Heat storage and exchange device and household appliance

Abstract

The utility model provides a heat storage and exchange device and a household appliance. The heat storage and exchange device comprises a shell provided with an inner cavity; the inner cavity is filled with the heat storage material; at least part of the heating body is arranged in the inner cavity, covered with the heat storage material and used for being electrically connected with an external power source and heating the heat storage material; at least part of the heat exchange pipe is arranged in the inner cavity and covered with the heat storage material, an inlet of the heat exchange pipe is used for inputting fluid to be heated, and an outlet of the heat exchange pipe is used for outputting heated fluid; and the heat exchange fins are located in the inner cavity and covered with the heat storage materials, and the heat exchange fins are connected with the heating body and the heat exchange pipes. The heat of the heating body can be quickly transferred to the heat storage material through the heat exchange fins, so that the heat storage efficiency is improved, and meanwhile, the heat of the heat storage material can be quickly transferred to the heat exchange pipes through the heat exchange fins, so that fluid to be heated is quickly heated, and the heat release efficiency is improved.

Description

Technical Field

[0001] The present application relates to the technical field of heat storage and heat exchange, and particularly to a heat storage and heat exchange device and a household appliance. Background Art

[0002] Energy storage technology can solve the contradiction between the mismatch of energy supply and demand in space and time, thereby improving energy utilization efficiency. As an energy transfer station, the heat storage and heat exchange device can store energy in the heat storage material during the idle time of the system, and extract the energy when the energy is insufficient during the operation of the system, and provide it as additional energy to the energy receptor.

[0003] However, the structure of the heat storage and heat exchange devices on the market is unreasonable, resulting in low heat storage and heat release efficiency of the heat storage and heat exchange devices. Summary of the Utility Model

[0004] Embodiments of the present application provide a heat storage and heat exchange device and a household appliance to solve the problem of low heat storage and heat release efficiency in the related art. The technical solutions are as follows:

[0005] In a first aspect, embodiments of the present application provide a heat storage and heat exchange device, including:

[0006] A housing having an inner cavity;

[0007] A heat storage material filled in the inner cavity;

[0008] A heating element, at least a part of which is disposed in the inner cavity, the heating element is covered by the heat storage material, the heating element is used for electrically connecting to an external power source, and the heating element is used for heating the heat storage material;

[0009] A heat exchange tube, at least a part of which is disposed in the inner cavity, the heat exchange tube is covered by the heat storage material, an inlet of the heat exchange tube is used for inputting a fluid to be heated, and an outlet of the heat exchange tube is used for outputting the heated fluid;

[0010] Heat exchange fins located in the inner cavity, the heat exchange fins are covered by the heat storage material, and the heat exchange fins connect the heating element and the heat exchange tube.

[0011] In an embodiment, the heat exchange fins are arranged along the width direction of the housing, a part of the heating element located in the inner cavity and a part of the heat exchange tube located in the inner cavity are both arranged along the length direction of the housing, and the heating element and the heat exchange tube both penetrate through the heat exchange fins.

[0012] In an embodiment, the number of the heat exchange fins is multiple, the multiple heat exchange fins are arranged at intervals along the length direction of the housing, and each heat exchange fin connects the heat exchange tube and the heating element.

[0013] In one embodiment, the heat exchange tube includes:

[0014] A plurality of heat exchange bodies located in the inner cavity, covered by the heat storage material, passing through the heat exchange fins, and connected end to end;

[0015] An inlet section exposed outside the housing, connected to the inlet of the heat exchange body at the head end of the plurality of heat exchange bodies, and having an inlet of the heat exchange tube;

[0016] And an outlet section exposed outside the housing, connected to the outlet of the heat exchange body at the tail end of the plurality of heat exchange bodies, and having an outlet of the heat exchange tube;

[0017] The heating element is disposed between the plurality of heat exchange bodies.

[0018] In one embodiment, the heat exchange tube includes:

[0019] A plurality of heat exchange bodies located in the inner cavity, covered by the heat storage material, and passing through the heat exchange fins;

[0020] A plurality of inlet sections, all of which are exposed outside the housing, connected to the inlet of one heat exchange body respectively, and having an inlet of the heat exchange tube;

[0021] And a plurality of outlet sections, all of which are exposed outside the housing, connected to the outlet of one heat exchange body respectively, and having an outlet of the heat exchange tube;

[0022] The heating element is disposed between the plurality of heat exchange bodies.

[0023] In one embodiment, the inlet section and the outlet section are respectively exposed on opposite sides of the housing;

[0024] The heat exchange tube further includes:

[0025] A liquid inlet distribution pipe, exposed outside the housing, connecting the plurality of inlet sections together, and the plurality of inlet sections are all connected to the liquid inlet distribution pipe, and the liquid inlet distribution pipe is used for inputting the fluid to be heated;

[0026] A liquid outlet collecting pipe, the liquid outlet collecting pipe is exposed outside the housing, the liquid outlet collecting pipe connects a plurality of the outlet sections together, and a plurality of the outlet sections communicate with the liquid outlet collecting pipe, and the liquid outlet collecting pipe is used for outputting the heated fluid.

[0027] In one embodiment, the regenerative heat exchange device further includes:

[0028] A temperature detector for detecting a first operating temperature of the heat storage material;

[0029] A controller, the controller is electrically connected to the temperature detector and the heating element, and the controller is used to control the shutdown of the heating element according to the feedback information of the temperature detector.

[0030] In one embodiment, the regenerative heat exchange device further includes:

[0031] A failure protector for detecting a second operating temperature of the heat storage material, the second operating temperature is higher than the first operating temperature, and the failure protector is electrically connected to the controller;

[0032] The controller is further used to control the shutdown of the heating element according to the feedback information of the failure protector.

[0033] In one embodiment, the heat exchange fin is provided with a connecting convex ring, the connecting convex ring surrounds the heat exchange main body, and the connecting convex ring is connected to the heat exchange main body;

[0034] And / or, the heat storage material is a non-corrosive phase change heat storage material, and the phase change temperature is 50-200 °C;

[0035] And / or, the heat exchange fin is provided with a connecting convex ring, the connecting convex ring surrounds the heat exchange tube, and the connecting convex ring is connected to the heat exchange tube;

[0036] And / or, the regenerative heat exchange device further includes:

[0037] A first heat insulator covering the outer surface of the housing;

[0038] A second heat insulator covering the outer surface of the part of the heat exchange tube exposed outside the housing;

[0039] And / or, the housing further has an inlet and outlet, the inlet and outlet communicate with the inner cavity, and the inlet and outlet are used for the heat storage material to enter and exit the inner cavity;

[0040] The housing is provided with a cover body which is detachably arranged and covers the inlet and outlet. The cover body is provided with a pressure relief valve for balancing the air pressure between the inner cavity and the outside.

[0041] In a second aspect, an embodiment of the present application provides a household appliance including the above-mentioned heat storage and heat exchange device.

[0042] The advantages or beneficial effects in the above technical solutions at least include:

[0043] The heat storage and heat exchange device of the present utility model includes a housing, a heat storage material, a heating element, a heat exchange tube and heat exchange fins. Among them, the housing has an inner cavity, the heat storage material is filled in the inner cavity, at least part of the heating element is arranged in the inner cavity and covered by the heat storage material, so that the part of the heating element exposed outside the housing can be electrically connected to an external power source, enabling the heating element to transfer heat to the heat storage material and heat the heat storage material to achieve heat storage. The inlet of the heat exchange tube can input the fluid to be heated, so that the fluid to be heated can be conveyed into the heat exchange tube. At least part of the heat exchange tube is arranged in the inner cavity and covered by the heat storage material, enabling the heat storage material to transfer heat to the tube wall of the heat exchange tube to heat the fluid to be heated in the heat exchange tube and achieve heat release. The outlet of the heat exchange tube can output the heated fluid for use. The heat exchange fins are located in the inner cavity, covered by the heat storage material, and the heat exchange fins are connected to the heating element and the heat exchange tube. The heat exchange fins increase the contact area between the heat storage material and the heating element and between the heat storage material and the heat exchange tube, enabling the heat of the heating element to be quickly transferred to the heat storage material through the heat exchange fins to improve the heat storage efficiency. At the same time, the heat of the heat storage material can be quickly transferred to the heat exchange tube through the heat exchange fins, so as to quickly heat the fluid to be heated and improve the heat release efficiency. In this way, when the fluid is clean water, tap water, coffee or other beverages, etc., the clean water, tap water, coffee or other beverages can be quickly heated to the target temperature to meet the large-flow usage requirements of clean water, tap water, coffee or other beverages;

[0044] In addition, based on the fact that the heat storage material, the heating element and the heat exchange tube share the same set of heat exchange fins, while improving the heat storage efficiency and heat release efficiency, it can also achieve the purpose of high energy efficiency.

[0045] The above summary is only for the purpose of the specification and is not intended to be limiting in any way. In addition to the above-described illustrative aspects, embodiments and features, further aspects, embodiments and features of the present application will be readily apparent by reference to the drawings and the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] In the accompanying drawings, unless otherwise specified, the same reference numerals throughout the several views denote the same or similar components or elements. These drawings are not necessarily drawn to scale. It should be understood that these drawings depict only some embodiments disclosed in accordance with the present application and should not be regarded as limiting the scope of the present application.

[0047] Figure 1 Schematic diagram of the three-dimensional structure of the heat storage and heat exchange device according to the first embodiment of the present utility model from the first perspective;

[0048] Figure 2 Schematic diagram of the internal structure of the heat storage and heat exchange device according to the first embodiment of the present utility model;

[0049] Figure 3 Exploded view of the heat storage and heat exchange device according to the first embodiment of the present utility model;

[0050] Figure 4 Schematic diagram of the three-dimensional structure of the heat storage and heat exchange device according to the first embodiment of the present utility model from the second perspective;

[0051] Figure 5 Cross-sectional view of the heat storage and heat exchange device according to the first embodiment of the present utility model;

[0052] Figure 6 Schematic diagram of the three-dimensional structure of the heat storage and heat exchange device according to the second embodiment of the present utility model from the first perspective;

[0053] Figure 7 Schematic diagram of the three-dimensional structure of the heat storage and heat exchange device according to the second embodiment of the present utility model from the second perspective;

[0054] Figure 8 Cross-sectional view of the heat storage and heat exchange device according to the second embodiment of the present utility model.

[0055] Reference numerals

[0056] 1. Housing; 11. Inner cavity; 12. Housing main body; 13. First baffle; 14. Second baffle; 15. Inlet and outlet; 16. Cover body; 17. First bracket; 18. Second bracket; 2. Heating element; 3. Heat exchange tube; 31. Heat exchange main body; 32. Inlet section; 33. Outlet section; 34. Liquid inlet distribution pipe; 35. Liquid outlet collecting pipe; 4. Heat exchange fins; 41. Connecting convex ring. Detailed embodiments

[0057] In the following, only some exemplary embodiments are briefly described. As those skilled in the art can recognize, the described embodiments can be modified in various different ways without departing from the spirit or scope of the present application. Therefore, the drawings and description are to be regarded as illustrative in nature and not restrictive.

[0058] See Figures 1-8 , which shows a heat storage and heat exchange device according to a preferred embodiment of the present invention, including:

[0059] A housing 1, the housing 1 having an inner cavity 11;

[0060] A heat storage material (not shown in the figure), the heat storage material being filled in the inner cavity 11;

[0061] A heating element 2, at least a part of the heating element 2 being disposed in the inner cavity 11, the heating element 2 being covered by the heat storage material, the heating element 2 being used for electrically connecting to an external power source, and the heating element 2 being used for heating the heat storage material;

[0062] A heat exchange tube 3, at least a part of the heat exchange tube 3 being disposed in the inner cavity 11, the heat exchange tube 3 being covered by the heat storage material, an inlet of the heat exchange tube 3 being used for inputting a fluid to be heated, and an outlet of the heat exchange tube 3 being used for outputting the heated fluid;

[0063] Heat exchange fins 4, the heat exchange fins 4 being located in the inner cavity 11, the heat exchange fins 4 being covered by the heat storage material, and the heat exchange fins 4 connecting the heating element 2 and the heat exchange tube 3.

[0064] The heat storage and heat exchange device of the present utility model includes a housing 1, a heat storage material, a heating element 2, a heat exchange tube 3 and heat exchange fins 4. Among them, the housing 1 has an inner cavity 11, the heat storage material is filled in the inner cavity 11, at least part of the heating element 2 is arranged in the inner cavity 11 and is covered by the heat storage material, and the part of the heating element 2 exposed outside the housing 1 can be electrically connected to an external power source, so that the heating element 2 can transfer heat to the heat storage material to heat the heat storage material and achieve heat storage. The inlet of the heat exchange tube 3 can input the fluid to be heated, so that the fluid to be heated can be transported into the heat exchange tube 3. At least part of the heat exchange tube 3 is arranged in the inner cavity 11 and is covered by the heat storage material, so that the heat storage material can transfer heat to the tube wall of the heat exchange tube 3 to heat the fluid to be heated in the heat exchange tube 3 and achieve heat release. The outlet of the heat exchange tube 3 can output the heated fluid for use. Among them, based on the provision of the heat exchange fins 4, the heat exchange fins 4 are located in the inner cavity 11, the heat exchange fins 4 are covered by the heat storage material, the heat exchange fins 4 are connected to the heating element 2 and the heat exchange tube 3, and the heat exchange fins 4 increase the contact area between the heat storage material and the heating element 2 and between the heat storage material and the heat exchange tube 3, so that the heat of the heating element 2 can be quickly transferred to the heat storage material through the heat exchange fins 4 to improve the heat storage efficiency. At the same time, the heat of the heat storage material can be quickly transferred to the heat exchange tube 3 through the heat exchange fins 4, so as to quickly heat the fluid to be heated and improve the heat release efficiency. In this way, when the fluid is clean water, tap water, coffee or other beverages, etc., the clean water, tap water, coffee or other beverages can be quickly heated to the target temperature, so as to meet the large-flux use requirements of clean water, tap water, coffee or other beverages, etc. In addition, based on the fact that the heat storage material, the heating element 2 and the heat exchange tube 3 share the same set of heat exchange fins 4, while improving the heat storage efficiency and the heat release efficiency, the purpose of high efficiency and energy saving can also be achieved.

[0065] Among them, the heat storage material is a non-corrosive phase change heat storage material, and the phase change temperature is 50-200 °C. In this embodiment, the phase change temperature is preferably 100-200 °C. Heat storage materials with different phase change temperatures can be used for different household appliances and performance requirements.

[0066] See Figure 2, in one embodiment, the heat exchange fins 4 are arranged along the width direction of the housing 1, the part of the heating body 2 located in the inner cavity 11 and the part of the heat exchange tube 3 located in the inner cavity 11 are both arranged along the length direction of the housing 1, and both the heating body 2 and the heat exchange tube 3 penetrate through the heat exchange fins 4, that is, both the heating body 2 and the heat exchange tube 3 are perpendicular to the heat exchange fins 4, which helps to reduce the thermal resistance, thereby further improving the heat storage and heat release efficiency. At the same time, based on the fact that the heat exchange fins 4 are arranged along the width direction of the housing 1, the space utilization rate in the width direction of the housing 1 can be improved, and the part of the heating body 2 located in the inner cavity 11 and the part of the heat exchange tube 3 located in the inner cavity 11 are both arranged along the length direction of the housing 1, which can improve the space utilization rate in the length direction of the housing 1, making the arrangement of the heat exchange fins 4, the part of the heating body 2 located in the inner cavity 11 and the part of the heat exchange tube 3 located in the inner cavity 11 regular and neat. While being convenient for installation, it can also make the overall structure of the heat storage and heat exchange device more compact.

[0067] See Figure 3 , in one embodiment, the heat exchange fins 4 have a first perforation and a second perforation. The first perforation and the second perforation penetrate through the heat exchange fins 4 both front and back. The first perforation is for the heating body 2 to pass through, and the first perforation has an interference fit with the heating body 2 to reliably connect the heat exchange fins 4 and the heating body 2 together. The second perforation is for the heat exchange tube 3 to pass through, and the heat exchange fins 4 are welded to the heat exchange tube 3 to reliably connect the heat exchange fins 4 and the heat exchange tube 3 together.

[0068] See Figure 2 , in one embodiment, the number of the heat exchange fins 4 is multiple. The multiple heat exchange fins 4 are arranged at intervals along the length direction of the housing 1. Each heat exchange fin 4 is connected to the heat exchange tube 3 and the heating body 2 to further increase the contact area between the heat storage material and the heating body 2 and between the heat storage material and the heat exchange tube 3, so that the heat of the heating body 2 can be transferred to the heat storage material more quickly through the heat exchange fins 4, realizing further improvement of the heat storage efficiency. At the same time, the heat of the heat storage material can be transferred to the heat exchange tube 3 more quickly through the heat exchange fins 4, thereby quickly heating the fluid to be heated and realizing further improvement of the heat release efficiency. In addition, the number of the heat exchange fins 4 can be determined according to the required heat storage amount, realizing multi-specification of the heat storage capacity of the heat storage and heat exchange device, and allowing for a more flexible selection of the heat storage amount, achieving the most suitable utilization of the heat storage material and saving materials.

[0069] See Figures 1-5 , in one embodiment, the heat exchange tube 3 includes:

[0070] a plurality of heat exchange bodies 31. The plurality of heat exchange bodies 31 are located in the inner cavity 11. The plurality of heat exchange bodies 31 are all covered by the heat storage material. The plurality of heat exchange bodies 31 all penetrate through the heat exchange fins 4. The plurality of heat exchange bodies 31 are connected end to end to form a continuous integral heat exchange body 31 structure;

[0071] The inlet section 32 is exposed outside the housing 1. The inlet section 32 is in communication with the inlet of the heat exchange body 31 at the head end among the multiple heat exchange bodies 31. The inlet section 32 has an inlet of the heat exchange tube 3.

[0072] And an outlet section 33 is exposed outside the housing 1. The outlet section 33 is in communication with the outlet of the heat exchange body 31 at the tail end among the multiple heat exchange bodies 31. The outlet section 33 has an outlet of the heat exchange tube 3.

[0073] The heating body 2 is arranged between the multiple heat exchange bodies 31. Based on the fact that the number of the heat exchange bodies 31 is multiple, the fluid capacity can be increased, so that the fluid heating efficiency can be improved. At the same time, based on the fact that the heating body 2 is arranged between the multiple heat exchange bodies 31, uniform heating of the heat storage material can be realized, so as to realize uniform heating of each heat exchange body 31 and thus realize uniform heating of the fluid.

[0074] See Figure 5 , in an embodiment, in order to reduce the thermal resistance, a heat exchange elbow is arranged between two connected heat exchange bodies 31, and the heat exchange elbow communicates with the adjacent ends of the two heat exchange bodies 31.

[0075] See Figures 1-5 , in an embodiment, the housing 1 includes:

[0076] A housing main body 12, the top of the housing main body 12 has an inlet and outlet 15 for allowing the heat storage material to enter and exit the inner cavity 11, and the housing main body 12 has an installation groove with openings on the left and right sides;

[0077] A first baffle 13 is arranged on one side of the housing main body 12 and covers one opening of the installation groove. The first baffle 13 has a first installation hole through which the part of the heat exchange tube 3 exposed outside the housing 1 passes through the housing 1 to the outside;

[0078] A second baffle 14 is arranged on the other side of the housing main body 12 and covers the other opening of the installation groove. The second baffle 14, the first baffle 13 and the installation groove enclose the inner cavity 11. The second baffle 14 has a second installation hole through which the part of the heating body 2 exposed outside the housing 1 passes through the housing 1 to the outside;

[0079] The cover body 16 is detachably covered on the shell body 12 and covers the inlet and outlet 15 to confine the heat storage material in the inner cavity 11. In this way, during installation, the heating element 2 and the heat exchange tube 3 can be installed on the heat exchange fins 4, and then the assembled structure of the heating element 2, the heat exchange tube 3 and the heat exchange fins 4 is inserted into the installation groove through the opening of the installation groove. Then, the first baffle 13 and the second baffle 14 are installed on the shell 1, and then the heat storage material is injected into the inner cavity 11 through the inlet and outlet 15. Finally, the cover body 16 is covered to complete the installation. The installation is convenient and the installation difficulty is low. In addition, the wire part of the heating element 2 can be isolated from the heat storage material by using the second baffle 14, avoiding the risk brought by the conductivity of the heat storage material when it melts, making the whole heat storage and heat exchange device safer and more reliable.

[0080] In one embodiment, a pressure relief valve is provided on the cover body 16. The pressure relief valve is used to balance the air pressure between the inner cavity 11 and the outside to improve the use safety of the heat storage and heat exchange device.

[0081] In one embodiment, both the first baffle 13 and the second baffle 14 are welded to the shell body 12 so that the first baffle 13 is tightly connected to the shell body 12.

[0082] In one embodiment, the shell 1 further includes:

[0083] A first sealing ring (not shown in the figure), the first sealing ring is clamped between the first mounting hole and the heating element 2, and the first sealing ring is arranged around the heating element 2 to seal the gap between the first mounting hole and the heating element 2 and prevent the heat storage material from leaking;

[0084] A second sealing ring (not shown in the figure), the second sealing ring is clamped between the second mounting hole and the heat exchange tube 3, and the second sealing ring is arranged around the heat exchange tube 3 to seal the gap between the second mounting hole and the heat exchange tube 3 and prevent the heat storage material from leaking.

[0085] In one embodiment, the shell 1 further includes:

[0086] A third sealing ring (not shown in the figure), the third sealing ring is clamped between the cover body 16 and the shell body 12, and the third sealing ring is arranged around the inlet and outlet 15 to seal the gap between the cover body 16 and the shell body 12 and prevent the heat storage material from leaking.

[0087] In one embodiment, the cover body 16 and the shell body 12 are connected together by a threaded connection method or can also be connected together by a flange connection method.

[0088] See Figures 6-8 , in one embodiment, the heat exchange tube 3 includes:

[0089] A plurality of heat exchange bodies 31 are located in the inner cavity 11. The plurality of heat exchange bodies 31 are all covered with heat storage materials, and the plurality of heat exchange bodies 31 all penetrate through heat exchange fins 4;

[0090] A plurality of inlet sections 32 are all exposed outside the housing 1. The inlet sections 32 are in one-to-one correspondence with the inlets of one heat exchange body 31 and are communicated therewith. The inlet sections 32 have inlets of the heat exchange tubes 3;

[0091] And a plurality of outlet sections 33 are all exposed outside the housing 1. The outlet sections 33 are in one-to-one correspondence with the outlets of one heat exchange body 31 and are communicated therewith. The outlet sections 33 have outlets of the heat exchange tubes 3;

[0092] The heating body 2 is arranged between the plurality of heat exchange bodies 31. Based on the fact that the numbers of the heat exchange bodies 31, the inlet sections 32 and the outlet sections 33 are all plural, the inlet sections 32 are in one-to-one correspondence with the inlets of one heat exchange body 31 and the outlet sections 33 are in one-to-one correspondence with the outlets of one heat exchange body 31, so that each heat exchange body 31 has an inlet section 32 and an outlet section 33, which can increase the fluid capacity, thereby improving the fluid heating efficiency. At the same time, based on the fact that the heating body 2 is arranged between the plurality of heat exchange bodies 31, the heat storage materials can be heated evenly, so as to heat each heat exchange body 31 evenly.

[0093] See Figures 6-7 , in an embodiment, the housing 1 includes:

[0094] A housing main body 12, the top of the housing main body 12 has an inlet and outlet 15 for allowing the heat storage materials to enter and exit the inner cavity 11, and the housing main body 12 also has a mounting groove with openings on the left and right sides;

[0095] A first baffle 13 is arranged on one side of the housing main body 12 and covers one opening of the mounting groove. The first baffle 13 has a first mounting hole and a second mounting hole. The first mounting hole allows the part of the heating body 2 exposed outside the housing 1 to pass through the housing 1, and the second mounting hole allows the inlet section 32 to pass through the housing 1;

[0096] A second baffle 14 is arranged on the other side of the housing main body 12 and covers the other opening of the mounting groove. The second baffle 14, the first baffle 13 and the mounting groove enclose the inner cavity 11. The second baffle 14 has a second mounting hole, and the second mounting hole allows the outlet section 33 to pass through the housing 1;

[0097] The cover body 16 can be detachably covered on the shell body 12 and cover the inlet and outlet 15 to confine the heat storage material in the inner cavity 11. In this way, during installation, the heating element 2 and the heat exchange tube 3 can be installed on the heat exchange fins 4, and then the assembled structure of the heating element 2, the heat exchange tube 3 and the heat exchange fins 4 can be inserted into the installation groove through any one of the openings on the side of the installation groove. Then, the first baffle 13 and the second baffle 14 are installed on the shell 1, and the heat storage material is injected into the inner cavity 11 through the inlet and outlet 15. Finally, covering the cover body 16 can complete the installation, which is more convenient and has a lower installation difficulty. In addition, the wire part of the heating element 2 can be isolated from the heat storage material by the first baffle 13, avoiding the risk brought by the conductivity of the heat storage material when it melts, making the entire heat storage and heat exchange device safer and more reliable.

[0098] In one embodiment, both the first baffle 13 and the second baffle 14 are welded to the shell body 12 so that both the first baffle 13 and the second baffle 14 are tightly connected to the shell body 12.

[0099] See Figures 6-7 , in one embodiment, the inlet section 32 and the outlet section 33 are respectively exposed on the opposite sides of the shell 1, and the opposite sides specifically refer to the two sides in the length direction of the shell 1, or can also be the two sides in the width direction of the shell 1;

[0100] The heat exchange tube 3 further includes:

[0101] The liquid inlet distribution pipe 34 is exposed outside the shell 1. The liquid inlet distribution pipe 34 connects a plurality of inlet sections 32 together, and all the plurality of inlet sections 32 communicate with the liquid inlet distribution pipe 34. The liquid inlet distribution pipe 34 is used to input the fluid to be heated;

[0102] The liquid outlet collecting pipe 35 is exposed outside the shell 1. The liquid outlet collecting pipe 35 connects a plurality of outlet sections 33 together, and all the plurality of outlet sections 33 communicate with the liquid outlet collecting pipe 35. The liquid outlet collecting pipe 35 is used to output the heated fluid. By respectively exposing the inlet section 32 and the outlet section 33 on the opposite sides of the shell 1, the space utilization rate on the opposite sides of the shell 1 can be improved, making the overall structure of the shell 1 more compact and more conducive to the miniaturization of the heat storage and heat exchange device. At the same time, by connecting a plurality of inlet sections 32 together with the liquid inlet distribution pipe 34, during use, only the liquid inlet distribution pipe 34 needs to be connected to the external liquid outlet pipeline, making the pipeline connection more convenient. Similarly, by connecting a plurality of outlet sections 33 together with the liquid outlet collecting pipe 35, during use, only the liquid outlet collecting pipe 35 needs to be connected to the external liquid inlet pipeline, making the pipeline connection more convenient.

[0103] In one embodiment, the heat storage and heat exchange device further includes:

[0104] A temperature detector (not shown in the figure), which is used to detect the first working temperature of the heat storage material;

[0105] A controller (not shown in the figure), the controller is electrically connected to the temperature detector and the heating element 2, and the controller is used to control the shutdown of the heating element 2 according to the feedback information of the temperature detector, so as to realize the automatic shutdown of the heating element 2 without manual operation, making it more convenient to use.

[0106] In one embodiment, the temperature detector can be installed on the first bracket 17 outside the housing 1, or can be installed in the inner cavity 11.

[0107] In one embodiment, the heat storage and heat exchange device further includes:

[0108] A failure protector (not shown in the figure), the failure protector is used to detect the second working temperature of the heat storage material, the second working temperature is higher than the first working temperature, and the failure protector is electrically connected to the controller;

[0109] The controller is further used to control the shutdown of the heating element 2 according to the feedback information of the failure protector. In this way, in the case of the failure of the temperature detector, the failure protector can be used to monitor the temperature of the heat storage material, so as to control the automatic shutdown of the heating element 2. The failure protector and the temperature detector are combined to play a dual high-temperature protection role, with higher safety.

[0110] In one embodiment, the failure protector can be installed on the second bracket 18 outside the housing 1, or can be installed in the inner cavity 11.

[0111] See Figure 8 , in one embodiment, the heat exchange fin 4 is provided with a connecting convex ring 41, the connecting convex ring 41 surrounds the heat exchange tube 3, and the connecting convex ring 41 is connected to the heat exchange tube 3. The setting of the connecting convex ring 41 can increase the contact area between the heat exchange fin 4 and the heat exchange tube 3, further improve the heat release efficiency, and at the same time, make the connection between the heat exchange fin 4 and the heat exchange tube 3 more stable and reliable.

[0112] In one embodiment, the heat storage and heat exchange device further includes:

[0113] A first heat insulator, the first heat insulator is coated on the outer surface of the housing 1, which can effectively prevent the heat dissipation of the heat storage material, avoid affecting the surrounding ambient temperature, and at the same time, reduce energy consumption;

[0114] A second heat insulator, the second heat insulator is coated on the outer surface of the part of the heat exchange tube 3 exposed outside the housing 1, which can effectively prevent the heat dissipation of the fluid, avoid affecting the surrounding ambient temperature, and at the same time, reduce energy consumption.

[0115] Among them, it can be understood that the first heat insulation body can be specifically fixed to the housing 1 by means of bonding, or can be fixed to the housing 1 by means of bolting, clamping, etc.; similarly, the second heat insulation body can be specifically fixed to the heat exchange tube 3 by means of bonding, or can be fixed to the heat exchange tube 3 by means of bolting, clamping, etc.

[0116] Among them, Figures 1-5 The working principle of the shown heat storage heat exchange device is as follows:

[0117] When the heat storage heat exchange device needs to store heat, the heating body 2 is powered on and started. The heat generated by the heating body 2 is transferred to the inner cavity 11 through the heat exchange fins 4, prompting the heat storage material to continuously increase in temperature; when the temperature of the heat storage material rises to the first working temperature, the temperature detector is started, and at this time the heating body 2 immediately stops heating. This process is the heat storage process completed by the heat storage heat exchange device.

[0118] When the heat storage heat exchange device needs to release heat, the inlet section 32 inputs the fluid to be heated. The fluid quickly flows through each heat exchange main body 31 and finally flows out from the outlet section 33. During the process of the fluid flowing through each heat exchange main body 31 and the heat exchange elbow, the heat storage material that has completed heat storage will transfer the stored heat to the inside of the heat exchange main body 31 through the pipe wall and the heat exchange fins 4, realizing the temperature rise of the fluid to be heated. This process is the heat release process completed by the heat storage heat exchange device.

[0119] Among them, Figures 6-8 The working principle of the shown heat storage heat exchange device is as follows:

[0120] When the heat storage heat exchange device needs to store heat, the heating body 2 is powered on and started. The heat generated by the heating body 2 is transferred to the inner cavity 11 through the heat exchange fins 4, prompting the heat storage material to continuously increase in temperature; when the temperature of the heat storage material rises to the first working temperature, the temperature detector is started, and at this time the heating body 2 immediately stops heating. This process is the heat storage process completed by the heat storage heat exchange device.

[0121] When the heat storage heat exchange device needs to release heat, the liquid inlet distribution pipe 34 inputs the fluid to be heated. The fluid quickly flows through each heat exchange main body 31 and finally flows out from the liquid outlet collecting pipe 35. During the process of the fluid flowing through each heat exchange main body 31, the heat storage material that has completed heat storage will transfer the stored heat to the inside of the heat exchange main body 31 through the pipe wall and the heat exchange fins 4, realizing the temperature rise of the fluid to be heated. This process is the heat release process completed by the heat storage heat exchange device.

[0122] A preferred embodiment of the present utility model provides a household appliance, including the above-mentioned heat storage heat exchange device.

[0123] For the household appliance of the present utility model, due to the adoption of the above-mentioned heat storage and heat exchange device, the heat of the heating element 2 can also be quickly transferred to the heat storage material through the heat exchange fins 4, so as to improve the heat storage efficiency. At the same time, the heat of the heat storage material can also be quickly transferred to the heat exchange tube 3 through the heat exchange fins 4, thereby quickly heating the fluid to be heated and improving the heat release efficiency.

[0124] Among them, the household appliance can specifically be an electric appliance such as a water dispenser, a water purifier, a coffee machine, or other beverage machines.

[0125] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0126] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" can explicitly or implicitly include at least one of these features. In the description of the present application, "a plurality" means two or more, unless otherwise specifically defined.

[0127] The above is only the specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present application can easily think of various changes or substitutions, and these should all be covered by the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A heat storage and heat exchange device, characterized in that, Comprising: A housing having an inner cavity; A heat storage material filled in the inner cavity; A heating element, at least a part of which is disposed in the inner cavity, the heating element is covered by the heat storage material, the heating element is used for electrical connection with an external power source, and the heating element is used for heating the heat storage material; A heat exchange tube, at least a part of which is disposed in the inner cavity, the heat exchange tube is covered by the heat storage material, an inlet of the heat exchange tube is used for inputting a fluid to be heated, and an outlet of the heat exchange tube is used for outputting the heated fluid; Heat exchange fins located in the inner cavity, the heat exchange fins are covered by the heat storage material, and the heat exchange fins connect the heating element and the heat exchange tube.

2. The regenerative heat exchange device according to claim 1, characterized in that The heat exchange fins are arranged along the width direction of the housing, a part of the heating element located in the inner cavity and a part of the heat exchange tube located in the inner cavity are both arranged along the length direction of the housing, and both the heating element and the heat exchange tube penetrate through the heat exchange fins.

3. The regenerative heat exchange device according to claim 2, wherein The number of the heat exchange fins is multiple, and the multiple heat exchange fins are arranged at intervals along the length direction of the housing, and each heat exchange fin connects the heat exchange tube and the heating element.

4. The regenerative heat exchange device according to claim 1, characterized in that The heat exchange tube includes: Multiple heat exchange bodies located in the inner cavity, the multiple heat exchange bodies are all covered by the heat storage material, the multiple heat exchange bodies all penetrate through the heat exchange fins, and the multiple heat exchange bodies are connected end to end; An inlet section exposed outside the housing, the inlet section is communicated with an inlet of the heat exchange body at the first end among the multiple heat exchange bodies, and the inlet section has an inlet of the heat exchange tube; And an outlet section exposed outside the housing, the outlet section is communicated with an outlet of the heat exchange body at the last end among the multiple heat exchange bodies, and the outlet section has an outlet of the heat exchange tube; The heating element is disposed between the multiple heat exchange bodies.

5. The regenerative heat exchange device according to claim 1, characterized in that The heat exchange tube includes: Multiple heat exchange bodies located in the inner cavity, the multiple heat exchange bodies are all covered by the heat storage material, the multiple heat exchange bodies all penetrate through the heat exchange fins; Multiple inlet sections all exposed outside the housing, the inlet sections are in one-to-one correspondence with an inlet of one heat exchange body, and the inlet sections have an inlet of the heat exchange tube; And multiple outlet sections all exposed outside the housing, the outlet sections are in one-to-one correspondence with an outlet of one heat exchange body, and the outlet sections have an outlet of the heat exchange tube; The heating element is disposed between the multiple heat exchange bodies.

6. The heat storage and heat exchange device according to claim 5, wherein The inlet section and the outlet section are respectively exposed on opposite sides of the housing; The heat exchange tube further includes: A liquid inlet distribution pipe exposed outside the housing, the liquid inlet distribution pipe connects the multiple inlet sections together, and the multiple inlet sections are all communicated with the liquid inlet distribution pipe, and the liquid inlet distribution pipe is used for inputting a fluid to be heated; A liquid outlet collecting pipe, the liquid outlet collecting pipe is exposed outside the housing, the liquid outlet collecting pipe connects a plurality of the outlet sections together, and a plurality of the outlet sections are all communicated with the liquid outlet collecting pipe, and the liquid outlet collecting pipe is used for outputting the heated fluid.

7. The regenerative heat exchange device according to claim 1, characterized in that, The heat storage and heat exchange device further includes: A temperature detector for detecting a first operating temperature of the heat storage material; A controller electrically connected to the temperature detector and the heating element, and the controller is used for controlling the shutdown of the heating element according to the feedback information of the temperature detector.

8. The regenerative heat exchange device according to claim 7, wherein The heat storage and heat exchange device further includes: A failure protector for detecting a second operating temperature of the heat storage material, the second operating temperature being higher than the first operating temperature, and the failure protector is electrically connected to the controller; The controller is further used for controlling the shutdown of the heating element according to the feedback information of the failure protector.

9. The regenerative heat exchange device according to claim 1, wherein The heat exchange fin is provided with a connecting convex ring, the connecting convex ring is arranged around the heat exchange tube, and the connecting convex ring is connected to the heat exchange tube; And / or, the heat storage material is a non-corrosive phase change heat storage material, and the phase change temperature is 50-200 °C; And / or, the heat storage and heat exchange device further includes: A first heat insulation body covering the outer surface of the housing; A second heat insulation body covering the outer surface of the part of the heat exchange tube exposed outside the housing; And / or, the housing further has an inlet and outlet, the inlet and outlet is communicated with the inner cavity, and the inlet and outlet is used for the heat storage material to enter and exit the inner cavity; The housing is provided with a cover body which is detachably arranged, the cover body covers the inlet and outlet, and the cover body is provided with a pressure relief valve for balancing the air pressure between the inner cavity and the outside.

10. A household appliance, characterized in that, Including the heat storage and heat exchange device according to any one of claims 1-9.

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