WO2021031481A1

WO2021031481A1 - Power assembly for electric drying rack and electric drying rack

Info

Publication number: WO2021031481A1
Application number: PCT/CN2019/127257
Authority: WO
Inventors: 孔航君; 黄飞挺; 李雷刚; 王琳; 倪俊
Original assignee: 浙江好易点智能科技有限公司
Priority date: 2019-08-16
Filing date: 2019-12-23
Publication date: 2021-02-25
Also published as: CN110359246B; CN110359246A

Abstract

A power assembly (100) for an electric drying rack and an electric drying rack, comprising a winch (01), a winch base (02) and an elongated motor (3); the elongated motor (3) comprises a body (03) and an output shaft (04); the winch (01) comprises a wire groove section (011) for winding a steel wire rope and a transmission section (012) provided with an external thread; a mounting hole (023) with an internal thread is provided on the winch base (02), the transmission section (012) is inserted into the mounting hole (023), and the external thread of the transmission section (012) is fitted with the internal thread of the mounting hole (023); the winch (01) is sleeved on the body of the elongated motor (3), and the winch (01) can rotate relative to the body (03); the output shaft (04) of the elongated motor (3) is fixed to an inner hole of the transmission section (012) in a snap-fitting manner; the output shaft (04) of the elongated motor (3) drives the winch (01) to rotate, the transmission section (012) is subjected to a thread displacement within the mounting hole (023), and the wire groove section (011) is subjected to a displacement following the transmission section (012). Thus, the space occupied by the motor (3) is saved, avoiding an excessively large volume of the power assembly (100), and a shaft base for standing the winch (01) is omitted, simplifying the internal structure.

Description

The powertrain of the washing machine and the washing machine

Technical field

The present invention relates to a clothes drying machine, in particular to a power assembly used for driving the lifting and lowering of a clothes drying rack. The power assembly is installed in a host component, and the power assembly drives the lifting and lowering of the clothes drying rack.

Background technique

The clothes drying machine includes a main unit installed on the ceiling and a drying rack located below the main unit. The power assembly in the main unit is used for retracting a steel wire rope, and the main unit is connected with the drying rack through the steel wire to realize the lifting of the drying rack. .

For example, the authorized announcement number CN206590699U is the core assembly for the winding mechanism of the electric clothes dryer, which discloses the winding drum, the winding motor and the controller. The authorized announcement number is CN208562903U of the clothes dryer with service life warning, which discloses the winch, winding motor and PCB board.

The authorized announcement number CN206590699U is the movement assembly for the winding mechanism of the electric clothes washing machine. The layout of the overweight protection switch and the resistance protection switch can realize the overweight protection and the resistance protection, which can make the product signal line simple and easy to install. The lowering height of the drying rod can be set arbitrarily, so that users of different heights can easily hang clothes.

The current powertrain layout structure is unreasonable, and there are problems such as large size and insufficient stability.

Summary of the invention

The technical problem to be solved by the present invention is to provide a power assembly for driving the lifting and lowering of a clothes drying rack, and further provide a clothes washing machine with the above-mentioned power assembly.

The technical solution adopted by the present invention to solve the above technical problems is: the power assembly of the clothes washing machine is used to drive the lifting of the clothes washing parts, including a winch, a winch base and a long motor; the long motor includes a body and Output shaft;

The winch includes a wire groove section wound with a steel wire rope and a transmission section provided with an external thread;

The capstan seat is provided with a mounting hole with internal threads, the transmission section is inserted into the mounting hole, and the external thread of the transmission section matches the internal thread of the mounting hole;

The winch is sleeved on the body of the long motor and the winch can rotate relative to the body; the output shaft of the long motor is clamped and fixed with the inner hole of the transmission section; the output shaft of the long motor Drive the winch to rotate, the transmission section produces thread displacement in the mounting hole, and the wire groove section follows the transmission section to produce displacement.

The further optimized solution of the present invention is: the outer wall of the output shaft of the long motor is locked and fixed with the inner hole wall of the transmission section, or the output shaft of the long motor passes through a winch shaft and the inner hole of the transmission section The card is fixed.

A further optimized solution of the present invention is that the winch shaft is made of aluminum alloy, and the winch shaft penetrates the transmission section.

A further optimized solution of the present invention is that: the two ends of the wire groove section are respectively provided with a first stop portion and a second stop portion, and the second stop portion separates the wire groove section from the transmission section.

A further optimized solution of the present invention is that: the wire groove section is provided with a first wire groove for winding the first steel wire rope and a second wire groove for winding the second steel wire rope in parallel.

The further optimized solution of the present invention includes a base plate, the winch base is fixed on the base plate, and the winch base includes a circular part with a mounting hole in the center and a first fixing ear connected to the base plate.

A further optimized solution of the present invention is that the rear end of the fuselage is sleeved with a fixing sleeve that wraps the outer wall of the fuselage, and the front side of the fixing sleeve is integrally formed with a second fixing ear for connecting to the base plate.

A further optimized solution of the present invention is that: a first fixing seat and a second fixing seat adapted to the two fixing ears are formed on the substrate, and the first fixing seat and the second fixing seat are respectively provided at the two side edges of the substrate , The rear section of the fuselage is beyond the edge of the base plate.

A further optimized solution of the present invention is that: the outer side of the winch is provided with a wire crimping assembly that can compress the steel wire rope.

Another subject of the present invention is: a clothes washing machine, including a host component, a clothes drying component and the power assembly, the power assembly is installed in the host component, the power assembly leads The steel wire rope is connected to the clothes drying part.

Compared with the prior art, the advantage of the present invention is that the winch is sleeved on the body of the long motor and the winch can rotate relative to the body, and the output shaft of the long motor is clamped and fixed to the inner hole of the transmission section at the far end of the winch. , Only set up the winch seat on one side of the transmission section to support the winch and provide the winch thread to move, thus saving the space occupied by the motor, avoiding the powertrain from being too large, reducing the shaft seat for erecting the winch, and simplifying the internal structure.

Description of the drawings

The present invention will be further described in detail below in conjunction with the accompanying drawings and preferred embodiments, but those skilled in the art will appreciate that these drawings are drawn only for the purpose of explaining the preferred embodiments, and therefore should not be used as a reference to the present invention. Limitation of the scope of the invention. In addition, unless otherwise specified, the drawings merely schematically represent the composition or configuration of the described objects and may include exaggerated displays, and the drawings are not necessarily drawn to scale.

Figure 1 is a perspective view of a preferred embodiment of the present invention;

Figure 2 is an exploded view of a preferred embodiment of the present invention;

Figure 3 is a first internal schematic diagram of a preferred embodiment of the present invention;

Figure 4 is a second internal schematic diagram of a preferred embodiment of the present invention;

Figure 5 is a third internal schematic diagram of a preferred embodiment of the present invention;

Figure 6 is an internal exploded view of a preferred embodiment of the present invention;

Fig. 7 is a first schematic diagram of the interior (not showing the pressing part) of a preferred embodiment of the present invention;

Fig. 8 is a second schematic diagram of the interior (not showing the pressing part) of a preferred embodiment of the present invention;

Figure 9 is an exploded view of a long motor according to a preferred embodiment of the present invention;

Figure 10 is a schematic diagram of a winch base of a preferred embodiment of the present invention;

11 is a schematic diagram of a wire wheel assembly and a descending resistance protection mechanism according to a preferred embodiment of the present invention;

Figure 12 is an enlarged schematic diagram of a wire wheel assembly according to a preferred embodiment of the present invention.

detailed description

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Those skilled in the art will appreciate that these descriptions are only descriptive and exemplary, and should not be construed as limiting the protection scope of the present invention.

It should be noted that similar reference numerals indicate similar items in the following drawings. Therefore, once a certain item is defined in one drawing, it may not be further defined and explained in subsequent drawings.

In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", etc. are based on the orientation or positional relationship shown in the drawings, or the The orientation or positional relationship usually placed in the use of the invention product is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, therefore It cannot be understood as a limitation to the present invention. In addition, the terms "first", "second", etc. are only used for distinguishing description, and cannot be understood as indicating or implying relative importance.

In the description of the present invention, it should also be noted that, unless otherwise clearly specified and limited, the terms "installation" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection, or Integrally connected; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the internal communication between two components. For those of ordinary skill in the art, the specific meaning of the above-mentioned terms in the present invention can be understood in specific situations.

A smart clothes washing machine includes a host part and a clothes drying part fixedly installed on the ceiling of an indoor balcony. The clothes drying part is connected with the host part through steel wire ropes respectively arranged at both ends of the host part and hung below the host part.

As shown in FIG. 1, the mainframe components include a mainframe casing and a powertrain 100 fixedly mounted on the inner surface of the upper bottom plate of the mainframe casing.

As shown in Figures 2-4, the layout structure of the power assembly 100 of the clothes dryer specifically includes a base plate 1 and a winch assembly 2, a winding motor 3, a wire wheel assembly 4 and a control board arranged with electronic components on the base plate 1. 5. The winch assembly 2 is located on one side of the square base plate 1, the wire wheel assembly 4 is arranged adjacent to the winch assembly 2, and the control board 5 is arranged on the other side of the wire wheel assembly 4. The base plate 1 of the powertrain 100 is preferably a plastic base plate, so that the weight of the host component is lighter. The winding motor 3 drives the winch assembly 2 to retract and unwind the steel wire rope, so as to realize the lifting function of the clothes drying parts.

As shown in Figures 2 and 4, the winch assembly 2 includes a winch 01 and a winch seat 02. The base plate 1 is provided with a housing 7 which closes the winch 01.

Among them, as shown in Figures 4-6, the winch 01 is a horizontally placed cylindrical component, including a wire groove section 011 for winding a steel wire rope and a transmission section 012 with external threads. The outer side of the winch 01 is provided with a wire crimping assembly 6 that can compress the steel wire rope. In addition, the winding motor 3 is located at one end of the wire groove section 011 of the winch 01, and is positioned to be connected to the long motor 3 of the winch 01, and the central axis coincides with the central axis of the winch 01.

And, as shown in Figures 2-6 and 10, the winch seat 02 is set at one end of the transmission section 012 of the winch 01. The winch seat 02 is a vertical frame fixed on the base plate 1, and includes a circle with a mounting hole 023 in the center. The shaped member 021 and the first fixing ear 022 connected to the substrate 1. The mounting hole 023 has an internal thread that matches the external thread of the transmission section 012. The transmission section 012 of the winch 01 is inserted into the mounting hole 023 and is supported by the winch seat 02. When the long motor 3 drives the winch 01 to rotate, the transmission section 012 produces a thread displacement in the mounting hole 023.

As shown in Figures 2-6, 9, and 10, the long motor 3 includes a body 03 and an output shaft 04. The winch 01 is hollow, so that the winch 01 is sleeved on the body 03 of the long motor 3, and the winch 01 can rotate relative to the body 03; and the output shaft 04 of the long motor 3 is clamped with the inner hole of the transmission section 012 Fixed, so that the output shaft 04 of the long motor 3 can drive the winch 01 to rotate. Specifically, preferably, the motor output shaft 04 is sheathed with a winch shaft 05, and the winch shaft 05 and the output shaft 04 are connected by a fixed pin 06. The winch shaft 05 is made of aluminum alloy. The winch shaft 05 penetrates from the cavity of the winch 01 and penetrates the transmission section 012. The output shaft 04 of the long motor 3 is clamped and fixed to the inner hole of the transmission section 012 through the winch shaft 05. The outer wall of the winch shaft 05 has a plane that matches the inner plane of the inner hole of the transmission section 012, so that the winch shaft 05 and the inner hole of the transmission section 012 are fixed in the direction, but the axial displacement can occur, so that when the output shaft 04 drives the winch shaft 05 When rotating, the transmission section 012 rotates synchronously with it. The transmission section 012 produces a thread displacement in the mounting hole 023, and the transmission section 012 performs axial displacement relative to the output shaft 04, so that the groove section 011 follows the transmission section 012 to achieve axial displacement .

It should be understood that the winch seat 02 is only set up on one side of the transfer section 012 to support the winch 01 and for the threaded movement of the winch 01. The body 03 of the long motor 3 passes through the winch 01 to provide another support point for the winch 01. In this way, the space occupation of the motor 3 is omitted, the power assembly 100 is prevented from being too large, the shaft seat of the winch 01 is reduced, and the internal structure is simplified.

Further, the rear end of the fuselage 03 is sleeved with a fixing sleeve 031 that wraps the outer wall of the fuselage 03, and the front side of the fixing sleeve 031 is integrally formed with a second fixing ear 032 for connecting to the base plate 1. A fixing seat for fixing the winch assembly 2 is formed on the base plate 1, including a first fixing seat 002 and a second fixing seat 003 adapted to the first fixing ear 022 of the winch seat 02 and the second fixing ear 032 of the fixing sleeve 031. The fixing seat 002 and the second fixing seat 003 are respectively provided at the two side edges of the base plate 1, and the rear section of the body 03 extends beyond the edge of the base plate 1, that is, a part of the winch assembly 2 protrudes from the edge of the plastic base plate 1.

As shown in FIG. 5, the two ends of the wire groove section 011 of the winch 01 are respectively provided with a first stop portion 013 and a second stop portion 014, and the second stop portion 014 separates the wire groove section 011 from the transmission section 012. The wire groove section 011 is provided with a first wire groove for winding the first wire rope 8 and a second wire groove for winding the second wire rope 9 in parallel.

As shown in Figures 7 and 8, the first wire rope 8 and the second wire rope 9 are steered by the wire wheel assembly 4 arranged on the side of the winch assembly 2, and extend to the two sides of the plastic substrate 1, respectively, from the main unit The two sides are led downwards and connected with the clothes drying parts to realize the traction of the clothes drying parts.

As shown in Figures 2, 7, 8, 11, and 12, the wire wheel assembly 4 includes two wheel seats 07 with a wire wheel 071 built in. The two wheel seats 07 are respectively mounted on the plastic substrate 1 and two downwardly recessed In the positioning chute 08, the wheel base 07 can slide linearly in the direction of the positioning chute 08 close to or away from the winch assembly 2. The positioning chute 08 is integrally formed with the base plate 1, and the wheel base 07 is installed in a sinking manner. It saves cost and space.

At the same time, the plastic substrate 1 is also provided with a pressing part 10 which is located above the wheel base 07 to confine the wheel base 07 in the positioning chute 08. As a result, the wheel seat 07 is not easy to move up and down to tilt in the positioning chute 08, and the linear movement is more stable. Preferably, the lower pressing portion 10 is a lower pressing plate, and the lower pressing plate encloses the wheel seat 07 in the positioning chute 08.

Specifically, the wheel base 07 includes a wheel frame 072. The center of the wheel frame 072 has a cavity for accommodating the wire wheel 071. The first wire rope 8 and the second wire rope 9 are led out from the winch 01, bypass the wire wheel 071, and make a 90° turn. The wire wheel 071 is provided with a winding groove in which the wire rope 8 is wound to avoid slipping.

At least one of the upper and lower surfaces of the wheel frame 072 is provided with a limiting protrusion 004, and at least one of the lower surface of the lower pressing portion 10 and the bottom of the positioning chute 08 is provided with a concave guide groove 006 that matches the limiting

protrusion

004, 007. The

concave guide grooves

006 and 007 reduce the path deviation and swing when the wheel frame 072 moves linearly, so that it slides stably and linearly along the set track, and the moving direction is perpendicular to the moving direction of the winch 01.

Preferably, as shown in Figures 2, 11, and 12, the center of the upper surface of the wheel frame 072 is provided with a limiting protrusion 004, and the center of the lower surface of the wheel frame 072 is also provided with a limiting protrusion (not shown in the figure); and Correspondingly, the lower surface of the lower pressing part 10 and the upper surface of the bottom of the positioning chute 08 are provided with parallel elongated or elliptical upper concave guide grooves 006 and lower concave guide grooves 007, wherein the upper concave The guide groove 006 may be a through hole.

As shown in Figures 1, 2, and 11, the plastic substrate 1 beside the wire wheel assembly 4 is provided with a groove 09, and the control board 5 with electronic components arranged to drive the winch assembly 2 to operate is sunkly installed in the groove 09 Inside and closed by a cover 11 on the plastic substrate 1.

As shown in Figures 6 and 11, the powertrain 100 is also provided with a trigger switch, which combines the linearly sliding wire wheel assembly 4 and the steel wire to form a descending resistance protection mechanism of the clothes dryer. Because the wheel base 07 is set in the positioning chute 08, its sliding path is limited by the positioning chute 08, and the

concave guide grooves

006 and 007 further guide it in the direction, the wheel base 07 slides smoothly and the path is stable, thus The matching trigger switch can trigger the signal more timely and accurately to stop the winding motor 3 from working.

Specifically, the side of the wheel frame 072 close to the winch 01 is provided with a compression spring 12, and the compression spring 12 is a cylindrical compression spring with a certain amount of compression. Under normal conditions, the wire rope pulls the clothes-drying parts and is in a taut state. The wire rope is close to the wire wheel 071, which has a force on the wire wheel 071 in the direction of winch 01. Under the action of this force, the wheel seat 07 is close to the winch. Pulling in the direction 01, the wheel seat 07 is on the pressure spring 12; the pressure spring 12 at this moment produces elastic deformation, and its force on the wheel seat 07 is offset by the force of the wire rope on the wheel seat 07 through the guide wheel, but its storage There is a resilience to restore deformation. When the clothes drying machine descends and encounters resistance, the pulling force of the clothes drying parts on the wire rope disappears, the wire rope is in a relaxed state, and no force is applied to the wire wheel 071, so that the load of the wire wheel 071 on the pressure spring 12 disappears, and the pressure spring 12 resumes its deformation. , The resilience stored by its deformation makes the wheel base 07 slip away from the winch 01 in the opposite direction.

Further, the trigger switch is set on the rear side of the wheel base 07. When the washing machine falls and meets resistance, when the wheel base 07 moves away from the winch 01 under the resilient force of the pressure spring 12, the edge of the wheel base 07 triggers The switch is triggered to send a signal to the winding motor 3 to stop running.

Preferably, the trigger switch is a separate Hall switch, the magnetic unit 131 in the Hall switch is arranged on the outer surface of the rear side of the wheel base 07, and the Hall sensor element 132 of the Hall switch is arranged on the control circuit board close to The edge position of the wheel base 07 is opposite to the magnetic unit 131, and the Hall sensing element 132 detects the displacement of the magnetic unit 131 and sends a signal to the control board 5 to prompt the winding motor 3 to stop running.

More specifically, the magnetic unit 131 in the Hall switch is fixed to a fixing frame 073 protruding backward on the rear side of the wheel frame 072.

In addition, the trigger switch can also be a mechanical micro switch, which is arranged on the opposite control circuit board behind the wheel base 07; when the wire rope is loose, the wheel base 07 moves away from the winch 01, and the moved wheel The edge of the seat 07 or the trigger provided on the back side touches the micro switch, and then sends a signal to the control circuit board to prompt the winding motor 3 to stop running, which plays a role in protecting the safety of the user.

The powertrain and the clothes drying machine of the clothes drying machine provided by the present invention are described above in detail. In this article, specific examples are used to explain the principle and implementation of the present invention. The description of the above examples is only used to help understanding The invention and its core idea. It should be pointed out that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and modifications can be made to the present invention, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

Claims

The power assembly of the clothes washing machine is used to drive the lifting of the clothes washing parts, and is characterized by comprising a winch, a winch base and a long motor; the long motor includes a body and an output shaft;

The winch includes a wire groove section wound with a steel wire rope and a transmission section provided with an external thread;

The capstan seat is provided with a mounting hole with internal threads, the transmission section is inserted into the mounting hole, and the external thread of the transmission section matches the internal thread of the mounting hole;

The winch is sleeved on the body of the long motor and the winch can rotate relative to the body; the output shaft of the long motor is clamped and fixed with the inner hole of the transmission section; the output shaft of the long motor Drive the winch to rotate, the transmission section produces thread displacement in the mounting hole, and the wire groove section follows the transmission section to produce displacement.
The power assembly of a clothes washing machine according to claim 1, characterized in that the outer wall of the output shaft of the elongated motor is locked and fixed with the inner wall of the transmission section, or the output shaft of the elongated motor A winch shaft is clamped and fixed with the inner hole of the transmission section.
The power assembly of a clothes washing machine according to claim 2, wherein the winch shaft is made of aluminum alloy, and the winch shaft penetrates the transmission section.
The power assembly of a clothes washing machine according to claim 2, characterized in that the two ends of the slot section are respectively provided with a first stop and a second stop, and the second stop connects the slot section with The transmission section is separated.
The power assembly of a clothes washing machine according to claim 1, wherein the slot section is provided with a first slot for winding the first wire rope and a second slot for winding the second wire rope in parallel .
The power assembly of a clothes washing machine according to claim 1, characterized by comprising a base plate, the winch base is fixed on the base plate, the winch base includes a circular part with a mounting hole in the center and connected to the base plate The first fixed ear.
The power assembly of a clothes washing machine according to claim 6, characterized in that the rear end of the fuselage is sleeved with a fixed sleeve that wraps the outer wall of the fuselage, and the front side of the fixed sleeve is integrally formed for connecting to The second fixed ear of the substrate.
The power assembly of a clothes washing machine according to claim 7, wherein a first fixing seat and a second fixing seat adapted to two fixing ears are formed on the base plate, and the first fixing seat and the second fixing seat The seats are respectively arranged at the edges of both sides of the base plate, and the rear section of the fuselage extends beyond the edge of the base plate.
The power assembly of a clothes washing machine according to claim 1, characterized in that the outer side of the winch is provided with a crimping assembly capable of compressing the steel wire rope.
A clothes washing machine, comprising a host component, a clothes drying component, and the power assembly according to any one of claims 1-9, the power assembly is installed in the host component, and the power assembly leads The steel wire rope is connected to the clothes drying part.