CN216897843U - Water heater - Google Patents

Abstract

The utility model discloses a water heater, which comprises: a housing; the water pipe assembly, the water pipe assembly sets up in the casing and at least partially stretches into inside the casing, and the water pipe assembly includes: interior water pipe and outer water pipe, outer water pipe cover establish in the outside of water pipe, inject the first runner with the inside intercommunication of casing in the interior water pipe, inject the second runner with the inside intercommunication of casing between interior water pipe and the outer water pipe. Therefore, the water pipe assembly is arranged on the water heater, water can be conveyed into the shell through one of the first flow channel and the second flow channel, the water in the shell can be output from the shell through the other one of the first flow channel and the second flow channel, and compared with the prior art, the number of water pipe connectors on the shell can be reduced, so that the processing procedures of the shell can be reduced, and the production efficiency of the water heater can be improved.

Description

Water heater

Technical Field

The utility model relates to the field of domestic appliances, in particular to a water heater.

Background

The water heater may heat cold water by adding cold water thereto, and may be used to store heated hot water therein, and may provide the stored hot water to a user when the user needs to use the hot water.

In the related art, in order to move cold water into the water heater and to move hot water out of the water heater, two water connectors are provided on a housing of the water heater, wherein one water connector is used for connecting with an outlet pipe, hot water in the water heater can flow out of the water heater through the outlet pipe, and the other water connector is used for connecting with an inlet pipe, and cold water can be supplemented into the water heater through the inlet pipe. Because the welding process between water pipe head and the casing is loaded down with trivial details, and need set up two water pipe head simultaneously on the current casing, can influence the production efficiency of water heater.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art. Therefore, an object of the present invention is to provide a water heater, which can reduce the number of water pipe joints on the housing, thereby reducing the number of processing steps of the housing and further improving the production efficiency of the water heater.

The water heater according to the present invention comprises: a housing; a water tube assembly disposed in the housing and at least partially extending into the interior of the housing, the water tube assembly including: interior water pipe and outer water pipe, outer water pipe box is established the outside of interior water pipe, interior water pipe in inject with the first runner of the inside intercommunication of casing, interior water pipe with inject between the outer water pipe with the second runner of the inside intercommunication of casing.

According to the water heater, the water pipe assembly is arranged on the water heater, water can be conveyed into the shell through one of the first flow passage and the second flow passage, and water in the shell can be output from the shell through the other of the first flow passage and the second flow passage.

In some examples of the present invention, a plurality of first sealing structures are disposed between the end of the inner water tube and the end of the outer water tube, and the plurality of first sealing structures are used for sealing a gap between the inner water tube and the outer water tube.

In some examples of the present invention, the inner water pipe and/or the outer water pipe is provided with a first seal installation groove for installing the first seal structure.

In some examples of the present invention, the first seal installation groove is a plurality of first seal installation grooves, and a plurality of the first seal installation grooves correspond to a plurality of the first seal structures one to one.

In some examples of the present invention, a plurality of the first seal installation grooves and a plurality of the first seal structures are spaced apart in an axial direction of the water pipe assembly.

In some examples of the present invention, the first seal mounting groove is configured as an annular groove and the first seal structure is configured as a seal ring.

In some examples of the present invention, a surface of the inner water pipe opposite to the outer water pipe is provided with the first seal installation groove.

In some examples of the present invention, a plurality of the first sealing structures are provided between the lower end portion of the inner water pipe and the lower end portion of the outer water pipe.

In some examples of the utility model, the water tube assembly further comprises: the pipeline joint is sleeved on the end part of the shell, close to the inner water pipe, the outer water pipe is sleeved on the outer side of the pipeline joint, and the pipeline joint is provided with a joint flow passage communicated with the first flow passage and the inside of the shell.

In some examples of the present invention, a plurality of second sealing structures are disposed between the inner water pipe and the pipe joint, and the plurality of second sealing structures are used for sealing a gap between the inner water pipe and the pipe joint.

In some examples of the present invention, the inner water pipe and/or the pipe joint is provided with a second seal installation groove for installing the second seal structure.

In some examples of the present invention, the number of the second seal installation grooves is plural, and the plural second seal installation grooves correspond to plural second seal structures one to one.

In some examples of the present invention, the inner water tube is symmetrical about a center line of the inner water tube in an axial direction of the inner water tube.

In some examples of the utility model, the water heater further comprises: prevent electric wall pipeline, prevent that electric wall pipeline has inlet and liquid outlet, the inlet with second runner intercommunication, the liquid outlet be suitable for with first runner intercommunication.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is an exploded view of a water heater according to an embodiment of the present invention;

FIG. 2 is an exploded view of a portion of a water heater according to an embodiment of the present invention;

FIG. 3 is a cross-sectional view of a portion of a water heater according to an embodiment of the present invention;

FIG. 4 is an enlarged schematic view at A in FIG. 3;

FIG. 5 is an enlarged schematic view at B in FIG. 3;

FIG. 6 is a schematic diagram of a water tube assembly connected to an electricity wall circuit according to an embodiment of the present invention;

figure 7 is an exploded view of the structure of the part of the electricity-proof wall pipeline according to the embodiment of the utility model.

Reference numerals:

a water heater 100;

a housing 10; a water pipe joint 101;

electricity-proof wall piping 30; a liquid inlet 302; a liquid outlet 303; a third flow channel 304; a fourth flow channel 305; a water inlet pipe 306; a water outlet pipe 307; a connecting pipe 308;

a water tube assembly 50; an inner water pipe 501; an outer water tube 502; a first flow path 503; a second flow channel 504; a flow-through hole 505; a first seal structure 506; a first seal mounting groove 507; a line connection 508; a connector flow passage 509; a second seal structure 510; a second seal installation groove 511; an extension tube 512; a reinforcing tube 530; a liquid outlet hole 531.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

A water heater 100 according to an embodiment of the present invention is described below with reference to fig. 1-7.

As shown in fig. 1 to 7, a water heater 100 according to an embodiment of the present invention includes: a housing 10 and a water pipe assembly 50. The water pipe assembly 50 is disposed in the housing 10 and at least partially protrudes into the interior of the housing 10, and the water pipe assembly 50 includes: interior water pipe 501 and outer water pipe 502, outer water pipe 502 cover are established in the outside of interior water pipe 501, inject the first runner 503 with the inside intercommunication of casing 10 in interior water pipe 501, inject the second runner 504 with the inside intercommunication of casing 10 between interior water pipe 501 and the outer water pipe 502.

Among them, the water heater 100 may be used to heat cold water into hot water, and the water heater 100 may store the hot water, and when a user needs to use the hot water, the water heater 100 may provide the hot water to the user. Specifically, the housing 10 may define a sealed water storage chamber, which may store water, and in which the water may be heated, as noted. The specific heating mode of water in the water storage cavity can be as follows: the water heater 100 may heat water in the water storage chamber by collecting solar energy, thereby heating the water in the water storage chamber. For example, the water heater 100 may also convert electrical energy into heat energy, and the heat energy may be used to heat the water in the water storage chamber, thereby heating the water in the water storage chamber.

When the temperature of the hot water in the water storage cavity is higher than the preset use temperature of the user, the heated water in the water storage cavity can be mixed with the cold water, so that the water heater 100 can provide warm water with appropriate temperature for the user according to the preset water temperature of the user. It should be noted that the hot water, the warm water and the cold water mentioned in the present invention only represent the relative relationship of the water temperatures, and the water temperatures of the hot water, the warm water and the cold water are not related to the specific temperature, that is, the water temperature of the hot water is equal to or higher than the water temperature of the warm water, and the water temperature of the hot water is greater than the water temperature of the cold water, and the water temperature of the warm water is equal to or higher than the water temperature of the cold water.

Further, a water pipe connector 101 may be disposed on the housing 10, the water pipe connector 101 may communicate with the water storage cavity and the external environment, at least a part of the structure of the water pipe assembly 50 may penetrate through the water pipe connector 101 and then extend into the housing 10, a part of the structure of the water pipe assembly 50 disposed inside the housing 10 may communicate with the water storage cavity, and a part of the structure of the water pipe assembly 50 disposed outside the housing 10 may communicate with the external environment. The water heater 100 can remove water from the water storage chamber through the water tube assembly 50 or replenish water in the water storage chamber through the water tube assembly 50.

Further, as shown in fig. 3 to 5, the water tube assembly 50 includes a first flow passage 503 defined by the inner water tube 501 and a second flow passage 504 defined between the inner water tube 501 and the outer water tube 502, the water tube assembly 50 may supply hot water to the outside of the water heater 100 through one of the first flow passage 503 and the second flow passage 504, the water tube assembly 50 may supply cold water to the inside of the water heater 100 through the other of the first flow passage 503 and the second flow passage 504, and preferably, the water tube assembly 50 may supply hot water to the outside of the water heater 100 through the first flow passage 503 and the water tube assembly 50 may supply cold water to the inside of the water heater 100 through the second flow passage 504.

As shown in fig. 2, the outer water pipe 502 may separate water in the water storage chamber from the second flow passage 504, and at least one circulation hole 505 may be provided on the outer water pipe 502, the circulation hole 505 may communicate the water storage chamber with the second flow passage 504, and cold water in the second flow passage 504 may flow into the water storage chamber through the circulation hole 505. Moreover, the internal water pipe 501 may separate the first flow channel 503 and the second flow channel 504, that is, the internal water pipe 501 may prevent cold water flowing in the second flow channel 504 from mixing with hot water flowing in the first flow channel 503, so as to ensure that the temperature of water supplied by the water heater 100 meets the requirement of a user.

Because the water pipe assembly 50 can meet the design requirements of the water heater 100 for cold water to flow into the water storage cavity and hot water to flow out of the water storage cavity at the same time, only one water pipe joint 101 needs to be arranged on the shell 10, compared with the prior art, the number of the water pipe joints 101 required to be arranged on the shell 10 of the utility model is less than that of the water pipe joints 101 arranged in the prior art, the welding procedures of the shell 10 in the processing process can be reduced, the production efficiency of the water heater 100 can be improved, and the production cost of the water heater 100 can be further reduced.

Therefore, by providing the water pipe assembly 50 on the water heater 100, water can be delivered into the housing 10 through one of the first flow passage 503 and the second flow passage 504, and water in the housing 10 can be output from the housing 10 through the other of the first flow passage 503 and the second flow passage 504, compared with the prior art, the number of the water pipe joints 101 on the housing 10 can be reduced, so that the number of processing steps of the housing 10 can be reduced, and the production efficiency of the water heater 100 can be improved.

In some embodiments of the present invention, as shown in fig. 3 and 5, a plurality of first sealing structures 506 may be disposed between the end of the outer water pipe 502 and the end of the inner water pipe 501, and the plurality of first sealing structures 506 may be used to seal a gap between the inner water pipe 501 and the outer water pipe 502. Each first sealing structure 506 can be used for sealing a gap between the inner water pipe 501 and the outer water pipe 502, the first sealing structure 506 can prevent the first flow passage 503 and the second flow passage 504 from being connected in series, specifically, the first sealing structure 506 can prevent hot water in the first flow passage 503 from flowing into the second flow passage 504, and can prevent hot water in the first flow passage 503 from being mixed with cold water in the second flow passage 504, so that the flow rate of the hot water in the first flow passage 503 can be prevented from being reduced. The first sealing structure 506 may also prevent the hot water in the second flow passage 504 from flowing into the first flow passage 503, may prevent the hot water in the first flow passage 503 from mixing with the cold water of the second flow passage 504, may prevent the temperature of the hot water in the first flow passage 503 from decreasing, and may also prevent the water in the second flow passage 504 from flowing out from the gap between the inner water pipe 501 and the outer water pipe 502, and may prevent the water pipe assembly 50 from leaking water.

Further, as shown in fig. 2, 3, and 5, the outer water pipe 502 and/or the inner water pipe 501 may be provided with a first seal installation groove 507, and the first seal installation groove 507 may be used to install the first seal structure 506. Wherein, first seal mounting groove 507 can set up in outer water pipe 502, and first seal mounting groove 507 can set up in outer water pipe 502 with the relative surface of interior water pipe 501, outer water pipe 502 with the relative surface of interior water pipe 501 can indicate outer water pipe 502's internal wall face, partial structure of first seal structure 506 can stretch into in the first seal mounting groove 507 on outer water pipe 502 to make first seal structure 506 be connected with first seal mounting groove 507.

The first sealing installation groove 507 may also be disposed in the inner water pipe 501, the first sealing installation groove 507 may be disposed on a surface of the inner water pipe 501 opposite to the outer water pipe 502, the surface of the inner water pipe 501 opposite to the outer water pipe 502 may refer to an outer wall surface of the inner water pipe 501, and a partial structure of the first sealing structure 506 may extend into the first sealing installation groove 507 on the inner water pipe 501, so that the first sealing structure 506 is connected with the first sealing installation groove 507.

First seal mounting groove 507 also can set up in interior water pipe 501 and outer water pipe 502 simultaneously, and first seal mounting groove 507 can set up in the outer wall surface of interior water pipe 501, and first seal mounting groove 507 also can set up in the internal wall surface of outer water pipe 502, and first seal structure 506 can stretch into first seal mounting groove 507 on interior water pipe 501 and the first seal mounting groove 507 of outer water pipe 502 simultaneously to make first seal structure 506 be connected with first seal mounting groove 507.

Further, as shown in fig. 2, 3, and 5, a plurality of first seal installation grooves 507 may be provided, and a plurality of first seal structures 506 and the plurality of first seal installation grooves 507 may be provided in one-to-one correspondence. Wherein. By providing a plurality of first seal installation grooves 507, the plurality of first seal structures 506 can be respectively installed in the first seal installation grooves 507, and the plurality of first seal structures 506 can be matched with the first seal installation grooves 507 to enable the sealing performance between the end portion of the outer water pipe 502 and the end portion of the inner water pipe 501 to be better, so that the series flow of the first flow passage 503 and the second flow passage 504 between the end portion of the outer water pipe 502 and the end portion of the inner water pipe 501 can be avoided.

Further, as shown in fig. 2, 3, and 5, a plurality of first seal structures 506 and a plurality of first seal installation grooves 507 may be provided at intervals in the axial direction of the water pipe assembly 50. Wherein, the axial direction of the water pipe assembly 50 may refer to the up-down direction in fig. 3, preferably, as shown in fig. 5, the first sealing structures 506 may be disposed in two ways in the water pipe assembly 50, the two ways of the first sealing structures 506 are spaced apart in the axial direction of the water pipe assembly 50, the outer water pipe 502 and/or the inner water pipe 501 may be correspondingly provided with two first sealing installation grooves 507, and the two ways of the first sealing structures 506 may be respectively installed in the two first sealing installation grooves 507. The two first seal installation grooves 507 may be spaced apart in the axial direction of the water pipe assembly 50.

By disposing the plurality of first seal structures 506 at intervals along the axial direction of the water tube assembly 50, when the inner water tube 501 is installed in the outer water tube 502, the hot water in the first flow passage 503 and the cold water in the second flow passage 504 can be separated on both sides of the first seal structure 506 in the axial direction of the water tube assembly 50, the plurality of first seal structures 506 can prevent the hot water in the first flow passage 503 from flowing into the second flow passage 504 along the axial direction of the water tube assembly 50, and the plurality of first seal structures 506 can also prevent the cold water in the second flow passage 504 from flowing into the first flow passage 503 along the axial direction of the water tube assembly 50, so that the first flow passage 503 can be prevented from communicating with the second flow passage 504.

Alternatively, as shown in fig. 2, 3, and 5, the first sealing structure 506 may be configured as a sealing ring, and the first sealing installation groove 507 may be configured as an annular groove. When the first sealing installation groove 507 is configured as an annular groove, the first sealing installation groove 507 may extend in the circumferential direction of the outer water pipe 502 and/or the inner water pipe 501, when the sealing ring is installed in the annular groove, the sealing ring may protrude from the surface of the outer water pipe 502 and/or the inner water pipe 501, in the assembly process of the water pipe assembly 50, when the inner water pipe 501 extends into the outer water pipe 502, the outer water pipe 502 and the inner water pipe 501 may jointly press the first sealing structure 506, and the first sealing structure 506 may seal the gap between the outer water pipe 502 and the inner water pipe 501 after being pressed, so that the first flow passage 503 may be prevented from being communicated with the second flow passage 504.

Alternatively, as shown in fig. 2, 3, and 5, the surface of the inner water pipe 501 opposite to the outer water pipe 502 may be provided with a first sealing installation groove 507, that is, the first sealing installation groove 507 may be disposed on the outer wall surface of the inner water pipe 501, and compared with the case that the first sealing installation groove 507 is disposed on the inner wall surface of the outer water pipe 502, the difficulty in processing the first sealing installation groove 507 may be reduced by disposing the first sealing installation groove 507 on the outer wall surface of the inner water pipe 501, and the difficulty in assembling the water pipe assembly 50 may also be reduced by disposing the first sealing installation groove 507 on the outer wall surface of the inner water pipe 501, so that the assembling efficiency of the water heater 100 may be further improved.

In some embodiments of the present invention, as shown in fig. 2, 3 and 5, a plurality of first sealing structures 506 may be disposed between the lower end portion of the outer water pipe 502 and the lower end portion of the inner water pipe 501. The vertical direction of the outer water pipe 502 and the vertical direction of the inner water pipe 501 may both refer to the vertical direction of fig. 3, and the matching of the plurality of first sealing structures 506 and the first sealing installation grooves 507 can improve the sealing performance between the lower end of the outer water pipe 502 and the lower end of the inner water pipe 501, so that the series flow of the first flow channel 503 and the second flow channel 504 between the lower end of the outer water pipe 502 and the lower end of the inner water pipe 501 can be avoided.

In some embodiments of the present invention, as shown in fig. 2-4, the water tube assembly 50 may further include: the pipe joint 508, the pipe joint 508 may be sleeved on the end of the inner water pipe 501 close to the shell 10, as shown in fig. 3, the end of the inner water pipe 501 close to the shell 10 may refer to the upper end of the inner water pipe 501 in fig. 3. The outer water pipe 502 may be sleeved outside the pipe joint 508, the pipe joint 508 may have a joint flow passage 509, and the joint flow passage 509 may communicate the first flow passage 503 with the inside of the housing 10.

As shown in fig. 4, the water pipe assembly 50 may further include: extension pipe 512, inner water pipe 501 and extension pipe 512 may be extended in the vertical direction in fig. 3, extension pipe 512 may be disposed above inner water pipe 501 in the height direction of water heater 100, inner water pipe 501 may communicate with extension pipe 512, and extension pipe 512 may extend the flow length of first flow channel 503. The pipe joint 508 can be disposed between the inner water pipe 501 and the extension pipe 512, the lower end of the pipe joint 508 is sleeved on the outer side of the inner water pipe 501, the pipe joint 508 can be connected with the upper end of the inner water pipe 501, the upper end of the pipe joint 508 is sleeved on the outer side of the extension pipe 512, the pipe joint 508 can be connected with the lower end of the extension pipe 512, the extension pipe can be communicated with the inside of the housing 10, the joint flow passage 509 can be communicated with the inner water pipe 501 and the extension pipe 512, so that the first flow passage 503 is communicated with the inside of the housing 10, hot water in the water storage cavity can flow into the first flow passage 503 after passing through the extension pipe 512 and the pipe joint 508 in sequence, and the hot water in the water storage cavity can be removed.

Meanwhile, the outer water pipe 502 is sleeved outside the pipe joint 508, the pipe joint 508 can be matched with the outer water pipe 502 in an inserting manner, so that the pipe joint 508 can be reliably installed on the outer water pipe 502, and when the pipe joint 508 is installed on the outer water pipe 502, the pipe joint 508 can fix the upper end of the inner water pipe 501 in the outer water pipe 502, the upper end of the inner water pipe 501 can be prevented from moving relative to the outer water pipe 502, and the sealing effect between the first flow passage 503 and the second flow passage 504 caused by bending of the inner water pipe 501 can be prevented from being poor.

In some embodiments of the present invention, as shown in fig. 2 to 4, a plurality of second sealing structures 510 may be disposed between the pipe joint 508 and the inner water pipe 501, and the plurality of second sealing structures 510 may be used to seal a gap between the pipe joint 508 and the inner water pipe 501. In a specific embodiment of the present invention, a plurality of second sealing structures 510 may be disposed between the upper end of the inner water pipe 501 and the lower end of the pipe joint 508. Each second sealing structure 510 can be used for sealing a gap between the inner water pipe 501 and the pipe joint 508, and the second sealing structure 510 can prevent the first flow passage 503 and the second flow passage 504 from being connected in series.

Specifically, the first sealing structure 506 can prevent the hot water in the first flow passage 503 from flowing into the second flow passage 504 from the gap between the inner water pipe 501 and the pipe joint 508, can prevent the hot water in the first flow passage 503 from mixing with the cold water of the second flow passage 504, and can thereby prevent the flow rate of the hot water in the first flow passage 503 from being reduced. The first sealing structure 506 can also prevent the hot water in the second flow passage 504 from flowing into the first flow passage 503 from the gap between the inner water pipe 501 and the pipe joint 508, and can prevent the hot water in the first flow passage 503 from mixing with the cold water in the second flow passage 504, thereby preventing the temperature of the hot water in the first flow passage 503 from being lowered.

Further, as shown in fig. 2 to 4, the pipe joint 508 and/or the inner water pipe 501 may be provided with a second sealing installation groove 511, and the second sealing installation groove 511 may be used to install the second sealing structure 510. The second sealing installation groove 511 may be disposed on the pipe joint 508, the second sealing installation groove 511 may be disposed on a surface of the pipe joint 508 opposite to the inner water pipe 501, the surface of the pipe joint 508 opposite to the inner water pipe 501 may refer to an inner wall surface of the pipe joint 508, and the second sealing structure 510 may extend into the second sealing installation groove 511 on the pipe joint 508, so that the second sealing structure 510 is connected to the second sealing installation groove 511.

The second sealing installation groove 511 may also be disposed in the inner water pipe 501, the second sealing installation groove 511 may be disposed on a surface of the inner water pipe 501 opposite to the pipe joint 508, the surface of the inner water pipe 501 opposite to the pipe joint 508 may refer to an outer wall surface of the inner water pipe 501, and the second sealing structure 510 may extend into the second sealing installation groove 511 on the inner water pipe 501, so that the second sealing structure 510 is connected to the second sealing installation groove 511.

The second sealing installation groove 511 may be also simultaneously disposed on the pipeline joint 508 and the inner water pipe 501, the second sealing installation groove 511 may be disposed on an outer wall surface of the inner water pipe 501, the first sealing installation groove 507 may also be disposed on an inner wall surface of the pipeline joint 508, and the second sealing structure 510 may simultaneously extend into the second sealing installation groove 511 on the inner water pipe 501 and the second sealing installation groove 511 of the pipeline joint 508, so that the second sealing structure 510 is connected with the second sealing installation groove 511.

Further, as shown in fig. 2 to 4, the second seal installation groove 511 may be provided in plurality, and the plurality of second seal structures 510 and the plurality of second seal installation grooves 511 may be provided in one-to-one correspondence. Wherein. By providing a plurality of second seal installation grooves 511, the plurality of second seal structures 510 may be respectively installed in the second seal installation grooves 511, and the plurality of second seal structures 510 and the second seal installation grooves 511 cooperate to make the sealing performance between the end of the pipe joint 508 and the end of the inner water pipe 501 better, so that the first flow channel 503 and the second flow channel 504 may be prevented from communicating between the end of the pipe joint 508 and the end of the inner water pipe 501.

Further, as shown in fig. 2 to 4, a plurality of second seal structures 510 and a plurality of second seal installation grooves 511 may be provided at intervals in the axial direction of the water pipe assembly 50. Preferably, as shown in fig. 4, the second sealing structure 510 may be provided in two in the water pipe assembly 50, the two second sealing structures 510 are spaced apart in the axial direction of the water pipe assembly 50, the pipe joint 508 and/or the inner water pipe 501 may be correspondingly provided with two second sealing installation grooves 511, and the two second sealing structures 510 may be respectively installed in the two second sealing installation grooves 511. The two second seal installation grooves 511 may be spaced apart in the axial direction of the water pipe assembly 50.

By disposing the plurality of second seal structures 510 at intervals along the axial direction of the water tube assembly 50, when the inner water tube 501 is connected to the tube joint 508, the hot water in the first flow channel 503 and the cold water in the second flow channel 504 can be separated on both sides of the second seal structure 510 in the axial direction of the water tube assembly 50, the plurality of second seal structures 510 can prevent the hot water in the first flow channel 503 from flowing into the second flow channel 504 through the gap between the tube joint 508 and the inner water tube 501 in the axial direction of the water tube assembly 50, and the plurality of second seal structures 510 can also prevent the cold water in the second flow channel 504 from flowing into the first flow channel 503 through the gap between the tube joint 508 and the inner water tube 501 in the axial direction of the water tube assembly 50, so that the first flow channel 503 can be prevented from communicating with the second flow channel 504.

Alternatively, as shown in fig. 2 to 4, the second seal structure 510 may be configured as a seal ring, and the second seal installation groove 511 may be configured as an annular groove. When the second sealing installation groove 511 is configured as an annular groove, the second sealing installation groove 511 may extend in the circumferential direction of the pipeline joint 508 and/or the inner water pipe 501, and when the sealing ring is installed in the annular groove, the sealing ring may protrude from the surface of the pipeline joint 508 and/or the inner water pipe 501, in the assembling process of the water pipe assembly 50, when the inner water pipe 501 extends into the pipeline joint 508, the pipeline joint 508 and the inner water pipe 501 may jointly press the second sealing structure 510, and the second sealing structure 510 may seal the gap between the pipeline joint 508 and the inner water pipe 501 after being pressed, so that the first flow passage 503 may be prevented from being communicated with the second flow passage 504.

Alternatively, as shown in fig. 2 to 4, a surface of the inner water pipe 501 opposite to the pipe joint 508 may be provided with a second sealing installation groove 511, that is, the second sealing installation groove 511 may be disposed on an outer wall surface of the inner water pipe 501, and compared to disposing the second sealing installation groove 511 on an inner wall surface of the pipe joint 508, disposing the second sealing installation groove 511 on the outer wall surface of the inner water pipe 501 may reduce the processing difficulty of the second sealing installation groove 511, and disposing the second sealing installation groove 511 on the outer wall surface of the inner water pipe 501 may also reduce the assembly difficulty of the water pipe assembly 50, so that the assembly efficiency of the water heater 100 may be further improved.

In some embodiments of the present invention, as shown in fig. 3, the inner water tube 501 is symmetrical with respect to a center line of the inner water tube 501 in an axial direction of the inner water tube 501. Wherein, through designing interior water pipe 501 for the central line symmetry about interior water pipe 501, interior water pipe 501 can reverse install in outer water pipe 502, the one end that is provided with first sealed mounting groove 507 of interior water pipe 501 can with the cooperation of pegging graft of pipe joint 508, the one end that is provided with second sealed mounting groove 511 of interior water pipe 501 can with the cooperation of pegging graft of pipe joint 508, assembly personnel need not differentiate interior water pipe 501's installation direction when assembling water pipe assembly 50, thereby can further improve the assembly efficiency of water heater 100.

In some embodiments of the present invention, as shown in fig. 6 and 7, the water heater 100 may further include: the electricity-proof wall conduit 30, the electricity-proof wall conduit 30 may have an inlet 302 and an outlet 303, the inlet 302 is in communication with the second flow path 504, and the outlet 303 is adapted to be in communication with the first flow path 503. Wherein, when the power consumption part damage in the water storage intracavity, or the power consumption part is unreliable with being connected of electric connecting wire, or the ground wire that water heater 100 inserts is electrified, the power consumption part can take place the electric leakage, because water can be as the conductor, the electric current can conduct through water, if water heater 100 provides the hot water of electrified current for the user, can cause serious electric shock accident. By arranging the electricity-proof wall pipeline 30 on the water heater 100, the electricity-proof wall pipeline 30 can reduce the current intensity in water by using a water resistance attenuation isolation method, the electricity-proof wall pipeline 30 can be constructed into a plastic piece, and the electricity-proof wall pipeline 30 can have good insulating property, so that the use safety of the water heater 100 can be improved.

A third flow passage 304 and a fourth flow passage 305 are arranged in the electricity-proof wall pipeline 30, the third flow passage 304 is communicated with the liquid inlet 302 and the second flow passage 504, the fourth flow passage 305 is suitable for being communicated with the liquid inlet 302 and the liquid outlet 303, and the liquid outlet 303 is suitable for being communicated with the first flow passage 503. By connecting the third flow channel 304 to the liquid inlet 302 and the second flow channel 504, cold water can flow from the liquid inlet 302 into the electricity-proof wall pipeline 30, and cold water in the electricity-proof wall pipeline 30 can flow from the third flow channel 304 to the second flow channel 504 and is supplemented into the water storage cavity from the second flow channel 504. By arranging the electricity-proof wall pipeline 30 as an insulating part and under the action of a water resistance attenuation isolation method, the current intensity between the liquid inlet 302 and the second flow channel 504 can be reduced by the water in the third flow channel 304, and the current can be blocked by the electricity-proof wall pipeline 30, so that the cold water pipeline in the home of a user can be prevented from being electrified due to the fact that the current is conducted to the liquid inlet 302 through the second flow channel 504.

Similarly, by making the liquid outlet 303 communicate with the first flow channel 503, the heated hot water in the water storage cavity can flow from the first flow channel 503 to the liquid outlet 303, and by setting the electricity-proof wall pipeline 30 as an insulating member, and under the effect of the water resistance attenuation isolation method, the water between the liquid outlet 303 of the electricity-proof wall pipeline 30 and the first flow channel 503 can reduce the current intensity in the water, and the electricity-proof wall pipeline 30 can block the current, so that the current can be prevented from being conducted to the liquid outlet 303 through the first flow channel 503 to cause the hot water pipeline in the home of the user to be electrified.

Similarly, by making the fourth flow channel 305 communicate with the liquid inlet 302 and the liquid outlet 303, cold water can flow from the liquid inlet 302 to the liquid outlet 303, cold water flowing from the liquid inlet 302 to the liquid outlet 303 can be mixed with hot water flowing from the first flow channel 503 to the liquid outlet 303, and the hot water and the cold water can be changed into warm water after being mixed, it can be understood that the liquid inlet 302 and the first flow channel 503 are communicated at the liquid outlet 303, it should be noted that the hot water and the cold water can be mixed according to different proportions to form warm water with different temperatures, and the water heater 100 can provide warm water with an appropriate temperature for a user, so as to meet the use requirements of the user.

Through setting up to the insulating part electricity preventing wall pipeline 30, and under the effect of water resistance attenuation isolation method, the current strength between inlet 302 and liquid outlet 303 can be reduced to the water in the fourth runner 305, it can block the electric current to prevent that the electric current loops through second runner 504, inlet 302 conduction leads to liquid outlet 303 and causes the hot water pipeline in user's family to be electrified, also can prevent that the electric current loops through first runner 503, liquid outlet 303 conduction leads to inlet 302 and causes the cold water pipeline in user's family to be electrified.

That is, by connecting the electricity-proof wall pipeline 30 with the water pipe assembly 50, the electricity-proof wall pipeline 30 can prevent the water pipe assembly 50 from being electrified when supplying water to the water storage cavity, and the electricity-proof wall pipeline 30 can also prevent the water pipe assembly 50 from being electrified when discharging water in the water storage cavity, which is beneficial to improving the use safety of the water heater 100. Moreover, the electricity-proof wall pipeline 30 is connected with the water pipe assembly 50, the electricity-proof wall pipeline 30 is not welded with the water pipe connector 101 on the shell 10, and non-circular hot melting interfaces between the electricity-proof wall pipeline 30 and the water pipe connector 101 are reduced, so that the processing procedure of the water heater 100 can be simplified.

In some embodiments of the present invention, as shown in fig. 6 and 7, the electricity-proof wall piping 30 may include: a water outlet pipe 307, a connection pipe 308, and a water inlet pipe 306, the connection pipe 308 may communicate the water outlet pipe 307 and the water inlet pipe 306, and the connection pipe 308 may define a fourth flow channel 305 and a third flow channel 304, that is, the connection pipe 308 may communicate the liquid inlet 302 and the second flow channel 504. The liquid outlet 303 may be disposed at one end of the water outlet pipe 307, the connection pipe 308 may be connected to the other end of the water outlet pipe 307, the liquid inlet 302 may be disposed at one end of the water inlet pipe 306, and the connection pipe 308 may be connected to the other end of the water inlet pipe 306.

By disposing the connection pipe 308 between the water outlet pipe 307 and the water inlet pipe 306, the connection pipe 308 can extend the water path length between the water outlet pipe 307 and the water inlet pipe 306, and as can be seen from the resistance characteristics of water, the resistance of water between the water outlet pipe 307 and the water inlet pipe 306 is larger, and when current is conducted by means of water between the water outlet pipe 307 and the water inlet pipe 306, the intensity of current can be effectively reduced by the water in the connection pipe 308, so that dangerous accidents caused by too large current or voltage in the water between the water outlet pipe 307 and the water inlet pipe 306 can be avoided.

Moreover, by disposing the connection pipe 308 between the liquid inlet 302 and the second flow channel 504, the connection pipe 308 can extend the length of the water path between the liquid inlet 302 and the second flow channel 504, and as can be seen from the resistance characteristics of water, the resistance of water between the liquid inlet 302 and the second flow channel 504 is larger, and when current is conducted by the water between the liquid inlet 302 and the second flow channel 504, the water in the connection pipe 308 can effectively reduce the intensity of the current, so that dangerous accidents caused by too large current or voltage in the water between the liquid inlet 302 and the second flow channel 504 can be avoided.

According to some embodiments of the present invention, as shown in fig. 1 to 3, the outer side of the outer water pipe 502 may be sleeved with a reinforcing pipe 530, the reinforcing pipe 530 may support the outer water pipe 502 to strengthen the structure of the outer water pipe 502, and the reinforcing pipe 530 may prevent the outer water pipe 502 from bending, which is beneficial to improving the service life of the water pipe assembly 50. In addition, at least one liquid outlet hole 531 may be disposed on the surface of the reinforcing pipe 530, the liquid outlet hole 531 may communicate the casing 10 with the circulation hole 505, and the cold water flowing out from the circulation hole 505 may flow into the water storage cavity through the liquid outlet hole 531.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the utility model and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the utility model.

In the description of the present invention, "a plurality" means two or more.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the utility model have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the utility model, the scope of which is defined by the claims and their equivalents.

Claims (14)

1. A water heater, comprising:

a housing;

a water tube assembly disposed in the housing and at least partially extending into the interior of the housing, the water tube assembly including: interior water pipe and outer water pipe, outer water pipe box is established the outside of interior water pipe, interior water pipe in inject with the first runner of the inside intercommunication of casing, interior water pipe with inject between the outer water pipe with the second runner of the inside intercommunication of casing.

2. The water heater of claim 1, wherein a plurality of first sealing structures are arranged between the end of the inner water pipe and the end of the outer water pipe, and the plurality of first sealing structures are used for sealing a gap between the inner water pipe and the outer water pipe.

3. The water heater according to claim 2, wherein the inner water pipe and/or the outer water pipe is provided with a first seal installation groove for installing the first seal structure.

4. The water heater according to claim 3, wherein the first sealing installation grooves are plural, and the plural first sealing installation grooves correspond to the plural first sealing structures one to one.

5. The water heater according to claim 4, wherein a plurality of said first seal mounting grooves and a plurality of said first seal structures are spaced apart in an axial direction of said water pipe assembly.

6. The water heater according to claim 3, wherein the first seal mounting groove is configured as an annular groove and the first seal structure is configured as a gasket.

7. The water heater according to claim 3, wherein a surface of the inner water pipe opposite to the outer water pipe is provided with the first seal installation groove.

8. The water heater according to any one of claims 2-7, wherein a plurality of said first sealing structures are provided between the lower end of said inner water tube and the lower end of said outer water tube.

9. The water heater of claim 1, wherein the water tube assembly further comprises: the pipeline joint is sleeved on the end part of the shell, close to the inner water pipe, the outer water pipe is sleeved on the outer side of the pipeline joint, and the pipeline joint is provided with a joint flow passage communicated with the first flow passage and the inside of the shell.

10. The water heater of claim 9, wherein a plurality of second sealing structures are disposed between the inner water pipe and the pipe joint, and the plurality of second sealing structures are used for sealing a gap between the inner water pipe and the pipe joint.

11. The water heater of claim 10, wherein the inner water pipe and/or the pipe joint is provided with a second seal mounting groove for mounting the second seal structure.

12. The water heater according to claim 11, wherein the second sealing installation grooves are plural, and the plural second sealing installation grooves correspond to the plural second sealing structures one to one.

13. The water heater according to claim 1, wherein in an axial direction of the inner water tube, the inner water tube is symmetrical about a center line of the inner water tube.

14. The water heater of claim 1, further comprising: and the electricity-proof wall pipeline is provided with a liquid inlet and a liquid outlet, the liquid inlet is communicated with the second flow channel, and the liquid outlet is suitable for being communicated with the first flow channel.

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