suppression portion 35 is reinforced by the contact wall 36. A jig insertion hole 37 is formed at a position on the contact wall 36 close to the deflection suppression portion 35. The jig insertion hole 37 is formed to penetrate in the front-rear direction. As shown in FIG. 9, a release jig 60 can be inserted into the jig insertion hole 37 from the front.

[0030] On the inner wall of the jig insertion hole 37, an inclined surface 37A is formed which approaches the elliptical terminal 41 as the insertion depth of the release jig 60 increases. The inclined surface 37A is formed on the side wall of the inner wall of the jig insertion hole 37 on the side of the deflection suppression portion 35. When the tip of the release jig 60 is moved along the inclined surface 37A, it is guided into a normal insertion posture so as to approach the elliptical terminal 41, so that the release jig 60 can be smoothly inserted into the jig insertion hole 37. In addition, by connecting a pair of release jigs 60 inserted into the pair of jig insertion holes 37 to form a U-shaped release jig, the release jig 60 may be smoothly inserted into the jig insertion hole 37.

[0031] At the temporary locking position, since the deflection suppression portion 35 is in a state of retreating from the deflection space of the lance 24, when the female retainer 30 is pushed into the main locking position, the tip of the deflection suppression portion 35 may interfere with the protruding end portion of the lance 24. To avoid such a situation, as shown in FIG. 9, a tip tapered surface 35A that moves away from the elliptical terminal 41 toward the tip is formed at the tip portion of the deflection suppression portion 35. In this way, when the female retainer 30 is pushed from the temporary locking position to the main locking position, the tip tapered surface 35A moves along the protruding end portion of the lance 24, so that the deflection suppression portion 35 can be smoothly guided into the deflection space of the lance 24.

[0032] On the protruding end portion of the lance 24, an outer guiding wall 24B for guiding the contact wall 36 to the outside of the lance 24 (the side away from the elliptical terminal 41) and an inner guiding wall 24C for guiding the release jig 60 to the inside of the lance 24 (the side approaching the elliptical terminal 41) are formed. In other words, as shown in FIG. 9, the inner guiding wall 24C is arranged on the side of the elliptical terminal 41, and the outer guiding wall 24B is arranged on the side of the deflection space of the lance 24.

[0033] When the tip of the release jig 60 is guided inward while being in contact with the inner guide wall 24C, the tip of the release jig 60 can be easily inserted between the locking portion 24A of the lance 24 and the locked portion 41A of the elliptical terminal 41. Therefore, it becomes easy to bend the lance 24 outward, and it becomes easy to release the locking between the locking portion 24A of the lance 24 and the locked portion 41A of the elliptical terminal 41.

[0034] Also, when the tip tapered surface 35A of the bending suppression portion 35 is guided outward while being in contact with the outer guide wall 24B, the bending suppression portion 35 can be easily inserted into the bending space of the lance 24. When the bending suppression portion 35 enters the bending space of the lance 24, the bending of the lance 24 is suppressed, so that the elliptical terminal 41 is double-locked by the lance 24 and the bending suppression portion 35.

[0035] (Function and Effect of Embodiment) (1) The female connector 10 of the embodiment includes a plurality of types of terminals 40 arranged side by side in the left-right direction, a plurality of cavities 21 that respectively accommodate the plurality of types of terminals 40, a female housing 20 in which the terminals 40 are inserted into the cavities 21 in the front-rear direction intersecting the left-right direction, and a female retainer 30 that is attached to the female housing 20 from the side opposite to the terminals 40 in the front-rear direction. A pair of lances 24 arranged side by side in the left-right direction are formed on the inner wall of the cavity 21. The plurality of types of terminals 40 each have at least one elliptical terminal 41 having an elliptical shape in a front view. A pair of locked portions 41A for holding the elliptical terminal 41 are formed on the elliptical terminal 41 by locking the pair of lances 24 respectively. The pair of lances 24 are bendable in the left-right direction. The female retainer 30 has a pair of bending suppression portions 35 that respectively enter the bending spaces of the pair of lances 24 to suppress the bending of the pair of lances 24, and a pair of contact walls 36 that contact the elliptical terminal 41 from both sides in the left-right direction.

[0036] With such a configuration, since a pair of contact walls 36 contact the elliptical terminal 41 from both sides in the left - right direction, the elliptical terminal 41 is prevented from moving in the left - right direction. Since the pair of contact walls 36 are provided on the female retainer 30, regardless of the tolerance for assembling the female retainer 30 to the female housing 20, by providing the pair of contact walls 36 according to the left - right dimension of the elliptical terminal 41, rattling of the elliptical terminal 41 within the cavity 21 can be suppressed.

[0037] (2) Each of the pair of contact walls 36 is formed with a jig insertion hole 37 into which a release jig 60 for releasing the locking of the lance 24 is inserted. On the inner walls of the pair of jig insertion holes 37, inclined surfaces 37A that approach the elliptical terminal 41 as the insertion depth of the release jig 60 increases are respectively formed. In this way, when the release jig 60 is inserted into the jig insertion hole 37, by moving the tip of the release jig 60 along the inclined surface 37A, the insertion operation of the release jig 60 can be guided, and it becomes easier to insert the tip of the release jig 60 between the lance 24 and the engaged portion 41A.

[0038] (3) The elliptical terminal 41 has a pair of arcuate surfaces 45 located at both ends in the left - right direction. The contact wall 36 has a curved surface 36A formed along the arcuate surface 45. The curved surface 36A preferably contacts the arcuate surface 45 in the left - right direction and also contacts in the up - down direction that intersects both the left - right direction and the front - rear direction. In this way, when the curved surface 36A of each contact wall 36 contacts the arcuate surface 45 of the elliptical terminal 41, movement of the elliptical terminal 41 in the left - right direction can be suppressed, and movement in the up - down direction that intersects both the left - right direction and the front - rear direction can be suppressed.

[0039] (4) It is preferable that a tip tapered surface 35A that moves away from the elliptical terminal 41 toward the tip is formed at the tip of the deflection suppression portion 35. In this way, when the female retainer 30 is attached to the female housing 20, by the tip tapered surface 35A moving along the end of the lance 24, it becomes easier to guide the deflection suppression portion 35 through the deflection space of the lance 24.

[0040] (5) The lance 24 preferably has a locking portion 24A that locks to the locked portion 41A, an outer guiding wall 24B that guides the contact wall 36 to the side opposite to the locking portion 24A, and an inner guiding wall 24C that guides the releasing jig 60 to the locking portion 24A side. In this way, as the tip of each deflection suppressing portion 35 moves along the outer guiding wall 24B, each deflection suppressing portion 35 is guided into the deflection space of each lance 24. Also, as the tip of the releasing jig 60 moves along the inner guiding wall 24C, the releasing jig 60 is guided between the locking portion 24A and the locked portion 41A.

[0041] (Other Embodiments) The above embodiment can be implemented with the following modifications. The above embodiment and the following modification examples can be implemented in combination with each other as long as they do not technically conflict.

[0042] · In the above embodiment, a female connector having a female terminal 40 as a connector is exemplified, but a male connector having a male terminal may also be used.

[0043] · In the above embodiment, the pair of contact walls 36 are in contact with the elliptical terminal 41 at both the temporary locking position and the main locking position, but the pair of contact walls may be in contact with the elliptical terminal only at the main locking position.

[0044] · In the above embodiment, the pair of lances 24 are arranged side by side in the left - right direction, but the pair of lances may be arranged side by side in the up - down direction.

[0045] · In the above embodiment, the jig insertion hole 37 is formed in the female retainer 30, but the jig insertion hole may be formed in the female housing.

[0046] · In the above embodiment, the contact wall 36 has an arcuate curved surface 36A, but the contact wall may have a portal - shaped support surface.

[0047] ·In the above embodiment, both the tip tapered surface 35A and the outer guiding wall 24B are formed, but only one of the tip tapered surface 35A and the outer guiding wall 24B may be formed.

[0048] ·In the above embodiment, both the inclined surface 37A and the inner guiding wall 24C are formed, but only one of the inclined surface 37A and the inner guiding wall 24C may be formed.

Description of Reference Numerals

[0049] 10: Female connector 20: Female housing 21: Cavity 21A: Cavity 22: Terminal accommodating wall 23: Holding projection 24: Lance 24A: Locking portion 24B: Outer guiding wall 24C: Inner guiding wall 30: Female retainer 31: Female retainer body 32: Mounting portion 33: Terminal insertion port 34: Mounting projection 35: Bending suppression portion 35A: Tip tapered surface 36: Contact wall 36A: Curved surface 37: Fixture insertion hole 37A: Inclined surface 40: Terminal 41: Oval terminal 41A: Locked portion 42: Cylindrical terminal 43: Insulating member 44: Shielding member 45: Arc-shaped surface 51: Large female terminal 51A: Connection portion 51B: Barrel portion 52: Small female terminal 52A: Connection portion 52B: Barrel portion 53: Medium-sized female terminal 53A: Connection portion 53B: Barrel part 60: Release jig

Claims

1. A plurality of types of terminals arranged in a first direction, a housing having a plurality of cavities for accommodating the plurality of types of terminals respectively, and the terminals being inserted into the cavities in a second direction intersecting the first direction, a retainer mounted on the housing from the side opposite to the terminals in the second direction, and a pair of lances arranged in the first direction are formed on the inner wall of the cavity, the plurality of types of terminals have at least one elliptical terminal having an elliptical shape in a front view, a pair of engaged portions for holding the elliptical terminal are formed on the elliptical terminal by the pair of lances being respectively engaged therewith, the pair of lances are made flexible in the first direction, the retainer has a pair of deflection suppressing portions for suppressing the deflection of the pair of lances respectively by entering the deflection spaces of the pair of lances, and a pair of contact walls contacting the elliptical terminal from both sides in the first direction, a connector.

2. Fixture insertion holes for inserting a release jig for releasing the engagement of the lance are respectively formed in the pair of contact walls, and inclined surfaces approaching the elliptical terminal as the insertion depth of the release jig increases are respectively formed on the inner walls of the pair of fixture insertion holes. The connector according to Claim 1.

3. the elliptical terminal has a pair of arcuate surfaces located at both ends in the first direction, the contact wall has a curved surface formed along the arcuate surface, the curved surface contacts the arcuate surface in the first direction and contacts in a third direction intersecting both the first direction and the second direction. The connector according to Claim 1 or Claim 2.

4. A tip tapered surface that moves away from the elliptical terminal toward the tip is formed at the tip of the deflection suppressing portion. The connector according to Claim 1 or Claim 2.

5. The lance is formed with an engaging portion for engaging with the engaged portion, an outer guiding wall for guiding the contact wall to the side opposite to the engaging portion, and an inner guiding wall for guiding the release jig to the engaging portion side. The connector according to Claim 2.

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