Inner container and electric water heater
Through the design and reinforcement of the arc-shaped tank body and the connecting part, the problem of the excessive length of the plastic tank is solved, an electric water heater with larger volume and higher stability is designed, and the risk of metal ion contamination is reduced.
Patent Information
- Application Number
- CN202410248885.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-05
- Publication Date
- 2025-09-05
AI Technical Summary
In the prior art, the length of the plastic inner tank is long, which increases the length of the entire electric water heater, reduces installation feasibility, and poses a risk of metal ion contamination.
A water storage space is formed by enclosing a first arc-shaped bladder and a second arc-shaped bladder through a connecting portion. The connecting portion is set to a smooth curved surface to increase the volume and reduce resistance. Reinforcements and glass fiber layers are used to enhance structural stability.
The inner tank volume is increased at the same length, the overall length of the machine is reduced, the risk of metal ion contamination is reduced, the flow efficiency and structural stability are improved, and the installation space is increased.
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Figure CN120593390A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of household appliances, in particular to an inner tank and an electric water heater. Background Art
[0002] Electric water heaters typically use enameled inner tanks, which are made of welded iron and then enameled. However, enamel has a highly porous structure, which can lead to a large amount of metal ions in the water inside the tank. Furthermore, magnesium rods are often used for corrosion protection, which can significantly increase the amount of magnesium and aluminum ions in the water inside the tank, potentially damaging human skin. To address this issue, current inner tanks are made of plastic.
[0003] However, because the plastic inner liner requires a thicker plastic to withstand the corresponding pressure, the inner liner of a plastic double liner is longer than that of an enamel double liner for the same volume (approximately 20% longer). Due to the length of the plastic inner liner, the overall length of the water heater will also increase accordingly. The increase in overall length will reduce the installation feasibility of the water heater. Summary of the Invention
[0004] The embodiments of the present invention aim to provide an inner tank and an electric water heater to solve the technical problem in the prior art that, under the same volume, the length of the inner tank in a plastic double tank is longer than that in an enamel double tank.
[0005] The embodiments of the present invention solve the technical problems by adopting the following technical solutions:
[0006] Provided is an inner container, comprising:
[0007] first arcuate gallbladder;
[0008] second arcuate gallbladder;
[0009] a first connecting portion, wherein one end of the first arc-shaped bile body and one end of the second arc-shaped bile body are connected via the first connecting portion;
[0010] a second connecting portion, wherein the other end of the first arc-shaped bile body and the other end of the second arc-shaped bile body are connected via the second connecting portion;
[0011] The first arc-shaped bile body, the first connecting part, the second arc-shaped bile body and the second connecting part together form a water storage space, the width of the connection structure formed by the first connecting part and the second connecting part is L, the diameter of the first arc-shaped bile body is R1, the diameter of the second arc-shaped bile body is R2, 0.5R1≤L≤0.9R1, 0.5R2≤L≤0.9R2.
[0012] In some embodiments, the side of the first connecting portion away from the second connecting portion is a smooth curved surface shape, the side of the second connecting portion away from the first connecting portion is a smooth curved surface shape, and the first connecting portion and the second connecting portion are symmetrically arranged relative to the radial direction of the first arc-shaped bile body, and the first arc-shaped bile body and the second arc-shaped bile body are smoothly connected through the first connecting portion and the second connecting portion.
[0013] In some embodiments, the cross-sectional shape of the first arc-shaped bile body is an arc;
[0014] The cross section of the second arc-shaped bile body is an arc shape.
[0015] In some embodiments, the first arc-shaped bile body and the second arc-shaped bile body are symmetrically arranged.
[0016] On the other hand, an electric water heater is also provided, comprising:
[0017] The liner described above;
[0018] A heating element is inserted into the first arc-shaped bile body and the second arc-shaped bile body respectively.
[0019] In some embodiments, a reinforcement member is further included, the reinforcement member including a fixing plate and a fixing member, and fixing holes are opened on the first connecting portion and the second connecting portion;
[0020] The shape of the fixing plate is adapted to the shape of the gallbladder body;
[0021] The fixing plates are arranged on both sides of the gallbladder body;
[0022] The fixing piece is passed through the fixing hole to fix the fixing plate and the inner container.
[0023] In some embodiments, a fixing rod is further provided on the fixing plate, and the position of the fixing rod corresponds to the position of the fixing hole.
[0024] In some embodiments, a through hole is formed on the fixing rod, and the fixing member is inserted into the fixing hole through the through hole.
[0025] In some embodiments, an installation box is further included, which is used to accommodate the inner tank, and a connecting port is opened on the installation box. The position of the connecting port corresponds to the position of the heating element, so as to expose the heating element to the outside of the installation box.
[0026] In some embodiments, the installation box includes a glass fiber layer and a resin layer, wherein the resin layer is coated on the glass fiber layer.
[0027] Compared to the prior art, in the inner tank and electric water heater provided in the embodiment of the present invention, the first connecting portion and the second connecting portion are both located between the first arc-shaped tank body and the second arc-shaped tank body, and the first connecting portion connects one end of the first arc-shaped tank body to one end of the second arc-shaped tank body, and the second connecting portion connects the other end of the first arc-shaped tank body to the other end of the second arc-shaped tank body, so that the first arc-shaped tank body, the second arc-shaped tank body, the first connecting portion and the second connecting portion together enclose a water storage space. By providing the first connecting portion and the second connecting portion between the first arc-shaped tank body and the second arc-shaped tank body, a space is added between the first arc-shaped tank body and the second arc-shaped tank body for storing water, so that the inner tank has a larger volume than the plastic inner tank when the length is the same. Therefore, when an inner tank of the same volume is required, the length of the inner tank of this embodiment can be smaller than that of the plastic inner tank, so that the length of the electric water heater is smaller and has more installation space. BRIEF DESCRIPTION OF THE DRAWINGS
[0028] One or more embodiments are exemplarily illustrated by pictures in the corresponding drawings. These exemplifications do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings are represented as similar elements. Unless otherwise stated, the figures in the drawings do not constitute proportional limitations.
[0029] Figure 1 This is a schematic diagram of an explosion of an electric water heater provided by one embodiment of the present invention;
[0030] Figure 2 is a side view of an inner container provided by one embodiment of the present invention;
[0031] Figure 3 is a schematic structural diagram of a reinforcement member provided by one embodiment of the present invention;
[0032] Figure 4 It is a schematic diagram of the assembly of the reinforcement member and the bladder body provided in one embodiment of the present invention.
[0033] Reference numerals:
[0034] 100. Inner tank; 10. First arc-shaped tank body; 20. Second arc-shaped tank body; 30. First connecting portion; 40. Second connecting portion; 41. Fixing hole; 200. Electric water heater; 50. Heating element; 60. Reinforcement member; 61. Fixing plate; 611. Fixing rod; 6111. Through hole; 62. Fixing member; 70. Installation box; 71. Connecting port. DETAILED DESCRIPTION
[0035] For ease of understanding of the present invention, the present invention will be described in more detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that when an element is described as "connected" to another element, it can be directly on another element, or there can be one or more centered elements therebetween. The orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "upper end", "lower end", "top" and "bottom" used in this specification is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention 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 present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.
[0036] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used in this specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.
[0037] In an embodiment of the present invention, the electric water heater can store water and heat the water through the inner tank.
[0038] The following combination Figures 1 to 4 , the inner tank and water purification equipment provided in the embodiments of the present application are described in detail through specific examples.
[0039] Please also refer to Figure 2 、 Figure 3 and Figure 4 . An inner liner 100 is provided in one embodiment of the present invention. The inner liner 100 includes a first arcuate bile body 10, a second arcuate bile body 20, a first connecting portion 30 and a second connecting portion 40. One end of the first connecting portion 30 is connected to the first arcuate bile body 10, and the other end is connected to the second arcuate bile body 20; one end of the second connecting portion 40 is connected to the second arcuate bile body 20, and the other end is connected to the second arcuate bile body 20; wherein, the first arcuate bile body 10, the first connecting portion 30, the second arcuate bile body 20 and the second connecting portion 40 jointly form a water storage space, the width of the connection structure formed by the first connecting portion 30 and the second connecting portion 40 is L, the diameter of the first arcuate bile body 10 is R1, the diameter of the second arcuate bile body 20 is R2, 0.5R1≤L≤0.9R1, 0.5R2≤L≤0.9R2.
[0040] In the prior art, the inner liner 100 is typically made of plastic to reduce the amount of metal ions (e.g., magnesium and aluminum ions) in the inner liner 100. However, because the plastic inner liner 100 can withstand relatively low pressures, the plastic thickness must be increased to withstand higher pressures. Given the same volume, the plastic inner liner 100 is longer than a metal inner liner 100, resulting in a longer overall length and reduced installation feasibility of the electric water heater 200.
[0041] In this embodiment, the cross-sectional shape of the first arc-shaped bile body 10 and the second arc-shaped bile body 20 are both arc-shaped, and the arc shape has an opening. The cross-sectional openings of the first arc-shaped bile body 10 and the second arc-shaped bile body 20 are arranged correspondingly, so that the opening of the first arc-shaped bile body 10 and the opening of the second arc-shaped bile body 20 can be arranged correspondingly, which is convenient for subsequent connection through the first connecting part 30 and the second connecting part 40.
[0042] In this embodiment, the first connecting portion 30 and the second connecting portion 40 are both located between the first curved duct 10 and the second curved duct 20. The first connecting portion 30 connects one end of the first curved duct 10 to one end of the second curved duct 20, and the second connecting portion 40 connects the other end of the first curved duct 10 to the other end of the second curved duct 20. Thus, the first curved duct 10, the second curved duct 20, the first connecting portion 30, and the second connecting portion 40 collectively enclose a water storage space. By providing the first connecting portion 30 and the second connecting portion 40 between the first curved duct 10 and the second curved duct 20, space is added between the first curved duct 10 and the second curved duct 20 for storing water. This allows the inner duct 100 to have a larger volume than a plastic inner duct 100 while maintaining the same length. Therefore, when an inner tank 100 of the same volume is required, the length of the inner tank 100 of this embodiment can be smaller than that of the plastic inner tank 100, so that the length of the electric water heater 200 is smaller and has more installation space.
[0043] Specifically, the size of the water storage space of the inner container 100 is related to the length of the first connecting portion 30 and the second connecting portion 40. The longer the length of the first connecting portion 30 and the second connecting portion 40, the greater the volume, and the higher the height of the inner container 100.
[0044] More specifically, the width between the first connecting portion 30 and the second connecting portion 40 is L, the diameter of the first curved bladder body 10 is R1, and the diameter of the second curved bladder body 20 is R2. The following rules define the width of the bladder body: 0.5R1≤L≤0.9R1, and 0.5R2≤L≤0.9R2. This allows for a larger water storage space within the bladder body while also preventing the width of the first connecting portion 30 and the second connecting portion from being too large, which could compromise installation feasibility.
[0045] In some other examples, the material used for the inner liner 100 in this embodiment can be plastic material, so as to reduce the metal ions present in the water in the inner liner 100 while the inner liner 100 has a larger volume at the same length.
[0046] In some embodiments, the side of the first connection portion 30 away from the second connection portion 40 is a smooth curved surface shape, the side of the second connection portion 40 away from the first connection portion 30 is a smooth curved surface shape, and the first connection portion 30 and the second connection portion 40 are symmetrically arranged relative to the radial direction of the first arc-shaped bile body 10, and the first arc-shaped bile body 10 and the second arc-shaped bile body 20 are smoothly connected through the first connection portion 30 and the second connection portion 40.
[0047] By configuring the side surfaces of the first connection portion 30 and the second connection portion 40 as smooth curved surfaces, the resistance of water flow on the first connection portion 30 and the second connection portion 40 can be reduced. Compared with sharp-angled or angular connections, configuring the first connection portion 30 and the second connection portion 40 as smooth curved surfaces can allow water to flow more smoothly, reduce turbulence and resistance of the water flow, and thus improve the flow efficiency of water in the inner liner 100. In addition, configuring the first connection portion 30 and the second connection portion 40 as smooth curved surfaces can also increase the structural strength of the inner liner 100. Compared with sharp-angled or angular connections, configuring the first connection portion 30 and the second connection portion 40 as smooth curved surfaces can reduce stress concentration, evenly distribute external pressure, improve the overall stability and bearing capacity of the inner liner 100, and reduce the risk of deformation and rupture of the inner liner 100.
[0048] In some embodiments, the cross-section of the first arc-shaped bile body 10 is an arc; the cross-section of the second arc-shaped bile body 20 is an arc.
[0049] Setting the cross-section of the first arc-shaped bladder body 10 and the second arc-shaped bladder body 20 to be an arc shape can increase the force balance and stability of the inner bladder 100. Specifically, the stress concentration in the first arc-shaped bladder body 10 and the second arc-shaped bladder body 20 can be reduced. Compared with the straight line design, the arc-shaped bladder body can disperse the force to a larger area when subjected to water pressure, reducing the stress concentration in certain local areas, thereby improving the bearing capacity and stability of the first arc-shaped bladder body 10 and the second arc-shaped bladder body 20. In addition, the structural strength of the first arc-shaped bladder body 10 and the second arc-shaped bladder body 20 can also be enhanced. By designing the shape of the first arc-shaped bladder body 10 and the second arc-shaped bladder body 20 to be an arc, the first arc-shaped bladder body 10 and the second arc-shaped bladder body 20 can better withstand the effects of internal and external pressure when subjected to force, reducing the risk of deformation and deformation, and thus extending the service life of the bladder body.
[0050] In some embodiments, the first arc-shaped bile body 10 and the second arc-shaped bile body 20 are symmetrically arranged. By symmetrically arranging the first arc-shaped bile body 10 and the second arc-shaped bile body 20, the lengths of the first connecting portion 30 and the second connecting portion 40 between the first arc-shaped bile body 10 and the second arc-shaped bile body 20 are equal, and the positions of the first connecting portion 30 and the second connecting portion 40 can be symmetrically arranged.
[0051] See also Figure 1 Another embodiment of the present invention provides an electric water heater 200, comprising the above inner tank 100 and a heating element 50. The heating element 50 is inserted into the first arc-shaped tank body 10 and the second arc-shaped tank body 20, respectively.
[0052] The inner liner 100 includes a first curved liner body 10, a second curved liner body 20, a first connecting portion 30, and a second connecting portion 40. Two heating elements 50 are respectively inserted into the first curved liner body 10 and the second curved liner body 20 to heat the water in the first curved liner body 10 and the second curved liner body 20. Specifically, the first curved liner body 10 and the second curved liner body 20 are interconnected via the first connecting portion 30 and the second connecting portion 40. The provision of the first curved liner body 10 and the second curved liner body 20 can improve the stability of the hot water supply. For example, when the hot water in the first curved liner body 10 is consumed, the second curved liner body 20 can continue to supply hot water, ensuring that the user has continuous access to hot water. This reduces the time and inconvenience of waiting for the heating to be restarted due to the depletion of hot water.
[0053] In other examples, the configuration of a first curved body 10 and a second curved body 20 can also achieve multi-temperature zone control. The power of the heating element 50 located in the first curved body 10 differs from that of the heating element 50 located in the second curved body 20, enabling independent control of the heating temperature and operating mode of the first and second curved bodies 10, 20. This allows for more flexible control of hot water supply and reduces energy waste. For example, the first curved body 10 can be set to high-temperature heating to meet rapid heating requirements during high hot water demand, while the second curved body 20 can be set to low-temperature heating to meet energy-saving operation during lower hot water demand.
[0054] In this embodiment, the first connecting portion 30 and the second connecting portion 40 are both located between the first curved duct 10 and the second curved duct 20. The first connecting portion 30 connects one end of the first curved duct 10 to one end of the second curved duct 20, and the second connecting portion 40 connects the other end of the first curved duct 10 to the other end of the second curved duct 20. Thus, the first curved duct 10, the second curved duct 20, the first connecting portion 30, and the second connecting portion 40 collectively enclose a water storage space. By providing the first connecting portion 30 and the second connecting portion 40 between the first curved duct 10 and the second curved duct 20, space is added between the first curved duct 10 and the second curved duct 20 for storing water. This allows the inner duct 100 to have a larger volume than a plastic inner duct 100 while maintaining the same length. Therefore, when an inner tank 100 of the same volume is required, the length of the inner tank 100 of this embodiment can be smaller than that of the plastic inner tank 100, so that the length of the electric water heater 200 is smaller and has more installation space.
[0055] In some embodiments, the electric water heater 200 also includes a reinforcement 60, which includes a fixing plate 61 and a fixing member 62. A fixing hole 41 is provided on the first connecting portion 30 and the second connecting portion 40; the shape of the fixing plate 61 is adapted to the shape of the tank body; the fixing plate 61 is arranged on both sides of the tank body; the fixing member 62 is passed through the fixing hole 41 to fix the fixing plate 61 and the inner tank 100.
[0056] Specifically, the setting of the fixing plate 61 can increase the structural stability of the first arc-shaped bladder body 10 and the second arc-shaped bladder body 20, so that they can better withstand internal and external pressures, thereby increasing the rigidity and strength of the entire inner bladder 100, reducing the deformation and extrusion of the inner bladder 100 when under pressure, and improving the stability and durability of the inner bladder 100.
[0057] Specifically, the fixing plates 61 are arranged on both sides of the inner liner 100, so that the area of the inner liner 100 that bears pressure is more uniform, thereby improving the overall pressure-bearing capacity of the inner liner 100, enabling it to cope with high pressure and large capacity requirements.
[0058] In some more specific examples, the shape of the fixing plate 61 is adapted to the shape of the bile body. The fixing plate 61 includes a first portion, a second portion, and a third portion, and the first and third portions are connected by the third portion. The first portion is recessed inwardly toward the side of the first curved bile body 10 to adapt to the shape of the first curved bile body 10; the second portion protrudes outwardly toward the side of the first connecting portion 30 or the second connecting portion 40 to adapt to the shape of the first connecting portion 30 or the second connecting portion 40; and the third portion is recessed inwardly toward the side of the second curved bile body 20 to adapt to the shape of the second curved bile body 20.
[0059] After the fixing plates 61 are respectively attached to both sides of the inner container 100 , the fixing members 62 can be passed through the fixing plates 61 and the fixing holes 41 , thereby fixing the fixing plates 61 to the inner container 100 .
[0060] The number of the fixing holes 41 on the first connecting portion 30 and the number of the fixing holes 41 on the second connecting portion 40 are equal and correspond to each other, so that the fixing member 62 can pass through the fixing holes 41 on the first connecting portion 30 and the fixing holes 41 on the second connecting portion 40 in sequence.
[0061] It should be noted that the fixing member 62 can be a screw or a bolt.
[0062] In some embodiments, the fixing plate 61 is further provided with fixing rods 611, and the positions of the fixing rods 611 correspond to the positions of the fixing holes 41. When the fixing plate 61 is fitted with the gallbladder body, the fixing rods 611 can be inserted into the fixing holes 41, thereby fixing the fixing plate 61 to both sides of the gallbladder body.
[0063] In some embodiments, the fixing rod 611 is provided with a through-hole 6111, through which the fixing member 62 is inserted into the fixing hole 41. After the fixing plate 61 is inserted into the fixing hole 41 via the fixing rod 611, the fixing member 62 can be inserted into the through-hole 6111 on the fixing rod 611, and then sequentially passed through the fixing holes 41 on the first connecting portion 30 and the second connecting portion 40, thereby securing the fixing plate 61 to both sides of the inner liner 100. With this arrangement, the fixing rod 611 can be first inserted into the fixing holes 41 to preliminarily position the fixing plate 61 on both sides of the liner body, facilitating subsequent securing of the fixing plate 61 to the liner body via the fixing member 62.
[0064] In some embodiments, the electric water heater 200 further includes an installation box 70 for accommodating the inner tank 100 , and a connecting port 71 is provided on the installation box 70 , the position of the connecting port 71 corresponds to the position of the heating element 50 , and is used to expose the heating element 50 to the installation box 70 .
[0065] In this embodiment, the inner tank 100 can be accommodated in the installation box 70, and a connecting port 71 is opened on the installation box 70. The heating element 50 can be exposed to the installation box 70 through the connecting port 71, so that the heating element 50 can be connected to an external power supply.
[0066] Fiberglass is a lightweight, high-strength material. The fiberglass layer in installation box 70 provides excellent structural strength and durability. It withstands external pressure, resists shock and chemical corrosion, and also provides thermal insulation and heat preservation properties. The resin layer is coated over the fiberglass layer. The resin has excellent adhesion and plasticity, tightly wrapping the fiberglass layer and forming a smooth outer surface during processing. This outer surface enhances the aesthetics of installation box 70 while also providing additional waterproofing, corrosion resistance, and insulation properties.
[0067] In this embodiment, the combination of the fiberglass layer and the resin layer forms a strong installation box 70 structure, providing sufficient load-bearing capacity and pressure resistance, so that the installation box 70 can withstand internal and external pressure changes and maintain structural stability and safety.
[0068] And, the glass fiber layer also has good heat preservation and thermal insulation performance. By being provided with the glass fiber layer on the installation box 70, the loss of heat can be reduced, the temperature holding time of the hot water can be improved, thereby saving energy and improving the use efficiency of the hot water.
[0069] It should be noted that the water purification equipment provided in the embodiment of the present invention only shows the part related to the technical problem to be solved by the embodiment of the present invention. It can be understood that the electric water heater provided in the embodiment of the present invention also includes other structures for realizing the functions of the electric water heater, including but not limited to a shower mechanism for discharging water, a control mainboard for controlling circuit circulation, etc.
[0070] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them. Under the concept of the present invention, the technical features in the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the present invention as described above. For the sake of simplicity, they are not provided in detail. Although the present invention has been described in detail with reference to the above embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions described in the above embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.
Claims
1. A liner (100), characterized in that: include: First arcuate bile corpus (10); Second arcuate bile corpus (20); a first connecting portion (30), wherein one end of the first arc-shaped bile body (10) and one end of the second arc-shaped bile body (20) are connected via the first connecting portion (30); a second connecting portion (40), wherein the other end of the first arc-shaped bile body (10) and the other end of the second arc-shaped bile body (20) are connected via the second connecting portion (40); The first arc-shaped bile body (10), the first connecting portion (30), the second arc-shaped bile body (20) and the second connecting portion (40) together form a water storage space, the width of the connection structure formed by the first connecting portion (30) and the second connecting portion (40) is L, the diameter of the first arc-shaped bile body (10) is R1, the diameter of the second arc-shaped bile body (20) is R2, 0.5R1≤L≤0.9R1, 0.5R2≤L≤0.9R2.
2. The inner container (100) according to claim 1, characterized in that: The side surface of the first connecting portion (30) away from the second connecting portion (40) is in the shape of a smooth curved surface, the side surface of the second connecting portion (40) away from the first connecting portion (30) is in the shape of a smooth curved surface, and the first connecting portion (30) and the second connecting portion (40) are symmetrically arranged relative to the radial direction of the first arc-shaped bile body (10), and the first arc-shaped bile body (10) and the second arc-shaped bile body (20) are smoothly connected via the first connecting portion (30) and the second connecting portion (40).
3. The inner container (100) according to claim 1, characterized in that: The cross-section of the first arc-shaped bile body (10) is an arc; The cross section of the second arc-shaped bile body (20) is arc-shaped.
4. The inner container (100) according to claim 1, characterized in that The first arc-shaped bile body (10) and the second arc-shaped bile body (20) are symmetrically arranged.
5. An electric water heater (200), characterized in that: include: The inner container (100) according to any one of claims 1 to 4; A heating element (50) is inserted into the first arc-shaped bile body (10) and the second arc-shaped bile body (20) respectively.
6. The electric water heater (200) according to claim 5, characterized in that: It also includes a reinforcement member (60), the reinforcement member (60) including a fixing plate (61) and a fixing member (62), and the first connecting portion (30) and the second connecting portion (40) are provided with fixing holes (41); The shape of the fixing plate (61) is adapted to the shape of the gallbladder body; The fixing plates (61) are arranged on both sides of the gallbladder body; The fixing member (62) is passed through the fixing hole (41) to fix the fixing plate (61) and the inner container.
7. The electric water heater (200) according to claim 6, characterized in that: A fixing rod (611) is also provided on the fixing plate (61), and the position of the fixing rod (611) corresponds to the position of the fixing hole (41).
8. The electric water heater (200) according to claim 7, characterized in that: The fixing rod (611) is provided with a through hole (6111), and the fixing member (62) is inserted into the fixing hole (41) through the through hole (6111).
9. The electric water heater (200) according to claim 5, characterized in that: The invention also includes an installation box (70), wherein the installation box (70) is used to accommodate the inner container (100), and a communication port (71) is provided on the installation box (70), wherein the position of the communication port (71) corresponds to the position of the heating element (50), and is used to expose the heating element (50) to the outside of the installation box (70).
10. The electric water heater (200) according to claim 9, characterized in that: The installation box (70) comprises a glass fiber layer and a resin layer, wherein the resin layer is coated on the glass fiber layer.