Patent Application
20100243204
The present invention relates to a heat radiating unit for adapter, and more particularly to a heat radiating unit for adapter that can effectively dissipate heat produced by an adapter to thereby enable prolonged usable life and upgraded power transmission efficiency of the adapter.
To connect the currently commercially available 3C products, namely, communication, computer, and consumer electronics products, to an external power supply, an adapter is needed in most cases to convert alternating current into direct current for use by the 3C products. When the electric current flows through the adapter, it will cause the metal parts of the electronic elements inside the adapter to produce heat, which will adversely affect the power transmission efficiency of the adapter. A main cause of metal resistance is the energy generated during the directional movement of free electrons under the influence of an external electric field. Due to this energy, the free electrons tend to directly transit to a higher energy level. Electrons at the higher energy level are unstable, they will transit to a lower energy level through electromagnetic radiation, and the directional movement of electrons under the influence of an external electric field is interfered. The energy transferred to the electrons under the influence of the external electric field is radiated, and the electric energy is transformed into heat energy. The higher the temperature of a conductor is, the more free electrons are involved in the electromagnetic radiation. Therefore, the free electrons in directional movement under the influence of the external electric field are apt to transit to a higher energy level and return to the stationary state through electromagnetic radiation. That is why the electrical conductor will have increased resistance when the temperature thereof is increased.
Therefore, when the heat produced by an adapter is not properly dissipated, the power transmission efficiency and the voltage conversion efficiency of the adapter will be adversely affected.
In brief, the conventional adapter has the following disadvantages: (1) poor heat dissipating efficiency; (2) low power transmission efficiency; and (3) being subject to easy damage of internal components.
It is therefore tried by the inventor to develop a heat radiating unit for adapter to overcome the drawbacks of the conventional adapter.
A primary object of the present invention is to provide a heat radiating unit for adapter, so that heat produced by an adapter can be effectively dissipated to prolong the usable life of the adapter.
To achieve the above and other objects, the heat radiating unit for adapter according to the present invention includes at least one receiving portion and a heat radiating portion. The receiving portion has at least one receiving space and at least one recess. The receiving space can receive at least one adapter therein, and the recess is communicating with the receiving space and the heat radiating portion. The heat radiating portion includes a plurality of radiating fins, which are extended from an outer surface of the receiving portion in directions opposite to the receiving portion. A heat-dissipating fluid passage is defined between any two adjacent radiating fins for a heat-dissipating fluid to flow therethrough. A pusher can be movably disposed in the receiving space. The pusher includes at least one adjusting section for adjusting the pusher to a position adapted to firmly press against the adapter disposed in the receiving space. The pusher can be a flat plate, which has a first flat side facing toward the adapter and an opposite second side having the adjusting section connected thereto. The adjusting section includes a rod and an adjusting member. The rod is provided on an outer surface with external threads, and has a first end connected to the pusher and a second end outward extended through the receiving portion and the heat radiating portion. The adjusting member has a second end fitted around the rod and is provided on an inner surface with internal threads to mesh with the external threads on the rod. A first end of the adjusting member is provided with a lip portion for bearing against the heat radiating portion. With the heat radiating unit, heat produced by an adapter disposed in the heat radiating unit can be radiated via the radiating fins to diffuse into ambient environment to achieve the purpose of heat dissipation. Therefore, the adapter can have better electric power transmission efficiency.
In brief, the heat radiating unit for adapter according to the present invention has the following advantages: (1) extending the usable life of the adapter; and (2) enabling the adapter to have better electric power transmission efficiency.
The structure and the technical means adopted by the present invention to achieve the above and other objects can be best understood by referring to the following detailed description of the preferred embodiments and the accompanying drawings, wherein
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The present invention has been described with some preferred embodiments thereof and it is understood that many changes and modifications in the described embodiments can be carried out without departing from the scope and the spirit of the invention that is intended to be limited only by the appended claims.
