Liquid cooling plate structure

Abstract

The present invention provides a liquid cooling plate structure that performs double heat dissipation through dual channels, significantly improving the heat dissipation effect. The structure comprises a shell cover, a temperature equalizing plate, a partition, a first fin, a second fin, a pair of long water spouts, and a pair of short water spouts. The shell cover is installed on the middle area of ​​the upper surface of the temperature equalizing plate. The upper end plate of the shell cover is convex and forms a cooling chamber with the temperature equalizing plate. The upper end plate of the shell cover is provided with two groups of water inlet and outlet holes, wherein the first group of water inlet and outlet holes corresponds to the pair of short water spouts, and the second group of water inlet and outlet holes corresponds to the pair of long water spouts. A partition is fixed in the height direction of the cooling chamber, which divides the cooling chamber into an upper cooling chamber and a lower cooling chamber. The upper cooling chamber and the lower cooling chamber are isolated from each other. The upper cooling chamber is provided with a first fin, and the lower cooling chamber is provided with a second fin.

Description

Technical Field

[0001] The present invention relates to the technical field of liquid cooling plate structures, and in particular to a liquid cooling plate structure. Background Art

[0002] In the existing technology, the performance of electronic devices continues to improve, and high-frequency, high-power components are widely used. At the same time, the size of electronic devices continues to shrink and the integration level continues to increase. Electronic products generate heat during operation, which directly affects the performance and reliability of electronic products. Therefore, heat dissipation devices are needed to improve the performance of the products. The existing technology currently mainly includes two categories of heat dissipation technologies for electronic components: air cooling technology and liquid cooling technology. The existing technology generally uses liquid cooling technology to solve the cooling problem of electronic devices with large heat generation per unit volume. However, for high-power density heating elements, the operating environment temperature is high, the space volume is compact, and the control power is large. Ordinary liquid cooling plates cannot meet the heat dissipation requirements of high-power density heating elements.

[0003] In this context, a new liquid cooling plate structure is urgently needed. Summary of the Invention

[0004] In order to solve the above problems, the present invention provides a liquid cooling plate structure, which performs double heat dissipation through dual channels, thereby significantly improving the heat dissipation effect.

[0005] A liquid cooling plate structure, characterized in that it comprises:

[0006] Shell cover;

[0007] Vapor chamber;

[0008] partitions;

[0009] First fin;

[0010] Second fin;

[0011] a pair of long water spouts, comprising a first long water spout and a second long water spout;

[0012] and a pair of short water spouts, comprising a first short water spout and a second short water spout;

[0013] The middle area of ​​the upper surface of the temperature homogenizing plate is covered with a shell cover plate, the upper end plate of the shell cover plate is convex, and is combined with the temperature homogenizing plate to form a cooling chamber, and the upper end plate of the shell cover plate is provided with two groups of water inlet and outlet holes, wherein the first group of water inlet and outlet holes is provided corresponding to a pair of short water nozzles, and the second group of water inlet and outlet holes is provided corresponding to a pair of long water nozzles;

[0014] A partition is fixedly provided in the height direction of the cooling cavity, and the partition separates the cooling cavity into an upper cooling cavity and a lower cooling cavity, and the upper cooling cavity and the lower cooling cavity are isolated from each other;

[0015] A first fin is provided in the upper cooling cavity, and a second fin is provided in the lower cooling cavity; the first short water nozzle and the second short water nozzle are respectively connected to the first group of water inlet and outlet holes, and are combined with the upper cooling cavity to form a complete passage; the position of the partition corresponding to the second group of water inlet and outlet holes is provided with a third group of water inlet and outlet holes, and the inner ends of the first long water nozzle and the second long water nozzle respectively pass through the corresponding holes of the second group of water inlet and outlet holes and the corresponding holes of the third group of water inlet and outlet holes, and are combined with the lower cooling cavity to form a complete passage;

[0016] Part of the lower surface of the second fin is arranged close to the temperature equalizing plate, part of the upper surface of the second fin is arranged close to the lower surface of the partition, and part of the lower surface of the first fin is arranged close to the upper surface of the partition.

[0017] It is further characterized by:

[0018] Part of the upper surface of the first fin is arranged in close contact with the lower surface of the upper end plate of the housing cover, which ensures that part of the heat is taken away by the peripheral cooling air to form auxiliary air cooling;

[0019] The first fin and the second fin are identical fins;

[0020] The partition is fixed to the inner wall of the cooling cavity at a corresponding position in the height direction by circumferential welding to ensure the independent arrangement of the two cavities;

[0021] The height occupied by the first fin plus the second fin is the total height of the cooling chamber minus the thickness of the partition, so that when the partition is positioned in the height direction, it can press the second fin to complete the height positioning;

[0022] The inner wall of the outer circumference of the height of the shell cover is provided with a concave stop for positioning the partition, and the partition is quickly positioned in the height direction through the concave stop;

[0023] The shell cover is provided with a side convex stop edge on the circumference facing the temperature homogenizing plate, and the side convex stop edge is fixedly connected to the corresponding position of the upper surface of the temperature homogenizing plate by welding;

[0024] A fixing connection hole is provided on the outer peripheral portion of the temperature homogenizing plate corresponding to the shell cover plate, and the fixing connection hole is used to fix and install the entire liquid cooling plate.

[0025] After adopting the present invention, the cooling cavity inside the shell cover is divided into an upper cooling cavity and a lower cooling cavity by a partition, and the two layers are respectively provided with fins and flow channels; heat is transferred from the heat source to the temperature equalizing plate, transferred to the partition through the second fin, and then transferred to the shell cover by the first fin; the coolant flows into the lower cooling cavity from the first long water nozzle, takes away the heat on the fin when flowing through the second fin, and then flows to the other side and flows out from the second long water nozzle; the coolant flows into the upper cooling cavity from the first short water nozzle, takes away the heat of the lower layer transferred from the partition when passing through the first fin, and then flows to the other side and flows out from the second short water nozzle, and the entire structure dissipates heat through heat conduction of the fins and the flow of coolant; the use of the temperature equalizing plate and liquid cooling structure can make the heat transfer of the heating element faster, and the coolant exchange more sufficient, and the heat transfer more uniform; compared with products with only a single flow channel, this product can dissipate the heat in the flow channel twice, and can have a better heat dissipation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 A perspective view of the present invention;

[0027] Figure 2 It is a three-dimensional exploded view of the present invention;

[0028] Figure 3 It is a schematic top view of the present invention (with the upper end plate removed);

[0029] Figure 4 It is a bottom view schematic diagram of the present invention;

[0030] Figure 5 for Figure 4 AA cross-sectional structure diagram;

[0031] Figure 6 for Figure 5 Enlarged view of point B;

[0032] The names corresponding to the serial numbers in the article are as follows:

[0033] Shell cover 10, upper end plate 11, first group of water inlet and outlet holes 12, second group of water inlet and outlet holes 13, concave stop 14, side convex stop edge 15, temperature uniform plate 20, surrounding connecting holes 21, side connecting holes 22 partition 30, third group of water inlet and outlet holes 31, first fin 40, second fin 50, first long water spout 60, second long water spout 70, first short water spout 80, second short water spout 90, cooling chamber 100, upper cooling chamber 101, lower cooling chamber 102. DETAILED DESCRIPTION

[0034] A liquid cooling plate structure, see Figures 1-6 , which includes a shell cover 10, a temperature equalizing plate 20, a partition 30, a first fin 40, a second fin 50, a pair of long water spouts, and a pair of short water spouts;

[0035] A pair of long water spouts includes a first long water spout 60 and a second long water spout 70; a pair of short water spouts includes a first short water spout 80 and a second short water spout 90; a shell cover 10 is installed on the middle area of ​​the upper surface of the temperature equalizing plate 20, and the upper end plate 11 of the shell cover 10 is convex and combines with the temperature equalizing plate 20 to form a cooling chamber 100, and the upper end plate 11 of the shell cover 10 is provided with two groups of water inlet and outlet holes, specifically a first group of water inlet and outlet holes 12 and a second group of water inlet and outlet holes 13, wherein the first group of water inlet and outlet holes 12 is provided corresponding to the pair of short water spouts, and the second group of water inlet and outlet holes 13 is provided corresponding to the pair of long water spouts;

[0036] A partition 30 is fixedly provided in the height direction of the cooling chamber 100, and the partition 30 divides the cooling chamber 100 into an upper cooling chamber 101 and a lower cooling chamber 102. The upper cooling chamber 101 and the lower cooling chamber 102 are isolated from each other. In specific implementation, the partition 30 is a metal plate that is shaped like the cross-sectional shape of the cooling chamber 100, which has good thermal conductivity, and the preferred material is copper, aluminum and stainless steel.

[0037] A first fin 40 is provided in the upper cooling chamber 101, and a second fin 50 is provided in the lower cooling chamber 102; the first short water nozzle 80 and the second short water nozzle 90 are respectively connected to the first group of water inlet and outlet holes 12, and are combined with the upper cooling chamber 101 to form a complete passage; the partition 30 is provided with a third group of water inlet and outlet holes 31 at the position corresponding to the second group of water inlet and outlet holes 13, and the inner ends of the first long water nozzle 60 and the second long water nozzle 70 respectively pass through the corresponding holes of the second group of water inlet and outlet holes 13 and the third group of water inlet and outlet holes 31, and are combined with the lower cooling chamber 102 to form a complete passage.

[0038] During specific implementation, part of the lower surface of the second fin 50 is arranged close to the temperature equalizing plate 20, part of the upper surface of the second fin 50 is arranged close to the lower surface of the partition 30, part of the lower surface of the first fin 40 is arranged close to the upper surface of the partition 30, and part of the upper surface of the first fin 40 is arranged close to the lower surface of the upper end plate 11 of the shell cover 10, which ensures that part of the heat is taken away by the external cooling air to form auxiliary air cooling.

[0039] The first fin 40 and the second fin 50 are identical fins, and the partition 30 is fixed to the inner wall of the cooling cavity 100 at a corresponding position in the height direction by circumferential welding, ensuring the independent arrangement of the two cavities.

[0040] In the first preferred embodiment, the height occupied by the first fin 40 plus the second fin 50 is the total height of the cooling chamber 100 minus the thickness of the partition 30 , so that the partition 30 can complete the height positioning by pressing the second fin 50 when positioning in the height direction.

[0041] Preferred embodiment 2, see Figure 6: The inner wall of the outer circumference of the shell cover 10 is provided with a concave stop 14 for positioning the partition. The partition 30 is quickly positioned in the height direction through the concave stop 14 and then welded together.

[0042] The housing cover 10 is provided with a side convex stop edge 15 on its circumference facing the temperature homogenizing plate 20. The side convex stop edge 15 is fixedly connected to the corresponding position of the upper surface of the temperature homogenizing plate 20 by welding.

[0043] The outer peripheral portion of the temperature equalizing plate 20 corresponding to the shell cover 10 is provided with fixed connection holes, which are used to fix and install the entire liquid cooling plate. In specific implementation, the fixed connection holes include four surrounding connection holes 21 and side connection holes 22 in the length direction to ensure convenient and quick positioning.

[0044] In specific implementation, the two groups of water inlet and outlet holes correspond to the outer areas of the first fin 40 and the second fin 50 respectively; in a top-down state, the two groups of water inlet and outlet holes are arranged at the four vertex positions of a rectangle, the first group of water inlet holes are the two vertex positions of one group of diagonals, and the second group of water inlet and outlet holes are the two vertex positions of the other group of diagonals, which allows the coolant to fully contact the corresponding fins when flowing, ensures sufficient cooling, and improves cooling efficiency.

[0045] When the entire structure is arranged, the temperature equalizing plate 20 can be at the top or bottom, or at the left or right, and can be fixed and installed according to actual conditions. The drawings of the present invention are described as an example in which the temperature equalizing plate is at the bottom.

[0046] During specific implementation, the first fins 40 and the second fins 50 are connected to the temperature equalizing plate 20 , the partition plate 30 , and the housing cover 10 through thermal conductive adhesive to ensure convenient assembly.

[0047] Its working principle is as follows: the cooling chamber inside the shell cover is divided into an upper cooling chamber and a lower cooling chamber by a partition, and the two layers are respectively equipped with fins and flow channels; heat is transferred from the heat source to the temperature equilibrium plate, transferred to the partition through the second fin, and then transferred to the shell cover by the first fin; the coolant flows into the lower cooling chamber from the first long water nozzle, takes away the heat on the fin when flowing through the second fin, and then flows to the other side and flows out from the second long water nozzle; the coolant flows into the upper cooling chamber from the first short water nozzle, takes away the heat of the lower layer transferred from the partition when passing through the first fin, and then flows to the other side and flows out from the second short water nozzle. The entire structure dissipates heat through heat conduction of the fins and the flow of coolant; the use of a temperature equilibrium plate and liquid cooling structure can make the heat transfer of the heating element faster, and the coolant exchange more sufficient, and the heat transfer more uniform; compared with products with only a single flow channel, this product can dissipate the heat in the flow channel twice, which can have a better heat dissipation effect.

[0048] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0049] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A liquid cooling plate structure, characterized in that: It includes: Shell cover; Vapor chamber; partitions; First fin; second fin; a pair of long water spouts, comprising a first long water spout and a second long water spout; and a pair of short water spouts, comprising a first short water spout and a second short water spout; The middle area of ​​the upper surface of the temperature homogenizing plate is covered with a shell cover plate, the upper end plate of the shell cover plate is convex, and is combined with the temperature homogenizing plate to form a cooling chamber, and the upper end plate of the shell cover plate is provided with two groups of water inlet and outlet holes, wherein the first group of water inlet and outlet holes is provided corresponding to a pair of short water nozzles, and the second group of water inlet and outlet holes is provided corresponding to a pair of long water nozzles; A partition is fixedly provided in the height direction of the cooling cavity, and the partition separates the cooling cavity into an upper cooling cavity and a lower cooling cavity, and the upper cooling cavity and the lower cooling cavity are isolated from each other; A first fin is provided in the upper cooling cavity, and a second fin is provided in the lower cooling cavity; the first short water nozzle and the second short water nozzle are respectively connected to the first group of water inlet and outlet holes, and are combined with the upper cooling cavity to form a complete passage; the position of the partition corresponding to the second group of water inlet and outlet holes is provided with a third group of water inlet and outlet holes, and the inner ends of the first long water nozzle and the second long water nozzle respectively pass through the corresponding holes of the second group of water inlet and outlet holes and the corresponding holes of the third group of water inlet and outlet holes, and are combined with the lower cooling cavity to form a complete passage; Part of the lower surface of the second fin is arranged closely to the temperature equalizing plate, part of the upper surface of the second fin is arranged closely to the lower surface of the partition, and part of the lower surface of the first fin is arranged closely to the upper surface of the partition; A portion of the upper surface of the first fin is arranged in close contact with the lower surface of the upper end plate of the housing cover; The first fin and the second fin are identical fins; The partition is fixed to the inner wall of the cooling cavity at a corresponding position in the height direction by circumferential welding; The height occupied by the first fin plus the second fin is the total height of the cooling cavity minus the thickness of the partition.

2. A liquid cooling plate structure according to claim 1, characterized in that: The inner wall of the outer circumference of the height of the shell cover is provided with a concave stop for positioning the partition, and the partition is quickly positioned in the height direction through the concave stop.

3. The liquid cooling plate structure according to claim 1, wherein: A lateral convex stop edge is provided on the circumference of the shell cover plate facing the temperature homogenizing plate, and the lateral convex stop edge is fixedly connected to a corresponding position on the upper surface of the temperature homogenizing plate by welding.

4. The liquid cooling plate structure according to claim 1, wherein: A fixing connection hole is provided on the outer peripheral portion of the temperature homogenizing plate corresponding to the shell cover plate, and the fixing connection hole is used to fix and install the entire liquid cooling plate.

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