Door body opening and closing structure for refrigerator and refrigerator

Abstract

The utility model relates to the technical field of refrigerators, in particular to a door body opening and closing structure for a refrigerator and the refrigerator. The refrigerator comprises a door body and a refrigerator body, the door body opening and closing structure for the refrigerator comprises a driving part, a transmission part and a driving rod, the transmission part is arranged on the refrigerator body, the driving part drives the transmission part to operate, the first end of the driving rod is connected with the transmission part, the second end of the driving rod is slidably connected with the door body, and the transmission part can drive the driving rod to move. The second end of the driving rod slides in the length direction of the door body and drives the door body to be opened or closed around a rotating shaft of the door body. The driving part can drive the driving rod to move, so that the door body is driven to be opened or closed, automatic opening and closing of the door body are achieved, the driving rod slides on the door body in the process of driving the door body to move, the force of the driving rod for driving the door body to rotate can be reduced, output of the driving part is reduced, and driving efficiency is improved.

Description

Technical Field

[0001] This application relates to the field of refrigerator technology, specifically providing a door opening and closing structure for a refrigerator and a refrigerator. Background Technology

[0002] With the continuous improvement of living standards, home appliances have become integrated into all aspects of life, and people's requirements for home appliances are also gradually increasing. As a type of home appliance, refrigerators are gradually becoming more automated to meet user needs. For example, refrigerators in the current technology are generally opened manually, which often requires a lot of force. In order to meet users' needs for labor-saving, automatic door opening and closing structures have appeared on the market. The automatic door opening and closing structure is fixedly set in the cabinet. In order to open the door at a large angle, one end of the push rod of the automatic door opening and closing structure is set at the end near the door pivot. However, the driving force required at this time is very large. Therefore, the output of the motor of the automatic door opening and closing structure is larger. In this case, the opening efficiency is low and it is easy to reduce the service life of the motor and the automatic door opening and closing structure. Summary of the Invention

[0003] This application aims to solve the aforementioned technical problems, namely, to address the issues of low opening efficiency or short service life in existing automatic door opening and closing structures.

[0004] This application provides a door opening and closing structure for a refrigerator. The refrigerator includes a cabinet and a door. The door opening and closing structure includes: a driving component; a transmission component disposed in the cabinet, the driving component driving the transmission component to operate; and a driving rod, the first end of the driving rod being connected to the transmission component, the second end of the driving rod being slidably connected to the door, the transmission component being able to drive the driving rod to move, so that the second end of the driving rod slides along the length direction of the door and drives the door to open or close around the door pivot.

[0005] In the above-mentioned optional technical solution for the door opening and closing structure of a refrigerator, the top of the door is provided with a sliding groove extending along the length direction of the door, and the second end of the drive rod is slidably disposed in the sliding groove.

[0006] In the above-mentioned optional technical solution for the door opening and closing structure of a refrigerator, when the door is closed, the second end of the drive rod abuts against the end of the slide groove away from the pivot of the door; when the door is fully open, the second end of the drive rod abuts against the end of the slide groove near the pivot of the door.

[0007] In the above-mentioned optional technical solution for the door opening and closing structure of a refrigerator, when the second end of the drive rod abuts against the end of the slide groove near the door pivot, the door is fully opened and perpendicular to the cabinet.

[0008] In the above-mentioned optional technical solution for the door opening and closing structure of a refrigerator, the transmission component includes a driving wheel, a driven wheel, and a conveyor belt rotatably disposed on the cabinet body. The conveyor belt is sleeved on the driving wheel and the driven wheel. The driving component drives the driving wheel to rotate, and the driving wheel drives the conveyor belt and the driven wheel to rotate. The driving rod is connected to the conveyor belt.

[0009] In the above-mentioned optional technical solutions for the door opening and closing structure of a refrigerator, a slide rail fixed to the cabinet is also included, and the first end of the drive rod slides within the slide rail.

[0010] In the above-mentioned optional technical solution for the door opening and closing structure of a refrigerator, the slide rail includes a top groove and a side groove that are interconnected. The side groove faces the door body, and the top groove is perpendicular to the top surface of the cabinet body. The drive rod includes a push rod and a stop. The stop is connected to the conveyor belt and slides along the top groove. The push rod slides along the side groove and is slidably connected to the slide rail.

[0011] In the above-mentioned optional technical solution for the door opening and closing structure of a refrigerator, the slide is set to be arc-shaped, and the angle formed by the push rod and the tangent of the slide at the stop remains constant.

[0012] In the above-mentioned optional technical solution for the door opening and closing structure of a refrigerator, when the door is closed, the first end of the drive rod abuts against the first end of the slide rail; when the door is fully open, the first end of the drive rod abuts against the second end of the slide rail.

[0013] This application also provides a refrigerator, including a door, a cabinet, and a door opening and closing structure as described in any of the above technical solutions.

[0014] With the above technical solution adopted, this application can drive the drive rod to move through the drive component, thereby driving the door to open or close, so as to realize the automatic opening and closing of the door. The drive rod can slide on the door during the process of driving the door to move, thereby reducing the force of the drive rod to drive the door to rotate, thus reducing the output of the drive component and improving the drive efficiency. Attached Figure Description

[0015] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments of this application and their descriptions are used to explain this application and do not constitute an improper limitation of this application.

[0016] The preferred embodiments of this application are described below with reference to the accompanying drawings, in which:

[0017] Figure 1 This is a front view of the refrigerator of this application;

[0018] Figure 2 This is a top view of the refrigerator door of the present application when it is open;

[0019] Figure 3 yes Figure 2 Enlarged view of the connection between the door opening and closing structure at point M and the top of the door;

[0020] Figure 4 This is a top view of the refrigerator door of the present application when it is closed;

[0021] Figure 5 yes Figure 4 Enlarged view of the connection between the door opening and closing structure at point P and the top of the door;

[0022] Figure 6 This is a schematic diagram of the refrigerator door of the present application when closed;

[0023] Figure 7 yes Figure 6 Enlarged view of the connection between the door opening / closing structure at point N and the top of the door;

[0024] Figure 8 This is a schematic diagram of the refrigerator with a door opening and closing structure according to this application;

[0025] Figure 9 yes Figure 8 Enlarged view of the connection between the door opening / closing structure at point Q and the top of the door.

[0026] List of reference numerals in the attached diagram:

[0027] 1. Refrigerator; 11. Cabinet; 12. Door opening and closing structure; 121. Driving component; 122. Transmission component; 1221. Driving wheel; 1222. Driven wheel; 1223. Conveyor belt; 123. Driving rod; 123a. First end of driving rod; 123b. Second end of driving rod; 1231. Push rod; 1232. Stop; 124. Slide rail; 1241. Top groove; 1242. Side groove; 124a. First end of slide rail; 124b. Second end of slide rail; 124c. Tangent of slide rail at stop; 13. Door; 131. Slide groove; 131a. End of slide groove away from door pivot; 131b. End of slide groove near door pivot; 13a. Top of door; 14. Location of door pivot. Detailed Implementation

[0028] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. In the following description relating to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The terms “first,” “second,” and similar terms used in this specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components.

[0029] Unless otherwise stated, the orientation or positional relationship indicated by “length”, “width”, “height”, “top”, “bottom”, “clockwise”, and “counterclockwise” is based on the orientation or positional relationship shown in the accompanying drawings and is only for the purpose of facilitating the description of this application and simplifying the description, and is not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0030] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intervening element. Furthermore, "connection" should be interpreted broadly; for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two elements. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0031] It should also be noted that the accompanying drawings of this application are as follows: Figure 4 , Figure 6 As shown, the x-direction represents the length of the door 13 when it is closed, and the y-direction represents the width of the door 13. Figure 4 In the equation, the z-axis is the height direction of the door body 13.

[0032] Figure 1 The image shows a refrigerator 1, which includes a cabinet 11 and a door 13, combined with... Figures 2 to 7 As shown, this application provides a door opening and closing structure 12 for a refrigerator 1. The door opening and closing structure 12 includes a driving member 121, a transmission member 122, and a driving rod 123. The driving member 121 is disposed on the cabinet 11 and drives the transmission member 122 to operate. The first end 123a of the driving rod 123 is connected to the transmission member 122, and the second end 123b of the driving rod 123 is slidably connected to the door 13. The transmission member 122 can drive the driving rod 123 to move so that the second end 123b of the driving rod 123 slides along the length direction of the door 13 and drives the door 13 to open or close around the pivot of the door 13.

[0033] Since the drive rod 123 can slide along the length of the door body 13, when the door body 13 rotates to different positions, the position of the second end 123b of the drive rod 123 connected to the door body 13 is also different. Because the door body 13 rotates around its pivot, the force applied by the drive rod 123 to drive the door body 13 to rotate varies depending on the position of the second end 123b of the drive rod 123 on the door body 13. The closer the second end 123b of the drive rod 123 is to the pivot of the door body 13, the greater the force required for the drive rod 123 to open the door body 13. The farther the second end 123b of the lever 123 is from the pivot of the door body 13, the less force is required for the lever 123 to open the door body 13. Therefore, compared with the prior art where the second end 123b of the lever 123 is fixedly connected to a position close to the pivot of the door body 13, the second end 123b of the lever 123 in this application is slidably disposed on the door body 13, which can save the force required to open or close the door body 13. Therefore, it can improve the efficiency of opening and closing the door body 13. At the same time, it can also avoid the situation where the output of the drive component 121 is too large, which will shorten the life of the drive component 121.

[0034] It should be noted that, in order to more easily show the connection relationship between the door body 13 and the door opening and closing structure 12, Figures 2 to 9 The door body 13 shown in the image only includes its top 13a, not the entire door body 13. Since the entire door body 13 is not shown, the door body 13 pivot connected to it is also not shown. Because the door body 13 pivot extends along the height of the door body 13, its position is shown in the image. Figure 2 , Figure 4 The image shows the location 14 of the pivot of the door body 13.

[0035] In one embodiment, combined with Figures 2 to 5 The top 13a of the door body 13 is provided with a slide groove 131 extending along the length direction of the door body 13, and the second end 123b of the drive rod 123 is slidably disposed in the slide groove 131. The slide groove 131 can support the second end 123b of the drive rod 123. In addition, the slide groove 131 can also guide the sliding direction of the second end 123b of the drive rod 123, so that the direction of the force applied by the drive rod 123 to the door body 13 is always in the same plane. When the second end 123b of the drive rod 123 moves along the extension direction of the slide groove 131, it can also avoid the situation where the drive rod 123 cannot open or close the door body 13 due to the misalignment of the drive rod 123.

[0036] In one embodiment, such as Figure 4 , Figure 5As shown, with the door 13 closed, the second end 123b of the drive rod 123 is connected to the end 131a of the slide groove 131 furthest from the pivot of the door 13. Because the second end 123b of the drive rod 123 is far from the pivot of the door 13, when it is necessary to open the door 13, the force provided by the drive rod 123 is relatively small to open the door 13. Figure 2 , Figure 3 As shown, when the door 13 is fully open, the second end 123b of the drive rod 123 abuts against the end 131b of the slide rail 131 near the pivot of the door 13. Since a large force is required to open the door 13 at the moment of opening, the force required by the drive rod 123 to push the door 13 during the gradual opening process can be relatively small. Therefore, during the process of pushing the door 13, the second end 123b of the drive rod 123 can gradually move towards the pivot of the door 13. When the door 13 is fully open, the second end 123b of the drive rod 123 is at the position of the slide rail 131 closest to the pivot of the door 13. At this time, the drive rod 123 near the connection between the door 13 and the box 11 will not occupy too much space, thus not affecting the user's ability to take and put in items, and improving the user experience.

[0037] In one embodiment, such as Figure 3 As shown, the transmission component 122 includes a drive wheel 1221, a driven wheel 1222, and a conveyor belt 1223 rotatably mounted on the housing 11. The conveyor belt 1223 is sleeved on the drive wheel 1221 and the driven wheel 1222. The drive component 121 drives the drive wheel 1221 to rotate, and the drive wheel 1221 drives the conveyor belt 1223 and the driven wheel 1222 to rotate. The drive rod 123 is connected to the conveyor belt 1223. During the rotation of the conveyor belt 1223, the drive rod 123 rotates synchronously, thereby realizing the automatic control of the door 13 by the door opening and closing structure 12.

[0038] It should be noted that the conveyor belt 1223 can be a belt, with the driving wheel 1221 and the driven wheel 1222 connected by the belt. The first end 123a of the drive rod 123 is fixed to a certain position on the belt. During the rotation of the belt, the drive rod 123 moves synchronously with the belt. Alternatively, the conveyor belt 1223 can be a chain, with the driving wheel 1221 and the driven wheel 1222 being gears. The driving wheel 1221 and the driven wheel 1222 are connected to the chain through meshing transmission. The first end 123a of the drive rod 123 is fixedly connected to a certain position on the chain and can move synchronously with the chain. The operation mode of the driving wheel 1221, the driven wheel 1222 and the conveyor belt 1223 is not restrictive and can be set according to the needs of those skilled in the art. All of the above are within the protection scope of this application.

[0039] In one embodiment, combined with Figures 2 to 9 The door opening and closing structure 12 also includes a slide rail 124 fixed to the housing 11 (such as...). Figure 8 , Figure 9 As shown, the first end 123a of the drive rod 123 slides within the slide rail 124. By fixing the slide rail 124 to the housing 11, the movement of the drive rod 123 can be guided, thereby ensuring the accuracy of the movement direction of the drive rod 123 and preventing the drive rod 123 from tilting during the movement.

[0040] In one embodiment, such as Figure 3 As shown, the slide rail 124 includes a top groove 1241 and a side groove 1242 that are interconnected. The side groove 1242 faces the door body 13, and the top groove 1241 is perpendicular to the top surface of the housing 11. The drive rod 123 includes a push rod 1231 and a stop 1232. The stop 1232 is connected to the conveyor belt 1223 and slides along the top groove 1241. The push rod 1231 slides along the side groove 1242 and is slidably connected to the slide groove 131. The stop 1232 is used to prevent the push rod 1231 from disengaging from the slide rail 124, thereby ensuring the stability of the connection between the push rod 1231 and the slide rail 124. The push rod 1231 is used to directly connect to the slide groove 131 of the door body 13 to apply force to the door body 13. The stop 1232 further ensures the smoothness of the movement of the drive rod 123 and the accuracy of being guided by the slide rail 124.

[0041] In one embodiment, such as Figure 2 , Figure 3 As shown, when the second end 123b of the drive rod 123 abuts against the end 131b of the slide groove 131 near the pivot of the door body 13, the door body 13 is fully open and perpendicular to the box body 11. When the door body 13 is fully open, the door body 13 is perpendicular to the box body 11. The end 131b of the slide groove 131 near the pivot of the door body 13 can stop the drive rod 123, preventing the drive rod 123 from continuing to push the door body 13 to rotate, thereby preventing the door body 13 from rotating excessively.

[0042] In one embodiment, such as Figure 4 , Figure 5 As shown, when the door 13 is closed, the first end 123a of the drive rod 123 abuts against the first end 124a of the slide rail 124. At this time, the drive rod 123 is restricted from further movement, thus preventing the drive rod 123 from being in a free state after the door 13 has rotated to the correct position, which would affect subsequent door opening. Since the second end 123b of the drive rod 123 abuts against the end 131a of the slide rail 131 away from the pivot of the door 13, by synchronously restricting both ends of the drive rod 123, excessive rotation of the drive rod 123 can be further restricted, thereby preventing the door 13 from being completely closed while the drive rod 123 is still in a free state. Figure 2 , Figure 3As shown, when the door 13 is fully open, the first end 123a of the drive rod 123 abuts against the second end 124b of the slide rail 124. At this time, the drive rod 123 is stopped by the slide rail 124 and cannot continue to move, thus ensuring that the door 13 will not move excessively after being fully open. In addition, when the first end 123a of the drive rod 123 abuts against the second end 124b of the slide rail 124, the second end 123b of the drive rod 123 abuts against the end 131b of the slide groove 131 near the pivot of the door 13. At this time, the door 13 can be further restricted from continuing to rotate, thus avoiding the problem of random shaking after the door 13 is fully open.

[0043] In one embodiment, combined with Figure 2 , Figure 3 , Figure 6 , Figure 7 The slide rail 124 is set in an arc shape. The arc-shaped slide rail 124 can make the push rod 1231 move more smoothly during the process of guiding the push rod 1231. At the same time, it can also facilitate the push rod 1231 to apply force to the door body 13. The angle α formed by the push rod 1231 and the tangent 124c of the slide rail 124 at the stop 1232 remains unchanged during the sliding process, thereby ensuring the stability of the push rod 1231 during the movement process.

[0044] In addition, this application also provides a refrigerator 1, which has a door opening and closing structure 12 for refrigerator 1 as described in any of the above embodiments. The refrigerator 1 also includes a cabinet 11 and a door 13. A driving member 121 and a transmission member 122 are disposed on the cabinet 11. The first end 123a of the driving rod 123 is connected to the transmission member 122, and the second end is slidably connected to the door 13.

[0045] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application.

Claims

1. A door opening and closing structure for a refrigerator, characterized in that, The refrigerator includes a cabinet and a door, and the door opening and closing structure includes: Drive components; A transmission component is disposed in the housing, and the driving component drives the transmission component to rotate. A drive rod, the first end of which is connected to the transmission component, and the second end of which is slidably connected to the door body. The transmission component can drive the drive rod to move so that the second end of the drive rod slides along the length of the door body and drives the door body to open or close around the door body pivot.

2. The door opening and closing structure for a refrigerator according to claim 1, characterized in that, The top of the door is provided with a sliding groove extending along the length of the door, and the second end of the drive rod is slidably disposed in the sliding groove.

3. The door opening and closing structure for a refrigerator according to claim 2, characterized in that, When the door is closed, the second end of the drive rod abuts against the end of the slide groove away from the pivot of the door. When the door is fully open, the second end of the drive rod abuts against the end of the slide groove near the pivot of the door.

4. The door opening and closing structure for a refrigerator according to claim 3, characterized in that, When the second end of the drive rod abuts against the end of the slide near the pivot of the door, the door is fully opened and perpendicular to the box.

5. The door opening and closing structure for a refrigerator according to claim 3, characterized in that, The transmission component includes a drive wheel, a driven wheel, and a conveyor belt rotatably mounted on the housing. The conveyor belt is sleeved on the drive wheel and the driven wheel. The driving component drives the drive wheel to rotate, and the drive wheel drives the conveyor belt and the driven wheel to rotate. The driving rod is connected to the conveyor belt.

6. The door opening and closing structure for a refrigerator according to claim 5, characterized in that, It also includes a slide rail fixed to the housing, and the first end of the drive rod slides within the slide rail.

7. The door opening and closing structure for a refrigerator according to claim 6, characterized in that, The slide rail includes a top groove and a side groove that are interconnected. The side groove faces the door body, and the top groove is perpendicular to the top surface of the box body. The drive rod includes a push rod and a stop. The stop is connected to the conveyor belt and slides along the top groove. The push rod slides along the side groove and is slidably connected to the slide rail.

8. The door opening and closing structure for a refrigerator according to claim 7, characterized in that, The slide is arc-shaped, and the angle formed by the push rod and the tangent of the slide at the stop remains constant.

9. The door opening and closing structure for a refrigerator according to claim 6, characterized in that, When the door is closed, the first end of the drive rod abuts against the first end of the slide rail; when the door is fully open, the first end of the drive rod abuts against the second end of the slide rail.

10. A refrigerator, characterized in that, It includes a door body, a housing, and the door opening and closing structure described in any one of claims 1 to 9.

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