A type of instantaneous heat body

Abstract

This invention discloses an instant heating element. The heating tube body includes a heating zone and fixed zones located at both ends of the heating zone. The flow-dispersing component is a stainless steel structure. The flow-dispersing component includes a flow-dispersing pipe, an inlet flow-dispersing end cap, and an outlet flow-dispersing end cap. The flow-dispersing pipe is located within the heating tube body, forming a flow gap between the flow-dispersing pipe and the heating tube body. The inlet and outlet flow-dispersing end caps are respectively assembled at both ends of the flow-dispersing pipe. The inlet flow-dispersing end cap has a first water passage, and the outlet flow-dispersing end cap has a second water passage. The first water passage, the flow gap, and the second water passage constitute a water flow channel. This invention allows water to flow closely against the inner wall of the heating tube body when flowing along the flow gap, improving the uniformity of overall water heating and increasing heating efficiency. The use of stainless steel in the flow-dispersing component prevents odor generation during the heating process.

Description

Technical Field

[0001] This invention relates to the field of heating technology, and more specifically to an instantaneous heating element. Background Technology

[0002] Currently, most instant heating elements on the market use plastic end caps and silicone parts, which can release their own odor during the hot water heating process, adversely affecting the taste of the water from reverse osmosis water purifiers.

[0003] For example, Chinese Patent 201921987075.8 discloses a heating tube, which includes a heat-conducting heating tube body and a stainless steel hollow tube disposed inside the heat-conducting heating tube body. Both ends of the stainless steel hollow tube are provided with sealing plugs, and the stainless steel hollow tube and the sealing plugs are in a completely sealed state. It is understood that in order to ensure the sealing performance, the sealing plugs are usually made of plastic or silicone. This leads to the generation of odors during the heating process, which is not conducive to improving the taste of hot water and drinking water. When the heating element is dry-burned, the temperature of the heating zone of the heating element is too high, causing the sealing components to melt and deform slightly, which poses a risk of blocking the water outlet channel and sealing failure. Summary of the Invention

[0004] In order to solve one or more technical problems in the prior art, or at least provide a beneficial alternative, the present invention provides an instant heating element that solves the problem of odor in hot water heated by the instant heating element.

[0005] This invention discloses an instantaneous heating element, comprising:

[0006] The heating tube body includes a heating zone and fixed areas located at both ends of the heating zone;

[0007] A flow-dissipating assembly, which is a stainless steel structural component, includes a flow-dissipating pipe, an inlet flow-dissipating end cap, and an outlet flow-dissipating end cap. The flow-dissipating pipe is located within the heating tube body, and a flow gap is formed between the flow-dissipating pipe and the heating tube body. The inlet flow-dissipating end cap and the outlet flow-dissipating end cap are respectively assembled at both ends of the flow-dissipating pipe. Both the inlet flow-dissipating end cap and the outlet flow-dissipating end cap are located in the fixed area. The inlet flow-dissipating end cap is provided with a first water passage, and the outlet flow-dissipating end cap is provided with a second water passage. The first water passage, the flow gap, and the second water passage constitute a water flow channel.

[0008] An end cap assembly is fixed to both ends of the heating tube body, and a turbulence cavity for limiting the turbulence assembly is formed between the end cap assembly and the heating tube body.

[0009] Room temperature water enters the heating tube body through the end cap assembly, flows through the water flow channel, is heated, and then flows out from the end cap assembly.

[0010] The instantaneous heating element of the present invention also has the following additional technical features:

[0011] The end cap assembly is a stainless steel structural component. The end cap assembly includes an inlet end cap, an outlet end cap, a first sealing element, and a second sealing element. The first sealing element is installed on the inlet end cap, and the second sealing element is installed on the outlet end cap. The inlet turbulence end cap is located within the projected area of ​​the first sealing element along the axial direction of the instantaneous body, and the outlet turbulence end cap is located within the projected area of ​​the second sealing element along the axial direction of the instantaneous body.

[0012] The water inlet end cover is provided with a water inlet pipe, which is installed through the water inlet end cover. A first sealing element is fitted onto one end of the water inlet pipe, and the other end of the water inlet pipe is connected to the outside.

[0013] The water outlet end cap is provided with a water outlet pipe, which is installed through the water outlet end cap. A second sealing element is fitted onto one end of the water outlet pipe, and the other end of the water outlet pipe is connected to the outside.

[0014] The turbulence cavity is formed between the first seal, the second seal and the heating tube body.

[0015] The first and second sealing elements are provided with a water passage and a plug groove. The plug groove is arranged around the water passage. The water inlet pipe and the water outlet pipe are inserted into the plug groove. The water passage connects the water inlet pipe, the water outlet pipe and the flow gap.

[0016] The first sealing element further includes a sealing portion, which includes a first sealing portion sandwiched between the water inlet pipe and the inner wall of the heating pipe body, and a second sealing portion sandwiched between the water inlet end cap and the end of the heating pipe body.

[0017] A floating gap is provided between the end cap assembly and the inlet and outlet turbulence end caps, and the turbulence assembly is movably installed in the turbulence cavity.

[0018] The water inlet turbulence end cap includes an annular first cover body, the outer diameter of the first cover body is larger than the outer diameter of the turbulence tube, the edge of the first cover body is provided with a first folded edge extending away from the turbulence tube, a first flow cavity is formed between the first cover body and the end cap assembly, and the floating gap is formed between the first folded edge and the end cap assembly.

[0019] The water outlet turbulence end cap includes an annular second cover body, the outer diameter of the second cover body is larger than the outer diameter of the turbulence pipe, the edge of the second cover body is provided with a second folded edge extending away from the turbulence pipe, a second flow cavity is formed between the second cover body and the end cap assembly, and the floating gap is formed between the second folded edge and the end cap assembly.

[0020] The water inlet turbulence end cap also includes a first end plug protruding from the middle of the first cover body. The first end plug extends into the turbulence tube and is fitted with the turbulence tube cover. The end face of the first cover body located on the outside of the turbulence tube is provided with a plurality of first water passage holes arranged at intervals along the circumference. The first water passage holes form the first water passage channel.

[0021] The water outlet turbulence end cap also includes a second end plug protruding from the middle of the second cover body. The second end plug extends into the turbulence pipe and is fitted with the turbulence pipe cover. The end face of the second cover body located outside the turbulence pipe is provided with a plurality of second water passage holes arranged at intervals along the circumference. The second water passage holes form the second water passage channel.

[0022] A cavity is formed inside the turbulence tube, and a water inlet hole is provided on the water inlet turbulence end cap. The water inlet hole connects the water flow channel and the cavity.

[0023] The instant heating element also includes a temperature control component for controlling the power supply to and from the heating tube body. The temperature control component includes a first temperature control switch that can be automatically reset and a second temperature control switch that can be manually reset. The temperature sensing ends of the first and second temperature control switches are both in contact with the outer wall of the heating tube body.

[0024] By adopting the above technical solution, the present invention has the following beneficial effects:

[0025] The instant heating element of this application, by incorporating a baffle tube within the heating tube body, reduces the internal space of the heating tube body, allowing water to flow closely against the inner wall of the heating tube body as it flows along the flow gap. This improves the uniformity of overall water heating and increases heating efficiency. The baffle tube has a first water passage and a second water passage on its inlet and outlet end caps, respectively. This allows water to enter the flow gap through the first water passage and flow out through the second water passage, promoting close contact between the water and the inner wall of the heating tube body. The baffle assembly uses stainless steel components to prevent odor generation during heating. The heating tube body has… There is a heating zone with a heating wire wound around it and a fixed zone located at both ends of the heating element. A turbulence cavity is formed between the end cap assembly and the heating tube body, indicating that the end cap assembly is located at both ends of the turbulence assembly. Since the inlet turbulence end cap and the outlet turbulence end cap are located in the fixed zone, it indicates that the end cap assembly is located in the fixed zone. When the heating element is dry-burned, the heating zone will generate high temperature. The end cap assembly being located in the fixed zone can avoid the impact of high temperature on the end cap assembly and prevent the seal from deforming due to heat. Furthermore, the inlet turbulence end cap and the outlet turbulence end cap being located in the fixed zone can prevent high temperature from being conducted to the end cap assembly through the turbulence end cap, thus avoiding the occurrence of heat deformation of the end cap assembly.

[0026] The inlet and outlet caps are made of stainless steel to prevent water from developing odors due to the structural components themselves (heating causes odor to be generated), which would reduce the taste of the water and ensure the quality of drinking water. The inlet turbulence cap is located within the projected area of ​​the first seal along the axial direction of the instantaneous heating element, indicating that the outer diameter of the inlet turbulence cap is smaller than that of the first seal. This allows the end of the inlet turbulence cap to abut against the end of the first seal, which then acts as a limit for the inlet turbulence cap. The outlet turbulence cap is located within the projected area of ​​the second seal along the axial direction of the instantaneous heating element, serving the same purpose. The first and second seals, together with the heating tube body, form a turbulence cavity to limit the range of motion of the turbulence assembly, preventing excessive swaying of the turbulence assembly within the heating tube body.

[0027] The first seal has a water passage in the middle for water to pass through, and the first seal also has a plug groove for connecting with the water inlet pipe. The first seal is installed on the water inlet pipe through the plug groove. The first sealing part achieves the seal between the water inlet pipe and the inner wall of the heating tube body. The second sealing part achieves the seal between the end of the heating tube body and the bottom of the water inlet end cap. The first seal achieves double sealing, and the second seal has the same function as above.

[0028] A floating gap is left between the end cap assembly and the inlet baffle end cap, and between the end cap assembly and the outlet baffle end cap. The baffle assembly is movably installed in the baffle cavity. The floating gap allows the baffle assembly to float slightly within the baffle cavity. When water flows from the end cap assembly into the heating tube body from the instantaneous element, the water flow impacts the baffle assembly, pushing it to move. The floating gap provides the baffle assembly with space to move. Changes in water flow, the rebound of the baffle assembly after touching the end cap assembly, or the sinking of the baffle assembly under its own weight will all cause the baffle assembly to move within the heating tube body. When the baffle assembly moves within the heating tube body, it will drive the water around the baffle assembly to move, allowing the water within the heating tube body to mix and be heated more fully and evenly, ensuring the stability of the outlet water temperature.

[0029] The outer diameter of the first cover is larger than the outer diameter of the baffle tube. The first cover limits the baffle tube in the horizontal direction. The first flow cavity between the first cover and the end cover assembly ensures that the water in the flow gap can smoothly enter the end cover assembly. The second cover has the same function.

[0030] The baffle assembly in this application is a stainless steel structure. The inlet and outlet baffle end caps are installed at both ends of the baffle pipe. The rigid connection between the inlet and outlet baffle end caps and the baffle pipe is difficult to achieve a complete seal. A small amount of water may enter the cavity of the baffle pipe through the gap between the inlet baffle end cap and the baffle pipe. This small amount of water vaporizes when heated, increasing the internal pressure of the cavity. Combined with the thermal expansion and contraction of the air inside the cavity, this can adversely affect the baffle pipe over time, potentially causing it to crack. By providing an inlet hole, water enters the cavity during the water intake process until it is full. Once the cavity is full, the water remains relatively still and does not affect the hot water outlet at the other end of the baffle pipe.

[0031] The instant heating element also includes a temperature control component for controlling the power supply to and from the heating element body. The temperature control component includes a first temperature control switch that can be automatically reset and a second temperature control switch that can be manually reset. The temperature sensing ends of both the first and second temperature control switches are in contact with the outer wall of the heating element body. By setting two temperature control switches with different control methods, the reliability of temperature control can be improved. For example, if the first temperature control switch fails and cannot cut off the power to the instant heating element, the power can be cut off through the second temperature control switch, which can avoid danger and improve safety. Attached Figure Description

[0032] The accompanying drawings, which are included to provide a further understanding of the invention and form part of this invention, illustrate exemplary embodiments of the invention and are used to explain the invention, but do not constitute an undue limitation of the invention. In the drawings:

[0033] Figure 1 This is an exploded schematic diagram of the components of the instantaneous heat body according to the first embodiment of this application;

[0034] Figure 2 This is a schematic diagram of the structure of the second sealing element according to one embodiment of this application;

[0035] Figure 3 This is a schematic diagram of the structure of the water inlet turbulence-disrupting end cap according to one embodiment of this application;

[0036] Figure 4 This is a schematic diagram of the water outlet turbulence-disrupting end cap according to one embodiment of this application;

[0037] Figure 5 This is a cross-sectional schematic diagram of the assembly of the baffle tube and the heating tube body according to one embodiment of this application;

[0038] Figure 6 for Figure 5 A partially enlarged structural diagram;

[0039] Figure 7This is a schematic diagram of the structure of the baffle tube according to one embodiment of this application;

[0040] Figure 8 This is an explosion diagram of the components of the instantaneous heat body according to the second embodiment of this application;

[0041] Figure 9 for Figure 8 A cross-sectional schematic diagram of the instantaneous heat source.

[0042] Figure label:

[0043] 10-Shell, 11-Heating tube body, 12-Baffle tube, 13-Inlet cap, 14-Outlet cap, 15-First seal, 16-Second seal, 17-Floating gap, 18-First flow chamber, 19-Flow gap, 20-First end cap, 21-Second end cap, 22-First fixed cap, 23-Second fixed cap, 24-Baffle chamber, 25-Second flow chamber, 100-First mounting hole, 110-Second mounting hole, 121-Inlet baffle cap, 122-Outlet baffle cap, 1211-First water passage hole, 1212-First cover body, 1213-First end plug, 1214-First flange, 1221-First... Two water passages, 1222-Second cover, 1223-Second end plug, 1224-Second folded edge, 124-Second limiting rib, 125-Water inlet, 131-Water inlet pipe, 141-Water outlet pipe, 161-Water passage, 162-Plug-in groove, 163-First sealing part, 164-Second sealing part, 200-First temperature control switch, 210-Second temperature control switch, 201-First sleeve part, 202-Flow gathering cavity, 203-Inlet sleeve pipe, 211-Second sleeve part, 212-Slow flow cavity, 213-Outlet sleeve pipe, 221-First step part, 231-Second step part, 214-Fixing groove, 215-Temperature probe. Detailed Implementation

[0044] To more clearly illustrate the overall concept of the present invention, a detailed description will be provided below with reference to the accompanying drawings and examples.

[0045] To better understand the above-mentioned objectives, features, and advantages of this application, the application will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0046] It should be noted that many specific details are set forth in the following description in order to provide 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 scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0047] Furthermore, in the description of this invention, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0048] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0049] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral unit; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. However, specifying a direct connection indicates that the two connected entities do not establish a connection relationship through a transitional structure, but are connected solely by a connecting structure to form a whole. For those skilled in the art, the specific meaning of the above terms in this invention can be understood according to the specific circumstances.

[0050] In this invention, unless otherwise expressly specified and limited, the first feature "on" or "below" the second feature may be in direct contact with the first and second features, or indirect contact through an intermediate medium. In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0051] like Figures 1 to 8As shown, this application provides an instant heating element, which includes, from the outside to the inside, a shell 10, a heating tube body 11, and a baffle tube 12. The baffle tube 12 is confined within the heating tube body 11, and the baffle tube 12 and the heating tube body 11 together are fixed within the shell 10. The heating tube body 11 includes a heating zone and fixed zones located at both ends of the heating zone. The heating zone is provided with heating wires, which can heat the water flowing through it when energized.

[0052] Compared to water flowing along the internal cavity of the heating tube body 11, this application provides a turbulence tube 12, which forms a narrow flow gap 19 between the turbulence tube 12 and the heating tube body 11. When water flows along the flow gap 19, it can adhere to the inner wall of the heating tube body 11 and fully contact the inner wall of the heating tube body 11, which is beneficial to improving the uniformity and efficiency of heating.

[0053] Regarding the assembly method of the housing 10, the heating tube body 11 and the baffle tube 12, this application does not make specific limitations. For example, any one or more of the following methods can be used.

[0054] Implementation Method 1:

[0055] like Figure 1 As shown, both ends of the heating tube body 11 are open, and end cap assemblies are fixed at both ends of the heating tube body 11. An eddy cavity 24 for limiting and eddying the eddy component is formed between the end cap assembly and the heating tube body 11. The end cap assembly includes a water inlet end cap 13 located at the bottom and a water outlet end cap 14 located at the top. The water inlet end cap 13 is provided with a water inlet, and the water outlet end cap 14 is provided with a water outlet. Preferably, both the water inlet end cap 13 and the water outlet end cap 14 are stainless steel structural parts.

[0056] Furthermore, the end cap assembly also includes a first seal 15 and a second seal 16. To limit the flow-dispersing tube 12, the first seal 15 is provided between the water inlet end cap 13 and the flow-dispersing tube 12, and the second seal 16 is provided between the water outlet end cap 14 and the flow-dispersing tube 12. That is, when the water inlet end cap 13 and the water outlet end cap 14 are installed on both ends of the heating tube body 11, the first seal 15 and the second seal 16 can limit the flow-dispersing tube 12 to prevent the flow-dispersing tube 12 from swaying axially. The first seal 15, the second seal 16 and the heating tube body 11 form the flow-dispersing cavity 24.

[0057] Furthermore, both ends of the housing 10 are open, and the inlet cap 13 and the outlet cap 14 can be fixed to both ends of the housing 10 simultaneously. That is, during assembly, the heating tube body 11 can be first inserted into the housing 10, and then the inlet cap 13 and the outlet cap 14 can be used to close the openings at both ends of the heating tube body 11, while the inlet cap 13 and the outlet cap 14 are fixed to the housing 10 with bolts.

[0058] Preferably, the first sealing element 15 and the second sealing element 16 are silicone sealants, which can improve the sealing effect at both ends of the heating tube body 11, so that water can only enter from the inlet and flow out from the outlet. Figure 1 As shown, the inlet end cap 13 is provided with an inlet pipe 131, which passes through the inlet end cap 13. A first sealing member 15 is fitted onto one end of the inlet pipe 131, and the two are internally connected. The other end of the inlet pipe 131 is connected to the outside for water intake. The inlet end cap 13 is also provided with a first mounting hole 100 for fixing to the housing 10 with bolts. The outlet end cap 14 is provided with an outlet pipe 141, which passes through the outlet end cap 14. A second sealing member 16 is fitted onto one end of the outlet pipe 141, and the two are internally connected. The other end of the outlet pipe 141 is connected to the outside for water outlet. The outlet end cap 14 is also provided with a first mounting hole 100 for fixing to the housing 10 with bolts.

[0059] Implementation Method Two:

[0060] like Figure 8 and Figure 9 As shown, both ends of the heating tube body 11 are open, and end cap assemblies are fixed to both ends of the heating tube body 11. The end cap assemblies include a first end cap 20, a second end cap 21, a first fixing cap 22, and a second fixing cap 23. The first end cap 20 has an inlet for water inlet, and the second end cap 21 has an outlet for water outlet. The two ends of the turbulence-dissipating tube 12 abut against the first end cap 20 and the second end cap 21 axially. The two ends of the housing 10 are respectively provided with a first fixing cap 22 and a second fixing cap 23, which fix the heating tube body 11 inside the housing 10. That is, during assembly, the first fixing cap 22 can be fitted onto the first end cap 20 and fixed to the housing 10, and the second fixing cap 23 can be fitted onto the second end cap 21 and fixed to the housing 10. The first fixing cap 22 has a through hole corresponding to the inlet of the first end cap 20, and the second fixing cap 23 has a through hole corresponding to the outlet of the second end cap 21. The first fixing cover 22 and the second fixing cover 23 are both provided with second mounting holes 110 for fixing to the housing 10 by bolts.

[0061] Preferably, the first end cap 20 and the second end cap 21 are both welded to the heating tube body 11. This avoids the need to install silicone seals between the first end cap 20 and the heating tube body 11, and between the second end cap 21 and the heating tube body 11. Silicone seals are prone to producing odors after being heated, which affects the taste of the water. By eliminating the silicone seals, odors can be avoided and the taste of the water can be improved.

[0062] In some embodiments, such as Figure 8 , Figure 9As shown, the first end cap 20 includes a first sleeve portion 201, the inlet is located at the end of the first sleeve portion 201 away from the turbulence tube 12, the first sleeve portion 201 extends into the heating tube body 11, the first sleeve portion 201 forms a flow-gathering cavity 202, and the inlet communicates with the flow gap through the flow-gathering cavity 202; the second end cap 21 includes a second sleeve portion 211, the outlet is located at the end of the second sleeve portion 211 away from the turbulence tube 12, the second sleeve portion 211 extends into the heating tube body 11, the second sleeve portion 211 forms a flow-slowing cavity 212, and the outlet communicates with the flow gap through the flow-slowing cavity 212.

[0063] like Figure 9 As shown, the first sleeve 201 and the second sleeve 211 are welded to the inner surface of the heating tube body 11. At the same time, the first sleeve 201 and the second sleeve 211 both have a certain axial dimension to form an inner sleeve. By forming a flow-gathering cavity 202 and a flow-slowing cavity 212, the expansion relative to the inlet and outlet can be provided to improve the uniform distribution of water flow at the inlet end and the stability of the water output at the outlet end.

[0064] Furthermore, the end face of the first sleeve portion 201 away from the baffle tube 12 is higher than the bottom end face of the heating tube body 11, and the inlet extends outward to form an inlet sleeve 203, which extends out of the heating tube body 11; the end face of the second sleeve portion 211 away from the baffle tube 12 is lower than the top end face of the heating tube body 11, and the outlet extends outward to form an outlet sleeve 213, which extends out of the heating tube body 11.

[0065] Specifically, the welding position of the first sleeve 201 is such that its upper end abuts against the bottom of the baffle pipe 12 and its lower end is located inside the heating pipe body 11, so that the bottom end of the heating pipe body 11 can have sufficient length to mate with the first fixing cover 22. Similarly, the welding position of the second sleeve 211 is such that its lower end abuts against the top of the baffle pipe 12 and its upper end is located inside the heating pipe body 11, so that the top end of the heating pipe body 11 can have sufficient length to mate with the second fixing cover 23. Furthermore, the axial dimensions of the first sleeve 201 and the second sleeve 211 should not be too large to avoid occupying too much space for water supply heating.

[0066] Furthermore, the first fixing cover 22 is provided with a first step portion 221, which cooperates with the bottom stop of the heating tube body 11. The first fixing cover 22 is also provided with a first clearance opening for the inlet sleeve 203 to pass through. The second fixing cover 23 is provided with a second step portion 231, which cooperates with the top stop of the heating tube body 11. The second fixing cover 23 is also provided with a second clearance opening for the outlet sleeve 213 to pass through.

[0067] Specifically, the first step portion 221 and the second step portion 231 can axially limit the heating tube body 11, while the first clearance opening and the second clearance opening can radially limit the heating tube body 11. Through axial and radial limiting, the clamping effect of the heating tube body 11 can be improved, and the stability and reliability of use can be improved.

[0068] More preferably, the heating tube body 11, the first end cap 20, the second end cap 21, and the baffle tube 12 are all stainless steel structural components, which can avoid the use of silicone or plastic parts, cut off the source of odor, and improve the taste of water.

[0069] Furthermore, such as Figure 8 , Figure 9 As shown, the second end cap 21 is also provided with a fixing groove 214 for installing a temperature probe 215. The temperature sensing end of the temperature probe 215 extends into the heating tube body 11 through the fixing groove 214. By setting a temperature probe 215 at the water outlet, the water temperature can be detected to meet the user's needs for hot water at different temperatures.

[0070] Based on the above embodiments, the instantaneous heating element of this application is further developed. Regarding the structure of the turbulence-disrupting tube 12, this application does not impose specific limitations; for example, it can adopt any of the following methods.

[0071] Implementation Method 3:

[0072] The baffle pipe 12 is an integral pipe with both ends closed. In this embodiment, the water flow path is as follows: water flows from the inlet / inlet of one end of the heating pipe body 11 into the flow gap 19 between the heating pipe body 11 and the baffle pipe 12, flows along the flow gap and is heated, and then flows out from the outlet / outlet of the other end of the heating pipe body 11.

[0073] Preferably, the baffle tube 12 is a stainless steel structural component. This prevents the use of plastic end caps at both ends of the baffle tube 12, which could lead to odors during heating and ensure the taste of the hot water.

[0074] Implementation Method Four:

[0075] like Figure 1 or Figure 5As shown, both ends of the turbulence pipe 12 are open, and are respectively provided with an inlet turbulence end cover 121 and an outlet turbulence end cover 122. The inlet turbulence end cover 121 is provided with a first water passage, and the outlet turbulence end cover 122 is provided with a second water passage. The first water passage, the flow gap, and the second water passage constitute a water flow channel.

[0076] In this embodiment, the water flow path is as follows: water flows into the heating tube body 11 from the inlet / inlet at one end of the heating tube body 11, flows into the flow gap 19 through the first water passage, flows along the flow gap 19 and is heated, and then flows out through the second water passage and the outlet / outlet at the other end of the heating tube body 11.

[0077] In some embodiments, the inlet baffle end cap 121 and the outlet baffle end cap 122 are fastened to the baffle pipe 12 by a snap-fit ​​mechanism. Figures 1 to 7 As shown, the inlet baffle end cap 121 includes an annular first cap body 1212 and a first end plug 1213 protruding from the middle of the first cap body 1212. The first end plug 1213 extends into the baffle tube 12 and fits into the baffle tube 12. The outer diameter of the first cap body 1212 is larger than the outer diameter of the baffle tube 12. The end face of the first cap body 1212 located outside the baffle tube 12 has a plurality of first water passage holes 1211 arranged circumferentially. The plurality of first water passage holes 1211 form the first water passage. The outlet baffle end cap 122 includes an annular second cap 1222 and a second end plug 1223 protruding from the middle of the second cap 1222. The second end plug 1223 extends into the baffle tube 12 and fits into the baffle tube 12. The outer diameter of the second cap 1222 is larger than the outer diameter of the baffle tube 12. The end face of the second cap 1222 located outside the baffle tube 12 has a plurality of second water passage holes 1221 arranged circumferentially, forming a second water passage channel. During installation, it is only necessary to insert the first end plug 1213 into the baffle tube 12 and make the baffle tube 12 abut against the first cap 1212, and insert the second end plug 1223 into the baffle tube 12 and make the baffle tube 12 abut against the second cap 1222. Multiple first water passage holes 1211 / second water passage holes 1221 are arranged circumferentially, which can promote water flow from multiple first water passage holes 1211 into the flow gap and fully contact various areas of the inner wall of the heating tube body 11, thereby improving heating efficiency.

[0078] Furthermore, the inlet end of the turbulence-disrupting pipe 12 is provided with an inwardly protruding first limiting rib (not shown in the figure), and the first end plug 1213 is tightly engaged with the first limiting rib; the outlet end of the turbulence-disrupting pipe 12 is provided with an inwardly protruding second limiting rib 124, and the second end plug 1223 is tightly engaged with the second limiting rib 124. The provision of the first limiting rib and the second limiting rib 124 can also prevent the inlet turbulence-disrupting end cap 121 and the outlet turbulence-disrupting end cap 122 from rotating circumferentially to a certain extent.

[0079] Furthermore, a sealing ring is fitted onto the second end plug 1223 or the second flange. By setting the sealing ring, the sealing performance inside the baffle pipe 12 can be improved, and the fit between the outlet baffle end cap 122 and the baffle pipe 12 can be strengthened, thus optimizing the installation effect.

[0080] Preferably, the baffle pipe 12, the inlet baffle end cap 121, and the outlet baffle end cap 122 are all stainless steel components. This prevents the use of plastic end caps, which could lead to odors during heating and ensures the taste of the hot water.

[0081] Further, the inlet water flow disturbance end cap 121 is located within the projected area of ​​the first sealing member 15 along the axial direction of the instantaneous heating element, and the outlet water flow disturbance end cap 122 is located within the projected area of ​​the second sealing member 16 along the axial direction of the instantaneous heating element. Specifically, the outer edge of the inlet water flow disturbance end cap 121 is located within the projected area of ​​the first sealing member 15 along the axial direction of the instantaneous heating element, and the outer edge of the outlet water flow disturbance end cap 122 is located within the projected area of ​​the second sealing member 16 along the axial direction of the instantaneous heating element; preferably, the first sealing member and the second sealing member 122 are located within the projected area of ​​the first sealing member 15 along the axial direction of the instantaneous heating element. Both sealing elements are provided with a water passage 161 and a plug groove 162. The plug groove 162 is arranged around the water passage 161. The water inlet pipe 131 and the water outlet pipe 141 are inserted into the plug groove 162. The water passage connects the water inlet pipe, the water outlet pipe and the flow gap. The first sealing element also includes a sealing part, which includes a first sealing part 163 sandwiched between the water inlet pipe and the inner wall of the heating tube body and a second sealing part 164 sandwiched between the water inlet end cap and the end of the heating tube body.

[0082] Furthermore, a floating gap 17 is provided between the end cap assembly and the inlet and outlet baffle end caps. Specifically, the edge of the first cover 1212 is provided with a first folded edge 1214 extending away from the baffle tube, that is, the first folded edge 1214 extends toward the first seal. The edge of the second cover 1222 is provided with a second folded edge 1224 extending away from the baffle tube, that is, the second folded edge 1224 extends toward the second seal. The floating gap 17 is formed between the first folded edge and the first seal, and the floating gap is formed between the second folded edge and the second seal. Since the outer edge of the inlet baffle end cap is located within the projected area of ​​the first seal, the first folded edge of the inlet baffle end cap can abut against the first seal. On a sealing element, a first flow cavity 18 is formed between the first cover body and the end cap assembly, i.e., between the first cover body and the first sealing element, to prevent the first sealing element from blocking the first water passage hole 1211 on the first cover body. The first flow cavity 18 ensures the water flow inside the instantaneous heating element. The outer edge of the water outlet turbulence end cap is located within the projected area of ​​the second sealing element. Therefore, the second folded edge of the water outlet turbulence end cap can abut against the second sealing element. A second flow cavity 25 is formed between the second cover body and the end cap assembly, i.e., between the second cover body and the second sealing element, to prevent the second sealing element from blocking the second water passage hole on the second cover body. The second flow cavity ensures the water flow inside the instantaneous heating element. The existence of the floating gap can further prevent the end cap assembly from blocking the water inlet turbulence end cap and the water outlet turbulence end cap. The first flow passage includes the cavity formed by the inlet turbulence end cap and the floating gap. The first flow passage plays the role of accumulating and then dispersing water. The water in the first flow passage enters the flow gap 19 evenly through the first water passage hole 1211 arranged around the first cover body 1212. The second flow passage 25 plays the role of slowing down and stabilizing the flow of water. The water entering the second flow passage through the second water passage hole 1221 converges in the second flow passage. As the water flow channel becomes larger, the flow velocity slows down, and the water flow from multiple directions in the original second water passage hole 1221 is converged and uniformly sent to the outlet pipe 141, which plays the role of stabilizing the flow.

[0083] In this embodiment, the inlet cap is located below the instantaneous heating element, and the outlet cap is located above the instantaneous heating element. A floating gap 17 is left between the cap assembly and the inlet and outlet turbulence-inducing caps. The turbulence-inducing component is movably installed in the turbulence-inducing cavity 24. The turbulence-inducing component reciprocates within the turbulence-inducing cavity along the axial direction of the heating tube body. The size of the floating gap changes with the position of the turbulence-inducing component within the turbulence-inducing cavity. The turbulence-inducing component floats up and down within the turbulence-inducing cavity 24, turbulenting the water. Water enters the first flow chamber 18 through the inlet cap 13 below the instantaneous heating element. The water converges in the first flow chamber 18, increasing the water pressure. Under the impact of the water flow and the water pressure in the first flow chamber, the turbulence-inducing component floats upward. During the upward floating process, the inlet cap turbulents the water flow. The floating gap 17 between the inlet end cap 13 and the first seal increases, thus increasing the first flow cavity 18 between the inlet turbulence end cap 13 and the first seal. As the volume of the first flow cavity 18 increases, the water pressure inside the first flow cavity decreases, and the turbulence component sinks again under the action of gravity. After the turbulence component sinks, the volume of the first flow cavity 18 is compressed again, the internal water pressure increases, and the turbulence component is closer to the inlet of the instantaneous heating element, and the water flow impact force is greater. Therefore, the turbulence component floats up again. This process repeats, and the turbulence component floats up and down in the turbulence cavity, which can generate agitation in the heating tube body, making the water in the heating tube body more evenly mixed, so that the water in the heating tube body is heated more evenly, and the water can be heated more fully and evenly, ensuring the stability of the outlet water temperature.

[0084] Implementation Method 5:

[0085] The difference from the fourth embodiment is that a cavity is formed inside the turbulence pipe 12, and a water inlet hole 125 communicating with the cavity is also provided on the water inlet turbulence end cap 121. The water inlet hole 125 communicates with the water flow channel and the cavity.

[0086] To eliminate the source of odor, stainless steel components can be used for the baffle pipe 12, the inlet baffle end cap 121, and the outlet baffle end cap 122. However, rigid connections are difficult to achieve a complete seal, and a small amount of water may enter the cavity of the baffle pipe 12 through the gap between the inlet baffle end cap 121 and the baffle pipe 12. This small amount of water vaporizes upon heating, increasing the internal pressure. Combined with the thermal expansion and contraction of the air inside the cavity, this can adversely affect the baffle pipe 12 over time, potentially causing it to crack. This application addresses this issue by providing an inlet hole 125. During the water intake process, water enters the cavity through the inlet hole 125 until it is full. Once the cavity is full, the water remains relatively still and does not affect the hot water outlet at the other end of the baffle pipe 12. This prevents a small amount of water from easily vaporizing inside the cavity, which would be detrimental to the service life of the baffle pipe 12.

[0087] like Figure 3 or Figure 5 As shown, in an embodiment where the inlet turbulence end cap 121 has a first cover body 1212 and a first end plug 1213, the inlet hole 125 can be provided on the first end plug 1213. The second end plug 1223 of the outlet turbulence end cap 122 does not have an opening to seal the other end of the turbulence pipe 12.

[0088] Based on the above embodiments, the instant heating element of this application is further elaborated. The instant heating element also includes a temperature control component for controlling the power supply to and from the heating tube body 11. The temperature control component includes a first temperature control switch 200 that can be automatically reset and a second temperature control switch 210 that can be manually reset. The temperature sensing ends of the first temperature control switch 200 and the second temperature control switch 210 are both in contact with the outer wall of the heating tube body 11.

[0089] Normally, the instantaneous heating element can be controlled by an electronic control component based on temperature data detected by a temperature sensor installed on the element. When the electronic control component is functioning correctly, the aforementioned temperature control component does not need to operate. However, when the electronic control component malfunctions, the temperature control component provides additional safety measures to prevent the instantaneous heating element from continuously heating up and causing danger. When the instantaneous heating element temperature rises to the sensing threshold of the first temperature control switch 200, the first temperature control switch 200 can automatically cut off the relevant circuit, thereby de-energizing the instantaneous heating element and preventing danger. Furthermore, if the first temperature control switch 200 fails, when the instantaneous heating element temperature rises to the sensing threshold of the second temperature control switch 210, the second temperature control switch 210 can also cut off the relevant circuit, thereby de-energizing the instantaneous heating element and preventing danger. Preferably, the sensing threshold of the first temperature control switch 200 is lower than the sensing threshold of the second temperature control switch 210.

[0090] Since the first temperature control switch 200 is automatically resettable, when the temperature rises to its sensing threshold, it automatically cuts off the relevant circuit, thus de-energizing the heated element. When the temperature drops below its sensing threshold again, it automatically resets, reconnecting the relevant circuit. The second temperature control switch 210 is manually resettable; once it cuts off the relevant circuit, it cannot automatically recover and requires manual reset. Further details regarding the structure and operating principles of the first and second temperature control switches 200 and 210 can be found in relevant technical documents, and will not be elaborated upon here.

[0091] Regarding the arrangement of the instantaneous heating element, whether in Embodiment 1 or Embodiment 2, the instantaneous heating element can be arranged vertically. In this case, the lower end of the heating tube body 11 is the water inlet and the upper end is the water outlet.

[0092] To minimize odor, the components of the instant heating element should be made of stainless steel or other metals, avoiding the use of plastic or silicone.

[0093] The technical solutions protected by this invention are not limited to the above embodiments. It should be noted that any combination of the technical solutions of any embodiment with one or more other embodiments is within the protection scope of this invention. Although the invention has been described in detail above with general descriptions and specific embodiments, some modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, all such modifications or improvements made without departing from the spirit of this invention are within the scope of protection claimed by this invention.

Claims

1. An instantaneous heating element, characterized in that, include: The heating tube body includes a heating zone and fixed zones located at both ends of the heating zone; A flow-dissipating assembly, which is a stainless steel structural component, includes a flow-dissipating pipe, an inlet flow-dissipating end cap, and an outlet flow-dissipating end cap. The flow-dissipating pipe is located within the heating tube body, and a flow gap is formed between the flow-dissipating pipe and the heating tube body. The inlet flow-dissipating end cap and the outlet flow-dissipating end cap are respectively assembled at both ends of the flow-dissipating pipe. Both the inlet flow-dissipating end cap and the outlet flow-dissipating end cap are located in the fixed area. The inlet flow-dissipating end cap is provided with a first water passage, and the outlet flow-dissipating end cap is provided with a second water passage. The first water passage, the flow gap, and the second water passage constitute a water flow channel. An end cap assembly is fixed to both ends of the heating tube body, and a turbulence cavity for limiting the turbulence assembly is formed between the end cap assembly and the heating tube body. A floating gap is left between the end cap assembly and the inlet and outlet turbulence end caps. The turbulence assembly is movably installed in the turbulence cavity. The turbulence assembly reciprocates in the turbulence cavity along the axial direction of the heating tube body. The size of the floating gap changes with the position of the turbulence assembly in the turbulence cavity. The turbulence assembly floats up and down in the turbulence cavity to turbulent the water. Room temperature water enters the heating tube body through the end cap assembly, flows through the water flow channel, is heated, and then flows out from the end cap assembly.

2. The instantaneous heating element according to claim 1, characterized in that, The end cap assembly is a stainless steel structural component. The end cap assembly includes an inlet end cap, an outlet end cap, a first sealing element, and a second sealing element. The first sealing element is installed on the inlet end cap, and the second sealing element is installed on the outlet end cap. The inlet turbulence end cap is located within the projected area of ​​the first sealing element along the axial direction of the instantaneous body, and the outlet turbulence end cap is located within the projected area of ​​the second sealing element along the axial direction of the instantaneous body.

3. The instantaneous heating element according to claim 2, characterized in that, The water inlet end cover is provided with a water inlet pipe, which is installed through the water inlet end cover. A first sealing element is fitted onto one end of the water inlet pipe, and the other end of the water inlet pipe is connected to the outside. The water outlet end cap is provided with a water outlet pipe, which is installed through the water outlet end cap. A second sealing element is fitted onto one end of the water outlet pipe, and the other end of the water outlet pipe is connected to the outside. The turbulence cavity is formed between the first seal, the second seal and the heating tube body.

4. The instantaneous heating element according to claim 3, characterized in that, The first and second sealing elements are provided with a water passage and a plug groove. The plug groove is arranged around the water passage. The water inlet pipe and the water outlet pipe are inserted into the plug groove. The water passage connects the water inlet pipe, the water outlet pipe and the flow gap.

5. The instantaneous heating element according to claim 4, characterized in that, The first sealing element further includes a sealing portion, which includes a first sealing portion sandwiched between the water inlet pipe and the inner wall of the heating pipe body, and a second sealing portion sandwiched between the water inlet end cap and the end of the heating pipe body.

6. The instantaneous heating element according to claim 1, characterized in that, The water inlet turbulence end cap includes an annular first cover body, the outer diameter of the first cover body is larger than the outer diameter of the turbulence tube, the edge of the first cover body is provided with a first folded edge extending away from the turbulence tube, a first flow cavity is formed between the first cover body and the end cap assembly, and the floating gap is formed between the first folded edge and the end cap assembly. The water outlet turbulence end cap includes an annular second cover body, the outer diameter of the second cover body is larger than the outer diameter of the turbulence pipe, the edge of the second cover body is provided with a second folded edge extending away from the turbulence pipe, a second flow cavity is formed between the second cover body and the end cap assembly, and the floating gap is formed between the second folded edge and the end cap assembly.

7. A heat exchanger according to claim 6, characterized in that, The water inlet turbulence end cap also includes a first end plug protruding from the middle of the first cover body. The first end plug extends into the turbulence tube and is fitted with the turbulence tube cover. The end face of the first cover body located on the outside of the turbulence tube is provided with a plurality of first water passage holes arranged at intervals along the circumference. The first water passage holes form the first water passage channel. The water outlet turbulence end cap also includes a second end plug protruding from the middle of the second cover body. The second end plug extends into the turbulence pipe and is fitted with the turbulence pipe cover. The end face of the second cover body located outside the turbulence pipe is provided with a plurality of second water passage holes arranged at intervals along the circumference. The second water passage holes form the second water passage channel.

8. The instantaneous heating element according to claim 1, characterized in that, A cavity is formed inside the turbulence tube, and a water inlet hole is provided on the water inlet turbulence end cap. The water inlet hole connects the water flow channel and the cavity.

9. A heat exchanger according to claim 1, characterized in that, The instant heating element also includes a temperature control component for controlling the power supply to and from the heating tube body. The temperature control component includes a first temperature control switch that can be automatically reset and a second temperature control switch that can be manually reset. The temperature sensing ends of the first and second temperature control switches are both in contact with the outer wall of the heating tube body.

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