A heating module and an instant heating water heating device

Abstract

This utility model relates to the field of hot water equipment technology, and more particularly to a heating module and an instantaneous hot water device. The heating module includes a heating element, a pump unit, and an integrated base. A heating tube is disposed inside the heating element, and the pump unit is located at the water inlet of the heating element, forming a volumetric pump chamber. The pump unit and the heating element are integrated and connected via the integrated base, which has a separate inlet chamber and an outlet channel. The inlet chamber communicates with the volumetric pump chamber, and the volumetric pump chamber communicates with the water inlet of the heating tube via the outlet channel. The integrated base has a mounting protrusion, the outer wall of which forms an inlet channel, and the interior of which forms a suction chamber communicating with the inlet chamber. A pressure regulating component is arranged between the inlet channel and the suction chamber to open and close the connection between the inlet channel and the suction chamber. This utility model enables control of the water flow within the heating module itself, preventing scale buildup due to internal water accumulation when the heating module is not in operation, and ensuring the heating efficiency of the heating module.

Description

Technical Field

[0001] This utility model relates to the field of hot water equipment technology, and in particular to a heating module and an instant hot water equipment. Background Technology

[0002] Common instant water heating devices, such as instant faucets, instant electric water heaters, or instant water dispensers, typically have a heating module inside. The heating module uses a water supply pump to pump the water to be heated into the heating tube of the heating module, so that the heating tube can heat the water and achieve instant heating.

[0003] When the heating module is connected to a positive pressure water source, the water pump can only be used to regulate the flow rate of the water entering the heating module, but cannot control the flow of water. The water from the positive pressure water source will be driven into the heating module by its own pressure and will gush out from the outlet. This causes water to accumulate in the heating chamber of the heating module when it is not working, resulting in dirt and affecting the subsequent heating efficiency of the heating module. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides a heating module and an instant hot water device that can control the water flow of the heating module itself, preventing scale buildup due to internal water accumulation when the heating module is not in operation, and ensuring the heating efficiency of the heating module.

[0005] To solve the above-mentioned technical problems, this utility model provides a heating module, including:

[0006] The heating element has a heating tube installed inside;

[0007] A pump assembly is located at the water inlet of the heating element, and the pump assembly forms a volumetric pump chamber.

[0008] An integrated base is provided, in which the pump assembly and the heating element are integrated and connected, and the integrated base forms a water inlet chamber and a water outlet channel that are separated from each other. The water inlet chamber is connected to the volumetric pump chamber, and the volumetric pump chamber is connected to the water inlet of the heating tube through the water outlet channel.

[0009] The integrated base has a mounting protrusion, the outer wall of the mounting protrusion has a water inlet channel, the interior of the mounting protrusion has a suction cavity, the suction cavity is connected to the water inlet cavity, and a pressure regulating component is arranged between the water inlet channel and the suction cavity, the pressure regulating component is used to switch the water inlet channel and the suction cavity on and off.

[0010] As an improvement to the above solution, the pressure regulating component includes a pressure diaphragm, a pressure rod, a sealing component, and an elastic component, wherein the elastic component and the sealing component are arranged in the water inlet channel along a predetermined direction;

[0011] A connecting hole is formed between the water inlet channel and the suction chamber. The pressure diaphragm is located on the inner wall surface of the suction chamber away from the connecting hole. The pressure head end of the pressure rod faces the pressure diaphragm. The pressure rod end of the pressure rod passes through the connecting hole and contacts the sealing member. The sealing member is adapted to block the connecting hole.

[0012] As an improvement to the above solution, the mounting protrusion is detachably connected to a first mounting block and a second mounting block, the pressure diaphragm and the pressure rod are arranged between the first mounting block and the mounting protrusion, and the elastic element and the sealing element are arranged between the second mounting block and the mounting protrusion.

[0013] As an improvement to the above solution, the first mounting block is formed with a balancing vent, and an atmospheric cavity is formed between the balancing vent and the pressure diaphragm. The atmospheric cavity is separated from the suction cavity by the pressure diaphragm.

[0014] As an improvement to the above solution, the pressure diaphragm is formed with an integrally molded fixed end and a pressure end, the fixed end being located between the first mounting block and the mounting protrusion, and the pressure end facing the suction cavity.

[0015] As an improvement to the above solution, the pump set includes:

[0016] A pump housing is connected to the integrated base, and a drive component is connected to the side of the pump housing opposite to the integrated base;

[0017] An elastic pump plug is disposed inside the pump housing, and the volumetric pump cavity is formed on the side of the elastic pump plug facing the integrated base;

[0018] The output shaft of the drive unit is eccentrically connected to an eccentric transmission component, the elastic pump plug is formed with an eccentric column, and the eccentric transmission component is connected to the eccentric column.

[0019] As an improvement to the above solution, the water inlet chamber and the volumetric pump chamber are connected unidirectionally via a first one-way valve;

[0020] The volumetric pump chamber and the water outlet channel are connected unidirectionally by a second one-way valve.

[0021] The water outlet channel and the water inlet of the heating pipe are connected unidirectionally by a third one-way valve.

[0022] As an improvement to the above solution, the integrated base has a first connecting part and a second connecting part, the pump set has a first mounting part, and the first connecting part is detachably connected to the first mounting part; the outer shell of the heating element has a second mounting part, and the second connecting part is detachably connected to the second mounting part.

[0023] As an improvement to the above solution, the integrated base also has a third connecting part, the water outlet of the water outlet channel is formed in the third connecting part, the water inlet of the heating tube is sleeved in the third connecting part, and a sealing element is arranged between the third connecting part and the heating tube.

[0024] Accordingly, this utility model also provides an instant hot water device, including a housing and a heating module as described in any one of the above, wherein the heating module is located inside the housing.

[0025] Implementing this utility model has the following beneficial effects:

[0026] In this embodiment, the heating module increases the volume of the pump chamber during pump operation to create a negative pressure environment in the pump chamber, inlet chamber, and suction chamber. Under the combined effect of the negative pressure environment in the suction chamber and the water flow pressure in the inlet channel, the pressure regulating component opens, connecting the suction chamber to the inlet channel. This allows water from the inlet channel to enter the pump unit and be pumped into the heating element for heating.

[0027] When the pump unit is not working, the pressure inside the suction chamber is normal, and the water pressure in the inlet channel is insufficient to open the pressure regulating component to keep the inlet channel disconnected from the suction chamber. This allows the pressure regulating component to control the water flow of the heating module itself, preventing the heating module from accumulating water and producing scale when it is not working, thus ensuring the heating efficiency of the heating module. Attached Figure Description

[0028] Figure 1 This is a three-dimensional structural diagram of the heating module in one embodiment of the present invention;

[0029] Figure 2 This is an exploded structural diagram of the heating module in one embodiment of the present invention;

[0030] Figure 3 This is a cross-sectional view of the integrated base and the pump unit in one embodiment of the present invention.

[0031] Figure 4 yes Figure 3 Enlarged structural diagram at point C;

[0032] Figure 5 This is a three-dimensional structural schematic diagram of the pressure regulating component in one embodiment of the present invention;

[0033] Figure 6 This is a three-dimensional structural diagram of the integrated base in one embodiment of the present invention;

[0034] Figure 7 This is a top view of the integrated base in one embodiment of the present invention;

[0035] Figure 8 yes Figure 7 A schematic diagram of the cross-sectional structure shown along section line AA;

[0036] Figure 9 yes Figure 7 A schematic diagram of the cross-sectional structure shown along section line BB;

[0037] Figure 10 This is an exploded structural diagram of the pump unit in one embodiment of the present invention;

[0038] Figure 11 This is a schematic diagram showing the position arrangement of the second check valve in one embodiment of this utility model;

[0039] Figure 12 This is a schematic diagram showing the position arrangement of the first one-way valve in one embodiment of this utility model;

[0040] Figure 13 This is a schematic diagram of the connection structure between the driving component and the eccentric transmission component in one embodiment of the present invention. Detailed Implementation

[0041] To make the objectives, technical solutions, and advantages of this utility model clearer, the following will describe this utility model in further detail with reference to the accompanying drawings. It is hereby declared that the terms "up," "down," "left," "right," "front," "back," "inner," and "outer," etc., appearing or about to appear in this document, are based solely on the accompanying drawings and are not intended to specifically limit this utility model.

[0042] The heating module of this invention can ensure that the water flow rate input to the heating module remains relatively stable, avoid the problem of water flow fluctuation, and effectively ensure the heating efficiency of the heating module.

[0043] In one embodiment of this utility model, such as Figures 1 to 3 As shown, the heating module includes a heating element 1, a pump assembly 2, and an integrated base 3. A heating tube 11 is installed inside the heating element 1. The pump assembly 2 is located at the water inlet of the heating element 1 and forms a volumetric pump chamber 201. The pump assembly 2 and the heating element 1 are integrated and connected via the integrated base 3. The integrated base 3 forms a water inlet chamber 301 and a water outlet channel 302 that are separated from each other. The water inlet chamber 301 communicates with the volumetric pump chamber 201, and the volumetric pump chamber 201 communicates with the water inlet of the heating tube 11 via the water outlet channel 302.

[0044] The integrated base 3 has a mounting protrusion 31, and a water inlet channel 311 is formed on the outer side wall of the mounting protrusion 31. A suction cavity 312 is formed inside the mounting protrusion 31, and the suction cavity 312 is connected to the water inlet cavity 301. A pressure regulating component 32 is arranged between the water inlet channel 311 and the suction cavity 312. The pressure regulating component 32 is used to switch the water inlet channel 311 and the suction cavity 312 on and off.

[0045] In this embodiment, when the pump unit 2 is working, the volume of the pump chamber 201 of the pump unit 2 increases to create a negative pressure environment in the pump chamber 201, the water inlet chamber 301, and the suction chamber 312. Under the combined effect of the negative pressure environment in the suction chamber 312 and the water flow pressure in the water inlet channel 311, the pressure regulating component 32 is opened, connecting the suction chamber 312 and the water inlet channel 311, so that the water in the water inlet channel 311 enters the pump unit 2 and is pumped into the heating tube 11 for heating.

[0046] When pump unit 2 is not working, the internal pressure of suction chamber 312 is normal, and the water flow pressure of inlet channel 311 is insufficient to open pressure regulating component 32, so as to keep the connection between inlet channel 311 and suction chamber 312 disconnected. Thus, pressure regulating component 32 is used to control the water flow of the heating module itself, preventing the heating module from generating dirt due to water accumulation inside when it is not working, and ensuring the heating efficiency of the heating module.

[0047] In addition, the mounting protrusion 31 can also provide installation space for the pressure regulating component 32, integrating the pressure regulating component 32 into the integrated base 3, protecting the pump group 2 from the impact of water flow pressure, while improving the overall integration of the heating module and ensuring the space utilization rate of the heating module.

[0048] It should be noted that the heating element in the heating tube 11 can be disposed on the outer surface of the heating tube 11 and connected to an external power supply through a temperature control element to heat the water flow inside the heating tube 11 in real time. For example, the heating element is an electrothermal film laid on the outer surface of the heating tube 11. The electrothermal film can form a resistive layer on the outer surface of the heating tube 11. When the electrothermal film is conductive, the electrothermal film generates heat on the outer surface of the heating tube 11, and the heat is transferred to the water flow inside the heating tube 11 through the heating tube 11, thereby completing the heating effect of the water flow.

[0049] Of course, the heating element can also be an electric heating wire, which can be encapsulated on the outer wall of the heating tube 11 using a high-temperature insulating material (such as mica sheets or ceramic fibers). In other embodiments, the heating element can also be a ceramic heating element or other heating elements, which can be selected and arranged according to actual needs.

[0050] When the heating element is working and generating heat, its operating power should preferably remain stable to ensure the energy consumption of the heating element. When the water flow rate in the heating tube 11 changes, it can easily lead to overheating of the water or the water temperature failing to reach the set value. In this embodiment, the negative pressure suction of the suction chamber 312 and the water pressure between the water inlet channel 311 can be coordinated to control the opening of the pressure regulating component 32, thereby ensuring that the input water flow rate remains relatively stable, thus ensuring the heating efficiency of the heating element on the water flow and maintaining a stable water temperature.

[0051] Among them, such as Figures 3 to 5As shown, the pressure regulating component 32 includes a pressure diaphragm 321, a pressure rod 322, a sealing member 323, and an elastic member 324. The elastic member 324 and the sealing member 323 are arranged in a predetermined direction in the water inlet channel 311. A connecting hole 325 is formed between the water inlet channel 311 and the suction chamber 312. The pressure diaphragm 321 is located on the inner wall surface of the suction chamber 312 away from the connecting hole 325. The pressure head end 3221 of the pressure rod 322 faces the pressure diaphragm 321. The pressure rod end 3222 of the pressure rod 322 passes through the connecting hole 325 and contacts the sealing member 323. The sealing member 323 is adapted to block the connecting hole 325.

[0052] Understandably, when no negative pressure environment is formed in the suction chamber 312, the sealing member 323 blocks the connecting hole 325 under the elastic force of the elastic member 324, thus disconnecting the water inlet channel 311 from the suction chamber 312.

[0053] When a negative pressure environment is formed in the suction chamber 312, the pressure diaphragm 321 is subjected to negative pressure suction and undergoes elastic deformation towards the connecting hole 325, pushing the pressure rod 322 towards the water inlet channel 311. The pressure rod 322 presses the sealing member 323, which in turn compresses the elastic member 324. At this time, the sealing member 323 disengages from the connecting hole 325 under the combined pressure of the water inlet pressure of the water inlet channel 311 and the pressure of the pressure rod 322, and moves a certain distance away from the connecting hole 325, connecting the water inlet channel 311 with the suction chamber 312. This allows the negative pressure suction of the suction chamber 312 to act on the water flow in the water inlet channel 311, thereby drawing the water flow from the water inlet channel 311 into the suction chamber 312 and the water inlet chamber 301, and then inputting the water flow into the volumetric pump chamber 201 of the pump unit 2.

[0054] Therefore, by combining the negative pressure suction in the suction chamber 312 with the water pressure in the water inlet channel 311, the pressure rod 322 can be used to press the sealing member 323 to open or block the connecting hole 325, thereby controlling the connection or disconnection between the water inlet channel 311 and the suction chamber 312.

[0055] Simultaneously, by adjusting the negative pressure suction of the suction chamber 312, the pressing distance of the pressure rod 322 can be adjusted, which in turn adjusts the moving distance of the sealing part 323 in the water inlet channel 311. This allows for adjustment of the connection opening between the water inlet channel 311 and the suction chamber 312, thereby adjusting the water inlet flow rate of the heating module to ensure that the water inlet flow rate remains relatively stable.

[0056] When the water flow into the suction chamber 312 increases, causing the water pressure inside the suction chamber 312 to increase, the pressure diaphragm 321 undergoes elastic deformation in the direction away from the connecting hole 325 under the action of water pressure, and the pressure diaphragm 321 separates from the pressure rod 322; then, under the action of the rebound force of the elastic element 324, the sealing element 323 re-seals the connecting hole 325 to prevent the water flow in the suction chamber 312 from flowing back to the water inlet channel 311, and at the same time prevent the water flow in the water inlet channel 311 from continuing to enter the suction chamber 312.

[0057] It should be noted that, for example Figure 4 and Figure 5 As shown, the elastic element 324 is preferably a spring, and the sealing element 323 is a piston. A sealing cavity 313 is formed at the end of the water inlet channel 311 near the connecting hole 325. The sum of the free length of the spring and the length of the piston is greater than or equal to the length of the sealing cavity 313. This ensures that when a negative pressure environment is not formed in the suction chamber 312, the elastic element 324 can press the piston against the wall of the connecting hole 325 formed by the sealing cavity 313. Simultaneously, the diameter of the end of the piston facing the connecting hole 325 is larger than the diameter of the connecting hole 325 to ensure the sealing effect of the piston on the connecting hole 325.

[0058] Furthermore, to ensure that the pressure rod 322 does not affect the connectivity between the water inlet channel 311 and the suction chamber 312, a first distance d1 is formed between the pressure head end 3221 and the wall surface of the suction chamber 312 forming the connecting hole 325, and a second distance d2 is formed between the sealing member 323 and the wall surface of the water inlet channel 311 away from the connecting hole 325. The first distance d1 is greater than the second distance d2.

[0059] Understandably, during the process of pushing the sealing member 323 away from the connecting hole 325 using the pressure rod 322, the moving distance of the pressure rod 322 and the sealing member 323 remains consistent. Since a second gap d2 is formed between the sealing member 323 and the wall of the water inlet channel 311 away from the connecting hole 325, under the action of the elastic member 324, the moving distance of the pressure rod 322 and the sealing member 323 during opening is less than d2. Therefore, by setting d1 to be greater than d2, it can be ensured that during the process of the pressure rod 322 pressing the sealing member 323, the pressure head end 3221 of the pressure rod 322 will never contact the wall of the suction chamber 312 forming the connecting hole 325. During the process of inputting water into the heating module, the pressure head end 3221 of the pressure rod 322 will not block the connecting hole 325, effectively ensuring the connectivity between the water inlet channel 311 and the suction chamber 312, ensuring that the negative pressure suction of the suction chamber 312 can draw the water from the water inlet channel 311 into the suction chamber 312 and the volumetric pump chamber 201, further ensuring the stability of the water inlet flow of the heating module.

[0060] In this embodiment, to facilitate the installation of the pressure regulating component 32 using the mounting protrusion 31, such as Figure 1 , Figure 2 and Figure 6 As shown, the mounting protrusion 31 is detachably connected to a first mounting block 33 and a second mounting block 34. A pressure diaphragm 321 and a pressure rod 322 are arranged between the first mounting block 33 and the mounting protrusion 31. An elastic element 324 and a sealing element 323 are arranged between the second mounting block 34 and the mounting protrusion 31. When installing the pressure regulating component 32, the first mounting block 33 and the second mounting block 34 can be removed from the mounting protrusion 31. The sealing element 323 and the elastic element 324 are then sequentially assembled into the water inlet channel 311 of the mounting protrusion 31. The pressure rod 322 and the pressure diaphragm 321 are then sequentially assembled into the suction chamber 312, thus completing the installation of the pressure regulating component 32 on the mounting protrusion 31 and ensuring the integration between the pressure regulating component 32 and the mounting protrusion 31.

[0061] Preferably, such as Figure 7 As shown, the mounting protrusion 31 and the first mounting block 33 and the second mounting block 34 are all formed with dovetail grooves. The first mounting block 33 and the second mounting block 34 are embedded in the mounting protrusion 31 through the cooperation of the paired dovetail grooves, so as to realize the detachable connection between the first mounting block 33 and the mounting protrusion 31, and the detachable connection between the second mounting block 34 and the mounting protrusion 31.

[0062] Of course, the detachable connection between the first mounting block 33 and the second mounting block 34 is not limited to the detachable connection achieved by the dovetail groove. Threaded holes can also be formed in the first mounting block 33 and the second mounting block 34, and the first mounting block 33 and the second mounting block 34 can be detachably connected by threaded fasteners (such as bolts, studs or screws).

[0063] Furthermore, such as Figure 6 As shown, the first mounting block 33 has a balancing vent 331. An atmospheric cavity 332 is formed between the balancing vent 331 and the pressure diaphragm 321. The atmospheric cavity 332 is separated from the suction cavity 312 by the pressure diaphragm 321, so that the balancing vent 331 can communicate with the external atmospheric environment of the first mounting block 33. This ensures that when the pressure end 3211 of the pressure diaphragm 321 forms a negative pressure environment in the suction cavity 312, it can be recessed into the suction cavity 312 under the action of the internal and external pressure difference, thereby pushing the pressure rod 322 toward the water inlet channel 311.

[0064] Furthermore, such as Figure 4 and Figure 5As shown, the pressure diaphragm 321 has a fixed end 3212 and a pressure end 3211. The fixed end 3212 is located between the first mounting block 33 and the mounting protrusion 31. One side of the pressure end 3211 faces the suction cavity 312. The fixed end 3212 provides a fixed position for the pressure diaphragm 321, so as to ensure that the pressure end 3211 can be deformed by negative pressure and press the pressure rod 322, thereby preventing the pressure diaphragm 321 from being sucked into the suction cavity 312 and effectively ensuring the cooperation effect between the pressure diaphragm 321 and the pressure rod 322.

[0065] In this embodiment, as Figure 3 and Figure 10 As shown, the pump assembly 2 includes a pump housing 21 and a pump plug. The pump housing 21 is connected to the integrated base 3, and a drive member 22 is connected to the side of the pump housing 21 facing away from the integrated base 3. An elastic pump plug 23 is disposed inside the pump housing 21, and a volumetric pump chamber 201 is formed on the side of the elastic pump plug 23 facing the integrated base 3. An eccentric transmission member 221 is eccentrically connected to the output shaft of the drive member 22, and an eccentric column 231 is formed in the elastic pump plug 23. The eccentric transmission member 221 is connected to the eccentric column 231.

[0066] Understandably, when pump unit 2 is working, drive component 22 rotates, and the output shaft of drive component 22 drives eccentric transmission component 221 to rotate, correspondingly pulling elastic pump plug 23 to form elastic deformation, thereby increasing the volume of volumetric pump chamber 201. This creates a connected negative pressure environment in volumetric pump chamber 201, water inlet chamber 301, and suction chamber 312. When water inlet channel 311 is connected to suction chamber 312, the negative pressure suction of the negative pressure environment acts on water inlet channel 311, achieving water pressure coordination with water inlet channel 311 and controlling the opening or closing of pressure regulating component 32. Subsequently, drive component 22 drives eccentric transmission component 221 to rotate, correspondingly pulling elastic pump plug 23 to reset, thereby reducing the volume of volumetric pump chamber 201, so that the water entering volumetric pump chamber 201 can be pumped to water outlet channel 302 to supply water to heating pipe 11.

[0067] Preferably, such as Figure 10 and Figure 13 As shown, the output shaft of the drive member 22 is connected to an eccentric connecting block 222, and the rotating shaft of the eccentric transmission member 221 is inclinedly connected to the eccentric connecting block 222, so as to eccentrically arrange the output shaft of the drive member 22 and the rotation center of the eccentric transmission member 221, ensuring that the eccentric transmission member 221 can drive the elastic pump plug 23 to form elastic deformation.

[0068] The elastic pump plug 23 is preferably made of rubber material to ensure that the elastic pump plug 23 will not damage the original structure when it undergoes elastic deformation.

[0069] Furthermore, such as Figures 8 to 12As shown, the water inlet chamber 301 and the volumetric pump chamber 201 are connected unidirectionally by a first one-way valve 41; the volumetric pump chamber 201 and the water outlet channel 302 are connected unidirectionally by a second one-way valve 42; and the water outlet channel 302 and the water inlet of the heating tube 11 are connected unidirectionally by a third one-way valve 43. The first one-way valve 41 allows water to flow unidirectionally from the water inlet chamber 301 to the volumetric pump chamber 201, the second one-way valve 42 allows water to flow unidirectionally from the volumetric pump chamber 201 to the water outlet channel 302, and the third one-way valve 43 allows water to flow unidirectionally from the water outlet channel 302 to the heating tube 11. This prevents water backflow in the heating module, effectively ensuring the flow direction and transmission efficiency of water within the heating module. It also prevents the heating tube 11 from drying out or leaking from the water inlet channel 311 due to water backflow, thus ensuring the heating efficiency of the heating module for the water.

[0070] Among them, such as Figure 12 As shown, the first one-way valve 41 is preferably an umbrella valve. A valve seat 211 is formed on the side of the pump housing 21 facing the inlet chamber 301. The valve seat 211 has a through hole. The umbrella valve has a support column 411 and an umbrella-shaped valve face 412. The support column 411 is fixedly installed on the valve seat 211. The umbrella-shaped valve face 412 arches towards the volumetric pump chamber 201 so that when a negative pressure environment is formed inside the volumetric pump chamber 201, the umbrella-shaped valve face 412 can detach from the valve seat 211 under the action of negative pressure suction, thereby connecting the volumetric pump chamber 201 with the inlet chamber 301. This allows the negative pressure suction to compensate for the inlet water pressure and ensures the stability of the inlet water flow. When the volumetric pump chamber 201 pumps water outward, under the action of water pressure, the umbrella-shaped valve face 412 adheres to the valve seat 211, disconnecting the volumetric pump chamber 201 from the inlet chamber 301, thereby preventing the water flow in the volumetric pump chamber 201 from flowing back into the inlet chamber 301.

[0071] like Figure 11 As shown, the second check valve 42 is a diaphragm valve or a membrane valve. A valve groove 212 is formed on the side wall of the pump housing 21 facing the water outlet channel 302. The outlet of the volumetric pump chamber 201 is located in the valve groove 212. The second check valve 42 has an end wall 421 and an arched valve surface 422. The end wall 421 abuts against the side wall of the water outlet channel 302. The edge of the arched valve surface 422 abuts against the bottom surface of the valve groove 212. The middle part of the arched valve surface 422 arches relative to the bottom surface of the valve groove 212 to form a pressure-bearing gap. When the volumetric pump chamber 201 pumps water to the water outlet channel 302, the water flow pressure can act on the arched valve surface 422 through the pressure-bearing gap, folding the arched valve surface 422 to achieve the connection between the volumetric pump chamber 201 and the water outlet channel 302. When the water pressure exerted on the arched valve face 422 by the water flow in the outlet channel 302 is greater than the water pressure exerted on the arched valve face 422 in the pump chamber, the arched valve face 422 is pressed back onto the bottom surface of the valve groove 212, thereby blocking the backflow of water in the outlet channel 302.

[0072] like Figure 9 As shown, the third check valve 43 is a push-rod type check valve, which includes a valve housing 431 and a T-shaped valve core 432. The valve housing 431 is fixed to the outlet of the water outlet channel 302, and a guide hole 433 is formed on the side of the valve housing 431 facing the heating tube 11. The guide hole 433 is connected to the inner wall of the valve housing 431 by a reinforcing rib. The head end of the T-shaped valve core 432 faces the water outlet channel 302 and can abut against the stop step surface 434 at the end of the valve housing 431. The tail end of the T-shaped valve core 432 passes through the guide hole 433 and extends into the inlet of the heating tube 11. When the water pressure of the water flow in the water outlet channel 302 acts on the T-shaped valve core 432, the T-shaped valve core 432 slides towards the heating tube 11 inside the valve housing 431, realizing the opening of the third check valve 43 and connecting the water outlet channel 302 with the water inlet pipe. When the water pressure in the heating tube 11 is greater than the water pressure in the outlet channel 302, the T-shaped valve core 432 moves inside the valve housing 431 toward the stop step surface 434 and abuts against the stop step surface 434. By using the head end of the T-shaped valve core 432 to cooperate with the stop step surface 434, the backflow of water in the heating tube 11 is blocked.

[0073] In embodiments of this utility model, such as Figure 2 , Figure 6 and Figure 10 As shown, in order to further improve the connection stability between the integrated base 3 and the pump group 2, and between the integrated base 3 and the heating element 1, the integrated base 3 is formed with a first connecting part 35 and a second connecting part 36, the pump group 2 is formed with a first mounting part 24, and the first connecting part 35 is detachably connected to the first mounting part 24; the outer shell of the heating element 1 is formed with a second mounting part 12, and the second connecting part 36 is detachably connected to the second mounting part 12.

[0074] Specifically, the first connecting part 35 may be a through hole formed in the integrated base 3, and the first mounting part 24 may be a threaded hole formed in the pump housing 21. When connecting the pump set 2 and the integrated base 3, bolts or studs can be inserted into the through hole and the threaded hole to achieve threaded connection between the integrated base 3 and the connected pump set 2.

[0075] The second connecting part 36 is a mounting boss formed on the integrated base 3. The mounting boss protrudes outward toward the heating body 1 and has a connecting hole. The second mounting part 12 is a rib formed on the side of the heating body housing 13. The rib has a through hole and the mounting boss has an insert groove. When connecting the pump group 2 and the heating body 1, the rib can be inserted into the insert groove, and the connecting hole of the mounting boss and the through hole of the rib can be coaxial. Then, bolts or studs are passed through the connecting hole and the through hole and fixed with nuts to realize the threaded connection between the integrated base 3 and the heating body 1.

[0076] Furthermore, such as Figure 6 , Figure 8 and Figure 9As shown, the integrated base 3 also has a third connecting part 37. The outlet of the water outlet channel 302 is formed in the third connecting part 37. The inlet of the heating tube 11 is sleeved in the third connecting part 37. A sealing element 371 is arranged between the third connecting part 37 and the heating tube 11 to seal the connection between the outlet of the water outlet channel 302 and the inlet of the heating tube 11, thereby improving the sealing performance of the connection between the heating tube 11 and the integrated base 3 and preventing water from leaking between the heating tube 11 and the third connecting part 37, which would cause a short circuit in the heating element outside the heating tube 11.

[0077] Specifically, such as Figure 8 As shown, the third connecting part 37 is a protruding column structure formed on the integrated base 3, the water outlet of the water outlet channel 302 is formed inside the protruding column structure, the sealing element 371 is a sealing sleeve, the sealing sleeve is fitted on the outer wall surface of the protruding column structure, and multiple sealing strips are formed on the outer wall surface of the sealing sleeve. The sealing sleeve is sealed and connected to the inner wall surface of the heating tube 11 by multiple sealing strips.

[0078] Accordingly, this utility model also provides an instant hot water device, which includes a housing and a heating module as described in any of the above embodiments, the heating module being located inside the housing. The instant hot water device possesses all the beneficial effects of the aforementioned heating module and all the beneficial effects of the aforementioned integrated pump unit 2, which will not be elaborated further here.

[0079] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications are also considered to be within the protection scope of this utility model.

Claims

1. A heat generating module, characterized in that, include: The heating element has a heating tube installed inside; A pump assembly is located at the water inlet of the heating element, and the pump assembly forms a volumetric pump chamber. An integrated base is provided, in which the pump assembly and the heating element are integrated and connected, and the integrated base forms a water inlet chamber and a water outlet channel that are separated from each other. The water inlet chamber is connected to the volumetric pump chamber, and the volumetric pump chamber is connected to the water inlet of the heating tube through the water outlet channel. The integrated base has a mounting protrusion, the outer wall of the mounting protrusion has a water inlet channel, the interior of the mounting protrusion has a suction cavity, the suction cavity is connected to the water inlet cavity, and a pressure regulating component is arranged between the water inlet channel and the suction cavity, the pressure regulating component is used to switch the water inlet channel and the suction cavity on and off.

2. The heating module according to claim 1, characterized in that, The pressure regulating component includes a pressure diaphragm, a pressure rod, a sealing component, and an elastic component, wherein the elastic component and the sealing component are arranged in the water inlet channel along a predetermined direction; A connecting hole is formed between the water inlet channel and the suction chamber. The pressure diaphragm is located on the inner wall surface of the suction chamber away from the connecting hole. The pressure head end of the pressure rod faces the pressure diaphragm. The pressure rod end of the pressure rod passes through the connecting hole and contacts the sealing member. The sealing member is adapted to block the connecting hole.

3. The heating module according to claim 2, characterized in that, The mounting protrusion is detachably connected to a first mounting block and a second mounting block. The pressure diaphragm and the pressure rod are arranged between the first mounting block and the mounting protrusion. The elastic element and the sealing element are arranged between the second mounting block and the mounting protrusion.

4. The heating module according to claim 3, characterized in that, The first mounting block has a balancing vent, and an atmospheric cavity is formed between the balancing vent and the pressure diaphragm. The atmospheric cavity is separated from the suction cavity by the pressure diaphragm.

5. The heating module according to claim 3, characterized in that, The pressure diaphragm has an integrally formed fixed end and a pressure end. The fixed end is located between the first mounting block and the mounting protrusion, and the pressure end faces the suction cavity.

6. The heating module according to claim 1, characterized in that, The pump set includes: A pump housing is connected to the integrated base, and a drive component is connected to the side of the pump housing opposite to the integrated base; An elastic pump plug is disposed inside the pump housing, and the volumetric pump cavity is formed on the side of the elastic pump plug facing the integrated base; The output shaft of the drive unit is eccentrically connected to an eccentric transmission component, the elastic pump plug is formed with an eccentric column, and the eccentric transmission component is connected to the eccentric column.

7. The heating module according to claim 6, characterized in that, The water inlet chamber and the volumetric pump chamber are connected unidirectionally by a first one-way valve. The volumetric pump chamber and the water outlet channel are connected unidirectionally by a second one-way valve. The water outlet channel and the water inlet of the heating pipe are connected unidirectionally by a third one-way valve.

8. The heating module according to claim 1, characterized in that, The integrated base has a first connecting portion and a second connecting portion, the pump assembly has a first mounting portion, and the first connecting portion is detachably connected to the first mounting portion; the outer shell of the heating element has a second mounting portion, and the second connecting portion is detachably connected to the second mounting portion.

9. The heating module according to claim 8, characterized in that, The integrated base also has a third connecting part, the water outlet of the water outlet channel is formed in the third connecting part, the water inlet of the heating tube is sleeved in the third connecting part, and a sealing element is arranged between the third connecting part and the heating tube.

10. An instantaneous hot water device, characterized in that, It includes a housing and a heating module as described in any one of claims 1 to 9, wherein the heating module is located inside the housing.

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