Hinge mechanism and refrigeration device

Abstract

This invention provides a hinge mechanism and a refrigeration device. The hinge mechanism includes: a fixed seat fixed to a housing, the fixed seat having one of a hinge shaft and a shaft groove; a movable seat fixed to a door, the movable seat having the other of a hinge shaft and a shaft groove, the shaft groove including a first shaft groove having a first end and a second end opposite to each other, wherein when the movable seat rotates relative to the fixed seat to a maximum preset angle, the hinge shaft is located at the first end; and a drive assembly disposed on the same side as the shaft groove, wherein after the movable seat rotates relative to the fixed seat to a maximum preset angle, the drive assembly drives the hinge shaft to move relative to the first shaft groove toward the second end to drive the movable seat to translate; and after the door rotates to its maximum angle, the drive assembly drives the door to perform translational movement independently, enabling control of the translational direction and distance of the door according to user needs, and simplifying control.

Description

Technical Field

[0001] This invention relates to the field of refrigeration devices, and more particularly to a hinge mechanism and a refrigeration device having the hinge mechanism. Background Technology

[0002] With social development and the gradual improvement of living standards, people's demand for the aesthetics of refrigerators is becoming increasingly prominent. Embedding refrigerators into cabinets, creating built-in refrigerators to achieve a unified home decoration style, has become a popular trend.

[0003] When embedding a refrigerator into a cabinet, it's important to avoid the door interfering with the refrigerator or cabinet during rotation. Users also prefer a smaller gap between the refrigerator and the cabinet, which would enhance the overall aesthetics of the home.

[0004] Single-axis hinges are widely used in refrigerators due to their simple structure and low cost. However, when a refrigerator is embedded in a cabinet, the inability of the single-axis hinge to change the axis causes the refrigerator door to move towards the inside of the cabinet after it is opened to 90 degrees. This results in the drawers inside the cabinet being blocked by the door when they are pulled out, thus requiring the design of smaller drawers to avoid the door blocking the drawers from being pulled out after it is opened to 90 degrees.

[0005] In view of this, it is necessary to provide a new hinge mechanism and a cooling device to solve the above problems. Summary of the Invention

[0006] The purpose of this invention is to provide a hinge mechanism and a refrigeration device having the hinge mechanism.

[0007] To achieve the above-mentioned objectives, the present invention adopts the following technical solution: a hinge mechanism, comprising:

[0008] A fixing seat is fixed to the housing, and the fixing seat is provided with one of a hinge shaft and a shaft groove;

[0009] A movable seat is fixed to the door body. The movable seat is provided with one of a hinge shaft and a shaft groove. The shaft groove includes a first shaft groove, which includes a first end and a second end opposite to each other. When the movable seat rotates relative to the fixed seat to the maximum preset angle, the hinge shaft is located at the first end.

[0010] A drive assembly is disposed on the same side as the shaft groove. After the movable seat rotates relative to the fixed seat to the maximum preset angle, the drive assembly drives the hinge shaft to move relative to the first shaft groove toward the second end, thereby causing the movable seat to translate.

[0011] As a further improvement of the present invention, the maximum preset angle is greater than 90°; after the movable seat rotates relative to the fixed seat to the maximum preset angle, the driving component drives the hinge shaft to move relative to the first shaft groove so as to drive the movable seat away from the fixed seat along the length direction of the movable seat.

[0012] As a further improvement of the present invention, the shaft groove is provided on the movable seat, the first shaft groove extends along the length direction of the movable seat, and the first end is located on the side of the second end away from the pivot end of the movable seat.

[0013] As a further improvement of the present invention, the driving assembly includes an electromagnetic driving assembly for driving the hinge shaft to move relative to the first shaft groove; the electromagnetic driving assembly includes an electromagnet fixedly disposed relative to the first shaft groove, a magnetic core movably connected to the electromagnet, and a limiting plate connected to the magnetic core, the limiting plate being connected to the hinge shaft; when the electromagnet is energized, the magnetic core moves into the electromagnet, driving the hinge shaft to move relative to the first shaft groove towards the second end.

[0014] As a further improvement of the present invention, the electromagnet is provided with a guide groove; the electromagnetic drive assembly further includes an elastic element disposed in the guide groove, and the magnetic core is connected to the elastic element; when the electromagnet is in a de-energized state, the elastic element is used to drive the hinge shaft located at the second end to move relative to the first shaft groove toward the first end.

[0015] As a further improved technical solution of the present invention, the shaft groove also includes a second shaft groove connected to the first shaft groove at the first end, and a limiting groove is provided at the position corresponding to the second shaft groove on the limiting plate, and the hinge shaft is located in the limiting groove; when the movable seat is in the closed state, the hinge shaft is located at the first end, and during the process of the movable seat opening from the closed state to the maximum preset angle, the hinge shaft moves relative to the second shaft groove and moves relative to the limiting groove at the same time.

[0016] As a further improvement of the present invention, the shaft groove further includes a second shaft groove connected to the first shaft groove at the first end. The second shaft groove has a third end away from the first end. When the movable seat is in the closed state, the hinge shaft is located at the first end. During the process of the movable seat opening from the closed state to the maximum preset angle, the hinge shaft moves relative to the second shaft groove to drive the movable seat to translate.

[0017] As a further improvement of the present invention, one of the fixed seat and the movable seat is provided with a cam structure, and the other is provided with a guide that matches the contour curve of the cam structure. The contour curve includes a starting end, an ending end, and a first segment located between the starting end and the ending end. When the movable seat is in the closed state, the guide is located at the starting end. During the process of the movable seat rotating open from the closed state, the guide moves along the first segment toward the ending end, driving the hinge shaft to move toward the third end relative to the second shaft groove.

[0018] As a further improvement of the present invention, a relief groove is recessed on the fixed seat or movable seat of the cam structure at a position corresponding to the contour curve of the cam structure, and the shape of the relief groove is the same as the contour curve; the guide extends into the relief groove.

[0019] As a further improvement of the present invention, the driving component further includes an elastic driving component connected to the hinge shaft. During the process of the movable seat opening to the hinge shaft being located at the third end and continuing to open to the maximum preset angle, the elastic driving component drives the hinge shaft to move relative to the second shaft groove toward the first end.

[0020] As a further improved technical solution of the present invention, the elastic drive assembly includes a mounting base fixedly disposed relative to the shaft groove, a slider connected to the hinge shaft, and a spring connecting the mounting base and the slider. The slider has a groove at a position corresponding to the first shaft groove, and the hinge shaft is located in the groove. After the movable seat is opened to the maximum preset angle, the hinge shaft moves relative to the first shaft groove and simultaneously moves relative to the groove.

[0021] As a further improved technical solution of the present invention, the shaft groove is disposed on the movable seat, the second shaft groove extends along the thickness direction of the movable seat, and the first end is located on the side of the third end in the second shaft groove that is opposite to the first end and away from the fixed seat.

[0022] To achieve the above-mentioned objectives, the present invention also provides a refrigeration device, including a housing, a door, and the aforementioned hinge mechanism connecting the housing and the door.

[0023] As a further improvement of the present invention, the shaft groove is provided on the movable seat, and the drive assembly is installed in the door body.

[0024] The beneficial effects of the present invention are as follows: In the hinge mechanism of the present invention, after the movable seat is opened to the maximum preset angle relative to the fixed seat, the movable seat is driven to translate by the drive component. That is, after the door body is rotated to the maximum angle, the drive component drives the door body to translate independently. The translation direction and distance of the door body can be controlled according to the user's needs, and the control is simple. Attached Figure Description

[0025] Figure 1 This is a top view of the cooling device when the door is in the closed state in this invention;

[0026] Figure 2 yes Figure 1 A schematic diagram showing the engagement state between the electromagnetic drive component, the elastic drive component, and the hinge shaft.

[0027] Figure 3 for Figure 1 An exploded view of the electromagnetic drive component in the diagram;

[0028] Figure 4 This is a top view of the cooling device in this invention when the door opens from the closed state to the first preset angle;

[0029] Figure 5 yes Figure 4 A schematic diagram showing the engagement state between the electromagnetic drive component, the elastic drive component, and the hinge shaft.

[0030] Figure 6 This is a top view of the cooling device in this invention when the door is opened to the second preset angle;

[0031] Figure 7 yes Figure 6 A schematic diagram showing the engagement state between the electromagnetic drive component, the elastic drive component, and the hinge shaft.

[0032] Figure 8 This is a top view of the cooling device after the door is opened to the maximum preset angle in this invention;

[0033] Figure 9 yes Figure 8 A schematic diagram showing the engagement state between the electromagnetic drive component, the elastic drive component, and the hinge shaft.

[0034] Figure 10 This is a top view of the refrigeration device after the door is opened to the maximum preset angle and then translated.

[0035] Figure 11 yes Figure 10 A schematic diagram showing the interaction between the electromagnetic drive component, the elastic drive component, and the hinge shaft. Detailed Implementation

[0036] The present invention will now be described in detail with reference to the embodiments shown in the accompanying drawings. Please refer to the accompanying drawings for further details. Figures 1-11 The illustrations shown represent preferred embodiments of the present invention, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. However, it should be noted that these embodiments are not intended to limit the present invention, and any equivalent modifications or substitutions in function, method, or structure made by those skilled in the art based on these embodiments are within the scope of protection of the present invention.

[0037] In this invention, terms describing position and direction are defined as referring to the side where the door is located when the refrigeration device is in normal use. The terms "first," "second," etc., used in this invention are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Furthermore, it should be noted that, unless otherwise explicitly stated and limited, the term "connection" should be interpreted broadly; for example, a connection can be a direct connection or an indirect connection through an intermediate medium, a fixed connection, a movable connection, a detachable connection, or an integral connection. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0038] Please refer to Figure 1 As shown, the present invention provides a hinge mechanism and a refrigeration device 100 having the hinge mechanism. The refrigeration device 100 includes a housing 1, a door 2, and the hinge mechanism that rotatably connects the door 2 to the housing 1.

[0039] Of course, it is understood that the hinge mechanism in this invention is not limited to the refrigeration device 100, but can also be applied to the cabinet 6, etc.

[0040] The door 2 includes a front wall 21, a hinge mounting side 22, and a pivot end 23. In this invention, the refrigeration device 100 is described as an embedded refrigeration device. The front wall 21 of the door 2 is the side of the refrigeration device 100 facing the external environment when embedded in the cabinet 6. The hinge mounting side 22 of the door 2 is the upper side of the door 2, meaning one end of the hinge mechanism is mounted on this hinge mounting side 22, and the other end of the hinge mechanism is mounted on the cabinet 1. The pivot end 23 of the door 2 is the end of the door 2 that rotates around the cabinet 1. Only the cabinet 6 located on the side of the pivot end 23 is shown. In actual installation, the refrigeration device 100 is completely embedded in the cabinet 6. It is understood that the refrigeration device 100 is not necessarily embedded in the cabinet 6; it can also be embedded in the wall.

[0041] The hinge mechanism includes a fixed seat 3 fixed to the housing 1, a movable seat fixed to the door 2, and a drive assembly for driving the movable seat to translate. It is understood that during the opening and closing of the door 2, the door 2 and the movable seat move synchronously. Therefore, the movement trajectory of the door 2 is the same as the movement trajectory of the movable seat. For simplicity and clarity, the movement trajectory of the door 2 will be used as an example for detailed explanation below.

[0042] One of the fixed seat 3 and the movable seat is provided with a hinge shaft 31, and the other is provided with a shaft groove 24 that cooperates with the hinge shaft 31. The drive component is on the same side as the shaft groove 24 and acts on the hinge shaft 31 to move the hinge shaft 31 relative to the shaft groove 24, thereby driving the door body 2 to translate and move the door body 2 along a preset trajectory. This makes the refrigeration device 100 applicable to multiple scenarios, such as embedded scenarios, thus enhancing the versatility of the refrigeration device 100.

[0043] The following description uses the example of the hinge shaft 31 being located on the fixed seat 3 and the shaft groove 24 being located on the movable seat as an example. It can be understood that during the opening and closing of the door 2, the position of the hinge shaft 31 remains unchanged, while the shaft groove 24 moves with the door 2. Thus, the shaft groove 24 moves relative to the hinge shaft 31, allowing the hinge shaft 31 to move within the shaft groove 24, thereby causing the door 2 to translate. Of course, this is not a limitation; in other embodiments, the hinge shaft 31 can also be located on the movable seat, in which case the shaft groove 24 is located on the fixed seat 3.

[0044] In this embodiment, the movable seat only has the shaft groove 24, and the drive assembly is directly installed inside the door body 2. That is, the door body 2 has a mounting cavity that communicates with the shaft groove 24, and the drive assembly is installed in the mounting cavity and connected to the hinge shaft 31. Of course, this is not a limitation; in other embodiments, the drive assembly can also be directly fixed to the movable seat.

[0045] Furthermore, combined Figures 8-11 As shown, the shaft groove 24 includes a first shaft groove 241 that mates with the hinge shaft 31. The first shaft groove 241 includes a first end 2411 and a second end 2412 opposite to each other. When the door body 2 rotates to the maximum preset angle, the hinge shaft 31 is located at the first end 2411. After the door body 2 rotates to the maximum preset angle, the drive assembly drives the hinge shaft 31 to move relative to the first shaft groove 241 towards the second end 2412 to drive the door body 2 to translate. That is, after the door body 2 rotates to the maximum angle, the drive assembly drives the door body 2 to perform translational movement independently. The translational direction and distance of the door body 2 can be controlled according to the user's needs, making control simple.

[0046] In one specific embodiment, the maximum preset angle is greater than 90°, and the movement trajectory of the door 2 is set as follows: after the door 2 (movable seat) rotates relative to the cabinet 1 (fixed seat 3) to the maximum preset angle, the drive assembly drives the hinge shaft 31 to move relative to the first shaft groove 241, thereby causing the movable seat to move away from the fixed seat 3 along the length direction of the movable seat, that is, causing the door 2 to move away from the cabinet 1 along the length direction of the door 2. On the one hand, there is no interference between the door 2 and the cabinet 6. On the other hand, it can prevent the door 2 from obstructing the storage compartment or drawers inside the cabinet 1, making it difficult to open, thus facilitating the user to retrieve and place items. Of course, this is not a limitation. In other embodiments, the translation direction and distance of the door 2 after opening to the maximum angle can be controlled according to the user's specific needs.

[0047] Specifically, in the embodiment where the shaft groove 24 is provided on the movable seat, the first shaft groove 241 extends along the length direction of the movable seat, that is, the first shaft groove 241 extends along the horizontal length direction of the door body 2, and the first end 2411 is located on the side of the second end 2412 away from the pivot end 23 of the door body 2. When the door body 2 is opened to the maximum preset angle, the first end 2411 is located in front of the second end 2412, and the hinge shaft 31 is located at the first end 2411; when the drive assembly drives the first shaft groove 241 to move relative to the hinge shaft 31, causing the hinge shaft 31 to move towards the second end 2412, the door body 2 moves away from the box body 1 along its length direction, so as to reduce the obstruction of the storage compartment inside the box body 1 by the door body 2, thereby facilitating the user to take out and put in items.

[0048] In one specific embodiment, the driving component includes an electromagnetic driving component 4 that drives the hinge shaft 31 to move relative to the first shaft groove 241. That is, the relative movement between the hinge shaft 31 and the first shaft groove 241 is achieved through the electromagnetic driving component 4. Of course, this is not a limitation.

[0049] Combination Figure 3As shown, the electromagnetic drive assembly 4 includes an electromagnet 41 fixedly disposed relative to the first shaft groove 241, a magnetic core 42 movably connected to the electromagnet 41, and a limiting plate 43 connected to the magnetic core 42. The limiting plate 43 is connected to the hinge shaft 31. After the door 2 is opened to the maximum preset angle, the limiting plate 43 restricts the hinge shaft 31 from moving relative to the limiting plate 43, that is, the hinge shaft 31 and the limiting plate 43 are relatively stationary. When the electromagnet 41 is energized, the magnetic core 42 attracts the electromagnet 41. Since the hinge shaft 31 cannot move, the door 2, which is fixed to the electromagnet 41, moves relative to the door, causing the hinge shaft 31 to move relative to the first shaft groove 241. This drives the hinge shaft 31 to move relative to the first shaft groove 241 towards the second end 2412, thus driving the door 2 to translate.

[0050] Specifically, in this embodiment, the shaft groove 24 is provided on the door body 2, and the electromagnetic drive assembly 4 is fixed on the door body 2, wherein the electromagnet 41 is fixed on the door body 2, thereby realizing the electromagnet 41 being fixedly arranged relative to the first shaft groove 241.

[0051] Furthermore, the electromagnet 41 has a guide groove 411 that cooperates with the magnetic core 42. The magnetic core 42 is movably connected in the guide groove 411, which can limit the relative movement direction of the magnetic core 42 and the electromagnet 41, enhance the stability of the magnetic drive assembly, and enhance the stability of the translation of the door 2.

[0052] In one specific embodiment, the magnetic drive assembly further includes an elastic element 44 disposed within the guide groove 411, and the magnetic core 42 is connected to the elastic element 44. When the door 2 is opened to the maximum preset angle and the door 2 is translated to the position of the hinge shaft 31 at the second end 2412, the elastic element 44 is in a compressed state. After the user has finished taking or placing items, the electromagnet 41 is de-energized, and under the action of the elastic restoring force of the elastic element 44, the hinge shaft 31 returns to its original position relative to the first shaft groove 241 from the second end 2412 to the first end 2411, allowing the door 2 to close normally. Of course, this is not the only option. In other embodiments, the elastic element 44 may not be provided. The movement trajectory of the hinge shaft 31 may be controlled by controlling the repulsion and attraction between the electromagnet 41 and the magnetic core 42. That is, the electromagnet 41 and the magnetic core 42 may be controlled to repel each other, so as to drive the hinge shaft 31 located at the second end 2412 to move towards the first end 2411.

[0053] The elastic element 44 can be a spring, which has a simple structure and good stability. Of course, it is not limited to this.

[0054] Furthermore, combined Figure 1 , Figure 2 , Figures 4-7 As shown, the shaft groove 24 also includes a second shaft groove 242 connected to the first shaft groove 241 at the first end 2411. When the door body 2 is in the closed state, the hinge shaft 31 is located at the first end 2411. During the process of the door body 2 opening from the closed state to the maximum preset angle, the hinge shaft 31 moves relative to the second shaft groove 242 to drive the door body 2 to translate, which can prevent interference between the door body 2 and the cabinet 6 during the opening and closing process.

[0055] Specifically, in combination Figure 2 , Figure 5 , Figure 7 , Figure 9 As shown, the limiting plate 43 has a limiting groove 431 at a position corresponding to the second shaft groove 242. The position and shape of the limiting groove 431 are the same as those of the second shaft groove 242, and the hinge shaft 31 is located within the limiting groove 431. During the process of the door 2 opening from the closed state to the maximum preset angle, the hinge shaft 31 moves relative to the second shaft groove 242 and simultaneously moves relative to the limiting groove 431. That is, during the process of the door 2 opening from the closed state to the maximum preset angle, the limiting groove 431 makes way for the hinge shaft 31 to avoid interference between the limiting plate 43 and the hinge shaft 31, which would affect the opening and closing of the door 2.

[0056] The direction from the center of the door 2 in the closed state toward the pivot end 23 of the door 2 is defined as the first direction, and the direction opposite to the first direction is defined as the second direction.

[0057] Specifically, when the hinge mechanism is located on the right side of the refrigeration device 100, the first direction is from left to right, and the second direction is from right to left. When the hinge mechanism is located on the left side of the refrigeration device 100, the first direction is from right to left, and the second direction is from left to right.

[0058] The second shaft groove 242 has a third end 2421 opposite to the first end 2411. During the process of the door 2 opening from the closed state to the maximum preset angle, the hinge shaft 31 switches between the first end 2411 and the third end 2421 relative to the second shaft groove 242 to drive the door 2 to move horizontally.

[0059] One of the fixed seat 3 and the movable seat is provided with a cam structure 25, and the other is provided with a guide 32 that cooperates with the contour curve of the cam structure 25. The contour curve includes a starting end, an ending end, and a first segment 251 located between the starting end and the ending end. When the door 2 is in the closed state, the guide 32 is located at the starting end; during the process of the door 2 rotating open from the closed state, the guide 32 moves along the first segment 251 toward the ending end, driving the hinge shaft 31 to move relative to the second shaft groove 242 from the first end 2411 to the third end 2421.

[0060] Combination Figure 4 , Figure 6 As shown, the first segment 251 is configured such that when the door 2 is opened to a first preset angle, the guide 32 moves along the first segment 251 toward the end of the first segment 251 closer to the terminal, causing the hinge shaft 31 to move from the first end 2411 to the third end 2421 until the door 2 is opened to a second preset angle, at which point the hinge shaft 31 moves to the third end 2421. The second preset angle is greater than the first preset angle.

[0061] Specifically, the first segment 251 is arc-shaped, and along the direction from the starting end to the end, the first segment 251 gradually moves away from the second shaft groove 242, so that when the guide 32 moves along the first segment 251 towards the end, it can drive the hinge shaft 31 to move towards the third end 2421.

[0062] In one specific embodiment, the shaft groove 24 is disposed on the movable seat, the second shaft groove 242 extends along the thickness direction of the door body 2, and the first end 2411 is located on the side of the third end 2421 opposite to the first end 2411 in the second shaft groove 242 that is away from the fixed seat 3, that is, the first end 2411 is located in front of the third end 2421. When the opening angle of the door body 2 is between 0° and 90°, the angle between the extension direction of the second shaft groove 242 and the first direction gradually decreases. Therefore, when the opening angle of the door body 2 is between 0° and 90°, when the door body 2 translates to move the hinge shaft 31 from the first end 2411 to the third end 2421, the door body 2 moves towards the first direction while moving away from the housing 1. On the one hand, moving the door 2 away from the cabinet 1 along the first direction allows the door 2 to be as far away from the cabinet 1 as possible in the first direction, ensuring the opening of the door 2 and facilitating the user to retrieve and place items. On the other hand, moving the door 2 away from the cabinet 1 increases the distance between the door 2 and the cabinet 1, preventing interference between the rear wall of the door 2 and the cabinet 1 during the opening process. Simultaneously, for the embedded refrigeration device 100, this allows the front wall 21 of the door 2, located at the pivot end 23, to protrude forward from the front end of the cabinet 6, reducing interference between the door 2 and the cabinet 6 during rotation. Of course, this is not a limitation; it is understood that the extension direction of the second shaft groove 242 can be adjusted according to specific needs to control the translation direction of the door 2.

[0063] Specifically, in one embodiment, the second preset angle is 90°. Of course, it is not limited to this.

[0064] Furthermore, in this invention, during the process of the door 2 opening from the closed state to the maximum preset angle, the movement trajectory of the door 2 is set as follows: when the door 2 opens from the closed state to the first preset angle, the door 2 rotates in place; when the door 2 opens to the first preset angle and continues to rotate open, the guide 32 moves along the first segment 251 toward the end of the first segment 251 closer to the terminal, causing the hinge shaft 31 to move along the second shaft groove 242 from the first end 2411 to the third segment 253, causing the door 2 to move in the first direction while simultaneously moving away from the box body 1; during the process of the door 2 opening to the second preset angle and continuing to open to the maximum preset angle, the hinge shaft 31 moves back from the third end 2421 to the first end 2411, causing the door 2 to move in the second direction, thereby further increasing the opening degree of the door 2, making it easier for the user to take and put in items. Of course, this is not a limitation.

[0065] It is known that when door 2 is in the closed state, the door seal on door 2 is tightly adhered to housing 1. Therefore, when door 2 is opened from the closed state, rotating door 2 in place by a first preset angle allows the door seal to detach from housing 1 first, preventing deformation and damage to the door seal and affecting the subsequent sealing performance of door 2. Correspondingly, in the final stage of closing, rotating door 2 in place to close it also reduces deformation of the door seal, facilitating the smooth closing of door 2.

[0066] Meanwhile, for the refrigeration device 100 with a flip beam, when the door 2 opens from the closed state, it first rotates in place, which allows the flip beam to flip and disengage from the guide structure on the housing 1, so that the door 2 can continue to rotate and open. Correspondingly, in the final stage of closing, during the process of the door 2 rotating in place to close, the flip beam can be flipped under the guidance of the guide structure on the housing 1 to cover the gap between the left and right doors 2.

[0067] In one specific embodiment, the first preset angle is between 30° and 60°. Of course, it is not limited to this.

[0068] Furthermore, the drive assembly also includes an elastic drive assembly 5 connected to the hinge shaft 31. The elastic drive assembly 5 is used to restrict the movement of the hinge shaft 31 along the second shaft groove 242 when the door 2 is opened from the closed state to the first preset angle, that is, to keep the hinge shaft 31 at the first end 2411, thereby allowing the door 2 to rotate in place. Simultaneously, when the door 2 continues to rotate from the second preset angle, the elastic drive assembly 5 drives the hinge shaft 31 to move from the third end 2421 towards the first end 2411, so that the door 2 rotates while simultaneously translating in the second direction. Additionally, after the door 2 is opened to the maximum preset angle, the elastic drive assembly 5 restricts the movement of the hinge shaft 31 along the second shaft groove 242, thereby allowing the hinge shaft 31 to move along the first shaft groove 241 towards the second end 2412 under the action of the electromagnetic drive assembly 4.

[0069] In one specific embodiment, the elastic drive assembly 5 includes a mounting base 51 fixedly disposed relative to the shaft groove 24, a slider 52 connected to the hinge shaft 31, and a spring 53 connecting the mounting base 51 and the slider 52. During the process of the door 2 rotating from the closed state to the first preset angle, the spring 53 keeps the hinge shaft 31 held at the first end 2411. During the process of the door 2 rotating open from the first preset angle to the second preset angle, the hinge shaft 31 moves towards the third end 2421, and the spring 53 is in a compressed state. During the process of the door 2 continuing to open from the second preset angle to the maximum preset angle, under the action of the elastic restoring force of the spring 53, the hinge shaft 31 is driven to move and reset from the third end 2421 towards the first end 2411. Of course, this is not a limitation.

[0070] Specifically, when the shaft groove 24 is provided on the door body 2, the mounting seat 51 in the elastic drive assembly 5 is fixed on the door body 2, so that the mounting seat 51 and the shaft groove 24 are fixedly disposed relative to each other. This allows the elastic drive assembly 5 to act on the hinge shaft 31, ensuring that the limiting effect of the elastic drive assembly 5 on the hinge shaft 31 is not affected by the opening and closing of the door body 2.

[0071] Furthermore, combined Figure 9 , Figure 11 As shown, the slider 52 has a groove 521 at a position corresponding to the first shaft groove 241, and the hinge shaft 31 is located within the groove 521. The position and size of the groove 521 correspond to the first shaft groove 241. After the movable seat is opened to the maximum preset angle, the hinge shaft 31 moves relative to the first shaft groove 241 and simultaneously moves relative to the groove 521. Thus, during the translation process after the door 2 is opened to the maximum preset angle, the groove 521 provides space for the hinge shaft 31 to avoid interference between the slider 52 and the hinge shaft 31, which would affect the translation of the door 2.

[0072] Furthermore, combined Figure 1 , Figure 4 As shown, the contour curve also has a second segment 252 connecting the starting end and the first segment 251, and the second segment 252 is an arc centered on the first end 2411. During the process of the door 2 opening from the closed state to the first preset angle, the guide 32 moves along the second segment 252 with the hinge axis 31 as the center. At this time, under the cooperative action of the elastic drive component 5, the hinge axis 31 is held at the first end 2411, thereby enabling the door 2 to rotate in place by the preset angle.

[0073] It is understood that the length of the second segment 252 can be determined according to the angle at which the door 2 needs to rotate in place. At the same time, by setting the second segment 252 to cooperate with the guide 32, the hinge shaft 31 can be further limited, so that during the process of the door 2 opening to the first preset angle, the hinge shaft 31 is held at the first end 2411.

[0074] Furthermore, combined Figure 6 , Figure 8 As shown, the contour curve also has a third segment 253 connecting the first segment 251 and the terminal. Along the direction from the starting end to the terminal, the third segment 253 gradually approaches the second shaft groove 242. When the door 2 opens to the second preset angle and continues to open, the guide 32 abuts against the third segment 253 and moves toward the terminal. Under the synergistic action of the elastic drive component 5, it drives the hinge shaft 31 to move from the third end 2421 toward the first end 2411, and the door 2 moves toward a second direction opposite to the first direction.

[0075] It is understood that by setting the third segment 253, when the elastic drive assembly 5 drives the hinge shaft 31 to move relative to the second shaft groove 242 towards the first end 2411, the hinge shaft 31 can move slowly towards the first end 2411, thereby enhancing the smoothness of the door body 2's translation, reducing noise, and preventing the hinge shaft 31 from colliding with the hole wall of the second shaft groove 242 and causing damage.

[0076] Furthermore, a recessed groove 26 is provided on the door body 2 at a position corresponding to the contour curve of the cam structure 25, and the shape of the recessed groove 26 is the same as the contour curve. The guide 32 extends into the recessed groove 26. On the one hand, when installing the door body 2, it is necessary to adjust the height of the door body 2. If the height of the door body 2 is adjusted too much, it is easy for the guide 32 to disengage from the cam structure 25. Therefore, it can be ensured that the guide 32 always cooperates with the cam structure 25, ensuring the reliability of the cooperation structure between the guide 32 and the cam structure 25 when the door body 2 is adjusted up and down. On the other hand, the cooperation between the guide 32 and the recessed groove 26 can also keep the guide 32 always on the contour curve of the cam structure 25, enhancing the stability of the translation of the door body 2.

[0077] It is understood that in the embodiment having the clearance groove 26 and the guide 32, the clearance groove 26 has a relief section 261. When the door body 2 rotates to the maximum preset angle and then moves, the guide 32 moves within the relief section 261 so that the door body 2 can move.

[0078] In summary, the hinge mechanism of this invention, after the movable seat opens to the maximum preset angle relative to the fixed seat 3, drives the movable seat to translate through the drive component. That is, after the door body 2 rotates to the maximum angle, the drive component drives the door body 2 to perform translational movement independently. It can control the translational direction and distance of the door body 2 according to the user's needs, and the control is simple.

[0079] It should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This way of describing the specification is only for clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0080] The detailed descriptions listed above are merely specific descriptions of feasible embodiments of the present invention, and are not intended to limit the scope of protection of the present invention. All equivalent embodiments or modifications made without departing from the spirit of the present invention should be included within the scope of protection of the present invention.

Claims

1. A hinge mechanism, characterized by: The utility model relates to a hinge mechanism of a door body, comprising: a fixed seat fixed on a box body, one of a hinge shaft and a shaft groove being arranged on the fixed seat; a movable seat fixed on a door body, the other of the hinge shaft and the shaft groove being arranged on the movable seat, the shaft groove comprising a first shaft groove, the first shaft groove comprising opposite first and second ends, the hinge shaft being located at the first end when the movable seat is rotated to a maximum preset angle relative to the fixed seat; a driving assembly arranged on the same side of the shaft groove, the driving assembly driving the hinge shaft to move relative to the first shaft groove towards the second end to drive the movable seat to translate after the movable seat is rotated to the maximum preset angle relative to the fixed seat; the hinge mechanism further comprising at least one of the following two features: the driving assembly comprising an electromagnetic driving assembly for driving the hinge shaft to move relative to the first shaft groove, the electromagnetic driving assembly comprising an electromagnet fixed relative to the first shaft groove, a magnetic core movably connected to the electromagnet, and a limiting plate connected to the magnetic core, the limiting plate being connected to the hinge shaft, the magnetic core moving towards the electromagnet to drive the hinge shaft to move relative to the first shaft groove towards the second end when the electromagnet is in an energized state; the shaft groove further comprising a second shaft groove in communication with the first shaft groove at the first end, the second shaft groove having a third end away from the first end, the hinge shaft being located at the first end when the movable seat is in a closed state, the hinge shaft moving relative to the second shaft groove to drive the movable seat to translate during the process of the movable seat being opened from the closed state to the maximum preset angle.

2. The hinge mechanism of claim 1, wherein: the maximum preset angle being greater than 90°, the driving assembly driving the hinge shaft to move relative to the first shaft groove to drive the movable seat to move away from the fixed seat along the length direction of the movable seat after the movable seat is rotated to the maximum preset angle relative to the fixed seat.

3. The hinge mechanism of claim 2, wherein: the shaft groove being arranged on the movable seat, the first shaft groove extending along the length direction of the movable seat, the first end being located on the side of the second end away from the pivoting end of the movable seat.

4. The hinge mechanism of claim 1, wherein: the electromagnet being provided with a guide groove, the electromagnetic driving assembly further comprising an elastic member arranged in the guide groove, the magnetic core being connected to the elastic member, the elastic member being used to drive the hinge shaft located at the second end to move relative to the first shaft groove towards the first end when the electromagnet is in a de-energized state.

5. The hinge mechanism of claim 1, wherein: the shaft groove further comprising a second shaft groove in communication with the first shaft groove at the first end, the limiting plate being provided with a limiting groove at a position corresponding to the second shaft groove, the hinge shaft being located in the limiting groove, the hinge shaft moving relative to the second shaft groove and the limiting groove during the process of the movable seat being opened from the closed state to the maximum preset angle.

6. The hinge mechanism of claim 1, wherein: One of the fixed seat and the movable seat is provided with a cam structure, and the other is provided with a guide matched with a profile curve of the cam structure, the profile curve comprising a starting end, a terminal end, and a first section between the starting end and the terminal end, the guide being located at the starting end when the movable seat is in a closed state, and the guide moving along the first section to the terminal end to drive the hinge shaft to move relative to the second shaft slot to the third end during a process that the movable seat rotates from the closed state to an open state.

7. The hinge mechanism of claim 6, wherein: A position corresponding to the profile curve of the cam structure on the fixed seat or the movable seat provided with the cam structure is concavely provided with a clearance slot, the clearance slot having the same shape as the profile curve, and the guide extending into the clearance slot.

8. The hinge mechanism of claim 1, wherein: The driving assembly further comprises an elastic driving assembly connected with the hinge shaft, and the elastic driving assembly drives the hinge shaft to move relative to the second shaft slot to the first end during a process that the movable seat is opened to the third end of the hinge shaft and continues to be opened to a maximum preset angle.

9. The hinge mechanism of claim 8, wherein: The elastic driving assembly comprises a mounting seat fixed opposite to the shaft slot, a sliding block connected with the hinge shaft, and a spring connecting the mounting seat and the sliding block, the sliding block having a sliding groove at a position corresponding to the first shaft slot, and the hinge shaft being located in the sliding groove, and the hinge shaft moving relative to the first shaft slot and the sliding groove after the movable seat is opened to the maximum preset angle.

10. The hinge mechanism of claim 1 or 5, wherein: The shaft slot is arranged on the movable seat, the second shaft slot extends along a thickness direction of the movable seat, and the first end is located at a third end opposite to the first end and away from the fixed seat.

11. A refrigeration appliance comprising a cabinet, a door, characterized in that: The refrigeration device further comprises a hinge mechanism connected between the cabinet and the door body, and the hinge mechanism is the hinge mechanism of any one of claims 1-10.

12. The refrigeration appliance of claim 11, wherein: The shaft slot is arranged on the movable seat, and the driving assembly is mounted in the door body.

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