WO2022000741A1

WO2022000741A1 - Refrigerator

Info

Publication number: WO2022000741A1
Application number: PCT/CN2020/111139
Authority: WO
Inventors: 赵振雷; 杨春
Original assignee: 海信（山东）冰箱有限公司
Priority date: 2020-07-01
Filing date: 2020-08-25
Publication date: 2022-01-06
Also published as: CN111765692A; CN111765692B

Abstract

A refrigerator, which is provided with a box body (2) that defines a thermally insulating low-temperature storage compartment, a box door (13) rotatably arranged on the box body (2), and a low-pressure storage unit, wherein the top part of the box door (2) is provided with an accommodating part (18) for installing a vacuum pump (3); the vacuum pump (3) has an exhaust pipe (39) and a suction pipe (38); and the outside of the vacuum pump (3) is sheathed with a rubber sleeve (9), and the rubber sleeve (9) comprises a main body part (91) provided with an installation cavity (92) that accommodates the vacuum pump (3) and protrusions (93) arranged around the periphery of the main body part (91), wherein the protrusions (93) and the accommodating part (18) abut against each other.

Description

refrigerator

cross reference

This application claims the priority of the Chinese patent application with the application number 202010619927.9 and the invention name "refrigerator" filed with the China Patent Office on July 1, 2020, the entire contents of which are incorporated into this application by reference.

technical field

The present disclosure belongs to the technical field of refrigerators, and particularly relates to a refrigerator.

Background technique

As an indispensable electrical product in home life, refrigerators occupy an important market share. With the improvement of consumers' requirements for the quality of fresh food, the requirements for refrigerators are also getting higher and higher, requiring refrigerators to have higher configuration and more powerful functions, especially hope that the stored fresh food can have better quality. Long storage period to ensure the freshness of the ingredients and prevent the loss of nutrients.

In order to store the food better, a vacuum chamber has been developed in the refrigerator, and the vacuum chamber is evacuated by a vacuum device. The main function of vacuuming is to deoxygenate the vacuum chamber to prevent food spoilage. When the vacuuming device is working, vibration noise is generated, which is directly transmitted to the refrigerator box, which affects the overall performance of the refrigerator and reduces the user experience.

SUMMARY OF THE INVENTION

Some embodiments of the present disclosure provide a refrigerator, comprising:

Box, defining an insulated low temperature storage compartment;

a box door, which is rotatably arranged on the box body to open or close the low-temperature storage compartment; the top of the box door is provided with an accommodating part with an opening;

A low-pressure storage unit, in which air can be evacuated to form an air pressure lower than the atmospheric pressure outside the refrigerator, so as to facilitate the preservation of food;

a vacuum pump, which is arranged in the accommodating part of the box door; it has an exhaust pipe and an exhaust pipe for communicating with the low-pressure storage unit;

A rubber sleeve is sleeved on the outside of the vacuum pump and is fitted with the vacuum pump; the rubber sleeve includes:

a main body part, which is provided with an installation cavity for accommodating the vacuum pump;

The protrusion is disposed around the periphery of the main body portion, and the protrusion is in contact with the accommodating portion.

Description of drawings

1 is a schematic structural diagram of a box door of a refrigerator in an open state according to some embodiments of the present disclosure;

FIG. 2 is a schematic diagram of a relative configuration relationship between a box door of a refrigerator and a vacuum pump assembly according to some embodiments of the present disclosure;

3 is a schematic exploded structural diagram of a door hinge assembly of a refrigerator according to some embodiments of the present disclosure;

FIG. 4 is a schematic diagram of the pipeline of a vacuum pump assembly of a refrigerator according to some embodiments of the present disclosure;

5 is a schematic diagram of relative positions of a vacuum pump assembly of a refrigerator and a box door accommodating portion according to some embodiments of the present disclosure;

6 is a schematic structural diagram of the top of a door of a refrigerator according to some embodiments of the present disclosure;

7 is a schematic diagram of an exploded structure of a top of a box door of a refrigerator according to some embodiments of the present disclosure;

8 is a schematic exploded structural diagram of a top of a box door of a refrigerator according to some embodiments of the present disclosure from another perspective;

9 is a schematic exploded structural diagram of a top of a box door of a refrigerator according to some embodiments of the present disclosure from another perspective;

10 is a schematic structural diagram of a shielding cover on the top of a box door of a refrigerator according to some embodiments of the present disclosure;

11 is a partial structural schematic diagram 1 of the top of a box door of a refrigerator according to some embodiments of the present disclosure;

12 is a second partial structural schematic diagram of the top of a box door of a refrigerator according to some embodiments of the present disclosure;

FIG. 13 is a third partial structural schematic diagram of the top of a box door of a refrigerator according to some embodiments of the present disclosure;

14 is a top view of a top of a door of a refrigerator according to some embodiments of the present disclosure;

Figure 15 is a cross-sectional view of the direction A-A in Figure 14;

FIG. 16 is a cross-sectional view taken along the direction B-B in FIG. 14 .

detailed description

The present disclosure will be further described below in conjunction with specific embodiments, so that those skilled in the art can better understand the present disclosure and implement it, but the scope of protection required by the present disclosure is not limited to the scope described in the specific embodiments. . It should be noted that, the embodiments in the present application and the features in the embodiments may be arbitrarily combined with each other if there is no conflict.

It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present disclosure are only used to explain a certain posture (as shown in the accompanying drawings) If the specific posture changes, the directional indication also changes accordingly.

In addition, descriptions involving "first", "second", etc. in the present disclosure are only for descriptive purposes, and should not be construed as indicating or implying their relative importance or implicitly indicating the number of indicated technical features. Thus, a feature delimited with "first", "second" may expressly or implicitly include at least one of that feature.

In addition, the technical solutions between the various embodiments can be combined with each other, but must be based on the realization by those of ordinary skill in the art. When the combination of technical solutions is contradictory or cannot be realized, it should be considered that the combination of such technical solutions does not exist. , is not within the scope of protection required by the present disclosure.

1-16, a refrigerator 1, the refrigerator 1 includes a thermally insulated box 2, the box 2 includes an outer shell 2a, an inner tank 2b and a thermal insulation layer (not shown) located therebetween. The box body 2 defines a plurality of insulated low-temperature storage compartments to store food and other items. In some embodiments of the present disclosure, the low-temperature storage compartments are the refrigerating compartment 10 located at the upper portion and the freezing compartment located at the bottom, respectively. The low temperature storage compartments can be closed by the respective corresponding box doors 13 . In the present disclosure, the refrigerator compartment 10 is provided with a side-to-side door 13, and the freezer compartment is also provided with a side-by-side door.

The refrigerator 1 has an evaporative refrigeration system forming a closed loop. The refrigeration system at least includes a compressor (not shown), a condenser (not shown), a throttling device (not shown) and an evaporator (not shown). Since such refrigeration systems are well known in the prior art, further descriptions thereof are omitted. Of course, the refrigerator 1 can also use other forms of refrigeration systems (eg, absorption refrigeration systems, thermoelectric refrigeration systems).

The refrigerator 1 is provided with a low-pressure storage unit that can be maintained in a low-pressure state, and a vacuum pump assembly for evacuating gas from the low-pressure storage unit. In some embodiments of the present disclosure, the low-pressure storage unit is provided in the refrigerating compartment 10 . In some embodiments of the present disclosure, the vacuum pump assembly is provided on the top of the box door 13 of the refrigerating compartment 10 where the low-pressure storage unit is located. It should be understood that, in other embodiments, the low-pressure storage unit may also be arranged in other low-temperature storage compartments, such as a changing room whose temperature range can be switched between a refrigerating temperature zone and a freezing temperature zone. The vacuum pump assembly is arranged on the top of the box door 13 of the low-temperature storage compartment where the low-pressure storage unit is located.

When the low-pressure storage unit is closed and the vacuum pump assembly is activated, the gas in the low-pressure storage chamber is evacuated, and the low-pressure storage chamber is in a low-pressure state. According to one embodiment of the present disclosure, at the end of the evacuation procedure, the pressure in the low pressure storage chamber is between a standard atmospheric pressure and an absolute vacuum. Since the air pressure in the low-pressure storage chamber is lower than the standard atmospheric pressure, it is also commonly called "vacuum storage" by those skilled in the art, and the state where the air pressure is lower than the standard atmospheric pressure is called a "vacuum state".

It should be noted that the medium and low pressure storage unit of the present disclosure can be set in the form of a drawer, or can be set in the form of a box (fixed or detachable form, connected to a vacuum pump for vacuuming when vacuuming is required), or can be set as The form of the plastic bag (seal after vacuuming), its specific form is determined according to the specific plan.

As shown in Figures 1-3, the top plate 14 of the box body 2 is provided with a door hinge assembly 6, and the door hinge assembly 6 includes a door hinge plate 7 and a door hinge box 8; the door hinge plate 7 is provided with a first connecting piece, The box door 13 is provided with a second connector that is rotatably connected to the first connector; and at least one of the first connector and the second connector is provided with a pipeline channel. In an embodiment of the present disclosure, the first connecting member includes a connecting sleeve 73, and the second connecting member includes a rotating sleeve 15 sleeved inside or outside the connecting sleeve 73; the The inner hole of the rotating sleeve 15 or the connecting sleeve 73 forms the pipeline channel.

Specifically, the door hinge plate 7 includes a fixed seat plate 71 and a connection seat plate 72 . The fixed seat plate 71 is attached to the outer surface of the top plate 14 of the box body 2; the fixed seat plate 71 is provided with a first connection hole group 75, and screws are installed in the first connection hole group 75 to connect the fixed seat plate 71 to the box The top plate 14 of the body 2 is fixed. The connecting seat plate 72 protrudes from the front side of the box body 2 and is provided with a connecting sleeve 73 thereon. The top of the box door 13 is provided with a rotating sleeve 15 . The rotating sleeve 15 is sleeved on the outside or inside of the connecting sleeve 73 to cooperate with each other so that the box door 13 can rotate around the central axis of the connecting sleeve 73 . The edge of the door hinge plate 7 is provided with a plurality of buckles 74 protruding upward.

The door hinge box 8 includes a box bottom 81 and a box side plate 82 surrounding the box bottom 81 . Among them, the box side plate 82 is provided with a plurality of first hooks 83 corresponding to the positions of the buckle positions 74 on the door hinge plate 7. The first hooks 83 are buckled with the buckle positions 74 on the door hinge plate 7 to lock the door. The hinge plate 7 is fixedly connected to the door hinge box 8 . The door hinge plate 7 is completely installed in the door hinge box 8 . The box bottom 81 of the door hinge box 8 is provided with a second connecting hole group 84 , and screws are installed in the second connecting hole group 84 to fix the door hinge box 8 and the top plate 14 of the box body 2 .

As shown in FIGS. 1-16 , the vacuum pump assembly includes a vacuum pump 3 and a rubber sleeve 9 sleeved outside the vacuum pump 3 . The vacuum pump 3 is provided with a suction pipe 38 and an exhaust pipe 39 . The exhaust pipe 38 and the exhaust pipe 39 are arranged in parallel, and are located at the same end of the vacuum pump 3 . The exhaust pipe 38 is connected with the first pipeline 16 , the first pipeline 16 extends downward along the box door 13 , and is bent at the lower area of the box door 13 and extends toward the side of the box door 13 close to the refrigerator compartment 10 . In this embodiment, a perforation 13a is provided on the side of the box door 13 close to the refrigerating chamber 10, and the first pipeline 16 is arranged in the foam layer of the box door 13, extends downward in the foam layer, and finally penetrates through the perforation 13a. out. The exhaust pipe 39 is connected with the second pipeline 17, the second pipeline 17 extends to the rotating sleeve 15, and passes through the rotating sleeve 15 or the connecting sleeve 73 located in the inner ring from bottom to top; the second pipeline 17 It communicates with the atmospheric environment outside the refrigerator 1 . In this embodiment, the second pipeline 17 is arranged in the foam layer of the box door 13, and extends toward the rotating sleeve 15 in the foam layer, and finally passes through the rotating sleeve 15 or the connecting sleeve 73 located in the inner ring, to communicate with the atmosphere outside the refrigerator. In this embodiment, the arrangement of the first pipeline 16 and the second pipeline 17 enables the gas to be discharged at a distance from the vacuum pump 3 , which effectively avoids condensation caused when the gas is discharged around the vacuum pump 3 . In addition, the first pipeline 16 and the second pipeline 17 are both arranged in the foam layer, and the temperature of the gas passing through the first pipeline 16 and the second pipeline 17 can be increased to a certain extent by utilizing the thermal insulation of the foam layer. It can avoid condensation at the air outlet when air is discharged. In addition, the arrangement of the present disclosure directly discharges the gas extracted from the low-pressure storage unit out of the refrigerator 1, so as to prevent the food in other areas in the refrigerating chamber 10 from smelling each other and affecting the fresh-keeping effect of the food.

Specifically, in some embodiments of the present disclosure, the first pipeline 16 extends in a direction perpendicular to the box door 13 when passing through the through hole 13 a. When the box door 13 is closed, the first pipeline 16 communicates with the low pressure storage chamber of the low pressure storage unit; when the box door 13 is opened, the first pipeline 16 is separated from the low pressure storage unit, and the low pressure storage unit is sealed. As an implementable manner, the low-pressure storage unit is provided with a communication valve. When the box door 13 is closed, under the triggering action of the first pipeline 16, the communication valve is opened, and the first pipeline 16 communicates with the interior of the low-pressure storage unit. ; When the box door 13 is opened, the first pipeline 16 is separated from the low-pressure storage unit, the communication valve is closed, and the low-pressure storage unit is sealed. The connection mode is not limited to the mode described in this embodiment.

As another implementable manner, the low-pressure storage unit is connected to the box door 13, and the first pipeline 16 is directly connected to the low-pressure storage unit; when the box door 13 is opened, the box door 13 drives a low-pressure storage unit disposed thereon. After moving out of the low-pressure storage compartment, the user opens the low-pressure storage unit to take out items as needed.

The rubber sleeve 9 is in contact with the accommodating portion 18 , and the rubber sleeve 9 has a main body portion 91 for installing the vacuum pump 3 . The main body portion 91 is provided with an installation cavity 92 that is consistent with the shape of the vacuum pump 3 ; the radial direction of the installation cavity 92 of the main body portion 91 is The size is not larger than the radial size of the corresponding position of the vacuum pump 3, so that the rubber sleeve 9 is close to the vacuum pump 3, and the vibration on the vacuum pump 3 is absorbed in time.

The periphery of the main body portion 91 is provided with a plurality of protrusions 93 arranged in parallel along the central axis of the main body portion 91 and surrounding the main body portion 91 to improve the deformability of the rubber sleeve 9 and improve the vibration reduction effect. In this embodiment, the Shore hardness of the rubber cover 9 is 35-40.

The top of the box door 13 of the refrigerator 1 is formed with an accommodating portion 18 with an upper end open for accommodating the vacuum pump 3 , and a shielding cover 30 is installed at the open end of the accommodating portion 18 to close the open end thereof. A groove 19 is provided at the edge of the opening end of the accommodating portion 18, and a convex plate 31 matched with the groove 19 is provided at the edge of the shielding cover 30; the convex plate 31 is installed in the groove 19; The cover 30 is in sealing connection with the receptacle 18 . The above arrangement encapsulates the vacuum pump assembly in the accommodating portion 18 at the top of the box door 13, so that the entire system is air-tight, and effectively prevents the noise of the vacuum pump assembly itself from being transmitted through gas as a medium. In this embodiment, the accommodating portion 18 includes a first enclosure plate 47 and first end caps 48 located at both ends of the first enclosure plate 47 ; second locking blocks are provided on the inner walls of the two opposite first enclosure plates 47 of the accommodating portion 18 41 ; the two opposite sides of the shielding cover 30 are provided with second hooks 32 , and the second hooks 32 cooperate with the second blocking blocks 41 to fixedly connect the shielding cover 30 to the accommodating portion 18 .

Both ends of the bottom of the accommodating portion 18 are provided with limiters 42, and the two limiters 42 jointly define an installation gap 43 to accommodate the vacuum pump 3; and the limiters 42 abut against both ends of the vacuum pump 3 to The position of the vacuum pump 3 is limited. The inner wall of the first enclosure plate 47 of the accommodating portion 18 is provided with a snap-on protrusion 44, and the snap-on protrusion 44 is matched with the rubber sleeve 9 to fix the vacuum pump 3. In this embodiment, the latching protrusions 44 are in contact with the main body 91 of the rubber sleeve 9 , that is, the latching protrusions 44 are located between two adjacent protrusions 93 on the rubber sleeve 9 . The above arrangement of the limiting member 42 and the latching protrusion 44 in the accommodating portion 18 can effectively fix the vacuum pump assembly and facilitate installation.

In some embodiments of the present disclosure, the outer diameter of the rubber sleeve 9 (protrusion 93 ) is not smaller than the corresponding position size of the accommodating part 18 , so that when the rubber sleeve 9 is installed inside the accommodating part 18 , the rubber sleeve 9 is connected to the accommodating part 18 . 18 The inner walls are in contact and interact with each other to generate friction to ensure firm installation.

As shown in FIG. 15 and FIGS. 7-9 , the bottom of the accommodating part 18 is provided with a first joint 45 extending toward its open end; the first joint 45 is connected with the exhaust pipe 39 of the vacuum pump 3 . One end of the accommodating portion 18 that is close to the first joint 45 is covered with a cover 33 ; the outer wall of the accommodating portion 18 is provided with a first blocking block 46 , and the casing 33 is provided with a blocking hole for matching with the first blocking block 46 34. The fixed connection between the accommodating portion 18 and the housing 33 is realized through the cooperation of the first clamping block 46 with the clamping hole 34 . In this embodiment, the first joint 45 is provided at one end of the accommodating portion 18 , and the casing 33 includes a second enclosing plate 35 covering the outside of the first enclosing plate 47 and a first end cover 48 covering the side where the first joint 45 is located. The outer second end cap 36 . The first clamping block 46 is provided on the first enclosure plate 47 of the accommodating portion 18 and the first end cover 48 near the first connector 45 ; the clamping hole 34 is provided on the second enclosure plate 35 and the second end cover of the housing 33 36 in order to strengthen the connection strength between the cover 33 and the accommodating part 18 and improve the installation stability.

The casing 33 is provided with a second joint 37 , and the second pipe 17 is installed on the second joint 37 . The second joint 37 communicates with the first joint 45 on the first enclosure plate 47 of the accommodating portion 18 ; that is, the second joint 37 communicates with the exhaust pipe 39 . The second joint 37 includes a guide post 37a at one end away from the casing 33, and the guide post 37a is inversely tapered to facilitate the installation of the second pipeline 17; A concave ring 37c is provided between the plate 37b and the guide post 37a to effectively prevent the second pipeline 17 from falling off; the second pipeline 17 is installed on the second joint 37 through the guide post 37a and stopped by the baffle 37b. The expansion degree of the second pipeline 17 at the concave ring 37c is smaller than the expansion degree of the second pipeline 17 at the guide post 37a, which can effectively prevent the second pipeline 17 from falling off. Wherein, the inner diameter of the second pipeline 17 is denoted as D ₁ , and the outer diameter of one end of the guide post 37a close to the concave ring 37c is D ₂ , wherein D ₁ <D ₂ .

When the box door 13 is closed, the first pipeline 16 is communicated with the low-pressure storage unit; when the vacuum pump 3 is in operation, the air in the low-pressure storage unit passes through the first pipeline 16, the exhaust pipe 38, the vacuum pump 3, the exhaust pipe 39, and the first pipe in sequence. The second pipeline 17 is finally discharged from the box 2 through the second pipeline 17 . In order to avoid that the gas extracted from the low-pressure storage unit is directly discharged into the refrigerator 1, the food in other areas in the refrigerating chamber 10 will be mixed with each other, which will affect the preservation effect of the food; It can improve the transmission of body and reduce noise, optimize the overall performance of the refrigerator, and improve the user experience.

The above are only preferred embodiments of the present disclosure, and are not intended to limit the present disclosure in other forms. Any person skilled in the art may make changes or modifications to equivalent changes by using the technical contents disclosed above. The embodiments are applied to other fields, but any simple modifications, equivalent changes and modifications made to the above embodiments according to the technical essence of the present disclosure without departing from the technical solutions of the present disclosure still belong to the protection scope of the technical solutions of the present disclosure.

Claims

refrigerator, including:

Boxes for defining insulated low temperature storage compartments;

a box door, which is rotatably arranged on the box body to open or close the low-temperature storage compartment, and the top of the box door is provided with an accommodating part with an opening;

A low-pressure storage unit, in which air can be evacuated to form an air pressure lower than the atmospheric pressure outside the refrigerator, so as to facilitate the preservation of food;

a vacuum pump, which is arranged in the accommodating part of the box door, and has an exhaust pipe and an exhaust pipe for communicating with the low-pressure storage unit;

A rubber sleeve is sleeved on the outside of the vacuum pump and fitted with the vacuum pump, and the rubber sleeve includes:

a main body part, which is provided with an installation cavity for accommodating the vacuum pump;

The protrusion is disposed around the periphery of the main body portion, and the protrusion is in contact with the accommodating portion.
The refrigerator according to claim 1, characterized in that: the inner wall of the accommodating part is provided with a latching protrusion, and the latching protrusion is in contact with the main body of the rubber sleeve.
The refrigerator according to claim 2, wherein a plurality of the protrusions are arranged side by side along the central axis of the main body portion and are arranged around the main body portion.
The refrigerator according to any one of claims 1-3, characterized in that: both ends of the bottom of the accommodating part are provided with limiters, and the two limiters together define an installation gap to accommodate the a vacuum pump; the limiting member is in contact with both ends of the vacuum pump.
The refrigerator according to any one of claims 1-3, wherein a groove is provided at the edge of the opening end of the accommodating portion;

A shielding cover is installed at the open end of the accommodating part, and a convex plate matched with the groove is arranged at the edge of the shielding cover; the convex plate is installed in the groove.
The refrigerator according to claim 5, wherein the accommodating part comprises a first enclosure plate and first end caps located at both ends of the first enclosure plate; wherein the inner wall of the first enclosure plate is provided with a first Two locking blocks; second locking hooks are arranged on two opposite sides of the shielding cover, and the second locking hooks cooperate with the second locking blocks to fixedly connect the shielding cover and the accommodating portion.
The refrigerator according to any one of claims 1-3, wherein the bottom of the accommodating part is provided with a first joint extending toward the open end thereof, and the first joint is connected to the exhaust pipe of the vacuum pump connected.
The refrigerator according to claim 7, characterized in that: an outer part of the accommodating part close to one end of the first joint is covered with a cover; The shell is provided with a snap hole matched with the first snap block, and the first snap block cooperates with the snap hole to fixedly connect the accommodating portion and the cover.
The refrigerator according to claim 8, wherein a second connector is provided on the cover, one end of the second connector is communicated with the first connector on the accommodating portion, and the other end is communicated with a second connector. pipeline.
The refrigerator according to claim 9, characterized in that: the second joint comprises a guide post that is remote from the cover and has an inverted cone shape; and a baffle plate is provided at the end of the second joint close to the cover , a concave ring is arranged between the baffle plate and the guide column.