Thermal storage device and heating, ventilation and air conditioning system

Abstract

The present application relates to the technical field of heat exchange apparatuses. Disclosed are a thermal storage device and a heating, ventilation, and air conditioning system. The thermal storage device comprises a housing and at least one temperature-sensing assembly. A heat exchange module and a phase-change material are disposed within the housing, wherein the heat exchange module is embedded in the phase-change material and is in thermal conduction contact with the phase-change material. The temperature-sensing assembly is inserted into the phase-change material to a preset depth, so as to detect the temperature of the phase-change material at said preset depth.

Description

Heat storage device and heating and ventilation system

[0001] The present application claims priority to the Chinese patent application No. 2024224179845, filed on September 30, 2024, entitled "Heat storage device and heating and ventilation system", and the Chinese patent application No. 2024113939596, filed on September 30, 2024, entitled "Heat storage device and heating and ventilation system", the contents of which are incorporated herein by reference in their entirety. TECHNICAL FIELD

[0002] The present application relates to the technical field of heat exchange equipment, in particular to a heat storage device and a heating and ventilation system. BACKGROUND

[0003] At present, the water temperature in the independent hot water tank is generally maintained between 0 and 100℃. In this range, the water will not undergo a phase change from solid to liquid or from gas to liquid. The water temperature in this temperature range shows a linear characteristic. During the heating or cooling process of the hot water tank, the water in the hot water tank will cause natural convection due to the temperature difference, which helps to achieve uniform water temperature in the tank. Therefore, by pasting a temperature sensor on the inner wall of the hot water tank or using a single-point temperature sensing blind tube, the water temperature can be accurately measured, and the installation and positioning of the sensor are not high.

[0004] However, the phase change material used in the heat storage device will change between solid and liquid or liquid and gas, resulting in a large temperature difference between different positions of the phase change material in the tank. If the installation position of the temperature sensor is not stable or appropriate, it is difficult to accurately monitor the temperature change of the phase change material at different positions, which will seriously affect the temperature collection accuracy and the accuracy of the logic control of the entire device. SUMMARY

[0005] The present application provides a heat storage device and a heating and ventilation system, which can solve the technical problem that the installation position of the temperature sensor is not stable, making it difficult to accurately monitor the temperature change of the phase change material at different positions.

[0006] In a first aspect, the present application provides a heat storage device, which includes a shell, a heat exchange module and a phase change material, and at least one temperature sensing assembly. The heat exchange module is embedded in the phase change material and is in thermal conduction with the phase change material. The temperature sensing assembly is inserted into the phase change material to a preset depth.

[0007] In some embodiments, the temperature sensing assembly includes a support plate, a blind tube and a temperature sensing probe. The support plate is configured to be arranged on the heat exchange module. The blind tube is installed on the support plate and configured to extend into the phase change material.

[0008] In some embodiments, an inner wall surface of the blind pipe is provided with a positioning structure, the temperature sensing probe is arranged inside the blind pipe, and the temperature sensing probe cooperates with the positioning structure to define the preset depth of the temperature sensing probe inserted into the phase change material.

[0009] In some embodiments, the positioning structure includes positioning protrusions arranged on the inner wall surface of the blind pipe, and the temperature sensing probe is clamped or abuts against the positioning protrusions.

[0010] In some embodiments, the positioning protrusions are arranged in a circle along the circumference of the blind pipe; or a plurality of the positioning protrusions are arranged in sequence and spaced apart along the circumference of the blind pipe.

[0011] In some embodiments, the temperature sensing probe further includes a sensor wire body partially inserted into the blind pipe and connected with the temperature sensing probe.

[0012] In some embodiments, an outer wall surface of the sensor wire body is provided with an in-place indicating part, and when the temperature sensing probe cooperates with the positioning structure, the in-place indicating part is located at the pipe opening of the blind pipe.

[0013] In some embodiments, the temperature sensing probe further includes a connector arranged at the pipe opening of the blind pipe, the sensor wire body is arranged through the connector and inserted into the blind pipe, and the connector is configured to lock or release the sensor wire body.

[0014] In some embodiments, the connector includes a base connected to the pipe opening of the blind pipe and provided with a first through hole in communication with the blind pipe, and a fastening head threadedly cooperating with the base and provided with a second through hole in communication with the first through hole.

[0015] In some embodiments, the sensor wire body is arranged through the second through hole and the first through hole in sequence and inserted into the blind pipe, and the sensor wire body is locked or released by rotating the fastening head relative to the base.

[0016] In some embodiments, the temperature sensing assembly further includes a sealing member arranged between the sensor wire body and the blind pipe to seal the gap between the sensor wire body and the blind pipe.

[0017] In some embodiments, the temperature sensing assembly further includes heat conducting oil arranged inside the blind pipe, and the heat conducting oil immerses the temperature sensing probe.

[0018] In some embodiments, the heat storage device comprises at least two temperature sensing assemblies, one of which is inserted into the phase change material at a first preset depth, and the other of which is inserted into the phase change material at a second preset depth.

[0019] In some embodiments, the heat exchange module comprises a plurality of sub-heat exchangers, which are arranged in parallel and spaced apart in a first direction, and the phase change material is arranged in the gaps between adjacent sub-heat exchangers, and the temperature sensing assembly is inserted into the phase change material between adjacent sub-heat exchangers.

[0020] In some embodiments, the heat storage device further comprises a sensor mounting plate, which is fixedly arranged on the top of the sub-heat exchanger, and the temperature sensing assembly is arranged on the sensor mounting plate.

[0021] In some embodiments, the heat storage device further comprises a pipeline structure, which comprises a manifold and a delivery pipe, a plurality of manifolds are arranged on the top of the heat exchange module, and a plurality of delivery pipes are in communication with a plurality of sub-heat exchangers, the sensor mounting plate is arranged between the manifold and the sub-heat exchanger, and the temperature sensing assembly is arranged on the side of the manifold.

[0022] In some embodiments, the heat storage device further comprises a manifold fixing member, which is arranged on the top of the sub-heat exchanger.

[0023] In some embodiments, the manifold fixing member is provided with a plurality of mounting holes, and a plurality of manifolds are arranged in the mounting holes, so that there is a gap between the manifold and the sub-heat exchanger, and the sensor mounting plate is arranged in the gap between the manifold and the sub-heat exchanger.

[0024] In some embodiments, the pipeline structure further comprises a plurality of three-way pipes, one end of each three-way pipe is in communication with a delivery pipe, and the other two ends of each three-way pipe are in communication with two sub-heat exchangers.

[0025] In some embodiments, the heat storage device comprises a plurality of temperature sensing assemblies, and each temperature sensing assembly is inserted into the phase change material between adjacent sub-heat exchangers.

[0026] In some embodiments, the sub-heat exchanger comprises a heat exchange body and a side plate, the heat exchange body is provided with the side plate on one side in a second direction, the second direction is arranged transversely to the first direction, and the temperature sensing assembly is arranged on the side plate.

[0027] In some embodiments, the heat storage device further comprises a gap holder connected to the side plates of the plurality of sub-heat exchangers, so that the plurality of sub-heat exchangers are arranged in sequence and spaced apart along the first direction, and the temperature sensing assembly is arranged on the gap holder.

[0028] In some embodiments, the gap holder comprises:

[0029] a first connecting member arranged at the bottom of the sub-heat exchanger, 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 spaced apart along the first direction, and the first fixing portions are connected to the bottom of the corresponding side plate; and / or,

[0030] a second connecting member arranged at the top of the sub-heat exchanger, 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 spaced apart along the first direction, and the second fixing portions are connected to the top of the corresponding side plate, and the temperature sensing assembly is arranged on the second plate body.

[0031] In some embodiments, the heat storage device further comprises a protection member arranged at the bottom of the plurality of sub-heat exchangers.

[0032] In some embodiments, the protection member covers the gap holder and is connected to the bottom of the plurality of side plates, respectively.

[0033] In some embodiments, the shell comprises an outer shell and an inner shell, the inner shell is arranged in the outer shell, and the inside of the inner shell is provided with the heat exchange module and the phase change material; in some embodiments, the top of the inner shell is provided with a wire arrangement port and a pipe outlet; wherein the temperature sensing assembly comprises a temperature sensing probe and a wiring terminal connected to the temperature sensing probe, the temperature sensing probe is arranged in the phase change material, the wiring terminal extends out of the inner shell from the wire arrangement port, and the pipe outlet is configured to extend out of the pipe connected to the heat exchange module.

[0034] In some embodiments, an installation space is formed between the inner shell and the outer shell, the installation space is located above the inner shell, the wiring terminal is located in the installation space, the outer shell is provided with a wire passing hole in communication with the installation space, and the wire passing hole is configured to insert an external wire into the installation space to be connected to the wiring terminal.

[0035] In some embodiments, the outer shell is further provided with a pipe passing hole in communication with the installation space, and the pipe passing hole is configured to extend out of the pipe connected to the heat exchange module.

[0036] In some embodiments, the outer shell comprises a plurality of outer side covers, an outer top cover and an outer bottom plate, the plurality of outer side covers are sequentially arranged around the inner shell and connected to each other, the outer top cover is connected to the top of the plurality of outer side covers, and the outer bottom plate is connected to the bottom of the plurality of outer side covers.

[0037] The shell further comprises a fixing member and a hanging portion, the fixing member is arranged on the top of the inner shell, and the hanging portion is arranged on the side of the outer side cover facing the inner shell, and the hanging portion is clamped with the fixing member.

[0038] In some embodiments, the side edge of the outer side cover is provided with a bending portion, and two bending portions arranged adjacently on one of the outer side covers form a right angle portion, and two bending portions arranged adjacently on the other of the outer side covers have a gap therebetween and form a fitting groove, and the right angle portion is installed in the fitting groove.

[0039] In some embodiments, the bending portion is further provided with a folding portion, and the outer side cover is provided with a side fixing hole, and the folding portion is arranged opposite to the side fixing hole.

[0040] In some embodiments, the outer bottom plate is provided with an outer supporting leg.

[0041] In some embodiments, the shell further comprises a heat preservation structure, the heat preservation structure is arranged between the inner shell and the outer shell, and covers the outer wall surface of the inner shell.

[0042] In some embodiments, a part of the fixing member is arranged between the heat preservation structure and the inner shell, and the other part of the fixing member protrudes out of the heat preservation structure and is clamped with the hanging portion.

[0043] In some embodiments, the fixing member comprises an inner connecting portion, an intermediate portion and an outer connecting portion which are sequentially connected, the inner connecting portion is arranged between the heat preservation structure and the top of the inner shell and connected to the inner shell, the intermediate portion is connected to the inner connecting portion at an angle, and the intermediate portion penetrates into the heat preservation structure, the outer connecting portion is connected to the intermediate portion at an angle, and the outer connecting portion protrudes out of the heat preservation structure and is clamped with the hanging portion.

[0044] In some embodiments, the heat preservation structure covering the top of the inner shell is provided with a plurality of avoiding holes, a part of the avoiding holes are configured to allow the wiring terminal to protrude out, and the other part of the avoiding holes are configured to allow the pipeline connected to the heat exchange module to protrude out.

[0045] In some embodiments, the heat preservation structure comprises a first heat preservation layer and a second heat preservation layer, the first heat preservation layer is arranged on the outer wall surface of the inner shell, and the second heat preservation layer is arranged on the side surface of the first heat preservation layer away from the inner shell.

[0046] In some embodiments, the first heat preservation layer and the second heat preservation layer at the top of the inner shell are provided with the avoiding holes.

[0047] In some embodiments, the avoiding holes on the first heat preservation layer and the avoiding holes on the second heat preservation layer are coaxially arranged.

[0048] In some embodiments, the bottom of the inner shell is provided with a plurality of inner supporting feet, and two of the inner supporting feet define a placing space configured to accommodate the heat preservation structure.

[0049] In some embodiments, the circumferential side wall of the inner shell is provided with a reinforcing rib arranged in a circle along the circumference of the inner shell.

[0050] In some embodiments, the circumferential side wall of the inner shell is provided with at least two reinforcing ribs, and the two reinforcing ribs are arranged in a spaced manner in the up-down direction.

[0051] In some embodiments, the temperature sensing assembly is mounted on the top of the inner shell.

[0052] In a second aspect, the embodiments of the present application provide a heating and ventilation system, which comprises a heat source unit, a water utilization unit, and a heat storage device as described above, the heat exchange module comprises a charging flow path and a discharging flow path, the heat source unit is connected with the charging flow path to form a charging circuit, the water utilization unit is connected with the discharging flow path to form a discharging circuit, and the heat storage device comprises at least two temperature sensing assemblies, one of the temperature sensing assemblies is configured to detect a first temperature at a first preset depth in the phase change material, and another of the temperature sensing assemblies is configured to detect a second temperature at a second preset depth in the phase change material, and the first preset depth is closer to the upstream of the heat storage device than the second preset depth.

[0053] In some embodiments, the heating and ventilation system comprises a control module connected with the heat source unit, and the control module is configured to control the opening or closing of the charging circuit according to the first temperature and the second temperature.

[0054] In some embodiments, the control module is provided with a temperature threshold value, when the first temperature is less than the temperature threshold value, the control module controls the charging circuit to be opened, and in some embodiments, when the second temperature is greater than the temperature threshold value, the control module controls the charging circuit to be closed.

[0055] In some embodiments, the heat source unit comprises:

[0056] a main heat source unit, in communication with the charging flow path, the main heat source unit comprising at least one of a solar heat collection module, a water source heat exchange module, and an air source heat exchange module; and

[0057] a secondary heat source unit, in communication with the charging flow path, the secondary heat source unit comprising an electric heating module.

[0058] In some embodiments, the heating and ventilation system further comprises a second utilization unit, the heat source unit being in communication with the second utilization unit through a heat transfer pipeline, the heat transfer pipeline being in parallel with the charging flow path.

[0059] In some embodiments, the heating and ventilation system has:

[0060] a first working mode, when the heating and ventilation system is in the first working mode, the heat source unit provides heat for the first utilization unit; and

[0061] a second working mode, when the heating and ventilation system is in the second working mode, the heat source unit provides heat for the second utilization unit. BRIEF DESCRIPTION OF DRAWINGS

[0062] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or prior art description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor on the basis of these drawings.

[0063] Fig. 1 is a structural schematic diagram of a heat storage device provided by an embodiment of the present application, which is internally provided with a temperature sensing assembly;

[0064] Fig. 2 is a structural schematic diagram of a heat storage device provided by an embodiment of the present application, which is internally provided with a heat exchange module;

[0065] Fig. 3 is a structural schematic diagram of a heat exchange module from a first perspective provided by an embodiment of the present application;

[0066] Fig. 4 is a structural schematic diagram of a temperature sensing assembly provided by an embodiment of the present application;

[0067] Fig. 5 is a sectional structural schematic diagram of B-B in Fig. 4;

[0068] Fig. 6 is an enlarged structural schematic diagram of C in Fig. 5;

[0069] Fig. 7 is an enlarged structural schematic diagram of D in Fig. 6;

[0070] Fig. 8 is a front view of a heat exchange module according to an embodiment of the application;

[0071] Fig. 9 is a sectional view of the structure at A-A in Fig. 3;

[0072] Fig. 10 is a structure schematic view of a heat exchange module according to an embodiment of the application from a second perspective;

[0073] Fig. 11 is a structure schematic view of a plurality of temperature sensing assemblies mounted on a sensor mounting plate according to an embodiment of the application;

[0074] Fig. 12 is a structure schematic view of a heat exchange module according to an embodiment of the application from a third perspective;

[0075] Fig. 13 is a split structure schematic view of a manifold fixing member according to an embodiment of the application;

[0076] Fig. 14 is a three-dimensional structure schematic view of a pipe structure according to an embodiment of the application;

[0077] Fig. 15 is a split structure schematic view of a pipe structure according to an embodiment of the application;

[0078] Fig. 16 is a structure schematic view of a plurality of sub-heat exchangers connected together according to an embodiment of the application;

[0079] Fig. 17 is a split structure schematic view of a plurality of sub-heat exchangers, a first connecting member and a second connecting member according to an embodiment of the application;

[0080] Fig. 18 is a split structure schematic view of a plurality of sub-heat exchangers, a protection member and a first connecting member according to an embodiment of the application;

[0081] Fig. 19 is a three-dimensional structure schematic view of a heat storage device according to an embodiment of the application;

[0082] Fig. 20 is a sectional view of the structure at E-E in Fig. 19;

[0083] Fig. 21 is a three-dimensional structure schematic view of an inner shell according to an embodiment of the application;

[0084] Fig. 22 is a perspective view of a heat storage device according to an embodiment of the application;

[0085] Fig. 23 is an exploded view of a heat storage device according to an embodiment of the application;

[0086] Fig. 24 is a split structure schematic view of a heat preservation structure according to an embodiment of the application;

[0087] Fig. 25 is an enlarged view of the structure at I and J in Fig. 23;

[0088] Fig. 26 is an enlarged view of the structure at K in Fig. 23;

[0089] Fig. 27 is an enlarged view of H in Fig. 20;

[0090] Fig. 28 is an enlarged view of F in Fig. 20;

[0091] Fig. 29 is an enlarged view of G in Fig. 20;

[0092] Fig. 30 is a split structure schematic view of an inner shell provided by an embodiment of the present application;

[0093] Fig. 31 is a structure schematic view of a heating system provided by an embodiment of the present application.

[0094] Explanation of reference signs: 100, heat storage device; 10, temperature sensing assembly; 1, support plate; 11, assembly hole; 2, blind pipe; 21, positioning structure; 211, positioning protrusion; 3, temperature sensing detector; 31, temperature sensing probe; 32, sensor wire body; 321, in-position indicating part; 33, joint piece; 331, base; 3310, first through hole; 332, fastening head; 3320, second through hole; 34, wiring terminal; 4, sealing piece; 20, heat exchange module; 201, sub heat exchanger; 2011, heat exchange main body; 2012, side plate; 202, charging flow path; 203, discharging flow path; 30, pipeline structure; 301, header; 3011, charging inlet; 3012, charging outlet; 3013, discharging inlet; 3014, discharging outlet; 302, conveying pipe; 303, tee joint pipe; 304, main pipe; 305, collecting pipe; 306, joint pipe; 307, joint pipe nut; 40, sensor mounting plate; 401, containing hole; 50, phase change material; 60, shell; 601, outer shell; 6010, pipe passing hole; 6011, outer side cover; 6012, outer top cover; 6013, outer bottom disc; 6014, bending part; 6015, right-angle part; 6016, assembly groove; 6017, folded part; 6018, side fixing hole; 6019, outer support leg; 6020, wire passing hole; 602, inner shell; 6021, containing cavity; 6022, pipe outlet; 6023, inner support leg; 6024, reinforcing rib; 6025, wire arrangement opening; 603, heat preservation structure; 6030, avoiding hole; 6031, first heat preservation layer; 6032, second heat preservation layer; 604, hanging joint part; 605, fixing piece; 6051, inner connecting part; 6052, intermediate part; 6053, outer connecting part; 6001, mounting space; 70, header fixing piece; 700, mounting hole; 701, first fixing plate; 7011, first fixing hole; 7012, clamping piece; 702, second fixing plate; 80, protection component; 801, protection plate; 802, second fixing hole; 803, clearance hole; 90, gap maintainer; 901, first connecting piece; 9011, first plate body; 9012, first fixing part; 902, second connecting piece; 9021, second plate body; 9022, second fixing part; 200, heating and ventilation system; 300, heat source module; 400, first utilization unit; 500, second utilization unit. DETAILED DESCRIPTION

[0095] In order to make the objectives, technical solutions and advantages of the present application clearer, the present application is further described in detail below in conjunction with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and do not limit the present application.

[0096] Please refer to FIG. 1 to FIG. 3, a heat storage device 100 provided by the embodiment of the present application, the heat storage device 100 is mainly configured to store heat, and is configured to be a device for heat exchange, the heat storage device 100 includes a shell 60, a heat exchange module 20, a phase change material 50 and at least one temperature sensing assembly 10.

[0097] In some embodiments, the shape of the shell 60 is a cubic structure, and the inside of the shell 60 is formed with a containing cavity 6021, the heat exchange module 20 and the phase change material 50 are both arranged in the containing cavity 6021, the heat exchange module 20 is embedded in the phase change material 50, it is necessary to explain that the heat exchange module 20 includes a plurality of sub-heat exchangers 201, there is a gap between two adjacent sub-heat exchangers 201, and the phase change material 50 can be filled in the gap, so that the heat exchange module 20 can be in full contact with the phase change material 50, so that the heat exchange module 20 can be in thermal conduction with the phase change material 50, that is, so that the heat exchange module 20 can exchange heat with the phase change material 50.

[0098] The temperature sensing assembly 10 can be inserted into the phase change material 50 to a preset depth, so that the temperature sensing assembly 10 can detect the temperature of the phase change material 50 at the preset depth, therefore, by inserting the temperature sensing assembly 10 into the phase change material 50 to the preset depth, the temperature change of the phase change material 50 in the specified area inside the heat storage device 100 can be accurately monitored.

[0099] Please refer to FIG. 3 and FIG. 4, in some embodiments, the temperature sensing assembly 10 can include a support plate 1, a blind pipe 2 and a temperature sensing probe 3.

[0100] In some embodiments, the support plate 1 is a square plate, the support plate 1 can be fixed to the heat exchange module 20 by threaded connection or welding, and the support plate 1 has an assembly hole 11 (see FIG. 7).

[0101] The blind pipe 2 is a hollow pipe, one end of the blind pipe 2 is an open end, the other end of the blind pipe 2 is a closed end, the blind pipe 2 can be inserted into the assembly hole 11, so that the closed end of the blind pipe 2 extends into the heat exchange module 20, and the open end of the blind pipe 2 can be connected with the support plate 1, so that the blind pipe 2 can be accurately installed at a specified position in the heat exchange module 20 through the support plate 1.

[0102] In combination with FIG. 5 and FIG. 6, the inner wall surface of the blind pipe 2 can also be provided with a positioning structure 21, the temperature sensing probe 3 can include a temperature sensing probe head 31, the temperature sensing probe head 31 can be arranged inside the blind pipe 2, and the temperature sensing probe head 31 can cooperate with the positioning structure 21 to limit the depth of the temperature sensing probe head 31 extending into the blind pipe 2, or to limit the depth of the temperature sensing probe head 31 extending into the heat exchange module 20, so that the temperature sensing probe head 31 can be stably installed at a specified position in the heat exchange module 20, thereby the temperature change of the phase change material in the specified area of the heat exchange module 20 can be accurately monitored.

[0103] Referring to FIG. 6, in some embodiments, the positioning structure 21 can include positioning protrusions 211 arranged on the inner wall surface of the blind pipe 2, and the temperature sensing probe 31 can be clamped or abutted with the positioning protrusions 211.

[0104] In some embodiments, the inner wall surface of the blind pipe 2 can protrude to one side of the axis of the blind pipe 2 to form the positioning protrusions 211. When installing the temperature sensing detector 3, the temperature sensing probe 31 is inserted into the pipe body of the blind pipe 2 from the pipe opening of the blind pipe 2. As the temperature sensing probe 31 gradually extends, the temperature sensing probe 31 can be clamped or abutted with the positioning protrusions 211. The positioning protrusions 211 can prevent the temperature sensing probe 31 from continuing to extend into the blind pipe 2, thereby fixing the temperature sensing probe 31 at a specified position in the blind pipe 2. Since the blind pipe 2 is fixedly installed on the heat exchange module 20, the temperature sensing probe 31 can be fixed at a specified position of the heat exchange module 20, so that the temperature sensing probe 31 can be configured to detect the temperature of the phase change material in the specified area. By arranging the positioning protrusions 211 on the inner wall surface of the blind pipe 2, the temperature sensing probe 31 can be conveniently positioned at the specified position.

[0105] In some embodiments, the positioning protrusions 211 are arranged in a circle along the circumference of the blind pipe 2, so that a circular ring-shaped protrusion is formed on the inner wall surface of the blind pipe 2. When the temperature sensing probe 31 is arranged in the blind pipe 2, the lower end of the temperature sensing probe 31 can be inserted into the circular ring-shaped protrusion and abutted with the circular ring-shaped protrusion, thereby positioning the temperature sensing probe 31 at the position where the positioning protrusions 211 are arranged.

[0106] In some embodiments, the inner wall surface of the blind pipe 2 can be provided with a plurality of positioning protrusions 211. The plurality of positioning protrusions 211 can be sequentially and spacedly arranged along the circumference of the blind pipe 2. Adjacent two positioning protrusions 211 can form a clamping groove. When the temperature sensing probe 31 is arranged in the blind pipe 2, the temperature sensing probe 31 can be clamped with the clamping groove, thereby positioning the temperature sensing probe 31 at the position where the positioning protrusions 211 are arranged.

[0107] Referring to FIGS. 5 to 7, in some embodiments, the temperature sensing detector 3 can further include a sensor wire body 32. The sensor wire body 32 is partially inserted into the blind pipe 2 and connected with the temperature sensing probe 31. The outer wall surface of the sensor wire body 32 is provided with a position indicating part 321. When the temperature sensing probe 31 cooperates with the positioning structure 21, the position indicating part 321 is located at the pipe opening of the blind pipe 2.

[0108] Specifically, the sensor wire body 32 usually includes a wire and can be connected with the temperature sensing probe 31 and configured to transmit the temperature signal detected by the temperature sensing probe 31. The sensor wire body 32 is partially inserted into the blind pipe 2. At this time, the blind pipe 2 can also play a role in regularizing the sensor wire body 32, preventing the sensor wire body 32 from swinging.

[0109] In some embodiments, the outer wall surface of the sensor line body 32 can be provided with a position indication part 321, which can be arranged to extend along the length direction of the sensor line body 32, and the length of the sensor line body 32 between the position indication part 321 and the temperature sensing probe 31 can be adjusted flexibly according to the distance between the pipe opening of the blind pipe 2 and the positioning structure 21, so that when the temperature sensing detector 3 is installed, the installation state of the temperature sensing probe 31 can be judged by observing the position of the position indication part 321.

[0110] Specifically, when the temperature sensing detector 3 is installed, the temperature sensing probe 31 can be inserted into the blind pipe 2 first, and then the sensor line body 32 is gradually inserted into the blind pipe 2 to drive the temperature sensing probe 31 to further extend into the blind pipe 2 until the sensor line body 32 cannot continue to extend into the blind pipe 2, at which time whether the temperature sensing probe 31 is installed in place can be judged according to the positional relationship between the position indication part 321 and the blind pipe 2.

[0111] More specifically, if the position indication part 321 is located at the pipe opening of the blind pipe 2 at this time, it indicates that the temperature sensing probe 31 has successfully cooperated with the positioning structure 21, and the temperature sensing probe 31 has been installed in place; if there is still a distance between the position indication part 321 and the pipe opening of the blind pipe 2 at this time, it indicates that the temperature sensing probe 31 may be stuck somewhere in the blind pipe 2, but has not extended into the positioning structure 21, and the temperature sensing probe 31 has not been installed in place; if the position indication part 321 has extended into the inside of the blind pipe 2 at this time, it indicates that the positioning structure 21 may have been damaged and cannot limit the temperature sensing probe 31, and the temperature sensing probe 31 has not been installed in place.

[0112] Therefore, by observing the positional relationship between the position indication part 321 and the pipe opening of the blind pipe 2, it can be quickly and accurately judged whether the temperature sensing probe 31 is installed in place.

[0113] In some embodiments, the position indication part 321 is a mark or feature, for example, the position indication part 321 can be a color mark, a protrusion, a groove or other forms of marks.

[0114] Please refer to FIG. 4 and FIG. 5, in some embodiments, the temperature sensing detector 3 can further include a joint piece 33, which is arranged at the pipe opening of the blind pipe 2, the sensor line body 32 is arranged through the joint piece 33 and inserted into the blind pipe 2, and the joint piece 33 is configured to lock or loosen the sensor line body 32.

[0115] In some embodiments, the joint member 33 is installed at the pipe opening of the blind pipe 2. When the temperature sensor 3 is installed, the sensor wire 32 passes through the joint member 33 and is inserted into the blind pipe 2 until the temperature sensor head 31 is engaged with the positioning structure 21. At this time, the joint member 33 can be locked, and the sensor wire 32 is fixed when the joint member 33 is locked, preventing the sensor wire 32 from loosening or moving in the blind pipe 2, so that the temperature sensor head 31 can be stably fixed in the blind pipe 2 and accurately monitor the temperature change of the phase change material. When the temperature sensor head 31 needs to be maintained or replaced, the joint member 33 is simply loosened, and the sensor wire 32 can be easily pulled out of the blind pipe 2 without complex disassembly operations.

[0116] Referring to FIG. 7, in some embodiments, the joint member 33 can include a base 331 connected to the pipe opening of the blind pipe 2 and a fastening head 332 threadedly engaged with the base 331. The sensor wire 32 can pass through the fastening head 332 and the base 331 in sequence, and the sensor wire 32 can be easily locked or loosened by rotating the fastening head 332 relative to the base 331 to lock or loosen the sensor wire 32.

[0117] Specifically, the base 331 can have a size and shape matched with the blind pipe 2, so that the two can be stably connected together, and the base 331 can also be connected with the support plate 1, so that the blind pipe 2, the base 331 and the support plate 1 can be connected together. The base 331 can be provided with a first through hole 3310, which can be in communication with the blind pipe 2.

[0118] The fastening head 332 is provided with a second through hole 3320 coaxially arranged with the first through hole 3310 and connected with the first through hole 3310, so that the sensor wire 32 can pass through the second through hole 3320 and the first through hole 3310 in sequence and be inserted into the blind pipe 2.

[0119] Rotating the fastening head 332 relative to the base 331 can cause the fastening head 332 and the base 331 to produce a threaded feeding or withdrawing action, and the fastening head 332 can lock or loosen the sensor wire 32. More specifically, when the fastening head 332 is tightened, the fastening head 332 approaches the base 331, and the fastening head 332 and the base 331 generate sufficient friction after being engaged, thereby firmly locking the sensor wire 32 in the blind pipe 2. Conversely, when the sensor wire 32 needs to be loosened, the fastening head 332 can be rotated in the opposite direction.

[0120] In some embodiments, the temperature sensing assembly 10 can further comprise a heat conducting oil, which is a special lubricating oil used at high temperatures. The heat conducting oil can be disposed inside the blind tube 2 and can immerse the temperature sensing probe 31. By filling the blind tube 2 with the heat conducting oil, the air gap between the temperature sensing probe 31 and the phase change material can be eliminated, thereby improving the heat transfer effect between the temperature sensing probe 31 and the phase change material, accelerating the response speed of the temperature sensing probe 31 to temperature changes, and improving the accuracy of the measurement.

[0121] In combination with FIG. 7, in some embodiments, the temperature sensing assembly 10 can further comprise a sealing member 4, which can be disposed between the sensor wire 32 and the blind tube 2 to seal the gap between the sensor wire 32 and the blind tube 2.

[0122] Specifically, the sealing member 4 is a component configured to fill or seal the gap between two objects, usually made of rubber, plastic or other elastic materials. The sealing member 4 can increase the air tightness of the blind tube 2 at the pipe opening, prevent the heat conducting oil inside the blind tube 2 from evaporating into the external environment through the pipe opening, improve the stability of the heat conducting oil inside the blind tube 2, thereby increasing the measurement accuracy of the temperature sensing probe 31, and also prevent external air, moisture or other impurities from entering the inside of the blind tube 2, thereby protecting the temperature sensing probe 31 from damage.

[0123] Referring to FIGS. 8 and 9, in some embodiments, the heat storage device 100 can comprise at least two temperature sensing assemblies 10. Taking the heat storage device 100 comprising two temperature sensing assemblies 10 as an example, one temperature sensing assembly 10 can be inserted into the phase change material 50 at a first preset depth to detect the temperature of the phase change material 50 at the first preset depth, and the other temperature sensing assembly 10 can be inserted into the phase change material 50 at a second preset depth to detect the temperature of the phase change material 50 at the second preset depth.

[0124] In some embodiments, the first preset depth can be close to the top of the phase change material 50, configured to monitor the temperature changes near the heat source area, and the second preset depth can be different from the first preset depth and can be located at the middle or deeper position of the phase change material 50. Through such an arrangement, the temperature conditions of a wider area inside the phase change material 50, especially in the area where the temperature gradient can be large during heat conduction, can be monitored. Therefore, by arranging the temperature sensing assemblies 10 at different depths, temperature data at multiple levels inside the phase change material 50 can be obtained, thereby improving the monitoring accuracy of the temperature changes during the entire heat storage process.

[0125] Referring to FIG. 10, in some embodiments, the heat exchange module 20 can include a plurality of sub-heat exchangers 201, which can be arranged in parallel and spaced apart in sequence along a first direction, and the X-axis direction in FIG. 10 is the first direction. Such an arrangement helps to optimize heat exchange efficiency, facilitates installation and maintenance, and has a gap between adjacent two sub-heat exchangers 201. The phase change material 50 can be filled in the gap between the adjacent two sub-heat exchangers 201, and the temperature sensing assembly 10 can be inserted into the phase change material 50 between the adjacent two sub-heat exchangers 201 to detect the temperature of the phase change material 50 between the adjacent two sub-heat exchangers 201. At the same time, due to the change of the phase of the phase change material 50 during the heat storage and release process, such as the change from liquid to solid or from solid to liquid, the expansion and contraction of the phase change material 50 caused by the phase change of the phase change material 50 will cause the temperature sensing probe 31 of the temperature sensing assembly 10 to deviate from its original position. Therefore, by inserting the temperature sensing assembly 10 into the gap between the adjacent two sub-heat exchangers 201, the influence of the phase change of the phase change material 50 on the detection position accuracy of the temperature sensing assembly 10 can be alleviated, and the reliability of temperature detection is improved.

[0126] In some embodiments, the sub-heat exchanger 201 is usually a tube-fin heat exchanger, which improves the heat transfer capacity by adding heat transfer fins on the heat exchange tube.

[0127] Referring to FIGS. 10 and 11, in some embodiments, the heat storage device 100 can further include a sensor mounting plate 40, which can be fixedly arranged on the top of the sub-heat exchanger 201, and a plurality of temperature sensing assemblies 10 can be arranged on the sensor mounting plate 40.

[0128] In some embodiments, the sensor mounting plate 40 is provided with a plurality of accommodating holes 401, which are arranged in sequence and spaced apart along a second direction, and the Y-axis direction in FIG. 10 is the second direction. The second direction is arranged intersecting the first direction, and each accommodating hole 401 is arranged corresponding to the gap between the adjacent two sub-heat exchangers 201. When the temperature sensing assembly 10 is inserted into the accommodating hole 401, the temperature sensing assembly 10 can extend into the gap between the adjacent two sub-heat exchangers 201, so that the temperature sensing assembly 10 can measure the temperature of the phase change material 50 between the adjacent two sub-heat exchangers 201. Therefore, by arranging the sensor mounting plate 40, the plurality of temperature sensing assemblies 10 can be conveniently installed at the specified positions, so that the plurality of temperature sensing assemblies 10 can accurately monitor the temperature change of the phase change material 50 at each position.

[0129] Referring to FIG. 12, in some embodiments, the heat storage device 100 can further include a pipeline structure 30, which can be connected to each sub-heat exchanger 201 to transport fluid to each sub-heat exchanger 201, so as to realize heat exchange and transfer.

[0130] The pipeline structure 30 comprises a manifold 301 and a delivery pipe 302, a plurality of manifolds 301 can be arranged at the top of the sub-heat exchanger 201, and the manifold 301 is a multi-conduit structure, the manifold 301 has a plurality of ports, one end of the delivery pipe 302 communicates with the sub-heat exchanger 201, and the other end of the delivery pipe 302 communicates with the manifold 301, so that the manifold 301 can collect fluid from each sub-heat exchanger 201, and the fluid is delivered to each sub-heat exchanger 201 through the delivery pipe 302 to realize heat exchange.

[0131] In some embodiments, the pipeline structure 30 comprises four manifolds 301, each of which has a charging inlet 3011, a charging outlet 3012, a discharging inlet 3013, and a discharging outlet 3014, and the sub-heat exchanger 201 has a charging flow path 202 and a discharging flow path 203, the charging inlet 3011, the charging flow path 202, and the charging outlet 3022 are sequentially communicated, and the discharging inlet 3013, the discharging flow path 203, and the discharging outlet 3014 are sequentially communicated.

[0132] Specifically, the delivery pipe 302 comprises an input pipe and an output pipe, each sub-heat exchanger 201 is connected to the corresponding manifold 301 through a set of input pipes and output pipes to form the charging flow path 202 and the discharging flow path 203, and the main function of the input pipe and the output pipe is to deliver fluid from the manifold 301 to the sub-heat exchanger 201, and deliver the fluid after heat exchange from the sub-heat exchanger 201 to the manifold 301.

[0133] More specifically, each sub-heat exchanger 201 is connected to the corresponding manifold 301 through one or more input pipes, and the input pipe is responsible for delivering fluid from the manifold 301 to each sub-heat exchanger 201, so that the fluid can be evenly distributed to each sub-heat exchanger 201. Similarly, each sub-heat exchanger 201 is connected to the corresponding manifold 301 through one or more output pipes, and the output pipe is responsible for delivering the fluid after heat exchange from the sub-heat exchanger 201 to the manifold 301, so as to collect and deliver the fluid back to the manifold 301 for further processing or recycling.

[0134] In combination with FIG. 2, the manifold 301 comprises a main pipe 304, a collecting pipe 305, a joint pipe 306, and a joint pipe nut 307, the main pipe 304 communicates with one end of the collecting pipe 305, one end of the joint pipe 306 communicates with the other end of the collecting pipe 305, the other end of the joint pipe 306 is connected with the joint pipe nut 307, and the radial dimension of the end of the joint pipe 306 communicating with the collecting pipe 305 is smaller than the radial dimension of the end of the joint pipe 306 connected with the joint pipe nut 307.

[0135] It should be noted that, since the radial dimension of the connecting nut 307 is relatively large, if the connecting nut 307 is directly connected with one end of the collecting pipe 305, the radial dimension of the collecting pipe 305 will also be relatively large, but the radial dimension of the part where the collecting pipe 305 communicates with the main pipe 304 should not be too large. Therefore, the joint pipe 306 with different radial dimensions at two ends is arranged to connect the collecting pipe 305 and the connecting nut 307, so that the connecting nut 307 can be connected, and the size of the collecting pipe 305 is smaller than that of the connecting nut 307.

[0136] As shown in FIG. 10, the collecting pipe 301 has a gap with the top of the sub heat exchanger 201, the sensor mounting plate 40 can be arranged between the collecting pipe 301 and the sub heat exchanger 201, and the temperature sensing assembly 10 is located at the side of the collecting pipe 301, so that the space can be fully utilized to install the temperature sensing assembly 10.

[0137] As shown in FIG. 12, in some embodiments, the pipeline structure 30 can further include a collecting pipe fixing member 70, the collecting pipe fixing member 70 can be mounted on the top of the sub heat exchanger 201, and the collecting pipe fixing member 70 is provided with a plurality of mounting holes 700, and a plurality of collecting pipes 301 are arranged in the plurality of mounting holes 700, so that the collecting pipe 301 has a gap with the top of the sub heat exchanger 201, and the sensor mounting plate 40 can be arranged in the gap between the collecting pipe 301 and the sub heat exchanger 201.

[0138] As shown in FIG. 13, specifically, the collecting pipe fixing member 70 can include a first fixing plate 701 and a second fixing plate 702, the first fixing plate 701 can be connected with the top of one of the sub heat exchangers 201 located at the outermost edge of the plurality of sub heat exchangers 201, the first fixing plate 701 is provided with a plurality of first avoiding grooves, the plurality of first avoiding grooves can be arranged at intervals along the second direction, and one end of the collecting pipe 301 can be arranged in the first avoiding groove, the second fixing plate 702 can be connected with the first fixing plate 701, and the second fixing plate 702 is provided with a plurality of second avoiding grooves, the plurality of second avoiding grooves can be arranged at intervals along the second direction, and the plurality of second avoiding grooves can be arranged one by one corresponding to the plurality of first avoiding grooves, and the second avoiding groove can form a mounting hole 700 together with the corresponding first avoiding groove to accommodate the collecting pipe 301, so that the first fixing plate 701 and the second fixing plate 702 can clamp the collecting pipe 301, thereby fixing the collecting pipe 301 between the first fixing plate 701 and the second fixing plate 702, that is, firmly fixed, and space can be saved.

[0139] In some embodiments, the first fixing plate 701 is provided with a first fixing hole 7011 at opposite ends along the second direction, respectively, and the first fixing plate 701 and the sub heat exchanger 201 can be connected together by inserting a screwing member into the first fixing hole 7011. In some embodiments, the first fixing plate 701 is provided with a first fixing hole 7011 at opposite ends along the second direction, respectively, and the first fixing plate 701 and the sub heat exchanger 201 can be connected together by inserting a screwing member into the first fixing hole 7011.

[0140] In some embodiments, the first fixed plate 701 is provided with a clamping piece 7012 at each of the opposite ends in the second direction, and the sub heat exchanger 201 is provided with a clamping hole at each of the opposite sides in the second direction. The clamping piece 7012 can be clamped with the clamping hole, so that the first fixed plate 701 and the sub heat exchanger 201 are clamped together. When installing the first fixed plate 701, the installer does not need to hold the first fixed plate 701 by hand, but only needs to clamp the first fixed plate 701 with the side plate 2012, which is very convenient to install.

[0141] Please refer to FIG. 12, FIG. 14 and FIG. 15. In some embodiments, the pipeline structure 30 further comprises a plurality of three-way pipes 303. One end of each three-way pipe 303 is connected with one conveying pipe 302, and the other two ends of each three-way pipe 303 are respectively communicated with two sub heat exchangers 201. By arranging the three-way pipes 303, the number of conveying pipes 302 can be reduced, so that there is more free space at the position of the pipeline structure 30, and the free space can facilitate the arrangement of the temperature sensing assembly 10.

[0142] In some embodiments, the three-way pipe 303 has a first connecting hole, a second connecting hole and a third connecting hole. The first connecting hole is communicated with the conveying pipe 302, and the second connecting hole and the third connecting hole are respectively communicated with two sub heat exchangers 201. The axis of the first connecting hole is arranged in the vertical direction, so that when the conveying pipe 302 is communicated with the first connecting hole, the conveying pipe 302 needs to protrude upward by a part and then bend downward to be communicated with the first connecting hole. The protruding part of the conveying pipe 302 can form an avoiding space, which can facilitate the arrangement of the collecting pipe 301. The axes of the second connecting hole and the third connecting hole are arranged in the horizontal direction, so that the second connecting hole and the third connecting hole can be easily communicated with two sub heat exchangers 201. Thus, the number of conveying pipes 302 can be reduced, and the saved space can be configured to install the temperature sensing assembly 10.

[0143] In some embodiments, the heat storage device 100 can comprise a plurality of temperature sensing assemblies 10, and each of the plurality of temperature sensing assemblies 10 can be inserted into the phase change material 50 between two adjacent sub heat exchangers 201. Thus, the temperature of the phase change material 50 at different depths can be accurately measured and monitored.

[0144] In some embodiments, two adjacent sub heat exchangers 201 are arranged as a pair, and a plurality of temperature sensing assemblies 10 can be inserted into the gap between the pair of sub heat exchangers 201, and the plurality of temperature sensing assemblies 10 are uniformly arranged along the depth direction of the phase change material 50 to cover various positions from the surface layer to the deep layer. Thus, the plurality of temperature sensing assemblies 10 can more comprehensively measure the temperature distribution of the phase change material 50 at different depths.

[0145] Referring to FIG. 10, in some embodiments, the sub-heat exchanger 201 can include a heat exchange body 2011 configured to exchange heat with the phase change material 50, and a side plate 2012 provided on each of opposite sides of the heat exchange body 2011 along the second direction, and the temperature sensing assembly 10 can be provided on the side plate 2012, so that the temperature sensing assembly 10 can be installed more firmly.

[0146] In combination with FIGS. 10 and 16, the thermal storage device 100 further includes a gap holder 90, which can be connected with the side plates 2012 of the plurality of sub-heat exchangers 201, so that the plurality of sub-heat exchangers 201 can be arranged in sequence and at intervals along the first direction, and the temperature sensing assembly 10 is provided on the gap holder 90, so that the temperature sensing assembly 10 can be inserted into the gap between adjacent two sub-heat exchangers 201 more smoothly.

[0147] In combination with FIGS. 17 and 18, in some embodiments, the gap holder 90 can include a first connecting piece 901 and a second connecting piece 902.

[0148] Specifically, the first connecting piece 9011 can be provided on the bottom of the sub-heat exchanger 201, and the first connecting piece 9011 can include a first plate body 9011 and a plurality of first fixing portions 9012 provided on the first plate body 9011, the first plate body 9011 can be arranged in extension along the first direction, and the plurality of first fixing portions 9012 can be arranged in sequence and at intervals along the first direction, so that the plurality of first fixing portions 9012 can be arranged in alignment with the plurality of sub-heat exchangers 201 in the same direction, and thus the first fixing portions 9012 can be connected with the bottom of the corresponding side plate 2012, so that the first connecting piece 9011 can connect the bottoms of the plurality of sub-heat exchangers 201 in sequence.

[0149] The second connecting piece 902 can be provided on the top of the sub-heat exchanger 201, and the second connecting piece 902 can include a second plate body 9021 and a plurality of second fixing portions 9022 provided on the second plate body 9021, the second plate body 9021 can also be arranged in extension along the first direction, and the plurality of second fixing portions 9022 can be arranged in sequence and at intervals along the first direction, so that the plurality of second fixing portions 9022 can be arranged in alignment with the plurality of sub-heat exchangers 201 in the same direction, and thus the second fixing portions 9022 can be connected with the top of the corresponding side plate 2012, so that the second connecting piece 902 can connect the tops of the plurality of sub-heat exchangers 201 in sequence.

[0150] Therefore, the plurality of sub heat exchangers 201 can be fixed by the first connecting piece 9011 and the second connecting piece 902, which not only limits the gap between the adjacent two sub heat exchangers 201, but also assembles the plurality of sub heat exchangers 201 into a whole, and by setting the distance between the adjacent two first fixing parts 9012 and the distance between the adjacent two second fixing parts 9022, the gap size between the adjacent two sub heat exchangers 201 can be easily controlled, and the temperature sensing assembly 10 can be conveniently arranged between the adjacent two sub heat exchangers 201.

[0151] In combination with FIGS. 10 and 18, in some embodiments, the heat storage device 100 can further include a protection component 80, which is arranged at the bottom of the plurality of sub heat exchangers 201, and the protection component can also be connected with the bottom of the plurality of edge plates 2012.

[0152] Specifically, two protection components 80 can be arranged at the bottom of the plurality of sub heat exchangers 201, and the two protection components 80 can be arranged at opposite sides of the plurality of sub heat exchangers 201 in the second direction, and the protection components 80 can be respectively connected with the bottom of the plurality of edge plates 2012, so that the protection components 80 can form a protection layer at the bottom of the plurality of sub heat exchangers 201, and the protection components 80 can prevent the bottom of the sub heat exchangers 201 from being damaged by knocking.

[0153] In some embodiments, the protection components 80 can be bent and extended towards the pipeline structure 30 to form a protection layer at the bottom of the pipeline structure 30, which can prevent the pipeline structure 30 from being damaged by knocking, especially reducing the installation risk of the pipeline structure 30 during hoisting.

[0154] In combination with FIG. 18, in some embodiments, the protection component 80 includes a protection plate 801, which is located at the bottom of the sub heat exchanger 201, and the protection plate 801 is connected with the edge plate 2012 of the sub heat exchanger 201.

[0155] In some embodiments, the protection plate 801 is provided with a plurality of second fixing holes 802 and a plurality of clearance holes 803, and the plurality of second fixing holes 802 and the plurality of clearance holes 803 can be arranged one by one, for example, the second fixing hole 802 is a threaded hole, a screw piece can be inserted into the second fixing hole 802 from the clearance hole 803, so that the protection plate 801 is connected with the edge plate 2012, the protection plate 801 wraps the bottom of the pipeline structure 30 to play a protection role, and the clearance hole 803 can facilitate the insertion of the screw piece into the second fixing hole 802, and the installation is more convenient.

[0156] Referring to FIGS. 19-21, in some embodiments, the shell 60 can include an outer shell 601 and an inner shell 602, the inner shell 602 is arranged inside the outer shell 601, and the inner shell 602 has a heat exchange module 20 and a phase change material 50 arranged inside the inner shell 602. The top of the inner shell 602 can be provided with a wire arrangement opening 6025 and a pipe outlet 6022.

[0157] In some embodiments, the shell 60 can include an outer shell 601 and an inner shell 602, the inner shell 602 can be arranged inside the outer shell 601, and the inner shell 602 can have a containing cavity 6021, a plurality of sub-heat exchangers 201 can be arranged in the containing cavity 6021, the containing cavity 6021 has a phase change material 50 arranged therein, the inner shell 602 can form a sealed containing cavity 6021, which can facilitate the plurality of sub-heat exchangers 201 to exchange heat with the phase change material 50 in the containing cavity 6021. The pipe structure 30 is partially arranged in the containing cavity 6021, and the other part of the pipe structure 30 can extend out of the inner shell 602 from the pipe outlet 6022 and be located between the inner shell 602 and the outer shell 601.

[0158] The temperature sensing assembly 10 can include a temperature sensing probe 31 and a wiring terminal 34 connected to the temperature sensing probe 31. The temperature sensing probe 31 can be arranged in the phase change material 50, and the wiring terminal 34 can extend out of the inner shell 602 from the wire arrangement opening 6025, so that the wiring terminal is located between the inner shell 602 and the outer shell 601, which can facilitate the connection between the wiring terminal 34 and the external wiring.

[0159] Referring to FIGS. 22-24, in some embodiments, an installation space 6001 can be formed between the inner shell 602 and the outer shell 601, and the installation space 6001 is located above the inner shell 602, that is, there is a gap between the top of the outer shell 601 and the top of the inner shell 602, which forms the installation space 6001. The wiring terminal 34 can be located in the installation space 6001, and the outer shell 601 is provided with a wire passing hole 6020, which communicates with the installation space 6001, so that the external wire can be inserted into the installation space 6001 from the wire passing hole 6020 to connect with the wiring terminal 34.

[0160] Alternatively, the outer shell 601 is provided with a wire passing hole 6020 on the side surface, and the inner shell 602 is provided with a wire arrangement opening 6025 on the top surface. The wiring terminal 34 can extend out of the wire arrangement opening 6025 into the installation space 6001, and the external wire can extend into the installation space 6001 from the side surface of the outer shell 601 to connect with the wiring terminal 34.

[0161] Please refer to FIG. 22, FIG. 23 to FIG. 25, in some embodiments, the shell 601 is further provided with a pipe hole 6010 which is in communication with the installation space 6001, and part of the pipe structure 30 can be first extended out of the pipe hole 6022, and then extended out of the shell 601 through the pipe hole 6010, and the pipe structure 30 can be conveniently extended out of the shell 601 through the pipe hole 6022 and the pipe hole 6010, and the pipe structure 30 can be conveniently connected with the external pipe.

[0162] Please refer to FIG. 23, in some embodiments, the shell 601 can include a plurality of outer side covers 6011, an outer top cover 6012 and an outer bottom disc 6013, the plurality of outer side covers 6011 can be sequentially arranged on the side of the inner shell 602, and the plurality of outer side covers 6011 are sequentially connected, the outer top cover 6012 is arranged on the top of the plurality of outer side covers 6012, and the top of the plurality of outer side covers 6011 is connected with the outer top cover 6012, and the outer bottom disc 6013 is arranged on the bottom of the plurality of outer side covers 6011, and the bottom of the plurality of outer side covers 6011 is connected with the outer bottom disc 6013, so that the shell 601 can be assembled together.

[0163] In some embodiments, the shell 601 is in the shape of a cube, the shell 601 includes four outer side covers 6011, and the four outer side covers 6011 form a square frame structure, and the outer top cover 6012 and the outer bottom disc 6013 are arranged on the top and the bottom of the plurality of outer side covers 6011, respectively.

[0164] In actual assembly of the shell 601, two outer side covers 6011 are first arranged vertically on the side of the inner shell 602, and then the two outer side covers 6011 are connected, and then the remaining outer side covers 6011 are sequentially connected together. However, the outer side cover 6011 is very thin, and the outer side cover 6011 arranged vertically is prone to falling, and the installer needs to hold the outer side cover 6011 with one hand, which makes the shell 601 not convenient to assemble.

[0165] In combination with FIG. 23 and FIG. 25, in the embodiments of the present application, the shell 60 can further include a hanging part 604 and a fixing part 605, the fixing part 605 is arranged on the top of the inner shell 602, and the hanging part 604 is arranged on the side of the outer side cover 6011, when the outer side cover 6011 is arranged vertically on the side of the inner shell 602, the side of the outer side cover 6011 provided with the hanging part 604 faces the inner shell 602, and the hanging part 604 is clamped with the fixing part 605, so that the falling of the outer side cover 6011 can be prevented, and the installer does not need to hold the outer side cover 6011 with one hand, and the shell 601 is more convenient to assemble.

[0166] Please refer to Figure 25, in some embodiments, the side of the outer cover 6011 can be provided with a bending part 6014, and in the adjacent two outer covers 6011, one of the outer covers 6011 is provided with two adjacent bending parts 6014 which are connected, and the connected two bending parts 6014 are provided with a right angle part 6015 at the connection, and the other outer cover 6011 is provided with two adjacent bending parts 6014 which are spaced apart and provided with an assembly groove 6016 at the gap, and the right angle part 6015 can be installed in the assembly groove 6016, and the installation of the right angle part 6015 in the assembly groove 6016 can play a temporary fixing role, so that the adjacent two outer covers 6011 can be closely attached together, thereby forming a triangular structure, and the two outer covers 6011 can be more stable when arranged vertically, further facilitating the installation master to assemble the shell 601.

[0167] In some embodiments, the shape of the outer cover 6011 is a square structure, the four sides of the outer cover 6011 are provided with bending parts 6014, the bending parts 6014 are arranged along the sides of the outer cover 6011, and the four bending parts 6014 are bent towards the same side, in the adjacent two outer covers 6011, the two adjacent bending parts 6014 on one of the outer covers 6011 are connected, the two adjacent bending parts 6014 on the other outer cover 6011 are spaced apart and provided with an assembly groove 6016 at the gap, and the connected two bending parts 6014 are provided with a right angle part 6015 at the connection.

[0168] Please refer to Figure 26, in some embodiments, the bending part 6014 is further provided with a folding part 6017, the folding part 6017 can be arranged opposite to the outer cover 6011, and the outer cover 6011 is provided with a side fixing hole 6018, the folding part 6017 can be arranged opposite to the side fixing hole 6018, so that when a screwing piece is inserted into the side fixing hole 6018, the screwing piece can be prevented from contacting the parts inside the shell 601, and the parts inside the shell 601 can be prevented from being damaged by the screwing piece, and the screwing piece is a bolt, a screw, etc.

[0169] In some embodiments, the parts can be the heat preservation structure 603, and the folding part 6017 can prevent the screwing piece from damaging the heat preservation structure 603.

[0170] Please refer to Figures 19, 20 and 27, in some embodiments, the outer support leg 6019 can be provided on the outer bottom disc 6013, and the outer support leg 6019 is located on the bottom surface of the outer bottom disc 6013, and the outer support leg 6019 can play a role in supporting the shell 601.

[0171] Please refer to FIG. 20 and FIG. 23, in some embodiments, the shell 60 further comprises a heat preservation structure 603, which is arranged between the inner shell 602 and the outer shell 601, and can play a heat preservation role, can reduce the heat transfer from the inside of the inner shell 602 to the outside, thereby preventing the heat stored by the phase change material 50 from being lost, and further improving the heat exchange efficiency between the sub heat exchanger 201 and the phase change material 50.

[0172] In some embodiments, the heat preservation structure 603 can cover the outer wall surface of the inner shell 602, and the heat preservation structure 603 can cover the top, bottom and side of the inner shell 602, that is, the heat preservation structure 603 wraps the inner shell 602, and a part of the fixing member 605 is arranged between the heat preservation structure 603 and the inner shell 602, and the other part of the fixing member 605 protrudes from the heat preservation structure 603 and is clamped with the hanging part 604, and the heat preservation structure 603 plays a comprehensive heat preservation role.

[0173] Please refer to FIG. 28, in some embodiments, the fixing member 605 comprises an inner connecting part 6051, an intermediate part 6052 and an outer connecting part 6053 connected in sequence.

[0174] Specifically, the inner connecting part 6051 is arranged between the heat preservation structure 603 and the top of the inner shell 602, and the inner connecting part 6051 is connected with the top of the inner shell 602, and the inner connecting part 6051 also extends to the edge of the inner shell 602, the intermediate part 6052 is connected with the inner connecting part 6051 at an angle, so that the intermediate part 6052 can be arranged in the heat preservation structure 603, one end of the intermediate part 6052 protrudes from the heat preservation structure 603, the outer connecting part 6053 is connected with the intermediate part 6052 at an angle, and the outer connecting part 6053 is arranged in the direction close to the outer cover 6011, so that one end of the outer connecting part 6053 can be clamped with the hanging part 604.

[0175] Please refer to FIG. 23, in some embodiments, the heat preservation structure 603 covering the top of the inner shell 602 can be provided with a plurality of avoiding holes 6030, which are configured to allow the pipeline connected with the sub heat exchanger 201 to protrude.

[0176] Specifically, the plurality of manifold pipes 301 are arranged at the top of the sub heat exchanger 201, and the collection ports of the plurality of manifold pipes 301 can extend out of the avoiding holes 6030. More specifically, there are four manifold pipes 301, each of which has a charging inlet 3011, a charging outlet 3012, a discharging inlet 3013, and a discharging outlet 3014. The charging inlet 3011, the charging outlet 3012, the discharging inlet 3013, and the discharging outlet 3014 extend out of the four avoiding holes 6030, which can facilitate the connection of the heat source unit with the charging inlet 3011 and the charging outlet 3012, and the connection of the water utilization unit with the discharging inlet 3013. The discharging outlet 3014 can extend out to provide hot water for users.

[0177] Referring to FIGS. 23 and 24, in some embodiments, the heat preservation structure 603 can include a first heat preservation layer 6031 and a second heat preservation layer 6032. The first heat preservation layer 6031 can be arranged on the outer wall surface of the inner shell 602, and the second heat preservation layer 6032 is arranged on the side of the first heat preservation layer 6031 away from the inner shell 602. The heat preservation coefficient of the first heat preservation layer 6031 is greater than that of the second heat preservation layer 6032, which can better preserve the heat of the inner shell 602. The structural strength of the second heat preservation layer 6032 is better than that of the first heat preservation layer 6031. Although the heat preservation coefficient of the second heat preservation layer 6032 is smaller than that of the first heat preservation layer 6031, the second heat preservation layer 6032 can protect the first heat preservation layer 6031 from being damaged.

[0178] Specifically, the heat preservation structure 603 can include six first heat preservation layers 6031, each of which is arranged on the outer wall surface of the inner shell 602. The heat preservation structure 603 can also include six second heat preservation layers 6032, each of which is arranged corresponding to the six first heat preservation layers 6031. The first heat preservation layer 6031 and the second heat preservation layer 6032 on the top surface of the inner shell 602 are each provided with an avoiding hole 6030. The avoiding hole 6030 on the first heat preservation layer 6031 is coaxially arranged with the avoiding hole 6030 on the second heat preservation layer 6032, which can facilitate the extension of the collection port of the manifold pipe 301.

[0179] Referring to FIG. 21, in some embodiments, the bottom of the inner shell 602 is provided with a plurality of inner support feet 6023, which can be connected with the bottom plate of the inner shell 602. Two inner support feet 6023 can define a placement space, which can be configured to accommodate the heat preservation structure 603, facilitating the installation of the heat preservation structure 603.

[0180] Specifically, the bottom of the inner shell 602 is provided with four inner supporting feet 6023, the four inner supporting feet 6023 are located at the four corners of the bottom of the inner shell 602, and two inner supporting feet 6023 form a pair, the pair of inner supporting feet 6023 can define a placing space, the first heat preservation layer 6031 at the bottom of the inner shell 602 can be arranged in the two placing spaces, so that the first heat preservation layer 6031 is firmly arranged at the bottom of the inner shell 602, and when the second heat preservation layer 6032 at the bottom of the inner shell 602 is installed, the second heat preservation layer 6032 only needs to be attached to the first heat preservation layer 6031, which is very convenient to install.

[0181] Please refer to FIG. 29 and FIG. 30, in some embodiments, the circumferential side wall of the inner shell 602 is provided with a reinforcing rib 6024, the reinforcing rib 6024 is arranged in a circle along the circumference of the inner shell 602, and the reinforcing rib 6024 can increase the structural strength of the inner shell 602.

[0182] In some embodiments, the inner shell 602 is a stainless steel liner, which will expand when heated. By arranging the reinforcing rib 6024, the rigidity and stability of the stainless steel liner can be increased, and the main function of the reinforcing rib 6024 is to resist the deformation force generated when the inner shell 602 expands when heated.

[0183] Specifically, when the inner shell 602 expands when heated, an outward expansion force will be generated. Without sufficient support, this force can cause the inner shell 602 to deform or break. By arranging the reinforcing rib 6024 on the side wall of the inner shell 602, multiple “support points” are added to the inner shell 602, so that the reinforcing rib 6024 can disperse and resist this expansion force, thereby maintaining the shape and stability of the inner shell 602.

[0184] In combination with FIG. 30, the circumferential side wall of the inner shell 602 is provided with at least two reinforcing ribs 6024, and the two reinforcing ribs 6024 are arranged in a spaced-apart manner in the upward and downward directions. By arranging two reinforcing ribs 6024, the inner shell 602 can be uniformly supported and reinforced in all directions, effectively resisting the outward expansion force generated when the inner shell 602 expands when heated, and maintaining the shape and dimensional stability of the inner shell 602.

[0185] In some embodiments, the temperature sensing assembly 10 can also be installed on the top of the inner shell 602, and the top of the inner shell 602 is provided with a hole for the temperature sensing assembly 10 to extend into the inner shell 602, so that the temperature sensing assembly 10 can be inserted into the phase change material 50 to measure the temperature of the phase change material 50.

[0186] Please refer to FIG. 31, in some embodiments, a heating system 200 provided by the present application includes a heat source module 300, a first utilization unit 400, and a heat storage device 100.

[0187] Specifically, the heat exchange module 20 can include a plurality of charging flow paths 202 and a plurality of discharging flow paths 203, the plurality of charging flow paths 202 and the plurality of discharging flow paths 203 can be arranged in sequence and alternately in the first direction, the heat source module 300 can be in communication with the charging flow path 202, the heat fluid in the heat source module 300 can flow into the charging flow path 202, the charging flow path 202 can transfer heat to the phase change material 50, and the first utilization unit 400 can be in communication with the discharging flow path 203, the first utilization unit 400 can be a water utilization unit, cold water flowing into the discharging flow path 203 can absorb the heat of the phase change material 50, and the cold water can be heated into hot water for use by a user, so that clean hot water can be provided for the user in real time without the need to set a water tank to store hot water.

[0188] Further, referring to FIGS. 2, 8 and 12, the heat exchange module 20 is embedded in the phase change material 50, the flow direction of the heat fluid in the charging flow path 202 is from the upper part of the depth direction of the phase change material 50 to the lower part of the depth direction of the phase change material 50, and the flow direction of the cold water in the discharging flow path 203 is from the lower part of the depth direction of the phase change material 50 to the upper part of the depth direction of the phase change material 50, that is, the flow direction of the charging flow path 202 is opposite to the flow direction of the discharging flow path 203, in the embodiment, the phase state change of the phase change material 50 during charging and discharging is the transformation between solid and liquid, during the charging process, along the flow direction of the charging flow path 202, the phase change material 50 starts to change phase from the upper part of the depth direction and melts from solid to liquid until the phase change material 50 at the lower part of the depth direction melts into liquid to complete the whole charging process. During the charging process, along the flow direction of the charging flow path 202, the phase change material 50 will generate a temperature gradient along the depth direction, and the temperature will be from high to low along the depth direction. Among them, the flow direction of the charging flow path 202 is opposite to the flow direction of the discharging flow path 203, the charging flow path 202 defines the temperature gradient of the phase change material 50 along the depth direction, and the discharging flow path is opposite to the charging flow path, so that the cold water to be heated flows from the area with low temperature of the phase change material 50 to the area with high temperature of the phase change material 50, so that the water in the discharging flow path is always in the state of absorbing heat from the phase change material 50, which ensures the heating efficiency of the terminal water.

[0189] The heat storage device 100 can include at least two temperature sensing assemblies 10, one of which is inserted into the phase change material 50 to a first preset depth, and the other of which is inserted into the phase change material 50 to a second preset depth, and the phase change material 50 defines a temperature gradient along its depth direction during phase change, the temperature gradient having a high temperature zone and a low temperature zone, one of the two temperature sensing assemblies 10 extends into the high temperature zone and is configured to detect a first temperature of the phase change material 50 in the high temperature zone, and the other of the two temperature sensing assemblies 10 extends into the low temperature zone and is configured to detect a second temperature of the phase change material 50 in the low temperature zone.

[0190] In the present application, the high temperature zone and the low temperature zone are relative high temperature and relative low temperature, that is, the high temperature zone of the phase change material 50 has a higher temperature than other regions of the phase change material 50, and the low temperature zone of the phase change material 50 has a lower temperature than other regions of the phase change material 50. In combination with FIG. 1, in the present embodiment, along the depth direction, the phase change material 50 has a depth size D from the upper edge to the lower edge, the high temperature zone Hd ranges from 0

[0191] In some embodiments, the heating system 200 further comprises a control module connected with the heat source module 300, which controls the working mode of the heat storage module 100 according to the first temperature detected by the high-temperature zone temperature sensing assembly 10 and the second temperature detected by the low-temperature zone temperature sensing assembly 10. When the first temperature is lower than a first preset temperature, the control module can start the heat source module 300 to transfer heat to the phase change material 50 through the charging flow path 202, and the charging mode is started, and the phase change material 50 absorbs heat and the temperature rises. When the second temperature is higher than a second preset temperature, the control module cuts off the charging mode, i.e. closes the charging flow path 202, and the first temperature and the second temperature measured by the two temperature sensing assemblies 10 can be used to conveniently determine the timing of starting the heat source module 300. In the preset parameters, the first preset temperature parameter is less than the second preset temperature parameter, and the first preset temperature and the second preset temperature are both set according to the phase change temperature of the phase change material 50. Taking the phase change temperature of the phase change material 50 as 60℃ as an example, the first preset temperature is set as (60-k1)℃, and the value range of k1 is 0

[0192] In some embodiments, in another embodiment, different from the above-mentioned embodiments, the direction of the charging flow path 202 is opposite to the depth direction, that is, the charging flow path 202 flows into from below the depth direction of the phase change material 50 and flows out from above the depth direction of the phase change material 50, and a temperature gradient is defined along the direction of the charging flow path 202, and the temperature of the phase change material 50 decreases from below the depth direction to above the depth direction. In this embodiment, the high-temperature zone of the phase change material 50 is 0.95D≤Hd≤D, the temperature sensing assembly 10 of the high-temperature zone is inserted into the high-temperature zone, and the temperature sensing probe 31 is located in the range of 0.95D-D (including 0.95D but excluding D), and a gap is maintained between the temperature sensing probe 31 and the bottom wall of the inner shell 602 to avoid the influence of the temperature of the bottom wall of the inner shell 602 on the detected temperature. The low-temperature zone of the phase change material 50 is 0

[0193] In some embodiments, the heat source module 300 can comprise a main heat source unit and an auxiliary heat source unit, both of which can be in communication with the charging flow path 202 and can transfer heat to the phase change material 50 through the charging flow path 202.

[0194] The main heat source unit can include one of a solar thermal collector module, a water source heat exchange module, and an air source heat exchange module. When conditions permit, more environmentally friendly natural energy sources such as solar thermal collector modules, water source heat exchange modules, and air source heat exchange modules are preferred to exchange heat with the phase change material 50, thereby saving energy.

[0195] The auxiliary heat source unit includes an electric heating module. When the main heat source unit is insufficient, the auxiliary heat source unit can provide energy to ensure the stability and continuity of heat supply.

[0196] Please refer to Figure 31. In some embodiments, the HVAC system 200 may also include a second utilization unit 500, which may be connected to the heat source module 300 through a heat transfer pipe. The heat transfer pipe is also connected in parallel with the energy flow path 202, so that the second utilization unit 500 and the first utilization unit use the heat source module 300.

[0197] In some embodiments, the second utilization unit 500 is a temperature control module configured to regulate the indoor temperature, and the HVAC system 200 also has a first operating mode and then a second operating mode.

[0198] When the HVAC system 200 is in the first working mode, the heat source module 300 can provide heat to the phase change material 50, so that the first utilization unit 400 can absorb the heat stored in the phase change material 50 to heat the cold water, thereby providing hot water to the user; when the HVAC system 200 is in the second working mode, the heat source module 300 can provide heat to the second utilization unit 500, so that the second utilization unit 500 can be configured to regulate the indoor temperature.

[0199] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this application, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, they are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the accompanying drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0200] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A heat storage device, wherein, Comprising a housing, a heat exchange module and a phase change material are arranged in the housing, the heat exchange module is embedded in the phase change material, and the heat exchange module is in thermal conduction with the phase change material; and at least one temperature sensing assembly is inserted into the phase change material by a preset depth.

2. The thermal storage device of claim 1, wherein, The temperature sensing assembly comprises: a support plate arranged on the heat exchange module, and the support plate has an assembly hole; a blind pipe inserted into the assembly hole and configured to extend into the phase change material, an inner wall surface of the blind pipe is provided with a positioning structure; and a temperature sensing probe comprising a temperature sensing probe arranged inside the blind pipe, the temperature sensing probe cooperates with the positioning structure to limit the preset depth of the temperature sensing probe inserted into the phase change material.

3. The thermal storage device of claim 2, wherein, The positioning structure comprises positioning protrusions arranged on the inner wall surface of the blind pipe, and the temperature sensing probe is clamped or abuts with the positioning protrusions.

4. The thermal storage device of claim 3, wherein, The positioning protrusions are arranged in a circle along the circumference of the blind pipe; or a plurality of positioning protrusions are arranged in sequence along the circumference of the blind pipe.

5. The thermal storage device of any of claims 2-4, wherein, The temperature sensing probe further comprises a sensor wire body, the sensor wire body is partially inserted into the blind pipe and connected with the temperature sensing probe, and an outer wall surface of the sensor wire body is provided with a position indicating part, when the temperature sensing probe cooperates with the positioning structure, the position indicating part is located at the pipe opening of the blind pipe.

6. The thermal storage device of claim 5, wherein, The temperature sensing probe further comprises a connector arranged at the pipe opening of the blind pipe, the sensor wire body is threaded through the connector and inserted into the blind pipe, and the connector is configured to lock or release the sensor wire body.

7. The thermal storage device of claim 6, wherein, The connector comprises a base and a fastening head, the base is connected to the pipe opening of the blind pipe and is provided with a first through hole in communication with the blind pipe, the fastening head is threadedly connected with the base and is provided with a second through hole in communication with the first through hole, the sensor wire body is threaded through the second through hole and the first through hole in sequence and inserted into the blind pipe, and the sensor wire body is locked or released by rotating the fastening head relative to the base.

8. The thermal storage device of any of claims 5-7, wherein, The temperature sensing assembly further comprises a sealing member arranged between the sensor wire body and the blind pipe to seal the gap between the sensor wire body and the blind pipe.

9. The thermal storage device of any of claims 2-8, wherein, The temperature sensing assembly further comprises a heat conducting oil arranged inside the blind pipe, and the heat conducting oil immerses the temperature sensing probe.

10. The thermal storage device of any of claims 1-9, wherein, The heat storage device comprises at least two temperature sensing assemblies, one temperature sensing assembly is inserted into the phase change material by a first preset depth, and another temperature sensing assembly is inserted into the phase change material by a second preset depth.

11. The thermal storage device of any of claims 1-9, wherein, The heat exchange module comprises a plurality of sub-heat exchangers, the plurality of sub-heat exchangers are arranged in parallel and spaced apart in sequence along a first direction, and the phase change material is arranged in the gap between adjacent two sub-heat exchangers, and the temperature sensing assembly is inserted into the phase change material between adjacent two sub-heat exchangers.

12. The thermal storage device of claim 11, wherein, The heat storage device further comprises a sensor mounting plate fixedly arranged on the top of the sub-heat exchanger, and the plurality of temperature sensing assemblies are arranged on the sensor mounting plate.

13. The thermal storage device of claim 12, wherein, The heat storage device further comprises a pipeline structure, the pipeline structure comprises manifold and delivery pipe, a plurality of manifold is arranged on the top of the sub heat exchanger, and a plurality of manifold is communicated with a plurality of sub heat exchanger through a plurality of delivery pipe, the sensor mounting plate is arranged between the manifold and the sub heat exchanger, and the temperature sensing component is located at the side of the manifold.

14. The thermal storage device of claim 13, wherein, The heat storage device further comprises manifold fixing piece, the manifold fixing piece is installed on the top of the sub heat exchanger, and the manifold fixing piece is spaced apart from a plurality of mounting holes, a plurality of manifold is arranged in a plurality of mounting holes respectively, so that the manifold and the sub heat exchanger have a gap, the sensor mounting plate is arranged at the gap between the manifold and the sub heat exchanger.

15. The thermal storage device of claim 13 or 14, wherein, The pipeline structure further comprises a plurality of three-way pipe, one end of each three-way pipe is communicated with one delivery pipe, and the other two ends of each three-way pipe are communicated with two sub heat exchangers respectively.

16. The thermal storage device of any of claims 11-15, wherein, The heat storage device comprises a plurality of temperature sensing components, and the plurality of temperature sensing components are inserted into the phase change material between adjacent two sub heat exchangers.

17. The thermal storage device of any of claims 11-16, wherein, The sub heat exchanger comprises a heat exchange main body and a side plate, the heat exchange main body is provided with the side plate on one side in the second direction, the second direction is intersected with the first direction, and the temperature sensing component is arranged on the side plate.

18. The thermal storage device of claim 17, wherein, The heat storage device further comprises a gap maintainer, the gap maintainer is connected with the side plate of a plurality of sub heat exchangers, so that a plurality of sub heat exchangers are sequentially and spaced apart in the first direction, and the temperature sensing component is arranged on the gap maintainer.

19. The thermal storage device of claim 18, wherein, The gap maintainer comprises: A first connecting piece is arranged at the bottom of the sub heat exchanger, and the first connecting piece comprises a first plate body and a plurality of first fixing parts arranged on the first plate body, a plurality of first fixing parts are spaced apart along the first direction, and the first fixing part is connected with the bottom of the corresponding side plate; and A second connecting piece is arranged at the top of the sub heat exchanger, and the second connecting piece comprises a second plate body and a plurality of second fixing parts arranged on the second plate body, a plurality of second fixing parts are spaced apart along the first direction, and the second fixing part is connected with the top of the corresponding side plate, and the temperature sensing component is arranged on the second plate body.

20. The thermal storage device of claim 18 or 19, wherein, The heat storage device further comprises a protection component, the protection component is arranged at the bottom of a plurality of sub heat exchangers, and the protection component covers the gap maintainer and is connected with the bottom of a plurality of side plates.

21. The thermal storage device of any of claims 1-20, wherein, The shell comprises an outer shell and an inner shell, the inner shell is arranged in the outer shell, and the inside of the inner shell is provided with the heat exchange module and the phase change material, and the top of the inner shell is provided with a wire arrangement port and a pipe outlet; The temperature sensing component comprises a temperature sensing probe and a wiring terminal connected with the temperature sensing probe, the temperature sensing probe is arranged in the phase change material, the wiring terminal extends out of the inner shell from the wire arrangement port, and the pipe outlet is configured for the pipeline connected with the heat exchange module to extend out.

22. The thermal storage device of claim 21, wherein, The inner shell and the outer shell form a mounting space above the inner shell, the wiring terminal is located in the mounting space, the outer shell is provided with a wire hole communicating with the mounting space, and the wire hole is configured to allow an external wire to be inserted into the mounting space and connected with the wiring terminal.

23. The thermal storage device of claim 22, wherein, The outer shell is further provided with a pipe hole communicating with the mounting space, and the pipe hole is configured to allow a pipe line communicating with the heat exchange module to extend out.

24. The thermal storage device of any of claims 21-23, wherein, The outer shell comprises a plurality of outer side covers, an outer top cover and an outer bottom plate, the plurality of outer side covers are sequentially arranged on the side of the inner shell and are connected with each other, the outer top cover is connected with the top of the plurality of outer side covers, and the outer bottom plate is connected with the bottom of the plurality of outer side covers. The shell further comprises a hanging part and a fixing part, the fixing part is arranged on the top of the inner shell, the hanging part is arranged on the side of the outer side cover facing the inner shell, and the hanging part is clamped with the fixing part.

25. The thermal storage device of claim 24, wherein, The side edge of the outer side cover is provided with a bending part, and in the two adjacent outer side covers, two adjacent bending parts on one of the outer side covers form a right angle part, and two adjacent bending parts on the other outer side cover have a gap and form an assembly groove, and the right angle part is installed in the assembly groove.

26. The thermal storage device of claim 25, wherein, The bending part is further provided with a folding part, the outer side cover is provided with a side fixing hole, and the folding part is arranged opposite to the side fixing hole.

27. The thermal storage device of any of claims 24-26, wherein, The outer bottom plate is provided with an outer supporting leg.

28. The thermal storage device of any of claims 24-27, wherein, The shell further comprises a heat preservation structure, the heat preservation structure is arranged between the inner shell and the outer shell, covers the outer wall surface of the inner shell, a part of the fixing part is arranged between the heat preservation structure and the inner shell, and another part of the fixing part extends out of the heat preservation structure and is clamped with the hanging part.

29. The thermal storage device of claim 28, wherein, The fixing part comprises an inner connecting part, an intermediate part and an outer connecting part which are sequentially connected, the inner connecting part is arranged between the heat preservation structure and the top of the inner shell and is connected with the inner shell, the intermediate part is connected with the inner connecting part at an angle, the intermediate part penetrates the heat preservation structure, the outer connecting part is connected with the intermediate part at an angle, and the outer connecting part extends out of the heat preservation structure and is clamped with the hanging part.

30. The thermal storage device of claim 28 or 29, wherein, The heat preservation structure covering the top of the inner shell is provided with a plurality of avoiding holes, a part of the avoiding holes are configured to allow the wiring terminal to extend out, and another part of the avoiding holes are configured to allow the pipe line connected with the heat exchange module to extend out.

31. The thermal storage device of any of claims 28-30, wherein, The heat preservation structure comprises a first heat preservation layer and a second heat preservation layer, the first heat preservation layer is arranged on the outer wall surface of the inner shell, the second heat preservation layer is arranged on the side of the first heat preservation layer away from the inner shell, the first heat preservation layer and the second heat preservation layer located on the top of the inner shell are provided with the avoiding holes, and the avoiding holes on the first heat preservation layer and the avoiding holes on the second heat preservation layer are coaxially arranged.

32. The thermal storage device of any of claims 28-31, wherein, The bottom of the inner shell is provided with a plurality of inner supporting legs, and two inner supporting legs define a placing space configured to accommodate the heat preservation structure.

33. The thermal storage device of any of claims 21-32, wherein, The circumferential side wall of the inner shell is provided with a reinforcing rib, and the reinforcing rib is arranged in a circle along the circumference of the inner shell.

34. The thermal storage device of claim 33, wherein, The circumferential side wall of the inner shell is provided with at least two reinforcing ribs, and the two reinforcing ribs are arranged in a spaced manner in the up-down direction.

35. The thermal storage device of any of claims 21-32, wherein, The temperature sensing assembly is mounted on the top of the inner shell.

36. A heating and ventilation system wherein, The heating system comprises a heat source module, a first utilization unit, and the heat storage device according to any one of claims 1-35, the heat exchange module comprises a charging flow path and a discharging flow path, the heat source module is in communication with the charging flow path to form a charging circuit, the first utilization unit is in communication with the discharging flow path to form a discharging circuit, the heat storage device comprises at least two temperature sensing assemblies, one of the temperature sensing assemblies is configured to detect a first temperature at a first preset depth in the phase change material, and another temperature sensing assembly is configured to detect a second temperature at a second preset depth in the phase change material, the first preset depth is closer to the upstream of the heat storage device than the second preset depth.

37. The heating system of claim 36, wherein, The heating system comprises a control module connected with the heat source module, and the control module is configured to control the opening or closing of the charging circuit according to the first temperature and the second temperature.

38. The heating system of claim 37, wherein, The control module is provided with a temperature threshold value, when the first temperature is less than the temperature threshold value, the control module controls the charging circuit to be opened, and when the second temperature is greater than the temperature threshold value, the control module controls the charging circuit to be closed.

39. The heating system of any of claims 36-38, wherein, The heat source module comprises: a main heat source unit in communication with the charging flow path, the main heat source unit comprises at least 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 charging flow path, the auxiliary heat source unit comprises an electric heating module.

40. The heating system of any of claims 36-39, wherein, The heating system further comprises a second utilization unit, the heat source module is in communication with the second utilization unit through a heat transfer pipeline, and the heat transfer pipeline is in parallel connection with the charging flow path.

41. The heating system of claim 40, wherein, The heating system has: a first working mode, when the heating system is in the first working mode, the heat source module provides heat for the first utilization unit; and a second working mode, when the heating system is in the second working mode, the heat source module provides heat for the second utilization unit.

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