Injection molding sealing type liquid cooling plate

Abstract

The utility model discloses an injection molding sealing type liquid cooling plate which comprises a relieved tooth heat dissipation plate, a plurality of relieved tooth fins arranged in the same direction are formed on the relieved tooth heat dissipation plate, and a flow channel is formed between every two adjacent relieved tooth fins; the plastic housing is formed on the relieving tooth heat dissipation plate in an injection molding mode, and the multiple relieving tooth fins are covered with the plastic housing; the inner side of the plastic housing is provided with the inner lining plate, the inner lining plate is arranged above the flow channel, supporting flanges are formed on the two opposite sides of the inner lining plate, and the relieved tooth heat dissipation plate is supported on the supporting flanges. The liquid cooling plate solves the problems that the welding cost and the material cost are high and the weight is heavy due to the fact that a shell and a relief tooth plate of a traditional liquid cooling plate are formed in a welding mode.

Description

Technical Field

[0001] The utility model relates to the technical field of liquid cooling plates, in particular to an injection-molded sealed liquid cooling plate. Background Art

[0002] One of the key components of liquid cooling technology is the cold plate. The cold plate serves as the intermediate location for heat exchange. Heat generated by the chip is transferred to the cold plate through thermal conductivity. As the refrigerant within the cold plate flows through its internal channels, it undergoes convection heat transfer with the channel walls. This transfers heat from the cold plate's channels to the refrigerant, increasing its temperature and removing the heat.

[0003] The internal flow channels of liquid cooling plates commonly used in servers and communications are skived channels. The external shell of the liquid cooling plate is welded using diffusion welding, vacuum brazing, or friction stir welding to achieve a sealed flow channel structure.

[0004] The shell and skive plate of a traditional liquid cooling plate are usually welded using diffusion welding, vacuum brazing or stir friction welding, which has high welding costs and low efficiency. At the same time, the shell material is the same as the skive plate (metal material), which makes the material cost high and the weight heavy.

[0005] The information disclosed in this background technology section is only intended to increase the understanding of the overall background of the present invention, and should not be regarded as an admission or any form of suggestion that the information constitutes the prior art already known to those skilled in the art. Utility Model Content

[0006] In order to overcome the defects of the existing technology, an injection-molded sealed liquid cooling plate is provided to solve the problem that the shell and the skived plate of the traditional liquid cooling plate are welded, resulting in high welding cost, material cost and heavy weight.

[0007] To achieve the above objectives, an injection-molded sealed liquid cooling plate is provided, comprising:

[0008] A skived heat sink is formed with a plurality of skived fins arranged in the same direction, with a flow channel formed between two adjacent skived fins;

[0009] A plastic cover is injection-molded on the skived heat sink, and the plastic cover is arranged to cover the exterior of the plurality of skived fins;

[0010] An inner lining plate is provided on the inner side of the plastic cover, and the inner lining plate is arranged above the flow channel. Support flanges are formed on opposite sides of the inner lining plate, and the skived heat dissipation plate is supported by the support flanges.

[0011] Furthermore, the supporting flange and the skived fin are arranged in the same direction.

[0012] Furthermore, the inner lining plate is a metal plate.

[0013] Furthermore, the metal plate is a stainless steel plate.

[0014] Furthermore, the plastic cover is injection molded on the skived heat sink.

[0015] The beneficial effect of the present invention lies in that, while the internal skived-tooth heat sink remains unchanged, the plastic housing is replaced with an injection-molded part. The plastic housing and the skived-tooth heat sink are connected through an injection molding process to form a sealed liquid cooling plate. The plastic housing above the skived-tooth heat sink is injection-molded by injection molding the metal skived-tooth heat sink and the plastic housing, or bonded together with a specialized plastic adhesive to form a liquid cooling plate with a flow channel structure.

[0016] The injection-molded sealed liquid cooling plate of the present invention changes the welding process of traditional liquid cooling plates, thereby significantly reducing welding costs. At the same time, the density of plastic materials is lower than that of metal materials, so the weight and material costs can also be significantly reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Other features, objects and advantages of the present application will become more apparent upon reading the detailed description of non-limiting embodiments made with reference to the following drawings:

[0018] Figure 1 This is a schematic structural diagram of an injection-molded sealed liquid cooling plate according to an embodiment of the present invention.

[0019] Figure 2 This is a front view of an injection-molded sealed liquid cooling plate according to an embodiment of the present invention.

[0020] Figure 3 This is a perspective view of an injection-molded sealed liquid cooling plate according to an embodiment of the present invention.

[0021] Figure 4 This is a schematic diagram of the exploded structure of the injection-molded sealed liquid cooling plate according to an embodiment of the present invention. DETAILED DESCRIPTION

[0022] The present application will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely for the purpose of explaining the relevant utility model and are not intended to limit the utility model. It should also be noted that, for ease of description, only the portions relevant to the utility model are shown in the accompanying drawings.

[0023] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0024] Reference Figures 1 to 4 As shown, the utility model provides an injection-molded sealed liquid cooling plate, comprising: a skived heat sink 1, a plastic cover 2, and an inner lining plate 3.

[0025] In this embodiment, the skived heat sink 1 is rectangular. A plurality of skived fins 11 are formed on the skived heat sink. The skived fins 11 are arranged in the same direction. The skived fins 11 are arranged along the length of the skived heat sink. The skived fins 11 are spaced apart along the width of the skived heat sink. A flow channel is formed between adjacent skived fins.

[0026] The plastic cover 2 is injection-molded on the skived-tooth heat sink and covers the outside of the plurality of skived-tooth fins.

[0027] As a preferred embodiment, the plastic cover is injection molded on the skived heat sink.

[0028] In this embodiment, an inner lining plate 3 is provided on the inner side of the plastic housing. The inner lining plate 3 is arranged above the flow channel. Support flanges 31 are formed on opposite sides of the inner lining plate. The skived heat sink is supported on the support flanges.

[0029] As a preferred embodiment, the support flange and the skived fin are arranged in the same direction and are fixedly connected to the skived heat sink.

[0030] In this embodiment, the inner lining plate is a metal plate, and specifically, the metal plate is a stainless steel plate.

[0031] To prevent plastic condensate from clogging the flow channel when injection molding the plastic cover on the skived heat sink, an inner lining plate is designed above the flow channel. This plate is typically made of SUS304 or 316 stainless steel. It provides support and insulation, while also enhancing the structural strength of the plastic cover.

[0032] The specific preparation steps of the injection-molded sealed liquid cooling plate of the utility model are as follows:

[0033] 1) Processing of skived heat sinks by machining, wire cutting, skived machining, electric spark or etching;

[0034] 2) Process the inner lining plate according to the flow channel structure of the skived heat sink;

[0035] 3) Fix the inner lining plate on the flow channel, and then use the injection molding or plastic bonding process to inject or bond the plastic cover to the skived heat sink.

[0036] The injection-molded sealed liquid cooling plate of the utility model has an internal skived heat sink that remains unchanged, and a plastic cover that is replaced with an injection-molded part. The plastic cover and the skived heat sink are connected to form a sealed liquid cooling plate through an injection molding (or bonding) process.

[0037] The plastic cover above the skived-tooth heat sink is formed by injection molding the metal skived-tooth heat sink and the plastic cover, or the plastic cover and the metal skived-tooth heat sink are bonded together by special plastic adhesive to form a liquid cooling plate with a flow channel structure.

[0038] The material of the plastic cover can be PC (polycarbonate), ABS (acrylonitrile-styrene-butadiene copolymer, ABS is the abbreviation of Acrylonitrile Butadiene Styrene), PC+ABS, PEEK (polyetheretherketone) +POM (polyoxymethylene), etc.

[0039] The injection-molded sealed liquid cooling plate of the present invention changes the welding process of traditional liquid cooling plates, thereby significantly reducing welding costs. At the same time, the density of plastic materials is lower than that of metal materials, so the weight and material costs can also be significantly reduced.

[0040] The above description is merely a preferred embodiment of the present application and an illustration of the technical principles employed. Those skilled in the art should understand that the scope of the utility model disclosed in this application is not limited to the technical solutions formed by the specific combination of the above-mentioned technical features, but also encompasses other technical solutions formed by any combination of the above-mentioned technical features or their equivalents without departing from the concept of the utility model. For example, a technical solution formed by replacing the above-mentioned features with (but not limited to) technical features with similar functions disclosed in this application.

Claims

1. An injection-molded sealed liquid cooling plate, characterized in that: include: A skived heat sink is formed with a plurality of skived fins arranged in the same direction, with a flow channel formed between two adjacent skived fins; A plastic cover is injection-molded on the skived heat sink, and the plastic cover is arranged to cover the exterior of the plurality of skived fins; An inner lining plate is provided on the inner side of the plastic cover, and the inner lining plate is arranged above the flow channel. Support flanges are formed on opposite sides of the inner lining plate, and the skived heat dissipation plate is supported by the support flanges.

2. The injection-molded sealed liquid cooling plate according to claim 1, characterized in that: The supporting flange and the skived fin are arranged in the same direction.

3. The injection-molded sealed liquid cooling plate according to claim 1, characterized in that: The inner lining plate is a metal plate.

4. The injection-molded sealed liquid cooling plate according to claim 3, characterized in that: The metal plate is a stainless steel plate.

5. The injection-molded sealed liquid cooling plate according to claim 1, characterized in that: The plastic cover is injection molded on the skived heat sink.

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