Shell assembly and gas water heater

Abstract

The utility model discloses a shell assembly and a gas water heater. The shell assembly comprises a bottom shell and a face shell, the bottom shell is provided with a containing cavity, the side wall of the containing cavity is provided with first turnups, the first turnups extend in the direction towards the containing cavity, the two opposite first turnups are provided with preformed holes, the side wall of the containing cavity is provided with counter bores, and the counter bores and the preformed holes are correspondingly arranged; the periphery of the face shell is provided with a second flange, the second flange is used for abutting against the corresponding first flange, the face shell is provided with an inserting piece, the inserting piece is used for being inserted into the preformed hole, and the inserting piece is used for being connected with a screw or a bolt penetrating through the counter bore so that the face shell can be fixedly connected with the bottom shell. And the counter bore is used for accommodating a screw cap of the screw or the bolt. According to the utility model, the risk that hands are scratched by the edges of the counter bores and screws when the gas water heater is packaged or installed can be avoided.

Description

Technical Field

[0001] The utility model relates to the field of gas combustion equipment, in particular to a gas water heater and a shell assembly thereof. Background Art

[0002] In related technologies, the bottom shell of a gas water heater is constructed using a stretching process combined with flange punching, and then secured to the pre-assembled main body inside the unit with screws. These screws may be exposed on the back of the bottom shell. This poses a risk of scratching operators' hands with the screws or flange holes when packaging the unit in a plastic bag. This risk also exists during after-sales installation. Utility Model Content

[0003] The present invention aims to solve at least one of the technical problems in the prior art. To this end, the present invention provides a housing assembly to eliminate the risk of scratching hands during packaging or installation of a gas water heater.

[0004] The utility model also provides a gas water heater adopting the shell assembly.

[0005] According to the shell assembly of the embodiment of the first aspect of the present invention, it includes a bottom shell and a face shell, the bottom shell is provided with a cavity, the side wall of the cavity is provided with a first flange, the first flange is extended in the direction of the cavity, wherein two opposite first flanges are provided with reserved holes, the side wall of the cavity is provided with countersunk holes, and the countersunk holes are arranged corresponding to the reserved holes; the periphery of the face shell is provided with a second flange, the second flange is used to abut with the corresponding first flange, the face shell is provided with a plug-in, the plug-in is used to be inserted into the reserved hole, the plug-in is used to be connected with a screw or bolt passing through the countersunk hole, so that the face shell is fixedly connected to the bottom shell, and the countersunk hole is used to accommodate the nut of the screw or the bolt.

[0006] The shell assembly according to the embodiment of the present invention has at least the following beneficial effects: the present invention provides a countersunk hole on the bottom shell, and the nut of the screw or bolt connecting the bottom shell and the surface shell is accommodated in the countersunk hole, thereby hiding the nut and the nut will not protrude from the surface of the bottom shell. Moreover, the edge of the countersunk hole is folded toward the inside of the bottom shell, thereby avoiding the risk of the edge of the countersunk hole and the screw scratching the hands during packaging or installation of the gas water heater.

[0007] According to some embodiments of the present invention, the bottom shell is provided with at least one air inlet, and a first folded edge is provided around the periphery of the air inlet, and the first folded edge is located on a side of the bottom shell facing the cavity.

[0008] According to some embodiments of the present invention, a wind guide plate is provided on the side of the bottom shell facing away from the cavity, the wind guide plate is connected to the bottom shell and is located above the air inlet, there is a gap between the wind guide plate and the bottom shell, and one side of the wind guide plate is provided with an opening.

[0009] According to some embodiments of the present invention, the air guide plate includes a cover plate and a spoiler, the cover plate is connected to the bottom shell, the spoiler is arranged on the side of the cover plate facing the bottom shell, and the spoiler is provided with multiple spoiler holes.

[0010] According to some embodiments of the present invention, a second folded edge is provided around the spoiler hole, and the second folded edge extends toward a side close to the cover plate.

[0011] According to some embodiments of the present invention, a hanging ear is provided at the upper end of the bottom shell, and a avoidance hole for the hanging ear to pass through is provided on the cover plate.

[0012] According to some embodiments of the present invention, two other opposite first flanges of the bottom shell are provided with plug-in holes, and corresponding parts of the surface shell are provided with plug-in parts, and the plug-in parts are used to be plugged into the plug-in holes.

[0013] According to some embodiments of the present invention, a plurality of brackets are installed inside the bottom shell, and the brackets are used to fix the main body of the gas water heater.

[0014] According to some embodiments of the present invention, a through hole is provided at one end of the bracket and a notch is provided at the other end. A protrusion is correspondingly provided on the inner wall of the bottom shell. The protrusion is correspondingly passed through the through hole and the notch to position the bracket.

[0015] A gas water heater according to an embodiment of the second aspect of the present invention includes the shell assembly described in any one of the above items.

[0016] The gas water heater according to the embodiment of the present invention has at least the following beneficial effects: the gas water heater of the present invention is provided with a countersunk hole on the bottom shell, and the nut of the screw or bolt connecting the bottom shell and the surface shell is accommodated in the countersunk hole, thereby hiding the nut and the nut will not protrude from the surface of the bottom shell, and the edge of the countersunk hole is folded toward the inside of the bottom shell, thereby avoiding the risk of the edge of the countersunk hole and the screw scratching the hands during packaging or installation of the gas water heater.

[0017] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0019] Figure 1 This is a perspective exploded schematic diagram of a housing assembly according to an embodiment of the present invention;

[0020] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0021] Figure 3 for Figure 1 Enlarged view of point B in the middle;

[0022] Figure 4 for Figure 1 Enlarged view of point C in the middle;

[0023] Figure 5 This is a three-dimensional schematic diagram of a bracket of a housing assembly according to an embodiment of the present utility model;

[0024] Figure 6 This is a perspective exploded schematic diagram of a housing assembly according to an embodiment of the present invention from another perspective;

[0025] Figure 7 This is a three-dimensional schematic diagram of a housing assembly according to an embodiment of the present invention;

[0026] Figure 8 This is a three-dimensional schematic diagram of an air deflector of a housing assembly according to an embodiment of the present utility model;

[0027] Figure 9 This is a three-dimensional schematic diagram of an air deflector of a housing assembly according to an embodiment of the present invention, viewed from another direction;

[0028] Figure 10 for Figure 9 Enlarged view of point D in the middle.

[0029] Figure Number:

[0030] Housing assembly 10;

[0031] Bottom shell 100, bottom wall 110, side wall 120, first flange 121, cavity 122, countersunk hole 123, reserved hole 124, air inlet 125, first folded edge 126, hanging ear 130, support member 140, assembly hole 150, plug hole 160, protrusion 170;

[0032] The front shell 200, the panel 210, the side panel 220, the second flange 221, the plug-in unit 230, and the plug-in unit 240;

[0033] Air guide plate 300, cover plate 310, opening 311, avoidance hole 312, spoiler 320, spoiler hole 321, second folded edge 322;

[0034] Bracket 400 , through hole 410 , notch 420 , and flange hole 430 . DETAILED DESCRIPTION

[0035] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0036] In the description of the present invention, it should be understood that descriptions involving orientation, such as the orientation or positional relationship indicated by left, right, etc., are based on the orientation or positional relationship 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 cannot be understood as a limitation on the present invention.

[0037] In the description of this utility model, if there is a description of first and second, it is only for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0038] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0039] Reference Figure 1 、 Figure 2 、 Figure 3 、 Figure 6 The shell assembly 10 proposed in the embodiment of the present invention includes a bottom shell 100 and a surface shell 200. The bottom shell 100 has a bottom wall 110 and a side wall 120. The side wall 120 is arranged circumferentially along the bottom wall 110 and extends in a direction away from the bottom wall 110. The bottom wall 110 and the side wall 120 enclose a cavity 122. The cavity 122 is used to accommodate the main components of the gas water heater. A first flange 121 is provided at one end of the side wall 120 away from the bottom wall 110. The first flange 121 extends in the direction of the cavity 122, wherein two opposite first flanges 121 are provided with reserved holes 124, and the side wall 120 of the cavity 122 is provided with a countersunk hole 123. The recess of the countersunk hole 123 is located on the side close to the surface of the side wall 120, and the position of the countersunk hole 123 corresponds to the position of the reserved hole 124.

[0040] The housing 200 includes a panel 210 and side panels 220. The side panels 220 are arranged along the circumference of the panel 210 and extend away from the panel 210. A second flange 221 is provided at one end of the side panel 220 away from the panel 210. The second flange 221 is used to abut against the corresponding first flange 121. The housing 200 includes an insert 230. The insert 230 is used to be inserted into the reserved hole 124. The insert 230 is used to connect with a screw or bolt provided in the countersunk hole 123 to fix the housing 200 to the bottom housing 100, thereby enclosing the main body of the gas water heater within the cavity 122 through the housing 200. The countersunk hole 123 is used to accommodate the nut of the screw or bolt.

[0041] The utility model provides a countersunk hole 123 on the bottom shell 100, and the nut of the screw or bolt connecting the bottom shell 100 and the surface shell 200 is accommodated in the countersunk hole 123, thereby hiding the nut. The nut will not protrude from the surface of the bottom shell 100, and the edge of the countersunk hole 123 is folded toward the inside of the bottom shell 100, thereby avoiding the risk of scratching hands by the edge of the countersunk hole 123 and the screw during the packaging operation of the gas water heater.

[0042] Reference Figure 1 In the embodiment shown in the figure, the reserved holes 124 are set on two opposite first flanges 121 of the bottom shell 100 in the up-down direction, and correspondingly, the plug-in 230 is set on two opposite sides of the top shell 200 in the up-down direction.

[0043] It can be understood that in some embodiments, the reserved holes 124 are arranged on two opposite first flanges 121 of the bottom shell 100 along the left and right directions, and correspondingly, the plug-in 230 is arranged on two opposite sides of the surface shell 200 along the left and right directions, which is not limited here.

[0044] Reference Figure 1 、 Figure 6 The bottom shell 100 is provided with an air inlet 125. In the present embodiment, a plurality of air inlets 125 are provided. The plurality of air inlets 125 are in a strip shape, and the plurality of air inlets 125 are spaced apart on the bottom wall 110 of the bottom shell 100. A first folded edge 126 is provided around the air inlet 125. The first folded edge 126 is located on the side of the bottom wall 110 facing the cavity 122. The above-mentioned air inlet 125 structure can ensure sufficient air intake for the gas water heater to ensure full combustion of the gas water heater during use, and can also keep the back of the bottom shell 100 flat except for the boss, and avoid the risk of scratching hands by the edge of the air inlet 125.

[0045] It is understandable that, under the condition of ensuring sufficient air intake, the number of the air inlets 125 can be one or more, and is not limited here.

[0046] Reference Figure 6 、 Figure 7 、 Figure 8 、 Figure 9 In some embodiments, an air guide plate 300 is provided on the bottom shell 100. The air guide plate 300 is provided on the side of the bottom shell 100 away from the cavity 122. The air guide plate 300 is connected to the bottom shell 100, and the air guide plate 300 covers the top of the air inlet 125. There is a gap between the air guide plate 300 and the bottom shell 100. An opening 311 is provided between one side of the air guide plate 300 and the bottom shell 100. The opening 311 is used to provide air to the cavity 122 of the bottom shell 100 to provide oxygen required for combustion of the gas water heater. The other three sides of the air guide plate 300 are sealed from the bottom shell 100, thereby forming a cavity on the back of the bottom shell 100 at the air inlet 125, so that the level of the noise propagation medium becomes more complicated on the propagation path of noise from the inside of the gas water heater to the outside. The noise transmitted through the air inlet 125 needs to pass through the cavity and the air guide plate 300 to be transmitted to the outside of the gas water heater. Due to the change of the propagation medium, the noise is weakened during the propagation process, thereby weakening the noise transmitted from the air inlet 125 of the gas water heater, and then reducing the noise emitted by the gas water heater, thereby improving the noise condition of the gas water heater and enhancing the user experience.

[0047] Reference Figure 7 In this embodiment, the opening 311 is provided on the lower side of the air deflector 300. It is understandable that the opening 311 may also be provided on any one of the other three sides of the air deflector 300, which is not limited here.

[0048] Reference Figure 8 In some embodiments, the air deflector 300 includes a cover plate 310 and a spoiler 320. The spoiler 320 can be fixedly connected to the cover plate 310 by welding. The cover plate 310 is connected to the bottom shell 100 and is located above the air inlet 125. There is a gap between the cover plate 310 and the bottom shell 100. The bottom of the cover plate 310 is provided with an opening 311. The spoiler 320 is located on the side of the cover plate 310 facing the bottom shell 100. The spoiler 320 is provided with a plurality of spoiler holes 321. The spoiler holes 321 act as a muffler, reducing mechanical noise transmitted through the air inlet 125 and aerodynamic noise flowing through the cavity, thereby further improving the noise level of the gas water heater and enhancing the user experience.

[0049] In some embodiments, a second folded edge 322 is provided around the spoiler hole 321, and the second folded edge 322 extends toward the side close to the cover plate 310, thereby increasing the depth of the spoiler hole 321 and further increasing the volume of the spoiler hole 321, which is beneficial to reducing noise in multiple frequency bands and improving noise reduction efficiency.

[0050] Reference Figure 6 、 Figure 7In some embodiments, the upper end of the bottom housing 100 is provided with a hanging ear 130, and the lower end of the bottom housing 100 is provided with a support member 140. Both the hanging ear 130 and the support member 140 have mounting holes 150 for receiving fixings. The hanging ear 130 and the support member 140 can be used to mount the gas water heater on a wall.

[0051] Reference Figure 9 、 Figure 10 In some embodiments, a avoidance hole 312 is provided on the cover plate 310. When the air guide plate 300 is assembled to the bottom shell 100, the connection end of the hanging ear 130 passes through the avoidance hole 312 to prevent the air guide plate 300 from interfering with the installation of the gas water heater.

[0052] Reference Figure 1 、 Figure 6 In some embodiments, the first flanges 121 on the left and right sides of the bottom shell 100 are provided with plug-in holes 160, and the corresponding parts on the left and right sides of the face shell 200 are provided with plug-in parts 240. The plug-in parts 240 are used to be inserted into the plug-in holes 160. When assembling the bottom shell 100 and the face shell 200, the plug-in parts 240 are inserted into the plug-in holes 160, and the second flanges 221 abut against the corresponding first flanges 121. Through the cooperation of the plug-in parts 240 and the plug-in holes 160, the bottom shell 100 and the face shell 200 can be limited, and at the same time, it can be ensured that the gap between the bottom shell 100 and the face shell 200 is within a predetermined tolerance range during assembly.

[0053] Reference Figure 1 In some embodiments, a plurality of brackets 400 are installed inside the bottom shell 100. The plurality of brackets 400 are arranged at different positions of the bottom wall 110 of the bottom shell 100 and are fixedly connected to the bottom shell 100 by welding. The brackets 400 are used to fix the main body of the gas water heater. The brackets 400 are provided with a plurality of flanging holes 430. The flanging holes 430 are used for passing fixing parts for fixing the main body of the gas water heater. By providing a plurality of brackets 400 and the flanging holes 430 on the brackets 400, the shell assembly 10 of the present invention can be adapted to the main bodies of gas water heaters of different styles, thereby improving the applicability of the shell assembly 10 of the present invention in different types of gas water heaters.

[0054] Reference Figure 4 、 Figure 5 In some embodiments, a through hole 410 is provided at one end of the bracket 400, and a notch 420 is provided at the other end. A protrusion 170 is correspondingly provided on the inner wall of the bottom shell 100. The protrusion 170 is correspondingly penetrated through the through hole 410 and the notch 420 to position the bracket 400. In addition, by providing a through hole 410 at one end of the bracket 400 and a notch 420 at the other end, the problem of difficulty in assembling the bracket 400 caused by the design tolerance of the bracket 400 and the protrusion 170 can be avoided, thereby improving the assembly efficiency of the bracket 400.

[0055] The gas water heater provided in an embodiment of the present invention includes the housing assembly 10 described in any one of the above items. Since the housing assembly 10 used in the gas water heater of the present invention is provided with a countersunk hole 123 on the bottom shell 100, the nut of the screw or bolt connecting the bottom shell 100 and the top shell 200 is accommodated in the countersunk hole 123, thereby hiding the nut and preventing it from protruding from the surface of the bottom shell 100. In addition, the edge of the countersunk hole 123 is folded inwardly of the bottom shell 100, thereby avoiding the risk of scratching hands by the edge of the countersunk hole 123 and the screw during packaging of the gas water heater.

[0056] 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.

[0057] Of course, the present invention is not limited to the above-mentioned embodiments. Those skilled in the art may make equivalent modifications or substitutions without violating the spirit of the present invention. These equivalent modifications or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A housing assembly for a gas water heater, characterized in that: include: The bottom shell is provided with a cavity, the side wall of the cavity is provided with a first flange, the first flange is extended in the direction of the cavity, wherein two opposite first flanges are provided with reserved holes, the side wall of the cavity is provided with a countersunk hole, and the countersunk hole is provided corresponding to the reserved hole; A face shell is provided with a second flange on its periphery, the second flange is used to abut against the corresponding first flange, the face shell is provided with a plug-in, the plug-in is used to be inserted into the reserved hole, the plug-in is used to be connected with the screw or bolt passing through the countersunk hole to fix the face shell to the bottom shell, and the countersunk hole is used to accommodate the nut of the screw or the bolt.

2. The housing assembly according to claim 1, wherein: The bottom shell is provided with at least one air inlet, and a first folded edge is provided around the air inlet. The first folded edge is located on a side of the bottom shell facing the cavity.

3. The housing assembly according to claim 2, wherein: A wind guide plate is provided on the side of the bottom shell facing away from the cavity. The wind guide plate is connected to the bottom shell and is located above the air inlet. There is a gap between the wind guide plate and the bottom shell, and one side of the wind guide plate is provided with an opening.

4. The housing assembly according to claim 3, wherein: The air guide plate includes a cover plate and a spoiler plate. The cover plate is connected to the bottom shell. The spoiler plate is arranged on a side of the cover plate facing the bottom shell. The spoiler plate is provided with a plurality of spoiler holes.

5. The housing assembly according to claim 4, wherein: A second folded edge is provided around the spoiler hole, and the second folded edge extends toward a side close to the cover plate.

6. The housing assembly according to claim 4, wherein: A hanging ear is provided at the upper end of the bottom shell, and a avoidance hole for the hanging ear to pass through is provided on the cover plate.

7. The housing assembly according to claim 1, wherein: The other two opposite first flanges of the bottom shell are provided with plugging holes, and the corresponding parts of the surface shell are provided with plugging parts, and the plugging parts are used to be plugged into the plugging holes.

8. The housing assembly according to claim 1, wherein: A plurality of brackets are installed inside the bottom shell, and the brackets are used to fix the main body of the gas water heater.

9. The housing assembly according to claim 8, wherein: One end of the bracket is provided with a through hole, and the other end is provided with a notch. The inner wall of the bottom shell is correspondingly provided with a protrusion, and the protrusion is correspondingly penetrated through the through hole and the notch to position the bracket.

10. Gas water heater, characterized in that The invention comprises a housing assembly according to any one of claims 1 to 9.

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