Shielding device and refrigerator comprising same

Abstract

According to the shielding device and the refrigerator comprising the shielding device, the shielding function and the opening function of the shielding device are achieved by arranging the movable shielding part, the inner space and the outer space of an open hole can be effectively isolated so that water vapor can be prevented from invading the interior of the open hole, and the open hole can be opened to communicate the inner space and the outer space when needed. The device in the hole is allowed to work outwards; the driving device connected with the shielding part is arranged, so that indirect control over the shielding part is achieved, the driving device can be flexibly adjusted according to the use scene, the device adapts to the trepanning conditions of different refrigerator door bodies, adaptability is good, and the overall structure is simple.

Description

Technical Field

[0001] The utility model relates to the field of refrigerators, in particular to a shielding device and a refrigerator comprising the same. Background Art

[0002] The automatic door opening method of refrigerators is becoming more and more common in the market. The automatic door opening method of refrigerators mainly involves opening a hole near the door of the refrigerator, setting a refrigerator push rod in the hole, and giving a door opening command when the user needs to open the door. The push rod can be extended from the hole to push the refrigerator door open.

[0003] However, due to the low temperature inside the refrigerator and the high moisture content, the moisture will spread into the opening of the refrigerator, which will seriously affect the normal operation of the push rod device over time and reduce the service life of the push rod device. Therefore, in order to reduce the interference of moisture on the internal environment of the opening, the utility model provides a moisture-proof device for reducing moisture from entering the opening of the refrigerator, protecting the device in the opening, and thus increasing the service life of the push rod device. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the defects in the prior art that refrigerator openings are easily affected by water vapor intrusion, the refrigerator openings lack water vapor proof devices, and the existing water vapor proof devices or shielding devices are not highly compatible with the refrigerator, and to provide a shielding device and a refrigerator comprising the same.

[0005] The utility model solves the above technical problems through the following technical solutions:

[0006] A shielding device for shielding an opening on a door of a refrigerator, characterized in that the shielding device comprises:

[0007] A shielding portion, which can be moved to a preset shielding position or leave the shielding position to shield or expose the opening;

[0008] A driving device is connected to the shielding portion, and is used to drive the shielding portion to move to the shielding position or leave the shielding position.

[0009] In the present solution, a movable shielding portion is provided to shield or expose the opening as needed, thereby realizing the switching of the device's shielding and opening functions, which can not only effectively isolate the inner and outer spaces of the opening, but also open the opening to connect the inner and outer spaces when needed; by providing a driving device connected to the shielding portion, indirect control of the shielding portion is realized, and the driving device can be flexibly adjusted according to the usage scenario to adapt to the opening conditions on different refrigerator doors, with good adaptability and a simple overall structure.

[0010] Preferably, the driving device is used to enable the shielding portion to move to or leave the shielding position through rotation or linear motion.

[0011] In this solution, different movement forms of the shielding part can be achieved by setting different driving devices to drive the movement of the shielding part, or adjusting the connection method between the driving device and the shielding part, etc. Its rotational or linear motion form can meet most common usage requirements and adapt to a variety of refrigerator door opening conditions, with good adaptability.

[0012] Preferably, the driving device includes a power source and a transmission assembly, the power source is connected to the input end of the transmission assembly and is used to drive the rotation thereof, and the output end of the transmission assembly is connected to the shielding portion and is used to drive the shielding portion to move directly.

[0013] In this solution, a transmission component is provided to transmit the force from the power source to the shielding part, so that the shielding part can be set away from the power source, reducing the restrictions on the size or movement of the shielding part caused by the size or position of the power source; the transmission component can transform the action form of the power source, such as converting circular rotation into horizontal movement, etc., so as to meet the needs of adjusting the movement form of the baffle according to different shielding conditions, and the structure is more perfect and has better structural adaptability.

[0014] Preferably, the transmission assembly comprises a first connecting shaft, a rotating wheel, a second connecting shaft, a first connecting rod and a second connecting rod;

[0015] Wherein, the first connecting shaft and the second connecting shaft are arranged at two ends of the rotating wheel, the first connecting shaft is arranged at the center of the rotating wheel and connected to the power source as the input end, and the second connecting shaft is offset from the center of the rotating wheel;

[0016] The first connecting rod is connected between the second connecting shaft and the second connecting rod, the rotating wheel drives the first connecting rod to rotate through the second connecting shaft, and the second connecting rod serves as the output end to drive the shielding part to move linearly.

[0017] In the present solution, by providing a rotating wheel rotating around the central first connecting axis in the transmission assembly, a primary conversion of power is achieved, that is, the circular rotation is converted into the circular rotation of the wheel rim position around the first connecting axis, thereby indirectly realizing the transformation of the motion form of the connecting rod assembly-the shielding part; by providing the first connecting rod and the second connecting rod, the freedom of the moving direction of the shielding part is improved. In theory, the shielding part can make a linear reciprocating motion driven by the second connecting rod. In actual implementation, in theory, it can move along any preset form with the second connecting rod, so that it meets the actual shielding needs.

[0018] Preferably, the transmission assembly further comprises a limiter, wherein the limiter acts on the second connecting rod to limit the rotation of the second connecting rod relative to the first connecting rod and enables the second connecting rod to move linearly along its extension direction.

[0019] In this solution, a preset track is set for the second connecting rod through a limiting member, so that the second connecting rod moves in the expected direction, indirectly limiting the moving direction of the shielding part, thereby avoiding restrictions on the size or movement of the shielding part by the limiting member, so that the structural form of the shielding part can be adjusted as needed.

[0020] Preferably, the limiting member comprises two limiting plates arranged opposite to each other, the two limiting plates are used to enclose a limiting channel, the second connecting rod passes through the limiting channel, and the two limiting plates are respectively located at the upper and lower sides of the second connecting rod along the thickness direction.

[0021] In this solution, two limiting plates are used as limiting members, surrounding the upper and lower sides of the second connecting rod to form a limiting channel. The limiting member is suitable for the structural characteristics of the rod, has a simple structure and low cost.

[0022] Preferably, the limiting member further comprises a connecting plate, wherein the connecting plate is located between the two limiting plates and connected to the ends of the two limiting plates.

[0023] In this solution, a connecting plate is added between the limiting members, which can better fix the relative position between the two limiting plates and prevent the limiting plates from tilting relative to each other and affecting the movement stability of the second connecting rod and the shielding part.

[0024] A refrigerator comprises a door body, wherein the door body is provided with an opening, and the refrigerator further comprises a shielding device as described in any of the above schemes.

[0025] Preferably, the refrigerator further comprises a push rod device, the push rod device comprises a push rod, the push rod has an extended state for opening the door body and a retracted state for closing the door body;

[0026] Wherein, when the push rod is in the extended state, the push rod cooperates with the opening, and the shielding portion leaves the shielding position and moves to the initial position;

[0027] Wherein, when the push rod is in the retracted state, the push rod is separated from the opening, and the shielding portion moves to the shielding position.

[0028] In the present solution, the aforementioned shielding device is used for a refrigerator with a push rod device, and the push rod is arranged to cooperate with or separate from the aforementioned opening when in an extended state and a retracted state, respectively, so that the shielding device is adapted to an automatic door opening refrigerator. When the push rod is needed, the shielding portion is removed to avoid interference, and when the push rod is not in use, the opening can be shielded to achieve a water vapor proof function, thereby improving the adaptability of the shielding device and the push rod device and being more practical.

[0029] Preferably, the refrigerator further comprises a first detection device, a second detection device and a controller;

[0030] The first detection device is electrically connected to the controller, the first detection device is used to detect whether the pressing force applied to the door body reaches a first threshold, and is used to generate a door opening signal when the pressing force reaches the first threshold, and the controller is used to act on the shielding device when receiving the door opening signal, so that the shielding part leaves the shielding position until it moves to the initial position;

[0031] The controller is also used to act on the push rod device when the shielding portion moves to the initial position, so that the push rod is extended to the extended state;

[0032] The second detection device is electrically connected to the controller, and is used to detect whether the opening of the door body reaches a second threshold, and is used to generate a door closing signal when the opening of the door body reaches the second threshold. The controller is used to act on the push rod device when receiving the door closing signal, so that the push rod retracts to the retracted state;

[0033] The controller is further configured to act on the shielding device when the push rod is retracted to the retracted state, so as to move the shielding portion to the shielding position.

[0034] In the present solution, by adding an electrically connected controller and a first detection device, the function of detecting the user's pressing force on the door is realized. When the appropriate pressure is detected, the controller controls the shielding part and the push rod to perform the automatic door opening action. Therefore, the user only needs to lightly press the door body with appropriate pressure to realize the automatic opening of the door body, thereby optimizing the user operation experience; by adding a second detection device, the function of detecting the opening degree of the door body is realized, that is, when the door is opened to a large enough extent, the push rod is automatically retracted and the shielding part is moved to close the opening at the same time, so as to isolate the push rod from water vapor in time and prevent the push rod from being exposed to a water vapor environment for too long, thereby optimizing the protection effect of the push rod.

[0035] The positive progressive effect of the present invention is that: by providing a movable shielding part, the device's function of shielding the opening and the function of opening the opening are realized, which can effectively isolate the inner and outer spaces of the opening to prevent water vapor from invading the interior of the opening, and can open the opening to connect the inner and outer spaces when needed; by providing a driving device connected to the shielding part, indirect control of the shielding part is realized, and the driving device can be flexibly adjusted according to the usage scenario to adapt to the opening conditions on different refrigerator door bodies, with good adaptability and a simple overall structure; in addition, the aforementioned shielding device is used for a refrigerator with a push rod device, and the push rod is set to cooperate with or separate from the aforementioned opening when it is in an extended state and a retracted state, respectively, so that the shielding device is adapted to an automatic door opening refrigerator, and the shielding part is removed when the push rod needs to be used to avoid interference, and the opening can be shielded when the push rod is not in use to realize the water vapor prevention function, thereby improving the adaptability of the shielding device and the push rod device, and being more practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 It is a three-dimensional view of the left front side of a shielding device according to an embodiment of the present invention.

[0037] Figure 2 This is a front view of a shielding device according to an embodiment of the utility model.

[0038] Figure 3 It is a three-dimensional view of the right rear side of a shielding device according to an embodiment of the present invention.

[0039] Figure 4 The present invention is a flowchart of a shielding device according to an embodiment of the present invention when used in conjunction with a push rod device.

[0040] Description of reference numerals:

[0041] Shielding part 1

[0042] Transmission component 2

[0043] Input 21

[0044] Output 22

[0045] First connecting shaft 23

[0046] Reel 24

[0047] Second connecting shaft 25

[0048] First connecting rod 26

[0049] Second connecting rod 27

[0050] Limiter 3

[0051] Limiting plate 31

[0052] Connecting plate 32 DETAILED DESCRIPTION

[0053] A preferred embodiment is given below, and the present invention is described more clearly and completely in conjunction with the accompanying drawings.

[0054] Figure 1 1 is a perspective view of the left front side of a shielding device of an embodiment of the utility model. The shielding device of the utility model is used to shield the opening on the door of a refrigerator, and the shielding device includes a shielding portion 1 and a driving device. Figure 1As shown, the shielding device is provided with a movable shielding part 1, and the shielding part 1 can be moved to a preset shielding position or leave the shielding position to realize the device's function of shielding the opening and opening the opening, which can not only effectively isolate the inner and outer spaces of the opening and block water vapor, but also open the opening to connect the inner and outer spaces when needed; the driving device is connected to the shielding part 1, and is used to drive the shielding part 1 to move as before, and the user can achieve indirect control of the shielding part 1 through the driving device.

[0055] Depend on Figure 1 It can be seen that in the present embodiment, a circular baffle is selected for the shielding part 1, but the technicians in this field should select shielding parts 1 of other shapes, such as square sliders, etc., according to the shape and characteristics of the opening to be shielded when actually implementing this solution. Such adjustments will not cause the main technical effects of the shielding part 1 to be lost.

[0056] In addition, the specific structure and driving form of the driving device should also be adjusted according to the usage scenario. The specific structure of the driving device described in detail below is a preferred embodiment and is only used as an example to illustrate the present utility model. For example, the driving device selected in this embodiment is used to move the shielding part 1 to or away from the shielding position through linear motion, but in the actual implementation process, it can also be adjusted to move the shielding part 1 through other forms such as rotation, and its specific adjustment method will be further described in detail below.

[0057] like Figure 1 , Figure 3 As shown, the driving device includes a transmission component 2 and a power source not shown in the figure. Among them, the power source can be selected from an ordinary motor, or other power sources compatible with the corresponding transmission component 2 can be selected as needed. The power source is connected to the input end 21 of the transmission component 2 and is used to drive it to rotate, while the output end 22 of the transmission component 2 is connected to the shielding part 1 and is used to drive the shielding part 1 to move directly, thereby transmitting the force from the power source to the shielding part 1, so that the shielding part 1 can be set away from the power source, reducing the size or position of the power source. Restrictions on the size or movement of the shielding part 1. In addition, the transmission component 2 can transform the action form of the power source. For example, in this embodiment, the circular rotation of the motor rotor can be converted into the horizontal movement of the output end 22. The conversion can adjust the movement form of the baffle to meet the shielding requirements, and has good adaptability.

[0058] The movement mode of the output end 22 of the present embodiment is suitable for most shielding requirements. In the actual implementation process, those skilled in the art can also adjust the movement mode of the output end 22 by adjusting the transmission component 2 to adapt to special opening conditions.

[0059] Depend on Figure 1 , Figure 3It can be seen that the transmission assembly 2 includes a first connecting shaft 23, a rotating wheel 24, a second connecting shaft 25, a first connecting rod 26 and a second connecting rod 27. The first connecting shaft 23 and the second connecting shaft 25 are arranged at both ends of the rotating wheel 24, the first connecting shaft 23 is arranged at the center of the rotating wheel 24, and is connected to the power source as the input end 21, and the second connecting shaft 25 is offset from the center of the rotating wheel 24. Through this connection mode, when the power source drives the first connecting shaft 23 to rotate, it will drive the rotating wheel 24 to rotate around the center as a whole, thereby driving the eccentric second connecting shaft 25 to rotate, thereby indirectly realizing the transformation of the motion form of the connecting rod assembly-shielding part 1.

[0060] The first connecting rod 26 is connected between the second connecting shaft 25 and the second connecting rod 27. The rotating wheel 24 drives the first connecting rod 26 to rotate through the second connecting shaft 25. The second connecting rod 27, as the output end 22, drives the shielding part 1 to move linearly. Through this connection method, the freedom of the moving direction of the shielding part 1 is improved, and the shielding part 1 can move linearly under the drive of the second connecting rod 27. In actual implementation, those skilled in the art can change the moving distance and form of the shielding part 1 by adjusting the number of connecting rods and the connection method to meet the actual shielding requirements.

[0061] Figure 2 This is a front view of a shielding device according to an embodiment of the present utility model. Figure 2 As shown, the transmission assembly 2 of this embodiment further includes a limiter 3, which acts on the second connecting rod 27 to limit the rotation of the second connecting rod 27 relative to the first connecting rod 26 and allows the second connecting rod 27 to move linearly along its extension direction. In this embodiment, the limiter 3 sets a preset track for the second connecting rod 27, so that the second connecting rod 27 moves in the expected direction, and indirectly limits the moving direction of the shielding portion 1, thereby avoiding the limiter from limiting the size or movement of the shielding portion 1. Figure 3 As shown, the limiting member 3 includes two limiting plates 31 arranged opposite to each other, and the two limiting plates 31 are used to enclose a limiting channel. The second connecting rod 27 is inserted into the limiting channel, and the two limiting plates 31 are respectively located at the upper and lower sides of the second connecting rod 27 along the thickness direction.

[0062] In actual implementation, the structure or setting position of the limiter 3 can be changed, for example, the limiter 3 is set to be a hinge block close to one side of the thickness direction of the second limiter rod, so that the second connecting rod 27 can rotate / swing around the hinge block under the drive of the first connecting rod 26 to drive the shielding part 1 to reciprocate along the arc path. At the same time, those skilled in the art should understand that when the number and connection method of the connecting rods are adjusted as above, the limiter 3 should also be adjusted accordingly to cooperate with the connecting rods to guide the shielding part 1 to move as expected.

[0063] like Figure 3As shown, the limiting member 3 further includes a connecting plate 32, which is located between the two limiting plates 31 and connected to the ends of the two limiting plates 31. The connecting plate 32 can better fix the relative position between the two limiting plates 31, and prevent the limiting plates 31 from tilting relative to each other and affecting the movement stability of the second connecting rod 27 and the shielding portion 1. The connecting plate 32 can be removed from the device as needed without causing the main limiting effect of the limiting member 3 to be lost.

[0064] The utility model also discloses a refrigerator, which includes a door body, an opening is provided on the door body, and the refrigerator also includes a shielding device as in any of the above schemes. The refrigerator also includes a push rod device, the push rod device includes a push rod, and the push rod has an extended state for opening the door body and a retracted state for closing the door body; wherein, when the push rod is in the extended state, the push rod cooperates with the opening, and the shielding portion 1 leaves the shielding position and moves to the initial position; wherein, when the rod is in the retracted state, the push rod is separated from the opening, and the shielding portion 1 moves to the shielding position. In this embodiment, the aforementioned shielding device is used for a refrigerator with a push rod device, and the push rod device is arranged in the opening to shield and protect the push rod, so that the shielding device is adapted to an automatic door opening refrigerator. In addition, the shielding portion 1 and the moving state of the push rod are matched, so that the shielding portion 1 can be removed when the push rod is needed to avoid interference, and the opening can be shielded when the push rod is not used to achieve a water vapor-proof function, thereby improving the adaptability of the shielding device and the push rod device, and being more practical.

[0065] In actual implementation, the shielding device can also be used for other openings on the refrigerator that require shielding and water vapor protection. The push rod device of this embodiment can be used as a reference for the working method of the device in the opening and the shielding device.

[0066] The refrigerator further comprises a first detection device, a second detection device and a controller, wherein the first detection device and the controller are electrically connected. Figure 4 As shown, when the shielding device of this embodiment is used in conjunction with the push rod device, the first detection device is used to detect whether the pressing force on the door body reaches the first threshold value. When the user presses the door body with an appropriate force, it is detected that the pressing force reaches the first threshold value and a door opening signal is generated. The controller is used to act on the shielding device when receiving the door opening signal, so that the shielding part 1 leaves the shielding position until it moves to the initial position, that is, the execution Figure 4 Step S100 in the embodiment: the baffle moves backward.

[0067] The controller is also used to act on the push rod device when the shielding portion 1 moves to the initial position, so that the push rod is extended to the extended state, that is, the Figure 4 Step S200 in the process: the push rod is extended. At this time, the refrigerator door is automatically opened.

[0068] The second detection device is electrically connected to the controller. The second detection device is used to detect whether the door opening reaches a second threshold, that is, whether the door opening allows the user to easily take in and put out items. When the door opening reaches the second threshold, a door closing signal is generated. That is, when the door is opened to a sufficient degree, the push rod is automatically retracted to allow the user to close the door. The controller is used to act on the push rod device when receiving the door closing signal, so that the push rod is retracted to a retracted state, that is, the door is closed. Figure 4 Step S300: the push rod is retracted;

[0069] The controller is also used to act on the shielding device when the push rod is retracted to the retracted state, so that the shielding part 1 moves to the shielding position, that is, to execute Figure 4 Step S400: the baffle moves forward. This solution retracts the push rod in time and restores it to the shielded state, isolating it from water vapor, and preventing the push rod from being exposed to the water vapor environment for too long, thereby optimizing the protection effect of the push rod.

[0070] Specifically in this embodiment, the first detection device is a pressure sensor, and the second detection device is a displacement sensor.

[0071] During the actual implementation process, those skilled in the art may adjust the work flow of the detection device and the controller according to the function of the device in the opening. The flowchart shown in this embodiment is only used as a reference example to avoid interference between the shielding device and the device in the opening and to minimize the exposure time of the device in the opening.

[0072] In the description of this embodiment, the directions indicated by the selected directional words "front", "back", "left", "right", "upper", and "lower" are based on the directions shown in the drawings of the specification. The indicated directions are only used to simplify the description of the utility model, and are not used as specific directions for actual installation and use, and therefore are not used as limitations on the utility model.

[0073] In the description of the present utility model, the selected embodiment is one of the specific implementation methods within the protection scope defined by the attached claims, which is only used as an example. The protection scope of the present utility model shall be based on the definition of the claims.

[0074] Those skilled in the art may make various adjustments to the implementation methods thereof without departing from the principles and essence of the present invention. The above-mentioned exemplified adjusted implementation methods all fall within the protection scope of the present invention and will not result in the loss of key technical effects.

Claims

1. A shielding device for shielding an opening on a door of a refrigerator, characterized in that: The shielding device comprises: A shielding portion, which can be moved to a preset shielding position or leave the shielding position to shield or expose the opening; A driving device is connected to the shielding portion, and is used to drive the shielding portion to move to the shielding position or leave the shielding position.

2. The shielding device according to claim 1, characterized in that: The driving device is used to enable the shielding portion to move to or leave the shielding position through rotation or linear motion.

3. The shielding device according to claim 2, characterized in that: The driving device includes a power source and a transmission component, wherein the power source is connected to the input end of the transmission component and is used to drive the transmission component to rotate, and the output end of the transmission component is connected to the shielding part and is used to drive the shielding part to move directly.

4. The shielding device according to claim 3, characterized in that: The transmission assembly includes a first connecting shaft, a rotating wheel, a second connecting shaft, a first connecting rod and a second connecting rod; Wherein, the first connecting shaft and the second connecting shaft are arranged at two ends of the rotating wheel, the first connecting shaft is arranged at the center of the rotating wheel and connected to the power source as the input end, and the second connecting shaft is offset from the center of the rotating wheel; The first connecting rod is connected between the second connecting shaft and the second connecting rod, the rotating wheel drives the first connecting rod to rotate through the second connecting shaft, and the second connecting rod serves as the output end to drive the shielding part to move linearly.

5. The shielding device according to claim 4, characterized in that: The transmission assembly further includes a limiting member, which acts on the second connecting rod to limit the second connecting rod from rotating relative to the first connecting rod and enables the second connecting rod to move linearly along its extending direction.

6. The shielding device according to claim 5, characterized in that: The limiting member includes two limiting plates arranged opposite to each other, the two limiting plates are used to enclose a limiting channel, the second connecting rod is passed through the limiting channel, and the two limiting plates are respectively located at the upper and lower sides of the second connecting rod along the thickness direction.

7. The shielding device according to claim 6, characterized in that: The limiting member further comprises a connecting plate, and the connecting plate is located between the two limiting plates and connected to the ends of the two limiting plates.

8. A refrigerator, comprising a door body, wherein the door body is provided with an opening, characterized in that: The refrigerator also includes a shielding device as described in any one of claims 1-7.

9. The refrigerator according to claim 8, characterized in that: The refrigerator further comprises a push rod device, the push rod device comprising a push rod, the push rod having an extended state for opening the door body and a retracted state for closing the door body; Wherein, when the push rod is in the extended state, the push rod cooperates with the opening, and the shielding portion leaves the shielding position and moves to the initial position; Wherein, when the push rod is in the retracted state, the push rod is separated from the opening, and the shielding portion moves to the shielding position.

10. The refrigerator according to claim 9, characterized in that: The refrigerator further includes a first detection device, a second detection device and a controller; The first detection device is electrically connected to the controller, the first detection device is used to detect whether the pressing force applied to the door body reaches a first threshold, and is used to generate a door opening signal when the pressing force reaches the first threshold, and the controller is used to act on the shielding device when receiving the door opening signal, so that the shielding part leaves the shielding position until it moves to the initial position; The controller is also used to act on the push rod device when the shielding portion moves to the initial position, so that the push rod is extended to the extended state; The second detection device is electrically connected to the controller, and is used to detect whether the opening of the door body reaches a second threshold, and is used to generate a door closing signal when the opening of the door body reaches the second threshold. The controller is used to act on the push rod device when receiving the door closing signal, so that the push rod retracts to the retracted state; The controller is also used to act on the shielding device when the push rod is retracted to the retracted state, so that the shielding portion moves to the shielding position.

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