Cover latch mechanism and portable electronic device using same

A portable electronic device, comprising:

• a housing defining a cavity enclosed by a first connecting interior wall, a second connecting interior wall, a third connecting interior wall and a fourth connecting interior wall, the first connecting interior wall facing the third connecting interior wall, and the second connecting interior wall facing the fourth connecting interior wall;
• a cover having a latching protrusion arranged thereon, wherein the cover and housing move relative to each other along a first axis during use of the device;
• and
• a latching member made of an elastic sheet including a frame shaped securing portion and two wave shaped latching arms, each wave shape latching arm having at least one peak and one trough, the frame shaped securing portion abutting the first connecting interior wall, the second connecting interior wall, the second connecting interior wall and the fourth connecting interior wall, the wave shaped latching arms spaced from the second connecting interior wall and the fourth connecting interior wall, distal ends of the wave shaped latching arms abutting against the third connecting interior wall, a latch spaced defined between the wave shaped latching arms and a release space defined in the securing portion;
• wherein the cover can be latched to the housing by a movement of the latching protrusion from the release space into the latch space along the first axis, and then be released from the housing by an opposite movement of the latching protrusion from the latch space into the release space and a movement of the latching protrusion from the release space along an axis perpendicular to the first axis, the three movements being caused by pushing, pulling, and lifting the cover relative to the housing.