WO2019042347A1

WO2019042347A1 - Hinge assembly and refrigerator comprising hinge assembly

Info

Publication number: WO2019042347A1
Application number: PCT/CN2018/103186
Authority: WO
Inventors: 何文华; 王宁; 张珩; 高璇
Original assignee: 青岛海尔股份有限公司
Priority date: 2017-09-01
Filing date: 2018-08-30
Publication date: 2019-03-07
Also published as: CN107630610B; CN107630610A

Abstract

Disclosed in the invention is a hinge assembly (100) used for being connected between a door body (10) and a refrigerator body (20), and therefore when the door body (10) is opened or closed, the door body (10) moves according to the preset track. The preset track comprises a first stage in which the door body (10) moves away from or close to the hinge assembly (100) in the rotation process at the same time, and a second stage in which the door body (10) only rotates. In the first stage of the door body (10) opening process, the door body (10) rotates around the hinge shaft (2) and drives a transmission piece (4) to move by means of a transmission shaft (3), a limiting shaft (41) moves in a guiding groove (12) under the cooperative action of a guiding part (42) and a guiding wall (11), then the hinge shaft (2) is used for driving the door body (10) to move in the direction away from a hinge support (1), and the bottom end of the transmission shaft (3) moves upwards and gradually disengages from the transmission piece (4) in the moving process. After the transmission shaft (3) disengages from the transmission piece (4), the door body (10) is in the second stage of the opening process, the limiting shaft (41) moves to the tail end of the guiding groove (12), and the door body (10) and the transmission shaft (3) rotate around the hinge shaft (2) till the door body (10) is completely opened.

Description

Hinge assembly and refrigerator including the same

The present application claims the priority of the Japanese Patent Application No. JP-A No. No. No. No. No. No. No. No. No. No. in.

Technical field

The present application relates to the field of home appliances, and in particular to a hinge assembly and a refrigerator including the same, and particularly to a hinge assembly and a refrigerator that are less likely to encounter obstacles during door opening.

Background technique

Usually, when the door is opened, the door rotates around the hinge axis. If the refrigerator is placed at a corner, the door can easily touch the side wall or the cabinet when the door is opened. Embedded refrigerators, or some non-embedded refrigerators, are extremely inconvenient to use. Therefore, it is necessary to design a hinge assembly that can move toward the side away from the obstacle during the rotation of the door.

Summary of the invention

In order to solve one of the above problems, the present application proposes a refrigerator.

In order to achieve the above objective, the technical solution provided by an embodiment of the present application is as follows: a hinge assembly for connecting a door body and a box body, so that the door body moves according to a preset trajectory when opening or closing, The preset trajectory includes a first stage in which the door body moves simultaneously away from or near the hinge assembly and a second stage in which the door body only rotates; the hinge assembly includes: a hinge bracket fixed to the box body, and The utility model comprises a guiding wall and a guiding groove which are arranged at intervals; a transmission component cooperates with the hinge bracket to drive the door body to move along a preset trajectory, the transmission component comprises: a hinge shaft; a transmission shaft, a lower end of the transmission shaft The lifting member is arranged to be fixed to the door body; the transmission member is connected to the hinge shaft, and is mutually positioned with the transmission shaft in the first stage of opening the door, and the transmission member is provided with the guiding groove a matching limiting shaft and a guiding portion matching the guiding wall; in the first stage of the door opening process, the door body rotates around the hinge shaft and is driven by the transmission shaft The moving member moves, and the limiting shaft moves in the guiding groove under the cooperation of the guiding portion and the guiding wall, thereby driving the door body to move away from the hinge bracket through the hinge shaft, and during the moving process The bottom end of the drive shaft moves upward and gradually disengages from the transmission member; after the transmission shaft is disengaged from the transmission member, the door body enters a second stage of the opening process, and the limiting shaft moves to the end of the guiding slot, the door The body rotates with the drive shaft about the hinge axis until the door body is fully open.

As a further improvement of the present invention, the hinge bracket protrudes upward to form a boss, and the boss includes an inclined surface extending obliquely upward, and the transmission shaft can be resisted by the inclined surface in the first stage. Gradually rising upward; the boss further includes a sliding surface extending from the highest point of the inclined surface, the sliding surface is horizontal, and in the second stage, the sliding surface abuts the transmission shaft and causes the transmission shaft to be on the sliding surface Swipe up.

As a further improvement of the present invention, the highest point of the inclined surface is flush with the transmission member.

As a further improvement of the present invention, the hinge bracket includes a hinge plate and a fixing plate perpendicular to the hinge plate, the fixing plate is fixed to the box body, and the guiding wall, the guiding groove and the boss are all disposed on a hinge plate; the guide groove extends obliquely to a side of the fixed plate that opens toward the door.

As a further improvement of the present invention, the hinge shaft is disposed on a side of the transmission shaft away from the casing.

As a further improvement of the present invention, the transmission member is formed with a positioning groove that cooperates with the transmission shaft to move the transmission member in the horizontal direction when the transmission shaft moves.

As a further improvement of the present invention, the hinge assembly further includes a connecting plate disposed on an upper side of the transmission member, and the transmission shaft and the hinge shaft are disposed through the connecting plate.

As a further improvement of the present invention, the limiting shaft is disposed between the transmission shaft and the hinge shaft.

As a further improvement of the present invention, the transmission shaft includes a shaft body, an elastic member disposed on the shaft body, and a resisting block abutting against the elastic member, the shaft body penetrating the resisting block in the first stage The abutting block abuts against the elastic member and causes the elastic member to compress and deform.

In order to achieve the above object, the technical solution provided by an embodiment of the present application is as follows: a refrigerator, the refrigerator includes a box body and a door body that is opened and closed on the box body, and the refrigerator further includes a hinge as described above. Component.

Advantageous Effects of Invention In the hinge assembly of the present invention, the hinge shaft is used to provide a shaft for rotating the door body, so that the door body is rotated, that is, the drive shaft is moved, and the transmission shaft is moved. The driving member is driven to move, and the moving track of the transmission member is set, so that the transmission member drives the transmission shaft to move in the horizontal direction to drive the door body to move away from the hinge bracket. Thereby, the door body not only rotates in the first stage of opening the door, but also moves away from the hinge bracket for a distance to prevent the door body from touching the obstacle during the continuous opening process.

DRAWINGS

The drawings described herein are intended to provide a further understanding of the present application, and are intended to be a part of this application. In the drawing:

1 is a schematic structural view of a casing, a door body and a hinge assembly thereof according to the present invention;

Figure 2 is a schematic view showing the overall structure of the hinge assembly of the present invention;

Figure 3 is a schematic view showing the overall structure of another embodiment of the hinge assembly of the present invention;

Figure 4 is a schematic view of the hinge assembly of the present invention with the hinge shaft and the drive shaft removed;

Figure 5 is a schematic view showing the structure of the hinge assembly of the present invention from another perspective;

Figure 6 is a schematic view showing the structure of the hinge assembly of the present invention for removing the transmission member and the connecting plate.

Detailed ways

The technical solutions of the present application will be clearly and completely described in the following with reference to the specific embodiments of the present application and the corresponding drawings. It is apparent that the described embodiments are only a part of the embodiments of the present application, and not all of them. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present application without departing from the inventive scope are the scope of the present application.

The embodiments of the present invention are described in detail below, and the examples of the embodiments are illustrated in the drawings, wherein the same or similar reference numerals are used to refer to the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are intended to be illustrative of the invention and are not to be construed as limiting.

In the description of the present invention, it is to be understood that the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", The orientation or positional relationship of the indications of "horizontal", "top", "bottom", "inside", "outside", etc. is based on the orientation or positional relationship shown in the drawings, only for the convenience of describing the present invention and simplifying the description, rather than It is to be understood that the device or elements referred to have a particular orientation, are constructed and operated in a particular orientation and are therefore not to be construed as limiting.

In the description of the present invention, unless otherwise specified and limited, it should be noted that the terms "mounted", "connected", and "connected" are to be understood broadly, and may be, for example, mechanical or electrical, or both. The internal communication of the components may be directly connected or indirectly connected through an intermediate medium. For those skilled in the art, the specific meanings of the above terms may be understood according to specific circumstances.

As shown in FIG. 1 to FIG. 6 , the present invention provides a hinge assembly 100 for connecting between a door body 10 and a box body 20 . In this embodiment, as shown in FIG. 1 , the hinge assembly is as shown in FIG. 1 . 100 is used to connect the door body 10 of the refrigerator and the cabinet 20. In order to achieve greater space utilization, in modern homes, the refrigerator is often embedded in the design, or the refrigerator is placed against the wall, cabinet, etc. In the above case, in the existing refrigerator, since the door body is thick and rotates around an axis during the door opening process, the refrigerator door easily touches the obstacle of the refrigerator case 20 during the rotation process, and thus is used. Very inconvenient. Therefore, the hinge assembly 100 in the present invention can cause the door body 10 to move in accordance with a preset trajectory during opening or closing so that the door body 10 does not touch an obstacle. In the present embodiment, the side of the case 20 near the hinge assembly 100 is referred to as a side surface. For the convenience of description, the extended surface of the side surface is referred to as an obstacle, and the door body 10 cannot be touched during the opening and closing process. When the obstacle is encountered, that is, during the opening and closing of the door body 10, the door body 10 cannot touch the extended surface of the side surface.

The preset trajectory described above includes a first stage in which the door body 10 moves toward or away from the hinge assembly 100 during rotation, and a second stage in which the door body 10 only rotates. Specifically, during the opening process of the door body 10, the first stage of rotating the door body 10 and moving away from the hinge assembly 100 is performed, and then the second stage of the door body 10 is only rotated; when the door body 10 is closed In the process, the second stage in which the door body 10 is rotated is first performed, and then the first stage in which the door body 10 rotates and moves toward the hinge assembly 100 is performed. During the opening and closing of the door body 10, the movement of the hinge assembly 100 is completely opposite.

Specifically, as shown in FIG. 2, FIG. 3 and FIG. 5, the hinge assembly 100 includes:

The hinge bracket 1 is fixed to the casing 20 and includes guiding walls 11 and guiding grooves 12 spaced apart from each other;

a transmission assembly that cooperates with the hinge bracket 1 to drive the door body 10 to move along a predetermined trajectory. The transmission assembly includes:

a hinge shaft 2, the door body 10 is rotatable about the hinge shaft 2, in the embodiment, the door body 10 is pivotally connected with the hinge shaft 2;

a drive shaft 3, the lower end of the drive shaft 3 can be raised and lowered and fixed to the door body 10, and the door body 10 can drive the transmission shaft 3 to move during movement;

The transmission member 4 is connected to the hinge shaft 2, and in the first stage of opening the door, the transmission shaft 3 and the transmission member 4 are mutually positioned, as shown in FIG. 4, the transmission member 4 is provided with a seat a limiting shaft 41 that cooperates with the guiding groove 12 and a guiding portion 42 that cooperates with the guiding wall 11 . In the embodiment, the guiding portion 42 and the transmission member are used to reduce friction. 4 pivotal connection; the guiding groove 12 has an initial end and an end, and in the case that the door body 10 is closed, the limiting shaft 41 is at the initial end.

In the first stage in which the door body 10 is opened, the door body 10 is rotated about the hinge shaft 2, and the drive shaft 3 is displaced from the hinge shaft 2, so that the door body 10 rotates around the hinge shaft 2, the drive shaft 3 also occurs; since the transmission shaft 3 and the transmission member 4 are positioned relative to each other, the transmission shaft 3 also moves in the horizontal direction with the transmission member 4 when moving, and the re-guide portion 42 and the guide wall 11 are further With the cooperation, the limiting shaft 41 moves in the guiding groove 12; and since the transmission member 4 is connected with the hinge shaft 2, so that the transmission member 4 moves, the hinge shaft 2 is also horizontally The movement moves to move the door body 10 away from the hinge bracket 1; and during the movement, the bottom end of the transmission shaft 3 moves upward and gradually disengages from the transmission member 4.

After the drive shaft 3 is disengaged from the transmission member 4, the door body 10 enters the second stage of the opening process, and the limit shaft 41 moves to the end of the guide groove 12 and cannot move further along the guide groove 12, the hinge shaft 2 Remaining relative to the casing 20; the transmission shaft 3 is completely disengaged from the transmission member 4, and the transmission member 4 is also stationary with respect to the casing 20, and in the second stage, the door body 10 and the transmission shaft 3 rotates around the hinge shaft 2 until the door body 10 is fully opened. In the present embodiment, "fully open" means that the door body 10 is opened to be perpendicular to when the door body 10 is closed.

In addition, the door body 10 is completely opposite to the above process in the process of closing the door, first passes through the second stage, and then passes through the first stage, and details are not described in detail.

In addition, in the present embodiment, the hinge shaft 2 is disposed on a side of the transmission shaft 3 away from the casing 20 so as to drive the transmission shaft 3 to rotate when the door body 10 rotates around the hinge shaft 2. And the limiting shaft 41 is disposed between the hinge shaft 2 and the transmission shaft 3, so that the moving path of the transmission member 4 can be reduced, and the technical effect of the present invention can also be achieved.

In the present embodiment, as shown in FIG. 4 to FIG. 6 , the hinge bracket 1 is formed with a boss 13 protruding upward, and the boss 13 includes an inclined surface 131 extending obliquely upward, and the transmission shaft 3 is at the In one stage, the inclined surface 131 can be gradually raised upwards under the abutment of the inclined surface 131. Thereby, the bottom end of the transmission shaft 3 can be gradually moved upward. Specifically, the inclined surface 131 of the boss 13 is disposed on the moving path of the transmission shaft 3 in the first stage, and the highest point of the inclined surface 131 is flush with the transmission member 4, thereby When the bottom end of the transmission shaft 3 reaches the highest point of the inclined surface 131, the transmission shaft 3 is just flush with the transmission member 4.

Of course, if the transmission shaft 3 is moved upward in other manners, such as a plurality of structures disposed in the door body 10, the transmission shaft 3 can be moved upward during the rotation of the door to achieve the object of the present invention.

The boss 13 further includes a sliding surface 132 extending from the highest point of the inclined surface 131. The sliding surface 132 is horizontal. In the second stage, the sliding surface 132 abuts the transmission shaft 3 and causes the transmission shaft 3 to Slide on the sliding surface 132. And, in the second stage, since the transmission member 4 and the transmission shaft 3 are separated from each other, the transmission member 4 is stationary with respect to the casing 20, and the door body 10 drives the transmission shaft 3 at the The sliding surface 132 slides until the door body 10 is fully opened.

Specifically, as shown in FIG. 4, the hinge bracket 1 includes a hinge plate 14 and a fixing plate 15 perpendicular to the hinge plate 14, and the fixing plate 15 is fixed to the casing 20, and the guiding wall 11 is The guiding groove 12 and the boss 13 are all disposed on the hinge plate 14. Specifically, the hinge plate 14 is directly formed with a first plate 141 and a second plate 142 which are parallel to each other, and the first plate 141 is connected to the fixing plate 15, and the first plate 141 and the second plate 142 are connected. Some of them overlap each other. As shown in FIG. 2 and FIG. 3, the guiding wall 11 is formed between the first plate 141 and the second plate 142, and the guiding wall 11 is perpendicular to the first plate 141 and the second plate 142. . The guiding groove 12 and the boss 13 are both disposed on the second plate 142 , and the guiding groove 12 is formed through the second plate 142 .

The guide groove 12 extends obliquely to the side of the fixing plate 15 that opens toward the door, so that the hinge shaft 2 can be moved toward the side away from the obstacle with respect to the hinge plate 14. In the present embodiment, the guide wall 11 also extends obliquely to the side of the fixed plate 15 that opens toward the door, and the guide wall 11 and the guide groove 12 do not extend parallel to each other and extend away from each other. Of course, if the guiding wall 11 extends in other directions and extends at other angles, such as parallel to the fixing plate 15, the object of the present invention can be achieved as long as the above technical effects can be achieved.

As shown in FIG. 4, the hinge bracket 1 is further formed with a positioning groove 16, and the transmission shaft 3 and the positioning groove 16 are mutually positioned to drive the transmission member 4 in the horizontal direction when the transmission shaft 3 moves. mobile. Specifically, in the present embodiment, the positioning groove 16 is formed through the through hole and has an opening shape, and is engaged with the transmission shaft 3 . Of course, if the positioning groove 16 is in the shape of a hole, the object of the present invention can also be achieved.

As shown in FIG. 2 and FIG. 3, the hinge assembly 100 further includes a connecting plate 5, the connecting plate 5 is disposed on an upper side of the transmission member 4, and the transmission shaft 3 and the hinge shaft 2 are penetrated through the same. The connecting plate 5 is provided. The connecting plate 5 is used for connecting the transmission shaft 3 and the hinge shaft 2 to maintain the relative distance between the transmission shaft 3 and the hinge shaft 2. In the second stage, the position of the transmission shaft 3 is performed. Precise limit.

As shown in FIG. 4 to FIG. 6, the hinge assembly 100 further includes a guide block 6 pivotally connected to the limiting shaft 41. The guide block 6 is adapted to the guiding slot 12 and can be guided. The groove 12 slides. Specifically, the guide block 6 is adapted to the guide groove 12 and can slide in the guide groove 12. As shown in FIG. 6, the guide block 6 is elliptical, and the guide block 6 slides in the guide groove 12 to achieve a better guiding effect, so that the transmission member 4 can move along a certain track.

As shown in FIG. 6, the transmission shaft 3 includes a shaft body 31, an elastic member 32 disposed on the shaft body 31, and a resisting block 33 abutting against the elastic member 32. The shaft body 31 extends through the shaft Resisting block 33. In the first stage, the abutting block 33 abuts against the elastic member 32 and causes the elastic member 32 to be compressed and deformed. Specifically, the elastic member 32 is a spring, and the spring is sleeved on the outer side of the shaft body 31. The upper end of the shaft body 31 is fixed on the door body 10, the lower end is suspended, and the lower end of the shaft body 31 must be high. In the transmission member 4. Therefore, the resisting block 33 is sleeved on the outer side of the shaft body 31 and abuts against the lower side of the elastic member 32. Thereby, in the first stage in which the door body 10 is opened, the resisting block 33 slides on the inclined surface 131 of the boss 13, the resisting block 33 moves upward and gradually compresses the spring, so that the resisting The lower end of the block 33 is gradually lifted upward and gradually separated from the transmission member 4. In the second phase of opening of the door body 10, the abutment block 33 slides over the sliding surface 132 of the boss 13, the spring being always in a compressed state. In the first stage in which the door body 10 is closed, the spring pushes the abutting block 33 downward along the sliding surface 132 of the boss 13. The elastic member 32 and the abutting block 33 further increase the stability of the hinge assembly 100.

In summary, the present invention provides the hinge assembly 100, and the limiting shaft 41 and the guiding portion 42 of the transmission member 4 are respectively moved along the guiding slot 12 and the guiding wall 11, thereby driving the hinge shaft 2 to move. The hinge shaft 2 drives the door body 10 to move away from the hinge assembly 100. Thus, in the first stage of opening of the door body 10, the door body 10 is moved away from the hinge assembly 100 while rotating, so that in the second stage, the door body 10 does not touch the obstacle when it continues to rotate.

It is to be understood that the description is not to be construed as limited to The technical solutions in the embodiments may also be combined as appropriate to form other embodiments that can be understood by those skilled in the art.

The series of detailed descriptions set forth above are merely illustrative of specific embodiments of the present invention, and are not intended to limit the scope of the present invention. All should be included in the scope of protection of the present invention.

Claims

A hinge assembly for connecting between a door body and a box body, such that the door body moves according to a preset trajectory when opening or closing, the preset trajectory including the door body during the rotation process a second stage of rotating only the first stage and the door body moving away from or near the hinge assembly;

The hinge assembly includes:

a hinge bracket fixed to the box body and including guiding walls and guiding grooves spaced apart from each other;

a transmission assembly that cooperates with the hinge bracket to move the door body along a predetermined trajectory, and the transmission assembly includes:

Hinge shaft

a drive shaft, the lower end of the drive shaft can be raised and lowered and fixed to the door body;

a transmission member connected to the hinge shaft and positioned relative to the transmission shaft in a first stage of opening the door, the transmission member being provided with a limiting shaft and a guide shaft matched with the guiding groove a guiding portion that matches the wall;

In the first stage of the door opening process, the door body rotates around the hinge axis, and the transmission member is driven to move by the transmission shaft, thereby the limiting shaft is coordinated by the guiding portion and the guiding wall. Moving in the guiding groove, and then moving the door body to move away from the hinge bracket by the hinge shaft, and the bottom end of the transmission shaft moves upward and gradually disengages from the transmission member during the movement;

After the transmission shaft is disengaged from the transmission member, the door body enters a second stage of the opening process, the limiting shaft moves to the end of the guiding groove, and the door body rotates with the transmission shaft around the hinge shaft to the door The body is completely open.
The door hinge assembly according to claim 1, wherein the hinge bracket is upwardly formed with a boss, and the boss includes an inclined surface extending obliquely upward, and the transmission shaft is in the first stage. Gradually rising upward under the abutment of the inclined surface; the boss further includes a sliding surface extending from a highest point of the inclined surface, the sliding surface is horizontal, and in the second stage, the sliding surface resists the The drive shaft causes the drive shaft to slide on the sliding surface.
The door hinge assembly according to claim 2, wherein the highest point of the inclined surface is flush with the transmission member.
The door hinge assembly according to claim 1, wherein the hinge bracket comprises a hinge plate and a fixing plate perpendicular to the hinge plate, the fixing plate being fixed to the casing, the guiding wall The guiding groove and the boss are all disposed on the hinge plate; the guiding groove extends obliquely to a side where the fixing plate is inclined to open the door.
The door hinge assembly according to claim 1, wherein the hinge shaft is disposed on a side of the drive shaft away from the case.
The door hinge assembly according to claim 1, wherein the transmission member is formed with a positioning groove that cooperates with the transmission shaft to move the transmission member in a horizontal direction when the transmission shaft moves. .
The door hinge assembly according to claim 1, wherein the hinge assembly further comprises a connecting plate, the connecting plate is disposed on an upper side of the transmission member, and the transmission shaft and the hinge shaft are penetrated The connecting plate is arranged.
The door hinge assembly according to claim 1, wherein the limiting shaft is disposed between the transmission shaft and the hinge shaft.
The door hinge assembly according to claim 1, wherein the transmission shaft comprises a shaft body, an elastic member disposed on the shaft body, and a resisting block that abuts against the elastic member, the shaft body penetrating the shaft In the first stage, the resisting block abuts against the elastic member and causes the elastic member to compress and deform.
A refrigerator, comprising: a box body and a door body that is opened and closed on the box body, the refrigerator further comprising the hinge assembly according to any one of claims 1 to 9.