WO2018059521A1

WO2018059521A1 - Air channel assembly and refrigerator having same

Info

Publication number: WO2018059521A1
Application number: PCT/CN2017/104155
Authority: WO
Inventors: 麻艳; 付东晓
Original assignee: 青岛海尔股份有限公司
Priority date: 2016-09-30
Filing date: 2017-09-29
Publication date: 2018-04-05
Also published as: CN106440620A; CN106440620B

Abstract

Disclosed is an air channel assembly (10). The air channel assembly comprises: a first cover plate (11), a second cover plate (12) and an airflow adjustment device (14), wherein the first cover plate (11) and the second cover plate (12) define an air supply channel (13), and the airflow adjustment device (14) comprises an adjustment member (141), a damper (142) and an electromagnetic valve (143). The adjustment member (141) is arranged on the side of the first cover plate (11) away from the air supply channel (13), the second cover plate (12) is concave in the direction away from the air supply channel (13) to form an accommodating part (121) used for accommodating the electromagnetic valve (143), an opening of the accommodating part (121) is provided with a shielding part (15), the damper (142) is arranged in the air supply channel (13), and the adjustment member (141) can drive the damper (142) to rotate in the air supply channel (13), and then drive the electromagnetic valve (143) to be connected or disconnected.

Description

Air duct component and refrigerator having the same

The present application claims the priority of the Chinese patent application entitled "A wind tunnel assembly and a refrigerator having the same" as the application date is September 30, 2016, the application number is 201610873673.7, the entire contents of which are incorporated herein by reference. In the application.

Technical field

The invention belongs to the technical field of household appliances, and in particular relates to a wind channel assembly for preventing and closing ice, and a refrigerator having the same.

Background technique

The air-cooled refrigerator includes a refrigerating compartment and a refrigerating compartment, and the refrigerating compartment includes a refrigerating inner tank and a refrigerating air duct assembly disposed in the refrigerating inner chamber, and the freezing compartment includes a freezing inner tank and a freezing air duct assembly disposed in the freezing inner tank The refrigerating air duct formed by the refrigerating air duct assembly is connected with the freezing air duct formed by the freezing air duct assembly, and a part of the cold air in the freezing air duct is blown into the freezing compartment, and the other part is blown into the refrigerating compartment through the refrigerating air duct, and the cold air is in the air. An air-cooling cycle is achieved between the refrigerating compartment and the freezing compartment of the refrigerator.

At present, some air-cooled refrigerators on the market have the function of switching the freezer compartment into a refrigerating compartment, which realizes the function of switching the freezer compartment into a refrigerating compartment by providing an electric appliance changeover switch in the air duct, and freezing when the air-cooled refrigerator runs the refrigeration switching refrigeration program. The room begins to heat up, causing the cold air in the air duct to contain moist water vapor, which easily causes the electrical switch in the air duct to get wet or even freeze.

Therefore, it is necessary to propose a duct assembly to solve the above technical problems.

Summary of the invention

One of the objects of the present invention is to provide a duct assembly that can prevent the electromagnetic valve disposed in the air duct from freezing with water.

It is still another object of the present invention to provide a refrigerator.

To achieve the above object, the present invention provides a duct assembly comprising:

First cover;

a second cover; the first cover and the second cover jointly define a supply air duct;

An air volume adjusting device comprising an adjusting member, a damper and a solenoid valve;

The adjusting member is disposed on a side of the first cover plate away from the air supply duct, and the second cover plate is recessed away from the air supply duct to form a receiving portion for receiving the electromagnetic valve. Providing a shielding portion at an opening of the accommodating portion, wherein the damper is disposed in the air blowing air passage, and the adjusting member can drive the damper to rotate in the air blowing air passage, and further drive the electromagnetic The valve is turned on or off.

As a further improvement of the present invention, the damper includes a rotating shaft and a blocking piece fixed to the rotating shaft, the turning One end of the moving shaft is inserted into the adjusting member, and the other end is inserted into the electromagnetic valve.

As a further improvement of the present invention, the air duct assembly further includes a windshield, the windshield includes a cover body, the cover body is fixedly coupled to the rotating shaft, and the rotating shaft is pivoted At the opening of the receiving portion.

As a further improvement of the present invention, a projected area of the cover on the second cover covers a projected area of the shielding portion on the second cover.

As a further improvement of the present invention, the inner diameter of the cover body gradually increases in a direction from the first cover plate to the second cover plate, and the cover body has a flange near an end of the second cover plate 12. The structure, the distance between the flange structure and the second cover is smaller than the thickness of the shielding portion.

As a further improvement of the present invention, the cover body further has a bent portion provided between the rotating shaft and the flange structure.

As a further improvement of the present invention, the first cover plate is provided with a first mounting hole, and one end of the adjusting member is inserted into one end of the rotating shaft through the first mounting hole, and the shielding portion is A second mounting hole is provided, and one end of the solenoid valve is inserted through the second mounting hole to the other end of the rotating shaft.

As a further improvement of the present invention, the damper has at least two preset positions during the rotation.

As a further improvement of the present invention, a scale is provided on the first cover plate at a position corresponding to the adjusting member, and a rotation angle between two adjacent preset positions is 30 degrees.

Correspondingly, a refrigerator comprising the duct assembly of any of the preceding claims.

The utility model has the beneficial effects that the electromagnetic valve is placed in the air duct, and a accommodating portion for accommodating the electromagnetic valve is formed on the air duct cover, and a shielding portion is arranged at the opening of the accommodating portion, and the structure is simple. The problem that the electromagnetic valve freezes in the air duct is solved, and the refrigerator electrical control scheme is integrated, which simplifies the overall layout of the refrigerator electrical appliance.

DRAWINGS

1 is a schematic structural view of a first cover plate of a blower assembly according to an embodiment of the present invention.

Figure 2 is a cross-sectional view taken along line A-A of Figure 1.

Fig. 3 is a partial enlarged view of Fig. 2;

detailed description

The present invention will be described in detail below in conjunction with the embodiments shown in the drawings. However, the embodiments are not intended to limit the invention, and the structural, method, or functional changes made by those skilled in the art in accordance with the embodiments are included in the scope of the present invention.

The terms "upper", "upper", "lower", "lower", and the like, as used herein, are used to describe the relative position of the space for the purpose of illustration and description. The relationship of a unit or feature. Spatial phase Terms of position may be intended to include different orientations of the device in use or operation in addition to the orientation shown in the figures. For example, elements that are described as "below" or "beneath" other elements or features are "above" other elements or features. Thus, the exemplary term "lower" can encompass both the above and the The device may be oriented (rotated 90 degrees or other orientation) in other ways and the spatially related descriptors used herein interpreted accordingly.

Referring to Figures 1-3, a preferred embodiment of the air duct assembly 10 of the present invention is shown. The air duct assembly 10 of the present invention includes a duct cover, a supply air duct, and an air volume adjusting device 14, wherein the air duct cover includes a first cover 11 and a second cover 12, and the first cover 11 and the second cover The cover plates 12 collectively define a supply air duct 13.

The air volume adjusting device 14 includes an adjusting member 141, a damper 142, and a solenoid valve 143. Specifically, the adjusting member 141 is disposed on a side of the first cover 11 away from the air supply duct 13, and the second cover 12 is recessed away from the air supply duct 13 to form a receiving portion 121 for receiving the electromagnetic valve 143. A shielding portion 15 is provided at an opening of the accommodating portion 121, and the damper 142 is provided in the air blowing duct 13. The damper 142 includes a rotating shaft 1421 and a blocking piece (not shown) fixed to the rotating shaft 1421. The user manually rotates the adjusting member 141 to rotate the damper 142 in the air supply duct 13 to adjust the amount of air supplied to each of the refrigerating compartments, and thereby drive the solenoid valve 143 to be turned on or off.

The first cover 11 is provided with a first mounting hole 111. One end of the adjusting member 141 is inserted into one end of the rotating shaft 1421 through the first mounting hole 111, and the second mounting hole 151 is disposed on the shielding portion 15. One end of the valve 143 is inserted through the second mounting hole 151 to the other end of the rotating shaft 1421.

Further, the air duct assembly 10 further includes a windshield 16 including a cover body 161. The cover body 161 is fixedly coupled to the rotating shaft 1421 and is disposed at the opening of the receiving portion 121 with the rotating shaft 1421 as an axis. .

Preferably, the inner diameter of the cover body 161 gradually increases in a direction from the first cover plate 11 to the second cover plate 12, and the projected area of the cover body 161 on the second cover plate 12 covers the shielding portion 15 at the second cover plate. The projected area on the 12 is closed by the opening of the accommodating portion 121. In addition, a flange structure 162 is provided at one end of the cover body 161 near the second cover plate 12, and the distance between the flange structure 162 and the second cover plate 12 is smaller than the thickness of the shielding portion 15. More preferably, the cover body 161 further has a bent portion 163 disposed between the rotating shaft 1421 and the flange structure 162.

Accordingly, the present invention also provides a refrigerator (not shown) which can achieve the beneficial effects of the air duct assembly of the above embodiment by adopting the air duct assembly described in the above embodiments, which will be described in detail below:

The refrigerator includes a cabinet (not shown), a duct assembly 10, and a controller (not shown). A refrigerator compartment (not shown) and a freezer compartment (not shown) are defined in the cabinet. A temperature sensor (not shown) electrically connected to the controller is disposed in each of the freezer compartment and the refrigerating compartment. The duct assembly 10 includes air duct covers 11 and 12 and a supply air duct 13 that communicates with the refrigerating compartment and the freezing compartment of the refrigerator. Therefore, the air supply duct 13 further includes a refrigerating compartment air duct (not shown) and a freezer compartment air duct (not shown).

Further, a fan (not shown) is disposed in the freezer air duct, and the fan blows out the cold air generated by the refrigerator evaporator (not shown), and blows out along the air supply duct 13 through the air outlet of the refrigerating chamber and the freezing chamber. To achieve refrigeration in the refrigerating compartment and the freezing compartment. The air volume adjusting device 14 is placed close to the fan.

In the present embodiment, the refrigerator has a function of converting the freezing compartment into a refrigerating compartment, and this function is completed by the cooperation of the air volume adjusting device 14 and the refrigerator controller. The refrigerator controller is electrically connected to the electromagnetic valve 143 of the air volume adjusting device 14, and the controller is configured to control the start and stop of the refrigerator compressor according to the position signal fed back by the electromagnetic valve 143 and the temperature signal fed back by the temperature sensor in the freezing chamber, so that the refrigerator compressor is started and stopped. The temperature of the freezing compartment gradually approaches the temperature of the refrigerating compartment to convert the freezing compartment into a refrigerating compartment. Preferably, the solenoid valve 143 is a relay.

Specifically, the user drives the damper 142 to rotate in the air supply duct 13 by the rotation adjusting member 141 and thereby drives the electromagnetic valve 143 to be turned on or off. The damper 142 has at least two preset positions during the rotation process, and one preset position is the initial gear position. When the damper 142 is located in the initial gear position, the refrigeration function of the freezer compartment of the refrigerator is relatively strong, and the temperature of the refrigerator compartment is relatively suitable, and is a user. The most used gear position is used; the other preset position is the refrigerating and reversing shifting position, and the user can rotate the damper 142 from the initial gear position to the refrigerating and refrigerating conversion gear position through the adjusting member 141. When the adjustment member 141 continues to rotate and is in the "switch" position, the solenoid valve 143 is in an on state, which feeds back a position signal to the controller, tells the controller that the freezer compartment begins to heat up, and that the freezer compartment will operate in accordance with the cryogenic refrigerator compartment. The temperature of the refrigerating compartment is normal, and the controller controls the start and stop of the refrigerator compressor according to the temperature signal fed back by the temperature sensor of the freezing compartment, so that the temperature of the freezing compartment gradually approaches the temperature of the refrigerating compartment, so that the freezing compartment is converted into a refrigerating compartment. Preferably, a scale (not shown) is provided on the first cover 11 at a position corresponding to the adjusting member 141, and the angle of rotation between two adjacent preset positions is 30 degrees, of course, in the present invention. In other embodiments, the angle of rotation between the two preset positions may be any suitable angle. In the present embodiment, the adjusting member 141 is a knob, and the knob does not pause during the rotation from one preset position to another preset position, and stops when the user wants the preset position.

When the refrigerator runs the freezer compartment to switch the refrigerating compartment program, the freezing compartment starts to heat, and the cold air blown in the blowing duct 13 contains water vapor (the direction of the three arrows in Fig. 2 represents the flow direction of the cold air), in order to prevent the solenoid valve 143 from being encountered. In the water, the electromagnetic valve 143 is disposed in the accommodating portion 121 formed by the recess of the air duct cover 12, and the shielding portion 15 and the windshield 16 are further provided at the opening of the accommodating portion 121, when the humid cold air is blown toward the structure. The windshield 16 functions as a first layer of windproofing, in particular, the bent portion 163, which can block most of the humid air, while the shielding portion 15 can block the coherent water vapor outside the electromagnetic valve 143, because the shielding portion 15 is The air duct in the refrigerator is placed vertically, and the condensed water droplets run downward along the shielding portion 15 to avoid the electromagnetic valve 143 from being exposed to water or even freezing.

In addition, a flange structure 162 is disposed at an end of the cover body 161 adjacent to the second cover plate 12, and a distance between the flange structure 162 and the second cover plate 12 is smaller than a thickness of the shielding portion 15, and the flange structure 162 is also to a certain extent. Play a role in the wind, The moisture is prevented from entering the housing portion 121.

The invention integrates the electromagnetic valve and the air duct into one body, has the advantages of simple structure and small space occupation, not only solves the problem that the electrical switch freezes in the air duct, but also integrates the electric appliance control scheme, simplifies the overall layout of the electric appliance, and greatly reduces the product. Cost increases product competitiveness.

It is apparent to those skilled in the art that the present invention is not limited to the details of the above-described exemplary embodiments, and the present invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the invention is defined by the appended claims instead All changes in the meaning and scope of equivalent elements are included in the present invention. Any reference signs in the claims should not be construed as limiting the claim.

In addition, it should be understood that although the description is described in terms of embodiments, not every embodiment includes only one independent technical solution. The description of the specification is merely for the sake of clarity, and those skilled in the art should regard the specification as a whole. The technical solutions in the respective embodiments may also be combined as appropriate to form other embodiments that can be understood by those skilled in the art.

Claims

A duct assembly comprising:

First cover;

a second cover; the first cover and the second cover jointly define a supply air duct;

An air volume adjusting device comprising an adjusting member, a damper and a solenoid valve;

The adjusting member is disposed on a side of the first cover plate away from the air supply duct, and the second cover plate is recessed in a direction away from the air supply duct to form the electromagnetic a venting portion of the valve is provided with a shielding portion at an opening of the accommodating portion, wherein the damper is disposed in the air supply duct, and the adjusting member can drive the damper to rotate in the air blowing duct, and further The solenoid valve is driven to be turned on or off.
The air duct assembly according to claim 1, wherein said damper includes a rotating shaft and a blocking piece fixed to said rotating shaft, one end of said rotating shaft being inserted into said adjusting member, and the other end is coupled to The solenoid valve is plugged.
The air duct assembly according to claim 2, wherein the air duct assembly further comprises a windshield, the wind shield includes a cover body, and the cover body is fixedly coupled to the rotating shaft and The rotating shaft is disposed at an opening of the receiving portion.
The air duct assembly according to claim 3, wherein a projected area of the cover on the second cover covers a projected area of the shielding portion on the second cover.
The air duct assembly according to claim 4, wherein an inner diameter of said cover body gradually increases in a direction from said first cover to said second cover, said cover being adjacent to said second One end of the cover plate 12 has a flange structure, and the distance between the flange structure and the second cover plate is smaller than the thickness of the shielding portion.
The air duct assembly according to claim 5, wherein said cover body further has a bent portion provided between said rotating shaft and said flanged structure.
The air duct assembly according to claim 2, wherein the first cover plate is provided with a first mounting hole, and one end of the adjusting member passes through the first mounting hole and one end of the rotating shaft The second shielding hole is disposed on the shielding portion, and one end of the electromagnetic valve is inserted into the other end of the rotating shaft through the second mounting hole.
The air duct assembly of claim 2 wherein said damper has at least two predetermined positions during rotation.
The air duct assembly according to claim 8, wherein a scale is provided at a position corresponding to the adjusting member on the first cover, and a rotation between two adjacent preset positions is provided. The angle is 30 degrees.
A refrigerator characterized by comprising the air duct assembly of claim 1.