A heating seat ring and a preparation method thereof, and a smart cover plate

Abstract

The application discloses a heating seat ring and a preparation method thereof and an intelligent cover plate. The heating seat ring comprises a seat ring upper shell, a heating film and a seat ring lower shell. The seat ring upper shell is provided with a cavity surrounded by a side plate. The cavity is provided with an upper opening and a side opening. The film body of the heating film is provided with a protruding part. The protruding part extends into the cavity through the side opening. The side opening is provided with a sealing plate for sealing the side opening. A temperature fuse is arranged in the cavity and is in close contact with the protruding part. The protruding part of the heating film is arranged in the cavity. The temperature fuse is arranged after injection molding. Since the protruding part of the heating film is in communication with the heating wire of the whole heating film, the temperature fuse can effectively sense the heating temperature of the heating film in the seat ring. The application can avoid the temperature fuse from being fused due to high temperature of secondary injection molding, can effectively sense the temperature of the heating film, can ensure that the heating film is intact and not damaged during injection molding, and avoids safety hazards.

Description

Technical Field

[0001] This invention relates to the field of toilet technology, and in particular to a heated toilet seat ring and its manufacturing method, and an intelligent toilet seat. Background Technology

[0002] Existing heating rings based on secondary injection molding generally use a secondary injection molding process to sandwich heating elements such as heating wires and heating films in the middle to form a whole. The appearance is simple and beautiful, and there are no defects such as overflow slag and large weld seams caused by welding processes.

[0003] For safety reasons, heating devices must be equipped with thermal fuses to prevent burns or even fires caused by abnormally high temperatures in the seat ring. However, since the heating device in a secondary injection molded seat ring is sandwiched in the middle during the secondary injection molding process, the temperature reaches about 200°C during injection molding, while the melting point of the thermal fuse is about 70°C. Therefore, the thermal fuse can only be installed after the secondary injection molding is completed, and the thermal fuse must be close to the heating wire to accurately sense the temperature. However, installing the thermal fuse presents several challenges: 1. If placed alongside the heating wire, it will obviously melt during injection molding; 2. If the thermal fuse is installed after injection molding, it cannot be directly attached to the heating wire because the heating wire is exposed outside the housing. During secondary injection molding, it cannot be effectively sealed, leading to glue overflow. This is especially problematic when the heating element uses a heating film, which needs to be exposed. Although the mold can support the heating film during secondary injection, the opening is not completely sealed. The heating film in the gaps needs to withstand significant injection pressure, which can cause the heating film to rupture and the internal heating wire to break, posing a safety hazard; 3. If the thermal fuse senses the temperature of the heating element by transmitting temperature from the plastic part after secondary injection molding, there will be a significant error, also posing a safety hazard. In other words, the entire heating element is encapsulated in a secondary injection molded shell, with only two wires connected to the power supply. While this can solve the problem of glue leakage during secondary injection molding, the thermal fuse can only be placed close to the surface of the plastic shell, indirectly sensing the heating temperature of the heating element. This may cause the internal temperature of the heating element to be too high, while the transmitted temperature may not reach the melting limit, creating a danger that could result in burns or even worse. Summary of the Invention

[0004] This invention aims to at least partially solve one of the aforementioned technical problems in related technologies. To this end, this invention proposes a heated seat ring that solves the problem of effectively installing the temperature fuse in a secondary injection molding seat ring. This not only prevents the temperature fuse from melting due to the high temperature of the secondary injection molding, but also effectively senses the temperature of the heating film, ensuring that the heating film remains intact during injection molding, thus improving safety.

[0005] To achieve the above objectives, the technical solution of the present invention is as follows:

[0006] The present invention also proposes an intelligent cover plate having the above-mentioned heated seat ring.

[0007] The present invention also proposes a method for preparing the above-mentioned heated seat ring.

[0008] According to a first aspect of the present invention, a heated seat ring includes an upper seat ring housing, a heating film, and a lower seat ring housing. The upper and lower seat ring housings are integrally formed and connected. The heating film is sandwiched between the upper and lower seat ring housings and is attached to the upper seat ring housing. The upper seat ring housing has a cavity surrounded by side plates. The cavity has an upper opening and a side opening. The side plates are integrally formed with the upper seat ring housing. The heating film has a protrusion that extends into the cavity through the side opening. A sealing plate is provided on the side opening to seal it. The bottom of the sealing plate is in close contact with the heating film. A thermal fuse is provided in the cavity and is in close contact with the protrusion. The thermal fuse is electrically connected to the power supply circuit of the heating film.

[0009] The heated seat ring according to embodiments of the present invention has at least the following beneficial effects:

[0010] 1. In this invention, the protruding part of the heating film is first attached to the cavity before the secondary injection molding, and then the sealing plate is installed to ensure that the bottom of the sealing plate is tightly attached to the heating film, avoiding the problem of glue leakage and overflow during the secondary injection molding. In this way, after the secondary injection molding is completed, the sealing plate, the upper shell of the seat ring, and the lower shell of the seat ring form a whole and form an independent cavity. The protruding part of the heating film is built into the cavity. After the injection molding is completed, the temperature fuse is installed so that the temperature fuse is tightly attached to the protruding part. Since the protruding part of the heating film is connected to the heating wire of the entire heating film, the temperature fuse can effectively sense the heating temperature of the heating film inside the seat ring, improving safety.

[0011] 2. This invention ensures the integrity of the seat ring's appearance. Due to the secondary injection molding process, there are no issues with dimensional mismatch between the upper and lower shells, nor are there defects such as welding slag, uneven welds, or roughness. It also solves the problem of effectively installing the thermal fuse, preventing it from melting due to the high temperatures of secondary injection molding, effectively sensing the temperature of the heating film, and ensuring the heating film remains intact during injection molding, thus avoiding safety hazards. Furthermore, other electrical components can be added within the cavity without requiring high-temperature resistant materials, effectively saving costs. The structure is simple, easy to implement, and highly effective.

[0012] According to some embodiments of the present invention, a PCB board is provided inside the cavity, and the thermal fuse is electrically connected to the PCB board.

[0013] According to some embodiments of the present invention, an integrated wiring harness is also included, the integrated wiring harness including a first power line, a second power line and a first fixing clip, one end of the first power line being electrically connected to the heating film, and the other end passing through the first fixing clip and being electrically connected to the PCB board, one end of the second power line passing through the side wall of the upper housing of the seat ring and exiting the upper housing of the seat ring, and the other end passing through the first fixing clip and being electrically connected to the PCB board, the first fixing clip being fixedly mounted at the side opening.

[0014] According to some embodiments of the present invention, a horizontal first slot is formed on the surface of the housing of the seat ring, the first slot is located at the side opening, and a vertical second slot is formed on the side plates on both sides of the side opening. The first slot and one of the second slots are connected to form an L-shaped slot. The first fixing clip has a first protruding edge on its four edges. The first fixing clip is fastened to the L-shaped slot through the first protruding edge. The sealing plate has a second protruding edge on both sides, and a notch is cut on the sealing plate. The size of the notch matches the first fixing clip. A third slot is formed on the side wall of the notch. The sealing plate is fastened to the second slot through the second protruding edge to close the side opening. At the same time, the third slot is engaged with the first protruding edge.

[0015] According to some embodiments of the present invention, the second protruding edge has a stepped structure that is larger at the top and smaller at the bottom, and correspondingly, the second slot has a stepped structure that is deeper at the top and shallower at the bottom, and the second protruding edge cooperates with the second slot.

[0016] According to some embodiments of the present invention, a patch is affixed at the junction of the sealing plate and the protrusion to seal the gap between the bottom of the sealing plate and the protrusion.

[0017] According to some embodiments of the present invention, a temperature probe is provided inside the cavity, the temperature probe is in close contact with the protrusion, and the temperature probe is electrically connected to the PCB board.

[0018] According to some embodiments of the invention, a cover is also included, which covers the upper opening.

[0019] According to some embodiments of the present invention, a partition is provided inside the cavity, the partition enclosing an independent space inside the cavity, and screw mounting holes are provided in the space.

[0020] According to some embodiments of the present invention, the PCB board is provided with LED beads, the LED beads are electrically connected to the temperature probe, and the cover has a through hole through which the LED beads pass.

[0021] According to some embodiments of the present invention, the LED bead is covered with a waterproof sleeve.

[0022] A smart cover according to a second aspect of the present invention includes the heated seat ring.

[0023] A method for preparing a heating seat ring according to a third aspect embodiment of the present invention is applicable to the production of the heating seat ring. The preparation method employs a two-stage injection molding process and includes the following steps:

[0024] S1: The upper housing of the seat ring is produced by injection molding, the heating film is attached to the upper housing of the seat ring, and the protrusion is attached to the cavity;

[0025] S2: Install the sealing plate at the side opening to close the side opening, and the bottom of the sealing plate is in close contact with the heating film;

[0026] S3: The upper shell of the seat ring with the heating film installed is subjected to secondary injection molding to process the lower shell of the seat ring. After the secondary injection molding is completed, the upper shell of the seat ring, the heating film and the lower shell of the seat ring are an integral structure.

[0027] S4: After the secondary injection molding is completed, install the temperature fuse in the cavity and make the temperature fuse fit tightly against the protrusion, and connect the circuit.

[0028] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0029] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0030] Figure 1 This is an exploded view of the heating seat ring of the present invention;

[0031] Figure 2 This is a partial top view of the heating seat ring of the present invention;

[0032] Figure 3 This is a schematic diagram of the installation of the sealing plate and the first fixing wire clip of the present invention;

[0033] Figure 4 This is a schematic diagram of the cover and PCB board of the present invention.

[0034] Reference numerals: Upper housing of seat ring 100, side plate 110, second slot 111, cavity 120, wire groove 130, first slot 140, partition 150, screw mounting hole 151, heating film 200, protrusion 210, lower housing of seat ring 300, sealing plate 400, second protruding edge 410, third slot 420, thermal fuse 500, PCB board 600, LED bead 610, waterproof sleeve 611, integrated wire harness 700, first power cord 710, second power cord 720, first fixing wire clip 730, first protruding edge 731, second fixing wire clip 740, temperature probe 800, cover 900, buckle 910, patch 1000. Detailed Implementation

[0035] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0036] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0037] Reference Figure 1-4A heated toilet seat includes an upper housing 100, a heating film 200, and a lower housing 300. The upper housing 100 and the lower housing 300 are integrally formed and connected. The heating film 200 is sandwiched between the upper housing 100 and the lower housing 300 and is attached to the upper housing 100. The upper housing 100 has a cavity 120 surrounded by side plates 110. The cavity 120 is located at the rear edge of the upper housing 100, near the toilet seat pivot, and has an upper opening. The side opening is located on the front side of the cavity 120. The side plate 110 is integrally formed with the upper shell 100 of the seat ring. The heating film 200 has a protrusion 210 that extends into the cavity 120 through the side opening. A sealing plate 400 is provided on the side opening to seal it. The bottom of the sealing plate 400 is in close contact with the heating film 200. A temperature fuse 500 is provided inside the cavity 120, which is in close contact with the protrusion 210 and is electrically connected to the power supply circuit of the heating film 200. The heating film 200 is a sheet-like heating film 200 with a very thin thickness of approximately 0.3 mm, which can effectively save space in the height of the seat ring. The sealing plate 400 is used to seal the cavity 120, effectively preventing glue overflow and leakage during secondary injection molding.

[0038] In this invention, before secondary injection molding, the protruding part 210 of the heating film 200 is first attached to the cavity 120, and then the sealing plate 400 is installed to ensure that the bottom of the sealing plate 400 is tightly attached to the heating film 200, thus avoiding the problem of glue leakage and overflow during secondary injection molding. After secondary injection molding, the sealing plate 400, the upper housing 100 of the seat ring, and the lower housing 300 of the seat ring form an integral whole and form an independent cavity 120. The protruding part 210 of the heating film 200 is built into the cavity 120. At this time, the temperature fuse 500 is installed so that the temperature fuse 500 is tightly attached to the protruding part 210. Since the protruding part 210 of the heating film 200 is connected to the heating wire of the entire heating film 200, the temperature fuse 500 can effectively sense the heating temperature of the heating film 200 inside the seat ring, thus improving safety.

[0039] In some embodiments of the present invention, a PCB board 600 is provided inside the cavity 120, and a thermal fuse 500 is electrically connected to the PCB board 600. A control circuit is designed on the PCB board 600, and the thermal fuse 500 is soldered on the PCB board 600 to protect the circuit of the heating film 200, providing high-temperature protection, and melting and cutting off the circuit when the temperature exceeds a certain set temperature.

[0040] In some embodiments of the present invention, an integrated wiring harness 700 is also included. The integrated wiring harness 700 includes a first power cord 710, a second power cord 720, and a first fixing clip 730. One end of the first power cord 710 is electrically connected to the heating film 200, and the other end passes through the first fixing clip 730 and is electrically connected to the PCB board 600. One end of the second power cord 720 passes through the side wall of the upper housing 100 of the seat ring, and the other end passes through the first fixing clip 730 and is electrically connected to the PCB board 600. The first fixing clip 730 is fixedly installed at the side opening. A second fixing clip 740 is provided at one end of the second power cord 720. A wire groove 130 is opened on the edge of the upper housing 100 of the seat ring. Before secondary injection molding, the integrated wiring harness 700 is installed, and the second fixing clip 740 is installed in the wire groove 130. The wire groove 130 is sealed with glue to fix and prevent detachment, ensuring the pull-out force of the second power cord 720. The first power cable 710 and the second power cable 720 are integrated onto the first fixing clip 730 for easy sealing. The first power cable 710 and the second power cable 720 can be soldered to the PCB board 600 or connected via terminals.

[0041] In some embodiments of the present invention, reference is made to... Figure 3 The surface of the housing 100 of the seat ring has a horizontal first slot 140 located at the side opening. The side plates 110 on both sides of the side opening have vertical second slots 111. The first slot 140 and one of the second slots 111 are connected to form an L-shaped slot. The first fixing clip 730 has a first protruding edge 731 around its perimeter. The first fixing clip 730 is fastened to the L-shaped slot through the first protruding edge 731. The sealing plate 400 has a second protruding edge 410 on both sides. The sealing plate 400 has a notch cut on it. The size of the notch matches the first fixing clip 730. A third slot 420 is opened on the side wall of the notch. The sealing plate 400 is fastened to the second slot 111 through the second protruding edge 410 to close the side opening. At the same time, the third slot 420 is engaged with the first protruding edge 731. The first slot 140, the second slot 111, the first protruding edge 731, the second protruding edge 410, and other structures are all designed to increase the overall sealing performance and effectively prevent glue overflow and leakage.

[0042] In some embodiments of the present invention, the second protruding edge 410 has a stepped structure that is larger at the top and smaller at the bottom. Correspondingly, the second slot 111 has a stepped structure that is deeper at the top and shallower at the bottom. The second protruding edge 410 and the second slot 111 cooperate with each other. The stepped structure serves as a limiting function to prevent the heating wire of the heating film 200 under the sealing plate 400 from being broken by the top pressure of the mold during the pressing of the sealing plate 400.

[0043] In some embodiments of the present invention, a patch 1000 is affixed to the junction of the sealing plate 400 and the protrusion 210 to seal the gap between the bottom of the sealing plate 400 and the protrusion 210. The patch 1000 can be made of iron sheet, cloth sheet, etc., and its purpose is to strengthen the sealing effect at the junction of the sealing plate 400 and the heating film 200, so that the sealing plate 400 fits tightly with the housing 100 of the seat ring, effectively preventing the problem of glue leakage and overflow during secondary injection molding.

[0044] In some embodiments of the present invention, a temperature probe 800 is provided inside the cavity 120. The temperature probe 800 is in close contact with the protrusion 210 and is electrically connected to the PCB board 600. The temperature probe 800 is an NTC temperature probe 800, and its connecting wire can be connected to the PCB board 600 through terminals or by soldering. Since the protrusion 210 of the heating film 200 is connected to the heating wire of the entire heating film 200, the temperature probe 800 can effectively provide feedback on the heating temperature of the heating film 200 inside the seat ring. Furthermore, since it is installed after injection molding, the NTC temperature probe 800 does not require high-temperature resistant materials and can be in various forms and styles, with strong universality and adaptability, which can effectively save costs.

[0045] In some embodiments of the present invention, a cover 900 is also included, which covers the upper opening. The cover 900 is secured by snap fasteners 910 and screws, and serves both waterproofing and aesthetic purposes. Furthermore, steps are provided around the cover to prevent splashing water, and additional sealing structures such as sealing lines can be added to further enhance the waterproof and moisture-proof effect.

[0046] In some embodiments of the present invention, a partition 150 is provided inside the cavity 120, which encloses an independent space within the cavity 120. Screw mounting holes 151 are provided within this space. The cavity 120 outside the partition 150 can be filled with adhesive to further protect the PCB board 600 and its circuitry, making it safer to use. The independent space containing the screw mounting holes 151 is not filled with adhesive, facilitating the installation of the cover 900.

[0047] In some embodiments of the present invention, an LED bead 610 is provided on the PCB board 600, the LED bead 610 is electrically connected to the temperature probe 800, and a through hole is opened on the cover 900, through which the LED bead 610 passes. The LED bead 610 is used to display the heating temperature level.

[0048] In some embodiments of the present invention, the LED bead 610 is covered with a waterproof sleeve 611. The waterproof sleeve 611 serves to waterproof and prevent moisture from the LED bead 610.

[0049] A smart cover includes the aforementioned heated seat ring.

[0050] A method for preparing a heated seat ring, employing a two-stage injection molding process, includes the following steps:

[0051] S1: The seat ring upper housing 100 is produced by injection molding, the heating film 200 is pasted on the seat ring upper housing 100, and the protrusion 210 is pasted in the cavity 120;

[0052] S2: Install the sealing plate 400 at the side opening to close the side opening, and the bottom of the sealing plate 400 is in close contact with the heating film 200.

[0053] S3: The upper housing 100 of the seat ring with the heating film 200 installed is subjected to secondary injection molding to process the lower housing 300 of the seat ring. After the secondary injection molding is completed, the upper housing 100 of the seat ring, the heating film 200 and the lower housing 300 of the seat ring are an integral structure.

[0054] S4: After the secondary injection molding is completed, install the temperature fuse 500 in the cavity 120, and make the temperature fuse 500 fit tightly against the protrusion 210, and connect the circuit.

[0055] The following is a more detailed method for preparing a heated seat ring, including the following steps:

[0056] S1: The seat ring upper housing 100 is produced by injection molding. The heating film 200 is pasted on the corresponding recessed curved part of the seat ring upper housing 100, and the protrusion 210 is pasted in the cavity 120. The integrated wire harness 700 is assembled. The first power line 710 is used as the power output end, the second power line 720 is used as the power input end, and the second fixing wire clip 740 is clipped in the wire groove 130 of the seat ring upper housing 100. One end of the first power line 710 is riveted to the heating film 200, and the first fixing wire clip 730 is clipped into the L-shaped groove.

[0057] S2: Insert the sealing plate 400 into the second slot 111, press and seal the first fixing wire clip 730, so that the side opening is completely closed, and the bottom of the sealing plate 400 is in close contact with the heating film 200.

[0058] S3: The upper housing 100 of the seat ring with the heating film 200 installed is subjected to secondary injection molding to process the lower housing 300 of the seat ring. After the secondary injection molding is completed, the upper housing 100 of the seat ring, the heating film 200 and the lower housing 300 of the seat ring are an integral structure.

[0059] S4: After the secondary injection molding is completed, install the PCB board 600 in the cavity 120. The thermal fuse 500, NTC temperature probe 800, LED 610 and other components have been soldered on the PCB board 600. Make sure the thermal fuse 500 and NTC temperature probe 800 are in close contact with the protrusion 210. Then connect the other circuits. Finally, put on the cover 900 and tighten it with screws.

[0060] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A heated seat ring, characterized in that, The device includes an upper seat shell (100), a heating film (200), and a lower seat shell (300). The upper seat shell (100) and the lower seat shell (300) are integrally formed and connected. The heating film (200) is sandwiched between the upper seat shell (100) and the lower seat shell (300) and is attached to the upper seat shell (100). The upper seat shell (100) has a cavity (120) surrounded by a side plate (110). The cavity (120) has an upper opening and a side opening. The side plate (110) is connected to the upper seat shell. The body (100) is integrally formed. The heating film (200) has a protrusion (210) which extends into the cavity (120) through the side opening. The side opening is provided with a sealing plate (400) for sealing the side opening. The bottom of the sealing plate (400) is in close contact with the heating film (200). The cavity (120) is provided with a temperature fuse (500) which is in close contact with the protrusion (210). The temperature fuse (500) is electrically connected to the power supply circuit of the heating film (200). The heating seat ring is manufactured using a two-stage injection molding process, including the following steps: S1: The seat ring upper housing (100) is produced by injection molding, the heating film (200) is attached to the seat ring upper housing (100), and the protrusion (210) is attached to the cavity (120); S2: Install the sealing plate (400) at the side opening to close the side opening, and the bottom of the sealing plate (400) is in close contact with the heating film (200); S3: The upper housing (100) of the seat ring with the heating film (200) installed is subjected to secondary injection molding to process the lower housing (300) of the seat ring. After the secondary injection molding is completed, the upper housing (100), the heating film (200) and the lower housing (300) of the seat ring are an integral structure. S4: After the secondary injection molding is completed, the temperature fuse (500) is installed in the cavity (120), and the temperature fuse (500) is made to fit tightly against the protrusion (210), and the circuit is connected.

2. The heated seat ring according to claim 1, characterized in that, The cavity (120) is provided with a PCB board (600), and the thermal fuse (500) is electrically connected to the PCB board (600).

3. The heated seat ring according to claim 2, characterized in that, It also includes an integrated wiring harness (700), which includes a first power cord (710), a second power cord (720), and a first fixing clip (730). One end of the first power cord (710) is electrically connected to the heating film (200), and the other end passes through the first fixing clip (730) and is electrically connected to the PCB board (600). One end of the second power cord (720) passes through the side wall of the seat ring upper housing (100) and exits the seat ring upper housing (100), and the other end passes through the first fixing clip (730) and is electrically connected to the PCB board (600). The first fixing clip (730) is fixedly installed at the side opening.

4. The heated seat ring according to claim 3, characterized in that, The surface of the housing (100) of the seat ring has a horizontal first slot (140) located at the side opening. Vertical second slots (111) are formed on the side plates (110) on both sides of the side opening. The first slot (140) connects with one of the second slots (111) to form an L-shaped groove. The periphery of the first fixing clip (730) has a first protruding edge (731), through which the first fixing clip (730) passes. The sealing plate (400) is fitted into the L-shaped slot. Both sides of the sealing plate (400) have second protruding edges (410), and a notch is cut into the sealing plate (400). The size of the notch matches the first fixing clip (730). A third slot (420) is opened on the side wall of the notch. The sealing plate (400) is fitted into the second slot (111) through the second protruding edge (410) to close the side opening. At the same time, the third slot (420) is engaged with the first protruding edge (731).

5. The heated seat ring according to claim 4, characterized in that, The second protruding edge (410) has a stepped structure that is larger at the top and smaller at the bottom. Correspondingly, the second slot (111) has a stepped structure that is deeper at the top and shallower at the bottom. The second protruding edge (410) and the second slot (111) cooperate with each other.

6. The heated seat ring according to claim 1, characterized in that, A patch (1000) is affixed at the junction of the sealing plate (400) and the protrusion (210) to seal the gap between the bottom of the sealing plate (400) and the protrusion (210).

7. The heated seat ring according to claim 2, characterized in that, A temperature probe (800) is provided inside the cavity (120). The temperature probe (800) is in close contact with the protrusion (210). The temperature probe (800) is electrically connected to the PCB board (600).

8. The heated seat ring according to claim 1, characterized in that, It also includes a cover (900) that covers the upper opening.

9. A smart cover plate, characterized in that, Includes the heated seat ring as described in any one of claims 1-8.

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