Heating device, toilet stool and flow guide piece

Abstract

The invention provides a heating device, a toilet stool and a flow guide part. The heating device comprises a shell, a heating piece and a flow guide piece, the shell is provided with a heating cavity, and the heating piece is arranged in the heating cavity and used for heating water in the heating cavity; the flow guide part is arranged in the heating cavity and comprises a flow channel forming part and an air cavity, a heating flow channel is defined by the flow channel forming part, the inner wall of the heating cavity and the heating part, and the heating flow channel surrounds the outer side wall of the heating part; and the air cavity is communicated with the heating runner through the communicating gap. The heating device is provided with the air cavity, the water flow pressure and the water flow temperature in the heating flow channel can be balanced, and the stable water yield of the heating device is guaranteed.

Description

Technical Field

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

[0002] Smart toilets are usually equipped with a heating device to provide hot water for the human body cleaning component of the toilet. The heating device is provided with a heating chamber, and a heating element is provided in the heating chamber to heat the water in the heating chamber. The power source for obtaining hot water is to inject cold water into the heating chamber so as to discharge the hot water. The heating device of the prior art usually uses a voltage-stabilizing solenoid valve to control the water flow in the heating chamber, and uses a flowmeter to detect the water flow in the heating chamber. However, the water flow in the heating chamber is greatly affected by the water pressure of the water supply. When it is subjected to water hammer and sudden pressure reduction of the water source, the system of the heating device has no time to react, resulting in sudden changes in the water pressure in the heating chamber and fluctuations in the water flow, which leads to unstable drainage of the heating device, thus affecting the user experience. Summary of the invention

[0003] In order to solve the above problems, the present application provides a heating device, a toilet and a guide member, in which the heating device encloses a heating flow channel through the flow channel forming part of the guide member, the inner wall of the heating member and the shell, and the guide member is provided with an air cavity, which is connected to the heating flow channel through a connecting gap, so that the volume change of the gas in the air cavity is adapted to the water pressure change in the heating flow channel, thereby balancing the water pressure in the heating flow channel, and the gas in the air cavity can also exchange heat with the water in the heating flow channel, so as to stabilize the discharge volume and water outlet temperature of the heating device.

[0004] The specific technical solutions of the embodiments of this application are as follows: A heating device, comprising: A housing having a heating chamber; a heating element, disposed in the heating chamber, for heating water in the heating chamber; and A flow guide is arranged in the heating chamber, the flow guide includes a flow channel forming part and an air cavity, the flow channel forming part, the inner wall of the heating chamber and the heating element together enclose a heating flow channel, and the heating flow channel surrounds the outer wall of the heating element; the air cavity is connected to the heating flow channel through a connecting gap.

[0005] A toilet comprises a human body washing component and a heating device as described in the above embodiment, wherein the heating device is used to heat water to a predetermined temperature and provide the water to the human body washing component.

[0006] A flow guide, a heating device for a toilet, the heating device is used to heat water to a predetermined temperature and provide it to a human body washing component, the heating device comprises a shell and a heating element, the shell is provided with a heating cavity, the heating element is arranged in the heating cavity, and is used to heat the water in the heating cavity; The flow guide is arranged in the heating chamber, and the flow guide comprises a flow channel forming part and an air cavity, the flow channel forming part, the inner wall of the heating chamber and the heating element enclose a heating flow channel, and the heating flow channel surrounds the outer wall of the heating element; The air cavity is communicated with the heating flow channel through a communication gap.

[0007] The technical effects of the heating device in the embodiment of the present application are as follows: In the heating device of the embodiment of the present application, the flow guide is provided with an air cavity, and the air cavity is connected to the heating flow channel through a connecting gap, so that when the water pressure and flow rate in the heating flow channel increase, the water in the heating flow channel will flow to one side of the air cavity through the connecting gap, thereby compressing the gas in the air cavity, so that the gas with increased air pressure in the air cavity has a pressure stabilizing effect on the heating flow channel. When the water pressure and flow rate in the heating flow channel decrease, the gas in the air cavity will diffuse to one side of the heating flow channel through the connecting gap, and the gas volume in the air cavity will increase and the air pressure will decrease, thereby playing a role in stabilizing the water pressure of the water flow in the heating flow channel, thereby maintaining the water pressure balance in the heating flow channel and ensuring the stability of the water discharge of the heating device.

[0008] In addition, the water in the heating flow channel and the gas in the air cavity can also exchange heat through the connecting gap. When the water temperature in the heating flow channel is high, the gas in the air cavity can absorb the heat of the water in the heating flow channel through the connecting gap; when the water temperature in the heating flow channel decreases, the heat stored in the gas in the air cavity can be transferred to the water in the heating flow channel through the heating flow channel. In this way, the water flow temperature in the heating flow channel can be kept stable and the water temperature will not fluctuate greatly.

[0009] 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

[0010] 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.

[0011] Figure 1 This is a schematic structural diagram 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 This is a schematic structural diagram of a housing according to an embodiment of the present application; Figure 4 This is a schematic structural diagram of a flow guide member according to an embodiment of the present application; Figure 5 for Figure 1 A schematic cross-sectional structure diagram of a heating device; Figure 6 for Figure 5 A schematic diagram of the enlarged structure of the local part of the middle A; Figure 7 for Figure 5 Another cross-sectional structural schematic diagram of the heating device; Figure 8 This is a schematic structural diagram of a heating device according to another embodiment of the present application; Fig. 9 for Figure 8 A schematic diagram of the structure of the heating element and the mounting base of the central heating device; Fig.10 for Figure 8 A schematic structural diagram of a flow guide member of a central heating device; Fig.11 for Figure 8 A schematic diagram of the structure of the housing of the heating device; Fig.12 for Figure 8 A schematic cross-sectional structural diagram of a heating device; Fig.13 A schematic cross-sectional view of a heating device according to another embodiment of the present application; Fig.14 for Fig.13 A schematic diagram of the structure of the central heating element, the flow guide element and the mounting seat viewed from a viewing angle; Fig.15 for Fig.13 A schematic diagram of the structure of the heating element, the guide element and the mounting seat observed from another perspective; Fig.16 A schematic cross-sectional view of a heating device according to another embodiment of the present application; Fig.17 This is a schematic cross-sectional structural diagram of a heating device according to another embodiment of the present application; Fig.18 for Fig.17 A schematic diagram of the structure of a heating element, a second partition rib and a mounting seat of a heating device; Fig.19 This is a schematic cross-sectional structural diagram of a heating device according to another embodiment of the present application; Fig. 20 for Fig.19 A schematic diagram of the exploded structure of the heating device; Fig.21 for Fig.19 Another cross-sectional structural schematic diagram of the heating device; Fig. 22 for Fig.19 Another cross-sectional structural schematic diagram of the heating device; Fig.23 for Fig.19 Schematic diagram of the installation process of the heating device. DETAILED DESCRIPTION

[0012] The present application describes multiple embodiments, but the description is exemplary rather than restrictive, and it is obvious to those skilled in the art that there may be more embodiments and implementations within the scope of the embodiments described in the present application. Although many possible feature combinations are shown in the drawings and discussed in the specific embodiments, many other combinations of the disclosed features are also possible. Unless specifically limited, any feature or element of any embodiment may be used in combination with any other feature or element in any other embodiment, or may replace any other feature or element in any other embodiment.

[0013] Any feature shown and / or discussed in this application can be implemented individually or in any suitable combination. Therefore, except for the limitation made according to the attached claims and their equivalents, the embodiments are not subject to other restrictions. In addition, various modifications and changes can be made within the protection scope of the attached claims.

[0014] Please refer to the instruction manual Figure 1 To Attachment Fig.23 The schematic diagram of the structure of the heating device of the embodiment of the present application is shown in FIG. Figure 2 , Figure 5 , Figure 6 , Fig.12 , Fig.13 , Fig.16 , Fig.21 As shown, the embodiment of the present application provides a heating device, including a housing 1, a heating element 2 and a flow guide 3. The housing 1 is provided with a heating chamber 11; the heating element 2 is provided in the heating chamber 11, and is used to heat the water in the heating chamber 11; the flow guide 3 is provided in the heating chamber 11, and the flow guide 3 includes a flow channel forming portion 31 and an air cavity 32. The flow channel forming portion 31, the inner wall of the heating chamber 11 and the heating element 2 enclose a heating flow channel 12, and the heating flow channel 12 surrounds the outer wall of the heating element 2. The air cavity 32 is connected to the heating flow channel 12 through a connecting gap 13.

[0015] Specifically, in the heating device of the embodiment of the present application, a heating channel 12 is enclosed by the channel forming portion 31 of the guide member 3, the inner wall of the heating chamber 11 and the heating element 2. The water in the heating channel 1 surrounds the circumferential outer side surface of the heating element 2. The water flow path direction of the heating channel 12 is the same as the length extension direction of the heating element 2, thereby increasing the contact area between the water in the heating channel 12 and the outer side wall of the heating element 2. The water in the heating channel 12 is fully heated, thereby improving the heating efficiency of the heating device.

[0016] In the heating device of the embodiment of the present application, the air cavity 32 of the flow guide 3 is filled with gas, and the air cavity 32 is connected to the heating flow channel 12 through the connecting gap 13, so that when the water pressure and flow rate in the heating flow channel 12 increase, the water in the heating flow channel 12 will flow to the side of the air cavity 32 through the connecting gap 13, thereby compressing the gas in the air cavity 32, so that the gas with increased air pressure in the air cavity 32 has a pressure stabilizing effect on the heating flow channel 12. When the water pressure and flow rate in the heating flow channel 12 decrease, the gas in the air cavity 32 will diffuse to the side of the heating flow channel 12 through the connecting gap 13, and the gas volume in the air cavity 32 will increase and the air pressure will decrease, thereby playing a role in stabilizing the water pressure of the water flow in the heating flow channel 12. It is worth noting that since the height of the connecting gap 13 is small and the flow rate of water or gas entering the connecting gap 13 is small, the connecting gap 13 will not affect the main flow rate in the heating channel 12, and there will be no situation where more water in the heating channel 12 enters the connecting gap 13 and the air cavity 32. The connecting gap 13 plays a role in connecting and balancing the pressure between the heating channel 12 and the air cavity 32, thereby maintaining the water pressure balance in the heating channel 12 and ensuring the stability of the drainage volume of the heating device.

[0017] Furthermore, the water in the heating flow channel 12 and the gas in the air cavity 32 can also exchange heat through the connecting gap 13. When the water temperature in the heating flow channel 12 is high, the gas in the air cavity 32 can absorb the heat of the water in the heating flow channel 12 through the connecting gap 13; when the water temperature in the heating flow channel 12 decreases, the heat stored in the gas in the air cavity 32 can be transferred to the water in the heating flow channel 12 through the heating flow channel 12. In this way, the water flow temperature in the heating flow channel 12 can be kept stable, and the water temperature will not fluctuate greatly.

[0018] Furthermore, bubbles are generated when the heating element 2 heats water, so that a certain amount of bubbles are mixed in the water flow of the heating flow channel 12 , and a small amount of bubbles also follow the water flow through the connecting gap 13 into the air cavity 32 .

[0019] In an exemplary embodiment, Figure 5 , Figure 6 , Fig.12 , Fig.13 , Fig.16 and Fig.21 As shown, the air cavity 32 is disposed in the flow channel forming portion 31 , and the air cavity 32 has a first opening 321 opening downward, and the first opening 321 is connected to the heating flow channel 12 through the connecting gap 13 .

[0020] Specifically, since the gas has a tendency to float upward, the opening of the gas cavity 32 is arranged to face downward, which is conducive to the gas cavity 32 storing the gas.

[0021] In an exemplary embodiment, Figure 5 , Figure 6 , Fig.12 , Fig.13 , Fig.16 and Fig.21 As shown, the position of the air cavity 32 is higher than or equal to the position of the communication gap 13 .

[0022] Specifically, the position of the air cavity 32 is higher than or equal to the position of the communication gap 13 , so that the gas in the air cavity 32 can be stored in the air cavity 32 and will not overflow into the heating channel 12 through the communication gap 13 .

[0023] Alternatively, if Figure 6 , Fig.12 , Fig.13 , Fig.16 and Fig.21 As shown, the communication gap 13 is connected to the bottom of the heating channel 12, and the gas in the air cavity 32 directly balances the pressure and the water temperature with the water flow at the bottom of the heating channel 12 through the communication gap 13. In this way, the first opening 321 of the air cavity 32 can be set to be flush with the communication gap 13, so that the air cavity 32 can be made as low as possible relative to the bottom wall of the heating chamber 11, thereby reducing the volume and space occupied by the flow guide 3.

[0024] It can be understood that the connecting gap 13 can also be connected to other positions of the heating channel 12 except the bottom. The position height of the air cavity 32 is higher than or equal to the connecting gap 13. The gas in the air cavity 32 balances the water pressure and heat exchange of the water flow in the heating channel 12 through the connecting gap 13.

[0025] In an exemplary embodiment, the flow guide 3 abuts against the inner wall of the heating chamber 11 , and at least part of the communication gap 13 is provided on the inner wall of the heating chamber 11 and / or the flow guide 3 .

[0026] Specifically, when designing and processing the guide member 3 and / or the inner wall of the heating chamber 11, a connecting gap 13 can be designed and processed on the inner wall of the heating chamber 11 and / or the guide member 3. After the guide member 3 and the shell 1 are assembled together, the connecting gap 13 located on the inner wall of the heating chamber 11 and / or the guide member 3 can be connected to the air cavity 32 so as to balance the water pressure and water temperature changes in the heating flow channel 12.

[0027] In an exemplary embodiment, Figure 6 , Fig.21 and Fig. 22 As shown, there is a gap between the guide member 3 and the inner wall of the heating chamber 11 , and the gap includes at least a partial communicating gap 13 .

[0028] Specifically, when the guide member 3 and the housing 1 are assembled, a gap may be provided between the outer surface of the guide member 3 and the inner wall of the heating chamber 11, and at least part of the gap is used to form the connecting gap 13. The structure is simple in design and process, and there is no need to additionally process and design the connecting gap 13 on the guide member 3 and / or the housing 1.

[0029] In an exemplary embodiment, the guide member 3 and the inner wall of the heating chamber 11 are in abutment with each other, and at least a portion of the connecting gap 13 is provided on the inner wall of the heating chamber 11 and / or the guide member 3; there is a gap between the guide member 3 and the inner wall of the heating chamber 11, and the gap includes at least a portion of the connecting gap 13.

[0030] Specifically, a portion of the communication gap 13 can be arranged on the inner wall of the heating chamber 11 and / or the flow guide 3, and a portion of the communication gap 13 can be located at the gap position between the flow guide 3 and the inner wall of the heating chamber 11. This structural design expands the structural design and type of the communication gap 13 of the present application.

[0031] In an exemplary embodiment, the shape of the communication gap 13 includes a through-hole shape.

[0032] Specifically, at least a portion of the communication gap 13 can be configured as a plurality of through holes, and the through holes are used to communicate the air cavity 32 and the heating channel 12 .

[0033] In an exemplary embodiment, the shape of the communication gap 13 includes a long strip.

[0034] Specifically, the communication gap 13 can be configured to be one or more long strips extending along the extension direction of the heating channel 12 .

[0035] In an exemplary embodiment, the long connecting gap 13 extends along the extending direction of the heating channel 12 .

[0036] Specifically, at least a portion of the connecting gap 13 extends along the extension direction of the heating channel 12, so that the gas in the air cavity 32 can balance the water pressure and water temperature of the water flow in the heating channel 12 along the entire extension direction of the heating channel 12, so that the air cavity 32 has a better effect on the water pressure balance and water temperature balance of the water flow in the heating channel 12.

[0037] In an exemplary embodiment, the shape of the communication gap 13 includes a through hole shape, and the shape of the communication gap 13 includes a long strip shape, and the long strip-shaped communication gap 13 extends along the extension direction of the heating channel 12 .

[0038] Specifically, the shapes of the communication gaps 13 include both through-hole shapes and long strip shapes, which enriches the structural design of the communication gaps 13 and expands the types of the communication gaps 13 .

[0039] In an exemplary embodiment, Figure 6 As shown, the height of the flow cross section of the communication gap 13 is d, wherein 0.01 mm≤d≤0.2 mm.

[0040] Specifically, the height d of the flow cross section of the communication gap 13 referred to herein refers to an actual measured height, rather than a designed height of a theoretical model.

[0041] If the height value of the flow cross section of the connecting gap 13 is large, more water in the heating flow channel 12 will flow into the air cavity 32, affecting the normal operation of the air cavity 32. Therefore, when the measured height of the flow cross section of the connecting gap 13 is set to be less than or equal to 0.2 mm, it will not affect the main flow in the heating flow channel 12, and more water in the heating flow channel 12 will not enter the connecting gap 13 and the air cavity 32. If the height value of the flow cross section of the connecting gap 13 is small, the water in the heating flow channel 12 and the gas in the air cavity 32 will not be able to pass through the connecting gap 13 smoothly, so that the air cavity 32 cannot balance the water pressure and water temperature in the heating flow channel 12.

[0042] Therefore, when setting the height range of the flow cross section of the communication gap 13 , it is necessary to ensure that the communication gap 13 plays a role in connecting and balancing the pressure between the heating flow channel 12 and the air cavity 32 .

[0043] Optionally, when designing the theoretical model, the theoretical height value of the flow cross section of the communication gap 13 can be set to 0.1 mm. Due to the manufacturing tolerance and assembly tolerance of the parts of the heating device, after installation, the actual measured height value of the flow cross section of the communication gap 13 can be 0.15 mm, 0.2 mm, and its maximum height value is not greater than 0.2 mm.

[0044] It can be understood that the air cavities 32 can be provided as a plurality of spaced apart arrangements, so that a plurality of connecting gaps 13 can be provided between the plurality of air cavities 32 and the heating channel 12. Alternatively, only one connecting gap 13 can be provided, and the connecting gap 13 extends along the extending direction of the heating channel 12. Therefore, the theoretical value of the connecting gap 13 can also be set to be a plurality or a single one.

[0045] In an exemplary embodiment, the average value of the height of the flow cross section of the communication gap 13 is d, wherein 0.05 mm≤d≤0.12 mm.

[0046] Specifically, the height value d of the flow cross section of the communication gap 13 refers to the actual measured height value. Along the length extension direction of the heating channel 12, the actual measured values ​​of the height value d of the flow cross section of the communication gap 13 at different positions are different. In some embodiments, the average value of the height value d of the flow cross section of the communication gap 13 is in the range of 0.05 mm to 0.12 mm, which can play the role of connecting and balancing the pressure between the heating channel 12 and the air cavity 32.

[0047] In an exemplary embodiment, Figure 7 and Fig.19 As shown, the air cavity 32 includes a plurality of sub-cavities 322 , and the plurality of sub-cavities 322 are arranged at intervals along the extension direction of the heating channel 12 .

[0048] Specifically, the air cavity 32 is configured to include a plurality of sub-cavities 322, so that the air cavity 32 can better store gas and enhance the reliability of the gas in the air cavity 32 balancing the water pressure of the water flow in the heating flow channel 12. If the gas in one sub-cavity 322 leaks out and cannot balance the water pressure in the heating flow channel 12, the gas in other sub-cavities 322 can still balance the water pressure of the water flow in the heating flow channel 12.

[0049] Furthermore, the air cavity 32 is configured to be a plurality of sub-cavities 322 spaced apart along the extension direction of the heating channel 12 , so that partitions are provided between the plurality of sub-cavities 322 of the flow guide 3 , and the plurality of spaced apart partitions have the function of strengthening the structural strength of the flow guide 3 .

[0050] In an exemplary embodiment, the air cavity 32 includes a sub-cavity 322 , and the sub-cavity 322 extends along the extension direction of the heating channel 12 .

[0051] Specifically, the air cavity 32 includes a sub-cavity 322, and the structure is simple in design and easy to process.

[0052] In an exemplary embodiment, Figure 5 , Figure 7 , Fig.12 , Fig.13 , Fig.16 and Fig.21 As shown, the heating element 2 is a heating rod 21, and there is a first gap 14 between the heating rod 21 and the shell 1, and there is a second gap 15 between the heating rod 21 and the flow channel forming portion 31; the first gap 14 and the second gap 15 form a heating flow channel surrounding the outer wall of the heating rod 21, and the first gap 14 and the second gap 15 extend along the extension direction of the heating rod 21.

[0053] Specifically, there is a first gap 14 between the heating rod 21 and the housing 1, and a second gap 15 between the heating rod 21 and the flow channel forming portion 31, so that the water flow in the heating flow channel 12 can enter the first gap 14 and the second gap 15, so that the contact area between the water flow in the heating flow channel 12 and the side wall surface of the heating rod 21 is large, and the water in the heating flow channel 12 is heated and heated up quickly, which is conducive to improving the heating efficiency of the heating device. In addition, a flow gap is set between the heating rod 21 and the housing 1, and between the heating rod 21 and the flow channel forming portion 31, which is conducive to increasing the volume of the heating flow channel 13, so that a larger volume of water in the heating chamber 11 is heated and heated and quickly discharged.

[0054] In an exemplary embodiment, Figure 5 , Figure 6 , Fig.12 , Fig.13 , Fig.16 and Fig.21 As shown, the cavity wall of the heating cavity 11 is provided with a first concave surface 111 adapted to the heating rod 21, the flow channel forming portion 31 is provided with a second concave surface 311 adapted to the heating rod 21, the first gap 14 is located between the first concave surface 111 and the heating rod 21, and the second gap 15 is located between the second concave surface 311 and the heating rod 21. Specifically, the first concave surface 111 and the second concave surface 311 are adapted to the outer wall of the heating rod 21, so that the cross section of the heating flow channel 12 is a ring shape surrounding the outer side wall of the heating rod 31, which is conducive to increasing the contact area between the water in the heating flow channel 12 and the outer side wall of the heating rod 21, thereby improving the heating efficiency of the heating device and allowing the water in the heating cavity 11 to heat up quickly.

[0055] In addition, a first concave surface 111 is provided in the heating chamber 11, and a second concave surface 311 is provided in the flow guide 3, so as to form a part of the side wall surface of the heating flow channel 12. This structural design is easy to design, process and assemble.

[0056] In an exemplary embodiment, the first concave surface 111 and the second concave surface 311 are arranged concentrically with the heating rod 21 and are equidistant from each other.

[0057] Specifically, the gap between the outer ring side wall of the annular heating channel 12 and the side wall surface of the heating rod 21 is uniform, so that the heating rod 21 has a balanced heating effect on the water at different positions surrounding its outer side wall, which is beneficial to stabilizing the drainage water temperature of the heating device.

[0058] In an exemplary embodiment, Figure 5 , Fig.12 and Fig.21As shown, the outer wall surface of the guide member 3 includes a first end edge portion 312 and a second end edge portion 313, the first end edge portion 312 and the second end edge portion 313 are respectively connected to the two edges of the flow channel forming portion 31, a connecting gap 13 is formed between one of the first end edge portion 312 and the second end edge portion 313 and the cavity wall of the heating cavity 11, and the other of the first end edge portion 312 and the second end edge portion 313 is connected to the shell 1.

[0059] Specifically, by adjusting the connection position between one of the first end edge portion 312 and the second end edge portion 313 and the shell 1, the position relationship of the other of the first end edge portion 312 and the second end edge portion 313 relative to the cavity wall of the heating cavity 11 can be adjusted, thereby adjusting the height of the flow cross-section of the connecting gap 13.

[0060] It can be understood that the connection relationship between the other of the first end edge portion 312 and the second end edge portion 313 and the shell 1 can be a variety of specific connection forms such as snap connection, bonding, and screw connection, all of which are within the protection scope of the present application. Figure 5 and Fig.12 In the illustrated embodiment, the connection relationship is a snap connection, that is, the protrusion of the first end edge portion 312 is snap-connected in the groove of the housing 1 .

[0061] In an exemplary embodiment, Figure 3-Figure 5 , Fig.12 and Fig.21 As shown, the first end edge portion 312 is located on the upper side of the second end edge portion 313 , a connecting gap 13 is formed between the second end edge portion 313 and the cavity wall of the heating cavity 11 , and the first end edge portion 312 is connected to the shell 1 so that the guide member 3 is fixed to the shell 1 .

[0062] Specifically, a connecting gap 13 is formed between the second end edge 313 located at the lower part of the guide member 3 and the wall of the heating chamber 11, so that the air cavity 32 and the first opening 321 of the air cavity 32 can be arranged close to the lower part of the guide member 3, so that the height of the guide member 3 is designed to be as low as possible, thereby reducing the space occupied by the guide member 3.

[0063] The first end edge portion 312 is connected to the shell 1 so that the guide member 3 is fixed to the shell 1, and the first end edge portion 312 and the inner wall of the shell 1 can be connected to form a sealing structure to prevent the water flow in the heating channel 12 from leaking from the gap between the first end edge portion 312 and the inner wall of the shell 1, thereby ensuring that the water flow in the heating chamber 11 flows in the heating channel 12 according to the set path.

[0064] It can be understood that the connection relationship between the first end edge portion 312 and the shell 1 can be various specific connection forms such as snap connection, bonding, screw connection, etc., all of which are within the protection scope of the present application.

[0065] In an exemplary embodiment, Fig.23 As shown, the shell 1 is provided with an opening 17, and the heating element 2 and the guide element 3 are inserted into the heating chamber 11 via the opening 17. The inner wall of the heating chamber 11 has a snap-fitting portion extending along the insertion direction, and the guide element 3 has a snap-fitting portion. The snap-fitting portion is inserted into the heating chamber 11 in a sliding manner relative to the snap-fitting portion, and the snap-fitting portion is snapped into the snap-fitting portion.

[0066] Specifically, Fig.23 The arrow direction in the figure indicates the moving direction of the components during the assembly process. During the assembly process of the heating device, the snap-fitting portion of the flow guide 3 is inserted into the heating chamber 11 in a manner of sliding relative to the snap-fitting portion on the inner wall of the shell 1, and the combination of the flow guide 3 and the heating element 2 is moved along the heating chamber 11. Fig.13 The guide member 3, the heating member 2 and the housing 1 can be assembled by directly pushing the guide member 3, the heating member 2 and the housing 1 in the insertion direction indicated by the arrow. This method can simplify the assembly process and facilitate the assembly and disassembly of the heating device.

[0067] In an exemplary embodiment, Figure 3-Figure 5 As shown, the first end edge portion 312 and the second end edge portion 313 extend along the extension direction of the heating rod 21; the first end edge portion 312 is provided with a supporting rib 3121, and the cavity wall of the heating cavity 11 is provided with a step groove 112 and a limiting groove 113 recessed in the groove wall of the step groove 112; the first end edge portion 312 is limited in the step groove 112, and the supporting rib 3121 is clamped in the limiting groove 113.

[0068] Specifically, the support rib 3121 is clamped in the limit groove 113 to connect the first end edge 312 and the inner wall of the shell 1 into a sealing structure, which can strengthen the connection strength between the first end edge 312 and the inner wall of the shell 1 and more effectively prevent the water flow in the heating channel 12 from leaking from the gap between the first end edge 312 and the inner wall of the shell 1.

[0069] In an exemplary embodiment, Figure 2-Figure 4 , Figure 7 As shown, the first concave surface 111 , the heating rod 21 and the second concave surface 311 all extend in a U shape, and the heating flow channel 12 and the connecting gap 13 extend in a U shape.

[0070] Specifically, the U-shaped heating channel 12 can ensure that the water flow is in full contact with the side wall surface of the heating rod 21, so that the water heats up quickly. The cross-section of the U-shaped heating channel 12 is small, so that the flow rate of the heating channel 12 is faster and the heating efficiency is higher.

[0071] Optionally, the heating channel 12 and the connecting gap 13 both extend in a U shape, and the air cavity 32 is connected to the bottom of the heating channel 12 through the connecting gap 13 so that the gas in the air cavity 32 balances the water pressure of the water flow in the entire extension direction of the heating channel 12.

[0072] In an exemplary embodiment, Figure 9-12 As shown, the first concave surface 111, the heating rod 21 and the second concave surface 311 all extend in a tortuous serpentine shape, the heating flow channel 12 and the connecting gap 13 extend in a tortuous serpentine shape, and the two ends of the heating rod 21 face the same direction.

[0073] Alternatively, if Fig.12 As shown, the gas in the air cavity 32 is connected to the bottom of the serpentine-extending heating channel 12 through the connecting gap 13, so that the gas in the air cavity 32 balances the water pressure of the water flow within the entire serpentine extension length of the heating channel 12.

[0074] It is understandable that the heating rod 21 is arranged to extend in a tortuous serpentine shape, which can expand the types and application scope of the heating device. The serpentine heating channel 12 can design a longer flow path, thereby increasing the water capacity of the heating channel 12, making the water temperature in the heating channel 12 more evenly mixed.

[0075] In an exemplary embodiment, Figure 13-Figure 16 As shown, a first partition rib 4 is provided in the heating channel 12, and the first partition rib 4 includes a first sub-rib 41 and a second sub-rib 42 which are arranged in parallel and spaced apart; the first sub-rib 41 and the second sub-rib 42 extend along the extension direction of the heating channel 12, and separate the heating channel 12 into a first sub-channel 121 and a second sub-channel 122; the first sub-channel 121 is connected to the second sub-channel 122 through a connecting port 123.

[0076] like Fig.16 As shown, the first sub-rib 41 and the second sub-rib 42 are arranged at intervals in the vertical direction, and the communication gap 13 is connected to the sub-flow channel close to the flow guide 3; or Fig.13 As shown, the first sub-rib 41 and the second sub-rib 42 are arranged at intervals in the horizontal direction, and the connecting gap 13 is connected with the sub-channel located at the bottom.

[0077] Specifically, Figure 13-Figure 15 This is a schematic diagram of the structure of a heating device according to an embodiment of the present application. Fig.16 This is a schematic diagram of the structure of a heating device according to another embodiment of the present application. In the above embodiments, the heating channels 12 are all laminated channels. Figure 13-Figure 15 The arrows in FIG. 1 show the water flow direction of the stacked heating channel 12. Water enters the first sub-channel 121 from the first water inlet 114, flows along the first sub-channel 121, and then flows as shown in FIG. Fig.15 As shown, the water enters the second sub-channel 122 through the communication port 123 and is finally discharged from the first water outlet 161. The first sub-channel 121 and the second sub-channel 122 are stacked channels in the vertical direction. Fig.16In the heating device embodiment, the first sub-rib 41 and the second sub-rib 42 separate the heating channel 113 into stacked channels spaced apart in the horizontal direction, and the heating channel 12 enters the first sub-channel 121 from the first water inlet 114 and then enters the second sub-channel 122.

[0078] It can be understood that a plurality of first partition ribs 4 can be provided, so as to divide the heating flow channel 12 into a plurality of sub-flow channels distributed in layers.

[0079] It is worth noting that the heating channel 12 is divided into two or more layers of sub-channels in a stacked arrangement, so that the length of the water flow path in the heating chamber 11 is doubled, while the flow cross-section of the heating channel 12 is reduced. In this way, the flow velocity of the heating channel 12 is doubled, which is beneficial for the heating device to quickly discharge warm water and the water temperature flowing through the heating channel 12 is evenly mixed.

[0080] Fig.13 As shown, in the heating device, the air cavity 32 is connected to the bottom of the first sub-channel 121 at the bottom of the heating cavity 11 through the connecting gap 13. Fig.16 As shown, in the heating device, the air cavity 32 is connected to the second sub-channel 122 near the guide member 3 through the connecting gap 13. The position arrangement of the connecting gap 13 can reduce the height of the air cavity 32 of the guide member 3, making the structure design of the guide member 3 and the heating chamber 11 more compact.

[0081] In an exemplary embodiment, Figure 17-Figure 18 As shown, a spiral second partition rib 5 is provided in the heating channel 12. The second partition rib 5 is wound around the outer wall of the heating rod 21 and together with the heating rod 21, the shell 1 and the guide member 3, a spiral channel 124 is enclosed. The connecting gap 13 is at least connected to the bottom of the spiral channel 124.

[0082] Specifically, the length of the water flow path of the spiral flow channel 124 is longer than that of the laminated flow path provided with the first partition rib 4, and the flow path cross-section is smaller and the flow velocity is faster. When water flows along the spiral flow channel 124, the water flow is in a turbulent state, and the inner layer of water in contact with the side wall of the heating rod 21 is always in a state of replacement with the outer layer of water in the flow path cross-section, so the water has a mixing effect during the flow process. The water on the surface of the heating rod 21 is quickly replaced, thereby reducing the probability that the water temperature outside the side wall of the heating rod 21 rises to the boiling point, thereby reducing the generation of bubbles. In addition, the water flow velocity of the spiral flow channel 124 is faster, which reduces the probability of bubbles gathering and becoming larger, and is also conducive to the water flow to carry away the bubbles.

[0083] The gas in the air cavity 32 of the guide member 3 is connected to at least the bottom of the spiral flow channel 124 through the connecting gap 13, so that the gas in the air cavity 32 can balance the pressure and exchange heat with the water flow in the spiral flow channel 124, thereby ensuring the water pressure balance of the water flow in the spiral flow channel 124, the stability of the drainage volume of the heating device, and the stability of the drainage water temperature of the heating device.

[0084] In an exemplary embodiment, Figure 3 and Fig.21 As shown, the heating chamber 11 is provided with a first water inlet 114 , which is communicated with the heating channel 12 ; the shell 1 is also provided with a mixing chamber 16 , which is communicated with the heating channel 12 , and the mixing chamber 16 is provided with a first water outlet 161 .

[0085] Specifically, the water flowing through the heating channel 12 is heated by the heating element 2. Since the water flowing near the outer wall of the heating element 2 has a higher temperature, and the water flowing away from the outer wall of the heating element 2 has a lower temperature, the temperature distribution of the water flowing in the heating channel 12 is uneven. The water flowing in the heating channel 12 flows into the mixing chamber 16, and the mixing chamber 16 can further mix the water flowing and flow, so that the water flow and water temperature are mixed more evenly, so that the first water outlet 161 of the heating device can discharge hot water with stable water temperature.

[0086] In an exemplary embodiment, Figure 3 , Figure 5 , Fig.11 and Fig.21 As shown, the cavity wall of the mixing cavity 16 is provided with a second water inlet 162 , and the flow guide member 3 is provided with a connecting flow channel connecting the heating flow channel 12 and the second water inlet 162 .

[0087] Specifically, Figure 4 , Figure 5 and Fig.14 As shown, after the water flows into the heating channel 12 from the first water inlet 114, it flows along the heating channel 12, is heated by the heating element 2, and then flows into the second water inlet 162 through the connecting channel of the guide member 3, and then enters the mixing chamber 16 to make the water temperature evenly mixed, and finally is discharged from the first water outlet 161. The second water inlet 162 and the connecting channel of the guide member 3 have the function of connecting the heating chamber 11 and the mixing chamber 16.

[0088] In an exemplary embodiment, Fig.19 , Fig. 20 , Fig. 22 and Fig.23 As shown, an opening 17 is provided at one end of the heating chamber 11 , and the heating device further comprises a mounting seat 6 , which is connected to the housing 1 and covers the opening 17 ; the heating element 3 is supported on the mounting seat 6 .

[0089] A temperature measuring groove 33 is provided at one end of the flow guide 3 facing the mounting seat 6. The groove wall of the temperature measuring groove 33 and the mounting seat 6 enclose a temperature measuring chamber 18, and the temperature measuring chamber 18 is connected to the heating flow channel 12 and the mixing chamber 16. Along the water flow direction, the temperature measuring chamber 18 is located on the downstream side of the heating flow channel 12 and on the upstream side of the mixing chamber 16. The heating device also includes a temperature control switch assembly 7, which is mounted on the side of the mounting seat 6 away from the temperature measuring chamber 18.

[0090] Fig. 22 The middle arrow shows the water flow direction of the measuring chamber 18. The temperature measuring chamber 18 is distributed in a spiral shape. The water inlet of the temperature measuring chamber 18 is located at the central end of the spiral, and the water outlet of the temperature measuring chamber 18 is located at the radially outer end of the spiral. The water inlet of the temperature measuring chamber 18 is connected to the heating channel 12 through a first connecting channel (not shown in the figure), and the water outlet of the temperature measuring chamber 18 is connected to the second water inlet 162 through a second connecting channel (not shown in the figure). The connecting channel includes a first connecting channel and a second connecting channel.

[0091] like Fig.21 As shown, the arrow direction indicates the water flow direction of the mixing chamber 16 , the temperature sensor 8 is installed on the housing 1 , the probe of the temperature sensor 8 is installed on the mixing chamber 16 , and the temperature sensor 8 is used to measure the temperature of the mixing chamber 16 .

[0092] Specifically, the temperature control switch assembly 7 is mounted on the mounting seat 6, and the temperature control switch assembly 7 is arranged opposite to the temperature measuring chamber 18. The water is heated in the heating channel 12 and then enters the temperature measuring chamber 18. The water temperature in the temperature measuring chamber 18 can be transmitted to the temperature control switch assembly 7 through the mounting seat 6. Since the temperature measuring chamber 18 is located between the heating channel 12 and the mixing chamber 16 along the water flow direction, the water temperature of the water heated in the heating channel 12 can be fed back to the temperature control switch assembly 7 in a timely manner. Compared with the method of using the temperature control switch assembly to measure the water temperature in the mixing chamber in the prior art, the temperature control switch assembly 7 of the present application is more sensitive to detect the water temperature fluctuation in the heating channel 12.

[0093] Fig.23 The schematic diagram of the installation structure of the heating device of the embodiment of the present application is as follows: first, the guide member 3 is inserted into the avoidance space enclosed by the heating member 2 and the mounting seat 6, so that the first end edge portion 312 of the guide member 3 is located at the upper part of the heating member 3, and the second end edge portion 313 of the guide member 3 is located at the lower part of the heating member 3, and the temperature measurement cavity 18 is enclosed between one end of the guide member 3 and the mounting seat 6, and then the ends of the guide member 3 and the heating member 2 facing away from the mounting seat 6 are inserted into the heating cavity 11 of the shell 1, so that the mounting seat 6 covers the opening 17 of the shell 1, thereby, the heating member 2, the guide member 3 and the cavity wall of the heating cavity 11 enclose the heating flow channel 12. The temperature control switch assembly 7 is installed to the side of the mounting seat 6 facing away from the heating cavity 11, and the probe of the temperature sensor 8 is installed to the mixing cavity 16.

[0094] An embodiment of the present application provides a toilet, including a human body cleaning component and a heating device as described in any one of the above exemplary embodiments, wherein the heating device is used to heat water to a predetermined temperature and provide the water to the human body cleaning component.

[0095] Specifically, the toilet according to 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 as described in any one of the above exemplary embodiments, which will not be elaborated here.

[0096] The embodiment of the present application also provides a flow guide, a heating device for a toilet, the heating device is used to heat water to a predetermined temperature and provide it to a human body washing component, the heating device includes a shell and a heating element, the shell is provided with a heating cavity, the heating element is arranged in the heating cavity, and is used to heat the water in the heating cavity; The flow guide is arranged in the heating chamber, and the flow guide comprises a flow channel forming part and an air cavity. The flow channel forming part, the inner wall of the heating chamber and the heating element enclose a heating flow channel, and the heating flow channel surrounds the outer wall of the heating element. The air cavity is communicated with the heating flow channel through a communication gap.

[0097] Specifically, the guide member of the embodiment of the present application is provided with an air cavity, which is connected to the heating flow channel through a connecting gap, so that the gas in the air cavity can change in volume as the water pressure in the heating flow channel changes, so that the gas in the air cavity can balance the water pressure changes in the heating flow channel, and the gas in the air cavity can balance the water temperature changes in the heating flow channel.

[0098] It can be understood that the flow channel forming part of the flow guide, the heating element and the inner wall of the shell heating chamber enclose a heating flow channel. The setting of the flow guide enables the heating flow channel of the heating device to extend along the extension direction of the heating element, and the heating flow channel surrounds the outer wall of the heating element, ensuring that the water in the heating flow channel is in full contact with the heating element, so that the water in the heating flow channel flows according to the planned path. In addition, the flow guide is set in the heating chamber so that a large cavity will not be formed inside the heating chamber, thereby improving the heating efficiency and drainage efficiency of the heating device.

[0099] In an exemplary embodiment, the height of the flow cross section of the communication gap is d, wherein 0.01 mm≤d≤0.2 mm.

[0100] Specifically, the height d of the flow cross section of the communication gap referred to herein refers to the actual measured height, rather than the designed height of the theoretical model.

[0101] If the height of the flow section of the connecting gap is too large, more water and bubbles in the heating channel will flow into the air cavity, affecting the normal operation of the air cavity. Therefore, when setting the height of the flow section of the connecting gap, it will not affect the main flow in the heating channel, and will not cause more water in the heating channel to enter the connecting gap and the air cavity.

[0102] If the height value of the flow cross section of the connecting gap is small, the water in the heating channel and the gas in the air cavity will not be able to pass through the connecting gap smoothly, so that the air cavity cannot balance the water pressure and water temperature in the heating channel.

[0103] Therefore, when setting the height range of the flow cross section of the connecting gap, it is necessary to ensure that the connecting gap plays a role in connecting and balancing the pressure between the heating flow channel and the air cavity.

[0104] In an exemplary embodiment, the average value of the height of the flow cross section of the communication gap is d, wherein 0.05 mm≤d≤0.12 mm.

[0105] Specifically, the height value d of the flow cross section of the connecting gap refers to the actual measured height value. Along the length extension direction of the heating flow channel, the actual measured values ​​of the height value d of the flow cross section of the connecting gap at different positions are different. The height value d of the flow cross section of the connecting gap is limited to the range of 0.05mm to 0.12mm, so that the height value fluctuation range of the flow cross section of the connecting gap is not large, so that the height of the flow cross section of the connecting gap in the embodiment of the present application is more balanced, and the air cavity has similar effects on the water pressure balance and water temperature balance of the heating flow channel.

[0106] 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.

[0107] 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.

[0108] 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.

[0109] 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.

[0110] 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.

[0111] 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 the 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 housing having a heating chamber; A heating element, disposed in the heating chamber, for heating water in the heating chamber; and A flow guide is arranged in the heating chamber, the flow guide includes a flow channel forming part and an air cavity, the flow channel forming part, the inner wall of the heating chamber and the heating element together enclose a heating flow channel, and the heating flow channel surrounds the outer wall of the heating element; the air cavity is connected to the heating flow channel through a connecting gap.

2. The heating device according to claim 1, characterized in that The air cavity is disposed in the flow channel forming portion, and the air cavity has a first opening opening facing downward, and the first opening is communicated with the heating flow channel through the communication gap.

3. The heating device according to claim 2, characterized in that: The position of the air cavity is higher than or equal to the position of the communication gap.

4. The heating device according to claim 3, characterized in that: The guide member abuts against the inner wall of the heating chamber, and at least part of the communication gap is provided on the inner wall of the heating chamber and / or the guide member; and / or, A gap is provided between the flow guide and the inner wall of the heating chamber, and the gap includes at least a portion of the communicating gap.

5. The heating device according to claim 3, characterized in that: The shape of the connecting gap includes a through hole shape and / or a long strip shape; Wherein, the long strip-shaped connecting gap extends along the extending direction of the heating flow channel.

6. The heating device according to claim 1, characterized in that: The height of the flow cross section of the communication gap is d, wherein 0.01 mm≤d≤0.2 mm.

7. The heating device according to claim 1, characterized in that: The average value of the height of the flow cross section of the communication gap is d, wherein 0.05 mm≤d≤0.12 mm.

8. The heating device according to claim 1, characterized in that The air cavity includes a plurality of sub-cavities, which are arranged at intervals along the extension direction of the heating channel; or, the air cavity includes one sub-cavity, which extends along the extension direction of the heating channel.

9. The heating device according to any one of claims 1 to 8, characterized in that The heating element is a heating rod, and there is a first gap between the heating rod and the shell, and a second gap between the heating rod and the flow channel forming portion; the first gap and the second gap form a heating flow channel surrounding the outer wall of the heating rod, and the first gap and the second gap extend along the extension direction of the heating rod.

10. The heating device according to claim 9, characterized in that The outer wall surface of the guide member includes a first end edge portion and a second end edge portion, the first end edge portion and the second end edge portion are respectively connected to the two edges of the flow channel forming portion, one of the first end edge portion and the second end edge portion forms the connecting gap with the cavity wall of the heating cavity, and the other of the first end edge portion and the second end edge portion is connected to the shell.

11. The heating device according to claim 10, characterized in that The shell is provided with an opening, and the heating element and the guide element are inserted into the heating chamber via the opening. The inner wall of the heating chamber is provided with a snap-fitting portion extending along the insertion direction, and the guide element is provided with a snap-fitting portion. The snap-fitting portion is inserted into the heating chamber in a sliding manner relative to the snap-fitting portion, and the snap-fitting portion is snap-fitted to the snap-fitting portion.

12. A toilet, characterized in that: The invention comprises a human body washing component and a heating device as claimed in any one of claims 1 to 11, wherein the heating device is used for heating water to a predetermined temperature and providing the water to the human body washing component.

13. A flow guide, characterized in that: A heating device for a toilet, the heating device is used to heat water to a predetermined temperature and provide the water to the human body washing component, the heating device comprises a housing and a heating element, the housing is provided with a heating chamber, the heating element is arranged in the heating chamber, and is used to heat the water in the heating chamber; The flow guide is arranged in the heating chamber, and the flow guide comprises a flow channel forming part and an air cavity, the flow channel forming part, the inner wall of the heating chamber and the heating element enclose a heating flow channel, and the heating flow channel surrounds the outer wall of the heating element; The air cavity is communicated with the heating flow channel through a communication gap.

14. The heating device according to claim 13, characterized in that The height of the flow cross section of the communication gap is d, wherein 0.01 mm≤d≤0.2 mm.

15. The heating device according to claim 13, characterized in that The average value of the height of the flow cross section of the communication gap is d, wherein 0.05 mm≤d≤0.12 mm.

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