Abstract: A heat dissipation device includes a heat absorbing member being provided with a first accommodating chamber for accommodating a working medium and a mounting hole in communication with the first accommodating chamber; and a valve installed in the mounting hole. The valve is adjustable between a first state and a second state to change the first accommodating chamber between a closed state and an open state. When the first accommodating chamber is in the open state, the first accommodating chamber is in fluid communication with outside so that the working medium can be injected into or discharged from the first accommodating chamber, so as to adjust the amount of the working medium in the first accommodating chamber. Thus, the heat dissipation device is applicable to various applications with different heat dissipating requirements.

Abstract: A heat dissipation device includes a heat absorbing member being provided with a first accommodating chamber for accommodating a working medium and a mounting hole in communication with the first accommodating chamber; and a valve installed in the mounting hole. The valve is adjustable between a first state and a second state to change the first accommodating chamber between a closed state and an open state. When the first accommodating chamber is in the open state, the first accommodating chamber is in fluid communication with outside so that the working medium can be injected into or discharged from the first accommodating chamber, so as to adjust the amount of the working medium in the first accommodating chamber. Thus, the heat dissipation device is applicable to various applications with different heat dissipating requirements.