Electronic apparatus and connecting device

A connecting device comprising:

• a first connecting part;
• a second connecting part;
• a rotary shaft;
• a first damping element;
• a second damping element;
• wherein,
• in the case that the first connecting part is rotated by a predefined angle around the rotary shaft in a first direction, the first damping element provides a first damping force against rotation in the first direction;
• in the case that the first connecting part is rotated by the predefined angle around the rotary shaft in a second direction, the second damping element provides a second damping force against rotation in the second direction, the first direction is opposite to the second direction, and the first damping force is different from the second damping force,
• wherein,
• the first connecting part is sleeved onto the rotary shaft and is stationary relative to the rotary shaft;
• the second connecting part is sleeved onto the rotary shaft and is rotatable relative to the rotary shaft;
• the first damping element is a first protrusion portion with a first inclination arranged at a first side of the first connecting part;
• the second damping element is a second protrusion portion with a second inclination arranged at the first side of the first connecting part, a face with the first inclination of the first protrusion portion and a face with the second inclination of the second protrusion portion form a first tooth space, the first inclination is smaller than the second inclination, and both the first inclination and the second inclination are angles relative to the axis of the rotary shaft;
• and
• a first tooth is provided at a first side of the second connecting part, the first side of the second connecting part is opposite to the first side of the first connecting part, and the first tooth engages with the first tooth space.

An electronic apparatus comprising:

• a first body;
• a second body;
• a connecting device through which the first body is rotatably connected with the second body;
• wherein the connecting device is configured to rotate in a first direction by overcoming a first damping force and is configured to rotate in a second direction opposite to the first direction by overcoming a second damping force different from the first damping force,
• wherein the connecting device comprises a first damping element configured to provide the first damping force and a second damping element configured to provide the second damping force,
• wherein the connecting device further comprises a first connecting part connected with the first body, a second connecting part connected with the second body, and a rotary shaft,
• wherein:
• the first connecting part is fixedly connected to the supporting frame, and the first connecting part is sleeved onto the rotary shaft and is stationary relative to the rotary shaft;
• the second connecting part is fixedly connected to the body, and the second connecting part is sleeved onto the rotary shaft and is rotatable relative to the rotary shaft;
• the first damping element is a first protrusion portion with a first inclination arranged at a first side of the first connecting part;
• the second damping element is a second protrusion portion with a second inclination arranged at the first side of the first connecting part, the face with the first inclination of the first protrusion portion and the face with the second inclination of the second protrusion portion form a first tooth space, wherein the first inclination is smaller than the second inclination, both the first inclination and the second inclination are angles relative to the axis of the rotary shaft;
• and
• a first tooth is provided at a first side of the second connecting part, the first side of the second connecting part is opposite to the first side of the first connecting part, and the first tooth engages with the first tooth space.