Heating assembly of electric heating faucet

Abstract

The utility model provides a heating assembly of an electric heating faucet. The heating assembly comprises a shell assembly and an electric heating pipe. The shell assembly comprises an upper end cover, a lower end cover and a connecting cylinder made of metal materials. The lower end of the upper end cover and the upper end of the connecting cylinder are fixed and sealed in the circumferential direction. The upper end of the lower end cover and the lower end of the connecting cylinder are fixed and sealed in the circumferential direction. A heating cavity is defined by the upper end cover, the lower end cover and the connecting cylinder, the electric heating pipe is arranged in the heating cavity, a heating part of the electric heating pipe is located in the middle of the heating cavity, two wiring ends of the electric heating pipe extend out of the lower end cover from top to bottom, and the two wiring ends of the electric heating pipe and the lower end cover are fixed and sealed in the circumferential direction. When the electric heating faucet is in a dry burning condition, the electric heating faucet can be effectively prevented from being on fire and burning, and potential safety hazards are eliminated.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of electric water heater, specifically, an electric water heater heating assembly. BACKGROUND

[0002] Electric water heater has the advantages of fast hot water outlet speed and continuous hot water outlet, and more and more users begin to choose to use electric water heater; the current electric water heater mainly includes a shell assembly and an electric heating pipe; the shell assembly is internally provided with a heating cavity, the electric heating pipe is arranged in the heating cavity, and two wiring ends of the electric heating pipe are arranged outside the shell assembly from top to bottom and fixed and circumferentially sealed with the shell assembly; when water enters the heating cavity from the water inlet at the bottom of the shell assembly, the electric heating pipe can heat the water in the heating cavity, and the heated water can flow out through the water outlet at the top of the shell assembly, that is, the user's demand for hot water is met; however, in the existing electric water heater, the shell assembly at the position where the heating cavity is located is made of plastic material, when the electric heating pipe in the electric water heater is dry-burned due to failure or water shortage, the shell assembly near the heating part of the electric heating pipe will be heated and burned, thereby easily causing a fire and having a great safety hazard. SUMMARY

[0003] The utility model solves the technical problem to provide a kind of electric water heater heating assembly, it can effectively avoid the electric water heater to appear the case of fire combustion when the electric water heater appears dry-burning, eliminate safety hazard.

[0004] The utility model provides a kind of electric water heater heating assembly, including shell assembly and electric heating pipe;The shell assembly includes upper end cap, lower end cap and the connecting cylinder body made of metal material;The lower end of upper end cap is fixed and circumferentially sealed with the upper end of connecting cylinder body, and the upper end of lower end cap is fixed and circumferentially sealed with the lower end of connecting cylinder body;Upper end cap, lower end cap and connecting cylinder body surround heating cavity, and the electric heating pipe is arranged in the heating cavity, the heating part of electric heating pipe is located in the middle of heating cavity, and the two wiring ends of electric heating pipe are arranged outside lower end cap from top to bottom, and the two wiring ends of electric heating pipe are fixed and circumferentially sealed with lower end cap.

[0005] The utility model is provided with the connecting cylinder body made of metal material, even if the electric heating pipe in the electric water heater is dry-burned due to failure or water shortage, since the connecting cylinder body is adjacent to the heating part of the electric heating pipe, and the connecting cylinder body is made of metal material, the connecting cylinder body has the characteristics of high temperature resistance, thereby effectively avoiding the electric water heater to appear the case of fire combustion, and eliminating safety hazard.

[0006] In one possible embodiment, the lower end of the upper end cover is inserted into the upper end of the connecting cylinder, and a first sealing ring group is embedded on the outer wall of the lower end of the upper end cover, and the first sealing ring group is used to seal the gap between the upper end cover and the connecting cylinder; by adopting this structure, under the action of the first sealing ring group, after the lower end of the upper end cover is inserted into the upper end of the connecting cylinder, the first sealing ring group can reliably seal the gap between the upper end cover and the connecting cylinder to avoid water leakage between the upper end cover and the connecting cylinder; in addition, the above-mentioned first sealing ring group includes two first sealing rings spaced apart along the axial direction of the connecting cylinder, and the two first sealing rings are tightly sealed with the outer circumferential wall of the upper end cover and the inner circumferential wall of the connecting cylinder, so as to reliably achieve the sealing of the gap between the upper end cover and the connecting cylinder.

[0007] In a possible embodiment, a plurality of first screw holes distributed at circumferential intervals are provided on the side wall of the upper end of the connecting cylinder, and the connecting cylinder is fastened to the upper end cover by first screws passed through the first screw holes, and all the first screw holes are located above the first sealing ring group; by adopting this structure, the upper end cover can be reliably fixed to the upper end of the connecting cylinder by the first screws, and since all the first screw holes are located above the first sealing ring group, it is possible to avoid damaging the sealing structure between the upper end cover and the connecting cylinder.

[0008] In one possible embodiment, an annular ridge is provided on the outer wall of the upper end cover, and the upper end of the connecting cylinder abuts against the annular ridge; by adopting this structure, after the lower end of the upper end cover is inserted into the upper end of the connecting cylinder, the annular ridge can abut against the upper end of the connecting cylinder, thereby achieving a limiting effect on the upper end cover and the connecting cylinder, that is, it can facilitate the assembly of the upper end cover and the connecting cylinder, and can improve the reliability of the upper end cover and the connecting cylinder after assembly.

[0009] In one possible embodiment, the upper end of the lower end cover is inserted into the lower end of the connecting cylinder, and a second sealing ring group is embedded on the outer wall of the upper end of the lower end cover, and the second sealing ring group is used to seal the gap between the lower end cover and the connecting cylinder; by adopting this structure, under the action of the second sealing ring group, after the upper end of the lower end cover is inserted into the lower end of the connecting cylinder, the second sealing ring group can reliably seal the gap between the lower end cover and the connecting cylinder to avoid water leakage between the lower end cover and the connecting cylinder; in addition, the above-mentioned second sealing ring group includes two second sealing rings spaced apart along the axial direction of the connecting cylinder, and the two second sealing rings are tightly sealed with the outer circumferential wall of the lower end cover and the inner circumferential wall of the connecting cylinder, so as to reliably achieve the sealing of the gap between the lower end cover and the connecting cylinder.

[0010] In a possible implementation, a plurality of second screw holes are arranged on the side wall of the lower end of the connecting cylinder in a circumferential interval, the connecting cylinder is fastened with the lower end cover through second screws arranged in the second screw holes, and all the second screw holes are below the second sealing ring group; after adopting the structure, the lower end cover can be reliably fixed on the lower end of the connecting cylinder, and since all the second screw holes are below the second sealing ring group, the sealing structure between the lower end cover and the connecting cylinder can be avoided from being damaged.

[0011] In a possible implementation, a protrusion is arranged on the outer wall of the lower end cover, and the lower end of the connecting cylinder abuts against the protrusion; after adopting the structure, after the upper end of the lower end cover is inserted into the lower end of the connecting cylinder, the protrusion can abut against the lower end of the connecting cylinder, so that the limiting effect of the lower end cover on the connecting cylinder can be achieved, that is, the assembly of the lower end cover and the connecting cylinder can be facilitated, and the reliability of the lower end cover and the connecting cylinder after assembly can be improved.

[0012] In a possible implementation, the connecting cylinder is made of stainless steel material; after the connecting cylinder is made of stainless steel material, the connecting cylinder has the advantages of good high-temperature resistance and good water corrosion resistance, and the formation of scale on the inner wall of the connecting cylinder can be effectively avoided; in addition, the connecting cylinder can also be made of iron material, copper material, etc. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 is a schematic diagram of a three-dimensional structure of the utility model;

[0014] Figure 2 is a schematic diagram of a sectional structure of the utility model. DETAILED DESCRIPTION

[0015] First, those skilled in the art should understand that these implementations are only used to explain the technical principles of the embodiments of the present application, and are not intended to limit the protection scope of the embodiments of the present application. Those skilled in the art can adjust them as needed in order to adapt to specific application occasions.

[0016] In the description of the embodiments of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "connected", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the embodiments of the present application can be understood according to specific circumstances.

[0017] In the embodiments of the present application, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature 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 intermediate medium. Furthermore, a first feature being "above," "above," and "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0018] The present application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0019] See also Figure 1-2 As shown, the embodiment of the present application discloses an electric faucet heating assembly, including a shell assembly and an electric heating tube 1; the shell assembly includes an upper end cover 2, a lower end cover 3 and a connecting cylinder 4 made of metal material; the lower end of the upper end cover 2 is fixed to the upper end of the connecting cylinder 4 and circumferentially sealed, and the upper end of the lower end cover 3 is fixed to the lower end of the connecting cylinder 4 and circumferentially sealed; the upper end cover 2, the lower end cover 3 and the connecting cylinder 4 form a heating chamber 5, the electric heating tube 1 is arranged in the heating chamber 5, the heating part of the electric heating tube 1 is located in the middle of the heating chamber 5, the two terminal ends of the electric heating tube 1 extend from top to bottom outside the lower end cover 3, and the two terminal ends of the electric heating tube 1 are fixed to the lower end cover 3 and circumferentially sealed.

[0020] The lower end of the upper end cover 2 is inserted into the upper end of the connecting cylinder 4, and a first sealing ring group 6 is embedded on the outer wall of the lower end of the upper end cover 2, and the first sealing ring group 6 is used to seal the gap between the upper end cover 2 and the connecting cylinder 4; by adopting this structure, under the action of the first sealing ring group, after the lower end of the upper end cover is inserted into the upper end of the connecting cylinder, the first sealing ring group can reliably seal the gap between the upper end cover and the connecting cylinder to avoid water leakage between the upper end cover and the connecting cylinder; in addition, the above-mentioned first sealing ring group includes two first sealing rings spaced apart along the axial direction of the connecting cylinder, and the two first sealing rings are tightly sealed with the outer circumferential wall of the upper end cover and the inner circumferential wall of the connecting cylinder, so as to reliably achieve the sealing of the gap between the upper end cover and the connecting cylinder.

[0021] A plurality of first screw holes 41 are provided on the side wall of the upper end of the connecting cylinder 4 and are distributed at circumferential intervals. The connecting cylinder 4 is fastened to the upper end cover 2 by first screws passed through the first screw holes 41. All first screw holes 41 are located above the first sealing ring group 6. By adopting this structure, the upper end cover can be reliably fixed to the upper end of the connecting cylinder by the first screws, and since all the first screw holes are located above the first sealing ring group, it is possible to avoid damaging the sealing structure between the upper end cover and the connecting cylinder.

[0022] An annular convex edge 21 is provided on the outer wall of the upper end cover 2, and the upper end of the connecting cylinder 4 abuts against the annular convex edge 21; by adopting this structure, after the lower end of the upper end cover is inserted into the upper end of the connecting cylinder, the annular convex edge can abut against the upper end of the connecting cylinder, thereby achieving a limiting effect on the upper end cover and the connecting cylinder, that is, it can facilitate the assembly of the upper end cover and the connecting cylinder, and can improve the reliability of the upper end cover and the connecting cylinder after assembly.

[0023] The upper end of the lower end cover 3 is inserted into the lower end of the connecting cylinder 4, and a second sealing ring group 7 is embedded on the outer wall of the upper end of the lower end cover 3, and the second sealing ring group 7 is used to seal the gap between the lower end cover 3 and the connecting cylinder 4; by adopting this structure, under the action of the second sealing ring group, after the upper end of the lower end cover is inserted into the lower end of the connecting cylinder, the second sealing ring group can reliably seal the gap between the lower end cover and the connecting cylinder to avoid water leakage between the lower end cover and the connecting cylinder; in addition, the above-mentioned second sealing ring group includes two second sealing rings spaced apart along the axial direction of the connecting cylinder, and the two second sealing rings are tightly sealed with the outer circumferential wall of the lower end cover and the inner circumferential wall of the connecting cylinder, so as to reliably achieve the sealing of the gap between the lower end cover and the connecting cylinder.

[0024] A plurality of second screw holes 42 are provided on the side wall of the lower end of the connecting cylinder 4 and are distributed at circumferential intervals. The connecting cylinder 4 is fastened to the lower end cover 3 by second screws passed through the second screw holes 42. All second screw holes 42 are located below the second sealing ring group 7. By adopting this structure, the lower end cover can be reliably fixed to the lower end of the connecting cylinder by the second screws, and since all second screw holes are located below the second sealing ring group, it is possible to avoid damaging the sealing structure between the lower end cover and the connecting cylinder.

[0025] A protrusion 31 is provided on the outer wall of the lower end cover 3, and the lower end of the connecting cylinder 4 abuts against the protrusion 31; by adopting this structure, after the upper end of the lower end cover is inserted into the lower end of the connecting cylinder, the protrusion can abut against the lower end of the connecting cylinder, thereby achieving a limiting effect on the lower end cover and the connecting cylinder, that is, it can facilitate the assembly of the lower end cover and the connecting cylinder, and can improve the reliability of the lower end cover and the connecting cylinder after assembly.

[0026] The connecting cylinder 4 is made of stainless steel. The connecting cylinder has the advantages of good high temperature resistance and water corrosion resistance, and can effectively avoid the formation of scale on the inner wall of the connecting cylinder. In addition, the connecting cylinder can also be made of iron, copper, etc.

[0027] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present application should be included in the scope of protection of the present application. Therefore, the scope of protection of the present application should be based on the scope of protection of the claims.

Claims

1. An electric water faucet heating assembly, comprising a housing assembly and an electric heating tube (1); characterized in that: The shell assembly comprises an upper end cover (2), a lower end cover (3) and a connecting cylinder (4) made of metal material; the lower end of the upper end cover (2) is fixed to the upper end of the connecting cylinder (4) and is circumferentially sealed, and the upper end of the lower end cover (3) is fixed to the lower end of the connecting cylinder (4) and is circumferentially sealed; the upper end cover (2), the lower end cover (3) and the connecting cylinder (4) form a heating chamber (5), the electric heating tube (1) is arranged in the heating chamber (5), the heating part of the electric heating tube (1) is located in the middle of the heating chamber (5), the two terminal ends of the electric heating tube (1) extend from the lower end cover (3) from top to bottom, and the two terminal ends of the electric heating tube (1) are fixed to the lower end cover (3) and are circumferentially sealed.

2. The electric faucet heating assembly according to claim 1, characterized in that: The lower end of the upper end cover (2) is inserted into the upper end of the connecting cylinder (4), and a first sealing ring group (6) is embedded on the outer wall of the lower end of the upper end cover (2). The first sealing ring group (6) is used to seal the gap between the upper end cover (2) and the connecting cylinder (4).

3. The electric faucet heating assembly according to claim 2, characterized in that: A plurality of first screw holes (41) are provided on the side wall of the upper end of the connecting cylinder (4) and are distributed at intervals in the circumferential direction. The connecting cylinder (4) is fastened to the upper end cover (2) by first screws passing through the first screw holes (41). All the first screw holes (41) are located above the first sealing ring group (6).

4. The electric faucet heating assembly according to claim 2, characterized in that: An annular convex edge (21) is provided on the outer wall of the upper end cover (2), and the upper end of the connecting cylinder (4) abuts against the annular convex edge (21).

5. The electric faucet heating assembly according to claim 1, characterized in that: The upper end of the lower end cover (3) is inserted into the lower end of the connecting cylinder (4), and a second sealing ring group (7) is embedded on the outer wall of the upper end of the lower end cover (3). The second sealing ring group (7) is used to seal the gap between the lower end cover (3) and the connecting cylinder (4).

6. The electric faucet heating assembly according to claim 5, characterized in that: A plurality of second screw holes (42) are provided on the side wall of the lower end of the connecting cylinder (4) and are distributed at circumferential intervals. The connecting cylinder (4) is fastened to the lower end cover (3) by second screws passing through the second screw holes (42). All the second screw holes (42) are located below the second sealing ring group (7).

7. The electric faucet heating assembly according to claim 5, characterized in that: A protrusion (31) is provided on the outer wall of the lower end cover (3), and the lower end of the connecting cylinder (4) abuts against the protrusion (31).

8. The electric faucet heating assembly according to any one of claims 1 to 7, characterized in that: The connecting cylinder (4) is made of stainless steel.

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