CN111075297B

CN111075297B - Refrigerator hinge assembly

Info

Publication number: CN111075297B
Application number: CN201811227448.1A
Authority: CN
Inventors: 潘自杰; 丁剑波; 刘瑾; 李建新; 盛遵丰
Original assignee: Qingdao Haier Special Refrigerator Co Ltd
Current assignee: Qingdao Haier Special Refrigerator Co Ltd
Priority date: 2018-10-22
Filing date: 2018-10-22
Publication date: 2023-04-11
Anticipated expiration: 2038-10-22
Also published as: CN111075297A

Abstract

The invention relates to a hinge assembly which is used for a refrigerator, wherein a box body and a door body of the refrigerator are movably connected through a rotating shaft; the hinge assembly comprises a first assembly matched with the box body, a second assembly matched with the door body and a torsion spring movably sleeved on the rotating shaft; the first assembly includes a wobble groove; the second assembly comprises a limiting part fixedly arranged on the door body and a swinging shaft; the torsional spring includes stiff end and free end, and the stiff end is spacing in the box, and when the door body and box were in the closure state, the torsional spring was in compression state and the spacing portion of free end butt, and when the relative box of the door body was in the opening in-process, the oscillating axle was in the motion of swing inslot, and the torsional spring resets and the application of force in spacing portion. The refrigerator hinge assembly provided by the invention has the advantages of assisting in opening the door, buffering in closing the door, avoiding impact abnormal sound, realizing hovering of the door body, being simple in structural design, convenient to install and operate and high in universality.

Description

Refrigerator hinge assembly

Technical Field

The invention relates to the field of refrigeration, in particular to a refrigerator hinge assembly.

Background

When the door of the refrigerator is closed, the door body is easy to impact the refrigerator body and generate abnormal sound, and when the door is opened, the self gravity of the door body is more laborious. At present, the hinge of partial freezer has increased the attenuator, can realize closing the door buffering, nevertheless still does not have the effect of helping hand when the door body is opened.

Because the door body of the refrigerator is a component which is frequently operated, the convenience and the comfort degree of the refrigerator operation can be directly influenced by the function of the hinge. Therefore, there is a need for a hinge assembly that provides an assisting effect when opening a door of a refrigerator to facilitate easy opening of the door, and that provides a door closing buffer to avoid abnormal impact when closing the door.

Disclosure of Invention

The invention aims to solve the problems of the refrigerator, and provides a hinge assembly which has the advantages of door opening assisting effect, door closing buffering, impact abnormal sound avoiding, hovering of a door body, low manufacturing cost, strong universality and convenience in installation and operation.

In order to achieve the purpose, the invention adopts the following technical scheme.

The hinge assembly comprises a first assembly matched with the refrigerator body, a second assembly matched with the door body and a torsion spring movably sleeved on the rotating shaft, wherein the first assembly comprises a swinging groove, the second assembly comprises a limiting part fixedly arranged on the door body and a swinging shaft, the torsion spring comprises a fixed end and a free end, the fixed end is limited on the refrigerator body, when the door body and the refrigerator body are in a closed state, the torsion spring is in a compressed state, the free end abuts against the limiting part, when the door body is opened relative to the refrigerator body, the swinging shaft moves in the swinging groove, and the torsion spring resets to apply force to the limiting part.

Further, the swinging groove is an arc-shaped groove, and the diameters of the arc-shaped groove and the swinging shaft are matched with each other to limit the movement path of the swinging shaft.

Further, the radius of the arc-shaped groove is equal to the distance between the swing shaft and the rotating shaft.

Further, the first subassembly is still including the intercommunication the groove of stepping down of swing groove, the stiff end spacing in the groove of stepping down.

Further, the receding groove is located in the middle of the swinging groove.

Further, the hinge assembly further includes a driving part connected to the swing shaft, the driving part being provided at the box body.

Further, the driving portion comprises a guide rod connected with the swinging shaft and an elastic piece connected with the guide rod, when the door body and the box body are in a closed state, the swinging shaft is located at the first end of the swinging groove, the elastic piece is in a compressed state, when the door body is in an opening process relative to the box body, the swinging shaft moves from the first end of the swinging groove to the second end, and the elastic piece resets to enable the swinging shaft to be in contact with the swinging groove all the time through the force applied to the swinging shaft by the guide rod.

Furthermore, the first component comprises two swing grooves which are symmetrically arranged, and two ends of the swing shaft are respectively limited in the two swing grooves.

Further, the torsion spring comprises two fixed ends which are symmetrically arranged, and the free end is located between the two fixed ends.

In order to achieve the above object, the present invention also provides a refrigerator comprising a hinge assembly as described above.

Due to the application of the technical scheme, the invention has the following beneficial effects: according to the hinge assembly provided by the embodiment of the invention, the torsional spring is stressed to compress and buffer to close the door when the door body is closed, so that impact abnormal sound is avoided, and meanwhile, a power assisting force is provided when the door body is opened to realize easy opening of the door; the drive division in the hinge resets at the door opening in-process, provides the supplementary laborsaving that opens the door of thrust messenger, and the drive division still provides the holding power balanced mutually with door body self gravity simultaneously to the effect that the realization door body was stably hovered. Compared with the prior art, the refrigerator hinge assembly has the beneficial effects of assisting in opening the door, buffering in closing the door, avoiding impacting abnormal sound, realizing hovering of the door body, being simple in structural design, convenient to install and operate and high in universality.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application; wherein:

FIG. 1 is a schematic structural view of a hinge assembly when a door body is in a closed state;

FIG. 2 is a schematic view of a shape of a relief groove;

FIG. 3 is a schematic view of a torsion spring;

FIG. 4 is a side view of the driving portion;

FIG. 5 is a schematic view of a first configuration of a hinge assembly during opening of the door body;

FIG. 6 is a second structural schematic view of the hinge assembly during opening of the door body;

FIG. 7 is a schematic structural view of the hinge assembly when the door body is in an open state;

in the figure: 1. a first component; 101. a swing groove; 102. a yielding groove; 2. a second component; 201. a swing shaft; 202. a limiting part; 3. a rotating shaft; 4. a torsion spring; 401. a free end; 402. a fixed end; 5. a drive section; 501. a guide bar; 502. an elastic member.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more clear, the technical solutions of the present application will be clearly and completely described below with reference to the detailed description of the present application and the accompanying drawings. It should be apparent that the described embodiments are only some embodiments of the present application, and not all embodiments. All other embodiments obtained by a person of ordinary skill in the art without any inventive work based on the embodiments in the present application are within the scope of protection of the present application.

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention and are not to be construed as limiting the present invention.

For convenience in explanation, the description herein uses terms indicating relative spatial positions, such as "upper," "above," "lower," "below," and the like, to describe one element or feature's relationship to another element or feature as illustrated in the figures. The term spatially relative position may encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" the other elements or features. Thus, the exemplary term "below" can encompass both an orientation of above and below. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly. As in the present invention, for convenience of description, in normal use of the refrigerator, the direction toward the ground is downward, the direction away from the ground is upward, and the direction parallel to the ground is horizontal.

As shown in fig. 1 to 4, an embodiment of the present invention provides a hinge assembly for a refrigerator, where the refrigerator includes a box body and a door body that are matched with each other, and the box body and the door body are movably connected with each other through a rotating shaft 3, and the hinge assembly includes a first assembly 1 matched with the box body, a second assembly 2 matched with the door body, and a torsion spring 4 movably sleeved on the rotating shaft 3. In practical use, first subassembly 1 and box fixed connection, second subassembly 2 and door body fixed connection, it is visible, based on axis of rotation 3, second subassembly 2 can rotate for first subassembly 1, and the door body can rotate for the box promptly to realize opening the door or closing the door of freezer.

The first assembly 1 comprises a swing groove 101, and the second assembly 2 comprises a limiting part 202 fixedly arranged on the door body and a swing shaft 201; as shown in fig. 3, the torsion spring 4 includes a free end 401 and a fixed end 402; as shown in fig. 1, the fixed end 402 is limited to the box, and when the door body and the box are in a closed state, the torsion spring 4 is in a compressed state and the free end 401 abuts against the limiting portion 202; as shown in fig. 5 to 7, when the door body is in an opening process relative to the box body, the swing shaft 201 moves in the swing groove 101, and the torsion spring 4 is reset to apply a force to the limiting portion 202.

Preferably, the first assembly 1 includes two swing grooves 101 symmetrically disposed, and two ends of the swing shaft 201 are respectively limited in the two swing grooves 101. Optionally, the portion of the second component 2 that is in contact with the first component 1 is located inside the first component 1.

Preferably, the torsion spring 4 comprises two fixed ends 402 symmetrically arranged, and the free end 401 is located between the two fixed ends 402.

In actual use, the two swing grooves 101 are located at the upper end of the first assembly 1 and are symmetrical to each other. Since the swing shaft 201 can move only in the swing groove 101, the opening angle of the door body can be limited. When the door body and the box body are close to a closed state, the limiting part 202 extrudes the free end 401, the torsion spring 4 is twisted under force to generate rebound resistance to slow down the door closing, and potential energy is stored at the same time, when the door body is completely closed, the free end 401 abuts against the limiting part 202, and the torsion spring 4 is in a completely compressed state; when the door body is opened relative to the box body, the second assembly 2 rotates relative to the first assembly 1, the swinging shaft 201 moves in the swinging groove 101, and the torsion spring 4 resets, so that pressure is applied to the limiting part 202, the door body is pushed to be opened, and the door opening is assisted. Therefore, the door body can be opened only by slightly pulling the door body with small force, so that the door can be opened easily.

Preferably, the swing groove 101 is an arc-shaped groove, and the diameters of the arc-shaped groove and the swing shaft 201 are matched with each other to limit the moving path of the swing shaft 201.

Preferably, the radius of the arc-shaped groove is equal to the distance between the swing shaft 201 and the rotation shaft 3. When the arc-shaped groove is an arc, the radius of the arc-shaped groove is equal to the distance between the swinging shaft 201 and the rotating shaft 3.

The swinging shaft 201 rotates relative to the rotating shaft 3, so the movement track is arc-shaped, and the length of the arc-shaped radius is the distance length between the swinging shaft 201 and the rotating shaft 3; accordingly, the swing groove 101 is arc-shaped, and the width of the arc-shaped groove is slightly larger than the diameter of the swing shaft 201, so that the swing shaft 201 moves smoothly within the groove.

Preferably, the first component 1 further comprises a yielding groove 102 communicated with the swing groove 101, and the fixing end 402 is limited in the yielding groove 102.

Preferably, the relief groove 102 is located at the middle of the swing groove 101.

It can be seen that, through setting up torsional spring 4 in the hinge subassembly, the design is stepped down groove 102 and is carried on spacingly to its stiff end 402, design spacing portion 202 and carry out the application of force to its free end 401, and the torsional spring 4 atress compression produces the resilience force when making the door body of freezer be close to the closure, reaches the buffering and closes the door, avoids assaulting the effect of abnormal sound, and torsional spring 4 resets and releases potential energy when the door body is opened simultaneously to provide the helping hand of opening the door, the supplementary door that opens the door.

Preferably, the hinge assembly further includes a driving part 5 connected to the swing shaft 201, the driving part 5 being provided at the box.

Preferably, as shown in fig. 4, the driving part 5 includes a guide rod 501 connected to the swing shaft 201 and an elastic member 502 connected to the guide rod 501; when the door body and the box body are in a closed state, the swing shaft 201 is located at the first end of the swing groove 101, and the elastic piece 502 is in a compressed state; when the door body is in an opening process relative to the refrigerator body, the swinging shaft 201 moves from the first end to the second end of the swinging groove 101, the elastic piece 502 resets, and the guide rod 501 applies force to the swinging shaft 201, so that the swinging shaft 201 is always in contact with the swinging groove 101.

It can be seen that the drive portion 5 is located in the space of the first component 1. When the door body is in a closed state, the guide rod 501 compresses the elastic piece 502 to enable the elastic piece to be in a compressed state; when the door body is opened, the elastic piece 502 in the driving part 5 begins to reset, thrust is generated to assist in opening the door so that the door is opened in a labor-saving manner, meanwhile, supporting force balanced with the self gravity of the door body is provided, and stable hovering of the door body is realized.

Alternatively, the elastic member 502 may be a compression spring.

It can be seen that the first end and the second end of the oscillating slot 101 are located at the two end points of the arc-shaped slot, respectively; the driving part 5 also has a first end and a second end, the first end is movably connected with the swing shaft 201, and the second end is movably connected with the box body. Alternatively, the swing shaft 201 may have a circular cross section, and the concave portion of the first end of the driving portion 5 may have a circular arc shape in order to fit the swing shaft 201, and it is understood that the circular arc-shaped concave portion can both allow the driving portion 5 to apply a force to the swing shaft 201 and prevent the first end of the driving portion 5 from being disengaged from the swing shaft 201.

As shown in fig. 1, 5, 6, and 7, if a straight line AB is drawn between the second end of the driving portion 5 and the rotating shaft 3, the first end and the second end of the swing groove 101 are located on both sides of the straight line AB, respectively.

(1) When the door body and the box body are changed from a closed state to an open state, the state change of each part of the hinge assembly can be approximately as follows:

state 1: as shown in fig. 1, when the door body is in a closed state, the swing shaft 201 is located at the first end of the swing groove 101, and the first end of the driving portion 5 applies an elastic force to the swing shaft 201, where the elastic force is in a direction from the second end of the driving portion 5 to the first end of the driving portion 5, that is, the elastic force can make the door body close to avoid a large gap.

And 2, state: as shown in fig. 5, when the door is opened, a force departing from the box body is manually applied, the swinging shaft 201 moves from the first end to the second end of the swinging groove 101, and before the swinging shaft 201 does not contact the straight line AB, the torsion spring 4 resets to release potential energy and generate thrust on the second assembly 2, so that the door body can be pushed to open only by applying a small door opening force at the beginning of the door opening, and the door opening with assistance is realized.

And a state 3: as shown in fig. 6, after the swing shaft 201 crosses the straight line AB, it continues to move to the second end of the swing groove 101, at this time, the elastic member 502 starts to reset, and generates a pushing force to the second component, i.e. pushes the door body to continue to open, so that the door opening is extremely labor-saving and easy.

And 4: as shown in fig. 7, the swing shaft 201 moves to the second end of the swing groove 101, the door body is in an open state, and at this time, the first end of the driving portion 5 still applies an elastic force to the swing shaft 201, so that the door body can be maintained in the open state, and the door body can be prevented from shaking.

(2) When the door body and the box body are changed from the opening state to the closing state, the state change of each part of the hinge assembly can be approximately as follows:

state 1: as shown in fig. 7, the swing shaft 201 is located at the second end of the swing groove 101, and the door body is in an open state.

And 2, state: as shown in fig. 6, when the door is closed, a door closing force is manually applied, the door starts to close under the action of self gravity and the applied force, at this time, the swing shaft 201 pushes the guide rod 501 to start compressing the compression spring 502, and the compression spring 502 generates reverse elastic force to act on the second assembly 2, so that the influence of the self gravity of the door can be overcome, and the door can be suspended and buffered to be closed.

State 3: as shown in fig. 5, the swing shaft 201 moves to a straight line AB, and at this time, the driving portion 5 generates a thrust to act on the second assembly 2 to accelerate the closing of the door body, so that a user can obviously perceive that the door body is about to be closed; at this time, the torsion spring 4 starts to be compressed by force, and generates resistance to the second assembly 2, so as to further reduce the impact of door closing and prevent door closing.

And 4, state 4: as shown in fig. 1, the door body is in a completely closed state, and at this time, both the torsion spring 4 and the compression spring 502 are in a compressed state and store potential energy.

According to the refrigerator hinge assembly provided by the invention, the torsional spring is stressed to compress and buffer to close the door when the door body is closed, so that impact abnormal sound is avoided, and meanwhile, a power assisting force is provided when the door body is opened to realize easy opening of the door; the driving part in the hinge resets at the door opening in-process, produces the thrust and assists and opens the door and make and open the door laborsavingly, provides the holding power that mutually balances with door body self gravity simultaneously to the effect that the realization door body was hovered steadily.

The above are only specific application examples of the present invention, and the scope of the present invention is not limited in any way, and all technical solutions formed by using equivalent transformation or equivalent substitution fall within the scope of the present invention.

Claims

1. A hinge assembly is used for a refrigerator, the refrigerator comprises a box body and a door body which are mutually matched, and the box body and the door body are movably connected through a rotating shaft, and the hinge assembly is characterized by comprising a first assembly matched with the box body, a second assembly matched with the door body and a torsion spring movably sleeved on the rotating shaft, wherein the first assembly comprises a swinging groove, the second assembly comprises a limiting part and a swinging shaft which are fixedly arranged on the door body, the torsion spring comprises a fixed end and a free end, the fixed end is limited on the box body, when the door body and the box body are in a closed state, the torsion spring is in a compressed state, the free end is abutted against the limiting part, when the door body is in an opening process relative to the box body, the swinging shaft moves in the swinging groove, and the torsion spring resets to apply force to the limiting part;

the hinge assembly further includes a driving part connected to the swing shaft, the driving part being provided at the box body;

the driving part comprises a guide rod connected with the swinging shaft and an elastic part connected with the guide rod, when the door body and the box body are in a closed state, the swinging shaft is located at the first end of the swinging groove, the elastic part is in a compressed state, when the door body is in an opening process relative to the box body, the swinging shaft moves from the first end of the swinging groove to the second end, and the elastic part resets and applies force to the swinging shaft through the guide rod to enable the swinging shaft to be in contact with the swinging groove all the time.

2. The hinge assembly of claim 1, wherein the swing slot is an arcuate slot, and wherein the diameters of the arcuate slot and the swing shaft are matched to limit the path of movement of the swing shaft.

3. The hinge assembly of claim 2, wherein a radius of the arcuate slot is equal to a spacing between the swing axis and the rotational axis.

4. The hinge assembly of claim 2, wherein the first assembly further comprises an abdicating groove communicating with the swing groove, and the fixed end is limited in the abdicating groove.

5. The hinge assembly of claim 4, wherein the relief slot is located in a middle portion of the swing slot.

6. The hinge assembly as claimed in claim 1, wherein the first member includes two swing grooves symmetrically disposed, and both ends of the swing shaft are respectively limited in the two swing grooves.

7. The hinge assembly of claim 1, wherein the torsion spring includes two fixed ends that are symmetrically disposed, and the free end is located between the two fixed ends.

8. A refrigerator comprising a hinge assembly as claimed in any one of claims 1 to 7.