Refrigeration equipment

Abstract

The refrigeration equipment comprises a box body, a door body and a hinge assembly, a positioning mechanism of the hinge assembly comprises a hinge shaft, a first positioning part and a second positioning part, the hinge shaft is inserted into a first hinge groove and a second hinge groove at the same time, and the hinge shaft extends in the insertion direction; the insertion direction is perpendicular to the plane where the first hinge groove or the second hinge groove is located; the first positioning part is used for limiting relative fixation of the first hinge groove and the hinge shaft in the insertion direction in the process that the hinge shaft slides along the second hinge groove, and the second positioning part is used for limiting relative fixation of the second hinge groove and the hinge shaft in the insertion direction in the process that the hinge shaft slides along the first hinge groove. According to the hinge assembly, it is ensured that only one hinge shaft moves relative to the hinge groove in each stage, ordered movement of the double-shaft hinge is achieved, the working reliability of the hinge is improved, the service life of the hinge is prolonged, mechanical faults caused by disordered movement are avoided, force needed for opening a door is reduced, and the structure of the hinge is optimized.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of refrigeration technology, in particular to a refrigeration device. BACKGROUND

[0002] The embedded design of refrigeration devices (such as refrigerators) often encounters the problem of avoiding the adjacent cabinet or drawer when the door is opened. The existing single-axis hinge is difficult to achieve this function, so the design of double-axis hinge gradually appears in the market. However, the shaft of the existing double-axis hinge is paired with two grooves and moves in the grooves, and the movement sequence is difficult to control, or in other words, the two shafts move relatively randomly in the two grooves, which may not make the door body move along the expected path, and even easily collide and jam, resulting in instability or even jamming of the door body during opening and closing. The disordered movement of such double-axis hinge not only affects the user experience, but also may cause mechanical failure of the hinge and the door body, reducing the reliability and service life of the device. In addition, the existing double-axis hinge also has the problems of requiring larger opening force and occupying larger volume compared with the single-axis hinge. Therefore, how to realize the orderly movement of the double-axis hinge in the embedded design, avoid movement conflict, and optimize the structure of the hinge, has become a technical problem to be solved. SUMMARY

[0003] To solve the problem of difficult control of movement sequence of the double-axis hinge in the prior art, the purpose of the present application is to provide a refrigeration device realizing orderly movement of double-axis hinge.

[0004] To achieve the above-mentioned purpose of the application, an embodiment of the present application provides a refrigeration device, comprising a cabinet, a door body and a hinge assembly, the hinge assembly comprising a cabinet connecting piece and a positioning mechanism, the cabinet connecting piece being fixedly connected to the cabinet, a first hinge groove being provided on the door body, a second hinge groove being provided on the cabinet connecting piece, the positioning mechanism comprising a hinge shaft, a first positioning part and a second positioning part, the hinge shaft being inserted into the first hinge groove and the second hinge groove at the same time.

[0005] The first positioning part is used to limit the movement of the hinge shaft in the first hinge groove during the sliding of the hinge shaft along the second hinge groove, and the second positioning part is used to limit the movement of the hinge shaft in the second hinge groove during the sliding of the hinge shaft along the first hinge groove.

[0006] As a further improvement of the present application, during the opening of the door body, when the hinge shaft slides along the second hinge groove to the end of the stroke of the second hinge groove, the first positioning part stops limiting the relative fixation of the first hinge groove and the hinge shaft.

[0007] When the hinge shaft slides along the first hinge slot to the end of the first hinge slot during the closing of the door body, the second positioning part stops limiting the relative fixation of the second hinge slot and the hinge shaft.

[0008] As a further improvement of the present application, the door body comprises a door body trim, and the first hinge slot is arranged on the door body trim.

[0009] As a further improvement of the present application, the first positioning part comprises a first positioning protrusion, and a first positioning slot is arranged on the door body trim, and the first positioning protrusion is inserted into the first positioning slot when the first positioning part limits the relative fixation of the first hinge slot and the hinge shaft.

[0010] The second positioning part comprises a second positioning protrusion, and a second positioning slot is arranged on the cabinet connecting piece, and the second positioning protrusion is inserted into the second positioning slot when the second positioning part limits the relative fixation of the second hinge slot and the hinge shaft.

[0011] As a further improvement of the present application, a first sliding surface is arranged on the door body trim, and a second sliding surface is arranged on the cabinet connecting piece.

[0012] During the sliding of the hinge shaft along the first hinge slot, the first positioning protrusion slides on the first sliding surface.

[0013] During the sliding of the hinge shaft along the second hinge slot, the second positioning protrusion slides on the second sliding surface.

[0014] As a further improvement of the present application, the first positioning part further comprises a first positioning block, the first positioning protrusion is fixedly connected to the first positioning block, the second positioning part further comprises a second positioning block, the second positioning protrusion is fixedly connected to the second positioning block, the positioning mechanism further comprises a connecting rod, the first positioning block and the second positioning block are respectively located at each end of the connecting rod, the hinge shaft comprises a through hole penetrating along the extending direction of the hinge shaft, and the connecting rod is inserted into the through hole.

[0015] The connecting rod and the through hole comprise a first constraint plane which prevents the relative rotation of the connecting rod and the hinge shaft, and the hinge shaft and the first hinge slot, and the second hinge slot comprise a second constraint plane which prevents the relative rotation of the hinge shaft and the first hinge slot or the second hinge slot.

[0016] As a further improvement of the present application, the distance between the first positioning block and the second positioning block satisfies that the first positioning protrusion and the second positioning protrusion are inserted into the first positioning slot or the second positioning slot at all times, and when the first positioning protrusion is inserted into the first positioning slot, the second positioning protrusion is separated from the second positioning slot, and when the second positioning protrusion is inserted into the second positioning slot, the first positioning protrusion is separated from the first positioning slot.

[0017] In the process of opening the door body, when the hinge shaft slides to the end of the stroke of the second hinge slot, the first positioning protrusion is aligned with the first positioning slot, and the second positioning protrusion is aligned with the second positioning slot.

[0018] In the process of closing the door body, when the hinge shaft slides to the end of the stroke of the first hinge slot, the first positioning protrusion is aligned with the first positioning slot, and the second positioning protrusion is aligned with the second positioning slot.

[0019] As a further improvement of the present application, the positioning mechanism further comprises an elastic member for driving the first positioning protrusion to move towards the first positioning slot, or for driving the second positioning protrusion to move towards the second positioning slot.

[0020] As a further improvement of the present application, the end of the first positioning protrusion and the end of the second positioning protrusion are both provided with a rounded corner.

[0021] The first positioning block is provided with the first positioning protrusion on both sides, and the first positioning slot is provided with two corresponding first positioning protrusions.

[0022] The second positioning block is provided with the second positioning protrusion on both sides, and the second positioning slot is provided with two corresponding second positioning protrusions.

[0023] As a further improvement of the present application, during at least part of the process of opening the door body, the second hinge slot restricts the movement of the hinge shaft to the first side, wherein the first side is the side of the hinge assembly relative to which the end of the door body away from the hinge assembly when the door body is closed.

[0024] As a further improvement of the present application, the first hinge slot and the second hinge slot are both provided as arc-shaped slots, and the corresponding angle of the arc-shaped trajectory of the movement of the hinge shaft in the first hinge slot and the second hinge slot is not less than 90°.

[0025] Compared with the prior art, the hinge assembly has the following beneficial effects: the first positioning part and the second positioning part are arranged to limit the sliding of the hinge shaft in the first hinge groove and the second hinge groove respectively, so that the hinge shaft moves in one hinge groove first and then moves in the other hinge groove, ensuring that only one hinge shaft moves relative to the hinge groove in each stage, and realizing the following effects:

[0026] (1) The orderly movement of the hinge shaft in different hinge grooves avoids the conflict and the difficult-to-control door opening trajectory caused by the disordered movement of the traditional double-shaft hinge in two hinge grooves, ensures that the door body can smoothly avoid the cabinet beside it during door opening, improves the convenience of door opening, improves the working reliability and service life of the hinge, and avoids mechanical failure caused by disordered movement.

[0027] (2) In the traditional double-shaft hinge, the two shafts do not move in the same direction, so that a force conflict occurs between the shafts and the movement of the shafts, and a large force is required to open the door, while in the hinge assembly, the hinge shaft moves in only one hinge groove at a time, so that the force conflict does not occur, and a smaller force can be used to open the door.

[0028] (3) In the traditional double-shaft hinge, two shafts are arranged to move in two grooves on the hinge, so that the size of the hinge is large, while in the hinge assembly, the first hinge groove is arranged on the door body, and the second hinge groove is arranged on the cabinet connecting piece, so that the hinge grooves are arranged on two components, and the size of the hinge assembly is relatively smaller. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 is a structural schematic view of a refrigeration equipment according to an embodiment of the present application;

[0030] Figure 2 is a partial enlarged view of A in Figure 1

[0031] Figure 3 is an exploded view of a hinge assembly and a door body trim according to an embodiment of the present application;

[0032] Figure 4 is a structural schematic view of a hinge assembly according to an embodiment of the present application;

[0033] Figure 5 is a side view of a hinge assembly according to an embodiment of the present application;

[0034] Figure 6 is a sectional view of a hinge assembly according to an embodiment of the present application;

[0035] Figure 7 is an exploded view of a hinge assembly according to an embodiment of the present application;

[0036] Figure 8 ​is a top view of the door body when the door body is closed, which is an embodiment of the present application;

[0037] Figure 9 is a bottom view of the door body when the door body is closed, which is an embodiment of the present application;

[0038] Figure 10 is a top view of the door body when the hinge shaft slides to the end of the stroke of the second hinge slot, which is an embodiment of the present application;

[0039] Figure 11 is a bottom view of the door body when the hinge shaft slides to the end of the stroke of the second hinge slot, which is an embodiment of the present application;

[0040] Figure 12 is a top view of the door body when the hinge shaft slides to the end of the stroke of the first hinge slot, which is an embodiment of the present application;

[0041] Figure 13 is a bottom view of the door body when the hinge shaft slides to the end of the stroke of the first hinge slot, which is an embodiment of the present application;

[0042] In the drawings: 100, refrigeration equipment; 10, hinge assembly; 11, box connecting piece; 111, second hinge slot; 112, second positioning slot; 113, second sliding surface; 12, positioning mechanism; 121, first positioning part; 1211, first positioning protrusion; 1212, first positioning block; 1213, connecting rod; 1214, first constraint plane; 122, hinge shaft; 1221, through hole; 1222, second constraint plane; 123, second positioning part; 1231, second positioning protrusion; 1232, second positioning block; 124, elastic member; 125, clamp spring; 20, box; 30, door body trim; 31, first hinge slot; 32, first positioning slot; 33, first sliding surface; 40, cabinet body; T1, insertion direction. DETAILED DESCRIPTION

[0043] The present application will be described in detail below with reference to specific embodiments shown in the drawings. However, these embodiments do not limit the present application, and any changes in structure, method, or function made by those of ordinary skill in the art based on these embodiments are included in the protection scope of the present application.

[0044] It should be understood that the terms such as "upper", "above", "lower", "below", and the like used herein to indicate spatial relative positions are for the purpose of facilitating description to describe the relationship of one unit or feature relative to another unit or feature as shown in the drawings. The spatial relative position terms can be intended to include different orientations of the device in use or in operation other than the orientation shown in the drawings.

[0045] An embodiment of the present application provides a refrigeration equipment realizing ordered movement of a double-shaft hinge.

[0046] The refrigeration device 100 of the embodiment can be a refrigerator, a freezer, a vertical refrigeration cabinet, a wine cabinet, etc. The refrigeration device 100 of the following embodiments is taken as an example of a refrigerator for illustration. Figure 1 And 2 As shown in the drawings, the refrigerator comprises a cabinet 20 and a door body, the door body and the cabinet 20 enclose a refrigeration space, the refrigeration space comprises a refrigeration compartment, a freezing compartment, a variable-temperature compartment, etc., and the refrigerator further comprises a hinge assembly 10, the door body is rotatably connected to the cabinet 20 through the hinge assembly 10.

[0047] The refrigerator can be more specifically an embedded refrigerator, there is a cabinet 40 outside the refrigerator, that is, the refrigerator is embedded in the cabinet 40, generally, the outer surface of the refrigerator is flush with the outer surface of the cabinet 40 next to it, and the appearance is beautiful. During the opening process of the refrigerator, it is necessary to avoid collision with the cabinet 40 as much as possible. Once the collision occurs, interference, noise or even the door body cannot be opened, which will greatly affect the use experience of the embedded refrigerator. The hinge assembly 10 of the embodiment can better avoid collision between the door body and the cabinet 40 on the side when the door body is opened, and meets the use requirements of the embedded refrigerator.

[0048] The hinge assembly 10 comprises a cabinet connecting piece 11 and a positioning mechanism 12, the cabinet connecting piece 11 is fixedly connected to the cabinet 20, a first hinge slot 31 is arranged on the door body, and a second hinge slot 111 is arranged on the cabinet connecting piece 11. The positioning mechanism 12 comprises a hinge shaft 122, a first positioning part 121 and a second positioning part 123, and the hinge shaft 122 is inserted into the first hinge slot 31 and the second hinge slot 111 at the same time.

[0049] In order to clearly express the positions and directions described in the embodiment, in the embodiment, the reference gravity direction is defined as downward, and the opposite direction is upward. The refrigerator is placed on a horizontal ground, the door body is located in front of the cabinet 20 when the door body is closed, the opposite direction is rear, and the two sides of the plane where up, down, front and back are located are left and right respectively. The hinge assembly 10 in the embodiment Figure 1 、 Figure 2 、 Figures 8 to 13 The hinge assembly 10 in the embodiment is a lower hinge of the upper right door body, the hinge assembly 10 in the drawing is arranged on the right side of the door body, and the corresponding door body is opened to the right front when opened. The hinge shaft 122 can extend in the up-down direction, the first hinge slot 31 or the second hinge slot 111 is a groove extending in the horizontal plane, and the hinge shaft 122 is perpendicular to the first hinge slot 31 or the second hinge slot 111 in the horizontal plane.

[0050] The first positioning part 121 is used to limit the movement of the hinge shaft 122 in the first hinge slot 31 during the sliding of the hinge shaft 122 along the second hinge slot 111, and the second positioning part 123 is used to limit the movement of the hinge shaft 122 in the second hinge slot 111 during the sliding of the hinge shaft 122 along the first hinge slot 31.

[0051] The limiting method by which the first positioning part 121 restricts the hinge shaft 122 from moving within the first hinge groove 31 and the second positioning part 123 restricts the hinge shaft 122 from moving within the second hinge groove 111 can be limited by a mechanical structure or by an electronic control. In this embodiment, the following description mainly uses a mechanical structure. The electronic control method can be to lock the switch by triggering an electrical signal at a designated position and then open the switch by triggering an electrical signal at another designated position.

[0052] By limiting the first positioning part 121 and the second positioning part 123, the relative movement of the hinge shaft 122 with the first hinge groove 31 and the second hinge groove 111 when the door is opened can be divided into two stages. That is, in the first stage, the hinge shaft 122 only moves relative to the second hinge groove 111, while remaining relatively stationary with the first hinge groove 31. The top view of the first stage is as follows. Figure 8 Exercise Figure 10 The switching process, the bottom view is from Figure 9 Exercise Figure 11 The switching process; in the second stage, the hinge shaft 122 only moves relative to the first hinge slot 31, while remaining relatively stationary with respect to the second hinge slot 111. The top view of the first stage is as follows. Figure 10 Exercise Figure 12 The switching process, the bottom view is from Figure 11 Exercise Figure 13 The switching process. The order of the first and second stages can be designed according to different needs.

[0053] Furthermore, the relative movement between the hinge shaft 122 and the second hinge slot 111 can be either the hinge shaft 122 actually moving or the second hinge slot 111 actually moving; the relative movement between the hinge shaft 122 and the first hinge slot 31 can also be either the hinge shaft 122 actually moving or the first hinge slot 31 actually moving. In this embodiment, the relative movement between the hinge shaft 122 and the second hinge slot 111 means that the hinge shaft 122 moves on the horizontal plane while the second hinge slot 111 remains stationary; the relative movement between the hinge shaft 122 and the first hinge slot 31 means that the first hinge slot 31 moves on the horizontal plane while the hinge shaft 122 remains stationary.

[0054] In addition, in traditional dual-axis hinges, the two axes do not move in the same direction, so there is a conflict of forces between the movements of the axes, requiring a larger force to open the door. More specifically, because the two axes move in different directions, there will inevitably be some components of the force in the opposite direction or in the opposite direction. These opposing forces cause the force to dissipate internally, so the force used by the user to open the door cannot be fully converted into the force required to open the door, thus requiring even more force to open the door.

[0055] Since the hinge axis 122 of the hinge assembly 10 moves only in one hinge slot at a time, it does not generate force conflict and avoids force dissipation. Therefore, it can open the door with a smaller force while the door body avoids the side cabinet 40.

[0056] Furthermore, traditional dual-axis hinges have a larger hinge size because two axes are set on the hinge to move in two slots at the same time. For example, two hinge slots of different shapes occupy a certain space, making the overall width of the hinge larger. This is not suitable for some refrigerators with thinner doors, or requires a thicker door to accommodate the hinge, causing a lot of inconvenience.

[0057] In this hinge assembly 10, the first hinge groove 31 is on the door body, and the second hinge groove 111 is on the connector 11 of the housing 20. The hinge grooves on the two components respectively make the volume of the hinge assembly 10 relatively smaller. The size of the second hinge groove 111 does not occupy the space on the door body. The width of the door body is only related to the width of the first hinge groove 31. That is to say, it changes from needing to accommodate the width of two hinge grooves to only needing to accommodate the width of one hinge groove. Therefore, the width can naturally be made smaller, that is, the overall volume of the hinge assembly 10 is smaller, which meets the needs of using thinner door bodies.

[0058] By setting up the first positioning part 121 and the second positioning part 123, and the cooperation between the hinge shaft 122 and the first hinge groove 31 and the second hinge groove 111, the problem of difficulty in controlling the movement sequence in the first hinge groove 31 and the second hinge groove 111 is solved. The first positioning part 121 and the second positioning part 123 control the hinge shaft 122 to move in only one hinge groove at each stage, thereby avoiding the conflict and disorder caused by simultaneous movement in two hinge grooves.

[0059] Especially for built-in refrigerators, this feature avoids disordered door movement and allows the door to open along a predetermined path. This ensures that the door can smoothly avoid adjacent cabinets or other objects during the opening process, improving the convenience of opening the door and enhancing the reliability and lifespan of the hinges, thus preventing mechanical failures caused by disordered movement.

[0060] In this embodiment, the first stage described above is run first, followed by the second stage to open the door. Specifically, the hinge shaft 122 first slides within the second hinge groove 111, then the hinge shaft 122 is relatively fixed, while the first hinge groove 31 slides relative to the hinge shaft 122. Correspondingly, in the closing stage, the second stage is run first, followed by the first stage.

[0061] During the opening of the door, when the hinge shaft 122 slides along the second hinge groove 111 to the end of its stroke, the first positioning part 121 stops restricting the relative fixation between the first hinge groove 31 and the hinge shaft 122, and at this time, the second positioning part 123 begins to function. During the closing of the door, when the hinge shaft 122 slides along the first hinge groove 31 to the end of its stroke, the second positioning part 123 stops restricting the relative fixation between the second hinge groove 111 and the hinge shaft 122, and at this time, the first positioning part 121 resumes its function. This design ensures the automatic switching of the positioning components during the opening of the door, guarantees the orderly movement, realizes the smooth opening and closing of the door, improves the smoothness and reliability of the door opening and closing, and avoids mechanical interference caused by disordered movement.

[0062] The door body includes a door body trim 30, on which a first hinge groove 31 is provided. That is, the hinge assembly 10 in this embodiment is described using the example of it being fixed to the door body trim 30, as follows... Figures 1 to 3 As shown. Guided by the first hinge groove 31 on the door trim 30, the hinge shaft 122 can move smoothly within a predetermined trajectory, improving the stability and accuracy of the door opening and closing.

[0063] like Figures 5 to 7 As shown, the first positioning part 121 includes a first positioning protrusion 1211, and a first positioning groove 32 is provided on the door trim 30. When the first positioning part 121 restricts the first hinge groove 31 and the hinge shaft 122 to be relatively fixed, the first positioning protrusion 1211 is inserted into the first positioning groove 32. The second positioning part 123 includes a second positioning protrusion 1231, and a second positioning groove 112 is provided on the box connector 11. When the second positioning part 123 restricts the second hinge groove 111 and the hinge shaft 122 to be relatively fixed, the second positioning protrusion 1231 is inserted into the second positioning groove 112. The restriction of the first positioning part 121 and the second positioning part 123 is achieved by fixing the protrusions into the grooves. This design, through precise mechanical cooperation, ensures the stability and reliability of the positioning components at different stages, realizes accurate positioning of the hinge shaft 122, avoids misalignment and conflict during movement, and improves the working performance of the entire hinge assembly 10.

[0064] In addition, such as Figures 8 to 13 As shown, a first sliding surface 33 is provided on the door trim 30, and a second sliding surface 113 is provided on the box connector 11; during the sliding of the hinge shaft 122 along the first hinge groove 31, the first positioning protrusion 1211 slides on the first sliding surface 33; during the sliding of the hinge shaft 122 along the second hinge groove 111, the second positioning protrusion 1231 slides on the second sliding surface 113.

[0065] The first sliding surface 33 and the second sliding surface 113 can both be horizontal planes. This allows the first positioning protrusion 1211 to slide smoothly on the first sliding surface 33 when the second positioning protrusion 1231 engages with the second positioning groove 112; similarly, when the first positioning protrusion 1211 engages with the first positioning groove 32, the second positioning protrusion 1231 can slide smoothly on the second sliding surface 113. This design reduces friction through smooth sliding surfaces, improving the smoothness of the hinge shaft 122's movement. The sliding surface design also reduces wear, extends the service life of the hinge assembly 10, and ensures smooth switching of the positioning components at different stages, further enhancing the stability of the door's opening and closing.

[0066] like Figures 4 to 7 As shown, the first positioning part 121 further includes a first positioning block 1212, and a first positioning protrusion 1211 is fixedly connected to the first positioning block 1212. The second positioning part 123 further includes a second positioning block 1232, and the second positioning protrusion 1231 is fixedly connected to the second positioning block 1232. The positioning mechanism 12 further includes a connecting rod 1213. The first positioning block 1212 and the second positioning block 1232 are respectively located at one end of the connecting rod 1213. The hinge shaft 122 includes a through hole 1221 extending along its own extension direction, and the connecting rod 1213 is inserted into the through hole 1221. Figure 6 and Figure 7 In the first positioning block 1212, a first positioning protrusion 1211 and a connecting rod 1213 are respectively connected. The second positioning block 1232 is connected to a second positioning protrusion 1231 and has a through hole 1221. The connecting rod 1213 passes through the hinge shaft 122 and the second positioning block 1232 in sequence. In addition, a retaining spring 125 can be provided at the end of the connecting rod 1213 to fix the second positioning block 1232.

[0067] The connecting rod 1213 and the through hole 1221 include a matching first constraint plane 1214, which prevents relative rotation between the connecting rod 1213 and the hinge shaft 122. The hinge shaft 122 has matching second constraint planes 1222 with the first hinge slot 31 and the second hinge slot 111, which also prevent relative rotation between the hinge shaft 122 and either the first hinge slot 31 or the second hinge slot 111. The first constraint plane 1214 and the second constraint plane 1222 prevent relative rotation between the two parts through the contact of the constraint surfaces. Figures 4 to 7As shown. The design of the constraint plane prevents relative rotation between the connecting rod 1213 and the hinge shaft 122, ensuring stable movement of the hinge shaft 122 within the first hinge groove 31 and the second hinge groove 111. In particular, when the first positioning protrusion 1211 and the second positioning protrusion 1231 cooperate with the first positioning groove 32 and the second positioning groove 112, it can prevent the rotation of the first positioning protrusion 1211 and the second positioning protrusion 1231 from causing non-cooperation with the first positioning groove 32 and the second positioning groove 112, further improving the accuracy and reliability of the door opening and closing.

[0068] Furthermore, since the cooperation relationship between the first positioning protrusion 1211, the second positioning protrusion 1231 and the first positioning groove 32 and the second positioning groove 112 only needs to ensure that the protrusion is inserted into or disengaged from the positioning groove, and is unrelated to the relationship between the parts, the positions of the first positioning protrusion 1211 and the first positioning groove 32, or the positions of the second positioning protrusion 1231 and the second positioning groove 112, can be interchanged to achieve the expected purpose.

[0069] Furthermore, the distance between the first positioning block 1212 and the second positioning block 1232 satisfies the condition that either the first positioning protrusion 1211 or the second positioning protrusion 1231 is always inserted into either the first positioning groove 32 or the second positioning groove 112. When the first positioning protrusion 1211 is inserted into the first positioning groove 32, the second positioning protrusion 1231 is separated from the second positioning groove 112. When the second positioning protrusion 1231 is inserted into the second positioning groove 112, the first positioning protrusion 1211 is separated from the first positioning groove 32. The positions of the first positioning block 1212 and the second positioning block 1232 are always relatively fixed. The first positioning block 1212 and the second positioning block 1232 move up and down synchronously, and the corresponding distance between the first positioning protrusion 1211 and the second positioning protrusion 1231 is also always relatively fixed.

[0070] Preferably, the first positioning groove 32 and the second positioning groove 112 have the same depth, the first positioning protrusion 1211 and the second positioning protrusion 1231 have the same protrusion length, and the distance between the first positioning protrusion 1211 and the second positioning protrusion 1231 is equal to the distance between the first sliding surface 33 and the second sliding surface 113 minus the depth of the first positioning groove 32. In this way, when the first positioning block 1212 and the second positioning block 1232 move up and down, only one positioning protrusion is in the positioning groove at any time, ensuring smooth switching between the first positioning part 121 and the second positioning part 123.

[0071] During the opening of the door, when the hinge shaft 122 slides along the second hinge groove 111 to the end of its stroke, the first positioning protrusion 1211 aligns with the first positioning groove 32, and the second positioning protrusion 1231 aligns with the second positioning groove 112. During the closing of the door, when the hinge shaft 122 slides along the first hinge groove 31 to the end of its stroke, the first positioning protrusion 1211 aligns with the first positioning groove 32, and the second positioning protrusion 1231 aligns with the second positioning groove 112. This position is as follows: Figure 10 and Figure 11 As shown, the positioning protrusions and positioning grooves of the two positioning parts are aligned at this position, realizing the switching at this position. Combining the distance relationship mentioned above, at this position, since the hinge shaft 122 has already slid to the end of the stroke of the second hinge groove 111, it cannot slide further. The continued opening and rotation of the door can only be achieved by the sliding of the hinge shaft 122 in the first hinge groove 31. Therefore, the first positioning part 121 and the second positioning part 123 are pressed upward until the first positioning protrusion 1211 disengages from the first positioning groove 32, while the second positioning protrusion 1231 inserts into the second positioning groove 112, realizing the switching between the first hinge groove 31 and the second hinge groove 111.

[0072] By precisely controlling the distance between the positioning blocks, it is ensured that at least one of the first positioning protrusion 1211 and the second positioning protrusion 1231 is always in a working state during the switching process. This design ensures smooth switching of the positioning components at different stages and improves the working efficiency of the entire hinge assembly 10. Whether the door is opening or closing, the positioning protrusions can be accurately positioned, realizing the orderly movement of the hinge axis 122 and avoiding conflicts and disorder during movement.

[0073] The positioning mechanism 12 also includes an elastic element 124, which drives the first positioning protrusion 1211 to move towards the first positioning groove 32, or drives the second positioning protrusion 1231 to move towards the second positioning groove 112. The elastic element 124 can be configured as a compression spring, always abutting between the hinge shaft 122 and the second positioning part 123. The design of the elastic element 124 further enhances the flexibility and response speed of the positioning component. Through the action of the elastic element 124, the positioning protrusion can quickly respond to changes in movement, realize the automatic switching of the positioning component, improve the adaptability and flexibility of the hinge assembly 10, and ensure the smooth movement of the door during opening and closing.

[0074] like Figure 4 As shown, the ends of the first positioning protrusion 1211 and the second positioning protrusion 1231 are both rounded. The rounded corner design reduces the friction when the positioning protrusion slides in the groove, which not only improves the smoothness of sliding, but also reduces the wear of the positioning components.

[0075] The first positioning block 1212 has first positioning protrusions 1211 on both sides, and two first positioning grooves 32 corresponding to the first positioning protrusions 1211. The second positioning block 1232 has second positioning protrusions 1231 on both sides, and two second positioning grooves 112 corresponding to the second positioning protrusions 1231. By setting multiple positioning grooves and positioning protrusions, the force is more evenly distributed, which further improves the stability and reliability of the positioning components, ensures accurate positioning of the positioning components at different stages, and improves the working efficiency and durability of the entire hinge assembly 10. In addition, the first positioning groove 32 and the second positioning groove 112 can also be set as annular grooves, so that the first positioning protrusions 1211 and the second positioning protrusions 1231 can also fall into the positioning grooves after rotation.

[0076] During at least a portion of the opening of the door, the second hinge groove 111 constrains the hinge axis 122 to move toward the first side, wherein the first side is the side of the door away from the hinge assembly 10 on the plane where the second hinge groove 111 is located when the door is closed.

[0077] by Figure 2 , Figures 8 to 13 Taking the hinge in the middle as an example, which is located on the right side of the door, and specifically the lower hinge of the door, the insertion direction T1 of the hinge shaft 122 into the first hinge slot 31 and the second hinge slot 111 is from top to bottom. Therefore, the plane perpendicular to the insertion direction T1 of the hinge shaft 122 into the shaft hole is the horizontal plane. On the horizontal plane when the door is closed, the end of the door away from the hinge assembly 10 is relative to the left side of the hinge assembly 10. Therefore, in the first stage of opening the door, the hinge shaft 122 moves to the left along the second hinge. That is to say, the end of the door away from the hinge rotates to the right, while the side closer to the hinge assembly 10 moves to the left as a whole. In this way, when the door is opened to the right, the right end of the door can be prevented from hitting the cabinet 40 on the right side.

[0078] Similarly, if the hinge assembly 10 is on the left side of the door, when the door opens to the left, the second hinge slot 111 constrains the hinge shaft 122 to move to the right to prevent the left side of the door from hitting the left side of the cabinet 40.

[0079] In addition, the terms "left side," "right side," and "first side" here refer to areas within one side. For example, when the door rotates to the right, it doesn't necessarily move straight to the right. Similarly, moving to the first side doesn't necessarily mean moving straight to the left. The second hinge groove 111 constrains the hinge axis 122 to move to the left while also constraining it to move forward. That is, the second hinge groove 111 can extend to the left front. This simultaneously prevents the door from colliding with the cabinet 40 and the box 20, ensuring the stability of the hinge axis 122 and the smoothness of the door opening and closing. During use, it provides better support and avoidance of the cabinet 40, improving the user experience of the built-in refrigerator.

[0080] The hinge shaft 122 is constrained to move in a specific direction by the second hinge groove 111, ensuring that the door can smoothly avoid adjacent cabinets or drawers during opening. This design improves the stability and safety of the door during opening and closing by precisely controlling the movement trajectory of the hinge shaft 122. The design of the constraint surface ensures the accurate positioning of the hinge shaft 122 during movement, avoiding mechanical failures and safety hazards caused by positional deviations.

[0081] The specific orientation of the first hinge groove 31 and the second hinge groove 111 can be designed according to the motion trajectory of the rotating shaft.

[0082] like Figure 3 , 8 As shown in Figure 13, both the first hinge groove 31 and the second hinge groove 111 are set as arc-shaped grooves, and the angle corresponding to the arc-shaped trajectory of the hinge shaft 122 moving in the first hinge groove 31 and the second hinge groove 111 is not less than 90°.

[0083] The arc-shaped groove design allows the hinge shaft 122 to move in a circular arc relative to the first hinge groove 31 and the second hinge groove 111, while maintaining a constant distance from the center of the circle, resulting in smoother movement.

[0084] Because the hinge shaft 122 has a matching second constraint plane 1222 with the first hinge slot 31 and the second hinge slot 111, the second constraint plane 1222 prevents relative rotation between the hinge shaft 122 and the first hinge slot 31 or the second hinge slot 111. In other words, the hinge shaft 122 cannot rotate arbitrarily within the first hinge slot 31 and the second hinge slot 111. The rotation of the door body transforms the hinge shaft 122 into relative movement with the first hinge slot 31 or the second hinge slot 111. Furthermore, when the door body rotates, the rotation angle of the door body is the same as the rotation angle of the hinge shaft 122. That is, the angle of the arc corresponding to the path through which the hinge shaft 122 moves in the first hinge slot 31 or the second hinge slot 111 is the opening angle of the door body. Thus, by allocating the angle value corresponding to the arc trajectory of the hinge shaft 122 moving in the first hinge slot 31 and the second hinge slot 111 according to the required opening angle, the opening angle requirement can be met.

[0085] For example, assuming a door opening angle of approximately 120° is required, and the hinge shaft 122 moves from one end to the other within both the first hinge slot 31 and the second hinge slot 111, the angle corresponding to the arc-shaped groove in the first hinge slot 31 can be 60°±15°, and the angle corresponding to the arc-shaped groove in the second hinge slot 111 can also be 60°±15°. For instance, it could be a combination of 60° and 60°, or a combination of 50° and 70°. Thus, after the door opens 60°±15° by moving the hinge shaft 122 within the second hinge slot 111, it then opens another 60°±15° by moving the hinge shaft 122 within the first hinge slot 31, achieving the maximum opening angle requirement of 120°. The angle between the first hinge slot 31 and the second hinge slot 111 can be measured as the angle between the tangents of the arc from the starting point to the end point.

[0086] As mentioned above, the positioning component of the hinge assembly 10 can also be electrically controlled. For example, by integrating a sensor and a motor into the hinge assembly 10, when the hinge axis 122 moves to a specific position, the sensor detects a signal and controls the motor to drive the positioning component to switch, thereby achieving automatic switching between different locking structures. This design further improves the switching accuracy and response speed of the positioning component, making it suitable for the intelligent control requirements of high-end refrigeration equipment 100.

[0087] Compared with commonly used technologies, this embodiment has the following advantages:

[0088] The hinge assembly 10, by setting a first positioning part 121 and a second positioning part 123, restricts the sliding of the hinge shaft 122 in the first hinge groove 31 and the second hinge groove 111, respectively. This ensures that only one hinge shaft moves relative to the hinge groove at each stage, realizing the orderly movement of the hinge shaft in different hinge grooves. This avoids the conflict and difficulty in controlling the opening trajectory caused by the disordered movement of traditional dual-axis hinges in two hinge grooves. It ensures that the door can smoothly avoid the cabinet next to it during the opening process, improves the convenience of opening the door, enhances the working reliability and service life of the hinge, and avoids mechanical failures caused by disordered movement.

[0089] Specifically, when the hinge shaft 122 slides to the end of the stroke of the second hinge groove 111, the structural design of the positioning component allows for automatic switching at this position. The second positioning part 123 then restricts the relative movement between the hinge shaft 122 and the second hinge groove 111, allowing the door to continue opening and closing smoothly. This design avoids the conflicts and disorder that may be caused by the simultaneous movement of the two shafts, improving the smoothness and reliability of the door's opening and closing.

[0090] This improves the reliability and lifespan of the hinge, and avoids mechanical failures caused by disordered movement.

[0091] (2) In a traditional dual-axis hinge, the two axes do not move in the same direction, so there is a force conflict between the movement of the axes and the door needs a large force to open. However, the hinge axis 122 of the hinge assembly 10 moves only in one hinge slot at a time, so there is no force conflict and a smaller force can be used to open the door.

[0092] (3) Traditional dual-axis hinges have a large hinge size because two axes are set on the hinge at the same time and move in two slots. However, in this hinge assembly 10, the first hinge slot 31 is on the door body and the second hinge slot 111 is on the box body 20 connector 11. Setting hinge slots on the two components respectively makes the volume of the hinge assembly 10 relatively smaller.

[0093] This invention not only improves the convenience and user experience of the refrigeration equipment 100 in the installation design, but also significantly improves the mechanical reliability and durability of the equipment, and has important application value and market prospects.

[0094] 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.

[0095] 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 refrigeration appliance (100) comprising a cabinet (20), a door body and a hinge assembly (10), characterized in that, The hinge assembly (10) comprises a cabinet connecting piece (11) and a positioning mechanism (12), the cabinet connecting piece (11) is fixedly connected to the cabinet (20), a first hinge groove (31) is arranged on the door body, a second hinge groove (111) is arranged on the cabinet connecting piece (11), the positioning mechanism (12) comprises a hinge shaft (122), a first positioning part (121) and a second positioning part (123), the hinge shaft (122) is inserted into the first hinge groove (31) and the second hinge groove (111) at the same time; The first positioning part (121) is used for limiting the movement of the hinge shaft (122) in the first hinge groove (31) during the sliding of the hinge shaft (122) along the second hinge groove (111), and the second positioning part (123) is used for limiting the movement of the hinge shaft (122) in the second hinge groove (111) during the sliding of the hinge shaft (122) along the first hinge groove (31).

2. The refrigeration appliance (100) of claim 1, characterized in that During the opening of the door body, when the hinge shaft (122) slides to the end of the stroke of the second hinge groove (111) along the second hinge groove (111), the first positioning part (121) stops limiting the relative fixation of the first hinge groove (31) and the hinge shaft (122); During the closing of the door body, when the hinge shaft (122) slides to the end of the stroke of the first hinge groove (31) along the first hinge groove (31), the second positioning part (123) stops limiting the relative fixation of the second hinge groove (111) and the hinge shaft (122).

3. The refrigeration appliance (100) of claim 2, characterized in that The door body comprises a door body trim (30), and the first hinge groove (31) is arranged on the door body trim (30).

4. The refrigeration appliance (100) of claim 3, characterized in that The first positioning part (121) comprises a first positioning protrusion (1211), the door body trim (30) is provided with a first positioning groove (32), and the first positioning protrusion (1211) is inserted into the first positioning groove (32) when the first positioning part (121) limits the relative fixation of the first hinge groove (31) and the hinge shaft (122). The second positioning part (123) comprises a second positioning protrusion (1231), the cabinet connecting piece (11) is provided with a second positioning groove (112), and the second positioning protrusion (1231) is inserted into the second positioning groove (112) when the second positioning part (123) limits the relative fixation of the second hinge groove (111) and the hinge shaft (122).

5. The refrigeration appliance (100) of claim 4, characterized in that The door body trim (30) is provided with a first sliding surface (33), and the cabinet connecting piece (11) is provided with a second sliding surface (113); During the sliding of the hinge shaft (122) along the first hinge groove (31), the first positioning protrusion (1211) slides on the first sliding surface (33); During the sliding of the hinge shaft (122) along the second hinge groove (111), the second positioning protrusion (1231) slides on the second sliding surface (113).

6. The refrigeration appliance (100) of claim 5, characterized in that The first positioning part (121) further comprises a first positioning block (1212), and the first positioning protrusion (1211) is fixedly connected to the first positioning block (1212); the second positioning part (123) further comprises a second positioning block (1232), and the second positioning protrusion (1231) is fixedly connected to the second positioning block (1232); the positioning mechanism (12) further comprises a connecting rod (1213), and the first positioning block (1212) and the second positioning block (1232) are located at opposite ends of the connecting rod (1213) respectively; the hinge shaft (122) comprises a through hole (1221) penetrating in the extending direction of the hinge shaft (122), and the connecting rod (1213) is inserted into the through hole (1221); The connecting rod (1213) and the through hole (1221) comprise a first constraint plane (1214) which is fitted, and the first constraint plane (1214) prevents relative rotation of the connecting rod (1213) and the hinge shaft (122); the hinge shaft (122) and the first hinge groove (31) and the second hinge groove (111) comprise a second constraint plane (1222) which is fitted, and the second constraint plane (1222) prevents relative rotation of the hinge shaft (122) and the first hinge groove (31) or the second hinge groove (111).

7. The refrigeration appliance (100) of claim 6, characterized in that The distance between the first positioning block (1212) and the second positioning block (1232) satisfies that the first positioning protrusion (1211) and the second positioning protrusion (1231) are inserted into the first positioning groove (32) or the second positioning groove (112) at all times, and when the first positioning protrusion (1211) is inserted into the first positioning groove (32), the second positioning protrusion (1231) is separated from the second positioning groove (112), and when the second positioning protrusion (1231) is inserted into the second positioning groove (112), the first positioning protrusion (1211) is separated from the first positioning groove (32); During the process of opening the door body, when the hinge shaft (122) slides along the second hinge groove (111) to the end of the stroke of the second hinge groove (111), the first positioning protrusion (1211) is aligned with the first positioning groove (32), and the second positioning protrusion (1231) is aligned with the second positioning groove (112); During the process of closing the door body, when the hinge shaft (122) slides along the first hinge groove (31) to the end of the stroke of the first hinge groove (31), the first positioning protrusion (1211) is aligned with the first positioning groove (32), and the second positioning protrusion (1231) is aligned with the second positioning groove (112).

8. The refrigeration appliance (100) of claim 7, characterized in that The positioning mechanism (12) further comprises elastic members (124) for driving the first positioning protrusions (1211) to move towards the first positioning grooves (32) or for driving the second positioning protrusions (1231) to move towards the second positioning grooves (112).

9. The refrigeration appliance (100) of claim 4, characterized in that, Ends of the first positioning protrusions (1211) and the second positioning protrusions (1231) are provided with rounded corners; The first positioning blocks (1212) are provided with the first positioning protrusions (1211) on both sides, and the first positioning grooves (32) are provided with two corresponding first positioning protrusions (1211); The second positioning blocks (1232) are provided with the second positioning protrusions (1231) on both sides, and the second positioning grooves (112) are provided with two corresponding second positioning protrusions (1231).

10. The refrigeration appliance (100) of claim 1, characterized in that, During at least part of the opening process of the door body, the second hinge groove (111) restricts the hinge shaft (122) to move to a first side, wherein the first side is a side of the hinge assembly (10) relative to which an end of the door body away from the hinge assembly (10) when the door body is closed.

11. The refrigeration appliance (100) of claim 1, characterized in that, The first hinge groove (31) and the second hinge groove (111) are both provided as arc-shaped grooves, and an angle corresponding to an arc-shaped track of the hinge shaft (122) moving in the first hinge groove (31) and the second hinge groove (111) is not less than 90°.

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