Male connector

1. A male connector, comprising:

a housing made of resin and to be fit to a female connector;

a male terminal made of metal, partially embedded in the housing, projecting forward in a connecting direction from the housing and formed into a tubular shape, resin being filled inside the male terminal; and

a resin cap configured to cover a tip of the male terminal on a front side in the connecting direction;

wherein:

the male terminal is provided with a communication opening in a part embedded in the housing, the communication opening allowing communication between inside and outside of the male terminal, and a projection is formed on an outer peripheral surface of the embedded part;

the resin constituting the housing and the resin filled inside the male terminal are integrated via the communication opening and the resin filled inside the male terminal and resin constituting the resin cap are integrated via an opening of the male terminal on the front side in the connecting direction; and

the housing is formed with a recess configured to expose the projection to outside;

the recess is formed in a forward facing surface of the housing in the connecting direction to expose the projection forward in the connecting direction; and

the male terminal includes a slit extending over an entire length at one position in a circumferential direction.

2. The male connector of claim 1 , wherein the projection is separated from an outer peripheral wall of the male terminal except at a base end and rises outward from the outer peripheral wall.

3. The male connector of claim 1 , wherein the projection is a convex part formed on the outer peripheral surface and a recess is formed at a position corresponding to the convex part in an inner peripheral surface of the male terminal.

4. The male connector of claim 1 , wherein the projection is separated from an outer peripheral wall of the male terminal except at a base end and protrudes outward via a step.

5. A male connector, comprising:

a housing made of resin and to be fit to a female connector;

a male terminal made of metal, partially embedded in the housing, projecting forward in a connecting direction from the housing and formed into a tubular shape, resin being filled inside the male terminal; and

a resin cap configured to cover a tip of the male terminal on a front side in the connecting direction;

wherein

the male terminal is provided with a communication opening in a part embedded in the housing, the communication opening allowing communication between inside and outside of the male terminal, and a projection is formed on an outer peripheral surface of the embedded part;

the resin constituting the housing and the resin filled inside the male terminal are integrated via the communication opening and the resin filled inside the male terminal and resin constituting the resin cap are integrated via an opening of the male terminal on the front side in the connecting direction;

the housing is formed with a recess configured to expose the projection to outside; and

the male terminal includes a slit extending over an entire length at one position in a circumferential direction.

6. The male connector of claim 5 , wherein the projection is separated from an outer peripheral wall of the male terminal except at a base end and rises outward from the outer peripheral wall.

7. The male connector of claim 5 , wherein the projection is a convex part formed on the outer peripheral surface and a recess is formed at a position corresponding to the convex part in an inner peripheral surface of the male terminal.

8. The male connector of claim 5 , wherein the projection is separated from an outer peripheral wall of the male terminal except at a base end and protrudes outward via a step.

9. A male connector, comprising:

a male terminal made of metal and having a tubular portion with opposite open front and rear ends, an intermediate portion extending from the rear end of the tubular portion, a connecting portion extending rearward from the intermediate portion, and a projection extending transversely from the tubular portion at a position spaced from the front end; and

a housing made of resin and including a terminal holding portion surrounding and engaging the intermediate portion of the male terminal, a back wall surrounding and engaging both the rear end of the tubular portion and a rear facing surface of the projection, and a tubular housing wall projecting forward from the back wall and spaced radially outward from the tubular portion of the male terminal, the resin of the housing further extending through the open rear end of the tubular portion of the male terminal and forward beyond the front end of the tubular portion of the male terminal to define a cap forward of the front end of the tubular portion of the male terminal, the back wall of the housing including a forwardly open recess that exposes a forwardly facing surface of the projection of the male terminal at a position inward of the tubular housing wall.

10. The male connector of claim 9 , wherein the projection is separated from an outer peripheral wall of the male terminal except at a base end and rises outward from the outer peripheral wall.

11. The male connector of claim 9 , wherein the projection is a convex part formed on the outer peripheral surface and a recess is formed at a position corresponding to the convex part in an inner peripheral surface of the male terminal.

12. The male connector of claim 9 , wherein the projection is separated from an outer peripheral wall of the male terminal except at a base end and protrudes outward via a step.