Abstract: A circuit module to be mounted on a system board having multiple through holes is disclosed. The circuit module includes a circuit board, multiple SIP connectors and multiple sheathing elements. Each of the SIP connectors includes a connecting part disposed at a first end thereof and fixed on the circuit board and an insertion part disposed at a second end thereof. Each of the sheathing elements includes a plurality of clamping arms and a receiving portion. The receiving portion is defined by the clamping arms for receiving the insertion part of a corresponding SIP connector. The insertion part is clamped by the clamping arms such that the sheathing element is fixed on the SIP connector. The sheathing element is sustained against a surface of the system board after the insertion part is inserted into a corresponding through hole of the system board, so that the support area between the SIP connector and the system board is increased.

Abstract: An electronic device with dual heat dissipating structures use in an electronic system is disclosed. The electronic device comprises the circuit board having the first and second heat producing surfaces, the major and auxiliary heat dissipating structures disposed on the first and second heat producing surfaces of the circuit board respectively, and the connective portion connecting the auxiliary heat dissipating structure and the major heat dissipating structure. The second heat producing surface of the circuit board is a high-temperatured area relative to the first heat producing surface of the circuit board in the electronic system, thereby the heat produced by the second heat producing surface of the circuit board can be conducted to the major heat dissipating structure through the auxiliary heat dissipating structure and the connective portion for heat dissipation.

Abstract: An electronic device with dual heat dissipating structures use in an electronic system is disclosed. The electronic device comprises the circuit board having the first and second heat producing surfaces, the major and auxiliary heat dissipating structures disposed on the first and second heat producing surfaces of the circuit board respectively, and the connective portion connecting the auxiliary heat dissipating structure and the major heat dissipating structure. The second heat producing surface of the circuit board is a high-temperatured area relative to the first heat producing surface of the circuit board in the electronic system, thereby the heat produced by the second heat producing surface of the circuit board can be conducted to the major heat dissipating structure through the auxiliary heat dissipating structure and the connective portion for heat dissipation.