Harmonica-type liquid cooling plate

Abstract

The utility model discloses a harmonica type liquid cooling plate, and relates to the field of battery heat dissipation, the harmonica type liquid cooling plate comprises a plate-shaped body and end parts installed at the two ends of the body, the body is hollow, and a channel is formed in the length direction; the body is provided with a groove channel, the groove channel is divided into equilateral triangle flow channels and inverted triangle flow channels which are alternately arranged by forward inclined plates and reverse inclined plates which are arranged in the width direction of the body, spoilers are arranged in the equilateral triangle flow channels, and the spoilers automatically twist and rotate to form a spiral body structure; one end part is provided with a liquid inlet connected with one end of each equilateral triangle flow channel, and the other end part is provided with a liquid outlet connected with the other end of each equilateral triangle flow channel, so that the equilateral triangle flow channels are connected in parallel between the liquid inlet and the liquid outlet. The liquid cooling plate is simple in design, low in manufacturing cost and particularly suitable for battery energy storage scenes with high cost requirements.

Description

Technical Field

[0001] The present application relates to the field of battery heat dissipation, and in particular to a harmonica-type liquid cooling plate. Background Art

[0002] At present, the application of liquid cooling plates in the field of battery energy storage has been very extensive. Especially in battery systems with high power density and high heat flux density, liquid cooling technology has become the mainstream thermal management solution due to its good cooling effect. Traditional liquid cooling plates usually adopt a multi-layer structure and achieve efficient heat dissipation of the liquid through complex flow channel design. These liquid cooling plates are usually relatively complex in structure, have high manufacturing costs, and require precise processing technology to ensure the smoothness and consistency of their internal flow channels. However, due to the high manufacturing costs and high requirements for the process, these liquid cooling plates are mainly applied to some high-end application scenarios with extremely high heat dissipation requirements and relatively loose cost control.

[0003] However, in some battery energy storage scenarios with high cost requirements, such as large-scale energy storage devices or low-cost electric vehicles, the high cost of traditional liquid cooling plates has become a major obstacle. These scenarios have very strict requirements for cost control. Although effective heat dissipation means are still required, they cannot bear the overall cost increase brought by expensive liquid cooling systems. In addition, the complex structure and high processing difficulty of traditional liquid cooling plates not only increase the manufacturing cost, but also make it difficult to effectively guarantee the stability and consistency of the products. Due to the complex structure of the liquid cooling plate, any minor processing error may lead to a decrease in the performance of the liquid cooling plate and even problems such as local overheating, which may affect the service life and safety of the battery system during long-term use.

[0004] In view of the deficiencies of the existing technology, the research and development of new technologies is particularly important. Content of the Utility Model

[0005] The purpose of the present application is to at least overcome one deficiency existing in the prior art, and provide a harmonica-type liquid cooling plate. This liquid cooling plate has a simple design and low manufacturing cost, and is particularly suitable for battery energy storage scenarios with high cost requirements. By simplifying the structural design and optimizing the manufacturing process, this liquid cooling plate can not only effectively reduce the production cost, but also ensure the reliability and heat dissipation effect of the liquid cooling system.

[0006] To achieve the above object, the present application discloses a harmonica-type liquid cooling plate, which includes a plate-shaped body and ends installed at both ends of the body. Among them, the interior of the body is hollow, forming a channel opened along the length direction, and the channel is divided into alternately arranged positive triangular flow channels and inverted triangular flow channels by positive inclined plates and negative inclined plates arranged along the width direction of the body. Among them, a spoiler is arranged in the positive triangular flow channel, and the spoiler is self-twisted and rotated into a spiral structure; a liquid inlet connected to one end of each positive triangular flow channel is provided on one end, and a liquid outlet connected to the other end of each positive triangular flow channel is provided on the other end, so that each positive triangular flow channel is connected in parallel between the inlet and the outlet.

[0007] Further, the width of the spoiler is 0.3-0.5 times the perpendicular length of the positive triangular flow channel.

[0008] Further, the spoiler is vertically arranged in the positive triangular flow channel, and the upper end of the spoiler is connected to the upper end of the positive triangular flow channel, and the lower end of the spoiler is separated from the bottom surface of the positive triangular flow channel.

[0009] Further, a layer of thermal conductive silicone layer with a thickness of 0.2-0.8 mm is attached to the bottom of the body.

[0010] Further, in the body, at least one inverted triangular flow channel is inserted and fixed with a triangular rod adapted to the shape and size of the flow channel to improve the structural strength of the body.

[0011] Compared with the prior art, the present application has at least the following beneficial effects:

[0012] 1. The harmonica-type liquid cooling plate of the present application effectively optimizes the liquid flow path and improves the fluid disturbance effect by adopting the design of positive triangular flow channels and inverted triangular flow channels alternately arranged with positive inclined plates and negative inclined plates, thereby improving the heat dissipation efficiency.

[0013] 2. The spiral structure spoiler arranged in the positive triangular flow channel further improves the turbulence intensity of the fluid, promotes the heat exchange between the fluid and the channel wall surface, and improves the overall heat dissipation performance of the liquid cooling plate.

[0014] 3. A thermal conductive silicone layer is attached to the bottom of the liquid cooling plate body, which can effectively improve the contact thermal conductivity with the battery or other heat dissipation components, ensure rapid heat conduction, and further optimize the heat dissipation effect of the liquid cooling system.

[0015] The beneficial effects listed above do not exhaust all the advantages. Other potential beneficial effects and detailed technical implementation manners will be further revealed in the embodiments or other description parts of the present application. Description of the Drawings

[0016] After reading the following detailed description in conjunction with the accompanying drawings, various aspects of the present disclosure will be better understood. In the drawings, the positions, dimensions, ranges, etc. of the various structures shown sometimes do not represent the actual positions, dimensions, ranges, etc. In the drawings:

[0017] Figure 1 is a schematic structural diagram of an embodiment disclosed in the present application.

[0018] Figure 2 is a schematic structural diagram of the body in an embodiment disclosed in the present application.

[0019] Figure 3 is Figure 2 an enlarged view of part A of

[0020] Figure 4 is a schematic diagram of a partial structure of a spoiler in an embodiment disclosed in the present application. Detailed Description

[0021] The present disclosure will be described below with reference to the accompanying drawings, in which several embodiments of the present disclosure are shown. However, it should be understood that the present disclosure can be presented in many different ways and is not limited to the embodiments described below; in fact, the embodiments described below are intended to make the disclosure of the present disclosure more complete and to fully explain the scope of protection of the present disclosure to those skilled in the art. It should also be understood that the embodiments disclosed herein can be combined in various ways to provide more additional embodiments.

[0022] It should be understood that in all the drawings, the same reference numerals represent the same elements. In the drawings, for clarity, the dimensions of some features may be distorted.

[0023] It should be understood that the terms used in the specification are only for describing specific embodiments and are not intended to limit the present disclosure. All terms used in the specification (including technical terms and scientific terms) have the meanings commonly understood by those skilled in the art unless otherwise defined. For the sake of brevity and / or clarity, techniques, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the said techniques, methods, and devices should be regarded as part of the authorized specification.

[0024] The singular forms "a", "the", and "said" used in the specification include the plural forms unless clearly specified. The terms "including", "comprising", and "containing" used in the specification indicate the presence of the claimed features, but do not exclude the presence of one or more other features. The term "and / or" used in the specification includes any and all combinations of one or more of the related listed items. Embodiment

[0025] As Figures 1 to 4As shown, this embodiment details a harmonica - type liquid - cooled plate with optimized structure, designed to improve heat dissipation efficiency and enhance the overall structural strength, applicable to various battery energy storage systems and related equipment. The liquid - cooled plate includes a plate - shaped body 1, ends 6 installed at both ends of the body, and positive triangular channels 2, inverted triangular channels 3, positive inclined plates 4, negative inclined plates 5, and turbulator fins 7 arranged inside. Through careful design of the structure and materials, the liquid - cooled plate exhibits excellent heat dissipation performance and reliable structural strength in practical applications.

[0026] Specifically, the body 1 is made of high - strength aluminum alloy or copper alloy materials, which have excellent thermal conductivity and anti - deformation ability, and can maintain stable performance under harsh working conditions. Multiple channels are opened along the length direction inside the entire body 1, and these channels are divided into several positive triangular channels 2 and inverted triangular channels 3 by positive inclined plates 4 and negative inclined plates 5 arranged alternately along the width direction. The main function of the positive triangular channels 2 is the flow and heat exchange of the coolant, while the inverted triangular channels 3 are mainly used to enhance the structural strength of the liquid - cooled plate.

[0027] In the above structure, the inverted triangular channels 3 are specially designed to bear structural stress. Especially in the inverted triangular channels near the top of the body 1, triangular rods adapted to the shape and size of the channels are inserted and fixed. The triangular rods are made of high - strength stainless steel or titanium alloy and are fixed in the inverted triangular channels 3 by welding or mechanical clamping. This design ensures that the triangular rods will not loosen or shift during long - term use, thus significantly improving the overall structural strength of the body 1 and enabling the liquid - cooled plate to operate stably in high - pressure and high - temperature environments for a long time.

[0028] It should be understood that the design intention of the inverted triangular channels 3 is to utilize the stability of their geometric shape to enhance the structural strength of the body 1. Triangles have superior anti - deformation ability in mechanics. Especially after inserting triangular rods into the channels, they can effectively resist external mechanical pressure and temperature changes. Since these channels mainly play a role in structural support and do not flow through the coolant, this not only avoids the flow loss of the coolant but also makes the thermal management of the liquid - cooled plate more efficient, concentrating the coolant in the positive triangular channels 2 for efficient heat exchange.

[0029] The turbulator 7 provided inside the regular triangular flow channel 2 is one of the core components for this liquid cooling plate to achieve efficient heat dissipation. The turbulator 7 is made of stainless steel or aluminum, and is designed as a spiral structure, and its total spiral angle is usually between 1000 degrees and 1200 degrees. The purpose of this angle design is to guide the coolant to form a turbulent state in the flow channel, ensuring that the flow path of the fluid in the flow channel is complex and efficient, thereby enhancing the heat exchange between the fluid and the flow channel wall. The design of the fin pitch is usually controlled between 1 - 3 mm. Such a pitch can ensure the uniform distribution of the coolant in the flow channel, while maintaining sufficient disturbance, increasing the contact area between the coolant and the flow channel wall, thereby significantly improving the heat transfer efficiency. The turbulator 7 is manufactured by high-precision laser cutting technology and stamping forming process. The laser cutting technology is used to precisely cut stainless steel or aluminum to form the required sheet material, ensuring the precise size and smooth edges of the turbulator 7, thereby reducing the resistance of the coolant during the flow process. Subsequently, the cut sheet material is processed into a spiral structure by the stamping forming process, ensuring the consistency of the turbulator 7 during the production process and ensuring the stable overall performance of the liquid cooling plate.

[0030] The coolant enters through the liquid inlet at one end of the body 1 and is distributed to each regular triangular flow channel 2. The regular triangular flow channel 2 has a large contact area with the bottom surface of the body 1, and this design further increases the heat exchange area between the coolant and the heat source. After the coolant enters the regular triangular flow channel 2, it first flows downward along the flow channel wall. The geometric shape of the regular triangular flow channel 2 and the turbulator 7 provided inside the flow channel act together to make the flow path of the coolant in the flow channel complex.

[0031] When the coolant contacts the spiral turbulator 7, the flow direction is guided by the turbulator to form a rotational flow. This rotational flow generates a complex turbulent state. Under the turbulent state, the fluids in the coolant will collide and mix frequently, enabling the heat inside the liquid to be more evenly transferred to the flow channel wall, improving the heat exchange efficiency. At the same time, the turbulence prompts the high-speed flow part in the coolant to exchange momentum with the low-speed part near the flow channel wall, which further enhances the heat transfer effect between the fluid and the flow channel wall.

[0032] When the coolant flows through the turbulator 7, it is forced to rotate multiple times along the spiral path, extending the residence time of the coolant in the flow channel and enabling it to absorb more heat. At the same time, the rotational movement of the fluid also eliminates the "dead zones" in the flow channel, that is, the areas where the liquid may stagnate, ensuring that the coolant flow in the entire flow channel is more uniform and efficient. After the coolant absorbs heat, it is discharged through the liquid outlet at the other end of the body 1 to complete a complete cooling cycle.

[0033] To further improve the heat dissipation performance of the liquid cooling plate, a layer of thermal conductive silicone layer with a thickness of 0.2 - 0.8 mm is attached to the bottom of the body 1. The thermal conductive silicone layer can effectively increase the contact area between the liquid cooling plate and the battery or other heat sources, thereby improving the heat conduction efficiency, enabling heat to be transferred to the coolant more quickly for heat dissipation. Through this design, the liquid cooling plate can quickly conduct heat from the heat source to the coolant, effectively controlling the temperature of the heat source and avoiding system failures caused by local overheating.

[0034] This liquid cooling plate exhibits excellent performance in a variety of actual application scenarios, and is particularly suitable for battery energy storage systems, such as large-scale energy storage power stations, low-cost electric vehicles, and small energy storage devices that require efficient heat dissipation. In these applications, heat dissipation performance and cost control are particularly crucial. Traditional liquid cooling plates are difficult to meet the requirements of these application scenarios due to their complex internal structure and high manufacturing costs. Through the optimized structural design and material selection of the liquid cooling plate in this embodiment, not only the production cost is effectively reduced, but also the heat dissipation performance is significantly improved. The liquid cooling plate can work efficiently in a narrow space. Especially in electric vehicles, its compact design and efficient thermal management capabilities can significantly extend the battery life and improve the overall reliability and safety of the device.

[0035] In summary, the harmonica-style liquid cooling plate of this embodiment achieves excellent heat dissipation effects through the unique design of the regular triangular flow channel 2, combined with the large heat exchange area and the turbulent effect of the turbulator 7. At the same time, the combined use of the inverted triangular flow channel 3 and the triangular rod further enhances the structural strength of the liquid cooling plate. Through the detailed design and manufacturing process description, this liquid cooling plate is applicable to a variety of scenarios, providing an efficient, stable and economical solution for applications that require efficient heat dissipation and cost control.

[0036] Although the exemplary embodiments of the present disclosure have been described, those skilled in the art should understand that various changes and modifications can be made to the exemplary embodiments of the present disclosure without departing from the spirit and scope of the present disclosure in essence. Therefore, all changes and modifications are included within the protection scope of the present disclosure defined by the claims. The present disclosure is defined by the appended claims, and equivalents of these claims are also included.

Claims

1. A harmonica - type liquid - cooling plate, characterized in that, Including: A plate-shaped body and end parts installed at both ends of the body. Among them, the interior of the body is hollow, and a channel is formed and opened along the length direction. The channel is separated by a positive inclined plate and a reverse inclined plate arranged along the width direction of the body into alternately arranged positive triangular flow channels and inverted triangular flow channels. Among them, spoiler plates are arranged in the positive triangular flow channels, and the spoiler plates are self-twisted and rotated into a spiral structure; a liquid inlet connected to one end of each positive triangular flow channel is provided on one end part, and a liquid outlet connected to the other end of each positive triangular flow channel is provided on the other end part, so that each positive triangular flow channel is in parallel connection between the inlet and the outlet.

2. The harmonica-type liquid cooling plate as described in claim 1, wherein: The width of the spoiler plate is 0.3-0.5 times the perpendicular length of the positive triangular flow channel.

3. The harmonica-type liquid cooling plate as described in claim 1, wherein: The spoiler plate is vertically arranged in the positive triangular flow channel, and the upper end of the spoiler plate is connected to the upper end of the positive triangular flow channel, and the lower end of the spoiler plate is separated from the bottom surface of the positive triangular flow channel.

4. The harmonica-type liquid cooling plate as described in claim 1, characterized in that: A heat-conducting silica gel layer with a thickness of 0.2-0.8 mm is provided at the bottom of the body.

5. The accordion - type liquid - cooling plate as described in claim 1, wherein: In the body, at least one inverted triangular flow channel is inserted and fixed with a triangular rod adapted to the shape and size of the flow channel for improving the structural strength of the body.

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