Support device and battery pack

Abstract

The application discloses a supporting device and a battery pack, and belongs to the technical field of the battery pack. The supporting device comprises an elastic base body, and the elastic base body has a first surface used for adhering to a to-be-supported part. A plurality of slits are arranged on the first surface, and adjacent slits form elastic blocks which can be deformed independently. The elastic base body is configured to be elastically compressed and deformed when subjected to pressure applied by the to-be-supported part, so that the first surface is adapted to the contour of the to-be-supported part, the concave-convex contour of the surface of the to-be-supported part can be better adapted, and adhesion is realized. Therefore, the supporting effect is enhanced, the local gap is reduced, the stability of the structure of the battery pack is facilitated to be maintained, and the reliability during long-term use is facilitated to be ensured.

Description

Technical Field

[0001] This application relates to the field of battery pack technology, and more particularly to a support device and a battery pack. Background Technology

[0002] The bottom of a battery pack in a new energy vehicle typically features a liquid cooling plate with internal cooling channels for thermal management of the battery cells. A gap often exists between the liquid cooling plate and the bottom plate; in current technology, this gap is generally filled with foam. The foam provides support, as well as thermal insulation and shock absorption.

[0003] In related technologies, foam is usually attached to the flow channel surface of the liquid cooling plate with double-sided adhesive, but its effect on supporting the gap between the liquid cooling plate and the bottom plate is limited, making it difficult to meet the requirements of battery pack structural stability and long-term reliability. Utility Model Content

[0004] This application provides a support device and a battery pack, which improves the support effect on the liquid cooling plate, thereby at least partially solving the above-mentioned technical problems.

[0005] To achieve the above objectives, according to a first aspect of this application, a support device is provided, comprising: An elastic matrix having a first surface for conforming to the component to be supported; Multiple slits are provided on the first surface, and elastic blocks that can be deformed independently are formed between adjacent slits; The elastic matrix is ​​configured such that when subjected to pressure applied by the member to be supported, the elastic block undergoes elastic compression deformation so that the first surface conforms to the contour of the member to be supported.

[0006] By adopting the above technical solution and setting slits on the first surface, multiple independent elastic blocks can be formed. These blocks at different locations undergo elastic deformation under pressure, thus better adapting to the uneven contours of the surface to be supported, achieving a proper fit. This not only enhances the support effect and reduces local gaps but also helps maintain the stability of the battery pack structure and the reliability of its long-term use.

[0007] In some embodiments, the elastic matrix has a first region and a second region; In the thickness direction of the elastic matrix, the thickness of the elastic block in the first region is less than the thickness of the elastic block in the second region.

[0008] By employing the above technical solution, elastic blocks of varying thicknesses are placed in different regions of the elastic matrix, enabling differentiated compressive deformation capabilities in different areas. The thicker portions are suitable for fitting with the recessed areas of the component to be supported, while the thinner portions are suitable for fitting with the protruding areas, thus forming a tight fit and providing support. This achieves zoned fitting and zoned support, which helps improve overall compatibility and structural stability.

[0009] In some embodiments, the depth of the slit is 0.5-0.8 times the maximum thickness of the elastic matrix.

[0010] By adopting the above technical solution and limiting the slit depth to between 0.5 and 0.8 times the thickness of the elastic matrix, it is possible to maintain the overall strength of the elastic matrix while ensuring that the elastic blocks between the slits have sufficient independent deformation capacity. This allows the matrix to adapt to the uneven structure of the surface of the component to be supported without causing the matrix to break easily due to excessively deep slits.

[0011] In some embodiments, the depth of the slit is 0.6-0.7 times the maximum thickness of the elastic matrix.

[0012] By adopting the above technical solutions, the elastic block has better independent deformation and support performance when it fits the surface of the part to be supported, improving the fitting accuracy, and making it easier to process the elastic substrate under standardized production processes.

[0013] In some embodiments, the depth of the cut is 2 mm to 6 mm.

[0014] By adopting the above technical solution, the slit depth is controlled within the range of 2-6 mm, allowing the elastic matrix to adapt to the shape of common recessed grooves on the component to be supported. This range provides sufficient deformation space for the elastic block while avoiding the impact of excessively deep slits on the overall mechanical strength, thus improving fit while ensuring structural reliability.

[0015] In some embodiments, the depth of the cut is 3 to 5 millimeters.

[0016] By adopting the above technical solution, the elastic block can fully enter the groove and deform when it corresponds to the recessed groove of the support component, thereby achieving a tighter fit, which is beneficial to improving the matching degree and stability between the support device and the support component.

[0017] In some embodiments, the distance between adjacent cuts is 1 mm to 5 mm.

[0018] By adopting the above technical solution and setting the distance between adjacent cuts to 1-5 mm, the size of the formed elastic block can be controlled. The smaller the size of the elastic block, the stronger its independent deformation capability, thus enabling it to more precisely adapt to the surface contour of the component to be supported. At the same time, this range also avoids the structural fragility caused by excessively dense cuts.

[0019] In some embodiments, the distance between adjacent cuts is 2 mm to 4 mm.

[0020] By adopting the above technical solution, the width of the elastic block formed between adjacent cuts can be in an integer ratio to the width of the recessed groove in the liquid cooling plate, thereby achieving an orderly correspondence between the elastic substrate and the liquid cooling plate. This not only helps to improve the standardization of the elastic substrate processing but also facilitates improved assembly accuracy, thus improving production efficiency to a certain extent.

[0021] In some embodiments, the ratio of the depth of the slit to the width between adjacent slits is 0.4-6.

[0022] By adopting the above technical solution, and by limiting the ratio range of the slit depth to the slit spacing, the elastic block formed by the slit maintains a reasonable ratio between its thickness and width, avoiding the problems of "thin and long blocks being easy to break" or "overly wide blocks being difficult to deform independently", thus taking into account both flexible bonding and mechanical strength.

[0023] In some embodiments, the ratio of the depth of the kerf to the width between adjacent kerfs is 0.75-2.5.

[0024] By adopting the above technical solution, the force distribution of the elastic block during compression deformation is more uniform, which can achieve better fit while ensuring support performance, and is especially suitable for maintaining stable fit under long-term battery pack operation conditions.

[0025] According to a second aspect of this application, a battery pack is provided, including the support device described in the above-described technical solution.

[0026] By adopting the above technical solution and introducing this support device into the battery pack, the foam support between the liquid cooling plate and the bottom plate fits the concave and convex structure of the liquid cooling plate better, thereby improving the structural stability, thermal management consistency and service life of the battery pack.

[0027] In some embodiments, a liquid cooling plate is also included, the support device is used to support the liquid cooling plate, the first surface is in contact with the surface of the liquid cooling plate, the surface of the liquid cooling plate has a recessed groove, and at least one of the elastic blocks is located in the recessed groove.

[0028] By adopting the above technical solution, the elastic block located in the recessed groove can contact the inner wall of the recessed groove, forming a relatively stable support interface. This not only helps to fill the gap that may exist between the liquid cooling plate recessed groove and the support device, but also can disperse the local stress concentration of the liquid cooling plate to a certain extent, thereby reducing the local displacement of the liquid cooling plate caused by vibration or thermal expansion and contraction during operation.

[0029] In some embodiments, the ratio of the width of the recessed groove to the distance between adjacent cuts is an integer.

[0030] By adopting the above technical solution, the width of the recessed groove and the slit spacing are designed to be an integer ratio, so that the elastic block and the recessed groove can be matched, thereby improving the matching accuracy between the elastic substrate and the liquid cooling plate, facilitating standardized processing of the die-cutting process, and avoiding alignment deviations.

[0031] In some embodiments, the depth of the slit is greater than or equal to the depth of the recessed groove.

[0032] By adopting the above technical solution, and by making the slit depth greater than or equal to the depth of the recessed groove of the liquid cooling plate, the elastic block can effectively extend into the recessed groove when under pressure, achieving full fit, reducing gaps, improving bonding stability, and avoiding problems such as elastic substrate detachment or abnormal noise caused by uneven force.

[0033] In the support device of this application embodiment, a slit is provided on the first surface, dividing the elastic matrix into multiple independent elastic blocks. The elastic blocks at different locations can undergo elastic deformation under pressure, thereby adapting to conform to the concave and convex contours of the surface of the component to be supported. This method helps to enhance the support effect on the component, reduce local gaps, and further improve the stability of the battery pack structure and its long-term reliability.

[0034] Other features and advantages of this application will be described in detail in the following detailed description section. Attached Figure Description

[0035] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0036] To gain a more complete understanding of this application and its beneficial effects, the following description will be provided in conjunction with the accompanying drawings, wherein the same reference numerals in the following description denote the same parts.

[0037] Figure 1 This is a schematic diagram of the structure of the elastic matrix provided in an exemplary embodiment of this disclosure; Figure 2 This is a schematic diagram of the structure of another elastic matrix provided in an exemplary embodiment of this disclosure; Figure 3 This is a schematic diagram of the structure of the liquid cooling plate provided in an exemplary embodiment of this disclosure.

[0038] Explanation of reference numerals in the attached figures: 10. Liquid cooling plate; 11. Recessed groove; 100. Elastic matrix; 110. First surface; 120. Cut; 130. Elastic block; 140. First region; 150. Second region. Detailed Implementation

[0039] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the protection scope of this application.

[0040] According to the first aspect of this application, referring to Figures 1 to 3 This disclosure provides a support device for a battery pack. Exemplarily, the battery pack includes a liquid cooling plate 10 and a bottom plate, and the support device is disposed between the liquid cooling plate 10 and the bottom plate to provide support and cushioning for the liquid cooling plate 10.

[0041] In some embodiments, the liquid cooling plate 10 is provided with cooling channels. Due to the design of the cooling channels, the surface of the liquid cooling plate 10 forms a corresponding uneven structure, that is, a groove 11 is formed between adjacent protruding structures. When the support device contacts the surface of the liquid cooling plate 10, the support device can adapt to the uneven structure of the surface of the liquid cooling plate 10, thereby providing distributed support for the liquid cooling plate 10.

[0042] In some embodiments, refer to Figure 1 and Figure 2 The support device includes an elastic substrate 100 having a first surface 110 for conforming to the member to be supported. Multiple slits 120 are provided on the first surface 110, and independently deformable elastic blocks 130 are formed between adjacent slits 120. The elastic substrate 100 is configured such that, when subjected to pressure applied by the member to be supported, the elastic blocks 130 undergo elastic compressive deformation, so that the first surface 110 conforms to the contour of the member to be supported.

[0043] Through the above structural arrangement, the elastic blocks 130 at different positions can deform separately, allowing the support device to adapt to the irregular structure of the surface of the component to be supported. This arrangement is beneficial to enhancing the local and overall support effect, enabling the support device to reduce local gaps to a certain extent when under stress, while providing a certain buffering effect on the component to be supported, which is conducive to maintaining the structural stability and long-term reliability of the overall device.

[0044] It should be understood that the “contour adaptation” mentioned in the text is not limited to completely gapless contact, but rather refers to the ability of the first surface 110 of the elastic substrate 100 to conform to the surface of the component to be supported to a certain extent through the local deformation of the elastic block 130.

[0045] In some embodiments, refer to Figure 1 and Figure 2 The elastic matrix 100 can be a sheet structure with its thickness direction perpendicular to the surface of the part to be supported, and the first surface 110 is used to fit against the part to be supported. The elastic matrix 100 can be made of rubber, foam material, elastic polymer or other materials with certain elasticity and compression recovery ability, so that it can undergo elastic compression deformation when subjected to force, thereby adapting to the concave and convex contours of the surface of the part to be supported.

[0046] Multiple slits 120 are provided on the first surface 110. The slits 120 are arranged at regular or irregular intervals along at least one direction, and elastic blocks 130 that can be deformed independently are formed between adjacent slits 120. The slits 120 can be formed by die-cutting, pressure cutting, laser cutting, or CNC engraving. The depth, width, and spacing of the slits 120 can be adjusted according to the dimensions of the concave and convex structures on the surface of the component to be supported, so that each elastic block 130 can deform to a certain extent to fit the concave or convex areas when under pressure. For example, in the application of the liquid cooling plate 10, the spacing of the slits 120 can be designed to form an integer ratio with the width of the recessed groove 11 of the liquid cooling plate 10, so that the elastic blocks 130 can correspond to the recessed groove 11 to a certain extent, thereby improving the support and fitting effect.

[0047] In some embodiments, refer to Figure 1 and Figure 2 The elastic matrix 100 can be divided into different regions, each with slightly different thicknesses or dimensions of elastic blocks 130, to provide different compressive deformation capabilities at recessed or raised locations. Through this structural arrangement, the elastic matrix 100 can not only provide local support but also buffer vibrations and impacts as a whole, thereby benefiting the structural stability and long-term reliability of the supported component.

[0048] In some embodiments, refer to Figure 2 and Figure 3The elastic substrate 100 has a first region 140 and a second region 150. In the thickness direction of the elastic substrate 100, the thickness of the elastic block 130 in the first region 140 is less than the thickness of the elastic block 130 in the second region 150. By setting elastic blocks 130 of different thicknesses in different regions, the elastic substrate 100 can exhibit differentiated compressive deformation capabilities in different parts. Specifically, the thicker elastic block 130 is suitable for mating with the recessed areas of the component to be supported, filling the recesses under pressure; the thinner elastic block 130 is suitable for mating with the protruding areas of the component to be supported, making it easier to conform to the protruding surfaces under pressure. Through this structural arrangement, the elastic substrate 100 can achieve zoned fitting and zoned support, thereby improving overall compatibility and structural stability to a certain extent.

[0049] For example, when the elastic substrate 100 is bonded to the liquid cooling plate 10, the elastic block 130 of the first region 140 is located outside the recessed groove 11 of the liquid cooling plate 10, and the elastic block 130 of the second region 150 is located inside the recessed groove 11. With this configuration, the thicker elastic block 130 of the second region 150 undergoes elastic compression deformation within the recessed groove 11 to fill the depression; the thinner elastic block 130 of the first region 140 is moderately compressed outside the recessed groove 11, thereby achieving partitioned bonding and support of the surface of the liquid cooling plate 10. This structural arrangement is beneficial for improving support uniformity and, to a certain extent, enhances the overall stability of the liquid cooling plate 10.

[0050] In some embodiments, refer to Figure 1 and Figure 2 The depth of the slit 120 is 0.5-0.8 times the maximum thickness of the elastic substrate 100. By limiting the depth of the slit 120 within this range, the overall mechanical strength of the elastic substrate 100 and the independent deformation capability of the elastic block 130 between the slits 120 can be balanced to a certain extent. Specifically, when the elastic block 130 is compressed, it can be moderately compressed to conform to the uneven structure of the surface of the part to be supported, thereby achieving zoned support and conformation in the recessed groove 11 and the raised area. At the same time, since the slit 120 does not penetrate the entire thickness of the substrate, the elastic substrate 100 as a whole maintains a certain strength, reducing the risk of substrate cracking or damage that may be caused by the slit 120 being too deep. In addition, the setting of the slit 120 depth is conducive to achieving uniform deformation of the elastic block 130 during the compression process, so that the support device can adapt to the irregularity of the surface of the liquid cooling plate 10 or other parts to be supported to a certain extent, thereby improving the conformation accuracy and structural stability.

[0051] For example, the depth of the slit 120 is 0.51, 0.52, 0.54, 0.55, 0.56, 0.57, 0.58, 0.59, 0.60, 0.61, 0.62, 0.64, 0.66, 0.67, 0.68, 0.70, 0.72, 0.74, 0.76, 0.78, or 0.8 times the maximum thickness of the elastic matrix 100. This application embodiment does not limit this.

[0052] It should be understood that the term "maximum thickness" refers to the fact that the elastic matrix 100 may have different dimensions in the thickness direction. For example, when it has partitioned structures with different thicknesses in different regions, the thickness of each region may differ. In this case, the depth of the slit 120 is related to the part with the largest thickness in all regions of the elastic matrix 100, that is, the maximum dimension is used as a reference value.

[0053] In some embodiments, the depth of the slit 120 is 0.6-0.7 times the maximum thickness of the elastic substrate 100. By setting the depth of the slit 120 within this range, the elastic block 130 can obtain better independent deformation capability when pressed against the surface of the part to be supported, thereby better adapting to uneven contours and achieving zoned bonding and zoned support. This depth range is beneficial for improving bonding accuracy and also maintains the overall structural strength of the elastic substrate 100 to a certain extent, avoiding insufficient deformation of the elastic block 130 due to an excessively shallow slit 120 or affecting the stability of the substrate due to an excessively deep slit 120. In addition, this slit 120 depth range facilitates the implementation of standardized processing techniques, such as die-cutting or pressure cutting, which can help improve processing efficiency and consistency during production, while also facilitating reliable matching between the elastic substrate 100 and the surface of the part to be supported.

[0054] For example, the depth of the slit 120 is 0.60, 0.61, 0.62, 0.64, 0.66, 0.67, 0.68 or 0.70 of the maximum thickness of the elastic matrix 100, but this application embodiment does not limit this.

[0055] In some embodiments, the depth of the slit 120 is 2 mm to 6 mm. By controlling the depth of the slit 120 within this range, the elastic substrate 100 can adequately cover the shape of common recesses 11 on the member to be supported, allowing the elastic block 130 sufficient deformation space under pressure, thereby better conforming to the recessed area. At the same time, this depth range avoids the possibility that an excessively deep slit 120 may adversely affect the overall mechanical strength of the elastic substrate 100, thus improving the conforming performance while also helping to maintain the structural reliability of the support device.

[0056] For example, the depth of the slit 120 is 2 mm, 2.05 mm, 2.12 mm, 2.18 mm, 2.25 mm, 2.33 mm, 2.41 mm, 2.49 mm, 2.55 mm, 2.63 mm, 2.71 mm, 2.78 mm, 2.85 mm, 2.93 mm, 3.01 mm, 3.07 mm, 3.15 mm, 3.22 mm, 3.30 mm, 3.38 mm, 3.44 mm, 3.52 mm, 3.60 mm, 3.67 mm, 3.74 mm, 3.8 mm, etc. The dimensions are 2 mm, 3.90 mm, 3.97 mm, 4.05 mm, 4.12 mm, 4.20 mm, 4.28 mm, 4.34 mm, 4.41 mm, 4.49 mm, 4.55 mm, 4.63 mm, 4.70 mm, 4.78 mm, 4.85 mm, 4.92 mm, 5.00 mm, 5.08 mm, 5.15 mm, 5.23 mm, 5.30 mm, 5.38 mm, 5.45 mm, 5.53 mm, 5.60 mm, or 6 mm, but the embodiments of this application are not limited to these dimensions.

[0057] It should be understood that the depth of the slit 120 can be referenced in different ways in this application. For example, the depth of the slit 120 can be the dimension extending from the top surface of the elastic matrix 100 at its maximum thickness to the interior of the elastic matrix 100; in another case, the depth of the slit 120 can also be the dimension extending from the top surface of the elastic matrix 100 at its minimum thickness to the interior of the elastic matrix 100. In other words, when the elastic matrix 100 has different regional thicknesses in the thickness direction, the depth of the slit 120 can be measured based on either the region with the largest overall thickness or the region with the smallest local thickness. This application does not limit this aspect.

[0058] The above methods enable the slit 120 to be adaptable to elastic substrates 100 with different thicknesses. For example, when the depth of the slit 120 refers to the maximum thickness area of ​​the elastic substrate 100, it helps to ensure that the overall elastic block 130 has a large deformation space; when the depth of the slit 120 refers to the minimum thickness area of ​​the elastic substrate 100, it facilitates more flexible fitting in local thin areas, thus ensuring both support and flexible adaptability in different application scenarios.

[0059] In some embodiments, the depth of the slit 120 is 3 to 5 millimeters. By controlling the depth of the slit 120 within this range, the elastic block 130 can fully enter the groove and undergo elastic deformation when corresponding to the recessed groove 11 of the member to be supported, thereby achieving a tighter fit. This structural design is beneficial to improving the matching degree and overall stability between the support device and the member to be supported, while also helping to maintain a reliable support effect during long-term use while maintaining the appropriate flexibility of the elastic matrix 100.

[0060] For example, the depth of the slit 120 is 3.00 mm, 3.07 mm, 3.15 mm, 3.22 mm, 3.30 mm, 3.38 mm, 3.44 mm, 3.52 mm, 3.60 mm, 3.67 mm, 3.74 mm, 3.82 mm, 3.90 mm, 3.97 mm, 4.05 mm, 4.12 mm, 4.20 mm, 4.28 mm, 4.34 mm, 4.41 mm, 4.49 mm, 4.55 mm, 4.63 mm, 4.70 mm, 4.78 mm, 4.85 mm, 4.92 mm, or 5.00 mm, and this application embodiment does not limit this.

[0061] In some embodiments, the distance between adjacent slits 120 is 1 mm to 5 mm. By controlling the slit spacing 120 within this range, the size of the elastic block 130 formed by the slits 120 can be adjusted. When the slit spacing 120 is small, the size of the formed elastic block 130 is relatively smaller, and its independent deformation capability under pressure is stronger, thus enabling it to more precisely conform to the concave and convex contours of the surface to be supported; while when the slit spacing 120 is moderately increased, it helps to maintain the overall mechanical strength and avoids the matrix from becoming fragile due to excessively dense slits. Thus, this range balances elastic adaptability and structural reliability, making it suitable for application requirements in different support scenarios.

[0062] For example, the distance between adjacent cuts 120 is 1.00 mm, 1.10 mm, 1.25 mm, 1.30 mm, 1.45 mm, 1.60 mm, 1.75 mm, 1.90 mm, 2.00 mm, 2.10 mm, 2.20 mm, 2.35 mm, 2.50 mm, 2.60 mm, 2.70 mm, 2.85 mm, 2.95 mm, 3.00 mm, 3.10 mm, 3.20 mm, 3... The dimensions may be 0.35 mm, 3.45 mm, 3.55 mm, 3.65 mm, 3.75 mm, 3.85 mm, 3.95 mm, 4.00 mm, 4.10 mm, 4.20 mm, 4.30 mm, 4.35 mm, 4.45 mm, 4.55 mm, 4.60 mm, 4.70 mm, 4.75 mm, 4.80 mm, 4.85 mm, 4.90 mm, or 5.00 mm, but this application does not limit the dimensions to these dimensions.

[0063] In some embodiments, the distance between adjacent slits 120 is 2 mm to 4 mm. By controlling the spacing of adjacent slits 120 within this range, the width of the elastic block 130 formed between adjacent slits 120 can form an integer ratio with the width of the recessed groove 11 of the liquid cooling plate 10. With this design, adjacent elastic blocks 130 can form a regular correspondence when they are attached to the recessed groove 11 of the liquid cooling plate 10, thereby enabling the elastic substrate 100 to be arranged in an orderly manner during the attachment process with the liquid cooling plate 10.

[0064] Specifically, the width of the elastic block 130 can be matched with the recessed groove 11 in a one-to-one or many-to-one manner. This matching relationship not only helps improve the positioning accuracy of the foam and the liquid cooling plate 10 during assembly, but also gives the elastic substrate 100 a higher degree of standardization during die-cutting or pressure-cutting processes. This can reduce the occurrence of alignment deviations to a certain extent, improve assembly accuracy, and further improve production efficiency.

[0065] It should be understood that, in different embodiments, the correspondence between the elastic block 130 and the recessed groove 11 can be either a single elastic block 130 corresponding to a single recessed groove 11, or multiple elastic blocks 130 jointly corresponding to a recessed groove 11. This application does not limit this.

[0066] For example, the distance between adjacent cuts 120 is 2.00 mm, 2.10 mm, 2.20 mm, 2.35 mm, 2.50 mm, 2.60 mm, 2.70 mm, 2.85 mm, 2.95 mm, 3.00 mm, 3.10 mm, 3.20 mm, 3.35 mm, 3.45 mm, 3.55 mm, 3.65 mm, 3.75 mm, 3.85 mm, 3.95 mm, or 4.00 mm, and this application embodiment does not limit this.

[0067] In some embodiments, the ratio of the depth of the slit 120 to the width between adjacent slits 120 is 0.4-6. By limiting the range of the ratio of the slit depth to the spacing between slits 120, the elastic blocks 130 formed between the slits 120 maintain a reasonable proportional relationship in the thickness and width directions.

[0068] Specifically, when the ratio is in a lower range (e.g., 0.4-1), the elastic block 130 has a relatively small thickness and a large width. This structure is more suitable for use when fitting large, gently sloping recessed surfaces, helping to improve the overall flatness of the fit. When the ratio is in a higher range (e.g., 4-6), the elastic block 130 has a relatively large thickness and a small width. This structure is more suitable for quickly adapting to local protrusions or deep grooves with large height differences, possessing strong local independent deformation capabilities. The intermediate range (e.g., 1-4) balances overall fit and local support, suitable for matching the uneven surfaces of common liquid cooling plates 10.

[0069] Therefore, by limiting the ratio, the problem of "slender blocks easily breaking" caused by the excessively small width of the elastic block 130 is avoided on the one hand, and the situation where it is difficult to achieve independent elastic deformation when the width of the elastic block 130 is too large is also avoided. To a certain extent, the flexibility and fit of the support device are balanced with the overall mechanical strength, making it easy to apply stably to support components with different shapes.

[0070] It should be understood that the above ratio is not fixed and its value can be appropriately adjusted according to the width, depth and distribution of the groove on the surface of the liquid cooling plate 10. This application embodiment does not limit this.

[0071] For example, the ratio of the depth of the slit 120 to the width between adjacent slits 120 is 0.40, 0.52, 0.66, 0.73, 0.81, 0.95, 1.08, 1.15, 1.32, 1.47, 1.63, 1.78, 1.95, 2.05, 2.18, 2.36, 2.52, 2.67, 2.83, 3.01, 3.15, 3.28, 3.45, 3.62, 3.80, 3.96, 4.12, 4.35, 4.50, 4.68, 4.85, 5.02, 5.18, 5.33, 5.48, 5.63, 5.75, 5.85, 5.92, 5.99, or 6. This application embodiment does not limit this.

[0072] In some embodiments, the ratio of the depth of the slit 120 to the width between adjacent slits 120 is 0.75-2.5. By limiting this ratio range, the elastic block 130 formed by the slits 120 maintains a suitable proportional relationship in the thickness and width directions. When the ratio is within the above range, the elastic block 130 can exhibit a more balanced force distribution during compression deformation, thus possessing both sufficient support capacity and good independent deformation performance. Consequently, a more stable fit can be achieved when the support device is fitted to the liquid cooling plate 10 or similar support member with an uneven structure. Furthermore, setting this range also helps maintain the matching state between the support device and the liquid cooling plate 10 under long-term battery pack operation conditions, thereby improving the overall assembly reliability and service life to a certain extent.

[0073] For example, the ratio of the depth of the slit 120 to the width between adjacent slits 120 can be 0.75, 0.8, 0.9, 1.05, 1.2, 1.35, 1.5, 1.65, 1.8, 1.95, 2.1, 2.3 or 2.5, and the embodiments of this application do not limit this.

[0074] According to the second aspect of this disclosure, referring to Figure 2 and Figure 3A battery pack is provided, including the support device described in the above embodiments. This battery pack possesses all the beneficial effects of the aforementioned support device, which will not be elaborated further herein.

[0075] By introducing the aforementioned support device into the battery pack, the surface irregularities of the liquid cooling plate 10 can achieve a suitable match with the elastic block 130 of the support device. For example, when the surface of the liquid cooling plate 10 forms multiple protrusions and recesses 11 due to the arrangement of cooling channels, the elastic block 130 in the support device can, under compression deformation, enter the recesses 11 or cover the spaces between the protrusions, thereby improving the fit between the support device and the liquid cooling plate 10 to a certain extent. This helps to enhance the stability of the liquid cooling plate 10 when subjected to external forces or operational vibrations.

[0076] Furthermore, since the elastic block 130 can deform independently according to the surface contour of the liquid cooling plate 10, the support device can assist the liquid cooling plate 10 in obtaining differentiated support effects in different areas. This helps the cooling channels inside the liquid cooling plate 10 to operate stably, maintaining a high degree of consistency in heat conduction and dissipation. Based on this, the battery pack can maintain structural stability, thermal management uniformity, and service life to a certain extent under long-term operating conditions.

[0077] In some embodiments, refer to Figure 2 and Figure 3 It also includes a liquid cooling plate 10, a support device for supporting the liquid cooling plate 10, a first surface 110 that is in contact with the surface of the liquid cooling plate 10, the surface of the liquid cooling plate 10 having a recessed groove 11, and at least one elastic block 130 located in the recessed groove 11.

[0078] In some embodiments, the ratio of the width of the recessed groove 11 to the distance between adjacent slits 120 is an integer. By adopting this ratio design, the formed elastic block 130 can correspond to the recessed groove 11 to a certain extent, thereby improving the matching accuracy between the elastic substrate 100 and the liquid cooling plate 10. Exemplarily, this design is beneficial for the standardization of die-cutting or pressure-cutting processes, making it easier to position and align the elastic substrate 100 when it is attached to the liquid cooling plate 10, thereby reducing the impact of alignment deviations on the support effect and assembly accuracy to a certain extent.

[0079] For example, one recessed groove 11 can correspond to multiple elastic blocks 130, making the elastic substrate 100 fit more evenly in the recessed groove 11, distributing the force, reducing the possibility of uneven local compression, and thus improving the support performance to a certain extent. This design is beneficial for the standardization of die-cutting or pressure-cutting processes, making it easier to position and align the elastic substrate 100 when it is bonded to the liquid cooling plate 10, while reducing the impact of alignment deviations on the support effect and assembly accuracy.

[0080] For example, along the length of the liquid cooling plate 10, the width of the recessed groove 11 is an integer multiple of the arrangement of the elastic blocks 130, allowing multiple elastic blocks 130 to uniformly fill a recessed groove 11. Each elastic block 130 has a certain elastic deformation space in the thickness direction, enabling moderate compression within the groove. This structural arrangement helps to distribute localized forces, reducing the risk of excessive local deformation of the elastic blocks 130, while also improving the uniformity of the fit between the liquid cooling plate 10 and the support device. By standardizing the ratio of the slit spacing 120 to the width of the recessed groove 11, die-cutting or pressure-cutting processes can be facilitated, improving the precision and consistency of the support device production, thereby enhancing the overall assembly precision and structural stability of the battery pack.

[0081] In some embodiments, the depth of the slit 120 is greater than or equal to the depth of the recess 11. With this design, when the elastic substrate 100 is bonded to the liquid cooling plate 10, the resulting elastic block 130 can fully extend into the recess 11 under pressure, thereby allowing the first surface 110 to more tightly conform to the surface contour of the liquid cooling plate 10. For example, for a liquid cooling plate 10 with a recess 11 depth of 3 mm, the slit 120 depth can be selected from 3 mm to 5 mm, causing the elastic block 130 to undergo moderate compression within the recess 11, while the elastic block 130 in the raised area still maintains a certain thickness to provide support.

[0082] By arranging the slit 120 to a depth greater than or equal to the groove 11, the elastic block 130 can be evenly stressed under pressure, thereby improving the matching accuracy and support uniformity between the foam and the liquid cooling plate 10. During vehicle operation, this design helps to reduce the impact of local vibrations and impacts on the elastic substrate 100, reducing the possibility of detachment due to uneven stress or abnormal noise caused by the elastic block 130 hitting the liquid cooling plate 10, thus improving the structural stability of the battery pack to a certain extent.

[0083] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0084] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0085] The embodiments, implementation methods, and related technical features of this application can be combined and substituted for each other without conflict.

[0086] The above are merely preferred embodiments of this application and are not intended to limit this application in any way. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this application without departing from the technical solution of this application shall still fall within the scope of the technical solution of this application.

Claims

1. A support device, characterized in that, include: An elastic substrate (100) has a first surface (110) for conforming to the member to be supported; The first surface (110) is provided with multiple slits (120), and an elastic block (130) that can be deformed independently is formed between adjacent slits (120); The elastic matrix (100) is configured such that when subjected to pressure applied by the member to be supported, the elastic block (130) undergoes elastic compression deformation so that the first surface (110) conforms to the contour of the member to be supported.

2. The support device of claim 1, wherein The elastic matrix (100) has a first region (140) and a second region (150); In the thickness direction of the elastic matrix (100), the thickness of the elastic block (130) in the first region (140) is less than the thickness of the elastic block (130) in the second region (150).

3. The support device of claim 1, wherein, The depth of the slit (120) is 0.5-0.8 times the maximum thickness of the elastic matrix (100).

4. The support device of claim 3, wherein, The depth of the slit (120) is 0.6-0.7 times the maximum thickness of the elastic matrix (100).

5. The support device of claim 1, wherein, The depth of the cut (120) is 2 mm to 6 mm.

6. The support device of claim 5, wherein, The depth of the cut (120) is 3 mm to 5 mm.

7. The support device of claim 1, wherein The distance between adjacent cuts (120) is 1 mm to 5 mm.

8. The support device of claim 7, wherein, The distance between adjacent cuts (120) is 2 mm to 4 mm.

9. The support device of claim 1, wherein, The ratio of the depth of the slit (120) to the width between adjacent slits (120) is 0.4-6.

10. The support apparatus of claim 9, wherein, The ratio of the depth of the slit (120) to the width between adjacent slits (120) is 0.75-2.

5.

11. A battery pack, characterized by Includes the support device as described in any one of claims 1 to 10.

12. The battery pack of claim 11, wherein, It also includes a liquid cooling plate (10), the support device is used to support the liquid cooling plate (10), the first surface (110) is in contact with the plate surface of the liquid cooling plate (10), the surface of the liquid cooling plate (10) has a recessed groove (11), and at least one of the elastic blocks (130) is located in the recessed groove (11).

13. The battery pack of claim 12, wherein, The ratio of the width of the recessed groove (11) to the distance between adjacent cuts (120) is an integer.

14. The battery pack of claim 12, wherein, The depth of the cut (120) is greater than or equal to the depth of the recess (11).

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