VAPOR CHAMBER STRUCTURE

A vapor chamber structure includes a main body. The main body has multiple independent heat dissipation blocks. Each of the heat dissipation blocks has an internal independent airtight chamber. A capillary structure is disposed on an inner wall face of the airtight chamber. A working fluid is filled in the airtight chamber. Multiple connection bodies are disposed between the independent heat dissipation blocks to connect the independent heat dissipation blocks with each other. At least one heat insulation penetrating slot is formed between each two adjacent connection bodies to separate the heat dissipation blocks from each other so as to achieve heat insulation effect. By means of the heat insulation penetrating slots formed on the connection bodies, the respectively airtight chambers can independently conduct heat without transferring heat to each other.

This application claims the priority benefit of Taiwan patent application number 111123897 filed on Jun. 27, 2022.

BACKGROUND OF THE INVENTION

1. Field of the Invention

The present invention relates generally to a vapor chamber structure, and more particularly to a vapor chamber structure having multiple independently arranged airtight chambers.

2. Description of the Related Art

In operation or calculation of a common electronic product (such as an intelligent device, a computer, a server or the like device with operation ability), the electronic product often generates heat due to the operation or the calculation. The more powerful the operation ability of the electronic device is, the faster the electronic device generates heat. In order to quickly conduct out the heat so as to avoid shutdown of the electronic device due to the heat, an active heat dissipation device and a passive heat dissipation device are often used to dissipate the heat.

In general, both the active heat dissipation device and passive heat dissipation device employ heat conduction components to dissipate the heat, wherein vapor chambers and heat pipes are most popularly used heat conduction components. The vapor chamber or the heat pipe has at least one internal vacuumed closed chamber. A capillary structure is disposed in the chamber and a working fluid is filled in the chamber to perform two-phase fluid heat exchange in the chamber for conducting the heat.

However, a conventional vapor chamber simply has one single vacuumed closed chamber for conducting heat. When the working range of the vapor chamber is larger, the heat conduction areas of the vapor chamber will too much spread and uneven. This will lead to deterioration of the heat conduction efficiency of the vapor chamber. In addition, there is a conventional vapor chamber, on which multiple vacuumed closed chambers are arranged. The vacuumed closed chambers are spaced from each other by quite short distances. The lip edges (sealed edges) for closing the chambers are apt to transfer heat to each other and affect each other. This causes deterioration of the heat conduction efficiency of the entire vapor chamber.

Furthermore, the vapor chamber with multiple closed chambers can provide multiple independent heat conduction blocks for multiple independent heat sources. However, the respective independent heat sources have different heights, while the heat conduction face of the vapor chamber is a plane plate body. Under such circumstance, the vapor chamber can hardly snugly attach to all the heat sources with different heights to conduct the heat generated by the heat sources.

In case of multiple heat sources with different heights, it is necessary to selectively employ multiple vapor chambers or heat pipes respectively in adaptation to the heat sources so as to contact the heat sources and conduct the heat generated by the heat sources. The peripheries of all the vapor chambers have lip edges. When arranging the vapor chambers, the lip edges of the vapor chambers will interfere with each other to cause trouble in arrangement. In the case that the vapor chambers are stacked, the total height will be increased or thermal resistance will be produced. Therefore, it is quite inconvenient to use the conventional vapor chambers.

It is therefore tried by the applicant to provide a vapor chamber structure to solve the above problem existing in the conventional vapor chambers. The vapor chamber structure singly has multiple independent chambers. The independent chambers can independently conduct heat without affecting each other. Therefore, the heat conduction areas of the vapor chamber are even. The vapor chamber is applicable to multiple heat sources with different heights to conduct the heat generated by the heat sources.

SUMMARY OF THE INVENTION

It is therefore a primary object of the present invention to provide a vapor chamber structure, which singly has multiple independent airtight chambers.

It is a further object of the present invention to provide the above vapor chamber structure, in which the respective airtight chambers have equal or unequal heights or capacities.

To achieve the above and other objects, the vapor chamber structure of the present invention includes a main body. The main body has multiple independent heat dissipation blocks. Each of the heat dissipation blocks has an internal independent airtight chamber. A capillary structure is disposed on an inner wall face of the airtight chamber. A working fluid is filled in the airtight chamber. Multiple connection bodies are disposed between the independent heat dissipation blocks to connect the independent heat dissipation blocks with each other. The vapor chamber structure is characterized in that at least one heat insulation penetrating slot is formed between each two adjacent connection bodies. The heat insulation penetrating slot separates the heat dissipation blocks from each other so as to achieve heat insulation and heat interruption effect. At least one side of each of the heat dissipation blocks is formed with a heated section correspondingly in contact with at least one heat source for conducting heat.

At least one heat insulation penetrating slot is formed on the connection body connected between the adjacent airtight chambers. Therefore, the heat transfer medium and path between the respective independent airtight chambers of the main body are reduced. Accordingly, the heat conduction between the airtight chambers is reduced, whereby the adjacent airtight chambers have independent heat conduction areas without interfering with each other. In addition, the heated sections are recessed or raised so as to snugly contact the heat sources with different heights at the same time to conduct the heat. Accordingly, the vapor chamber structure of the present invention can singly provide multiple independent airtight chambers to conduct the heat generated by the heat sources with different heights.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

Please refer toFIGS.1and2.FIG.1is a perspective exploded view of the vapor chamber structure of the present invention.FIG.2is a perspective assembled view of the vapor chamber structure of the present invention. As shown in the drawing, the vapor chamber structure of the present invention includes a main body1.

The main body1has multiple independent heat dissipation blocks2. Each of the heat dissipation blocks2has an internal independent airtight chamber21. A capillary structure22is disposed on an inner wall face of the airtight chamber21. A working fluid23is filled in the airtight chamber21. Multiple connection bodies3are disposed between the independent heat dissipation blocks2to connect the independent heat dissipation blocks2with each other. The vapor chamber structure of the present invention is characterized in that each two adjacent connection bodies3together define therebetween at least one heat insulation penetrating slot31to separate (isolate) the heat dissipation blocks2from each other so as to achieve heat insulation and heat interruption effect. At least one side of each of the heat dissipation blocks2is formed with a heated section4correspondingly in contact with at least one heat source5for conducting heat.

The connection bodies3serve to serially connect (link) two adjacent independent heat dissipation blocks2with each other, whereby the heat dissipation blocks2are still integrated as a main body1to facilitate installation, transfer and manufacturing. Moreover, the heat insulation penetrating slot31is disposed between the two connection bodies3so as to reduce or cut off the heat transfer medium between the adjacent heat dissipation blocks2. Accordingly, heat isolation, heat insulation or heat interruption effect is achieved between the adjacent heat dissipation blocks2so as to avoid interference between the heat dissipation blocks2in heat conduction.

The main body1has a first plate body11and a second plate body12. The first plate body11is formed with multiple raised sections defining multiple raised section spaces111. The first and second plate bodies11,12are attached to each other to close the raised section spaces111so as to form the aforesaid airtight chambers21. The second plate body12has an outer face121and an inner face122. The outer face121is attached to the heat source5. The inner face122is correspondingly connected with the first plate body11. The outer face121is recessed toward the inner face122to form the heated section4. Alternatively, the outer face121is outward raised in a direction away from the airtight chamber21to form the heated section4. The raised or recessed heat sections4are positioned corresponding to different heights of heat sources5. In addition, the airtight chambers21of the heat dissipation blocks2are connected with at least one water-filling air-sucking tube24.

Please now refer toFIGS.3and4. The heat sources corresponding to the airtight chambers21can have equal heights or unequal heights. The airtight chambers21can have different capacities corresponding to the different heat generation powers of the heat sources5for heat exchange. In addition, the heated sections4provide different depths of recessed spaces or different heights of raised platforms so as to snugly receive or attach to the corresponding heat sources5with different heights. In the case that the heated section4is recessed from the outer face121of the second plate body12in a direction toward the airtight chamber21, the heated section4has a recessed space in adaptation to a higher heat source5. Alternatively, in the case that the heated section4is raised from the outer face121of the second plate body12in a direction away from the airtight chamber21, the heated section4is an outward raised platform in adaptation to a lower heat source5. Accordingly, the heated sections4can respectively fully snugly attach to the heat sources5with different heights at the same time so as to transfer the heat to the airtight chambers21.

Moreover, the airtight chambers21can selectively have equal or unequal capacities for correspondingly transferring the heat generated by the heat sources5with different heat generation powers. An airtight chamber21with a larger capacity is applied to a heat source5with higher heat generation power, whereby the airtight chamber21has higher heat dissipation or heat conduction efficiency sufficient for transferring the heat generated by the heat source5. Similarly, an airtight chamber21with a smaller capacity is applied to a heat source5with lower heat generation power, whereby the airtight chamber21can satisfy lower heat transfer requirement and the thickness of the main body1can be reduced.

In the present invention, the heat insulation penetrating slots31are formed on the connection bodies3connected between the adjacent airtight chambers21. Therefore, the connection sections between the respectively independent airtight chambers21of the main body1are greatly reduced so that the heat transfer medium and path between the independent airtight chambers21are reduced. Accordingly, the heat conduction between the airtight chambers21is avoided, whereby the adjacent airtight chambers21have independent heat conduction areas without interfering with each other.

The present invention has been described with the above embodiments thereof and it is understood that many changes and modifications in such as the form or layout pattern or practicing step of the above 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.