TWI853693B - Refrigerator and door hinge assembly - Google Patents

Abstract

A refrigerator and a door axis assembly thereof, the refrigerator comprising a box body, a door panel and two door axis assemblies. Each of the door axis assemblies comprises a positioning member and a movable seat. Each of the positioning members is mounted on the box body and comprises a longitudinally extending positioning pin. The movable seats are respectively mounted on the upper and lower sides of the door panel, and each of the movable seats comprises a slide groove in which the positioning pin can slide horizontally. The front-to-back distance from the center of curvature of the first groove section of the slide groove to the inner surface of the door panel is not less than the front-to-back distance from the outer surface of the door panel to the inner surface of the door panel. When the door panel is operated and rotates away from the box body with the center of curvature of the first groove section as the axis, the outer edge of the door panel will be driven to rotate toward the box body and the positioning pin, thereby allowing the outer edge of the door panel to retreat to the front of the box body to achieve the effect of reducing the space occupied.

Description

Refrigerator and door hinge assembly

The present invention relates to a door hinge assembly, and in particular to a door hinge assembly used in a refrigerator.

With the improvement of the quality of life, modern people pay more and more attention to home decoration design. In order to make large household appliances (such as refrigerators) harmonious with the home decoration design and not obtrusive, large household appliances are usually embedded in the cabinets made of interior decoration to save the overall space and have the effect of hiding large household appliances. However, when the user opens the door panel of the large household appliance, the side of the door panel of the large household appliance near the door axis usually protrudes from the outside of the main body of the large household appliance during the rotation process, so that the door panel of the large household appliance interferes with the cabinet and cannot be fully opened. As a result, when the large household appliance is embedded in the cabinet, the door panel must protrude forward from the cabinet to be opened, which is visually unsightly and occupies a large space.

Therefore, the object of the present invention is to provide a door hinge assembly that can solve the above-mentioned problems.

Therefore, the door axis assembly of the present invention is applicable to a box body and a door panel located in front of the box body, the door panel includes an inner surface facing the box body, an outer surface opposite to the inner surface of the door panel, and a door panel side surface connected to the inner surface of the door panel and the outer surface of the door panel on two opposite sides, the inner surface of the door panel has an inner edge connected to the side surface of the door panel, the outer surface of the door panel has an outer edge connected to the side surface of the door panel, and the door axis assembly includes a positioning member and a movable seat.

The positioning member is suitable for being installed on the box body, and comprises a connecting plate portion protruding from the front side of the box body, and a positioning pin connected to the connecting plate portion and extending longitudinally.

The movable seat includes a seat body suitable for being installed on one of the upper and lower sides of the door panel, and a slide groove formed on one side of the seat body facing the connecting plate portion and allowing the positioning pin to slide transversely therein. The slide groove has a first groove section in a curved shape. The front-to-rear distance from the center of curvature of the first groove section to the inner surface of the door panel is not less than the front-to-rear distance from the outer surface of the door panel to the inner surface of the door panel. The first groove section has a first end and a second end, and the first end is farther from the side surface of the door panel than the second end.

Among them, when the door panel is operated and rotates in the direction away from the box body with the curvature center of the first groove segment as the axis, the movable seat will change from the position where the first end of the first groove segment is aligned with the positioning pin to the position where the second end of the first groove segment is aligned with the positioning pin, thereby driving the inner edge of the door panel to rotate in the direction away from the box body and close to the positioning pin, and driving the outer edge of the door panel to rotate in the direction close to the box body and the positioning pin.

In some implementations, the left-right distance from the center of curvature of the first groove segment to the side surface of the door panel is no more than half of the front-to-back distance from the outer surface of the door panel to the inner surface of the door panel.

In some embodiments, the box has a box front surface facing forward. When the movable seat is in a position where the first end of the first slot section is aligned with the positioning pin, the inner surface of the door panel is spaced apart from the box front surface, and the extension direction of the inner surface of the door panel is parallel to the extension direction of the box front surface, and the left-right distance from the center of curvature of the first slot section to the side surface of the door panel is not greater than half of the front-rear distance from the outer surface of the door panel to the box front surface.

In some embodiments, the box body has a box body front surface facing forward, and a box body side surface extending backward from a side edge of the box body front surface adjacent to the door panel side surface. The positioning pin has a first positioning portion and a second positioning portion. The first positioning portion is farther from the box body front surface and the box body side surface than the second positioning portion. The slide groove also has a second groove section that is curved and located between the first groove section and the door panel side surface. The second groove section has a third end and a fourth end. The third end is farther from the door panel side surface than the fourth end and adjacent to the door panel inner surface. The third end is adjacent to the door panel inner surface than the first end. The center of curvature of the second groove section is farther from the side surface of the door panel and closer to the inner surface of the door panel than the center of curvature of the first groove section. When the movable seat slides relative to the positioning pin and changes from the position where the first end is aligned with the first positioning portion and the second end is aligned with the second positioning portion to the position where the third end is aligned with the first positioning portion and the fourth end is aligned with the second positioning portion, the door panel is linked to rotate in a direction away from the box body with the center of curvature of the first groove section and the center of curvature of the second groove section as the axis, thereby allowing the door panel to move in a direction away from the side surface of the box body and closer to the front surface of the box body.

In some embodiments, the door shaft assembly further includes a buffer. The base is suitable for installation on the bottom side of the door panel, and the opening of the slide groove faces downward. The positioning member also includes a fixing portion connected to the front side of the box body, the connecting plate portion extends forward from the fixing portion and abuts against the bottom of the base, the positioning pin extends upward from the connecting plate portion and can be inserted into the slide groove in a relatively horizontal sliding manner, and the buffer is installed between the base and the bottom side of the door panel.

In some embodiments, the movable seat further includes a hook connected to a side of the seat body away from the side surface of the door panel. The hook defines a slot with an opening toward the side surface of the door panel. The positioning member further includes a protrusion protruding from a side of the connecting plate portion away from the side surface of the box body in a direction away from the side surface of the box body. When the movable seat is in a position where the first end of the first slot section is aligned with the positioning pin, the side of the protrusion away from the first end is against the slot wall of the slot. When the movable seat is in a position where the second end of the first slot section is aligned with the positioning pin, the hook does not contact the protrusion.

Therefore, another object of the present invention is to provide a refrigerator that can solve the above-mentioned problems.

Therefore, the refrigerator of the present invention comprises a box body, a door panel and the two aforementioned door hinge assemblies.

The door panel is located in front of the box body and includes an inner surface of the door panel facing the box body, an outer surface of the door panel opposite to the inner surface of the door panel, and a side surface of the door panel connected to the inner surface of the door panel and the outer surface of the door panel on two opposite sides. The inner surface of the door panel has an inner edge of the door panel connected to the side surface of the door panel, and the outer surface of the door panel has an outer edge of the door panel connected to the side surface of the door panel.

The door shaft assemblies are arranged at intervals on the same side of the box body. The movable seats of the door shaft assemblies are respectively installed on the upper and lower sides of the door panel, and the positioning members of the door shaft assemblies are respectively installed on the upper and lower sides of the box body. The connecting plate portion of the positioning member located on the upper side of the box body protrudes above the door panel, and the positioning pin of the positioning member located on the upper side of the box body extends downward into the slide groove. The connecting plate portion of the positioning member located on the lower side of the box body protrudes below the door panel, and the positioning pin of the positioning member located on the lower side of the box body extends upward into the slide groove.

The effect of the present invention is that: by forming the slide groove in which the positioning pin can slide transversely through the seat body, the door panel can be driven by the movable seat to rotate with the curvature center of the first groove section as the axis, and then the outer edge of the door panel rotates toward the direction close to the box body and the positioning pin and retracts to the front of the box body, so as to achieve the effect of reducing the occupied space, and enable the refrigerator to be completely embedded in the cabinet to achieve an aesthetic effect, and at the same time, it can also prevent the door panel from interfering with external objects (cabinets) when in use.

Before the present invention is described in detail, it should be noted that similar components are represented by the same reference numerals in the following description.

Referring to Figures 1 to 3, an embodiment of the refrigerator of the present invention is shown. The refrigerator includes a box body 1 and a door panel 2 arranged in a front-to-back direction X, and two door axis assemblies 3 arranged in an up-to-down direction Z. The box body 1 is in the form of a rectangular parallelepiped but is not limited thereto, and is used for refrigerating and freezing food or other supplies. The box body 1 has a box body front surface 11 facing forward and extending along a left-right direction Y and the up-to-down direction Z, and a box body side surface 12 extending backward from one of the left and right side edges of the box body front surface 11. The front-to-back direction X, the left-to-right direction Y and the up-to-down direction Z are not parallel to each other. In this embodiment, the front-to-back direction X, the left-to-right direction Y and the up-to-down direction Z are perpendicular to each other.

The door panel 2 is openably disposed in front of the box 1 to shield the refrigeration or freezing space of the box 1. The door panel 2 includes a door panel inner surface 21, a door panel outer surface 22 opposite to the door panel inner surface 21, and a door panel side surface 23 with two opposite sides respectively connected to the door panel inner surface 21 and a side of the door panel outer surface 22 adjacent to the box side surface 12. The door panel inner surface 21 has a door panel inner edge 211 connected to the door panel side surface 23. The door panel outer surface 22 has a door panel outer edge 221 connected to the door panel side surface 23. When the door panel 2 is in a closed state as shown in FIG. 3 , the inner surface 21 of the door panel faces the front surface 11 of the box body and extends along the left-right direction Y and the up-down direction Z, and the side surface 23 of the door panel extends along the front-back direction X and the up-down direction Z and is aligned with the side surface 12 of the box body in the front-back direction X, so that the door panel 2 can just cover the box body 1 and have a beautiful visual effect.

1 to 3 and 8 , the door axis assemblies 3 are disposed at intervals on the upper and lower sides of the box body 1 adjacent to the side surface 12 of the box body. In the present embodiment, the door axis assemblies 3 are respectively arranged at the upper and lower positions on the right side of the housing 1, so that the refrigerator is an example of a single-door refrigerator that can be opened from left to right. However, in other embodiments not shown in the figures, the door axis assemblies 3 can also be arranged at the upper and lower positions on the left side of the housing 1, so that the refrigerator is an example of a single-door refrigerator that can be opened to the left; or the refrigerator is provided with a group of the door axis assemblies 3 arranged up and down on the left and right sides of the housing 1, and the door panels 2 are respectively provided on the left and right sides of the housing 1, so that the refrigerator is an example of a double-door refrigerator that can be opened to the left and right, respectively. The implementation of the refrigerator is not limited to the above description. Subsequently, for the convenience of explanation and simplification of the explanation content, the door axis assembly 3 arranged on the top surface of the box body 1 (i.e., located on the upper side of the box body 1) will be taken as an example of the first door axis assembly 3a, and the door axis assembly 3 arranged on the front surface 11 of the box body and located below the first door axis assembly 3a (i.e., located on the lower side of the box body 1) will be taken as an example of the second door axis assembly 3b.

Referring to Figures 3, 4, 8 and 9, each of the door shaft assemblies 3 includes a positioning member 31 and a movable seat 32. The positioning members 31 of the door shaft assemblies 3 are respectively mounted on the upper and lower sides of the housing 1. The positioning member 31 of each of the door shaft assemblies 3 has a fixed portion 311 mounted on the housing 1, a connecting plate portion 312 extending forward from the fixing portion 311 and protruding from the front side of the housing 1, and a positioning pin 313 connected to the connecting plate portion 312 and extending longitudinally (i.e., along the up-down direction Z). In this embodiment, the first door axis assembly 3a is flat-plate-shaped as shown in FIG3 , and the fixing portion 311 and the connecting plate portion 312 of the first door axis assembly 3a both extend along the front-rear direction X and the left-right direction Y. The fixing portion 311 of the first door axis assembly 3a is mounted on the top surface of the box body 1, and the connecting plate portion 312 of the first door axis assembly 3a is located above the door panel 2. The positioning pin 313 of the first door axis assembly 3a extends downward from the bottom surface of the connecting plate portion 312. On the other hand, as shown in Figure 8, the longitudinal section of the second door axis assembly 3b is L-shaped, and the fixing portion 311 of the second door axis assembly 3b extends along the left-right direction Y and the up-down direction Z, and the connecting plate portion 312 of the second door axis assembly 3b extends along the front-back direction X and the left-right direction Y. The fixing portion 311 of the second door axis assembly 3b is installed on the front surface 11 of the box body, and the connecting plate portion 312 of the second door axis assembly 3b extends forward from the fixing portion 311 and abuts against the bottom of the movable seat 32. The positioning pin 313 of the second door axis assembly 3b extends upward from the top surface of the connecting plate portion 312.

Referring to Figures 3 to 6, 8 to 10, and 12, the movable seat 32 of each door hinge assembly 3 has a seat body 33 installed on one of the upper and lower sides of the door panel 2, a slide groove 34 formed on one side of the seat body 33 facing the connecting plate portion 312 and allowing the positioning pin 313 to slide horizontally (i.e., along the front-rear direction X and the left-right direction Y) therein, and a pin 35 inserted longitudinally into the door panel 2 to limit the lateral movement of the seat body 33 relative to the door panel 2. Each of the slide grooves 34 is curved and has a first groove section 341, a second groove section 342 between the first groove section 341 and the side surface 23 of the door panel, and a third groove section 343 whose two opposite ends are respectively connected to the adjacent ends of the first groove section 341 and the second groove section 342. As shown in FIG6 and FIG12, each of the first groove sections 341 has a first end 344 and a second end 345. The first end 344 is farther from the side surface 23 of the door panel than the second end 345. And the front-to-back distance L1 from the center of curvature C1 of the first groove section 341 to the inner surface 21 of the door panel is not less than the front-to-back distance L2 from the outer surface 22 of the door panel to the inner surface 21 of the door panel. In addition, each of the second groove sections 342 has a third end 346 and a fourth end 347. The third end 346 is farther from the door panel side surface 23 and closer to the door panel inner surface 21 than the fourth end 347. And the third end 346 is closer to the door panel inner surface 21 than the first end 344. In this embodiment, when the door panel 2 is in the closed state, the curvature center C2 of each second groove section 342 is farther from the door panel side surface 23 and closer to the door panel inner surface 21 than the curvature center C1 of the corresponding first groove section 341, but the curvature center C2 of the second groove section 342 may also be concentric with the curvature center C1 of the first groove section 341, which is not limited to the above description. In addition, the opening of the slide groove 34 of the first door axis assembly 3a is upward as shown in Figure 4, so that the corresponding positioning pin 313 can be inserted from top to bottom; the opening of the slide groove 34 of the second door axis assembly 3b is downward as shown in Figure 9, so that the corresponding positioning pin 313 can be inserted from bottom to top.

Referring to Fig. 6, Fig. 7, Fig. 12 and Fig. 13, the following is a detailed description of the door opening method of the refrigerator. First, when the door panel 2 is in the closed state as shown in Fig. 6 and Fig. 12, the inner edge 211 of the door panel is aligned with the side surface 12 of the cabinet in the front-rear direction X. At this time, the positioning pin 313 of each door shaft assembly 3 is located at the first end 344 of the corresponding first groove section 341. Then, when the door panel 2 is pulled away from the door shaft assembly 3 (i.e., the door panel 2 is operated) and rotates in the direction away from the box body 1 with the curvature center C1 of each first groove section 341 as the axis, the movable seat 32 of each door shaft assembly 3 is changed to the position of the first end 344 of the first groove section 341 aligned with the corresponding positioning pin 313. The second end 345 of the first slot section 341 is aligned with the position of the positioning pin 313, thereby driving the inner edge 211 of the door panel to rotate in a parabolic trajectory (not shown) in a direction away from the box body 1 and close to the positioning pin 313, and driving the outer edge 221 of the door panel to rotate in another parabolic trajectory (not shown) in a direction close to the box body 1 and the positioning pin 313. In other words, the position of the center of curvature C1 of each first groove section 341 relative to the box body 1 will move in the front-rear direction X and the left-right direction Y as the door panel 2 rotates. In this way, the door panel 2 will also move horizontally during the process of rotating around the center of curvature C1 of each first groove section 341, so that the inner edge 211 of the door panel and the outer edge 221 of the door panel always remain in the position directly in front of the box body 1 (i.e., they will not protrude outside the side surface 12 of the box body).

Next, when the door panel 2 is continuously operated and the opening range of the door panel 2 increases (i.e., the door panel 2 is changed into an open door state as shown in FIGS. 7 and 13 ), the movable seat 32 of each door axis assembly 3 will be changed from the position where the second end 345 of the first slot segment 341 is aligned with the corresponding positioning pin 313 to the position where the third end 346 of the second slot segment 342 is aligned with the positioning pin 313 (see FIG. 7 ). In this way, the door panel 2 will be changed from rotating around the curvature center C1 of each first slot segment 341 to rotating around the curvature center C2 of each second slot segment 342, so that the displacement of the lateral movement of the door panel 2 changes during the rotation around different curvature centers. In this way, by adjusting the curvature of the slide groove 34, the position of the curvature center can be changed as needed, so that the displacement of the door panel during rotation can be controlled.

6 and 12 , preferably, the positioning pin 313 of each door shaft assembly 3 has a first positioning portion 314 and a second positioning portion 315. The first positioning portion 314 is farther from the box front surface 11 and the box side surface 12 than the second positioning portion 315. When the movable seat 32 of each door axis assembly 3 slides relative to the corresponding positioning pin 313 and the position of the first end 344 aligning with the first positioning portion 314 and the second end 345 aligning with the second positioning portion 315 is changed to the position of the third end 346 aligning with the first positioning portion 314 and the fourth end 347 aligning with the second positioning portion 315, the door panel 2 will be linked to rotate in the direction away from the box body 1 with the curvature center C1 of the first groove section 341 and the curvature center C2 of the second groove section 342 as the axis, thereby allowing the door panel 2 to move away from the side surface 12 of the box body and closer to the front surface 11 of the box body. That is, by designing that the first positioning portion 314 and the second positioning portion 315 are misaligned in the front-rear direction X and the left-right direction Y, the positioning pin 313 can only move transversely (i.e., the front-rear direction X and the left-right direction Y) in the slide groove 34, so as to ensure that the door panel 2 rotates around the curvature center of the slide groove 34 instead of the positioning pin 313.

6 and 12, specifically, when the door panel 2 is in the closed state as shown in FIG6 and 12, the left-right distance L3 from the center of curvature C1 of the first groove section 341 to the door panel side surface 23 is not greater than half of the front-rear distance L2 from the door panel outer surface 22 to the door panel inner surface 21. In this way, when the door panel 2 is rotated 90 degrees so that the door panel outer surface 22 is perpendicular to the side surface of the box body 1, the door panel outer surface 22 will not exceed the box body side surface 12 in the left-right direction Y. Preferably, when the door panel 2 is in the closed state as shown in Figures 6 and 12 (i.e., the movable seat 32 is in a position where the first end 344 of the first groove section 341 is aligned with the positioning pin 313), the inner surface 21 of the door panel and the front surface 11 of the box are spaced apart so that an anti-pinch space is reserved between the box 1 and the door panel 2, and the extension direction of the inner surface 21 of the door panel is parallel to the extension direction of the front surface 11 of the box, and the left and right distance L3 from the center of curvature C1 of the first groove section 341 to the side surface 23 of the door panel is not greater than half of the front-to-back distance L4 from the outer surface 22 of the door panel to the front surface 11 of the box. In this way, when the door panel 2 is rotated 90 degrees so that the outer surface 22 of the door panel is perpendicular to the side surface of the box 1, the outer surface 22 of the door panel will not exceed the side surface 12 of the box in the left-right direction Y, and the side surface 23 of the door panel is always located outside the anti-pinch space during the rotation process, so as to prevent the user's hand from being pinched during the rotation of the door panel 2.

Referring to Figures 3, 8, 11 to 13, it is worth mentioning that in the present embodiment, the implementation method of the second portal axis assembly 3b is similar to that of the first portal axis assembly 3a, but the second portal axis assembly 3b further includes a buffer 37 capable of elastic deformation compared to the first portal axis assembly 3a, and the positioning member 31 of the second portal axis assembly 3b further has a protrusion 316 compared to the positioning member 31 of the first portal axis assembly 3a, and the movable seat 32 of the second portal axis assembly 3b further has a reverse hook 36 compared to the movable seat 32 of the first portal axis assembly 3a. In detail, as shown in Figure 11, the movable seat 32 of the second door axis assembly 3b can be locked to the door panel 2 by screws (not shown), and the buffer 37 of the second door axis assembly 3b is installed between the seat 33 of the second door axis assembly 3b and the bottom side of the door panel 2. When the weight of the door panel 2 presses down on the seat 33 of the second door axis assembly 3b and the positioning member 31, the buffer 37 is elastically deformed due to the force, which can reduce the wear of the seat 33 after bearing the load. In addition, the hook 36 of the second door shaft assembly 3b is connected to a side of the base 33 away from the door panel side surface 23, and defines a slot 361 opening toward the door panel side surface 23. And the protrusion 316 of the second door shaft assembly 3b protrudes from a side of the connecting plate portion 312 away from the box side surface 12 toward the direction away from the box side surface 12. As shown in Figures 10 and 12, when the movable seat 32 is in a position where the first end 344 of the first groove section 341 is aligned with the positioning pin 313, the side of the protrusion 316 away from the first end 344 abuts against the groove wall of the slot 361, so that the positioning member 31 is buckled on the movable seat 32 to prevent the door panel 2 from opening when no force is applied. However, when the door panel 2 is operated to open (that is, the movable seat 32 is in a position where the second end 345 of the first groove section 341 is aligned with the positioning pin 313), the hook 36 will move in a direction away from the protrusion 316 (that is, the hook 36 does not contact the protrusion 316), causing the protrusion 316 to disengage from the slot 361.

In summary, the seat body 33 forms the slide groove 34 in which the positioning pin 313 can slide transversely, so that the door panel 2 can be driven by the movable seat 32 to rotate around the curvature center C1 of the first groove section 341, and then the outer edge 221 of the door panel 2 rotates toward the direction close to the box body 1 and the positioning pin 313 and retreats to the front of the box body 1, so as to achieve the effect of reducing the occupied space, and enable the refrigerator to be completely embedded in the cabinet to achieve an aesthetic effect, and at the same time, it can also prevent the door panel 2 from interfering with external objects (cabinets) when in use, so that the purpose of the present invention can be achieved.

However, the above is only an embodiment of the present invention and should not be used to limit the scope of implementation of the present invention. All simple equivalent changes and modifications made according to the scope of the patent application of the present invention and the content of the patent specification are still within the scope of the present patent.

1: Box body 11: Box body front surface 12: Box body side surface 2: Door panel 21: Door panel inner surface 211: Door panel inner edge 22: Door panel outer surface 221: Door panel outer edge 23: Door panel side surface 3: Door axis assembly 3a: First door axis assembly 3b: Second door axis assembly 31: Positioning member 311: Fixed portion 312: Joint plate portion 313: Positioning pin 314: First positioning portion 315: Second positioning portion 316: Protrusion 32: Movable seat 33: Seat body 34: Slide groove 341: First groove section 342: Second groove section 343: Third groove section 344: First end portion 345: Second end 346: Third end 347: Fourth end 35: Latch 36: Hook 361: Slot 37: Buffer C1, C2: Center of curvature L1~L4: Distance X: Front and rear direction Y: Left and right direction Z: Up and down direction

Other features and functions of the present invention will be clearly presented in the implementation method with reference to the drawings, in which: Figure 1 is an incomplete three-dimensional diagram illustrating an embodiment of the refrigerator of the present invention; Figure 2 is an incomplete three-dimensional diagram from another viewing angle; Figure 3 is an enlarged view of the circled portion III of Figure 1; Figure 4 is a three-dimensional exploded view corresponding to Figure 1; Figure 5 is a three-dimensional diagram from a different viewing angle from Figure 3, illustrating a door shaft assembly of the embodiment; Figure 6 is a top view corresponding to Figure 3, illustrating a door panel and the door shaft assembly of the embodiment in a closed state; Figure 7 is a top view, illustrating the door panel and the door shaft assembly in an open state; Figure 8 is an enlarged view of the circled portion VIII of Figure 2; Figure 9 is a three-dimensional exploded view corresponding to Figure 8, with a box of the embodiment removed; FIG. 10 is a three-dimensional view from a different viewing angle from FIG. 8, illustrating another door shaft assembly of the embodiment; FIG. 11 is a cross-sectional view along line XI-XI in FIG. 8; FIG. 12 is a bottom view corresponding to FIG. 8, illustrating the door panel and another door shaft assembly in the door closed state; and FIG. 13 is a bottom view, illustrating the door panel and another door shaft assembly in the door open state.

1: Cabinet

11: Front surface of the cabinet

12: Side surface of the cabinet

2: Door panel

21: Inner surface of door panel

211: Inner edge of door panel

22: Outer surface of door panel

221: Outer edge of door panel

23: Door panel side surface

3: Door hinge assembly

3a: First door shaft assembly

31: Positioning piece

311:Fixed part

312: Connecting plate

313: Positioning pin

314: First positioning part

315: Second positioning part

32: Movable seat

33: Seat

34: Chute

35: Latch

X: front and back direction

Y: Left and right direction

Z: Up and down direction

Claims (7)

A door hinge assembly is applicable to a box body and a door panel located in front of the box body, wherein the door panel comprises an inner surface of the door panel facing the box body, an outer surface of the door panel opposite to the inner surface of the door panel, and a side surface of the door panel connected to the inner surface of the door panel and the outer surface of the door panel on two opposite sides, wherein the inner surface of the door panel has an inner edge of the door panel connected to the side surface of the door panel, and the outer surface of the door panel has a The outer edge of the door panel on the side surface of the door panel, the door axis assembly includes: a positioning member, suitable for installation on the box body, and including a connecting plate protruding from the front side of the box body, and a positioning pin connected to the connecting plate and extending longitudinally; and a movable seat, including a seat body suitable for installation on one side of the upper and lower sides of the door panel, and a side formed on the seat body facing the connecting plate and allowing the positioning pin to move A slide groove capable of sliding transversely therein, the slide groove having a curved first groove section, the front-to-rear distance from the center of curvature of the first groove section to the inner surface of the door panel being not less than the front-to-rear distance from the outer surface of the door panel to the inner surface of the door panel, the first groove section having a first end and a second end, the first end being farther from the side surface of the door panel than the second end, wherein when the door panel is operated with the first groove section In the process of rotating away from the box body with the center of curvature as the axis, the movable seat will change from the position where the first end of the first slot segment is aligned with the positioning pin to the position where the second end of the first slot segment is aligned with the positioning pin, thereby driving the inner edge of the door panel to rotate away from the box body and close to the positioning pin, and driving the outer edge of the door panel to rotate towards the box body and the positioning pin. The door hinge assembly as described in claim 1, wherein the left-right distance from the center of curvature of the first groove section to the side surface of the door panel is no greater than half of the front-to-back distance from the outer surface of the door panel to the inner surface of the door panel. The door hinge assembly as described in claim 2, wherein the box has a front surface facing forward, and when the movable seat is in the position where the first end of the first slot section is aligned with the positioning pin, the inner surface of the door panel is spaced apart from the front surface of the box, and the extension direction of the inner surface of the door panel is parallel to the extension direction of the front surface of the box, and the left-right distance from the center of curvature of the first slot section to the side surface of the door panel is not greater than half of the front-to-back distance from the outer surface of the door panel to the front surface of the box. A door hinge assembly as described in claim 2, wherein the box body has a box body front surface facing forward, and a box body side surface extending backward from a side edge of the box body front surface adjacent to the door panel side surface, the locating pin has a first locating portion and a second locating portion, the first locating portion is farther from the box body front surface and the box body side surface than the second locating portion, the slide groove also has a second groove section that is curved and located between the first groove section and the door panel side surface, the second groove section has a third end and a fourth end, the third end is farther from the door panel side surface than the fourth end and adjacent to the door panel inner surface, the third end is closer to the first end than the fourth end. The first end of the movable seat is adjacent to the inner surface of the door panel, the curvature center of the second groove section is farther from the side surface of the door panel than the curvature center of the first groove section and is adjacent to the inner surface of the door panel. When the movable seat slides relative to the positioning pin and changes from the position where the first end aligns with the first positioning section and the second end aligns with the second positioning section to the position where the third end aligns with the first positioning section and the fourth end aligns with the second positioning section, the door panel is linked to rotate in a direction away from the box body with the curvature center of the first groove section and the curvature center of the second groove section as the axis, thereby allowing the door panel to move away from the side surface of the box body and close to the front surface of the box body. The door hinge assembly as described in claim 1 further comprises a buffer, wherein the base is suitable for being mounted on the bottom side of the door panel, and the opening of the slide groove is downward, the positioning member further comprises a fixing portion connected to the front side of the box body, the connecting plate portion extends forward from the fixing portion and abuts against the bottom of the base, the positioning pin extends upward from the connecting plate portion and can be inserted into the slide groove in a relatively horizontal sliding manner, and the buffer is mounted between the base and the bottom side of the door panel. The door hinge assembly as described in claim 4, wherein the movable seat further comprises a hook connected to a side of the seat body away from the side surface of the door panel, the hook defines a slot with an opening toward the side surface of the door panel, and the positioning member further comprises a convex portion protruding from a side of the connecting plate portion away from the side surface of the box body in a direction away from the side surface of the box body, when the movable seat is in a position where the first end of the first slot section is aligned with the positioning pin, the side of the convex portion away from the first end is against the slot wall of the slot, and when the movable seat is in a position where the second end of the first slot section is aligned with the positioning pin, the hook does not contact the convex portion. A refrigerator, comprising: a box body; a door panel, located in front of the box body, and including an inner surface of the door panel facing the box body, an outer surface of the door panel opposite to the inner surface of the door panel, and a side surface of the door panel connected to the inner surface of the door panel and the outer surface of the door panel on two opposite sides, the inner surface of the door panel having an inner edge of the door panel connected to the side surface of the door panel, and the outer surface of the door panel having an outer edge of the door panel connected to the side surface of the door panel; and two door shaft assemblies as described in claim 1, the door shaft assemblies being arranged on the box body at intervals at the top and bottom. On the same side of the door, the movable seats of the door shaft assemblies are respectively installed on the upper and lower sides of the door panel, the positioning members of the door shaft assemblies are respectively installed on the upper and lower sides of the box body, the connecting plate portion of the positioning member located on the upper side of the box body protrudes above the door panel, and the positioning pin of the positioning member located on the upper side of the box body extends downward into the slide groove, the connecting plate portion of the positioning member located on the lower side of the box body protrudes below the door panel, and the positioning pin of the positioning member located on the lower side of the box body extends upward into the slide groove.

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