Refrigerator electric door opening device and refrigerator

Abstract

The utility model relates to the technical field of refrigerator door opening, in particular to a refrigerator electric door opening device and a refrigerator. According to the electric door opening device of the refrigerator, the refrigerator comprises a refrigerator body and a refrigerator door, and the refrigerator door is connected with the refrigerator body through a hinge; the electric door opening device for the refrigerator comprises a base, a door opening device and a door opening device, wherein the base is provided with a sliding groove and used for being installed on the refrigerator body; the driving part is mounted on the base; the movable rod is arranged in the sliding groove and provided with a first end and a second end which are oppositely arranged, and the first end is used for being connected with the hinge; one end of the connecting rod mechanism is connected with the driving piece, and the other end of the connecting rod mechanism is connected with the second end of the movable rod; moreover, under the driving of the driving piece, the connecting rod mechanism can drive the first end of the movable rod to extend out of or retract into the sliding groove so as to promote the hinge to be opened or folded. The refrigerator comprises the electric door opening device of the refrigerator. The door lock has the advantages of being smaller in size, stable in door opening and attractive.

Description

Technical Field

[0001] The present application relates to the technical field of refrigerator door opening, and in particular to an electric door opening device for a refrigerator and a refrigerator. Background Art

[0002] In modern homes, refrigerators are an indispensable appliance. As people pursue a more intelligent lifestyle, refrigerator door opening methods are constantly improving. Traditional refrigerator doors require manual opening, which causes many inconveniences in daily life.

[0003] To address these issues, electric door openers have emerged. Currently, these devices typically employ plunger-type automatic door opening and closing mechanisms, utilizing hydraulic oil and springs to automatically open and close the door. Alternatively, they employ rotary-type automatic door opening mechanisms, utilizing a gear train and actuator to rotate the door around the hinge. These mechanisms occupy a large space and expose numerous components when the door is opened, negatively impacting the aesthetics. Utility Model Content

[0004] Based on this, it is necessary to provide a refrigerator electric door opening device and a refrigerator that are small in size and can stably push the door.

[0005] To solve the above technical problems, this application provides the following technical solutions:

[0006] A refrigerator electric door opening device, the refrigerator includes a body and a door, and the door is connected to the body by a hinge; the refrigerator electric door opening device includes: a base, having a sliding groove and used for being installed on the body; a driving member, installed on the base; a movable rod, arranged in the sliding groove and having a first end and a second end arranged opposite to each other, the first end being used to connect to the hinge; a connecting rod mechanism, one end of the connecting rod mechanism is connected to the driving member, and the other end is connected to the second end of the movable rod; and, under the drive of the driving member, the connecting rod mechanism can drive the first end of the movable rod to extend or retract into the sliding groove to cause the hinge to open or fold.

[0007] It is understandable that the present application sets up a connecting rod mechanism and a movable rod, and uses a driving member to drive the connecting rod mechanism and the movable rod to cause the hinge to open or fold to realize door opening. The connecting rod mechanism and the movable rod can flexibly transfer the direction of force after being connected. When opening the door, the driving force of the driving member can be converted into the interaction force between the rods in a small space, and finally converted into a thrust on the hinge to push the door open, thereby reducing the space occupied by the electric door opening device when opening the door and making it smaller in size. In addition, by pushing the hinge to cause the refrigerator door to open, only the movable rod is exposed outside during the door opening process, which not only enables the door to be pushed open more smoothly and achieves the effect of fully opening the door, but also makes it more beautiful.

[0008] In one embodiment, a first sliding block is provided at the second end of the movable rod, and the first sliding block is slidably engaged with the sliding groove;

[0009] One end of the connecting rod mechanism away from the driving member is fixedly connected to the first sliding block.

[0010] In one embodiment, the sliding groove is arranged in an arc shape, and the shape of the first sliding block is matched with the shape of the sliding groove.

[0011] In one embodiment, the connecting rod mechanism includes a first connecting rod, a second connecting rod and a third connecting rod, one end of the first connecting rod is movably connected to the output end of the driving member, one end of the second connecting rod is hinged to the first connecting rod, and the other end is hinged to the third connecting rod, one end of the third connecting rod is rotatably connected to the base, and the other end is fixed to the slider.

[0012] It can be understood that the connecting rod mechanism includes a first connecting rod, a second connecting rod and a third connecting rod. This multi-link design can effectively transmit the power of the driving member to the movable rod in a smaller space, further reducing the space occupied by the electric door opening device when opening the door.

[0013] In one embodiment, a fixed block is provided at the output end of the driving member, an end of the first connecting rod away from the second connecting rod is rotatably connected to a second slider, and the second slider is slidably connected to the fixed block;

[0014] Wherein, the driving direction of the driving member is set at an angle to the sliding direction of the second sliding block.

[0015] It is understood that the sliding connection between the fixed block and the second slider makes the power output of the driving member more stable. The angled arrangement of the driving direction and the sliding direction optimizes the transmission of force and motion conversion, and can effectively reduce the overall occupied volume.

[0016] In one embodiment, the fixed block is provided with a slide rail, and the extension direction of the slide rail is set at an angle with the driving direction of the driving member; the second sliding block is provided with a slide groove, and the slide rail is slidably matched with the slide groove.

[0017] In one embodiment, a first mounting groove is further defined on the second sliding block, and an end of the first connecting rod away from the second connecting rod is rotatably connected to the first mounting groove.

[0018] In one embodiment, a second mounting groove is further provided on the base, and the driving member is installed in the second mounting groove.

[0019] This application also provides the following technical solutions:

[0020] A refrigerator comprises a body, a door and an electric door opening device for the refrigerator as described in any of the above embodiments, wherein the door is connected to the body via a hinge, and the electric door opening device for the refrigerator is installed on the body and connected to the hinge.

[0021] In one embodiment, the refrigerator further includes a detection sensor, which is electrically connected to the driving member by a signal and is used to detect whether there is an obstacle during the opening process of the refrigerator door.

[0022] It is understandable that by setting a detection sensor on the door, when the door is opened, the detection sensor can monitor whether there is an obstacle in front of the door and then determine whether to continue to control the push rod motor to push out or pause, so that the refrigerator has an anti-collision function.

[0023] Compared to the prior art, the electric door opening device for refrigerators utilizes a connecting rod mechanism and a movable rod, which are driven by a driver to cause the hinge to open or fold, thereby opening the door. Once connected, the connecting rod mechanism and the movable rod can flexibly shift the direction of force. When opening the door, the driving force of the driver can be converted into an interaction force between the rods within a relatively small space, ultimately converting it into a thrust on the hinge to push the door open. This reduces the space occupied by the electric door opening device during door opening, resulting in a smaller size. Furthermore, by pushing the hinge to open the refrigerator door, only the movable rod is exposed during the door opening process, enabling the door to be pushed open more smoothly and fully opened, while also being more aesthetically pleasing. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the conventional technology, the following briefly introduces the drawings required for use in the embodiments or the conventional technology descriptions. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0025] Figure 1 This is a schematic diagram of the structure of the refrigerator door closing provided in this application.

[0026] Figure 2 This is a schematic diagram of the structure of the refrigerator door provided in this application.

[0027] Figure 3 This is a structural schematic diagram of the refrigerator electric door opening device provided in this application in the closed door state from one perspective.

[0028] Figure 4 This is a structural schematic diagram of the refrigerator electric door opening device provided in this application in the closed door state from another perspective.

[0029] Figure 5 For this application Figure 4Enlarged view of point A in the middle.

[0030] Figure 6 This is a structural schematic diagram of the electric door opening device provided in this application in the open state from one perspective.

[0031] Figure 7 A schematic diagram of the detection sensor scanning area is provided for this application.

[0032] The reference numerals of the components are as follows:

[0033] 100. Electric door opening device for refrigerator; 10. Base; 11. Sliding groove; 12. Second mounting groove; 20. Driving member; 21. Output end; 22. Fixed block; 221. Slide rail; 30. Movable rod; 30a. First end; 30b. Second end; 31. First slider; 40. Connecting rod mechanism; 41. First connecting rod; 411. Second slider; 412. Sliding groove; 413. First mounting groove; 42. Second connecting rod; 43. Third connecting rod; 431. Adapter groove; 200. Refrigerator; 210. Cabinet body; 220. Door; 230. Hinge. DETAILED DESCRIPTION

[0034] To make the above-mentioned objects, features, and advantages of the present application more clearly understood, the specific embodiments of the present application are described in detail below with reference to the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways than those described herein, and those skilled in the art can make similar improvements without violating the scope of the present application. Therefore, the present application is not limited to the specific embodiments disclosed below.

[0035] It should be noted that when a component is referred to as being "fixed to" or "disposed on" another component, it may be directly on the other component or there may be a central component. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may be a central component at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in the specification of this application are for illustrative purposes only and do not represent the only implementation method.

[0036] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of such features. Throughout the description of this application, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0037] In this application, unless otherwise expressly specified or limited, a first feature being “above” or “below” a second feature may mean that the first feature is directly in contact with the second feature, or that the first feature and the second feature are indirectly in contact through an intermediate medium. Furthermore, a first feature being “above,” “above,” or “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below,” “below,” or “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0038] Unless otherwise defined, all technical and scientific terms used in the specification of this application have the same meaning as commonly understood by those skilled in the art to which this application belongs. The terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used in the specification of this application includes any and all combinations of one or more of the relevant listed items.

[0039] See also Figure 1 and Figure 2 The present application provides a refrigerator electric door opening device 100, wherein the refrigerator 200 includes a body 210 and a door 220, and the door 220 is connected to the body 210 through a hinge 230. The refrigerator electric door opening device 100 is installed on the top of the body 210 and is connected to the hinge 230, and is used to open / close the hinge 230 to realize the opening or closing of the door 220.

[0040] like Figures 3 to 6As shown, the electric door opening device 100 of a refrigerator includes a base 10, a driving member 20, a movable rod 30, and a connecting rod mechanism 40. The base 10 has a sliding groove 11 and is used to be installed in the box body 210; the driving member 20 is installed on the base 10; the movable rod 30 is arranged in the sliding groove 11 and has a first end 30a and a second end 30b arranged opposite to each other, and the first end 30a is used to connect to the hinge 230; one end of the connecting rod mechanism 40 is connected to the driving member 20, and the other end is connected to the second end 30b of the movable rod 30; and under the drive of the driving member 20, the connecting rod mechanism 40 can drive the first end 30a of the movable rod 30 to extend or retract from the sliding groove 11, thereby causing the hinge 230 to open or fold. In this way, by providing the connecting rod mechanism 40 and the movable rod 30, the driving member 20 drives the connecting rod mechanism 40 and the movable rod 30 to cause the hinge 230 to open or fold to achieve door opening. Here, the connecting rod mechanism 40 is used to convert the motion characteristics, so that the direction of the force can be flexibly transferred after the connecting rod mechanism 40 and the movable rod 30 are connected. When opening the door, the driving force of the driving member 20 can be converted into the interaction force between the rods in a smaller space, and finally converted into a thrust on the hinge 230 to push the door open, thereby reducing the space occupied by the electric door opening device when opening the door and making it smaller in size; and, by pushing the hinge 230 to open the refrigerator door, only the movable rod 30 is exposed outside during the door opening process, which not only can the door be pushed open more smoothly and the full door opening effect can be achieved, but also it is more beautiful.

[0041] like Figure 3 and Figure 4 As shown, a second mounting groove 12 is further provided on the base 10, and the driving member 20 is installed in the second mounting groove 12, so that the volume occupied by the driving member 20 in the height direction of the refrigerator can be reduced, and the volume of the refrigerator electric door opening device 100 can be further reduced.

[0042] The driving member 20 can be configured as an execution structure such as a pneumatic cylinder or an oil cylinder.

[0043] In one embodiment, if Figure 4 As shown, the second end 30b of the movable rod 30 is provided with a first slider 31, which is slidably engaged with the sliding groove 11; the end of the connecting rod mechanism 40 away from the driving member 20 is slidably fixedly connected to the first slider 31.

[0044] As preferably, the shape of the first sliding block 31 is matched with the shape of the sliding groove 11. Here, the sliding groove 11 is arranged to be mutually opposite, and accordingly, the first sliding block 31 is also arranged to be an arc block.

[0045] like Figure 3 、 Figure 4 as well as Figure 6As shown, the linkage mechanism 40 includes a first linkage 41, a second linkage 42, and a third linkage 43. One end of the first linkage 41 is movably connected to the output end 21 of the driving member 20. One end of the second linkage 42 is hinged to the first linkage 41, and the other end is hinged to the third linkage 43. One end of the third linkage 43 is rotatably connected to the base 10, and the other end is fixed to the first slider 31. Here, this multi-link design can effectively transmit the power of the driving member to the movable rod 30 in a smaller space, further reducing the space occupied by the electric door opener when opening the door.

[0046] Here, the first connecting rod 41 is configured as an active rod, which moves in response to the power output of the driving member 20. The second connecting rod 42 serves as a transfer rod, and the third connecting rod 43 serves as an output rod and is connected to the movable rod 30 to drive the movable rod 30 to rotate, thereby driving the hinge 230 to open or close.

[0047] For further information, please refer to Figure 4 and Figure 5 The end of the first connecting rod 41 away from the second connecting rod 42 is rotatably connected to the second slider 411. The output end 21 of the driver 20 is provided with a fixed block 22, and the second slider 411 is slidably connected to the fixed block 22. The driving direction of the driver 20 is set at an angle to the sliding direction of the second slider 411. In this way, the use of the fixed block 22 and the second slider 411 to achieve the driving direction of the driver 20 can further make the connection between the connecting rod mechanism 40 and the driver 20 more compact, effectively reducing the overall space occupied.

[0048] Here, the driving direction of the driving member 20 is set at 90 degrees to the sliding direction of the second slider 411. Of course, it is not limited to this, and the angle between the two can also be set to 85, 80 degrees, etc.

[0049] like Figure 5 As shown, a slide groove 412 is provided on the second slider 411 , and a slide rail 221 is provided on the fixed block 22 . The extension direction of the slide rail 221 is set at an angle to the driving direction of the driving member 20 , and the slide rail 221 is slidably matched with the slide groove 412 .

[0050] Furthermore, a first mounting groove 413 is defined on the second sliding block 411 , and one end of the first connecting rod 41 away from the second connecting rod 42 is rotatably connected to the first mounting groove 413 .

[0051] The third connecting rod 43 is rotatably connected to the base 10 via a rotating shaft. A transfer groove 431 is formed on the third connecting rod 43, and an end of the second connecting rod 42 away from the first connecting rod 41 is rotatably mounted in the transfer groove 431.

[0052] like Figure 1 and Figure 2As shown, the refrigerator 200 provided by the present application also includes a detection sensor (not shown), which is electrically connected to the drive member 20 and is used to detect whether there is an obstacle. In this way, by providing a detection sensor on the door 220, when the door 220 is opened, the detection sensor can monitor whether there is an obstacle in front of the door 220, and then determine whether to continue to control the drive member 20 to push out or pause, so that the refrigerator 200 has an anti-collision function during the automatic door opening process.

[0053] In one embodiment, reference Figure 7 Since the door 220 is hinged to the housing 210, its motion trajectory is fixed and does not change significantly under normal circumstances. Therefore, the required scanning area of ​​the detection sensor is fixed. The plane formed by the door 220 width 1 and the door 220 height h rotates through an angle α, which is the motion trajectory of the refrigerator door. Here, the detection sensor scans for obstacles within a 3cm area in front of the door 220 plane during its movement. If there are no obstacles, the driver 20 continues to operate. Otherwise, the driver 20 stops to avoid hitting any obstacles. Of course, the detection sensor's scanning area is not limited to 3cm and can also be 4cm or 5cm. The specific setting can be based on actual conditions.

[0054] In one embodiment, the opening of door 220 is achieved via a pressure sensor, controller, and electric refrigerator door opening device 100 on housing 210. When door 220 is pressed, the head of the pressure sensor deforms, and the sensor receives a door-opening signal. The controller detects this signal and controls the driver 20 to move the linkage 40, pushing against hinge 230 and thus opening door 220. The pressure sensor and controller, as well as the control logic between them, are conventional and will not be elaborated upon here.

[0055] Here, when setting the parameters, in order to avoid opening the door due to accidental touch, the force value of the pressure sensor can be set to be slightly larger before the controller is started to operate the subsequent driving member 20. Here, the force value of the pressure sensor can be set to 10N, 12N, etc.

[0056] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0057] The above-described embodiments merely represent several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that a person of ordinary skill in the art may make various modifications and improvements without departing from the spirit of the present application, all of which fall within the scope of protection of the present application. Therefore, the scope of patent protection for the present application shall be determined by the appended claims.

Claims

1. A refrigerator electric door opening device, the refrigerator comprising a refrigerator body (210) and a door (220), wherein the door (220) is connected to the refrigerator body (210) via a hinge (230); characterized in that: The electric door opening device for refrigerator comprises: A base (10) having a sliding groove (11) and used for being installed on the box (210); A driving member (20) is mounted on the base (10); a movable rod (30) disposed in the sliding groove (11) and having a first end (30a) and a second end (30b) disposed opposite to each other, wherein the first end (30a) is used for connecting to the hinge (230); A connecting rod mechanism (40), one end of which is connected to the driving member (20), and the other end of which is connected to the second end (30b) of the movable rod (30); and under the drive of the driving member (20), the connecting rod mechanism (40) can drive the first end (30a) of the movable rod (30) to extend or retract into the sliding groove (11), so as to cause the hinge (230) to open or fold.

2. The electric door opening device for refrigerator according to claim 1, characterized in that: The second end (30b) of the movable rod (30) is provided with a first sliding block (31), and the first sliding block (31) is slidably engaged with the sliding groove (11); One end of the connecting rod mechanism (40) away from the driving member (20) is slidably and fixedly connected to the first sliding block (31).

3. The electric door opening device for refrigerator according to claim 2, characterized in that: The sliding groove (11) is arranged in an arc shape, and the shape of the first sliding block (31) is arranged to match the shape of the sliding groove (11).

4. The electric door opening device for refrigerator according to claim 2, characterized in that: The connecting rod mechanism (40) includes a first connecting rod (41), a second connecting rod (42) and a third connecting rod (43), one end of the first connecting rod (41) is movably connected to the output end (21) of the driving member (20), one end of the second connecting rod (42) is hinged to the first connecting rod (41), and the other end is hinged to the third connecting rod (43), one end of the third connecting rod (43) is rotatably connected to the base (10), and the other end is fixed to the first slider (31).

5. The electric door opening device for refrigerator according to claim 4, characterized in that: The output end (21) of the driving member (20) is provided with a fixed block (22); one end of the first connecting rod (41) away from the second connecting rod (42) is rotatably connected to a second sliding block (411); and the second sliding block (411) is slidably connected to the fixed block (22); Wherein, the driving direction of the driving member (20) and the sliding direction of the second sliding block (411) are set at an angle.

6. The electric door opening device for refrigerator according to claim 5, characterized in that: The fixed block (22) is provided with a slide rail (221), and the extension direction of the slide rail (221) is set at an angle with the driving direction of the driving member (20); the second sliding block (411) is provided with a slide groove (412), and the slide rail (221) is slidably matched with the slide groove (412).

7. The electric door opening device for refrigerator according to claim 6, characterized in that: The second sliding block (411) is also provided with a first installation groove (413), and one end of the first connecting rod (41) away from the second connecting rod (42) is rotatably connected to the first installation groove (413).

8. The electric door opening device for refrigerator according to claim 1, characterized in that: The base (10) is also provided with a second installation groove (12), and the driving member (20) is installed in the second installation groove (12).

9. A refrigerator, characterized in that: The invention comprises a box body (210), a box door (220), and an electric door opening device for a refrigerator according to any one of claims 1 to 8, wherein the box door (220) is connected to the box body (210) via a hinge (230), and the electric door opening device for a refrigerator is installed on the box body (210) and connected to the hinge (230).

10. The refrigerator according to claim 9, characterized in that The refrigerator further comprises a detection sensor, which is electrically connected to the driving member (20) and is used to detect whether there is an obstacle during the opening process of the door (220).

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