Water tank of water heater and water heater

Abstract

The water tank of the water heater comprises a tank body, a heater and a heat exchange pipe, a liquid storage space is formed in the tank body, the heater is arranged in the tank body and used for heating the liquid storage space, and the heat exchange pipe is arranged in the liquid storage space and suitable for exchanging heat with the liquid storage space. And at least one of a first convex part and a first concave part is formed on the inner wall of the heat exchange tube. By forming at least one of the first convex part and the first concave part on the inner wall of the heat exchange tube, water in the heat exchange tube can generate turbulent flow when flowing through the first convex part or the first concave part, the flowing state of the turbulent flow can be changed, and turbulent flow or vortex is formed, so that the water in the heat exchange tube is in full contact with the inner wall of the heat exchange tube, the contact area is increased, and the heat exchange efficiency is improved. Heat can be quickly and effectively transferred to water in the heat exchange pipe from the liquid storage space, the heat exchange efficiency and the heat exchange effect are improved, and energy is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of household appliances, in particular to a water tank of a water heater and a water heater. Background Art

[0002] A water heater is a common household water heating device that uses electrical heating to heat tap water or water of suitable quality to a set temperature for daily use. In the related art, the heat exchanger of the water heater does not exchange heat sufficiently, resulting in low heat exchange efficiency and poor heat exchange effect. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the related art. To this end, the utility model proposes a water tank of a water heater, aiming to solve the defects of insufficient heat exchange and poor heat exchange effect of the heat exchanger.

[0004] An embodiment of the second aspect of the utility model provides a water heater.

[0005] The water tank of the water heater according to the embodiment of the utility model comprises:

[0006] A box body is formed with a liquid storage space;

[0007] A heater, disposed in the box body, to heat the liquid storage space;

[0008] A heat exchange tube is arranged in the liquid storage space to exchange heat with the liquid storage space, and the inner wall of the heat exchange tube is formed with at least one of a first protrusion and a first recess.

[0009] According to the water tank of the water heater of the embodiment of the utility model, the water tank of the water heater includes a box body, a heater and a heat exchange tube, the box body is formed with a liquid storage space, the heater is arranged in the box body for heating the liquid storage space, the heat exchange tube is arranged in the liquid storage space, suitable for exchanging heat with the liquid storage space, and the inner wall of the heat exchange tube is formed with at least one of a first protrusion and a first recessed portion. By forming at least one of the first protrusion or the first recessed portion on the inner wall of the heat exchange tube, the water in the heat exchange tube will generate turbulence when flowing through the first protrusion or the first recessed portion, breaking the laminar flow state, so that the water in the heat exchange tube is fully in contact with the inner wall of the heat exchange tube, increasing the contact area, and the heat can be transferred from the liquid storage space to the water in the heat exchange tube more quickly, thereby improving the heat exchange efficiency and heat exchange effect, and saving energy.

[0010] According to the water tank of the water heater of the utility model,

[0011] The number of the first protrusions is multiple, and the multiple first protrusions are arranged at intervals along the extension direction of the heat exchange tube;

[0012] And / or, there are multiple first recessed portions, and the multiple first recessed portions are arranged at intervals along the extension direction of the heat exchange tube.

[0013] According to the water tank of the water heater of the embodiment of the utility model, the first protrusions and the first recesses are arranged alternately in sequence.

[0014] According to the water tank of the water heater of the embodiment of the utility model, the first protrusion is annularly arranged on the inner wall of the heat exchange tube;

[0015] and / or,

[0016] The first recessed portion is annularly arranged on the inner wall of the heat exchange tube.

[0017] According to the water tank of the water heater of the embodiment of the utility model, the exterior of the heat exchange tube is formed with a plurality of second raised portions and second recessed portions spaced apart along the extending direction of the heat exchange tube;

[0018] Alternatively, a plurality of heat exchange fins are disposed outside the heat exchange tube and are spaced apart along an extension direction of the heat exchange tube.

[0019] According to the water tank of the water heater of the embodiment of the utility model, the heater is arranged at the bottom of the liquid storage space, the water inlet end of the heat exchange tube is arranged corresponding to the bottom of the liquid storage space, and the water outlet end of the heat exchange tube is arranged corresponding to the top of the liquid storage space.

[0020] According to the water tank of the water heater of the embodiment of the utility model, the heat exchange tube is a stainless steel tube.

[0021] According to the water tank of the water heater of the embodiment of the utility model, the side wall of the tank body is provided with an internal thread, the heater is provided with a mounting seat, and the mounting seat is provided with an external thread coupled with the internal thread so that the mounting seat is threadedly connected to the side wall of the tank body.

[0022] According to the water tank of the water heater of the embodiment of the utility model, the tank body is provided with an exhaust passage, and the exhaust passage connects the space above the liquid level in the liquid storage space with the outside world.

[0023] An embodiment of the second aspect of the utility model provides a water heater, including the water heater described in any one of the above embodiments.

[0024] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the utility model or related technologies, the drawings required for use in the embodiments or related technical descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 It is a schematic diagram of the structure of a water tank of a water heater provided by an embodiment of the utility model;

[0027] Figure 2 It is a cross-sectional schematic diagram of a water tank of a water heater provided by an embodiment of the utility model;

[0028] Figure 3 yes Figure 2 A local enlarged schematic diagram of the middle A;

[0029] Figure 4 It is a partial structural schematic diagram of the interior of a water tank of a water heater provided in an embodiment of the utility model.

[0030] Reference numerals:

[0031] 100, box body; 110, liquid storage space; 120, exhaust passage;

[0032] 200, heater; 201, mounting base;

[0033] 300, heat exchange tube; 301, first protrusion; 302, first recess; 303, second protrusion; 304, second recess. DETAILED DESCRIPTION

[0034] The following is a further detailed description of the implementation of the present utility model in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present utility model, but cannot be used to limit the scope of the present utility model.

[0035] In the description of the embodiments of the present utility model, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the embodiments of the present utility model. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0036] In the description of the embodiments of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present utility model can be understood according to specific circumstances.

[0037] In the embodiments of the present invention, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0038] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model embodiment. 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 may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0039] A water heater is a common household hot water device that uses electricity to heat tap water or water of suitable quality to a set temperature for daily use. In the related art, the water flow in the heat exchanger of the water heater is relatively stable, and the heat exchange is insufficient, resulting in low heat exchange efficiency and poor heat exchange effect.

[0040] The embodiments of the present utility model refer to Figure 1-Figure 4 As shown, a water tank of a water heater and a water heater are provided.

[0041] According to an embodiment of the present utility model, please refer to Figure 1-Figure 3As shown, the water tank of the water heater according to the embodiment of the utility model includes a box body 100, which is formed with a liquid storage space 110; a heater 200, which is arranged in the box body 100 to heat the liquid storage space 110; a heat exchange tube 300, which is arranged in the liquid storage space 110 to exchange heat with the liquid storage space 110, and the inner wall of the heat exchange tube 300 is formed with at least one of a first protrusion 301 and a first recessed portion 302.

[0042] It can be understood that in this embodiment, the box body 100 forms a liquid storage space 110, and the heater 200 is arranged in the liquid storage space 110. The main function of the heater 200 is to convert electrical energy or other energy forms into thermal energy and transfer the thermal energy to the surrounding water to heat the water in the liquid storage space 110.

[0043] Exemplarily, the type and structure of the heater 200 include, but are not limited to, a glass tube, a quartz tube heater 200 or a water inlet heater 200, etc., which can be selected according to specific application scenarios and design requirements, and this embodiment does not specifically limit this.

[0044] At least one of the first protrusion 301 and the first depression 302 is designed on the inner wall of the heat exchange tube 300. These protrusions and depressions can be regular geometric shapes, such as circular, square or spiral, or randomly distributed concave-convex structures. The main purpose of these structures is to produce a turbulent effect when water flows through, to prevent the water from flowing smoothly in the heat exchange tube 300, thereby increasing the contact area between water and the inner wall of the heat exchange tube 300 and improving the heat exchange efficiency.

[0045] When the water flows through the heat exchange tube 300, if the flow is too stable, the contact area between the water and the inner wall of the heat exchange tube 300 will be relatively limited, and the efficiency of heat transfer will also be limited. However, by forming convex and concave structures on the inner wall of the heat exchange tube 300, when the water flows through these structures, its flow state will change, forming turbulence or vortex.

[0046] This turbulence effect can greatly increase the contact area between water and the inner wall of the heat exchange tube 300, so that heat can be transferred from the heat exchange tube 300 to the water more quickly and effectively. At the same time, the turbulence can also make the temperature distribution in the water flow more uniform, further improving the heat exchange efficiency.

[0047] Specifically, when water flows in the heat exchange tube 300, it will be forced to change its flow direction when encountering a protrusion, forming vortices and turbulence; and when encountering a depression, the water flow will accelerate and generate shear force. These changes make the contact between water and the inner wall of the heat exchange tube 300 more frequent and sufficient, thereby achieving more efficient heat exchange.

[0048] In an optional embodiment, only the first protrusion 301 may be provided on the inner wall of the heat exchange tube 300. In another optional embodiment, only the first recessed portion 302 may be provided on the inner wall of the heat exchange tube 300. In another optional embodiment, both the first protrusion 301 and the first recessed portion 302 may be provided on the inner wall of the heat exchange tube 300. The provision of both the first protrusion 301 and the first recessed portion 302 can produce a more complex turbulence effect, so that the water flow continuously changes direction and speed when flowing in the heat exchange tube 300, thereby maximizing the contact area between water and the inner wall of the heat exchange tube 300.

[0049] In this embodiment, the heat exchange tube 300 can exchange heat with the liquid storage space 110. During the operation of the water heater, the heater 200 is responsible for heating the water in the liquid storage space 110 in the box 100 to a set temperature. However, when the user needs to use hot water, the water is not taken directly from the liquid storage space 110, but the heat exchange between water and water is realized through the heat exchange tube 300.

[0050] Specifically, the housing 100 may be provided with a water inlet pipe and a water outlet pipe, one end of the heat exchange tube 300 is connected to the water inlet pipe, and the other end is connected to the water outlet pipe. When the user turns on the water heater, cold water enters the water heater through the water inlet pipe and first flows through the first heat exchange section of the heat exchange tube 300. Since the first heat exchange section is adjacent to the heater 200, the water temperature here is relatively high, and the cold water will quickly absorb heat here and begin to heat up. Then, the water that has been preliminarily heated will flow through the second heat exchange section, which is located in the liquid storage space 110 outside the heater 200. Here, the water will exchange heat with the hot water in the liquid storage space 110, further absorbing heat, so that the water temperature continues to rise.

[0051] Through this heat exchange method, users can obtain hot water with suitable temperature and ready to use without waiting for the water in the entire liquid storage space 110 to be heated to the set temperature. At the same time, since the heat exchange tube 300 is used for heat exchange, the freshness of the hot water can be ensured, avoiding the problem of bacterial growth and water quality degradation caused by long-term storage.

[0052] According to the water tank of the water heater of the embodiment of the utility model, the water tank of the water heater includes a tank body 100, a heater 200 and a heat exchange tube 300. The tank body 100 is formed with a liquid storage space 110. The heater 200 is arranged in the tank body 100 for heating the liquid storage space 110. The heat exchange tube 300 is arranged in the liquid storage space 110 and is suitable for exchanging heat with the liquid storage space 110. The inner wall of the heat exchange tube 300 is formed with at least one of a first protrusion 301 and a first recessed portion 302. By forming at least one of the first protrusion 301 or the first depression 302 on the inner wall of the heat exchange tube 300, the water in the heat exchange tube 300 will generate turbulence when flowing through the first protrusion 301 or the first depression 302, breaking the laminar flow state, so that the water in the heat exchange tube 300 is in full contact with the inner wall of the heat exchange tube 300, increasing the contact area, and heat can be transferred from the liquid storage space 110 to the water in the heat exchange tube 300 more quickly, thereby improving the heat exchange efficiency and heat exchange effect and saving energy.

[0053] According to one embodiment of the present invention, referring to Figure 2 and Figure 3 As shown, the number of at least one of the first protrusion 301 and the second recess 304 is plural, which can further enhance the heat exchange effect and improve the heat exchange efficiency.

[0054] In an optional embodiment, there are multiple first protrusions 301, and the multiple first protrusions 301 are arranged at intervals along the extension direction of the heat exchange tube 300. This design allows the water flow to continuously encounter the first protrusions 301 arranged at intervals for multiple times when flowing through the heat exchange tube 300, thereby continuously generating turbulence and turbulence, which can significantly increase the contact area between the water and the inner wall of the heat exchange tube 300, thereby accelerating the heat transfer process and improving the overall heat exchange efficiency.

[0055] The first protrusions 301 arranged at intervals can also ensure that the water flow in the heat exchange tube 300 is more evenly distributed, avoiding too fast or too slow water flow in certain areas, thereby maintaining the stability and consistency of the heat exchange process.

[0056] In addition, according to specific application scenarios and requirements, the number, size, shape and spacing of the first protrusions 301 can be flexibly designed to achieve the best heat exchange effect. For example, when a stronger heat exchange effect is required, the number of first protrusions 301 can be increased or their spacing can be reduced; and when a higher requirement for water flow stability is required, the number of first protrusions 301 can be appropriately reduced or their spacing can be increased. The flexibility and adjustability of this design enable the water heater to adapt to different usage scenarios and requirements, providing a more efficient and stable hot water supply.

[0057] In another optional embodiment, the number of the first recessed portions 302 is multiple, and the multiple first recessed portions 302 are arranged at intervals along the extension direction of the heat exchange tube 300. This design allows the water flow to continuously encounter the first recessed portions 302 arranged at intervals for multiple times when flowing through the heat exchange tube 300. When the water flows through these recessed portions, the flow rate will accelerate and shear force will be generated, forming turbulence and turbulence, thereby increasing the contact area between the water and the inner wall of the heat exchange tube 300. This increased contact area helps heat to be more effectively transferred from the heat exchange tube 300 to the water, thereby improving the heat exchange efficiency. In addition, the multiple first recessed portions 302 are arranged at intervals along the extension direction of the heat exchange tube 300, which can ensure that the water flow is more evenly distributed in the heat exchange tube 300. This helps to avoid the water flow in some areas being too fast or too slow, thereby maintaining the stability and consistency of the entire heat exchange process. Similarly, the number, size, shape and spacing distance between the first recessed portions 302 can also be designed according to specific application scenarios and requirements, and this embodiment does not specifically limit this.

[0058] In another optional embodiment, the inner wall of the heat exchange tube 300 is provided with a plurality of first protrusions 301 and a plurality of first recesses 302 , and the plurality of first protrusions 301 and the plurality of first recesses 302 are arranged at intervals along the extension direction of the heat exchange tube 300 .

[0059] According to one embodiment of the present invention, referring to Figure 2 and Figure 3 As shown, the inner wall of the heat exchange tube 300 is provided with a plurality of first protrusions 301 and first recesses 302 , and the first protrusions 301 and the first recesses 302 are alternately arranged in sequence.

[0060] It is understandable that this alternating arrangement can greatly enhance the heat exchange effect and improve the heat exchange efficiency. When the water flows through the heat exchange tube 300, it will first encounter the first protrusion 301, generating disturbance and turbulence, causing the direction and speed of the water flow to change, thereby increasing the contact area between the water and the inner wall of the heat exchange tube 300. Then, the water will flow through the first recessed portion 302, where the flow rate will increase, forming shear force, and further promoting heat transfer.

[0061] Since the first protrusions 301 and the first recesses 302 are arranged alternately, the effects of the turbulence and shear force are continuously generated inside the heat exchange tube 300, thereby making the heat exchange effect more significant. At the same time, this design can also ensure that the water flow is more evenly distributed inside the heat exchange tube 300, avoiding the problem of too fast or too slow water flow in certain areas, and improving the stability and consistency of the heat exchange process.

[0062] According to one embodiment of the present invention, referring to Figure 2 and Figure 3As shown, at least one of the first protrusion 301 and the first recess 302 is annularly disposed on the inner wall of the heat exchange tube 300 .

[0063] In an optional embodiment, the first protrusion 301 is annularly arranged on the inner wall of the heat exchange tube 300. The arrangement of the annular first protrusion 301 on the inner wall of the heat exchange tube 300 can not only enhance the heat exchange effect in the extension direction of the heat exchange tube 300, but also ensure that the water flow can be uniformly disturbed in the circumferential direction of the cross section of the entire heat exchange tube 300.

[0064] Regardless of the direction from which the water flows into the heat exchange tube 300, it will be uniformly disturbed when flowing through the annular first protrusion 301. This uniform disturbance in the circumferential direction can ensure that every part of the inner wall of the heat exchange tube 300 can be fully in contact with the water, thereby avoiding insufficient heat transfer or too slow water flow in certain areas.

[0065] This circumferentially uniform disturbance can also promote the mixing and rotation of the water flow, further increasing the contact area between the water and the inner wall of the heat exchange tube 300, thereby improving the heat exchange efficiency. It is particularly suitable for occasions that require efficient and uniform heat exchange.

[0066] In another optional embodiment, the first recessed portion 302 is annularly arranged on the inner wall of the heat exchange tube 300, and the annular first recessed portion 302 ensures that the water flow can be uniformly disturbed in the circumferential direction of the cross section of the entire heat exchange tube 300. This means that no matter from which direction the water flows into the heat exchange tube 300, it will be uniformly guided when flowing through the annular first recessed portion 302, forming eddies and turbulence. This uniform disturbance in the circumferential direction can ensure that every part of the inner wall of the heat exchange tube 300 can be fully in contact with the water, thereby avoiding insufficient heat transfer or too slow water flow in certain areas.

[0067] In another optional embodiment, the first protrusion 301 and the first recess 302 are both arranged in a ring shape on the inner wall of the heat exchange tube 300 .

[0068] According to one embodiment of the present invention, referring to Figure 2 and Figure 3 As shown, the outside of the heat exchange tube 300 is formed with a plurality of second protrusions 303 and second recesses 304 arranged at intervals along the extension direction of the heat exchange tube 300; or, the outside of the heat exchange tube 300 is provided with a plurality of heat exchange fins (not shown in the figure) arranged at intervals along the extension direction of the heat exchange tube 300.

[0069] In an optional embodiment, a plurality of second protrusions 303 and second recesses 304 are formed on the outside of the heat exchange tube 300 and are arranged at intervals along the extension direction of the heat exchange tube 300. By arranging the second protrusions 303 and the second recesses 304 on the outside of the heat exchange tube 300, the contact area between the outer wall of the heat exchange tube 300 and the hot water in the liquid storage space 110 is increased, thereby greatly improving the heat exchange area and heat exchange efficiency.

[0070] In another optional embodiment, the outside of the heat exchange tube 300 is provided with a plurality of heat exchange fins arranged at intervals along the extension direction of the heat exchange tube 300. The heat exchange fins can significantly increase the contact area between the heat exchange tube 300 and the hot water in the liquid storage space 110, thereby enhancing heat transfer.

[0071] At the same time, the shape, size and arrangement of the heat exchange fins can also be adjusted according to specific heat exchange requirements. For example, the heat exchange fins can be designed to be straight, corrugated or spiral, etc., to adapt to different heat exchange conditions and fluid flow characteristics. The spacing between the fins also needs to be reasonably designed according to the size of the heat exchange tube 300 to achieve efficient heat exchange.

[0072] It is understandable that the heat exchange tube 300 can be a bellows. In an optional embodiment, the inner and outer walls of the bellows are provided with convex structures and concave structures to form a first convex portion 301, a first concave portion 302, a second convex portion 303 and a second concave portion 304. The convex and concave structures on the inner and outer walls of the bellows can increase the contact area between the water flow and the inner and outer walls of the pipe, forming more heat exchange surfaces, thereby achieving efficient heat transfer. This design utilizes the structural characteristics of the bellows itself, does not require additional processing steps, reduces production costs and processing difficulty, and the bellows has good elasticity and pressure resistance, can adapt to various complex working environments, and maintain stable heat exchange performance.

[0073] According to one embodiment of the present invention, referring to Figure 2 and Figure 4 As shown, the heater 200 is arranged corresponding to the bottom of the liquid storage space 110 , the water inlet end of the heat exchange tube 300 is arranged corresponding to the bottom of the liquid storage space 110 , and the water outlet end of the heat exchange tube 300 is arranged corresponding to the top of the liquid storage space 110 .

[0074] It can be understood that in this embodiment, since the heater 200 is located at the bottom, the liquid in the liquid storage space 110 will produce natural convection after heating, the hotter liquid rises, and the colder liquid sinks, forming a circulating flow. This natural convection helps to distribute the heat more evenly throughout the liquid storage space 110. The heater 200 at the bottom can quickly heat the bottom liquid and transfer the heat to the entire liquid storage space 110 through natural convection, so that the liquid in the liquid storage space 110 can be heated to the set temperature more quickly.

[0075] In an optional embodiment, the water inlet end of the heat exchange tube 300 is arranged corresponding to the bottom of the liquid storage space 110 , and the water outlet end of the heat exchange tube 300 is arranged corresponding to the top of the liquid storage space 110 .

[0076] The water inlet of the heat exchange tube 300 is arranged at the bottom of the liquid storage space 110, and the water outlet is arranged corresponding to the top of the liquid storage space 110, which can ensure that the heat exchange tube 300 fully exchanges heat with the hot water in the liquid storage space 110. Since hot water rises, arranging the water outlet of the heat exchange tube 300 at the top of the liquid storage space 110 can ensure that the temperature of the outlet water is high. The top water outlet can also prevent the heated water from exchanging heat with the hot water with a lower temperature at the bottom of the liquid storage space 110, thereby avoiding lowering the outlet water temperature.

[0077] According to an embodiment of the present invention, the heat exchange tube 300 is a stainless steel tube.

[0078] Stainless steel has excellent corrosion resistance, especially in harsh environments such as high temperature, high pressure, strong acid and strong alkali, its corrosion resistance is more significant. This enables stainless steel pipes to maintain long-term stable operation under various complex working conditions, reducing equipment damage and maintenance costs caused by corrosion. And stainless steel has high mechanical properties such as hardness, ductility and strength. These characteristics enable stainless steel pipes to maintain good stability when subjected to complex working conditions such as high temperature and high pressure of water heaters, reducing failures caused by material deformation or rupture. Stainless steel materials are easy to process and shape, and heat exchange tubes 300 of different shapes and sizes can be customized according to actual needs.

[0079] According to one embodiment of the present invention, referring to Figure 1 and Figure 4 As shown, the side wall of the box body 100 is provided with an internal thread, the heater 200 is provided with a mounting seat 201, and the mounting seat 201 is provided with an external thread coupled with the internal thread, so that the mounting seat 201 is threadedly connected to the side wall of the box body 100.

[0080] It is understandable that, in this embodiment, the internal thread of the side wall of the housing 100 and the external thread design on the heater 200 mounting base 201 provide an efficient and stable connection method. Through the mutual coupling of the internal thread and the external thread, the heater 200 mounting base 201 can be quickly and easily installed. This connection method does not require the use of additional tools or complicated steps, greatly improving the efficiency of installation and replacement. This connection method is not easy to loosen or fall off, ensuring the stability and reliability of the heater 200 during use, and through the close fit of the internal thread and the external thread, it can effectively prevent the leakage of liquid in the liquid storage space 110, thereby improving the safety performance of the water heater.

[0081] According to one embodiment of the present invention, referring to Figure 2 As shown, the box body 100 is provided with an exhaust channel 120, and the exhaust channel 120 connects the space above the liquid surface in the liquid storage space 110 with the outside.

[0082] It is understandable that in the process of heating the liquid in the water tank, a conventional water heater will cause the liquid in the water tank to expand, thereby applying pressure to the water tank. For the safety performance of the equipment, expansion space is often reserved in the water tank, which limits the design of the water tank structure. For example, the cross-section of the water tank is usually designed to be circular. In this embodiment, the exhaust channel 120 is provided so that the space above the liquid surface in the liquid storage space 110 can be connected to the external atmosphere. This allows the expansion pressure of the liquid in the liquid storage space 110 to be discharged through the exhaust channel 120 when the liquid is heated, avoiding the need for the box body 100 to adopt a pressure-bearing structure design. A square or other shape can be adopted, which allows the box body 100 in this embodiment to be designed to be smaller in size, reducing the space occupied by the water heater.

[0083] An embodiment of a second aspect of the utility model provides a water heater, comprising a water tank of the water heater according to any one of the above embodiments.

[0084] It can be understood that if the water tank of the water heater has the beneficial effects of the above embodiments, then the water heater will correspondingly have the beneficial effects of the above embodiments. Its specific implementation method can refer to the above embodiments, and this application will not go into details.

[0085] Finally, it should be noted that the above implementation modes are only used to illustrate the present invention, rather than to limit the present invention. Although the present invention is described in detail with reference to the embodiments, a person skilled in the art should understand that various combinations, modifications or equivalent replacements of the technical solutions of the present invention do not deviate from the spirit and scope of the technical solutions of the present invention, and should be included in the protection scope of the present invention.

Claims

1. A water tank for a water heater, characterized in that: include: A box body is formed with a liquid storage space; A heater, disposed in the box body, to heat the liquid storage space; A heat exchange tube is arranged in the liquid storage space to exchange heat with the liquid storage space, and the inner wall of the heat exchange tube is formed with at least one of a first protrusion and a first recess.

2. The water tank of the water heater according to claim 1, characterized in that: The number of the first protrusions is plural, and the first protrusions are arranged at intervals along the extension direction of the heat exchange tube; And / or, there are multiple first recessed portions, and the multiple first recessed portions are arranged at intervals along the extension direction of the heat exchange tube.

3. The water tank of the water heater according to claim 2, characterized in that: The first protrusions and the first recesses are arranged alternately in sequence.

4. The water tank of the water heater according to claim 1, characterized in that: The first protrusion is annularly arranged on the inner wall of the heat exchange tube; and / or, The first recessed portion is annularly arranged on the inner wall of the heat exchange tube.

5. The water tank of the water heater according to claim 1, characterized in that: The heat exchange tube is provided with a plurality of second raised portions and second depressed portions spaced apart from each other along the extension direction of the heat exchange tube on the outside thereof; Alternatively, a plurality of heat exchange fins are disposed outside the heat exchange tube and are spaced apart along an extension direction of the heat exchange tube.

6. The water tank of the water heater according to claim 1, characterized in that: The heater is arranged at the bottom of the liquid storage space, the water inlet end of the heat exchange tube is arranged corresponding to the bottom of the liquid storage space, and the water outlet end of the heat exchange tube is arranged corresponding to the top of the liquid storage space.

7. The water tank of the water heater according to claim 1, characterized in that: The heat exchange tube is a stainless steel tube.

8. The water tank of the water heater according to any one of claims 1 to 7, characterized in that: The side wall of the box body is provided with an internal thread, the heater is provided with a mounting seat, and the mounting seat is provided with an external thread coupled with the internal thread, so that the mounting seat is threadedly connected to the side wall of the box body.

9. The water tank of the water heater according to any one of claims 1 to 7, characterized in that: The box body is provided with an exhaust passage, and the exhaust passage connects the space above the liquid level in the liquid storage space with the outside world.

10. A water heater, characterized in that: A water tank comprising the water heater according to any one of claims 1 to 9.

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