CN107782048B

CN107782048B - Door seal for refrigerating and freezing device and refrigerating and freezing device

Info

Publication number: CN107782048B
Application number: CN201610790834.6A
Authority: CN
Inventors: 李靖; 孙川川; 王栋; 范强; 俞国新
Original assignee: Qingdao Haier Smart Technology R&D Co Ltd
Current assignee: Qingdao Haier Smart Technology R&D Co Ltd; Haier Smart Home Co Ltd
Priority date: 2016-08-31
Filing date: 2016-08-31
Publication date: 2020-06-02
Anticipated expiration: 2036-08-31
Also published as: CN107782048A

Abstract

The present invention relates to a door seal for a refrigerating and freezing apparatus and a refrigerating and freezing apparatus. The door seal includes: an installation part for installing the door seal to a door body of the refrigeration and freezing device; and an air bag part which is connected above the mounting part and is used for forming airtight sealing between the door body and the refrigerator body of the refrigerating and freezing device. The airbag part is provided with two symmetrical auxiliary airbags adjacently arranged above the mounting part, two symmetrical inner main airbags arranged above the two auxiliary airbags, and two outer main airbags surrounding the two auxiliary airbags and the two inner main airbags in the transverse outer side. A refrigerating and freezing device includes: a case having a storage space for storing articles; the door body is connected to the front side of the box body so as to open and/or close at least part of the storage space; and the door seal is arranged on the door body and is configured to form airtight seal between the door body and the refrigerator body when the door body is in a closed state. The refrigerating and freezing device with the door seal has extremely low cold leakage quantity and good sealing property.

Description

Door seal for refrigerating and freezing device and refrigerating and freezing device

Technical Field

The present invention relates to a refrigeration and freezing technology, and more particularly, to a door seal for a refrigeration and freezing apparatus and a refrigeration and freezing apparatus having the same.

Background

At present, door seals used by most refrigerators for forming airtight seal between a refrigerator body and a refrigerator door body comprise an installation part, an air bag part and a magnetic strip arranged in the air bag part. The installation part is used for being clamped with the door body, the air bag part is used for isolating heat and elastically filling a gap between the door bodies, and the magnetic strip is used for attracting the door body to the box body. Because the magnetic stripe's heat conductivity is good, consequently cause the cold volume loss in the box extremely easily, and then lead to box front side opening department to produce frost dew to lead to the refrigerator energy consumption to increase.

In order to avoid the above problems, some existing refrigerators remove the magnetic strip in the door seal, and arrange magnetically attracted components at other positions between the door body and the refrigerator body to seal the doors. The suction force of the sealing structure is not very strong, so that the sealing effect between the box doors can be seriously influenced, and the door body can be frequently bounced open, so that the normal use of a user is influenced.

Disclosure of Invention

It is an object of a first aspect of the present invention to overcome at least one of the disadvantages of the prior art and to provide a non-magnetic door seal for a refrigeration and freezing apparatus that has good sealing properties.

It is a further object of the first aspect of the invention to improve the deformability of the door seal.

It is a further object of the first aspect of the invention to prevent excessive deformation of the door seal.

It is an object of a second aspect of the invention to provide a refrigeration and freezing apparatus.

According to a first aspect of the present invention there is provided a door seal for a refrigeration and freezing apparatus, comprising:

an installation part for installing the door seal to a door body of the refrigeration and freezing device; and

an air bag part connected above the mounting part and used for forming airtight seal between the door body and the refrigerator body of the refrigerating and freezing device, wherein

The air bag part is provided with two symmetrical auxiliary air bags adjacently arranged above the mounting part, two symmetrical inner main air bags arranged above the two auxiliary air bags and two outer main air bags encircling the two auxiliary air bags and the two inner main air bags at the transverse outer sides.

Optionally, each of said inner primary airbags is connected to said outer primary airbag on the same side thereof and separated by a first dividing wall; and is

At least partial sections of the two first partition walls extend from bottom to top in a direction away from each other.

Optionally, the two first partition walls extend from bottom to top in a direction away from each other to a bent portion and then vertically extend upward from the bent portion.

Optionally, each of said outer primary airbags is connected to said secondary airbag on the same side thereof and separated by a third partition wall; and is

The two third partition walls extend from bottom to top in directions away from each other.

Alternatively, a lower end of each of the first partition walls is connected to an upper end of the third partition wall on the same side such that the first partition wall is located outside the third partition wall.

Optionally, two of said inner primary airbags are connected and separated by a second partition wall extending vertically.

Optionally, each of the secondary airbags is connected to the inner primary airbag located above it and separated by a fourth dividing wall; and is

The two fourth partition walls are smoothly connected.

Optionally, the upper end surface of the outer main airbag on one side, the upper end surface of the inner main airbag on the other side, and the upper end surface of the outer main airbag on the other side are in the same horizontal plane and are connected in sequence to form a continuous flat upper end surface of the airbag section; and is

The upper end face of the air bag part is used for being in extrusion contact with the box body.

Optionally, a lower end face of the outer main airbag on one side, a lower end face of the auxiliary airbag on the other side, and a lower end face of the outer main airbag on the other side are connected in sequence to form a continuous and complete lower end face of the airbag section; and is

The installation part is connected with the lower end face of the air bag part.

According to a second aspect of the present invention, there is provided a refrigeration and freezing apparatus comprising:

a case having a storage space for storing articles;

the door body is connected to the front side of the box body so as to open and/or close at least part of the storage space; and

the door seal strip is mounted on the door body and configured to form an airtight seal between the door body and the refrigerator body when the door body is in a closed state.

In order to solve the technical problems mentioned in the background art, a person skilled in the art generally improves how to increase the suction force between the refrigerator body and the door body, and the improved refrigerating and freezing device inevitably has the problems of complex structure, general reliability, great production difficulty and the like. The invention solves the problems by improving the structure of the door seal, breaks through the limitation of the traditional thought and has novel and unique design thought.

Specifically, the invention arranges the air bag part with two symmetrical inner main air bags, two symmetrical outer main air bags and two symmetrical auxiliary air bags in the door seal strip, and particularly limits the position relation of the inner main air bags, the outer main air bags and the auxiliary air bags, so that the air bag part can generate uniform deformation when the door seal strip is subjected to extrusion action (such as suction force or locking force between a refrigerator body and a door body of the refrigerating and freezing device), thereby allowing the air bag part to be in uniform and large-area extrusion contact with the refrigerator body of the refrigerating and freezing device, being beneficial to airtight sealing between the refrigerator body and the door body of the refrigerating and freezing device, and forming certain adhesive force between the air bag part and the refrigerator body, so as to reduce the requirement on the suction force between the refrigerator body and the door body and reduce the possibility of bouncing of the door body. Therefore, the door seal strip provided by the invention has good sealing performance and higher practicability.

Further, at least partial sections of the two first partition walls between the inner main airbag and the outer main airbag extend from bottom to top towards the directions away from each other, so that in the process that the airbag portion of the door seal is deformed due to the extrusion effect, the effect of blocking the deformation of the airbag portion is smaller due to the first partition walls, the deformation capacity of the door seal is improved, and the rebound force of the door seal is reduced to a certain extent. That is, the present invention allows the airbag section to be largely deformed when the door seal receives a small pressing force by specially designing the extending direction and the extending manner of the first partitioning wall. On one hand, the contact surface between the deformed air bag part and the box body of the refrigerating and freezing device can be allowed to be smooth, and the door seal is prevented from bouncing off the box body, so that the sealing effect is improved; on the other hand, the requirement of the refrigerating and freezing device using the door seal strip on the suction force between the box body and the door body can be further reduced.

Furthermore, the two inner main air bags are separated by the second partition wall which vertically extends, so that after the air bag part deforms to a certain degree, the second partition wall can generate a strong effect of blocking the air bag part from continuing to deform, and therefore the door seal can be prevented from excessively deforming, and the problem that a door body of a refrigeration and freezing device using the door seal is difficult to open and even cannot be normally opened is solved.

The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.

Drawings

Some specific embodiments of the invention will be described in detail hereinafter, by way of illustration and not limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:

FIG. 1 is a schematic block diagram of a door seal for a refrigeration freezer in accordance with one embodiment of the present invention;

FIG. 2 is a schematic block diagram of another orientation of a door seal for a refrigeration freezer in accordance with one embodiment of the present invention;

fig. 3 is a schematic top view of a refrigeration freezer in accordance with one embodiment of the invention.

Detailed Description

Embodiments of the present invention first provide a door seal for a refrigerating and freezing apparatus, fig. 1 is a schematic structural view of a door seal for a refrigerating and freezing apparatus according to an embodiment of the present invention, and fig. 2 is a schematic structural view of another orientation of a door seal for a refrigerating and freezing apparatus according to an embodiment of the present invention. Referring to fig. 1 and 2, the door seal 10 for a refrigerator-freezer of the present invention includes a mounting portion 110 and an air bag portion 120. The mounting portion 110 is used to mount the door seal 10 to a door body of a refrigerator-freezer. Specifically, a groove may be formed on the door body of the refrigerating and freezing device, and the mounting portion 110 is configured to be inserted into the groove of the door body, so that the door seal 10 is mounted on the door body. The mounting part 110 is provided with a barb 111, and the barb 111 is used for being in interference fit with a groove of a door body, so that the reliability of connection between the door body and the door seal 10 of a refrigeration and freezing device using the door seal 10 is improved. The air bag portion 120 is connected above the mounting portion 110, and serves to form an airtight seal between the door and the cabinet of the refrigerating and freezing apparatus.

It should be emphasized that the terms "upper", "lower", "horizontal", "vertical", and the like used in the embodiments of the present invention are used for the orientation of the corresponding figures, which are only used for convenience of describing and understanding the technical solution of the present invention, and do not indicate or imply that the referred device or component must have a specific orientation, be constructed in a specific orientation or be operated, and thus, should not be interpreted as limiting the present invention. Specifically, in the present invention, referring to fig. 1 and 2, the direction parallel to the direction in which the door seal 10 is pressed is positioned in the up-down direction or the vertical direction (that is, the arrangement direction of the mounting portion 110 and the airbag portion 120 is defined as the up-down direction or the vertical direction), the direction in which the airbag portion 120 is located is defined as the up direction, and the direction in which the mounting portion 110 is located is positioned as the down direction.

In particular, the bag portion 120 has two symmetrical sub-bags 121 disposed adjacently above the mounting portion 110, two symmetrical inner main bags 122 disposed above the two sub-bags 121, and two outer main bags 123 embracing laterally outside the two sub-bags 121 and the two inner main bags 122. Therefore, when the door seal 10 is subjected to a squeezing action (for example, an action of suction force or locking force between the refrigerator and the door of the refrigeration and freezing device), the air bag portion 120 can be uniformly deformed, so that the air bag portion 120 is allowed to be in uniform squeezing contact with the refrigerator and the freezing device, the airtight sealing between the refrigerator and the door of the refrigeration and freezing device is facilitated, a certain bonding force can be formed between the air bag portion 120 and the refrigerator, the requirement on the suction force between the refrigerator and the door is reduced, and the possibility of the door bouncing off is reduced. Therefore, the door seal 10 provided by the invention has good sealing performance and high practicability. A large number of experiments prove that the heat leakage quantity of the joint between the doors of the refrigerating and freezing device adopting the door seal 10 can be as low as 1.00-1.18W/m, and is reduced by 30% -50% compared with the heat leakage quantity of the door seal adopted by the refrigerating and freezing device in the prior art.

Meanwhile, the door seal 10 of the invention removes the magnetic strip, can avoid the relatively obvious cold quantity leakage phenomenon of the refrigerating device using the door seal 10, thus can improve the heat preservation performance of the refrigerating device and reduce the energy consumption of the refrigerating device.

In addition, since the air bag portion 120 has a plurality of symmetrical main air bags and auxiliary air bags, the interior of the air bag portion 120 forms a multi-layered stacked structural hierarchy and mutual supporting effect. When the door seal 10 is pressed, the auxiliary airbag and the external main airbag not only can play a certain supporting role, but also can greatly improve the elasticity of the airbag portion 120, thereby improving the sealing performance of the door seal 10 and being beneficial to the recovery of the deformation of the airbag portion 120.

In some embodiments of the invention, each inner primary airbag 122 is connected to the outer primary airbag 123 on the same side thereof and separated by a first dividing wall 124. I.e. the inner primary airbag 122 and the outer primary airbag 123 on the same side, are connected and separated by a first dividing wall 124. Specifically, the inner main airbag 122 on the left side is connected to the outer main airbag 123 on the left side, and is partitioned by a first partition wall 124; the inner primary airbag 122 on the right is connected to the outer primary airbag 123 on the right and is separated by another first dividing wall 124.

Further, at least partial sections of the two first partition walls 124 extend from bottom to top in directions away from each other, that is, at least partial sections of the two first partition walls 124 extend from bottom to top toward both lateral sides of the bag portion 120. Therefore, in the process that the door seal 10 is squeezed to deform the airbag portion 120, the first partition wall 124 has a smaller effect of blocking the deformation of the airbag portion 120, so that the deformability of the door seal 10 is improved, and the rebound effect of the door seal 10 is reduced to a certain extent. That is, the present invention allows the airbag section 120 to be largely deformed when the door seal 10 receives a small pressing force by specially designing the extending direction and the extending manner of the first dividing wall 124. On one hand, the contact surface between the deformed airbag portion 120 and the refrigerator body of the refrigerating and freezing device can be allowed to be kept flat, and the door seal 10 is prevented from being bounced off the refrigerator body, so that the sealing effect is improved; on the other hand, the requirement of the refrigerator and freezer using the door seal 10 of the present invention for the suction force between the cabinet and the door can be further reduced.

In some embodiments of the present invention, the two first dividing walls 124 extend from bottom to top in a direction away from each other to a bent portion 1241 and then vertically extend from the bent portion 1241 to top. That is, the sections of the two first partition walls 124 below the bent portion 1241 extend from bottom to top toward directions away from each other, and the section of each first partition wall 124 above the bent portion 1241 extends vertically upward.

Specifically, in the embodiment shown in fig. 1 and 2, a section of the first partition wall 124 below the bent portion 1241 extends obliquely outward from bottom to top, and the section is substantially flat plate-shaped, and the surface thereof is substantially flat. In some alternative embodiments of the present invention, a section of the first dividing wall 124 below the bent portion 1241 may also be curved and extend from bottom to top toward the outside, and the surface of the section is generally curved and convex upward or downward. The curved surface can be an arc curved surface extending along an arc curve, can also be a bent curved surface extending along a folding line in a bending way, and can also be a curved surface with other suitable shapes as long as the extending direction of the curved surface can be ensured to extend outwards approximately from bottom to top.

It is emphasized that the outward extension described in the embodiments of the present invention is intended to extend away from its vertical bisecting plane, rather than extending to the exterior of the airbag portion 120.

In some alternative embodiments of the present invention, all the sections of the two first partition walls 124 extend from bottom to top in directions away from each other.

In some embodiments of the present invention, the lower extension surfaces of the two first partition walls 124 may intersect at a line, so that the two first partition walls 124 and the extension surfaces thereof may form a unitary body having a continuous curved surface, which is downwardly convex. When the section of the first partition wall 124 below the bending point 1241 is flat, the angle formed by the lower extension surfaces of the two first partition walls 124 above is an obtuse angle. Therefore, the deformation of the air bag part 120 can be prevented from being too small and too large when the door seal 10 is extruded, so that the requirement of a refrigeration and freezing device using the door seal 10 on the suction force between the refrigerator body and the door body is further reduced on the premise of ensuring the excellent sealing performance of the door seal 10. Meanwhile, the door body of the refrigerating and freezing device can be prevented from being sucked too tightly, and normal opening and closing of the door body are facilitated.

In some embodiments of the invention, the two inner primary airbags 122 are connected and separated by a vertically extending secondary dividing wall 125. Therefore, after the air bag portion 120 deforms to a certain extent, the second partition wall 125 can generate a strong supporting effect to prevent the air bag portion 120 from continuing to deform, so that excessive deformation of the door seal 10 can be avoided, and the problem that the door body of a refrigeration and freezing device using the door seal 10 is difficult to open or even cannot be opened normally is solved.

Further, the two auxiliary cells 121 are connected and separated by a fifth dividing wall 128 extending vertically. The fifth partition wall 128 may be in the same vertical plane as the second partition wall 125 to enhance its supporting function by cooperation of the fifth partition wall 128 and the second partition wall 125.

In some embodiments of the invention, each outer primary airbag 123 is connected to the secondary airbag 121 on the same side as it and is separated by a third dividing wall 126. I.e. the outer primary 123 and secondary 121 airbags on the same side are connected and separated by a third partition wall 126. Specifically, the outer primary airbag 123 on the left side and the secondary airbag 121 on the left side are connected and separated by a third partition wall 126; the outer primary airbag 123 on the right side is connected to the secondary airbag 121 on the right side and is separated by another third dividing wall 126.

The two third partition walls 126 extend from bottom to top in directions away from each other. That is, the two third partition walls 126 extend from below to above toward both lateral sides of the bag portion 120 to further facilitate deformation of the bag portion 120.

In some embodiments of the present invention, a lower end of each first partition wall 124 is connected to an upper end of a third partition wall 126 located at the same side such that the first partition wall 124 is located at an outer side of the third partition wall 126. That is, the sum of the maximum widths of the two auxiliary airbags 121 in the lateral direction is smaller than the sum of the widths of the two inner main airbags 122 at any one of the lateral directions. This not only improves the strength of the bag portion 120 and facilitates the recovery of deformation, but also allows the upper half portion of the bag portion 120 to be relatively easily deformed.

In some embodiments of the invention, each secondary airbag 121 is connected to the inner primary airbag 122 above it and is separated by a fourth dividing wall 127. That is, the bag portion 120 has two fourth dividing walls 127 in total, and the two fourth dividing walls 127 are smoothly connected. The two fourth partition walls 127 may together form a slightly upwardly convex curve to enhance the supporting effect.

In some embodiments of the present invention, the upper end surface of the outer main airbag 123 on one side, the upper end surface of the inner main airbag 122 on the other side, and the upper end surface of the outer main airbag 123 on the other side are in the same horizontal plane and are connected in sequence to form a continuous flat upper end surface of the airbag section 120. That is, the upper end surface of the bag portion 120 is a plane formed by connecting the upper end surfaces of the four main bags in this order. The upper end surface of the air bag portion 120 is adapted to be in pressing contact with the body of the refrigerating and freezing apparatus.

In some embodiments of the present invention, the lower end surface of the outer main airbag 123 on one side, the lower end surface of the auxiliary airbag 121 on the other side, and the lower end surface of the outer main airbag 123 on the other side are connected in this order to form a continuous and complete lower end surface of the airbag section 120. That is, the lower end surface of the bag portion 120 is a continuous surface formed by connecting the lower end surfaces of the two outer main bags and the two sub-bags. The mounting portion 110 is connected to a lower end surface of the airbag portion 120.

Specifically, the lower end surface of the outer main airbag 123 on one side, the lower end surface of the auxiliary airbag 121 on the one side, and the lower end surface of the auxiliary airbag 121 on the other side are on the same horizontal plane, and the lower end surface of the outer main airbag 123 on the other side extends obliquely downward from the lower end surface of the auxiliary airbag 121 on the other side.

The fourth partition wall 127, the second partition wall 125, and the third partition wall 126 intersect at the same line to reinforce the supporting function and structural strength of the bag portion 120.

The two outer main airbags 123 are substantially L-shaped in cross section and symmetrical to the L-shape in cross section, respectively. Each of the inner primary airbag 122 and each of the secondary airbags 121 is substantially square in cross section.

The door seal 10 may be an integrally formed member made of PVC material, which can allow the airbag portion 120 of the door seal 10 to deform sufficiently and reduce the compression resilience of the airbag portion 120, which is beneficial for improving the sealing performance thereof.

The invention also provides a refrigerating and freezing device. Fig. 3 is a schematic plan view of a refrigerating and freezing apparatus according to an embodiment of the present invention, and fig. 3 shows only a partial structure of the refrigerating and freezing apparatus for easy observation. The refrigerating and freezing device 1 of the embodiment of the invention comprises a box body 20, a door body 30 and a door seal 10 described in any one of the embodiments. The cabinet 10 has a storage space for storing articles. The door 30 is coupled to a front side of the cabinet 20 to open and/or close at least a portion of the storage space. The door seal 10 is mounted to the door 30 and configured to form an airtight seal between the door 30 and the cabinet 20 when the door 30 is in a closed state. The refrigerating and freezing device 1 of the present invention has all the advantages brought by the door seal 10 by having the door seal 10 described in any of the above embodiments, and thus, the description thereof is omitted.

Specifically, the cabinet 20 has a front-side opening for a user to access items, and the door body 30 is pivotally connected to the front side of the cabinet 20 to selectively cover the front-side opening of the cabinet 20. The door seal 10 may have a substantially square ring shape as a whole, and the mounting portion 110 of the door seal 10 may be snap-fitted around the rear surface of the door body 30, with the airbag portion 120 of the door seal 10 exposed to the rear side of the door body 30. The airbag portion 120 may be in pressing contact with the periphery of the forward surface of the cabinet 20 when the door 30 is in the closed state.

Further, the door body 30 has a pivot side pivotally connected to the cabinet 20 by a pivot shaft and an open side opposite to the pivot side thereof. A rear surface of the opening side of the door 30 and a side of the front surface of the cabinet 20 corresponding to the opening side of the door 30 are provided with a locking mechanism 40 to provide a locking force to the cabinet 20 and the door 30 when the door 30 is closed, so that both are maintained in a locked state, that is, the door 30 is maintained in a closed state. At this time, a good and reliable airtight seal can be maintained between the door 20 and the door 30 by the pressing contact between the door seal 10 and the door 20.

Specifically, the locking mechanism 40 may be a magnetic mechanism including magnetically attracted magnets respectively disposed on the box body 20 and the door body 30, and the locking force between the box body 20 and the door body 30 is a magnetic attraction force. Since the magnet of the magnetic mechanism has a small volume, the amount of heat transfer is limited, and the sealing performance of the refrigerating and freezing device 1 is hardly affected.

In some alternative embodiments of the present invention, the locking mechanism 40 may also be a clamping mechanism, which may include clamping members respectively disposed on the box body 20 and the door body 30, and the locking force between the box body 20 and the door body 30 is the clamping force.

It will be understood by those skilled in the art that the refrigerating and freezing device 1 of the present invention includes but is not limited to a refrigerator, a freezer, etc. and other devices having refrigerating and/or freezing functions.

The refrigeration and freezing device 1 according to the embodiment of the present invention may have a compression refrigeration system, a semiconductor refrigeration system or other suitable refrigeration system to provide a cooling air flow to the storage space in the box 20, so as to maintain the storage space in a refrigerated, frozen or other special condition storage environment.

Thus, it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the invention have been illustrated and described in detail herein, many other variations or modifications consistent with the principles of the invention may be directly determined or derived from the disclosure of the present invention without departing from the spirit and scope of the invention. Accordingly, the scope of the invention should be understood and interpreted to cover all such other variations or modifications.

Claims

1. A door seal for a refrigeration freezer comprising:

The air bag part is provided with two symmetrical auxiliary air bags adjacently arranged above the mounting part, two symmetrical inner main air bags arranged above the two auxiliary air bags and two outer main air bags encircling the two auxiliary air bags and the two inner main air bags transversely;

each of the inner primary airbags is connected to the outer primary airbag on the same side thereof and is separated therefrom by a first partition wall; at least partial sections of the two first partition walls extend from bottom to top in the direction away from each other;

each of the outer primary airbags is connected to the secondary airbag on the same side as the outer primary airbag and is separated by a third partition wall; the two third partition walls extend from bottom to top in the direction away from each other;

the lower end of each of the first partition walls is connected to the upper end of the third partition wall on the same side so that the first partition wall is positioned outside the third partition wall.

2. The door seal of claim 1, wherein

Two first partition wall from down upwards extend to behind a kink towards the direction of keeping away from each other and then by this kink vertical upwards extension.

3. The door seal of claim 1, wherein

Two of the inner primary airbags are connected and separated by a second partition wall extending vertically.

4. The door seal of claim 1, wherein

Each auxiliary air bag is connected with the inner main air bag positioned above the auxiliary air bag and is separated by a fourth partition wall; and is

The two fourth partition walls are smoothly connected.

5. The door seal of claim 1, wherein

The upper end surface of the outer main airbag on one side, the upper end surface of the inner main airbag on the other side and the upper end surface of the outer main airbag on the other side are positioned in the same horizontal plane and are sequentially connected to form a continuous and flat upper end surface of the airbag part; and is

6. The door seal of claim 1, wherein

The lower end surface of the outer main airbag on one side, the lower end surface of the auxiliary airbag on the other side and the lower end surface of the outer main airbag on the other side are sequentially connected to form a continuous and complete lower end surface of the airbag part; and is

The installation part is connected with the lower end face of the air bag part.

7. A refrigeration chiller comprising:

a case having a storage space for storing articles;

the door seal of any one of claims 1-6, mounted to the door body and configured to form an air-tight seal between the door body and the chest when the door body is in the closed position.