CN218884406U - Air door assembly for household appliance and household appliance - Google Patents

Abstract

The utility model discloses a domestic appliance is with wind door subassembly and domestic appliance, including base, air door, direct current motor and angle sensor, the base is equipped with the ventilation hole, the air door is located the base, the air door for but the base wobbling has primary importance and second place at wobbling in-process the primary importance, the air door shutoff the ventilation hole the second place, the air door is relieved right the shutoff in ventilation hole, direct current motor with the air door links to each other, direct current motor is used for the drive the air door swing is in order to with the air door switches to primary importance or the second place, angle sensor locates the air door and/or direct current motor, angle sensor is used for monitoring the swing angle of air door is in order to ensure the air door swing extremely primary importance or the second place. The utility model discloses an air door subassembly the moment of torsion is big, can rotate in succession, has satisfied the use needs of big volumetric refrigerator.

Description

Air door assembly for household appliance and household appliance

Technical Field

The utility model relates to an air door adjustment technical field specifically relates to an air door subassembly for domestic appliance and domestic appliance of an applied this air door subassembly.

Background

In recent years, a large-capacity refrigerator has been developed to meet the demand for more freezing or refrigerating. However, the air door of the existing refrigerator has the problems of small torque, incapability of continuously rotating and the like, and cannot meet the use requirement of a large-volume refrigerator.

SUMMERY OF THE UTILITY MODEL

The present invention aims at solving one of the technical problems in the related art at least to a certain extent.

Therefore, the embodiment of the utility model provides a wind door subassembly for domestic appliance, this wind door subassembly for domestic appliance's moment of torsion is big, can rotate in succession, has satisfied the use needs of big volumetric refrigerator.

The embodiment of the utility model provides a still provide a domestic appliance who uses above-mentioned air door subassembly.

The utility model discloses air door subassembly for domestic appliance includes:

a base provided with a vent hole;

the air door is arranged on the base, can swing relative to the base and has a first position and a second position in the swinging process, the air door blocks the vent hole at the first position, and the air door releases the blocking of the vent hole at the second position;

the direct current motor is connected with the air door and used for driving the air door to swing so as to switch the air door to the first position or the second position;

the angle sensor is arranged on the air door and/or the direct current motor, and the angle sensor is used for monitoring the swing angle of the air door so as to ensure that the air door swings to the first position or the second position.

The utility model discloses air door subassembly's moment of torsion is big, can rotate in succession, has satisfied the use needs of big volumetric refrigerator.

In some embodiments, the damper includes a rotating shaft, the dc motor is provided with a motor shaft, the motor shaft and the rotating shaft are connected and coaxially arranged, and the angle sensor is provided on the motor shaft or the rotating shaft.

In some embodiments, the air door includes a door body, the rotating shaft is disposed on one side of the door body, both ends of the rotating shaft protrude out of the door body and form an extension section, and the angle sensor is disposed on the extension section.

In some embodiments, the shaft includes two of the extension sections and a middle section connected between the two extension sections, and the radial dimension of the extension section is larger than the radial dimension of the middle section.

In some embodiments, the base includes a slot portion, the slot portion is provided with a mounting groove, the ventilation hole is provided in the slot portion and located at a bottom of the mounting groove, and the damper is rotatably assembled in the mounting groove.

In some embodiments, the base includes a cavity portion connected to one end of the groove portion, the cavity portion having an inner cavity, and the dc motor is fitted in the inner cavity of the cavity portion.

In some embodiments, the base is provided with a first annular projection extending closed along the hole of the ventilation hole, the damper is provided with a second annular projection extending closed along an edge of the damper, and in the first position, the second annular projection surrounds an outer peripheral side of the first annular projection.

The household appliance provided by the utility model comprises the air door component for the household appliance as described in any embodiment above.

In some embodiments, the household appliance is a refrigerator, a washing machine, an air conditioner, or a dishwasher.

In some embodiments, the household appliance is a refrigerator including a plurality of storage compartments, and the damper assembly is disposed between adjacent two of the storage compartments.

Drawings

Fig. 1 is a schematic perspective view of a damper assembly according to an embodiment of the present invention.

Fig. 2 is an exploded view of the valve assembly of fig. 1.

Fig. 3 is a schematic view of the installation position of the angle sensor according to an embodiment of the present invention.

Fig. 4 is a schematic view of the installation position of the angle sensor according to another embodiment of the present invention.

Fig. 5 is a partial schematic view of a refrigerator according to an embodiment of the present invention.

Reference numerals:

a damper assembly 100;

a base 1; a groove part 11; a mounting groove 111; a vent hole 112; a first annular projection 113; a cavity portion 12;

an air door 2; a door body 21; a second annular protrusion 211; a rotating shaft 22; an extension section 221; an intermediate section 222;

an angle sensor 3;

a direct current motor 4; a motor shaft 41;

an inner container 200; a storage chamber 201.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

As shown in fig. 1 and 2, the damper assembly 100 for a household appliance according to an embodiment of the present invention includes a base 1, a damper 2, a dc motor 4, and an angle sensor 3.

The base 1 may have a plate-like or block-like structure, and as shown in fig. 2, the ventilation holes 112 may be rectangular holes, and in other embodiments, the ventilation holes 112 may also be round holes, triangular holes, or the like. The ventilation hole 112 penetrates the base 1 in the up-down direction, so that the upper and lower sides of the base 1 communicate and meet the ventilation requirement.

The damper 2 is provided on the base 1, and the damper 2 is swingable with respect to the base 1 and has a first position where the damper 2 blocks the ventilation hole 112 and a second position where the damper 2 releases the blocking of the ventilation hole 112 in the process of swinging.

Specifically, the damper 2 may be pivotally mounted on the base 1, and during the pivoting of the damper 2, the damper 2 has a first position and a second position, wherein the first position may be the position shown in fig. 1, and at this time, the damper 2 swings to above the vent hole 112 and blocks the upper end opening of the vent hole 112. When the damper 2 swings to the upper right, the damper 2 can be switched to the second position, and at this time, the damper 2 removes the blockage of the upper end orifice of the vent hole 112, so that the upper side and the lower side of the base 1 can be communicated.

As shown in fig. 3 and 4, the dc motor 4 is connected to the damper 2, and the dc motor 4 may be a forward/reverse dc motor. The damper 2 may be connected to a motor shaft 41 of the dc motor 4, whereby the damper 2 may be switched to the first position or the second position by rotation of the dc motor 4.

The angle sensor 3 is arranged on the air door 2 and/or the direct current motor 4, and the angle sensor 3 is used for monitoring the swing angle of the air door 2 so as to ensure that the air door 2 swings to the first position or the second position. For example, as shown in fig. 3, the angle sensor 3 may be mounted on the motor shaft 41 of the dc motor 4, and when the dc motor 4 rotates, the angle sensor 3 may monitor the rotation angle of the motor shaft 41 in real time, and may timely turn off the dc motor 4 according to the feedback result, thereby ensuring that the damper 2 swings to the first position or the second position.

It should be noted that, the air door assembly 100 may further be configured with a main control board, the main control board may be electrically connected to the dc motor 4 and the angle sensor 3, the main control board may control the rotation of the dc motor 4, and the angle sensor 3 may transmit the monitored angle information to the main control board, so as to implement accurate driving of the dc motor 4.

The utility model discloses air door subassembly 100, setting up of base 1 makes air door subassembly 100 form a whole to made things convenient for air door subassembly 100's installation and dismantlement, DC motor 4 set up the moment of torsion that causes when having avoided adopting step motor little, can not continuous pivoted problem, make air door subassembly 100 can adopt the design of big air door, satisfied the use needs of big volumetric refrigerator. The setting of the angle sensor 3 avoids the condition of poor precision of the rotation regulation of the direct current motor 4, and the rotation operation of the direct current motor 4 can be controlled by means of the angle feedback of the angle sensor 3, so that the precision requirement of the swing driving of the air door 2 is ensured.

In some embodiments, the damper 2 includes a rotating shaft 22, the dc motor 4 is provided with a motor shaft 41, the motor shaft 41 is connected to and coaxially arranged with the rotating shaft 22, and the angle sensor 3 is provided on the motor shaft 41 or the rotating shaft 22.

As shown in fig. 3, the damper 2 may have a rectangular shape, and the rotating shaft 22 may be integrally formed with the damper 2 and disposed at one side of the damper 2, and the motor shaft 41 is a driving shaft of the dc motor 4. The motor shaft 41 is disposed coaxially with the rotating shaft 22, and the motor shaft 41 can be directly connected and fixed with the rotating shaft 22, for example, the motor shaft 41 can be connected with the rotating shaft 22 by welding, coupling, and the like. The angle sensor 3 can be fixed on the motor shaft 41. In other embodiments, since the motor shaft 41 and the rotating shaft 22 rotate synchronously, as shown in fig. 4, the angle sensor 3 can also be fixed on the rotating shaft 22.

In some embodiments, the damper 2 includes a door body 21, a rotating shaft 22 is disposed at one side of the door body 21, two ends of the rotating shaft 22 protrude from the door body 21 and form an extending section 221, and the angle sensor 3 is disposed at the extending section 221.

As shown in fig. 2, the door body 21 has a rectangular plate shape, and the rotation shaft 22 may be fixed to a right side of the door body 21 and extend along a right side edge of the door body 21. The front end of the rotating shaft 22 extends beyond the front side of the door body 21 and forms an extension section 221, and the rear end of the rotating shaft 22 also extends beyond the rear side of the door body 21 and forms another extension section 221. The angle sensor 3 can be fixed to one of the two extensions 221.

The setting of extension section 221 has made things convenient for the rotation assembly of air door 2 and base 1 on the one hand, and on the other hand also provides the mounted position for angle sensor 3, has avoided angle sensor 3 to set up the condition that causes the influence to motor shaft 41 easily on motor shaft 41, has also avoided angle sensor 3 to set up the condition that influences the swing of the door body 21 easily in the middle part of pivot 22.

In some embodiments, the shaft 22 includes two extension sections 221 and a middle section 222 connected between the two extension sections 221, and the radial dimension of the extension sections 221 is greater than the radial dimension of the middle section 222.

As shown in fig. 2, each of the two extension sections 221 and the middle section 222 may be generally cylindrical, each of the two extension sections 221 is coaxially arranged with the middle section 222, and each of the two extension sections 221 has a radial dimension greater than that of the middle section 222. Thereby, the structural strength of the pivotal connection of the damper 2 and the base 1 can be ensured.

In some embodiments, the base 1 includes a slot portion 11, the slot portion 11 is provided with a mounting groove 111, a ventilation hole 112 is provided in the slot portion 11 and located at the bottom of the mounting groove 111, and the damper 2 is rotatably fitted in the mounting groove 111. For example, as shown in fig. 2, a slot portion 11 may be provided at the front side of the base 1, the slot portion 11 being a box-shaped structure, a mounting slot 111 being provided in the slot portion 11 with a notch of the mounting slot 111 being disposed upward, a shape of the mounting slot 111 being adapted to a shape of the damper 2. The air door 2 is rotatably assembled in the mounting groove 111, so that the effect of hiding the air door 2 is achieved, and the situation that the air door 2 is easily touched and interfered by other components in the swinging process is avoided.

In some embodiments, the base 1 includes a cavity portion 12, the cavity portion 12 is connected to one end of the slot portion 11, the cavity portion 12 is provided with an inner cavity, and the dc motor 4 is fitted in the inner cavity of the cavity portion 12. For example, as shown in fig. 2, the cavity 12 may be provided on the rear side of the base 1, and the cavity 12 may be integrally formed with the groove 11. The cavity 12 may be rectangular parallelepiped, the cavity 12 may be hollow, and the dc motor 4 may be mounted in the inner cavity of the cavity 12. Thereby playing a protective effect and avoiding the situation that sundries or external parts touch the direct current motor 4.

In some embodiments, the base 1 is provided with a first annular projection 113, the first annular projection 113 extends and closes along the hole of the ventilation hole 112, the damper 2 is provided with a second annular projection 211, the second annular projection 211 extends and closes along the edge of the damper 2, and in the first position, the second annular projection 211 surrounds the outer circumferential side of the first annular projection 113.

As shown in fig. 2, each of the first annular protrusion 113 and the second annular protrusion 211 may be square-ring shaped, the first annular protrusion 113 may be provided at a position of an outer circumferential edge of the ventilation hole 112, and the first annular protrusion 113 may be closed in one turn along a circumferential extension of a hole edge of the ventilation hole 112. The second annular projection 211 may be provided at an outer peripheral edge position of the damper 2, and the second annular projection 211 may be closed in one turn along a circumferential extension of the door body 21 of the damper 2.

The specification size of the second annular protrusion 211 is slightly larger than the specification size of the first annular protrusion 113, and after the air door 2 is switched to the first position, the second annular protrusion 211 can be sleeved on the outer peripheral side of the first annular protrusion 113, so that the sealing effect of the air door 2 can be enhanced, and the blocking effect is ensured.

The household appliance of the embodiment of the present invention is described below.

The household appliance of the embodiment of the present invention includes the air door assembly 100, and the air door assembly 100 may be the air door assembly 100 for the household appliance described in the above embodiment. The household appliance may be a refrigerator, a washing machine, an air conditioner, a dishwasher, etc., or may be other household appliances requiring the use of the damper assembly 100.

In some embodiments, the household appliance is a refrigerator including a plurality of storage compartments 201, and the damper assembly 100 is disposed between adjacent two of the storage compartments 201. As shown in fig. 5, the refrigerator includes an inner container 200, a plurality of storage chambers 201 may be disposed in the inner container 200, the plurality of storage chambers 201 may be sequentially disposed along an up-down direction, and two adjacent storage chambers 201 may be separated by a partition, the damper assembly 100 may be installed on the partition between the two storage chambers 201, a mounting hole may be disposed on the partition, and the base 1 of the damper assembly 100 may be installed in the mounting hole.

In use, the damper 2 of the damper assembly 100 is switched to the first position so as to close the vent 112, and the two storage compartments 201 adjacent to each other up and down are separated. When it is necessary to communicate the two adjacent storage chambers 201, the damper 2 may be switched to the second position by the dc motor 4, so that the two storage chambers 201 adjacent to each other up and down may be communicated with each other through the vent hole 112.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description of the present invention and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "above," and "over" a second feature may be directly on or obliquely above the second feature, or simply mean that the first feature is at a higher level than the second feature. A first feature "under," "beneath," and "under" a second feature may be directly under or obliquely under the second feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the present disclosure, the terms "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present disclosure. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although the above embodiments have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations to the above embodiments by those of ordinary skill in the art are intended to be within the scope of the present invention.

Claims (10)

1. A damper assembly for a household appliance, comprising:

a base provided with a vent hole;

the air door is arranged on the base, can swing relative to the base and has a first position and a second position in the swinging process, the air door blocks the vent hole at the first position, and the air door releases the blocking of the vent hole at the second position;

the direct current motor is connected with the air door and used for driving the air door to swing so as to switch the air door to the first position or the second position;

the angle sensor is arranged on the air door and/or the direct current motor, and the angle sensor is used for monitoring the swing angle of the air door so as to ensure that the air door swings to the first position or the second position.

2. The door assembly of claim 1, wherein the damper includes a shaft, the dc motor has a motor shaft, the motor shaft and the shaft are connected and coaxially disposed, and the angle sensor is disposed on the motor shaft or the shaft.

3. The door assembly of claim 2, wherein the door comprises a door body, the rotating shaft is disposed at one side of the door body, two ends of the rotating shaft protrude out of the door body to form an extending section, and the angle sensor is disposed at the extending section.

4. The door assembly of claim 3, wherein the hinge includes two extension segments and a middle segment connected between the two extension segments, the extension segments having a radial dimension greater than a radial dimension of the middle segment.

5. The door assembly of claim 1, wherein the base includes a slot portion having a mounting slot, the vent hole is disposed in the slot portion and located at a bottom of the mounting slot, and the damper is rotatably mounted in the mounting slot.

6. The door assembly as claimed in claim 5, wherein the base includes a cavity portion coupled to one end of the groove portion, the cavity portion having an inner cavity, the DC motor being fitted in the inner cavity of the cavity portion.

7. A damper assembly as claimed in any one of claims 1 to 6, wherein the base is provided with a first annular protrusion which extends closed along the aperture of the vent, the damper is provided with a second annular protrusion which extends closed along an edge of the damper, and in the first position the second annular protrusion surrounds an outer peripheral side of the first annular protrusion.

8. A household appliance comprising a damper assembly for a household appliance according to any one of claims 1 to 7.

9. The household appliance according to claim 8, wherein the household appliance is a refrigerator, a washing machine, an air conditioner or a dishwasher.

10. The household appliance of claim 8, wherein the household appliance is a refrigerator comprising a plurality of storage compartments, and the damper assembly is disposed between adjacent two of the storage compartments.

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