Molex battery connector placement problem

[JimQQ]

I have placed a male Molex battery connector (#78171-0002) on a PCB board but the problem is that the mating female connector (#78172-0002) does not clip securely on the male one. The result is that it comes out very easily by pulling it even with a little force.

Has anyone else had the same problem to give me a solution to hold tight the female with the male connectors?

Thank you

 

[Martaine2005]

Yes, a few times.
That’s why the manufacturer sometimes puts glue over the mating halves.
And also because different manufacturers have different tolerances.

 

[davenn]

I have placed a male Molex battery connector (#78171-0002) on a PCB board but the problem is that the mating female connector (#78172-0002) does not clip securely on the male one. The result is that it comes out very easily by pulling it even with a little force.

Has anyone else had the same problem to give me a solution to hold tight the female with the male connectors?

Thank you

A photo of what you are dealing with would help all of us suggest solutions for you

 

[Harald Kapp]

And also because different manufacturers have different tolerances.

Right. You should use male/female combinations from the same manufacturer. Even if another manufacturer states "compatible with ...". Real cross compatibility between connectors of the same type from different manufacturers is often not 100 % - unless stated explicitly otherwise (e.g. when the connectors are standardized by an international standard).

 

[JimQQ]

Thank you for your applies, I hope the photos will help you understand how easily the connectros disconnect from each other by simply moving them.
Please notice that the size of the male connector on the PCB board is around 4mm X 5mm.

 

[JimQQ]

Yes, a few times.
That’s why the manufacturer sometimes puts glue over the mating halves.
And also because different manufacturers have different tolerances.

Thank you for your immediate response. Can you point out to me more specifically where exactly I should apply the glue? You can use the photos I have already attached.

 

[Harald Kapp]

The result is that it comes out very easily by pulling it even with a little force.

That is per design, see the application note, page 4.

where exactly I should apply the glue?

Put hot glue on top of the connector after mating.