Waterproof structure with annular groove and water heater

Abstract

The present invention discloses a waterproof structure and a water heater with an annular groove, which solves the problem of water easily entering between the hole structure and parts of existing household appliances. The waterproof structure includes: a sealing cover, which is installed at the hole structure position of the shell, and is provided with a mounting hole and a glue injection hole, and the mounting hole corresponds to the hole structure position; the sealing cover has a sealing surface facing the shell, and an annular groove is also provided on the sealing surface, and the annular groove is arranged around the mounting hole, and the glue injection hole is connected with the annular groove, and the annular groove and the shell surface form an annular flow channel, and the sealant injected from the glue injection hole is filled in the annular flow channel to form a sealing structure. The waterproof structure of the present invention effectively prevents external rain and snow water from entering the inner tank side from the mounting hole position, thereby improving the service life of the water heater.

Description

Technical Field

[0001] The invention relates to the technical field of water heaters, and in particular to a waterproof structure with an annular groove and a water heater. Background Art

[0002] Some existing household appliances (such as air-energy water heaters) have a small shell thickness, and it is impossible to set a threaded structure in the hole structure on the surface (such as water inlet and outlet, temperature sensing port, and working fluid port). Therefore, it is impossible to cooperate with the threaded connection of the parts. When the parts are assembled, they can only pass through the hole structure and be threadedly connected to the inner tank in the shell. Therefore, there must be a gap between the parts and the hole structure, which makes it easy for water to enter, so that external rain and snow water can easily enter the inner tank side, and then flow through the insulation foam, corrode the fins on the heat exchanger, and directly affect the service life of the water heater. Summary of the invention

[0003] The invention discloses a waterproof structure with an annular groove and a water heater, which solves the problem that water easily enters between the hole structure and parts of the existing household appliances.

[0004] According to one aspect of the present invention, a waterproof structure is disclosed, comprising: a sealing cover, the sealing cover is installed at a hole structure position of a shell, the sealing cover is provided with a mounting hole and a glue injection hole, the mounting hole corresponds to the hole structure position; the sealing cover has a sealing surface facing the shell, the sealing surface is also provided with an annular groove, the annular groove is arranged around the mounting hole, the glue injection hole is connected with the annular groove, the annular groove and the shell surface form an annular flow channel, the sealant injected from the glue injection hole is filled in the annular flow channel and forms a sealing structure.

[0005] Furthermore, at least a plurality of groups of the annular grooves are arranged on the sealing surface; along the direction from the mounting hole to the edge of the sealing cover, the plurality of groups of the annular grooves are spaced from inside to outside.

[0006] Furthermore, the annular groove includes a first annular groove and a second annular groove, and the first annular groove and the second annular groove are concentrically arranged; the first annular groove surrounds the outer circumference of the mounting hole, and the second annular groove surrounds the outer circumference of the first annular groove.

[0007] Furthermore, a plurality of first radial grooves are arranged on the sealing surface, the first radial grooves and the shell surface form a radial channel, the plurality of first radial grooves are arranged between the first annular groove and the second annular groove at intervals, and both ends of each first radial groove are respectively connected to the first annular groove and the second annular groove.

[0008] Furthermore, there are a plurality of the glue injection holes, and one glue injection hole is provided at the intersection of the first annular groove and the first radial groove.

[0009] Furthermore, a first glue overflow groove is provided between the first annular groove and the mounting hole, the first glue overflow groove and the shell surface form a first glue overflow space, and the first glue overflow groove is connected to the first annular groove through a first glue overflow channel.

[0010] Furthermore, the intersection of the first overflow glue channel and the first annular groove is located between two adjacent glue injection holes.

[0011] Furthermore, a first guide plate is provided in the first glue overflow groove, the first guide plate is located at the intersection of the first glue overflow groove and the first glue overflow channel, and the first guide plate is used to guide the sealant into the first glue overflow groove.

[0012] Furthermore, a second glue overflow groove is arranged on the outer periphery of the second annular groove, the second glue overflow groove and the shell surface enclose a second glue overflow space, and the second annular groove is connected to the second glue overflow groove through a second glue overflow channel.

[0013] Furthermore, the intersection of the second overflow glue channel and the second annular groove is located between two adjacent glue injection holes.

[0014] Furthermore, a second guide plate is provided in the second glue overflow groove, the second guide plate is located at the intersection of the second glue overflow groove and the second glue overflow channel, and the second guide plate is used to guide the sealant into the second glue overflow groove.

[0015] Furthermore, a glue inlet hole is also provided on the shell, and the glue inlet hole is communicated with the annular flow channel.

[0016] Furthermore, the shell surface is a curved surface, and the sealing surface of the sealing cover is configured as a curved surface matching the shell surface.

[0017] Furthermore, the mounting hole has an internal thread for threaded connection with a part.

[0018] According to a second aspect of the present invention, a water heater is disclosed, comprising the above-mentioned waterproof structure.

[0019] Furthermore, the water heater comprises an air energy water heater.

[0020] The waterproof structure of the present invention is provided with an annular groove on the sealing surface, and the annular groove is provided in a manner of surrounding the mounting hole so that the annular groove surrounds the mounting hole. After the sealing cover is installed on the shell, the annular groove and the shell surface form an annular flow channel, and the sealant injected from the injection hole fills the annular flow channel and forms a sealing structure, which is equivalent to isolating the area where the mounting hole is located from the external area through the sealing structure, thereby preventing the external sealing structure from being sealed with the circumference through the sealing structure, effectively preventing external rain and snow water from entering the inner tank side from the mounting hole position, and improving the service life of the water heater. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a schematic structural diagram of a waterproof structure according to an embodiment of the present invention;

[0022] Figure 2 yes Figure 1 A partial enlarged view of middle A;

[0023] Figure 3 is an assembly diagram of an embodiment of the present invention;

[0024] Legend: 11, sealing cover; 12, shell; 121, glue inlet hole; 21, mounting hole; 22, glue injection hole; 30, annular groove; 31, first annular groove; 32, second annular groove; 41, first radial groove; 42, second radial groove; 51, first glue overflow groove; 52, second glue overflow groove; 61, first glue overflow channel; 62, second glue overflow channel; 71, first guide plate; 72, second guide plate. DETAILED DESCRIPTION

[0025] The present invention will be further described below in conjunction with the embodiments, but is not limited to the contents of the description.

[0026] like Figures 1 to 3As shown, the present invention discloses a waterproof structure, including a sealing cover 11. The sealing cover 11 is installed at the hole structure position of the housing 12, and a mounting hole 21 and a glue injection hole 22 are provided on the sealing cover 11, and the mounting hole 21 corresponds to the hole structure position; the sealing cover 11 has a sealing surface facing the housing 12, and an annular groove 30 is also provided on the sealing surface, the annular groove 30 is arranged around the mounting hole 21, the glue injection hole 22 is connected with the annular groove 30, and the annular groove 30 and the surface of the housing 12 form an annular flow channel, and the sealant injected from the glue injection hole 22 is filled in the annular flow channel to form a sealing structure. The waterproof structure of the present invention is provided with an annular groove 30 on the sealing surface, and the annular groove 30 is provided in a manner of surrounding the mounting hole 21, so that the annular groove 30 surrounds the mounting hole 21. After the sealing cover 11 is installed on the shell 12, the annular groove 30 and the surface of the shell 12 form an annular flow channel, and the sealant injected from the injection hole 22 fills the annular flow channel and forms a sealing structure, which is equivalent to isolating the area where the mounting hole 21 is located from the external area through the sealing structure, thereby preventing the external sealing structure from being sealed with the circumference through the sealing structure, effectively preventing external rain and snow water from entering the inner tank side from the mounting hole 21, and improving the service life of the water heater.

[0027] In addition, unlike the traditional method, the sealant of the present invention is not directly set in the gap between the hole structure on the shell 12 and the parts, because this method will adhere the sealant to the surface of the parts. When the parts are maintained or replaced, the original sealant will be destroyed, which will cause trouble for maintenance. Moreover, it is necessary to re-apply the sealant after maintenance, which is very inconvenient. The annular groove 30 of the present invention surrounds the mounting hole 21, and there is a certain distance between the annular groove 30 and the mounting hole 21. The sealant injected into the injection hole 22 fills the annular flow channel and forms a sealing structure, which is equivalent to isolating the area where the mounting hole 21 is located from the external area through the sealing structure. Therefore, the sealant will not adhere to the parts, thereby making subsequent maintenance more convenient.

[0028] In the above embodiment, at least a plurality of annular grooves 30 are provided on the sealing surface; along the direction from the mounting hole 21 to the edge of the sealing cover 11, the plurality of annular grooves 30 are spaced from the inside to the outside. The waterproof structure of the present invention can play a multi-protective role by providing a plurality of annular grooves 30, thereby further improving the sealing effect.

[0029] In such Figure 1 In the embodiment of the present invention, the annular groove 30 includes a first annular groove 31 and a second annular groove 32, and the first annular groove 31 and the second annular groove 32 are concentrically arranged; the first annular groove 31 surrounds the outer periphery of the mounting hole 21, and the second annular groove 32 surrounds the outer periphery of the first annular groove 31. The waterproof structure of the present invention can play a multi-protective role by arranging the first annular groove 31 and the second annular groove 32, thereby further improving the sealing effect.

[0030] In this embodiment, a plurality of first radial grooves 41 are further provided on the sealing surface, and the first radial grooves 41 and the surface of the housing 12 form a radial channel, and the plurality of first radial grooves 41 are arranged at intervals between the first annular groove 31 and the second annular groove 32, and the two ends of each first radial groove 41 are respectively connected to the first annular groove 31 and the second annular groove 32. The waterproof structure of the present invention can make the first annular groove 31 and the second annular groove 32 connected through the first radial groove 41, so that the sealant can be evenly filled into the first annular groove 31 and the second annular groove 32, thereby improving the sealing effect.

[0031] In this embodiment, there are multiple glue injection holes 22, and one glue injection hole 22 is provided at the intersection of the first annular groove 31 and the first radial groove 41. The waterproof structure of the present invention provides one glue injection hole 22 at the intersection of the first annular groove 31 and the first radial groove 41, so that the sealant in the first annular groove 31 can be filled into the second annular groove 32 through the first radial groove 41, so that there is no need to open a hole in the second annular groove 32, and multiple glue injection holes 22 can ensure uniform glue injection and improve sealing performance.

[0032] In this embodiment, a first glue overflow groove 51 is provided between the first annular groove 31 and the mounting hole 21. The first glue overflow groove 51 and the surface of the housing 12 form a first glue overflow space. The first glue overflow groove 51 is connected to the first annular groove 31 through a first glue overflow channel 61. The waterproof structure of the present invention can allow excess sealant to enter the glue overflow groove by providing the first glue overflow groove 51, thereby preventing the sealing cover from being lifted up due to excessive sealant and the sealant from overflowing, thereby affecting reliability and aesthetics.

[0033] In this embodiment, the intersection of the first overflow glue channel 61 and the first annular groove 31 is located between two adjacent glue injection holes 22. The waterproof structure of the present invention, by setting the intersection of the first overflow glue channel 61 and the first annular groove 31 between two adjacent glue injection holes 22, allows the sealant to be fully filled and then flow into the first overflow glue groove 51 through the first overflow glue channel 61, effectively preventing the sealant from flowing out directly from the first overflow glue channel 61 after flowing into the glue injection hole 22, thereby avoiding waste.

[0034] In this embodiment, a first guide plate 71 is provided in the first glue overflow groove 51, and the first guide plate 71 is located at the intersection of the first glue overflow groove 51 and the first glue overflow channel 61, and the first guide plate 71 is used to guide the sealant to enter the first glue overflow groove 51. The waterproof structure of the present invention can divert and guide the sealant by providing the first guide plate 71, thereby preventing the sealant from overflowing the edge of the sealing cover to form a bulging sealant bulge, which seriously affects the aesthetics.

[0035] In this embodiment, a second overflow glue groove 52 is provided on the outer periphery of the second annular groove 32, the second overflow glue groove 52 and the surface of the housing 12 form a second overflow glue space, and the second annular groove 32 and the second overflow glue groove 52 are connected through a second overflow glue channel 62. The waterproof structure of the present invention can allow excess sealant to enter the overflow glue groove by providing the second overflow glue groove 52, thereby preventing the sealing cover from being lifted up due to excess sealant and the sealant from overflowing, thereby affecting reliability and aesthetics.

[0036] In this embodiment, the intersection of the second overflow glue channel 62 and the second annular groove 32 is located between two adjacent glue injection holes 22. The waterproof structure of the present invention, by setting the intersection of the second overflow glue channel 62 and the second annular groove 32 between two adjacent glue injection holes 22, allows the sealant to be fully filled and then flow into the second overflow glue groove 52 through the second overflow glue channel 62, effectively preventing the sealant from flowing directly out of the first overflow glue channel 61 after flowing into the glue injection hole 22, thereby avoiding waste.

[0037] In this embodiment, a second guide plate 72 is provided in the second glue overflow groove 52, and the second guide plate 72 is located at the intersection of the second glue overflow groove 52 and the second glue overflow channel 62, and the second guide plate 72 is used to guide the sealant into the second glue overflow groove 52. The waterproof structure of the present invention can divert and guide the sealant by providing the second guide plate 72, thereby preventing the sealant from overflowing the edge of the sealing cover to form a bulging sealant bulge, which seriously affects the aesthetics.

[0038] In this embodiment, a plurality of second radial grooves 42 are further provided between the first annular groove 31 and the second annular groove 32. The second radial grooves 42 and the surface of the housing 12 form a radial channel. A second radial groove 42 is provided between two adjacent first radial grooves 41. The two ends of each second radial groove 42 are respectively connected to the first annular groove 31 and the second annular groove 32. The waterproof structure of the present invention can make the sealant filling more uniform by providing the second radial grooves 42, thereby improving the sealing performance.

[0039] In this embodiment, a glue inlet hole 121 is further provided on the housing 12, and the glue inlet hole 121 is communicated with the annular flow channel. The waterproof structure of the present invention can allow the sealant in the annular channel to enter the housing 12 through the glue inlet hole by providing the glue inlet hole 121, thereby firmly bonding the inside of the housing 12 and the sealing cover 11, improving the reliability of the installation of the sealing cover 11 and preventing it from falling off.

[0040] In this embodiment, the surface of the housing 12 is an arc surface, and the sealing surface of the sealing cover 11 is set to be an arc surface matching the surface of the housing 12. The waterproof structure of the present invention can improve the matching degree by setting the sealing surface as an arc surface, so that the sealant filling can make it more reliably sealed.

[0041] In this embodiment, the mounting hole 21 has an internal thread for threaded connection with a part. The waterproof structure of the present invention can thread the part with the mounting hole 21 by providing an internal thread in the mounting hole 21, making it easier to disassemble when replacing the part, and more secure and reliable after installation.

[0042] According to a second aspect of the present invention, a water heater is disclosed, comprising the above-mentioned waterproof structure.

[0043] In this embodiment, the water heater includes an air energy water heater.

[0044] Obviously, the above-mentioned embodiments of the present invention are merely examples for clearly explaining the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is impossible to list all the embodiments here. Any obvious changes or modifications derived from the technical solution of the present invention are still within the scope of protection of the present invention.

Claims

1. A waterproof structure, characterized in that: include: A sealing cover (11), the sealing cover (11) being mounted at a hole structure position of the housing (12), the sealing cover (11) being provided with a mounting hole (21) and a glue injection hole (22), the mounting hole (21) corresponding to the hole structure position; The sealing cover (11) has a sealing surface facing the housing (12), and an annular groove (30) is also provided on the sealing surface. The annular groove (30) is arranged around the mounting hole (21), and the glue injection hole (22) is connected to the annular groove (30). The annular groove (30) and the surface of the housing (12) form an annular flow channel, and the sealant injected from the glue injection hole (22) fills the annular flow channel to form a sealing structure; The annular groove (30) comprises a first annular groove (31) and a second annular groove (32), wherein the first annular groove (31) and the second annular groove (32) are concentrically arranged; the first annular groove (31) surrounds the outer circumference of the mounting hole (21), and the second annular groove (32) surrounds the outer circumference of the first annular groove (31); A first glue overflow groove (51) is provided between the first annular groove (31) and the mounting hole (21); the first glue overflow groove (51) and the surface of the housing (12) form a first glue overflow space; the first glue overflow groove (51) and the first annular groove (31) are connected via a first glue overflow channel (61); A first guide plate (71) is arranged in the first glue overflow groove (51), the first guide plate (71) is located at the intersection of the first glue overflow groove (51) and the first glue overflow channel (61), and the first guide plate (71) is used to guide the sealant to enter the first glue overflow groove (51); A second glue overflow groove (52) is arranged on the outer periphery of the second annular groove (32), the second glue overflow groove (52) and the surface of the shell (12) enclose a second glue overflow space, and the second annular groove (32) and the second glue overflow groove (52) are connected through a second glue overflow channel (62); A second guide plate (72) is arranged in the second glue overflow groove (52), and the second guide plate (72) is located at the intersection of the second glue overflow groove (52) and the second glue overflow channel (62). The second guide plate (72) is used to guide the sealant to enter the second glue overflow groove (52).

2. The waterproof structure according to claim 1, characterized in that: At least a plurality of groups of annular grooves (30) are arranged on the sealing surface; along the direction from the mounting hole (21) to the edge of the sealing cover (11), the plurality of groups of annular grooves (30) are spaced and sleeved from the inside to the outside.

3. The waterproof structure according to claim 1, characterized in that: A plurality of first radial grooves (41) are also provided on the sealing surface. The first radial grooves (41) and the surface of the housing (12) form a radial channel. The plurality of first radial grooves (41) are arranged at intervals between the first annular groove (31) and the second annular groove (32). Two ends of each first radial groove (41) are respectively connected to the first annular groove (31) and the second annular groove (32).

4. The waterproof structure according to claim 3, characterized in that: There are a plurality of the glue injection holes (22), and one glue injection hole (22) is provided at the intersection of the first annular groove (31) and the first radial groove (41).

5. The waterproof structure according to claim 1, characterized in that: The intersection of the first overflow glue channel (61) and the first annular groove (31) is located between two adjacent glue injection holes (22).

6. The waterproof structure according to claim 1, characterized in that: The intersection of the second glue overflow channel (62) and the second annular groove (32) is located between two adjacent glue injection holes (22).

7. The waterproof structure according to claim 1, characterized in that: The shell (12) is also provided with a glue inlet hole (121), and the glue inlet hole (121) is communicated with the annular flow channel.

8. The waterproof structure according to claim 1, characterized in that: The surface of the shell (12) is a curved surface, and the sealing surface of the sealing cover (11) is arranged as a curved surface matching the surface of the shell (12).

9. The waterproof structure according to claim 1, characterized in that: The mounting hole (21) has an internal thread for threaded connection with a part.

10. A water heater, characterized in that: A waterproof structure comprising the waterproof structure described in any one of claims 1 to 9.

11. The water heater according to claim 10, characterized in that The water heater comprises an air energy water heater.

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