Electric water heater

Abstract

This utility model relates to the technical field of hot water supply equipment, and discloses an electric water heater, including a shell, a warning light, and a warning light connecting wire. The warning light is installed on the side wall of the shell, and the side wall of the shell also has a through-hole for wiring. The warning light connecting wire passes through the through-hole and connects to the warning light. An anti-pull positioning component is provided on the warning light connecting wire, at least part of which is located inside the shell and stops inside the through-hole. In this utility model, the limiting function of the anti-pull positioning component can significantly improve the tensile strength of the warning light, while reducing the number of parts and assembly steps, lowering manufacturing and labor costs, and improving production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of hot water supply equipment technology, and in particular to an electric water heater. Background Technology

[0002] In related technologies, most electric water heaters on the market are equipped with warning lights. The warning lights are installed on the side wall of the water heater casing. The warning lights are connected to the controller on the outside through a warning light connection wire that passes through the casing. However, the warning light connection wire located inside the water heater usually needs to be fixed to improve the tensile strength of the warning light connection wire, so as to avoid damage to the warning light caused by external pulling of the warning light connection wire, which would affect the normal use of the warning light.

[0003] To secure the internal warning light wiring of an electric water heater, existing electric water heaters typically require the installation of a wire clamping plate assembly on the inner tank. This assembly, along with components such as the heating element, is mounted on the flange of the inner tank. However, the installation space for the wire clamping plate assembly is easily affected by the heating element and other components, making installation inconvenient. Utility Model Content

[0004] The technical problem solved by this utility model is to provide an electric water heater that ensures the tensile strength of the warning light connection wire and is easy to install.

[0005] The above-mentioned technical problems are solved by the following technical solutions:

[0006] An electric water heater includes a casing, a warning light, and a warning light connection wire;

[0007] The warning light is mounted on the side wall of the housing, and the side wall of the housing is also provided with a through wire hole, through which the warning light connecting wire passes and is connected to the warning light;

[0008] The warning light connection line is provided with an anti-pull positioning component, at least part of which is located inside the housing and stops inside the wire hole.

[0009] Compared with the prior art, the electric water heater described in this utility model has the following beneficial effects:

[0010] This invention provides an anti-pull positioning component on the warning light connection line. The anti-pull positioning component is locked inside the wire hole, thus forming a physical limit. Therefore, the limiting effect of the anti-pull positioning component can significantly improve the tensile strength of the warning light connection line, thereby effectively reducing the damage to the warning light caused by external pulling.

[0011] The anti-pull positioning component of this utility model can be directly installed on the warning light connection line without being fixed to the flange of the inner liner, which can reduce the influence of other components and thus facilitate installation.

[0012] In one embodiment, the anti-pull positioning member is a positioning post, which is located inside the housing, and the diameter of the positioning post is larger than the diameter of the wire hole;

[0013] The side wall of the housing is also provided with a through mounting hole, which is spaced apart from the wire hole; the warning light is installed in the mounting hole, and the length of the warning light connecting line between the warning light and the positioning post is greater than the distance between the mounting hole and the wire hole.

[0014] In one embodiment, the positioning post is integrally formed on the outside of the warning light connection line.

[0015] In one embodiment, the positioning post is coaxially arranged with the warning light connection line.

[0016] In one embodiment, a wire sleeve is inserted through the wire hole of the housing, the warning light connecting wire passes through the wire sleeve and is connected to the warning light, and the diameter of the positioning post is larger than the diameter of the wire sleeve.

[0017] In one embodiment, a power cord is also included, which passes through the wire hole.

[0018] In one embodiment, the device further includes an inner liner, which includes an inner liner body and a pressure plate mounted on the end of the inner liner body by a bolt assembly, wherein a pressure piece for fixing the wires inside the outer casing is also clamped between the bolt assembly and the pressure plate.

[0019] In one embodiment, one end of the pressure plate is sleeved on a bolt and pressed tightly onto the pressure plate by a nut, and the other end of the pressure plate is provided with a pressure plate support. The pressure plate support is perpendicular to the pressure plate and extends into the central hole of the pressure plate and abuts against the inner wall of the central hole.

[0020] In one embodiment, the pressure plate and the pressure plate support are integrally formed.

[0021] In one embodiment, the warning light is mounted in the mounting hole via a sealing ring. Attached Figure Description

[0022] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0023] Figure 1 This is one of the structural schematic diagrams of an electric water heater according to an embodiment of the present utility model;

[0024] Figure 2 for Figure 1 The diagram shown is an enlarged view of a partial structure of an electric water heater.

[0025] Figure 3 This is a schematic diagram of the structure of a warning light assembly for an electric water heater according to an embodiment of the present utility model;

[0026] Figure 4 This is a partial structural diagram of the inner tank of an electric water heater according to an embodiment of the present utility model;

[0027] Figure 5 This is a schematic diagram of the structure of the pressure plate of an electric water heater according to an embodiment of the present utility model.

[0028] Explanation of reference numerals in the attached figures:

[0029] 1. Outer shell; 11. Wire hole; 12. Mounting hole; 2. Inner liner; 21. Inner liner body; 22. Pressure plate; 23. Nut; 24. Bolt; 25. Center hole; 3. Warning light; 4. Warning light connection wire; 5. Anti-pull positioning component; 6. Wire sleeve; 7. Pressure plate; 71. Pressure plate support ear; 8. Power cord. Detailed Implementation

[0030] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0031] In the description of this application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0032] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0033] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0034] The electric water heater provided by this utility model is described below with reference to the accompanying drawings.

[0035] like Figures 1 to 5 As shown, an electric water heater according to an embodiment of the present utility model includes a housing 1, a warning light 3, and a warning light connecting wire 4.

[0036] The warning light 3 is installed on the side wall of the housing 1. The side wall of the housing 1 is also provided with a through wire hole 11. The warning light connecting wire 4 passes through the wire hole 11 and is connected to the warning light 3.

[0037] The warning light connection wire 4 is provided with an anti-pull positioning component 5, at least part of which is located inside the housing 1 and is blocked inside the wire hole 11.

[0038] The electric water heater according to an embodiment of this utility model has the following specific structure:

[0039] The outer casing 1 serves as the external protective shell for the electric water heater, housing internal components and providing safety protection. A through-hole 11 for wiring 11 is provided on the side wall of the outer casing 1, allowing the warning light connection wire 4 to pass through and establish an electrical connection. The warning light 3 is mounted on the side wall of the outer casing 1, for example, in a location easily visible to the user. The function of the warning light 3 is to emit a light signal when the electric water heater malfunctions (such as overheating or water shortage), alerting the user. The warning light connection wire 4 connects the warning light 3 to the power supply or control circuit; this connection wire must pass through the wiring hole 11 on the side wall of the outer casing 1 to connect to the warning light 3 and form an electrical connection.

[0040] The anti-pull positioning component 5 is installed on the warning light connecting wire 4, at least partially located inside the housing 1, and fixed to the inside of the wire hole 11 by a stop structure. The function of the anti-pull positioning component 5 is to restrict the movement of the warning light connecting wire 4, effectively preventing it from falling off or being damaged due to external pulling. It can be understood that the wire hole 11 provides a passage for the warning light connecting wire 4, while also providing a stop space for the anti-pull positioning component 5. The warning light 3 is located on the side wall of the housing 1 for easy observation by the user, while the concealed design of the anti-pull positioning component 5 does not affect the cleanliness of the appearance.

[0041] Based on the above structure, the basic working principle of the electric water heater of this utility model is as follows: At least a portion of the anti-pull positioning member 5 is located inside the outer casing 1 and forms a stop contact with the inner side of the wire hole 11. When the warning light connecting wire 4 is pulled by an external force, the anti-pull positioning member 5 will directly contact the stop structure such as the inner wall of the wire hole 11 or the inner wall of the outer casing 1, thereby preventing the warning light connecting wire 4 from moving outward. At the same time, the anti-pull positioning member 5 can distribute the external pulling force to the structure of the outer casing 1 through its own structural design, such as protrusions, grooves, or elastic deformation structures, rather than directly transmitting it to the warning light connecting wire 4 or the body of the warning light 3, thereby ensuring the normal operation of the warning light 3.

[0042] During installation and wiring, if external force is applied directly to the warning light connecting wire 4, the anti-pull positioning component 5 first contacts the inner wall of the outer casing 1, thus forming a physical stop. This allows the external force to be transmitted to the outer casing 1 through the anti-pull positioning component 5, rather than directly acting on the warning light connecting wire 4 or the warning light 3 body, thereby ensuring the normal operation of the warning light 3. It can be understood that the advantage of this warning light 3 structure lies in its ease of installation while also meeting the requirements of a 100N tensile force test.

[0043] In summary, this utility model provides an anti-pull positioning component 5 on the warning light connection line. The anti-pull positioning component 5 is locked inside the wire hole 11, thereby forming a physical limit. Therefore, the limiting effect of the anti-pull positioning component 5 can significantly improve the tensile strength of the warning light connection line 4, and thus effectively reduce the damage to the warning light 3 caused by external pulling.

[0044] The anti-pull positioning component 5 of this utility model is directly installed on the warning light connection line 4, without needing to be fixed to the flange of the inner liner 2, which can reduce the influence of other components and thus facilitate installation.

[0045] like Figure 2 and Figure 3 As shown, according to some embodiments of the present invention, the anti-pull positioning member 5 is a positioning post, which is located inside the outer shell 1, and the diameter of the positioning post is larger than the diameter of the wire hole 11.

[0046] It is understandable that because the diameter of the positioning post is larger than that of the wire hole 11, when the connecting wire is subjected to external tension, it will directly abut against the inner edge of the wire hole 11, thereby preventing the connecting wire from being pulled out or moved.

[0047] It should be noted that, unlike traditional methods such as bonding, snap-fit, and screw fixing, this solution relies on the geometric dimensions of the positioning post itself to match the wire hole 11, thereby achieving a stable limiting effect, simplifying the structure and improving assembly efficiency.

[0048] In this way, by setting a positioning post with a diameter larger than the wire hole 11 on the warning light connection line 4, the present invention achieves physical limit protection for the connection line, solves the problem of connection failure caused by pulling in the traditional structure, and has a simple structure, is safe and reliable, and is easy to manufacture.

[0049] like Figure 2 and Figure 3 As shown, the side wall of the outer casing 1 is further provided with a through mounting hole 12, which is spaced apart from the wire hole 11; the warning light 3 is installed in the mounting hole 12, and the length of the warning light connecting line 4 between the warning light 3 and the positioning post is greater than the distance between the mounting hole 12 and the wire hole 11.

[0050] In this embodiment, the mounting hole 12 is used to install the warning light 3, and its shape and size match the mounting structure of the warning light 3, thereby ensuring the assembly stability of the warning light 3. Specifically, the warning light 3 is inserted into the mounting hole 12 from the outside and fixed to the housing 1.

[0051] It is understood that the positioning post and the warning light 3 are connected by the warning light connecting wire 4. The length of the warning light connecting wire 4 needs to be greater than the distance between the mounting hole 12 and the wire hole 11. In this way, since the length of the warning light connecting wire 4 is greater than the distance between the two holes, when an external force is applied to the warning light connecting wire 4, due to the locking effect of the positioning post and the length setting of the warning light connecting wire 4, the warning light connecting wire 4 located inside the outer casing 1 will not pull on the warning light 3, thereby ensuring the stable operation of the warning light 3 and effectively preventing the warning light 3 from being torn off due to external force.

[0052] In some specific embodiments of this utility model, the positioning post is integrally formed on the outside of the warning light connecting wire 4. That is, the positioning post is not an independent part, but is integrally formed with the outer insulating sheath of the warning light connecting wire 4 or its additional structure. For example, when manufacturing the warning light connecting wire 4, a ring-shaped or columnar protrusion structure can be directly formed on the outside as a positioning post through mold design.

[0053] It is understandable that, due to the one-piece molding manufacturing process, the positioning post is usually made of the same material as the outer layer of the warning light connecting wire 4, such as rubber, silicone or thermoplastic elastomer, which are elastic structures, and thus have a certain degree of elasticity and flexibility, so that it can easily pass through the wire hole 11 and spring back to fix during the assembly process.

[0054] In this way, the one-piece molded positioning post can effectively prevent the connecting wires from coming loose due to external pulling, thereby avoiding circuit interruptions or electrical faults and significantly improving the safety and operational stability of the electric water heater. At the same time, the above structure reduces the number of parts by eliminating the additional fasteners or installation steps required in traditional structures, thus reducing manufacturing costs and assembly difficulty.

[0055] like Figure 2 and Figure 3 As shown, in some specific embodiments of this utility model, the positioning post and the warning light connecting line 4 are coaxially arranged.

[0056] It should be explained that coaxial setting means that the central axis of the positioning post coincides or is substantially coincident with the central axis of the warning light connection line 4, that is, the positioning posts are symmetrically distributed around the connection line, and their geometric center is consistent with the extension direction of the connection line.

[0057] It is understandable that, since the positioning post and the connecting line are arranged coaxially, when the connecting line is subjected to external tension, the tension will be evenly distributed on the entire annular contact surface of the positioning post, thereby avoiding local stress concentration and improving the pull-out resistance.

[0058] like Figures 1 to 2 As shown, according to some embodiments of the present invention, a wire sleeve 6 is inserted into the wire hole 11 of the outer casing 1, the warning light connecting wire 4 passes through the wire sleeve 6 and is connected to the warning light 3, and the diameter of the positioning post is larger than the hole diameter of the wire sleeve 6.

[0059] In this embodiment, a wire sleeve 6 is installed inside the wire hole 11 on the side wall of the housing 1. The wire sleeve 6 is typically made of materials such as rubber, silicone, or flexible plastic. The function of the wire sleeve 6 is to protect the connecting wire from wear, improve sealing, and prevent dust or moisture from entering the housing.

[0060] The warning light connecting wire 4 extends from the warning light 3 outside the housing 1, passes through the wire sleeve 6 and the wire hole 11, enters the housing 1, and connects to the control circuit or other power modules. A positioning post is located on the warning light connecting wire 4, inside the housing 1. The positioning post is a ring-shaped protrusion with a diameter larger than the inner diameter of the wire sleeve 6, thus preventing it from passing through the wire sleeve 6 and forcing it to remain inside the wire sleeve 6.

[0061] It is understandable that the connecting wire can pass freely through the wire sleeve 6, but the positioning post, due to its larger diameter, is restricted inside the sleeve, thus forming a physical stop structure. In this way, when external pulling force is applied to the connecting wire, the positioning post will press against the wire sleeve 6, preventing the connecting wire from being pulled out further.

[0062] The wire sleeve 6, acting as an intermediate transition component, buffers the friction between the connecting wire and the metal opening, thereby reducing insulation wear caused by pulling. Simultaneously, the wire sleeve 6 also provides a sealing and protective function, enhancing the water-proof and dust-proof performance of the electric water heater.

[0063] like Figures 1 to 2As shown, according to some embodiments of the present invention, the electric water heater also includes a power cord 8, which passes through the wire hole 11.

[0064] Furthermore, the electric water heater also includes an inner tank 2, which is installed inside the outer casing 1, and the power cord 8 passes through the wire hole 11 and is connected to the inner tank 2.

[0065] It is understood that the inner tank 2 is used to store and heat hot water, and it is usually made of metal with good pressure resistance and corrosion resistance. The inner tank 2 is fixedly installed inside the outer shell 1, forming the main functional module of the electric water heater. The power cord 8 is used to provide power to the water heater, with one end connected to the external power system and the other end connected to the heating element in the inner tank 2.

[0066] Specifically, the power cord 8 needs to pass through the outer casing 1 into the internal space to supply power to the inner liner 2. For this purpose, a through-hole 11 is provided on the side wall of the outer casing 1 for the power cord 8 to pass through. After passing through the through-hole 11, the power cord 8 reliably connects to the electrical interface on the inner liner 2, ensuring the normal operation of the heating function. It should be noted that the through-hole 11 on the outer casing 1 can be used not only for the warning light connection wire 4, but also for other necessary lines such as the power cord 8.

[0067] Furthermore, the power cord 8 passes through the wire sleeve 6 and connects to the inner liner 2. Specifically, the power cord 8 is introduced from the outside, passes through the wire sleeve 6 and the wire hole 11 in sequence, and enters the internal space of the outer shell 1; after exiting, the power cord 8 is electrically connected to the heating element in the inner liner 2.

[0068] In this embodiment, the power cord 8 can freely pass through the central through hole of the wire sleeve 6. The wire sleeve 6 fits snugly against the outer insulating sheath of the power cord 8, forming a good sealing and cushioning effect. Thus, the presence of the wire sleeve 6 prevents the power cord 8 from directly contacting the metal casing, thereby reducing insulation wear.

[0069] In some embodiments, the power cord 8 may also be provided with an anti-pull-out structure, the diameter of which is larger than the internal aperture of the wire sleeve 6 and located on one side inside the outer casing 1, so that the anti-pull-out structure can play a limiting role and prevent the power cord 8 from being accidentally pulled out.

[0070] like Figure 4 and Figure 5 As shown, according to some embodiments of the present invention, the inner liner 2 includes an inner liner body 21 and a pressure plate 22 installed at the end of the inner liner body 21 by a bolt assembly. A pressure piece 7 for fixing the wires inside the outer shell 1 is also sandwiched between the bolt assembly and the pressure plate 22.

[0071] In this embodiment, a pressure plate 22 is installed at one end of the inner liner body 21 and is used to press and fix certain mounting parts or connecting components. For example, the pressure plate 22 can be used for components such as temperature sensors. The pressure plate 22 is connected to and locked to the inner liner body 21 by a bolt assembly, wherein the bolt assembly typically includes standard fasteners such as bolts 24, nuts 23, and washers, which are used to firmly fix the pressure plate 22 to the inner liner body 21. A pressure plate 7 is sandwiched between the bolt assembly and the pressure plate 22. The main function of the pressure plate 7 is to fix the wires of components such as temperature sensors.

[0072] For example, the bolt assembly includes a nut 23 and a bolt 24. The bolt 24 passes through the bolt 24 hole on the pressure plate 22 and the bolt 24 hole on the inner liner body 21 in sequence. The nut 23 is fitted onto the bolt 24 and fixes the pressure plate 22 to the top of the inner liner 2.

[0073] A pressure plate 7 is also clamped between the nut 23 and the pressure plate 22. The pressure plate 7 is used to fix the wires inside the outer casing 1.

[0074] like Figure 5 As shown, the pressure plate 7 is further provided with a pressure plate fixing member, which is used to fix the position of the pressure plate 7 in the rotation direction of the nut 23.

[0075] In this embodiment, a pressing plate fixing component is added to the pressing plate 7. The pressing plate fixing component can be a protruding structure, a buckle, a limiting hole, or a flange, etc. This utility model does not impose any special restrictions here.

[0076] It is understandable that the main function of the fastener is to prevent the pressure plate 7 from rotating or shifting during the assembly process. For example, when the nut 23 is tightened, the torque generated by the threaded transmission may cause the pressure plate 7 to rotate together. The pressure plate fastener can effectively resist the above-mentioned rotational torque, thereby ensuring that the pressure plate 7 remains in a stable position when the nut 23 rotates and will not be misaligned due to force.

[0077] It should be noted that the core of this embodiment lies in the fact that by setting a pressure plate fixing component on the pressure plate 7, the problem of rotation or displacement of the pressure plate 7 that may occur during the tightening of the nut 23 is solved. Its working principle is as follows: When tightening the nut 23, the friction between the nut 23 and the pressure plate 7 may cause the pressure plate 7 to rotate with the nut 23. The pressure plate fixing component prevents the rotation of the pressure plate 7 by limiting the cooperation with the pressure plate 22 or the inner liner body 21, thereby ensuring that the pressure plate 7 is always in the predetermined clamping position and avoiding clamping failure due to misalignment.

[0078] like Figure 5As shown, in some specific embodiments, the pressure plate 22 has a through central hole 25, the rotation direction of the nut 23 is perpendicular to the central axis of the annular pressure plate 22, and the pressure plate fixing member is a downwardly extending pressure plate support 71, which extends into the central hole 25 and abuts against the inner wall of the central hole 25.

[0079] Nut 23, as part of the bolt assembly, is used to tighten pressure plate 22. Its rotation direction is a circular motion around the central axis, that is, the rotation direction is perpendicular to the central axis of the annular pressure plate 22. It can be understood that during the tightening process, the rotation of nut 23 may cause the pressure plate 7 in contact with it to have a certain rotational tendency.

[0080] Therefore, to solve the above problems, this utility model designs the pressure plate fixing component as a support lug structure extending downward from the edge of the pressure plate 7. The pressure plate support lug 71 can be inserted into the center hole 25 of the annular pressure plate 22. After insertion, the end of the pressure plate support lug 71 abuts against the inner wall of the center hole 25, thereby forming a limiting structure. The above structure enables the pressure plate 7 to maintain a stable position and not shift or rotate when subjected to the torque generated by the rotation of the nut 23.

[0081] For example, during the tightening of nut 23, due to the friction between the threads, pressure plate 7 may rotate along with nut 23. At this time, pressure plate lug 71 inserts into the center hole 25 and abuts against the inner wall, forming a limiting structure. Thus, when pressure plate lug 71 contacts the inner wall, it will be subject to a reverse restraint force from the inner wall, thereby preventing pressure plate 7 from continuing to rotate, thus realizing the anti-rotation function of pressure plate 7 during the tightening process.

[0082] It can be understood that one end of the pressure plate 7 is an open structure, which is fitted onto the bolt 24 and used in conjunction with the nut 23; the other end is a free end, equipped with a pressure plate support 71, which is used to provide positioning or limiting functions. The pressure plate support 71 is a protruding structure extending downward from the free end of the pressure plate 7, perpendicular to the plane of the pressure plate 22, that is, its extension direction forms a 90° angle with the plane where the pressure plate 22 is located. The length of the pressure plate support 71 is adapted so that it can extend into the central hole 25 of the annular pressure plate 22 and contact the inner wall to achieve the limiting function.

[0083] Furthermore, the tablet press 7 and the tablet press support 71 are integrally formed.

[0084] In this way, the one-piece molding structure avoids the risk of loosening and falling off that may exist in traditional connection methods, thereby ensuring that the tablet clamping lug 71 continues to play a limiting role under various working conditions. At the same time, it can also reduce the number of parts and assembly steps, and improve production efficiency.

[0085] like Figures 1 to 2 As shown, according to some embodiments of the present invention, the warning light 3 is installed in the mounting hole 12 by means of a sealing ring.

[0086] In this embodiment, a sealing ring is provided between the warning light 3 and the mounting hole 12. The sealing ring can provide good waterproof and dustproof sealing performance, thereby preventing the internal circuit from getting damp due to the humid environment.

[0087] In the specific implementation of the above embodiments, the technical features can be combined in any non-contradictory way. For the sake of brevity, not all possible combinations of the above technical features are described. However, as long as the combination of these technical features is not contradictory, it should be considered to be within the scope of this specification.

[0088] The specific embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. An electric water heater, characterized in that, Includes a housing (1), a warning light (3), and a warning light connecting wire (4); The warning light (3) is installed on the side wall of the housing (1). The side wall of the housing (1) is also provided with a through wire hole (11). The warning light connecting wire (4) passes through the wire hole (11) and is connected to the warning light (3). The warning light connecting wire (4) is provided with an anti-pull positioning component (5), at least part of which is located inside the outer casing (1) and stops inside the wire hole (11).

2. The electric water heater according to claim 1, characterized in that, The anti-pull positioning component (5) is a positioning post, which is located inside the outer shell (1). The diameter of the positioning post is larger than the diameter of the wire hole (11). The side wall of the outer casing (1) is also provided with a through mounting hole (12), which is spaced apart from the wire hole (11); the warning light (3) is installed in the mounting hole (12), and the length of the warning light connecting line (4) between the warning light (3) and the positioning post is greater than the distance between the mounting hole (12) and the wire hole (11).

3. The electric water heater according to claim 2, characterized in that, The positioning post is integrally formed on the outside of the warning light connection line (4).

4. The electric water heater according to claim 3, characterized in that, The positioning post is coaxially arranged with the warning light connection line (4).

5. The electric water heater according to claim 2, characterized in that, The outer casing (1) has an electrical wire sleeve (6) inserted through the wire hole (11). The warning light connecting wire (4) passes through the electrical wire sleeve (6) and is connected to the warning light (3). The diameter of the positioning post is larger than the diameter of the hole of the electrical wire sleeve (6).

6. The electric water heater according to any one of claims 1 to 5, characterized in that, It also includes a power cord (8) that passes through the wire hole (11).

7. The electric water heater according to claim 1, characterized in that, It also includes an inner liner (2), which includes an inner liner body (21) and a pressure plate (22) installed at the end of the inner liner body (21) by a bolt assembly. A pressure plate (7) for fixing the wires inside the outer shell (1) is also sandwiched between the bolt assembly and the pressure plate (22).

8. The electric water heater according to claim 7, characterized in that, The bolt assembly includes a bolt (24) and a nut (23). One end of the pressure plate (7) is sleeved on the bolt (24) and pressed onto the pressure plate (22) by the nut (23). The other end of the pressure plate (7) is provided with a pressure plate lug (71). The pressure plate lug (71) is perpendicular to the pressure plate (22). The pressure plate lug (71) extends into the central hole (25) of the pressure plate (22) and abuts against the inner wall of the central hole (25).

9. The electric water heater according to claim 8, characterized in that, The pressing plate (7) and the pressing plate support (71) are integrally formed.

10. The electric water heater according to claim 2, characterized in that, The warning light (3) is installed in the mounting hole (12) through a sealing ring.

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