Hinge assembly and refrigerator

Abstract

According to the hinge assembly and the refrigerator, the hinge assembly comprises a hinge, a first guide column and a second guide column, the hinge is fixedly installed on a refrigerator body, and a first track groove and a second track groove which are independent of each other are formed in the hinge; the first guide column is fixedly mounted on the door body, and the first guide column and the first track groove are matched in an inserted mode and are used as a guide to guide the door body to rotate relative to the box body; the second guide column is fixedly installed on the door body, the second guide column can be matched with the second track groove in an inserted mode, and the second guide column can be driven by the door body to be separated from the second track groove and enable the second guide column to be separated from the hinge. In this way, on one hand, the door body can be prevented from colliding with the cabinet due to the too large rotating angle in the process of opening the door body from the box body, on the other hand, the second guide column is not subjected to friction resistance of the hinge in the process of rotating along with the door body, in this way, noise generated in the process of opening the door body from the box body can be reduced, and the door opening smoothness of the door body is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field related to household appliances, and in particular relates to a hinge assembly and a refrigerator. Background Art

[0002] At present, the refrigerator is embedded in the cabinet to achieve embedded installation and use, which is limited by the space of the cabinet. In order to ensure that the upper door of the refrigerator can be opened effectively, the corner of the door body must not exceed the size of the cabinet too much during the door opening process to prevent the door body from colliding with the cabinet. At present, existing refrigerators usually adopt a dual-axis track solution to guide the door body to open to prevent the door body from colliding with the cabinet during the opening process. However, most of the current dual-axis tracks have complex shapes, and during the movement of the door body, due to the simultaneous contact of the dual axes and the track, there will be problems such as abnormal noise and poor smoothness. Utility Model Content

[0003] In view of this, it is necessary to provide a hinge assembly and a refrigerator for solving the above-mentioned technical problems.

[0004] A hinge assembly, the hinge assembly comprising:

[0005] A hinge is fixedly mounted on the box body, and a first track groove and a second track groove are formed on the hinge, wherein the second track groove is independently arranged relative to the first track groove;

[0006] A first guide post is fixedly mounted on the door body, the first guide post is plugged into and matched with the first track groove, and guides the door body to rotate relative to the box body.

[0007] A second guide post is fixedly mounted on the door body, the second guide post can be plugged and matched with the second track groove, and the second guide post can be disengaged from the second track groove under the drive of the door body, so that the second guide post is disengaged from the hinge;

[0008] When the second guide post is plugged into and matched with the second track groove, the second track groove can guide the door body to rotate relative to the box body.

[0009] It can be understood that the first track groove and the second track groove on the hinge are used to guide the door body to rotate, which can prevent the door body from colliding with the cabinet due to excessive rotation angle during the process of opening it from the box body. In this process, since the second guide column will disengage from the second track groove, the second guide column will not be affected by the friction resistance of the hinge while following the rotation of the door body. This will reduce the noise of the door body in the process of opening it from the box body and improve the smoothness of opening the door.

[0010] In one embodiment, the second track groove includes a first groove portion and a second groove portion, the first groove wall of the first groove portion is connected to the second groove wall of the second groove portion and forms an arc surface, and the arc surface can be arranged close to the second guide post to guide the second guide post to rotate with the door body;

[0011] Wherein, the second guide column can be separated from the hinge through the second groove portion.

[0012] It can be understood that, by utilizing the contact between the arc surface and the second guide post, the second track groove can guide the rotation of the second guide post and realize the rotation of the second guide post to disengage from the second track groove.

[0013] In one embodiment, the groove width of the second groove portion is greater than the groove width of the first groove portion.

[0014] It can be understood that the second guide post can be separated from the second track groove from the second groove portion with a larger groove width, which can ensure the smoothness of the second guide post when entering and exiting the second track groove.

[0015] In one embodiment, the first groove portion has a stop wall, and the stop wall is arranged on a side of the first groove portion away from the second groove portion;

[0016] The stop wall can abut against the second guide post to limit the rotation of the second guide post following the door body.

[0017] It is understandable that the second guide column is limited in rotation by the contact between the stop wall on the first groove and the second guide column, so that the maximum angle of the door body when it is opened from the box body can be limited to ensure that the door body does not collide with the cabinet.

[0018] In one embodiment, the distance between the first track groove and the first groove portion is set to H, wherein H≥3.5 mm.

[0019] It can be understood that, through the above-mentioned structural setting, the structural strength of the hinge can be ensured to meet the use requirements of the hinge for guiding and limiting the opening of the door.

[0020] In one embodiment, the rotation radius of the first guide post when rotating in the first track groove is set to R, the rotation radius of the second guide post when rotating in the second groove portion is set to S, and R>S+19mm.

[0021] It can be understood that, through the above-mentioned structural arrangement, conditions are created for the rotation of the door body when it is opened from the box body, so as to meet the use requirements of the hinge to guide and limit the opening of the door body.

[0022] In one embodiment, the first track groove includes a groove end wall, and the first guide column can be close to and rotate against the groove end wall, and use the end wall as a rotation center to control the rotation of the door body.

[0023] It can be understood that, through the above-mentioned structural arrangement, the door body can rotate with the first guide column as the rotation center during the process of opening from the box body, which can meet the use requirements of opening the door body from the box body.

[0024] In one embodiment, when the door body rotates with the first guide column as the rotation center, the distance B between the center line of the first guide column and the upper corner of the door body is smaller than the distance C between the center line of the first guide column and the cabinet, wherein the door body is installed in the cabinet in an embedded manner.

[0025] It can be understood that, through the above-mentioned structural setting, it can be ensured that when the door body is opened from the box body, the upper corner of the door body will not interfere with the cabinet, and the door body can be prevented from colliding with the cabinet.

[0026] The present application also seeks to protect a refrigerator that is installed in a cabinet in an embedded manner; it includes a box body, a door body, and the hinge assembly described above, the hinge being fixedly installed on the box body, and the first guide post and the second guide post being fixedly installed on the door body.

[0027] In one embodiment, the refrigerator further comprises a door seal, and the door body can be sealed with the cabinet through the door seal;

[0028] Wherein, the thickness of the door seal is greater than 10 mm.

[0029] It can be understood that, through the structural setting of the above-mentioned door seal, the sealing between the door body and the box body can be ensured when the door body is closed, thereby preventing the leakage of cold air inside the box body.

[0030] Due to the application of the above technical solution, the utility model has the following advantages compared with the prior art:

[0031] The hinge assembly and refrigerator for which protection is sought in the present application use the first track groove and the second track groove on the hinge to guide the door body to rotate, thereby preventing the door body from colliding with the cabinet due to excessive rotation angle during the process of opening from the cabinet. During this process, since the second guide post will disengage from the second track groove, the second guide post will not be subject to the friction resistance of the hinge while following the rotation of the door body, thereby reducing the noise of the door body during the process of opening from the cabinet and improving the smoothness of opening the door. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the conventional technology, the drawings required for use in the embodiments or the conventional technology descriptions are briefly introduced below. 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.

[0033] Figure 1 This is a schematic diagram of the structure of a hinge assembly provided in one embodiment of the present application when applied to a refrigerator.

[0034] Figure 2 This is a schematic diagram of the structure of the door body of the present application in the first state.

[0035] Figure 3 This is a schematic diagram of the structure of the door body of the present application in the second state.

[0036] Figure 4 This is a schematic diagram of the structure of the door body of the present application in the third state.

[0037] Figure 5 This is a schematic diagram of the structure of the door body of the present application in the fourth state.

[0038] Figure numerals: 100, hinge assembly; 10, hinge; 11, first track groove; 111, groove end wall; 12, second track groove; 121, first groove portion; 1211, first groove wall; 1212, stop wall; 122, second groove portion; 120, arc surface; 1221, second groove wall; 20, first guide column; 30, second guide column; 200, door body; 210, corner; 220, side wall; 300, box body; 400, cabinet; 500, door seal. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0040] It should be noted that when an element is referred to as being "provided on" another element, it may be directly provided on the other element or there may be a central element. When an element is considered to be "provided on" another element, it may be directly provided on the other element or there may be a central element at the same time. When an element is considered to be "fixed to" another element, it may be directly fixed to the other element or there may be a central element at the same time.

[0041] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0042] like Figure 1 As shown, the hinge assembly 100 included in the application request is applied to a refrigerator, and is used to guide and limit the rotation of the refrigerator door 200 when it is opened from the box body 300, so as to prevent the door 200 from interfering with the cabinet 400 during the process of opening from the box body 300, and meet the use requirements of the refrigerator being placed in the cabinet in an embedded manner.

[0043] like Figures 1 to 5 As shown, a hinge assembly 100 provided in an embodiment of the present application includes a hinge 10, a first guide post 20 and a second guide post 30. The hinge 10 is fixedly mounted on a box body 300. A first track groove 11 and a second track groove 12 are provided on the hinge 10. The second track groove 12 is independently arranged relative to the first track groove 11. The first guide post 20 is fixedly mounted on a door body 200. The first guide post 20 is plugged and matched with the first track groove 11, and the first guide post 20 is used as a guide to guide the door body 200 to rotate relative to the box body 300. The second guide post 30 is fixedly mounted on the door body 200. The second guide post 30 can be plugged and matched with the second track groove 12, and the second guide post 30 can be disengaged from the second track groove 12 under the drive of the door body 200, and the second guide post 30 is disengaged from the hinge 10. When the second guide post 30 is plugged and matched with the second track groove 12, the second track groove 12 can guide the door body 200 to rotate relative to the box body 300.

[0044] It can be understood that when the user drives the door body 200 to open from the box body 300, the first track groove 11 and the second track groove 12 on the hinge 10 can guide the door body 200 to rotate, thereby preventing the door body 200 from colliding with the cabinet 400 due to excessive rotation angle during the process of opening from the box body 300. In this process, since the second guide column 30 will be disengaged from the second track groove 12, the second guide column 30 will not be subject to the friction resistance of the hinge 10 while following the rotation of the door body 200. This will reduce the noise of the door body 200 during the process of opening from the box body 300 and improve the smoothness of the door opening.

[0045] like Figures 2 to 5As shown, the first track groove 11 includes a groove end wall 111, and the first guide post 20 can be attached to the groove end wall 111 and rotate, and use this as the rotation center to control the rotation of the door body 200. When the door body 200 is opened from the box body 300, the first guide post 20 will first move along the path of the first track groove 11 until the first guide post 20 is attached to the groove end wall 111, and then rotate with the first guide post 20 as the rotation center, which can meet the use requirements of opening the door body 200 from the box body 300.

[0046] As preferably, Figure 4 As shown, when the door body 200 rotates with the second guide post 30 as the rotation center, the distance B between the center line of the first guide post 20 and the upper corner 210 of the door body 200 is less than the distance C between the center line of the first guide post 20 and the cabinet 400, that is, B<C. This ensures that the upper corner 210 of the door body 200 will not interfere with the cabinet 400 during the process of opening the door body 200 from the box body 300, and prevents the door body 200 from colliding with the cabinet 400.

[0047] like Figure 2 , Figure 3 As shown, the second track groove 12 includes a first groove portion 121 and a second groove portion 122, and the first groove wall 1211 of the first groove portion 121 is connected to the second groove wall 1221 of the second groove portion 122 and forms an arc surface 120, and the arc surface 120 can be arranged close to the second guide post 30, and is used to guide the second guide post 30 to rotate with the door body 200. In other words, the second track groove 12 can use the arc surface 120 to guide the movement of the second guide post 30, and realize the auxiliary guidance constraint on the opening of the door body 200. Here, the second guide post 30 can be separated from the hinge 10 through the second groove portion 122, and the rotation of the second guide post 30 disengaging from the second track groove 12 is realized.

[0048] As preferably, Figures 2 to 5 As shown, the width of the second groove portion 122 is greater than the width of the first groove portion 121. That is, the second guide post 30 can be separated from the second track groove 12 from the second groove portion 122 with a larger groove width, thus ensuring the smoothness of the second guide post 30 when entering and exiting the second track groove 12.

[0049] like Figure 2 , Figure 3 and Figure 5 As shown, the first groove portion 121 has a stop wall 1212, and the stop wall 1212 is arranged on a side of the first groove portion 121 away from the second groove portion 122; and the stop wall 1212 can abut against the second guide column 30, and is used to limit the rotation of the second guide column 30 following the door body 200. In this way, the maximum angle of the door body 200 when it is opened from the box body 300 can be limited to ensure that the door body 200 will not collide with the cabinet 400.

[0050] like Figure 2 As shown, the distance between the first track groove 11 and the first groove portion 121 is set to H, where H≥3.5 mm, so as to ensure the structural strength of the hinge 10 to meet the use requirements of the hinge 10 for guiding and limiting the opening of the door body 200.

[0051] like Figure 3 As shown, the rotation radius of the first guide column 20 when rotating in the first track groove 11 is set to R, and the rotation radius of the second guide column 30 when rotating in the second groove portion 122 is set to S, and R>S+19mm. This creates conditions for the rotation of the door body 200 when it is opened from the box body 300, thereby meeting the use requirements of the hinge 10 to guide and limit the opening of the door body 200.

[0052] In addition, the present application also provides a refrigerator, comprising a box body 300, a door body 200, and the hinge assembly 100 described above, wherein the hinge 10 is fixedly mounted on the box body 300, and the first guide post 20 and the second guide post 30 are both fixedly mounted on the door body 200. Here, there are two hinge assemblies 100, and the two hinge assemblies 100 are arranged on the upper and lower sides of the door body 200. It should be noted that the first guide post 20 and the second guide post 30 described above can share a base (not shown), and are fixedly mounted to the door body 200 through the base.

[0053] like Figure 2 As shown, the refrigerator further includes a door seal 500, through which the door body 200 can be sealed with the box body 300; wherein, the thickness of the door seal 500 is greater than 10 mm, so as to ensure the seal between the door body 200 and the box body 300 when the door body 200 is closed, and prevent the leakage of cold air inside the box body 300. It should be noted that when the refrigerator is placed in the cabinet 400, the distance between a side wall 220 of the door body 200 close to the inside of the cabinet 400 and the cabinet 400 needs to be at least 4 mm. Under this condition, the side wall 220 of the door body 200 will not interfere with the cabinet 400 when the door body 200 is opened from the box body 300. When the hinge 10 of the present application is fixed and restricted on the box body 300, the door body 200 rotates or loosens when opening or closing, and the first guide column 20 and the second guide column 30 on the door body 200 are inserted into the corresponding first track groove 11 and the second track groove 12 on the hinge 10, so that the door body 200 will not fall off the box body 300. There is a distance of 10 mm between the door body 200 and the box body 300, and the box body 300 is sealed by the door seal 500 provided on the door body 200.

[0054] As can be seen from the above, the door body 200 of the present application has four states representing key trajectories during the process from closing to opening. Figure 2As shown, when the door body 200 is in the first state and the box body 300 is closed, the door seal 500 is strongly adsorbed on the box body 300 due to the magnets provided inside, and the first track groove 11 on the hinge 10 is used to constrain the first guide post 20 on the door body 200 to ensure that the door body 200 moves on the first track groove 11; the second track groove 12 on the hinge 10 serves as an auxiliary track to ensure that the second guide post 30 on the door body 200 acts as a stopper in the second track groove 12 and prevents the door body 200 from shaking. Figure 3 As shown, when the door body 200 is in the second state, the door body 200 drives the first guide post 20 and the second guide post 30 to move in the corresponding first track groove 11 and the second track groove 12 during the opening process, and the door body 200 will rotate according to the center of the circle outside the door body 200 to move the door body 200 inwardly away from the cabinet 400, creating conditions for the rotation of the door body 200. Figure 4 As shown, in the third state of the door body 200, when the first guide post 20 on the door body 200 moves to the groove end wall 111 of the first track groove 11, and takes this as the new rotation center, the door body 200 can continue to be driven to rotate until the distance B between the center line of the first guide post 20 and the corner 210 on the door body 200 is smaller than the distance C between the center line of the first guide post 20 and the cabinet 400, so that the corner 210 of the door body 200 will not interfere with the cabinet 400 during rotation. Figure 5 As shown, when the door body 200 rotates to the maximum angle, the second guide post 30 on the door body 200 will be restricted by the stop wall 1212 of the second track groove 12 and cannot rotate further, thereby ensuring that the door body 200 will not collide with the cabinet 400.

[0055] The technical features of the above embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above 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.

[0056] Those skilled in the art should recognize that the above embodiments are only used to illustrate the present invention, and are not intended to limit the present invention. As long as they are within the spirit of the present invention, appropriate changes and modifications to the above embodiments are within the scope of protection required by the present invention.

Claims

1. A hinge assembly, characterized in that: The hinge assembly (100) comprises: A hinge (10) is fixedly mounted on the box (300), wherein the hinge (10) is provided with a first track groove (11) and a second track groove (12), wherein the second track groove (12) is independently arranged relative to the first track groove (11); A first guide post (20) is fixedly mounted on the door body (200), wherein the first guide post (20) is plugged into and matched with the first track groove (11) and guides the door body (200) to rotate relative to the box body (300); A second guide post (30) is fixedly mounted on the door body (200), the second guide post (30) can be plugged into and matched with the second track groove (12), and the second guide post (30) can be driven by the door body (200) to detach from the second track groove (12), and the second guide post (30) can be detached from the hinge (10); When the second guide column (30) is plugged into and matched with the second track groove (12), the second track groove (12) can guide the door body (200) to rotate relative to the box body (300).

2. The hinge assembly according to claim 1, characterized in that: The second track groove (12) comprises a first groove portion (121) and a second groove portion (122); a first groove wall (1211) of the first groove portion (121) is connected to a second groove wall (1221) of the second groove portion (122) and forms an arc surface (120); the arc surface (120) can be arranged close to the second guide column (30) to guide the second guide column (30) to rotate along with the door body (200); The second guide column (30) is capable of detaching from the hinge (10) via the second groove portion (122).

3. The hinge assembly according to claim 2, characterized in that: The groove width of the second groove portion (122) is greater than the groove width of the first groove portion (121).

4. The hinge assembly according to claim 2, characterized in that: The first groove portion (121) has a stop wall (1212), and the stop wall (1212) is arranged on a side of the first groove portion (121) away from the second groove portion (122); The stop wall (1212) can abut against the second guide column (30) to limit the rotation of the second guide column (30) following the door body (200).

5. The hinge assembly according to claim 2, characterized in that: The distance between the first track groove (11) and the first groove portion (121) is set to H, where H≥3.5 mm.

6. The hinge assembly according to claim 2, characterized in that: The rotation radius of the first guide column (20) when rotating in the first track groove (11) is set to R, the rotation radius of the second guide column (30) when rotating in the second groove portion (122) is set to S, and R>S+19mm.

7. The hinge assembly according to claim 1, characterized in that: The first track groove (11) comprises a groove end wall (111), and the first guide column (20) can be close to the groove end wall (111) and rotate, and control the rotation of the door body (200) with the groove end wall (111) as the rotation center.

8. The hinge assembly according to claim 7, characterized in that: When the door body (200) rotates with the first guide column (20) as the rotation center, the distance B between the center line of the first guide column (20) and the upper corner (210) of the door body (200) is smaller than the distance C between the center line of the first guide column (20) and the cabinet (400), wherein the door body (200) is installed in the cabinet (400) in an embedded manner.

9. A refrigerator installed in a cabinet (400) in an embedded manner; characterized in that: It comprises a box body (300), a door body (200), and a hinge assembly (100) as described in any one of claims 1 to 8, wherein the hinge (10) is fixedly mounted on the box body (300), and the first guide column (20) and the second guide column (30) are both fixedly mounted on the door body (200).

10. The refrigerator according to claim 9, characterized in that: The refrigerator further comprises a door seal (500), and the door body (200) can be sealed with the box body (300) through the door seal (500); Wherein, the thickness of the door seal (500) is greater than 10 mm.

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