Distributed spray cold plate device

Abstract

The present disclosure provides a distributed spray cold plate device, which comprises a heat exchange plate, a housing assembly and a water inlet assembly. The heat exchange plate has a heat exchange surface, and a plurality of fins are vertically arranged on the heat exchange surface. The housing assembly covers the heat exchange plate, and has a water inlet and a water outlet. An inner wall of the housing assembly forms a heat exchange chamber which is connected to the water outlet, and the heat exchange surface is located in the heat exchange chamber. The water inlet assembly is arranged in the housing assembly, and has at least one water spraying pipe which is connected to the water inlet. The water spraying pipe is connected to the plurality of fins in series and is arranged adjacent to the heat exchange surface. One side of the water spraying pipe has a spray port structure which is arranged to face the heat exchange surface.

Description

Technical Field

[0001] This disclosure relates to cold plate devices, and more particularly to a distributed spray cold plate device that directly sprays working fluid at multiple points on a heat exchange surface. Background Technology

[0002] Existing water cooling blocks or plates typically include a heat exchange plate, one side of which is attached to a heat source to absorb the heat generated. The other side of the heat exchange plate has a finned structure, through which the aforementioned heat is transferred to the finned structure via heat conduction. The finned structure is housed within a chamber, and the working fluid is injected into the chamber, undergoes heat exchange through the finned structure, and then exits the chamber, thereby dissipating heat. In this existing cooling method, the working fluid heats up as it passes through the finned structure, and this increased temperature reduces the temperature difference between the working fluid and the finned structure, leading to a decrease in heat exchange efficiency. Therefore, the heat exchange efficiency varies across different parts of existing water cooling blocks or plates, making it difficult to achieve optimal overall cooling efficiency.

[0003] In view of this, the creator has devoted himself to studying the aforementioned existing technologies and applying theoretical principles to try his best to solve the above-mentioned problems, which has become the creator's goal for improvement. Utility Model Content

[0004] This disclosure relates to a distributed spraying cold plate device that directly sprays working fluid at multiple points on a heat exchange surface.

[0005] This disclosure provides a distributed spray-type cold plate device, comprising a heat exchange plate, a housing assembly, and a water inlet assembly. The heat exchange plate has a heat exchange surface with multiple fins erected on it. The housing assembly covers the heat exchange plate and has a water inlet and an outlet. A heat exchange chamber communicating with the outlet is formed within the housing assembly, and the heat exchange surface is located within the heat exchange chamber. The water inlet assembly is disposed within the housing assembly and has at least one spray pipe communicating with the water inlet. The spray pipe is connected in series with multiple fins and is arranged adjacent to the heat exchange surface. One side of the spray pipe has a nozzle structure facing the heat exchange surface.

[0006] In one embodiment of this disclosure, the nozzle structure includes a longitudinal groove that extends longitudinally, obliquely, or laterally along the sprinkler pipe.

[0007] In one embodiment of this disclosure, the nozzle structure includes a plurality of holes.

[0008] In one embodiment of this disclosure, the water inlet assembly includes a plurality of spray pipes arranged in parallel and spaced apart, and at least one internal manifold, with each spray pipe connected to at least one internal manifold.

[0009] In one embodiment of this disclosure, the water inlet assembly includes a plurality of internal manifolds, with one end of each sprinkler pipe connected to one of the internal manifolds and the other end connected to another internal manifold.

[0010] In one embodiment of this disclosure, the housing assembly has a plurality of water inlets, and the plurality of internal manifolds are respectively connected to each water inlet.

[0011] In one embodiment of this disclosure, the distributed spray-type cold plate device further includes an outer manifold disposed outside the housing assembly, and the outer manifold is connected to each inner manifold through each water inlet.

[0012] In one embodiment of this disclosure, the water inlet assembly includes a plurality of internal manifolds, among which there is a first internal manifold and a second internal manifold. One end of each sprinkler pipe is connected to the first internal manifold and the other end is connected to the second internal manifold. The housing assembly has three water inlets. The two ends of the first internal manifold are respectively connected to two of the plurality of water inlets, and the other water inlet is connected to the middle section of the second internal manifold.

[0013] In one embodiment of this disclosure, the water inlet assembly includes a plurality of internal manifolds, one end of each sprinkler pipe is connected to one of the internal manifolds and the other end is connected to another internal manifold, and the housing assembly has two water inlets, with the plurality of water inlets respectively connected to the middle section of each internal manifold.

[0014] In one embodiment of this disclosure, a drainage channel is formed between two adjacent fins, and multiple fins are arranged in parallel on the heat exchange surface to form multiple drainage channels.

[0015] In summary, the distributed spray-type cold plate device disclosed herein has a water inlet assembly configured facing the heat exchange surface, which enables the working fluid to be directly and uniformly delivered to various points on the heat exchange surface to avoid meandering flow on the heat exchange surface and causing uneven temperature of the working fluid as it passes through various points on the heat exchange surface. Attached Figure Description

[0016] Figure 1 This is a perspective view of the distributed spray-type cold plate device according to the first embodiment of this disclosure.

[0017] Figure 2 This is a cross-sectional view of the distributed spray-type cold plate device according to the first embodiment of this disclosure.

[0018] Figure 3 This is another cross-sectional view of the distributed spray-type cold plate device according to the first embodiment of this disclosure.

[0019] Figure 4 This is a perspective view of the distributed spray-type cold plate device according to the first embodiment of this disclosure.

[0020] Figure 5 This is a perspective view of the water inlet component of the distributed spray-type cold plate device according to the first embodiment of this disclosure.

[0021] Figure 6 This is a bottom view of the water spray pipe of the distributed spray cold plate device according to the first embodiment of this disclosure.

[0022] Figure 7 This is a side view of the spray pipe of the distributed spray cold plate device according to the first embodiment of this disclosure.

[0023] Figure 8 This is a bottom view of another aspect of the water spray pipe of the distributed spray cold plate device according to the first embodiment of this disclosure.

[0024] Figure 9 This is a cross-sectional view of the water spray pipe of the distributed spray cold plate device according to the first embodiment of this disclosure in its usage state.

[0025] Figure 10 This is a perspective view of the distributed spray-type cold plate device according to the second embodiment of this disclosure.

[0026] Figure 11 This is a schematic diagram of the water spray pipe usage status of the distributed spray cold plate device according to the second embodiment of this disclosure.

[0027] Figure 12 This is a cross-sectional view of the water spray pipe of the distributed spray cold plate device according to the first embodiment of this disclosure in use.

[0028] The annotations in the attached figures are explained as follows:

[0029] 100: Heat exchange plate

[0030] 101: Heat exchange surface

[0031] 102: Drainage channel

[0032] 110: Fins

[0033] 200: Housing assembly

[0034] 201:Water inlet

[0035] 202: Outlet

[0036] 203: Heat Exchange Chamber

[0037] 220: External manifold

[0038] 300: Water Inlet Component

[0039] 301: Longitudinal groove

[0040] 302: Hole

[0041] 310: Sprinkler hose

[0042] 311: Nozzle Structure

[0043] 320a: First internal manifold

[0044] 320b: Second internal manifold. Detailed Implementation

[0045] In the description of this disclosure, it should be understood that the terms "front side", "rear side", "left side", "right side", "front end", "rear end", "end", "longitudinal", "lateral", "vertical", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this disclosure and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this disclosure.

[0046] Unless otherwise defined, the terms "substantially" and "approximately" are used to describe and narrate small changes. When used in connection with an event or situation, the term may include the exact moment the event or situation occurred, or an approximate point in time. For example, when used in connection with a numerical value, the term may include a range of variation less than or equal to ±10% of the value, such as less than or equal to ±5%, less than or equal to ±4%, less than or equal to ±3%, less than or equal to ±2%, less than or equal to ±1%, less than or equal to ±0.5%, less than or equal to ±0.1%, or less than or equal to ±0.05%.

[0047] The detailed description and technical content of this disclosure will be explained below in conjunction with the accompanying drawings. However, the accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this disclosure.

[0048] Figure 1 This is a perspective view of the distributed spray-type cold plate device according to the first embodiment of this disclosure. (See also...) Figure 1 The first embodiment of this disclosure provides a distributed spray-type cold plate device, which includes a heat exchange plate 100, a housing assembly 200 and a water inlet assembly 300.

[0049] Figure 2 This is a cross-sectional view of the distributed spray-type cold plate device according to the first embodiment of this disclosure. Figure 3 This is another cross-sectional view of the distributed spray-type cold plate device according to the first embodiment of this disclosure. (See also...) Figures 1 to 3 The heat exchange plate 100 is a metal plate, such as copper or aluminum, but this disclosure is not limited thereto. One side of the heat exchange plate 100 defines a heat exchange surface 101, and a plurality of fins 110 are erected on the heat exchange surface 101. The plurality of fins 110 are arranged parallel to each other and spaced apart, so that a drainage channel 102 is formed between any two adjacent fins 110, that is, the plurality of fins 110 form a plurality of parallel drainage channels 102 on the heat exchange surface 101.

[0050] Figure 4 This is a perspective view of the distributed spray-type cold plate device according to the first embodiment of this disclosure. (See also...) Figure 1 and Figure 4 The housing assembly 200 covers the heat exchange plate; specifically, the housing assembly 200 covers the heat exchange surface 101 of the heat exchange plate. The housing assembly 200 has at least one inlet 201 and one outlet 202. A heat exchange chamber 203 communicating with the outlet 202 is formed within the housing assembly 200. The heat exchange surface 101 forms the bottom of the heat exchange chamber 203, and a plurality of fins 110 are accommodated within the heat exchange chamber 203. In this embodiment, the top of the housing assembly 200 is conical (it may be a pyramid or a cone), and the outlet 202 is located at the center of the top of the housing assembly 200.

[0051] Figure 5 This is a perspective view of the water inlet component of the distributed spray-type cold plate device according to the first embodiment of this disclosure. (See also...) Figure 1 and Figure 5 The water inlet assembly 300 is disposed within the housing assembly 200, and the water inlet assembly 300 has at least one spray pipe 310 communicating with the water inlet 201, see reference. Figures 1 to 3 The water spray pipe 310 is tightly fitted with multiple fins 110 and is horizontally arranged parallel to the heat exchange plate 100, and the water spray pipe 310 is arranged adjacent to the heat exchange surface 101. One side of the water spray pipe 310 has a nozzle structure 311. Specifically, the nozzle structure 311 is located at the bottom of the water spray pipe 310 and is arranged downwards, and generally faces or is oriented towards the heat exchange surface 101.

[0052] Figure 6 This is a bottom view of the water spray pipe 310 of the distributed spray cold plate device according to the first embodiment of this disclosure. Figure 7 This is a side view of the spray pipe 310 of the distributed spray type cold plate device according to the first embodiment of this disclosure. (See also...) Figure 2 , Figure 6 and Figure 7 In this embodiment, one form of the nozzle structure 311 includes a longitudinal groove 301, which extends longitudinally, obliquely, or laterally along the sprinkler pipe 310 and passes through multiple fins 110 and through each drainage channel 102.

[0053] Figure 8 This is a bottom view of another aspect of the spray pipe 310 of the distributed spray cold plate device according to the first embodiment of this disclosure. (See also...) Figure 8In this embodiment, another form of the nozzle structure 311 includes multiple holes 302, which are arranged in a row along the longitudinal direction of the sprinkler pipe 310 and distributed in each drainage channel 102. For example, each hole 302 is aligned with one of the drainage channels 102, or one drainage channel 102 is aligned with multiple adjacent holes 302. The multiple holes 302 can be used as expansion valves. When high-pressure working fluid is injected into the sprinkler pipe 310, it expands and cools down when passing through the multiple holes 302, and may simultaneously undergo a phase change, increasing the cooling rate.

[0054] See Figures 1 to 3 In its simplest implementation, a single sprinkler pipe 310 can achieve the spraying effect described herein. In this embodiment, the sprinkler pipe 310 is a straight pipe. To meet the requirements of the spraying range, the water inlet assembly 300 includes a plurality of sprinkler pipes 310 arranged in parallel at intervals. In conjunction with the aforementioned plurality of sprinkler pipes 310, the water inlet assembly 300 also includes at least one internal manifold. Each sprinkler pipe 310 is connected to the internal manifold, and the internal manifold is connected to the water inlet 201. Through the internal manifold, working fluid can be distributed from the water inlet 201 to each connected sprinkler pipe 310. The working fluid can be a fluid that is flowable or capable of undergoing a gas-liquid phase change, such as water, refrigerant, organic liquid, or inorganic liquid.

[0055] See Figure 1 and Figure 5 In this embodiment, the water inlet assembly 300 includes multiple internal manifolds, each of which is a straight pipe; the outer casing assembly 200 has multiple water inlets 201, the multiple internal manifolds are respectively connected to each water inlet 201, and the multiple sprinkler pipes 310 are respectively connected to each internal manifold. Specifically, the multiple internal manifolds include a first internal manifold 320a and a second internal manifold 320b, one end of each sprinkler pipe 310 is connected to one side of the first internal manifold 320a and the other end is connected to one side of the second internal manifold 320b; the outer casing assembly 200 has three water inlets 201, two ends of the first internal manifold 320a are respectively connected to two of the water inlets 201, and the other water inlet 201 is connected to the middle section of the second internal manifold 320b. Specifically, the flow path of the first internal manifold 320a begins at both ends of the first internal manifold 320a and ends at the middle section of the first internal manifold 320a; the flow path of the second internal manifold 320b begins at the middle section of the second internal manifold 320b and ends at both ends of the second internal manifold 320b. This configuration allows either the first internal manifold 320a or the second internal manifold 320b to be configured so that its flow path end corresponds to the inflow beginning of the other, thus compensating for the water distribution at low pressure points.

[0056] In this embodiment, in conjunction with the aforementioned plurality of water inlets 201, an external manifold 220 is provided outside the housing assembly 200, and the external manifold 220 is connected to each internal manifold through each water inlet 201. The external manifold 220 is also connected to a liquid source to provide working fluid. The working fluid is distributed to each water inlet 201 through the external manifold 220, and further distributed to each sprinkler pipe 310 through each internal manifold.

[0057] Figure 9 This is a cross-sectional view of the spray pipe 310 of the distributed spray cold plate device according to the first embodiment of this disclosure, in its usage state. (See also...) Figures 3 to 5 and Figure 9 The working fluid supplied can be sprayed directly onto multiple points on the heat exchange surface 101 through the nozzle structure 311 of each sprinkler pipe 310. The sprayed working fluid carries away the heat energy of the heat exchange plate 100 through the heat exchange surface 101 and then exits the heat exchange plate 100 laterally (i.e., along the positive direction of the heat exchange surface 101) through each drainage channel 102. It is then collected by the outer casing assembly 200 and discharged through the outlet 202. Depending on the type of working fluid, it may undergo a phase change after absorbing heat from the heat exchange surface 101. If the working fluid does not undergo a phase change, it will fill the entire heat exchange chamber 203. The working fluid is sprayed onto the heat exchange surface 101 through the nozzle structure 311, and after impacting the heat exchange surface 101, it reverses direction and exits the heat exchange plate 100 along the positive direction of the heat exchange surface 101. If the working fluid undergoes a phase change after absorbing heat from the heat exchange surface 101, the gaseous working fluid rises and exits the heat exchange plate 100 along the positive direction of the heat exchange surface 101. The fins 110 can prevent the working fluid from absorbing heat from the heat exchange surface 101 and flowing across the heat exchange surface 101, thereby guiding the working fluid to change direction, so that each position on the heat exchange surface 101 is in contact with the cold working fluid that has not absorbed heat.

[0058] In summary, the distributed spray-type cold plate device of this disclosure has a water inlet assembly 300 configured facing the heat exchange surface 101, which enables the working fluid to be directly and uniformly delivered to various points on the heat exchange surface 101 to avoid the working fluid from flowing around on the heat exchange surface 101 and causing uneven temperature when passing through various points on the heat exchange surface 101.

[0059] Figure 10 This is a perspective view of the distributed spray-type cold plate device according to the second embodiment of this disclosure. Figure 11 This is a schematic diagram of the usage state of the water spray pipe 310 of the distributed spray cold plate device according to the second embodiment of this disclosure. Figure 12 This is a cross-sectional view of the water spray pipe 310 of the distributed spray cold plate device according to the first embodiment of this disclosure in its usage state.

[0060] See Figures 10 to 12The second embodiment of this disclosure provides a distributed spray-type cold plate device, which includes a heat exchange plate 100, a housing assembly 200 and a water inlet assembly 300.

[0061] The heat exchange plate 100 is a metal plate, such as copper or aluminum, but this is not a limitation of the present invention. One side of the heat exchange plate 100 defines a heat exchange surface 101, and a plurality of fins 110 are erected on the heat exchange surface 101. The plurality of fins 110 are arranged parallel to each other and spaced apart, so that a drainage channel 102 is formed between any two adjacent fins 110, that is, the plurality of fins 110 form a plurality of parallel drainage channels 102 on the heat exchange surface 101.

[0062] The housing assembly 200 covers the heat exchange plate; specifically, the housing assembly 200 covers the heat exchange surface 101 of the heat exchange plate. The housing assembly 200 has at least one inlet 201 and one outlet 202. A heat exchange chamber 203 communicating with the outlet 202 is formed within the housing assembly 200. The heat exchange surface 101 forms the bottom of the heat exchange chamber 203, and a plurality of fins 110 are housed within the heat exchange chamber 203. In this embodiment, the top of the housing assembly 200 is conical (it may be a pyramid or a cone), and the outlet 202 is located at the center of the top of the housing assembly 200.

[0063] A water inlet assembly 300 is disposed within the housing assembly 200. The water inlet assembly 300 has at least one spray pipe 310 communicating with a water inlet 201. The spray pipe 310 is tightly fitted in series with a plurality of fins 110 and is horizontally arranged parallel to the heat exchange plate 100. The spray pipe 310 is disposed adjacent to the heat exchange surface 101. One side of the spray pipe 310 has a nozzle structure 311. Specifically, the nozzle structure 311 is disposed at the bottom of the spray pipe 310 and is arranged downwards, generally facing the heat exchange surface 101.

[0064] In this embodiment, the sprinkler pipe 310 is a straight pipe. To meet the requirements of the spraying range, the water inlet assembly 300 includes a plurality of sprinkler pipes 310 arranged in parallel at intervals. In conjunction with the aforementioned plurality of sprinkler pipes 310, the water inlet assembly 300 also includes at least one internal manifold. Each sprinkler pipe 310 is connected to the internal manifold, and the internal manifold is connected to the water inlet 201. Through the internal manifold, working fluid can be distributed from the water inlet 201 to each connected sprinkler pipe 310.

[0065] The nozzle structure 311 of each sprinkler pipe 310 allows the supplied working fluid to be sprayed directly onto multiple points on the heat exchange surface 101. The sprayed working fluid carries away the heat energy from the heat exchange plate 100 through the heat exchange surface 101 and then exits the heat exchange plate 100 laterally (i.e., along the positive direction of the heat exchange surface 101) through each drainage channel 102. It is then collected by the outer casing assembly 200 and discharged through the outlet 202. Depending on the type of working fluid, it may undergo a phase change after absorbing heat from the heat exchange surface 101. If the working fluid does not undergo a phase change, it will fill the entire heat exchange chamber 203. The working fluid is sprayed onto the heat exchange surface 101 through the nozzle structure 311, and after impacting the heat exchange surface 101, it reverses direction and exits the heat exchange plate 100 along the positive direction of the heat exchange surface 101. If the working fluid undergoes a phase change after absorbing heat from the heat exchange surface 101, the gaseous working fluid rises and exits the heat exchange plate 100 along the positive direction of the heat exchange surface 101. The fins 110 can prevent the working fluid from absorbing heat from the heat exchange surface 101 and flowing across the heat exchange surface 101, thereby guiding the working fluid to change direction, so that each position on the heat exchange surface 101 is in contact with the cold working fluid that has not absorbed heat.

[0066] In this embodiment, the water inlet assembly 300 includes multiple internal manifolds, each of which is a straight pipe; the outer casing assembly 200 has multiple water inlets 201, and the multiple internal manifolds are respectively connected to each water inlet 201, and the multiple sprinkler pipes 310 are respectively connected to each internal manifold. Specifically, the multiple internal manifolds include two second internal manifolds 320b, one end of each sprinkler pipe 310 is connected to one side of one of the second internal manifolds 320b and the other end is connected to one side of the other second internal manifold 320b; the outer casing assembly 200 has two water inlets 201, each water inlet 201 is respectively connected to the middle section of each second internal manifold 320b. The aforementioned symmetrical input configuration is used to balance the pressure difference between the two ends of each sprinkler pipe 310.

[0067] In this embodiment, in conjunction with the aforementioned plurality of water inlets 201, an external manifold 220 is provided outside the housing assembly 200, and the external manifold 220 is connected to each internal manifold through each water inlet 201. The external manifold 220 is also connected to a liquid source to provide working fluid. The working fluid is distributed to each water inlet 201 through the external manifold 220, and further distributed to each sprinkler pipe 310 through each internal manifold.

[0068] The above description is merely a preferred embodiment of this invention and is not intended to limit the patent scope of this invention. Other equivalent variations that utilize the patent spirit of this invention should also fall within the patent scope of this invention.

Claims

1. A distributed spray-type cold plate device, characterized in that, include: A heat exchange plate has a heat exchange surface, on which multiple fins are erected; A housing assembly covers the heat exchange plate, the housing assembly having an inlet and an outlet, and a heat exchange chamber communicating with the outlet is formed within the housing assembly, with the heat exchange surface located within the heat exchange chamber; and A water inlet assembly is disposed within the housing assembly. The water inlet assembly has at least one water spray pipe communicating with the water inlet. The water spray pipe is connected in series with multiple fins and is disposed adjacent to the heat exchange surface. One side of the water spray pipe has a nozzle structure, which is disposed facing the heat exchange surface.

2. The distributed spray cold plate device as described in claim 1, characterized in that, The nozzle structure includes a longitudinal groove that extends longitudinally, obliquely, or laterally along the sprinkler pipe.

3. The distributed spray cold plate device as described in claim 1, characterized in that, The nozzle structure contains multiple holes.

4. The distributed spray cold plate device as described in claim 1, characterized in that, The water inlet assembly includes a plurality of spray pipes arranged in parallel and spaced apart, and at least one internal manifold, with each spray pipe connected to the at least one internal manifold.

5. The distributed spray-type cold plate device as described in claim 4, characterized in that, The water inlet assembly includes multiple internal manifolds, with one end of each sprinkler pipe connected to one of the internal manifolds and the other end connected to another internal manifold.

6. The distributed spray cold plate device as described in claim 5, characterized in that, The outer casing assembly has multiple water inlets, and multiple internal manifolds are respectively connected to each of the water inlets.

7. The distributed spray cold plate device as described in claim 6, characterized in that, It also includes an external manifold located outside the housing assembly, and the external manifold is connected to each of the internal manifolds through each of the water inlets.

8. The distributed spray cold plate device as described in claim 4, characterized in that, The water inlet assembly includes multiple internal manifolds, among which there is a first internal manifold and a second internal manifold. One end of each sprinkler pipe is connected to the first internal manifold and the other end is connected to the second internal manifold. The outer casing assembly has three water inlets. The two ends of the first internal manifold are respectively connected to two of the multiple water inlets, and the other water inlet is connected to the middle section of the second internal manifold.

9. The distributed spray cold plate device as described in claim 4, characterized in that, The water inlet assembly includes multiple internal manifolds. One end of each sprinkler pipe is connected to one of the internal manifolds and the other end is connected to the other internal manifold. The outer casing assembly has two water inlets, and the multiple water inlets are respectively connected to the middle section of each internal manifold.

10. The distributed spray cold plate device as described in claim 1, characterized in that, A drainage channel is formed between two adjacent fins, and multiple fins form multiple parallel drainage channels on the heat exchange surface.

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