Board-to-board connector

1. A connector comprising:

a connector body;

a terminal attached to the connector body; and

a reinforcing bracket attached to the connector body,

wherein:

the connector body includes a mating guide part formed at a longitudinal end, the mating guide part including a mating recess into which a counterpart mating guide part formed on a longitudinal end of a counterpart connector body of a counterpart connector is configured to be inserted,

the reinforcing bracket includes: a body part extending in a width direction of the connector body, the body part being attached to an outer side of an end wall part of the mating guide part; an end wall cover part connected to an upper end of the body part, the end wall cover part covering at least a part of an upper side and an inner side of the end wall part; and a pair of elastically deformable contact arms connected to a lower end of the end wall cover part,

each of the contact arms includes: a bottom surface part extending along a bottom surface of the mating recess; and an upright part extending upward from a tip of the bottom surface part,

the bottom surface part includes: a first part extending in the longitudinal direction from the lower end of the end wall cover part toward a center of the connector body; and a second part extending in the width direction from a tip of the first part toward an outer side of the connector body, whereby at least a portion of the second part is offset from the first part in the width direction, and

the upright part includes a contact projection formed at a tip thereof, the contact projection extending in the width direction toward the center of the connector body.

2. The connector according to claim 1 , wherein the reinforcing bracket includes a recess cover part connected to the lower end of the end wall cover part, the recess cover part covering at least a part of the bottom surface of the mating recess, and the recess cover part is disposed between the first parts of the pair of contact arms apart from the first parts in the width direction of the connector body, and is integrated with a part of a bottom plate of the mating recess on both sides of the recess cover part.

3. The connector according to claim 1 , wherein the bottom surface part is housed in a bottom plate opening formed in the bottom plate of the mating recess, and the upright part is housed in a side wall recess formed in an inner surface of a side wall of the mating recess.

4. The connector according to claim 1 , wherein the bottom surface part is substantially L-shaped when viewed in a vertical direction and is elastically deformable such that the second part is displaced outward in the width direction of the connector body, and the upright part is substantially S-shaped when viewed in a front-back direction and is elastically deformable such that the contact projection is displaced outward in the width direction of the connector body.

5. The connector according to claim 1 , wherein the reinforcing bracket further includes: a pair of left and right side covering parts connected to both ends of the body part, the side covering parts extending in the longitudinal direction toward the center of the connector body; a side wall upper cover part connected to an upper end of the side covering part, the side wall upper cover part covering at least a part of an upper side of a side wall of the mating recess; and a through-hole formed in the body part; and the reinforcing bracket is a member integrated with the connector body by insert molding.

6. The connector according to claim 5 , wherein the contact arms are not directly connected to any of the left and right side covering parts.

7. A connector pair comprising: the connector described in claim 1 , and a counterpart connector that mates with the connector.