Hot water supply device

Abstract

The present invention provides a hot water supply device, comprising: a first inner container; a second inner container located above and in communication with the first inner container; at least one heating unit for heating water within the hot water supply device; and a convection enhancement structure capable of enhancing convection between the water in the first inner container and the water in the second inner container. The hot water supply device of the present invention, through the design of the convection enhancement structure, overcomes the limitation of requiring one heating unit per inner container, thereby reducing costs and improving the heat exchange efficiency of the hot water supply device.

Description

Technical Field

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

[0002] Current water heaters typically consist of two joined inner tanks. To increase hot water supply, existing technology employs increasing the number of inner tanks. However, this increases the cost of each tank, as each requires its own independent heating unit and safety protection unit. Furthermore, existing water heaters are generally bulky, and increasing the number of inner tanks inevitably increases the overall size of the unit. Summary of the Invention

[0003] The purpose of the present invention is to provide a hot water supply device, which solves the problem that one inner tank requires a set of heating units through the design of a convection enhancement structure, thereby not only reducing the cost but also improving the heat exchange effect of the hot water supply device.

[0004] The above-mentioned purpose of the present invention can be achieved by adopting the following technical solutions:

[0005] The present invention provides a hot water supply device, comprising:

[0006] First liner;

[0007] a second inner liner, located above the first inner liner and connected to the first inner liner;

[0008] at least one heating unit for heating water in the hot water supply device;

[0009] The convection enhancement structure can enhance the convection between the water in the first inner container and the water in the second inner container.

[0010] In an embodiment of the present invention, a first channel and a second channel are formed between the first inner liner and the second inner liner, and the convection enhancement structure includes a first flow guide at least partially located in the second inner liner, and the first flow guide is communicated with the first channel.

[0011] In an embodiment of the present invention, the convection enhancement structure further includes a second flow guide member at least partially located in the first inner container, and the second flow guide member is communicated with the second channel.

[0012] In an embodiment of the present invention, a first channel and a second channel are formed between the first inner liner and the second inner liner, and the convection enhancement structure includes a second flow guide at least partially located in the first inner liner, and the second flow guide is communicated with the second channel.

[0013] In an embodiment of the present invention, along the length direction of the first inner liner and / or the second inner liner, the first channel and the second channel are respectively provided close to the ends of the first inner liner and / or the second inner liner.

[0014] In an embodiment of the present invention, the first flow guide is a first flow guide pipe, the first flow guide pipe includes an inlet and an outlet, and the first flow guide pipe is configured so that the water temperature at the inlet is higher than the water temperature at the outlet.

[0015] In an embodiment of the present invention, the outlet of the first flow guide tube is located in the second inner tank, the inlet of the first flow guide tube is arranged in the first inner tank, or the inlet of the first flow guide tube is arranged in the first channel, or the inlet of the first flow guide tube is connected to the upper part of the first channel.

[0016] In an embodiment of the present invention, the second flow guide member is a second flow guide pipe, and the second flow guide pipe includes an inlet and an outlet. The outlet of the second flow guide pipe is located in the first inner tank, and the inlet of the second flow guide pipe is located in the second inner tank, or the inlet of the second flow guide pipe is located in the second channel, or the inlet of the second flow guide pipe is connected to the lower part of the second channel.

[0017] In an embodiment of the present invention, the outer diameter of the first flow guiding tube is smaller than the inner diameter of the first channel.

[0018] In an embodiment of the present invention, the outer diameter of the second flow guiding pipe is smaller than the inner diameter of the second channel.

[0019] In an embodiment of the present invention, a first channel and a second channel are formed between the first inner liner and the second inner liner, and the convection enhancement structure includes a first stopper plate arranged in the first inner liner, and the first stopper plate is located between the first channel and the second channel.

[0020] In an embodiment of the present invention, the convection enhancement structure further includes a second stopper plate disposed in the second inner container, and the second stopper plate is located between the first channel and the second channel.

[0021] In an embodiment of the present invention, a first channel and a second channel are formed between the first inner liner and the second inner liner, and the convection enhancement structure includes a second stop plate arranged in the second inner liner, and the second stop plate is located between the first channel and the second channel.

[0022] In an embodiment of the present invention, the at least one heating unit is at least one electric heating rod arranged in the first inner tank, and the distance between the center of the electric heating rod and the center of the first channel is smaller than the distance between the center of the electric heating rod and the center of the second channel.

[0023] In an embodiment of the present invention, the electric heating rod is provided on the first inner container at an end portion close to the first channel, and extends from the end portion toward the interior of the first inner container.

[0024] In an embodiment of the present invention, the hot water supply device includes a water inlet pipe and a water outlet pipe, the water inlet pipe is arranged on the first inner tank and extends from the lower part of the first inner tank into the first inner tank; the water outlet pipe is arranged on the first inner tank and extends from the lower part of the first inner tank into the second inner tank.

[0025] In an embodiment of the present invention, the first flow guide pipe is connected to the water inlet pipe.

[0026] In an embodiment of the present invention, the water inlet pipe has an extension pipe that can extend into the first channel, the first flow guide pipe is sleeved on the extension pipe, and both ends of the first flow guide pipe are spot-welded to the outer wall of the extension pipe.

[0027] In an embodiment of the present invention, the second flow guide pipe is sleeved on the water outlet pipe.

[0028] In an embodiment of the present invention, both ends of the second flow guide pipe are spot-welded to the outer wall of the water outlet pipe.

[0029] In an embodiment of the present invention, the water inlet pipe is arranged opposite to the first channel, the water outlet pipe is arranged opposite to the second channel, and the at least one heating unit is at least one electric heating rod arranged in the first inner tank, and the at least one electric heating rod is arranged on the first inner tank at one end close to the water inlet pipe.

[0030] In an embodiment of the present invention, a single connecting channel is provided between the first inner liner and the second inner liner, and the convection enhancement structure includes a first stop plate arranged in the first inner liner and a second stop plate arranged in the second inner liner, the first stop plate and the second stop plate have a connecting portion, the connecting portion passes through the single connecting channel, and the first stop plate and the second stop plate are arranged opposite to the single connecting channel.

[0031] In an embodiment of the present invention, a single connecting channel is provided between the first inner liner and the second inner liner, and the convection enhancement structure includes a first flow guide member at least partially located in the second inner liner and a second flow guide member at least partially located in the first inner liner, and the first flow guide member and the second flow guide member are staggered relative to the single connecting channel.

[0032] In an embodiment of the present invention, the hot water supply device includes a water inlet pipe and a water outlet pipe, the water inlet pipe is arranged on the first inner tank and extends from the lower part of the first inner tank into the first inner tank; the water outlet pipe is arranged on the first inner tank and extends from the lower part of the first inner tank through the single connecting channel into the second inner tank.

[0033] In an embodiment of the present invention, the first flow guide member is a first flow guide pipe, the second flow guide member is a second flow guide pipe, the first flow guide pipe is connected to the water outlet pipe, and the second flow guide pipe is connected to the first flow guide pipe.

[0034] In an embodiment of the present invention, the first flow guide pipe is sleeved on the water outlet pipe and both ends of the first flow guide pipe are spot welded to the outer wall of the water outlet pipe, and the upper part of the second flow guide pipe is spot welded to the lower outer wall of the first flow guide pipe.

[0035] In an embodiment of the present invention, the first flow guide member is a first flow guide pipe, the second flow guide member is a second flow guide pipe, the second flow guide pipe is connected to the water outlet pipe, and the first flow guide pipe is connected to the second flow guide pipe.

[0036] In an embodiment of the present invention, the second flow guide pipe is sleeved on the water outlet pipe and both ends of the second flow guide pipe are spot welded to the outer wall of the water outlet pipe, and the lower part of the first flow guide pipe is spot welded to the upper outer wall of the second flow guide pipe.

[0037] In an embodiment of the present invention, the at least one heating unit is at least one electric heating rod arranged in the first inner pot, and the electric heating rod is arranged in the first inner pot near the end of the first guide member and extends from the end to the center of the first inner pot.

[0038] The characteristics and advantages of the present invention are:

[0039] 1. The hot water supply device of the present invention, through the design of the convection enhancement structure, can not only improve the convection heat exchange efficiency between the water in the first inner tank and the water in the second inner tank, but also can choose to set a heating unit in the first inner tank and / or the second inner tank, breaking through the shackles of the design concept in the prior art that one inner tank requires a set of heating units. While reducing production costs, it improves the heat exchange effect of the hot water supply device and provides a basis for the hot water supply device to be miniaturized and lightweight. In addition, due to the different densities of cold and hot water, in the inner tank of the water heater, the density of cold water is large and has a downward trend, while the density of hot water is small and has an upward trend, so that the cold and hot water form a natural convection state. The convection enhancement structure of the present invention can reduce external interference in the convection process and significantly enhance the convection effect by setting dedicated descending and ascending channels for cold and hot water.

[0040] 2. In the hot water supply device of the present invention, the heating unit is arranged in the first inner tank and is arranged closer to the first channel relative to the second channel. This can make the temperature of the water in the first inner tank near the first channel relatively high, which is conducive to the convection flow of the water in the first inner tank and the water in the second inner tank through the first channel, improves the diversion speed of the water in the first inner tank and the water in the second inner tank under the action of the convection enhancement structure, and accelerates the heat exchange effect of the hot water supply device.

[0041] 3. In the hot water supply device of the present invention, the first guide pipe and the second guide pipe are both configured so that the water temperature at their inlets is higher than the water temperature at their outlets. The temperature difference between the water in the first inner tank and the water in the second inner tank is utilized to smoothly divert water between the first inner tank and the second inner tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0043] Figure 1 This is a structural diagram of Example 1 of the first embodiment of the hot water supply device of the present invention.

[0044] Figure 2 This is a structural diagram of Example 2 of the first embodiment of the hot water supply device of the present invention.

[0045] Figure 3 This is a structural diagram of Example 3 of the first embodiment of the hot water supply device of the present invention.

[0046] Figure 4This is a schematic diagram of a first structure of the arrangement positions of the first flow guide pipe and the first channel of the hot water supply device of the present invention.

[0047] Figure 5 This is a schematic diagram of a second structure of the first guide pipe and the first channel arrangement positions of the hot water supply device of the present invention.

[0048] Figure 6 This is a schematic diagram of a third structure of the arrangement positions of the first flow guide pipe and the first channel of the hot water supply device of the present invention.

[0049] Figure 7 This is a schematic diagram of a first structure of the second guide pipe and the second channel arrangement positions of the hot water supply device of the present invention.

[0050] Figure 8 This is a schematic diagram of a second structure of the second guide pipe and the second channel of the hot water supply device of the present invention.

[0051] Figure 9 This is a schematic diagram of a third structure of the second guide pipe and the second channel arrangement positions of the hot water supply device of the present invention.

[0052] Figure 10 This is a structural diagram of Example 1 of the second embodiment of the hot water supply device of the present invention.

[0053] Figure 11 This is a structural diagram of Example 2 of the second embodiment of the hot water supply device of the present invention.

[0054] Figure 12 This is a perspective schematic diagram of Example 2 of the second embodiment of the hot water supply device of the present invention.

[0055] Figure 13 This is a structural diagram of Example 3 of the second embodiment of the hot water supply device of the present invention.

[0056] Figure 14 This is a structural schematic diagram of the water inlet pipe of the hot water supply device of the present invention being connected to the first flow guide member.

[0057] Figure 15 This is a structural schematic diagram of the hot water supply device of the present invention in which the water outlet pipe is connected to the second flow guide member.

[0058] Figure 16 This is a structural diagram of Example 1 of the third embodiment of the hot water supply device of the present invention.

[0059] Figure 17 This is a perspective schematic diagram of Example 1 of the third embodiment of the hot water supply device of the present invention.

[0060] Figure 18This is a structural diagram of Example 1 of the fourth embodiment of the hot water supply device of the present invention.

[0061] Figure 19 This is a perspective schematic diagram of the connection structure between the water outlet pipe and the first and second flow guide members of Example 1 of the fourth embodiment of the hot water supply device of the present invention.

[0062] Figure 20 2 is a schematic structural diagram of a fifth embodiment of a hot water supply device according to the present invention.

[0063] Reference numerals and descriptions:

[0064] 1. First liner; 11. First channel; 12. Second channel; 13. First area; 14. Second area; 15. Third area; 16. Fourth area; 17. Single-connected channel; 18. Third channel; 19. Fourth channel; 2. Second liner; 3. Heating unit; 4. Convection enhancement structure; 41. First flow guide; 411. Inlet; 412. Outlet; 413. End; 42. Second flow guide; 421. Inlet; 422. Outlet; 423. End; 43. First stop plate; 44. Second stop plate; 45. Connecting part; 5. Water inlet pipe; 51. Extension pipe; 6. Water outlet pipe; 7. Third liner; 8. Convection enhancement structure; 81. Third flow guide; 82. Fourth flow guide; F1. Length direction; F2. Height direction. DETAILED DESCRIPTION

[0065] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0066] It should be noted that, in the description of the present invention, the terms "first," "second," etc., are used solely for descriptive purposes and to distinguish similar objects. There is no order of precedence between the two, nor should they be understood to indicate or imply relative importance. Furthermore, in the description of the present invention, unless otherwise specified, "at least one" means one or more, and "a plurality" means two or more. The use of the term "may" herein is intended to indicate that any attribute described in "may" is optional.

[0067] like Figures 1 to 3As shown, the present invention proposes a hot water supply device, which includes a first inner tank 1, a second inner tank 2, at least one heating unit 3, and a convection enhancement structure 4, wherein: the second inner tank 2 is located above the first inner tank 1 and is connected to the first inner tank 1; the at least one heating unit 3 is used to heat the water in the hot water supply device; the convection enhancement structure 4 can enhance the convection of water in the first inner tank 1 and the water in the second inner tank 2.

[0068] Specifically, the first inner liner 1 and the second inner liner 2 are horizontally arranged, i.e., the horizontal length of the inner liner is greater than the height of the inner liner. The hot water supply device has at least one heating unit 3, i.e., the heating unit 3 can be disposed in the first inner liner 1, the second inner liner 2, or both, without limitation. The convection enhancement structure 4 is used to enhance the convection flow of water in the first inner liner 1 and the water in the second inner liner 2, accelerating the convection of water in the hot water supply device, thereby improving the heat exchange effect.

[0069] The hot water supply device of the present invention not only improves the convective heat exchange efficiency between the water in the first inner tank 1 and the water in the second inner tank 2, but also allows the optional installation of a heating unit 3 in the first inner tank 1 and / or the second inner tank 2, breaking through the shackles of the prior art design concept that one inner tank requires a set of heating units. While reducing production costs, it improves the heat exchange effect of the hot water supply device and provides a basis for the hot water supply device to be miniaturized and lightweight. In addition, due to the different densities of cold and hot water, in the inner tank of the hot water supply device, the density of cold water is large and tends to decrease, while the density of hot water is small and tends to increase, so that the cold and hot water form a state of natural convection. The convection enhancement structure 4 of the present invention, by providing dedicated descending and ascending channels for cold and hot water in the inner tank, can reduce external interference in the cold and hot water convection process and significantly enhance the convection effect.

[0070] According to one embodiment of the present invention, Figure 1 As shown, a first channel 11 and a second channel 12 are formed between the first inner liner 1 and the second inner liner 2 , and the convection enhancement structure 4 includes a first flow guide 41 at least partially located in the second inner liner 2 , and the first flow guide 41 is communicated with the first channel 11 .

[0071] In the present invention, along the length direction F1 of the first inner tank 1 and / or the second inner tank 2, the first channel 11 and the second channel 12 are respectively arranged close to the ends of the first inner tank 1 and / or the second inner tank 2, so that the water in the first inner tank 1 and the water in the second inner tank 2 can be convectively flowed to the greatest extent, avoiding the temporary storage or slow convection of the water at the end of the first inner tank 1 and the water at the end of the second inner tank 2, which affects the overall heat exchange efficiency of the hot water supply device.

[0072] Specifically, in this embodiment, the first flow guide 41 is a first flow guide tube, which is a tubular body and is configured to communicate with the first channel 11 to achieve the purpose of guiding the water in the first inner tank 1 to the second inner tank 2. The first flow guide tube includes an inlet 411 and an outlet 412.

[0073] The inventors discovered that the water in a horizontally placed inner tank exhibits multiple temperature stratification along the height of the tank. For example, when the water in the hot water supply device is not undergoing convection, the temperature of the water in the first inner tank 1 and the water in the second inner tank 2 gradually decrease from bottom to top. When the first inner tank 1 is equipped with a heating unit 3 but the second inner tank 2 is not, the average temperature of the water in the second inner tank 2 will be lower than the average temperature of the water in the first inner tank 1. However, due to the multiple temperature stratification of the water in the inner tanks, the water temperature in the middle and upper portions of the first inner tank 1 is generally higher than the water temperature in the middle and upper portions of the second inner tank 2.

[0074] When the heating unit 3 is arranged in the first inner tank 1, the first guide tube provides an ascending channel for the hot water in the first inner tank 1 to rise to the second inner tank 2, and the second channel 12 provides a descending channel for the cold water in the second inner tank 2 to descend to the first inner tank 1. The setting of the first guide member 41 can reduce external interference in the surrounding cold and hot water convection process during the process of hot water rising from the first inner tank 1 to the second inner tank 2, and significantly enhance the convection effect between the first inner tank 1 and the second inner tank 2.

[0075] In order to smoothly realize water diversion between the first inner liner 1 and the second inner liner 2 , based on this, in this embodiment, the first diversion pipe is configured so that the water temperature at the inlet 411 is higher than the water temperature at the outlet 412 .

[0076] In a possible embodiment, if Figure 4 As shown, the first flow guide pipe is arranged in the first channel 11 , the outlet 412 of the first flow guide pipe is located in the second inner container 2 , and the inlet 411 of the first flow guide pipe is arranged in the first inner container 1 .

[0077] In another possible embodiment, Figure 5 As shown, the outlet 412 of the first flow guide tube is located in the second inner container 2 , and the inlet 411 of the first flow guide tube is arranged in the first channel 11 .

[0078] In another possible embodiment, Figure 6 As shown, the outlet 412 of the first flow guide tube is located in the second inner container 2 , and the inlet 411 of the first flow guide tube is connected to the upper portion of the first channel 11 .

[0079] In this embodiment, the water in the first inner tank 1 is guided to the second inner tank 2 through the first guide member 21. After the water is mixed in the second inner tank 2, it flows back to the first inner tank 1 from the second channel 12. The present invention utilizes the temperature difference between the water in the first inner tank 1 and the water in the second inner tank 2, and by setting the first guide member 41, the convection flow rate of the water between the first inner tank 1 and the second inner tank 2 is increased, thereby improving the heat exchange efficiency of the hot water supply device.

[0080] According to another embodiment of the present invention, Figure 2 As shown, Figure 1 The embodiment is different in that: the convection enhancement structure 4 further includes a second flow guide 42 at least partially located in the first inner liner 1 , and the second flow guide 42 is communicated with the second channel 12 .

[0081] Specifically, the second flow guide 42 is a second flow guide tube, which includes an inlet 421 and an outlet 422. In this embodiment, when the heating unit 3 is disposed in the first inner tank 1, the first flow guide tube provides an ascending channel for the hot water in the first inner tank 1 to rise to the second inner tank 2, and the second flow guide tube provides a descending channel for the cold water in the second inner tank 2 to descend to the first inner tank 1. The coordinated arrangement of the first flow guide 41 and the second flow guide 42 can reduce external interference in the convection process of cold and hot water around them during the process of hot water rising from the first inner tank 1 to the second inner tank 2 and cold water descending from the second inner tank 2 to the first inner tank 1, thereby significantly enhancing the convection effect between the first inner tank 1 and the second inner tank 2.

[0082] Similar to the principle of setting the position of the first guide tube mentioned above, in order to smoothly achieve the function of guiding the flow, in a feasible embodiment, as shown in FIG. Figure 7 As shown, the second flow guide pipe is arranged in the second channel 12 , the outlet 422 of the second flow guide pipe is located in the first inner container 1 , and the inlet 421 of the second flow guide pipe is located in the second inner container 2 .

[0083] In another possible embodiment, Figure 8 As shown, the outlet 422 of the second flow guide tube is located in the first inner container 1 , and the inlet 421 of the second flow guide tube is located in the second channel 12 .

[0084] In another possible embodiment, Figure 9 As shown, the outlet 422 of the second flow guide tube is located in the first inner container 1 , and the inlet 421 of the second flow guide tube is connected to the lower part of the second channel 12 .

[0085] In this embodiment, the water in the first inner tank 1 is guided to the second inner tank 2 through the first guide member 41. After the water is mixed in the second inner tank 2, it flows back to the first inner tank 1 through the second guide member 42. The present invention utilizes the temperature difference between the water in the first inner tank 1 and the water in the second inner tank 2, and by setting the first guide member 41 and the second guide member 42, the convection flow rate of the water between the first inner tank 1 and the second inner tank 2 is increased, thereby improving the heat exchange efficiency of the hot water supply device.

[0086] According to another embodiment of the present invention, Figure 3 As shown, a first channel 11 and a second channel 12 are formed between the first inner container 1 and the second inner container 2. Figure 1 and Figure 2 The difference between the embodiment of the present invention and the embodiment of the present invention is that the convection enhancement structure 4 includes a second flow guide 42 at least partially located in the first inner liner 1, and the second flow guide 42 is in communication with the second channel 12. In this embodiment, the positioning of the first channel 11 and the second channel 12, as well as the structure of the second flow guide 42 and the positions of its inlet 421 and outlet 422 in the first inner liner 1 and the second inner liner 2 are the same as those in the above embodiment and will not be repeated here.

[0087] In this embodiment, when the heating unit 3 is arranged in the first inner tank 1, the water in the first inner tank 1 is directed to the second inner tank 2 through the first channel 11. The first channel 11 provides an ascending flow channel for the hot water in the first inner tank 1 to rise to the second inner tank 2. After the water is mixed in the second inner tank 2, it is directed to the first inner tank 1 from the second guide member 42. The present invention utilizes the temperature difference between the water in the first inner tank 1 and the water in the second inner tank 2, and by setting the second guide member 42, a descending channel is provided for the cold water in the second inner tank 2 to descend into the first inner tank 1, thereby reducing external interference in the convection process of cold and hot water around it, significantly enhancing the convection effect between the first inner tank 1 and the second inner tank 2, and improving the heat exchange efficiency of the hot water supply device.

[0088] In the present invention, Figures 1 to 3 In the embodiment, the outer diameter of the first flow guide tube is smaller than the inner diameter of the first channel 11; the outer diameter of the second flow guide tube is smaller than the inner diameter of the second channel 12. This structural design allows water in the first inner pot 1 to flow more smoothly along the first flow guide tube into the second inner pot 2, and allows water in the second inner pot 2 to flow more smoothly back into the first inner pot 1 along the second flow guide tube.

[0089] According to one embodiment of the present invention, Figure 10As shown, a first channel 11 and a second channel 12 are formed between the first inner liner 1 and the second inner liner 2 , and the convection enhancement structure 4 includes a first stop plate 43 arranged in the first inner liner 1 , and the first stop plate 43 is located between the first channel 11 and the second channel 12 .

[0090] In the present invention, along the length direction F1 of the first inner tank 1 and / or the second inner tank 2, the first channel 11 and the second channel 12 are respectively arranged close to the ends of the first inner tank 1 and / or the second inner tank 2, so that the water in the first inner tank 1 and the water in the second inner tank 2 can be convectively flowed to the greatest extent, avoiding the temporary storage or slow convection of the water at the end of the first inner tank 1 and the water at the end of the second inner tank 2, which affects the overall heat exchange efficiency of the hot water supply device.

[0091] Specifically, in this embodiment, the first stop plate 43 is a flat plate with an arc-shaped outer edge that is substantially matched with the inner top surface of the first inner liner 1. The first stop plate 43 is vertically arranged in the first inner liner 1 along the height direction F2 of the first inner liner 1 and is connected to the inner top wall of the first inner liner 1. The lower part of the first stop plate 43 and the inner bottom wall of the first inner liner 1 have a certain flow space for the convection flow of the water body. The first stop plate 43 divides the first inner liner 1 into a first area 13 and a second area 14 located on both sides thereof. The first channel 11 and the first area 13 is connected, the second channel 12 is connected to the second area 14, and the first stop plate 43 forms a barrier wall, which divides the temperature of the water in the first inner pot 1 into different temperatures on both sides of the first stop plate 43. That is, the temperature of the water in the first area 13 or the second area 14 of the first inner pot 1, where the heating unit 3 is located, will be higher than that of the other area, thereby increasing the temperature difference between the water in the first inner pot 1 and the water in the second inner pot 2, and accelerating the convection flow of the water in the first inner pot 1 and the water in the second inner pot 2. Through the design of the first stop plate 43, this embodiment forms a descending area and an ascending area dedicated to cold and hot water in the first inner pot 1, which can reduce external interference in the convection process of cold and hot water and significantly enhance the convection effect.

[0092] According to another embodiment of the present invention, Figure 11 and Figure 12 As shown, Figure 10 The difference between the embodiment of the present invention and the embodiment of the present invention is that the convection enhancement structure 4 further includes a second stop plate 44 provided in the second inner liner 2 , and the second stop plate 44 is located between the first channel 11 and the second channel 12 .

[0093] Specifically, the second stop plate 44 is a flat plate with an arc-shaped outer edge that roughly matches the inner bottom surface of the second inner liner 2. The second stop plate 44 is vertically arranged in the second inner liner 2 along the height direction F2 of the second inner liner 2 and is connected to the inner bottom wall of the second inner liner 2. Its upper part and the inner top wall of the second inner liner 2 have a certain flow space to facilitate the convection flow of water. The second stop plate 44 separates the second inner liner 2 into a third area 15 and a fourth area 16 located on both sides thereof. The first channel 11 is connected to the third area 15, and the second channel 12 is connected to the fourth area 16. The second stop plate 44 forms a blocking wall, which realizes that the temperature of the water in the second inner liner 2 is divided into different temperatures on both sides of the second stop plate 44, so as to accelerate the convection flow of water in the first inner liner 1 and the water in the second inner liner 2. In this embodiment, through the design of the first stop plate 43 and the second stop plate 44, a descending area and an ascending area dedicated to cold and hot water are formed in the first inner tank 1 and the second inner tank 2 respectively, which can reduce external interference in the convection process of cold and hot water and significantly enhance the convection effect.

[0094] According to yet another embodiment of the present invention, Figures 10 to 12 The difference of the embodiment is that: in this embodiment, the convection enhancement structure 4 includes a second stopper plate 44 provided in the second inner container 2, and the second stopper plate 44 is located between the first channel 11 and the second channel 12. The arrangement positions of the first channel 11 and the second channel 12, as well as the structure and flow guiding principle of the second stopper plate 44 are the same as those in the above embodiment and will not be described in detail here. Figure 13 In this embodiment, the second stopper plate 44 is designed to form a descending area and an ascending area dedicated to cold and hot water in the second inner tank 2, which can reduce external interference in the convection process of cold and hot water and significantly enhance the convection effect.

[0095] According to one embodiment of the present invention, at least one heating unit 3 is at least one electric heating rod arranged in the first inner tank 1, and the distance between the center of the electric heating rod and the center of the first channel 11 is smaller than the distance between the center of the electric heating rod and the center of the second channel 12.

[0096] In the present invention, Figures 1 to 3 ,as well as Figures 10 to 13 In the embodiment, the electric heating rod is arranged in the first inner tank 1 and is arranged closer to the first channel 11 relative to the second channel 12, so that the temperature of the water in the first inner tank 1 near the first channel 11 can be relatively high, which is beneficial to the convection flow of water in the first inner tank 1 and the water in the second inner tank 2 through the first channel 11, thereby increasing the diversion speed of water in the first inner tank 1 and the water in the second inner tank 2 under the action of the convection strengthening structure 4, and accelerating the heat exchange effect of the hot water supply device.

[0097] Specifically, the electric heating rod is disposed on the first inner container 1 at an end portion near the first channel 11 and extends from this end portion into the interior of the first inner container. Of course, in other embodiments, the position of the electric heating rod in the first inner container 1 can also be adjusted as needed, as long as the distance between the electric heating rod and the second channel 12 is greater than the distance between the electric heating rod and the first channel 11.

[0098] According to one embodiment of the present invention, the hot water supply device includes a water inlet pipe 5 and a water outlet pipe 6. The water inlet pipe 5 is provided on the first inner tank 1 and extends from the lower portion of the first inner tank 1 into the first inner tank 1; the water outlet pipe 6 is provided on the first inner tank 1 and extends from the lower portion of the first inner tank 1 into the second inner tank 2. Figures 1 to 3 ,as well as Figures 10 to 13 shown.

[0099] Specifically, the water inlet pipe 5 is arranged opposite to the first channel 11, and is used to supply water to the hot water supply device. The water outlet pipe 6 is arranged opposite to the second channel 12, and is used to conduct water in the hot water supply device out of the hot water supply device. In this embodiment, at least one heating unit 3 arranged in the first inner tank 1 is an electric heating rod, which is arranged on the first inner tank 1 and close to one end of the water inlet pipe 5. Since the water inlet pipe 5 is arranged opposite to the first channel 11, the electric heating rod is arranged near the end of the water inlet pipe 5, which can not only quickly heat the water entering the first inner tank 1 and increase the water temperature, but also relatively increase the temperature of the water in the first inner tank 1 near the first channel 11, thereby achieving the effect of accelerating the flow of water in the first inner tank 1 through the first channel 11 and the diversion flow of water in the second inner tank 2.

[0100] exist Figure 1 、 Figure 2 、 Figure 4 and Figure 5 In the embodiment, the first flow guide pipe can be connected to the water inlet pipe 5. Specifically, Figure 14 As shown, the water inlet pipe 5 has an extension pipe 51 that can extend into the first channel 11 , the first flow guide pipe is sleeved on the extension pipe 51 and the two ends 413 of the first flow guide pipe are spot welded to the outer wall of the extension pipe 51 respectively.

[0101] exist Figure 2 、 Figure 3 ,as well as Figure 7 and Figure 8 In the embodiment, the second flow guide pipe is sleeved on the water outlet pipe 6. Specifically, Figure 15 As shown, the two end portions 423 of the second flow guide pipe are spot-welded to the outer wall of the water outlet pipe 6 .

[0102] According to one embodiment of the present invention, Figure 16 and Figure 17As shown, a single connecting channel 17 is provided between the first inner liner 1 and the second inner liner 2, and the convection enhancement structure 4 includes a first stop plate 43 arranged in the first inner liner 1 and a second stop plate 44 arranged in the second inner liner 2, and the first stop plate 43 and the second stop plate 44 have a connecting portion 45, and the connecting portion 45 passes through the single connecting channel 17, and the first stop plate 43 and the second stop plate 44 are arranged opposite to the single connecting channel 17.

[0103] Specifically, along the length direction F1 of the first inner tank 1 and / or the second inner tank 2, the single connecting channel 17 is located in the middle of the first inner tank 1 and the second inner tank 2, and connects the first inner tank 1 and the second inner tank 2; in this embodiment, the hot water supply device includes an inlet pipe 5 and an outlet pipe 6, the inlet pipe 5 is arranged on the first inner tank 1 and extends from the lower part of the first inner tank 1 into the first inner tank 1; the outlet pipe 6 is arranged on the first inner tank 1 and extends from the lower part of the first inner tank 1 into the second inner tank 2 through the single connecting channel 17.

[0104] The first stop plate 43 is a flat plate with an arc-shaped outer edge that roughly matches the inner top surface of the first inner liner 1. The first stop plate 43 is vertically arranged in the first inner liner 1 along the height direction F2 of the first inner liner 1. The lower part of the stop plate 43 and the inner bottom wall of the first inner liner 1 have a certain flow space to facilitate the convection flow of water. The first stop plate 43 divides the first inner liner 1 into a first area 13 and a second area 14 located on both sides thereof. The first channel 11 is connected to the first area 13, and the second channel 12 is connected to the second area 14. The first stop plate 43 forms a blocking wall, which realizes that the temperature of the water in the first inner liner 1 is divided into different temperatures on both sides of the first stop plate 43. That is, the temperature of the water in the first area 13 where the heating unit 3 is provided in the first inner liner 1 is higher than the temperature of the water in the second area 14 where the heating unit 3 is not provided, thereby increasing the temperature difference between the water in the first inner liner 1 and the water in the second inner liner 2, and accelerating the convection flow of the water in the first inner liner 1 and the water in the second inner liner 2.

[0105] The second stop plate 44 is a flat plate with an arc-shaped outer edge that roughly matches the inner bottom surface of the second inner liner 2. The second stop plate 44 is vertically arranged in the second inner liner 2 along the height direction F2 of the second inner liner 2 and is connected to the first stop plate 43 through the connecting part 45. The upper part of the second stop plate 44 and the inner top wall of the second inner liner 2 have a certain flow space to facilitate the convection flow of water. The second stop plate 44 separates the second inner liner 2 into a third area 15 and a fourth area 16 located on both sides thereof. The first channel 11 is connected to the third area 15, and the second channel 12 is connected to the fourth area 16. The second stop plate 44 forms a blocking wall, which realizes that the temperature of the water in the second inner liner 2 is divided into different temperatures on both sides of the second stop plate 44 to accelerate the convection flow of water in the first inner liner 1 and the water in the second inner liner 2.

[0106] In this embodiment, the first stop plate 43 and the second stop plate 44 are disposed vertically opposite each other relative to the single connecting channel 17, thereby connecting the first area 13 of the first inner pot 1 with the third area 15 of the second inner pot 2 via the single connecting channel 17. Water in the first inner pot 1 can flow into the third area 15 of the second inner pot 2 via the single connecting channel 17. Meanwhile, the fourth area 16 of the second inner pot 2 is connected to the second area 14 of the first inner pot 1 via the single connecting channel 17. Water in the second inner pot 2 can flow back to the second area 14 of the second inner pot 2 via the single connecting channel 17. Through the design of the first stop plate 43, the connecting portion 45, and the second stop plate 44, this embodiment forms a descending area and an ascending area dedicated to cold and hot water in the first inner pot 1 and the second inner pot 2, respectively. This reduces external interference in the convection of cold and hot water and significantly enhances the convection effect.

[0107] In another variation of this embodiment, the convection enhancement structure 4 may only include a first stop plate 43 located in the first inner liner 1, or, in yet another variation, the convection enhancement structure 4 may only include a second stop plate 44 located in the second inner liner 2. The working principles of these embodiments are the same as those of the above-mentioned embodiments, and no drawings are provided here for illustration.

[0108] According to one embodiment of the present invention, Figure 18 As shown, a single connecting channel 17 is provided between the first inner liner 1 and the second inner liner 2, and the convection enhancement structure 4 includes a first flow guide 41 at least partially located in the second inner liner 2 and a second flow guide 42 at least partially located in the first inner liner 1, and the first flow guide 41 and the second flow guide 42 are staggered relative to the single connecting channel 17.

[0109] Specifically, along the length direction F1 of the first inner tank 1 and / or the second inner tank 2, the single connecting channel 17 is located in the middle of the first inner tank 1 and the second inner tank 2, and connects the first inner tank 1 and the second inner tank 2; in this embodiment, the hot water supply device includes an inlet pipe 5 and an outlet pipe 6, the inlet pipe 5 is arranged on the first inner tank 1 and extends from the lower part of the first inner tank 1 into the first inner tank 1; the outlet pipe 6 is arranged on the first inner tank 1 and extends from the lower part of the first inner tank 1 into the second inner tank 2 through the single connecting channel 17.

[0110] Please refer to Figure 19 As shown, in a feasible embodiment, the first flow guide member 41 is a first flow guide pipe, the second flow guide member 42 is a second flow guide pipe, the first flow guide pipe is connected to the water outlet pipe 6, and the second flow guide pipe is connected to the first flow guide pipe.

[0111] Specifically, the first guide pipe is sleeved on the outlet pipe 6 and the two ends 413 of the first guide pipe are spot-welded to the outer wall of the outlet pipe 6 respectively, and the upper part of the second guide pipe is spot-welded to the lower outer wall of the first guide pipe.

[0112] In this embodiment, water in the first area 13 of the first inner container 1 can flow into the second inner container 2 through the first flow conduit, and water in the second inner container 2 can flow back into the first inner container 1 through the second flow conduit.

[0113] In another feasible embodiment, the first flow guide member 41 is a first flow guide pipe, the second flow guide member is a second flow guide pipe, the second flow guide pipe is connected to the water outlet pipe 6, and the first flow guide pipe is connected to the second flow guide pipe.

[0114] Specifically, the second guide pipe is sleeved on the outlet pipe 6 and both ends of the second guide pipe are spot welded to the outer wall of the outlet pipe 6, and the lower part of the first guide pipe is spot welded to the upper outer wall of the second guide pipe. The working principle of this embodiment is the same as that of the first guide pipe. Figures 18 and 19 The working principle of the embodiment is similar, and no drawings are provided here for illustration.

[0115] Of course, in another variation of this embodiment, the convection enhancement structure 4 may only include a second flow guide member 42 located in the first inner tank 1, and the second flow guide member 42 is a second flow guide tube and is sleeved on the water outlet pipe 6, or, in yet another variation, the convection enhancement structure 4 may only include a first flow guide member 41 located in the second inner tank 2, and the first flow guide member 41 is a first flow guide tube and is sleeved on the water outlet pipe 6, and no further drawings are provided.

[0116] In this embodiment, the at least one heating unit 3 is at least one electric heating rod disposed in the first inner pot 1. The electric heating rod is disposed in the first inner pot 1 near the end of the first flow guide 41 and extends from this end toward the center of the first inner pot 1. In the present invention, disposing the electric heating rod in the first inner pot 1 near the end of the first flow guide 41 can ensure that the temperature of the water in the first inner pot 1 near the first flow guide 41 is relatively high, which facilitates the convection flow of the water in the first inner pot 1 and the water in the second inner pot 2, increases the flow rate of the water in the first inner pot 1 and the water in the second inner pot 2 under the action of the convection enhancement structure 4, and accelerates the heat exchange effect of the hot water supply device.

[0117] According to one embodiment of the present invention, Figure 20 As shown, the hot water supply device also includes a third inner tank 7 arranged above the second inner tank 2. The third inner tank 7 is connected to the second inner tank 2, and a convection enhancement structure is provided between the third inner tank 7 and the second inner tank 2 to enhance the convection of water in the second inner tank 2 and the water in the third inner tank 7.

[0118] Specifically, in Figure 20 In the embodiment, a third channel 18 and a fourth channel 19 are formed between the second inner liner 2 and the third inner liner 7, and the second convection reinforcement structure 8 includes a third flow guide 81 at least partially located in the third inner liner 7, and a fourth flow guide 82 at least partially located in the second inner liner 2, the fourth flow guide 82 is communicated with the fourth channel 19, and the third flow guide 81 is communicated with the third channel 18.

[0119] In this embodiment, the setting position of the third channel 18 and the fourth channel 19, the structure of the third flow guide 81 and the fourth flow guide 82 and the positions of their inlet and outlet in the third inner liner 7 and the second inner liner 2, and the connection structure of the third flow guide 81 and the fourth flow guide 82 with the water inlet pipe 5 and the water outlet pipe 6 respectively are basically the same as the setting position of the first channel 11 and the second channel 12, the structure of the first flow guide 41 and the second flow guide 42 and the positions of their inlet and outlet in the first inner liner 1 and the second inner liner 2, and the connection structure of the first flow guide 41 and the second flow guide 42 with the water inlet pipe 5 and the water outlet pipe 6 respectively in the above-mentioned embodiment, and will not be repeated here.

[0120] Of course, in another variation of this embodiment, the convection enhancement structure 8 may only include a third flow guide 81 located in the third inner liner 7, or, in yet another variation, the convection enhancement structure 8 may only include a fourth flow guide 82 located in the second inner liner 2, and no drawings are provided.

[0121] According to one embodiment of the present invention, Figure 20The difference between the embodiment of the present invention and the embodiment of the present invention is that the convection enhancement structure 8 can be a third stopper plate arranged in the third inner liner 7, and the structure of the third stopper plate is the same as that of the embodiment of the present invention. Figures 11 to 13 The structure of the second stop plate 44 in the embodiment is basically the same and will not be repeated here.

[0122] According to one embodiment of the present invention, a single connecting channel may be provided between the second inner liner 2 and the third inner liner 7, and the second convection reinforcement structure 8 includes a fourth stop plate arranged in the second inner liner 2 and a third stop plate arranged in the third inner liner 7, and the third stop plate and the fourth stop plate have a connecting portion, which passes through the single connecting channel, and the third stop plate and the fourth stop plate are arranged relative to the single connecting channel.

[0123] The specific structure, position and working principle of the third stop plate and the fourth stop plate of this embodiment are similar to those of the embodiment of the present invention. Figure 16 and Figure 17 The structures, positions and working principles of the first stop plate 43 and the second stop plate 44 are basically the same and will not be described in detail here.

[0124] The above are only several embodiments of the present invention. Those skilled in the art may make various changes or modifications to the embodiments of the present invention based on the contents disclosed in the application documents without departing from the spirit and scope of the present invention.

Claims

1. A hot water supply device, characterized in that: include: First liner; a second inner liner, located above the first inner liner and connected to the first inner liner, wherein the first inner liner and the second inner liner are placed transversely; at least one heating unit for heating water in the hot water supply device, wherein at least one of the heating units is at least one electric heating rod disposed in the first inner tank; A convection enhancement structure can enhance the convection of water in the first inner tank and the water in the second inner tank; a first channel and a second channel are formed between the first inner tank and the second inner tank, and the convection enhancement structure includes a first guide member at least partially located in the second inner tank, and the first guide member is connected to the first channel; the distance between the center of the electric heating rod and the center of the first channel is smaller than the distance between the center of the electric heating rod and the center of the second channel.

2. The hot water supply device according to claim 1, wherein: The convection enhancement structure further includes a second flow guide member at least partially located in the first inner container, and the second flow guide member is communicated with the second channel.

3. The hot water supply device according to any one of claims 1 to 2, characterized in that Along the length direction of the first inner liner and / or the second inner liner, the first channel and the second channel are respectively arranged close to the end of the first inner liner and / or the second inner liner.

4. The hot water supply device according to claim 1, wherein: The first flow guide member is a first flow guide pipe. The first flow guide pipe includes an inlet and an outlet. The first flow guide pipe is configured so that the water temperature at the inlet is higher than the water temperature at the outlet.

5. The hot water supply device according to claim 4, characterized in that The outlet of the first flow guide tube is located in the second inner tank, the inlet of the first flow guide tube is set in the first inner tank, or the inlet of the first flow guide tube is set in the first channel, or the inlet of the first flow guide tube is connected to the upper part of the first channel.

6. The hot water supply device according to claim 2, wherein: The second flow guide member is a second flow guide pipe, which includes an inlet and an outlet. The outlet of the second flow guide pipe is located in the first inner tank, and the inlet of the second flow guide pipe is located in the second inner tank, or the inlet of the second flow guide pipe is located in the second channel, or the inlet of the second flow guide pipe is connected to the lower part of the second channel.

7. The hot water supply device according to claim 5, characterized in that The outer diameter of the first flow guiding tube is smaller than the inner diameter of the first channel.

8. The hot water supply device according to claim 6, wherein: The outer diameter of the second flow guiding pipe is smaller than the inner diameter of the second channel.

9. The hot water supply device according to claim 1, wherein: A first channel and a second channel are formed between the first inner liner and the second inner liner, and the convection enhancement structure includes a first stopper plate arranged in the first inner liner, and the first stopper plate is located between the first channel and the second channel.

10. The hot water supply device according to claim 9, wherein: The convection enhancement structure further includes a second stopper plate disposed in the second inner container, and the second stopper plate is located between the first channel and the second channel.

11. The hot water supply device according to claim 1, wherein: A first channel and a second channel are formed between the first inner liner and the second inner liner, and the convection enhancement structure includes a second stopper plate arranged in the second inner liner, and the second stopper plate is located between the first channel and the second channel.

12. The hot water supply device according to claim 1, wherein The electric heating rod is arranged on the first inner container at an end portion close to the first channel and extends from the end portion toward the interior of the first inner container.

13. The hot water supply device according to claim 2, wherein: The hot water supply device includes a water inlet pipe and a water outlet pipe. The water inlet pipe is arranged on the first inner tank and extends from the lower part of the first inner tank into the first inner tank; the water outlet pipe is arranged on the first inner tank and extends from the lower part of the first inner tank into the second inner tank.

14. The hot water supply device according to claim 13, wherein: The first flow guide member is a first flow guide pipe, and the first flow guide pipe is connected to the water inlet pipe.

15. The hot water supply device according to claim 14, wherein: The water inlet pipe has an extension pipe that can extend into the first channel. The first flow guide pipe is sleeved on the extension pipe, and both ends of the first flow guide pipe are spot-welded to the outer wall of the extension pipe.

16. The hot water supply device according to claim 13, wherein: The second flow guide member is a second flow guide pipe, and the second flow guide pipe is sleeved on the water outlet pipe.

17. The hot water supply device according to claim 16, wherein: Both ends of the second flow guide pipe are spot-welded to the outer wall of the water outlet pipe.

18. The hot water supply device according to claim 13, wherein: The water inlet pipe is arranged opposite to the first channel, the water outlet pipe is arranged opposite to the second channel, and the at least one electric heating rod is arranged on one end of the first inner container close to the water inlet pipe.

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