Heating device and manufacturing method therefor, and household appliance

Abstract

The present invention relates to the technical field of heating devices. Disclosed are a heating device and a manufacturing method therefor, and a household appliance. The heating device specifically comprises a heating accessory, water nozzles, and second supports. The heating accessory is provided with at least one fluid channel and fluid interfaces arranged at two ends of the fluid channel; the water nozzles are detachably connected to the respective fluid interfaces; the second supports are connected to the side of the heating accessory facing the water nozzles, a second through hole is formed in each second support, and one end of the corresponding water nozzle passes through and extends out of the second through hole, wherein the water nozzle can be moved into or out of the second through hole and can be detachably mounted to the fluid interface. The water nozzle can directly extend into the through hole and be mounted to the fluid interface, greatly simplifying the mounting steps of the water nozzle. In addition, the water nozzle can also be directly removed via the second through hole without removing the corresponding second support, thereby facilitating maintenance or replacement of the water nozzle.

Description

A heating device, its manufacturing method, and a household appliance Technical Field

[0001] This invention relates to the field of heating device technology, and in particular to a heating device, its manufacturing method, and a household appliance. Background Technology

[0002] Heating devices are the main components of household heating appliances such as floor scrubbers, garment steamers, washing machines, and dishwashers. When these appliances are working, water from their tanks is injected into the heating device for heating or evaporation, and the resulting hot water or steam flows out from the working surface of the appliance, thus meeting the needs of different household appliances.

[0003] The heating device of a household appliance is equipped with a water channel. An inlet and an outlet are provided on the surface of the chamber. Cold water enters the chamber through the inlet and flows through the water channel to the steam outlet. During this process, the heating element heats the water inside the chamber, generating steam which is discharged from the steam outlet. Water nozzles are installed at both the inlet and outlet. One end of the heating device is connected to the water tank of the household appliance through a water nozzle and a pipe, and the other end is connected to the outlet or steam outlet of the heating appliance through a water nozzle and a pipe, thereby enabling the household appliance to work.

[0004] In the prior art, the water tap of the heating device is formed by welding. During welding, one end of the water tap needs to be clamped to the water inlet and outlet of the heating device, and the height of the water tap needs to be adjusted to ensure that the water tap is connected to the water channel of the heating device and maintains a suitable distance from the bottom of the water channel. Finally, the water tap and the water inlet and outlet of the heating device are welded together. After the heating device is fitted with an outer shell, it is installed on the household appliance and used as the core heating unit.

[0005] In existing technology, faucets are fixed to the inlet and outlet of a heating device by welding. When assembling the heating unit of a household appliance, the faucet is first welded to the inlet and outlet of the heating device, and then the housing is fitted onto both sides of the heating device, with the faucet protruding from the holes in the housing. However, this design has a significant drawback: when the faucet needs maintenance or replacement, the housing must be disassembled to operate on it. This process is not only cumbersome but also greatly increases the time cost and labor intensity of maintenance.

[0006] Therefore, this application can effectively solve the problem of low efficiency in water tap maintenance and replacement when the heating device and the housing are installed. Summary of the Invention

[0007] The main objective of this invention is to provide a heating device, its manufacturing method, and a household appliance, which aims to improve the efficiency of water tap maintenance and replacement when the heating device is installed in the housing.

[0008] To achieve the above objectives, the present invention provides a heating device, comprising:

[0009] A heating accessory having at least one fluid channel and fluid interfaces disposed at both ends of the fluid channel;

[0010] A water tap, detachably connected to the fluid interface; and

[0011] The second bracket is connected to the side of the heating accessory facing the water nozzle. The second bracket is provided with a second through hole, through which one end of the water nozzle extends.

[0012] The water nozzle can be moved in or out of the second through hole and can be attached to or detached from the fluid interface.

[0013] Furthermore, the second bracket is provided with a shielding member around the second through hole, the shielding member partially shielding the second through hole and located around the water nozzle.

[0014] Furthermore, the water nozzle includes a plug-in portion and a limiting portion disposed on the outer wall of the water nozzle. The water nozzle is rotatably mounted at the second through hole and can be switched to a first rotation position or a second rotation position. When the water nozzle is in the first rotation position, the limiting portion is misaligned with the blocking member, and the water nozzle can move out of the fluid interface along the thickness direction of the second bracket. When the water nozzle is in the second rotation position, the limiting portion overlaps with the blocking member to restrict the water nozzle from moving out of the fluid interface along the thickness direction of the second bracket.

[0015] Furthermore, the shielding member includes a shielding part disposed at the second through hole. When the water nozzle is in the second rotation position, the shielding part is in the movement path of the limiting part along the thickness direction of the second bracket.

[0016] Furthermore, the blocking part is a stop connected to the second bracket or a protruding rib integrally formed on the second bracket.

[0017] Furthermore, the shielding member includes a pressing part disposed at the second through hole, and a sealing element is also installed between the fluid interface and the water nozzle. When the shielding member is installed with the heating accessory, the pressing part presses the sealing element tightly against the fluid interface.

[0018] Furthermore, the water nozzle is cylindrical, L-shaped, or T-shaped.

[0019] Furthermore, one end of the plug portion is provided with a blocking portion, which is used to engage with the fluid interface.

[0020] This application also discloses a method for manufacturing a heating device, the method comprising:

[0021] A metal plate is selected and stamped to form a water channel plate with ribs. A heat-conducting plate is covered with the water channel plate and welded to form a heating accessory with fluid cavities. A heating element is welded to one side of the heat-conducting plate. Fluid interfaces are provided at both ends of the ribs.

[0022] A seal is installed at the fluid interface, and a second bracket and a first bracket are respectively installed on the surface of the water channel plate and the heat conduction plate; wherein, the second bracket is provided with a second through hole for aligning with the fluid interface;

[0023] Insert the water nozzle through the second through hole and attach it to the fluid interface.

[0024] This application also discloses a household appliance equipped with the above-described heating device or a heating device obtained by the above-described manufacturing method.

[0025] The above technical solution has the following advantages:

[0026] This invention optimizes the connection structure between the heating element and the water tap by installing a second bracket on the side of the heating element facing the fluid channel, and providing a second through hole aligned with the fluid interface on this bracket. The water tap can be directly inserted into and installed at the fluid interface through this through hole, greatly simplifying the installation process. Simultaneously, the water tap can be directly removed through the second through hole without disassembling the second bracket, facilitating maintenance or replacement. Furthermore, this invention allows for flexible replacement of different types of water taps to meet varying product requirements, significantly improving product versatility.

[0027] To further optimize the installation accuracy and stability of the faucet, this invention incorporates a blocking mechanism around the second through hole. This blocking mechanism restricts the faucet's installation position, ensuring correct assembly. Simultaneously, a limiting part is provided on the outer wall of the faucet, which can be misaligned with the blocking mechanism. Once the faucet is in place, rotating the limiting part locks it in a specific position, thus limiting rotation and ensuring a fixed angle. This design not only improves the reliability of faucet installation but also facilitates connection to water supply or drainage pipes, further enhancing product usability and user experience. Attached Figure Description

[0028] The present invention will now be described in detail with reference to specific embodiments and accompanying drawings, wherein:

[0029] Figure 1 is a structural schematic diagram of the present invention from a first perspective;

[0030] Figure 2 is an exploded structural diagram of the present invention;

[0031] Figure 3 is a structural schematic diagram of the present invention from a second perspective;

[0032] Figure 4 is a cross-sectional structural diagram of the present invention;

[0033] Figure 5 is an enlarged view of point A in Figure 4 of this invention;

[0034] Figure 6 is a schematic diagram of the structure of the present invention with the first support removed;

[0035] Figure 7 is a structural schematic diagram of the first embodiment of the water tap of the present invention;

[0036] Figure 8 is a structural schematic diagram of the second water tap embodiment of the present invention.

[0037] In the diagram: 1. Heating accessory; 11. Water channel plate; 12. Heat-conducting plate; 13. Heating element; 14. Fluid cavity; 15. Fluid interface; 16. Sealing element; 17. Temperature control element; 2. First bracket; 21. First shell cover; 22. Connecting part; 23. First through hole; 3. Second bracket; 31. Second shell cover; 32. Second through hole; 33. Shielding member; 331. Shielding part; 332. Pressing part; 4. Water nozzle; 41. Insertion part; 42. Limiting part; 43. Blocking part. Embodiments of the present invention

[0038] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the following specific embodiments are only used to explain the invention and do not constitute a limitation thereof.

[0039] As shown in Figures 1 and 2, a heating device includes a heating accessory 1, a water nozzle 4, and a second bracket 3. The heating accessory 1 has at least one fluid channel 14 and fluid interfaces 15 disposed at both ends of the fluid channel 14. The water nozzle 4 is detachably connected to the fluid interface 15. The second bracket 3 is connected to the side of the heating accessory 1 facing the water nozzle 4. The second bracket 3 is provided with a second through hole 32, and one end of the water nozzle 4 passes through and extends out of the second through hole 32. The water nozzle 4 can be moved into or out of the second through hole 32 and is detached from the fluid interface 15.

[0040] As one embodiment of this application, the heating accessory 1 can be a product of several shapes, such as a fluid channel 14 formed by a plate covering or a fluid channel 14 formed by a cylindrical covering. The fluid channel 14 can be selected in different shapes, such as a snake-shaped, mosquito coil-shaped, or U-shaped. The fluid channel 14 is only used to increase the flow path of the fluid and improve the heating time of the liquid or gas. The second support 3 corresponding to the heating accessory 1 is also set according to the shape of the heating accessory 1. For example, if a cylindrical covering fluid channel 14 is used, an arc-shaped second support 3 is required. The shape of the fluid channel 14 is not specifically limited here. In this application, the heating accessory 1 is preferably formed by welding a water channel plate 11 and a heat-conducting plate 12 together, because it has lower production and installation costs and occupies less space.

[0041] Specifically, the water nozzle 4 can be directly inserted through the second through hole 32 and installed and removed from the fluid interface 15. During installation and removal, the water nozzle 4 can be sealed at the fluid interface 15, which improves the ease of installation and removal of the water nozzle 4 and also ensures the normal maintenance and replacement of the water nozzle 4.

[0042] As shown in Figures 1, 2, 7, and 8, in one embodiment of this application, the water tap 4 includes a plug-in portion 41 and a limiting portion 42 disposed on the outer wall of the water tap 4. The plug-in portion 41 is the part of the water tap 4 that plugs into the fluid interface 15. The through hole in the plug-in portion 41 communicates with the fluid cavity 14, allowing water vapor to flow into or out of the fluid cavity 14. Preferably, water flows into the fluid cavity 14. After the second bracket 3 is installed on the heating accessory 1, the plug-in portion 41 extends into the second through hole 32 and can be directly installed and removed from the fluid interface 15. The specific installation method of the water tap 4 is as follows:

[0043] As one embodiment of this application, the water nozzle 4 can be directly inserted into the fluid interface 15, that is, the insertion part 41 extends into the fluid interface 15, and the end of the water nozzle 4 away from the insertion part 41 passes through the second through hole 32 to the first housing, so that the water pipe can be connected to the water nozzle 4 to complete the work of water inlet or outlet, and can also be used for air inlet or outlet, so that the water nozzle 4 is directly embedded in the fluid interface 15. This installation method is simple. The water nozzle 4 and the fluid interface 15 are interference fit to ensure the sealing performance of the water nozzle 4 and the fluid interface 15. Preferably, the sealing element 16 at the water nozzle 4 and the fluid interface 15 is squeezed to seal.

[0044] As one embodiment of this application, fasteners such as rivets or bolts can be provided on the limiting part 42 outside the water nozzle 4. When the water nozzle 4 extends into the second through hole 32 and is connected to the fluid interface 15, the limiting part 42 can be installed on the first housing by rivets or bolts to fix the water nozzle 4. If disassembly is required, only the bolts or rivets need to be removed, and the water nozzle 4 can be directly taken out from the fluid interface 15, which improves the installation convenience of the water nozzle 4. At the same time, the locking of the limiting part 42 can increase the pressing force of the water nozzle 4 on the fluid interface 15 and ensure the sealing of the connection.

[0045] As shown in Figures 1, 2, 7, and 8, in a preferred embodiment of this application, the second bracket 3 is provided with a blocking member 33 around the second through hole 32. The blocking member 33 partially blocks the second through hole 32 and is located around the water nozzle 4. When the water nozzle 4 is inserted into the fluid interface 15, the water nozzle 4 can be rotatably installed in the second through hole 32. The water nozzle 4 can be rotatably installed in the second through hole 32 and can be switched between a first rotation position and a second rotation position. When the water nozzle 4 is in the first rotation position, the limiting part 42 is misaligned with the blocking member 33, and the water nozzle 4 can move along the thickness of the second bracket 3. When the water nozzle 4 is in the second rotation position, the limiting part 42 overlaps with the blocking member 33 to restrict the water nozzle 4 from moving out of the fluid interface 15 along the thickness direction of the second bracket 3. The area of ​​the second through hole 32 is larger than the cross-sectional area of ​​the water nozzle 4 to ensure that the water nozzle 4 extends out of the second through hole 32. At the same time, the blocking member 33 can partially block the second through hole 32 to prevent the limiting part 42 on the outer wall of the water nozzle 4 from moving. In this application, the blocking member 33 preferably has at least one side tangent to the outer wall of the water nozzle 4 so that the water nozzle 4 can be installed accurately when it is inserted.

[0046] Specifically, when the water nozzle 4 is in the first rotation position, the limiting part 42 and the blocking member 33 are misaligned in the thickness direction of the first housing, allowing the water nozzle 4 to be moved toward the fluid interface 15 until the through hole of the insertion part 41 connects to the fluid cavity 14. At this time, the limiting part 42 is below the blocking member 33. Then, the water nozzle 4 is rotated from the first rotation position to the second rotation position, so that the limiting part 42 on the water nozzle 4 gradually rotates to directly below the blocking member 33. The blocking member 33 prevents the limiting part 42 from moving out along the thickness direction of the first housing, thus allowing the water nozzle 4 to be installed at the fluid interface 15. Then, a water pipe is connected to one end of the water nozzle 4. The connection position of the water pipe limits the rotation direction of the water nozzle 4, ensuring that the water nozzle 4 is always in the second rotation position during use, so as to prevent the water nozzle 4 from falling off the fluid interface 15.

[0047] As shown in Figures 2, 4, and 5, the shielding member 33 includes a shielding portion 331 disposed at the second through hole 32. The shielding portion 331 is a stop connected to the second bracket 3 or a protruding rib integrally formed on the second bracket 3. The stop can be a baffle, bracket, or block, and the baffle, bracket, or block can be directly fixed to the second bracket 3. For example, the baffle, bracket, or block can be installed on the second bracket 3 by fasteners or adhesive. If the second bracket 3 is made of metal, the baffle, bracket, or block can also be welded to the second bracket 3. In this application, the shielding portion 331 is preferably integrally formed on the second bracket 3, and can be directly formed by mold to reduce... Low production cost. When the water nozzle 4 is in the second rotation position, the blocking part 331 is in the movement path of the limiting part 42 along the thickness direction of the second bracket 3. The blocking part 331 can take different shapes, such as one or more arc blocks set on the edge of the second through hole 32. The limiting part 42 on the outer wall of the water nozzle 4 can take different shapes, such as one or more blocks protruding from the outer wall of the water nozzle 4. On the cross section of the second through hole 32, the limiting part 42 can move in or out from the notch of one or more arc blocks. When the water nozzle 4 switches from the first rotation position to the second rotation position, at least one limiting part 42 overlaps with the arc block to prevent the water nozzle 4 from moving out of the fluid interface 15.

[0048] In this application, the shielding part 331 preferably consists of two arc blocks symmetrically arranged at the edge of the second through hole 32. When the water nozzle 4 is inserted into the fluid interface 15, the limiting part 42 is staggered with the arc blocks, the limiting part 42 is aligned with the notch of the arc block, the insertion part 41 extends into the fluid cavity 14, and the limiting part 42 is pressed tightly against the fluid interface 15. At this time, the water nozzle 4 is switched from the first rotation position to the second rotation position, the limiting part 42 rotates from the notch of the arc block and coincides with the arc block, completing the installation. If it is necessary to disassemble the water nozzle 4, simply rotate the water nozzle 4 from the second rotation position to the first rotation position, so that the limiting part 42 rotates to the notch of the arc block, and pull the water nozzle 4 outward to complete the installation. It should be noted that when the water nozzle 4 is in the second rotation position, the limiting part 42 and the arc block overlap, and the rotation angle of the water nozzle 4 can be limited by a pin or bolt.

[0049] As shown in Figures 7 and 8, the water nozzle 4 is cylindrical, L-shaped, or T-shaped. Its specific shape can be determined according to needs. For example, if the water nozzle 4 is L-shaped, it is convenient to adjust the turning angle of the water nozzle 4 according to the direction of water supply and outlet. For example, in the direction of water supply and outlet, the water nozzle 4 is in the second rotation position. If the angle adjustment range of the water nozzle 4 is increased, a single C-shaped arc block and a limiting part 42 to compensate for the gap of the C-shaped arc block can be used to improve the space utilization of the equipment and reduce the bending degree of the water pipe connection to prevent water blockage.

[0050] As shown in Figures 4 and 5, in one embodiment of this application, the shielding member 33 includes a pressing part 332 disposed at the second through hole 32. A sealing member 16 is also installed between the fluid interface 15 and the water nozzle 4. When the shielding member 33 is installed with the heating accessory 1, the pressing part 332 presses the sealing member 16 against the fluid interface 15. Preferably, the pressing part 332 is integrally formed with the second bracket 3. When the second bracket 3 is installed with the heating accessory 1, the pressing part 332 presses the edge of the sealing member 16, so that the sealing member 16 is always pressed against the fluid interface. At point 15, the sealing performance of the seal 16 at the fluid interface 15 and the water nozzle 4 is improved. At the same time, the edge of the seal 16 is pressed, and its middle part can push the limiting part 42 upward, so that the limiting part 42 is close to the blocking part 331, thereby increasing the friction between the limiting part 42 and the sealing part 16 and the blocking part 331. Meanwhile, a water pipe is installed at the top of the water nozzle 4, and the strap on the water pipe can be attached to the limiting part 42. When the water nozzle 4 rotates, the limiting part 42 on its outer wall can rotate the strap to below the blocking part 331, thereby improving the tightening effect of the strap on the end of the water pipe.

[0051] As shown in Figure 2, the second bracket 3 includes a second cover 31 mounted on the water channel plate 11. The second cover 31 is fixed to the water channel plate 11 on all four sides. A second through hole 32 is opened on the second cover 31 and faces the fluid interface 15. A shielding member 33 is located around the second through hole 32. In addition, the second cover 31 is also provided with an outwardly extending mounting bracket for mounting on different products.

[0052] As shown in Figures 2 and 6, the heating accessory 1 of this application is preferably formed by welding a water channel plate 11 and a heat-conducting plate 12, so that at least one continuous fluid cavity 14 is formed between the water channel plate 11 and the heat-conducting plate 12. Preferably, a serpentine fluid cavity 14 is used. A heating element 13 is installed on the side of the heat-conducting plate 12 away from the water channel plate 11. Heat is generated by the heating element 13 and transferred to the fluid cavity 14 through the heat-conducting plate 12, thereby heating the water in the fluid cavity 14. The heating element 13 can be an electric heating film or an electric heating wire, preferably an electric heating tube, such as a U-shaped electric heating tube. The U-shaped electric heating tube is assembled on the heat-conducting plate 12, and a temperature control device 17 is installed at the bend of the U-shaped electric heating tube. The temperature control device 17 can be an NTC thermistor electronic temperature controller or a mechanical temperature controller, such as a snap-action mechanical temperature controller. The type is not limited.

[0053] Several protrusions are also provided on the large surface of the heat-conducting plate 12. These protrusions together define the shape of a heating element, ensuring that the position of the heating element can be restricted during welding, thereby improving the accuracy and efficiency of welding. Both the heat-conducting plate 12 and the water channel plate 11 are provided with process holes and corresponding protrusions, so that when the heat-conducting plate 12 and the water channel plate 11 are closed, the assembly position of the heat-conducting plate 12 and the water channel plate 11 can be ensured, ensuring unique assembly and preventing reverse or misaligned closing, which could lead to problems such as subsequent welding errors or loose welding.

[0054] As shown in Figures 1 and 2, a first bracket 2 is also installed on one side of the heat-conducting plate 12. The first bracket 2 includes a first shell cover 21 and connecting parts 22 arranged around the first shell cover 21. The connecting parts 22 are columnar, block-shaped, or frame-shaped, and are fixed to the heat-conducting plate 12. To ensure the structural space of the entire heating device, the first shell cover 21, the water channel plate 11, the heat-conducting plate 12, and the second shell cover 31 are all fixed around the same fastener. A first through hole 23 is also provided in the middle of the first shell cover 21. The first through hole 23 is aligned with the temperature control device 17 installed on the heat-conducting plate 12, which facilitates timely observation and replacement of the temperature control device 17.

[0055] As shown in Figures 7 and 8, a blocking part 43 is provided at one end of the plug-in part 41. The blocking part 43 is used to engage with the fluid interface 15. The blocking part 43 is preferably welded or integrally formed on the plug-in part 41. The front end of the blocking part 43 has an arc-shaped chamfer. When the plug-in part 41 is inserted into the fluid interface 15, the arc-shaped chamfer facilitates the insertion of the blocking part 43 into the fluid interface 15. The end of the blocking part 43 facing the limiting part 42 has a step, which can be locked at the fluid interface 15 when it is moved into the fluid interface 15. Especially when the I-shaped seal 16 is installed at the fluid interface 15, the step and the limiting part 42 are respectively locked on the top and bottom sides of the seal 16.

[0056] This application includes the following advantages: the water nozzle 4 can be directly replaced through the second through hole 32 without removing the second bracket 3, improving the maintenance and replacement of the water nozzle 4; during assembly, the water nozzle 4 is interference-fitted with the fluid interface 15 to ensure the sealing performance of the water nozzle 4 and the fluid interface 15, ensuring that the water nozzle 4 is sealed at the fluid interface 15; the limiting part 42 can be locked with fasteners to increase the pressing force of the water nozzle 4 on the fluid interface 15, ensuring the sealing performance of the connection; the blocking member 33 partially blocks the second through hole 32 and is located on the periphery of the water nozzle 4, allowing the water nozzle 4 to rest against the inner wall of the blocking member 33, keeping the water nozzle 4 in a vertical position, ensuring the installation position of the water nozzle 4, and preventing the water nozzle 4 from being installed at an angle, which would affect its sealing effect.

[0057] The water nozzle 4 can be switched between the first rotation position and the second rotation position, which facilitates the adjustment of the position between the limiting part 42 and the blocking member 33, ensuring that the water nozzle 4 can be locked in or removed from the fluid interface 15. The connection position of the water pipe limits the rotation direction of the water nozzle 4, ensuring that the water nozzle 4 is always in the second rotation position during use, so as to prevent the water nozzle 4 from falling off the fluid interface 15. The use of a single C-shaped arc block and the limiting part 42 that fills the gap of the C-shaped arc block improves the space utilization of the equipment and reduces the bend of the water pipe connection to prevent water blockage.

[0058] When the second bracket 3 is installed on the heating accessory 1, the pressing part 332 presses the edge of the seal 16, so that the seal 16 is pressed tightly at the fluid interface 15, improving the sealing performance of the seal 16 at the fluid interface 15 and the water nozzle 4. At the same time, the edge of the seal 16 is pressed, and its middle part can push the limiting part 42 upward, so that the limiting part 42 is close to the blocking part 331, improving the friction between the limiting part 42 and the sealing part 16 and the blocking part 331. Meanwhile, a water pipe is installed at the top of the water nozzle 4, and the strap on the water pipe can be hung on the limiting part 42. When the water nozzle 4 rotates, the limiting part 42 on its outer wall can rotate the strap to below the blocking part 331, improving the tightening effect of the strap on the end of the water pipe.

[0059] Of course, any product implementing this invention does not necessarily need to achieve all of the advantages described above at the same time.

[0060] As shown in Figures 1 and 2, a method for manufacturing a heating device includes:

[0061] A metal plate is selected and stamped to form a water channel plate 11 with ribs. A heat-conducting plate 12 is fitted onto the water channel plate 11, and a heating accessory 1 with a fluid cavity 14 is formed by welding. A heating element 13 and a temperature control element 17 are welded to one side of the heat-conducting plate 12. Fluid interfaces 15 are provided at both ends of the ribs. The ribs have a serpentine shape. After the water channel plate 11 and the heat-conducting plate 12 are fitted together, laser welding can be used. Specifically, a continuous fluid cavity 14 needs to be formed by welding around the ribs. Brazing is preferred, that is, the water channel plate 11, the heat-conducting plate 12 and the heating element 13 are brazed together. After the above two welding methods are completed, the temperature control element 17 can be installed.

[0062] As shown in Figures 1 and 2, a sealing element 16 is assembled at the fluid interface 15, and a second bracket 3 and a first bracket 2 are respectively installed on the surfaces of the water channel plate 11 and the heat conduction plate 12. The second bracket 3 has a second through hole 32 for aligning with the fluid interface 15. The sealing element 16 is preferably I-shaped. When the sealing element 16 is engaged with the fluid interface 15, the first bracket 2 and the second bracket 3 can be installed on different surfaces of the heat conduction plate 12 and the water channel plate 11.

[0063] The water nozzle 4 is inserted through the second through hole 32 and assembled at the fluid interface 15. The water nozzle 4 can be cylindrical, L-shaped, T-shaped or Y-shaped. The water nozzle 4 can be directly inserted through the second through hole 32 as needed, and the insertion part 41 is inserted into the fluid interface 15. The step of the blocking part 43 is below the seal 16, and the limiting part 42 is pressed on the top of the seal 16, which can restrict the water nozzle 4 at the seal 16. At this time, the water nozzle 4 is in the first rotation position. Then, when the water nozzle 4 rotates from the first rotation position to the second rotation position, the assembly of the water nozzle 4 is completed.

[0064] As shown in Figures 2 to 5, after the water tap 4 is installed, the insertion part 41 is assembled at the seal 16, the blocking part 43 is snapped into the bottom inner ring of the seal 16, and the limiting part 42 is fitted against the top outer ring of the seal 16. Because there is some pressure inside the fluid cavity 14, the step of the blocking part 43 will gradually press against the seal 16 to ensure the stability of the water tap 4. At the same time, the insertion part 41 and the heated surface of the fluid cavity 14 are separated from each other to avoid the insertion part 41 directly contacting the heated surface of the fluid cavity 14, so as to avoid the aging and deformation of the seal 16 due to high temperature. If the water tap 4 is made of plastic material, the risk of deformation or melting of the water tap 4 can be avoided.

[0065] A household appliance is provided with the aforementioned heating device. Household appliances include, but are not limited to, floor scrubbers, garment steamers, washing machines, dishwashers, and other household heating appliances. Due to the small water supply, this application preferably provides non-drinking household appliances.

[0066] The above description is merely a preferred embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformations made using the contents of the present invention's specification and drawings under the inventive concept of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A heating device, characterized in that, include: Heating accessory (1) having at least one fluid channel (14) and fluid interfaces (15) disposed at both ends of the fluid channel (14); A water tap (4) is detachably connected to the fluid interface (15); and The second bracket (3) is connected to the side of the heating accessory (1) facing the water tap (4). The second bracket (3) is provided with a second through hole (32), and one end of the water tap (4) passes through and extends out of the second through hole (32). The water nozzle (4) can be moved in or out of the second through hole (32) and can be attached to or detached from the fluid interface (15).

2. The heating device as described in claim 1, characterized in that, The second bracket (3) has a shielding member (33) around the second through hole (32), the shielding member (33) partially shields the second through hole (32) and is located around the water nozzle (4).

3. The heating device as described in claim 2, characterized in that, The water nozzle (4) includes a plug-in portion (41) and a limiting portion (42) disposed on the outer wall of the water nozzle (4). The water nozzle (4) is rotatably mounted at the second through hole (32) and can be switched to a first rotation position or a second rotation position. When the water nozzle (4) is in the first rotation position, the limiting portion (42) is misaligned with the blocking member (33), and the water nozzle (4) can move out of the fluid interface (15) along the thickness direction of the second bracket (3). When the water nozzle (4) is in the second rotation position, the limiting portion (42) overlaps with the blocking member (33) to restrict the water nozzle (4) from moving out of the fluid interface (15) along the thickness direction of the second bracket (3).

4. The heating device as described in claim 3, characterized in that, The shielding member (33) includes a shielding part (331) disposed at the second through hole (32). When the water nozzle (4) is in the second rotation position, the shielding part (331) is in the movement path of the limiting part (42) along the thickness direction of the second bracket (3).

5. The heating device as described in claim 4, characterized in that, The shielding part (331) is a stop connected to the second bracket (3) or a protruding rib integrally formed on the second bracket (3).

6. The heating device according to any one of claims 2-5, characterized in that, The shielding member (33) includes a pressing part (332) disposed at the second through hole (32), and a sealing member (16) is also installed between the fluid interface (15) and the water nozzle (4). When the shielding member (33) is installed with the heating accessory (1), the pressing part (332) presses the sealing member (16) against the fluid interface (15).

7. The heating device as described in claim 3, characterized in that, The water tap (4) is cylindrical, L-shaped, or T-shaped.

8. The heating device as described in claim 3 or 7, characterized in that, One end of the plug (41) is provided with a blocking part (43), which is used to engage with the fluid interface (15).

9. A method for manufacturing a heating device, characterized in that, The production method includes: Select a metal plate and stamp it to form a water channel plate (11) with ribs. The heat-conducting plate (12) covers the water channel plate (11) and is welded to form a heating accessory (1) with a fluid cavity (14). A heating element (13) is welded to one side of the heat-conducting plate (12). Fluid interfaces (15) are provided at both ends of the ribs. A seal (16) is installed at the fluid interface (15), and a second bracket (3) and a first bracket (2) are installed on the surface of the water channel plate (11) and the heat conduction plate (12), respectively; wherein, a second through hole (32) aligned with the fluid interface (15) is provided on the second bracket (3); Insert the water nozzle (4) through the second through hole (32) and assemble it at the fluid interface (15).

10. A household appliance, characterized in that, The household appliance is equipped with a heating device as described in any one of claims 1-8 or a heating device obtained by the manufacturing method as described in claim 9.

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