Refrigeration auxiliary heating water heater

Abstract

The utility model provides a refrigeration auxiliary heating water heater. The refrigeration auxiliary heating water heater comprises an inner container, a first passing opening, a second passing opening and a heat exchanger, wherein the first passing opening is formed in one side of the inner container and communicated with the inner container; the second passing opening is formed in the other side of the inner container and communicated with the inner container; the liquid medium has a first heat exchange flow direction between the first passing opening and the second passing opening; the first heat exchange flow direction comprises the convection direction of the liquid medium between the first passing opening and the second passing opening; the heat exchanger is internally provided with a heat exchange medium and comprises a first heat exchange face, and the first heat exchange face is arranged on a flowing path of a liquid medium and is perpendicular to the first heat exchange flowing direction. The liquid medium at least exchanges heat with the heat exchange medium in the first heat exchange surface; the heat exchange comprises heat exchange between a liquid medium with a first temperature and a heat exchange medium with a second temperature. The utility model provides a refrigeration auxiliary heating water heater with high heat exchange efficiency, which can meet various water demands in special areas.

Description

Technical Field

[0001] The utility model relates to the technical field of water heaters, and in particular to a refrigeration auxiliary heating water heater. Background Art

[0002] With the popularization of water heaters, people's functional requirements for water heaters are becoming more and more diverse. For traditional water heaters, it refers to a device that raises the temperature of cold water to hot water within a certain period of time. However, for a water heater in a broad sense, it should be understood as a device that adjusts the temperature of the input water source to a suitable temperature for use. At present, the water heater-related technologies on the market are mainly focused on how to improve the heating efficiency or energy utilization rate of water heaters, that is, how to use the least energy to complete cold water heating and recycle excess heat.

[0003] In water heaters that can recycle excess heat, heat pump / heat exchanger technology is usually used. For example, heat energy from the outside air is extracted through a compressor and transferred to the water tank of the water heater to heat cold water, or waste heat generated by the water heater is transferred to the outside space through a heat exchanger to generate cold air.

[0004] However, for areas with high water source temperatures, the temperature of tap water is already high, especially in the hot summer. The original water source temperature input to the water heater may even reach 40℃-60℃. If traditional water heaters are still used, it will not only waste energy, but also the output water temperature of the water heater will be difficult to meet the actual water demand. Therefore, a water heater capable of cooling is needed, which can not only meet the water demand of conventional heating of cold water, but also meet the water demand of summer in areas with high water source temperatures. At the same time, the heat exchanger used in traditional water heaters, such as Figure 1 As shown, the coil structure is usually attached to the wall of the water heater. When it is used in a water heater capable of cooling, its heat exchange efficiency is difficult to meet the water demand. Utility Model Content

[0005] The utility model aims to at least solve the technical problem in the prior art that there is a lack of a water heater with high heat exchange efficiency and capable of meeting various water demands in areas with high water source temperature in summer.

[0006] To this end, the utility model provides a refrigeration auxiliary heating water heater.

[0007] The utility model provides a refrigeration auxiliary heating water heater, comprising:

[0008] An inner tank, used for storing liquid medium;

[0009] A first through port is provided on one side of the inner container and communicates with the inner container;

[0010] A second through port is provided on the other side of the inner container and communicates with the inner container;

[0011] Wherein, the liquid medium has a first heat exchange flow direction between the first through port and the second through port;

[0012] Wherein, the first heat exchange flow direction includes the convection direction of the liquid medium between the first through port and the second through port;

[0013] A heat exchanger having a heat exchange medium therein and comprising at least a first heat exchange surface, wherein the first heat exchange surface is arranged in a flow path of the liquid medium and perpendicular to the first heat exchange flow direction;

[0014] Wherein, the liquid medium exchanges heat with the heat exchange medium at least in the first heat exchange surface;

[0015] The heat exchange includes exchanging heat between a liquid medium having a first temperature and a heat exchange medium having a second temperature.

[0016] The refrigeration auxiliary heating water heater according to the above technical solution of the utility model may also have the following additional technical features:

[0017] In the above technical solution, the first heat exchange surface is arranged between the first end of the inner container and the first through port, and has a first distance from the first through port;

[0018] Wherein, the first end of the inner container is the end of the inner container away from the second through opening;

[0019] The parameter setting of the first distance satisfies that the liquid medium flowing out of the inner tank through the first through port or the liquid medium flowing into the inner tank through the first through port exchanges heat at least on the first heat exchange surface.

[0020] In the above technical solution, the heat exchanger further comprises:

[0021] a second heat exchange surface, the second heat exchange surface being arranged in the flow path of the liquid medium and perpendicular to the first heat exchange flow direction, the second heat exchange surface being arranged between the first through port and the second through port;

[0022] The liquid medium flowing between the second through port and the first through port exchanges heat through the second heat exchange surface.

[0023] In the above technical solution, a temperature constraint space is formed between the first heat exchange surface and the second heat exchange surface, and the first through port is arranged in the temperature constraint space;

[0024] wherein the temperature fluctuation range of the liquid medium in the temperature constraint space is smaller than the temperature fluctuation range of the liquid medium outside the temperature constraint space;

[0025] Moreover, the temperature uniformity index of the liquid medium in the temperature constraint space is greater than the temperature uniformity index of the liquid medium outside the temperature constraint space.

[0026] In the above technical solution, the heat exchanger comprises:

[0027] The heat exchange tube has a flow channel for the heat exchange medium formed inside, and the heat exchange tube is at least partially arranged in a curved manner to form a first heat exchange surface and a second heat exchange surface.

[0028] In the above technical solution, the heat exchange tubes are at least partially arranged in a U-shape, an S-shape or an M-shape in the first heat exchange surface or the second heat exchange surface.

[0029] In the above technical solution, the heat exchanger further comprises:

[0030] A heat exchange structure, wherein a first heat exchange region formed by the heat exchange structure at least covers a second heat exchange region formed by the heat exchange tube;

[0031] Wherein, the second heat exchange region includes a first heat exchange surface and a second heat exchange surface.

[0032] In the above technical solution, the heat exchange structure includes:

[0033] Heat-conducting fins, wherein a heat radiation area formed by a plurality of the heat-conducting fins constitutes the first heat exchange area;

[0034] The liquid medium passes through the first heat exchange region and the second heat exchange region through convection between the first through port and the second through port.

[0035] In the above technical solution, the heat exchanger further comprises:

[0036] The fixing structure is connected to the heat exchange tube and fixed to the inner wall surface of the inner tank.

[0037] The above technical solution also includes:

[0038] The auxiliary heating pipe is arranged on one side of the inner tank where the second through-port is provided, and has a fixed end and an extended end, wherein the fixed end is connected to the inner tank, and the extended end is provided between the second through-port and the first through-port;

[0039] In the heating area formed by the auxiliary heating tube, at least the liquid medium flowing from the second through port to the first through port is heated;

[0040] Wherein, the cooling and auxiliary heating water heater has at least a first working mode and a second working mode;

[0041] When the cooling auxiliary heating water heater is in the first working mode, the heat exchanger is used for cooling, that is, the first temperature is greater than the second temperature, the auxiliary heating pipe is closed, the first through port is the water inlet, and the second through port is the water outlet;

[0042] When the cooling auxiliary heating water heater is in the second working mode, the heat exchanger is used for heating, that is, the first temperature is lower than the second temperature, the auxiliary heating pipe is turned on, the first through port is the water outlet, and the second through port is the water inlet.

[0043] In summary, due to the adoption of the above technical features, the beneficial effects of the utility model are:

[0044] The utility model provides a cooling auxiliary heating water heater, which can reduce the temperature of the input water source with a high temperature to the output water with a suitable temperature for use, at least to meet the summer water needs of special areas. In addition, the heat exchanger used has both cooling and heating functions. When the heat exchanger is heating, it is combined with the auxiliary heating pipe to achieve temperature control, ensuring that even when the input water source temperature is low, the output water is still at a suitable temperature.

[0045] Among them, the heat exchanger structure used is located on the cross section perpendicular to the convective heat transfer direction. Compared with the traditional heat exchanger structure, it can greatly improve the convective heat transfer efficiency of the water heater and at the same time can output the stability of the water temperature.

[0046] Additional aspects and advantages of the present invention will become apparent in the following description or will be understood through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0048] Figure 1 It is a schematic diagram of the structure of a heat exchanger traditionally used in water heaters;

[0049] Figure 2 This is a perspective view of a cooling and heating auxiliary water heater according to an embodiment of the utility model;

[0050] Figure 3 It is a cross-sectional view of a cooling and heating auxiliary water heater according to an embodiment of the utility model;

[0051] Figure 4 It is a structural schematic diagram of a heat exchanger in a cooling and heating auxiliary water heater according to an embodiment of the utility model;

[0052] Figure 5 yes Figure 4 A bottom view of the heat exchanger in the cooling and auxiliary heating water heater is shown.

[0053] in, Figures 1 to 5 The corresponding relationship between the reference numerals and the component names is as follows:

[0054] 1. Inner tank; 2. First water pipe; 3. Second water pipe; 4. Heat exchanger; 5. Auxiliary heating pipe; 21. First through port; 31. Second through port; 41. First heat exchange surface; 42. Second heat exchange surface; 43. Heat exchange tube; 44. Heat transfer fin; 45. Fixed structure. DETAILED DESCRIPTION

[0055] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0056] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited to the specific embodiments disclosed below.

[0057] Refer to the following Figures 2 to 5 To describe the refrigeration and auxiliary heating water heater provided according to some embodiments of the utility model.

[0058] Some embodiments of the present application provide a cooling and heating auxiliary water heater.

[0059] like Figures 2 to 5 As shown, the first embodiment of the utility model proposes a cooling and heating auxiliary water heater, including: an inner tank 1, a first water pipe 2, a second water pipe 3 and a heat exchanger 4. For the convenience of explanation, the present disclosure takes the spatial orientation (such as up, down, left, right, front, back, etc.) in the embodiment shown in the drawings as an example for explanation. It can be understood that the technical personnel in this field can adjust the specific spatial orientation according to actual needs under the limitation or inspiration of the content of the present disclosure. The adjustment methods include rotation, flipping, mirroring, etc., and the different spatial orientations formed accordingly should be included in the protection scope of the utility model.

[0060] The inner tank 1 is used to store liquid medium. It is understood that, in general, the liquid medium is tap water. In some special areas or after being processed by a specific device, the liquid medium is pure water or an aqueous solution. One end of the first water delivery pipe 2 is fixedly connected to the inner tank 1, and the other end has a first through port 21, such as Figure 2As shown, one end of the first water pipe 2 is fixed to the bottom of the inner tank 1, and the other end having a first through-port 21 extends toward the upper part of the inner tank 1; when the cooling and auxiliary heating water heater is in the cooling mode, i.e., the first working mode, the first water pipe 2 is used as a water inlet pipe, and the external water source flows into the inner tank 1 through the first water pipe 2; when the cooling and auxiliary heating water heater is in the heating mode, i.e., the second working mode, the first water pipe 2 is used as a water outlet pipe, and the water flow inside the inner tank 1 flows to the outside through the first water pipe 2 for use. One end of the second water pipe 3 is fixedly connected to the inner tank 1, and the other end has a second through-port 31. The second through-port 31 is arranged opposite to the first through-port 21, i.e., arranged on the other side of the inner tank 1 having the first through-port 21, for example Figure 2 and Figure 3 The lower part of the inner tank 1 is shown; when the cooling and auxiliary heating water heater is in the cooling mode, i.e., the first working mode, the second water pipe 3 is used as the water outlet pipe, and the water flow inside the inner tank 1 flows to the outside through the second water pipe 3 for use; when the cooling and auxiliary heating water heater is in the heating mode, i.e., the second working mode, the first water pipe 2 is used as the water inlet pipe, and the external water source flows into the inner tank 1 through the second water pipe 3. Under this setting mode, when the water heater is turned on, the liquid medium will form convection in the inner tank 1, and the convection direction includes flowing from the lower part of the inner tank 1 to the upper part of the inner tank 1 and from the upper part of the inner tank 1 to the lower part of the inner tank 1, that is, the liquid medium has a first heat exchange flow direction between the first through port 21 and the second through port 31, and the first heat exchange flow direction includes the convection direction of the liquid medium between the first through port 21 and the second through port 31; it can be understood that the first heat exchange flow direction describes the main flow direction of the water flow in the inner tank 1.

[0061] The heat exchanger 4 has cooling and heating functions. Specifically, there is a heat exchange medium inside the heat exchanger 4. The liquid medium flowing through the heat exchanger 4 or around the heat exchanger 4 will exchange heat with the heat exchange medium inside the heat exchanger 4. Specifically, the heat in the liquid medium flows to the heat exchange medium during cooling, and the heat in the heat exchange medium flows to the liquid medium during heating. The heat exchanger 4 includes at least a first heat exchange surface 41, which is arranged in the flow path of the liquid medium and perpendicular to the first heat exchange flow direction; that is, when the water flow in the inner tank 1 is convective, it will form a flushing of the first heat exchange surface 41 in the vertical direction, so as to exchange heat with the heat exchange medium in the first heat exchange surface 41, which can effectively improve the heat exchange efficiency. It should be noted that the heat exchange surface referred to in the present disclosure is a surface that can perform relatively uniform heat exchange with the liquid medium in the entire heat exchange surface.

[0062] In the application scenario of the present disclosure, the temperature of the liquid medium is defined as the first temperature, and the temperature of the heat exchange medium is defined as the second temperature. In the cooling mode (first working mode), in order to ensure the progress of heat exchange, that is, to effectively reduce the temperature of the water output by the water heater, the second temperature should be significantly lower than the first temperature. In the heating mode (second working mode), the second temperature should be higher than the first temperature, but in some cases, even in the heating mode, the second temperature can be lower than the first temperature, as long as it can ensure that the heat of the heat exchange medium flows to the liquid medium.

[0063] In some embodiments, the first heat exchange surface 41 is disposed between the first end of the inner tank 1 and the first through port 21, and has a first distance from the first through port 21; wherein the first end of the inner tank 1 is the end of the inner tank 1 away from the second through port 31; Figure 4 , the first end of the inner tank 1 is the upper end of the inner tank 1, that is, the first heat exchange surface 41 is located above the first through port 21, wherein the setting of the first distance should satisfy the requirement that the liquid medium flowing out of the inner tank 1 through the first through port 21 or the liquid medium flowing into the inner tank through the first through port 21 at least exchanges heat on the first heat exchange surface 41, that is, the water flow near the first through port 21 needs to exchange heat with the first heat exchange surface 41 before entering the inner tank 1 or flowing out of the inner tank 1. The closer the distance between the first heat exchange surface 41 and the first through port 21, that is, the smaller the first distance, the better the effect of the heat exchange mode, so the first distance should be greater than 0. Furthermore, since the first heat exchange surface 41 is arranged above the first through port 21, it is divided into the following two situations. When the first through port 21 is a water inlet, the water flow entering the inner tank 1 will directly flush the first heat exchange surface 41 to cool down, thereby forming a convective heat exchange in which hot water rises and cold water falls in the inner tank 1; when the first through port 21 is a water outlet, the water flow in the inner tank 1 will pass through the first heat exchange surface 41 once when it rises by convection. When part of the water flow rises to the upper end of the inner tank 1 by convection, it will be passively reflected and pass through the first heat exchange surface 41 again, and then flow out through the first through port 21, which is also a convective heat exchange method in which hot water rises and cold water falls.

[0064] In some embodiments, in addition to the first heat exchange surface 41 , the heat exchanger 4 may also have a plurality of heat exchange surfaces, such as two, three, four, etc., to improve the cooling speed and cooling effect.

[0065] In a specific embodiment, the heat exchanger 4 further includes a second heat exchange surface 42, which is also arranged in the flow path of the liquid medium and perpendicular to the first heat exchange flow direction, specifically parallel to the first heat exchange surface 41; wherein the second heat exchange surface 42 is arranged between the first through port 21 and the second through port 31; that is, the convection between the first through port 21 and the second through port 31 must exchange heat with the second heat exchange surface 42 before being output through the first through port 21 or the second through port 31; the influence of a small portion of the water flow that fails to fully exchange heat with the first heat exchange surface 41 in the heat exchanger 4 being directly output through the first through port 21 in the heating mode can be reduced; the temperature reduction efficiency of the water flow input to the inner tank 1 from the first through port 21 can also be improved in the cooling mode. It should be noted that most of the water flow needs to undergo two heat exchanges between the first heat exchange surface 41 and the second heat exchange surface 42.

[0066] Through the above arrangement, a temperature constraint space is formed between the first heat exchange surface 41 and the second heat exchange surface 42. The temperature constraint space can be regarded as a relatively closed space, and the first through port 21 is arranged in the temperature constraint space; in the temperature constraint space, the temperature of the water flow is more stable, and the average temperature is also lower than the average temperature of the water flow outside the space. Specifically, the temperature fluctuation range of the liquid medium in the temperature constraint space is smaller than the temperature fluctuation range of the liquid medium outside the temperature constraint space; it can be understood that the smaller the temperature fluctuation range, the closer the upper and lower limits of its temperature are, that is, the better the temperature uniformity. The temperature uniformity index of the liquid medium in the temperature constraint space is greater than the temperature uniformity index of the liquid medium outside the temperature constraint space. It can be understood that the temperature uniformity index is used to measure the uniformity of the temperature distribution in the entire space. The higher the index, the more uniform the temperature distribution; that is, the larger the temperature uniformity index, the better the temperature consistency.

[0067] In some embodiments, the heat exchanger 4 includes a heat exchange tube 43, and a flow channel for a heat exchange medium is formed inside the heat exchange tube 43. The heat exchange medium can be a conventional refrigeration medium such as air or refrigerant. The heat exchange medium flows into the heat exchange tube 43 from the input end and flows out from the output end. Figure 4 In the illustrated embodiment, the input end and the output end of the heat exchange tube 43 are arranged on the same side of the inner tank 1. The heat exchange tube 43 is at least partially arranged in a curved manner to form a first heat exchange surface 41 and a second heat exchange surface 42. By means of a curved arrangement, it can be ensured that when there is only one input end and output end, the laying area of ​​the heat exchange tube 43 in the first heat exchange surface 41 and the second heat exchange surface 42, i.e., the heat radiation area, is large, so as to improve the cooling and heating efficiency.

[0068] In some embodiments, the heat exchange tubes 43 are arranged at least partially in a U-shape, S-shape or M-shape in the first heat exchange surface 41 or the second heat exchange surface 42. Figure 5As shown, the heat exchange tubes 43 are evenly arranged in the first heat exchange surface 41 or the second heat exchange surface 42, and the cross-sections of the heat exchange tubes 43 in the first heat exchange surface 41 and the heat exchange tubes 43 in the second heat exchange surface 42 are symmetrical patterns. This can not only improve the uniformity of heat exchange, but also reduce fluid noise during the heat exchange process.

[0069] In some embodiments, the heat exchanger 4 further comprises a heat exchange structure, wherein the first heat exchange region formed by the heat exchange structure at least covers the second heat exchange region formed by the heat exchange tube 43; wherein the second heat exchange region comprises a first heat exchange surface 41 and a second heat exchange surface 42. Specifically, the heat exchange structure comprises a heat conducting fin 44, and a heat radiation region formed by a plurality of the heat conducting fins 44 constitutes the first heat exchange region; the convection of the liquid medium between the first through port 21 and the second through port 31 passes through the first heat exchange region and the second heat exchange region. wherein the heat conducting fin 44 may be columnar, sheet-like, filamentary or other suitable irregular shapes, such as metal wire, and the function of the heat conducting fin 44 is to establish heat conduction between different sections of the heat exchange tube 43 and enhance the stability of the overall structure of the heat exchange tube 43. when the metal wire is perpendicular to the heat exchange tube 43, the metal wire and the heat exchange tube 43 will form a grid shape, which is equivalent to increasing the density, that is, improving the uniformity of heat exchange. in a specific embodiment, a plurality of metal wires are parallel to each other and perpendicular to the heat exchange tube 43, and the spacing between adjacent metal wires is greater than 6mm.

[0070] In a specific embodiment, Figure 4 As shown, a metal wire may be provided between the first heat exchange surface 41 and the second heat exchange surface 42 for connection.

[0071] In some embodiments, in order to facilitate the fixation of the heat exchanger 4 , a fixing structure 45 of the heat exchanger 4 is also designed. The fixing structure 45 is connected to the heat exchange tube 43 and fixed to the inner wall surface of the inner tank 1 .

[0072] In some embodiments, the cooling and auxiliary heating water heater also includes an auxiliary heating pipe 5, which is arranged on a side of the inner tank 1 where the second through port 31 is provided, that is, the lower part of the inner tank 1, and its fixed end is connected to the inner tank 1, and its extended end is arranged between the second through port 31 and the first through port 21; in the heating mode, when the temperature of the water flow input into the inner tank 1 through the second through port 31 is relatively low, the auxiliary heating pipe 5 can be used to heat the surrounding area thereof to ensure that the water temperature output by the water heater meets the use requirements.

[0073] Specifically, the switching between the first working mode and the second working mode of the refrigeration and auxiliary heating water heater can be performed according to the water temperature of the water source. The switching method can be manual or automatic. When manual switching is performed, the external tap water inlet pipe and the water pipe need to be swapped, and a switching valve can also be set between the two to ensure the correct application of the first water pipe and the second water pipe in different working modes.

[0074] In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0075] Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of this utility model should be included in the protection scope of this utility model.

Claims

1. A cooling and heating water heater, characterized in that: include: An inner container (1) for storing a liquid medium; A first through port (21) is disposed on one side of the inner container (1) and is in communication with the inner container (1); A second through port (31) is disposed on the other side of the inner container (1) and is in communication with the inner container (1); Wherein, the liquid medium has a first heat exchange flow direction between the first through port (21) and the second through port (31); Wherein, the first heat exchange flow direction includes the convection direction of the liquid medium between the first through port (21) and the second through port (31); A heat exchanger (4) having a heat exchange medium therein and comprising at least a first heat exchange surface (41), wherein the first heat exchange surface (41) is arranged in a flow path of the liquid medium and is perpendicular to the first heat exchange flow direction; wherein the liquid medium exchanges heat with the heat exchange medium at least in the first heat exchange surface (41); The heat exchange includes exchanging heat between a liquid medium having a first temperature and a heat exchange medium having a second temperature.

2. The cooling and heating auxiliary water heater according to claim 1, characterized in that: The first heat exchange surface (41) is arranged between the first end of the inner container (1) and the first through port (21), and has a first distance from the first through port (21); Wherein, the first end of the inner container (1) is the end of the inner container (1) away from the second through opening (31); The parameter setting of the first distance satisfies that the liquid medium flowing out of the inner tank (1) through the first through port (21) or the liquid medium flowing into the inner tank through the first through port (21) can at least exchange heat on the first heat exchange surface (41).

3. The cooling and heating auxiliary water heater according to claim 1, characterized in that: The heat exchanger (4) further comprises: A second heat exchange surface (42), the second heat exchange surface (42) being arranged in the flow path of the liquid medium and perpendicular to the first heat exchange flow direction, the second heat exchange surface (42) being arranged between the first through port (21) and the second through port (31); The liquid medium flowing between the second through port (31) and the first through port (21) exchanges heat via the second heat exchange surface (42).

4. The cooling and heating auxiliary water heater according to claim 3, characterized in that: A temperature constraint space is formed between the first heat exchange surface (41) and the second heat exchange surface (42), and the first through port (21) is arranged in the temperature constraint space; wherein the temperature fluctuation range of the liquid medium in the temperature constraint space is smaller than the temperature fluctuation range of the liquid medium outside the temperature constraint space; Moreover, the temperature uniformity index of the liquid medium in the temperature constraint space is greater than the temperature uniformity index of the liquid medium outside the temperature constraint space.

5. The cooling and heating auxiliary water heater according to claim 3, characterized in that: The heat exchanger (4) comprises: The heat exchange tube (43) has a flow channel for a heat exchange medium formed therein, and the heat exchange tube (43) is at least partially arranged in a curved manner to form a first heat exchange surface (41) and a second heat exchange surface (42).

6. The cooling and heating auxiliary water heater according to claim 5, characterized in that: The heat exchange tubes (43) are at least partially arranged in a U-shape, an S-shape, or an M-shape within the first heat exchange surface (41) or the second heat exchange surface (42).

7. The cooling and heating auxiliary water heater according to claim 5, characterized in that: The heat exchanger (4) further comprises: A heat exchange structure, wherein a first heat exchange region formed by the heat exchange structure at least covers a second heat exchange region formed by the heat exchange tube (43); Wherein, the second heat exchange region comprises a first heat exchange surface (41) and a second heat exchange surface (42).

8. The cooling and heating auxiliary water heater according to claim 7, characterized in that: The heat exchange structure comprises: Heat-conducting fins (44), wherein a heat radiation area formed by a plurality of the heat-conducting fins (44) constitutes the first heat exchange area; The liquid medium convects between the first through port (21) and the second through port (31) through the first heat exchange region and the second heat exchange region.

9. The cooling and heating auxiliary water heater according to claim 5, characterized in that: The heat exchanger (4) further comprises: The fixing structure (45) is connected to the heat exchange tube (43) and fixed to the inner wall surface of the inner tank (1).

10. The cooling and heating auxiliary water heater according to claim 1, characterized in that: Also includes: an auxiliary heating pipe (5), arranged on a side of the inner container (1) provided with the second through opening (31), having a fixed end and an extended end, the fixed end being connected to the inner container (1), and the extended end being arranged between the second through opening (31) and the first through opening (21); In the heating area formed by the auxiliary heating pipe (5), at least the liquid medium flowing from the second through port (31) to the first through port (21) is heated; Wherein, the cooling and auxiliary heating water heater has at least a first working mode and a second working mode; When the cooling and auxiliary heating water heater is in the first working mode, the heat exchanger (4) is used for cooling, that is, the first temperature is greater than the second temperature, the auxiliary heating pipe (5) is closed, the first through port (21) is the water inlet, and the second through port (31) is the water outlet; When the cooling and auxiliary heating water heater is in the second working mode, the heat exchanger (4) is used for heating, that is, the first temperature is lower than the second temperature, the auxiliary heating pipe (5) is turned on, the first through port (21) is the water outlet, and the second through port (31) is the water inlet.

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