Classifications

• • D—TEXTILES; PAPER
  • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
  • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
  • D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
  • D06F37/30—Driving arrangements 
  • D06F37/304—Arrangements or adaptations of electric motors

Definitions

• Patent that addresses improvements introduced in clothes washing machines and dryers. These improvements are essentially characterized b the fact that they introduce two new types of electric motors in the construction of the aforementioned equipment.
• clothes washing machines in general also called washers, are basically characterized by accelerating the clothes washing process by means of the friction created by the resulting movement inside the washing chamber (tub).
• washing machines and washing systems There is a wide variety of washing machines and washing systems on the market. Generally speaking , there are two representative systems: washing by tumbling and by agitation.
• the clothing is placed inside the washing chamber (tub), which is arranged horizontally and receives the circular movement of the motor through a belt and pulley and starts to revolve 360 1 around an axis.
• the water, clothing and chemical agent accompany the circular movement of the tub until they reach its upper part, after which the tub falls, forced downwards by the force of gravity, promoting the collision and friction of the water and clothing with the surface of the basket, thus loosening of dirt.
• the clothing is not totally submersed, hence less water is required than with washing by agitation, where the clothing is totally submersed.
• the clothing is loaded from the front (door), obliging consumers to lean down, thus representing an ergonomic problem.
• the water is substituted by water vapor (dry cleaning), and the soap powder by other chemical agents (products), including perchloretylene, Dry Part and Acqua Clean.
• the clothing is totally submersed, contributing towards a relatively high consumption of water. Furthermore, the motor is constantly required to promote the alternate horizontal movement of the axis with blades, thus increasing the amperage and consequently the consumption of electric power. In this system the clothing is accessed from the top of the machine (lid), thus guaranteeing better ergonomics.
• the tumblers which are usually horizontal and cylindrical, rotate 360 1 around an axis together with the clothing at a fixed speed that decreases after the upper part of the tub is reached.
• Hot air is simultaneously introduced in the tub from a fan positioned at the back, top or lower part of this tub, which provokes the flow of air by a heated element. Once heated, the air circulates naturally around the tub and consequently over the surface of the clothing, drying it.
• the actual surface of the washing tank was used to fix a part of the second motor; in this manner, a second motor was obtained, consisting of a belt or ring of induced or inductors covered by plastic and fastened to the middle point of the surface of the tank to isolate the current; the other part of the motor, comprising another ring of induced or inductors sealed off from contact with water was coupled to the internal surface of the supporting arch, which covered the entire tank, and consequently the ring or belt of induced or inductors at its middle point.
• the elements that comprise an electric motor were obtained i.e. , inductor and induced.
• An electric current was supplied to this assembly in order to generate a magnetic field that executed the 360° turn around the second axis.
• the purpose of this patent is to substantially alter the concept of conventional clothes washing and drying machines in order to provide for the application of the innovative ring-motor concept (circumscribed) and now also of the flat ring-motor and respective variations, in mini clothes washing and drying machines that are more compact than current ones.
• the circumscribed and flat ring-motor, encapsulated with plastic and protected from contact with water applied directly or indirectly on the surface of the tank or tub serves as an excellent substitute for various normal mechanic components necessary for the movement of the washing tub, such as belts, pulleys, gears and gearbox, thus generating new advantages.
• These advantages include the optimization of the washing process, with consequent economy of water, space and electric power, since the washing process is executed in a compact machine with much smaller dimensions than current ones, which on average wash 5 kg and consume around 240 liters of water in their total cycle.
• Another advantage of a constructive nature consists of the application of the aforementioned electric motor concept to the compact machine or mini washer mini dryer concept, thus facilitating their construction and balancing further to simplifying their use.
• part of the ring-motor can be coupled on the surface of the tank, of the tub, of the lid, of the axis with blades or on the outside lower part of the tank, generating the circular or alternate movement of the washing chamber (tub) directly or indirectly without the assistance of secondary parts. In this manner the components are optimized the machine is consequently compacted.
• Another advantage is the possibility of coupling part of this motor (estator) on the surface of the machine door while the other part (rotor) can be coupled on the surface of the tub. Hence when the door of the machine is opened, the rotor is automatically separated from the stator, turning it off and expanding the use and application of the concept.
• An additional advantage refers to the fact that the tub can be optionally removed at the end of the washing process and serve to transport the clothing.
• Another advantage is related to the fact that we can use the electric ring-motor as an autonomous and independent component of the clothes tub assembly, that can therefore be coupled circumstantially to execute specific tasks, in tanks of varied dimensions suited to the quantity of clothing.
• Yet another advantage refers to the fact that the parts of the ring-motor, i.e., rotor and stator, are independently encapsulated in plastic, thus guaranteeing sealing against water and the insulation of the current.
• the aforementioned parts when manufactured they will be injected with plastic or ferrite (syntherized) and subsequently polymerized.
• the circumscribed ring-motor must be differentiated from the flat ring- motor.
• the former type has the basic components of a conventional motor: rotor (permanent magnets, electromagnets or even a squirrel grid) and stator (coil), only in this case in a ring format, with one ring circumscribed to the other, i.e. , one ring (rotor) with a smaller diameter totally covered by another ring (stator) with a large diameter or vice versa, thus obtaining the elements that form an electric motor, i.e., inductor and induced. An electric current is induced to this plastically encapsulated assembly protected from contact with water to generate a magnetic field , which drives the circular movement of the rotor around an axis.
• the flat ring-motor has the same components: rotor and ring-stator, only arranged in parallel, with the active sides of their rings facing , contrary to the previous one whose rings are circumscribed.
• the ring or rotor disc with its permanent magnets are positioned equidistantly and with their active side facing the active side of the ring or coiled stator disc.
• it is possible to substitute the permanent magnets of the ring or rotor disc with a magnetic belt or squirrel grid thus adapting the construction of the motor to the implicit requirements, whether for a synchronous or asynchronous motor.
• the use of permanent magnets is indicated in synchronous motors as we have precise control of the RPM (rotation per minute) and of the speed.
• the ring format of the motor permits the arrangement of a greater number of permanent magnets on its surface, and respectively, a greater number of poles, making for a wide range of variations from high to reduced speeds automatically, without the need for a mechanic speed reducer (gearbox).
• the use of natural or polymerized ferrite (syntherized) magnets in the rotor naturally establishes protection against the action of water and does away with the need for subsequent encapsulation.
• the use of neodimeo magnets that are naturally more powerful reduces the number of necessary magnets in comparison to other less powerful ones.
• a BDC type Brushless motor consisting of a stator ring with an embricado type three phase bearing with 90 poles, covered by a magnetic core (crown of the stator) without teeth , and a rotor ring consisting of 90 permanent magnets arranged in parallel and equidistantly, supported by a magnetic conductor (rotor crown).
• the stator bearings are supplied with power by an "drive”, with a single phase 220V inlet.
• drive with a single phase 220V inlet.
• a BDC type Brushless motor consisting of a stator ring with embricado type three phase bearing, with an "N" number of poles (suited to the necessary power and speed), covered by a toothless magnetic core (stator crown) and a rotor ring, consisting of an "N” number of permanent magnets arranged in parallel and equidistantly, supported by a magnetic conductor arch (rotor ring).
• the supply and control of the speed and rotation of the motor is executed by an electronic Drive device that controls and establishes a low speed for washing and a higher one for spinning.
• One of the forms of independent assembly consists of coupling the motor components, i.e. , rotor and stator respectively, on the surface of two discs arranged in parallel ; the first equipped with a hole and central bearing and the second equipped with an activating axis coupled at its center. This axis fits into and overreaches the hole and the bearing of the first disc, thus maintain the assembly mounted and aligned.
• Another form is to apply the components of the ring-motor, i.e. , rotor and stator , to the surface of the rings of a bearing with specific dimensions and properties, thus transforming the simple bearing into a "ring-motor bearing", i.e. , a bearing with a coupled electric motor in its body.
• ring-motor bearing i.e. , a bearing with a coupled electric motor in its body.
• the basic configuration of conventional bearings consists of an internal ring and another external ring, separated by one or two tracks of spheres or ring rollers that guarantee the concentricity, assembly and independent movement of the rings.
• This set of innovations serves to simplify the construction of the machines, reducing the number of component parts and making the viability of the new concept effectively more concrete.
• this set of innovations also applies to conventional simple tumbling washers and dryers (horizontal cylindrical tanks) and washers and dryers that operate by agitation (vertical cylindrical tanks). With the application of the innovations developed here in the aforementioned conventional machines, these become more compact, lighter and substantially simpler, both in constructive and operational terms.
• figure 1 illustrates the components of the circumscribed ring- motor or magnet of the parts, i.e. , the permanent magnet rotor, totally circumscribed by the permanent magnets, totally circumscribed by the stator;
• figure 2 illustrates the rotor of the circumscribed ring-motor separately;
• figure 3 illustrates the rotor and stator of the circumscribed motor arranged separately;
• figure 4 illustrates the rotor of the circumscribed ring-motor using a magnetic belt or squirrel grid to substitute the permanent magnets;
• figure 5 illustrates the rotor of the flat ring-motor;
• figure 6 illustrates the rotor and stator of the flat ring-motor arranged in parallel and with their active sides turned towards each other;
• figure 7 shows a variation of the flat ring-motor using a magnetic belt or squirrel grid to substitute the permanent magnets of the rotor;
• figure 8 illustrates the independent assembly of the circumscribed ring-motor with the rotor and stator mounted on the surface of the two discs
• FIG. 1 illustrates the electric circumscribed ring- motor 1 , previously mentioned in an upper perspective view o with rotor 2, of permanent magnets 3, surrounded by the stator ring (coil) 4, which totally circumscribes it. An electric current is induced to this assembly in order to generate a magnetic field that causes the circular or alternate movement of rotor 2 around an axis.
• Figure 2 illustrates the rotor ring 2 of the circumscribed ring-motor 1 separately with its permanent magnets 3, arranged in parallel and equidistantly, over its surface.
• Figure 3 illustrates the rotor ring 2, with its permanent magnets 3, and the stator ring 4, of the circumscribed ring-motor 1 , arranged separately.
• Figure 4 shows a perspective of the rotor 2 of the circumscribed ring-motor 1 , using a squirrel grid or magnetic belt 5, to substitute the permanent magnets 3.
• Figure 5 illustrates the ring or rotor disc 7 of the flat ring-motor 6 separately, with its permanent magnets 8, arranged equidistantly, over its surface.
• Figure 6 illustrates the ring or rotor disk 7, and the ring or stator disk 9, of the flat ring-motor 6, arranged in parallel with their active sides facing each other.
• Figure 7 illustrates the variation of the flat ring-motor concept 6, with the front of the stator ring 9, turned to the front of the rotor ring 7, a rotor with a squirrel grid or magnetic belt 10 coupled on its surface to substitute the permanent magnets 8.
• Figure 8 shows an independent form of mounting the ring-motor, including a circumscribed ring-motor 1 , with the stator ring 4, mounted on the internal perimeter structure of a disc 1 1 , with a hole 12 in its center.
• This disc totally circumscribes the rotor ring 2, a rotor which in turn is coupled on the external perimeter surface of another disc 13, which transmits the circular or alternate movement of the rotor 2 through an axis 14, positioned in the center of the disc 13, which overreaches the central hole 12 of the disc 1 1 .
• this hole has a fitted bearing 15, which surrounds and supports the axis 14, thus guaranteeing the movement of the rotor ring 2, further to the mounting and alignment of the assembly.
• Figure 9 shows a perspective view with a cross-section of another form of independent assembly on the surface of a bearing (R).
• a circumscribed ring-motor 1 is provided for, in which the rotor ring 2 and the stator ring 4 are respectively coupled on the surface of the internal bearing rings 16 and external bearing 17 of a bearing (R).
• the external surface of the internal bipartite bearing ring 16 is used to fix a part of the circumscribed ring-motor 1 , i.e.
• FIG. 10 highlights the detail of the mounting of the assembly described in figure 9, where the following components can be seen: rotor 2, stator 4, internal bearing ring 16 and external bearing ring 17 and track of spheres or ring rollers 18 of the circumscribed motor 1.
• Figure 1 1 in the same way as figure 8, illustrates the independent mounting of the ring-motor, only in its flat ring configuration, i.e., flat ring-motor 6, with part, i.e., with the stator ring 9 mounted on the front of a disc 11 , which has a hole 12 in its center.
• This entire disc faces the rotor ring 7 in parallel, and the rotor is coupled on the front of another disc 13, which transmits the circular or alternate movement of the rotor 7 through an axis 14, positioned in the center of the disc 13, which overreaches the central hole 12 of the disc 1 1 .
• this hole has a fitted bearing 15, which surrounds and supports the aforementioned part further to the mounting and alignment of the entire assembly.
• the innovations arising from the use of the ring-motor permit operating advantages, including the possibility of using the actual surface of the basket and tank to fix part of the ring-motor.
• Figure 14 illustrates another advantage concerning the possibility of coupling part of this encapsulated circumscribed ring-motor 1 on the surface of lid 21 of the washing machine, i.e. , stator 4, while the other part, the encapsulated rotor 2, can be coupled on the surface of the tub 20, permitting the circular and alternate movement of the aforementioned tub 20, thus expanding the use and application of the concept in the so-called agitation system, although emphasizing the importance of keeping the distance and alignment of the rotor 2 in relation to the stator 4, unaltered.
• figure 15 illustrates a circumscribed ring-motor 1 , with part, i.e., the stator ring 4, supported on the outside posterior surface of the tank 19, which totally circumscribes the rotor ring 2, which in turn is coupled on the surface of a disc 13, and transmits the circular or alternate circular movement of the rotor 2, to the tub 20, through an axis 14 positioned in the center of the disc 13, which overreaches the aforementioned tank 19, and touches the tub 20, thus causing the circular or alternate circular movement and permitting the optional removal of the aforementioned tub at the end of the washing process.
• part i.e., the stator ring 4 supported on the outside posterior surface of the tank 19, which totally circumscribes the rotor ring 2, which in turn is coupled on the surface of a disc 13, and transmits the circular or alternate circular movement of the rotor 2, to the tub 20, through an axis 14 positioned in the center of the disc 13, which overreaches the aforementioned tank 19, and touches the tub 20, thus causing the circular or alternate circular movement and permitting the optional removal of
• Figure 17 illustrates another advantage related to the possibility of coupling part of this encapsulated circumscribed ring-motor 1 on the surface of the lid 21 of the clothes machine, comprising a stator 4, while the other part consisting of a rotor 2 can be coupled on the surface of the tub 20, thus permitting its circular or alternate circular movement and expanding the use and application of the concept in the so-called tumbling system.
• part of the encapsulated flat ring-motor 6, i.e. , the stator 9, is coupled on the immobile top surface of the tank 1 9, and the other part of the motor, consisting of the encapsulated rotor 7, is coupled to the upper surface of the tub 20.
• I n figure 20 as in figure 14, part of the flat ring-motor 6, the stator 9, is encapsulated, coupled on the surface of the lid 21 of the washing machine, while the other part, i .e. , the encapsulated rotor 7, is coupled on the surface of the tub 20, thus executing the circular and alternate movement of the aforementioned tub 20.
• I n figure 21 as in figure 15, access to the tub 20 is made from the front of the machine, and part of the flat ring-motor 6, the encapsulated stator 9, is coupled to the outside posterior surface of the tank 19; while another part, the rotor 7, is coupled to the surface of a disc 13, which transmits the alternate circular movement of the rotor 7 to the tub 20 through an axis 14, central driver.
• part of the encapsulated flat ring-motor 6, i.e. the stator 9, is coupled on the immobile front surface of the tank 1 9, and the other part of the motor, consisting of the encapsulated rotor 7, is coupled to the front surface of the tub 20.
• the encapsulated stator 9 is coupled on the surface of the clothing access lid 21 of the washing machine, while the other part, i .e. , the encapsulated rotor 7, is coupled on the surface of the tub 20, thus executing the circular and alternate movement of this tub 20.
• part of the circumscribed ring-motor 1 i.e. , the stator 4 is coupled on the immobile upper surface of the tank 19, now tilted , and the other part of the motor, consisting of the rotor 2, is coupled to the top surface of the tub 20.
• part of the circumscribed ring-motor 1 i.e. , the stator 4 is coupled on the surface of the lid 21 of the washing machine, now tilted, while the other part (rotor 2) is coupled on the surface of the tub 20, thus executing the circular and alternate movement of this tub 20.
• Figure 28 like figure 19, now shows part of the flat ring-motor 6, i.e., the stator 9, coupled on the immobile top surface of the tank 19, now tilted , and the other part of the motor, consisting of the rotor 7, coupled to the top surface of the tub 20.
• stator 9 is coupled on the surface of the lid 21 of the now tilted washing machine, while the other part (rotor 7) is coupled on the surface of the tub 20, thus executing the circular and alternate movement of this tub 20.
• a circumscribed ring-motor 1 is established with part, i.e. , the stator ring 4, supported on the outside bottom surface of the tank 19, which circumscribes the entire rotor ring 2, which in turn is coupled on the surface of a disc 13, and transmits the circular or alternate movement of the rotor 2 to the axis with blades 22, through a central driving axis 14, positioned in the center of the disc 13, which overreaches the tank 19, and touches the axis with blades 22 during the washing cycle, making it rotate, and that after being uncoupled from the axis with blades 22, touches the tub during the spinning cycle (pursuant to figure 30).
• a flat ring-motor 1 is established with part, i.e. the stator ring 9, supported on the outside bottom surface of the water contention tank, tank 19, which completely faces the rotor ring 7, which in turn is coupled on the surface of a disc 13, and transmits the circular or alternate movement of the rotor 7 to the axis with blades 22, through a central driving axis 14, positioned in the center of the disc 13, which overreaches the tank 19, and touches the axis with blades 22 during the washing cycle, making it rotate, and that after being uncoupled from the axis with blades 22, touches the tub 20 during the spinning cycle (pursuant to figure 31 ).
• Figure 32 illustrates the application of the circumscribed ring-motor 1 in the same manner as in figure 30, only with the blade axis separated from direct contact with the clothing.
• a circumscribed ring-motor 1 is established with part, i.e. the stator ring 4, supported on the outside bottom surface of the tank 19, and that totally circumscribes the rotor ring 2, which in turn is coupled on the surface of a disc 13, which transmits the circular or alternate movement of the rotor 2 to the axis with blades 22, separated from direct contact with the clothing by a screen or grid 23, through a central driving axis 14, positioned in the center of the disc 1 3, which overreaches the tank 19, and touches the axis with blades 22 during the washing cycle, making it rotate, and t hat after being uncoupled from the axis with blades 22, touches the tub 20 during the spinning cycle.
• FIG 33 illustrates the application of the flat ring-motor 6 in the same manner as in figure 31 , only with the blade axis separated from direct contact with the clothing.
• a flat ring-motor 6 is established with part, i.e. , the stator ring 9, supported on the outside bottom surface of the water contention tank, tank 1 9 , which completely faces the rotor ring 7, which in turn is coupled on the surface of a disc 13, and transmits the circular or alternate movement of the rotor 7 to the axis with blades 22, separated from direct contact with the clothing by a screen or grid 23, through a central driving axis 14, positioned in the center of the disc 13, which overreaches the tank 19, and touches the axis with blades 22 during the washing cycle, making it rotate, and that after being uncoupled from the axis with blades 22, touches the tub 20 during the spinning cycle.
• mini clothes dryers which like mini washing machines eliminate or reduce various mechanical components used in transmission such as pulleys, belts and gears, as illustrated in figures 34, 35, 36, 37, 38 and 39.
• the clothing is accessed from the front part of the mini dryer.
• One of the parts of the circumscribed ring-motor 24, the stator 26, is integrated to the outside posterior surface of the tank 19; and the other part, the rotor 25, is integrated to the surface of a disc 1 3, which transmits the circular movement of the rotor 25 to the tub 20, through a driving axis 14.
• part of the circumscribed ring-motor 24 of the mini drier i .e. the stator 26, is coupled on the immobile front surface or coupled to the front surface of the tub 20.
• part of the circumscribed ring-motor 24 of the mini drier i.e. the stator 26, is coupled on the surface of the clothing access lid 21 of the clothes dryer, while the other part, the rotor 25, is coupled on the surface of the tub 20, thus executing the circular and alternate movement of the aforementioned tub 20.
• one of the parts of the flat ring-motor 27 of the mini dryer, the stator 29, is integrated to the outside posterior surface of the tank 1 9; and the other part, the rotor 28, is integrated to the surface of a disc 13, which transmits the circular movement of the rotor 28, to the tub 20, through an axis 14.
• part of the flat ring-motor 27 of the mini dryer, i.e. , the stator 29, is coupled on the immobile front surface of the tank 1 9; and the other part of the motor, consisting of the rotor 28, is coupled to the front surface of the tub 20.
• part of the flat ring-motor 27, i.e. the stator 29, is coupled on the surface of the clothing access lid 21 of the dryer, while the other part, the rotor 28, is coupled on the surface of the tub 20, thus executing the circular movement of this tub 20.
• the tub and tank assembly can occasionally be coupled to the aforementioned agitator for the execution of an intended task.
• Another advantage of an operational nature consists of having the components responsible for the movement, in the case of the ring-motor, of the remaining assembly, tub and tank, totally separate, thus permitting the separate packaging, transport, handling and even purchase of the aforementioned components.
• the agitator is the independent ring-motor consisting of a rotor and stator appropriately mounted and encapsulated, which transmits the circular movement of the rotor through an axis fastened to the assembly, in the case of the tank and tub, the central .
• Figure 40 illustrates the aforementioned agitator 30, comprising a circumscribed electric ring- motor 1 , with the stator ring 4, mounted on the internal perimetric structure of a disc 31 , with a hole in its center 32.
• This disc fully circumscribes the rotor ring 2, which is coupled on the outside perimetric surface of a disc 33, which transmits the circular or alternate movement of the rotor 2 through an axis 34, positioned in the center of disc 33, which overreaches the central hole 32 of the disk 31 .
• FIG. 41 shows the agitator assembly 37, now using the flat ring-motor 6, with the stator ring 9 mounted on the front of a disc 38, with a hole 39 in its center.
• This disc fully faces the rotor ring 7 in parallel , and this rotor is coupled on the front of another disc 40, which transmits the circular or alternate movement of the rotor 7 through an axis 34, positioned in the center of the disc 40.
• This axis overreaches the central hole 39 of the disk 38.
• this hole has an lodged bearing 35, which surrounds and supports this axis 34, thus guaranteeing the deriving movement of the rotor ring 7, further to the mounting and alignment of the entire assembly, which in turn is closed by a lid 36.
• Figure 42 shows the agitator assembly 30, totally mounted and closed with its central axis 34.

Landscapes

• Engineering & Computer Science (AREA)
• Textile Engineering (AREA)
• Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
• Accessory Of Washing/Drying Machine, Commercial Washing/Drying Machine, Other Washing/Drying Machine (AREA)

Applications Claiming Priority (3)

Publications (1)

Family

ID=38122347

Family Applications (1)

Country Status (8)

Families Citing this family (7)

Family Cites Families (3)

• 2001
  • 2001-08-31 BR BRPI0106808-3A patent/BR0106808B1/pt not_active IP Right Cessation
• 2002
  • 2002-08-30 AU AU2002325694A patent/AU2002325694A1/en not_active Abandoned
  • 2002-08-30 EP EP02759948A patent/EP1440201A1/de not_active Withdrawn
  • 2002-08-30 WO PCT/BR2002/000122 patent/WO2003018898A1/en not_active Ceased
  • 2002-08-30 US US10/494,988 patent/US20050005649A1/en not_active Abandoned
  • 2002-08-30 MX MXPA04003033A patent/MXPA04003033A/es active IP Right Grant
  • 2002-08-30 CN CNB028218353A patent/CN1318676C/zh not_active Expired - Fee Related
  • 2002-08-30 CA CA002463934A patent/CA2463934A1/en not_active Abandoned

Non-Patent Citations (1)

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