Cold storage module, cold storage module and energy storage system

Abstract

The utility model provides a cold accumulation module, cold accumulation module and energy storage system, cold accumulation module includes cold accumulation rod array and fix the spacing subassembly of cold accumulation rod array, cold accumulation rod array includes a plurality of cold accumulation rods, any one cold accumulation rod upper and lower both ends are equipped with spacing projection, and the spacing projection is equipped with the spacing projection. The limiting assembly comprises a fixing assembly and limiting end plates arranged on the two opposite sides of the cold storage rod array, the limiting end plates are provided with a plurality of positioning holes matched with the multiple limiting protrusions located on the same side of the cold storage rod array in a one-to-one correspondence mode for limiting, and the limiting protrusions are arranged in the corresponding positioning holes of the limiting end plate on the corresponding side in a penetrating mode. The limiting end plates on the two sides of the cold storage rod array are connected through a fixing assembly. According to the technical scheme, on the basis that the effect of improving the cold storage capacity and the space utilization rate of the cold storage module is guaranteed, the limiting effect of the limiting assembly on the cold storage rod array and the maintaining effect of the limiting assembly on the cold storage rod array are improved, and the reliability and stability of the cold storage rod array are further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of energy storage systems, and in particular to a cold storage module, a cold storage module and an energy storage system. Background Art

[0002] The cold storage module is a device that uses phase change materials to store cold and provide cooling capacity. Applying the cold storage module to the energy storage system can achieve peak shaving and valley filling at the thermal management level and improve thermal management efficiency. With the rapid development of the energy storage industry, the energy storage system has higher and higher requirements for energy density. This requires that when the cold storage module is used, the cold storage module body also needs to have a high volume utilization rate, so that the energy storage thermal management system has as much cold storage capacity as possible.

[0003] In order to increase the cold storage capacity of the cold storage module, the cold storage module in the prior art is usually composed of multiple cold storage modules, and the cold storage module is usually composed of multiple cold storage rods. However, such a configuration is difficult to ensure the limiting effect of the multiple cold storage rods and the relative positions between the multiple cold storage rods. Utility Model Content

[0004] The utility model provides a cold storage module, a cold storage module and an energy storage system, so as to improve the limiting effect of the relative positions of a cold storage rod in the cold storage module and a plurality of cold storage rods.

[0005] In order to achieve the above-mentioned purpose, according to one aspect of the utility model, the utility model provides a cold storage module, including a cold storage rod array and a limiting assembly for fixing the cold storage rod array, the cold storage rod array includes multiple cold storage rods, and limiting protrusions are provided at both ends of any cold storage rod. The limiting assembly includes a fixing assembly and limiting end plates arranged on opposite sides of the cold storage rod array, and the limiting end plates are provided with multiple positioning holes that correspond one-to-one to the multiple limiting protrusions located on the same side of the cold storage rod array, and the limiting protrusions are inserted into the corresponding positioning holes of the limiting end plate on the corresponding side, and the limiting end plates on both sides of the cold storage rod array are connected by a fixing assembly.

[0006] Furthermore, the limiting protrusion includes a limiting boss arranged at the end of the cold storage rod and a guide protrusion arranged on the limiting boss, and the cross-sectional area of ​​the guide protrusion in the extension direction from the center of the cold storage rod to the two ends gradually decreases.

[0007] Furthermore, the shape of the positioning hole on the limiting end plate is adapted to the shape of the guide protrusion at the end of the cold storage rod on the corresponding side, and the shapes of the guide protrusions at both ends of the cold storage rod are different.

[0008] Furthermore, the cross-sectional shape of the guide protrusion at one end of the cold storage rod is circular, and the cross-sectional shape of the guide protrusion at the other end of the cold storage rod is rectangular.

[0009] Furthermore, there are multiple fixing components, and the multiple fixing components are arranged at circumferential intervals along the cold storage rod array. The fixing components include a fixing part and a plurality of fasteners. The fixing part includes a fixing section and two transition sections arranged at both ends of the fixing section. The two transition sections are vertically arranged on the side of the fixing section facing the cold storage rod array and respectively correspond to the limiting end plates on both sides of the cold storage rod array. Any transition section is connected to the limiting end plate on the corresponding side by at least two fasteners.

[0010] Furthermore, multiple cold storage rods are parallel and spaced apart in pairs, and multiple first flow gaps are formed between the multiple cold storage rods. The limiting end plate includes a plate body and a fixed column. The plate body is spaced apart from the end face of the cold storage rod array on the corresponding side through the fixed column to form a second flow gap connected to the multiple first flow gaps. The limiting end plate has multiple flow holes connected to the second flow gaps.

[0011] Furthermore, a plurality of side walls on the circumference of the cold storage rod are concave, and / or a rounded corner is formed between any two adjacent side walls on the circumference of the cold storage rod.

[0012] According to another aspect of the utility model, a cold storage module is provided, comprising a cold storage box, a collecting pipe assembly and the above-mentioned cold storage module, a heat exchange channel is formed between the cold storage box and the cold storage module, and the collecting pipe assembly is arranged on the cold storage box and connected to the heat exchange channel.

[0013] Furthermore, the interior of the cold storage box has a plurality of positioning columns, the limiting end plate has limiting blind holes for penetrating the positioning columns, and any cold storage module is arranged in the cold storage box through the cooperation of at least one set of positioning columns and limiting blind holes.

[0014] Furthermore, there are multiple cold storage modules, and the heat exchange flow channel is formed by connecting at least the first flow gaps and the second flow gaps of the multiple cold storage modules surrounded by the cold storage box. The cold storage module is vertically arranged in the cold storage box, and the second flow gaps below the multiple cold storage modules form a water inlet area, and the second flow gaps above the multiple cold storage modules form a water outlet area. There are two collecting pipe assemblies, which are a water outlet pipe assembly and a water inlet pipe assembly respectively. The water inlet pipe assembly and the water outlet pipe assembly are connected to the water inlet area and the water outlet area respectively.

[0015] Furthermore, the cold storage module is horizontally arranged and parallel to the length direction of the cold storage box, or the cold storage module is horizontally arranged and parallel to the width direction of the cold storage box; there are two collecting pipe assemblies, and the two collecting pipe assemblies are respectively an outlet pipe assembly and an inlet pipe assembly, the inlet pipe assembly is arranged in the lower area of ​​one of the side walls of the cold storage box, and the outlet pipe assembly is arranged in the upper area of ​​the same side wall, or the outlet pipe assembly is arranged in the upper area on the opposite side wall.

[0016] Furthermore, the manifold assembly includes a water pipe, a sensor, a manifold and a shunt pipe. The water pipe is connected to the manifold, and the water pipe, the manifold and the sensor are arranged outside the cold storage box. The shunt pipe is connected to the manifold and is passed through the cold storage box. The shunt pipe has multiple shunt holes. The sensor is arranged on the manifold to detect one or more of liquid pressure, temperature and flow.

[0017] Furthermore, the outer surface of the cold storage box is covered with an insulation layer, the material of the insulation layer can be selected from aerogel pads, rock wool or EPDM, and the thickness of the insulation layer is ≥5mm.

[0018] According to another aspect of the utility model, there is provided an energy storage system, comprising an energy storage box, a battery pack and a plurality of the above-mentioned cold storage modules, wherein the plurality of cold storage modules are interconnected, the battery pack is arranged in the energy storage box, the cold storage module is pullable in the energy storage box, and / or the cold storage module is wall-mounted in the energy storage box.

[0019] The technical solution of the utility model is applied to provide a cold storage module, including a cold storage rod array and a limiting assembly for fixing the cold storage rod array, the cold storage rod array includes a plurality of cold storage rods, and limiting protrusions are provided at the upper and lower ends of any cold storage rod, the limiting assembly includes a fixing assembly and limiting end plates arranged on opposite sides of the cold storage rod array, the limiting end plates are provided with a plurality of positioning holes that correspond one-to-one with the plurality of limiting protrusions located on the same side of the cold storage rod array, the limiting protrusions are inserted into the corresponding positioning holes of the limiting end plates on the corresponding side, and the limiting end plates on both sides of the cold storage rod array are connected by the fixing assembly. By adopting this solution, the simultaneous fixing of the plurality of cold storage rods is achieved by the cooperation of the plurality of positioning holes on the limiting end plates and the limiting protrusions on the plurality of cold storage rods, and the fixed connection of the two limiting end plates on both sides of the cold storage rod array is achieved by the limiting assembly. Such a configuration is beneficial for improving the limiting effect of the limiting component on the cold storage rod array and the maintaining effect of the cold storage rod array on the basis of ensuring the improvement of the cold storage capacity and space utilization of the cold storage module, thereby further improving the reliability and stability of the cold storage rod array. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The drawings constituting part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0021] Figure 1 The schematic diagram of the structure of the cold storage module provided by the embodiment of the utility model is shown;

[0022] Figure 2 Shows Figure 1 Exploded diagram of the cold storage module;

[0023] Figure 3 Shows Figure 1 A schematic diagram of the structure of a cold storage rod and limiting protrusions at both ends of the cold storage rod in a cold storage module;

[0024] Figure 4 Shows Figure 1 A top view of an array of cold storage rods in a cold storage module;

[0025] Figure 5 The diagram shows the arrangement of the cold storage rod array provided by other embodiments of the present utility model.

[0026] Figure 6 A schematic structural diagram of a cold storage module provided by another embodiment of the utility model is shown;

[0027] Figure 7 Shows Figure 6 Internal schematic diagram of a cold storage module;

[0028] Figure 8 Shows Figure 6 A schematic diagram of the structure of a cold storage box and a header assembly of a cold storage module;

[0029] Fig. 9 The layout diagram of the cold storage module provided by other embodiments of the utility model is shown;

[0030] Fig.10 The layout diagram of the header group provided by other embodiments of the utility model is shown;

[0031] Fig.11 A structural schematic diagram of an energy storage system provided by another embodiment of the utility model is shown.

[0032] The above drawings include the following reference numerals:

[0033] 10. Cold storage rod array; 101. First flow gap; 11. Cold storage rod;

[0034] 20. Position limiting assembly; 201. Positioning hole; 202. First fixing hole; 203. Second fixing hole; 204. Flow hole; 205. Position limiting blind hole; 21. Position limiting end plate; 211. Plate body; 212. Fixing column; 213. Position limiting column; 22. Fixing assembly; 221. Fixing piece; 222. Fastener;

[0035] 30. Limiting protrusion; 31. Limiting boss; 32. Guide protrusion;

[0036] 40. Cold storage module; 41. Cold storage box; 411. Positioning column; 42. Collector assembly; 421. Water pipe; 422. Sensor; 423. Collector; 424. Diverter; 43. Cold storage module;

[0037] 50. Energy storage system; 51. Energy storage box; 52. Battery pack; 53. Liquid cooling unit; 54. Electrical module. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means a limitation on the utility model and its application or use. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0039] like Figures 1 to 4 As shown, an embodiment of the utility model provides a cold storage module 43, including a cold storage rod array 10 and a limiting assembly 20 for fixing the cold storage rod array 10, the cold storage rod array 10 includes a plurality of cold storage rods 11, and limiting protrusions 30 are provided at both ends of any cold storage rod 11, the limiting assembly 20 includes a fixing assembly 22 and a limiting end plate 21 arranged on opposite sides of the cold storage rod array 10, the limiting end plate 21 is provided with a plurality of positioning holes 201 that correspond one-to-one to the plurality of limiting protrusions 30 located on the same side of the cold storage rod array 10, the limiting protrusion 30 is penetrated into the corresponding positioning hole 201 of the limiting end plate 21 on the corresponding side, and the limiting end plates 21 on both sides of the cold storage rod array 10 are connected by the fixing assembly 22.

[0040] In this embodiment, the plurality of cold storage rods 11 are fixed simultaneously by the cooperation of the plurality of positioning holes 201 on the limiting end plate 21 and the limiting protrusions 30 on the plurality of cold storage rods 11, and the two limiting end plates 21 on both sides of the cold storage rod array 10 are fixedly connected by the limiting assembly 20. This arrangement is conducive to improving the limiting effect of the limiting assembly 20 on the cold storage rod array 10 and the maintenance effect of the cold storage rod array 10 on the basis of ensuring the effect of improving the cold storage capacity and space utilization of the cold storage module 43, and further improving the reliability and stability of the cold storage rod array 10.

[0041] like Figures 1 to 4 As shown, the limiting protrusion 30 includes a limiting boss 31 provided at the end of the cold storage rod 11 and a guide protrusion 32 provided on the limiting boss 31, and the cross-sectional area of ​​the guide protrusion 32 in the extension direction from the center to the two ends of the cold storage rod 11 gradually decreases. This arrangement facilitates the guiding installation of the limiting end plate 21 and the cold storage rod 11.

[0042] Specifically, the shape of the positioning hole 201 on the limiting end plate 21 matches the shape of the guide protrusion 32 at the end of the cold storage rod 11 on the corresponding side, and the shapes of the guide protrusions 32 at both ends of the cold storage rod 11 are different. This arrangement is conducive to foolproof installation of the limiting end plate 21 and the cold storage rod array 10, and ensures the reliability of installation.

[0043] Furthermore, the cross-sectional shape of the guide protrusion 32 at one end of the cold storage rod 11 is circular, and the cross-sectional shape of the guide protrusion 32 at the other end of the cold storage rod 11 is rectangular. Figure 3 a and b in the figure are schematic diagrams of the structure of the cold storage rod 11 placed upright and inverted, respectively. Figure 3 As shown in a in FIG. 1 , the cross section of the guide protrusion 32 of the limiting protrusion 30 on the top of the cold storage rod 11 is circular. Figure 3 As shown in b, the cross section of the guide protrusion 32 of the limiting protrusion 30 at the bottom of the cold storage rod 11 is rectangular. In contrast, the multiple positioning holes 201 arranged on the limiting end plate 21 at the top of the cold storage rod array 10 are circular holes, and the multiple positioning holes 201 arranged on the limiting end plate 21 at the bottom of the cold storage rod array 10 are rectangular holes. In this way, on the basis of ensuring that the limiting end plates 21 on the upper and lower sides limit the multiple cold storage rods 11 in the cold storage rod array 10, the rotation of the cold storage rod 11 is avoided through the cooperation of the rectangular protrusion and the rectangular hole, further ensuring the reliability of the installation and the limiting effect of the limiting assembly 20 on the cold storage rod array 10.

[0044] It should be noted that when assembling the cold storage module 43, the cold storage rods 11 are sequentially placed on the lower limiting end plates 21, and after the arrangement is completed, the upper limiting end plates 21 are covered, and then the fixing components 22 are installed to complete the installation of the cold storage module 43. The installed cold storage module 43 forms a solid structure, which can be used as a standard module to participate in the grouping and installation of the cold storage module 40.

[0045] like Figure 1 and Figure 2 As shown, there are multiple fixing assemblies 22, and the multiple fixing assemblies 22 are arranged at intervals along the circumference of the cold storage rod array 10. The fixing assembly 22 includes a fixing member 221 and multiple fasteners 222. The fixing member 221 includes a fixing section and two transition sections arranged at both ends of the fixing section. The two transition sections are vertically arranged on the side of the fixing section facing the cold storage rod array 10 and respectively correspond to the limiting end plates 21 on both sides of the cold storage rod array 10. Any transition section is connected to the limiting end plate 21 on the corresponding side through at least two fasteners 222. This arrangement facilitates the positioning connection between the fixing member 221 and the limiting end plate 21, and is conducive to ensuring the reliability and stability of the connection between the fixing assembly 22 and the limiting end plate 21 on the corresponding side.

[0046] Preferably, the limiting end plate 21 includes a plate body 211 and a plurality of fixing columns 212, the plurality of fixing columns 212 are arranged at intervals around the circumference of the plate body 211 at the edge of the plate body 211 and correspond one-to-one to the plurality of transition sections on the same side, any one of the fixing columns 212 has at least two first fixing holes 202, any one of the transition sections has at least two corresponding second fixing holes 203, the fastener 222 is a fixing bolt, the fixing bolt passes through a corresponding set of first fixing holes 202 and second fixing holes 203 to connect the limiting end plate 21 and the transition section, and any one of the transition sections is threadedly connected to the limiting end plate 21 on the corresponding side by at least two fixing bolts. Such a configuration is conducive to ensuring the reliability and stability of the connection of the two limiting end plates 21 on both sides of the cold storage rod array 10, and is also conducive to ensuring the stability of the limiting assembly 20 limiting the cold storage rod array 10 as a whole. Specifically, the limiting end plate 21 in this embodiment includes four fixing columns 212, and any one of the fixing columns 212 has two first fixing holes 202. Correspondingly, four fixing components 22 are provided in this embodiment, and the transition section of the fixing part 221 of any one of the fixing components 22 has two second fixing holes 203, and the fixing component 22 includes four fixing bolts.

[0047] Among them, multiple cold storage rods 11 are parallel and spaced in pairs, that is, multiple cold storage rods 11 do not contact each other, which is convenient for sufficient diffusion and flow of the coolant and heat exchange. Multiple first flow gaps 101 are formed between the multiple cold storage rods 11. The plate body 211 is spaced from the end face of the cold storage rod array 10 on the corresponding side through the fixed column 212 to form a second flow gap connected to the multiple first flow gaps 101. The limiting end plate 21 has multiple flow holes 204 connected to the second flow gap. This arrangement provides a channel for the flow of coolant, which is beneficial to heat exchange. Among them, the gaps between adjacent cold storage rods 11 are equal, which is convenient for the coolant to flow and diffuse evenly without obstruction, which is beneficial to uniform and sufficient heat exchange. Among them, multiple flow holes 204 and multiple positioning holes 201 are alternately arranged.

[0048] It should be noted that the cold storage rod 11 includes a packaging structure and a phase change material filled inside the packaging structure, the plate material of the limit end plate 21 is stainless steel, aluminum or plastic, the material of the fixing component 22 is stainless steel or aluminum, the material of the packaging structure is stainless steel, aluminum or plastic with high thermal conductivity, the wall thickness of the packaging structure is ≤2mm, and the cross-sectional shape of the packaging structure is a regular polygon or a circle. The number of rows of the cold storage rod array 10 is ≥2, and the number of columns is ≥2. Preferably, the cold storage rod array 10 is a rectangular array, or the cold storage rod array 10 is a honeycomb array.

[0049] In the present embodiment, the materials of the limiting end plate 21, the fixing assembly 22 and the packaging structure are limited, which is beneficial to ensuring the overall thermal conductivity effect of the cold storage module 43. It is understandable that the materials of the limiting end plate 21, the fixing assembly 22 and the packaging structure can also be made of other high thermal conductivity materials, which are not listed here one by one. On the other hand, the limitation of the number of rows and columns of the cold storage rod array 10 and the cross-sectional shape of the cold storage rod 11 is beneficial to ensuring the cold storage capacity and heat exchange effect of the cold storage rod array 10, and is also beneficial to designing an adaptive cold storage module 43 with high space utilization and high cold storage capacity according to actual conditions. The cold storage rod array 10 in the present embodiment is a rectangular array of 7 rows and 8 columns, and the cross-section of the cold storage rod 11 is a square. It is understandable that the number of rows, columns, array form and cross-sectional shape of the cold storage rod array 10 can be adjusted according to actual conditions. Figure 5 In other embodiments shown, the cold storage rod array 10 can also be in other structural forms, such as Figure 5 As shown in c1, c2, and c3 in FIG. 1 , the cold storage rod array 10 is a rectangular array of 3 rows and 3 columns. Figure 5 As shown in d1, d2, and d3, the cold storage rod array 10 is a honeycomb array of 5 rows and 3 columns, and Figure 5 The cross-sections of the cold storage rods 11 used in c1 and d1 are both regular hexagons. Figure 5 The cross-sections of the cold storage rods 11 used in c2 and d2 are both regular octagons. Figure 5 The cross-sections of the cold storage rods 11 used in c3 and d3 are both circular. The arrangement of the honeycomb array can be understood as an equal triangle arrangement between three adjacent cold storage rods 11, not specifically referring to Figure 5 A honeycomb array formed by multiple regular hexagons shown in d2.

[0050] like Figures 1 to 4 As shown, multiple side walls of the cold storage rod 11 in the circumferential direction are concave, and / or, any two adjacent side walls in the circumferential direction of the cold storage rod 11 are rounded. In this embodiment, the cross-section of the packaging structure is preferably nearly square, and the rounded corners between any two adjacent side walls in the circumferential direction of the cold storage rod 11 are designed to increase the area of ​​the first flow gap 101 between any two adjacent cold storage rods 11 in the cold storage rod array 10, which is beneficial for the coolant to fully flush the surface of the cold storage rod 11 and increase the flushing surface area. The four side walls in the circumferential direction of the cold storage rod 11 are designed with concave arcs to reduce the gap between any two adjacent cold storage rods 11 in the cold storage rod array 10, which is beneficial for improving the volume utilization rate of the cold storage rod array 10.

[0051] like Figures 6 to 8As shown, another embodiment of the utility model provides a cold storage module 40, including a cold storage box 41, a header assembly 42 and the above-mentioned cold storage module 43, a heat exchange flow channel is formed between the cold storage box 41 and the cold storage module 43, and the header assembly 42 is arranged on the cold storage box 41 and communicates with the heat exchange flow channel. This arrangement facilitates the molding of the heat exchange flow channel inside the cold storage module 40 and the application of the cold storage module 40. In this embodiment, the material of the cold storage box 41 can be stainless steel, aluminum or an insert of metal and plastic parts to ensure its thermal conductivity.

[0052] like Figure 2 , Figure 7 and Figure 8 As shown, the interior of the cold storage box 41 has a plurality of positioning columns 411, and the limiting end plate 21 has a limiting blind hole 205 for penetrating the positioning columns 411. Any cold storage module 43 is arranged in the cold storage box 41 through the cooperation of at least one set of positioning columns 411 and limiting blind holes 205.

[0053] In this embodiment, the limiting end plate 21 also includes a plurality of limiting posts 213 (two limiting posts 213 in this embodiment), and the plurality of limiting posts 213 are arranged around the circumference of the plate body 211 at the edge of the plate body 211 and spaced from the fixing posts 212. Any limiting post 213 has a limiting blind hole 205 on the side away from the cold storage rod array 10. The cold storage box 41 includes a box body and a top cover. Any cold storage module 43 is arranged on the box body and / or the top cover of the cold storage box 41 through the cooperation of two groups of positioning posts 411 and the limiting blind holes 205. This arrangement facilitates the positioning and installation of multiple cold storage modules 43 in the cold storage box 41, and at the same time facilitates the leaving of a flow gap inside the cold storage box 41 for any two adjacent cold storage modules 43. Among them, the limiting blind hole 205 is a circular hole and the end is provided with a chamfer, which is convenient for guiding to achieve rapid positioning and installation.

[0054] Specifically, there are multiple cold storage modules 43, and the heat exchange flow channel is formed by at least the first flow gap 101 and the second flow gap of the multiple cold storage modules 43 surrounded by the cold storage box 41. The cold storage module 43 is vertically arranged in the cold storage box 41. The second flow gaps below the multiple cold storage modules 43 form a water inlet area, and the second flow gaps above the multiple cold storage modules 43 form a water outlet area. There are two header assemblies 42, and the two header assemblies 42 are respectively a water outlet pipe assembly and a water inlet pipe assembly. The water inlet pipe assembly and the water outlet pipe assembly are connected to the water inlet area and the water outlet area respectively. Figure 7As shown, the cold storage module 40 of this embodiment includes 15 cold storage modules 43, and the 15 cold storage modules 43 are arranged in a rectangular shape of 3 rows and 5 columns. In this embodiment, the heat exchange flow channel is formed by connecting the first flow gap 101 and the second flow gap of the multiple cold storage modules 43 surrounded by the cold storage box 41, the gap between the cold storage module 43 and the cold storage box 41, and the flow gap between the multiple cold storage modules 43. The multiple cold storage modules 43 in this embodiment are all placed vertically, and the multiple second flow gaps located above are located in the same plane. The multiple second flow gaps located below are located in the same plane. The water inlet pipe assembly and the water outlet pipe assembly are respectively arranged in the lower middle part and the upper middle part of the same side wall. This arrangement facilitates the formation of the water inlet area and the water outlet area and the arrangement of the water inlet pipe assembly and the water outlet pipe assembly. Further, the cooperation of the limit column 213 and the positioning column 411 is conducive to improving the grouping efficiency, grouping reliability and stability of the cold storage module 40 containing multiple cold storage modules 43.

[0055] like Fig. 9 and Fig.10 As shown, in other embodiments, the arrangement of the cold storage module 43, the arrangement position of the manifold assembly 42 and other related structures can be adjusted and designed according to actual conditions. Fig. 9 As shown in e1 in FIG. 1 , the cold storage module 43 is arranged horizontally and parallel to the length direction of the cold storage box 41, or, as shown in FIG. Fig. 9 As shown in Figure e2, the cold storage module 43 is arranged horizontally and parallel to the width direction of the cold storage box 41. Fig.10 As shown in f1 in FIG. 1 , the water inlet pipe assembly is arranged in the lower area of ​​one of the side walls of the cold storage box 41, and the water outlet pipe assembly is arranged in the upper area of ​​the same side wall, and the water inlet pipe assembly and the water outlet pipe assembly are arranged diagonally, or, as shown in FIG. Fig.10 As shown in f2, the water inlet pipe assembly is arranged in the lower area of ​​one of the side walls of the cold storage box 41, and the water outlet pipe assembly is arranged in the upper area on the opposite side wall, and the water inlet pipe assembly and the water outlet pipe assembly are arranged diagonally.

[0056] Furthermore, the manifold assembly 42 includes a water pipe 421, a sensor 422, a manifold 423 and a diverter pipe 424. The water pipe 421 is connected to the manifold 423. The water pipe 421, the manifold 423 and the sensor 422 are arranged outside the cold storage box 41. The diverter pipe 424 is connected to the manifold 423 and is passed through the cold storage box 41. The diverter pipe 424 has multiple diverter holes. The sensor 422 is arranged on the manifold 423 to detect one or more of liquid pressure, temperature and flow rate.

[0057] In this embodiment, a plurality of shunt holes are provided on the shunt pipe 424 to facilitate the shunt of the coolant at different positions, which is conducive to ensuring sufficient and uniform heat exchange of the cold storage module 40. The sensor 422 can be a sensor 422 that collects one or more of temperature, pressure, and flow, and the sensor 422 can be integrated on the water inlet pipe assembly and / or the water outlet pipe assembly, or partially or completely installed on the pipeline connected to the water inlet pipe (the water pipe 421 of the water inlet pipe assembly) and / or the water outlet pipe (the water pipe 421 of the water outlet pipe assembly).

[0058] Preferably, the outer surface of the cold storage box 41 is covered with an insulation layer, and the insulation layer material can be selected from aerogel pads, rock wool or EPDM, and the thickness of the insulation layer is ≥5mm. This arrangement is conducive to reducing the cold leakage of the cold storage module 40. Among them, the insulation layer is preferably bonded to the surface of the cold storage box 41. In other embodiments, a local layering structure can be added to the outside of the insulation layer to ensure reliable contact between the insulation layer and the cold storage box 41.

[0059] like Fig.11 As shown, another embodiment of the utility model provides an energy storage system 50, including an energy storage box 51, a battery pack 52 and a plurality of the above-mentioned cold storage modules 40, the plurality of cold storage modules 40 are interconnected, the battery pack 52 is arranged in the energy storage box 51, the cold storage module 40 is pullable in the energy storage box 51, and / or the cold storage module 40 is wall-mounted in the energy storage box 51.

[0060] When the cold storage module 40 is placed in the energy storage box 51, the shape and size of the cold storage module 40 can be designed according to the specific placement position. Fig.11 As shown, some cold storage modules 40 are in the form of battery packs, which are placed in the energy storage box 51 in a pull-out manner, and their sizes are adapted to the size of the battery pack or designed to be similar to the size of the battery pack. Another part of the cold storage modules 40 are wall-mounted, located at the position of the original insulation layer of the energy storage box 51. It can be understood that the configuration of multiple cold storage modules 40 can be selected from one or a combination of pull-out and wall-mounted, and multiple cold storage modules 40 are preferably connected in parallel for system connection. Specifically, as Fig.11 As shown, the energy storage system 50 also includes a liquid cooling unit 53 and an electrical module 54 .

[0061] Preferably, the cold storage module 40 stores cold when electricity prices are low, and releases cold when electricity prices are high. When releasing cold, the cold storage module 40 can be used as a cold source to dissipate heat for the battery pack 52 or the power module, thereby achieving peak shaving and valley filling of the thermal management system, reducing the power consumption of the liquid cooling unit 53 when electricity prices are high, and generating economic benefits.

[0062] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0063] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the utility model. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be considered as a part of the specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, and therefore, once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0064] In the description of the present utility model, it needs to be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present utility model; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0065] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" may include both "above" and "below". The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0066] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the utility model.

[0067] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A cold storage module, characterized in that: The invention comprises a cold storage rod array (10) and a limiting assembly (20) for fixing the cold storage rod array (10), wherein the cold storage rod array (10) comprises a plurality of cold storage rods (11), and limiting protrusions (30) are arranged at both ends of any one of the cold storage rods (11); the limiting assembly (20) comprises a fixing assembly (22) and limiting end plates (21) arranged on opposite sides of the cold storage rod array (10); the limiting end plates (21) are provided with a plurality of positioning holes (201) which are matched and limited in a one-to-one manner with the plurality of limiting protrusions (30) located on the same side of the cold storage rod array (10); the limiting protrusions (30) are inserted into the corresponding positioning holes (201) of the limiting end plates (21) on the corresponding side; and the limiting end plates (21) on both sides of the cold storage rod array (10) are connected via the fixing assembly (22).

2. The cold storage module according to claim 1, characterized in that: The limiting protrusion (30) comprises a limiting boss (31) arranged at the end of the cold storage rod (11) and a guide protrusion (32) arranged on the limiting boss (31), wherein the cross-sectional area of ​​the guide protrusion (32) gradually decreases in the extension direction from the center of the cold storage rod (11) to both ends.

3. The cold storage module according to claim 2, characterized in that: The shape of the positioning hole (201) on the limiting end plate (21) matches the shape of the guide protrusion (32) at the end of the cold storage rod (11) on the corresponding side, and the shapes of the guide protrusions (32) at both ends of the cold storage rod (11) are different.

4. The cold storage module according to claim 3, characterized in that: The cross-sectional shape of the guide protrusion (32) at one end of the cold storage rod (11) is circular, and the cross-sectional shape of the guide protrusion (32) at the other end of the cold storage rod (11) is rectangular.

5. The cold storage module according to claim 1, characterized in that: There are a plurality of fixing assemblies (22), and the plurality of fixing assemblies (22) are arranged at intervals along the circumference of the cold storage rod array (10). The fixing assembly (22) comprises a fixing member (221) and a plurality of fasteners (222). The fixing member (221) comprises a fixing section and two transition sections arranged at both ends of the fixing section. The two transition sections are vertically arranged on a side of the fixing section facing the cold storage rod array (10) and respectively correspond to the limiting end plates (21) on both sides of the cold storage rod array (10). Any one of the transition sections is connected to the limiting end plate (21) on the corresponding side via at least two of the fasteners (222).

6. The cold storage module according to claim 1, characterized in that: The plurality of cold storage rods (11) are parallel and spaced apart in pairs, and a plurality of first flow gaps (101) are formed between the plurality of cold storage rods (11); the limiting end plate (21) comprises a plate body (211) and a fixing column (212); the plate body (211) is spaced apart from the end face of the cold storage rod array (10) on the corresponding side through the fixing column (212) to form a second flow gap connected to the plurality of first flow gaps (101); the limiting end plate (21) has a plurality of flow holes (204) connected to the second flow gaps.

7. The cold storage module according to claim 1, characterized in that: A plurality of side walls of the cold storage rod (11) in the circumferential direction are concave, and / or a rounded corner is formed between any two adjacent side walls of the cold storage rod (11) in the circumferential direction.

8. A cold storage module, characterized in that: It comprises a cold storage box (41), a collecting pipe assembly (42) and a cold storage module according to any one of claims 1 to 7, a heat exchange flow channel is formed between the cold storage box (41) and the cold storage module, and the collecting pipe assembly (42) is arranged on the cold storage box (41) and is connected to the heat exchange flow channel.

9. The cold storage module according to claim 8, characterized in that: The cold storage box (41) has a plurality of positioning columns (411) inside, the limiting end plate (21) has a limiting blind hole (205) for penetrating the positioning columns (411), and any one of the cold storage modules is arranged in the cold storage box (41) through the cooperation of at least one group of the positioning columns (411) and the limiting blind hole (205).

10. The cold storage module according to claim 8, characterized in that: The cold storage module is the cold storage module according to claim 6, and there are multiple cold storage modules. The heat exchange flow channel is formed by at least connecting the first flow gap (101) and the second flow gap of the multiple cold storage modules surrounded by the cold storage box (41). The cold storage module is vertically arranged in the cold storage box (41), and the second flow gaps below the multiple cold storage modules form a water inlet area, and the second flow gaps above the multiple cold storage modules form a water outlet area. There are two collecting pipe assemblies (42), and the two collecting pipe assemblies (42) are respectively a water outlet pipe assembly and a water inlet pipe assembly. The water inlet pipe assembly and the water outlet pipe assembly are respectively connected to the water inlet area and the water outlet area.

11. The cold storage module according to claim 8, characterized in that: The cold storage module is horizontally arranged and parallel to the length direction of the cold storage box (41), or the cold storage module is horizontally arranged and parallel to the width direction of the cold storage box (41); there are two collecting pipe assemblies (42), and the two collecting pipe assemblies (42) are respectively a water outlet pipe assembly and a water inlet pipe assembly, the water inlet pipe assembly is arranged in the lower area of ​​one of the side walls of the cold storage box (41), and the water outlet pipe assembly is arranged in the upper area of ​​the same side wall, or the water outlet pipe assembly is arranged in the upper area on the opposite side wall.

12. The cold storage module according to claim 8, characterized in that: The manifold assembly (42) comprises a water pipe (421), a sensor (422), a manifold (423) and a shunt pipe (424); the water pipe (421) is in communication with the manifold (423); the water pipe (421), the manifold (423) and the sensor (422) are arranged outside the cold storage box (41); the shunt pipe (424) is in communication with the manifold (423) and is passed through the cold storage box (41); the shunt pipe (424) has a plurality of shunt holes; the sensor (422) is arranged on the manifold (423) to detect one or more of liquid pressure, temperature and flow rate.

13. The cold storage module according to claim 8, characterized in that: The outer surface of the cold storage box (41) is covered with a heat-insulating layer, the material of the heat-insulating layer can be selected from aerogel pads, rock wool or EPDM, and the thickness of the heat-insulating layer is ≥5 mm.

14. An energy storage system, characterized in that: It comprises an energy storage box (51), a battery pack (52) and a plurality of cold storage modules according to any one of claims 8 to 13, wherein the plurality of cold storage modules are interconnected, the battery pack (52) is arranged in the energy storage box (51), the cold storage module can be drawn out in the energy storage box (51), and / or the cold storage module is wall-mounted in the energy storage box (51).

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