A heat storage type small kitchen treasure

Abstract

The utility model discloses a small heat storage type kitchen appliance, comprising a shell, a heat exchange module, a heating device, a water inlet interface and a water outlet interface; the heat exchange module, the heating device, the water inlet interface and the water outlet interface are all arranged inside the shell, and the opening of the water inlet interface and the opening of the water outlet interface are both located at the top of the shell; the heating device is located at the top of a plurality of heat exchange modules; the heat exchange module comprises a phase change heat storage layer and a heat exchange tube, and the heat exchange tube is repeatedly folded and embedded in the interior of the phase change heat storage layer; the heat exchange tubes of two adjacent heat exchange modules are interconnected, and the heat exchange tubes of the plurality of heat exchange modules form a pipeline, the water inlet end of the pipeline is interconnected with the water inlet interface, and the water outlet end of the pipeline is interconnected with the water outlet interface. The small heat storage type kitchen appliance proposed by the utility model can effectively reduce the heat loss, facilitate the stability of water temperature, ensure the continuous supply of hot water, and also facilitate meeting the demand for hot water with large flow and high temperature by setting a phase change heat storage layer.

Description

Technical Field

[0001] The utility model relates to the technical field of household appliances, in particular to a small heat storage kitchen appliance. Background Art

[0002] With the improvement of living standards, people's demand for household hot water supply is growing, especially in the kitchen environment, where instant and continuous hot water supply is essential to improving the quality of life. Small kitchen water heaters have been widely used in the market due to their convenient installation, small space occupation and fast water output.

[0003] Existing small kitchen boilers mainly include the following two categories: (1) Instantaneous small kitchen boilers. Although instantaneous small kitchen boilers can produce hot water immediately, their heating efficiency is limited by the power of their heating elements. They are unable to meet the demand for large flow and high temperature hot water, which greatly reduces the user experience; (2) Storage type small kitchen boilers. They usually adopt a storage heating method. During the heating process, heat energy is easily dissipated into the environment, causing the water temperature to drop rapidly, which not only increases energy consumption but also affects the continuous supply of hot water. Utility Model Content

[0004] The purpose of the utility model is to provide a small heat storage kitchen appliance, which is provided with a phase change heat storage layer and utilizes the characteristics of the phase change heat storage layer that can absorb and release a large amount of latent heat during the phase change process. It can not only effectively reduce heat loss, but also be beneficial to the stability of water temperature and ensure the continuous supply of hot water, and it is also beneficial to meet the demand for large flow and higher temperature hot water, so as to overcome the shortcomings of the prior art.

[0005] To achieve this purpose, the utility model adopts the following technical solutions:

[0006] A heat storage type small kitchen appliance comprises a shell, a heat exchange module, a heating device, a water inlet interface and a water outlet interface;

[0007] The heat exchange module, the heating device, the water inlet interface and the water outlet interface are all arranged inside the shell, and the opening of the water inlet interface and the opening of the water outlet interface are both located at the top of the shell; there are multiple heat exchange modules, and the multiple heat exchange modules are arranged in parallel, and the heating device is located at the top of the multiple heat exchange modules;

[0008] The heat exchange module comprises a phase-change heat storage layer and a heat exchange tube, wherein the heat exchange tube is repeatedly folded and embedded in the phase-change heat storage layer; the heating device is used to heat the water in the heat exchange tube, and the phase-change heat storage layer is used to absorb the heat energy of the water in the heat exchange tube, and store and release the heat energy;

[0009] The heat exchange tubes of two adjacent heat exchange modules are interconnected, and the heat exchange tubes of multiple heat exchange modules form a pipeline, the water inlet end of the pipeline is interconnected with the water inlet interface, and the water outlet end of the pipeline is interconnected with the water outlet interface.

[0010] Furthermore, outer walls of two adjacent phase change heat storage layers are in contact with each other.

[0011] Furthermore, the heat exchange tube 22 includes an extension area and a folding area which are integrally formed and interconnected; the end of the extension area is provided with a water inlet end of the heat exchange tube;

[0012] The folding area includes a vertical segment and a horizontal segment, and the number of the vertical segments and the number of the horizontal segments are both multiple. The multiple vertical segments are arranged in parallel, and the multiple horizontal segments are staggered at both ends of the vertical segments. One vertical segment and one horizontal segment are alternately connected in sequence, and the water outlet end of the heat exchange tube is arranged at the end of the outermost vertical segment in the folding area.

[0013] Furthermore, the thickness of the phase-change thermal storage layer is 1-2 cm, and the material of the phase-change thermal storage layer is a polyol solid-solid phase change material.

[0014] Furthermore, the housing comprises an inner shell and an outer shell, the inner shell is located inside the outer shell, and a cavity is left between the inner shell and the outer shell;

[0015] The inner shell is a hollow structure with an opening at the top; the heat exchange module, the heating device, the water inlet interface and the water outlet interface are all located inside the inner shell, and the opening of the water inlet interface and the opening of the water outlet interface are both located at the top of the outer shell.

[0016] Furthermore, it also includes a first pressing block and a second pressing block, the first pressing block and the second pressing block are located inside the inner shell, and the first pressing block and the second pressing block are staggered on the top of the heat exchange module, the first pressing block, the second pressing block, the heat exchange module and the inner shell together form a first installation gap, and the first installation gap is used to accommodate the water outlet interface;

[0017] The heat exchange module, the heating device, the first pressing block and the second pressing block together form a second installation gap, and the second accommodating gap is used to accommodate the water inlet interface.

[0018] Furthermore, it also includes a temperature detection sensor, which is arranged inside the heat exchange tube and is used to detect the water temperature of the heat exchange tube.

[0019] Furthermore, it also includes a power regulator, which is arranged on the outer wall of the shell and is electrically connected to the heating device. The power regulator is used to adjust the heating power of the heating device.

[0020] Furthermore, it also includes a flow sensor, which is arranged inside the water outlet interface and is used to detect the water outlet speed of the water outlet interface.

[0021] Furthermore, the heating device includes any one of a heating plate and an electric heating tube.

[0022] The technical solution provided by the embodiments of the present application may have the following beneficial effects:

[0023] 1. The heat exchange module includes a phase-change heat storage layer and a heat exchange tube. The heat exchange tube is repeatedly folded and embedded in the interior of the phase-change heat storage layer. Since the phase-change heat storage layer can absorb and release a large amount of latent heat during the phase change process, and the phase change latent heat is much higher than the latent heat of ordinary materials, it can store and release thermal energy more efficiently. At the same time, the heat exchange tube is repeatedly folded and embedded in the interior of the phase-change heat storage layer, which increases the heat exchange area between the heat exchange tube and the phase-change heat storage layer, making the heat exchange between the heat stored in the phase-change heat storage layer and the moisture in the heat exchange tube more sufficient, thereby improving the heat exchange efficiency.

[0024] 2. By setting up a phase change heat storage layer and utilizing the characteristics of the phase change heat storage layer that can absorb and release a large amount of heat energy during the phase change process, it can not only effectively reduce heat loss, maintain the stability of water temperature, and ensure the continuous supply of hot water, but also help the phase change heat storage layer to convert electrical energy into heat energy and store it during non-water use periods, and then release the heat energy during water use periods to meet the needs of large flow and higher temperature hot water.

[0025] 3. There are multiple heat exchange modules, which increases the storage capacity of heat energy, allowing the heat exchange module to store more heat energy, which is beneficial to improving heat exchange efficiency and reducing heat loss. At the same time, the heat exchange tubes of two adjacent heat exchange modules are interconnected, and the heat exchange tubes of multiple heat exchange modules form a pipeline, which is beneficial to use only one water inlet interface and one water outlet interface to realize cold water entering the heat exchange tubes of multiple heat exchange modules, and hot water heated in the heat exchange tubes of multiple heat exchange modules flowing out from the water outlet interface, simplifying the setting of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 The utility model is a schematic diagram of the overall structure of a heat storage type small kitchen appliance.

[0027] Figure 2 It is a cross-sectional view of a heat storage type small kitchen appliance of the utility model.

[0028] Figure 3The utility model is a partial structural schematic diagram of a heat storage type small kitchen appliance.

[0029] Figure 4 It is another partial structural schematic diagram of a heat storage type small kitchen appliance of the utility model.

[0030] Among them: shell 1, inner shell 11, outer shell 12, heat exchange module 2, phase change heat storage layer 21, heat exchange tube 22, extension area 221, folding area 222, vertical section 2221, horizontal section 2222, heating device 3, water inlet interface 4, water outlet interface 5, first tightening block 6, second tightening block 7, power regulator 8. DETAILED DESCRIPTION

[0031] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0032] The technical solution provides a heat storage type small kitchen appliance, comprising a housing 1, a heat exchange module 2, a heating device 3, a water inlet interface 4 and a water outlet interface 5;

[0033] The heat exchange module 2, the heating device 3, the water inlet interface 4 and the water outlet interface 5 are all arranged inside the shell 1, and the opening of the water inlet interface 4 and the opening of the water outlet interface 5 are both located at the top of the shell 1; the heat exchange module 2 is provided in plurality, and the plurality of heat exchange modules 2 are arranged in parallel, and the heating device 3 is located at the top of the plurality of heat exchange modules 2;

[0034] The heat exchange module 2 includes a phase change heat storage layer 21 and a heat exchange tube 22, and the heat exchange tube 22 is repeatedly folded and embedded in the phase change heat storage layer 21; the heating device 3 is used to heat the water in the heat exchange tube 22, and the phase change heat storage layer 21 is used to absorb the heat energy of the water in the heat exchange tube 22, and store and release the heat energy;

[0035] The heat exchange tubes 22 of two adjacent heat exchange modules 2 are interconnected, and the heat exchange tubes 22 of multiple heat exchange modules 2 form a pipeline, the water inlet end of the pipeline is interconnected with the water inlet interface 4, and the water outlet end of the pipeline is interconnected with the water outlet interface 5.

[0036] In order to overcome the technical problems that the small kitchen boiler in the prior art is not only difficult to meet the demand for large flow and high temperature hot water, but also the water temperature drops quickly, which not only increases energy consumption but also affects the continuous supply of hot water, the technical solution proposes a heat storage type small kitchen boiler, such as Figures 1 to 4As shown, it includes a shell 1, a heat exchange module 2, a heating device 3, a water inlet interface 4 and a water outlet interface 5. The opening of the water inlet interface 4 and the opening of the water outlet interface 5 are both located at the top of the shell 1, which is more conducive to connecting the water inlet interface 4 with the external water inlet pipe, and the water outlet interface 5 with the external water outlet pipe, thereby improving the convenience of water inlet and water outlet of the heat exchange module 2.

[0037] Specifically, the heat exchange module 2 includes a phase change heat storage layer 21 and a heat exchange tube 22. The heat exchange tube 22 is repeatedly folded and embedded in the interior of the phase change heat storage layer 21. Since the phase change heat storage layer 21 can absorb and release a large amount of latent heat during the phase change process, the phase change latent heat is much higher than the latent heat of ordinary materials, and therefore can store and release thermal energy more efficiently; at the same time, the heat exchange tube 22 is repeatedly folded and embedded in the interior of the phase change heat storage layer 21, which increases the heat exchange area between the heat exchange tube 22 and the phase change heat storage layer 21, so that the heat exchange between the heat stored in the phase change heat storage layer 21 and the moisture in the heat exchange tube 22 is more sufficient, thereby improving the heat exchange efficiency.

[0038] Furthermore, the heat exchange module 2 is provided with multiple ones, which increases the storage capacity of heat energy, so that the heat exchange module 2 can store more heat energy, which is beneficial to improving the heat exchange efficiency and reducing heat loss. At the same time, the heat exchange tubes 22 of two adjacent heat exchange modules 2 are interconnected, and the heat exchange tubes 22 of multiple heat exchange modules 2 form a pipeline, which is beneficial to use only one water inlet interface 4 and one water outlet interface 5 to respectively realize cold water entering the heat exchange tubes 22 of multiple heat exchange modules 2, and hot water heated in the heat exchange tubes 22 of multiple heat exchange modules 2 flows out from the water outlet interface 5, which simplifies the setting of the device.

[0039] The working process of the present technical solution is as follows: during the non-water use period, the water inlet interface 4 and the water outlet interface 5 are closed, and the heating device 3 heats the water stored in the heat exchange tube 22, so that the temperature of the water in the heat exchange tube 22 increases, and the phase change heat storage layer 21 absorbs the heat energy in the water and stores it; during the water use period, the water inlet interface 4 and the water outlet interface 5 are opened, the water stored in the heat exchange tube 22 quickly flows out from the water outlet interface 5, and the cold water enters the heat exchange tube 22 of multiple heat exchange modules 2 through the water inlet interface 4, the heating device 3 heats the cold water in the heat exchange tube 22 of multiple heat exchange modules 2, and at the same time, the cold water in the heat exchange tube 22 of multiple heat exchange modules 2 exchanges with the heat energy stored in the phase change heat storage layer 21, so that the cold water quickly heats up and becomes hot water, and the hot water flows out from the water outlet interface 5. In this process, a phase change heat storage layer is set up. The characteristic of the phase change heat storage layer that can absorb and release a large amount of heat energy during the phase change process is utilized. This can not only effectively reduce heat loss, maintain the stability of water temperature, and ensure the continuous supply of hot water, but also help the phase change heat storage layer to convert electrical energy into thermal energy and store it during non-water use periods, and then release the thermal energy during water use periods to meet the demand for large flow and higher temperature hot water.

[0040] The heat exchange tube 22 is made of stainless steel.

[0041] Since stainless steel has the characteristics of corrosion resistance, high thermal conductivity and high strength. Therefore, in a preferred embodiment of the present technical solution, the material of the heat exchange tube 22 is limited to stainless steel, so that the heat exchange tube 22 can resist scale and corrosion, thereby extending the service life of the heat exchange tube 22. At the same time, due to the high thermal conductivity of stainless steel, it is conducive to improving the heat exchange efficiency, avoiding heat loss, and thus reducing energy loss. In addition, the high mechanical strength of stainless steel enables it to withstand higher pressure and temperature changes, reducing performance degradation caused by material fatigue or deformation.

[0042] To further illustrate, the outer walls of two adjacent phase-change thermal storage layers 21 are in contact with each other.

[0043] In a preferred embodiment of the present technical solution, the outer surfaces of two adjacent phase change heat storage layers 21 are arranged to fit each other, which has the following advantages: first, the loss of heat energy during the transfer process is reduced, ensuring that the heat energy can be stored in the phase change heat storage layer 21 more efficiently; at the same time, when releasing heat energy, it can also ensure that the heat energy is transferred to the heat exchange tube 22 more quickly, and the cold water in the heat exchange tube 22 is heated to improve the heat exchange efficiency; second, since the heat energy is transferred between the same material layers without the difference in material properties, the thermal bridge effect can be minimized, the loss of heat energy can be reduced, and thus the energy consumption can be reduced; third, the structural stability of the entire heat exchange module 2 can be effectively enhanced, and the stability of the device can be improved.

[0044] Further, the heat exchange tube 22 includes an extension area 221 and a folding area 222 which are integrally formed and interconnected; the end of the extension area 221 is provided with a water inlet end of the heat exchange tube 22;

[0045] The folding area 222 includes a vertical segment 2221 and a horizontal segment 2222. The vertical segment 2221 and the horizontal segment 2222 are both provided in plurality. The plurality of vertical segments 2221 are provided in parallel, and the plurality of horizontal segments 2222 are alternately provided at both ends of the vertical segment 2221. A vertical segment 2221 and a horizontal segment 2222 are alternately connected in sequence, and the water outlet end of the heat exchange tube 22 is provided at the end of the outermost vertical segment 2221 in the folding area 222.

[0046] In a preferred embodiment of the present technical solution, by setting an extension area 221 and a folding area 222, and the folding area 222 includes a vertical section 2221 and a horizontal section 2222, not only the length of the heat exchange tube 22 is increased, but also the contact time and contact area between the moisture and the tube wall of the heat exchange tube 22 are increased by changing the flow direction of the moisture, that is, the heat exchange time and heat exchange area between the moisture and the phase change heat storage layer 21 are increased, and the heat exchange efficiency is further improved; in addition, the moisture flows through the folding area 222 for multiple times, so that the temperature of the moisture is more uniform when leaving the heat exchange tube 22, thereby improving the heat exchange effect.

[0047] To further illustrate, the thickness of the phase-change thermal storage layer 21 is 1-2 cm, and the material of the phase-change thermal storage layer is a polyol solid-solid phase change material.

[0048] When the phase-change thermal storage layer 21 is too thin, the heat exchange efficiency between the phase-change thermal storage layer 21 and the heat exchange tube 22 is limited; when the phase-change thermal storage layer 21 is too thick, the cost of the phase-change thermal storage layer 21 is too high. Figure 4 m), which is beneficial to obtain higher heat exchange efficiency at a lower cost.

[0049] Furthermore, since the phase change latent heat of the polyol solid-solid phase change material is large, it has a high heat storage and release efficiency, and has good thermal stability and chemical stability. Therefore, the preferred material of the phase change heat storage layer of the technical solution is a polyol solid-solid phase change material, which utilizes its high heat storage and release efficiency characteristics to meet the needs of large flow and high temperature hot water. At the same time, due to its good stability and chemical stability, it is conducive to stable operation under different environmental conditions.

[0050] Further, the housing 1 includes an inner housing 11 and an outer housing 12, wherein the inner housing 11 is located inside the outer housing 12, and a cavity is left between the inner housing 11 and the outer housing 12;

[0051] The inner shell 11 is a hollow structure with an opening at the top. The heat exchange module 2, the heating device 3, the water inlet interface 4 and the water outlet interface 5 are all located inside the inner shell 11, and the opening of the water inlet interface 4 and the opening of the water outlet interface 5 are both located at the top of the outer shell 12.

[0052] In a preferred embodiment of the present technical solution, by setting an inner shell 11 and an outer shell 12, the gap between the inner shell 11 and the outer shell 12 can be used for heat insulation to reduce heat loss; at the same time, the water inlet interface 4 and the water outlet interface 5 protrude from the top of the outer shell 12, which is more conducive to connection with external pipes.

[0053] Preferably, the inner shell 11 is made of glass wool.

[0054] Glass wool is a thermal insulation material made of glass fiber, which has good thermal insulation performance, can effectively reduce heat conduction and reduce energy consumption. Therefore, in a preferred embodiment of the present technical solution, glass wool is preferably used as the material of the inner shell 11, which is conducive to improving the thermal insulation effect of the outer shell 11, reducing the heat loss of the heat exchange module 2, and avoiding the water temperature in the heat exchange tube 22 from dropping too fast.

[0055] Further description, it also includes a first pressing block 6 and a second pressing block 7, the first pressing block 6 and the second pressing block 7 are located inside the inner shell 11, and the first pressing block 6 and the second pressing block 7 are staggered on the top of the heat exchange module 2, the first pressing block 6, the second pressing block 7, the heat exchange module 2 and the inner shell 11 together form a first installation gap, and the first installation gap is used to accommodate the water outlet interface 5;

[0056] The heat exchange module 2 , the heating device 3 , the first pressing block 6 and the second pressing block 7 together form a second installation gap, and the second accommodating gap is used to accommodate the water inlet interface 4 .

[0057] In a preferred embodiment of the present technical solution, a first clamping block 6 and a second clamping block 7 are provided to form a first installation gap for accommodating the water outlet interface 5 and a second installation gap for accommodating the water inlet interface 4, thereby improving the installation stability of the water inlet interface 4 and the water outlet interface 5 and preventing them from falling off during use.

[0058] Further description, a temperature detection sensor is also included. The temperature detection sensor is arranged inside the heat exchange tube 22 , and the temperature detection sensor is used to detect the water temperature of the heat exchange tube 22 .

[0059] In a preferred embodiment of the present technical solution, a temperature detection sensor (not shown) is provided to detect the water temperature of the heat exchange tube 22. Specifically, if the water temperature of the heat exchange tube 22 is too high or too low, the operator can adjust the heating power of the heating device 3 according to the water temperature of the heat exchange tube 22 obtained by the temperature detection sensor, so as to make the water temperature of the heat exchange tube 22 appropriate, enhance the adjustability and applicability of the equipment, and have a simple structure, reliable performance, and better meet the requirements of users.

[0060] Further description, it also includes a power regulator, the power regulator 8 is arranged on the outer wall of the shell 1, and the power regulator 8 is electrically connected to the heating device 3, and the power regulator 8 is used to adjust the heating power of the heating device 3.

[0061] In a preferred embodiment of the present technical solution, the heating power of the heating device 3 is adjusted by setting a power regulator 8. Specifically, if the water temperature of the heat exchange tube 22 is too high or too low, the operator can use the power regulator 8 to adjust the heating power of the heating device 3 according to the water temperature of the heat exchange tube 22 obtained by the temperature detection sensor, so that the water temperature of the heat exchange tube 22 is appropriate, thereby enhancing the adjustability and applicability of the equipment, and the structure is simple, the performance is reliable, and the requirements of the user are better met. At the same time, the temperature regulator 8 is arranged on the outer wall of the housing 1, which is conducive to improving the convenience of operating the temperature regulator 8.

[0062] Further description is made, and a flow sensor is also included. The flow sensor is arranged inside the water outlet interface 5 , and the flow sensor is used to detect the water outlet speed of the water outlet interface 5 .

[0063] In a preferred embodiment of the present technical solution, a flow sensor (not shown in the figure) is provided to detect the water flow rate of the heat exchange tube 22. Specifically, if the water outlet speed of the water outlet interface 5 is fast and the heating device 3 is in contact with cold water for a short time, resulting in the water temperature of the water outlet interface 5 being too low and failing to meet the operator's use requirements, the operator can obtain the water outlet speed data according to the flow sensor, thereby adjusting the water outlet speed of the external device connected to the water outlet interface 5. The operator can make adjustments according to actual conditions, thereby enhancing the adjustability and applicability of the device, and the structure is simple, the performance is reliable, and the user's requirements are better met.

[0064] To further explain, the heating device 3 includes any one of a heating plate and an electric heating tube.

[0065] The heating device 3 includes any one of a heating plate and an electric heating tube. The heating plate is made of a metal plate, which is heated by electric current and has the advantages of uniform heating, wide heating range, long service life, etc., and is suitable for heating various irregular shaped objects.

[0066] The electric heating tube is composed of a spiral resistance wire and a glass tube. It is heated by electric current. The electric heating tube has the advantages of fast heating speed, wide heating range and long service life. It is suitable for heating various media such as liquids and gases.

[0067] Therefore, in a preferred embodiment of the present technical solution, the heating device is set to be any one of a heating plate and an electric heating tube to meet actual application requirements.

[0068] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0069] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps described in these embodiments do not limit the scope of the utility model. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be regarded as a part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once a certain item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0070] In the description of the present utility model, it needs to be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present utility model; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0071] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0072] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the utility model.

[0073] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein.

[0074] The technical principle of the present invention is described above in combination with specific embodiments. These descriptions are only for explaining the principle of the present invention and cannot be interpreted as limiting the protection scope of the present invention in any way. Based on the explanations here, technicians in this field can think of other specific implementation methods of the present invention without creative work, and these methods will fall within the protection scope of the present invention.

Claims

1. A heat storage type small kitchen appliance, characterized in that: It includes a shell, a heat exchange module, a heating device, a water inlet interface and a water outlet interface; The heat exchange module, the heating device, the water inlet interface and the water outlet interface are all arranged inside the shell, and the opening of the water inlet interface and the opening of the water outlet interface are both located at the top of the shell; there are multiple heat exchange modules, and the multiple heat exchange modules are arranged in parallel, and the heating device is located at the top of the multiple heat exchange modules; The heat exchange module comprises a phase-change heat storage layer and a heat exchange tube, wherein the heat exchange tube is repeatedly folded and embedded in the phase-change heat storage layer; the heating device is used to heat the water in the heat exchange tube, and the phase-change heat storage layer is used to absorb the heat energy of the water in the heat exchange tube, and store and release the heat energy; The heat exchange tubes of two adjacent heat exchange modules are interconnected, and the heat exchange tubes of multiple heat exchange modules form a pipeline, the water inlet end of the pipeline is interconnected with the water inlet interface, and the water outlet end of the pipeline is interconnected with the water outlet interface.

2. The heat storage type kitchen appliance according to claim 1, characterized in that: The outer walls of two adjacent phase change heat storage layers are in contact with each other.

3. The heat storage type kitchen appliance according to claim 1, characterized in that: The heat exchange tube comprises an extension area and a folding area which are integrally formed and interconnected; the end of the extension area is provided with a water inlet end of the heat exchange tube; The folding area includes a vertical segment and a horizontal segment, and the number of the vertical segments and the number of the horizontal segments are both multiple. The multiple vertical segments are arranged in parallel, and the multiple horizontal segments are staggered at both ends of the vertical segments. One vertical segment and one horizontal segment are alternately connected in sequence, and the water outlet end of the heat exchange tube is arranged at the end of the outermost vertical segment in the folding area.

4. The heat storage type kitchen appliance according to claim 1, characterized in that: The thickness of the phase-change heat storage layer is 1-2 cm, and the material of the phase-change heat storage layer is a polyol solid-solid phase change material.

5. The heat storage type small kitchen appliance according to claim 1, characterized in that: The housing comprises an inner shell and an outer shell, wherein the inner shell is located inside the outer shell, and a cavity is left between the inner shell and the outer shell; The inner shell is a hollow structure with an opening at the top; the heat exchange module, the heating device, the water inlet interface and the water outlet interface are all located inside the inner shell, and the opening of the water inlet interface and the opening of the water outlet interface are both located at the top of the outer shell.

6. The heat storage type kitchen appliance according to claim 5, characterized in that: It also includes a first pressing block and a second pressing block, the first pressing block and the second pressing block are located inside the inner shell, and the first pressing block and the second pressing block are staggered on the top of the heat exchange module, the first pressing block, the second pressing block, the heat exchange module and the inner shell together form a first installation gap, and the first installation gap is used to accommodate the water outlet interface; The heat exchange module, the heating device, the first pressing block and the second pressing block together form a second installation gap, and the second installation gap is used to accommodate the water inlet interface.

7. The heat storage type kitchen appliance according to claim 1, characterized in that: It also includes a temperature detection sensor, which is arranged inside the heat exchange tube and is used to detect the water temperature of the heat exchange tube.

8. The heat storage type kitchen appliance according to claim 1, characterized in that: It also includes a power regulator, which is arranged on the outer wall of the shell and is electrically connected to the heating device. The power regulator is used to adjust the heating power of the heating device.

9. The heat storage type kitchen appliance according to claim 1, characterized in that: It also includes a flow sensor, which is arranged inside the water outlet interface and is used to detect the water outlet speed of the water outlet interface.

10. The heat storage type kitchen appliance according to claim 1, characterized in that: The heating device includes any one of a heating plate and an electric heating tube.

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