Water Heater

Abstract

The present invention provides a water heater, comprising: an inner tank having a storage space; a water inlet interface and a water outlet interface; a tube body connected to the inner tank, the tube body having a first insulating flow channel and a second insulating flow channel, the first insulating flow channel connecting the water inlet interface and the storage space, and the second insulating flow channel connecting the water outlet interface and the storage space. The water heater provided by this solution uses a tube body to simultaneously realize water inlet and water outlet, which increases the function of the tube body. Compared with the existing solution with independent water inlet and outlet pipes, this solution reduces the number of tubes, the structure between the tube body and the inner tank is simpler, and the assembly is more convenient, which is conducive to shortening the assembly time and reducing the cost. It is understandable that each additional tube connected to the inner tank increases the risk of water leakage accordingly. This solution designs a tube body connected to the inner tank, which greatly reduces the hidden danger of water leakage and improves the reliability of the product. In addition, the two flow channels are insulating flow channels, which reduces the risk of leakage and improves the safety of product use.

Description

Technical Field

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

[0002] The existing water inlet and outlet devices of the water heater include a water inlet pipe and a water outlet pipe, which are respectively connected to the inner tank of the water heater, have a complex structure, are inconvenient to install, and have a high risk of water leakage. Summary of the invention

[0003] In order to solve at least one of the above technical problems, an object of the present invention is to provide a water heater.

[0004] To achieve the above-mentioned objectives, an embodiment of the first aspect of the present invention provides a water heater, comprising: an inner tank having a accommodating space; a water inlet interface and a water outlet interface; a tube body connected to the inner tank, the tube body having a first insulating flow channel and a second insulating flow channel, the first insulating flow channel connecting the water inlet interface and the accommodating space, and the second insulating flow channel connecting the water outlet interface and the accommodating space.

[0005] The water heater provided in the above embodiment of the present invention is provided with a first insulating flow channel and a second insulating flow channel in a tube body, the first insulating flow channel connects the water inlet interface and the accommodating space, and the second insulating flow channel connects the water outlet interface and the accommodating space. In this way, water inlet and water outlet are achieved simultaneously by using one tube body, thereby increasing the function of the tube body. Compared with the existing solution in which the water inlet pipe and the water outlet pipe are independent, the present solution reduces the number of tubes, and the structure between the tube body and the inner tank is simpler and the assembly is more convenient, which is conducive to shortening the assembly time and reducing the cost. It is understandable that each additional tube connected to the inner tank increases the risk of water leakage accordingly. The present solution designs a tube body connected to the inner tank, which greatly reduces the risk of water leakage and improves the reliability of the product. In addition, the two flow channels are insulating flow channels, which reduces the risk of leakage and improves the safety of product use.

[0006] In addition, the water heater in the above embodiment provided by the present invention may also have the following additional technical features:

[0007] In the above technical solution, the inner liner is provided with an inserting portion, and the inserting portion is plug-fitted with the tube body.

[0008] In the present embodiment, a plug-in portion is provided to be plugged into the tube body, so that the connection between the tube body and the inner liner is simpler and the assembly is convenient, which is conducive to shortening the assembly time. The plug-in portion is plugged into the tube body to achieve alignment between the inner liner and the tube body, thereby promoting the assembly accuracy and assembly reliability between the inner liner and the tube body.

[0009] In the above technical solution, the plug-in portion includes a mounting groove, the mounting groove is connected to the accommodating space, a portion of the tube body extends into the mounting groove, and another portion of the tube body extends into the accommodating space along the mounting groove.

[0010] In the present embodiment, the plug-in part includes a mounting groove, so that the plug-in part has a simple structure and is easy to process, and part of the tube body extends into the mounting groove, thereby increasing the connection area between the tube body and the mounting groove, thereby making the connection between the tube body and the mounting groove more stable, effectively preventing the tube body and the mounting groove from loosening, and improving the connection reliability between the tube body and the mounting groove. The increase in the connection area between the tube body and the mounting groove is beneficial to reducing the risk of water leakage between the tube body and the inner tank, thereby improving the reliability and safety of the product.

[0011] In the above technical solution, the installation groove includes a step groove, the step groove includes a first groove and a second groove, the first groove and the second groove are transitionally connected, and the tube body has a plug-in fitting portion and a limiting portion, wherein the plug-in fitting portion extends into the first groove and is plug-fitted with the first groove, and the limiting portion extends into the second groove and abuts against the second groove.

[0012] In the present embodiment, the installation groove includes a step groove. In this way, while the plug-in fitting portion extends into the first groove and plugs in with the first groove to achieve the connection between the inner tank and the tube body, the second groove forms a limit on the limiting portion, thereby avoiding the risk of excessive force during the installation process, which may cause the tube body to pass through the installation groove, further improving the convenience of assembly, and the cooperation between the second groove and the limiting portion is conducive to further reducing the risk of water leakage.

[0013] In any of the above technical solutions, one of the installation groove and the tube body is provided with a convex rib, and the convex rib abuts against and cooperates with the other of the installation groove and the tube body.

[0014] In this solution, the convex ribs further improve the connection reliability between the pipe body and the mounting groove, reduce the risk of the pipe body loosening, and further reduce the risk of water leakage.

[0015] In any of the above technical solutions, the water heater has a water distribution pipe, the water distribution pipe is connected to the inner tank, and the water inlet interface and the water outlet interface are provided on the water distribution pipe.

[0016] In this solution, a water inlet interface and a water outlet interface are provided on the water distribution pipe. It can be understood that the water inlet interface is adapted to connect to the water inlet pipeline, and the water outlet interface is adapted to connect to the water outlet pipeline. In this way, the connection between the water inlet pipeline and the water outlet pipeline is achieved through a water distribution pipe, which further reduces the components of the product, makes the product structure simpler, and makes assembly more convenient, which is conducive to further shortening the assembly time.

[0017] In the above technical solution, the water distribution pipe has a first pipe and a second pipe, the first pipe is connected to the water inlet interface and the first insulating flow channel, and the second pipe is connected to the water outlet interface and the second insulating flow channel.

[0018] In this solution, a first pipe is provided to connect the water inlet interface and the first insulating flow channel, and a second pipe is provided to connect the water outlet interface and the second insulating flow channel. The first pipe and the second pipe are independent of each other to avoid mixing and interference of water in the first insulating flow channel and water in the second insulating flow channel in the water distribution pipe, thereby ensuring the reliability of the water distribution pipe.

[0019] In the above technical solution, a first partition plate is provided in the tube body, and the first partition plate separates the tube body into a first sub-channel and a second sub-channel, the first sub-channel forms a part of the first insulating channel, and the second sub-channel forms a part of the second insulating channel, and a second partition plate is provided in the water distribution pipe, and the second partition plate separates the water distribution pipe into the first pipe and the second pipe, wherein the water distribution pipe has an abutting wall, the abutting wall abuts the inner tank and the tube body, and the first partition plate corresponds to the abutting second partition plate.

[0020] In any of the above technical solutions, the tube body includes a first tube body and a second tube body, the second tube body is mounted on the first tube body, a gap is formed between the inner wall of the second tube body and the outer wall of the first tube body, the first tube body has a first channel and a second channel, the first channel is connected to the gap and forms the first insulating flow channel, and the second channel forms the second insulating flow channel.

[0021] In the present solution, the second tube body is sleeved outside the first tube body, so that the first tube body and the second tube body form an integral tube. In this way, during the installation process, the first tube body and the second tube body can be installed in place together, reducing the installation steps, shortening the assembly time, and reducing the cost. Moreover, since the first tube body and the second tube body form an integral tube, only one mounting hole needs to be set on the inner tank to realize the installation of the first tube body and the second tube body, which reduces the number of mounting holes and reduces the risk of water leakage. At the same time, the first channel is connected to the gap to form a first insulating flow channel, and the second channel forms a second insulating flow channel. In this way, the structure between the two tube bodies is simple, and the resistance of the first insulating flow channel and the second insulating flow channel is small, which is conducive to improving the smoothness of water circulation in the flow channel, increasing the water flow rate, and improving the efficiency of water inlet and outlet.

[0022] In the above technical solution, the first channel and the gap form a baffle distribution; and / or the first insulating flow channel and the second insulating flow channel form a partition wall distribution.

[0023] In this solution, the first channel and the gap are arranged to form a baffle distribution, so that the length of the first insulating flow channel is increased. The equivalent resistance characteristics of water are utilized to further enhance the anti-electricity property of the first insulating flow channel, avoid the risk of leakage, and improve the safety of product use.

[0024] The first insulating flow channel and the second insulating flow channel are arranged to form a partition wall distribution. In this way, on the one hand, the first insulating flow channel and the second insulating flow channel do not interfere with each other, ensuring the mutual independence of the first insulating flow channel and the second insulating flow channel. On the other hand, the partition wall design between the first insulating flow channel and the second insulating flow channel is conducive to reducing the heat transfer efficiency between the first insulating flow channel and the second insulating flow channel and reducing heat loss.

[0025] In the above technical solution, a portion of the first tube body is located inside the second tube body, and the other portion is located outside the second tube body, and the portion of the first tube body outside the second tube body is provided with a water inlet of the second insulating flow channel; and / or the water inlet of the first insulating flow channel and the water outlet of the second insulating flow channel are located outside the inner tank.

[0026] In this solution, a portion of the first tube body is located inside the second tube body, and the other portion is located outside the second tube body, that is, the length of the first tube body is longer than that of the second tube body, and the second insulating flow channel is formed in the second channel of the first tube body, which is conducive to increasing the length of the second insulating flow channel, and then utilizing the equivalent resistance characteristics of water to further enhance the anti-electricity property of the second insulating flow channel, avoid the risk of leakage, and improve the safety of product use.

[0027] In the above technical scheme, the tube body has a joint, the joint has a supporting portion, one end of the second tube body is provided with an opening connected to the gap, the supporting portion is in abutment with the wall of the opening, wherein a recess is formed on the side wall of the joint adjacent to the supporting portion, and the recess serves as the water outlet of the first insulating flow channel; and / or the joint is provided with a plurality of protrusions, the plurality of protrusions form the supporting portion, the plurality of protrusions are distributed at intervals along the edge of the opening, and a drainage port is defined between adjacent protrusions, and the drainage port serves as the water outlet of the first insulating flow channel; and / or the side wall of the second tube body is provided with one or more drainage holes, and the one or more drainage holes serve as the water outlet of the first insulating flow channel.

[0028] In this solution, an opening is provided at one end of the second tube body, and the water outlet of the first insulating flow channel is adjacent to the opening. This is conducive to making full use of the gap, further extending the length of the first insulating flow channel, further enhancing the electrical resistance of the first insulating flow channel, avoiding the risk of leakage, and improving the safety of product use.

[0029] In the above technical solution, the first tube body is a type III polypropylene tube; and / or the second tube body is a first tube sleeve; and / or a part of the first tube body is located inside the second tube body, and another part is located outside the second tube body, and the part of the first tube body outside the second tube body is sleeved with a second tube sleeve.

[0030] In this solution, the first tube body is set to be a Type III polypropylene tube, which has the advantages of being environmentally friendly, lightweight, high-strength, corrosion-resistant, having a smooth inner wall without scaling, and having a long service life.

[0031] The second tube body is arranged as the first tube sleeve, so that the second tube body has certain insulation properties, further increasing the anti-electrical effect of the product.

[0032] The portion of the first tube body outside the second tube body is provided with a second tube sleeve, so that the portion of the first tube body outside the second tube body has certain insulation properties, further increasing the anti-electrical effect of the product.

[0033] Additional aspects and advantages of the present invention will become apparent from the following description or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0035] Figure 1 is a schematic diagram of the main structure of a water heater according to an embodiment of the present invention;

[0036] Figure 2 is a bottom view of the structure of a water heater according to an embodiment of the present invention;

[0037] Figure 3 is a left-side structural schematic diagram of a water heater according to an embodiment of the present invention;

[0038] Figure 4 yes Figure 3 A schematic cross-sectional view of AA shown in FIG.

[0039] Figure 5 yes Figure 4 A schematic diagram of the partially enlarged structure of B shown in FIG.

[0040] Figure 6 is a schematic diagram of the three-dimensional structure of a tube body according to an embodiment of the present invention;

[0041] Figure 7 is a schematic diagram of the main structure of a water heater according to an embodiment of the present invention;

[0042] Figure 8 is a schematic diagram of the three-dimensional structure of a tube body according to an embodiment of the present invention;

[0043] Fig. 9 It is a schematic cross-sectional structural diagram of a water heater according to an embodiment of the present invention.

[0044] in, Figures 1 to 9 The corresponding relationship between the reference numerals and component names in the figure is:

[0045] 10 water heater, 11 inner tank, 111 accommodating space, 112 plug-in portion, 1121 mounting groove, 121 water inlet interface, 122 water outlet interface, 130 pipe body, 1301 first insulating flow channel, 13011 water inlet of the first insulating flow channel, 13012 water outlet of the first insulating flow channel, 1302 second insulating flow channel, 13021 water inlet of the second insulating flow channel, 13022 water outlet of the second insulating flow channel, 131 first pipe body, 1311 The first channel, 1312 the second channel, 132 the second tube body, 1321 the opening, 1322 the drainage hole, 133 the gap, 134 the joint, 13401 the first sub-channel, 13402 the second sub-channel, 1341 the abutment, 1342 the recess, 135 the rib, 136 the first partition plate, 137 the second pipe sleeve, 138 the limiting ring, 140 the water distribution pipe, 141 the second partition plate, 142 the first pipe, 143 the second pipe, 144 the abutment wall. DETAILED DESCRIPTION

[0046] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0047] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited to the specific embodiments disclosed below.

[0048] Refer to the following Figures 1 to 9 A water heater 10 according to some embodiments of the present invention is described.

[0049] like Figure 1 , Figure 2 and Figure 4 As shown, the water heater 10 provided in the embodiment of the first aspect of the present invention includes an inner tank 11 , a water inlet interface 121 , a water outlet interface 122 , and a pipe body 130 .

[0050] Specifically, the inner liner 11 has a accommodating space 111, and the tube body 130 is connected to the inner liner 11. The tube body 130 has a first insulating flow channel 1301 and a second insulating flow channel 1302. The first insulating flow channel 1301 connects the water inlet interface 121 and the accommodating space 111, and the second insulating flow channel 1302 connects the water outlet interface 122 and the accommodating space 111.

[0051] The water heater 10 provided in the above embodiment of the present invention is provided with a first insulating flow channel 1301 and a second insulating flow channel 1302 in a tube body 130. The first insulating flow channel 1301 connects the water inlet interface 121 and the accommodating space 111, and the second insulating flow channel 1302 connects the water outlet interface 122 and the accommodating space 111. In this way, water inlet and water outlet are realized simultaneously by using one tube body 130, and the function of the tube body 130 is increased. Compared with the existing solution in which the water inlet pipe and the water outlet pipe are independent, the present solution reduces the number of pipes, and the structure between the tube body 130 and the inner tank 11 is simpler and more convenient to assemble, which is conducive to shortening the assembly time and reducing the cost. It is understandable that each additional tube connected to the inner tank 11 increases the risk of water leakage accordingly. The present solution designs a tube body 130 connected to the inner tank 11, which greatly reduces the hidden danger of water leakage and improves the reliability of the product. In addition, the two flow channels are insulating flow channels, which reduces the risk of leakage and improves the safety of product use.

[0052] Embodiment 1:

[0053] like Figure 3 and Figure 4 As shown, in addition to the features of the above embodiment, this embodiment further defines that: the inner liner 11 is provided with an inserting portion 112, and the inserting portion 112 is inserted and matched with the tube body 130. In this way, the connection between the tube body 130 and the inner liner 11 is simpler, the assembly is convenient, and it is beneficial to shorten the assembly time, and the inner liner 11 and the tube body 130 are aligned by inserting and matching the inserting portion 112 with the tube body 130, thereby promoting the assembly accuracy and assembly reliability between the inner liner 11 and the tube body 130.

[0054] Furthermore, if Figure 5As shown, the plug-in portion 112 includes a mounting groove 1121, the mounting groove 1121 is connected to the accommodating space 111, a portion of the tube body 130 extends into the mounting groove 1121, and another portion of the tube body 130 extends into the accommodating space 111 along the mounting groove 1121. In this way, the plug-in portion 112 has a simple structure and is easy to process, and a portion of the tube body 130 extends into the mounting groove 1121, which increases the connection area between the tube body 130 and the mounting groove 1121, thereby making the connection between the tube body 130 and the mounting groove 1121 more stable, effectively preventing the tube body 130 from loosening from the mounting groove 1121, and improving the connection reliability between the tube body 130 and the mounting groove 1121. In addition, the connection area between the tube body 130 and the mounting groove 1121 is increased, which is conducive to reducing the risk of water leakage between the tube body 130 and the inner liner 11, and improving the reliability and safety of the product.

[0055] For example, a mounting groove 1121 protruding from the outer wall of the inner liner 11 is provided on the outer wall of the inner liner 11, and the tube body 130 is inserted into the mounting groove 1121 and extends into the accommodating space 111 through the mounting groove 1121, wherein a sealing member is provided between the outer wall of the tube body 130 and the inner wall of the mounting groove 1121 to seal the gap 133 between the outer wall of the tube body 130 and the inner wall of the mounting groove 1121 to prevent water leakage.

[0056] Furthermore, if Figure 5 As shown, the installation groove 1121 includes a step groove, and the step groove includes a first groove and a second groove, and the first groove and the second groove are transitionally connected. The tube body 130 has a plug-in matching portion and a limiting portion, wherein the plug-in matching portion extends into the first groove and plugs with the first groove, and the limiting portion extends into the second groove and abuts against the second groove. In this way, while the plug-in matching portion extends into the first groove and plugs with the first groove to achieve the connection between the liner 11 and the tube body 130, the second groove forms a limit on the limiting portion, avoiding the risk of excessive force during the installation process, resulting in the tube body 130 passing through the installation groove 1121, further improving the convenience of assembly, and the cooperation between the second groove and the limiting portion is conducive to further reducing the risk of water leakage.

[0057] Furthermore, one of the mounting groove 1121 and the tube body 130 is provided with a convex rib 135, and the convex rib 135 is abutted against the other of the mounting groove 1121 and the tube body 130. The convex rib 135 further improves the connection reliability between the tube body 130 and the mounting groove 1121, reduces the risk of the tube body 130 being loosened, and further reduces the risk of water leakage.

[0058] Embodiment 2:

[0059] like Figure 4 , Figure 5 and Figure 6As shown, in addition to the features of any of the above embodiments, this embodiment further defines that: the water heater 10 has a water distribution pipe 140, the water distribution pipe 140 is connected to the inner tank 11, and the water distribution pipe 140 is provided with a water inlet interface 121 and a water outlet interface 122. It can be understood that the water inlet interface 121 is adapted to connect to the water inlet pipeline, and the water outlet interface 122 is adapted to connect to the water outlet pipeline. It can be understood that the water inlet interface 121 is adapted to connect to the water inlet pipeline, and the water outlet interface 122 is adapted to connect to the water outlet pipeline. In this way, the connection of the water inlet pipeline and the water outlet pipeline is realized through a water distribution pipe 140, which further reduces the components of the product, makes the product structure more concise, and is more convenient to assemble, which is conducive to further shortening the assembly time.

[0060] Furthermore, the water distribution pipe 140 has a first pipe 142 and a second pipe 143, the first pipe 142 is connected to the water inlet interface 121 and the first insulating flow channel 1301, and the second pipe 143 is connected to the water outlet interface 122 and the second insulating flow channel 1302. The first pipe 142 and the second pipe 143 are independent of each other, so as to avoid the water in the first insulating flow channel 1301 and the water in the second insulating flow channel 1302 from mixing and interfering in the water distribution pipe 140, thereby ensuring the reliability of the water distribution pipe 140.

[0061] Furthermore, a first partition plate 136 is provided in the tube body 130, and the first partition plate 136 separates the tube body 130 into a first sub-channel 13401 and a second sub-channel 13402, the first sub-channel 13401 forms a part of the first insulating channel 1301, and the second sub-channel 13402 forms a part of the second insulating channel 1302, and a second partition plate 141 is provided in the water distribution pipe 140, and the second partition plate 141 separates the water distribution pipe 140 into a first pipe 142 and a second pipe 143, wherein the water distribution pipe 140 has an abutment wall 144, the abutment wall 144 abuts against the inner tank 11 and the tube body 130, and the first partition plate 136 correspondingly abuts against the second partition plate 141.

[0062] For example, a second partition plate 141 is provided in the water distribution pipe 140, and the second partition plate 141 divides the water distribution pipe 140 into a first pipe 142 and a second pipe 143. One end of the water distribution pipe 140 has abutment wall 144, and the abutment wall 144 is correspondingly connected to one end of the pipe body 130, and the first partition plate 136 abuts against the second partition plate 141, so that the first pipe 142 is correspondingly connected to the first insulating flow channel 1301, and the second pipe 143 is correspondingly connected to the second insulating flow channel 1302. The other end of the water distribution pipe 140 is provided with a water inlet interface 121 and a water outlet interface 122, and the water inlet interface 121 is suitable for The water outlet interface 122 is connected to the water inlet pipeline and is suitable for connecting the water outlet pipeline. For example, the water inlet interface 121 is connected to the cold water pipeline for cold water to flow in, and the water outlet interface 122 is connected to the hot water pipeline (such as a faucet) to achieve hot water outflow, that is, cold water inlet and hot water outlet are achieved through a water distribution pipe 140. The water distribution pipe 140 and the pipe body 130 are locked by fasteners (such as screws, etc.). Compared with the threaded connection of the water distribution pipe 140, this connection method is conducive to the alignment and positioning between the first insulating flow channel 1301 and the first channel 1311 and between the second insulating flow channel 1302 and the second channel 1312.

[0063] Embodiment 3:

[0064] like Figure 7 , Figure 8 and Fig. 9 As shown, in addition to the features of any of the above embodiments, this embodiment further defines: the tube body 130 includes a first tube body 131 and a second tube body 132, the second tube body 132 is sleeved outside the first tube body 131, a gap 133 is formed between the inner wall of the second tube body 132 and the outer wall of the first tube body 131, the first tube body 131 has a first channel 1311 and a second channel 1312, the first channel 1311 is connected to the gap 133 and forms a first insulating flow channel 1301, and the second channel 1312 forms a second insulating flow channel 1302. In this way, during the installation process, the first tube body 131 and the second tube body 132 can be installed in place together, reducing the installation steps, shortening the assembly time, and reducing the cost. Moreover, since the first tube body 131 and the second tube body 132 form an integral tube, only one mounting hole needs to be set on the inner tank 11 to realize the installation of the first tube body 131 and the second tube body 132, thereby reducing the number of mounting holes and reducing the risk of water leakage. At the same time, the first channel 1311 is connected to the gap 133 to form a first insulating flow channel 1301, and the second channel 1312 forms a second insulating flow channel 1302. In this way, the structure between the two tube bodies 130 is simple, and the resistance of the first insulating flow channel 1301 and the second insulating flow channel 1302 is small, which is conducive to improving the smoothness of water circulation in the flow channel, increasing the water flow rate, and improving the efficiency of water inlet and outlet.

[0065] For example, the second tube body 132 is sleeved outside the first tube body 131, and a gap 133 is formed between the inner wall of the second tube body 132 and the outer wall of the first tube body 131. A partition structure (such as a partition plate) is provided in the first tube body 131, and the partition structure divides the first tube body 131 into a first channel 1311 and a second channel 1312, wherein the first channel 1311 is connected to the gap 133, and a through hole is provided on the wall of the first tube body 131, so that the first channel 1311 is connected to the gap 133. Of course, the present scheme is not limited to this. In other embodiments, the first channel 1311 and the gap 133 can also be designed to be connected through a conducting structure such as a conduit, which will not be listed here one by one, but they all belong to the protection scope of the present scheme without departing from the present design concept. The first channel 1311 and the gap 133 form a first insulating flow channel 1301, and the second channel 1312 forms a second insulating flow channel 1302.

[0066] Furthermore, a blocking piece is provided in the first channel 1311 , the water inlet 13011 of the first insulating flow channel is located on one side of the blocking piece, and the first channel 1311 is connected to the gap 133 at a position between the blocking piece and the water inlet 13011 of the first insulating flow channel.

[0067] For example, the first tube body 131 has a first hole and a second hole relative to each other, wherein the first hole is formed as a water inlet 13011 of the first insulating flow channel, a plugging member (such as a rubber plug) is arranged in the first channel 1311 and is located between the second hole and the connection point between the first channel 1311 and the gap 133. In detail, a through hole is provided on the wall of the first tube body 131, so that the first channel 1311 is connected to the gap 133, the plugging member is arranged in the first channel 1311 and is located between the second hole and the through hole, so that the water inlet 13011 of the first insulating flow channel is connected to the gap 133 through the through hole, and the first The water inlet 13011 and the second hole of an insulating flow channel are blocked, so that water enters the first channel 1311 along the water inlet 13011 of the first insulating flow channel, flows into the gap 133 through the through hole and is discharged along the water outlet 13012 of the first insulating flow channel. The flow direction of water in the first channel 1311 is opposite to the flow direction in the gap 133, thereby forming a circuitous flow path, which increases the length of the first insulating flow channel 1301. By utilizing the equivalent resistance characteristics of water, the anti-electricity property of the first insulating flow channel 1301 is further enhanced, the risk of leakage is avoided, and the safety of product use is improved.

[0068] Furthermore, the first channel 1311 and the gap 133 form a baffle distribution. The first channel 1311 and the gap 133 form a baffle distribution, so that the length of the first insulating flow channel 1301 is increased, and the equivalent resistance characteristics of water are used to further enhance the anti-electricity performance of the first insulating flow channel 1301, avoid the risk of leakage, and improve the safety of product use.

[0069] For example, the first channel 1311 and the gap 133 are connected end to end to form a serpentine, wave or broken line-shaped deflection.

[0070] The first insulating flow channel 1301 and the second insulating flow channel 1302 are arranged to form a partition distribution. Thus, on the one hand, the first insulating flow channel 1301 and the second insulating flow channel 1302 do not interfere with each other, thereby ensuring the mutual independence of the first insulating flow channel 1301 and the second insulating flow channel 1302. On the other hand, the partition design between the first insulating flow channel 1301 and the second insulating flow channel 1302 is conducive to reducing the heat transfer efficiency between the first insulating flow channel 1301 and the second insulating flow channel 1302 and reducing heat loss.

[0071] Embodiment 4:

[0072] like Fig. 9 As shown, in addition to the features of any of the above embodiments, this embodiment further defines that: a portion of the first tube body 131 is located inside the second tube body 132, and the other portion is located outside the second tube body 132, and the portion of the first tube body 131 outside the second tube body 132 is provided with a water inlet 13021 of the second insulating flow channel, that is, the length of the first tube body 131 is longer than that of the second tube body 132, and the second insulating flow channel 1302 is formed in the second channel 1312 of the first tube body 131, which is conducive to increasing the length of the second insulating flow channel 1302, and then utilizing the equivalent resistance characteristics of water to further enhance the anti-electricity property of the second insulating flow channel 1302, avoid the risk of leakage, and improve the safety of product use.

[0073] The water inlet 13011 of the first insulating flow channel and the water outlet 13022 of the second insulating flow channel are located outside the inner tank 11. In this way, it is convenient to connect the water inlet pipeline and the water outlet pipeline.

[0074] Embodiment 5:

[0075] like Figure 7 , Figure 8 and Fig. 9 As shown, in addition to the features of any of the above embodiments, this embodiment further defines: the tube body 130 has a joint 134, the joint 134 has a supporting portion 1341, one end of the second tube body 132 is provided with an opening 1321 connected to the gap 133, and the supporting portion 1341 is in abutment with the wall of the opening 1321.

[0076] For example, the joint 134 is a type III polypropylene joint 134 (PPR joint 134), and a first partition plate 136 is provided in the joint 134, and the first partition plate 136 divides the joint 134 into a first sub-channel 13401 and a second sub-channel 13402. A partition structure (such as a partition plate) is provided in the first tube body 131, and the partition structure divides the first tube body 131 into a first channel 1311 and a second channel 1312. One end of the joint 134 is correspondingly connected to one end of the first tube body 131, and the first partition plate 136 of the joint 134 is correspondingly connected to the partition structure of the first tube body 131. For example, the joint 134 and the first tube body 131 are hot-melt connected, so that the first sub-channel 13401 is correspondingly connected to the first insulating channel 1301, and the second sub-channel 13402 is correspondingly connected to the second insulating channel 1302.

[0077] Among them, a recess 1342 is formed on one end of the side wall of the joint 134 adjacent to the abutment 1341, and the recess 1342 serves as the water outlet 13012 of the first insulating flow channel. This is conducive to making full use of the gap 133, further extending the length of the first insulating flow channel 1301, further enhancing the anti-electricity property of the first insulating flow channel 1301, avoiding the risk of leakage, and improving the safety of product use. In addition, the water outlet 13012 of the first insulating flow channel is located on the lower side of the tube body 130, which is conducive to avoiding the disturbance of water in the inner tank 11 by the cold water flowing out through the water outlet 13012 of the first insulating flow channel.

[0078] In another embodiment, the joint 134 is provided with a plurality of protrusions, the plurality of protrusions form abutment portion 1341, the plurality of protrusions are distributed at intervals along the edge of the opening 1321, and drainage ports are defined between adjacent protrusions, and the drainage ports serve as the water outlet 13012 of the first insulating flow channel.

[0079] In another embodiment, one or more drainage holes 1322 are provided on the side wall of the second tube body 132 , and the one or more drainage holes 1322 serve as the water outlet 13012 of the first insulating flow channel.

[0080] Of course, the above forms can also be combined arbitrarily.

[0081] In addition, in the present embodiment, there is a certain distance between the water outlet 13012 of the first insulating flow channel and the water inlet 13021 of the second insulating flow channel, so as to prevent water from entering the second insulating flow channel 1302 along the water inlet 13021 of the second insulating flow channel immediately after being discharged from the first insulating flow channel 1301 along the water outlet 13012 of the first insulating flow channel, thereby reducing the risk of cross-flow between the first insulating flow channel 1301 and the second insulating flow channel 1302. For example, the first insulating flow channel 1301 is designed for cold water to flow in, and the second insulating flow channel 1302 is designed for hot water to flow out. By increasing the distance between the water outlet 13012 of the first insulating flow channel and the water inlet 13021 of the second insulating flow channel, it is prevented that cold water enters the second insulating flow channel 1302 along the water inlet 13021 of the second insulating flow channel without being heated, thereby ensuring the temperature of the hot water. Moreover, by having cold water flow in on one side and hot water flow out on the other side, it is beneficial to reduce the consumption of cold and heat neutralization, thereby further ensuring the temperature of the hot water.

[0082] Furthermore, the water outlet 13012 of the first insulating flow channel and the water inlet 13021 of the second insulating flow channel are located on opposite sides of the first tube body 131, so that there is a certain distance between the water outlet 13012 of the first insulating flow channel and the water inlet 13021 of the second insulating flow channel, so as to prevent water from immediately entering the second insulating flow channel 1302 along the water inlet 13021 of the second insulating flow channel after being discharged from the first insulating flow channel 1301 along the water outlet 13012 of the first insulating flow channel, thereby reducing the distance between the first insulating flow channel 1301 and the second insulating flow channel. 1302. For example, the first insulating flow channel 1301 is designed for cold water to flow in, and the second insulating flow channel 1302 is designed for hot water to flow out. By increasing the distance between the water outlet 13012 of the first insulating flow channel and the water inlet 13021 of the second insulating flow channel, it is prevented that cold water enters the second insulating flow channel 1302 along the water inlet 13021 of the second insulating flow channel without being heated, thereby ensuring the temperature of the hot water. Moreover, by having cold water flow in on one side and hot water flow out on the other side, it is helpful to reduce the consumption of cold and heat neutralization and further ensure the temperature of the hot water.

[0083] Embodiment 6:

[0084] like Figure 4 and Figure 6 As shown, in addition to the features of any of the above embodiments, this embodiment further defines that: the first tube body 131 is a type III polypropylene tube (PPR tube). The type III polypropylene tube has the advantages of being environmentally friendly, lightweight, high-strength, corrosion-resistant, having a smooth inner wall without scaling, and having a long service life.

[0085] The second tube body 132 is the first tube sleeve, so that the second tube body 132 has a certain insulation property, further increasing the anti-electrical effect of the product.

[0086] Of course, in other embodiments, the second tube body 132 may be designed to be sheathed with the first tube sleeve.

[0087] A portion of the first tube body 131 is located inside the second tube body 132, and another portion is located outside the second tube body 132, and a second tube sleeve 137 is sleeved on the portion of the first tube body 131 outside the second tube body 132. In this way, the portion of the first tube body 131 outside the second tube body 132 has certain insulation properties, further increasing the anti-electrical effect of the product.

[0088] Furthermore, the portion of the first tube body 131 outside the second tube body 132 is connected to the second tube sleeve 137 by fixing pins, screws, gluing, or the like.

[0089] Additional aspects and advantages of the present invention will become apparent from the following description or may be learned by practice of the present invention. Specific embodiments

[0091] like Figures 1 to 9 As shown, the water heater 10 includes an inner tank 11 , a pipe body 130 , and a water distribution pipe 140 .

[0092] The tube body 130 includes a first tube, a joint 134 and a first tube sleeve. Specifically, the first tube is hot-melt connected to the joint 134. The first tube has a first channel 1311 and a second channel 1312. The first tube sleeve is sleeved on the outside of the first tube, and a limiting ring 138 is provided between the first tube sleeve and the first tube. An O-ring is sleeved on the limiting ring. The limiting ring is used to achieve concentric distribution between the first tube sleeve and the first tube, and sealing between the first tube sleeve and the first tube at the end. A gap 133 is formed between the inner wall of the first tube sleeve and the outer wall of the first tube. The first channel 1311 is connected to the gap 133. The first channel 1311 and the gap 133 form a first insulating flow channel 1301, and the second channel 1312 forms a second insulating flow channel 1302. An array of water outlets is provided below the first tube sleeve, wherein the first insulating flow channel 1301 is for cold water to flow in, and the second insulating flow channel 1302 is for hot water to flow out. The water flow direction of the first insulating flow channel 1301 can refer to Fig. 9 The water flow direction of the second insulating flow channel 1302 can be referred to as x1 in Fig. 9 In x2, the first insulating flow channel 1301 flows around the first pipe sleeve and flows out from the outlet below the first pipe sleeve. The second insulating flow channel 1302 can control the water level and make the water flow out directly along the second insulating flow channel 1302 from the top, so that the incoming water flows out from the bottom and the outgoing water flows out from the top.

[0093] Furthermore, part of the first tube is located outside the first tube sleeve, and the part of the first tube located outside the first tube sleeve is sleeved with a second tube sleeve 137, and the second tube sleeve 137 is fixed by a fixing pin.

[0094] A sealing groove is provided at the bottom of the joint 134, and an inlet and outlet water sealing gasket is installed in the sealing groove to achieve the sealing of the joint 134. The inlet and outlet water devices are inserted into the inner tank 11 of the water heater 10. The joint 134 is suitable for connecting with the pipe joint 134. For example, the joint 134 is connected to the cold water pipe and the hot water joint 134. The cold water enters the inner tank 11 of the water heater 10 through the joint 134 and the first insulating flow channel 1301. After heating treatment, the hot water flows out through the first insulating flow channel 1301 and the hot water joint 134, that is, cold water enters and hot water exits.

[0095] Both ends of the water distribution pipe 140 have openings 1321, plugs are inserted into the openings 1321, a sealing ring is sleeved on the plug, and the plug is inserted into place and fixed with a U-shaped clamp to prevent it from loosening.

[0096] The inner liner 11 has a flange interface protruding outward, and the tube body 130 extends into the inner liner 11 along the flange interface. There is only a seal between the flange interface and the tube body 130 to seal the gap 133 between the flange interface and the tube body 130 to prevent water leakage.

[0097] In the present invention, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense. For example, "connect" can be a fixed connection, a detachable connection, or an integral connection; "connect" can be a direct connection or an indirect connection through an intermediate medium. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0098] In the description of the present invention, it is necessary to understand that the terms "inside", "outside", etc. indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or unit referred to must have a specific direction, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.

[0099] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "specific embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0100] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A water heater, characterized in that: include: The liner has a storage space; Water inlet and outlet interfaces; A tube body connected to the inner tank, wherein the tube body has a first insulating flow channel and a second insulating flow channel, wherein the first insulating flow channel is connected to the water inlet interface and the accommodating space, and the second insulating flow channel is connected to the water outlet interface and the accommodating space; The inner liner is provided with an inserting portion, the inserting portion includes a mounting groove, the mounting groove includes a step groove, the step groove includes a first groove and a second groove, the first groove and the second groove are transitionally connected, the tube body has an inserting and matching portion and a limiting portion, wherein the inserting and matching portion extends into the first groove and is inserted and matched with the first groove, and the limiting portion extends into the second groove and abuts against the second groove; The tube body comprises a first tube body, a second tube body and a first tube sleeve, the first tube sleeve is sleeved on the second tube body, a part of the first tube body is located in the second tube body, and another part is located outside the second tube body, and the part of the first tube body outside the second tube body is sleeved on the second tube sleeve, and a limiting ring is provided between the first tube sleeve and the first tube body; The water heater has a water distribution pipe, the water distribution pipe is connected to the inner tank, and the water inlet interface and the water outlet interface are arranged on the water distribution pipe; The water distribution pipe has a first pipe and a second pipe, the first pipe is connected to the water inlet interface and the first insulating flow channel, and the second pipe is connected to the water outlet interface and the second insulating flow channel; A first partition plate is provided in the tube body, and the first partition plate separates the tube body into a first sub-channel and a second sub-channel, the first sub-channel forms a part of the first insulating channel, and the second sub-channel forms a part of the second insulating channel, and a second partition plate is provided in the water distribution pipe, and the second partition plate separates the water distribution pipe into the first pipe and the second pipe, wherein the water distribution pipe has an abutting wall, the abutting wall abuts the inner tank and the tube body, and the first partition plate corresponds to the abutting second partition plate.

2. The water heater according to claim 1, characterized in that: The plug-in portion is plug-fitted with the tube body.

3. The water heater according to claim 2, characterized in that: The installation groove is communicated with the accommodation space, a portion of the tube body extends into the installation groove, and another portion of the tube body extends into the accommodation space along the installation groove.

4. The water heater according to claim 3, characterized in that: One of the installation groove and the tube body is provided with a convex rib, and the convex rib is abutted and matched with the other of the installation groove and the tube body.

5. The water heater according to any one of claims 1 to 3, characterized in that: A gap is formed between the inner wall of the second tube body and the outer wall of the first tube body. The first tube body has a first channel and a second channel. The first channel is connected to the gap and forms the first insulating flow channel. The second channel forms the second insulating flow channel.

6. The water heater according to claim 5, characterized in that: The first channel and the gap form a baffle distribution; and / or The first insulating flow channel and the second insulating flow channel form a partition wall distribution.

7. The water heater according to claim 5, characterized in that: A portion of the first tube body is located inside the second tube body, and another portion is located outside the second tube body, and the portion of the first tube body outside the second tube body is provided with a water inlet of the second insulating flow channel; and / or The water inlet of the first insulating flow channel and the water outlet of the second insulating flow channel are located outside the inner container.

8. The water heater according to claim 5, characterized in that: The tube body has a joint, the joint has abutment, one end of the second tube body is provided with an opening communicating with the gap, the abutment is in abutment with the wall of the opening, wherein: A notch is formed on one end of the side wall of the joint adjacent to the abutting portion, and the notch serves as a water outlet of the first insulating flow channel; and / or The joint is provided with a plurality of protrusions, the plurality of protrusions form the abutting portion, the plurality of protrusions are distributed at intervals along the edge of the opening, and drainage ports are defined between adjacent protrusions, the drainage ports serving as water outlets of the first insulating flow channel; and / or One or more drainage holes are provided on the side wall of the second tube body, and the one or more drainage holes serve as water outlets of the first insulating flow channel.

9. The water heater according to claim 5, characterized in that: The first tube body is a type III polypropylene tube.

Images