Electric water heater

Abstract

This utility model relates to the field of hot water equipment technology and discloses an electric water heater. The housing has a first connecting hole and multiple snap-fit ​​structures; the panel has snap-fit ​​parts corresponding to the snap-fit ​​structures; each snap-fit ​​part has a hook, and all hooks face a first direction; the outer shell has an opening corresponding to the snap-fit ​​structure, the length of the opening in the first direction being greater than or equal to the length of the hook; a locking member passes through the first connecting hole and connects to the panel; an inner bubble with an electrical chamber is installed inside the outer shell, and the inner bubble has an opening on the side near the housing, the opening communicating with the electrical chamber; one end of the housing extends into the opening, and the projection of the locking member in a third direction is located inside the electrical chamber. In this utility model, the housing and panel are initially fixed by snap-fit ​​structures and then finally fixed by a locking member, so that the panel can be installed on or removed from the housing with only one locking member required, improving the installation and maintenance efficiency of the panel assembly.

Description

Technical Field

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

[0002] The panel assembly of existing electric water heaters consists of a housing and a panel. Typically, the panel is fixed to the outside of the housing with multiple screws, and then a patch is applied to cover the screws. The housing is fixed to the inner wall of the water heater's outer casing. However, when performing after-sales repairs on the panel, it is necessary to first peel off the patch and then remove all the screws before repairing the display components on the panel. The disassembly and installation of a large number of screws reduces the efficiency of panel removal, thus reducing installation and repair efficiency. Utility Model Content

[0003] The technical problem solved by this utility model is to provide an electric water heater that effectively solves the problem of low efficiency in the installation and maintenance of panel components.

[0004] The above-mentioned technical problems are solved by the following technical solutions:

[0005] An electric water heater, comprising:

[0006] shell;

[0007] The box body is installed on the inner side of the outer shell, and the box body is provided with a first connecting hole and multiple buckle structures;

[0008] A panel is installed on the outer side of the housing. The panel is provided with a plurality of snap-fit ​​parts, and the plurality of snap-fit ​​parts correspond one-to-one with a plurality of buckle structures. The snap-fit ​​parts have hooks, and the plurality of hooks are all oriented toward a first direction.

[0009] The outer shell has an opening corresponding to the position of the buckle structure. The length of the opening in the first direction is greater than or equal to the length of the hook, so that the hook can extend into the box body from the opening and slide the panel along the first direction so that the hook can engage with the buckle structure.

[0010] A locking element, which passes through the first connecting hole and is connected to the panel;

[0011] An inner bubble with an electrical compartment is installed inside the outer shell. The inner bubble has an opening on the side near the box body, and the opening communicates with the electrical compartment. One end of the box body extends into the opening. The projection of the locking member in a third direction is located inside the electrical compartment, and the third direction is perpendicular to the first direction.

[0012] Compared with the prior art, the electric water heater of this utility model has the following advantages: During installation, the hooks on the panel are aligned with the buckle structure on the box body. A through-hole is provided on the outer shell corresponding to the buckle structure, and the length of the through-hole in the first direction is greater than or equal to the length of the hook, allowing the hook to extend into the buckle structure through the through-hole. Then, the panel is slid to engage the hook with the buckle structure in the first direction, thereby securing the panel to the box body. Then, a locking member is passed through the first connecting hole at the opening of the inner foam component and connected to the panel, fixing the panel to the box body. For disassembly, simply remove the locking member and move the panel to release the hook engagement, allowing the panel to be removed quickly and easily. In this utility model, the box body and panel are initially fixed by the hooks and buckles and finally fixed by the locking member, ensuring the stability of the box body and panel installation. The panel can also be quickly installed onto the box body or removed from the box body, requiring only the removal and installation of one locking member, eliminating the need to remove or install numerous screws, thus improving the installation and maintenance efficiency of the panel assembly.

[0013] In one embodiment, the box has a receiving groove, and a plurality of the snap-fit ​​structures are symmetrically arranged on both sides of the receiving groove in a second direction, the second direction being perpendicular to the plane formed by the third direction and the first direction.

[0014] In one embodiment, the snap-fit ​​structure includes a first snap-fit ​​groove and a second snap-fit ​​groove that are connected. The length of the first snap-fit ​​groove in a first direction is greater than or equal to the length of the hook. The length of the second snap-fit ​​groove in the first direction is greater than the length of the first snap-fit ​​groove. The second snap-fit ​​groove and the first snap-fit ​​groove are arranged side by side in a third direction to form an engaging portion. The hook engages with the engaging portion.

[0015] In one embodiment, at least one of the engaging portions is provided with a limiting groove, and at least one of the hooks is provided with a limiting rib, wherein the limiting groove engages with the limiting rib.

[0016] In one embodiment, the panel is further provided with a positioning member on one side in the first direction, and the box is provided with a positioning groove on one side in the first direction, and the positioning member is correspondingly inserted into the positioning groove.

[0017] In one embodiment, the panel is further provided with a connecting post on the other side in the first direction, and the locking member passes through the first connecting hole and is connected to the connecting post;

[0018] The box body is also provided with a clearance groove on the other side in the first direction to avoid the connecting column.

[0019] In one embodiment, a service cover is also included, which is detachably mounted on one end of the housing near the inner bubble.

[0020] In one embodiment, the housing is detachably connected to the outer shell via a connector, and the panel covers the connector.

[0021] In one embodiment, the housing is provided with a mounting hole, and the outer periphery of the mounting hole is provided with a third connecting hole and a plurality of snap-fit ​​holes, the plurality of snap-fit ​​holes being located on both sides of the mounting hole in a second direction and on one side of the mounting hole in a first direction;

[0022] The connector includes a fastener and multiple claws, each claw corresponding to a snap-fit ​​hole; a fourth connecting hole on the housing, the housing being installed to the outer shell, the claws passing through the snap-fit ​​hole to engage the housing with the outer shell; the fastener passing through the third and fourth connecting holes to connect the housing with the outer shell.

[0023] In one embodiment, the mounting hole has a clearance space on one side in the first direction, and the clearance space corresponds to the clearance groove of the housing. Attached Figure Description

[0024] 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.

[0025] Figure 1 This is a schematic diagram of the structure of an electric water heater according to an embodiment of the present utility model;

[0026] Figure 2 This is a schematic diagram of the exploded structure of an electric water heater according to an embodiment of the present utility model;

[0027] Figure 3 for Figure 2 Enlarged diagram of A in the middle;

[0028] Figure 4 for Figure 2 Enlarged diagram of B in the middle;

[0029] Figure 5 This is a three-dimensional structural diagram of an electric water heater according to an embodiment of the present utility model;

[0030] Figure 6 for Figure 5 Enlarged diagram of C in the middle;

[0031] Figure 7 for Figure 6 Enlarged diagram of D in the middle;

[0032] Figure 8 This is a schematic diagram of the panel structure of an electric water heater according to an embodiment of the present invention;

[0033] Figure 9 This is a schematic diagram of the structure of the inner bubble element in an electric water heater according to an embodiment of the present utility model;

[0034] Figure 10 This is a cross-sectional view of an electric water heater according to an embodiment of the present utility model;

[0035] Figure 11 for Figure 10 Enlarged diagram of E in the middle;

[0036] Figure 12 This is another cross-sectional view of an electric water heater according to an embodiment of the present utility model;

[0037] Figure 13 for Figure 12 An enlarged schematic diagram of F in the middle.

[0038] Explanation of reference numerals in the attached figures:

[0039] 100. Outer shell; 110. Mounting hole; 120. Third connecting hole; 130. Snap-fit ​​hole; 140. Through opening; 150. Clearance space; 200. Panel assembly; 210. Box body; 211. First connecting hole; 212. First snap-fit ​​groove; 2121. Snap-fit ​​part; 21211. Limiting groove; 213. Second snap-fit ​​groove; 214. Positioning groove; 215. Clearance groove; 216. Flanged edge; 217. Fourth 218. Connecting hole; 218. Claw; 2181. Second body; 219. Receiving groove; 220. Panel; 221. Second connecting hole; 222. Hook; 2221. First body; 2222. Limiting rib; 223. Positioning component; 224. Edge retainer; 225. Connecting post; 300. Maintenance cover; 400. Inner bubble; 410. Opening; 420. Electrical compartment; 500. Locking component; 600. Fastener. Detailed Implementation

[0040] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0041] In the description of this utility model, it should be understood that 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 indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0042] According to embodiments of the present invention, such as Figures 1 to 13 As shown, an electric water heater is provided, including: a shell 100; a housing 210 installed on the inner side of the shell 100, the housing 210 having a first connecting hole 211 and multiple snap-fit ​​structures; a panel 220 installed on the outer side of the shell 100, the panel 220 having multiple snap-fit ​​parts, each snap-fit ​​part corresponding to a multiple snap-fit ​​structure; each snap-fit ​​part having a hook 222, the hooks 222 all facing a first direction; the shell 100 having an opening 140 at the position corresponding to the snap-fit ​​structure, the length of the opening 140 in the first direction being greater than or equal to the length of the hook 222, so that the hook 222... 2. A panel 220 can be slidable along the first direction and can be inserted into the box body 210 through the opening 140, so that the hook 222 can engage with the buckle structure; a locking member 500 passes through the first connecting hole 211 and is connected to the panel 220; an inner bubble 400 with an electrical chamber 420 is installed inside the outer shell 100, and the inner bubble 400 has an opening 410 on the side near the box body 210, which communicates with the electrical chamber 420; one end of the box body 210 extends into the opening 410, and the projection of the locking member 500 in the third direction is located inside the electrical chamber 420, and the third direction is perpendicular to the first direction.

[0043] In this embodiment, the outer shell 100 is the main body for mounting the box 210 and the panel assembly 200; the box 210 serves as the basic frame of the panel assembly 200, and a snap-fit ​​structure is provided on the outer surface of the box 210, i.e., the side facing the panel 220; the panel 220 covers the outer surface of the box 210, and a snap-fit ​​part is provided on the inner surface of the panel 220, i.e., the side facing the box 210, and the snap-fit ​​part is correspondingly provided with the snap-fit ​​structure; the snap-fit ​​part has hooks and all hooks are oriented in the first direction.

[0044] Furthermore, multiple openings 140 are provided on the outer shell 100, each corresponding to a snap-fit ​​structure on the box body 210. The length of the opening 140 in the first direction is greater than or equal to the length of the hook 222, thus providing a movement path for the hook 222. When the box body 210 is fixedly connected to the outer shell 100, and the panel 220 needs to be installed on the box body 210, the hook 222 on the panel 220 is aligned with the opening 140 on the outer shell 100, so that the hook 222 on the box body 210 first extends into the box body 210 from the opening 140. Then, the panel 220 is slid along the first direction, so that the hook 222 engages with the snap-fit ​​structure in the first direction, thereby achieving the snap-fit ​​between the panel 220 and the box body 210, thus initially fixing the panel 220 to the box body 210. When the panel 220 is initially fixed to the box 210, the locking member 500 is passed through the first connecting hole 211 to connect the first connecting hole 211 to the panel 220, thereby fixing the panel 220 to the box 210. The locking member 500 can be a screw or bolt, etc.

[0045] Furthermore, the inner bubble 400 is provided with an electrical chamber 420, which has a space for accommodating various electrical components. The inner bubble 400 is installed inside the outer casing 100 and located at the bottom of the outer casing 100; an opening 410 is provided on the side of the inner bubble 400 near the box body 210, the opening 410 communicating with the electrical chamber 420, and one end of the box body 210 extending into the opening 410. Since the projection of the locking member 500 in a third direction is located inside the electrical chamber 420; when it is necessary to connect the box body 210 and the panel 220 through the locking member 500, the locking member 500 can be passed through the first connecting hole 211 and connected to the panel 220 inside the outer casing 100, i.e., at the opening 410, thereby fixing the box body 210 and the panel 220 together, at which time the locking member 500 is located inside the electrical chamber 420. By using a locking member 500 inside the outer casing 100 to fix the panel 220 and the housing 210, the front of the panel 220 is screwless, which increases the aesthetics of the panel assembly 200. Here, the first direction is the vertical direction, and the third direction is the front-back direction.

[0046] In this utility model, the box body 210 and the panel 220 are initially fixed by the hook 222 and the buckle structure, and finally fixed by the locking member 500. This ensures the stability of the installation of the box body 210 and the panel 220, and also allows the panel 220 to be quickly installed on the box body 210 or removed from the box body 210. Only one locking member 500 needs to be installed or removed, without the need to disassemble or install a large number of screws, thereby improving the installation efficiency and maintenance efficiency of the panel assembly 200.

[0047] like Figure 2 , Figures 4 to 6As shown, in one embodiment, the box 210 has a receiving groove 219, and a plurality of snap-fit ​​structures are symmetrically arranged on both sides of the receiving groove 219 in a second direction, the second direction being perpendicular to the plane formed by the third direction and the first direction.

[0048] In this embodiment, the receiving groove 219 on the box body 210 extends rearward from the outer surface of the box body 210. By providing the receiving groove 219 on the box body 210, each component on the panel 220 has a receiving space. When the panel 220 is installed on the box body 210, each component on the panel 220 can be accommodated in the receiving groove 219. Multiple snap-fit ​​structures are symmetrically arranged on both sides of the receiving groove 219 in the second direction. When the panel 220 and the box body 210 are fastened together, multiple hooks 222 in the second direction can be fastened to the snap-fit ​​structures on both sides of the receiving groove 219. This provides multiple stress points for the snap-fit ​​structures on the box body 210, preventing excessive stress concentration and deformation of the box body 210, and also improving the stability of the installation of the panel 220 and the box body 210. The second direction is the left-right direction.

[0049] like Figure 7 , Figure 8 , Figures 12 to 13 As shown, in one embodiment, the snap-fit ​​structure includes a first snap-fit ​​groove 212 and a second snap-fit ​​groove 213 that are connected. The length of the first snap-fit ​​groove 212 in a first direction is greater than or equal to the length of the hook 222. The length of the second snap-fit ​​groove 213 in the first direction is greater than the length of the first snap-fit ​​groove 212. The second snap-fit ​​groove 213 and the first snap-fit ​​groove 212 are arranged side by side in a third direction to form an engaging portion 2121. The hook 222 engages with the engaging portion 2121.

[0050] In this embodiment, the snap-fit ​​structure consists of a first snap-fit ​​groove 212 and a second snap-fit ​​groove 213, which are interconnected. In a first direction, the length of the first snap-fit ​​groove 212 is greater than or equal to the length of the hook 222, while the length of the second snap-fit ​​groove 213 is greater than the length of the first snap-fit ​​groove 212. The first snap-fit ​​groove 212 and the second snap-fit ​​groove 213 are arranged side by side in a third direction, forming a locking part 2121. When it is necessary to snap the panel 220 onto the box body 210, the hook 222 is aligned with the first snap-fit ​​groove 212 and passes through the first snap-fit ​​groove 212 to extend into the second snap-fit ​​groove 213. Then, a driving force is applied to the cover plate, causing the cover plate to move in the first direction, thereby engaging the hook 222 with the locking part 2121 to initially fix the cover plate onto the box body 210.

[0051] In one embodiment, at least one engaging portion 2121 is provided with a limiting groove 21211, and at least one hook 222 is provided with a limiting rib 2222, wherein the limiting groove 21211 and the limiting rib 2222 are engaged.

[0052] In this embodiment, at least one hook 222 is provided with a limiting rib 2222; the engaging portion also has a first body 2221, one end of which is fixedly installed on the inner wall of the panel 220; the hook 222 is fixedly installed on the other end of the first body 2221; in the third direction, the hook 222 extends toward the engaging portion 2121 with a limiting rib 2222. At least one engaging portion 2121 is provided with a limiting groove 21211, the limiting groove 21211 and the limiting rib 2222 are corresponding one-to-one, and the limiting rib 2222 can be engaged in the limiting groove 21211.

[0053] When the panel 220 is fastened onto the box 210, the hook 222 is aligned with the first latching groove 212, allowing the hook 222 to pass through the first latching groove 212 and extend into the second latching groove 213. Then, the panel 220 is pushed in the first direction, causing the hook 222 to abut against the wall of the engaging part 2121. Furthermore, the limiting rib 2222 on the hook 222 is engaged within the limiting groove 21211, thus fastening the panel 220 within the box 210. Through the cooperation between the limiting rib 2222 and the limiting groove 21211, the panel 220 can be initially fixed onto the box 210, thereby preventing the panel 220 from loosening during installation.

[0054] In one embodiment, the panel 220 is further provided with a positioning member 223 on one side in the first direction, and the box 210 is provided with a positioning groove 214 on one side in the first direction, and the positioning member 223 is correspondingly inserted into the positioning groove 214.

[0055] In this embodiment, when the panel 220 is installed onto the box 210, the panel 220 moves along a first direction. Therefore, a positioning member 223 is provided on one side of the panel 220 in the first direction, and a positioning groove 214 is provided on one side of the box 210 in the first direction, so that the positioning member 223 and the positioning groove 214 correspond in position. This allows the panel 220 to be positioned on the box 210 through the cooperation of the positioning member 223 and the positioning groove 214. The positioning groove 214 also provides a certain movement path for the positioning member 223. When the panel 220 is installed into the box 210, the positioning member 223 is first aligned with the positioning groove 214. At this time, the hook 222 and the first snap-fit ​​groove 212 are also aligned. Then, the panel 220 is pushed along the first direction, thereby initially fastening the panel 220 onto the box 210.

[0056] In one embodiment, the panel 220 is further provided with a connecting post 225 on the other side of the first direction, and the locking member 500 passes through the first connecting hole 211 and is connected to the connecting post 225; the box body 210 is further provided with a relief groove 215 on the other side of the first direction for avoiding the connecting post 225.

[0057] In this embodiment, a retaining edge 224 is provided on the inner surface of the panel 220, that is, on the side of the panel 220 near the box 210. When the panel 220 is installed into the box 210, the outer wall of the retaining edge 224 will fit tightly against the wall of the box 210 or maintain a slight gap to ensure that the panel 220 can maintain a relatively stable position after being installed on the box 210. A positioning member 223 is provided on the top wall of the retaining edge 224, so that the positioning member 223 can first cooperate with the corresponding positioning groove 214 on the box 210 to ensure that the panel 220 is roughly in the correct position when initially placed.

[0058] Furthermore, a connecting post 225 is provided on the other side of the panel 220 in the first direction, and a clearance groove 215 is provided on the other side of the housing 210 in the first direction. When the panel 220 is installed in place, the connecting post 225 on the other side of the panel 220 in the first direction falls into the clearance groove 215. A second connecting hole 221 is provided on the connecting post 225, so that after the connecting post 225 falls into the clearance groove 215, the first connecting hole 211 on the housing 210 will be aligned with the second connecting hole 221 on the connecting post 225. At this time, the locking 500 can pass through the first connecting hole 211 and abut against the side wall of the second connecting hole 221 to achieve the installation and fixation between the panel 220 and the housing 210.

[0059] like Figure 2 , Figures 9 to 11 As shown, in one embodiment, a maintenance cover 300 is also included, which is detachably mounted on one end of the housing 100 near the inner bubble 400.

[0060] In this embodiment, a maintenance cover 300 is also connected to the bottom of the inner bulb 400, and the maintenance cover 300 is detachably installed on the end of the outer casing 100 near the inner bulb 400. The maintenance cover 300 seals the bottom of the electric water heater to facilitate the inspection, repair, or replacement of electrical components. When the panel assembly 200 needs to be repaired, simply remove the maintenance cover 300, then remove the locking member 500 from the panel 220 and the housing 210, and then remove the panel 220 from the housing 210 to repair the panel 220.

[0061] like Figures 3 to 7As shown, in one embodiment, the housing 210 is detachably connected to the outer shell 100 via a connector, and the panel 220 covers the connector. Further, the outer shell 100 has a mounting hole 110, and the outer periphery of the mounting hole 110 has a third connecting hole 120 and multiple snap-fit ​​holes 130. The multiple snap-fit ​​holes 130 are located on both sides of the mounting hole 110 in a second direction and on one side of the mounting hole 110 in a first direction. The connector includes a fastener 600 and multiple claws 218, each claw corresponding to a snap-fit ​​hole 130. The housing 210 has a fourth connecting hole 217. When the housing 210 is installed to the outer shell 100, the claws 218 pass through the snap-fit ​​holes 130, causing the housing 210 to engage with the outer shell 100. The fastener 600 passes through the third connecting hole 120 and the fourth connecting hole 217, connecting the housing 210 to the outer shell 100.

[0062] In this embodiment, the connector includes claws 218 and fasteners 600. A mounting hole 110 for mounting the housing 210 is provided on the outer casing 100; a third connecting hole 120 and multiple snap-fit ​​holes 130 are provided on the outer periphery of the mounting hole 110, the multiple snap-fit ​​holes 130 being located on both sides of the mounting hole 110 in the second direction and on one side of the mounting hole 110 in the first direction, respectively; wherein, the snap-fit ​​holes 130 on both sides of the mounting hole 110 in the second direction are through holes provided on the outer casing 100, and the snap-fit ​​hole 130 on one side of the mounting hole 110 in the first direction is a recessed hole provided on the outer casing 100. A flange 216 is provided on the outer periphery of the housing 210, and a fourth connecting hole 217 corresponding to the third connecting hole 120 is provided on the flange 216, with the multiple claws 218 all located on the flange. When installing the housing 210 onto the outer casing 100, align the claw 218 with the snap-fit ​​hole 130 and allow the claw 218 to pass through the snap-fit ​​hole 130; then push the housing 210 in the first direction so that the claw 218 abuts against the outer casing 100, thus initially fixing the housing 210 onto the outer casing 100. Further, fasteners 600 pass through the third connecting hole 120 and the fourth connecting hole 217, thereby securing the housing 210 onto the outer casing 100. The fastener 600 can be a screw or bolt, etc. Through the cooperation of the claw 218 and the snap-fit ​​hole 130, as well as the cooperation with the fastener 600, the housing 210 can be quickly installed onto the outer casing 100, further improving the installation efficiency of the panel assembly 200. In other embodiments, the connector may be only a screw or a snap-fit ​​structure.

[0063] In one embodiment, the mounting hole 110 is further provided with a clearance 150 on one side in the first direction, and the clearance 150 corresponds to the clearance groove 215 of the housing 210.

[0064] In this embodiment, to facilitate the installation of the connecting post 225 on the lower side of the panel 220 into the clearance groove 215 after the housing 210 is installed onto the outer shell 100, a clearance space 150 is provided below the mounting hole 110, and the clearance space 150 corresponds to the clearance groove 215 of the housing 210. When it is necessary to install the panel 220 onto the housing 210, the connecting post 225 can first pass through the clearance space 150 and then move into the clearance groove 215, thereby aligning the second connecting hole 221 and the first connecting hole 211 on the connecting post 225, so as to fix the housing 210 and the panel 220 together by means of the locking member 500.

[0065] In one embodiment, the distance from the outer edge of the flange 216 to the mounting hole 110 is greater than or equal to 20 mm.

[0066] In this embodiment, the distance from the outer edge of the flange 216 to the mounting hole 110 can be 20mm, 22mm, 24mm, 26mm, 28mm, 30mm, etc., and can be set according to actual usage needs without specific limitations. By setting a reasonable distance from the outer edge of the flange 216 to the mounting hole 110, the contact area between the box body 210 and the outer box can be increased, which can effectively prevent the outer shell 100 from deforming and reduce the risk of leakage.

[0067] 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.

[0068] 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, characterised in that, include: Outer shell (100); The box body (210) is installed on the inner side of the outer shell (100), and the box body (210) is provided with a first connecting hole (211) and multiple buckle structures; A panel (220) is installed on the outer side of the outer shell (100). The panel (220) is provided with a plurality of snap-fit ​​parts, and the plurality of snap-fit ​​parts correspond one-to-one with the plurality of buckle structures. The snap-fit ​​parts have hooks (222), and the plurality of hooks (222) are all arranged facing the first direction. The outer shell (100) has a through opening (140) corresponding to the position of the buckle structure. The length of the through opening (140) in the first direction is greater than or equal to the length of the hook (222), so that the hook (222) can extend into the box body (210) from the through opening (140) and slide the panel (220) along the first direction so that the hook (222) can engage with the buckle structure. A locking member (500) is connected to the panel (220) through the first connecting hole (211); An inner bubble (400) having an electrical chamber (420) is installed inside the outer shell (100). The inner bubble (400) has an opening (410) on the side near the box body (210), and the opening (410) communicates with the electrical chamber (420). One end of the box body (210) extends into the opening (410). The projection of the locking member (500) in a third direction is located inside the electrical chamber (420), and the third direction is perpendicular to the first direction.

2. The electric water heater according to claim 1, characterized in that, The box body (210) has a receiving groove (219), and a plurality of the buckle structures are symmetrically arranged on both sides of the receiving groove (219) in a second direction, the second direction being perpendicular to the plane formed by the third direction and the first direction.

3. The electric water heater according to claim 2, characterized in that, The snap-fit ​​structure includes a first snap-fit ​​groove (212) and a second snap-fit ​​groove (213) that are connected. The length of the first snap-fit ​​groove (212) in a first direction is greater than or equal to the length of the hook (222). The length of the second snap-fit ​​groove (213) in the first direction is greater than the length of the first snap-fit ​​groove (212). The second snap-fit ​​groove (213) and the first snap-fit ​​groove (212) are arranged side by side in a third direction to form an engaging part (2121). The hook (222) engages with the engaging part (2121).

4. The electric water heater according to claim 3, characterized in that, At least one of the engaging portions (2121) is provided with a limiting groove (21211), and at least one of the hooks (222) is provided with a limiting rib (2222). The limiting groove (21211) engages with the limiting rib (2222).

5. The electric water heater according to claim 1, characterized in that, The panel (220) is provided with a positioning member (223) on one side in the first direction, and the box body (210) is provided with a positioning groove (214) on one side in the first direction, and the positioning member (223) is inserted into the positioning groove (214).

6. The electric water heater according to claim 1, characterized in that, The panel (220) is also provided with a connecting post (225) on the other side of the first direction, and the locking member (500) passes through the first connecting hole (211) and is connected to the connecting post (225); The box body (210) is also provided with a clearance groove (215) on the other side of the first direction for avoiding the connecting post (225).

7. The electric water heater according to claim 1, characterized in that, It also includes a maintenance cover (300), which is detachably mounted on the outer casing (100) at one end near the inner bubble (400).

8. The electric water heater according to any one of claims 1-7, characterized in that, The box body (210) is detachably connected to the outer shell (100) via a connector, and the panel (220) covers the connector.

9. The electric water heater according to claim 8, characterized in that, The housing (100) is provided with a mounting hole (110), and the outer periphery of the mounting hole (110) is provided with a third connecting hole (120) and a plurality of snap-fit ​​holes (130). The plurality of snap-fit ​​holes (130) are located on both sides of the mounting hole (110) in the second direction and on one side of the mounting hole (110) in the first direction. The connector includes a fastener (600) and multiple claws (218), each of which corresponds to a snap-fit ​​hole (130). The housing (210) has a fourth connection hole. The housing (210) is installed on the outer shell (100). The claws (218) pass through the snap-fit ​​hole (130) to engage the housing (210) with the outer shell (100). The fastener (600) passes through the third connection hole (120) and the fourth connection hole (217) to connect the housing (210) with the outer shell (100).

10. The electric water heater according to claim 9, characterized in that, The mounting hole (110) has a clearance position (150) on one side in the first direction, and the clearance position (150) corresponds to the clearance groove (215) of the box body (210).

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