CN111578608B

CN111578608B - Pressure relief door seal for refrigeration equipment and refrigeration equipment

Info

Publication number: CN111578608B
Application number: CN202010389517.XA
Authority: CN
Inventors: 韦明堂; 吴文超; 常见虎; 任伟
Original assignee: Hefei Hualing Co Ltd; Midea Group Co Ltd; Hefei Midea Refrigerator Co Ltd
Current assignee: Hefei Hualing Co Ltd; Midea Group Co Ltd; Hefei Midea Refrigerator Co Ltd
Priority date: 2020-05-08
Filing date: 2020-05-08
Publication date: 2021-11-05
Anticipated expiration: 2040-05-08
Also published as: CN111578608A

Abstract

The invention discloses a pressure relief door seal for refrigeration equipment and the refrigeration equipment, wherein the pressure relief door seal for the refrigeration equipment comprises: a plurality of door seals connected, the door seals having an interior cavity; a positioning member enclosed within the interior cavity, a rear surface of the positioning member being opposite a rear wall of the interior cavity; the first end of the elastic column is connected with the rear surface of the positioning piece, and the second end of the elastic column is connected with the rear wall of the inner cavity. According to the pressure relief door seal for the refrigeration equipment, the problem that a user is hard to open a door can be solved, additional redundant actions are not needed, the use of the user is facilitated, the user experience is improved, the space can be saved, the structure is simplified, the cost is reduced, and the problems of back suction, abnormal sound, slow reaction and the like of a drain pipe can be avoided.

Description

Pressure relief door seal for refrigeration equipment and refrigeration equipment

Technical Field

The invention relates to the technical field of refrigeration equipment, in particular to a pressure relief door seal for the refrigeration equipment and the refrigeration equipment with the pressure relief door seal for the refrigeration equipment.

Background

In the correlation technique, in order to solve the difficult problem of big single-door refrigerator door opening, can increase the helping hand handle, carry out optimal design in the structure of helping hand handle and increase the helping hand. However, the assisting size and assisting stroke of the assisting handle are limited by the assisting structure, and the assisting structure is high in requirement, so that the assisting handle is complex in structure, large in size and complex in installation requirement.

For the suction between the door body and the box, the helping hand that the helping hand handle can provide is less, and is little to solving the influence of opening the door the hard problem. Meanwhile, the suction force between the door body and the box body greatly fluctuates along with the change of the internal and external pressure difference, and the power assisting structure is difficult to match the fluctuation. In order to match the fluctuation of the pressure difference between the inside and the outside of the refrigerator, different forces need to be applied when a user operates the power-assisted handle, for example, pulling and pulling are needed, so that the user experience is poor.

Alternatively, the pressure difference between the inside and the outside of the room may be equalized by means of a drain pipe. However, the internal and external pressure differences are balanced by the drain pipe, and the problems of abnormal sound of the drain pipe, failure of the pressure difference balancing capacity and the like are caused by long path, large pressure loss, long reaction time and water level change of the water receiving tray.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art. Therefore, the pressure relief door seal for the refrigeration equipment can solve the problem that a user needs to open a door difficultly, does not need additional extra actions, is convenient for the user to use, improves the user experience, saves space, simplifies the structure, reduces the cost, and can avoid the problems of suck-back, abnormal sound, slow reaction and the like of a drain pipe.

The invention also provides the refrigeration equipment with the pressure relief door seal for the refrigeration equipment.

According to the embodiment of the first aspect of the invention, the pressure relief door seal for the refrigeration equipment comprises: a plurality of door seals connected, the door seals having an interior cavity; a positioning member enclosed within the interior cavity, a rear surface of the positioning member being opposite a rear wall of the interior cavity; the first end of the elastic column is connected with the rear surface of the positioning piece, and the second end of the elastic column is connected with the rear wall of the inner cavity.

According to the pressure relief door seal for the refrigeration equipment, the positioning piece and the elastic column are arranged in the door seal, the elastic column is deformed by means of suction force of the refrigeration equipment, and the second end of the elastic column pulls the corresponding position of the door seal to enable the elastic column to be locally deformed, so that the inner space and the outer space of the refrigeration equipment are communicated, and the purpose of pressure relief is achieved. Therefore, the pressure difference inside and outside the refrigeration equipment can be balanced, the problem that the user needs to open the door difficultly is solved from the source of the labor for opening the door, and meanwhile, the elastic column can be harmful and beneficial, so that the deformation amplitude can be automatically adjusted according to the pressure difference, the local deformation of the door seal can be automatically controlled, the user does not need to add extra action, the use by the user is facilitated, and the user experience is improved; in addition, the positioning piece, the elastic column and the door seal are integrated into a whole, so that the space can be saved, the structure can be simplified, the structures and the manufacturing processes of the door body and the box body do not need to be changed, and the cost is reduced; in addition, the circulation path of the gas inside and outside the refrigeration equipment is short, the reaction of the balance pressure difference is fast, the pressure loss is small, and the problems of back suction, abnormal sound, slow reaction and the like of the drain pipe can be avoided.

In addition, the pressure relief door seal for the refrigeration equipment according to the embodiment of the invention also has the following additional technical characteristics:

according to some embodiments of the invention, the pressure relief dock seal for a refrigeration appliance further comprises: the pressure relief piece is packaged in the inner cavity and obliquely extends along the front-back direction, the first end of the pressure relief piece is rotatably connected with the positioning piece, the second end of the pressure relief piece is connected with the rear wall of the inner cavity, a positioning column protruding backwards is arranged on the rear surface of the pressure relief piece, the positioning column is located between the first end and the second end of the pressure relief piece and is abutted against the rear wall of the inner cavity, and the second end of the elastic column is connected with the front surface of the pressure relief piece.

In some embodiments of the present invention, the pressure relief piece and the positioning piece are formed by bending an elastic piece and the pressure relief piece and the positioning piece can rotate through the elastic deformation of the pressure relief piece and the positioning piece.

In some embodiments of the present invention, a distance between the second end of the pressure relief piece and the positioning member is greater than a distance between the positioning post and the positioning member.

In some embodiments of the invention, the second end of the pressure relief member is flush with the rear surface of the positioning post in the fore-aft direction.

According to some embodiments of the invention, the plurality of resilient posts is spaced apart from one another, and each of the resilient posts is connected to a rear surface of the positioning member and a rear wall of the cavity.

According to some embodiments of the invention, the door seal comprises: the sealing device comprises a first sealing strip and a second sealing strip, wherein the first sealing strip is connected with the second sealing strip, the first sealing strip is located on the front side of the second sealing strip and defines the inner cavity together with the second sealing strip.

In some embodiments of the invention, the first seal is provided with an inner groove which opens rearwardly, the positioning member is mounted in the inner groove, and a portion of the front wall of the second seal forms a rear wall of the inner cavity.

According to some embodiments of the present invention, a plurality of the door seals are enclosed into a rectangular frame, and each of the door seals is provided with the positioning member and the elastic column.

The refrigeration equipment according to the embodiment of the second aspect of the invention comprises: the pressure relief door seal for the refrigeration equipment is characterized by comprising a pressure relief door seal body, a pressure relief door seal body and a pressure relief door seal body, wherein the pressure relief door seal body is arranged on the pressure relief door seal body; the door seal comprises a door body and a box body, wherein a plurality of door seals are arranged between the door body and the box body.

According to the refrigeration equipment provided by the embodiment of the invention, the pressure difference between the inside and the outside of the refrigeration equipment can be balanced, the problem that the user needs to open the door difficultly is solved from the source of the labor for opening the door, and meanwhile, the user does not need to add extra actions, so that the refrigeration equipment is convenient for the user to use, and the user experience is improved; in addition, the space can be saved, the structure can be simplified, the structure and the manufacturing process of the door body and the box body are not required to be changed, the cost is reduced, and the problems of back suction, abnormal sound, slow reaction and the like of the drain pipe can be avoided.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

FIG. 1 is a perspective view of a refrigeration unit according to an embodiment of the present invention;

FIG. 2 is a partial perspective view of a door seal according to an embodiment of the present invention;

FIG. 3 is an enlarged schematic view of section A circled in FIG. 2;

FIG. 4 is an enlarged partial view of a pressure relief dock seal for a refrigeration appliance according to an embodiment of the present invention;

FIG. 5 is a schematic structural diagram of a positioning element and a resilient post according to an embodiment of the present invention;

FIG. 6 is a schematic diagram of a refrigeration unit according to an embodiment of the present invention;

FIG. 7 is an enlarged schematic view of portion B encircled in FIG. 6;

FIG. 8 is a schematic structural view of a positioning member, a resilient post and a pressure relief member according to an embodiment of the present invention;

fig. 9 is a schematic view of the working principle of the pressure relief door seal for the refrigeration equipment according to an embodiment of the present invention.

Reference numerals:

a refrigerating device 1,

The door comprises a door body 10, a box body 20, a door seal 30, a first seal 31, a second seal 32, an inner groove 33, a positioning piece 40, an elastic column 50, a pressure relief piece 60 and a positioning column 61.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar 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.

A pressure relief dock seal for a refrigeration appliance, for example a refrigeration appliance 1 which may be a refrigerator, according to an embodiment of the first aspect of the invention is described below with reference to the accompanying drawings.

As shown in fig. 1 to 9, a pressure relief door seal for a refrigeration apparatus according to an embodiment of the present invention includes: a door seal 30, a keeper 40, and a resilient post 50.

Specifically, the door seal 30 is a plurality of connected door seals, and each door seal 30 has an inner cavity. The positioning member 40 is enclosed within the cavity with a rear surface of the positioning member 40 opposite a rear wall of the cavity. The positioning member 40 may be rectangular, and the extending direction of the positioning member 40 may be the same as the extending direction of the door seal 30, so that the positioning member 40 is convenient to install and position, and the uniformity of the internal structure of the door seal 30 is ensured. For example, the positioning member 40 extends along the length of the door seal 30, the length of the door seal 30 is oriented in the up-down direction or the left-right direction, and the rear surface of the positioning member 40 is spaced apart from the rear wall of the cavity in the front-rear direction.

Here, it should be understood that the directions in the present application are based on the direction when the refrigeration apparatus 1 is closed, and "front" refers to the direction facing the user, and "rear" refers to the direction facing away from the user. For example, the rear wall of the interior cavity is remote from the exterior surface of the door body relative to the front wall of the interior cavity.

A first end of the resilient post 50 is attached to the rear surface of the positioning member 40 and a second end of the resilient post 50 is attached to the rear wall of the interior cavity. For example, the elastic column 50 extends in a front-rear direction, a front end of the elastic column 50 is connected to a rear surface of the positioning member 40, and a rear end of the elastic column 50 is connected to a rear wall of the cavity. Wherein the elastic column 50 has elasticity, for example, the elastic column 50 may be a spring.

It is understood that the door seal 30 can be installed between the door and the cabinet of the refrigeration device 1, so as to perform a sealing function. When the refrigeration device 1 operates, the internal temperature of the refrigeration device 1 decreases, and a pressure difference is formed between the inside and the outside of the refrigeration device 1. When a user opens the door body of the refrigeration equipment 1 to take articles, cold air in the refrigeration equipment 1 overflows, and outside hot air enters the refrigeration equipment 1; after a user finishes taking articles to close the door body, the hot air entering the refrigeration equipment 1 is rapidly cooled, the pressure difference between the inside and the outside of the refrigeration equipment 1 is rapidly increased, the suction force generated by the pressure difference enables the gap between the door body and the box body to be reduced, and the door seal strip 30 is compressed.

Under the effect of the power of refrigeration plant 1 compression door strip of paper used for sealing 30, the elasticity post 50 can take place deformation, because the rigidity of setting element 40, the second end of elasticity post 50 links to each other with the back wall of inner chamber, consequently, the door strip of paper used for sealing 30 that elasticity post 50 drove the junction takes place local deformation to inside and outside the intercommunication refrigeration plant 1.

It can be understood that the elastic column 50 can automatically adjust the magnitude of the deformation amplitude thereof according to the magnitude of the internal and external pressure difference of the refrigeration equipment 1, thereby automatically controlling the magnitude of the local deformation of the door seal 30, and further realizing the self-adaptive function of the pressure relief door seal for the refrigeration equipment. For example, when the difference between the internal pressure and the external pressure of the refrigeration equipment 1 is larger, the extrusion force of the refrigeration equipment 1 to the door seal 30 is larger, the deformation amplitude of the elastic column 50 is larger, and the local deformation of the door seal 30 is larger, so that the purpose of rapid pressure relief is achieved, and the labor is saved when a user opens the door.

According to the pressure relief door seal for the refrigeration equipment, the positioning piece 40 is arranged in the door seal 30, the elastic column 50 is deformed by means of the suction force of the refrigeration equipment 1, and the second end of the elastic column 50 pulls the door seal 30 to be locally deformed, so that the inner space and the outer space of the refrigeration equipment 1 are communicated, and the purpose of pressure relief is achieved. Therefore, the pressure difference inside and outside the refrigeration equipment 1 can be balanced, the problem that the user needs to open the door difficultly is solved from the source of the labor for opening the door, and meanwhile, the elastic column 50 can be harmful and beneficial, so that the deformation amplitude can be automatically adjusted according to the pressure difference, the local deformation of the door seal 30 is automatically controlled, the additional redundant action of the user is not needed, the use of the user is facilitated, and the user experience is improved; in addition, the positioning piece 40, the elastic column 50 and the door seal 30 are integrated into a whole, so that the space can be saved, the structure can be simplified, the structures and the manufacturing processes of the door body and the box body do not need to be changed, and the cost is reduced; in addition, the circulation path of the gas inside and outside the refrigeration equipment 1 is short, the reaction of the balance pressure difference is fast, the pressure loss is small, and the problems of back suction, abnormal sound, slow reaction and the like of the drain pipe can be avoided.

According to some embodiments of the present invention, the elastic post 50 may be a plurality of elastic posts 50, the plurality of elastic posts 50 are spaced apart from each other, and each elastic post 50 is connected to the rear surface of the positioning member 40 and the rear wall of the cavity, respectively, so that different positions of the door gasket 30 can be pulled to deform different portions of the door gasket 30. It will be appreciated that the plurality of resilient posts 50 may be different in resilience to provide different degrees of deformation of the door seal 30.

According to some embodiments of the present invention, as shown in fig. 6-9, a pressure relief dock seal for a refrigeration appliance further comprises: a pressure relief member 60. The pressure relief member 60 is enclosed in the cavity, the pressure relief member 60 extends obliquely in the front-rear direction, a first end of the pressure relief member 60 is rotatably connected to the door seal 30, and a second end of the pressure relief member 60 is connected to the rear wall of the cavity. Wherein, be equipped with backward outstanding reference column 61 on the pressure release part 60, reference column 61 is located between the first end and the second end of pressure release part 60, and reference column 61 offsets with the back wall of inner chamber. The second end of the elastomeric post 50 is attached to the front surface of the pressure relief member 60, i.e., the elastomeric post 50 is indirectly attached to the rear wall of the interior cavity via the pressure relief member 60.

For example, the door seal 30 may be a high elastic plastic member, which may be generally elongated, and the length of some of the door seals 30 may be oriented in the up-down direction, such that the pressure relief member 60 may extend obliquely upward from the front to the back along the length of the door seal 30. At this time, the first end of the pressure relief piece 60 refers to the front end of the pressure relief piece 60, the front end of the pressure relief piece 60 can be directly and rotatably connected to the front wall of the inner cavity, and the front end of the pressure relief piece 60 can also be rotatably connected with the door seal 30 through other intermediate structures; the second end of the pressure relief member 60 refers to the rear end of the pressure relief member 60, and the rear end of the pressure relief member 60 may be connected to the rear wall of the cavity by gluing or the like. The positioning column 61 is arranged on one side of the pressure relief piece 60 close to the rear wall of the inner cavity, the positioning column 61 can be cylindrical, and the top end of the positioning column 61 is abutted against the rear wall of the inner cavity.

In this embodiment, because the rear wall of reference column 61 and inner chamber is supported, the top of reference column 61 supports just the one side of door strip of paper used for sealing 30 and box contact promptly, under the effect of refrigeration plant 1 compression door strip of paper used for sealing 30's power, pressure release 60 takes place to rotate, and elastic column 50 takes place to deform, and pressure release 60's second end is close to towards the antetheca of inner chamber to the door strip of paper used for sealing 30 that drives the junction takes place local deformation, thereby communicates inside and outside refrigeration plant 1.

It can be understood that the pressure relief element 60 can automatically adjust the rotation amplitude according to the internal and external pressure difference of the refrigeration device 1, so as to automatically control the local deformation of the door seal 30, thereby realizing the self-adaptive function of the pressure relief element 60. For example, when the difference between the inside pressure and the outside pressure of the refrigeration apparatus 1 is larger, the extrusion force of the refrigeration apparatus 1 to the door seal 30 is larger, the rotation amplitude of the second end of the pressure relief piece 60 is larger, and the local deformation of the door seal 30 is larger, so that the purpose of rapid pressure relief is achieved, and the user is more labor-saving in opening the door.

According to the pressure relief door seal for the refrigeration equipment, the pressure relief piece 60 and the elastic column 50 are arranged in the door seal 30, the pressure relief piece 60 rotates and the elastic column 50 deforms by means of the suction force of the refrigeration equipment 1, and the second end of the pressure relief piece 60 pulls the door seal 30 to locally deform, so that the inner space and the outer space of the refrigeration equipment 1 are communicated, and the purpose of pressure relief is achieved.

In addition, the positioning member 40 can play a positioning role, the installation accuracy of the pressure relief member 60 is ensured through the matching of the pressure relief member 60 and the positioning member 40, and the rotation of the pressure relief member 60 is convenient to realize. For example, the pressure relief member 60 and the positioning member 40 may be one piece; alternatively, the pressure relief member 60 and the securing member 40 may be two separate pieces, wherein the securing member 40 is attached to the front wall of the interior cavity and the front end of the pressure relief member 60 may be pivotally attached to the securing member 40 by a hinge or the like.

In some embodiments of the present invention, as shown in fig. 3, the relief member 60 and the positioning member 40 are formed by bending an elastic member, which realizes the rotation of the relief member 60 by its elastic deformation. Therefore, the rotation action required by the work can be completed by utilizing the elastic deformation of the self-body, the structure is simple and reliable, and the cost is lower. For example, a single piece of spring steel may be bent to form the pressure relief member 60 and the positioning member 40, the bent piece of spring steel may be entirely V-shaped, and one side of the bent piece of spring steel may form the pressure relief member 60 and the other side may form the positioning member 40.

In some embodiments of the present invention, as shown in fig. 4, a distance between the second end of the pressure relief element 60 and the positioning element 40 is greater than a distance between the positioning post 61 and the positioning element 40. Thus, when the pressure relief piece 60 rotates, the rotation radius of the second end of the pressure relief piece 60 is larger than that of the positioning column 61, that is, the length of the arc that the second end of the pressure relief piece 60 passes through is larger than that of the positioning column 61 at the same rotation angle, and the displacement of the second end of the pressure relief piece 60 in the front-back direction is larger than that of the positioning column 61 in the front-back direction, so that the local deformation of the door seal 30 is caused.

For example, when a pressure difference exists between the inside and the outside of the refrigeration device 1, the door body compresses the door seal 30 under the action of a suction force, under the extrusion action of the door body on the door seal 30, the pressure relief piece 60 rotates with the first end of the pressure relief piece 60 as a rotation center, the pressure relief piece 60 rotates towards the positioning piece 40, the angular velocity of the second end of the pressure relief piece 60 is the same as the angular velocity of the positioning column 61, but due to different rotation radii, the linear velocity of the second end of the pressure relief piece 60 is different from the linear velocity of the positioning column 61, and the linear velocity of the second end of the pressure relief piece 60 is greater than the linear velocity of the positioning column 61, so that a displacement difference between the second end of the pressure relief piece 60 and the positioning column 61 in the front-back direction is caused, and due to the existence of the displacement difference, the second end of the pressure relief piece 60 pulls the door seal 30 to generate a local deformation, thereby communicating the spaces inside and outside of the refrigeration device 1.

As shown in fig. 4, when the refrigeration equipment 1 applies a pressing force F to the top end of the positioning column 61, the pressure relief piece 60 rotates, the displacement of the second end of the pressure relief piece 60 in the front-back direction is L2, and the displacement of the positioning column 61 in the front-back direction is L1, where L2> L1 is larger, that is, the movement amplitude of the second end of the pressure relief piece 60 is larger.

According to some embodiments of the present invention, as shown in fig. 4, the second end of the pressure relief piece 60 is flush with the rear surface of the positioning post 61 in the front-rear direction. Like this, on the one hand, can guarantee the planarization of door strip of paper used for sealing 30 surface under the no pressure difference state, make things convenient for door strip of paper used for sealing 30 to closely laminate between the door body and box to guarantee the leakproofness of refrigeration plant 1 under the no pressure difference state, on the other hand, when there is pressure differential inside and outside refrigeration plant 1, the top of reference column 61 can be extruded to the door body, thereby impel pressure relief spare 60 to take place to rotate.

According to some embodiments of the present invention, as shown in FIG. 1, a door seal 30 includes: a first seal 31 and a second seal 32. The first seal 31 is connected with the second seal 32, the first seal 31 is located at the front side of the second seal 32, and the first seal 31 and the second seal 32 jointly define an inner cavity. In this way, the packing of the bleeder 60 and the positioning member 40 is facilitated. For example, the bleeder 60 and the positioning member 40 may be installed first, and the first seal 31 may be connected to the second seal 32 to form the door seal 30.

According to some embodiments of the present invention, as shown in fig. 1, the first seal 31 is provided with an inner groove 33 opened rearward, the pressure relief member 60 and the positioning member 40 are installed in the inner groove 33, and a part of the front wall of the second seal 32 constitutes the rear wall of the inner cavity. Thus, the pressure relief member 60 is more conveniently and accurately installed, ensuring smooth assembly of the overall structure. For example, the bottom wall of the inner tank 33 forms the front wall of the inner chamber, the securing member 40 is secured to the bottom wall of the inner tank 33, and the second end of the pressure relief member 60 is attached to the front wall of the second seal 32.

According to some embodiments of the present invention, as shown in FIG. 1, a plurality of door seals 30 are enclosed into a rectangular frame, each door seal 30 being provided with a bleeder 60. Like this, the pressure release effect is better, and the user is laborsaving more opening the door.

As shown in fig. 1 to 6, a refrigeration apparatus 1 according to an embodiment of the second aspect of the present invention includes: the pressure relief door seal, the door body 10 and the refrigerator body 20 for the refrigeration equipment according to the embodiment of the first aspect of the invention. Wherein, a plurality of door seals 30 are installed between the door 10 and the cabinet 20.

For example, the refrigeration device 1 may be a refrigerator, the door 10 is fixed to the cabinet 20 by an upper hinge and a lower hinge, a plurality of door seals 30 are arranged in a circle between the door 10 and the cabinet 20, and the door seals 30 are fixed to the door 10 for sealing.

The front wall of the first seal 31 may be glued to the door 10, the positioning member 40 is tightly glued to the side of the door seal 30 contacting the door 10 (i.e. the front wall of the inner cavity), and the positioning member 40 is parallel to the door 10 and the cabinet 20, respectively. The top end of the positioning column 61 is equal to the height of the second end of the pressure relief piece 60 (for example, the front end of the pressure relief piece 60), the top end of the positioning column 61 and the second end of the pressure relief piece 60 just abut against the side of the door seal 30 contacting the box body 20 (i.e., the rear wall of the inner cavity), there is no connection between the positioning column 61 and the door seal 30, and the second end of the pressure relief piece 60 is well connected with the door seal 30 and can drive the door seal 30 to partially deform. The elastomeric post 50 is connected between the securing member 40 and the pressure relief member 60.

From this, through set up the pressure release door seal that is used for refrigeration plant between door body 10 and box 20, can balance the pressure differential inside and outside 1 refrigeration plant fast, make door body 10 open more easily, and, the compression of pressure release 60, resilience mainly relies on the elastic deformation of the bending part between setting element 40 and pressure release 60 and the deformation of elasticity post 50 to realize, namely, utilize the suction between door body 10 and the box 20 to realize the compression of pressure release 60 and elasticity post 50, utilize the elastic deformation of spring steel itself and the elastic deformation of elasticity post 50 self to realize the resilience of pressure release 60, moreover, the steam generator is simple in structure, and automatic work can be realized. In addition, because the positioning column 40, the elastic column 50 and the pressure relief piece 60 are arranged in the door seal 30, the respective structures and process conditions of the door body 10 and the box body 20 are not affected, and the economy is good.

Wherein, the opening degree of pressure release door seal (being the local deformation degree of door strip of paper used for sealing 30) becomes positive correlation with the pressure differential inside and outside refrigeration plant 1, that is to say, the pressure differential inside and outside refrigeration plant 1 is big more, the opening degree of pressure release door seal is big more, and along with the reduction of pressure differential, pressure release 60 and elastic column 50 kick-back gradually and reset, reduce to leak cold to realize automatic pressure release balance.

According to the refrigeration equipment 1 disclosed by the embodiment of the invention, the pressure difference between the inside and the outside of the refrigeration equipment 1 can be balanced, the problem that the user needs to open the door difficultly is solved from the source of the labor for opening the door, and meanwhile, the user does not need to add extra actions, so that the use of the user is facilitated, and the user experience is improved; in addition, the space can be saved, the structure can be simplified, the structures and the manufacturing processes of the door body 10 and the box body 20 do not need to be changed, the cost is reduced, and the problems of back suction, abnormal sound, slow reaction and the like of the drain pipe can be avoided.

Alternatively, the positioning members 40 and the elastic pillars 50 are preferentially arranged in the door seals 30 located at four positions corresponding to the upper, lower, left, and right positions of the door body 10, and the number of the elastic pillars 50 may be determined according to specific requirements. Therefore, different arrangement modes can be selected according to different conditions, and the adaptability is strong.

Other constructions and operations of the refrigerating apparatus 1 according to the embodiment of the present invention are known to those skilled in the art and will not be described in detail herein.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, "a first feature" or "a second feature" may include one or more of the features, and the first feature "on" or "under" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact with each other through another feature therebetween. The first feature being "on," "over" and "above" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature.

It should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; either directly or indirectly through intervening media, or through the communication between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "a specific embodiment," "an example" or "some examples" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A pressure relief door seal for a refrigeration unit, comprising:

a plurality of door seals connected, the door seals having an interior cavity;

a positioning member enclosed within the interior cavity, a rear surface of the positioning member being opposite a rear wall of the interior cavity;

a first end of the elastic column is connected with the rear surface of the positioning piece and a second end of the elastic column is connected with the rear wall of the inner cavity;

further comprising:

the pressure relief piece is packaged in the inner cavity and obliquely extends along the front-back direction, the first end of the pressure relief piece is rotatably connected with the positioning piece, the second end of the pressure relief piece is connected with the rear wall of the inner cavity, a positioning column protruding backwards is arranged on the rear surface of the pressure relief piece, the positioning column is located between the first end and the second end of the pressure relief piece and is abutted against the rear wall of the inner cavity, and the second end of the elastic column is connected with the front surface of the pressure relief piece.

2. The pressure relief door seal for a refrigeration apparatus as recited in claim 1 wherein said pressure relief member and said positioning member are formed by bending an elastic member and said pressure relief member is rotatable by its elastic deformation.

3. The pressure relief door seal for a refrigeration unit of claim 1, wherein a distance between the second end of said pressure relief member and said positioning member is greater than a distance between said positioning post and said positioning member.

4. The pressure relief door seal for a refrigeration unit of claim 1, wherein a second end of said pressure relief member is flush with a rear surface of said positioning post in a front-to-rear direction.

5. The pressure relief dock seal for a refrigeration appliance according to claim 1 wherein said resilient posts are a plurality of said resilient posts spaced from one another, each of said resilient posts being connected to a rear surface of said locating member and a rear wall of said interior cavity.

6. The pressure relief dock seal for a refrigeration appliance of claim 1, wherein the dock seal comprises:

the sealing device comprises a first sealing strip and a second sealing strip, wherein the first sealing strip is connected with the second sealing strip, the first sealing strip is located on the front side of the second sealing strip and defines the inner cavity together with the second sealing strip.

7. The pressure relief dock seal for a refrigeration appliance of claim 6, wherein said first seal defines an interior rearwardly opening slot, said locating member is mounted within said interior slot, and a portion of the front wall of said second seal defines the rear wall of said interior cavity.

8. The pressure relief door seal for a refrigeration unit as claimed in any one of claims 1 to 7, wherein a plurality of said door seals enclose a rectangular frame, each of said door seals being provided with said retainer and said resilient post.

9. A refrigeration apparatus, comprising:

the pressure relief dock seal for a refrigeration appliance according to any one of claims 1 to 8;

the door seal comprises a door body and a box body, wherein a plurality of door seals are arranged between the door body and the box body.