Heating device and water vapor massage foot bath device

Abstract

The invention discloses a heating device and a water vapor massage foot bath device, belongs to the field of health care, and aims to solve the problem that an existing foot bath device cannot effectively heat flowing water vapor. The heating device comprises an inner shell, an outer shell and an electric heating ring, the inner shell is provided with a fluid channel, the outer shell surrounds the periphery of the inner shell, and the electric heating ring is arranged on the outer shell; the electric heating ring is located between the inner shell and the outer shell, and a wiring end is led out from the outer shell. When water vapor flows through the fluid channel, power is supplied to the electric heating ring, the electric heating ring generates heat and transmits the heat to the inner shell, and the inner shell heats the flowing water vapor to a proper temperature. The structure is compact, and the heating efficiency is high. The inner shell is configured to comprise a flat part in the middle and connecting pipes at the two ends of the flat part, and the interior of the flat part is a fluid channel connected with the connecting pipes. The contact area of the electric heating ring and the inner shell is increased, and the heat transfer effect is improved.

Description

Technical Field

[0001] The invention relates to the field of health care, and in particular to a heating device and a water vapor massage foot bath. Background Art

[0002] Existing foot baths provide a static sauna for the feet by diffusing warm water vapor in the foot bath cavity and wrapping the user's feet. The warm water vapor is also pressurized and sprayed to form a fluid beam, which impacts the feet to produce massage stimulation. The fluid beam is heated to a suitable temperature during the transportation process to avoid being too hot or too cold. Therefore, effective heating of the flowing water vapor is a requirement of this foot bath. Summary of the invention

[0003] The purpose of the present invention is to provide a heating device and a water vapor massage foot bath, which are used to heat the flowing water vapor to a suitable temperature and enhance the user's good foot bathing experience.

[0004] To achieve the above purpose, the heating device of the present invention comprises: an inner shell, an outer shell and an electric heating coil, the inner shell has a fluid channel, the outer shell surrounds the outer periphery of the inner shell, the electric heating coil is located between the inner shell and the outer shell and leads the terminal out from the outer shell.

[0005] According to this, when water vapor flows through the fluid channel, power is supplied to the electric heating coil, so that the electric heating coil generates heat and transmits it to the inner shell, and the inner shell heats the flowing water vapor to a suitable temperature. It has a compact structure and high heating efficiency.

[0006] Preferably, the inner shell is a good thermal conductor, and the electric heating coil is wound around the outer wall of the inner shell to increase the heat transfer efficiency.

[0007] Preferably, the inner shell includes a flat portion in the middle and connecting pipes at both ends of the flat portion, and the inside of the flat portion is a fluid channel connected to the connecting pipe, thereby increasing the contact area between the electric heating coil and the inner shell and improving the heat transfer effect.

[0008] Preferably, the fluid channel is a slit defined by the solid part, and the extension direction of the slit is consistent with the extension direction of the flat part. Accordingly, the flow diameter of the fluid channel is reduced, and the surface area of ​​the fluid channel is increased, so that the water vapor flowing through the fluid channel can contact the surface of the fluid channel as much as possible and be fully heated. The solid part can store more heat, so when the water vapor flows through, it can provide enough heat to heat the water vapor, so that it will not be cooled rapidly.

[0009] The water vapor massage foot bath of the present invention comprises:

[0010] Foot bath cavity;

[0011] A massage assembly, comprising a plurality of massage nozzles protruding from the foot bath cavity, the massage nozzles being provided with spray holes;

[0012] A heating atomizing assembly for heating atomized water;

[0013] The water vapor pressurizing component is used to pressurize the water vapor generated by the heating atomizing component and deliver it to the massage nozzle. It includes a steam pump, a delivery pipe, and a first heating device arranged in the delivery pipe path. The first heating device is the heating device of the present invention, and the inner shell is connected in series in the delivery pipe path. The heating device of the present invention is used to heat the flowing water vapor to a suitable temperature in the foot bath, thereby improving the user's good foot bathing experience.

[0014] Preferably, the water vapor pressurizing component includes a first one-way valve, a control valve and a storage tank, the first one-way valve and the control valve are successively connected to the delivery pipe path between the steam pump and the first heating device, the storage tank is connected to the delivery pipe path between the first one-way valve and the control valve, and the first one-way valve controls the water vapor to flow from the steam pump to the control valve. Accordingly, the control valve can be closed first, and the water vapor can be filled into the storage tank. After the air pressure in the storage tank reaches the required pressure, the control valve can be opened to allow the high-pressure water vapor to flow to the massage nozzle, thereby avoiding insufficient water vapor pressure ejected from the ejection hole.

[0015] Preferably, the water vapor pressurizing component further includes a fan and a second one-way valve, which are connected to the delivery pipe path between the control valve and the first heating device, and the second one-way valve controls the airflow generated by the fan to flow to the first heating device. Accordingly, closing the control valve and turning on the fan can generate airflow to dry the water vapor path downstream of the fan. At the same time, starting the first heating device to heat the airflow can achieve higher drying efficiency and better effect.

[0016] Preferably, the heating atomization assembly includes a heating atomization water tank, a second heating device and an ultrasonic atomizer, the second heating device and the ultrasonic atomizer are arranged at the bottom of the heating atomization water tank, and a suction port is provided on the side wall of the heating atomization water tank, and the suction port is connected to the steam pump of the water vapor pressurizing assembly. After adding water to the heating atomization water tank, the second heating device and the ultrasonic atomizer are submerged in water to atomize and heat the water into water vapor.

[0017] Preferably, a cover is provided above the heating atomization water tank, and a diffusion cavity located above the heating atomization water tank is formed between the cover and the heating atomization water tank. The diffusion cavity provides space for heating atomization to ensure the efficiency of heating atomization.

[0018] Preferably, a water vapor channel connecting the foot bath cavity and the diffusion cavity is provided on the cover shell to allow water vapor to flow between the foot bath cavity and the diffusion cavity.

[0019] The present invention configures the heating device to include an inner shell, an outer shell and an electric heating coil. The inner shell has a fluid channel, the outer shell surrounds the outer periphery of the inner shell, and the electric heating coil is located between the inner shell and the outer shell and leads the terminal from the outer shell. When water vapor flows through the fluid channel, power is supplied to the electric heating coil, so that the electric heating coil generates heat and transmits it to the inner shell, and the inner shell heats the water vapor flowing through to a suitable temperature. It has a compact structure and high heating efficiency.

[0020] The present invention configures the inner shell to include a flat portion in the middle and connecting pipes at both ends of the flat portion, and the inside of the flat portion is a fluid channel connected to the connecting pipe, thereby increasing the contact area between the electric heating coil and the inner shell and improving the heat transfer effect.

[0021] The present invention defines a fluid channel as a slit defined by a solid part, and the extension direction of the slit is consistent with the extension direction of the flat part. Accordingly, the flow diameter of the fluid channel is reduced, and the surface area of ​​the fluid channel is increased, so that the water vapor flowing through the fluid channel can contact the surface of the fluid channel as much as possible and be fully heated. The solid part can store more heat, so when the water vapor flows through, it can provide enough heat to heat the water vapor, and it will not be cooled rapidly. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the structural decomposition of the foot bath of the present invention;

[0023] Figure 2 It is a schematic diagram of the water vapor pressurizing assembly of the present invention;

[0024] Figure 3 for Figure 2 Another schematic diagram of the water vapor pressurization assembly shown;

[0025] Figure 4 It is a schematic diagram of the structural decomposition of the heating device of the present invention;

[0026] Figure 5 is a cross-sectional schematic diagram of the inner shell of the heating device of the present invention;

[0027] Figure 6 is a cross-sectional schematic diagram of a heating device of the present invention;

[0028] Figure 7 It is a schematic diagram of the positional relationship between the massage nozzle and the water vapor dispersion channel of the present invention;

[0029] Figure 8 It is a schematic diagram of the cross-section structure of the water vapor dispersion plate of the present invention;

[0030] Fig. 9 It is a schematic diagram of the structure decomposition of the massage nozzle of the present invention;

[0031] Fig.10 is a cross-sectional view of the headstock of the present invention;

[0032] Fig.11 The figure is a schematic diagram of the assembly relationship between the tubular shaft and the sleeve of the present invention; the reference numerals in the figure are as follows:

[0033] 100 Massage Components:

[0034] 120 installation disk,

[0035] 130 massage nozzle, 131 head base, 1311 spray hole, 1312 water vapor chamber, 1313 key shaft section, 132 tubular shaft, 1321 lower shaft section, 1322 rotating retaining ring, 1323 upper shaft section, 1324 sealing ring;

[0036] 140 water vapor dispersion plate, 141 first dispersion channel, 142 second dispersion channel, 143 input interface, 144 installation interface, 145 shaft sleeve,

[0037] 150 driven gear, 151 square hole,

[0038] 200 heating atomization assembly: 210 heating atomization water tank, 211 suction port, 220 second heating device, 230 ultrasonic atomizer, 240 cover, 241 water vapor channel;

[0039] 300 water vapor pressurizing component: 310 steam pump, 320 delivery pipe, 330 first one-way valve, 340 storage tank, 350 control valve, 360 first heating device, 361 inner shell, 3611 flat part, 3612 connecting pipe, 3613 fluid channel, 3614 solid part, 362 outer shell, 363 electric heating coil, 364 first temperature sensor, 365 second temperature sensor, 366 terminal, 370 second one-way valve, 380 fan, 390 inlet pipe;

[0040] 400 controller, 401 power line, 402 wire;

[0041] 500 upper housing: 501 mouth, 502 insertion port, 503 control screen;

[0042] 610 positioning plate, 620 separation plate;

[0043] 700 lower housing;

[0044] 800 water bottles. DETAILED DESCRIPTION

[0045] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution in the embodiment of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiment of the present invention. Obviously, the described embodiment is a part of the embodiment of the present invention, not all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0046] The terms "including" and "having" and any variations thereof in the specification and claims of the present invention are intended to cover non-exclusive inclusions. For example, a method or product comprising a series of technical features is not necessarily limited to those technical features clearly listed, but may also include other technical features that are not clearly listed and can be included in the method or product.

[0047] In the description of the present invention, it is necessary to understand that the technical features defined by the terms "first", "second" and the like with sequential concepts are only for the purpose of clearly describing the defined technical features so that the defined technical features can be clearly distinguished from other technical features, but do not represent such naming in actual implementation, and therefore cannot be understood as a limitation of the present invention.

[0048] The present invention is described in detail below in conjunction with specific embodiments and accompanying drawings.

[0049] Figure 1 A footbath is shown, which includes: an upper shell 500, a lower shell 700, a footbath cavity, a massage component 100, a heating atomization component 200, a water vapor pressurization component 300 and a controller 400.

[0050] The foot bath cavity is defined between the upper shell 500 and the massage assembly 100, and the upper shell 500 has an opening 501 for the foot to enter and exit the foot bath cavity. The upper shell 500 also has an insertion port 502 for inserting a water bottle 800 to add water to the heated atomizing water tank 210. The upper shell 500 is also equipped with a control screen 503 for displaying the working status of the foot bath and controlling the foot bath.

[0051] like Figure 1 As shown, the massage assembly 100 includes a plurality of massage nozzles 130 with spray holes 1311. The massage nozzles 130 are distributed on the upper side of the mounting plate 120 and protrude from the foot bath cavity. Each massage nozzle is connected to the water vapor dispersion channel on the lower side of the mounting plate 120 through a tubular shaft.

[0052] The lower side of the mounting plate 120 is provided with Figure 7-8The water vapor dispersion plate 140 shown. The water vapor dispersion plate 140 is a plate-shaped component on which water vapor dispersion channels are distributed. The water vapor dispersion channels are used to disperse the delivered water vapor so as to evenly distribute it to each massage nozzle. In the illustrated structure, grooves of corresponding shapes are arranged on the water vapor dispersion plate, and then the grooves are covered with a cover plate to form the water vapor dispersion channels. In other embodiments, the grooves can be arranged on the cover plate, and the cover plate can be assembled on the water vapor dispersion plate to form the water vapor dispersion channels. Figure 8 In the figure, the water vapor dispersion plate 140 is cut by two planes passing through the first dispersion channel 141 and the input interface 143 and perpendicular to the water vapor dispersion plate 140, so as to clearly show the position and structure of the input interface 143 and the installation interface 144. A plurality of installation interfaces 144 are distributed along the first dispersion channel 141 and the second dispersion channel 142. Each installation interface is fixed with Fig.11 The shaft sleeve 145 shown in the figure. The shaft sleeve 145 is fixed to the mounting interface 144 by threads, which is convenient for assembly and for sealing the shaft sleeve and the mounting interface.

[0053] The water vapor is delivered to the water vapor dispersion channel through the input interface 143, and the water vapor is then distributed to each massage nozzle 130. The multiple massage nozzles 130 are symmetrically distributed in two rows to form two areas parallel to each other, each area is used to massage a foot to increase comfort. In addition, the massage component 100 is located on the positioning plate 610 for positioning and installation.

[0054] like Fig. 9 As shown, the massage nozzle 130 includes Fig.10 The header 131 and Fig.11 The tubular shaft 132 shown in the figure, the head seat 131 is provided with a water vapor chamber 1312 and a plurality of spray holes 1311 for spraying water vapor outward from the water vapor chamber, the upper end of the tubular shaft 132 is sealed and inserted together with the head seat 131 and communicates with the spray holes 1311 through the water vapor chamber 1312. The lower end of the tubular shaft 132 extends into the water vapor dispersion flow channel for receiving water vapor from the water vapor dispersion flow channel. Accordingly, each spray hole can spray water vapor with a consistent force. In addition, the upper end of the tubular shaft is sealed with the head seat, and the lower end of the tubular shaft is sealed with the water vapor dispersion plate. This sealing is achieved by sleeve-mounting a sealing ring at the corresponding part of the tubular shaft, ensuring that the massage nozzle rotates flexibly without leaking water vapor. The head seat 131 has a key shaft section 1313, which is in the shape of a square shaft, and the driven gear 150 is sleeved on the key shaft section 1313 through the square hole 151. This ensures that the driven gear drives the massage nozzle.

[0055] An installation space is maintained between the installation disk 120 and the water vapor dispersion plate 140, and the installation space and the water vapor dispersion channel are isolated from each other to prevent the water vapor in the water vapor dispersion channel from entering the installation space and causing adverse effects on structures in the installation space such as gears. A plurality of massage nozzles 130 are rotatably distributed on the upper side of the installation disk 120 and are respectively connected to the water vapor dispersion channel. Therefore, the installation disk serves as an assembly base for the massage nozzles and bears the pressure from the massage nozzles and the feet during foot bathing.

[0056] Specifically, the tubular shaft 132 is sealed and rotatably assembled with the shaft sleeve 145 in a one-to-one correspondence. Fig.11 As shown, the tubular shaft 132 is inserted into the sleeve 145 and extends a lower shaft section 1321 below the sleeve. The lower shaft section is sleeved with at least one rotating retaining ring 1322, which is equivalent to a sealing ring. The rotating retaining ring not only constrains the tubular shaft to the sleeve, but also plays a sealing role to prevent water vapor from leaking from the rotating gap between the tubular shaft and the sleeve. In particular, the rotating retaining ring is sleeved on the lower shaft section instead of being squeezed between the inner wall of the tubular shaft and the sleeve. When the tubular shaft rotates relative to the sleeve, the resistance generated by the rotating retaining ring is small, thereby ensuring the flexibility of the tubular shaft rotation. When there are multiple rotating retaining rings, the sealing life can be increased. The tubular shaft 132 also extends an upper shaft section 1323 above the sleeve. The upper shaft section is sleeved with at least one sealing ring 1324, which is squeezed between the upper shaft section 1323 and the head seat 131. Thus, the sealing between the tubular shaft and the head seat is ensured.

[0057] A plurality of driven gears 150 are located in the installation space and are configured one by one with the massage nozzles 130 to rotate with the massage nozzles. Fig. 9 As shown, the driven gear 150 is driven and assembled with the upper shaft section 1323 and the head base 131. The structure shown in the figure is that the upper shaft section 1323 and the head base 131 are both provided with a key shaft section 1313, and the driven gear 150 is provided with a square hole 151, which is sleeved on the key shaft section 1313 of the upper shaft section 1323 and the head base 131 to rotate the entire massage nozzle to prevent the tubular shaft and the head from rotating relative to each other. The driven gear is rotated by the driving gear, and the driving gear is driven by the motor.

[0058] The heating atomization assembly 200 is used to heat the atomized water. It includes a heating atomization water tank 210, a second heating device 220 and an ultrasonic atomizer 230. The second heating device 220 and the ultrasonic atomizer 230 are arranged at the bottom of the heating atomization water tank 210. After adding water to the heating atomization water tank, the second heating device and the ultrasonic atomizer are submerged in water and used to atomize the water and heat it into water vapor. A cover 240 is provided above the heating atomization water tank 210, and the cover 240 and the heating atomization water tank 210 define a diffusion cavity. Accordingly, the water stored in the heating atomization water tank can be heated and atomized, and the diffusion cavity provides space for heating atomization to ensure the efficiency of heating atomization. The cover defines the diffusion cavity. The cover 240 protrudes from the foot bath cavity, and the heating atomizing water tank 210 is located at the lower side of the separation plate 620. The separation plate 620 and the positioning plate 610 are provided with an opening corresponding to the heating atomizing water tank, and the opening connects the heating atomizing water tank with the dispersion chamber, so as to promote efficient heating atomization. The side wall of the dispersion chamber has an intake port 211 and a water vapor channel 241. The intake port 211 is preferably located on the side wall of the heating atomizing water tank 210, so as not to be submerged in water. The intake port 211 is connected to the steam pump 310 of the water vapor pressurizing component 300. The water vapor channel 241 is provided in the cover 240. At any stage during operation, when the pressure of the dispersion chamber is less than the pressure of the foot bath chamber, the water vapor channel supplies the water vapor in the foot bath chamber to flow back to the dispersion chamber. When the pressure of the foot bath chamber is less than the pressure of the dispersion chamber, the water vapor in the dispersion chamber will escape to the foot bath chamber through the water vapor channel.

[0059] The water vapor pressurizing component 300 is used to pressurize the water vapor generated by the heating atomizing component 200 and deliver it to the massage nozzle. Figure 2 , Figure 3 As shown, the water vapor pressurizing assembly 300 includes a steam pump 310, a delivery pipe 320, a first one-way valve 330 arranged in the delivery pipe path, a storage tank 340, a control valve 350, a first heating device 360, a second one-way valve 370, and a fan 380.

[0060] The storage tank 340 is connected to the delivery pipe path between the first check valve 330 and the control valve 350. The first check valve 330 controls the water vapor to flow from the steam pump to the control valve 350, that is, the first check valve 330 prevents the water vapor from flowing to the steam pump. Accordingly, the control valve 350 can be closed first, and the water vapor can be filled into the storage tank 340. After the air pressure in the storage tank 340 reaches the required pressure, the control valve 350 can be opened to allow the water vapor to flow to the massage nozzle 130 at a certain pressure, thereby avoiding insufficient pressure of the water vapor ejected from the ejection hole.

[0061] When the water vapor generated by the heating atomization component 200 is less or / and the power of the booster pump is insufficient, the water vapor pressurization component 300 cannot continuously spray out a high-speed water vapor flow. While a general booster pump such as an airbag air pump can continuously inflate, it cannot achieve high-pressure air delivery. If the booster pump is forced to deliver air at high pressure, it will cause an extremely serious suction feeling above the foot bath cavity and increase the working noise of the booster pump. Therefore, using a storage tank to accumulate and store water vapor and assist in pressurization, and intermittently releasing water vapor, it can ensure that the water vapor pressurization component 300 can continuously spray out a high-speed water vapor flow with a lower working noise. In view of the role of the storage tank, the storage tank is preferably made of an elastic material so that the storage tank behaves as an elastic bag.

[0062] The first heating device 360 ​​is used to heat the fluid flowing through. Figure 6 The device shown includes an inner shell 361, an outer shell 362 and an electric heating coil 363. The inner shell (361) is connected in series in the path of the delivery pipe 320 through its fluid channel 3613. The outer shell 362 surrounds the outer periphery of the inner shell 361, and is used to shield the heat of the electric heating coil, prevent the heat generated by the electric heating coil from being dissipated outward, and improve the utilization rate of heat. The electric heating coil 363 is located between the inner shell 361 and the outer shell 362, and a terminal 366 is led out from the outer shell (362). The electric heating coil 363 is connected to the controller 400 via a wire 402 connected to the terminal 366.

[0063] like Figure 4 As shown, the electric heating coil 363 is wound around the outer wall of the inner shell 361, and the inner shell is a good conductor of heat, such as aluminum alloy or copper. Therefore, the heat generated by the electric heating coil can be quickly transferred to the inner shell, and then the inner shell heats the water vapor flowing through.

[0064] like Figure 5-6 As shown, the inner shell 361 includes a flat portion 3611 in the middle and connecting pipes 3612 at both ends of the flat portion, and the inside of the flat portion 3611 is a fluid channel connected to the connecting pipe. Accordingly, the contact area between the electric heating coil and the inner shell is increased, and the heat transfer effect is increased. Furthermore, the fluid channel 3613 is a slit defined by the solid portion 3614, and the extension direction of the slit is consistent with the extension direction of the flat portion. Accordingly, the flow diameter of the fluid channel is reduced, and the surface area of ​​the fluid channel is increased, so that the water vapor flowing through the fluid channel contacts the surface of the fluid channel as much as possible and is fully heated. The solid portion can store more heat, so when the water vapor flows through, it can provide enough heat to heat the water vapor, so that it will not be cooled rapidly.

[0065] The electric heating coil is also called the electric heating coil or the heating coil. It uses an electric heating alloy wire as the heating material, and a thin metal tube is wrapped around the electric heating alloy wire. According to the working mode, the electric heating coil can be a resistance heating coil, which uses the Joule effect of the current to convert electrical energy into thermal energy to heat the object. It can also be an induction heating coil, which uses the thermal effect formed by the induced current (eddy current) generated by the conductor in the alternating electromagnetic field to heat the conductor itself.

[0066] In order to control the temperature of water vapor, a first temperature sensor 364 is configured in the first heating device 360, and a second temperature sensor 365 is configured at the outlet end of the first heating device 360; the controller 400 controls the first heating device to heat or stop heating according to the temperature signal collected by the first temperature sensor and / or the second temperature sensor, that is, the electric heating coil is powered to control the heating of the first heating device, and the electric heating coil is stopped to control the first heating device to stop heating.

[0067] Specifically, the first temperature sensor 364 is located between the outer shell 362 and the inner shell 361, and is used to collect the temperature of the electric heating coil and indirectly obtain the water vapor temperature data. The second temperature sensor 365 directly obtains the water vapor temperature data. Based on this, the water vapor temperature can be controlled within a suitable temperature range to increase the good foot bathing experience.

[0068] The controller (circuit control board) is fixed to the lower side of the partition plate 620 and shielded by the lower shell 700, and is isolated from the foot bath cavity by the positioning plate 610 and the partition plate 620. The controller is electrically connected to the control screen 503 and the electrical components of the foot bath such as the steam pump 310, the first one-way valve 330, the control valve 350, the first heating device 360, the electric heating coil 363, the first temperature sensor 364, the second temperature sensor 365, the second one-way valve 370, the fan 380, etc. The controller is connected to an external power supply through a power line 401 to supply power to the entire foot bath cavity.

[0069] The fan 380 and the second one-way valve 370 are connected to the delivery pipe path between the control valve 350 and the first heating device 360. The second one-way valve 370 controls the airflow generated by the fan 380 to flow to the first heating device 360, preventing the fluid from flowing to the fan 380, thereby preventing the water vapor from flowing to the fan when conveying water vapor. Accordingly, closing the control valve 350 and turning on the fan 380 can generate airflow to dry the water vapor path downstream of the fan 380, while starting the first heating device 360 ​​to heat the airflow, resulting in higher drying efficiency and better effect.

[0070] The steam pump has an inlet pipe 390, which is connected to the suction port 211 of the heating atomizing assembly 200. One end of the delivery pipe 320 is connected to the outlet of the steam pump 310, and the other end is connected to the input interface of the water vapor dispersion channel. During foot bathing, the steam pump 310 absorbs water vapor from the heating atomizing water tank 210 through the inlet pipe 390 and the suction port 211 and pressurizes the water vapor. After the water vapor flows through the first one-way valve 330, the control valve 350, and the first heating device 360, it enters the water vapor dispersion channel from the input interface and is distributed to each massage nozzle.

[0071] Among them, the positioning plate 610 and the separation plate 620 allow the foot bath cavity to maintain a relatively sealed space, and under the action of the water vapor pressurizing component 300, the water vapor circulates between the heating atomizing water tank 210, the water vapor pressurizing component 300, the water vapor dispersion channel, the massage nozzle 130, the foot bath cavity, and the diffusion cavity.

[0072] The water vapor pressurizing assembly 300 is fixed to the lower side of the partition plate 620 and is shielded by the lower shell 700 , and is isolated from the foot bath cavity by the positioning plate 610 and the partition plate 620 .

[0073] According to the massage assembly of the above structure, warm water vapor is delivered to each massage nozzle through the water vapor dispersion channel, and the warm water vapor is ejected from the massage nozzle to stimulate and massage the foot. The power and transmission mechanism drive each massage nozzle to rotate, which can further enhance the foot bathing experience.

[0074] When the above-mentioned foot bath is in operation, the second heating device 220, the ultrasonic atomizer 230, and the water vapor pressurizing component 300 are started by operating the control screen 503. The water vapor is heated and then sprayed out from the spray hole 1311 of the massage nozzle 130. By placing the foot on the corresponding massage nozzle, a stimulating massage by the water vapor spray can be obtained.

Claims

1. A heating device characterized by include: An inner shell (361), an outer shell (362) and an electric heating coil (363), wherein the inner shell (361) has a fluid channel, the outer shell (362) surrounds the outer shell (361), and the electric heating coil (363) is located between the inner shell (361) and the outer shell (362) and leads a terminal (366) from the outer shell (362).

2. The heating device according to claim 1, characterized in that: The inner shell (361) is a good heat conductor, and the electric heating coil (636) is wound around the outer wall of the inner shell (361).

3. The heating device according to claim 2, characterized in that: The inner shell (361) comprises a flat portion (3611) in the middle and connecting pipes (3612) at both ends of the flat portion, and the inside of the flat portion (3611) is a fluid channel connected to the connecting pipe.

4. The heating device according to claim 3, characterized in that: the fluid The channel (3613) is a slit defined by the solid portion (3614), and the extension direction of the slit is consistent with the extension direction of the flat portion (3611).

5. Steam massage foot bath, characterized by include: Foot bath cavity; A massage assembly (100) comprising a plurality of massage nozzles (130) protruding from the foot bath cavity, wherein the massage nozzles are provided with spray holes (1311); A heating atomizing assembly (200) for heating atomized water; The water vapor pressurizing component (300) is used to pressurize the water vapor generated by the heating atomizing component and deliver it to the massage nozzle, and comprises a steam pump (310), a delivery pipe (320) and a first heating device (360) arranged in the delivery pipe path, wherein the first heating device (360) is a heating device as described in any one of claims 1 to 4, and the inner shell (361) is connected in series in the delivery pipe (320) path.

6. The foot bath according to claim 5, characterized in that: The water vapor pressurizing component (300) comprises a first one-way valve (330), a control valve (350) and a storage tank (340). The first one-way valve (330) and the control valve (350) are successively connected to the delivery pipe path between the steam pump (310) and the first heating device (360). The storage tank (340) is connected to the delivery pipe path between the first one-way valve (330) and the control valve (350). The first one-way valve (330) controls the flow of water vapor from the steam pump to the control valve (350).

7. The foot bath according to claim 5 or 6, characterized in that: The water vapor pressurizing component (300) further includes a fan (380) and a second one-way valve (370), wherein the fan (380) and the second one-way valve (370) are connected in a delivery pipe path between the control valve (350) and the first heating device (360), and the second one-way valve (370) controls the airflow generated by the fan (380) to flow toward the first heating device (360).

8. The foot bath according to claim 5, characterized in that: The heating atomizing assembly (200) comprises a heating atomizing water tank (210), a second heating device (220) and an ultrasonic atomizer (230). The second heating device (220) and the ultrasonic atomizer (230) are arranged at the bottom of the heating atomizing water tank (210). A suction port (211) is provided on the side wall of the heating atomizing water tank (210). The suction port (211) is connected to a steam pump (310) of a water vapor pressurizing assembly (300).

9. The foot bath according to claim 8, characterized in that: A cover shell (240) is disposed above the heating atomizing water tank (210), and a diffusion chamber located above the heating atomizing water tank is formed between the cover shell (240) and the heating atomizing water tank (210).

10. The foot bath according to claim 9, characterized in that: The cover shell (240) is provided with a water vapor channel (241) communicating with the foot bath cavity and the diffusion cavity.

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