Heating device and closestool

Abstract

The invention provides a heating device and a closestool, the heating device comprises a shell, a heating part, a flow guide part and at least one gap maintaining part, a first gap is formed between a heating part and the wall surface of a heating space, a second gap is formed between a flow guide part and the heating part, and the first gap and the second gap form a heating flow channel surrounding the peripheral wall of the heating part; the gap maintaining part comprises a first end and a second end, and the first end is arranged on the shell or the flow guide part; in the process that the heating part is inserted into the heating space, the second end is located on an expected displacement path of the heating part relative to the heating space so as to prevent the heating part from deviating towards an unexpected direction relative to the heating space, and the gap value of the first gap conforms to a preset numerical range. The heating device has the advantages that the gap of the heating runner is uniform, and the heating part is prevented from abutting against the wall face of the heating space to damage the heating device.

Description

Technical Field

[0001] The present application relates to the technical field of heating equipment, and in particular to a heating device and a toilet. Background Art

[0002] Smart toilets are usually equipped with a heating device that can heat water to obtain hot water for use in the toilet's human body cleaning module. Fig.25 A schematic diagram of the cross-sectional structure of a heating device of the prior art is shown. Specifically, a heating chamber 11 is provided in the heating device, and a heating element 3 is placed in the heating chamber 11 to heat the water in the heating chamber 11. The power source for discharging the warm water is to inject cold water into the heating chamber 11 through the water inlet on the shell 1. The injection of cold water will affect the temperature of the hot water in the heating chamber 11, causing the water temperature to drop when the warm water is continuously discharged from the shell 1, and causing the water flow in the heating chamber 11 to be chaotic, with the hot water suspended above and the cold water located below, making it impossible to quickly heat up the water in the heating chamber 11. Therefore, the heating device has the problems of low heating efficiency and unstable temperature of the discharged water flow.

[0003] In order to solve the problem of low heating efficiency of current heating devices, the inventor of the present application arranges a guide member in the shell of the heating device. The guide member, the shell and the heating element together form a heating flow channel surrounding the outer wall of the heating element. The extension direction of the heating flow channel is the same as the extension direction of the heating element. In this way, the contact area between the water in the heating flow channel and the heating element can be increased, thereby improving the heating efficiency of the heating device.

[0004] In the process of developing the heating device, the inventor discovered that the guide, the shell and the heating element together form a heating channel with high heating efficiency, and the heating channel has an uneven gap problem. For example, the heating element is tilted toward one side of the shell wall, or the heating element is tilted toward one side of the guide, resulting in water at different positions in the heating channel receiving heat from the outer wall of the heating element unevenly, resulting in poor consistency of water temperature in the heating channel. If the heating element is deflected too much toward the shell wall, so that the heating element abuts against the shell wall, the shell wall will be locally overheated and damaged. Summary of the invention

[0005] In order to solve the above problems, an embodiment of the present application provides a heating device and a toilet. The heating device of the present application is provided with a gap maintaining component in the heating space. When the heating part is inserted into the heating space, the gap maintaining component makes the first gap conform to a set numerical range, thereby preventing the heating part from being skewed during the insertion into the heating space and ensuring that the gap of the flow cross section of the heating flow channel is uniform.

[0006] The specific technical solutions of the embodiments of this application are as follows: A heating device, comprising: A shell body having a heating space and an inlet communicating with the heating space; A heating element, comprising a heating portion, wherein the heating portion is arranged to be inserted into the heating space through the insertion port, and a first gap is formed between the heating portion and a wall surface of the heating space; a flow guide member located in the heating space, the flow guide member comprising a flow guide portion, a second gap being formed between the flow guide portion and the heating portion, the first gap and the second gap forming a heating flow channel surrounding an outer peripheral wall of the heating portion; and At least one gap maintaining component is located in the heating space, including a first end and a second end, the first end is arranged on the shell or the guide member; when the heating part is inserted into the heating space, the second end is located on the expected displacement path of the heating part relative to the heating space, so as to prevent the heating part from shifting in an unexpected direction relative to the heating space, so that the gap value of the first gap is within a predetermined numerical range.

[0007] A toilet comprises the heating device as described in any one of the above embodiments.

[0008] The technical effects of the heating device in the embodiment of the present application are as follows: In a heating device of an embodiment of the present application, during the process of inserting the heating part into the heating space, the relative positional relationship between the heating part, the flow guide and the wall surface of the heating space is constrained and limited by the gap retaining component. During the process of inserting the heating part into the heating space, the first end of the gap retaining component is placed on the flow guide or the shell, that is, the first end is constrained and limited by the flow guide or the shell; the second end of the gap retaining component is located on the expected displacement path of the heating part relative to the heating space, so that the second end can limit the heating part to be inserted into the heating space only along the expected displacement path, and the second end can prevent the heating part from deviating in an unexpected direction, ensuring that the gap value of the first gap meets the predetermined value range.

[0009] Since the first gap and the second gap form a heating channel surrounding the heating part, by adjusting the gap value range that limits the first gap, the gap value that limits the second gap can also be indirectly adjusted. In this way, the heating device of the embodiment of the present application is provided with a gap maintaining component, which can ensure that the gap of the heating channel is uniform, and the water at different positions in the heating channel is heated evenly, so that the water temperature in the heating channel is consistent. The gap value of the first gap is within the predetermined numerical range, which can avoid the situation where the heating part abuts against the wall of the heating space, and ensure the normal operation of the heating device.

[0010] Other features and advantages of the present application will be described in the following description, and partly become apparent from the description, or be understood by implementing the present application. Other advantages of the present application can be realized and obtained by the schemes described in the description and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The accompanying drawings are used to provide an understanding of the technical solution of the present application and constitute a part of the specification. Together with the embodiments of the present application, they are used to explain the technical solution of the present application and do not constitute a limitation on the technical solution of the present application.

[0012] Figure 1 This is a schematic diagram of the three-dimensional structure of a heating device according to an embodiment of the present application; Figure 2 for Figure 1 A schematic diagram of the exploded structure of the heating device; Figure 3 for Figure 1 A schematic cross-sectional structure diagram of a heating device; Figure 4 for Figure 1 Another cross-sectional structural schematic diagram of the heating device; Figure 5 for Figure 1 Another cross-sectional structural schematic diagram of the heating device; Figure 6 for Figure 2 A schematic diagram of the structure of a shell in a heating device; Figure 7 for Figure 2 A schematic diagram of the three-dimensional structure of the flow guide member in the heating device observed from a viewing angle; Figure 8 for Figure 7 A schematic diagram of the three-dimensional structure of the guide member observed from another perspective; Fig. 9 for Figure 7 A schematic diagram of the three-dimensional structure of the guide member observed from another viewing angle; Fig.10 for Figure 2 A schematic diagram of the three-dimensional structure of a gap maintaining component in a heating device; Fig.11 for Figure 2 A schematic diagram of an assembly process of a gap retaining component, a heating element and a flow guide element in a heating device; Fig.12 for Fig.11 A schematic diagram of the structure in which the gap retaining component, the heating component and the flow guide component are assembled; Fig.13 for Fig.12 A schematic diagram of a cross-sectional structure; Fig.14 A schematic diagram of an assembly process of a heating element and a mounting base according to an embodiment of the present application; Fig.15 for Fig.14 A schematic diagram of a cross-sectional structure of a heating element and a mounting base after assembly; Fig.16 for Figure 2 A schematic diagram of the assembly process of the heating device; Fig.17 This is a schematic diagram of the exploded structure of a heating device according to another embodiment of the present application; Fig.18 for Fig.17 A schematic cross-sectional structural diagram of a heating device; Fig.19 for Fig.17 A schematic diagram of the three-dimensional structure of the flow guide member in the heating device observed from a viewing angle; Fig. 20 for Fig.19 A schematic diagram of the three-dimensional structure of the guide member observed from another perspective; Fig.21 for Fig.17 A schematic diagram of the three-dimensional structure of a gap maintaining component in a heating device; Fig. 22 for Fig.17 A cross-sectional schematic diagram of the assembly process of the gap retaining component, the heating element and the flow guide element in the heating device; Fig.23 for Fig. 22 A schematic diagram of a cross-sectional structure of a gap retaining component, a heating component and a flow guide component after assembly; Fig.24 for Fig.17 A cross-sectional schematic diagram of the assembly process of the heating device; Fig.25 It is a schematic diagram of the cross-sectional structure of a heating device in the prior art. DETAILED DESCRIPTION

[0013] The present application describes multiple embodiments, but the description is exemplary rather than restrictive, and it is obvious to a person skilled in the art that there may be more embodiments and implementations within the scope of the embodiments described in the present application.

[0014] The present application includes and contemplates the combination of features and elements known to those of ordinary skill in the art. The embodiments, features and elements disclosed in the present application may also be combined with any conventional features or elements to form a unique inventive solution. It should be understood that any feature shown and / or discussed in the present application may be realized individually or in any appropriate combination. Therefore, except for the limitations made according to the attached claims and their equivalents, the embodiments are not subject to other restrictions. In addition, various modifications and changes may be made within the scope of the attached claims.

[0015] Please refer to the instruction manual Figures 1 to 24 A schematic structural diagram of a heating device according to an exemplary embodiment of the present application is shown. Figures 1 to 16 This is a schematic diagram of the structure of a heating device according to an embodiment of the present application. Figures 17 to 24 This is a schematic structural diagram of a heating device according to another embodiment of the present application. Fig.11 , Fig.14 , Fig.16 , Fig. 22 and Fig.24 The direction of the arrows in the figure indicates the direction of movement of the component during assembly.

[0016] like Figure 2 , Figure 3 , Fig.17 and Fig.18 As shown, the embodiment of the present application provides a heating device, including a shell 1, a heating element 2, a flow guide 3 and at least one gap maintaining component 4. The shell 1 is provided with a heating space 11 and an inlet 12 connected to the heating space 11; the heating element 2 includes a heating portion 21, the heating portion 21 is arranged to be inserted into the heating space 11 through the inlet 12, and the heating portion 21 and the wall surface of the heating space 11 form a first gap 13; the flow guide 3 is located in the heating space 11, the flow guide 3 includes a flow guide 31, and a second gap 14 is formed between the flow guide 31 and the heating portion 21, and the first gap 13 and the second gap 14 form a heating flow channel 15 surrounding the outer peripheral wall of the heating portion 21; at least one gap maintaining component 4 is located in the heating space 11, including a first end and a second end, and the first end is arranged on the shell 1 or the flow guide 3. During the process of inserting the heating part 21 into the heating space 11, the second end is located on the expected displacement path of the heating part 21 relative to the heating space 11 to prevent the heating part 21 from shifting in an unexpected direction relative to the heating space 11, so that the gap value of the first gap 13 is within a predetermined numerical range.

[0017] Specifically, Figure 2 The composition structure and assembly relationship of the heating device embodiment shown are as follows: Figure 6 The three-dimensional structural schematic diagram of the shell 1 of this embodiment is shown. The shell 1 is provided with a heating space 11 and an insertion port 12. The heating element 2 and the guide element 3 are inserted into the heating space 11 via the insertion port 12. The heating portion 21 of the heating element 2 can dissipate heat to heat up the water. Figures 7 to 9 The schematic diagram of the three-dimensional structure of the flow guide member 3 of this embodiment is shown. The flow guide member 3 is provided with a flow guide portion 31. The flow guide portion 31 is used to form a heating flow channel 15 of the water flow space of the heating device. Fig.10 The schematic diagram of the three-dimensional structure of the gap retaining member 4 of this embodiment is shown. The gap retaining member 4 is arranged between the heating element 2, the flow guide member 3 and the wall surface of the heating space 11. When the heating part 21 is inserted into the heating space 11, the gap retaining member 4 is used to constrain the heating element 2 to prevent the heating element 2 from being deflected. Fig.11As shown, the heating element 2 is bent and extended to have an escape space, and the flow guide 3 is inserted into the escape space, so that a second gap 14 is formed between the heating portion 21 of the heating element 2 and the flow guide portion 31 of the flow guide 3, and then the gap maintaining component 4 is sleeved on the outside of the heating element 2 and the flow guide 3 to constrain the relative position relationship between the heating element 2 and the flow guide 3. Fig.16 As shown in FIG. 1 , the heating element 2 and the flow guide 3 constrained by the gap retaining member 4 are inserted into the heating space 11 of the housing 1 through the insertion port 12. Thus, the heating portion 21 and the wall surface of the heating space 11 form a first gap 13, and the housing 1, the heating element 2 and the flow guide 3 form a gap 13 as shown in FIG. Figures 3 to 5 The heating channel 15 shown includes a first gap 13 and a second gap 14. The heating channel 15 surrounds the outer peripheral wall of the heating portion 21, and the extension direction of the water flow path of the heating channel 15 is the same as the extension direction of the heating element 2, forming an instant heating device, which has the advantages of sufficient contact and heating between the water flow and the heating element 2 and high heating efficiency.

[0018] Figures 17 to 24 The composition structure and assembly process of the heating device of the embodiment shown are similar to Figure 2 The heating device of the embodiment shown has similar structure and assembly process. Fig.18 The heating element 2, the flow guide 3 and the wall of the heating space 11 form a heating channel 15, and the heating channel 15 includes a first gap 13 and a second gap 14. The gap retaining component 4 constrains the relative position of the heating element 2 relative to the flow guide 3 and the housing 1. The differences between the two are: the structures of the flow guide 3 and the gap retaining component 4 are different, the connection structure between the flow guide 3 and the heating element 2 constrained by the gap retaining component 4 is different, and the connection structure between the gap retaining component 4, the flow guide 3, the heating element 2 and the housing 1 is different. The specific connection structures of the heating devices of the two embodiments will be discussed in detail below.

[0019] like Fig.16 and Fig.24As shown, when the heating element 2 is inserted into the heating space 11 of the shell 1, due to the small connection contact area between the heating element 2 and the mounting seat 5, the connection structure between the heating element 2 and the mounting seat 5 is not firm and there is shaking. Some heating elements 2 are extended in a long strip shape. In this way, after the heating part 21 is inserted into the heating space 11, the slight deflection of the connection structure between the heating element 2 and the mounting seat 5 causes the heating part 21 to deflect more away from the end of the insertion port 12, thereby affecting the gap uniformity of the flow cross section of the heating flow channel 15, and further affecting the heating efficiency of the heating device. The heating device of the embodiment of the present application adopts a gap retaining component 4 to constrain the relative position relationship between the heating element 2, the flow guide 3 and the wall surface of the heating space 11. During the insertion of the heating part 21 into the heating space 11, the first end of the gap retaining component 4 is placed on the flow guide 3 or the shell 1, that is, the first end is limited by the flow guide 3 or the shell 1; the second end of the gap retaining component 4 is located on the expected displacement path of the heating part 21 relative to the heating space 11, and the second end can prevent the heating part 21 from deflecting in an unexpected direction. The expected displacement path here means that: the insertion movement path of the heating part 21 satisfies the following conditions, during the process of inserting the heating part 21 into the heating space 11 and after the heating part 21 is inserted into the heating space 11, the gap value of the first gap 13 between the heating part 21 and the wall of the heating space 11 is maintained within a preset ideal numerical range, and the gap value of the first gap 13 is uniform. When the heating part 21 moves along the insertion movement path, it is the expected displacement path. The second end of the gap retaining component 4 is located on the expected displacement path, and the second end can limit the outer surface of the heating part 21 to prevent the outer surface of the heating part 21 from deviating from the expected displacement path when the heating part 21 is inserted into the heating space 11. Among them, the predetermined numerical range of the gap value of the first gap 13 refers to a numerical range obtained by floating up and down a certain range based on the gap value in the theoretical design model of the heating device, and the water in the heating flow channel 15 is heated more evenly within the expected numerical range.

[0020] Since the first gap 13 and the second gap 14 form a heating channel 15 surrounding the heating portion 21, by adjusting and limiting the gap value range of the first gap 13, the gap value range of the second gap 14 can also be indirectly adjusted and limited. The heating device of the embodiment of the present application is provided with a gap retaining component 4, which can ensure that the gap of the heating channel 15 is uniform, and the water at different positions in the heating channel 15 is heated uniformly, so that the water temperature in the heating channel 15 is consistent, the heating efficiency of the heating device is high, and the water outlet temperature is consistent. In addition, the gap value of the first gap 13 is within a predetermined numerical range, which can avoid the situation where the heating portion 21 abuts against the wall of the heating space 11, thereby ensuring the normal operation of the heating device.

[0021] Figure 5 and Fig.18In the illustrated embodiment of the heating device, the gap retaining component 4 is located at an end of the heating space 11 away from the insertion port 12 . It is understandable that the gap retaining component 4 may also be disposed in the heating space 11 at a position close to the insertion port 12 . Figure 5 and Fig.18 In the illustrated embodiment of the heating device, the number of the gap retaining component 4 is one. It can be understood that the gap retaining component 4 can also be provided in plurality, all within the protection scope of the present application.

[0022] In an exemplary embodiment, the second end is located between the heating portion 21 and a wall of the heating space 11 , and the second end is located at one or more combinations of above, below, and side of the heating portion 21 .

[0023] Specifically, the second end is located between the heating portion 21 and the wall of the heating space 11, and the second end can limit the relative position relationship between the heating portion 21 and the wall of the heating space 11 to ensure that the gap value of the first gap 13 meets the predetermined numerical range.

[0024] Figure 4 The arrow directions in the figure specifically indicate the specific positions of the top, bottom and side of the heating part. The second end may be located above the heating part 21; or the second end may be located below the heating part 21; or the second end may be located on the side of the heating part 21; or the second end may be located at a combination of the top, bottom and side of the heating part 21. For example, Figure 11-Figure 12 In the illustrated embodiment, a first end of the gap retaining member 4 is located on the flow guide member 3 , and a second end thereof is located above, below and at the side of the heating member 2 .

[0025] In an exemplary embodiment, the heating element 2 is a heating rod, and the gap values ​​of the first gap 13 and the second gap 14 are equal.

[0026] Specifically, the gap values ​​of the first gap 13 and the second gap 14 are equal, which can ensure that the gap of the entire heating channel 15 is relatively uniform, so that water at different positions in the heating channel 15 is heated evenly and the water temperature in the heating channel 15 is consistent.

[0027] It is worth noting that the equal gap values ​​of the first gap 13 and the second gap 14 do not mean that the gap values ​​of the first gap 13 and the second gap 14 are absolutely equal. Since there are errors in the processing and assembly of the heating device, the gap values ​​of the first gap 13 and the second gap 14 can be equal within the upper and lower floating range of the error.

[0028] In an exemplary embodiment, Figure 4 , Figure 5 , Fig.12 and Fig.18 As shown, the first end is supported on the guide member 3 or the wall of the heating space 11, wherein: like Figure 4 , Figure 5 and Fig.12 As shown, when the first end is supported on the guide member 3 , the second end is supported between the heating portion 21 and the wall surface of the heating space 11 in a manner of crossing the heating portion 21 .

[0029] like Fig.18 As shown, when the first end is supported on the wall of the heating space 11 , the second end is configured to extend toward the heating portion 21 .

[0030] Specifically, when the first end of the gap retaining member 4 is supported on the flow guide member 3, as shown in FIG. Figure 4 The guide member 3 can be connected to the housing 1 through a limiting structure, so that the first end of the gap retaining member 4 is limited. Figure 5 As shown, the second end of the gap retaining member 4 is supported between the heating portion 21 and the wall surface of the heating space 11 in a manner of crossing the heating portion 21, so that the second end can limit the relative positional relationship between the heating portion 21 and the inner wall of the heating space 11, and ensure that the gap value of the first gap 13 meets the predetermined numerical range. Among them, the second end of the gap retaining member 4 is supported on the heating portion 21 in a manner of crossing the heating portion 21, so that the gap retaining member 4 has a stronger support and restraint force on the heating portion 21.

[0031] When the first end of the gap maintaining component 4 is supported on the wall of the heating space 11, the first end is constrained and limited by the shell 1, and the second end extends in the direction of the heating part 21. The second end can limit the relative position relationship between the heating part 21 and the wall of the heating space 11, thereby ensuring that the gap value of the first gap 13 is within a predetermined numerical range.

[0032] It can be understood that the gap maintaining component 4 can be formed into a filamentous or block-shaped structure, both of which are within the protection scope of the present application.

[0033] In an exemplary embodiment, Fig.12 , Fig.13 and Fig.16 As shown, the heating device further comprises a mounting seat 5 , which is connected to the shell 1 and blocks the inlet 12 , and the heating element 2 and the flow guide element 3 are supported on the mounting seat 5 .

[0034] The heating device also includes a limit portion 6, which is supported by the guide member 3 or the mounting seat 5; the limit portion 6 is arranged close to the outer peripheral wall of the heating portion 21; during the process of inserting the heating portion 21 into the heating space 11, the limit portion 6 prevents the heating portion 21 from swinging toward the limit portion 6 relative to the shell 1.

[0035] Specifically, the limiting portion 6 and the gap maintaining component 4 are used to limit the connection of the heating element 2, so that when the heating element 21 is inserted into the heating space 11, the heating element 2 is inserted in an expected moving path, the gap value of the first gap 13 is within a predetermined numerical range, and the heating element 2 is not skewed relative to the wall surface of the heating space 11, thereby ensuring that the gap of the flow cross section of the heating channel 15 is uniform.

[0036] Figures 7 to 9 FIG. 3 shows a guide member 3 according to an embodiment of the present application. The guide member 3 according to the embodiment is provided with a limit portion 6. The limit portions 6 are located on both sides of the guide portion 31. The limit portions 6 are two semi-arch structures. Fig.13 As shown, the heating element 2 is a cylindrical heating rod, and two semi-arched limiting portions 6 surround the outside of part of the outer wall of the heating element 2. The diameter of the two semi-arched structures is larger than the diameter of the heating element 2. The limiting portions 6 can limit the radial movement of the heating element 2 to prevent the heating element 2 from being deflected in the heating space 11.

[0037] It can be understood that the limiting portion 6 can be supported on the guide member 3, and the limiting portion 6 can also be supported on the mounting seat 5, both of which can limit the heating element 2. Fig.13 As shown, a flow guide groove may be provided between the limiting portion 6 and the heating element 2 so that the heating channel 15 extends into the space between the limiting portion 6 and the heating element 2. The portion of the heating element 2 that is limited and surrounded by the limiting portion 6 may not be provided with a heating function, so as to prevent the heating element 2 from malfunctioning due to local high temperature.

[0038] In an exemplary embodiment, Fig.12 and Fig.16 As shown, the gap retaining component 4 is located at one end of the heating space 11 away from the insertion port 12 , and the limiting portion 6 is located near the insertion port 12 .

[0039] Specifically, when the heating element 2 and the flow guide 3 are inserted into the heating space 11 together, the limiting portion 6 limits the heating element 2 from the vicinity of the insertion port 12 to prevent the heating element 2 from being deflected toward the limiting portion 6; the gap retaining component 4 limits the heating element 2 from the end of the heating space 11 away from the insertion port 12 to prevent the heating element 2 from being deflected relative to the wall surface of the heating space 11. In this way, both the insertion port 12 end and the end away from the insertion port 12 of the heating element 2 are limited, and both ends of the heating element 2 are constrained, which is conducive to the heating element 2 being inserted into the heating space 11 along the expected moving path, so that the gap value of the first gap 13 meets the set range, and the gap value of the flow cross section of the heating flow channel 15 is relatively uniform. In addition, the limiting portion 6 limits the connection structure between the heating element 2 and the mounting seat 5 to prevent the connection structure between the heating element 2 and the mounting seat 5 from being deflected too much.

[0040] It can be understood that the gap retaining member 4 and the limiting portion 6 can also be arranged at other positions of the heating space 11, all within the protection scope of the present application.

[0041] In an exemplary embodiment, Fig.14 and Fig.15 As shown, the heating element 2 includes two wiring ends 22 supported on the mounting seat 5 , and the heating portion 21 is constructed such that the two wiring ends 22 extend into the heating space 11 and connect at a position away from the insertion port 12 .

[0042] Specifically, Figure 3 In the illustrated embodiment of the heating device, the heating element 2, the wall of the heating space 11 and the flow guide 3 enclose a U-shaped heating channel 15, the heating element 2 is U-shaped, and the gap retaining component 4 is located near the elbow 211 of the heating element 2. It can be understood that the shapes of the heating channel 15 and the heating element 2 are not limited to the U-shape, and are all within the protection scope of the present application.

[0043] Fig.14 and Fig.15 In the embodiment shown, the two wiring ends 22 of the heating element 2 are connected to the countersunk holes of the mounting seat 5, and the two wiring ends 22 are respectively passed through the countersunk holes, and the wires are led out to be connected to the circuit. The curved shape of the heating element 2 forms an escape space, and the guide member 3 can be inserted into the escape space, so that the heating element 2, the wall surface of the heating space 11 and the guide member 3 enclose a curved and extended heating flow channel 15. The gap retaining component 4 is located near the elbow 211, and the gap retaining component 4 can use the outer shape structure of the elbow 211 to limit the connection between the heating part 21, the shell 1 and the guide member 3.

[0044] In an exemplary embodiment, the second end or the gap maintaining member 4 is configured to be deformable when subjected to pressure.

[0045] Specifically, the second end or the gap retaining component 4 can be deformed when subjected to pressure. When the heating part 21 is deflected during the insertion of the heating part 21 into the heating space 11, the gap retaining component 4 can be deformed to generate elastic force to constrain the heating part 21, thereby allowing the gap retaining component 4 to correct the position of the heating part 21 inserted into the heating space 11.

[0046] Moreover, in some embodiments, the limiting portion 6, the mounting seat 5 and the gap maintaining component 4 all constrain the heating portion 21, and the heating portion 21 may be over-constrained. The second end or the gap maintaining component 4 is constructed to be deformable when subjected to pressure, so that the deformation displacement of the gap maintaining component 4 can change the over-constraint of the heating portion 21.

[0047] In an exemplary embodiment, Figure 5 and Fig.18As shown, the first end is supported on the guide member 3 or the wall surface of the heating space 11.

[0048] like Figure 5 , Fig.11 and Fig.12 As shown, when the first end is supported on the guide member 3 , the second end can exert force on the heating portion 21 to limit the heating portion 21 from being away from the guide member 3 , so that the second gap 14 meets the predetermined value range.

[0049] like Fig.18 , Figure 22-Figure 24 As shown, when the first end is supported on the wall of the heating space 11, the second end extends to the guide member 3 and is connected to the guide member 3, and the gap maintaining component 4 limits the heating part 21 between the wall of the heating space 11 and the guide member 3, so that the gap values ​​of the first gap 13 and the second gap 14 are both within the predetermined numerical range.

[0050] Specifically, Figure 5 , Fig.11 and Fig.12 In the illustrated embodiment, the first end of the gap retaining component 4 refers to the limiting portion 48 located in the limiting groove 35 of the flow guide 3. The second end of the gap retaining component 4 refers to the first U-shaped portion 47 and the second U-shaped portion 49 located on the outer contour wall surface of the heating component 2. The limiting portion 48, i.e., the first end, of the gap retaining component 4 is connected to the flow guide 3, and both the first U-shaped portion 47 and the second U-shaped portion 49, i.e., the second ends, are elastically deformed, and both the first U-shaped portion 47 and the second U-shaped portion 49 apply force to the heating portion 21, thereby limiting the gap value of the second gap 14 between the heating portion 21 and the flow guide 3. It can be understood that the specific structure of the first end and the second end of the gap retaining component 4 in the embodiment of the present application is not limited to Fig.10 The specific structures shown are all within the protection scope of this application.

[0051] like Figure 21-24 In the illustrated embodiment, the first end refers to the lug portion 41 , and the second end refers to the hook portion 42 and the plug-in portion 43 extending to one side of the air guide member 3 . Fig.18 As shown, the first end of the gap retaining component 4 is connected to the wall of the housing 1, and the second end of the gap retaining component 4 is connected to the guide member 3. The gap retaining component 4 limits the heating part 21 between the wall of the housing 1 and the guide member 3, and can ensure that the gap value of the second gap 14 meets the predetermined value range. It can be understood that the gap retaining component 4 of the present application is not limited to Fig.21 The specific structure shown may also be in other structural forms, all of which are within the protection scope of this application.

[0052] In an exemplary embodiment, Figure 21 to Figure 24As shown, the heating element 2 is a heating rod, and the gap maintaining component 4 is configured to be formed by bending an elastic filamentary component; the gap maintaining component 4 includes an ear portion 41 protruding toward the wall of the heating space 11, a hanging ear portion 42 and a plug-in portion 43 protruding toward the air guide member 3, and a plurality of clamping ring portions 44 adapted to the heating element 2.

[0053] like Fig.19 , Fig. 20 , Fig.23 and Fig.24 As shown in FIG. 1 , the guide member 3 is provided with a hooking platform 32 for hooking with the hooking ear portion 42 and a plugging slot 33 for plugging with the plugging portion 43. The hooking platform 32 and the plugging slot 33 are respectively provided in the thickness direction of the heating space 11 ( Fig.23 The arrow in the middle indicates two end surfaces that are arranged opposite to each other in the thickness direction of the heating space 11. A plurality of clamping ring portions 44 are separated on both sides of the heating rod along the thickness direction of the heating space 11, and abut against the heating rod to limit the position of the heating rod. A positioning groove 16 is provided on the inner side wall of the housing 1, and the lug portion 41 is limited in the positioning groove 16.

[0054] Specifically, the gap retaining component 4 is formed by bending an elastic filamentary member. The gap retaining component 4 is generated by bending, so that the gap retaining component 4 is easy to process and form, and the elastic filamentary member bent multiple times has a large deformation amount and a strong restraining and correcting ability for the heating element 2.

[0055] Fig. 22 A schematic diagram showing the gap maintaining component 4 being installed to the flow guide 3 and the heating element 2 is shown. Fig.24 FIG. 4 shows a schematic diagram of the gap retaining member 4 being installed to the housing 1, the heating member 2 and the retaining member 3. Fig. 22 As shown in FIG. 1 , the ear portion 42 of the gap retaining member 4 moves toward the heating element 2, and the opening between the ear portion 42 and the plug portion 43 of the gap retaining member 4 is opened, so that the plurality of clamping ring portions 44 are separated on both sides of the heating rod to clamp the heating rod, and then Fig.24 As shown, the heating element 2 with the gap maintaining component 4 is inserted into the heating space 11 until the lug portion 41 is limited to the positioning groove 16 of the shell 1, thereby completing the assembly process of the heating element 2 and the shell 1.

[0056] It can be understood that the gap retaining component 4 of the present application is not limited to Fig.21 The appearance and structure shown.

[0057] In an exemplary embodiment, the heating element 2 is a U-shaped heating rod, and the heating element 2 includes a bent portion 211 away from the insertion port 12 .

[0058] like Fig.19 and Fig.23As shown, the guide member 3 is provided with a hanging groove 34 adapted to the hanging ear portion 42 , the hanging groove 34 is located on the hanging platform 32 , and the hanging platform 32 is arranged to be flush with the outer surface of the guide member 3 after the hanging ear portion 42 is inserted into the hanging groove 34 .

[0059] Specifically, after the hanging ear portion 42 is inserted into the hanging groove 34 , it can be flush with the outer surface of the guide member 3 , so that the connection structure between the gap maintaining component 4 and the guide member 3 has a smooth appearance, and the guide member 3 is easy to insert into the heating space 11 .

[0060] In an exemplary embodiment, Fig.21 As shown, the number of the hook parts 42 is one, the number of the plug parts 43 is two and they are symmetrically distributed, the number of the clamping ring parts 44 is four and they are symmetrically distributed, and the number of the lug parts 41 is four and they are symmetrically distributed.

[0061] In an exemplary embodiment, when the gap retaining member 4 is in a natural state, the distance between the hook portion 42 and the plug-in portion 43 in the thickness direction of the heating space 11 is greater than the outer diameter of the heating element 2 .

[0062] In an exemplary embodiment, Fig.21 and Fig.23 As shown, the gap retaining member 4 further includes a first notch portion 45 located between the ear portion 42 and the snap ring portion 44, and a second notch portion 46 located between the plug portion 43 and the snap ring portion 44. When the gap retaining member 4 is in a natural state, the spacing between the first notch portion 45 and the second notch portion 46 in the thickness direction of the heating space 11 is smaller than the outer diameter of the heating element 2.

[0063] Specifically, the distance between the first notch 45 and the second notch 46 in the thickness direction of the heating space 11 is smaller than the outer diameter of the heating element 2 , so that the first notch 45 and the second notch 46 cooperate with the clamping ring 44 to clamp and limit the heating element 2 .

[0064] In an exemplary embodiment, Fig.24 As shown, when the gap maintaining component 4 is clamped on the guide member 3 and the elbow portion 211, the dimensions of the hook portion 42 and the plug-in portion 43 in the thickness direction of the heating space 11 are smaller than the thickness of the heating space 11, and the dimension of the lug portion 41 in the thickness direction of the heating space 11 is smaller than the thickness of the heating space 11.

[0065] Specifically, the dimensions of the ear portion 42 and the plug-in portion 43 in the thickness direction of the heating space 11 are smaller than the thickness of the heating space 11, and the dimension of the lug portion 41 in the thickness direction of the heating space 11 is smaller than the thickness of the heating space 11. This is conducive to the gap maintaining component 4, the heating element 2 and the guide member 3 being smoothly inserted into the heating space 11 of the shell 1 after being assembled together.

[0066] In an exemplary embodiment, a first guiding bevel is provided at the notch of the positioning slot 16; and / or, a second guiding bevel is provided at the notch of the hanging slot 34; and / or, a third guiding bevel is provided at the notch of the plug-in slot 33.

[0067] Specifically, the guiding bevel structure facilitates smooth plugging and unplugging operations.

[0068] In an exemplary embodiment, Figure 5 , Fig.11 and Fig.12 As shown, the gap retaining member 4 is configured to be formed by bending an elastic filament, and the gap retaining member 4 is clamped to the heating member 2 and the flow guide member 3 so that the end of the heating member 2 away from the insertion port 12 is supported on the flow guide member 3 .

[0069] Specifically, Figure 5 In the illustrated heating device embodiment, the gap retaining component 4 is clamped to the heating element 2 and the flow guide 3, and a guiding and positioning structure is provided between the flow guide 3 and the shell 1, so that the heating element 2 is limited in position relative to the flow guide 3 and the shell 1 by the gap retaining component 4.

[0070] In an exemplary embodiment, Fig.11 As shown, the heating element 2 is a U-shaped heating rod, and the heating element 2 includes an elbow portion 211 away from the insertion port 12 ; the gap retaining component 4 is located at the elbow portion 211 .

[0071] like Fig.10 As shown, the gap retaining member 4 is configured to be bent from an elastic filament; the gap retaining member 4 includes two first U-shaped portions 47 with openings facing each other, a limiting portion 48 connected to the two first U-shaped portions 47, and a gap retaining portion 48 extending in the thickness direction of the heating space 11 (such as Figure 5 The direction of the arrow in the figure indicates the thickness direction of the heating space 11) and two second U-shaped portions 49 are spaced apart from each other.

[0072] like Fig.11 and Fig.12 As shown, the two first U-shaped portions 47 are respectively sleeved at the two ends of the elbow portion 211 and tightly matched with the elbow portion 211. The flow guide 3 is provided with a limiting groove 35 matched with the limiting portion 48, and the limiting groove 35 is provided on two end surfaces of the flow guide 3 that are arranged opposite to each other and protrude from the heating element 2, and the limiting portion 48 is embedded in the corresponding limiting groove 35.

[0073] The two second U-shaped portions 49 clamp the middle portion of the elbow portion 211 and are tightly matched with the elbow portion 211 to support the elbow portion 211 .

[0074] Specifically, Fig.11The assembly process of the gap retaining component 4 of this embodiment is shown in which the gap retaining component 4 is installed to the elbow portion 211 of the heating component 2 and is clamped in the limiting groove 35 of the guide component 3. Fig.11 The direction of the arrow indicates the moving direction of the gap maintaining component 4. The gap maintaining component 4 moves close to the heating element 2. The gap maintaining component 4 can be made of stainless steel and has a small wire diameter, so that the gap maintaining component 4 has high elasticity, toughness and hardness. The gap maintaining component 4 first contacts the heating element 2, and then contacts the guide frame 3. The heating element 2 enters the space enclosed by the gap maintaining component 4. In the process of continuing to push the gap maintaining component 4, the gap maintaining component 4 is deformed and stretched. When the limiting portion 48 of the gap maintaining component 4 is pushed into the limiting groove 35 of the guide member 3, the stretched and deformed gap maintaining component 4 recovers and rebounds, so that the gap maintaining component 4, the heating element 2 and the guide member 3 are clamped and limited together. At this time, the gap maintaining component 4 is clamped into the limiting groove 35 of the guide member 3, and the second U-shaped portion 49 presses the elbow 211 position of the heating element 2.

[0075] In an exemplary embodiment, Figure 5 and Fig.10 As shown, the ends of the two second U-shaped portions 49 away from the insertion port 12 are arranged to be bent toward each other to restrict the elbow portion 211 from escaping from the gap retaining component 4 in a direction away from the insertion port 12 .

[0076] In an exemplary embodiment, Fig.10 and Fig.12 As shown, the limiting portion 48 includes a plurality of L-shaped ribs 481 , wherein two L-shaped ribs 481 are spaced apart from one end of a first U-shaped portion 47 and an adjacent second U-shaped portion 49 .

[0077] Specifically, the gap retaining member 4 is formed by bending an elastic thread-like member, and two L-shaped ribs 481 spaced apart between one end of a first U-shaped portion 47 and an adjacent second U-shaped portion 49 are the two ends of the thread-like member.

[0078] In an exemplary embodiment, Figure 3 and Figure 4 As shown, a gap is provided between the gap maintaining member 4 and the inner wall of the housing 1 .

[0079] Specifically, a gap is provided between the gap retaining member 4 and the inner wall of the housing 1 to prevent the gap retaining member 4 from obstructing the flow of water in the first gap 13 .

[0080] In an exemplary embodiment, when the gap retaining member 4 is in a natural state, the width of the inner side surfaces of the two first U-shaped portions 47 is smaller than the outer side surface distance between the first end and the second end of the elbow portion 211 .

[0081] Specifically, the inner side widths of the two first U-shaped portions 47 of the gap retaining component 4 are smaller than the widths of the two end portions of the elbow portion 211 of the heating element 2, so that the gap retaining component 4 is deformed and stretched open and stuck on the elbow portion 211, and then rebounds and resets. The reset elastic force of the gap retaining component 4 makes the gap value of the second gap 14 between the heating element 2 and the guide member 3 uniform.

[0082] An embodiment of the present application provides a toilet, comprising a heating device as described in any one of the above exemplary embodiments.

[0083] The toilet of the embodiment of the present application includes a heating device as described in any one of the above exemplary embodiments, and therefore has the structural features and advantages of the heating device described in any one of the above exemplary embodiments, which will not be elaborated here.

[0084] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0085] In addition, the terms "first", "second", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first", "second", etc. may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0086] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0087] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being “above”, “above”, and “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0088] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0089] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A heating device, characterized in that: include: A shell body having a heating space and an inlet communicating with the heating space; A heating element, comprising a heating portion, wherein the heating portion is arranged to be inserted into the heating space through the insertion port, and a first gap is formed between the heating portion and a wall surface of the heating space; a flow guide member located in the heating space, the flow guide member comprising a flow guide portion, a second gap being formed between the flow guide portion and the heating portion, the first gap and the second gap forming a heating flow channel surrounding an outer peripheral wall of the heating portion; and At least one gap maintaining component is located in the heating space, including a first end and a second end, the first end is arranged on the shell or the guide member; when the heating part is inserted into the heating space, the second end is located on the expected displacement path of the heating part relative to the heating space, so as to prevent the heating part from shifting in an unexpected direction relative to the heating space, so that the gap value of the first gap is within a predetermined numerical range.

2. The heating device according to claim 1, characterized in that The second end is located between the heating portion and a wall surface of the heating space, and the second end is located at one or more combinations of above, below and side of the heating portion.

3. The heating device according to claim 1, characterized in that: The heating element is a heating rod; The gap values ​​of the first gap and the second gap are equal.

4. The heating device according to claim 1, characterized in that The first end is supported on the guide member or the wall of the heating space; wherein: When the first end is supported on the guide member, the second end is supported between the heating portion and the wall surface of the heating space in a manner of crossing the heating portion; When the first end is supported on the wall surface of the heating space, the second end is configured to extend toward the heating portion.

5. The heating device according to any one of claims 1 to 4, characterized in that: It also includes a mounting seat, the mounting seat is connected to the shell and blocks the insertion port, and the heating element and the flow guide element are supported on the mounting seat; The heating device also includes a limiting portion, which is supported by the guide member or the mounting seat; the limiting portion is arranged close to the outer peripheral wall of the heating portion; during the process of inserting the heating portion into the heating space, the limiting portion prevents the heating portion from swinging toward the limiting portion relative to the shell.

6. The heating device according to claim 5, characterized in that: The gap retaining component is located at one end of the heating space away from the insertion port, and the limiting portion is located near the insertion port.

7. The heating device according to claim 5, characterized in that: The heating element comprises two connection ends supported on the mounting seat; the heating part is configured to extend from the two connection ends into the heating space and connect at a position away from the insertion port.

8. The heating device according to any one of claims 1 to 4, characterized in that: The second end or the gap maintaining member is configured to be deformable when subjected to pressure.

9. The heating device according to claim 8, characterized in that: The first end is supported on the guide member or the wall of the heating space; wherein: When the first end is supported on the guide member, the second end can apply force to the heating part to limit the heating part from being away from the guide member, so that the second gap meets a predetermined value range; When the first end is supported on the wall of the heating space, the second end extends to the guide member and is connected to the guide member, and the gap maintaining component limits the heating part between the wall of the heating space and the guide member, so that the gap values ​​of the first gap and the second gap are both within a predetermined numerical range.

10. A toilet, characterized in that: The heating device comprises the heating device as claimed in any one of claims 1 to 9.

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