Semiconductor micro electrothermal film heater and use method thereof

Abstract

The invention relates to the technical field of electrothermal film heaters, and provides a semiconductor micro electrothermal film heater and a using method thereof.The semiconductor micro electrothermal film heater comprises a barrel body, an electrothermal film glass plate is fixed in the barrel body, a base plate is arranged above the electrothermal film glass plate, and a flow dividing cover is arranged below the electrothermal film glass plate. External air is pumped into the lower clamping cavity through a pipeline and blown into the heat preservation cover through a first guide hole in the bottom of the lower clamping cavity, the vertical section of the heat preservation cover is oval, the bottom of the heat preservation cover gradually protrudes towards the inner pipe body, and then heat storage particles on the lower layer in the heat preservation cover are blown to move under the action of airflow; the heat storage particles on the bottom layer roll along the bottom wall of the heat preservation cover and then fall back to the upper layer area under the action of gravity through the arch wall at the edge of the heat preservation cover, heat of air in the heat preservation cover can be fully absorbed through circulating rolling of the heat storage particles on the bottom layer and the upper layer, and meanwhile initial air entering the heat preservation cover can fully absorb heat.

Description

Technical Field

[0001] The present invention relates to the technical field of electric heating film heaters, and in particular to a semiconductor micro-electric heating film heater and a use method thereof. Background Art

[0002] The electric heating film glass plate is an electric heating element formed by spraying the electric heating film liquid onto a high temperature resistant insulating carrier (glass plate) under high temperature conditions. Its structure mainly includes: a glass substrate and a semiconductor electric heating film sprayed on the middle of the glass substrate. The two sides of the semiconductor electric heating film are respectively connected to corresponding electrodes. When in use, the electrodes are connected to an external power supply through a corresponding electric controller. The biggest advantages of the electric heating film glass plate are: fast heating efficiency, low energy consumption, environmental protection and energy saving, low cost, and long service life.

[0003] After searching, the announcement number CN117100134B discloses a foot bathing device provided with an electric heating film heater and a method of using the same, wherein the foot bathing device comprises a foot bathing bucket body, the foot bathing bucket body is divided into an upper foot bathing area and a lower functional area, the lower functional area is divided into a water heating area and a hot air drying area; the electric heating film heater comprises an electric heating film glass plate sealed and fixedly connected between a partition plate and an isolation plate, the upper fixing device of the isolation plate is provided with a circulating water pump; a multifunctional heat storage mechanism comprises a heat-conducting limit cover fixedly arranged around the periphery of the semiconductor electric heating film, a first mounting plate and a second mounting plate are sealed and installed between both sides of the isolation plate and the glass substrate, a plurality of corresponding damping particles are filled and installed in the space formed by the first mounting plate, the second mounting plate and the heat-conducting limit cover, and a corresponding exhaust fan is fixedly connected to the outer side of the second mounting plate.

[0004] However, the above technology still has the following problems: the above technology divides the foot bath bucket body into an upper foot bathing area and a lower functional area through a partition plate, and then divides the lower functional area into a water heating area and a hot air drying area through an isolation plate, and then the electric heating film glass plate of the electric heating film heater is arranged between the partition plate and the isolation plate, and the water in the heating area is heated by the electric heating film heater, and then the water in the foot bathing area and the heating area is continuously circulated by a circulating water pump. Due to the temperature difference between the foot bathing area and the heating area, the outlet end of the circulating water pump is on one side, resulting in the water temperature near the outlet end of the circulating water pump being significantly higher than that on the other side, resulting in poor comfort of foot bathing. Summary of the invention

[0005] The present invention provides a semiconductor micro-electric heating film heater and a use method thereof, which solves the problem of temperature difference between a foot soaking area and a heating area in the prior art.

[0006] The technical scheme of the present invention is as follows: a semiconductor micro-electrothermal film heater comprises a barrel body, an electrothermal film glass plate is fixed in the barrel body, a pad is arranged above the electrothermal film glass plate, a diverter cover is arranged below the electrothermal film glass plate, a foot-soaking area is formed in the barrel body above the pad, a heating area is formed in the barrel body between the pad and the electrothermal film glass plate, a drying area is formed in the barrel body below the diverter cover, an electrothermal film heater is arranged on the bottom surface of the electrothermal film glass plate, a heat preservation cover surrounding the electrothermal film heater is fixed to the bottom surface of the electrothermal film glass plate, heat storage particles are contained in the heat preservation cover, An outer tube body that penetrates the electric heating film glass plate and the electric heating film heater is fixed at the center position of the electric heating film glass plate, an inner tube body that leads to the inner cavity of the diverter hood is fixed on the inner side of the bottom of the outer tube body, an air inlet is provided on one side of the barrel body, an air pump is fixed inside the side of the barrel body close to the air inlet, the output end of the air pump is connected with the outer tube body through a pipeline, a circulation hole that communicates with the inner cavity of the heat storage particles and an aeration hole that passes the hot air in the heat storage particles into the heating zone are opened on the outer tube body, and an inverter for closing the aeration hole and passing the hot air in the heat storage particles into the diverter hood through the inner tube body is provided in the outer tube body.

[0007] Preferably, the vertical cross-section of the heat-insulating cover is elliptical, and the bottom of the heat-insulating cover gradually bulges toward the inner tube body.

[0008] Preferably, a diaphragm sleeved on the outer tube body is fixed inside the outer tube body, and the diaphragm separates the cavity between the outer tube body and the inner tube body into an upper clamping cavity and a lower clamping cavity.

[0009] Preferably, the circulation hole includes a first guide hole and a second guide hole, the first guide hole is located at the bottom of the outer tube body and is distributed in an axial ring around the inner tube body, the first guide hole enables the lower clamping cavity to communicate with the inner cavity of the thermal insulation cover, the air outlet end of the output pipeline of the air pump is located between the partition and the first guide hole, the second guide hole is located above the partition and is distributed radially around the inner tube body, and enables the inner cavity of the thermal insulation cover to communicate with the upper clamping cavity.

[0010] Preferably, the inverter includes a conduit, an air plug is fixed to the outside of the conduit, the upper part of the air plug is cylindrical, and an annular groove is provided on the cylindrical surface, a first electromagnet and a second electromagnet are provided in the annular groove, the first electromagnet is fixed to the inner wall of the outer tube body, the second electromagnet is fixed to the bottom wall of the annular groove, and the first electromagnet and the second electromagnet are elastically connected by a spring.

[0011] Preferably, the lower half of the air plug is conical, and an airway is provided on the conical surface of the air plug and the catheter, and the airway enables the upper clamp cavity to communicate with the inner cavity of the catheter.

[0012] Preferably, a conical bayonet is provided on the inner side of the top of the conduit, and a ball plug capable of floating under the pressure of airflow is provided above the conical bayonet, the top end of the conduit extends out of the air plug and a third guide hole is provided in the extended part.

[0013] Preferably, the diameter of the tapered bayonet gradually decreases from top to bottom, and the diameter of the ball plug is larger than the bottom diameter of the tapered bayonet and smaller than the diameter of the third guide hole.

[0014] Preferably, limiting protrusions for supporting the pad are fixed on both sides of the barrel body, and the pad and the bottom of the diverter cover are both provided with a plurality of through holes.

[0015] Based on the above invention content, the present invention also proposes a method for using a heater, comprising the following steps: Step 1: Pour water into the foot bathing area and heating area of ​​the barrel; Step 2: The electric heating film heater works. The heat generated on the upper surface of the electric heating film heater is transferred to the heating zone through the electric heating film glass plate to heat the water in the heating zone. The heat generated on the lower surface of the electric heating film heater is dissipated in the heat preservation cover and absorbed by the heat storage particles in the heat preservation cover. Step 3: The air pump works to pump external air into the outer tube through the pipeline, blows the heat storage particles in the heat preservation cover through the circulation holes on the outer tube, and allows the hot air to pass into the heating area through the aeration holes to aerate the water in the heating area; Step 4: Put your feet into the foot soaking area, and make the hot water churn in the heating area and the foot soaking area through continuous aeration in the heating area, so as to balance the water temperature in the heating area and the foot soaking area. After the foot soaking is completed, take the feet out of the foot soaking area and place them in the drying area at the bottom of the barrel; Step 5: The inverter works to close the aeration holes so that the hot air in the insulation cover no longer flows into the heating area. At the same time, the hot air passes through the inner tube body into the diversion cover and is blown to the drying area from the diversion cover. The flow of hot air causes the moisture on the feet to evaporate quickly.

[0016] The beneficial effects of the present invention are: In the present invention, the air pump is operated to pump the external air into the lower clamping cavity through the pipeline, and blown into the heat preservation cover through the first guide hole at the bottom of the lower clamping cavity. Since the vertical cross-section of the heat preservation cover is elliptical, the bottom of the heat preservation cover gradually bulges toward the inner tube body, and then the heat storage particles at the bottom layer inside the heat preservation cover are blown under the action of the airflow, so that the heat storage particles at the bottom layer roll along the bottom wall of the heat preservation cover, and then fall back to the upper layer area through the arch wall at the edge of the heat preservation cover under the action of gravity. Through the cyclic rolling of the bottom layer and the upper layer of the heat storage particles, the heat of the air in the heat preservation cover can be fully absorbed, and at the same time, the initial air entering the heat preservation cover can fully absorb heat; In the present invention, the hot air after absorbing heat in the heat preservation cover enters the upper clamping cavity through the second guide hole, enters the conduit through the airway at the bottom of the air plug, lifts the ball plug, enters the outer tube body through the third guide hole on the conduit, and finally enters the heating zone through the aeration hole on the outer tube body, aerating the water in the heating zone. The hot water is churned in the heating zone and the foot soaking zone by continuous aeration in the heating zone, thereby balancing the water temperatures in the heating zone and the foot soaking zone. After foot soaking is completed, the hot water is taken out from the foot soaking zone and placed in the drying zone at the bottom of the barrel. Compared with the prior art, the pad in the present invention adopts a hollow design, and the mixing of water in the heating zone and the foot soaking zone is achieved by aeration. In the present invention, in the drying state, the inverter works to drive the air plug to move upward in the outer tube body, and then the air plug closes the aeration hole, so that the hot air in the insulation cover no longer enters the heating area, and at the same time, the conical surface at the bottom of the air plug is separated from the top of the inner tube body, and the hot air enters the diverter cover through the inner tube body, and is blown to the drying area from the through hole at the bottom of the diverter cover. The water on the feet is quickly evaporated by the flow of hot air. Compared with the prior art, the hollow design at the bottom of the diverter cover in the present invention is conducive to and fully dissipating the heat stored in the heat storage particles in the drying area, thereby achieving rapid drying. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0018] Figure 1 A schematic diagram of the structure of a semiconductor micro-electric heating film heater proposed by the present invention; Figure 2 A schematic diagram of the cross-sectional structure of a semiconductor micro-electric heating film heater proposed by the present invention; Figure 3 This is a schematic diagram of the half-section structure of the outer tube body, converter and inner tube body proposed in the present invention; Figure 4 This is a schematic diagram of the half-section structure of the outer tube body and the inner tube body proposed by the present invention; Figure 5 This is a schematic diagram of the converter structure proposed by the present invention; Figure 6 A schematic diagram of a half-section structure of the converter proposed by the present invention; In the figure: 1. barrel body; 2. electrothermal film glass plate; 3. pad; 4. diverter cover; 5. electrothermal film heater; 6. thermal insulation cover; 7. heat storage particles; 8. outer tube body; 81. aeration hole; 82. first guide hole; 83. second guide hole; 84. spacer; 9. inverter; 91. conduit; 92. air plug; 93. first electromagnet; 94. second electromagnet; 95. spring; 96. airway; 97. ball plug; 98. third guide hole; 10. inner tube body; 11. air inlet; 12. limit bump; 13. air pump. DETAILED DESCRIPTION

[0019] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of 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.

[0020] See also Figure 1 and Figure 2 The present invention provides a technical solution: a semiconductor micro-electrothermal film heater, comprising a barrel body 1, an electrothermal film glass plate 2 is fixed in the barrel body 1, a pad 3 is arranged above the electrothermal film glass plate 2, a diverter cover 4 is arranged below the electrothermal film glass plate 2, a foot soaking area is formed in the barrel body 1 above the pad 3, a heating area is formed in the barrel body 1 between the pad 3 and the electrothermal film glass plate 2, a drying area is formed in the barrel body 1 below the diverter cover 4, an electrothermal film heater 5 is arranged on the bottom surface of the electrothermal film glass plate 2, a heat preservation cover 6 surrounding the electrothermal film heater 5 is fixed to the bottom surface of the electrothermal film glass plate 2, heat storage particles 7 are installed in the heat preservation cover 6, and the electrothermal film glass plate An outer tube body 8 that penetrates the electric heating film glass plate 2 and the electric heating film heater 5 is fixed at the center position of 2, an inner tube body 10 that leads to the inner cavity of the diverter hood 4 is fixed on the inner side of the bottom of the outer tube body 8, an air inlet 11 is provided on one side of the barrel body 1, an air pump 13 is fixed inside the side of the barrel body 1 close to the air inlet 11, and the output end of the air pump 13 is communicated with the outer tube body 8 through a pipeline, a circulation hole that communicates with the inner cavity of the heat storage particle 7 and an aeration hole 81 that passes the hot air in the heat storage particle 7 into the heating zone are opened on the outer tube body 8, and an inverter 9 for closing the aeration hole 81 and passing the hot air in the heat storage particle 7 into the diverter hood 4 through the inner tube body 10 is arranged in the outer tube body 8.

[0021] Based on the above embodiment, the present invention further proposes a method for using a heater, comprising the following steps: Step 1: inject water into the foot bathing area and the heating area of ​​the barrel 1; Step 2: The electric heating film heater 5 works. The heat generated on the upper surface of the electric heating film heater 5 is transferred to the heating zone through the electric heating film glass plate 2 to heat the water in the heating zone. The heat generated on the lower surface of the electric heating film heater 5 is dissipated in the heat preservation cover 6 and absorbed by the heat storage particles 7 in the heat preservation cover 6. Step 3: The air pump 13 works to pump external air into the outer tube body 8 through the pipeline, blows the heat storage particles 7 in the heat preservation cover 6 through the circulation holes on the outer tube body 8, and allows the hot air to pass into the heating zone through the aeration holes 81 to aerate the water in the heating zone; Step 4, put the feet into the foot soaking area, and make the hot water churn in the heating area and the foot soaking area through continuous aeration in the heating area, so as to make the water temperature in the heating area and the foot soaking area balanced. After the foot soaking is completed, take the feet out of the foot soaking area and place them in the drying area at the bottom of the barrel 1; Step five, the inverter 9 works to close the aeration hole 81, so that the hot air in the heat preservation cover 6 no longer flows into the heating area, and at the same time the hot air passes through the inner tube body 10 into the diverter cover 4, and is blown from the diverter cover 4 to the drying area, and the moisture on the feet is quickly evaporated by the flow of hot air.

[0022] In a preferred embodiment, see Figure 3 and Figure 4 A diaphragm 84 sleeved on the outside of the inner tube body 10 is fixed in the outer tube body 8, and the diaphragm 84 separates the cavity between the outer tube body 8 and the inner tube body 10 to form an upper clamping cavity and a lower clamping cavity, and the circulation hole includes a first guide hole 82 and a second guide hole 83, the first guide hole 82 is located at the bottom of the outer tube body 8 and is distributed in an axial ring around the inner tube body 10, and the first guide hole 82 makes the lower clamping cavity communicate with the inner cavity of the heat preservation cover 6, and the air outlet end of the output pipeline of the air pump 13 is located between the diaphragm 84 and the first guide hole 82, and the second guide hole 83 is located above the diaphragm 84 and is distributed radially around the inner tube body 10, and makes the inner cavity of the heat preservation cover 6 communicate with the upper clamping cavity. When the air pump 13 works, the external air is pumped into the lower clamping cavity through the pipeline, and is blown into the heat preservation cover 6 through the first guide hole 82 at the bottom of the lower clamping cavity. Figure 2 As shown, since the vertical cross-section of the thermal insulation cover 6 is elliptical, the bottom of the thermal insulation cover 6 gradually bulges toward the inner tube body 10, and then the lower heat storage particles 7 inside the thermal insulation cover 6 are blown under the action of the airflow, so that the heat storage particles 7 at the bottom layer roll along the bottom wall of the thermal insulation cover 6, and then fall back to the upper area through the arch wall at the edge of the thermal insulation cover 6 under the action of gravity. Through the cyclic rolling of the bottom and upper layers of the heat storage particles 7, the heat of the air in the thermal insulation cover 6 can be fully absorbed, and at the same time, the initial air entering the thermal insulation cover 6 can fully absorb heat, and the hot air after heat absorption enters the upper clamping cavity through the second guide hole 83.

[0023] In a preferred embodiment, see Figure 5 and Figure 6The converter 9 includes a conduit 91, an air plug 92 is fixed to the outside of the conduit 91, the upper part of the air plug 92 is cylindrical, and an annular groove is provided on the cylindrical surface, a first electromagnet 93 and a second electromagnet 94 are provided in the annular groove, the first electromagnet 93 is fixed on the inner wall of the outer tube body 8, and the second electromagnet 94 is fixed on the bottom wall of the annular groove, the first electromagnet 93 and the second electromagnet 94 are elastically connected by a spring 95, the lower part of the air plug 92 is conical, and an airway 96 is provided on the conical surface of the air plug 92 and the conduit 91, and the airway 96 communicates the upper clamp cavity with the inner cavity of the conduit 91. A conical bayonet is provided on the inner side of the top of the conduit 91, and a ball plug 97 that can float under the pressure of the airflow is provided above the conical bayonet. The top of the conduit 91 extends out of the air plug 92, and the extended part is provided with a third guide hole 98. The air introduced into the upper clamping cavity enters the conduit 91 through the air channel 96 at the bottom of the air plug 92, then lifts the ball plug 97, enters the outer tube body 8 through the third guide hole 98 on the conduit 91, and finally enters the heating zone through the aeration hole 81 on the outer tube body 8 to aerate the water in the heating zone.

[0024] It should be noted that the diameter of the tapered bayonet gradually decreases from top to bottom, and the diameter of the ball plug 97 is larger than the bottom diameter of the tapered bayonet and smaller than the diameter of the third guide hole 98, so that the ball plug 97 is limited in the conduit 91 and can only float in a limited area above the tapered bayonet. After the inverter 9 closes the aeration hole 81, the automatic sedimentation of the ball plug 97 prevents water from entering the conduit 91, thereby playing a role of preventing backflow.

[0025] Furthermore, limiting protrusions 12 supporting the pad 3 are fixed on both sides of the barrel body 1. The pad 3 can be removed to facilitate cleaning of the foot bathing area and the heating area of ​​the barrel body 1. The bottom of the pad 3 and the diversion cover 4 are provided with a plurality of through holes for dispersing hot water and hot air.

[0026] The working principle and use process of the present invention are as follows: in the foot-soaking state, the electric heating film heater 5 works, and the heat generated on the upper surface of the electric heating film heater 5 is transferred to the heating zone through the electric heating film glass plate 2 to heat the water in the heating zone. The heat generated on the lower surface of the electric heating film heater 5 is dissipated in the thermal insulation cover 6 and absorbed by the heat storage particles 7 in the thermal insulation cover 6. The air pump 13 works to pump the external air into the lower clamping cavity through the pipeline, and blows it into the thermal insulation cover 6 through the first guide hole 82 at the bottom of the lower clamping cavity. Since the vertical cross-section of the thermal insulation cover 6 is elliptical, the bottom of the thermal insulation cover 6 gradually bulges toward the inner tube body 10, and then the lower layer of heat storage particles 7 inside the thermal insulation cover 6 are blown under the action of the airflow, so that the heat storage particles 7 at the bottom roll along the bottom wall of the thermal insulation cover 6, and then pass through the edge of the thermal insulation cover 6. The arch wall at the position falls back to the upper area under the action of gravity. Through the circulation and rolling of the bottom layer and the upper layer of the heat storage particles 7, the heat of the air in the heat preservation cover 6 can be fully absorbed, and at the same time, the initial air entering the heat preservation cover 6 can fully absorb heat. The hot air after absorbing heat enters the upper clamping cavity through the second guide hole 83, enters the conduit 91 through the air channel 96 at the bottom of the air plug 92, and then lifts the ball plug 97, enters the outer tube body 8 through the third guide hole 98 on the conduit 91, and finally enters the heating zone through the aeration hole 81 on the outer tube body 8, aerating the water in the heating zone. Through continuous aeration in the heating zone, the hot water is churned in the heating zone and the foot-soaking zone, thereby making the water temperature in the heating zone and the foot-soaking zone balanced. After the foot-soaking is completed, it is taken out from the foot-soaking zone and placed in the drying zone at the bottom of the barrel body 1; In the drying state, the inverter 9 works mainly by energizing the first electromagnet 93 and the second electromagnet 94. The magnetic force generated by the two can overcome the elastic force of the spring 95, so that the air plug 92 moves upward in the outer tube body 8, and then the aeration hole 81 is closed by the air plug 92, so that the hot air in the insulation cover 6 no longer enters the heating zone. At the same time, the conical surface at the bottom of the air plug 92 is separated from the top of the inner tube body 10, and the hot air enters the diverter cover 4 through the inner tube body 10, and is blown to the drying zone from the through hole at the bottom of the diverter cover 4, and the moisture on the feet is quickly evaporated by the flow of hot air.

[0027] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A semiconductor micro-electrothermal film heater, comprising a barrel (1), an electrothermal film glass plate (2) being fixed in the barrel (1), a pad (3) being arranged above the electrothermal film glass plate (2), a flow divider (4) being arranged below the electrothermal film glass plate (2), a foot-soaking area being formed in the barrel (1) above the pad (3), a heating area being formed in the barrel (1) between the pad (3) and the electrothermal film glass plate (2), a drying area being formed in the barrel (1) below the flow divider (4), and an electrothermal film heater (5) being arranged on the bottom surface of the electrothermal film glass plate (2). It is characterized in that A heat preservation cover (6) surrounding the electric heating film heater (5) is fixed to the bottom surface of the electric heating film glass plate (2), and heat storage particles (7) are installed in the heat preservation cover (6). An outer tube body (8) penetrating the electric heating film glass plate (2) and the electric heating film heater (5) is fixed at the center of the electric heating film glass plate (2), and an inner tube body (10) leading to the inner cavity of the diversion cover (4) is fixed to the inner side of the bottom of the outer tube body (8). An air inlet (11) is provided on one side of the barrel body (1), and the barrel body (1) is close to the outer tube body (8). An air pump (13) is fixed inside one side of the air inlet (11); the output end of the air pump (13) is connected to the outer tube body (8) through a pipeline; the outer tube body (8) is provided with a circulation hole that communicates with the inner cavity of the heat storage particle (7) and an aeration hole (81) for passing the hot air in the heat storage particle (7) into the heating zone; the outer tube body (8) is provided with a flow converter (9) for closing the aeration hole (81) and passing the hot air in the heat storage particle (7) into the splitter cover (4) through the inner tube body (10).

2. A semiconductor micro-electric film heater according to claim 1, It is characterized in that The vertical cross-section of the heat-insulating cover (6) is elliptical, and the bottom of the heat-insulating cover (6) gradually rises toward the inner tube body (10).

3. A semiconductor micro-electric heating film heater according to claim 1, It is characterized in that A spacer (84) sleeved on the outside of the inner tube body (10) is fixed inside the outer tube body (8), and the spacer (84) separates the cavity between the outer tube body (8) and the inner tube body (10) into an upper clamping cavity and a lower clamping cavity.

4. A semiconductor micro-electric film heater according to claim 3, It is characterized in that The circulation hole comprises a first guide hole (82) and a second guide hole (83); the first guide hole (82) is located at the bottom of the outer tube body (8) and is distributed in an axial ring around the inner tube body (10); the first guide hole (82) enables the lower clamping cavity to communicate with the inner cavity of the heat preservation cover (6); the air outlet end of the output pipeline of the air pump (13) is located between the partition (84) and the first guide hole (82); the second guide hole (83) is located above the partition (84) and is distributed radially around the inner tube body (10), and enables the inner cavity of the heat preservation cover (6) to communicate with the upper clamping cavity.

5. A semiconductor micro-electric film heater according to claim 4, It is characterized in that The inverter (9) comprises a conduit (91), an air plug (92) is fixed on the outside of the conduit (91), the upper half of the air plug (92) is cylindrical, and an annular groove is provided on the cylindrical surface, a first electromagnet (93) and a second electromagnet (94) are provided in the annular groove, the first electromagnet (93) is fixed on the inner wall of the outer tube body (8), the second electromagnet (94) is fixed on the bottom wall of the annular groove, and the first electromagnet (93) and the second electromagnet (94) are elastically connected via a spring (95).

6. A semiconductor micro-electric heating film heater according to claim 5, It is characterized in that The lower half of the air plug (92) is conical, and an air channel (96) is provided on the conical surface of the air plug (92) and the catheter (91), wherein the air channel (96) enables the upper clamp cavity to communicate with the inner cavity of the catheter (91).

7. A semiconductor micro-electric film heater according to claim 6, It is characterized in that A conical bayonet is provided on the inner side of the top of the conduit (91), and a ball plug (97) capable of floating under the pressure of airflow is provided above the conical bayonet. The top end of the conduit (91) extends out of the air plug (92) and a third guide hole (98) is provided on the extended portion.

8. A semiconductor micro-electric film heater according to claim 7, It is characterized in that The diameter of the tapered bayonet gradually decreases from top to bottom, and the diameter of the ball plug (97) is larger than the bottom diameter of the tapered bayonet and smaller than the diameter of the third guide hole (98).

9. The semiconductor micro-electric film heater according to claim 1, It is characterized in that Limiting protrusions (12) supporting the backing plate (3) are fixed on both sides of the barrel body (1), and the bottoms of the backing plate (3) and the diverter cover (4) are both provided with a plurality of through holes.

10. A method for using a heater, according to the semiconductor micro-electric heating film heater according to claim 1, It is characterized in that The following steps are involved: Step 1: injecting water into the foot bathing area and the heating area of ​​the barrel (1); Step 2: The electric heating film heater (5) is operated, and the heat generated on the upper surface of the electric heating film heater (5) is transferred to the heating zone through the electric heating film glass plate (2) to heat the water in the heating zone, and the heat generated on the lower surface of the electric heating film heater (5) is dissipated in the heat preservation cover (6) and absorbed by the heat storage particles (7) in the heat preservation cover (6); Step three, the air pump (13) operates to pump external air into the outer tube body (8) through the pipeline, blows the heat storage particles (7) in the heat preservation cover (6) through the circulation holes on the outer tube body (8), and allows the hot air to pass into the heating zone through the aeration holes (81), thereby aerating the water in the heating zone; Step 4, placing both feet in the foot soaking area, and causing the hot water to swirl in the heating area and the foot soaking area through continuous aeration in the heating area, thereby balancing the water temperature in the heating area and the foot soaking area. After the foot soaking is completed, the feet are taken out of the foot soaking area and placed in the drying area at the bottom of the barrel (1); Step 5: The inverter (9) operates to close the aeration hole (81), so that the hot air in the heat preservation cover (6) no longer flows into the heating zone. At the same time, the hot air passes through the inner tube (10) into the diverter cover (4), and is blown from the diverter cover (4) to the drying zone. The water on the feet evaporates quickly due to the flow of the hot air.

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