Water heater and shell structure

Abstract

The present invention relates to a water heater and a shell structure, including a bottom shell and a panel. The bottom shell includes two side panels arranged opposite to each other, and the edges of the two side panels in the height direction are respectively provided with first mounting walls extending in opposite directions. The panel surface opposite the first mounting wall is a second mounting wall. One of the first mounting wall or the second mounting wall is provided with a slot, and the other is provided with a buckle that cooperates with the slot, and the inner edge of the first mounting wall or the second mounting wall is provided with a positioning fold. After assembly, the bottom shell and the panel are positioned in the height direction by the buckle and the slot, and the position of the panel in the width direction of the shell structure is limited by the positioning fold, so that the gaps in the vertical and horizontal directions of the overall shell structure are effectively controlled, avoiding excessive gaps that cause impurities to enter the interior, and achieving a better visual overall effect.

Description

Technical Field

[0001] The present invention relates to the technical field of gas water heaters, and in particular to a water heater and a shell structure. Background Art

[0002] Water heaters are a common household appliance. As living standards improve, demands for both performance and comfort are growing, as are demands for the appearance of the water heater itself. Traditional water heaters often have split housings, which often have gaps or steps between the mating surfaces. This creates large gaps and noticeable steps, resulting in a poor visual overall appearance. Water and dust can also intrude, shortening the lifespan of internal components. Summary of the Invention

[0003] The present invention addresses the problem of large gaps between mating surfaces of conventional water heater shells and proposes a water heater and shell structure. The water heater and its shell structure have small gaps, thereby preventing impurities from entering the interior and providing a better visual overall effect.

[0004] A shell structure includes a bottom shell and a panel, the bottom shell includes two side panels arranged opposite to each other, the edges of the two side panels in the height direction are respectively provided with first mounting walls extending toward each other, the panel surface opposite to the first mounting wall is a second mounting wall, one of the first mounting wall or the second mounting wall is provided with a card slot, and the other is provided with a buckle that cooperates with the card slot, and the inner edge of the first mounting wall or the second mounting wall is provided with a positioning fold.

[0005] The above-mentioned shell structure is provided with a slot on one of the first mounting wall or the second mounting wall, and a buckle that cooperates with the slot is provided on the other. After assembly, the bottom shell and the panel are positioned in the height direction by the buckle and the slot, which can effectively control the step gap in the vertical direction of the shell structure. At the same time, a positioning fold is provided on the inner edge of the first mounting wall or the second mounting wall, so that the position of the panel in the width direction of the shell structure is limited by the positioning fold, effectively controlling the step gap in the horizontal direction between the panel and the side panel, so that the gap in the vertical and horizontal directions of the overall shell structure is effectively controlled, avoiding excessive gaps that cause impurities to enter the interior, and the visual integrity effect is better.

[0006] In one embodiment, three of the card slots are provided on the first mounting wall, and the three card slots are sequentially spaced from top to bottom along the height direction of the side plate, namely the first slot, the second slot and the third slot. Three of the card slots are sequentially spaced from top to bottom along the height direction of the side plate, namely the first slot, the second slot and the third slot. The second slot and the second slot have an interference fit, the first slot and the third slot have a clearance fit, and the third slot and the third slot have a clearance fit.

[0007] In one embodiment, the gap between the first buckle and the first groove in the height direction of the side plate is 0.1mm-0.3mm, and / or the interference gap between the second buckle and the second groove in the extension direction of the first mounting wall is 0.3mm-0.5mm.

[0008] In one embodiment, the first buckle includes a first introduction section and a first holding section, one end of the first holding section is connected to the second mounting wall, and the other end is connected to the first introduction section, and the angle between the first introduction section and the first holding section is a, and a is greater than 90° and less than 180°.

[0009] In one embodiment, the second buckle includes a second introduction section and a second holding section, two ends of the second holding section are connected to the second mounting wall, and the other end is connected to the second introduction section, and the second holding section is non-vertically connected to the second mounting wall, and the angle between the second introduction section and the second holding section is b, which is greater than 90° and less than 180°.

[0010] In one embodiment, the bottom shell also includes a top plate, a back plate and a bottom plate, the two side plates are connected by the top plate, the bottom plate is connected to the back plate, protrusions are provided on both sides of the outer surface of the bottom plate, and the ends of the two side plates away from the top plate are bent toward each other to form connecting walls, and the connecting walls are provided with positioning holes that cooperate with the protrusions. The connecting walls are sleeved outside the bottom plate and the protrusions are clamped in the positioning holes, and the side of the side plate away from the panel is in contact with the bottom plate.

[0011] In one embodiment, the protrusion is hemispherical and the positioning hole is semicircular.

[0012] In one embodiment, the two side panels and the top panel are an integrally formed U-shaped structure, the bottom panel and the back panel are an integrally formed L-shaped structure, and the side of the side panel and the top panel are provided with an inwardly extending wall, and the wall is sleeved on the outside of the back panel and fits with the back panel.

[0013] In one embodiment, an edge of the back panel corresponding to the wall is provided with a surrounding edge extending toward the panel, and the surrounding edge is provided outside the side panel and the top panel.

[0014] In one embodiment, a U-shaped folded edge is provided on one side of the top plate close to the panel and extends along the width direction of the side plate, and a first convex bump protruding outward is provided on the U-shaped folded edge, and a first threaded through hole is provided on the first convex bump. A first concave hole is provided on the end face of the panel opposite to the U-shaped folded edge, and the U-shaped folded edge is attached to the end face of the panel, and a first connecting member can pass through the first concave hole and the first threaded through hole in sequence to connect the panel and the U-shaped folded edge.

[0015] In one embodiment, a supporting wall extending toward the panel is provided on a side of the base plate close to the panel, the supporting wall is provided with a second convex bump protruding outward, a second threaded through hole is provided on the second convex bump, a second concave hole is provided on the end face of the panel opposite to the supporting wall, the supporting wall is attached to the end face of the panel, and a second connecting member can pass through the second concave hole and the second threaded through hole in sequence to connect the panel to the supporting wall.

[0016] In one embodiment, the shell structure further includes a glass decorative panel, a glue groove and a display port are provided on the panel, and the glass decorative panel is adhered to a side of the panel away from the side panel through the adhesive in the glue groove.

[0017] A water heater comprises the shell structure described in any one of the above items. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings constituting a part of this application are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0020] In addition, the drawings are not drawn to a 1:1 scale, and the relative sizes of the various elements are drawn only for illustrative purposes and are not necessarily drawn to true scale.

[0021] Figure 1 is a schematic diagram of the disassembly of the housing structure in one embodiment;

[0022] Figure 2 for Figure 1 Schematic diagram of the structure of the panel;

[0023] Figure 3 for Figure 1 Schematic diagram of the structure of the midsole shell (bottom plate and back plate);

[0024] Figure 4 for Figure 1 Schematic diagram of the structure of the midsole shell (side panels and top panel);

[0025] Figure 5 is a schematic transverse cross-sectional view of a housing structure in an embodiment at a first buckle position;

[0026] Figure 6is a schematic transverse cross-sectional view of the housing structure in an embodiment at a second buckle position;

[0027] Figure 7 Schematic diagram of the assembly of the housing structure in one embodiment Figure 1 ;

[0028] Figure 8 Schematic diagram of the assembly of the housing structure in one embodiment Figure 2 .

[0029] Description of reference numerals:

[0030] 10. Bottom shell, 110. Side panel, 112. First mounting wall, 1122. Slot, 1122a. First slot, 1122b. Second slot, 1122c. Third slot, 1124. Positioning fold, 114. Connecting wall, 1142. Positioning hole, 116. Wall, 120. Top panel, 122. U-shaped fold, 1222. First convex hull, 1224. First threaded through hole, 130. Back panel, 132. Surrounding edge, 140. Bottom panel, 142. Protrusion, 144. Supporting wall, 144 2. Second convex bump, 1444. Second threaded through hole, 20. Panel, 210. Second mounting wall, 212. Buckle, 212a. First buckle, 2122a. First introduction section, 2124a. First holding section, 212b. Second buckle, 2122b. Second introduction section, 2124b. Second holding section, 212c. Third buckle, 220. First concave hole, 230. Second concave hole, 240. Glue groove, 250. Display port, 30. Glass decorative panel, 40. Upper hanging plate, 50. Lower hanging plate. DETAILED DESCRIPTION

[0031] To make the above-mentioned objects, features, and advantages of the present invention more readily apparent, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings. The following description sets forth numerous specific details to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways than those described herein, and those skilled in the art may make similar modifications without departing from the scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0032] See also Figures 1 to 4 An embodiment of the present application provides a shell structure, including a bottom shell 10 and a panel 20, the bottom shell 10 includes two side panels 110 arranged opposite to each other, and the edges of the two side panels 110 in the height direction are respectively provided with first mounting walls 112 extending toward each other, and the plate surface of the panel 20 opposite to the first mounting wall 112 is a second mounting wall 210, and a card slot 1122 is opened on the first mounting wall 112, and the second mounting wall 210 is provided with a buckle 212 that cooperates with the card slot 1122, and the inner edge of the first mounting wall 112 is provided with a positioning folded edge 1124.

[0033] In other embodiments, the slot 1122 may be opened on the second installation wall 210 , the buckle 212 may be provided on the first installation wall 112 , and the positioning fold 1124 may be provided on the second installation wall 210 .

[0034] By providing a slot 1122 on one of the first mounting wall 112 or the second mounting wall 210, and a buckle 212 that cooperates with the slot 1122 on the other, the bottom shell 10 and the panel 20 are positioned in the height direction by the buckle 212 and the slot 1122 after assembly, which can effectively control the step gap in the vertical direction of the shell structure. At the same time, a positioning fold 1124 is provided on the inner edge of the first mounting wall 112 or the second mounting wall 210, so that the position of the panel 20 in the width direction of the shell structure is limited by the positioning fold 1124, effectively controlling the horizontal step gap between the panel 20 and the side panel 110, thereby effectively controlling the vertical and horizontal gaps of the entire shell structure, avoiding excessive gaps that may cause impurities to enter the interior, and improving the visual integrity. The positioning fold 1124 cooperates with the panel 20 and can also effectively strengthen the edge strength of the side panel 110.

[0035] Reference Figure 8 A spatial coordinate system is established based on the water heater's installed position. In this embodiment, the height direction refers to the Z-axis, and the width direction refers to the X-axis. The positioning flange 1124 extends outward along the Y-axis to limit the position of the panel 20 along the X-axis.

[0036] Specifically, refer to Figure 2 、 4, 5, 6, in one embodiment, the first mounting wall 112 is provided with three slots 1122, which are spaced apart from each other along the height direction of the side panel 110 from top to bottom, namely, a first slot 1122a, a second slot 1122b, and a third slot 1122c. The second mounting wall 210 is provided with three buckles 212, which are spaced apart from each other along the height direction from top to bottom, namely, a first buckle 212a, a second buckle 212b, and a third buckle 212c. The second slot 1122b has an interference fit with the second buckle 212b, the first buckle 212a has a clearance fit with the first slot 1122a, and the third buckle 212c has a clearance fit with the third slot 1122c. The panel 20 is connected to the side panel 110 by matching the six clips 212 with the slots 1122. At the same time, the first clip 212a at the top and the first groove 1122a and the third clip 212c at the bottom and the third groove 1122c are clearance fit, which is convenient for the positioning and assembly of the panel 20 and the side panel 110. The second groove 1122b located in the middle and the second clip 212b are interference fit. The slight interference fit allows the second clip 212b to be inserted into the second groove 1122b with a certain force without affecting the overall assembly. At the same time, after the panel 20 is assembled, it can avoid the situation where there is no force-bearing tensioning part in the middle of the panel 20, resulting in a large gap. The gap and step between the side panel 110 and the panel 20 are effectively controlled to ensure that the two are flush and the gap is small.

[0037] Optionally, in other embodiments, the number of buckles 212 and slots 1122 can be set according to the actual size of the product, and can be four, eight, or other numbers.

[0038] Reference Figure 1 、 5 In one embodiment, the clearance between the first buckle 212a and the first groove 1122a in the height direction of the side panel 110 is 0.1mm-0.3mm. The clearance between the topmost first buckle 212a and the first groove 1122a is controlled within the range of 0.1mm-0.3mm, allowing the first buckle 212a and the first groove 1122a to be precisely positioned in the vertical direction, ensuring a more accurate vertical position of the entire panel 20.

[0039] Reference Figure 5In one embodiment, the first buckle 212a includes a first introduction section 2122a and a first retaining section 2124a. One end of the first retaining section 2124a is connected to the second mounting wall 210, and the other end is connected to the first introduction section 2122a. The included angle between the first introduction section 2122a and the first retaining section 2124a is a, and a is greater than 90° and less than 180°, so that the first introduction section 2122a and the first retaining section 2124a form an inclined connection. The first introduction section 2122a serves as a guide to facilitate the first buckle 212a to be inserted into the first groove 1122a. The first retaining section 2124a is retained in the first groove 1122a. The first introduction section 2122a also prevents the first buckle 212a from sliding out after the first retaining section 2124a is inserted. In this embodiment, the first holding section 2124a is vertically connected to the second mounting wall 210, so as to facilitate the first buckle 212a to be inserted into the first groove 1122a.

[0040] Further, refer to Figure 1 、 6 In one embodiment, the interference gap between the second latch 212b and the second slot 1122b in the extension direction of the first mounting wall 112 is 0.3mm-0.5mm. The interference gap between the second slot 1122b located in the middle and the second latch 212b in the X-axis direction is 0.3mm-0.5mm, forming a slight interference fit, preferably 0.4mm. This does not affect assembly and allows the panel 20 to be locked in the slot 1122 after installation, thus limiting the center of the panel 20 and ensuring a small overall gap.

[0041] Reference Figure 6In one embodiment, the second buckle 212b includes a second introduction section 2122b and a second holding section 2124b, the two ends of the second holding section 2124b are connected to the second mounting wall 210, and the other end is connected to the second introduction section 2122b, and the second holding section 2124b is non-vertically connected to the second mounting wall 210, and the angle between the second introduction section 2122b and the second holding section 2124b is b, which is greater than 90° and less than 180°. The included angle b between the second lead-in section 2122b and the second retaining section 2124b is greater than 90° and less than 180°, forming an oblique connection between the second lead-in section 2122b and the second retaining section 2124b. The second lead-in section 2122b acts as a guide, facilitating the insertion of the second buckle 212b into the second groove 1122b. The second retaining section 2124b is retained within the second groove 1122b. The second lead-in section 2122b also prevents the second buckle 212b from sliding out after the second retaining section 2124b is inserted. In this embodiment, the second retaining section 2124b is non-perpendicular to the second mounting wall 210, forming a slight interference fit between the second buckle 212b and the second groove 1122b along the X-axis.

[0042] Reference Figure 1 、 3 4. Further, in one embodiment, the bottom shell 10 also includes a top plate 120, a back plate 130 and a bottom plate 140, the two side plates 110 are connected through the top plate 120, the bottom plate 140 is connected to the back plate 130, and protrusions 142 are provided on both sides of the outer surface of the bottom plate 140. The ends of the two side plates 110 away from the top plate 120 are bent toward each other to form connecting walls 114, and the connecting walls 114 are provided with positioning holes 1142 that cooperate with the protrusions 142. The connecting walls 114 are sleeved outside the bottom plate 140 and the protrusions 142 are clamped in the positioning holes 1142. The side of the side plate 110 away from the panel 20 is in contact with the bottom plate 140. The side panels 110 extend along the X-axis to form connecting walls 114, which wrap around the top panel 120. Positioning holes 1142 on the connecting walls 114 nest with protrusions 142 on the bottom panel 140, ensuring precise assembly. Furthermore, after assembly, the bottom panel 140 is positioned at the bottom of the water heater, without affecting the overall visual effect. Optionally, in this embodiment, the protrusions 142 are hemispherical, and the positioning holes 1142 are semicircular, facilitating assembly and adjustment. In other embodiments, the protrusions 142 can also be spherical, prismatic, or other shapes, with the corresponding positioning holes 1142 being circular or polygonal.

[0043] Reference Figure 4 In this embodiment, the two side panels 110 and the top panel 120 are integrally formed into a U-shaped structure. Figure 3, the bottom plate 140 and the back plate 130 are an integrally formed L-shaped structure. That is, the bottom shell 10 is assembled into two split structures, which is convenient for processing and molding and effectively ensures the overall fitting clearance. The side of the side plate 110 and the top plate 120 away from the panel 20 are both provided with an inwardly extending wall 116, and the wall 116 is sleeved on the outside of the back plate 130 and fits with the back plate 130. By providing the wall 116, the back plate 130 is entirely wrapped in the wall 116, which not only makes it difficult for the back plate 130 to fall out, but also the wall 116 and the back plate 130 can be welded together to form a stable connection, thereby enhancing the overall strength. After assembly, the back plate 130 is located on the back of the water heater, and the mating surface between the wall 116 and the back plate 130 is hidden, which does not affect the overall visual effect.

[0044] Further, refer to Figure 3 In one embodiment, the edge of the back panel 130 corresponding to the wall 116 is provided with a border 132 extending toward the panel 20, and the border 132 is arranged outside the side panels 110 and the top panel 120. The border 132 is in contact with the side panels 110 and the top panel 120 to enhance strength.

[0045] Reference Figure 1 、 4 In one embodiment, a U-shaped folded edge 122 extending along the width direction of the side panel 110 is provided on the side of the top plate 120 close to the panel 20, and the U-shaped folded edge 122 is provided with a first convex bump 1222 protruding outward, and a first threaded through hole 1224 is opened on the first convex bump 1222. A first concave hole 220 is provided on the end surface of the panel 20 opposite to the U-shaped folded edge 122, and the U-shaped folded edge 122 is affixed to the end surface of the panel 20, and the first connecting member can pass through the first concave hole 220 and the first threaded through hole 1224 in sequence to connect the panel 20 with the U-shaped folded edge 122. A U-shaped folded edge 122 is provided on the top plate 120 extending in the direction of the Y-axis to facilitate cooperation with the top end face of the panel 20. The U-shaped folded edge 122 is recessed downward relative to the surface of the top plate 120 in the direction of the Y-axis. A first convex bump 1222 is provided to cooperate with the first concave hole 220 on the panel 20 to ensure that the two can form a precise alignment. The first connecting member passes through the first concave hole 220 and the first threaded through hole 1224 in sequence to connect the panel 20 to the U-shaped folded edge 122. The U-shaped folded edge 122 can also serve as a water barrier after assembly, so that the water heater can be used normally even if there is a slight drip on the top of the water heater. The first connecting member is a screw, bolt or other fastener. In this application, the inward direction refers to the direction toward the inside of the water heater, and the outward direction refers to the direction toward the outside of the water heater.

[0046] Reference Figure 1 、 3In one embodiment, a supporting wall 144 extending toward the panel 20 is provided on a side of the bottom plate 140 close to the panel 20, and the supporting wall 144 is provided with a second convex bulge 1442 protruding outward, and a second threaded through hole 1444 is opened on the second convex bulge 1442. A second concave hole 230 is provided on the end surface of the panel 20 opposite to the supporting wall 144, and the supporting wall 144 is attached to the end surface of the panel 20, and the second connecting member can pass through the second concave hole 230 and the second threaded through hole 1444 in sequence to connect the panel 20 to the supporting wall 144. A supporting wall 144 is provided on the bottom plate 140 extending along the Y-axis to facilitate cooperation with the bottom end surface of the panel 20. The supporting wall 144 is recessed upward along the Y-axis relative to the surface of the bottom plate 140. A second protrusion 1442 is provided to cooperate with the second recessed hole 230 on the panel 20 to ensure that the two can form a precise alignment. The second connecting member can pass through the second recessed hole 230 and the second threaded through hole 1444 in sequence to connect the panel 20 to the supporting wall 144. The first connecting member is a screw, bolt, or other fastener.

[0047] Reference Figure 1 、 7 8. Furthermore, the housing structure includes an upper hanging plate 40 and a lower hanging plate 50. The lower hanging plate 50 is used to support the water heater and is welded to the back plate 130. The upper hanging plate 40 is used to suspend the water heater during installation and support it when placed. It is welded to the top plate 120 or the back plate 130. The upper hanging plate 40 and the lower hanging plate 50 can have the same structure.

[0048] Reference Figure 1 Furthermore, in this embodiment, the shell structure also includes a glass decorative panel 30, and a glue groove 240 and a display port 250 are provided on the panel 20. The glass decorative panel 30 is attached to the side of the panel 20 away from the side panel 110 through the glue in the glue groove 240. The glass decorative panel 30 is made of tempered glass with a thickness of 3 mm, the front is the appearance surface, and the back is the ink surface. The use of the glass decorative panel 30 can more conveniently switch the appearance effect without adjusting the other parts, so that the product appearance can be diversified. The panel 20 is made of 0.75 mm thick hot-dip galvanized sheet (oiled) 08AL. Glue grooves 240 with a depth of 0.5 mm are provided around and inside the panel 20 for gluing, so that the panel 20 and the glass decorative panel 30 can be glued together. A large square display port 250 is provided in the lower middle part of the panel 20 for display, and it is convenient to switch the display and operation buttons.

[0049] Reference Figure 7 、 8Another embodiment of the present application provides a water heater comprising the housing structure described in any of the above embodiments. The water heater is a gas water heater. The above housing structure effectively controls the vertical and horizontal clearances within the overall housing structure of the water heater, preventing excessive clearances. This allows the assembled water heater to have a step less than 0.5 mm, ensuring a refined appearance.

[0050] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0051] The above-described embodiments merely illustrate several implementations of the present invention, and while their descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the spirit of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the patent for this invention shall be determined by the appended claims.

[0052] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0053] Furthermore, 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 the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0054] In the present invention, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two components, or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0055] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0056] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

Claims

1. A housing structure, characterized in that: The bottom shell includes two side panels arranged opposite to each other, and the edges of the two side panels in the height direction are respectively provided with first mounting walls extending toward each other, and the panel surface opposite to the first mounting wall is a second mounting wall, one of the first mounting wall or the second mounting wall is provided with a slot, and the other is provided with a buckle that cooperates with the slot, and the inner edge of the first mounting wall or the second mounting wall is provided with a positioning folded edge; The first mounting wall is provided with three slots, which are sequentially spaced from top to bottom along the height direction of the side plate, namely, a first slot, a second slot, and a third slot. The second mounting wall is sequentially spaced from top to bottom along the height direction thereof, namely, a first buckle, a second buckle, and a third buckle. The second slot has an interference fit with the second buckle, the first buckle has a clearance fit with the first slot, and the third buckle has a clearance fit with the third slot. The first buckle includes a first introduction section and a first holding section, one end of the first holding section is connected to the second mounting wall, and the other end is connected to the first introduction section, and the angle between the first introduction section and the first holding section is a, a is greater than 90° and less than 180°, the second buckle includes a second introduction section and a second holding section, two ends of the second holding section are connected to the second mounting wall, and the other end is connected to the second introduction section, and the second holding section is non-vertically connected to the second mounting wall, and the angle between the second introduction section and the second holding section is b, b is greater than 90° and less than 180°.

2. The housing structure according to claim 1, wherein: The gap between the first buckle and the first groove in the height direction of the side plate is 0.1mm-0.3mm, and / or the interference gap between the second buckle and the second groove in the extension direction of the first mounting wall is 0.3mm-0.5mm.

3. The housing structure according to any one of claims 1 to 2, characterized in that: The bottom shell also includes a top plate, a back plate and a bottom plate. The two side plates are connected by the top plate, and the bottom plate is connected to the back plate. Both sides of the outer surface of the bottom plate are provided with protrusions. The ends of the two side plates away from the top plate are bent toward each other to form connecting walls. The connecting walls are provided with positioning holes that cooperate with the protrusions. The connecting walls are sleeved outside the bottom plate and the protrusions are clamped in the positioning holes. The side of the side plate away from the panel is in contact with the bottom plate.

4. The housing structure according to claim 3, wherein: The protrusion is hemispherical, and the positioning hole is semicircular.

5. The housing structure according to claim 3, characterized in that: The two side panels and the top panel are an integrally formed U-shaped structure, the bottom panel and the back panel are an integrally formed L-shaped structure, and the side of the side panel and the top panel are provided with an inwardly extending wall, which is sleeved on the outside of the back panel and fits with the back panel.

6. The housing structure according to claim 5, characterized in that: The edge of the back plate corresponding to the wall is provided with a surrounding edge extending toward the panel, and the surrounding edge is arranged outside the side plate and the top plate.

7. The housing structure according to claim 5, characterized in that: The top plate is provided with a U-shaped folded edge on one side close to the panel and extends along the width direction of the side plate. The U-shaped folded edge is provided with a first convex bump protruding outward, and a first threaded through hole is opened on the first convex bump. A first concave hole is provided on the end face of the panel opposite to the U-shaped folded edge. The U-shaped folded edge is attached to the end face of the panel, and a first connecting member can pass through the first concave hole and the first threaded through hole in sequence to connect the panel and the U-shaped folded edge.

8. The housing structure according to claim 7, characterized in that: A supporting wall extending toward the panel is provided on the side of the bottom plate close to the panel, and a second convex bump protruding outward is provided on the supporting wall, and a second threaded through hole is provided on the second convex bump. A second concave hole is provided on the end face of the panel opposite to the supporting wall, and the supporting wall is attached to the end face of the panel, and a second connecting member can pass through the second concave hole and the second threaded through hole in sequence to connect the panel to the supporting wall.

9. The housing structure according to any one of claims 1 to 2, characterized in that: It also includes a glass decorative panel, which is provided with a glue groove and a display port. The glass decorative panel is adhered to the side of the panel away from the side panel through the adhesive in the glue groove.

10. A water heater, characterized in that: The invention comprises the housing structure according to any one of claims 1 to 9.

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