Heat storage device and heating and ventilation system

Abstract

The utility model discloses a heat storage device and a heating and ventilation system, and relates to the technical field of heat exchange equipment, the heat storage device comprises a shell and at least one temperature sensing assembly, a heat exchange module and a phase change material are arranged in the shell, the heat exchange module is embedded in the phase change material, and the heat exchange module is in heat conduction connection with the phase change material; the temperature sensing assembly is inserted into the phase change material by a preset depth so as to detect the temperature of the phase change material at the preset depth. A containing cavity is formed by arranging a shell, a heat exchange module and a phase change material are both arranged in the containing cavity formed by the shell, the heat exchange module is embedded in the phase change material, the heat exchange module can exchange heat with the phase change material, and a temperature sensing assembly can be inserted into the phase change material by a preset depth so as to detect the temperature of the phase change material at the preset depth. By inserting the temperature sensing assembly into the phase-change material by the preset depth, the temperature change of the phase-change material in the designated area in the heat storage device can be accurately monitored.

Description

Technical Field

[0001] This application relates to the technical field of heat exchange equipment, and in particular to a heat storage device and a heating, ventilation and air conditioning (HVAC) system. Background Art

[0002] Currently, the water temperature in an independent hot water tank generally remains between 0 and 100 °C. Within this range, there is no phase change of water, that is, it will not change from solid to liquid or from gas to liquid. The water temperature change in this temperature range shows a linear characteristic. Moreover, during the heating or cooling process of the hot water tank, natural convection is induced in the water in the hot water tank due to the temperature difference, which helps the water temperature inside the tank reach a uniform state. Therefore, by pasting a temperature sensor on the inner wall of the hot water tank or using a single-point temperature-sensing blind tube to monitor the water temperature, the water temperature can be accurately measured, and the requirements for the installation and positioning of the sensor are not high.

[0003] However, the phase change material used in the heat storage device will change between solid and liquid or between liquid and gas, resulting in a large temperature difference of the phase change material at different positions inside the box. 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 acquisition accuracy of the entire device and the accuracy of logic control. Summary of the Utility Model

[0004] The embodiments of this application provide a heat storage device and a HVAC system, which can solve the technical problem that it is difficult to accurately monitor the temperature change of the phase change material at different positions due to the unstable installation position of the temperature sensor.

[0005] In a first aspect, the embodiments of this application provide a heat storage device, which includes a housing and at least one temperature-sensing component. A heat exchange module and a phase change material are arranged inside the housing. The heat exchange module is buried in the phase change material, and the heat exchange module is thermally connected to the phase change material. The temperature-sensing component is inserted into the phase change material to a preset depth.

[0006] In some embodiments, the temperature-sensing component includes a support plate, a blind tube, and a temperature-sensing probe. The support plate is used to be arranged on the heat exchange module. The blind tube is installed on the support plate and is used to extend into the phase change material. A positioning structure is provided on the inner wall surface of the blind tube. The temperature-sensing probe is arranged inside the blind tube. The temperature-sensing probe cooperates with the positioning structure to define the preset depth at which the temperature-sensing probe is inserted into the phase change material.

[0007] In some embodiments, the positioning structure includes positioning bumps provided on the inner wall surface of the blind tube. The temperature-sensing probe is clamped or abutted against the positioning bumps.

[0008] In some of these embodiments, the positioning bumps are arranged in a circle along the circumference of the blind tube; alternatively, a plurality of the positioning bumps are arranged at intervals in sequence along the circumference of the blind tube.

[0009] In some of these embodiments, the temperature sensing detector further includes a sensor wire body, a part of the sensor wire body is inserted into the blind tube and connected to the temperature sensing probe, and a position indication portion is provided on the outer wall surface of the sensor wire body. When the temperature sensing probe is engaged with the positioning structure, the position indication portion is located at the orifice of the blind tube.

[0010] In some of these embodiments, the temperature sensing detector further includes a connector. The connector is arranged at the orifice of the blind tube. The sensor wire body passes through the connector and is inserted into the blind tube. The connector is used to lock or loosen the sensor wire body.

[0011] In some of these embodiments, the connector includes a base and a fastening head. The base is connected to the orifice of the blind tube and is provided with a first through hole communicating with the blind tube. The fastening head is in threaded cooperation with the base and is provided with a second through hole communicating with the first through hole. The sensor wire body passes through the second through hole and the first through hole in sequence and is inserted into the blind tube. By rotating the fastening head relative to the base, the sensor wire body is locked or loosened.

[0012] In some of these embodiments, the temperature sensing assembly further includes a seal. The seal is arranged between the sensor wire body and the blind tube to seal the gap between the sensor wire body and the blind tube.

[0013] In some of these embodiments, the temperature sensing assembly further includes heat conduction oil. The heat conduction oil is arranged inside the blind tube, and the heat conduction oil submerges the temperature sensing probe.

[0014] In some of these embodiments, the heat storage device includes at least two of the temperature sensing assemblies, and one of the temperature sensing assemblies is inserted into the phase change material to a first preset depth, and the other temperature sensing assembly is inserted into the phase change material to a second preset depth.

[0015] In some of these embodiments, the heat exchange module includes a plurality of sub-heat exchangers. The plurality of sub-heat exchangers are arranged in parallel at intervals in a first direction, and the phase change material is provided in the gap between two adjacent sub-heat exchangers. The temperature sensing assembly is inserted into the phase change material between two adjacent sub-heat exchangers.

[0016] In some of these embodiments, the heat storage device further includes a sensor mounting plate. The sensor mounting plate is fixedly arranged on the top of the sub-heat exchanger, and the temperature sensing assembly is arranged on the sensor mounting plate.

[0017] In some of these embodiments, the heat storage device further includes a pipeline structure, which includes a manifold and delivery pipes. A plurality of the manifolds are arranged on the top of the heat exchange module, and the plurality of manifolds are communicated with a plurality of the sub-heat exchangers through the plurality of delivery pipes. The sensor mounting plate is arranged between the manifold and the sub-heat exchanger, and the temperature sensing assembly is located on the side of the manifold.

[0018] In some of these embodiments, the heat storage device further includes a manifold fixing member, which is installed on the top of the sub-heat exchanger, and the manifold fixing member is provided with a plurality of mounting holes at intervals. The plurality of manifolds are respectively arranged in the plurality of mounting holes, so that there is a gap between the manifold and the sub-heat exchanger, and the sensor mounting plate is arranged at the gap between the manifold and the sub-heat exchanger.

[0019] In some of these embodiments, the pipeline structure further includes a plurality of three-way connectors. One end of each three-way connector is communicated with one of the delivery pipes, and the other two ends of each three-way connector are respectively communicated with two of the sub-heat exchangers.

[0020] In some of these embodiments, the heat storage device includes a plurality of the temperature sensing assemblies, and the plurality of temperature sensing assemblies are all inserted into the phase change material between two adjacent sub-heat exchangers.

[0021] In some of these embodiments, the sub-heat exchanger includes a heat exchange main body and side plates. The side plates are provided on one side of the heat exchange main body along a second direction, and the second direction intersects with the first direction. The temperature sensing assembly is arranged on the side plates.

[0022] In some of these embodiments, the heat storage device further includes a gap retainer, which is connected to the side plates of the plurality of sub-heat exchangers, so that the plurality of sub-heat exchangers are arranged at intervals in sequence along the first direction, and the temperature sensing assembly is arranged on the gap retainer.

[0023] In some of these embodiments, the gap retainer includes:

[0024] A first connecting member, which is arranged at the bottom of the sub-heat exchanger, and the first connecting member includes a first plate body and a plurality of first fixing parts arranged on the first plate body. The plurality of first fixing parts are arranged at intervals along the first direction, and the first fixing parts are connected to the bottom of the corresponding side plates; and,

[0025] The second connecting member is disposed at the top of the sub-heat exchanger, and the second connecting member includes a second plate body and a plurality of second fixing portions disposed on the second plate body. The plurality of second fixing portions are spaced along the first direction, and the second fixing portions are connected to the tops of the corresponding side plates. The temperature sensing assembly is disposed on the second plate body.

[0026] In some embodiments, the heat storage device further includes a protection component, which is disposed at the bottoms of the plurality of sub-heat exchangers, covers the gap retainer, and is respectively connected to the bottoms of the plurality of side plates.

[0027] In some embodiments, the housing includes an outer shell and an inner shell. The inner shell is disposed inside the outer shell, and the heat exchange module and the phase change material are disposed inside the inner shell. A wire management port and an outlet pipe port are provided at the top of the inner shell. Wherein, the temperature sensing assembly includes a temperature sensing probe and a wiring terminal connected to the temperature sensing probe. The temperature sensing probe is disposed in the phase change material, the wiring terminal extends out of the inner shell from the wire management port, and the outlet pipe port is for a pipeline connected to the heat exchange module to extend out.

[0028] 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 communicating with the installation space, and the wire passing hole is for an external wire to be inserted into the installation space to be connected to the wiring terminal.

[0029] In some embodiments, the outer shell is further provided with a pipe passing hole communicating with the installation space, and the pipe passing hole is for a pipeline communicating with the heat exchange module to extend out.

[0030] In some embodiments, the outer shell includes a plurality of outer side covers, an outer top cover, and an outer bottom plate. The plurality of outer side covers are sequentially disposed around the periphery of the inner shell and are connected to each other. The outer top cover is connected to the tops of the plurality of outer side covers, and the outer bottom plate is connected to the bottoms of the plurality of outer side covers;

[0031] The housing further includes a hanging portion and a fixing member. The fixing member is disposed at the top of the inner shell, and the hanging portion is disposed on the side surface of the outer side cover facing the inner shell. The hanging portion is snap-fitted with the fixing member.

[0032] In some embodiments, the side of the outer side cover is provided with a bending portion. Among two adjacent outer side covers, two adjacent bending portions on one of the outer side covers form a right-angle portion, and there is a gap between two adjacent bending portions on the other outer side cover and an assembly groove is formed. The right-angle portion is installed in the assembly groove.

[0033] In some embodiments, the bending portion is further provided with a folding portion, the outer cover is provided with a side fixing hole, and the folding portion is arranged opposite to the side fixing hole.

[0034] In some of the embodiments, the outer chassis is provided with outer supporting feet.

[0035] In some embodiments, the shell further includes a thermal insulation structure, which is disposed between the inner shell and the outer shell, and covers the outer wall surface of the inner shell, a portion of the fixing member is disposed between the thermal insulation structure and the inner shell, and another portion of the fixing member extends out of the thermal insulation structure and is clamped with the hanging portion.

[0036] In some embodiments, the fixing part includes an inner connecting part, a middle part and an outer connecting part which are connected in sequence, the inner connecting part is arranged between the thermal insulation structure and the top of the inner shell and is connected to the inner shell, the middle part is connected to the inner connecting part at an angle, and the middle part is passed through the thermal insulation structure, the outer connecting part is connected to the middle part at an angle, and the outer connecting part extends out of the thermal insulation structure and is clamped with the hanging part.

[0037] In some of the embodiments, the insulation structure covering the top of the inner shell is provided with a plurality of avoidance holes, a portion of the avoidance holes are used for the extension of the wiring terminals, and another portion of the avoidance holes are used for the extension of pipes connected to the heat exchange module.

[0038] In some embodiments, the thermal insulation structure includes a first thermal insulation layer and a second thermal insulation layer, the first thermal insulation layer is arranged on the outer wall surface of the inner shell, the second thermal insulation layer is arranged on the side of the first thermal insulation layer away from the inner shell, and the first thermal insulation layer and the second thermal insulation layer located on the top of the inner shell are provided with the avoidance hole, and the avoidance hole on the first thermal insulation layer is coaxially arranged with the avoidance hole on the second thermal insulation layer.

[0039] In some embodiments, a plurality of inner supporting feet are provided at the bottom of the inner shell, and two of the inner supporting feet define a placement space, and the placement space is used to accommodate the thermal insulation structure.

[0040] In some of the embodiments, a circumferential side wall of the inner shell is provided with reinforcing ribs, and the reinforcing ribs are arranged in a circle along the circumference of the inner shell.

[0041] In some of the embodiments, at least two reinforcing ribs are provided on the circumferential side wall of the inner shell, and the two reinforcing ribs are spaced apart in the up-and-down direction.

[0042] In some of these embodiments, the temperature sensing component is installed at the top of the inner shell.

[0043] In a second aspect, embodiments of the present application provide a heating, ventilation, and air conditioning (HVAC) system, characterized by comprising a heat source unit, a water utilization unit, and the heat storage device as described above. The heat exchange module includes a charging flow path and a discharging flow path. The heat source unit is connected to the charging flow path to form a charging loop, and the water utilization unit is connected to the discharging flow path to form a discharging loop. The heat storage device includes at least two of the temperature sensing components. One of the temperature sensing components is used to detect a first temperature at a first preset depth within the phase change material, and another one of the temperature sensing components is used to detect a second temperature at a second preset depth within the phase change material. The first preset depth is closer to the upstream of the heat storage device than the second preset depth.

[0044] In some of these embodiments, the HVAC system includes a control module, which is connected to the heat source unit and is configured to control the opening or closing of the charging loop according to the first temperature and the second temperature.

[0045] In some of these embodiments, the control module is preset with a temperature threshold. When the first temperature is less than the temperature threshold, the control module controls the charging loop to open. When the second temperature is greater than the temperature threshold, the control module controls the charging loop to close.

[0046] In some of these embodiments, the heat source unit includes:

[0047] A main heat source unit, which is in communication with the charging flow path. The main heat source unit includes at least one of a solar heat collection module, a water source heat exchange module, and an air source heat exchange module; and

[0048] An auxiliary heat source unit, which is in communication with the charging flow path. The auxiliary heat source unit includes an electric heating module.

[0049] In some of these embodiments, the HVAC system further includes a second utilization unit. The heat source unit is in communication with the second utilization unit through a heat transfer pipeline, and the heat transfer pipeline is in parallel with the charging flow path.

[0050] In some of these embodiments, the HVAC system has:

[0051] A first working mode. When the HVAC system is in the first working mode, the heat source unit provides heat for the first utilization unit; and

[0052] A second working mode. When the HVAC system is in the second working mode, the heat source unit provides heat for the second utilization unit.

[0053] The heat storage device and the HVAC system based on the embodiments of the present application have at least the following beneficial effects:

[0054] By providing a housing to form a receiving cavity, both the heat exchange module and the phase change material are arranged in the receiving cavity, and the heat exchange module is buried in the phase change material, enabling the heat exchange module to exchange heat with the phase change material. The temperature sensing component can be inserted into the phase change material to a preset depth to detect the temperature of the phase change material at the preset depth. By inserting the temperature sensing component into the preset depth of the phase change material, the temperature change of the phase change material in a specified area inside the heat storage device can be accurately monitored. BRIEF DESCRIPTION OF THE DRAWINGS

[0055] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative efforts.

[0056] Figure 1 Schematic diagram of the structure of the heat storage device provided by the embodiment of the present application with a temperature sensing component inside;

[0057] Figure 2 Schematic diagram of the structure of the heat storage device provided by the embodiment of the present application with a heat exchange module inside;

[0058] Figure 3 Schematic diagram of the structure of the heat exchange module from the first perspective provided by the embodiment of the present application;

[0059] Figure 4 Schematic diagram of the structure of the temperature sensing component provided by the embodiment of the present application;

[0060] Figure 5 For Figure 4 The sectional structure diagram at B-B in;

[0061] Figure 6 For Figure 5 The enlarged structure diagram at C in;

[0062] Figure 7 For Figure 6 The enlarged structure diagram at D in.

[0063] Figure 8 The front view of the heat exchange module provided by the embodiment of the application

[0064] Figure 9 For Figure 3 The sectional structure diagram at A-A in;

[0065] Figure 10Schematic structural diagram of the heat exchange module from the second perspective provided by the embodiments of the present application;

[0066] Figure 11 Schematic structural diagram of multiple temperature sensing components installed on the sensor mounting plate provided by the embodiments of the present application;

[0067] Figure 12 Schematic structural diagram of the heat exchange module from the third perspective provided by the embodiments of the present application;

[0068] Figure 13 Schematic exploded view of the manifold fixture provided by the embodiments of the present application;

[0069] Figure 14 Schematic three-dimensional structure diagram of the pipeline structure provided by the embodiments of the present application;

[0070] Figure 15 Schematic exploded view of the pipeline structure provided by the embodiments of the present application;

[0071] Figure 16 Schematic structural diagram of multiple sub-heat exchangers connected together provided by the embodiments of the present application;

[0072] Figure 17 Schematic exploded view of multiple sub-heat exchangers, the first connecting member and the second connecting member provided by the embodiments of the present application;

[0073] Figure 18 Schematic exploded view of multiple sub-heat exchangers, the protection component and the first connecting member provided by the embodiments of the present application;

[0074] Figure 19 Schematic three-dimensional structure diagram of a heat storage device provided by the embodiments of the present application;

[0075] Figure 20 Is Figure 19 Cross-sectional structure diagram at E-E in;

[0076] Figure 21 Schematic three-dimensional structure diagram of the inner shell provided by the embodiments of the present application;

[0077] Figure 22 Perspective view of a heat storage device provided by the embodiments of the present application;

[0078] Figure 23 Exploded view of the heat storage device provided by the embodiments of the present application;

[0079] Figure 24 Schematic exploded view of the heat insulation structure provided by the embodiments of the present application;

[0080] Figure 25 Is Figure 23Enlarged views at positions I and J in the figure;

[0081] Figure 26 is Figure 23 Enlarged view at position K in the figure;

[0082] Figure 27 is Figure 20 Enlarged view at position H in the figure;

[0083] Figure 28 is Figure 20 Enlarged view at position F in the figure;

[0084] Figure 29 is Figure 20 Enlarged view at position G in the figure;

[0085] Figure 30 Schematic diagram of the split structure of the inner shell provided by the embodiment of the present application;

[0086] Figure 31 Schematic diagram of the structure of a heating, ventilation and air conditioning (HVAC) system provided by the embodiment of the present application.

[0087] Explanation of reference numerals:

[0088] 100, Thermal energy storage device; 10, Temperature sensing component; 1, Support plate; 11, Assembly hole; 2, Blind tube; 21, Positioning structure; 211, Positioning bump; 3, Temperature sensing detector; 31, Temperature sensing probe; 32, Sensor wire body; 321, In-place indication part; 33, Connector; 331, Base; 3310, First through hole; 332, Fastening head; 3320, Second through hole; 34, Wiring terminal; 4, Sealing member; 20, Heat exchange module; 201, Sub-heat exchanger; 2011, Heat exchange main body; 2012, Side plate; 202, Energy charging flow path; 203, Energy discharging flow path; 30, Pipeline structure; 301, Manifold; 3011, Energy charging inlet; 3012, Energy charging outlet; 3013, Energy discharging inlet; 3014, Energy discharging outlet; 302, Delivery pipe; 303, Three-way connection pipe; 304, Main pipe; 305, Collection pipe; 306, Connection pipe; 307, Pipe joint nut; 40, Sensor mounting plate; 401, Accommodating hole; 50, Phase change material; 60, Housing; 601, Outer shell; 6010, Pipe passing hole; 6011, Outer cover; 6012, Outer top cover; 6013, Outer chassis; 6014, Bending part; 6015, Right angle part; 6016, Assembly groove; 6017, Folding part; 6018, Side fixing hole; 6019, Outer support foot; 6020, Wire passing hole; 602, Inner shell; 6021, Accommodating cavity; 6022, Outlet pipe; 6023, Inner support foot; 6024, Reinforcing rib; 6025, Wire management port; 603, Thermal insulation structure; 6030, Avoidance hole; 6031, First thermal insulation layer; 6032, Second thermal insulation layer; 604, Hanging part; 605, Fixing part; 6051, Inner connection part; 6052, Middle part; 6053, Outer connection part; 6001, Installation space; 70, Manifold fixing part; 700, Installation hole; 701, First fixing plate; 7011, First fixing hole; 7012, Clamping part; 702, Second fixing plate; 80, Protection component; 801, Protection plate; 802, Second fixing hole; 803, Relief hole; 90, Clearance retainer; 901, First connecting part; 9011, First plate body; 9012, First fixing part; 902, Second connecting part; 9021, Second plate body; 9022, Second fixing part; 200, HVAC system; 300, Heat source module; 400, First utilization unit; 500, Second utilization unit. Detailed implementation manners

[0089] In order to make the objectives, technical solutions and advantages of the present application clearer, the present application will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0090] Please refer to Figures 1 to 3, a heat storage device 100 provided by an embodiment of the present application. The heat storage device 100 is mainly used for storing heat and for a device for heat exchange. The heat storage device 100 includes a housing 60, a heat exchange module 20, a phase change material 50, and at least one temperature sensing component 10.

[0091] Optionally, the shape of the housing 60 is a cubic structure, and an accommodation cavity 6021 is formed inside the housing 60. The heat exchange module 20 and the phase change material 50 are both arranged in the accommodation cavity 6021. The heat exchange module 20 is buried in the phase change material 50. It should be noted that the heat exchange module 20 includes a plurality of sub-heat exchangers 201, and 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 thermally connected to the phase change material 50, that is, the heat exchange module 20 can perform heat exchange with the phase change material 50.

[0092] The temperature sensing component 10 can be inserted into a preset depth in the phase change material 50, so that the temperature sensing component 10 can detect the temperature of the phase change material 50 at the preset depth. Therefore, by inserting the temperature sensing component 10 into the preset depth of the phase change material 50, the temperature change of the phase change material 50 in a specified area inside the heat storage device 100 can be accurately monitored.

[0093] Please refer to Figure 3 and Figure 4 , in some embodiments, the temperature sensing component 10 can include a support plate 1, a blind tube 2, and a temperature sensing detector 3.

[0094] Optionally, the support plate 1 is a square plate. The support plate 1 can be fixed to the heat exchange module 20 by means of threaded connection or welding, etc., and the support plate 1 has an assembly hole 11 (see Figure 7 ).

[0095] The blind tube 2 is a tube body with a hollow interior, and one end of the blind tube 2 is an open end, and the other end of the blind tube 2 is a closed end. The blind tube 2 can be inserted into the assembly hole 11, so that the closed end of the blind tube 2 extends into the heat exchange module 20, and the open end of the blind tube 2 can be connected to the support plate 1, so that the blind tube 2 can be accurately installed at a specified position inside the heat exchange module 20 through the support plate 1.

[0096] Combined with Figure 5 and Figure 6, a positioning structure 21 can also be provided on the inner wall surface of the blind tube 2. The temperature sensing detector 3 can include a temperature sensing probe 31. The temperature sensing probe 31 can be arranged inside the blind tube 2, and the temperature sensing probe 31 can cooperate with the positioning structure 21 to limit the depth of the temperature sensing probe 31 extending into the blind tube 2, or rather, to limit the depth of the temperature sensing probe 31 extending into the heat exchange module 20, so that the temperature sensing probe 31 can be stably installed at a specified position inside the heat exchange module 20, thereby accurately monitoring the temperature change of the phase change material in the specified area of the heat exchange module 20.

[0097] Please refer to Figure 6 , in some embodiments, the positioning structure 21 can include a positioning bump 211 provided on the inner wall surface of the blind tube 2, and the temperature sensing probe 31 can be clamped or abutted against the positioning bump 211.

[0098] Optionally, the inner wall surface of the blind tube 2 can protrude towards the side where the axis of the blind tube 2 is located to form a positioning bump 211. When installing the temperature sensing detector 3, insert the temperature sensing probe 31 into the tube body of the blind tube 2 from the tube orifice of the blind tube 2. As the temperature sensing probe 31 gradually extends in, the temperature sensing probe 31 can be clamped or abutted against the positioning bump 211, and the positioning bump 211 can prevent the temperature sensing probe 31 from continuing to extend into the blind tube 2, thereby fixing the temperature sensing probe 31 at a specified position in the blind tube 2. Also, since the blind tube 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 used to detect the temperature of the phase change material in the specified area. By providing the positioning bump 211 on the inner wall surface of the blind tube 2, the temperature sensing probe 31 can be conveniently positioned at the specified position.

[0099] Optionally, the positioning bump 211 extends in a circumferential direction of the blind tube 2 for one circle, so that an annular bump is formed on the inner wall surface of the blind tube 2. When the temperature sensing probe 31 is arranged inside the blind tube 2, the lower end of the temperature sensing probe 31 can be inserted into the annular bump and abutted against the annular bump, thereby positioning the temperature sensing probe 31 at the position where the positioning bump 211 is provided.

[0100] Optionally, a plurality of positioning bumps 211 can be provided on the inner wall surface of the blind tube 2. The plurality of positioning bumps 211 can be sequentially arranged at intervals in the circumferential direction of the blind tube 2, and a clamping groove can be formed between two adjacent positioning bumps 211. When the temperature sensing probe 31 is arranged inside the blind tube 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 bump 211 is provided.

[0101] Please refer to Figures 5 to 7, in some embodiments, the temperature sensor 3 can further include a sensor wire body 32. The sensor wire body 32 is partially inserted into the blind tube 2 and connected to the temperature sensing probe 31. And a position indication portion 321 is provided on the outer wall surface of the sensor wire body 32. When the temperature sensing probe 31 cooperates with the positioning structure 21, the position indication portion 321 is located at the orifice of the blind tube 2.

[0102] Specifically, the sensor wire body 32 usually includes a wire, can be connected to the temperature sensing probe 31, and is used to transmit the temperature signal detected by the temperature sensing probe 31. A part of the sensor wire body 32 is inserted into the blind tube 2. At this time, the blind tube 2 can also play a role in regularizing the sensor wire body 32 to prevent the sensor wire body 32 from swinging.

[0103] Optionally, a position indication portion 321 can be provided on the outer wall surface of the sensor wire body 32. The position indication portion 321 can extend along the length direction of the sensor wire body 32, and can flexibly adjust the length of the sensor wire body 32 between the position indication portion 321 and the temperature sensing probe 31 according to the distance between the orifice of the blind tube 2 and the positioning structure 21. So that when installing the temperature sensor 3, the installation state of the temperature sensing probe 31 can be judged by observing the position of the position indication portion 321.

[0104] Specifically, when installing the temperature sensor 3, the temperature sensing probe 31 can be first inserted into the blind tube 2. Subsequently, the sensor wire body 32 is gradually extended into the blind tube 2 to drive the temperature sensing probe 31 to further extend into the blind tube 2 until the sensor wire body 32 can no longer be extended into the blind tube 2. At this time, the installation state of the temperature sensing probe 31 can be judged according to the positional relationship between the position indication portion 321 and the blind tube 2.

[0105] More clearly, if at this time the position indication portion 321 is located at the orifice of the blind tube 2, it means 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 portion 321 and the orifice of the blind tube 2 at this time, it means that the temperature sensing probe 31 may be stuck somewhere in the blind tube 2 but has not extended into the positioning structure 21, and the temperature sensing probe 31 is not installed in place; if at this time the position indication portion 321 has extended into the interior of the blind tube 2, it means that the positioning structure 21 may have been damaged and cannot limit the temperature sensing probe 31, and the temperature sensing probe 31 is not installed in place.

[0106] Therefore, by observing the positional relationship between the position indication portion 321 and the orifice of the blind tube 2, it can be quickly and accurately judged whether the temperature sensing probe 31 is installed in place.

[0107] Optionally, the position indication portion 321 is a mark or feature. For example, the position indication portion 321 can be a color mark, a protrusion, a groove or other forms of marks.

[0108] Please refer toFigure 4 and Figure 5 In some embodiments, the temperature sensor 3 may further include a connector 33 disposed at the orifice of the blind tube 2. The sensor wire 32 passes through the connector 33 and is inserted into the blind tube 2. The connector 33 is used to lock or release the sensor wire 32.

[0109] Optionally, the connector 33 is installed at the orifice of the blind tube 2. When installing the temperature sensor 3, the sensor wire 32 passes through the connector 33 and is inserted into the blind tube 2 until the temperature sensing probe 31 cooperates with the positioning structure 21. At this time, the connector 33 can be locked. When the connector 33 is locked, it can fix the sensor wire 32 to prevent the sensor wire 32 from loosening or displacing in the blind tube 2, so that the temperature sensing probe 31 can be stably fixed in the blind tube 2 and accurately monitor the temperature change of the phase change material. And when it is necessary to maintain or replace the temperature sensing probe 31, simply loosen the connector 33, and the sensor wire 32 can be easily pulled out of the blind tube 2 without complex disassembly operations.

[0110] Please refer to Figure 7 In some embodiments, the connector 33 can include a base 331 and a fastening head 332. The base 331 is connected to the orifice of the blind tube 2. The fastening head 332 is in threaded cooperation with the base 331. The sensor wire 32 can sequentially pass through the fastening head 332 and the base 331, and by rotating the fastening head 332 relative to the base 331 to lock or release the sensor wire 32, the sensor wire 32 can be easily locked or released.

[0111] Specifically, the base 331 can adopt a size and shape matching the blind tube 2 so that the two can be firmly connected together, and the base 331 can also be connected to the support plate 1 so that the blind tube 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, and the first through hole 3310 can communicate with the blind tube 2.

[0112] The fastening head 332 is provided with a second through hole 3320. The second through hole 3320 is coaxially arranged with the first through hole 3310, and the second through hole 3320 is connected to the first through hole 3310 so that the sensor wire 32 can sequentially pass through the second through hole 3320 and the first through hole 3310 and be inserted into the blind tube 2.

[0113] Rotating the fastening head 332 relative to the base 331 can cause a threaded feeding or withdrawing action between the fastening head 332 and the base 331, and the fastening head 332 can lock or loosen the sensor wire body 32. More specifically, when the fastening head 332 is tightened, the fastening head 332 will approach the base 331, and sufficient frictional force will be generated after the fastening head 332 and the base 331 cooperate, so as to firmly lock the sensor wire body 32 in the blind tube 2. Conversely, when it is necessary to loosen the sensor wire body 32, only the fastening head 332 needs to be rotated in the reverse direction.

[0114] Optionally, the temperature sensing assembly 10 can further include heat transfer oil, which is a special lubricating oil used at high temperatures. The heat transfer oil can be disposed inside the blind tube 2, and the heat transfer oil can submerge the temperature sensing probe 31. By filling the blind tube 2 with the heat transfer oil, the gas isolation layer 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 measurement accuracy.

[0115] Combined with Figure 7 , optionally, the temperature sensing assembly 10 can further include a seal 4, and the seal 4 can be disposed between the sensor wire body 32 and the blind tube 2 to seal the gap between the sensor wire body 32 and the blind tube 2.

[0116] Specifically, the seal 4 is a component used to fill or seal the gap between two objects, usually made of rubber, plastic or other elastic materials. The seal 4 can increase the airtightness at the orifice of the blind tube 2, prevent the heat transfer oil inside the blind tube 2 from volatilizing to the external environment through the orifice, improve the stability of the heat transfer oil inside the blind tube 2, thereby increasing the measurement accuracy of the temperature sensing probe 31, and can 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.

[0117] Please refer to Figure 8 and Figure 9 , in some embodiments, the heat storage device 100 can include at least two temperature sensing assemblies 10. Taking the heat storage device 100 including two temperature sensing assemblies 10 as an example for illustration, 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.

[0118] Optionally, the first preset depth may be close to the top of the phase change material 50 for monitoring temperature changes in the area near the heat source. The second preset depth is different from the first preset depth and may be located in the middle or deeper position of the phase change material 50. Through such an arrangement, the temperature conditions in a wider area inside the phase change material 50 can be monitored, especially in areas where the temperature gradient may be large during the heat conduction process. Therefore, by setting the temperature sensing components 10 at different depths, temperature data of multiple layers inside the phase change material 50 can be obtained, thereby improving the monitoring accuracy of temperature changes during the entire heat storage process.

[0119] Please refer to Figure 10 , in some embodiments, the heat exchange module 20 can include a plurality of sub-heat exchangers 201. The plurality of sub-heat exchangers 201 can be arranged in parallel at intervals in sequence along the first direction. Figure 10 The X-axis direction in [[ ]] is the first direction. Such an arrangement helps to optimize the heat exchange efficiency, is convenient for installation and maintenance at the same time, and there is a gap between two adjacent sub-heat exchangers 201. The phase change material 50 can be filled in the gap between two adjacent sub-heat exchangers 201. The temperature sensing component 10 can be inserted into the phase change material 50 between two adjacent sub-heat exchangers 201. The temperature of the phase change material 50 between two adjacent sub-heat exchangers 201 can be detected through the temperature sensing component 10. At the same time, since the phase change material 50 is accompanied by a change in the phase state of the phase change material 50 during the heat storage - heat release process, such as 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 position of the temperature sensing probe 31 of the temperature sensing component 10 to shift. Therefore, by inserting the temperature sensing component 10 into the gap between two adjacent sub-heat exchangers 201, the influence on the detection position accuracy of the temperature sensing component 10 during the phase change of the phase change material 50 can be alleviated, and the reliability of temperature detection is improved.

[0120] Optionally, the sub-heat exchanger 201 is usually a finned tube heat exchanger. The finned tube heat exchanger improves the heat transfer capacity by installing heat transfer fins on the heat exchange tubes.

[0121] Please refer to Figure 10 and Figure 11 , in some embodiments, the heat storage device 100 can further include a sensor mounting plate 40. The sensor mounting plate 40 can be fixedly arranged on the top of the sub-heat exchanger 201. A plurality of temperature sensing components 10 can be arranged on the sensor mounting plate 40.

[0122] Optionally, the sensor mounting plate 40 is provided with a plurality of receiving holes 401. The plurality of receiving holes 401 are arranged at intervals in sequence along the second direction. Figure 10The Y-axis direction in it is the second direction, the second direction intersects with the first direction, and each accommodation hole 401 is correspondingly arranged with the gaps between two adjacent sub-heat exchangers 201. When the temperature sensing component 10 is inserted into the accommodation hole 401, the temperature sensing component 10 can extend into the gaps between two adjacent sub-heat exchangers 201, so that the temperature sensing component 10 can measure the temperature of the phase change material 50 between two adjacent sub-heat exchangers 201. Therefore, by arranging the sensor mounting plate 40, multiple temperature sensing components 10 can be conveniently installed at the specified positions, so that multiple temperature sensing components 10 can accurately monitor the temperature changes of the phase change material 50 at each position.

[0123] Please refer to Figure 12 , in some embodiments, the heat storage device 100 can further include a pipeline structure 30, and the pipeline structure 30 can connect each sub-heat exchanger 201, so as to transport the fluid to each sub-heat exchanger 201 to realize the exchange and transfer of thermal energy.

[0124] The pipeline structure 30 includes 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-duct structure. The manifold 301 has a plurality of pipe orifices. One end of the delivery pipe 302 is communicated with the sub-heat exchanger 201, and the other end of the delivery pipe 302 is communicated with the manifold 301, so that the manifold 301 can collect the fluid from each sub-heat exchanger 201, and realize the transportation of the fluid to each sub-heat exchanger 201 through the delivery pipe 302 to realize the heat exchange.

[0125] Optionally, the pipeline structure 30 includes four manifolds 301, and the four manifolds 301 respectively have an energizing inlet 3011, an energizing outlet 3012, a discharging inlet 3013 and a discharging outlet 3014. The sub-heat exchanger 201 has an energizing flow path 202 and a discharging flow path 203. The energizing inlet 3011, the energizing flow path 202 and the energizing outlet 3012 are communicated in sequence, and the discharging inlet 3013, the discharging flow path 203 and the discharging outlet 3014 are communicated in sequence.

[0126] Specifically, the delivery pipe 302 includes an input pipe and an output pipe. Each sub-heat exchanger 201 is respectively communicated with the corresponding manifold 301 through a group of input pipes and output pipes to form an energizing flow path 202 and a discharging flow path 203. The main functions of the input pipe and the output pipe are to transport the fluid from the manifold 301 to the sub-heat exchanger 201 and transport the fluid that has undergone heat exchange from the sub-heat exchanger 201 back to the manifold 301.

[0127] More specifically, each sub-heat exchanger 201 is connected to the corresponding manifold 301 through one or more input pipes, and the input pipes are responsible for transporting the 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 pipes are responsible for transporting the fluid that has undergone heat exchange from the sub-heat exchanger 201 back to the manifold 301, so as to collect and transport the fluid back to the manifold 301 for further processing or recycling.

[0128] Combined with Figure 2 As shown, the manifold 301 includes a main pipe 304, a collecting pipe 305, a joint pipe 306 and a connection nut 307. One end of the main pipe 304 is connected to one end of the collecting pipe 305. One end of the joint pipe 306 is connected to the other end of the collecting pipe 305, and the other end of the joint pipe 306 is connected to the connection nut 307. Moreover, the radial dimension of the end of the joint pipe 306 connected to the collecting pipe 305 is smaller than the radial dimension of the end of the joint pipe 306 connected to the connection nut 307.

[0129] It should be noted that since the radial dimension of the connection nut 307 is relatively large, if the connection nut 307 is directly connected to one end of the collecting pipe 305, it will cause the radial dimension of the collecting pipe 305 to be relatively large. However, the radial dimension at the connection between the collecting pipe 305 and the main pipe 304 should not be too large. Therefore, by setting the joint pipe 306 with different radial dimensions at both ends to connect the collecting pipe 305 and the connection nut 307, it is possible to connect the connection nut 307 while making the size of the collecting pipe 305 smaller than the size of the connection nut 307.

[0130] Combined with Figure 10 As shown, there is a gap between the manifold 301 and the top of the sub-heat exchanger 201. The sensor mounting plate 40 can be arranged between the manifold 301 and the sub-heat exchanger 201, and the temperature sensing component 10 is located on the side of the manifold 301, so that the space can be fully utilized to install the temperature sensing component 10.

[0131] Please refer to Figure 12 , in some embodiments, the pipeline structure 30 can further include a manifold fixing member 70. The manifold fixing member 70 can be installed on the top of the sub-heat exchanger 201, and the manifold fixing member 70 is provided with a plurality of mounting holes 700. A plurality of manifolds 301 are respectively arranged in the plurality of mounting holes 700, so that there is a gap between the manifold 301 and the top of the sub-heat exchanger 201, and the sensor mounting plate 40 can be arranged at the gap between the manifold 301 and the sub-heat exchanger 201.

[0132] Combined with Figure 13, specifically, the manifold fixture 70 can include a first fixing plate 701 and a second fixing plate 702. The first fixing plate 701 can be connected to the top of one of the outermost sub-heat exchangers 201 among the multiple sub-heat exchangers 201. A plurality of first avoiding grooves are provided on the first fixing plate 701, and the plurality of first avoiding grooves can be arranged at intervals along the second direction. One end of the manifold 301 can be arranged in the first avoiding grooves. The second fixing plate 702 can be connected to the first fixing plate 701, and a plurality of second avoiding grooves are provided on the second fixing plate 702. 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 in one-to-one correspondence with the plurality of first avoiding grooves. Moreover, the second avoiding grooves can form mounting holes 700 for accommodating the manifold 301 together with the corresponding first avoiding grooves, so that the first fixing plate 701 and the second fixing plate 702 can clamp the manifold 301, thereby fixing the manifold 301 between the first fixing plate 701 and the second fixing plate 702, which is not only firmly fixed but also saves space.

[0133] Optionally, first fixing holes 7011 are respectively provided at opposite ends of the first fixing plate 701 along the second direction. By inserting screw connectors into the first fixing holes 7011, the first fixing plate 701 can be connected to the sub-heat exchanger 201.

[0134] Optionally, clamping members 7012 are respectively provided at opposite ends of the first fixing plate 701 along the second direction. Clamping holes can be provided on opposite sides of the sub-heat exchanger 201 along the second direction. The clamping members 7012 can be engaged with the clamping holes, so that the first fixing plate 701 is clamped to the sub-heat exchanger 201. Thus, when the installer installs the first fixing plate 701, there is no need to hold the first fixing plate 701 by hand. The installer only needs to engage the first fixing plate 701 with the side plate 2012, which is very convenient for installation.

[0135] Please refer to Figure 12 、 Figure 14 and Figure 15 , in some embodiments, the pipeline structure 30 further includes a plurality of three-way connectors 303. One end of each three-way connector 303 can be connected to a delivery pipe 302, and the other two ends of each three-way connector 303 can be respectively communicated with two sub-heat exchangers 201. Thus, by providing the three-way connectors 303, the number of delivery pipes 302 can be reduced, so that there can be more free space at the position where the pipeline structure 30 is located, and the free space can facilitate the arrangement of the temperature sensing assembly 10.

[0136] Optionally, the three-way pipe joint 303 has a first connection hole, a second connection hole, and a third connection hole. The first connection hole communicates with the delivery pipe 302, and the second connection hole and the third connection hole respectively communicate with two sub-heat exchangers 201. Among them, the axis of the first connection hole is arranged in the vertical direction, so that when the delivery pipe 302 communicates with the first connection hole, the delivery pipe 302 needs to protrude upward by a part and then bend downward to communicate with the first connection hole. The protruding part of the delivery pipe 302 can form an avoidance space, and the avoidance space can facilitate the arrangement of the manifold 301. The axes of the second connection hole and the third connection hole are both arranged in the horizontal direction, so that the second connection hole and the third connection hole can be conveniently communicated with the two sub-heat exchangers 201, thereby reducing the number of delivery pipes 302, and the saved space can be used to install the temperature sensing component 10.

[0137] In some embodiments, the heat storage device 100 can include a plurality of temperature sensing components 10, and the plurality of temperature sensing components 10 can all be inserted into the phase change material 50 between two adjacent sub-heat exchangers 201, so as to realize the accurate measurement and monitoring of the temperature of the phase change material 50 at different depth positions.

[0138] Optionally, two adjacent sub-heat exchangers 201 are set as a pair, and a plurality of temperature sensing components 10 can be inserted into the gap between a pair of sub-heat exchangers 201, and the plurality of temperature sensing components 10 are uniformly arranged along the depth direction of the phase change material 50 to cover each position from the surface layer to the deep layer, so that the plurality of temperature sensing components 10 can more comprehensively measure the temperature distribution of the phase change material 50 at different depths.

[0139] Please refer to Figure 10 , in some embodiments, the sub-heat exchanger 201 can include a heat exchange main body 2011 and side plates 2012. The heat exchange main body 2011 is used for heat exchange with the phase change material 50. One side plate 2012 is respectively arranged on the opposite sides of the heat exchange main body 2011 along the second direction, and the temperature sensing component 10 can be arranged on the side plate 2012, so that the temperature sensing component 10 can be installed more firmly.

[0140] Combined with Figure 10 and Figure 16 As shown in, the heat storage device 100 further includes a gap retainer 90. The gap retainer 90 can be connected to the side plates 2012 of a plurality of sub-heat exchangers 201, so that the plurality of sub-heat exchangers 201 can be sequentially arranged at intervals along the first direction, and the temperature sensing component 10 is arranged on the gap retainer 90, so that the temperature sensing component 10 can be smoothly inserted into the gap between two adjacent sub-heat exchangers 201.

[0141] Combined with Figure 17 and Figure 18 As shown in, in some embodiments, the gap retainer 90 can include a first connecting member 901 and a second connecting member 902.

[0142] Specifically, the first connecting member 9011 can be arranged at the bottom of the sub-heat exchanger 201, and the first connecting member 9011 can include a first plate body 9011 and a plurality of first fixing parts 9012 arranged on the first plate body 9011. The first plate body 9011 can be arranged to extend along a first direction, and the plurality of first fixing parts 9012 can be arranged at intervals in sequence along the first direction, so that the plurality of first fixing parts 9012 can be arranged in the same direction as the plurality of sub-heat exchangers 201. Thus, the first fixing parts 9012 can be connected to the bottoms of the corresponding side plates 2012, so that the first connecting member 9011 can connect the bottoms of the plurality of sub-heat exchangers 201 in sequence.

[0143] The second connecting member 902 can be arranged at the top of the sub-heat exchanger 201, and the second connecting member 902 can include a second plate body 9021 and a plurality of second fixing parts 9022 arranged on the second plate body 9021. The second plate body 9021 can also be arranged to extend along the first direction, and the plurality of second fixing parts 9022 can be arranged at intervals in sequence along the first direction, so that the plurality of second fixing parts 9022 can be arranged in the same direction as the plurality of sub-heat exchangers 201. Thus, the second fixing parts 9022 can be connected to the tops of the corresponding side plates 2012, so that the second connecting member 902 can connect the tops of the plurality of sub-heat exchangers 201 in sequence.

[0144] Therefore, the plurality of sub-heat exchangers 201 can be constrained and fixed by the first connecting member 9011 and the second connecting member 902. This not only limits the gap between two adjacent sub-heat exchangers 201, but also assembles the plurality of sub-heat exchangers 201 into a whole. And by setting the distance between two adjacent first fixing parts 9012 and the distance between two adjacent second fixing parts 9022, it is easy to control the size of the gap between two adjacent sub-heat exchangers 201, and it is also convenient to arrange the temperature sensing component 10 between two adjacent sub-heat exchangers 201.

[0145] Combined with Figure 10 and Figure 18 As shown, in some embodiments, the heat storage device 100 can further include a protection component 80. The protection component 80 is arranged at the bottom of the plurality of sub-heat exchangers 201, and the protection component can also be connected to the bottoms of the plurality of side plates 2012.

[0146] 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 intervals along a second direction on the opposite sides of the plurality of sub-heat exchangers 201. The protection components 80 can be respectively connected to the bottoms of the plurality of side plates 2012. Thus, the protection components 80 can form a protective layer at the bottom of the plurality of sub-heat exchangers 201, and the protection components 80 can prevent the bottoms of the sub-heat exchangers 201 from being knocked and damaged.

[0147] Optionally, the protection component 80 can be bent and extended towards the pipeline structure 30 to form a protective layer at the bottom of the pipeline structure 30, which can prevent the pipeline structure 30 from being knocked and damaged, especially reducing the installation risk of the pipeline structure 30 during the hoisting process.

[0148] Combined Figure 18 , in some embodiments, the protection component 80 includes a protection plate 801, the protection plate 801 is located at the bottom of the sub-heat exchanger 201, and the protection plate 801 is connected to the side plate 2012 of the sub-heat exchanger 201.

[0149] Optionally, a plurality of second fixing holes 802 and a plurality of relief holes 803 are provided on the protection plate 801, and the plurality of second fixing holes 802 and the plurality of relief holes 803 can be arranged in one-to-one correspondence. Taking the second fixing hole 802 as a threaded hole as an example, a screw connector can be inserted into the second fixing hole 802 from the relief hole 803, so that the protection plate 801 is connected to the side plate 2012, and the protection plate 801 wraps the bottom of the pipeline structure 30 to play a protective role. The provision of the relief hole 803 can facilitate the insertion of the screw connector into the second fixing hole 802, making the installation more convenient.

[0150] Please refer to Figures 19 to 21 , in some embodiments, the housing 60 can include an outer housing 601 and an inner housing 602, the inner housing 602 is disposed inside the outer housing 601, and a heat exchange module 20 and a phase change material 50 are provided inside the inner housing 602. A wire management port 6025 and an outlet pipe port 6022 can be provided at the top of the inner housing 602.

[0151] Optionally, the housing 60 can include an outer housing 601 and an inner housing 602, the inner housing 602 can be disposed inside the outer housing 601, and the inner housing 602 can have a receiving cavity 6021. A plurality of sub-heat exchangers 201 can be disposed in the receiving cavity 6021, and a phase change material 50 is provided in the receiving cavity 6021. The inner housing 602 can form a closed receiving cavity 6021, which can facilitate the heat exchange between the plurality of sub-heat exchangers 201 and the phase change material 50 in the receiving cavity 6021. The pipeline structure 30 is partially disposed in the receiving cavity 6021, and the other part of the pipeline structure 30 can extend out of the inner housing 602 from the outlet pipe port 6022 and is located between the inner housing 602 and the outer housing 601.

[0152] Among them, the temperature sensing component 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 disposed in the phase change material 50, and the wiring terminal 34 can extend out of the inner housing 602 from the wire management port 6025, so that the wiring terminal is located between the inner housing 602 and the outer housing 601, which can facilitate the connection of the wiring terminal 34 to an external circuit.

[0153] Please refer toFigures 22 to 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 to say, there is a gap between the top of the outer shell 601 and the top of the inner shell 602, and this gap forms the installation space 6001. The terminal block 34 can be located in the installation space 6001. There is a wire passing hole 6020 on the outer shell 601, and the wire passing hole 6020 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 be connected to the terminal block 34.

[0154] Optionally, there is a wire passing hole 6020 on the side of the outer shell 601, and there is a wire management port 6025 on the top surface of the inner shell 602. The terminal block 34 can extend from the wire management port 6025 into the installation space 6001, and the external wire can extend into the installation space 6001 from the side of the outer shell 601 to be connected to the terminal block 34.

[0155] Please refer to Figure 22 、 Figures 23 to 25 , in some embodiments, the outer shell 601 is further provided with a pipe passing hole 6010 communicating with the installation space 6001. Part of the pipeline structure 30 can first pass through the outlet pipe orifice 6022, extend from the inner shell 602 into the installation space 6001, and then extend out of the outer shell 601 from the pipe passing hole 6010. By providing the outlet pipe orifice 6022 and the pipe passing hole 6010, it is convenient for the pipeline structure 30 to extend out and for the pipeline structure 30 to be connected to the external pipeline.

[0156] Please refer to Figure 23 , in some embodiments, the outer shell 601 can include a plurality of outer side covers 6011, an outer top cover 6012, and an outer bottom plate 6013. The plurality of outer side covers 6011 can be sequentially arranged around the periphery 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 to the outer top cover 6012. The outer bottom plate 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 to the outer bottom plate 6013, so that the outer shell 601 can be assembled together.

[0157] Optionally, the shape of the outer shell 601 is a cube. The outer shell 601 includes four outer side covers 6011, and the four outer side covers 6011 enclose a square frame structure. The outer top cover 6012 and the outer bottom plate 6013 are respectively arranged on the top and bottom of the plurality of outer side covers 6011.

[0158] When actually assembling the housing 601, the two outer covers 6011 are first vertically arranged on the sides of the inner housing 602, then the two outer covers 6011 are connected, and then the remaining outer covers 6011 are sequentially connected together. However, the outer cover 6011 is very thin, and the vertically arranged outer cover 6011 is prone to tipping over, and the installer needs to hold the outer cover 6011 with one hand, resulting in inconvenient assembly of the housing 601.

[0159] Combined with Figure 23 and Figure 25 As shown, in the embodiments of the present application, the housing 60 can further include a hanging portion 604 and a fixing member 605. The fixing member 605 is arranged on the top of the inner housing 602, and the hanging portion 604 is arranged on the side surface of the outer cover 6011. When the outer cover 6011 is vertically arranged on the side of the inner housing 602, the side of the outer cover 6011 provided with the hanging portion 604 faces the inner housing 602, and the hanging portion 604 is clamped with the fixing member 605, so as to prevent the outer cover 6011 from tipping over, enabling the installer not to hold the outer cover 6011 with one hand, and making the assembly of the housing 601 more convenient.

[0160] Please refer to Figure 25 , in some embodiments, the side of the outer cover 6011 can be provided with a bending portion 6014, and in two adjacent outer covers 6011, two adjacent bending portions 6014 on one of the outer covers 6011 are connected, and the connected two bending portions 6014 form a right-angle portion 6015 at the connection. There is a gap between two adjacent bending portions 6014 on the other outer cover 6011, and an assembly groove 6016 is formed at the gap between the two spaced bending portions 6014. The right-angle portion 6015 can be installed in the assembly groove 6016, and installing the right-angle portion 6015 in the assembly groove 6016 can play a role of temporary fixation, enabling two adjacent outer covers 6011 to be closely attached together, thus forming a triangular structure, making the two outer covers 6011 more stable when arranged vertically, and further facilitating the installer to assemble the housing 601.

[0161] Optionally, the outer cover 6011 has a square structure, and bending portions 6014 are provided on all four sides of the outer cover 6011. The bending portions 6014 extend along the sides of the outer cover 6011, and all four bending portions 6014 are bent towards the same side. In two adjacent outer covers 6011, two adjacent bending portions 6014 on one of the outer covers 6011 are connected, and there is a gap between two adjacent bending portions 6014 on the other outer cover 6011. The connected two bending portions 6014 form a right-angle portion 6015 at the connection, and an assembly groove 6016 is formed at the gap between the two spaced bending portions 6014.

[0162] Please refer to Figure 26 , in some embodiments, a folding portion 6017 is further provided on the bending portion 6014. The folding portion 6017 can be disposed opposite to the outer cover 6011, and a side fixing hole 6018 is provided on the outer cover 6011. The folding portion 6017 can be disposed opposite to the side fixing hole 6018, so that when a screwing member is inserted into the side fixing hole 6018, it can prevent the screwing member from contacting the components inside the housing 601 and prevent the components inside the housing 601 from being damaged by the screwing member. The screwing member is a bolt, a screw, etc.

[0163] Optionally, the component can be a heat insulation structure 603, and the folding portion 6017 can prevent the screwing member from damaging the heat insulation structure 603.

[0164] Please refer to Figure 19 , Figure 20 and Figure 27 , in some embodiments, an outer support leg 6019 can be provided on the outer chassis 6013. The outer support leg 6019 is located on the bottom surface of the outer chassis 6013, and the outer support leg 6019 can play a role in supporting the housing 601.

[0165] Please refer to Figure 20 and Figure 23 , in some embodiments, the housing 60 further includes a heat insulation structure 603. The heat insulation structure 603 is disposed between the inner housing 602 and the outer housing 601. The heat insulation structure 603 can play a role in heat insulation, can reduce the transfer of heat from the inside of the inner housing 602 to the outside, and further can prevent the heat stored in the phase change material 50 from being dissipated, and further improve the heat exchange efficiency between the sub-heat exchanger 201 and the phase change material 50.

[0166] Optionally, the heat insulation structure 603 can cover the outer wall surface of the inner housing 602, and the heat insulation structure 603 can cover the top, bottom and periphery of the inner housing 602. That is to say, the heat insulation structure 603 wraps the inner housing 602. A part of the fixing member 605 is disposed between the heat insulation structure 603 and the inner housing 602, and the other part of the fixing member 605 extends out of the heat insulation structure 603 and is clamped with the hanging portion 604. The heat insulation structure 603 plays a role in comprehensive heat insulation.

[0167] Please refer to Figure 28 , in some embodiments, the fixing member 605 includes an inner connecting portion 6051, an intermediate portion 6052 and an outer connecting portion 6053 that are connected in sequence.

[0168] Specifically, the inner connection portion 6051 is arranged between the thermal insulation structure 603 and the top of the inner shell 602, the inner connection portion 6051 is connected to the top of the inner shell 602, and the inner connection portion 6051 also extends to the edge of the inner shell 602, the middle portion 6052 is connected to the inner connection portion 6051 at an angle, so that the middle portion 6052 can be inserted into the thermal insulation structure 603, one end of the middle portion 6052 extends out of the thermal insulation structure 603, the outer connection portion 6053 is connected to the middle portion 6052 at an angle, and the outer connection portion 6053 is extended in a direction close to the outer cover 6011, so that one end of the outer connection portion 6053 can be snapped into the hanging portion 604.

[0169] See also Figure 23 In some embodiments, the heat preservation structure 603 covering the top of the inner shell 602 can be provided with a plurality of avoidance holes 6030, and the avoidance holes 6030 are used for the pipelines connected to the sub-heat exchanger 201 to extend out.

[0170] Specifically, a plurality of collecting pipes 301 are arranged on the top of the sub-heat exchanger 201, and the collecting ports of the plurality of collecting pipes 301 can extend from the avoidance hole 6030. To be more clear, there are four collecting pipes 301, and the four collecting pipes 301 respectively have a charging inlet 3011, a charging outlet 3012, a discharging inlet 3013 and an discharging outlet 3014. The charging inlet 3011, the charging outlet 3012, the discharging inlet 3013 and the discharging outlet 3014 extend from the four avoidance holes 6030 respectively, which can facilitate the connection between the heat source unit and the charging inlet 3011 and the charging outlet 3012, and facilitate the connection between the water utilization unit and the discharging inlet 3013. The discharging outlet 3014 can extend to provide hot water for the user.

[0171] See also Figure 23 and 24 In some embodiments, the thermal insulation structure 603 can include a first thermal insulation layer 6031 and a second thermal insulation layer 6032. The first thermal insulation layer 6031 can be disposed on the outer wall surface of the inner shell 602, and the second thermal insulation layer 6032 is disposed on the side of the first thermal insulation layer 6031 away from the inner shell 602. The thermal insulation coefficient of the first thermal insulation layer 6031 is greater than that of the second thermal insulation layer 6032, and the inner shell 602 can be better insulated. The structural strength of the second thermal insulation layer 6032 is better than that of the first thermal insulation layer 6031. Although the thermal insulation coefficient of the second thermal insulation layer 6032 is smaller than that of the first thermal insulation layer 6031, the second thermal insulation layer 6032 can protect the first thermal insulation layer 6031 and prevent the first thermal insulation layer 6031 from being damaged.

[0172] Specifically, the thermal insulation structure 603 can include six first thermal insulation layers 6031, which are respectively arranged on the six outer wall surfaces of the inner shell 602. The thermal insulation structure 603 can also include six second thermal insulation layers 6032, which are arranged in one-to-one correspondence with the six first thermal insulation layers 6031 and are located on the top surface of the inner shell 602. The first thermal insulation layer 6031 and the second thermal insulation layer 6032 are both provided with avoidance holes 6030. The avoidance holes 6030 on the first thermal insulation layer 6031 and the avoidance holes 6030 on the second thermal insulation layer 6032 are coaxially arranged, which can facilitate the collection port of the manifold 301 to extend out.

[0173] Please refer to Figure 21 , in some embodiments, a plurality of inner support feet 6023 are provided at the bottom of the inner shell 602. The inner support feet 6023 can be connected to the bottom plate of the inner shell 602, and two inner support feet 6023 can define a placement space, which can be used to accommodate the thermal insulation structure 603, facilitating the installation of the thermal insulation structure 603.

[0174] Specifically, four inner support feet 6023 are provided at the bottom of the inner shell 602. The four inner support feet 6023 are located at the four corners of the bottom of the inner shell 602, and two inner support feet 6023 form a pair. A pair of inner support feet 6023 can define a placement space. The first thermal insulation layer 6031 located at the bottom of the inner shell 602 can be arranged in the two placement spaces, so that the first thermal insulation layer 6031 is firmly arranged at the bottom of the inner shell 602. When installing the second thermal insulation layer 6032 at the bottom of the inner shell 602, it is only necessary to attach the second thermal insulation layer 6032 to the first thermal insulation layer 6031, which is very convenient for installation.

[0175] Please refer to Figure 29 and Figure 30 , in some embodiments, reinforcing ribs 6024 are provided on the circumferential side wall of the inner shell 602. The reinforcing ribs 6024 are arranged in a circle along the circumference of the inner shell 602, and the reinforcing ribs 6024 can increase the structural strength of the inner shell 602.

[0176] Optionally, the inner shell 602 is a stainless steel inner liner, which expands when heated. By providing the reinforcing ribs 6024, the rigidity and stability of the stainless steel inner liner can be increased. The main function of the reinforcing ribs 6024 is to resist the deformation force generated when the inner shell 602 expands due to heat.

[0177] Specifically, when the inner shell 602 expands due to heat, an outward expansion force will be generated. Without sufficient support, this force may cause the inner shell 602 to deform or rupture. By providing the reinforcing ribs 6024 on the side wall of the inner shell 602, it is like adding multiple "support points" to the inner shell 602, so that the reinforcing ribs 6024 can disperse and resist this expansion force, thereby maintaining the shape and stability of the inner shell 602.

[0178] Combined with Figure 30 As shown, at least two reinforcing ribs 6024 are provided on the circumferential side wall of the inner shell 602, and the two reinforcing ribs 6024 are arranged at intervals in the up and down direction. By providing the two reinforcing ribs 6024, the inner shell 602 can be evenly supported and strengthened in all directions, and can effectively resist the outward expansion force generated when the inner shell 602 expands due to heat, maintaining the shape and dimensional stability of the inner shell 602.

[0179] In some embodiments, the temperature sensing component 10 can also be installed on the top of the inner shell 602, and a hole for the temperature sensing component 10 to extend into the inner shell 602 is provided on the top of the inner shell 602, so that the temperature sensing component 10 can be inserted into the phase change material 50 to measure the temperature of the phase change material 50.

[0180] Please refer to Figure 31 , in some embodiments, a heating and ventilation system 200 provided by the embodiments of the present application is provided. The heating and ventilation system 200 includes a heat source module 300, a first utilization unit 400, and a heat storage device 100.

[0181] Specifically, the heat exchange module 20 can include a plurality of energy charging flow paths 202 and a plurality of energy discharging flow paths 203. The plurality of energy charging flow paths 202 and the plurality of energy discharging flow paths 203 can be arranged alternately in sequence along the first direction. The heat source module 300 can be communicated with the energy charging flow path 202, and the hot fluid in the heat source module 300 can flow into the energy charging flow path 202. The energy charging flow path 202 can transfer heat to the phase change material 50, and the first utilization unit 400 can be communicated with the energy discharging flow path 203. The first utilization unit 400 can be a water utilization unit. After the cold water flows into the energy discharging flow path 203, it can absorb the heat of the phase change material 50. After the cold water is heated into hot water, it can be used by users, so that clean hot water can be provided to users in real time without setting up a water tank to store hot water.

[0182] Further, please refer to Figure 2 , Figure 8 and Figure 12 , the heat exchange module 20 is buried in the phase change material 50, and the flow direction of the hot fluid in the energy charging flow path 202 is along the depth direction of the phase change material 50 (i.e., Figure 2Above the direction opposite to the Z-axis arrow in the figure), it flows from above to below in the depth direction of the phase change material 50. The flow direction of the cold water in the exothermic flow path 203 is from below in the depth direction of the phase change material 50 to above in the depth direction of the phase change material 50, that is, the flow direction of the endothermic flow path 202 is opposite to the flow direction of the exothermic flow path 203. In this embodiment, the phase state change of the phase change material 50 during endothermic-exothermic conversion is between solid and liquid. During the endothermic process, along the flow direction in the endothermic flow path 202, the phase change material 50 starts to undergo a phase change from above in the depth direction, melting from solid state to liquid state until the phase change material 50 below in the depth direction melts into a liquid state, completing the entire endothermic process. During the endothermic process, along the flow direction of the endothermic flow path 202, a temperature gradient is generated in the phase change material 50 along the depth direction, and the temperature decreases from high to low along the depth direction. Among them, the flow direction of the endothermic flow path 202 is opposite to the flow direction of the exothermic flow path 203. The endothermic flow path 202 defines a temperature gradient generated by the phase change material 50 along the depth direction, while the exothermic loop is opposite to the endothermic loop direction, so that the cold water to be heated flows from the area with a lower temperature of the phase change material 50 to the area with a higher temperature, so that the water in the exothermic loop is always in a state of absorbing heat from the phase change material 50, ensuring the heating efficiency of the terminal water use.

[0183] The heat storage device 100 can include at least two temperature sensing components 10. One of the temperature sensing components 10 can be inserted into a first preset depth within the phase change material 50, and the other temperature sensing component 10 can be inserted into a second preset depth within the phase change material 50. During the phase change process of the phase change material 50, a temperature gradient is defined along its own depth direction, and this temperature gradient has a high-temperature region and a low-temperature region. One of the two temperature sensing components 10 can extend into the high-temperature region to detect the first temperature of the phase change material 50 located in the high-temperature region, and the other temperature sensing component 10 of the two temperature sensing components 10 can extend into the low-temperature region to detect the second temperature of the phase change material 50 located in the low-temperature region.

[0184] , in the present application, the high-temperature region and the low-temperature region are relatively high temperature and relatively low temperature. That is to say, the high-temperature region of the phase change material 50 has a higher temperature than other regions of the phase change material 50, and the low-temperature region of the phase change material 50 has a lower temperature than other regions of the phase change material 50. Combined with Figure 1, in this embodiment, along the depth direction, it is defined that the upper edge to the lower edge of the phase change material 50 has a depth dimension D. The range of the high-temperature region Hd is 0 < Hd ≤ 0.05D, and the range of the low-temperature region Ld is 0.85D ≤ Ld ≤ D. One of the two temperature sensing components 10 is inserted into the high-temperature region, that is, the temperature sensing probe 31 of this temperature sensing component 10 is in the region range of 0 to 0.05D. The other of the two temperature sensing components 10 is inserted into the low-temperature region. And to ensure that the temperature sensing probe 31 can work normally, the temperature sensing probe 31 of this temperature sensing component 10 is in the region range of 0.85D to 0.95D (including 0.85D and 0.95D), so that a certain gap is maintained between the temperature sensing probe 31 with the deepest insertion depth and the bottom wall of the inner shell 602, preventing the accuracy of the temperature detected by the temperature sensing probe 31 from decreasing.

[0185] Optionally, the HVAC system 200 further includes a control module. The control module is connected to the heat source module 300. The control module controls the working mode of the heat storage module 100 according to the first temperature detected by the temperature sensing component 10 in the high-temperature region and the second temperature detected by the temperature sensing component 10 in the low-temperature region. When the first temperature is lower than the first preset temperature, the control module can turn on the heat source module 300 and transfer heat to the phase change material 50 through the charging flow path 202, starting the charging mode. The phase change material 50 absorbs heat and the temperature rises. When the second temperature is higher than the second preset temperature, the control module cuts off the charging mode, that is, closes the charging flow path 202. Through the first temperature and the second temperature measured by the two temperature sensing components 10, the timing of turning on the heat source module 300 can be easily grasped. Among the preset parameters, the first preset temperature parameter is less than the second preset temperature parameter. 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 °C as an example, the first preset temperature is set to (60 - k1) °C, where the value range of k1 is 0 < k1 ≤ 10 °C, and the second preset temperature is set to (60 + k2) °C, 0 < k2 ≤ 10 °C.

[0186] Optionally, in another embodiment, which is different from the above embodiment, the direction of the charging flow path 202 is opposite to the depth direction. That is to say, the charging flow path 202 flows in 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. A temperature gradient is defined along the direction of the charging flow path 202. The temperature of the phase change material 50 changes from high to low from the lower part to the upper part in the depth direction. In this embodiment, the high-temperature region of the phase change material 50 is 0.95D ≤ Hd ≤ D. The temperature sensing component 10 in the high-temperature region is inserted into the high-temperature region, and its temperature sensing probe 31 is in the region range of 0.95D to D (including 0.95D but not including D). A certain 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 region of the phase change material 50 is 0 < Ld ≤ 0.15D. The temperature sensing component 10 in the low-temperature region is inserted into the low-temperature region, and its temperature sensing probe 31 is in the region range of 0 to 0.15D (including 0.15D but not including 0).

[0187] Optionally, the heat source module 300 can include a main heat source unit and an auxiliary heat source unit. Both the main heat source unit and the auxiliary heat source unit can be connected to the charging flow path 202 and can transfer heat to the phase change material 50 through the charging flow path 202.

[0188] The main heat source unit can include one of a solar heat collection module, a water source heat exchange module, and an air source heat exchange module. Under the condition of allowing, it is preferred to use more environmentally friendly natural energy sources such as a solar heat collection module, a water source heat exchange module, and an air source heat exchange module to perform heat exchange with the phase change material 50, so as to save energy.

[0189] The auxiliary heat source unit includes an electric heating module. When the main heat source unit has insufficient energy supply, the auxiliary heat source unit can be used to provide energy to ensure the stability and continuity of the heat energy supply.

[0190] Please refer to Figure 31 , in some embodiments, the HVAC system 200 can further include a second utilization unit 500. The second utilization unit 500 can be connected to the heat source module 300 through a heat transfer pipeline. The heat transfer pipeline is also connected in parallel with the charging flow path 202, so that the second utilization unit 500 and the first utilization unit share the heat source module 300.

[0191] Optionally, the second utilization unit 500 is a temperature regulation module for regulating the indoor temperature, and the HVAC system 200 further has a first working mode and a second working mode.

[0192] When the HVAC system 200 is in the first working mode, the heat source module 300 can provide heat for 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 cold water, thereby providing hot water for users; when the HVAC system 200 is in the second working mode, the heat source module 300 can provide heat for the second utilization unit 500, so that the second utilization unit 500 can be used to adjust the indoor temperature.

[0193] In the drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components; in the description of the present application, it should be understood that if there are terms such as "upper", "lower", "left", "right", etc. indicating the orientation or positional relationship, it is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the positional relationship in the drawings are only for illustrative purposes and cannot be understood as a limitation of this patent. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific circumstances.

[0194] The above are only the preferred embodiments of the present application, and are not intended to limit the present application. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A heat storage device, characterized in that, Comprising a housing, wherein a heat exchange module and a phase change material are arranged inside the housing, the heat exchange module is buried in the phase change material, and the heat exchange module is thermally connected to the phase change material; at least one temperature sensing component, and the temperature sensing component is inserted into the phase change material to a preset depth.

2. The heat storage device according to claim 1, characterized in that, The temperature sensing component includes: a support plate, which is arranged on the heat exchange module, and the support plate has an assembly hole; a blind tube, which is inserted into the assembly hole and is used to extend into the phase change material, and a positioning structure is arranged on the inner wall surface of the blind tube; a temperature sensing detector, which includes a temperature sensing probe arranged inside the blind tube, and the temperature sensing probe cooperates with the positioning structure to define the preset depth at which the temperature sensing probe is inserted into the phase change material.

3. The heat storage device according to claim 2, characterized in that, The positioning structure includes positioning bumps arranged on the inner wall surface of the blind tube, and the temperature sensing probe is clamped or abutted against the positioning bumps.

4. The heat storage device according to claim 3, characterized in that, The positioning bumps extend in a circle along the circumferential direction of the blind tube; or a plurality of the positioning bumps are sequentially arranged at intervals along the circumferential direction of the blind tube.

5. The regenerative heat storage device according to claim 2, wherein, The temperature sensing detector further includes a sensor wire body, a part of the sensor wire body is inserted into the blind tube and is connected to the temperature sensing probe, and a position indication part is arranged on the outer wall surface of the sensor wire body. When the temperature sensing probe cooperates with the positioning structure, the position indication part is located at the pipe orifice of the blind tube.

6. The heat storage device according to claim 5, characterized in that, The temperature sensing detector further includes a connector, the connector is arranged at the pipe orifice of the blind tube, the sensor wire body passes through the connector and is inserted into the blind tube, and the connector is used to lock or loosen the sensor wire body.

7. The heat storage device according to claim 6, characterized in that, The connector includes a base and a fastening head, the base is connected to the pipe orifice of the blind tube and is provided with a first through hole communicating with the blind tube, the fastening head is in threaded cooperation with the base and is provided with a second through hole communicating with the first through hole, the sensor wire body sequentially passes through the second through hole and the first through hole and is inserted into the blind tube, and by rotating the fastening head relative to the base, the sensor wire body is locked or loosened.

8. The heat storage device according to claim 5, characterized in that, The temperature sensing component further includes a seal, and the seal is arranged between the sensor wire body and the blind tube to seal the gap between the sensor wire body and the blind tube.

9. The heat storage device according to claim 2, wherein The temperature sensing component further includes heat-conducting oil, the heat-conducting oil is arranged inside the blind tube, and the heat-conducting oil submerges the temperature sensing probe.

10. The heat storage device according to any one of claims 1 to 9, characterized in that, The heat storage device includes at least two of the temperature sensing components, and one of the temperature sensing components is inserted into the phase change material to a first preset depth, and the other temperature sensing component is inserted into the phase change material to a second preset depth.

11. The heat storage device according to any one of claims 1 to 9, characterized in that, The heat exchange module includes a plurality of sub-heat exchangers, the plurality of sub-heat exchangers are arranged in parallel at intervals in a first direction, and the phase change material is arranged in the gap between two adjacent sub-heat exchangers, and the temperature sensing component is inserted into the phase change material between two adjacent sub-heat exchangers.

12. The heat storage device according to claim 11, characterized in that, The heat storage device further includes a sensor mounting plate, the sensor mounting plate is fixedly arranged on the top of the sub-heat exchanger, and a plurality of the temperature sensing components are arranged on the sensor mounting plate.

13. The heat storage device according to claim 12, characterized in that, The heat storage device further includes a pipeline structure, which includes a manifold and delivery pipes. A plurality of the manifolds are arranged on the top of the sub-heat exchangers, and the plurality of manifolds are communicated with the plurality of sub-heat exchangers through the plurality of delivery pipes. The sensor mounting plate is disposed between the manifold and the sub-heat exchanger, and the temperature sensing assembly is located on the side of the manifold.

14. The heat storage device according to claim 13, characterized in that, The heat storage device further includes manifold fixing members, which are mounted on the top of the sub-heat exchangers. The manifold fixing members are provided with a plurality of mounting holes at intervals, and the plurality of manifolds are respectively disposed in the plurality of mounting holes, so that there is a gap between the manifold and the sub-heat exchanger. The sensor mounting plate is disposed at the gap between the manifold and the sub-heat exchanger.

15. The heat storage device according to claim 13, characterized in that, The pipeline structure further includes a plurality of three-way connectors. One end of each three-way connector is communicated with one delivery pipe, and the other two ends of each three-way connector are respectively communicated with two sub-heat exchangers.

16. The heat storage device according to claim 11, characterized in that, The heat storage device includes a plurality of the temperature sensing assemblies, and the plurality of temperature sensing assemblies are all inserted into the phase change material between two adjacent sub-heat exchangers.

17. The heat storage device according to claim 11, characterized in that, The sub-heat exchanger includes a heat exchange main body and side plates. The side plates are provided on one side of the heat exchange main body along a second direction, and the second direction intersects with the first direction. The temperature sensing assembly is disposed on the side plates.

18. The heat storage device according to claim 17, characterized in that, The heat storage device further includes a gap maintainer, which is connected to the side plates of the plurality of sub-heat exchangers, so that the plurality of sub-heat exchangers are arranged at intervals along the first direction. The temperature sensing assembly is disposed on the gap maintainer.

19. The heat storage device according to claim 18, characterized in that, The gap maintainer includes: A first connecting member, which is disposed at the bottom of the sub-heat exchanger. The first connecting member includes a first plate body and a plurality of first fixing portions provided on the first plate body. The plurality of first fixing portions are arranged at intervals along the first direction, and the first fixing portions are connected to the bottom of the corresponding side plates; and, A second connecting member, which is disposed at the top of the sub-heat exchanger. The second connecting member includes a second plate body and a plurality of second fixing portions provided on the second plate body. The plurality of second fixing portions are arranged at intervals along the first direction, and the second fixing portions are connected to the top of the corresponding side plates. The temperature sensing assembly is disposed on the second plate body.

20. The heat storage device according to claim 18, characterized in that, The heat storage device further includes a protection component, which is disposed at the bottom of the plurality of sub-heat exchangers, covers the gap maintainer, and is connected to the bottoms of the plurality of side plates.

21. The heat storage device according to claim 1, characterized in that, The housing includes an outer shell and an inner shell. The inner shell is disposed inside the outer shell, and the heat exchange module and the phase change material are disposed inside the inner shell. A wire management port and an outlet pipe are provided at the top of the inner shell; Wherein, the temperature sensing assembly includes a temperature sensing probe and a wiring terminal connected to the temperature sensing probe. The temperature sensing probe is disposed in the phase change material, the wiring terminal extends out of the inner shell from the wire management port, and the outlet pipe is used for the pipeline connected to the heat exchange module to extend out.

22. The heat storage device according to claim 21, characterized in that, 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, and the outer shell is provided with a wire hole connected to the installation space, the wire hole is used for external wires to be inserted into the installation space and connected to the wiring terminal.

23. The heat storage device according to claim 22, characterized in that, The shell is also provided with a pipe hole communicating with the installation space, and the pipe hole is used for allowing a pipe communicating with the heat exchange module to extend out.

24. The heat storage device according to claim 21, characterized in that, The outer shell includes a plurality of outer covers, an outer top cover and an outer bottom plate, wherein the plurality of outer covers are sequentially arranged around the circumference of the inner shell and connected to each other, the outer top cover is connected to the tops of the plurality of outer covers, and the outer bottom plate is connected to the bottoms of the plurality of outer covers; The shell further comprises a hanging part and a fixing piece, wherein the fixing piece is arranged at the top of the inner shell, and the hanging part is arranged on the side surface of the outer cover facing the inner shell, and the hanging part is snap-connected with the fixing piece.

25. The heat storage device according to claim 24, characterized in that, The side of the outer cover is provided with a bending portion, and in two adjacent outer covers, the two adjacent bending portions on one of the outer covers form a right-angle portion, and there is a gap between the two adjacent bending portions on the other outer cover and an assembly groove is formed, and the right-angle portion is installed in the assembly groove.

26. The heat storage device according to claim 25, characterized in that, The bending portion is further provided with a folding portion, the outer cover is provided with a side fixing hole, and the folding portion is arranged opposite to the side fixing hole.

27. The heat storage device according to claim 24, wherein, The outer chassis is provided with outer supporting feet.

28. The heat storage device according to claim 24, wherein The shell also includes a heat-insulating structure, which is arranged between the inner shell and the outer shell, and the heat-insulating structure covers the outer wall surface of the inner shell, a part of the fixing piece is arranged between the heat-insulating structure and the inner shell, and another part of the fixing piece extends out of the heat-insulating structure and is clamped with the hanging part.

29. The heat storage device according to claim 28, wherein, The fixing member includes an inner connecting portion, a middle portion and an outer connecting portion which are connected in sequence, the inner connecting portion is arranged between the thermal insulation structure and the top of the inner shell and is connected to the inner shell, the middle portion is connected to the inner connecting portion at an angle, and the middle portion is penetrated into the thermal insulation structure, the outer connecting portion is connected to the middle portion at an angle, and the outer connecting portion extends out of the thermal insulation structure and is clamped with the hanging portion.

30. The heat storage device according to claim 28, wherein, The heat preservation structure covering the top of the inner shell is provided with a plurality of avoidance holes, a part of the avoidance holes is used for the extension of the wiring terminals, and another part of the avoidance holes is used for the extension of the pipelines connected to the heat exchange module.

31. The heat storage device according to claim 28, wherein, The thermal insulation structure includes a first thermal insulation layer and a second thermal insulation layer, the first thermal insulation layer is arranged on the outer wall surface of the inner shell, the second thermal insulation layer is arranged on the side of the first thermal insulation layer away from the inner shell, and the first thermal insulation layer and the second thermal insulation layer located on the top of the inner shell are provided with the avoidance hole, and the avoidance hole on the first thermal insulation layer is coaxially arranged with the avoidance hole on the second thermal insulation layer.

32. The heat storage device according to claim 28, characterized in that, The bottom of the inner shell is provided with a plurality of inner supporting feet, and two of the inner supporting feet define a placement space, and the placement space is used to accommodate the heat preservation structure.

33. The heat storage device according to claim 21, characterized in that, A reinforcing rib is provided on the circumferential side wall of the inner shell, and the reinforcing rib is arranged in a circle along the circumference of the inner shell.

34. The heat storage device according to claim 33, characterized in that, At least two of the reinforcing ribs are provided on the circumferential side wall of the inner shell, and the two reinforcing ribs are arranged at intervals in the up and down directions.

35. The heat storage device according to claim 21, characterized in that, The temperature sensing component is installed at the top of the inner shell.

36. A heating, ventilation and air conditioning system, characterized in that, It includes a heat source module, a first utilization unit, and a heat storage device as described in any one of claims 1-35. The heat exchange module includes a charging flow path and a discharging flow path. The heat source module is connected to the charging flow path to form a charging loop, and the first utilization unit is connected to the discharging flow path to form a discharging loop. The heat storage device includes at least two of the temperature sensing components. One of the temperature sensing components is used to detect the first temperature at a first preset depth within the phase change material, and the other temperature sensing component is used to detect the second temperature at a second preset depth within 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 HVAC system according to claim 36, wherein, The HVAC system includes a control module, the control module is connected to the heat source module, and the control module is used to control the opening or closing of the charging loop according to the first temperature and the second temperature.

38. The HVAC system according to claim 37, wherein, The control module presets a temperature threshold. When the first temperature is less than the temperature threshold, the control module controls the charging loop to open. When the second temperature is greater than the temperature threshold, the control module controls the charging loop to close.

39. The HVAC system according to claim 36, characterized in that, The heat source module includes: A main heat source unit, which is connected to the charging flow path. The main heat source unit includes 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, which is connected to the charging flow path. The auxiliary heat source unit includes an electric heating module.

40. The HVAC system according to claim 36, characterized in that, The HVAC system further includes a second utilization unit. The heat source module is connected to the second utilization unit through a heat transfer pipeline, and the heat transfer pipeline is connected in parallel with the charging flow path.

41. The HVAC system according to claim 40, wherein, The HVAC system has: A first working mode. When the HVAC 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 HVAC system is in the second working mode, the heat source module provides heat for the second utilization unit.

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