CN211115374U

CN211115374U - Rotary actuator assembly and household appliance with same

Info

Publication number: CN211115374U
Application number: CN201921889299.5U
Authority: CN
Inventors: 黄建昌; 芮正国; 史海坤
Original assignee: Oechsler Plastic Products Taicang Co Ltd
Current assignee: Oechsler Plastic Products Taicang Co Ltd
Priority date: 2019-11-05
Filing date: 2019-11-05
Publication date: 2020-07-28
Anticipated expiration: 2029-11-05

Abstract

The utility model provides a rotary actuator subassembly and have its domestic appliance. The rotary actuator assembly comprises an object to be rotated and a rotary actuator matched with the object to be rotated. The rotary actuator comprises an output shaft and a driving mechanism for driving the output shaft to rotate; the object to be rotated is provided with a shaft hole matched with the output shaft. The output shaft and the shaft hole of the object to be rotated are internally provided with a driving structure and a butt joint structure which are matched along the circumferential direction, and a butting surface and a butt joint surface which are used for pushing the object to be rotated to move when the output shaft rotates are formed between the driving structure and the butt joint structure. And a rotating space for manually rotating the object to be rotated is formed between the driving structure and the butt joint structure.

Description

Rotary actuator assembly and household appliance with same

Technical Field

The utility model relates to an automatic switch door technical field especially relates to a rotary actuator subassembly that can realize manual mode switching and have its domestic appliance.

Background

The intelligent development of the household appliance is matched with the scientific, technological and intelligent operation requirements of consumers; particularly, in the life of people, when people hold articles with two hands at the same time and want to open the door, the articles must be put down first, and the use is very inconvenient. In order to meet the requirements, the movable doors of household appliances and the like are gradually designed with actuators for automatically opening and closing the doors. However, the conventional actuator arrangement for automatically opening and closing the door usually does not have a manual opening and closing function, and particularly, when the automatic opening and closing actuator fails, it is difficult to perform related operations before maintenance.

Therefore, there is a need for a rotary actuator assembly and a household appliance that can solve the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model provides a can realize manual mode switching's rotary actuator subassembly and have its domestic appliance.

In order to achieve the above object, the present invention provides the following technical solutions: a rotary actuator assembly capable of realizing manual-automatic mode switching comprises a to-be-rotated object and a rotary actuator matched with the to-be-rotated object, wherein the rotary actuator comprises an output shaft and a driving mechanism for driving the output shaft to rotate, the to-be-rotated object is provided with a shaft hole matched with the output shaft, a driving structure and a butt joint structure matched along the circumferential direction are arranged in the shaft hole of the output shaft and the shaft hole of the to-be-rotated object, and a butt surface and a butt joint surface for pushing the to-be-rotated object to move when the output shaft rotates are formed between the driving structure and the butt joint structure; the total length of the driving structure and the butt joint structure along the circumferential direction of the output shaft is smaller than the circumference of the circumferential surface where the driving structure and the butt joint structure are located, so that a rotating space for manually rotating an object to be rotated is formed between the driving structure and the butt joint structure.

As the utility model discloses a further improvement, support the face including forming at the first face and the second of supporting of drive structure along the ascending both ends of circumferencial direction, the face is including forming at the first butt joint face and the second butt joint face at butt joint structure along the circumferencial direction upward both ends, first butt joint face sets up with first butt joint face is relative, the second is supported and is set up with second butt joint face is relative.

As a further improvement of the present invention, in the initial state, the first abutting surface and the first abutting surface are abutted and disposed, and the rotation space is formed between the second abutting surface and the second abutting surface.

As a further improvement of the present invention, the length of the driving structure and the length of the butt joint structure along the circumferential direction of the output shaft are the same and are respectively one third of the total length of the circumferential direction.

As a further improvement of the present invention, the output shaft is a hollow shaft, the driving structure is formed at one end of the output shaft, which is away from the driving mechanism, and is formed after cutting a part of the circumferential wall of the hollow shaft.

As a further improvement, the butt joint structure is protruded from the inner wall of the shaft hole to form an arc shape, and the output shaft is arranged in the extending direction of the driving structure along the circumferential direction of the output shaft.

As a further improvement, the output shaft has a main body and a sleeve fixed on the transmission gear outside the main body, the driving mechanism has a driving motor and a speed reducing mechanism connected between the driving motor and the transmission gear.

As a further improvement, the utility model also comprises a micro switch, still the cover is equipped with the axle sleeve on the output shaft, the axle sleeve sets up in drive gear and treats between the rotating object to be provided with in the outside of axle sleeve with micro switch matched with switch position.

As a further improvement of the utility model, the abutting surface and the butt joint surface extend along the axial direction of the output shaft.

In order to achieve the above object, the utility model also provides a domestic appliance with above-mentioned rotary actuator subassembly, domestic appliance includes the host computer body and controlling means, treat that the rotating object is for passing through rotary actuator with host computer body swivelling joint's the door body, actuating mechanism and controlling means electric connection.

Compared with the prior art, the beneficial effects of the utility model reside in that: through set up above-mentioned drive structure and butt-joint structural between output shaft and complex shaft hole for no matter be automatic mode or manual mode, need not to switch and can directly realize, easy operation is convenient, and overall structure sets up simply, only needs to carry out simple transformation to the output shaft and the cooperation shaft hole of the rotary actuator of current automatic switch door and can realize, and the cost is lower and the practicality is wide.

Drawings

Fig. 1 is a perspective view of a partial structure of a household appliance according to a preferred embodiment of the present invention.

Fig. 2 is a perspective view of the household appliance of fig. 1 with the housing of the rotary actuator removed.

Fig. 3 is an enlarged schematic view of a circled portion in fig. 2.

Fig. 4 is a partially exploded perspective view of the household appliance shown in fig. 1 with the rotary actuator removed from the structure except for the output shaft.

Fig. 5 is an enlarged schematic view of the circled portion in fig. 4.

Fig. 6 is a perspective view of an output shaft of the rotary actuator according to the present invention.

Fig. 7 is a schematic plan view of the shaft hole of the door body according to the present invention.

Fig. 8 is a schematic view of the matching state of the rotary actuator and the shaft hole when the middle door body is in the initial closing state.

Fig. 9 is a schematic view of the matching state of the rotary actuator and the shaft hole in the opening process of the middle door body of the present invention.

Fig. 10 is a schematic view of the operation state of the middle door body in the reset process of the rotary actuator after the middle door body is opened.

Fig. 11 is a matching state diagram of the rotation actuator and the shaft hole when the door body of the present invention is reset to the initial state after being opened.

Fig. 12 is a schematic view of the matching state between the rotary actuator and the shaft hole of the middle door body in the closing process of the present invention.

Fig. 13 is a schematic view of the operation state of the middle door body in the reset process of the rotary actuator after closing.

Fig. 14 is a matching state diagram of the rotary actuator and the shaft hole when the door body of the present invention is reset to the initial state after being closed.

Detailed Description

In order to make the technical solutions in the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall belong to the protection scope of the present invention.

The utility model relates to a can realize manual mode switching's rotary actuator subassembly 100, this rotary actuator subassembly 100 is applicable to all kinds of domestic appliance, for example on electrical equipment such as refrigerator, freezer, sterilizer. Thus, the present invention may also relate to a household appliance 800 having the rotary actuator assembly 100 described above.

The rotary actuator assembly 100 includes an object to be rotated and a rotary actuator 1 disposed in cooperation with the object to be rotated.

Referring to fig. 1 to 3, a household electrical appliance 800 of the present invention is a refrigerator, which has a main body 801, a door 802 rotatably connected to the main body 801, and a control device (not shown), wherein the door 802 is the object to be rotated; the following description will be made in detail with reference to the door 802 as a whole as a preferred exemplary embodiment of the present invention. Of course, the object to be rotated may also be other door bodies or cover bodies and the like which need to be operated in a manual-automatic mode.

As shown in fig. 4 to 14, in general terms, the rotary actuator 1 includes an output shaft 11 and a driving mechanism 12 for driving the output shaft 11 to rotate. The door body 802 is provided with a shaft hole 8021 matched with the output shaft 11. A driving structure 111 and a butt-joint structure 8022 which are matched along the circumferential direction are arranged in the output shaft 11 and the shaft hole 8021 of the door body 802, and a butting surface which are used for pushing the door body 802 to move when the output shaft 11 rotates are formed between the driving structure 111 and the butt-joint structure 8022. The total length of the driving structure 111 and the butt joint structure 8022 along the circumferential direction of the output shaft 11 is smaller than the circumferential length of the circumferential surface where the driving structure 111 and the butt joint structure 8022 are located, so that a rotating space for manually operating the rotating door body 802 is formed between the driving structure 111 and the butt joint structure 8022.

Therefore, when automatic door opening and closing operation is required, the output shaft 11 of the rotary actuator 1 can be driven to rotate through the driving mechanism 12, the door body is opened through the matching of the driving structure and the butt joint structure, and the door body rotates reversely when being closed; when the door needs to be opened or closed manually, the door 802 can be rotated manually directly, and the door 802 drives the butt-joint structure 8022 in the shaft hole 8021 to move in the rotating space. Therefore, the utility model discloses a rotary actuator subassembly 100 no matter is automatic mode or manual mode, need not to switch and can directly realize, easy operation is convenient, and overall structure sets up simply, only needs to carry out simple transformation to current automatic switch door's rotary actuator's output shaft and cooperation shaft hole and can realize that the cost is lower and the practicality is wide.

Specifically, as shown in fig. 1 to 3, the rotary actuator 1 is fixed on a main body 801 of the household appliance 800, and an output end of the output shaft 11 extends toward the door body 802. The driving mechanism 12 is electrically connected to the control device.

The rotary actuator 1 has a housing 10, and the drive mechanism 12 is provided in the housing 10, and has a drive motor 121 and a reduction mechanism 122 connected between the drive motor 121 and an output shaft 11. In order to reduce the volume and height of the rotary actuator 1, the driving motor 121 is horizontally disposed in the housing 10. The speed reducing mechanism 122 is formed by mutually matching and driving a plurality of gears.

The output shaft 11 has a shaft main body 12 and a transmission gear 13 fixed to the outside of the shaft main body 12. The transmission gear 13 is fixed to the upper end of the shaft main body 12 and extends into the housing 10. The transmission gear 13 is engaged with the output gear of the speed reducing mechanism 122 to realize the driving connection with the driving mechanism 12.

As shown in fig. 4 to 6, in the present embodiment, the output shaft 11 is configured as a hollow rotating shaft, and the driving structure 111 is formed at an end of the output shaft 11 away from the driving mechanism 12, and is formed by cutting a part of a circumferential wall of the hollow rotating shaft 111. Of course, the output shaft 11 may also be a solid rotating shaft, and in this case, the driving structure 111 may be formed to protrude outward from an outer wall surface of the solid rotating shaft; of course, the end of the solid shaft away from the driving mechanism 12 may be cut, so that the remaining portion after cutting forms the driving structure 111, and the object of the present invention can also be achieved.

Correspondingly, as shown in fig. 4 and 5, the butt-joint structure 8022 protrudes from the inner wall of the shaft hole 8021 to form an arc shape, and is disposed in the extending direction of the driving structure 111 along the circumferential direction of the output shaft 11, so that when the driving mechanism 12 drives the output shaft 11 to rotate, the butt-joint structure 8022 can be pushed to drive the door body 802 to rotate along the circumferential direction of the output shaft 11.

The lengths of the driving structure 111 and the docking structure 8022 along the circumferential direction may be set according to the force demand, the opening angle of the door 802, and the like. In the preferred embodiment, the lengths of the driving structure 111 and the docking structure 8022 along the circumferential direction of the output shaft 11 are the same and are respectively one third of the total length along the circumferential direction, and at this time, the opening angle of the door body 802 is set to 120 degrees.

Further, the aforesaid abutting surface of the driving structure 111 for cooperating with the abutting structure 8022 includes a first abutting surface 1111 and a second abutting surface 1112 formed at two ends of the driving structure 111 along the circumferential direction. The abutting surface of the abutting structure 8022 includes a first abutting surface 8023 and a second abutting surface 8024 formed at both ends of the abutting structure 8022 in the circumferential direction. The first abutting surface 1111 is disposed opposite to the first abutting surface 8023, and the second abutting surface 1112 is disposed opposite to the second abutting surface 8024.

As shown in fig. 3 to 7, the rotary actuator 1 is preferably configured to: in the initial state, the first abutting surface 1111 and the first abutting surface 8023 are abutted, and at this time, the rotation space is formed between the second abutting surface 1112 and the second abutting surface 8024. The included angle between the second abutting surface 1112 and the second abutting surface 8024 is the rotation or opening angle of the door body 802.

Further preferably, in the present embodiment, the abutting surface and the abutting surface both extend along the axial direction of the output shaft 11, and both are located in the radial direction of the output shaft 11 and the shaft hole 8021. Therefore, the installation is convenient, and when the driving rotation is ensured, the two can not generate relative displacement along the axial direction of the output shaft 11.

In addition, referring to fig. 3, in order to facilitate the monitoring of the rotation position of the output shaft 11, a micro switch 14 is further disposed in the rotary actuator assembly 100 according to the preferred embodiment of the present invention. The microswitch 14 is fixed in the housing 10 at a position adjacent to the output shaft 11. Further, a shaft sleeve 15 is further sleeved on the portion, located in the casing 10, of the output shaft 11, the shaft sleeve 15 is also located between the transmission gear 13 and the door body 802, and a switch position matched with the micro switch 14 is arranged on the outer side of the shaft sleeve 15.

With reference to fig. 1 to 14 and the above description of the arrangement of the household appliance 100 and the rotary actuator assembly 100 thereof, the present invention further relates to a control method of a household appliance, comprising the following steps:

when receiving an automatic door opening signal, controlling the driving mechanism 12 to drive the output shaft 11 to rotate, so as to push the butt-joint structure 8022 through the driving structure 111 and further push the door body 802 to rotate and open, referring to the working process shown in fig. 8 and 9;

after the door body 802 rotates to the position, the driving mechanism 12 is controlled to drive the output shaft 11 to rotate reversely and reset, which is shown in fig. 10 and 11; the reverse rotation is a rotation direction compared with the rotation direction when the door body is opened;

when a door closing signal is received, the driving mechanism 12 is controlled to drive the output shaft 11 to rotate reversely, so as to push the docking structure 8022 through the driving structure 111 and further push the door body 802 to rotate and close, as shown in fig. 12; the reverse rotation is a rotation direction compared with the rotation direction when the door body is opened;

after the door body 802 rotates to the position, the driving mechanism 12 is controlled to drive the output shaft 11 to rotate reversely and reset, as shown in fig. 13 and 14. Of course, the reverse rotation is the rotation direction when the door body is closed.

Specifically, when the door body 802 is opened, the working current of the driving mechanism 12 is obtained; after the door body 802 rotates to the position, the resistance of the outward rotation of the door body 802 is increased, the working current of the driving mechanism 12 is correspondingly increased, and the working current is greater than the preset set current, so that the door body 802 is judged to rotate and open to the position when the working current is greater than the preset current. At this time, the driving mechanism 12 can be controlled to rotate reversely and reset.

As previously mentioned, the rotary actuator 1 is preferably configured to: in an initial state, the first abutting surface 1111 and the first abutting surface 8023 are abutted, and at this time, when the driving mechanism 12 drives the output shaft 11 to rotate, idle rotation is not generated, and an acting force is directly applied to the abutting structure 8022 of the door body 802.

In addition, in the present embodiment, the lengths of the driving structure 111 and the docking structure 8022 along the circumferential direction of the output shaft 11 are set to be the same and are respectively one third of the total length in the circumferential direction, and the opening angle of the door body 802 is set to be 120 degrees; at this time, after the door body 802 is opened, the driving mechanism 12 rotates reversely and resets, so that the second abutting surface 1112 and the second abutting surface 8024 abut against each other, and further, when a door closing signal is received, the driving mechanism 12 does not idle when driving the output shaft 11 to rotate reversely, and directly acts on the second abutting surface 8024 of the door body 802. In addition, the structure can also ensure that the door can be closed manually after the door is opened automatically.

Furthermore, the reset determination of the driving mechanism is determined by the switch positions of the microswitch 14 and the output shaft 11, and after the control device receives the reset signal of the microswitch 14, the driving mechanism 12 is determined to reach the initial position, and the driving mechanism 12 is controlled to stop working at this time.

In addition, in the above steps, when the door body 802 is closed, the working current of the driving mechanism 12 is obtained in real time; after the door body 802 rotates to the position, the resistance of the door body 802 to the rotation of the main body 801 is increased, the working current of the driving mechanism 12 is correspondingly increased, and at the moment, the working current is greater than the preset set current, so that when the working current is greater than the preset working current value I, it can be determined that the door body 802 rotates to close in place. At this time, the driving mechanism 12 can be controlled to rotate reversely and reset.

Furthermore, the control method of the utility model can also include anti-pinch or anti-collision judgment to prevent operators from being pinched by the door body or being injured by collision; specifically, in the process of opening or closing the door body 802, when resistance is encountered, the working current of the driving mechanism 12 is increased, and when the working current is greater than the set current, the driving mechanism 12 is controlled to rotate reversely at the moment in addition to the door opening or closing position. Namely, the driving mechanism 12 is controlled to rotate reversely no matter the door is opened in place, closed in place or increased in current due to resistance.

However, when the micro switch 14 is received in the reverse rotation or reset, the driving mechanism 12 is controlled to stop rotating.

To sum up, the utility model discloses rotary actuator subassembly 100 and have its domestic appliance 800 is through setting up above-mentioned drive structure 111 and butt-joint structural 8022 between output shaft 11 and complex shaft hole 8021 for no matter be automatic mode or manual mode, need not to switch and can directly realize, easy operation is convenient, and overall structure sets up simply, only needs to carry out simple transformation to the rotary actuator's of current automatic switch door output shaft and cooperation shaft hole and can realize, and the cost is lower and the practicality is wide.

It should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art will be able to make the description as a whole, and the embodiments may be appropriately combined to form other embodiments as will be appreciated by those skilled in the art.

The above detailed description of a series of embodiments is only for the purpose of illustration, and is not intended to limit the scope of the invention, which is intended to include all equivalent embodiments or modifications that do not depart from the spirit of the invention.

Claims

1. The utility model provides a can realize rotatory executor subassembly of manual mode switching, includes to wait the rotating object and with the rotatory executor that waits the rotating object cooperation to set up, rotatory executor includes output shaft, drive output shaft pivoted actuating mechanism, wait the rotating object be equipped with output shaft matched with shaft hole, its characterized in that:

a driving structure and a butt joint structure which are matched along the circumferential direction are arranged in the shaft holes of the output shaft and the object to be rotated, and a butting surface and a butt joint surface which are used for pushing the object to be rotated to move when the output shaft rotates are formed between the driving structure and the butt joint structure;

the total length of the driving structure and the butt joint structure along the circumferential direction of the output shaft is smaller than the circumference of the circumferential surface where the driving structure and the butt joint structure are located, so that a rotating space for manually rotating an object to be rotated is formed between the driving structure and the butt joint structure.

2. The rotary actuator assembly of claim 1, wherein: the abutting surfaces comprise a first abutting surface and a second abutting surface which are formed at two ends of the driving structure in the circumferential direction, the abutting surfaces comprise a first abutting surface and a second abutting surface which are formed at two ends of the abutting structure in the circumferential direction, the first abutting surface and the first abutting surface are arranged oppositely, and the second abutting surface are arranged oppositely.

3. The rotary actuator assembly of claim 2, wherein: in an initial state, the first abutting surface and the first abutting surface are abutted, and the rotating space is formed between the second abutting surface and the second abutting surface.

4. The rotary actuator assembly of claim 1, wherein: the length of the driving structure and the length of the butting structure in the circumferential direction of the output shaft are the same and are respectively one third of the total length in the circumferential direction.

5. The rotary actuator assembly of claim 1, wherein: the output shaft is a hollow rotating shaft, the driving structure is formed at one end of the output shaft, which is far away from the driving mechanism, and the driving structure is formed by cutting one part of the circumferential wall of the hollow rotating shaft.

6. The rotary actuator assembly of claim 5, wherein: the butt joint structure is protruded from the inner wall of the shaft hole to form an arc shape and is arranged in the extending direction of the driving structure along the circumferential direction of the output shaft.

7. The rotary actuator assembly of claim 1, wherein: the output shaft is provided with a shaft main body and a transmission gear sleeved and fixed on the outer side of the shaft main body, and the driving mechanism is provided with a driving motor and a speed reducing mechanism connected between the driving motor and the transmission gear.

8. The rotary actuator assembly of claim 7, wherein: the output shaft is further sleeved with a shaft sleeve, the shaft sleeve is arranged between the transmission gear and the object to be rotated, and a switch position matched with the microswitch is arranged on the outer side of the shaft sleeve.

9. The rotary actuator assembly of any one of claims 1 to 8, wherein: the abutting surface and the butt joint surface extend along the axial direction of the output shaft.

10. A household appliance having a rotary actuator assembly according to any one of claims 1 to 9, the household appliance comprising a main body and a control device, the object to be rotated is a door body rotatably connected to the main body via the rotary actuator, and the driving mechanism is electrically connected to the control device.