Water heater

Abstract

The water heater comprises a shell, an inner container, a first ground wire and a second ground wire, the inner container is arranged in the shell, one end of the first ground wire is connected with the inner container, the other end of the first ground wire is suitable for being connected with an external ground wire, and one end of the second ground wire is connected with the shell. The other end of the second ground wire is suitable for being connected with an external ground wire. The first grounding wire and the second grounding wire are designed, the first grounding wire is connected with the inner container and the external ground wire, the second grounding wire is connected with the inner container and the external ground wire, and when electric leakage happens to the inner container, current sequentially flows through the first grounding wire and the external ground wire to be discharged; and when the shell leaks electricity, the current sequentially flows through the second ground wire and the external ground wire to be discharged, so that the use safety of the water heater is improved.

Description

Technical Field

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

[0002] The water heater needs to have leakage protection for the inner tank and the outer shell. In the related technology, the outer shell is connected to a terminal block, and the terminal block and the outer shell are connected by screwing. The grounding wire connects the inner tank and the terminal block, and the external ground wire is connected to the terminal block. When leakage occurs in the inner tank, the current flows through the grounding wire and the external ground wire in turn to be discharged. The surface of the outer shell is coated to improve the aesthetics and corrosion resistance. The current conduction between the outer shell and the terminal block needs to be achieved by screws, that is, when leakage occurs in the outer shell, the current flows through the screws, the terminal block and the external ground wire in turn to be discharged. However, the current is transmitted between the screws and the outer shell through threaded engagement. This method is prone to poor contact or excessive grounding resistance, which is not conducive to leakage protection and poses a safety hazard. Utility Model Content

[0003] The present application aims to solve one of the technical problems in the related art at least to a certain extent. To this end, the present application proposes a water heater.

[0004] To achieve the above object, the present application discloses a water heater, which comprises:

[0005] shell;

[0006] An inner liner, the inner liner is arranged in the outer shell;

[0007] A first grounding wire, one end of which is connected to the inner tank, and the other end of which is suitable for being connected to an external grounding wire; and

[0008] A second grounding wire, one end of which is connected to the housing, and the other end of which is suitable for being connected to an external grounding wire.

[0009] In some embodiments of the present application, the water heater includes a terminal socket, which is connected to the casing, and is suitable for connecting the other end of the first grounding wire, the other end of the second grounding wire and the external grounding wire thereto.

[0010] In some embodiments of the present application, the shell is provided with a mounting hole, the terminal block is provided with a flange, the flange abuts against the periphery of the mounting hole, and the water heater includes a fourth screw, which is suitable for passing through the flange and the shell for connection.

[0011] In some embodiments of the present application, the wiring socket is provided with a concave cavity, and the water heater includes a cover plate, and the cover plate covers the concave cavity.

[0012] In some embodiments of the present application, the outer shell includes a second enclosure, a second top cover and a second bottom cover, the second top cover is connected to the top end of the second enclosure, the second bottom cover is connected to the bottom end of the second enclosure, and the wiring socket is connected to the second top cover.

[0013] In some embodiments of the present application, the water heater includes a first wiring member, the first wiring member is connected to the inner tank, and one end of the first grounding wire is connected to the first wiring member.

[0014] In some embodiments of the present application, the first wiring member includes a first screw and a first nut, the first screw is welded to the inner tank, and the first nut and the first screw are connected to clamp one end of the first grounding wire.

[0015] In some embodiments of the present application, the inner liner includes a first enclosure, a first top cover and a first bottom cover, the first top cover is connected to the top end of the first enclosure, the first bottom cover is connected to the bottom end of the first enclosure, and the first wiring member is connected to the first top cover.

[0016] In some embodiments of the present application, the water heater includes a second wiring member, the second wiring member is connected to the housing, and one end of the second grounding wire is connected to the second wiring member.

[0017] In some embodiments of the present application, the second grounding wire includes a connecting plate, a second screw and a second nut, the connecting plate and at least a portion of the housing are integrally formed, and the second nut and the second screw are connected to clamp the connecting plate and the other end of the second grounding wire.

[0018] In some embodiments of the present application, the connecting plate and the second enclosure of the shell are integrally formed, the second enclosure is provided with an inspection hole, the connecting plate is exposed in the inspection hole, and the water heater includes an inspection cover, and the inspection cover covers the inspection hole.

[0019] The technical solution of the present application is achieved by designing a first grounding wire and a second grounding wire. The first grounding wire is connected to the inner tank and the external grounding wire respectively, and the second grounding wire is connected to the inner tank and the external grounding wire respectively. When leakage occurs in the inner tank, the current flows through the first grounding wire and the external grounding wire in sequence to be discharged. When leakage occurs in the outer shell, the current flows through the second grounding wire and the external grounding wire in sequence to be discharged, thereby improving the safety of the water heater.

[0020] Other advantages of the present application will be partially given in the following description, partially become apparent from the following description, or be understood through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other designs can be obtained based on the structures shown in these drawings without paying any creative work.

[0022] Figure 1 is a schematic diagram of a water heater in some embodiments;

[0023] Figure 2 A schematic diagram of connecting an external ground wire to a water heater in some embodiments;

[0024] Figure 3 for Figure 2 The enlarged view of the position indicated by A in the figure;

[0025] Figure 4 for Figure 3 The enlarged view of the position indicated by B in the figure;

[0026] Figure 5 It is a schematic diagram of the partial structure of the water heater in some embodiments (the second enclosure is not shown);

[0027] Figure 6 for Figure 5 The enlarged view of the position indicated by the mark C;

[0028] Figure 7 An exploded view of a water heater in some embodiments;

[0029] Figure 8 for Figure 7 The enlarged view of the position indicated by D in the figure;

[0030] Fig. 9 A schematic diagram of the coordination of a wiring base, a first grounding wire, and a second grounding wire in some embodiments;

[0031] Fig.10 Schematic diagram of the inner tank in some embodiments;

[0032] Fig.11 Schematic diagram of the housing in some embodiments.

[0033] Description of Figure Numbers:

[0034] Inner liner 1000, first enclosure 1100, first top cover 1200, first bottom cover 1300, outer shell 2000, second enclosure 2100, inspection hole 2110, second top cover 2200, mounting hole 2210, second bottom cover 2300, first grounding wire 3100, one end 3110 of first grounding wire 3100, the other end 3120 of first grounding wire 3100, second grounding wire 3200, one end 3210 of second grounding wire 3200, the other end 3220 of second grounding wire 32 ... The ground wire 4000, the terminal block 5100, the cavity 5110, the flange 5120, the through hole 5130, the cover plate 5200, the first terminal 6100, the first screw 6110, the first nut 6120, the second terminal 6200, the second screw 6210, the second nut 6220, the connecting plate 6230, the third screw 6300, the first connecting terminal 7100, the second connecting terminal 7200, the third connecting terminal 7300, the first live wire 8100, the first neutral wire 8200, and the inspection cover 9000.

[0035] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0037] It should be noted that all directional indications in the embodiments of the present application (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0038] In this application, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" 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 a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0039] In addition, in this application, descriptions such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0040] The present application proposes a water heater, combined with Figure 1 , Figure 2 , Figure 3 , Figure 5 , Figure 6 , Figure 7 and Figure 8 As shown, in some embodiments, the water heater includes an inner tank 1000, an outer shell 2000, a first grounding wire 3100 and a second grounding wire 3200, the inner tank 1000 is arranged in the outer shell 2000, one end 3110 of the first grounding wire 3100 is connected to the inner tank 1000 and the other end 3120 is suitable for connecting to the external grounding wire 4000, and one end 3210 of the second grounding wire 3200 is connected to the outer shell 2000 and the other end 3220 is suitable for connecting to the external grounding wire 4000.

[0041] By designing the first grounding wire 3100 and the second grounding wire, the first grounding wire 3100 is connected to the inner tank 1000 and the external grounding wire 4000 respectively, and the second grounding wire 3200 is connected to the inner tank 1000 and the external grounding wire 4000 respectively. When leakage occurs in the inner tank 1000, the current flows through the first grounding wire 3100 and the external grounding wire 4000 in sequence to be discharged. When leakage occurs in the outer shell 2000, the current flows through the second grounding wire 3200 and the external grounding wire 4000 in sequence to be discharged, thereby improving the safety of the water heater.

[0042] Optionally, the water heater is a vertical electric water heater, the inner tank 1000 is a vertical columnar structure as a whole, the inner tank 1000 is a component for storing water, and the water heater also includes a heater arranged in the inner tank 1000, and the water in the inner tank 1000 is heated by the heater so that the water becomes hot water, thereby providing it to the user. The inner tank 1000 is made of metal, and the metal can be copper alloy, iron alloy or aluminum alloy, etc. For example, the material of the inner tank 1000 is stainless steel. The outer shell 2000 constitutes the outer structure of the water heater, and the interior of the outer shell 2000 has a certain space for accommodating the inner tank 1000 so as to cover the inner tank 1000, and the material of the outer shell 2000 is metal, and the metal can be copper alloy, iron alloy or stainless steel, etc. For example, the material of the outer shell 2000 is stainless steel. The water heater works under the condition of power on to heat water, so it is necessary to perform leakage protection on the inner tank 1000 and the outer shell 2000, which is achieved by designing the first grounding wire 3100 and the second grounding wire 3200 in this embodiment.

[0043] One end 3110 of the first grounding wire 3100 is connected to the inner liner 1000, and the current can flow from the inner liner 1000 to the first grounding wire 3100. It can be understood that the first grounding wire 3100 is essentially a wire, including the second grounding wire 3200 and the external grounding wire 4000, which are also essentially wires. The connection method used to connect the wires to the protected parts (the shell 2000 and the inner liner 1000 in this application are the protected parts) to achieve the conduction of the current can be referred to in the relevant technology. The other end 3120 of the first grounding wire 3100 is connected to the external grounding wire 4000, and the current can flow from the first grounding wire 3100 to the external grounding wire 4000 to be discharged. It can be understood that the external grounding wire 4000 is generally connected to the ground, so as to guide the current to the ground. One end 3210 of the second grounding wire 3200 is connected to the housing 2000, and current can flow from the housing 2000 to the second grounding wire 3200. The other end 3220 of the second grounding wire 3200 is connected to the external grounding wire 4000, and current can flow from the second grounding wire 3200 to the external grounding wire 4000 to be discharged.

[0044] When leakage occurs in the inner tank 1000, the current flows from the inner tank 1000 to the first grounding wire 3100 and then to the external grounding wire 4000 and finally to the earth. When leakage occurs in the outer shell 2000, the current flows from the outer shell 2000 to the second grounding wire 3200 and then to the external grounding wire 4000 and finally to the earth. The inner tank 1000 is protected against leakage by setting the first grounding wire 3100, and the outer shell 2000 is protected against leakage by setting the second grounding wire 3200, thereby effectively improving the safety of the water heater.

[0045] The other end 3120 of the first grounding wire 3100 is connected to the external grounding wire 4000, and the other end 3220 of the second grounding wire 3200 is connected to the external grounding wire 4000. There are multiple ways: the other end 3120 of the first grounding wire 3100 and the other end 3220 of the second grounding wire 3200 are connected to the external grounding wire 4000 respectively. Alternatively, the other end 3120 of the first grounding wire 3100 is connected to the external grounding wire 4000, and the other end 3220 of the second grounding wire 3200 is connected between the two ends of the first grounding wire 3100. Alternatively, the other end 3220 of the second grounding wire 3200 is connected to the external grounding wire 4000, and the other end 3120 of the first grounding wire 3100 is connected between the two ends of the second grounding wire 3200.

[0046] Combination Figures 2 to 4 As shown, in some embodiments, the water heater includes a terminal socket 5100, which is designed to be connected to the outer casing 2000, and the other end 3120 of the first grounding wire 3100, the other end 3220 of the second grounding wire 3200 and the external grounding wire 4000 are connected to the terminal socket 5100. By setting the terminal socket 5100, the position where the first grounding wire 3100, the second grounding wire 3200 and the external grounding wire 4000 are connected is fixed to avoid shaking.

[0047] For example, combined with Figure 4 and Fig. 9 As shown, the other end 3120 of the first grounding wire 3100 and the other end 3220 of the second grounding wire 3200 are connected to the third connection terminal 7300, the third connection terminal 7300 has a third connection hole, and the terminal block 5100 also has a terminal block connection hole corresponding to the third connection hole, the third connection terminal 7300 is fitted with the terminal block 5100 so that the third connection hole corresponds to the terminal block connection hole, and the third screw 6300 is passed through the third connection hole and the terminal block connection hole, the external ground wire 4000 is wrapped around the third screw 6300 (of course, the external ground wire 4000 can also be connected to a connection terminal, and the connection is achieved through the connection terminal), and the third screw 6300 is tightened and fixed to press the third connection terminal 7300 and the external ground wire 4000 against the terminal block 5100, so that the other end 3120 of the first grounding wire 3100 is connected to the external ground wire 4000, and the other end 3120 of the first grounding wire 3100 is connected to the external ground wire 4000.

[0048] Combination Figure 2 , Figure 3 , Fig. 9 and Fig.11As shown, in some embodiments, the housing 2000 is provided with a mounting hole 2210, and the terminal holder 5100 is provided with a flange 5120, the flange 5120 abuts against the periphery of the mounting hole 2210, and a fourth screw (not shown in the figure) is used to pass through the flange 5120 and the housing 2000 to achieve the connection and fixation of the terminal holder 5100 and the housing 2000.

[0049] Specifically, the flange 5120 abuts against the periphery of the mounting hole 2210, and a fourth screw is passed through the flange 5120 and the housing 2000 and tightened, thereby achieving the connection and fixation of the terminal block 5100 and the housing 2000. Optionally, the terminal block 5100 is made of metal, and the fourth screw is also made of metal. When the screw passes through the flange 5120 and the housing 2000 for connection, since the other end 3120 of the first grounding wire 3100, the other end 3220 of the second grounding wire 3200, and the external ground wire 4000 are connected to the terminal block 5100, if the housing 2000 leaks electricity, the current of the housing 2000 can also flow from the housing 2000 through the fourth screw, the terminal block 5100, and the external ground wire 4000 in sequence, thereby being discharged (this structure With this arrangement, in conjunction with the arrangement of the second grounding wire 3200, double protection for the outer shell 2000 is formed. The current can be discharged from the outer shell 2000 through the fourth screw, the terminal block 5100 and the external grounding wire 4000 in sequence, or it can be discharged from the outer shell 2000 through the second grounding wire 3200 and the external grounding wire 4000 in sequence. Since the outer shell 2000 is within the touch range of the user, the double leakage protection of the outer shell 2000 further improves the safety of the water heater.

[0050] Combination Figure 1 and Figure 2 As shown, in some embodiments, the water heater includes a cover plate 5200 , the wiring socket 5100 is provided with a cavity 5110 , and the cover plate 5200 is used to cover the cavity 5110 .

[0051] Specifically, the terminal block 5100 can be designed to be integrally stamped, and the concave cavity 5110 of the terminal block 5100 passes through the mounting hole 2210 and is embedded in the housing 2000, and the flange 5120 abuts against the periphery of the mounting hole 2210, thereby completing the installation and positioning of the terminal block 5100. The terminal block 5100 has a through hole 5130, and the first grounding wire 3100 passes through the through hole 5130 from the inside of the water heater so that the other end 3120 of the first grounding wire 3100 is exposed, and the second grounding wire 3200 passes through the through hole 5130 from the inside of the water heater so that the other end 3220 of the second grounding wire 3200 is exposed. It can be understood that the water heater includes a first live wire 8100 and a first neutral wire 8200, the first live wire 8100 is exposed from the inside of the water heater through the through hole 5130, the first neutral wire 8200 is exposed from the inside of the water heater through the through hole 5130, the first live wire 8100 is used to connect with an external live wire, the first neutral wire 8200 is used to connect with an external neutral wire, the connection between the first ground wire 3100 and the external ground wire 4000, the connection between the second ground wire 3200 and the external ground wire 4000, the connection between the first live wire 8100 and the external live wire, and the connection between the first neutral wire 8200 and the external neutral wire can be placed in the concave cavity 5110, covered by the cover plate 5200 to avoid exposure. When the fourth screw is used for connection, the fourth screw can pass through the cover plate 5200 at the same time, so as to connect and fix the cover plate 5200, the terminal block 5100 and the housing 2000.

[0052] Combination Figure 2 and Fig.11 As shown, in some embodiments, the outer shell 2000 includes a second top cover 2200, a second enclosure 2100 and a second bottom cover 2300, the second top cover 2200 is connected to the top end of the second enclosure 2100, the second bottom cover 2300 is connected to the bottom end of the second enclosure 2100, and the terminal block 5100 is connected to the second top cover 2200.

[0053] The orientation in this article is based on the water heater placed on the ground, the side of the water heater close to the ground is the lower (bottom), and the side away from the ground is the upper (top). The second top cover 2200 is connected to the top of the second enclosure 2100, and the second bottom cover 2300 is connected to the bottom of the second enclosure 2100, so that the outer shell 2000 is surrounded by a certain space to accommodate the inner tank 1000. The second top cover 2200 and the second bottom cover 2300 have a relatively flat structure, and the second enclosure 2100 is hollow and cylindrical as a whole. When the water heater is placed on the ground, the second bottom cover 2300 is in contact with the ground. The water heater has a certain height, the second bottom cover 2300 is in contact with the ground and is blocked, the second enclosure 2100 is in the user's field of vision and activity range, and is more likely to be touched by the user, and the second top cover 2200 is relatively at a higher position, and it is not easy for the user to observe and touch the second top cover 2200. For this reason, in this embodiment, the terminal block 5100 is connected to the second top cover 2200, so that the user is not easy to touch the connection between the wires (the first grounding wire 3100, the second grounding wire 3200, the external grounding wire 4000, the first live wire 8100, the first neutral wire 8200, the external live wire and the external neutral wire).

[0054] Combination Figure 5 , Figure 6 and Fig. 9 As shown, in some embodiments, the water heater includes a first wiring member 6100 , the first wiring member 6100 is connected to the inner tank 1000 , and one end 3110 of the first grounding wire 3100 is connected to the first wiring member 6100 .

[0055] Specifically, the first wiring member 6100 is connected to the inner tank 1000, providing an installation basis for the connection of one end 3110 of the first grounding wire 3100. When one end 3110 of the first grounding wire 3100 is connected to the first wiring member 6100, if a leakage occurs in the inner tank 1000, the current flows from the inner tank 1000 through the first wiring member 6100 and the first grounding wire 3100 in sequence.

[0056] Optionally, combined Figure 6As shown, the first wiring member 6100 includes a first screw 6110 and a first nut 6120. The head of the first screw 6110 is welded to the inner liner 1000, and the first nut 6120 is tightened on the rod of the first screw 6110. One end 3110 of the first grounding wire 3100 is arranged between the head of the first screw 6110 and the first nut 6120. By tightening the first nut 6120, one end 3110 of the first grounding wire 3100 can be clamped, thereby achieving the connection and fixation of one end 3110 of the first grounding wire 3100. In particular, one end 3110 of the first grounding wire 3100 can be connected to the first connecting terminal 7100, and the first connecting terminal 7100 is provided with a first connecting hole. The first connecting terminal 7100 is sleeved on the rod of the first screw 6110 (the rod of the first screw 6110 passes through the first connecting hole), and the first nut 6120 is tightened onto the first screw 6110 to clamp the first connecting terminal 7100, that is, to clamp one end 3110 of the first grounding wire 3100, thereby achieving the connection and fixation of one end 3110 of the first grounding wire 3100.

[0057] Combination Figure 5 , Figure 6 and Fig.10 As shown, in some embodiments, the inner liner 1000 includes a first top cover 1200, a first enclosure 1100 and a first bottom cover 1300, the first top cover 1200 is connected to the top end of the first enclosure 1100, the first bottom cover 1300 is connected to the bottom end of the first enclosure 1100, and the first wiring member 6100 is connected to the first top cover 1200.

[0058] The first enclosure 1100 is in a hollow cylindrical shape, the first top cover 1200 is arranged at the top of the first enclosure 1100 and the first top cover 1200 is convex upward in an arc shape, the first bottom cover 1300 is arranged at the bottom of the first enclosure 1100 and is concavely arranged in an arc shape toward the inside of the liner 1000 (that is, the first bottom cover 1300 is convex upward), so that the liner 1000 is in a vertical columnar structure as a whole. The first top cover 1200 is opposite to the second top cover 2200 (the second top cover 2200 is located above the first top cover 1200), the first bottom cover 1300 is opposite to the second bottom cover 2300 (the second bottom cover 2300 is located below the first bottom cover 1300), and the first enclosure 1100 is opposite to the second enclosure 2100 (the second enclosure 2100 surrounds the first enclosure 1100). As can be seen from the above, the terminal block 5100 is connected to the second top cover 2200, and the first terminal 6100 is connected to the first top cover 1200, so that the length of the first grounding wire 3100 can be shortened as much as possible, which is conducive to cost saving.

[0059] Combination Figure 7 , Figure 8 and Fig.11As shown, in some embodiments, the water heater includes a second wiring member 6200 , the second wiring member 6200 is connected to the housing 2000 , and one end 3210 of the second grounding wire 3200 is connected to the second wiring member 6200 .

[0060] Specifically, the second wiring member 6200 is connected to the outer shell 2000, providing an installation basis for the connection of one end 3210 of the second grounding wire 3200. When one end 3210 of the second grounding wire 3200 is connected to the second wiring member 6200, if the outer shell 2000 leaks, the current flows from the outer shell 2000 through the second wiring member 6200 and the second grounding wire 3200 in sequence.

[0061] Optionally, combined Figure 8 As shown, the second wiring member 6200 includes a connecting plate 6230, a second screw 6210 and a second nut 6220, the connecting plate 6230 and at least part of the outer shell 2000 are integrally formed, for example, the outer shell 2000 includes a second top cover 2200, a second enclosure 2100 and a second bottom cover 2300, the connecting plate 6230 and the second enclosure 2100 are integrally formed, the connecting plate 6230 and one end 3210 of the second grounding wire 3200 are arranged between the head of the second screw 6210 and the second nut 6220, and the connection and fixation of one end 3210 of the second grounding wire 3200 are achieved by tightening the second nut 6220. In particular, one end 3210 of the second grounding wire 3200 can be connected to the second connecting terminal 7200, the second connecting terminal 7200 is provided with a second connecting hole, and the connecting plate 6230 is also provided with a corresponding hole. The rod of the second screw 6210 passes through the hole of the connecting plate 6230 and the second connecting hole. After tightening the second nut 6220, the second connecting terminal 7200 can be clamped, that is, the clamping of one end 3210 of the second grounding wire 3200 is achieved, thereby achieving the connection and fixation of one end 3210 of the second grounding wire 3200.

[0062] Furthermore, combined with Figure 1 , Figure 7 and Fig.11As shown, in some embodiments, the second enclosure 2100 is provided with an inspection hole 2110, through which the water heater can be maintained, and the water heater further includes an inspection cover 9000, which is used to cover the inspection hole 2110 to prevent the internal structure of the water heater from being exposed, thereby improving safety. There are multiple ways for the inspection cover 9000 to cover the inspection hole 2110, such as the inspection cover 9000 being detachably connected to the second enclosure 2100, or one side of the inspection cover 9000 being rotatably connected to the second enclosure 2100 and the other side being detachably connected to the second enclosure 2100, and the inspection cover 9000 opening or closing the inspection hole 2110 by rotating. On this basis, the connecting plate 6230 is designed to be exposed in the inspection hole 2110. Since the inspection cover 9000 covers the inspection hole 2110, the inspection cover 9000 also covers the connecting plate 6230 synchronously to avoid exposure.

[0063] It is understandable that the surface of the connecting plate 6230 does not need to be covered with a coating (the coating here should be understood as a layer of covering covering the surface of the component, and the material of the coating is not limited, and it can play an effect such as improving the aesthetics or corrosion resistance) to ensure the conduction of the current. Since the connecting plate 6230 and the second enclosure 2100 are integrally formed, the second enclosure 2100 and the connecting plate 6230 can be covered with a coating simultaneously during manufacturing, and then the coating on the surface of the connecting plate 6230 can be scraped off, or the connecting plate 6230 can be shielded when the second enclosure 2100 is covered with a coating.

[0064] The above description is only a preferred embodiment of the present application, and does not limit the patent scope of the present application. All equivalent structural changes made based on the concept of the present application and the contents of the present application description and drawings, or direct / indirect application in other related technical fields are included in the patent protection scope of the present application.

Claims

1. A water heater, characterized in that: The water heater comprises: Shell(2000); An inner liner (1000), the inner liner (1000) being arranged in the outer shell (2000); a first grounding wire (3100), one end (3110) of the first grounding wire (3100) being connected to the inner container (1000), and the other end (3120) of the first grounding wire (3100) being suitable for being connected to an external grounding wire (4000); and A second grounding wire (3200), one end (3210) of the second grounding wire (3200) is connected to the housing (2000), and the other end (3220) of the second grounding wire (3200) is suitable for connecting to an external grounding wire (4000).

2. The water heater according to claim 1, characterized in that: The water heater comprises a terminal socket (5100), the terminal socket (5100) is connected to the housing (2000), and the terminal socket (5100) is suitable for connecting the other end (3120) of the first grounding wire (3100), the other end (3220) of the second grounding wire (3200) and the external grounding wire (4000) thereto.

3. The water heater according to claim 2, characterized in that: The shell (2000) is provided with a mounting hole (2210), the wiring socket (5100) is provided with a flange (5120), the flange (5120) abuts against the periphery of the mounting hole (2210), and the water heater includes a fourth screw, which is suitable for passing through the flange (5120) and the shell (2000) for connection.

4. The water heater according to claim 2, characterized in that: The wiring socket (5100) is provided with a concave cavity (5110), and the water heater comprises a cover plate (5200), wherein the cover plate (5200) covers the concave cavity (5110).

5. The water heater according to claim 2, characterized in that: The housing (2000) includes a second enclosure (2100), a second top cover (2200) and a second bottom cover (2300), wherein the second top cover (2200) is connected to the top end of the second enclosure (2100), the second bottom cover (2300) is connected to the bottom end of the second enclosure (2100), and the wiring socket (5100) is connected to the second top cover (2200).

6. The water heater according to claim 1, characterized in that The water heater comprises a first connecting piece (6100), the first connecting piece (6100) is connected to the inner tank (1000), and one end (3110) of the first grounding wire (3100) is connected to the first connecting piece (6100).

7. The water heater according to claim 6, characterized in that The first connecting member (6100) includes a first screw (6110) and a first nut (6120), the first screw (6110) is welded to the inner tank (1000), and the first nut (6120) and the first screw (6110) are connected to clamp one end (3110) of the first grounding wire (3100).

8. The water heater according to claim 6, characterized in that The inner container (1000) includes a first enclosure (1100), a first top cover (1200) and a first bottom cover (1300), wherein the first top cover (1200) is connected to the top end of the first enclosure (1100), the first bottom cover (1300) is connected to the bottom end of the first enclosure (1100), and the first connecting piece (6100) is connected to the first top cover (1200).

9. The water heater according to claim 1, characterized in that: The water heater comprises a second wiring member (6200), the second wiring member (6200) is connected to the housing (2000), and one end (3210) of the second grounding wire (3200) is connected to the second wiring member (6200).

10. The water heater according to claim 9, characterized in that The second grounding wire (3200) includes a connecting plate (6230), a second screw (6210) and a second nut (6220), the connecting plate (6230) and at least a portion of the housing (2000) are integrally formed, and the second nut (6220) and the second screw (6210) are connected to clamp the connecting plate (6230) and the other end (3220) of the second grounding wire (3200).

11. The water heater according to claim 10, characterized in that The connecting plate (6230) and the second enclosure (2100) of the outer shell (2000) are integrally formed, the second enclosure (2100) is provided with an inspection hole (2110), the connecting plate (6230) is exposed in the inspection hole (2110), and the water heater includes an inspection cover (9000), and the inspection cover (9000) covers the inspection hole (2110).

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