WO2012100446A1

WO2012100446A1 - Embedded refrigerator door hinge

Info

Publication number: WO2012100446A1
Application number: PCT/CN2011/071257
Authority: WO
Inventors: 常见虎; 毛庆成; 游飞越
Original assignee: 海信容声(广东)冰箱有限公司
Priority date: 2011-01-25
Filing date: 2011-02-24
Publication date: 2012-08-02
Also published as: CN102062510B; DE112011100055T5; CN102062510A; DE112011100055B4

Abstract

An embedded refrigerator door hinge comprises an inner fixing plate (1), an outer fixing plate (2), an inner oscillating bar (3) and an outer oscillating bar (4) both connected with the inner fixing plate (1) and the outer fixing plate (2). The inner oscillating bar (3) is connected with the inner fixing plate (1) by the first inner oscillating bar shaft (6) and is connected with the outer fixing plate (2) by the second inner oscillating bar shaft (7). The outer oscillating bar (4) is connected with the inner fixing plate (1) by the first outer oscillating bar shaft (8) and is connected with the outer fixing plate (2) by the second outer oscillating bar shaft (9). The inner fixing plate (1) is connected with the inner oscillating bar (3) by an extension spring (5). An end of the extension spring (5) is fixed on the inner fixing plate (1), and the other end of the extension spring (5) is fixed on the inner oscillating bar (3). As the complete use of mechanical control method and no use of any electronic control technology, the production cost is reduced.

Description

Embedded refrigerator door hinge

Technical field

The utility model relates to the technical field of refrigerators for household appliances, in particular to an embedded refrigerator door hinge.

Background technique

With the continuous improvement of the economic income of the Chinese people and the influence of Western living habits, no matter whether it is a family or a hotel, people are no longer satisfied with directly exposing household refrigerators or other electrical appliances to the public's vision. The home appliance product is placed in a certain box body, and the door body of the home appliance product is fixed with the door body of the box body, and the door body of the home appliance product is directly driven to open by opening the door body of the box body. Putting the home appliance in the box, it seems that the interior is simple, fresh and bright, and easy to clean up. Due to the above advantages, the embedded home appliance becomes a fashion and trend, and the 'embedded door hinge' is just to adapt and lead this. A connection device for embedded home appliances developed by a consumer trend .

Utility model content

The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art. Provides an embedded door hinge that completely uses mechanical control to reduce production costs.

In order to solve the above technical problems, the technical solution of the present invention is:

An embedded refrigerator door hinge comprises an inner fixing plate, an outer fixing plate, and an inner swing rod and an outer swing rod connecting the inner fixing plate and the outer fixing plate, wherein the inner swing rod passes through the first inner swing rod shaft and the inner fixed plate The connection is connected to the external fixing plate through the second inner swing shaft; the outer swing rod is connected to the inner fixed plate through the first outer swing shaft The second outer swing shaft is connected to the outer fixed plate; the inner fixed plate and the inner swing rod are connected by a tension spring, one end of the tension spring is fixed on the inner fixed plate, and the other end is fixed in the inner pendulum Rod On.

Tension spring One end is fixed to the first spring sheath, and the other end is fixed to the second spring sheath. The first spring sheath is fixed to the inner fixing plate, and the second spring sheath is fixed to the inner swing rod.

The inner fixing plate has a U-shaped thin shell shape, and has a strip-shaped groove and a hole-shaped groove at the top thereof, and three through holes are respectively formed on the two sides thereof, and the first spring sheath is installed in one of the through holes, first The inner swing shaft is fixed in the second through hole, first The outer swing rod shaft is fixed in the third through hole; the outer fixed plate is stamped into a thin shell shape of a U-shaped and an L-shaped combination, and two through holes are respectively formed on two sides of the U-shaped portion, and the second inner pendulum The shaft is fixed in a through hole, the second The outer swing shaft is fixed in the other through hole; One end of the inner swing rod rotates around the first inner swing rod shaft fixed to the through hole of the inner fixed plate, and the other end rotates around the second inner swing rod shaft fixed to the through hole of the outer fixed plate, and the outer swing rod is fixed at one end The first outer swing shaft of the through hole of the fixed plate rotates, and the other end rotates around the second outer swing shaft fixed to the through hole of the outer fixed plate.

The inner swing rod has a U-shaped fork shape, one end is fork-shaped, and the inner swing rod has a boss. The entire inner swing rod has three through holes, one of which is located on the boss, and the first inner swing rod The shaft is assembled with the first through hole, the second inner swing shaft is assembled with the second through hole, and the second spring sheath is assembled with the third through hole.

The outer swing rod has a shape of a 'convex' shape, and the convex portion is long, and the thickness thereof is smaller than the width of the U-shaped groove of the inner swing rod so as to be able to pass through the U-shaped groove of the inner swing rod, and the outer swing rod is respectively provided at two ends Two through holes for the first outer swing shaft and the second outer swing shaft are mounted.

The end faces on both sides of the outer swing bar are circular arc faces or inclined faces, and when the end faces on both sides of the outer swing bar are inclined faces, the end faces and the outer swing bars The angle of the axis line is 18°~25°.

A groove is formed between the first spring sheath and the second spring sheath, the groove width is less than 3 mm, and the groove depth is less than 1 mm.

The beneficial effects of the utility model over the prior art are:

The utility model utilizes two pendulum rods to connect the inner and outer fixing plates to generate a connecting machine, and the tension spring generates a certain pre-tightening force when the door body is closed, and generates a self-locking force when the door body is opened, thus avoiding the application. Excessive concentration of stress in the mechanism, thereby avoiding premature fatigue fracture of the door hinge. Since the utility model completely adopts the mechanical control mode, the control technology of any electronic product is not adopted, and the production cost of the product is reduced.

DRAWINGS

The present invention will be further described in detail below in conjunction with the drawings and specific embodiments.

Figure 1 is a schematic view showing the closed state of the refrigerator door hinge of the present invention;

2 is a schematic view showing the open state of the door hinge of the refrigerator of the present invention;

Figure 3 is an exploded view of the refrigerator door hinge of the present invention;

Figure 4 is a working principle diagram of the door hinge of the refrigerator of the present invention;

Figure 5 is a schematic view of the swinging rod structure of the refrigerator door hinge of the present invention;

Figure 6 is a schematic view 2 of the swinging rod of the refrigerator door hinge of the present invention;

Figure 7 is a schematic view 1 of the outer door swinging rod of the refrigerator door hinge of the present invention;

Figure 8 is a schematic view of the structure of the A-type outer swing rod of the refrigerator door hinge according to the present invention 2

Figure 9 is a schematic view 1 of the B-type outer swing rod of the refrigerator door hinge of the present invention;

FIG. 10 is a schematic structural view 2 of a B-type outer swing rod of a refrigerator door hinge according to the present invention.

detailed description

As shown in FIG. 1 to FIG. 3, the embedded refrigerator door hinge of the utility model comprises an inner fixing plate 1 , an outer fixing plate 2 , and an inner fixing plate. 1 and the inner swing rod 3 and the outer swing rod 4 of the outer fixed plate 2, the inner fixed plate 1 is mounted on the refrigerator box wall, the refrigerator door is fixed on the outer fixed plate 2, and the inner swing rod 3 and the outer swing rod 4 are used for realizing The main movement of the mechanism, the inner swing rod 3 The first inner swing shaft 6 is connected to the inner fixed plate 1 and the second inner swing shaft 7 is connected to the outer fixed plate 2; the outer swing rod 4 is passed through the first outer swing shaft 8 and the inner fixed plate 1 Connected to the outer fixing plate 2 through the second outer swing shaft 9; the inner fixing plate 1 and the inner swing rod 3 are connected by a tension spring 5, and one end of the tension spring 5 is fixed to the inner fixing plate On the 1st, the other end is fixed to the inner swing rod 3.

Tension spring 5 One end is fixed to the first spring sheath 10, and the other end is fixed to the second spring sheath 11. The first spring sheath 10 is fixed to the inner fixing plate 1, and the second spring sheath 11 is fixed to the inner swing rod 3. A groove is formed between the first spring sheath 10 and the second spring sheath 11 with a groove width of less than 3 mm and a groove depth of less than 1 mm. It has a preload force of 5-15N in the closed state of the door body, and provides a certain stability to maintain the door opening state at the maximum door opening angle, and the stabilizing force is about 18-28N. The springs fixed to the first spring sheath 10 and the second spring sheath 11 have a tensile force of between 90 and 150 N at the minimum stroke.

The embedded refrigerator door hinge of the utility model can realize the stable door opening state after the door body opens a certain angle and the stable door closing state after the door body is closed. The two states have a certain stability margin and require a certain door opening force and door closing force. Make it change state. When the door is closed, because the inner swing rod 3 is in the tension spring 5 Under the action of pulling force, the outer fixing plate 2 is pulled tightly toward the box body, and a certain pre-tightening force is maintained to ensure the stability of the door body closing; when the door body is opened, the tension spring 5 The pulling force is getting larger and larger. When the door body is opened to a certain angle, the end surface 23 of the inner swing rod 3 and the end surface of the outer swing rod 4 are 44 Tangent, causing the inner and outer pendulum rods to contact each other and generating self-locking, so that the door body is fixed at a certain opening angle, and the maximum opening angle is within 100°, as shown in Fig. 5.

The inner fixing plate 1 is a U-shaped thin shell shape with a center line symmetrically punched, and has a strip-shaped groove and a hole-shaped groove at the top thereof, and three through

holes

12, 13, and 14 are respectively formed on the two sides thereof, and the first spring sheath 10 is provided. Installed in one of the through holes 12, The first inner swing shaft 6 is fixed in the second through hole 13, and the first outer swing shaft 8 is fixed in the third through hole 14; The distance between the center line of the through hole 12 and the bottom surface 20 of the inner fixing plate 3 is less than 10 mm. The distance between the through hole 10 in which the spring sheath 10 is mounted and the through hole 13 in which the first inner swing shaft 6 is mounted is less than 20 mm.

The outer fixing plate 2 is stamped into a thin shell shape of a U-shaped and L-shaped combination, and two through

holes

15, 16 are respectively formed on both sides of the U-shaped portion, and the linear distance between the center lines of the through

holes

15, 16 is less than 20 mm. Second inner swing shaft 7 The second outer swing shaft 9 is fixed in the through hole 15, and the inner swing rod 3 is wound around the first inner swing shaft 6 of the through hole 13 fixed to the inner fixed plate. Rotating, the other end is wound around the through hole 15 of the outer fixing plate 2 The second inner swing shaft 7 rotates, and one end of the outer swing rod 4 rotates around the first outer swing rod shaft 8 fixed to the through hole 14 of the inner fixed plate, and the other end is wound around the through hole 16 fixed to the outer fixed plate 2. The outer swing shaft 9 rotates.

4 is a working principle diagram of the door hinge of the refrigerator of the present invention, wherein AC is an inner swing rod 3, DC is an outer fixed plate 2, and BD is an outer swing rod 4 , EF is the tension spring 5, the tension spring 5 always generates the tensile force, and the inner swing rod 3 always produces the clockwise moment, so when the inner swing rod 3 does not pass the outer swing rod 4 Before the dead point is closed, the refrigerator door is closed. When the C point passes through the outer swing rod 4, the clockwise moment of the inner swing rod 3 forces the outer fixed plate 2 to generate a two-force effect, which forces the outer force effect. Pendulum 4 When the clockwise rotation is performed, the outer fixing plate 2 also rotates clockwise, that is, the refrigerator door is unfolded, and since the outer swing lever 4 has a higher angular velocity than the inner swing rod 3, the outer swing rod 4 is at the inner swing rod 3 The barrier is finally stable and self-locking.

Figure 5 and Figure 6, The inner swing rod 3 has a U-shaped fork shape, one end has a fork shape, and the inner swing rod 3 has a boss 24 thereon. The entire inner swing rod 3 has three through

holes

17, 18 and 21, wherein the through hole 17 is located at the boss. twenty four Upper, the first inner swing shaft 6 is assembled with the first through hole 17, the second inner swing shaft 7 is assembled with the second through hole 18, and the second spring sheath 11 is assembled with the third through hole 21.

Figure 7 to Figure 10, The outer swing rod 4 has a 'convex' shape, the convex portion is long, and the thickness thereof is smaller than the U-shaped groove width of the inner swing rod 3 so as to be able to pass through the U-shaped groove of the inner swing rod 3, and the outer swing rod 4 has two ends respectively Two through

holes

19, 22 for mounting the first outer swing shaft 8 and the second outer swing shaft 9 are provided.

Fig. 7 and Fig. 8 show the structure of an outer swing rod, and the end faces 4 4 on both sides of the outer swing rod 4 are circular arc surfaces.

Fig. 9 and Fig. 10 show the structure of another outer swing rod, and the end faces 4 4 on both sides of the outer swing rod 4 are inclined surfaces, and the outer swing rod 4 The angle of the axis line is 18°~25°.

Claims

An embedded refrigerator door hinge, comprising: an inner fixing plate (1), an outer fixing plate (2), and an inner fixing plate (1) and an outer fixing plate (2) The inner swing rod (3) and the outer swing rod (4), the inner swing rod (3) is connected to the inner fixed plate (1) through the first inner swing shaft (6), and passes through the second inner swing shaft (7) ) with external fixing plate (2) The outer swing rod (4) is connected to the inner fixed plate (1) through the first outer swing shaft (8), and is connected to the outer fixed plate (2) through the second outer swing shaft (9); Inner fixing plate (1) and inner pendulum (3) Connected by a tension spring (5), one end of the tension spring (5) is fixed to the inner fixing plate (1), and the other end is fixed to the inner swing rod (3).
The embedded refrigerator door hinge according to claim 1, wherein said tension spring (5) One end is fixed on the first spring sheath (10), the other end is fixed on the second spring sheath (11), the first spring sheath (10) is fixed on the inner fixing plate (1), and the second spring sheath (11) is fixed. Inner pendulum (3) Upper.
The embedded refrigerator door hinge according to claim 2 The inner fixing plate (1) is a U-shaped thin shell shape, and has a strip-shaped groove and a hole-shaped groove at the top thereof, and three through holes (12, 13, 14) are respectively formed on the two sides thereof, A spring sheath (10) is mounted in one of the through holes ( 12), the first inner swing shaft (6) is fixed in the second through hole (13), and the first outer swing shaft (8) is fixed in the third through hole (14); The outer fixing plate (2) is stamped into a thin shell shape of a U-shaped and L-shaped combination, and two through holes (15, 16) are respectively opened on two sides of the U-shaped portion, and the second inner swing shaft (7) Fixed in a through hole (15), second The outer swing shaft (9) is fixed in the other through hole (16).
The embedded refrigerator door hinge according to claim 3 The utility model is characterized in that: the inner swing rod (3) has a U-shaped fork shape, one end is fork-shaped, the inner swing rod (3) has a boss (24), and the whole inner swing rod (3) has three through holes. (17, 18, 21), one of the through holes (17) is located at the boss (24) The first inner swing shaft (6) is assembled with the first through hole (17), the second inner swing shaft (7) is assembled with the second through hole (18), and the second spring sheath is assembled. (11) with the third through hole (21 ) Assembly.
The embedded refrigerator door hinge according to claim 4 The utility model is characterized in that: the outer swing rod (4) is in the shape of a 'convex' shape, the convex portion is long, and the thickness thereof is smaller than the U-shaped groove width of the inner swing rod (3), and the outer swing rods (4) are respectively provided at two ends. There are two through holes (19, 22) for mounting the first outer swing shaft (8) and the second outer swing shaft (9).
The embedded refrigerator door hinge according to claim 4, wherein the end faces (4 4) on both sides of the outer swing rod (4) are circular arc surfaces. .
The embedded refrigerator door hinge according to claim 4, wherein the end faces (4 4) on both sides of the outer swing rod (4) are inclined surfaces. .
The embedded refrigerator door hinge according to claim 7, characterized in that: the end surface (4 4) and the axis of the outer swing rod (4) The angle is 18 ° ~ 25 °.
A built-in refrigerator door hinge according to any one of claims 2 to 8 The utility model is characterized in that: a groove is arranged between the first spring sheath (10) and the second spring sheath (11), the groove width is less than 3 mm, and the groove depth is less than 1 mm.