Energy storage unit, and heating, ventilation and air conditioning system

Abstract

Provided in the embodiments of the present application are an energy storage unit, and a heating, ventilation and air conditioning system, relating to the technical field of heating, ventilation and air conditioning systems. The energy storage unit is externally communicated with an energy unit and a first utilization unit; the energy storage unit comprises an inner tank, a thermal insulation layer and a housing; the inner tank is provided with a heat exchange module and an energy storage material; the heat exchange module is externally communicated with the energy unit and the first utilization unit; the energy storage material is thermally conductively connected to the heat exchange module; the thermal insulation layer is attached to the outer surface of the inner tank; the housing covers the outer side of the thermal insulation layer.

Description

Energy storage unit and heating and ventilation system

[0001] The present application claims priority to Chinese Patent Application No. 2024224112031, filed on September 30, 2024, entitled "Energy Storage Unit and Heating and Ventilation System", and the entire contents of the application are incorporated herein by reference. The present application also claims priority to Chinese Patent Application No. 2024225108940, filed on October 16, 2024, entitled "Energy Storage Unit and Heating and Ventilation System", and the entire contents of the application are incorporated herein by reference. The present application also claims priority to Chinese Patent Application No. 2024114484297, filed on October 16, 2024, entitled "Energy Storage Unit and Heating and Ventilation System", and the entire contents of the application are incorporated herein by reference. TECHNICAL FIELD

[0002] The present application relates to the technical field of heating and ventilation systems, and in particular to an energy storage unit and a heating and ventilation system. BACKGROUND

[0003] The phase change energy storage device has the advantages of small volume, large energy storage capacity, and no dead water. When it is connected with a heat pump to form a household hot water heating device, it has great application prospects. However, in the related art, the heat preservation effect of the phase change energy storage device is not ideal, and therefore there is a problem of energy loss. SUMMARY

[0004] The present application provides an energy storage unit and a heating and ventilation system, which can reduce energy loss by providing a heat preservation layer.

[0005] In a first aspect, the present application provides an energy storage unit, which is connected to an energy source unit and a first utilization unit, and includes:

[0006] The inner container has a heat exchange module and an energy storage material. The heat exchange module is connected to the energy source unit and the first utilization unit. The energy storage material is in thermal contact with the heat exchange module.

[0007] The heat preservation layer is attached to the outer surface of the inner container.

[0008] The outer shell covers the outside of the heat preservation layer.

[0009] Based on the energy storage unit provided by the present application, the heat preservation layer is provided between the inner container and the outer shell, which can reduce the loss of energy in the energy storage material and the heat exchange module in the inner container.

[0010] In some embodiments, the heat preservation layer includes a first sub-heat preservation layer and a second sub-heat preservation layer. The first sub-heat preservation layer is closer to the inner container than the second sub-heat preservation layer.

[0011] In some embodiments, the hardness of the first sub-heat preservation layer is less than the hardness of the second sub-heat preservation layer.

[0012] In some embodiments, the first sub-insulation layer has a higher insulation coefficient than the second sub-insulation layer.

[0013] In some embodiments, the first sub-insulation layer comprises at least one of a sponge layer, a rubber layer.

[0014] In some embodiments, the second sub-insulation layer comprises at least one of a vacuum insulation panel, a polyurethane panel.

[0015] In some embodiments, the insulation layer further comprises:

[0016] A third sub-insulation layer, the third sub-insulation layer is disposed between the second sub-insulation layer and the outer shell.

[0017] In some embodiments, the third sub-insulation layer has a lower hardness than the second sub-insulation layer.

[0018] In some embodiments, the inner container comprises:

[0019] An inner container shell, the insulation layer covers an outer surface of the inner container shell.

[0020] In some embodiments, the heat exchange module is installed in the inner container shell.

[0021] In some embodiments, the energy storage material is filled in the inner container shell and submerges at least part of the heat exchange module.

[0022] In some embodiments, the inner container shell comprises a first end shell, a second end shell, and a side shell, the side shell encloses to form an inner container space, the first end shell covers an upper side of the inner container space along a gravity direction.

[0023] In some embodiments, the second end shell covers a lower side of the inner container space along the gravity direction.

[0024] In some embodiments, the energy storage material is filled in the inner container space and has a spacing with the first end shell.

[0025] In some embodiments, the insulation layer comprises a first insulation layer, a second insulation layer, and a third insulation layer, the first insulation layer is attached to the first end shell, the second insulation layer is attached to the second end shell, and the third insulation layer is attached to an outer surface of the side shell.

[0026] In some embodiments, a lower surface of the second end shell is provided with a first support portion, the first support portion is supported on a bottom wall of the outer shell.

[0027] In some embodiments, the first support portion comprises:

[0028] A first plate portion, which is attached to an outer surface of the second end shell.

[0029] In some embodiments, the first support portion includes a first support leg, the first support leg is provided in two groups, the two groups of first support legs are respectively arranged at edges of the first plate portion in the first direction and are supported on the bottom wall of the shell.

[0030] In some embodiments, the first plate portion has a second plate portion at an edge in the second direction, the second plate portion, the first support leg and the first plate portion form a first limiting space, and a portion of the second thermal insulation layer is located in the first limiting space.

[0031] The first direction and the second direction are perpendicular to each other.

[0032] In some embodiments, the second thermal insulation layer includes a first sub-thermal insulation layer and a second sub-thermal insulation layer, the first sub-thermal insulation layer is at least partially located in the first limiting space, and the second sub-thermal insulation layer is located outside the first limiting space and is attached to the first sub-thermal insulation layer.

[0033] In some embodiments, the lower surface of the second sub-thermal insulation layer has a gap with the bottom wall of the shell.

[0034] In some embodiments, the outer surface of the inner container has a raised portion, and the raised portion is embedded in the first sub-thermal insulation layer.

[0035] In some embodiments, the raised portion includes a plate body portion and a standing edge formed by bending the plate body portion.

[0036] In some embodiments, the outer surface of the first end shell is provided with a second support portion, the second support portion forms a second limiting space, and the first thermal insulation layer is located in the second limiting space.

[0037] In some embodiments, the second support portion includes:

[0038] A first connecting portion attached to the outer surface of the first end shell.

[0039] In some embodiments, the second support portion includes an intermediate portion connected to the first connecting portion and extending in the opposite direction of the gravity direction, the intermediate portion, the first connecting portion and the first end shell form a second limiting space.

[0040] In some embodiments, the second support portion further includes:

[0041] A second connecting portion connected to a side of the intermediate portion away from the first connecting portion, the second connecting portion is parallel to the first connecting portion and forms a third limiting space with the intermediate portion.

[0042] In some embodiments, a third thermal insulation layer is arranged in the third limiting space, and the third thermal insulation layer is attached to the intermediate portion and the second connecting portion.

[0043] In some embodiments, the second support portion further includes:

[0044] a third connecting portion connected to the second connecting portion at a side away from the intermediate portion, the third connecting portion being parallel to the intermediate portion.

[0045] In some embodiments, the inner surface of the outer shell has a hooking portion, and the third connecting portion is clamped with the hooking portion.

[0046] In some embodiments, the outer shell comprises a plurality of outer side shells, an outer top cover, and an outer bottom plate, the outer top cover being arranged at an upper side of the inner container along a gravity direction and connected to one side of the outer side shells, and the outer bottom plate being arranged at a lower side of the inner container along the gravity direction and connected to an opposite side of the outer side shells.

[0047] In some embodiments, the inner surface of the outer side shell has a hooking portion.

[0048] In some embodiments, the outer side shell comprises an outer side shell body and a first bending portion bent from the outer side shell body, and the first bending portion of one of the two adjacent outer side shells is connected to the outer side shell body of the other of the two outer side shells by a fastener.

[0049] In some embodiments, the second heat insulation layer forms an avoiding area corresponding to the first bending portion, and the avoiding area extends along the third direction.

[0050] In some embodiments, the first bending portion of at least one of the two adjacent outer side shells is bent to form a second bending portion away from the outer side shell body, the second bending portion extends towards the avoiding area and is arranged opposite to the fastener.

[0051] In some embodiments, the outer bottom plate comprises an outer bottom plate body and a standing plate bent from the outer bottom plate body, the standing plate is attached to the outer side shell, and along the third direction, the edge of the standing plate does not exceed the edge of the outer side shell.

[0052] In some embodiments, the outer surface of the outer bottom plate has an outer supporting leg.

[0053] In some embodiments, at least one of the plurality of outer side shells and the outer top cover is provided with a through-pipe hole configured to allow a pipe line in communication with the heat exchange module to extend out.

[0054] In some embodiments, the heat exchange module comprises:

[0055] a plurality of sub-heat exchange modules, the plurality of sub-heat exchange modules being arranged in parallel and spaced apart along a first direction, a top of the sub-heat exchange module and a bottom of the sub-heat exchange module being arranged opposite along a third direction, each sub-heat exchange module having a plurality of heat exchange flow paths, each heat exchange flow path extending in a meandering manner along the third direction to form a plurality of bending loops, the plurality of bending loops being reciprocally bent along a second direction, wherein the first direction, the second direction, and the third direction are arranged perpendicular to each other.

[0056] In some embodiments, the heat exchange module comprises a pipe structure, the pipe structure comprises a header pipe and a plurality of delivery pipes, the header pipe is arranged on top of the plurality of sub heat exchange modules and penetrates the inner container, one end of the delivery pipe is in communication with the header pipe, and the other end of the delivery pipe is in communication with the corresponding heat exchange flow path.

[0057] In some embodiments, each sub heat exchange module is a tube fin heat exchanger, each sub heat exchange module has a plurality of tube fins arranged in a row along the second direction, and each heat exchange flow path passes through the plurality of tube fins along the second direction.

[0058] In some embodiments, the inner container further has a mounting structure connecting the plurality of sub heat exchange modules arranged in the first direction, the mounting structure comprises:

[0059] a first connecting member arranged on the bottom of the sub heat exchange module, the first connecting member comprising a first plate body and a plurality of first fixing portions arranged on the first plate body, the plurality of first fixing portions being arranged in the first direction, and the first fixing portion being connected to the corresponding sub heat exchange module; and

[0060] In some embodiments, the mounting structure comprises a second connecting member arranged on the top of the sub heat exchange module, the second connecting member comprising a second plate body and a plurality of second fixing portions arranged on the second plate body, the plurality of second fixing portions being arranged in the first direction, and the second fixing portion being connected to the corresponding sub heat exchange module.

[0061] In some embodiments, the inner container further has a protection structure connecting the plurality of sub heat exchange modules arranged in the first direction.

[0062] In some embodiments, the protection structure comprises:

[0063] a third connecting member arranged on the bottom of the sub heat exchange module, the third connecting member comprising a third plate body and a plurality of third fixing portions arranged on the third plate body, the plurality of third fixing portions being arranged in the first direction, and the third fixing portion being connected to the corresponding sub heat exchange module, and the third plate body being protruded in the second direction to the heat exchange flow path.

[0064] In some embodiments, the inner container further has at least two pipe fixing structures arranged on the top of the plurality of sub heat exchange modules and arranged in the first direction on opposite sides of the heat exchange module, the header pipe extends in the first direction, and both ends of the header pipe are connected to the two pipe fixing structures.

[0065] In some embodiments, the pipe fixing structure comprises a mounting plate and a plurality of mounting portions connected to the mounting plate, the plurality of mounting portions are arranged in the second direction and are protruded in the first direction to the heat exchange module.

[0066] In some embodiments, the inner container comprises two side shells spaced apart along the first direction, and each of the two side shells has a mounting fitting on a side opposite to the other side shell, and the mounting fitting is connected with a corresponding mounting part to form a gap between the heat exchange module and the side shell.

[0067] In some embodiments, the plurality of heat exchange flow paths of the sub heat exchange module comprises at least one energy charging flow path and at least one energy discharging flow path, the energy charging flow path is located on the same energy charging loop as the energy unit, and the energy discharging flow path is located on the same energy discharging loop as the first utilization unit.

[0068] In some embodiments, the plurality of heat exchange flow paths of the sub heat exchange module comprises a plurality of energy charging flow paths and a plurality of energy discharging flow paths, and the energy charging flow paths and the energy discharging flow paths are alternately and spaced apart along the first direction.

[0069] In some embodiments, the energy charging flow path and the energy discharging flow path are both pipes.

[0070] In some embodiments, at least one of the energy charging flow path and the energy discharging flow path comprises a copper pipe, a copper alloy pipe or a stainless steel pipe.

[0071] In some embodiments, the energy charging flow path comprises an aluminum pipe, and the energy discharging flow path comprises a stainless steel pipe.

[0072] In some embodiments, the header pipe comprises an energy charging inlet pipe, an energy charging outlet pipe, an energy discharging inlet pipe and an energy discharging outlet pipe, the energy charging inlet pipe, the energy charging outlet pipe, the energy discharging inlet pipe and the energy discharging outlet pipe are spaced apart along the second direction and correspondingly connected with a conveying pipe, and the other end of the conveying pipe is in communication with a corresponding energy charging flow path and energy discharging flow path.

[0073] In some embodiments, the conveying pipe comprises an energy charging branch inlet pipe, an energy charging branch outlet pipe, an energy discharging branch inlet pipe and an energy discharging branch outlet pipe, and the plurality of energy charging branch inlet pipes, the plurality of energy charging branch outlet pipes, the plurality of energy discharging branch inlet pipes and the plurality of energy discharging branch outlet pipes are spaced apart along the first direction.

[0074] In some embodiments, the energy charging branch outlet pipe comprises a first pipe segment and a second pipe segment, and along the second direction, one of the first pipe segment and the second pipe segment is located on the first vertical plane, and the other is located on the second vertical plane, and the energy discharging branch inlet pipe is located on the first vertical plane or the second vertical plane.

[0075] In some embodiments, the energy discharging branch inlet pipe comprises a first pipe segment and a second pipe segment, and along the second direction, one of the first pipe segment and the second pipe segment is located on the first vertical plane, and the other is located on the second vertical plane, and the energy charging branch outlet pipe is located on the first vertical plane or the second vertical plane.

[0076] In some embodiments, the first vertical plane and the second vertical plane are not coplanar.

[0077] In some embodiments, the energy charging outlet pipe and the energy discharging inlet pipe are closer to the inner container than the energy charging inlet pipe and the energy discharging outlet pipe in the second direction.

[0078] In some embodiments, the inner container further comprises at least two temperature sensing modules, each of which comprises a probe, one of the probes of the at least two temperature sensing modules extends into the bottom end of the energy storage material in the third direction, and the other of the probes of the at least two temperature sensing modules extends into the top end of the energy storage material in the third direction.

[0079] In some embodiments, the probes of the at least two temperature sensing modules are located between two adjacent sub-heat exchange modules.

[0080] In some embodiments, the temperature sensing module further comprises:

[0081] a support plate fixed relative to the heat exchange module, and the support plate has an assembly hole.

[0082] In some embodiments, the temperature sensing module further comprises a blind pipe plugged into the assembly hole and configured to extend into the energy storage material, and an inner wall surface of the blind pipe is provided with a positioning structure.

[0083] In some embodiments, the probe cooperates with the positioning structure to define a preset depth of insertion of the probe into the energy storage material.

[0084] In some embodiments, the positioning structure comprises a positioning protrusion provided on the inner wall surface of the blind pipe, and the probe is clamped or abuts against the positioning protrusion.

[0085] In some embodiments, the temperature sensing module further comprises a sensor wire body partially plugged into the blind pipe and connected to the probe.

[0086] In some embodiments, an outer wall surface of the sensor wire body is provided with a position indication part, and when the probe cooperates with the positioning structure, the position indication part is located at a pipe opening of the blind pipe.

[0087] In some embodiments, the temperature sensing module further comprises a connector provided at the pipe opening of the blind pipe, the sensor wire body is threaded through the connector and plugged into the blind pipe, and the connector is configured to lock or release the sensor wire body.

[0088] In a second aspect, the embodiments of the present application provide a heating and ventilation system, comprising:

[0089] an energy unit;

[0090] a first utilization unit; and

[0091] In any of the optional modes of the first aspect, the energy storage unit is in communication with the energy unit via a charging circuit, and the energy storage unit is in communication with the first utilization unit via a discharging circuit, and the charging circuit and the discharging circuit are staggered.

[0092] In some of the embodiments, the energy unit comprises:

[0093] In some of the embodiments, the energy unit comprises a main heat source unit, and the main heat source unit is in communication with the energy storage unit via the charging circuit, and the main heat source unit comprises one of a solar heat collection module, a water source heat exchange module, and an air source heat exchange module.

[0094] In some of the embodiments, the energy unit comprises a main heat source unit, and the main heat source unit is in communication with the energy storage unit via the charging circuit, and the main heat source unit comprises one of a solar heat collection module, a water source heat exchange module, and an air source heat exchange module.

[0095] In some of the embodiments, the heating and cooling system further comprises a second utilization unit, and the energy unit is in communication with the second utilization unit via a heat transfer pipeline, and the heat transfer pipeline is in parallel with the charging circuit.

[0096] In some of the embodiments, the heating and cooling system has:

[0097] In the first working mode, the energy unit provides heat to the energy storage material, and the first utilization unit absorbs the heat of the energy storage material.

[0098] In some of the embodiments, the heating and cooling system has a second working mode, and in the second working mode, the energy unit provides heat to the second utilization unit. BRIEF DESCRIPTION OF DRAWINGS

[0099] FIG. 1 is a structural schematic diagram of a heating and cooling system according to an embodiment of the present application;

[0100] FIG. 2 is a structural schematic diagram of an energy storage unit according to an embodiment of the present application;

[0101] FIG. 3 is a structural schematic diagram of a cross section at H-H in FIG. 2;

[0102] FIG. 4 is an exploded view of the energy storage unit according to an embodiment of the present application;

[0103] FIG. 5 is a structural schematic diagram of an inner container according to an embodiment of the present application;

[0104] FIG. 6 is an exploded structural schematic diagram of the inner container according to an embodiment of the present application;

[0105] FIG. 7a is an enlarged view of B in FIG. 3 according to an embodiment of the present application;

[0106] FIG. 7b is an enlarged view of B in FIG. 3 according to another embodiment of the present application;

[0107] FIG. 8 is an enlarged view of C in FIG. 2;

[0108] Fig. 9 is an enlarged view of A in Fig. 2;

[0109] Fig. 10 is an enlarged view of F in Fig. 4;

[0110] Fig. 11 is an enlarged view of D and E in Fig. 4;

[0111] Fig. 12 is a structural schematic diagram of a heat exchange module according to an embodiment of the present application;

[0112] Fig. 13 is a structural schematic diagram of the heat exchange module in Fig. 12 from another perspective;

[0113] Fig. 14 is a structural schematic diagram of a plurality of sub heat exchange modules, a first connecting member and a second connecting member according to an embodiment of the present application;

[0114] Fig. 15 is a structural schematic diagram of a plurality of sub heat exchange modules connected together through a mounting structure according to an embodiment of the present application;

[0115] Fig. 16 is a structural schematic diagram of a plurality of sub heat exchange modules, a protective structure and a first connecting member according to an embodiment of the present application;

[0116] Fig. 17 is a structural schematic diagram of a pipeline fixing structure according to an embodiment of the present application;

[0117] Fig. 18 is a structural schematic diagram of a pipeline structure according to an embodiment of the present application;

[0118] Fig. 19 is a structural schematic diagram of a heat exchange flow path distribution according to an embodiment of the present application;

[0119] Fig. 20 is a structural schematic diagram of a delivery pipe distribution according to an embodiment of the present application;

[0120] Fig. 21 is an enlarged view of G in Fig. 20;

[0121] Fig. 22 is a structural schematic diagram of a temperature sensing module provided inside an energy storage unit according to an embodiment of the present application;

[0122] Fig. 23 is a structural schematic diagram of a temperature sensing module according to an embodiment of the present application;

[0123] Fig. 24 is a sectional structural schematic diagram of P-P in Fig. 23;

[0124] Fig. 25 is an enlarged structural schematic diagram of J in Fig. 24;

[0125] Fig. 26 is an enlarged structural schematic diagram of K in Fig. 24.

[0126] 1000, energy storage unit; 100, inner container; 100a, inner container space; 110, first end shell; 111, second support part; 111a, second limiting space; 111b, third limiting space; 1111, first connecting part; 1112, intermediate part; 1113, second connecting part; 1114, third connecting part; 120, second end shell; 121, first support part; 121a, first limiting space; 1211, first plate part; 1212, first support leg; 1213, second plate part; 130, side shell; 131, mounting matching part; 140, raised part; 141, plate body part; 142, vertical edge; 200, heat exchange module; 210, sub heat exchange module; 210a, heat exchange flow path; 211a, energy charging flow path; 212a, energy discharging flow path; 220, pipeline structure; 221, manifold; 2211, energy charging inlet pipe; 2212, energy charging outlet pipe; 2213, energy discharging inlet pipe; 2214, energy discharging outlet pipe; 222, conveying pipe; 2221, energy charging branch inlet pipe; 2222, energy charging branch outlet pipe; 2223, energy discharging branch inlet pipe; 22231, first pipe segment; 22232, second pipe segment; 2224, energy discharging branch outlet pipe; 223, tee joint pipe; 300, thermal insulation layer; 300a, avoiding area; 310, first sub thermal insulation layer; 320, second sub thermal insulation layer; 330, first thermal insulation layer; 340, second thermal insulation layer; 350, third thermal insulation layer; 360, third sub thermal insulation layer; 400, outer shell; 400a, pipe passing hole; 410, hanging part; 411, outer side shell; 4111, outer side shell body; 4112, first bending part; 4113, second bending part; 412, outer top cover; 413, outer bottom disc; 4131, outer bottom disc plate body; 4132, vertical plate; 4133, outer support leg; 500, mounting structure; 510, first connecting piece; 511, first plate body; 512, first fixing part; 520, second connecting piece; 521, second plate body; 522, second fixing part; 600, protection structure; 610, third connecting piece; 611, third plate body; 611a, avoiding hole; 612, third fixing part; 700, pipeline fixing structure; 710, mounting plate; 720, mounting part; 800, temperature sensing module; 810, probe; 820, support plate; 830, blind pipe; 831, positioning protrusion; 840, sensor wire body; 841, in-place indicating part; 850, joint piece; 851, base; 851a, first through hole; 852, fastening head; 852a, second through hole; 860, sealing piece; 900, energy storage material; 2000, energy unit; 2000a, energy charging circuit; 3000, first utilization unit; 3000a, energy discharging circuit; 4000, second utilization unit; 4000a, heat transfer pipeline; XX, first direction; YY, second direction; ZZ, third direction; M, first vertical plane; N, second vertical plane.

[0127] The object, technical solutions, and advantages of the present application will be further described with reference to the embodiments and the accompanying drawings. DETAILED DESCRIPTION

[0128] In order to make the object, technical solutions and advantages of the present application clearer, the following will further describe the embodiments of the present application with reference to the accompanying drawings.

[0129] The following description of the application refers to the accompanying drawings, wherein like elements are referred to by like numbers. The detailed description of illustrative embodiments described herein does not represent all of the only embodiments consistent with the present application. Instead, they are merely examples of apparatuses and methods consistent with some aspects of the present application as detailed in the appended claims.

[0130] In the description of the present application, it should be understood that the terms "first", "second" and the like are merely intended to distinguish similar objects from each other, and are not intended to indicate or imply relative importance. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances. In addition, in the description of the present application, unless otherwise specified, "a plurality of" means two or more. The association relationship between the associated objects is described, which means that there can be three kinds of relationships, for example, A and / or B, which can represent three cases: A exists alone, A and B exist together, and B exists alone. The character " / " generally represents an "or" relationship between the associated objects before and after it.

[0131] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs. The terms used in the specification of the present application are only for the purpose of describing specific embodiments and are not intended to limit the present application. The term "and / or" used herein includes any and all combinations of one or more associated listed items.

[0132] In the phase change energy storage unit, the heat source unit exchanges heat with the energy storage material, the energy storage material stores heat, and then the heat is transferred to the utilization unit through heat exchange. However, in this process, if no insulation is done, or the insulation material fails to completely cover the inner container, the energy storage material will lose some of the stored heat, and at the same time, the heat of the heat exchange module will be lost.

[0133] Based on this, referring to FIG. 1, the application provides an energy storage unit 1000 capable of being connected to an external energy unit 2000 and a first utilization unit 3000, configured to improve the energy loss of the energy storage material 900 and the heat exchange module 200. The energy unit 2000 is mainly a heat source module, such as an electric heating module, a solar heating module, a water source heat exchange module, and an air source heat exchange module, etc., and the first utilization unit 3000 can be a water unit or other units that need to use heat, such as a heating unit.

[0134] Specifically, referring to FIGS. 2-4, the energy storage unit 1000 in the application includes an inner container 100, an insulation layer 300, and an outer shell 400.

[0135] The inner container 100 has a heat exchange module 200 and an energy storage material 900 inside, and the inner container 100 is configured to protect the energy storage material 900 and the heat exchange module 200. The inner container 100 can be a cubic structure, or other shapes such as a cylindrical structure, and in this application, the inner container 100 is exemplarily described as a cubic structure. The heat exchange module 200 is connected to the energy unit 2000 and the first utilization unit 3000, and the energy storage material 900 is in thermal contact with the heat exchange module 200, that is, the heat exchange between the energy unit 2000 and the energy storage material 900, and the heat exchange between the energy storage material 900 and the first utilization unit 3000 are all carried out inside the inner container 100.

[0136] The insulation layer 300 is attached to the outer surface of the inner container 100, which can reduce the amount of energy flowing out of the inner container 100, improve the storage efficiency and use time of thermal energy, and thus improve the energy loss problem of the energy storage unit 1000.

[0137] The outer shell 400 covers the outside of the insulation layer, and the outer shell 400 serves as the appearance component of the entire energy storage unit 1000, which can protect the insulation layer and the inner container 100 inside the outer shell 400. Based on the cubic shape of the inner container 100, the entire outer shell 400 can also be cubic in this application, and at the same time, the outer shell 400 also provides necessary mechanical support, enhancing the overall strength and durability of the energy storage unit 1000.

[0138] Further, referring to FIG. 3, in order to improve the insulation effect of the energy storage unit 1000, the insulation layer includes a first sub-insulation layer 310 and a second sub-insulation layer 320, and the first sub-insulation layer 310 is closer to the inner container 100 than the second sub-insulation layer 320.

[0139] Since the energy storage material 900 and the heat exchange module 200 can occupy most of the space inside the inner container 100, and since the energy storage material 900 is a phase change material, a state change will occur, and based on this, the pressure bearing of the inner container 100 has higher requirements. The existing solution is to set some protrusions or grooves on the outer surface of the inner container 100 to strengthen the rigidity of the inner container 100. In the prior art, the hardness of the thermal insulation material with low thermal insulation coefficient is relatively large, such as vacuum insulation board and polyurethane board, and the protrusions or grooves on the outer surface of the inner container 100 can pierce the thermal insulation material, thereby reducing or even losing the thermal insulation effect. Therefore, in the embodiment of the present application, in order to ensure that the thermal insulation layer can continuously have good thermal insulation effect, the hardness of the first sub-thermal insulation layer 310 is less than that of the second sub-thermal insulation layer 320, and the thermal insulation coefficient of the first sub-thermal insulation layer 310 is higher than that of the second sub-thermal insulation layer 320.

[0140] In this way, the first sub-thermal insulation layer 310 with smaller hardness is difficult to be pierced by the protrusions or grooves on the outer surface of the inner container 100, so that the first sub-thermal insulation layer 310 still has thermal insulation function, and the second sub-thermal insulation layer 320 is not in contact with the protrusions or grooves on the outer surface of the inner container 100, and also can ensure the thermal insulation function, so that in the embodiment of the present application, through the setting of the first thermal insulation layer 330 and the second thermal insulation layer 340, the rigidity of the inner container 100 can be considered, and the thermal insulation performance of the entire energy storage unit 1000 can also be considered.

[0141] Specifically, in the embodiment of the present application, the first sub-thermal insulation layer 310 can be a sponge layer, a rubber layer, or a mixture of sponge and rubber. When the first sub-thermal insulation layer 310 is a sponge layer or a rubber layer, the first sub-thermal insulation layer 310 can still have thermal insulation function when the protrusions or grooves on the outer surface of the inner container 100 are in contact or extruded with the first sub-thermal insulation layer 310. In addition, the raw materials of sponge and rubber are easy to obtain and have low cost.

[0142] The second sub-thermal insulation layer 320 can be a vacuum insulation board, a polyurethane board, or a combination of a vacuum insulation board and a polyurethane board. In order to facilitate the adhesion of the shell 400 and the second sub-thermal insulation layer 320, the second sub-thermal insulation layer 320 is preferably a vacuum insulation board, i.e. a VIP board (Vacuum Insulation Panel). The VIP board has the advantages of low thermal conductivity, small volume, light weight, and flat surface, and has high hardness and cannot be bent. The VIP board can be adhered to the shell 400 to ensure the stability of the entire thermal insulation layer.

[0143] Of course, it can be understood that, in the embodiment of the present application, referring to FIG. 5 and FIG. 6, the outer surface of the inner container 100 has a protruding part 140, preferably a reinforcing rib, the inner container 100 is made of stainless steel, the stainless steel inner container 100 will expand when heated, and the reinforcing rib can increase the rigidity and stability of the stainless steel inner container 100, and the main function of the reinforcing rib is to resist the deformation force generated when the stainless steel inner container 100 expands when heated.

[0144] Referring to FIG. 7a, the protruding part 140 is embedded in the first sub-insulation layer 310, specifically, the protruding part 140 is a reinforcing rib, and the reinforcing rib is generally welded with the inner container 100, and some welding slag may be left after welding, which is difficult to clean, and the residual welding slag is also difficult to contact with the second insulation layer 340 under the covering effect of the first insulation layer 330, thereby ensuring the insulation effect of the second insulation layer 340.

[0145] Further, referring to FIG. 7a, the protruding part 140 includes a plate body part 141 and a standing edge 142 formed by bending the plate body part 141, the presence of the standing edge 142 can strengthen the structural strength of the entire protruding part 140, and thus the inner container 100 can better resist deformation and damage when subjected to external force.

[0146] In some possible embodiments, referring to FIG. 7b, the insulation layer 300 further includes a third sub-insulation layer 360, the third sub-insulation layer 360 is arranged between the second sub-insulation layer 320 and the outer shell 400, the hardness of the third sub-insulation layer 360 is less than that of the second sub-insulation layer 320, the third sub-insulation layer 360 can be a sponge layer, a rubber layer, or a mixture of sponge and rubber, which can protect the second sub-insulation layer 320 together with the first sub-insulation layer 310.

[0147] In the embodiment of the present application, referring to FIG. 3, the inner container 100 includes an inner container shell, the heat exchange module 200 is installed in the inner container shell, the energy storage material 900 is filled in the inner container shell and at least partially submerges the heat exchange module 200, the inner container shell is configured to protect the energy storage material 900 and the heat exchange module 200, and serves as the first layer of insulation, and the insulation layer 300 is arranged on the outer surface of the inner container shell, which can further improve the insulation effect of the inner container 100, thereby reducing the energy loss in the inner container shell.

[0148] Referring to FIGS. 5-6, in the embodiments of the present application, the inner container shell includes a first end shell 110, a second end shell 120, and a side shell 130, the side shell 130 surrounds to form an inner container space 100a, the first end shell 110 covers the upper side of the inner container space 100a along the direction of gravity, and the second end shell 120 covers the lower side of the inner container space 100a along the direction of gravity, the split design makes each part of the inner container shell can be manufactured and transported separately, and then assembled, for example, the second end shell 120 and the side shell 130 can be installed first, then the heat exchange module 200 and the energy storage material 900 are installed into the inner container space 100a, and finally the first end shell 110 is installed. This modular design not only simplifies the manufacturing process, but also reduces transportation costs. At the same time, when it is necessary to maintain or replace parts, it is also more convenient to operate, thereby improving the maintenance efficiency.

[0149] The energy storage material 900 is filled in the inner container space 100a of the inner container shell and has a gap with the first end shell 110, as shown in FIG. 3, when the energy storage material 900 changes state, the inner container space 100a has enough space to accommodate the energy storage material 900 whose volume changes due to state change, thereby reducing the pressure on the inner container shell, and further reducing the risk of rupture of the inner container shell.

[0150] Based on the split design of the inner container shell, in order to facilitate the thermal insulation layer 300 to adhere to the inner container shell and reduce the air gap between the thermal insulation layer 300 and the inner container shell, the thermal insulation effect is ensured, that is, in the embodiments of the present application, please continue to refer to FIGS. 7a-9, the thermal insulation layer 300 includes a first thermal insulation layer 330, a second thermal insulation layer 340, and a third thermal insulation layer 350, the first thermal insulation layer 330 is attached to the first end shell 110, the second thermal insulation layer 340 is attached to the second end shell 120, and the third thermal insulation layer 350 is attached to the outer surface of the side shell 130. In this way, the split design of the thermal insulation layer 300 reduces the stress concentration problem caused by the complex overall structure, and reduces the risk of damage caused by long-term use or accidental impact. At the same time, the independent attachment of the first thermal insulation layer 330, the second thermal insulation layer 340, and the third thermal insulation layer 350 also facilitates local replacement when damaged, thereby prolonging the service life of the product.

[0151] Referring to FIG. 8, in some embodiments, the outer surface of the second end shell 120 is provided with a first support portion 121, the first support portion 121 is supported on the bottom wall of the outer shell 400, the first support portion 121 can support the entire inner container 100, and has the functions of shock absorption and buffering. When the energy storage unit 1000 is subjected to external impact or vibration, the first support portion 121 can absorb part of the energy and reduce the influence on the second end shell 120. In addition, the first support portion 121 can make the second end shell 120 have a gap with the bottom wall of the outer shell 400, thereby providing a mounting position for the second thermal insulation layer 340.

[0152] Specifically, please refer back to FIG. 5, and continue to refer to FIG. 8, the first support part 121 includes a first plate part 1211 and two groups of first support feet 1212.

[0153] The first plate part 1211 can be attached to the outer surface of the second end shell 120 by welding or the like, so that the entire first support part 121 has sufficient area contact with the second end shell 120, ensuring that the second end shell 120 is uniformly stressed as a whole.

[0154] The first support feet 1212 are respectively arranged at the edges of the first plate part 1211 along the first direction XX and are supported on the bottom wall of the outer shell 400, so that the first support feet 1212 support the entire inner container shell, while the first support feet 1212 occupy a small space, making the overall structure compact.

[0155] As shown in FIG. 8, the first plate part 1211 has a second plate part 1213 along the edge of the second direction YY, and the second plate part 1213, the first support feet 1212 and the first plate part 1211 can form a first limiting space 121a, which can serve as a guide to facilitate the positioning of the second thermal insulation layer 340 in the first limiting space 121a, thereby simplifying the positioning and installation steps of the second thermal insulation layer 340.

[0156] The second thermal insulation layer 340 also includes a first sub-thermal insulation layer 310 and a second sub-thermal insulation layer 320, wherein the first sub-thermal insulation layer 310 can be a sponge layer, a rubber layer, or a combination of sponge and rubber, and the second sub-thermal insulation layer 320 can be a vacuum insulation panel, a polyurethane panel, or a combination of vacuum insulation panel or polyurethane panel. Preferably, the second sub-thermal insulation layer 320 is a vacuum insulation panel, i.e. a VIP panel.

[0157] The first limiting space 121a can simplify the installation steps of the first sub-thermal insulation layer 310, while the second sub-thermal insulation layer 320 is located outside the first limiting space 121a and is attached to the first sub-thermal insulation layer 310. There is a gap between the side of the second sub-thermal insulation layer 320 away from the first sub-thermal insulation layer 310 and the bottom wall of the outer shell 400, so that the second sub-thermal insulation layer 320 with higher hardness can avoid contacting the bottom wall of the outer shell 400, thereby improving the protection of the second sub-thermal insulation layer 320 and ensuring the thermal insulation effect of the thermal insulation layer.

[0158] Further, referring to FIG. 9, the outer surface of the first end shell 110 is provided with two groups of second support portions 111, and the two groups of second support portions 111 and the first end shell 110 form a second limiting space 111a, which can guide the installation of the first sub-thermal insulation layer 310, improve the installation efficiency, and due to the existence of the second limiting space 111a, the first thermal insulation layer 330 can be firmly limited in the second limiting space 111a, and the stability of the overall structure is also increased.

[0159] Please continue to refer to FIG. 9, the second support portion 111 includes a first connecting portion 1111 and an intermediate portion 1112.

[0160] The first connecting portion 1111 can be attached to the outer surface of the first end shell 110 by welding or the like, so that the entire first connecting portion 1111 has sufficient area contact with the first end shell 110, and the overall stress of the first end shell 110 is uniform.

[0161] The intermediate portion 1112 connects the first connecting portion 1111 and extends in the opposite direction of the gravity direction, and the intermediate portion 1112, the first connecting portion 1111 and the first end shell 110 surround the second limiting space 111a, wherein the intermediate portion 1112 can be formed by bending the edge of the first connecting portion 1111, so that the second limiting space 111a can be formed without other connection methods, and the bending method can also increase the strength of the second support portion 111, thereby ensuring the stability of the product.

[0162] Based on the fact that the first thermal insulation layer 330 and the second thermal insulation layer 340 can be quickly installed, in order to realize the quick installation of the third thermal insulation layer 350, please continue to refer to FIG. 9, the second support portion 111 further includes a second connecting portion 1113, the second connecting portion 1113 is connected to one side of the intermediate portion 1112 away from the first connecting portion 1111, the second connecting portion 1113 is parallel to the first connecting portion 1111, and the second connecting portion 1113 and the intermediate portion 1112 and the side shell 130 form a third limiting space 111b, the third limiting space 111b can guide the installation of the third thermal insulation layer 350, so that the third thermal insulation layer 350 is attached to the intermediate portion 1112 and the second connecting portion 1113, so that it can also be firmly limited in the third limiting space 111b, thereby increasing the stability of the overall structure.

[0163] Please continue to refer to FIG. 9, in the embodiment of the application, the second support portion 111 further includes a third connecting portion 1114, the third connecting portion 1114 is connected to one side of the intermediate portion 1112 of the second connecting portion 1113, the third connecting portion 1114 is parallel to the intermediate portion 1112, the inner surface of the outer side shell 411 has a hanging portion 410, and the third connecting portion 1114 is clamped with the hanging portion 410.

[0164] In consideration of actual assembly, the outer shell 411 is also a split structure, and the hanging part 410 is arranged on the inner surface of the outer shell 411, so that the outer shell 411 can be positioned during assembly, the possibility of shaking of the outer shell 411 is reduced, and the outer shell 411 can be further processed conveniently.

[0165] Specifically, the third connecting part 1114 is a plate-shaped structure, and the hanging part 410 forms a clamping groove, as shown in FIG. 9, so that the plate-shaped structure is clamped in the clamping groove. In some other embodiments, the third connecting part 1114 can form a clamping groove, and the hanging part forms a plate-shaped structure, and the clamping function can also be achieved, which will not be explained here.

[0166] In the embodiment of the present application, referring to FIG. 4, the shell 400 includes a plurality of outer shells 411, an outer top cover 412 and an outer bottom disc 413. The outer top cover 412 is arranged on the upper side of the inner container 100 along the gravity direction and connects one side of the outer shell 411, that is, the outer top cover 412 is arranged opposite to the first end shell 110. The outer bottom disc 413 is arranged on the lower side of the inner container 100 along the gravity direction and connects the other side of the outer shell 411 opposite to the outer top cover 412, that is, the outer bottom disc 413 is arranged opposite to the second end shell 120. The plurality of outer shells 411 are arranged opposite to the corresponding side shells 130.

[0167] The adjacent outer shells 411 are detachably connected. When the hanging part 410 is arranged on the inner surface of the outer shell 411, the outer shell 411 can be pre-fixed, and the installation efficiency of the adjacent two outer shells 411 can be improved.

[0168] Further, in order to further improve the installation efficiency between the adjacent two outer shells 411, referring to FIGS. 9-10, the outer shell 411 includes an outer shell body 4111 and a first bending part 4112 bent from the outer shell body 4111. The first bending part 4112 and the outer shell body 4111 are arranged at right angles, so that the first bending part 4112 of the adjacent outer shell 411 can abut against the outer shell body 4111, and the outer shell body 4111 of the adjacent outer shell 411 can abut against the first bending part 4112, thereby positioning the adjacent outer shells 411, making the adjacent two outer shells 411 more stable, and facilitating subsequent installation. The first bending part 4112 of one of the adjacent two outer shells 411 is connected to the outer shell body 4111 of the other outer shell 411 by a fastener.

[0169] Specifically, a bolt hole can be formed in the first bending part 4112 of one of the outer shells 411, and a bolt hole can also be formed in the outer shell body 4111 of the adjacent outer shell 411, and a bolt passes through the corresponding bolt holes, thereby achieving relative fixation of the adjacent two outer shells 411.

[0170] In the embodiments of the present application, referring to FIG. 10, the thermal insulation layer forms an avoiding area 300a corresponding to the first bending part 4112, which can provide space for bolt installation. In addition, in the embodiments of the present application, the thermal insulation layer includes a first sub-thermal insulation layer 310 and a second sub-thermal insulation layer 320, and the first sub-thermal insulation layer 310 is closer to the inner container 100, and the second sub-thermal insulation layer 320 has a hardness greater than that of the first sub-thermal insulation layer 310. Therefore, the avoiding area 300a can prevent the bolt from piercing the second sub-thermal insulation layer 320, thereby ensuring the thermal insulation effect of the second sub-thermal insulation layer 320.

[0171] The avoiding area 300a extends along a third direction ZZ perpendicular to the first direction XX and the second direction YY. Referring to the orientation shown in FIG. 10, the third direction ZZ is the direction of gravity. The avoiding area 300a can provide installation positions for the plurality of fasteners. In this way, the fasteners are less likely to contact the second sub-thermal insulation layer 320, thereby improving the stability of the structure of the second sub-thermal insulation layer 320.

[0172] Further, referring to FIG. 10, the first bending part 4112 of at least one of the two adjacent outer shells 411 is bent away from the outer shell body 4111 to form a second bending part 4113. In the embodiments of the present application, the first bending part 4112 of one of the two adjacent outer shells 411 is bent away from the outer shell body 4111 to form a second bending part 4113. The second bending part 4113 extends towards the avoiding area 300a and is arranged opposite the fastener. The second bending part 4113 is a plate-shaped structure, which has a larger contact area with the second sub-thermal insulation layer 320 relative to the fastener. In the event of a collision, the second sub-thermal insulation layer 320 is less likely to be damaged.

[0173] The second bending part 4113 can be one or multiple. When there are multiple second bending parts 4113, they can correspond to multiple fasteners one by one. The actual situation can be considered for setting.

[0174] Referring back to FIGS. 3, 4 and 8, the outer surface of the outer bottom disc 413 has an outer support leg 4133. During the movement, transportation or placement of the energy storage unit 1000, the outer support leg 4133 can reduce the direct contact of the outer bottom disc 413 with the ground, thereby avoiding damage such as scratching, abrasion or corrosion, which helps to protect the energy storage unit 1000 and prolong the service life of the energy storage unit 1000.

[0175] Please continue to refer to FIG. 8, in order to improve the structural strength of the outer bottom disc 413, in the embodiment of the application, the outer bottom disc 413 comprises an outer bottom disc plate body 4131 and a vertical plate 4132 formed by bending the outer bottom disc plate body 4131, the vertical plate 4132 is attached to the outer side shell 411, the bent vertical plate 4132 can enhance the stability and rigidity of the entire outer bottom disc 413, in addition, since the vertical plate 4132 is attached to the outer side shell 411, it can also absorb the impact force of the impact on the outer side shell 411, thereby improving the protection effect on the internal shell.

[0176] Along the third direction ZZ, the edge of the vertical plate 4132 does not exceed the edge of the outer side shell 411, as shown in FIG. 8, which can make the overall appearance of the energy storage unit 1000 more neat and beautiful, avoid visual discord caused by structural protrusion, and improve the overall quality of the product.

[0177] Please continue to refer to FIG. 2, at least one of the plurality of outer side shells 411 and the outer top cover 412 is also provided with a pipe hole 400a, the pipe hole 400a is configured to extend out of the pipe line in communication with the heat exchange module 200, the pipe hole 400a can be formed only on the outer side shell 411, or only on the outer top cover 412, or on both the outer side shell 411 and the outer top cover 412, in order to meet the needs of different users.

[0178] In the embodiment of the application, please refer to FIGS. 12-13, the heat exchange module 200 comprises a plurality of sub-heat exchange modules 210, the plurality of sub-heat exchange modules 210 are arranged in parallel along the first direction XX, the interval between the adjacent two sub-heat exchange modules 210 can accommodate the energy storage material 900, so that each sub-heat exchange module 210 can be in full contact with the energy storage material 900, thereby further improving the heat exchange efficiency.

[0179] The top of the sub-heat exchange module 210 and the bottom of the sub-heat exchange module 210 are arranged oppositely along the third direction ZZ, each sub-heat exchange module 210 has a plurality of heat exchange flow paths 210a, each heat exchange flow path 210a has a plurality of curved loops formed by winding along the third direction ZZ, the plurality of curved loops are reciprocally bent along the second direction YY, wherein the first direction XX, the second direction YY and the third direction ZZ are perpendicular to each other, that is, each heat exchange flow path 210a is designed as a disc, which can increase the heat exchange area of the heat exchange flow path 210a in the inner container 100, thereby also increasing the heat exchange efficiency.

[0180] In the embodiment of the present application, referring to FIG. 13, the pipeline structure 220 further comprises a manifold 221 and a plurality of delivery pipes 222. The manifold 221 is arranged on the top of the plurality of sub heat exchange modules 210 and penetrates the inner container 100 to communicate with the external pipeline to input and output the heat source and the first utilization unit 3000. One end of the delivery pipe 222 communicates with the manifold 221 and the other end communicates with the corresponding heat exchange flow path 210a, which can meet the requirement of the heat source and the first utilization unit 3000 for the input position. For example, the heat source can be input into the heat exchange flow path 210a from the top of the sub heat exchange module 210 through the delivery pipe 222 and output from the bottom of the sub heat exchange module 210 through the delivery pipe 222; the first utilization unit 3000 can be input into the heat exchange flow path 210a from the bottom of the sub heat exchange module 210 through the delivery pipe 222 and output from the top of the sub heat exchange module 210 through the delivery pipe 222.

[0181] Further, the sub heat exchange module 210 is a tube fin heat exchanger. Each sub heat exchange module 210 has a plurality of tube fins arranged in a row along the second direction YY (not shown in the figure). Each heat exchange flow path 210a penetrates the plurality of tube fins along the second direction YY. The tube fins increase the heat exchange area, so that the energy storage material 900 can exchange heat more effectively when flowing through the tube fins.

[0182] In addition, the heat exchange flow path 210a penetrates the tube fin, and the tube fin can also support the heat exchange flow path 210a to ensure the stability of the structure of the entire sub heat exchange module 210.

[0183] Please continue to refer to FIGS. 12-13. In the embodiment of the present application, the inner container 100 further has a mounting structure 500. The mounting structure 500 connects the plurality of sub heat exchange modules 210 arranged at intervals along the first direction XX, so that the plurality of sub heat exchange modules 210 can maintain a certain gap along the first direction XX, thereby facilitating the filling of the energy storage material 900 into the gap to improve the heat exchange efficiency.

[0184] Specifically, please continue to refer to FIGS. 14-15. The mounting structure 500 comprises a first connecting piece 510 and a second connecting piece 520.

[0185] With the orientation of Fig. 14 as reference, specifically, the first connecting piece 510 is arranged at the bottom of the sub heat exchange module 210, and the first connecting piece 510 comprises a first plate body 511 and a plurality of first fixing portions 512 arranged on the first plate body 511, the first plate body 511 can be arranged in extension along the first direction XX, and the plurality of first fixing portions 512 can be arranged in sequence and at intervals along the first direction XX, so that the plurality of first fixing portions 512 can be arranged in alignment with the plurality of sub heat exchange modules 210 in the same direction, so that the first fixing portion 512 can be connected with the bottom of the corresponding sub heat exchange module 210, so that the first connecting piece 510 can sequentially connect the bottoms of the plurality of sub heat exchange modules 210.

[0186] The second connecting piece 520 is arranged at the top of the sub heat exchange module 210, and the second connecting piece 520 comprises a second plate body 521 and a plurality of second fixing portions 522 arranged on the second plate body 521, the second plate body 521 can also be arranged in extension along the second direction YY, and the plurality of second fixing portions 522 can be arranged in sequence and at intervals along the second direction YY, so that the plurality of second fixing portions 522 can be arranged in alignment with the plurality of sub heat exchangers in the same direction, so that the second fixing portion 522 can be connected with the top of the corresponding sub heat exchange module 210, so that the second connecting piece 520 can sequentially connect the tops of the plurality of sub heat exchange modules 210.

[0187] Therefore, the plurality of sub heat exchange modules 210 can be constrained and fixed by the first connecting piece 510 and the second connecting piece 520, which not only defines the gap between the adjacent two sub heat exchange modules 210, but also assembles the plurality of sub heat exchange modules 210 into a whole, and by setting the distance between the adjacent two first fixing portions 512 and the distance between the adjacent two second fixing portions 522, the gap size between the adjacent two sub heat exchange modules 210 can be easily controlled, facilitating the filling of the energy storage material 900.

[0188] Referring to Fig. 14, since in the embodiment of the present application, each heat exchange flow path 210a is formed with a plurality of curved loops extending in a meandering manner along the third direction ZZ, and the plurality of curved loops are reciprocally bent along the second direction YY, when the heat exchange module 200 is installed in the inner container space 100a, the heat exchange flow path 210a may collide with the side shell 130, so that the heat exchange module 200 is damaged, thereby affecting heat exchange, therefore, in the embodiment of the present application, the inner container 100 also has a protection structure 600, which reduces the possibility of collision between the heat exchange flow path 210a and the side shell 130.

[0189] Specifically, referring to FIG. 16, the protection structure 600 comprises a third connecting piece 610, which is arranged at the bottom of the sub heat exchange module 210 and comprises a third plate body 611 and a plurality of third fixing portions 612 arranged on the third plate body 611, the plurality of third fixing portions 612 are arranged at intervals along the first direction XX, the third fixing portion 612 is connected with the corresponding sub heat exchange module 210, and the third plate body 611 is protruded along the second direction YY to the heat exchange flow path 210a.

[0190] In this way, the protection structure 600 can have a gap between the sub heat exchange module 210 and the side shell 130 in the second direction YY, thereby forming a protective layer, so that the protection structure 600 can prevent the sub heat exchange module 210 from being damaged by knocking.

[0191] In some possible embodiments, the first plate body 511 and the first fixing portion 512 are designed at an angle, and in the orientation shown in FIG. 16, the first direction XX is the front-back direction, the second direction YY is the left-right direction, and the third direction ZZ is the up-down direction, so that the first plate body 511 is located at the front side of the heat exchange module 200, and the first fixing portion 512 is located at the upper side of the heat exchange module 200, and the third fixing portion 612 can also be connected with the first fixing portion 512 and the heat exchange module 200 at the same time, and in order to facilitate connection, a plurality of avoiding holes 611a are arranged on the third plate body 611, and the plurality of avoiding holes 611a correspond to the plurality of connecting positions one by one, so that the stability of the installation of the protection structure 600 can be increased.

[0192] Please refer back to FIGS. 12-13, and refer to FIG. 17, in order to fix the plurality of manifold pipes 221 and ensure the stability of the manifold pipes 221, in the embodiment of the present application, the inner container 100 also has at least two pipe fixing structures 700, the pipe fixing structure 700 is arranged at the top of the sub heat exchange module 210, and the pipe fixing structure 700 is provided with a plurality of mounting holes at intervals, and the plurality of manifold pipes 221 are correspondingly arranged in the plurality of mounting holes. The manifold pipes 221 are stably installed on the sub heat exchange module 210 through the pipe fixing structure 700, which effectively prevents the shaking or displacement of the manifold pipes 221 during operation, thereby ensuring the stability and reliability of the entire heat exchange system.

[0193] Further, referring to FIG. 17, the inner container 100 has two pipe fixing structures 700, the two pipe fixing structures 700 are arranged at the opposite sides of the heat exchange module 200 along the first direction XX, and the double-side fixing mode effectively reduces the possibility of displacement or shaking of the manifold pipes 221 during operation, thereby enhancing the structural stability of the entire heat exchange module 200.

[0194] Further, please continue to refer to FIG. 17, the pipe fixing structure 700 comprises a mounting plate 710 and a plurality of mounting portions 720 connected to the mounting plate 710, the mounting plate 710 extends along the second direction YY, the plurality of mounting portions 720 protrude along the first direction XX to the heat exchange module 200, the inner container shell has two side shells 130 oppositely arranged along the first direction XX, please refer to FIG. 2 and FIG. 6, the side shell 130 is provided with a plurality of mounting matching portions 131 on the side facing the other side shell 130, and the plurality of mounting matching portions 131 are connected to the corresponding plurality of mounting portions 720.

[0195] Since the plurality of mounting portions 720 protrude along the first direction XX to the heat exchange module 200, when assembling the heat exchange module 200 and the inner container 100, a gap can be formed between the heat exchange module 200 and the side shell 130, as shown in the figure, so that the possibility of the heat exchange module 200 contacting the side shell 130 of the inner container 100 during installation of the heat exchange module 200 can be reduced, the damage caused by possible scratches during installation can be reduced, and the integrity of the heat exchange module 200 and the inner container 100 is protected.

[0196] In addition, the gap between the heat exchange module 200 and the side shell 130 can provide a containing position for the energy storage material 900, since the energy storage material 900 is in direct contact with the heat exchange module 200, even if there is bumping or even falling during transportation, the heat exchange module 200 is difficult to contact the side shell 130, thereby improving the safety and reliability of the entire energy storage unit 1000.

[0197] The plurality of mounting portions 720 of each mounting plate 710 can be two, three, etc., which is specifically set according to the actual situation, and is not limited here. Specifically, the mounting portion 720 and the mounting matching portion 131 can be plate-shaped structures, and bolt holes are formed, the mounting portion 720 and the mounting matching portion 131 are connected by lapping and bolting, of course, in some other possible embodiments, the mounting portion 720 and the mounting matching portion 131 can also be other structures or other connection methods, such as clamping and welding, which are not specifically limited here.

[0198] In the embodiments of the present application, the plurality of heat exchange flow paths 210a of each sub heat exchange module 210 can include one energy charging flow path 211a and one energy discharging flow path 212a, can include one energy charging flow path 211a and a plurality of energy discharging flow paths 212a, can include a plurality of energy charging flow paths 211a and one energy discharging flow path 212a, or can include a plurality of energy charging flow paths 211a and a plurality of energy discharging flow paths 212a. The energy charging flow path 211a is located on the same energy charging loop 2000a as the energy storage unit 2000. The energy discharging flow path 212a is located on the same energy discharging loop 3000a as the first utilization unit 3000. The energy storage unit 2000 provides energy. The energy exchanges heat with the energy storage material 900 when passing through the energy charging flow path 211a, and the first utilization unit 3000 provides a heat-using substance. The heat-using substance exchanges heat with the energy storage material 900 when passing through the energy discharging flow path 212a, thereby completing the absorption and conversion of heat.

[0199] In the embodiments of the present application, referring to FIGS. 18-19, preferably, the plurality of heat exchange flow paths 210a of each sub heat exchange module 210 include a plurality of energy charging flow paths 211a and a plurality of energy discharging flow paths 212a. The energy charging loop 2000a and the energy discharging loop 3000a are alternately and spacedly arranged along the first direction XX. In this way, the overall sub heat exchange module 210 can be compactly arranged, and the uniformity of heat exchange of the energy storage material 900 and the uniformity of heat exchange of the energy discharging flow path 212a can be improved.

[0200] Based on the fact that the energy charging flow path 211a is used to transport energy and the energy discharging flow path 212a is used to transport the first utilization unit 3000, in order to ensure the stability during the transportation process, at least one of the energy charging flow path 211a and the energy discharging flow path 212a includes a copper pipe, a copper alloy pipe or a stainless steel pipe, that is, the energy charging flow path 211a can include a copper pipe, a copper alloy pipe or a stainless steel pipe, can include two or more than two pipes of a copper pipe, a copper alloy pipe and a stainless steel pipe, and the energy discharging flow path 212a is the same.

[0201] The first utilization unit 3000 includes a water-using unit, and the water-using unit can be municipal water. Municipal water can be rich in chloride ions. Chloride ions can react with aluminum, thereby affecting the quality of the final water. Therefore, in some embodiments, the energy charging flow path 211a can include an aluminum pipe, and the energy discharging flow path 212a includes a stainless steel pipe. The aluminum pipe has a relatively light overall structure, which can reduce the weight of the entire energy storage unit 1000 and facilitate transportation.

[0202] Based on the manifold 221 needs to collect external energy (heat source) and the first external utilization unit 3000, and needs to flow with the corresponding charging flow path 211a and the discharging flow path 212a, so in the embodiment of the application, please refer to FIG. 11-12, the manifold 221 includes charging inlet pipe 2211, charging outlet pipe 2212, discharging inlet pipe 2213 and discharging outlet pipe 2214, the charging inlet pipe 2211 and the charging outlet pipe 2212 are communicated with the charging flow path 211a, the discharging inlet pipe 2213 and the discharging outlet pipe 2214 are communicated with the discharging flow path 212a.

[0203] The external pump body delivers the external energy to the charging inlet pipe 2211 to collect, and then delivers to each sub heat exchange module 210 through the delivery pipe 222, the sub heat exchange module 210 exchanges heat with the energy storage material 900, and the heat of the external heat source is transmitted to the energy storage material 900 and then enters the charging outlet pipe 2212 through the delivery pipe 222, and then is delivered to the external heat pump for heating, forming the charging flow path 211a.

[0204] The first utilization unit 3000 collects in the discharging inlet pipe 2213, and then delivers to each sub heat exchange module 210 through the delivery pipe 222, the sub heat exchange module 210 exchanges heat with the energy storage material 900, and the first utilization unit 3000 absorbs the stored heat from the energy storage material 900 and then enters the discharging outlet pipe 2214 through the delivery pipe 222, and finally is delivered to the outside of the energy storage unit 1000, forming the discharging flow path 212a.

[0205] In order to improve the heat exchange efficiency, that is, further improve the utilization rate of the energy storage material 900, referring to FIG. 19-20, the pipeline structure 220 further includes a plurality of three-way pipes 223, one end of each three-way pipe 223 is communicated with one delivery pipe 222, and the other two ends of each three-way pipe 223 are respectively communicated with the interval heat exchange flow path 210a of the corresponding sub heat exchange module 210.

[0206] Among them, based on the delivery pipe 222 needs to connect different manifold 221, so in the embodiment of the application, please refer to FIG. 19, the delivery pipe 222 includes charging branch inlet pipe 2221, charging branch outlet pipe 2222, discharging branch inlet pipe 2223 and discharging branch outlet pipe 2224, based on the heat exchange module 200 includes a plurality of sub heat exchange modules 210, so in the embodiment of the application, the charging branch inlet pipe 2221, the charging branch outlet pipe 2222, the discharging branch inlet pipe 2223 and the discharging branch outlet pipe 2224 are also provided with a plurality of, and in the embodiment of the application, referring to FIG. 18, the plurality of charging branch inlet pipe 2221, the plurality of charging branch outlet pipe 2222, the plurality of discharging branch inlet pipe 2223 and the plurality of discharging branch outlet pipe 2224 are spaced apart along the first direction XX, which can make the space occupied by the delivery pipe 222 smaller, and finally make the internal structure of the whole energy storage unit 1000 compactly distributed.

[0207] Further, referring to FIG. 21, in the embodiment of the present application, the charging outlet pipe 2222 comprises a first pipe segment and a second pipe segment, one of the first pipe segment and the second pipe segment is located in the first vertical plane M and the other is located in the second vertical plane N along the second direction YY, and the discharging inlet pipe 2223 is located in the first vertical plane M or the second vertical plane N, so that the charging outlet pipe 2222 and the discharging inlet pipe 2223 are staggered, when the charging outlet pipe 2222 is connected to multiple charging flow paths 211a through a three-way joint or a multi-way joint, and when the discharging inlet pipe 2223 is connected to multiple discharging flow paths 212a through a three-way joint or a multi-way joint, the joint connected to the charging outlet pipe 2222 and the joint connected to the discharging inlet pipe 2223 are staggered, so that the overall space layout is more compact.

[0208] Specifically, in the embodiment of the present application, the first pipe segment of the charging outlet pipe 2222 is located above the second pipe segment, and the first pipe segment is located in the first vertical plane M and the second pipe segment is located in the second vertical plane N, and the second vertical plane N is closer to the heat exchange module 200 than the first vertical plane M, and the discharging inlet pipe 2223 is located in the first vertical plane M.

[0209] Of course, in other embodiments, the discharging inlet pipe 2223 comprises a first pipe segment 22231 and a second pipe segment 22232, one of the first pipe segment and the second pipe segment is located in the first vertical plane M and the other is located in the second vertical plane N along the second direction YY, and the charging outlet pipe 2222 is located in the first vertical plane M or the second vertical plane N.

[0210] Specifically, the first pipe segment 22231 of the discharging inlet pipe 2223 is located above the second pipe segment 22232, and the first pipe segment 22231 is located in the first vertical plane M and the second pipe segment 22232 is located in the second vertical plane N, and the second vertical plane N is closer to the heat exchange module 200 than the first vertical plane M, and the charging outlet pipe 2222 is located in the first vertical plane M.

[0211] Further, in order to improve the utilization rate of the internal space of the liner 100, referring to FIG. 21, in the embodiment of the present application, the charging outlet pipe 2222 and the discharging inlet pipe 2223 are closer to the liner 100 than the charging inlet pipe 2221 and the discharging outlet pipe 2224 along the second direction YY, i.e., the charging outlet pipe 2222 and the discharging inlet pipe 2223 are staggered with the charging inlet pipe 2221 and the discharging outlet pipe 2224, which optimizes the space layout and enables the charging outlet pipe 2222, the discharging inlet pipe 2223, the charging inlet pipe 2221 and the discharging outlet pipe 2224 to be distributed more compactly.

[0212] The inner container 100 further has at least two temperature sensing modules 800, each of which includes a probe 810, one of which is capable of being inserted into the bottom end of the energy storage material 900, which has a first preset depth, and the other of which is capable of being inserted into the top end of the energy storage material 900, which has a second preset depth, and the energy storage material 900 can be divided into a high-temperature zone and a low-temperature zone along its depth direction, that is, one of the two temperature sensing modules 800 can extend into the high-temperature zone and be configured to detect the first temperature of the energy storage material 900 located in the high-temperature zone, and the other temperature sensing module 800 can extend into the low-temperature zone and be configured to detect the second temperature of the energy storage material 900 located in the low-temperature zone, the temperature range of the high-temperature zone satisfies greater than or equal to 58℃ and less than or equal to 65℃, and the temperature range of the low-temperature zone satisfies less than or equal to 10℃, so that whether the energy storage material 900 needs to be charged at this time can be determined according to the measured first temperature and second temperature.

[0213] Please refer to FIG. 22 and FIG. 23, in some embodiments, the temperature sensing module 800 can further include a support plate 820, a blind tube 830, and the temperature sensing module 800.

[0214] Optionally, the support plate 820 is a square plate, which can be fixed to the heat exchange module 200 by threaded connection or welding, and the support plate 820 has an assembly hole (see the figure).

[0215] The blind tube 830 is a hollow tube, one end of which is an open end, and the other end of which is a closed end, which can be inserted into the assembly hole, so that the closed end of the blind tube 830 extends into the heat exchange module 200, and the open end of the blind tube 830 can be connected with the support plate 820, so that the blind tube 830 can be accurately installed at a specified position in the heat exchange module 200 through the support plate 820.

[0216] In combination with FIG. 24 and FIG. 25, the inner wall surface of the blind tube 830 can further be provided with a positioning structure, the temperature sensing module 800 can include a probe 810, which can be arranged inside the blind tube 830, and the probe 810 can cooperate with the positioning structure to limit the depth of the probe 810 extending into the blind tube 830, or the depth of the probe 810 extending into the heat exchange module 200, so that the probe 810 can be stably installed at a specified position in the heat exchange module 200, thereby accurately monitoring the temperature change of the energy storage material in the specified area of the heat exchange module 200.

[0217] Please refer to FIG. 25, in some embodiments, the positioning structure can include a positioning protrusion 831 arranged on the inner wall surface of the blind tube 830, and the probe 810 can be clamped or abutted with the positioning protrusion 831.

[0218] Optionally, the inner wall surface of the blind pipe 830 can be protruded to one side of the axis of the blind pipe 830 to form a positioning protrusion 831. When installing the temperature sensing module 800, the probe 810 is inserted into the pipe body of the blind pipe 830 from the pipe opening of the blind pipe 830. As the probe 810 gradually extends, the probe 810 can be clamped or abutted with the positioning protrusion 831. The positioning protrusion 831 can prevent the probe 810 from continuing to extend into the blind pipe 830, thereby fixing the probe 810 at a specified position in the blind pipe 830. Since the blind pipe 830 is fixedly installed on the heat exchange module 200, the probe 810 can be fixed at a specified position of the heat exchange module 200, so that the probe 810 can be configured to detect the temperature of the energy storage material in the specified area. By providing the positioning protrusion 831 on the inner wall surface of the blind pipe 830, the probe 810 can be conveniently positioned at the specified position.

[0219] Optionally, the positioning protrusion 831 is arranged in a circle along the circumference of the blind pipe 830, so that a circular protrusion is formed on the inner wall surface of the blind pipe 830. When the probe 810 is arranged in the blind pipe 830, the lower end of the probe 810 can be inserted into the circular protrusion and abutted with the circular protrusion, thereby positioning the probe 810 at the position provided with the positioning protrusion 831.

[0220] Optionally, the inner wall surface of the blind pipe 830 can be provided with a plurality of positioning protrusions 831. The plurality of positioning protrusions 831 can be arranged in sequence and spaced apart along the circumference of the blind pipe 830. Adjacent two positioning protrusions 831 can form a clamping groove. When the probe 810 is arranged in the blind pipe 830, the probe 810 can be clamped with the clamping groove, thereby positioning the probe 810 at the position provided with the positioning protrusion 831.

[0221] Please refer to FIG. 24 to FIG. 26. In some embodiments, the temperature sensing module 800 can further include a sensor wire body 840, which is partially inserted into the blind pipe 830 and connected with the probe 810, and the outer wall surface of the sensor wire body 840 is provided with an in-place indicating part 841. When the probe 810 cooperates with the positioning structure, the in-place indicating part 841 is located at the pipe opening of the blind pipe 830.

[0222] Specifically, the sensor wire body 840 usually contains a wire, which can be connected with the probe 810 and configured to transmit the temperature signal detected by the probe 810. The sensor wire body 840 is partially inserted into the blind pipe 830, which can also play a role in regulating the sensor wire body 840 to prevent the sensor wire body 840 from swinging.

[0223] Optionally, the outer wall surface of the sensor wire body 840 can be provided with a to-position indicating part 841, the to-position indicating part 841 can be arranged along the length direction of the sensor wire body 840, and the length of the sensor wire body 840 between the to-position indicating part 841 and the probe 810 can be flexibly adjusted according to the distance between the pipe opening of the blind pipe 830 and the positioning structure, so that when the temperature sensing module 800 is installed, the installation state of the probe 810 can be judged by observing the position of the to-position indicating part 841.

[0224] Specifically, when the temperature sensing module 800 is installed, the probe 810 can be inserted into the blind pipe 830 first, then the sensor wire body 840 is gradually inserted into the blind pipe 830 to drive the probe 810 to further extend into the blind pipe 830, until the sensor wire body 840 cannot continue to extend into the blind pipe 830, at this time, whether the probe 810 is installed in place can be judged according to the positional relationship between the to-position indicating part 841 and the blind pipe 830.

[0225] More specifically, if the to-position indicating part 841 is located at the pipe opening of the blind pipe 830 at this time, it means that the probe 810 has successfully cooperated with the positioning structure, and the probe 810 has been installed in place; if there is still a distance between the to-position indicating part 841 and the pipe opening of the blind pipe 830 at this time, it means that the probe 810 may be stuck somewhere in the blind pipe 830, but has not extended to the positioning structure, and the probe 810 has not been installed in place; if the to-position indicating part 841 has extended into the inside of the blind pipe 830 at this time, it means that the positioning structure may have been damaged and cannot limit the probe 810, and the probe 810 has not been installed in place.

[0226] Therefore, by observing the positional relationship between the to-position indicating part 841 and the pipe opening of the blind pipe 830, whether the probe 810 is installed in place can be quickly and accurately judged.

[0227] Optionally, the to-position indicating part 841 is a mark or feature, for example, the to-position indicating part 841 can be a color mark, a protrusion, a groove or other forms of marks.

[0228] Please refer to FIG. 23 and FIG. 24, in some embodiments, the temperature sensing module 800 can also include a joint piece 850, the joint piece 850 is arranged at the pipe opening of the blind pipe 830, the sensor wire body 840 is arranged through the joint piece 850 and inserted into the blind pipe 830, and the joint piece 850 is configured to lock or loosen the sensor wire body 840.

[0229] Optionally, the joint member 850 is installed at the pipe opening of the blind pipe 830, when the temperature sensing module 800 is installed, the sensor wire body 840 will pass through the joint member 850 and be inserted into the blind pipe 830 until the probe 810 is matched with the positioning structure, at this time the joint member 850 can be locked, when the joint member 850 is locked, the sensor wire body 840 can be fixed to prevent the sensor wire body 840 from loosening or moving in the blind pipe 830, so that the probe 810 can be stably fixed in the blind pipe 830 and accurately monitor the temperature change of the energy storage material. When the probe 810 needs to be maintained or replaced, the joint member 850 is simply loosened, and the sensor wire body 840 can be easily pulled out of the blind pipe 830 without complex disassembly operation.

[0230] Please refer to FIG. 26, in some embodiments, the joint member 850 can include a base 851 and a fastening head 852, the base 851 is connected at the pipe opening of the blind pipe 830, the fastening head 852 is threadedly matched with the base 851, the sensor wire body 840 can be sequentially arranged in the fastening head 852 and the base 851, and the sensor wire body 840 can be easily locked or loosened by rotating the fastening head 852 relative to the base 851 to lock or loosen the sensor wire body 840.

[0231] Specifically, the base 851 can adopt a size and shape matched with the blind pipe 830, so that the two can be stably connected together, and the base 851 can also be connected with the support plate 820, so that the blind pipe 830, the base 851 and the support plate 820 can be connected together, and the base 851 can be provided with a first through hole 851a, which can be communicated with the blind pipe 830.

[0232] The fastening head 852 is provided with a second through hole 852a, which is coaxially arranged with the first through hole 851a and connected with the first through hole 851a, so that the sensor wire body 840 can be sequentially arranged in the second through hole 852a and the first through hole 851a and inserted into the blind pipe 830.

[0233] Rotating the fastening head 852 relative to the base 851 can cause the thread feeding or withdrawing action between the fastening head 852 and the base 851, and the fastening head 852 can lock or loosen the sensor wire body 840. More clearly, when the fastening head 852 is screwed, the fastening head 852 will approach the base 851, and the fastening head 852 and the base 851 will generate sufficient friction force after being matched, so as to firmly lock the sensor wire body 840 in the blind pipe 830. Conversely, when the sensor wire body 840 needs to be loosened, the fastening head 852 can be rotated in the opposite direction.

[0234] Optionally, the temperature sensing module 800 can further include a heat conducting oil, which is a special lubricating oil used at high temperatures. The heat conducting oil can be arranged inside the blind pipe 830 and can immerse the probe 810. By filling the heat conducting oil in the blind pipe 830, the air isolation layer between the probe 810 and the energy storage material can be eliminated, thereby improving the heat transfer effect between the probe 810 and the energy storage material, accelerating the response speed of the probe 810 to temperature changes, and improving the measurement accuracy.

[0235] In combination with FIG. 26, the temperature sensing module 800 can further include a sealing member 860, which can be arranged between the sensor wire body 840 and the blind pipe 830 to seal the gap between the sensor wire body 840 and the blind pipe 830.

[0236] Specifically, the sealing member 860 is a component configured to fill or seal the gap between two objects, which is usually made of rubber, plastic or other elastic materials. The sealing member 860 can increase the air tightness of the pipe opening of the blind pipe 830, prevent the heat conducting oil inside the blind pipe 830 from evaporating into the external environment through the pipe opening, improve the stability of the heat conducting oil inside the blind pipe 830, thereby increasing the measurement accuracy of the probe 810, and also prevent external air, moisture or other impurities from entering the inside of the blind pipe 830, thereby protecting the probe from damage.

[0237] The embodiments of the present application also provide a heating and ventilation system, which can include an air conditioner, a multi-split air conditioner, a heat pump and other systems configured for heating. Specifically, referring to FIG. 1, the heating and ventilation system includes an energy unit 2000, a first utilization unit 3000 and the above-mentioned energy storage unit 1000.

[0238] The energy unit 2000 is an external heat source. The energy storage unit 1000 communicates with the energy unit 2000 through a charging circuit 2000a. The energy exchanges heat with the energy storage material 900 when passing through the charging circuit 2000a. The energy storage unit 1000 communicates with the first utilization unit 3000 through a discharging circuit 3000a. The first utilization unit 3000 exchanges heat with the energy storage material 900 when passing through the discharging circuit 3000a.

[0239] Optionally, the energy unit 2000 can include a main heat source unit and an auxiliary main heat source unit. Both the main heat source unit and the auxiliary main heat source unit can communicate with the charging circuit 2000a and can transfer heat to the energy storage material 900 through the charging circuit 2000a.

[0240] The main heat source unit can include one of a solar heat collection module, a water source heat exchange module and an air source heat exchange module, and in the case where conditions permit, the more environmentally friendly natural energy such as the solar heat collection module, the water source heat exchange module and the air source heat exchange module is preferentially used to exchange heat with the energy storage material 900, so that energy can be saved.

[0241] The auxiliary main heat source unit includes an electric heating module, and when the main heat source unit is insufficient in energy supply, the auxiliary heat source unit can be used to provide energy, so as to ensure the stability and continuity of heat energy supply.

[0242] In the embodiment of the application, the heating system can further include a second utilization unit 4000, and the energy unit 2000 and the second utilization unit 4000 are communicated through a heat transfer pipeline 4000a, and the heat transfer pipeline 4000a is connected in parallel with the energy charging circuit 2000a.

[0243] The first utilization unit 3000 can be a water unit, such as municipal water;

[0244] The second utilization unit 4000 can be a heating unit, and the flow medium in the heating unit can be refrigerant, and the temperature in the room can be adjusted through the heat exchange between the refrigerant and the room.

[0245] In this way, the system can more flexibly allocate and utilize heat energy. In the case where a large amount of hot water supply is not required, more heat energy can be directed to the heating unit, so as to improve the overall energy utilization efficiency.

[0246] And the heating system has a first working mode and a second working mode.

[0247] When the heating system is in the first working mode, the energy unit 2000 can provide heat for the energy storage material 900, so that the water unit can absorb the heat stored in the energy storage material 900 to heat cold water, thereby providing hot water for users; when the heating system is in the second working mode, the energy unit 2000 can provide heat for the refrigerant, so that the heating unit can be configured to adjust the indoor temperature.

[0248] In the drawings of the embodiment, the same or similar reference numerals correspond to the same or similar parts; in the description of the application, it should be understood that the orientations or positional relationships indicated by the terms "upper", "lower", "left", "right" and the like are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore the terms describing the positional relationship in the drawings are only exemplary and cannot be understood as a limitation on the application.

[0249] The above merely provides preferred embodiments of the present application, and is not used to limit the present application. Any modification, equivalent replacement, and improvement made in the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An energy storage unit which communicates with an external energy source unit and a first utilization unit, wherein, The energy storage unit comprises: an inner container having a heat exchange module and an energy storage material, the heat exchange module being connected to the energy source unit and the first utilization unit, and the energy storage material being in thermal conduction with the heat exchange module; a thermal insulation layer attached to the outer surface of the inner container; an outer shell covering the outer side of the thermal insulation layer.

2. The energy accumulating unit according to claim 1, wherein The thermal insulation layer comprises a first sub-thermal insulation layer and a second sub-thermal insulation layer, the first sub-thermal insulation layer being closer to the inner container than the second sub-thermal insulation layer; wherein the hardness of the first sub-thermal insulation layer is less than that of the second sub-thermal insulation layer, and the thermal insulation coefficient of the first sub-thermal insulation layer is higher than that of the second sub-thermal insulation layer.

3. Accumulator unit according to claim 1 or 2, wherein The first sub-thermal insulation layer comprises at least one of a sponge layer and a rubber layer.

4. The energy storage unit of any one of claims 1 to 3, wherein, The second sub-thermal insulation layer comprises at least one of a vacuum insulation board and a polyurethane board.

5. The energy storage unit of any one of claims 2 to 4, wherein, The thermal insulation layer further comprises: a third sub-thermal insulation layer arranged between the second sub-thermal insulation layer and the outer shell, the hardness of the third sub-thermal insulation layer being less than that of the second sub-thermal insulation layer.

6. The energy accumulating unit according to any one of claims 1 to 5, wherein, The inner container comprises: an inner container shell, the outer surface of which is covered by the thermal insulation layer; the heat exchange module is installed in the inner container shell; the energy storage material is filled in the inner container shell and at least partially submerges the heat exchange module.

7. The energy accumulating unit according to claim 6, wherein The inner container shell comprises a first end shell, a second end shell, and a side shell, the side shell enclosing an inner container space, the first end shell covering the upper side of the inner container space along the direction of gravity, and the second end shell covering the lower side of the inner container space along the direction of gravity; the energy storage material is filled in the inner container space and has a gap with the first end shell.

8. The energy accumulating unit according to claim 7, wherein The thermal insulation layer comprises a first thermal insulation layer, a second thermal insulation layer, and a third thermal insulation layer, the first thermal insulation layer being attached to the first end shell, the second thermal insulation layer being attached to the second end shell, and the third thermal insulation layer being attached to the outer surface of the side shell.

9. The energy accumulating unit according to claim 8, wherein, The lower surface of the second end shell is provided with a first support portion supported on the bottom wall of the outer shell.

10. The energy accumulating unit according to claim 9, wherein, The first support portion comprises: a first plate portion attached to the outer surface of the second end shell; a first support leg provided with two groups, the two groups of the first support leg being arranged on the edges of the first plate portion along a first direction and supported on the bottom wall of the outer shell; the edge of the first plate portion along a second direction has a second plate portion, the second plate portion, the first support leg, and the first plate portion forming a first limiting space, and part of the second thermal insulation layer is located in the first limiting space; wherein the first direction and the second direction are perpendicular to each other.

11. The energy accumulating unit according to claim 10, wherein, The second thermal insulation layer comprises a first sub-thermal insulation layer and a second sub-thermal insulation layer, the first sub-thermal insulation layer being at least partially located in the first limiting space, the second sub-thermal insulation layer being located outside the first limiting space and attached to the first sub-thermal insulation layer, and the lower surface of the second sub-thermal insulation layer having a gap with the bottom wall of the outer shell.

12. The energy storage unit of any one of claims 2 to 11, wherein, The outer surface of the inner container has a protruding portion embedded in the first sub-thermal insulation layer.

13. The energy accumulating unit according to claim 12, wherein, The protruding portion comprises a plate body portion and a standing edge bent from the plate body portion.

14. The energy accumulating unit according to any one of claims 8 to 13, wherein, The outer surface of the first end shell is provided with a second support part, the second support part is formed with a second limiting space, and the first heat preservation layer is located in the second limiting space.

15. The energy accumulating unit according to claim 14, wherein, The second support part comprises: a first connecting part attached to the outer surface of the first end shell; an intermediate part connecting the first connecting part and extending in the opposite direction of the gravity direction, the second limiting space being formed between the intermediate part, the first connecting part and the first end shell.

16. The energy accumulating unit according to claim 15, wherein, The second support part further comprises: a second connecting part connected to the side of the intermediate part away from the first connecting part, the second connecting part being parallel to the first connecting part and forming a third limiting space with the intermediate part; the third heat preservation layer is arranged in the third limiting space, and the third heat preservation layer is attached to the intermediate part and the second connecting part.

17. The energy accumulating unit according to claim 16, wherein, The second support part further comprises: a third connecting part connected to the side of the second connecting part away from the intermediate part, the third connecting part being parallel to the intermediate part; the inner surface of the shell has a hanging part, and the third connecting part is clamped with the hanging part.

18. The energy accumulating unit according to claim 17, wherein, The shell comprises a plurality of outer side shells, an outer top cover and an outer bottom disc, the outer top cover is arranged on the upper side of the inner container along the gravity direction and connects one side of the outer side shell, and the outer bottom disc is arranged on the lower side of the inner container along the gravity direction and connects the other side of the outer side shell opposite to the one side, wherein the inner surface of the outer side shell has the hanging part.

19. The energy accumulating unit of claim 18, wherein, The outer side shell comprises an outer side shell body and a first bending part bent from the outer side shell body, and the first bending part of one of the two adjacent outer side shells is connected with the outer side shell body of the other of the two outer side shells by a fastener.

20. The energy storage unit of claim 19, wherein, The heat preservation layer forms an avoidance area corresponding to the first bending part, and the avoidance area extends along a third direction.

21. The energy accumulating unit according to claim 20, wherein, The first bending part of at least one of the two adjacent outer side shells is bent to form a second bending part away from the outer side shell body, the second bending part extends towards the avoidance area and is arranged opposite to the fastener.

22. The energy storage cell of any one of claims 18-21, wherein, The outer bottom disc comprises an outer bottom disc plate body and a standing plate bent from the outer bottom disc plate body, the standing plate is attached to the outer side shell, and the edge of the standing plate does not exceed the edge of the outer side shell along the third direction. And / or, the outer surface of the outer bottom disc has an outer support foot.

23. The energy accumulating unit according to any one of claims 19 to 22, wherein, At least one of the plurality of outer side shells and the outer top cover is provided with a pipe hole configured to allow a pipe in communication with the heat exchange module to extend out.

24. The energy storage cell of any one of claims 1-23, wherein, The heat exchange module comprises: a plurality of sub-heat exchange modules, the plurality of sub-heat exchange modules are arranged in parallel and spaced apart along a first direction, the top of the sub-heat exchange module and the bottom of the sub-heat exchange module are arranged opposite to each other along a third direction, each sub-heat exchange module has a plurality of heat exchange flow paths, each heat exchange flow path extends in a meandering manner along the third direction to form a plurality of bending loops, and the plurality of bending loops bend back and forth along a second direction, wherein the first direction, the second direction and the third direction are perpendicular to each other. The pipeline structure comprises a manifold and a plurality of delivery pipes, the manifold is arranged on the top of the plurality of sub heat exchange modules and penetrates the inner container, one end of the delivery pipe is communicated with the manifold, and the other end of the delivery pipe is communicated with the corresponding heat exchange flow path.

25. The energy accumulating unit according to claim 24, wherein, Each of the sub heat exchange modules is a tube fin heat exchanger, each of the sub heat exchange modules has a plurality of tube fins arranged in a row along a second direction, and each of the heat exchange flow paths passes through the plurality of tube fins along the second direction.

26. The energy accumulating unit according to claim 24 or 25, wherein, The inner container further has a mounting structure for connecting the plurality of sub heat exchange modules arranged at intervals along the first direction, and the mounting structure comprises: a first connecting member arranged on the bottom of the sub heat exchange module, and the first connecting member comprises a first plate body and a plurality of first fixing portions arranged on the first plate body, the plurality of first fixing portions are arranged at intervals along the first direction, and the first fixing portions are connected with the corresponding sub heat exchange module; and a second connecting member arranged on the top of the sub heat exchange module, and the second connecting member comprises a second plate body and a plurality of second fixing portions arranged on the second plate body, the plurality of second fixing portions are arranged at intervals along the first direction, and the second fixing portions are connected with the corresponding sub heat exchange module.

27. The energy accumulating unit of claim 26, wherein, The inner container further has a protection structure for connecting the plurality of sub heat exchange modules arranged at intervals along the first direction, and the protection structure comprises: a third connecting member arranged on the bottom of the sub heat exchange module, and the third connecting member comprises a third plate body and a plurality of third fixing portions arranged on the third plate body, the plurality of third fixing portions are arranged at intervals along the first direction, and the third fixing portions are connected with the corresponding sub heat exchange module, and the third plate body is protruded to the heat exchange flow path along the second direction.

28. The energy storage cell of any one of claims 24-27, wherein, The inner container further has at least two pipeline fixing structures, the two pipeline fixing structures are arranged on the top of the plurality of sub heat exchange modules and at intervals along the first direction on the opposite sides of the heat exchange modules, the manifold extends along the first direction, and the two ends of the manifold are connected to the two pipeline fixing structures respectively.

29. The energy accumulating unit of claim 28, wherein, The pipeline fixing structure comprises a mounting plate and a plurality of mounting portions connected to the mounting plate, the plurality of mounting portions are arranged at intervals along the second direction and are protruded to the heat exchange modules along the first direction; The inner container comprises two side shells arranged at intervals along the first direction, and one side of the opposite side shell of the two side shells has a mounting matching portion, the mounting matching portion is connected with the corresponding mounting portion, so that a gap is formed between the heat exchange modules and the side shells.

30. The energy storage cell of any one of claims 24-29, wherein, The plurality of heat exchange flow paths of the sub heat exchange module comprise at least one energy charging flow path and at least one energy releasing flow path, the energy charging flow path and the energy unit are located on the same energy charging circuit, and the energy releasing flow path and the first utilization unit are located on the same energy releasing circuit.

31. The energy storage cell of any one of claims 24-30, wherein, The plurality of heat exchange flow paths of the sub heat exchange module comprise a plurality of energy charging flow paths and a plurality of energy releasing flow paths, and the energy charging flow paths and the energy releasing flow paths are alternately and interval arranged along the first direction.

32. The energy accumulating unit according to claim 30 or 31, wherein The energy charging flow path and the energy releasing flow path are both pipes; At least one of the charging flow path and the discharging flow path comprises a copper tube, a copper alloy tube or a stainless steel tube; Or, the charging flow path comprises an aluminum tube, and the discharging flow path comprises a stainless steel tube.

33. The energy accumulating unit according to claim 31 or 32, wherein, The manifold comprises a charging inlet tube, a charging outlet tube, a discharging inlet tube and a discharging outlet tube, which are arranged along a second direction and correspondingly connected with the delivery tubes, and the other ends of the delivery tubes are in flow communication with the corresponding charging flow path and discharging flow path.

34. The energy storage cell of claim 33, wherein, The delivery tube comprises a charging branch inlet tube, a charging branch outlet tube, a discharging branch inlet tube and a discharging branch outlet tube, and a plurality of charging branch inlet tubes, a plurality of charging branch outlet tubes, a plurality of discharging branch inlet tubes and a plurality of discharging branch outlet tubes are arranged along the first direction.

35. The energy storage cell of claim 34, wherein, The charging branch outlet tube comprises a first tube segment and a second tube segment, and one of the first tube segment and the second tube segment is located in a first vertical plane, and the other is located in a second vertical plane, and the discharging branch inlet tube is located in the first vertical plane or the second vertical plane. Or, the discharging branch inlet tube comprises a first tube segment and a second tube segment, and one of the first tube segment and the second tube segment is located in a first vertical plane, and the other is located in a second vertical plane, and the charging branch outlet tube is located in the first vertical plane or the second vertical plane. The first vertical plane and the second vertical plane are not coplanar.

36. The energy storage cell of claim 35, wherein, In the second direction, the charging branch outlet tube and the discharging branch inlet tube are closer to the inner container than the charging branch inlet tube and the discharging branch outlet tube.

37. The energy storage cell of any one of claims 26-36, wherein, The inner container also has at least two temperature sensing modules, and each of the at least two temperature sensing modules comprises a probe, one of the probes of the at least two temperature sensing modules extends into the bottom end of the energy storage material along a third direction, and the other extends into the top end of the energy storage material along the third direction.

38. The energy storage cell of claim 37, wherein, The temperature sensing module further comprises: a support plate fixed relative to the heat exchange module, and the support plate has an assembly hole; and a blind tube inserted into the assembly hole and configured to extend into the energy storage material, and an inner wall surface of the blind tube is provided with a positioning structure; The probe cooperates with the positioning structure to define a preset depth of the probe inserted into the energy storage material.

39. The energy storage cell of claim 38, wherein, The positioning structure comprises a positioning protrusion provided on the inner wall surface of the blind tube, and the probe is clamped or abuts against the positioning protrusion.

40. The energy storage cell of claim 38 or 39, wherein, The temperature sensing module further comprises a sensor wire body, the sensor wire body is partially inserted into the blind tube and connected with the probe, and an outer wall surface of the sensor wire body is provided with a position indicating part, and when the probe cooperates with the positioning structure, the position indicating part is located at a tube opening of the blind tube.

41. The energy storage cell of claim 40, wherein, The temperature sensing module further comprises a connector provided at the tube opening of the blind tube, the sensor wire body is threaded through the connector and inserted into the blind tube, and the connector is configured to lock or release the sensor wire body.

42. A heating and ventilation system wherein, comprise: an energy unit; a first utilization unit; and and The energy storage unit according to any one of claims 1-41, wherein the energy storage unit is in communication with the energy source unit through a charging circuit, the energy storage unit is in communication with the first utilization unit through a discharging circuit, and the charging circuit and the discharging circuit are staggered.

43. The heating system of claim 42, wherein, The energy source unit comprises: a main heat source unit in communication with the energy storage unit through the charging circuit, wherein the main heat source unit comprises one of a solar heat collection module, a water source heat exchange module, and an air source heat exchange module; and an auxiliary heat source unit in communication with the energy storage unit through the charging circuit, wherein the main heat source unit comprises an electric heating module.

44. The heating system of claim 42 or 43, wherein, Further comprising a second utilization unit, wherein the energy source unit is in communication with the second utilization unit through a heat transfer pipeline, and the heat transfer pipeline is in parallel with the charging circuit.

45. The heating system of claim 44, wherein, The heating and ventilation system has: a first working mode, wherein when the heating and ventilation system is in the first working mode, the energy source unit provides heat for the energy storage material, and the first utilization unit absorbs heat of the energy storage material; and a second working mode, wherein when the heating and ventilation system is in the second working mode, the energy source unit provides heat for the second utilization unit.

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