• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    Heated toilet seat comprising a resin-based seat body (2) and includes a resistive paint circuit (3) conducting electrical current, in which said circuit is printed on a sheet (4) of paper integrated in the resin base of the seat body (2); and connection means (6th, 6b, 7th, 7b) electrically connecting the resistive circuit (3) with a source of electrical energy. Toilet comprising a heated toilet seat, a bowl and at least one electrical connection axis (9) that forms part of the seat's axis of rotation, and a method for obtaining a heated toilet seat. (Machine-translation by Google Translate, not legally binding)
    公开号:ES2782300A1
    申请号:ES201930220
    申请日:2019-03-11
    公开日:2020-09-11
    发明作者:Saura Miguel Angel Munar
    申请人:Roca Sanitario SA；
    IPC主号:
    专利说明:

    [0004] Field of the invention
    [0006] The present invention relates to a toilet seat. In particular, the present invention relates to a heated toilet seat, to a method of obtaining a resistive circuit of electrically conductive paint to be incorporated into a toilet seat, and to obtaining said heated toilet seat.
    [0008] Background of the invention
    [0010] A large number of heated toilet seats are known in the state of the art. For the most part, polypropylene toilet seats have been manufactured by welding two pieces (an upper and a lower face) between which a wire-type electrical resistance is housed that provides the necessary power for heating. Heated seats are also known with a resin body that includes a resistive wire embedded in the seat, where the seat body is putty and painted to prevent the conductor wire from being seen.
    [0012] Thus, for example, US 8,881,317 and WO2016020409 describe a seat heating system based on a wiring structure.
    [0014] JP2010075533 describes a toilet seat heating system in which an electrically conductive paint is applied, instead of wiring, directly on a thermoplastic resin sheet.
    [0016] Additionally, the heated seats known in the state of the art have highly variable electrical connection systems, which tend to condition the design of the end piece since the connection is made directly with a cable.
    [0018] In light of all the background, the present inventors have developed an improved heated toilet seat, which provides a compact appearance without the need for wiring, with uniform and controlled heating to a temperature between 25 ° C and 35 ° C, and which in turn presents a connection system for the heated seat that allows rapid assembly and disassembly ( quick-release ).
    [0020] Description
    [0022] In a first aspect, the present invention refers to a heated toilet seat comprising a resin-based seat body and characterized in that it comprises:
    [0023] - a resistive paint circuit conducting electrical current for heating the body of the seat, in which said resistive circuit is printed on a sheet of paper integrated into the resin base of said seat body; Y
    [0024] - connection means electrically connecting said conductive paint resistive circuit with a source of electrical energy to power it electrically.
    [0026] In a preferred embodiment, the base resin of the seat body is a phenolic, urea or melamine-based resin, preferably a phenolic-based resin, even more preferably, a phenol-formaldehyde-based resin, and most preferably the resin. it has a phenol-formaldehyde content between 30 and 45% by weight with respect to the total composition.
    [0028] In a particularly preferred embodiment, the resin is made of a material known as Supralit® which has the following composition:
    [0029] - 35-40% by weight of phenolic-formaldehyde resin
    [0030] - 50-60% by weight of mineral filler wood dust
    [0031] - 7-9% by weight of additives,
    [0032] adjusting the quantities so that the sum of components is 100%, and coated with a polyurethane acrylic enamel. This type of resin is particularly advantageous because it has a better quality and integrates the paper sheet in a very compact way.
    [0034] In another preferred embodiment, the paper sheet used as a support for the resistive circuit is melamine or vinyl-based, preferably melamine-based.
    [0036] In another preferred embodiment, the electrical current conductive paint resistive circuit defines a conductive track whose length, width, and paint thickness are configured to provide a predetermined resistance value as a function of the desired heating temperature.
    [0037] In another preferred embodiment, the resistive conductive paint circuit comprises a conductive ink based on metal ions, preferably silver ions, and optionally a resistive graphite ink.
    [0039] In another preferred embodiment, the toilet seat comprises overheating prevention means configured to prevent the temperature generated by the resistive conductive paint circuit from exceeding a specified maximum temperature (Tmax). In this configuration we can distinguish three possible preferred embodiments:
    [0041] 1) A configuration of the toilet seat in which the overheating prevention means comprise the resistive conductive paint circuit, which is made up of a PTC type paint (positive temperature coefficient) that stabilizes at the maximum temperature determined (Tmax ); or
    [0043] 2) A configuration of the toilet seat in which the resistive conductive paint circuit is constituted by a PTC type that has a stabilization temperature higher than the maximum temperature determined (Tmax), and in which the overheating prevention means comprise control means operatively connected to the resistive conductive paint circuit and configured to:
    [0044] - measure the electric current circulating through the resistive circuit of conductive paint, and from it, calculate the current temperature (Ta) generated by the resistive circuit of conductive paint; Y
    [0045] - controlling the voltage applied to the resistive circuit of conductive paint by means of said source of electrical energy, as a function of the current temperature (Ta) calculated; or
    [0047] 3) A toilet seat configuration in which the conductive paint resistive circuit is a main resistive circuit, and in which the overheating prevention means comprises:
    [0048] - an auxiliary resistive circuit for conductive paint of the PTC type arranged in thermal contact with the body of the seat so that as the temperature of the body of the seat increases, the temperature of the auxiliary resistive circuit for conductive paint of the PTC type increases and therefore its resistance; Y
    [0049] - control means operatively connected to the conductive paint auxiliary resistive circuit and configured to:
    [0050] - detect the resistance of the same and, from it, calculate the current temperature (Ta) generated by the main resistive circuit; and - controlling the voltage applied to the main resistive circuit by means of the electrical energy source, as a function of the current temperature (Ta) calculated.
    [0052] By "T max" is meant, in the context of the present invention, the temperature above which is considered to be uncomfortable for the user when using the toilet seat.
    [0054] By "stabilization temperature" is understood, in the context of the present invention, that temperature reached by conductive paint of the PTC type depending on its composition.
    [0056] According to a preferred embodiment, the connection means electrically connecting the resistive conductive paint circuit with a source of electrical energy, comprise respective electrical contacts arranged at both ends of the resistive conductive paint circuit. These contacts include respective electrical connectors adapted, each one of them, to be able to be coupled with the possibility of rotation to an electrical connection axis that forms the axis of rotation of the seat.
    [0058] Advantageously, the electrical connectors are configured as strips capable of being removably coupled to the electrical connection shaft that forms the axis of rotation of the seat and, preferably, the connection means also comprise respective metal connection pieces between the ends of the circuit and the electrical connectors, said connecting metal parts being integrated into the resin base of the seat body.
    [0060] A second aspect of the present invention relates to a toilet that comprises a toilet seat, according to any of the embodiments mentioned herein, individually or in combination and, advantageously, said toilet also comprises a body that acts as a of cup on which the seat is mounted, and at least one electrical connection axis for the electrical connectors of the seat that forms part of the axis of rotation of the seat. This electrical connection shaft includes a positive and a negative terminal.
    [0062] A third aspect of the present invention refers to a process for obtaining a conductive paint resistive circuit to be incorporated into a toilet seat, which comprises the stage of:
    [0063] - printing a resistive circuit of electrically conductive paint on a sheet of paper so that said resistive circuit defines a conductive track capable of being arranged in correspondence with the seat body.
    [0065] This procedure allows to advantageously obtain a resistive circuit that is perfectly integrated into the body of the seat without observing any external element, such as the wiring.
    [0067] Preferably, the paper sheet used as support for printing the resistive circuit of electrically conductive paint has been previously punched out and, advantageously, the paper sheet used as support is melamine-based or vinyl, preferably melamine-based.
    [0069] According to one embodiment, the resistive conductive paint circuit comprises a conductive ink based on metal ions, preferably silver ions, and optionally a resistive graphite ink. As an alternative to this embodiment, in another embodiment, the conductive paint resistive circuit comprises a PTC type paint.
    [0071] A fourth aspect of the present invention refers to a process for obtaining a toilet seat, according to any of the embodiments mentioned herein, individually or in combination, comprising the steps of: a) introducing the resin powder base in a mold;
    [0072] b) pressing the mold at a temperature between 150 and 190 ° C to form the base resin; c) pressing the mold again to adhere the resistive circuit of conductive paint on the sheet of paper obtained according to any of the embodiments mentioned herein, individually or in combination.
    [0074] In a preferred embodiment, the base resin of step a) is a phenolic, urea or melamine base resin, more preferably a phenolic base resin, even more preferably a phenol-formaldehyde base resin and most preferably , a resin with a phenol-formaldehyde content between 30 and 45% by weight with respect to the total composition. In a particularly preferred embodiment, the resin is made of a material known as Supralit® which has the following composition:
    [0075] - 35-40% by weight of phenolic-formaldehyde resin
    [0076] - 50-60% by weight of mineral filler wood dust
    [0077] - 7-9% by weight of additives,
    [0078] adjusting the quantities so that the sum of components is 100%, and coated with a polyurethane acrylic enamel.
    [0080] Advantageously, the method further comprises the steps of:
    [0081] d) remove burrs, and / or
    [0082] e) paint the toilet seat in the desired color.
    [0084] Brief description of the figures
    [0086] For a better understanding of what has been stated, some drawings are attached in which, schematically and only by way of non-limiting example, an embodiment of the heated toilet seat of the present invention is represented.
    [0088] In these drawings;
    [0089] Figure 1 schematically represents the formation of the heated toilet seat used; the resin-based seat body and the paper sheet on which the electrical current conductive paint circuit is printed, to finally obtain a heated toilet seat that integrates the resistive paint circuit into the resin base.
    [0090] Figure 2 schematically represents a conductive track of the resistive electric current circuit.
    [0091] Figure 3 schematically represents a first conductive track of a main resistive circuit of conductive paint, and a second conductive track of an auxiliary resistive circuit of conductive paint of the PTC type, which is arranged in thermal contact with the seat body.
    [0092] Figure 4 is a perspective view showing the seat portion that includes the connection means that electrically connects the resistive conductive paint circuit with a source of electrical energy provided on an electrical connection shaft (not shown) that forms the shaft. rotation of the seat.
    [0093] Figure 5 is a perspective view of the seat portion of Figure 4 including the connection means protected by a trim piece of the seat.
    [0094] Figure 6 shows a section of the seat portion of Figure 5.
    [0095] Figure 7 is a perspective view showing the seat portion including the electrical connection means of Figure 4 rotatably mounted on the electrical connection axis that forms the axis of rotation of the seat.
    [0096] Fig. 8 is a perspective view showing a section of the seat portion including the electrical connection means coupled to the electrical connection shaft that forms part of the axis of rotation of the seat of Fig. 7.
    [0098] Description of a preferred embodiment
    [0100] A preferred embodiment of the heated toilet seat of the present invention is described below with reference to Figures 1 to 8.
    [0102] The heated toilet seat 1 of the present invention comprises a resin-based seat body 2, preferably a resin-based body 2 from the Supralit ® brand, inside which a sheet 4 of the material has been integrated by means of a pressing process. paper including an electrically conductive paint printed resistive circuit 3. In the embodiment described, the sheet 4 on which the resistive circuit 3 has been printed is made of melamine paper.
    [0104] The resistive circuit 3 defines an electrical current conducting track with its ends located in a portion of the seat 1 that is coupled to an electrical connection shaft 9 that forms the axis of rotation of the seat 1.
    [0106] As described in the description of the invention, the electrically conductive paint may consist, according to one embodiment, of a conductive ink based on metal ions, such as silver ions, and optionally include a resistive ink. graphite. This type of paint has a specific resistance that when applying a voltage, increases the temperature due to the intensity that circulates through the circuit. In this embodiment, the seat temperature control is accomplished by adjusting the power supplied to the circuit down to obtain the desired temperature.
    [0108] According to another embodiment, the electrically conductive paint can consist of a PTC-type paint that stabilizes at the desired maximum temperature, for example at a temperature of 30 ° C, which makes it possible to increase the power so that the seat 1 is heated more fast, and at the same time prevent overheating of the seat 1.
    [0110] Optionally, for the cases in which a PTC type paint is used with a stabilization temperature higher than the desired one, the use of control means (not shown) configured to measure the electric current circulating and from it, calculate the current temperature generated by the resistive circuit 3 of conductive paint of the PTC type. In this way it is possible to adjust the voltage applied to the resistive circuit 3, depending on the current temperature calculated, to prevent overheating of seat 1.
    [0112] An alternative option to that described in the previous paragraph, which also makes it possible to prevent the seat 1 from overheating, consists of the use of a PTC-type auxiliary resistive conductive paint circuit 5 and control means (not shown) connected operatively with the auxiliary circuit 5 and configured to detect the resistance of the auxiliary circuit 5 and, from it, calculate the current temperature generated by the main resistive circuit 3. In this way it is possible to adjust the voltage applied to the main resistive circuit 3 as a function of the current calculated temperature, to prevent overheating of the seat 1. The auxiliary resistive circuit 5 is arranged in thermal contact with the body 2 of the seat 1 so that when increasing the temperature of the body 2 increases its temperature, and therefore its resistance, which is used by the control means to calculate the current temperature generated by the main resistive circuit 3 (see figure 3).
    [0114] The claimed seat 1 has the particularity that it includes a seat portion that includes the connection means that electrically connect the ends of the resistive circuit 3 of conductive paint with an electrical connection axis 9 that forms the axis of rotation of the seat 1. Such and as can be seen in figure 7, the electrical connection shaft 9 through which the power is fed to the resistive circuit 3, is arranged in a seat casing 1 that is coupled to the bowl (not shown) of the toilet.
    [0116] The electrical connection means comprise respective electrical contacts arranged at each end of the resistive circuit 3 in contact with the conductive paint. Each of the contacts includes a metallic connection piece 6a, 6b with a respective electrical connector 7a, 7b that couples to the electrical connection shaft 9. Figure 5 shows the electrical connection means protected by a trim piece 8 that is coupled to the base body 2 of the seat 1.
    [0118] In the embodiment described, the connectors 7a, 7b are configured as metal strips capable of being removably coupled to the positive and negative terminals of said electrical connection axis 9a, 9b (see figure 8). This system of straps facilitates the quick assembly and disassembly of the seat without using any tool ( quickrelease mounting system), and at the same time provides an electrical connection that has the advantage that it does not affect the design of the seat 1.
    [0120] As regards the metal parts 6a, 6b of the connection means, these are integrated into the resin-based body 2 of the seat 1 and have a configuration in the shape of a substantially "L", with a portion of the "L" ”Arranged in contact with the resistive circuit 3 of electrical conductive paint (see figure 6). These parts 6a, 6b are included in the body 2 of the seat during the molding process.
    [0122] An example of the procedure for obtaining the conductive paint resistive circuit and the seat is described below. In this example, the conductive paint resistive circuit 3 is powered by a 12V voltage source.
    [0124] First, the base resin (Supralit®) in powder is placed in a suitable mold to obtain the toilet seat 1. This is followed by a first pressing at 170 ° C to form the material.
    [0126] At the same time, a resistive circuit 3 is printed on a sheet 4 of melamine paper by applying a conductive silver-based ink that defines the conductive track for the electric current.
    [0128] In a second phase, the resistive circuit 3 painted on the sheet 4 of melamine paper is incorporated into the seat body 2 by pressing. Previously, the sheet 4 of melamine paper is punched in the shape of the perimeter of the seat 1.
    [0130] It has been observed that the heating of the seat 1, induced by the electric current circulating through the resistive circuit 3 of conductive paint, is carried out equally in all areas where there may be contact with the user. The connections to the voltage source are made in such a way that they engage at the point of rotation with the electrical connection axis 9 which is in turn the axis of rotation of the heated seat 1.
    [0132] A person skilled in the art could introduce changes and modifications to the described embodiments without departing from the scope of the invention as defined in the attached claims.
    权利要求:
    Claims (34)
    [1]
    1. Heated toilet seat (1) comprising a resin-based seat body (2), characterized in that it includes:
    - A resistive paint circuit (3) conducting electric current to heat the body (2) of the seat, in which said resistive circuit (3) is printed on a sheet (4) of paper integrated into the resin base of the seat body (2); and - connecting means (6a, 6b, 7a, 7b) electrically connecting the conductive paint resistive circuit (3) with a source of electrical energy.
    [2]
    A toilet seat (1) according to claim 1, wherein said resin is a phenolic, urea or melamine based resin.
    [3]
    3. Toilet seat (1) according to claim 2, wherein said resin is phenolic-based.
    [4]
    A toilet seat (1) according to claim 3, wherein said phenolic-based resin is phenol-formaldehyde-based.
    [5]
    5. Toilet seat (1) according to claim 4, in which said resin has a phenol-formaldehyde content between 30 and 45% by weight with respect to the total composition.
    [6]
    6. Toilet seat (1) according to claim 5, wherein said resin is a material having the following composition:
    - 35-40% by weight of phenolic-formaldehyde resin
    - 50-60% by weight of mineral filler wood dust
    - 7-9% by weight of additives,
    adjusting the quantities so that the sum of components is 100%, and coated with a polyurethane acrylic enamel.
    [7]
    Toilet seat (1) according to any of the preceding claims, in which the paper sheet is melamine or vinyl based.
    [8]
    8. Toilet seat (1) according to claim 7, wherein the paper sheet is melamine-based.
    [9]
    A toilet seat (1) according to any preceding claim, wherein the conductive paint resistive circuit (3) defines a conductive track whose length, width and paint thickness are configured to provide a predetermined resistance value at function of the desired heating temperature
    [10]
    A toilet seat (1) according to any of the preceding claims, wherein the resistive conductive paint circuit (3) comprises a conductive metal ion-based ink.
    [11]
    A toilet seat (1) according to claim 10, wherein said metal ions are silver ions.
    [12]
    12. Toilet seat (1) according to any one of claims 1 to 9, comprising overheating prevention means configured to prevent the temperature generated by the resistive conductive paint circuit (3) from exceeding a certain maximum temperature ( Tmax).
    [13]
    13. Toilet seat (1), according to claim 12, in which said overheating prevention means comprise said (3) conductive paint resistive circuit, which is constituted by a PTC type paint (positive temperature coefficient) that stabilizes at the maximum temperature determined (Tmax).
    [14]
    14. Toilet seat (1), according to claim 12, in which the resistive conductive paint circuit is made up of a PTC type that has a stabilization temperature greater than the maximum temperature determined (Tmax), and in which The overheating prevention means comprise control means operatively connected to the resistive conductive paint circuit (3) and configured to:
    - measure the electric current circulating through the resistive conductive paint circuit (3), and from it, calculate the current temperature (Ta) generated by the resistive conductive paint circuit (3); Y
    - control the voltage applied to the conductive paint resistive circuit (3) by means of the electrical energy source, as a function of the current temperature (Ta) calculated.
    [15]
    A toilet seat (1) according to claim 12, in which the conductive paint resistive circuit (3) is a main resistive circuit, and in which the overheating prevention means comprise:
    - A PTC-type conductive paint auxiliary resistive circuit (5) arranged in thermal contact with the body (2) of the seat so that as the temperature of the seat body (2) increases, the temperature of the auxiliary resistive circuit (5) of the conductive paint of the PTC type, and therefore its resistance; Y
    - control means operatively connected with the conductive paint auxiliary resistive circuit (5) and configured to:
    - detect its resistance and, from it, calculate the current temperature (Ta) generated by the main resistive circuit (3); and - controlling the voltage applied to the main resistive circuit (3) by means of the electrical energy source, as a function of the current temperature (Ta) calculated.
    [16]
    16. Toilet seat (1), according to any of the preceding claims, in which the connection means to the electrical power source comprise respective electrical contacts arranged at both ends of the resistive conductive paint circuit (3), wherein said contacts They include respective electrical connectors (7a, 7b) adapted, each one of them, to be able to be coupled with the possibility of rotation to an electrical connection axis (9) that forms the axis of rotation of the seat (1).
    [17]
    Seat (1) according to claim 16, in which said electrical connectors (7a, 7b) are configured as strips capable of being removably coupled to the electrical connection axis (9) that forms the axis of rotation of the seat (1).
    [18]
    18. Seat (1) according to any of claims 16 to 17, in which the electrical contacts of the connection means further comprise two metal connection pieces (6a, 6b) between the ends of the resistive circuit (3) and the electrical connectors (7a, 7b), where said metal connection pieces (6a, 6b) are integrated into the resin base of the body (2) of the seat (1).
    [19]
    19. Toilet comprising a toilet seat, according to any of claims 1-18.
    [20]
    20. Toilet comprising a toilet seat (1) according to claim 19, and a body acting as a bowl on which said seat (1) is mounted, wherein said toilet includes at least one connecting shaft (9) electrical for the electrical connectors (7a, 7b) of the seat (1), which is part of the axis of rotation of the seat (1).
    [21]
    21. Procedure for obtaining a conductive paint resistive circuit (3) to be incorporated into a toilet seat (1), comprising the step of:
    - Printing a resistive circuit (3) of electrically conductive paint on a sheet (4) of paper so that said resistive circuit (3) defines a conductive track capable of being arranged in correspondence with the seat body (2).
    [22]
    22. Method according to claim 21, in which the sheet (4) of paper has been previously punched out.
    [23]
    23. Process according to claim 21 or 22, in which the paper sheet (4) is melamine or vinyl-based.
    [24]
    24. Process according to claim 23, in which the paper sheet (4) is melamine-based.
    [25]
    25. Process according to any of claims 21 to 24, in which the conductive paint resistive circuit (3) comprises a conductive ink based on metal ions.
    [26]
    26. The method according to claim 25, wherein said metal ions are silver ions.
    [27]
    27. Process according to any of claims 21 to 24, in which the resistive conductive paint circuit (3) comprises a PTC type paint.
    [28]
    28. Process for obtaining a toilet seat (1), according to any of claims 1 to 18, comprising the steps of:
    a) introducing the powdered base resin into a mold;
    b) pressing the mold at a temperature between 150 and 190 ° C to form the base resin; c) pressing the mold again to adhere the resistive conductive paint circuit to the sheet (4) of paper obtained according to any of claims 21 to 27.
    [29]
    29. The process according to claim 28, wherein the resin is a phenolic, urea or melamine based resin.
    [30]
    30. Process according to claim 29, in which the resin is phenolic-based.
    [31]
    31. Process according to claim 30, in which the phenolic-based resin is phenol-formaldehyde-based.
    [32]
    32. Process according to claim 31, in which the resin has a phenol-formaldehyde content between 30 and 45% by weight with respect to the total composition.
    [33]
    33. The method according to claim 32, in which the resin is a material having the following composition:
    - 35-40% by weight of phenolic-formaldehyde resin
    - 50-60% by weight of mineral filler wood dust
    - 7-9% by weight of additives,
    adjusting the quantities so that the sum of components is 100%, and coated with a polyurethane acrylic enamel.
    [34]
    34. A method according to any one of claims 28 to 33, further comprising
    d) remove burrs, and / or
    e) paint the toilet seat in the desired color.
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    同族专利:
    公开号 | 公开日
    ES2782300B2|2021-09-15|
    EP3708056A1|2020-09-16|
    引用文献:
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    法律状态:
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    优先权:
    申请号 | 申请日 | 专利标题
    ES201930220A|ES2782300B2|2019-03-11|2019-03-11|HEATED TOILET SEAT, TOILET AND PROCEDURE FOR OBTAINING A TOILET SEAT|ES201930220A| ES2782300B2|2019-03-11|2019-03-11|HEATED TOILET SEAT, TOILET AND PROCEDURE FOR OBTAINING A TOILET SEAT|
    EP20162520.9A| EP3708056A1|2019-03-11|2020-03-11|Heated toilet seat|
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