CN212413660U - Ultra-thin heat-conducting fin with novel sealing cover - Google Patents
Ultra-thin heat-conducting fin with novel sealing cover Download PDFInfo
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- CN212413660U CN212413660U CN202021164115.1U CN202021164115U CN212413660U CN 212413660 U CN212413660 U CN 212413660U CN 202021164115 U CN202021164115 U CN 202021164115U CN 212413660 U CN212413660 U CN 212413660U
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Abstract
The utility model discloses an ultra-thin heat conducting fin with a novel sealing cover, which comprises a cavity cover (1) and a sealing cover (2); the top of the cavity cover (1) is hermetically connected with the sealing cover (2); a vacuum sealing cavity is formed between the cavity cover (1) and the sealing cover (2); the inner side surface of the sealing cover (2) facing the cavity cover (1) is provided with a plurality of liquid suction grooves (4); a tail pipe insertion opening is reserved in the middle of the rear end of the top of the cavity cover (1); the front end of a mouse tail pipe (3) is inserted into the mouse tail pipe insertion opening; a mouse tail pipe (3) for injecting liquid into the vacuum sealing cavity; the bottom surface of the cavity cover (1) is a heating surface of the ultrathin heat conducting sheet and is used for contacting with an external heat source; the bottom surface of the cavity cover (1) is a smooth plane. The utility model discloses structural design science, through the structure of improving the closing cap, set up many imbibition recesses at the closing cap towards the medial surface of cavity lid, can realize good radiating effect, have the production practice meaning of great importance.
Description
Technical Field
The utility model relates to a heat conduction technical field especially relates to an ultra-thin conducting strip with novel closing cap.
Background
An ultra-thin heat conducting sheet (e.g., a uniform temperature plate) is used as an ultra-thin heat conducting device, and is suitable for heat dissipation requirements in narrow environments with strictly limited space due to the two-dimensional characteristics of the ultra-thin heat conducting sheet in heat conduction. Such as notebook computers, computer workstations, network servers, mobile phones and other equipment, is suitable for working environments with high node temperature and needing rapid distributed cooling, such as heat dissipation of high-power LEDs, semiconductor refrigeration wafers, thermal power generation and the like. Its advantages are low start-up temp, high heat transfer speed, high uniform temp performance, high output power, low cost, long service life and light weight.
The ultra-thin heat conducting fin (such as a uniform temperature plate) is a vacuum cavity uniform temperature plate, the basic working principle of the ultra-thin heat conducting fin is the same as that of the uniform temperature plate, the ultra-thin heat conducting fin is provided with a vacuum sealing cavity body filled with liquid, after the liquid at the bottom (namely a heated surface) of the vacuum sealing cavity body absorbs the heat of an external heat source (such as a chip), the liquid is heated and can be evaporated into gas, the gas rises to a sealing cover and contacts with a capillary structure on the sealing cover to form backflow. The capillary structure mainly realizes liquid absorption, and gas formed by evaporation forms liquid through heat and cold exchange and then falls back to the heating surface at the bottom of the vacuum seal cavity, so that the ultrathin heat conducting strip realizes heat dissipation through liquid gas-liquid change (namely, gas is condensed into liquid).
The sealing cover is a part of the ultrathin heat conducting strip, is of a flat plate structure, and adopts a sintered powder form to realize a capillary structure (namely, form micropores) on the surface of the sealing cover, so that the liquid absorption function of the capillary structure is exerted, and condensation backflow is realized.
However, when the existing sealing cover of the ultrathin heat conducting fin adopts a powder sintering mode, the sintering temperature is high, so that the sealing cover is easy to deform, the sintering effect cannot be guaranteed, the shape of the surface of the sealing cover is easy to damage, the production quality consistency of the sealing cover of the ultrathin heat conducting fin cannot be guaranteed, and the overall production quality of the ultrathin heat conducting fin is finally influenced.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an ultra-thin conducting strip with novel closing cap to the technical defect that prior art exists.
Therefore, the utility model provides an ultrathin heat conducting fin with a novel sealing cover, which comprises a cavity cover and a sealing cover;
the top of the cavity cover is hermetically connected with the sealing cover;
a vacuum sealing cavity is formed between the cavity cover and the sealing cover;
the inner side surface of the sealing cover facing the cavity cover is provided with a plurality of imbibing grooves;
a tail pipe insertion opening is reserved in the middle of the rear end of the top of the cavity cover;
the front end of the mouse tail pipe is inserted into the mouse tail pipe insertion opening;
the mouse tail pipe is used for injecting liquid into the vacuum sealed cavity;
the bottom surface of the cavity cover is a heating surface of the ultrathin heat conducting fin and is used for contacting with an external heat source;
the bottom surface of the cavity cover is a smooth plane;
wherein, the peripheral edge of the top of the cavity cover is provided with a side frame in a surrounding way;
the top parts of the four corners of the side frame are respectively provided with a limiting lug;
the sealing cover is provided with a limiting opening at the position corresponding to each limiting lug;
the shape and size of the limit bump are correspondingly matched with the shape and size of the limit opening.
Wherein, after the liquid is injected into the vacuum sealing cavity, the rear end of the mouse tail pipe is in a closed state.
Wherein, the edges of the four corners of the side frame are arc-shaped;
the four corners of the sealing cover are correspondingly arranged into arc shapes.
Wherein, the middle part of the rear end of the cavity cover is provided with a first notch which is concave inwards and trapezoidal;
a tail pipe insertion opening is reserved in the middle of the side frame corresponding to the first notch;
inserting the front end of the rat tail pipe into the rat tail pipe insertion opening;
the cover is provided with a second gap at the position corresponding to the first gap.
Wherein, imbibition recess is the wave recess of longitudinal distribution to many imbibition recesses are parallel to each other, are equidistant distribution.
The liquid groove is arranged in a distribution area of the inner side surface of the sealing cover and comprises a left side area part, a right side area part and a middle area part;
the middle area part is positioned at the middle position of the left side area part and the right side area part;
wherein, the left side area part and the right side area part comprise a plurality of waved liquid suction grooves which are longitudinally distributed;
the middle area part comprises a plurality of liquid suction grooves which are symmetrically distributed left and right;
each of the liquid-absorbing grooves in the intermediate region portion is oriented in the same direction and parallel to each other in an equally spaced distribution.
Wherein, the imbibition recess is the recess that adopts the mode of turning processing to form.
The transverse width of the liquid suction groove in the distribution area of the inner side surface of the sealing cover is smaller than that of the sealing cover;
the longitudinal length of the liquid suction groove in the distribution area of the inner side surface of the sealing cover is smaller than that of the sealing cover.
Wherein, the distribution area of the imbibing groove is separated from the peripheral edge of the sealing cover by a distance of 5m m;
each of the liquid suction grooves has a width of 0.25mm and a depth of 0.2 mm.
By the above the technical scheme provided by the utility model it is visible, compare with prior art, the utility model provides an ultra-thin conducting strip with novel closing cap, its structural design science, through the structure of improving the closing cap, set up many imbibition recesses that have good imbibition ability at the closing cap towards the medial surface of cavity lid, can let the steam that the cavity lid formed behind the contact heat source on the vacuum seal cavity of ultra-thin conducting strip, in time the condensation becomes liquid, fall back the cavity lid of vacuum seal cavity bottom behind imbibition recess imbibition, thereby the heat is taken away in the circulation, realize good radiating effect, it is significant to have the production practice.
Furthermore, the utility model provides an among the ultra-thin conducting strip with novel closing cap, the preferred wave shape of the shape of imbibition recess that designs is favorable to increasing the area of contact with steam, is favorable to steam condensation backward flow, strengthens the radiating effect of ultra-thin conducting strip.
Drawings
Fig. 1 is an exploded perspective view of an ultra-thin heat conducting strip with a novel cover according to the present invention;
fig. 2 is a three-dimensional exploded view of the ultra-thin heat conducting strip with the novel sealing cover after being placed upside down according to the present invention;
fig. 3 is a schematic overall structure view (a schematic structure view when assembled together) of an ultra-thin heat conducting fin with a novel cover according to the present invention;
fig. 4 is a schematic perspective view of a first embodiment of an ultra-thin heat conducting strip with a novel sealing cover according to the present invention, wherein the sealing cover is placed upside down;
fig. 5 is a schematic perspective view of a second embodiment of the ultra-thin heat conducting strip with a novel sealing cover according to the present invention, wherein the sealing cover is placed upside down;
fig. 6 is a top view of a second embodiment of the ultra-thin heat conducting strip with a novel sealing cover according to the present invention, wherein the sealing cover is placed upside down;
in the figure: 1 is a cavity cover, 2 is a sealing cover, 3 is a mouse tail pipe, and 4 is a liquid absorption groove;
101 is a side frame, 102 is a limit lug, and 103 is a first opening;
201 is a limiting opening, and 202 is a second opening;
Detailed Description
In order to make the technical means of the present invention easier to understand, the present application will be further described in detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant application and are not limiting of the application. It should be noted that, for convenience of description, only the portions related to the present application are shown in the drawings.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.
It should be noted that in the description of the present application, the terms of direction or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, which are merely for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present application.
In addition, it should be noted that, in the description of the present application, unless otherwise explicitly specified and limited, the term "mounted" and the like should be interpreted broadly, and may be, for example, either fixedly mounted or detachably mounted.
The specific meaning of the above terms in the present application can be understood by those skilled in the art as the case may be.
Referring to fig. 1 to 6, the present invention provides an ultra-thin heat conducting fin with a novel sealing cover, which comprises a cavity cover 1 and a sealing cover 2;
the top of the cavity cover 1 is hermetically connected with the sealing cover 2;
a vacuum sealing cavity is formed between the cavity cover 1 and the sealing cover 2;
the inner side surface (namely the bottom surface) of the sealing cover 2 facing the cavity cover 1 is provided with a plurality of imbibition grooves 4;
a tail pipe insertion opening is reserved in the middle of the rear end of the top of the cavity cover 1;
the front end of the rat tail pipe 3 is inserted into the rat tail pipe insertion opening;
a mouse tail pipe 3 for injecting liquid (such as pure water) into the vacuum sealed cavity;
the bottom surface of the cavity cover 1 is a heating surface of the ultrathin heat conducting sheet and is used for contacting with an external heat source (such as a chip needing heat dissipation);
the bottom surface of the chamber cover 1 is a smooth plane.
The utility model discloses in, on specifically realizing, the sage pipe 3 uses as annotating the liquid pipe, and after injecting liquid in the sealed cavity of vacuum, the rear end opening of sage pipe 3 is sealed, and the rear end is the enclosed state.
It should be noted that the rear end opening of the trunk 3 can be closed by pressing with an existing tool (e.g., a press pliers) and then welding.
The utility model discloses in, on specifically realizing, cavity lid 1 and closing cap 2 adopt the copper product to make.
In the utility model, in the concrete implementation, the peripheral edge of the top of the cavity cover 1 is provided with a side frame 101 in a surrounding way;
the top of the four corners of the side frame 101 is respectively provided with a limit bump 102;
the sealing cover 2 is provided with a limit port 201 at the position corresponding to each limit bump 102;
the shape and size of the limit bump 102 are matched with the shape and size of the limit opening 201 correspondingly.
In particular, the four corner edges of the side frame 101 are arc-shaped;
the four corners of the cover 2 are correspondingly shaped as circular arcs.
In particular, the middle part of the rear end of the cavity cover 1 is provided with a first notch 103 which is concave and trapezoidal;
a tail pipe insertion opening is reserved in the middle of the side frame 101 which corresponds to the first notch 103;
the front end of the rat tail pipe 3 is inserted into the rat tail pipe insertion opening;
the lid 2 is provided with a second slit 202 at a position corresponding to the first slit 103.
The utility model discloses in, on specifically realizing, imbibition recess 4 is the wave recess of vertical (back and forth direction promptly) distribution to many imbibition recesses 4 are parallel to each other, are equidistant distribution.
In the present invention, the distribution area of the liquid suction groove 4 on the inner side surface of the cover 2 is not limited to the form shown in fig. 4, and may include a left side area portion 41, a right side area portion 42 and a middle area portion 43, as shown in fig. 5 and 6;
the middle area 43 is located at the middle position between the left area 41 and the right area 42;
wherein, the left side area part 41 and the right side area part 42 comprise a plurality of wave-shaped liquid suction grooves 4 distributed longitudinally;
the middle area part 43 comprises a plurality of liquid suction grooves 4 which are distributed in bilateral symmetry;
each of the liquid-suction grooves 4 in the intermediate region portion 43 is oriented in the same direction and parallel to each other, and is distributed at equal intervals.
In concrete implementation, the central line of symmetry of the plurality of liquid suction grooves 4 included in the middle area part 43 and the central line of the trapezoidal notch 103 in the middle of the rear end of the cavity cover 1 are positioned on the same straight line.
The utility model discloses in, in the concrete realization, imbibition recess 4 is the recess that adopts turning (lathe work promptly) mode processing to form.
The groove structure formed by turning does not deform as in the conventional sintering method, and does not damage the surface of the cap by sintering.
In the present invention, in particular, the lateral width of the distribution area of the liquid-absorbing groove 4 (i.e. the distribution area on the inner side surface of the sealing cover 2) is smaller than the lateral width of the sealing cover 2;
the distribution area of the pipetting grooves 4, i.e. the distribution area on the inner side of the cover 2, has a longitudinal extent which is smaller than the longitudinal extent of the cover 2.
In the present invention, in the concrete implementation, the distribution area of the liquid suction groove 4 is preferably 5mm from the peripheral edge of the cap.
In the utility model discloses in, specifically realize, every imbibition recess 4's width is preferred 0.25mm, and the degree of depth is preferred 0.2 mm.
It should be noted that, to the utility model discloses, the shape of imbibition recess is the wave shape, can increase steam area of contact, is favorable to steam condensation backward flow.
It should be noted that, to the utility model discloses, optimize the closing cap to ultra-thin conducting strip, evenly set up many wave shape's imbibition recess at the closing cap towards the medial surface of cavity lid, through experimental inspection, can realize the imbibition effect equivalent with capillary structure. In particular implementations, the wave shape may be formed using sinusoidal parameters.
Compared with the prior art, the utility model discloses a structural optimization forms and is used for quick radiating recess shape, and through experimental verification, can satisfy quick radiating requirement.
It should be noted that, to the utility model discloses, the sintering forms the cavity (the vacuum seal cavity of ultra-thin conducting strip promptly, this sintering process is current common well-known technology) between cavity lid and the closing cap, annotates the welding formation overall structure again behind the liquid pipe inserts the cavity lid.
It should be noted that, in the implementation, the liquid injection operation inside the vacuum sealed cavity of the ultrathin heat conducting strip is as follows: pure water is injected through the liquid injection pipe (namely the tail pipe 3), then the vacuum pumping is carried out, and then the liquid injection pipe is closed.
It should be noted that, to the utility model provides an ultra-thin conducting strip, its whole device's theory of operation does: the surface of a cavity cover of the vacuum sealing cavity is in contact with an external heat source (such as the surface of a chip needing heat dissipation), internal liquid (such as pure water) is evaporated to become gas to rise, the liquid is condensed into liquid after the sealing cover with lower contact temperature absorbs the liquid, and the liquid falls back to the cavity cover after absorbing the liquid by the wavy liquid absorption grooves to circulate, so that heat is taken away. To the utility model discloses an ultra-thin conducting strip, its theory of operation is the same with current well-known samming board (being the vacuum cavity soaking board), the utility model discloses a structure and some relevant structures to the closing cap have been optimized, have strengthened the imbibition effect and have increased the area of contact of steam, and then have strengthened ultra-thin conducting strip's wholeness ability.
To sum up, compared with the prior art, the utility model provides a pair of ultra-thin conducting strip with novel closing cap, its structural design science, through the structure that improves the closing cap, the medial surface towards the cavity lid at the closing cap sets up many imbibition recesses that have good imbibition ability, can let the steam that the cavity lid formed behind the contact heat source on the vacuum seal cavity of ultra-thin conducting strip, in time the condensation becomes liquid, fall back to the cavity lid of vacuum seal cavity bottom behind imbibition recess imbibition, thereby the heat is taken away in the circulation, realize good radiating effect, it is significant to have the production practice.
Furthermore, the utility model provides an among the ultra-thin conducting strip with novel closing cap, the preferred wave shape of the shape of imbibition recess that designs is favorable to increasing the area of contact with steam, is favorable to steam condensation backward flow, strengthens the radiating effect of ultra-thin conducting strip.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (9)
1. An ultrathin heat conducting fin with a novel sealing cover is characterized by comprising a cavity cover (1) and a sealing cover (2);
the top of the cavity cover (1) is hermetically connected with the sealing cover (2);
a vacuum sealing cavity is formed between the cavity cover (1) and the sealing cover (2);
the inner side surface of the sealing cover (2) facing the cavity cover (1) is provided with a plurality of liquid suction grooves (4);
a tail pipe insertion opening is reserved in the middle of the rear end of the top of the cavity cover (1);
the front end of a mouse tail pipe (3) is inserted into the mouse tail pipe insertion opening;
a mouse tail pipe (3) for injecting liquid into the vacuum sealing cavity;
the bottom surface of the cavity cover (1) is a heating surface of the ultrathin heat conducting sheet and is used for contacting with an external heat source;
the bottom surface of the cavity cover (1) is a smooth plane;
wherein, the peripheral edge of the top of the cavity cover (1) is provided with a side frame (101) in a surrounding way;
the tops of four corners of the side frame (101) are respectively provided with a limiting lug (102);
the sealing cover (2) is provided with a limit port (201) at the position corresponding to each limit lug (102);
the shape and size of the limiting lug (102) are correspondingly matched with the shape and size of the limiting opening (201).
2. The ultra-thin heat conductive sheet with the novel cover as claimed in claim 1, wherein the rear end of the rat tail pipe (3) is in a closed state after the liquid is injected into the vacuum sealed chamber.
3. The ultra-thin heat conductive sheet with a novel cover as claimed in claim 1, wherein the shape of the four corner edges of the side frame (101) is circular arc;
the four corners of the sealing cover (2) are correspondingly arranged into circular arc shapes.
4. The ultra-thin heat conducting fin with the novel cover as claimed in claim 1, wherein the middle part of the back end of the cavity cover (1) is provided with a first notch (103) which is concave and trapezoidal;
a tail pipe insertion opening is reserved in the middle of the side frame (101) which is right corresponding to the first notch (103);
the front end of the mouse tail pipe (3) is inserted into the mouse tail pipe insertion opening;
the cover (2) is provided with a second gap (202) at the position corresponding to the first gap (103).
5. The ultra-thin heat conductive sheet with a novel cover as claimed in claim 1, wherein the liquid-absorbing grooves (4) are longitudinally distributed wave-shaped grooves, and a plurality of liquid-absorbing grooves (4) are parallel to each other and are distributed at equal intervals.
6. The ultra-thin heat conducting fin with a novel cover according to claim 1, characterized in that the distribution area of the liquid groove (4) on the inner side of the cover (2) comprises a left side area portion (41), a right side area portion (42) and a middle area portion (43);
the middle area part (43) is positioned at the middle position between the left side area part (41) and the right side area part (42);
wherein the left side area part (41) and the right side area part (42) comprise a plurality of wave-shaped liquid suction grooves (4) which are distributed longitudinally;
the middle area part (43) comprises a plurality of liquid suction grooves (4) which are distributed in a left-right symmetrical way;
each of the liquid-suction grooves (4) in the intermediate region portion (43) is oriented in the same direction, and is parallel to each other and equally spaced.
7. The ultra-thin thermally conductive sheet with a novel cover as claimed in claim 1, wherein the liquid-absorbing groove (4) is a groove formed by lathing.
8. The ultra-thin heat-conducting sheet with a novel cover according to any one of claims 1 to 7, wherein the transverse width of the liquid-absorbing groove (4) in the distribution area of the inner side of the cover (2) is smaller than the transverse width of the cover (2);
the longitudinal length of the liquid suction groove (4) in the distribution area of the inner side surface of the sealing cover (2) is smaller than that of the sealing cover (2).
9. The ultra-thin thermally conductive sheet with a novel cover as claimed in any of claims 1 to 7, wherein the distribution area of the liquid-absorbing grooves (4) is spaced from the peripheral edge of the cover by a distance of 5 mm;
each liquid suction groove (4) has a width of 0.25mm and a depth of 0.2 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021164115.1U CN212413660U (en) | 2020-06-22 | 2020-06-22 | Ultra-thin heat-conducting fin with novel sealing cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021164115.1U CN212413660U (en) | 2020-06-22 | 2020-06-22 | Ultra-thin heat-conducting fin with novel sealing cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212413660U true CN212413660U (en) | 2021-01-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021164115.1U Active CN212413660U (en) | 2020-06-22 | 2020-06-22 | Ultra-thin heat-conducting fin with novel sealing cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212413660U (en) |
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2020
- 2020-06-22 CN CN202021164115.1U patent/CN212413660U/en active Active
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