Door seals, refrigeration and freezing equipment and injection moulds

Abstract

This utility model belongs to the field of refrigeration equipment technology, specifically providing a door seal, a refrigeration and freezing equipment, and an injection mold. This utility model addresses the problem of excessive cold leakage at the magnetic strip air bladder of existing refrigeration and freezing equipment door seals. The door seal of this utility model includes a fixing part and an air bladder part. The fixing part is used to fix the door seal to the door of the refrigeration and freezing equipment; the air bladder part is used to abut against the cabinet of the refrigeration and freezing equipment to seal the cabinet and door. The air bladder part includes a magnetic strip air bladder and a wrapping air bladder. The magnetic strip air bladder is used to house the magnetic strip. The wall of the magnetic strip air bladder away from the fixing part abuts against the cabinet and is referred to as the abutting wall. The other walls of the magnetic strip air bladder are referred to as grooved walls. The wrapping air bladder wraps around the grooved walls to prevent the grooved walls from contacting the air outside the refrigeration and freezing equipment. This utility model reduces the cold leakage at the magnetic strip air bladder of the door seal.

Description

Technical Field

[0001] This utility model belongs to the field of refrigeration equipment technology, and specifically provides a door seal, a freezing and refrigeration equipment, and an injection mold. Background Technology

[0002] Existing refrigeration and freezing equipment (such as refrigerators, freezers, freezers, etc.) are generally equipped with door seals to ensure their airtightness and prevent temperature cross-contamination between the inside and outside, which would affect the refrigeration effect of the equipment.

[0003] Existing refrigeration and freezing equipment generally consists of a cabinet and a door. The cabinet defines a storage compartment for containing goods. The door is pivotally connected to the cabinet to open and close the storage compartment. Door seals are typically installed on the door so that they separate from and come into contact with the cabinet as the door opens and closes the storage compartment. When in contact with the cabinet, the door seals are distributed between the door and the cabinet, thus achieving a seal between them.

[0004] Existing door seals typically include at least one air bladder to reduce the loss of cold air from refrigeration equipment by allowing the air inside the air bladder to pass through, as the air has poor thermal conductivity.

[0005] To ensure the door seal adheres tightly to the refrigerator body, existing door seals also feature a magnetic stripe airbag, with a magnetic stripe embedded within it. The magnetic stripe's attraction helps the door seal adhere to the refrigerator body. However, because the magnetic stripe has a higher thermal conductivity than air, and the airbag wall comes into contact with the outside air of the refrigeration unit after the door is closed, the door seal experiences significant cold leakage at the magnetic stripe airbag location. Utility Model Content

[0006] One objective of this invention is to solve the problem of excessive cold exposure at the magnetic strip air bladder of the door seal in existing refrigeration and freezing equipment.

[0007] To achieve the above objectives, this utility model provides a door seal in a first aspect, applicable to refrigeration and freezing equipment, comprising:

[0008] A fixing part is used to fix the door seal to the door of the refrigeration equipment;

[0009] An airbag is used to abut against the cabinet of the refrigeration equipment so that the door seal seals the cabinet and the door.

[0010] The airbag portion includes:

[0011] A magnetic stripe airbag is used to hold a magnetic stripe. The wall of the magnetic stripe airbag away from the fixing part is used to abut against the box body and is referred to as the abutting wall. The other walls of the magnetic stripe airbag are referred to as the grooved walls.

[0012] The airbag is wrapped around the grooved bladder wall to prevent the grooved bladder wall from coming into contact with the air outside the refrigeration equipment.

[0013] Optionally, the encapsulating airbag is provided with a partition wall to divide the encapsulating airbag into an outer airbag and an inner airbag. The outer airbag encapsulates a portion of the grooved bladder wall, and at least a portion of the outer airbag is in contact with the air outside the refrigeration equipment. The inner airbag encapsulates another portion of the grooved bladder wall, and at least a portion of the inner airbag is in contact with the air inside the refrigeration equipment.

[0014] Optionally, the partition wall protrudes from the outer airbag toward the inner airbag.

[0015] Optionally, one side of the partition wall is connected to the grooved bladder wall; the other side of the partition wall is connected to the encapsulating airbag and aligned with the fixing part, so that the partition wall deforms when the magnetic strip airbag approaches the fixing part.

[0016] Optionally, in the width direction of the magnetic strip airbag, the partition wall is located on the side of the grooved airbag wall closer to the inner airbag, so as to prevent the partition wall from being clamped by the grooved airbag wall and the airbag wall that encloses the airbag.

[0017] Optionally, the portion of the partition wall that protrudes toward the inner airbag can abut against the wall of the inner airbag when the door is closed, thereby dividing the inner airbag into two airbags.

[0018] Optionally, the grooved capsule wall is U-shaped.

[0019] In a second aspect, this utility model provides a freezing and refrigeration device, comprising:

[0020] The container is designed with a storage compartment.

[0021] A door body for opening and concealing the storage compartment, the door body comprising a door body, a door seal and a magnetic strip as described in any one of the first aspects, the door seal being installed on the side of the door body facing the box, and the magnetic strip being embedded in the magnetic strip airbag.

[0022] Optionally, the refrigeration equipment is a refrigerator, freezer, or freezer.

[0023] In a third aspect, this utility model provides an injection mold defining an injection cavity, the injection cavity being adapted to the door seal as described in any one of the first aspects to define the shape of the cross-section of the door seal.

[0024] Based on the foregoing description, those skilled in the art will understand that in the aforementioned technical solution of this utility model, by configuring a wrapping airbag for the airbag portion of the door seal, and having the wrapping airbag wrap around the grooved airbag wall, the grooved airbag wall is prevented from contacting the air outside the refrigeration equipment when the door of the refrigeration equipment is closed, thus reducing the amount of cold leakage at the magnetic strip airbag of the door seal. Simultaneously, it also ensures that the grooved airbag wall does not contact the air inside the refrigeration equipment when the door of the refrigeration equipment is closed, further reducing the amount of cold leakage at the magnetic strip airbag of the door seal.

[0025] Furthermore, the airbag is divided into an outer airbag and an inner airbag by a partition wall. The outer airbag wraps around a portion of the grooved wall and comes into contact with the air outside the refrigeration unit, while the inner airbag wraps around the other portion of the grooved wall and comes into contact with the air inside the refrigeration unit. This ensures that the cold air inside the refrigeration unit can only be transferred outwards sequentially through the inner and outer airbags. Therefore, compared to a door seal that allows the cold air inside the refrigeration unit to be transferred outwards through only one airbag, this invention effectively reduces the efficiency of cold air transfer, thereby improving the insulation effect of the door seal.

[0026] Furthermore, by making the partition wall bulge from the outer air bladder to the inner air bladder, the partition wall deforms towards the inner air bladder when the door seal is squeezed and deformed by the door body and the box body, thus avoiding the partition wall interfering with the deformation of the door seal.

[0027] Furthermore, by making the protruding part of the partition wall against the inner air bladder wall when the door is closed, the inner air bladder is divided into two air bladders, which further improves the heat preservation effect of the door seal.

[0028] Other beneficial effects of this utility model will be described in detail below with reference to the accompanying drawings, so that those skilled in the art can more clearly understand the improvement purpose, features and advantages of this utility model. Attached Figure Description

[0029] To more clearly illustrate the technical solution of this utility model, some embodiments of this utility model will be described below with reference to the accompanying drawings. Those skilled in the art should understand that the same reference numerals may indicate the same or similar components or parts in different drawings; the drawings of this utility model are not necessarily drawn to scale. In the drawings:

[0030] Figure 1 This is a schematic diagram of the structure of a refrigeration and freezing device provided by this utility model;

[0031] Figure 2 This is a perspective view of the door seal strip in some embodiments of this utility model;

[0032] Figure 3 yes Figure 2A cross-sectional view of the central door seal along the AA direction;

[0033] Figure 4 yes Figure 3 A schematic diagram showing a magnet embedded in the central door seal;

[0034] Figure 5 This is a cross-sectional structural diagram of an injection mold provided by this utility model.

[0035] Explanation of reference numerals in the attached figures:

[0036] 001. Refrigeration and freezing equipment;

[0037] 100. Door seal; 110. Fixing part; 111. Fixing hook; 120. Airbag part; 121. Magnetic strip airbag; 1211. Abutting airbag wall; 1212. Groove-shaped airbag wall; 122. Enclosing airbag; 1221. Outer airbag; 1222. Inner airbag; 123. Partition wall; 130. Liner wing;

[0038] 200. Container body; 201. Storage room;

[0039] 300. Door body; 310. Door frame; 320. Magnetic strip;

[0040] 400. Injection mold; 401. Injection cavity. Detailed Implementation

[0041] Those skilled in the art should understand that the embodiments described below are merely some embodiments of the present invention, and not all embodiments of the present invention. These embodiments are intended to explain the technical principles of the present invention and are not intended to limit the scope of protection of the present invention. Based on the embodiments provided by the present invention, all other embodiments obtained by those skilled in the art without creative effort should still fall within the scope of protection of the present invention.

[0042] It should be noted that in the description of this utility model, terms such as "center," "upper," "lower," "top," "bottom," "left," "right," "vertical," "horizontal," "inner," and "outer," which indicate direction or positional relationships, are based on the direction or positional relationships shown in the accompanying drawings. These are used merely for ease of description and do not indicate or imply that the corresponding device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0043] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances. For example, unless otherwise specified, the terms "installation," "connection," "joining," and "fixing" can specifically refer to any feasible connection form such as bolt connection, screw connection, welding, insertion, riveting, fusion welding, or snap-fit.

[0044] Furthermore, it should be noted that in the description of this utility model, the terms "coldness" and "heat" are two descriptions of the same physical state. That is, the higher the "coldness" of a target object (e.g., evaporator, air, condenser, etc.), the lower its "heat," and vice versa. A target object absorbs "coldness" while releasing "heat," and releases "coldness" while absorbing "heat." A target object retains "coldness" or "heat" to maintain its current temperature. "Refrigeration" and "heat absorption" are two descriptions of the same physical phenomenon; that is, a target object (e.g., evaporator) absorbs heat while refrigerating.

[0045] like Figure 1 As shown, the door seal 100 of this utility model is applicable to refrigeration equipment 001, which can be a refrigerator, freezer, freezer, etc.

[0046] like Figure 1 As shown, the refrigeration and freezing equipment 001 of this utility model includes a cabinet 200 and a door 300. The cabinet 200 defines a storage compartment 201, and the door 300 is used to open and cover the storage compartment 201. A door seal 100 is provided on the side of the door body 310 facing the cabinet 200, and the door seal 100 can abut against the side of the cabinet 200 facing the door body 310.

[0047] The door 300 and the box 200 can be pivotally connected together via a pivot or hinge.

[0048] It should be noted that the refrigeration and freezing equipment 001 of this utility model is not limited to... Figure 1 The structure shown can be any other feasible structure. For example, a double-door structure, a T-shaped door structure, etc.

[0049] from Figure 1As can be seen, the door 300 includes a door body 310 and a door seal 100 installed on the door body 310, and the door seal 100 is located on the side of the door body 310 facing the box 200.

[0050] The following reference Figures 2 to 4 The door seal 100 in some embodiments of this utility model will be described in detail below.

[0051] like Figures 2 to 4 As shown, in some embodiments of this utility model, the door seal 100 includes a fixing part 110 and an airbag part 120.

[0052] The fixing part 110 is used to fix the door seal 100 to the door body 300 of the refrigeration equipment 001.

[0053] Specifically, a fixing hook 111 is provided on the fixing part 110. A slot (not shown in the figure) adapted to the fixing part 110 is provided on the door body 310, and a fixing groove (not shown in the figure) adapted to the fixing hook 111 is provided on the side wall of the slot. When the fixing part 110 is inserted into the slot on the door body 310, the fixing hook 111 hooks into the fixing groove, thereby fixing the door seal 100 to the door body 310.

[0054] The airbag 120 is used to abut against the cabinet 200 of the refrigeration equipment 001 so that the door seal 100 seals the cabinet 200 and the door 300.

[0055] like Figure 3 and Figure 4 As shown, in some embodiments of this utility model, the airbag part 120 includes a magnetic strip airbag 121 and a wrapping airbag 122.

[0056] Continue reading Figure 3 and Figure 4 In some embodiments of this utility model, the magnetic strip airbag 121 is used to accommodate the magnetic strip 320, the wall of the magnetic strip airbag 121 away from the fixing part 110 is used to abut against the box body 200 and is referred to as the abutting wall 1211, and the other walls of the magnetic strip airbag 121 are referred to as the grooved wall 1212.

[0057] When the door 300 is closed, the abutting wall 1211 of the magnetic strip airbag 121 abuts against the box 200, and at the same time the magnetic strip 320 presses the abutting wall 1211 against the box 200.

[0058] In some embodiments of this invention, the magnetic strip 320 may be a rubber magnetic strip. The magnetic strip 320 may also include a strip-shaped substrate (e.g., a rubber strip) and a plurality of magnets uniformly distributed on the strip-shaped substrate.

[0059] like Figure 3 and Figure 4As shown, in some embodiments of this utility model, the airbag 122 wraps the grooved bladder wall 1212 to prevent the grooved bladder wall 1212 from contacting the air outside the refrigeration equipment 001 when the door 300 is closed.

[0060] Those skilled in the art will understand that by configuring a wrapping airbag 122 for the airbag portion 120 of the door seal 100, and having the wrapping airbag 122 wrap around the grooved airbag wall 1212, the grooved airbag wall 1212 is prevented from contacting the air outside the refrigeration equipment 001 when the door 300 of the refrigeration equipment 001 is closed, thereby reducing the amount of cold air exposed at the magnetic strip airbag 121 of the door seal 100. Simultaneously, the grooved airbag wall 1212 is also prevented from contacting the air inside the refrigeration equipment 001 when the door 300 of the refrigeration equipment 001 is closed, further reducing the amount of cold air exposed at the magnetic strip airbag 121 of the door seal 100.

[0061] from Figure 3 and Figure 4 As can be seen from the above, in some embodiments of this utility model, the grooved bladder wall 1212 is U-shaped so that the magnetic strip airbag 121 is a flat structure as a whole, thereby reducing the thickness of the airbag part 120.

[0062] In addition, in other embodiments of this utility model, those skilled in the art can also set the grooved bladder wall 1212 to other feasible structures as needed, such as C-shaped, semi-circular, triangular, etc.

[0063] like Figure 3 and Figure 4 As shown, in some embodiments of this utility model, a partition wall 123 is provided inside the wrapping airbag 122 to divide the wrapping airbag 122 into an outer airbag 1221 and an inner airbag 1222.

[0064] from Figure 3 and Figure 4 As can be seen, the outer airbag 1221 encloses a portion of the grooved bladder wall 1212, and at least a portion of the outer airbag 1221 is in contact with the air outside the refrigeration equipment 001.

[0065] from Figure 3 and Figure 4 It can also be seen that the inner airbag 1222 encloses another part of the grooved bladder wall 1212, and at least a part of the inner airbag 1222 is in contact with the air inside the refrigeration equipment 001.

[0066] Those skilled in the art will understand that by dividing the airbag 122 into an outer airbag 1221 and an inner airbag 1222 by the partition wall 123, and by ensuring that the outer airbag 1221 wraps around a portion of the grooved wall 1212 and contacts the air outside the refrigeration equipment 001, while the inner airbag 1222 wraps around the other portion of the grooved wall 1212 and contacts the air inside the refrigeration equipment 001, the cold energy inside the refrigeration equipment 001 can only be transferred outwards sequentially through the inner airbag 1222 and the outer airbag 1221. Therefore, compared to the method where the cold energy inside the refrigeration equipment 001 is transferred outwards through only one airbag, the door seal 100 of this invention effectively reduces the cold energy transfer efficiency, thereby improving the insulation effect of the door seal 100.

[0067] like Figure 3 and Figure 4 As shown, in some embodiments of this utility model, the partition wall 123 protrudes from the outer airbag 1221 to the inner airbag 1222, so that the partition wall 123 deforms towards the inner airbag 1222 when the door seal 100 is squeezed and deformed by the door body 300 and the box body 200, thereby avoiding the partition wall 123 interfering with the deformation of the door seal 100.

[0068] like Figure 3 and Figure 4 As shown, in some embodiments of this utility model, one side of the partition wall 123 is connected to the grooved bladder wall 1212; the other side of the partition wall 123 is connected to the encapsulating airbag 122 and aligned with the fixing part 110, so that the partition wall 123 deforms when the magnetic strip airbag 121 approaches the fixing part 110.

[0069] Continue reading Figure 3 and Figure 4 In some embodiments of this utility model, in the width direction of the magnetic strip airbag 121, the partition wall 123 is located on the side of the grooved bladder wall 1212 close to the inner airbag 1222, so as to prevent the partition wall 123 from being clamped by the grooved bladder wall 1212 and the bladder wall that wraps the airbag 122.

[0070] Continue reading Figure 3 and Figure 4 In some embodiments of this utility model, the portion of the partition wall 123 that protrudes into the inner airbag 1222 can abut against the wall of the inner airbag 1222 when the door 300 is closed, so as to divide the inner airbag 1222 into two airbags.

[0071] Those skilled in the art will understand that by making the portion of the partition wall 123 protrude into the inner airbag 1222 and abut against the wall of the inner airbag 1222 when the door 300 is closed, the inner airbag 1222 is divided into two airbags, thereby further improving the heat preservation effect of the door seal 100.

[0072] like Figure 3 and Figure 4 As shown, in some embodiments of this utility model, the door seal 100 further includes a plurality of liner wings 130.

[0073] Specifically, Figure 3 A liner 130 is provided on the right side of the top of the middle fixing part 110. After the door seal 100 is installed on the door body 310, the liner 130 abuts against the side of the door body 310 near the airbag part 120 to prevent dust from entering the slot on the door body 310 used to fix the fixing part 110.

[0074] Accordingly, Figure 3 A liner 130 is provided on the left side of the bottom wall of the inner and outer airbags 1221. After the door seal 100 is installed on the door body 310, the liner 130 abuts against the side of the door body 310 near the airbag part 120 to prevent dust from entering the slot on the door body 310 used to fix the fixing part 110.

[0075] Continue reading Figure 3 A liner 130 is provided on the right side of the right side wall of the inner airbag 1222. When the door 300 is closed, the liner 130 abuts against the side of the door body 310 near the airbag part 120 to block the cold air inside the refrigeration equipment 001.

[0076] In this invention, the door seal 100 can be integrally manufactured using an extrusion process. The material of the door seal 100 may include at least one of polyvinyl chloride, silicone, rubber, acrylonitrile-butadiene-styrene copolymer, and thermoplastic elastomer.

[0077] Furthermore, although not explicitly shown in the figures, in some embodiments of this utility model, a door seal 100 is provided at each of the four edges (top, bottom, left, right) on the side of the door 300 facing the box 200, forming a rectangular frame to ensure that the door seal 100 seals the door 300 and the box 200.

[0078] It should be noted that installing the door seal 100 onto the door body 300 is a common technique in the field and is well known to those skilled in the art, so it will not be described in detail here.

[0079] Furthermore, in this utility model, the door body 300 also includes a magnetic strip 320. That is, the magnetic strip 320 is inserted into the magnetic strip airbag 121 before the door seal 100 is installed on the door body 310.

[0080] like Figure 5 As shown, the present invention also provides an injection mold 400, which defines an injection cavity 401, the injection cavity 401 being adapted to the door seal 100 described in any of the preceding embodiments to define the shape of the cross-section of the door seal 100.

[0081] Continue reading Figure 5 The injection mold 400 also has at least one feed channel (such as...) Figure 5 (As shown by the dashed line in the middle), the raw material for injection molding door seal 100 is injected into injection cavity 401 through the feeding channel.

[0082] The technical solution of this utility model has been described in conjunction with several embodiments above. However, it will be readily understood by those skilled in the art that the protection scope of this utility model is not limited to these specific embodiments. Without departing from the technical principles of this utility model, those skilled in the art can disassemble and combine the technical solutions in the above embodiments, and can also make equivalent changes or substitutions to the relevant technical features. Any changes, equivalent substitutions, improvements, etc., made within the technical concept and / or technical principles of this utility model will fall within the protection scope of this utility model.

[0083] Finally, it should be noted that in this invention, the term "connection" refers to fluid communication, allowing fluid (e.g., air, liquid) to flow between two interconnected entities. Furthermore, this "connection" can be either a leak-free flow of fluid between two interconnected entities, or a flow with slight leakage between two interconnected entities.

Claims

1. A door seal suitable for refrigeration and freezing equipment, comprising: A fixing part is used to fix the door seal to the door of the refrigeration equipment; An air bladder is used to abut against the cabinet of the refrigeration equipment so that the door seal seals the cabinet and the door; characterized in that, The airbag portion includes: A magnetic stripe airbag is used to hold a magnetic stripe. The wall of the magnetic stripe airbag away from the fixing part is used to abut against the box body and is referred to as the abutting wall. The other walls of the magnetic stripe airbag are referred to as the grooved walls. The airbag is wrapped around the grooved bladder wall to prevent the grooved bladder wall from coming into contact with the air outside the refrigeration equipment.

2. The door seal according to claim 1, characterized in that, The airbag is provided with a partition wall to divide it into an outer airbag and an inner airbag. The outer airbag encloses a portion of the grooved bladder wall, and at least a portion of the outer airbag is in contact with the air outside the refrigeration equipment; The inner air bladder encloses another portion of the grooved bladder wall, and at least a portion of the inner air bladder is in contact with the air inside the refrigeration equipment.

3. The door seal according to claim 2, characterized in that, The partition wall protrudes from the outer air bladder toward the inner air bladder.

4. The door seal according to claim 3, characterized in that, One side of the partition wall is connected to the grooved bladder wall; The other side of the partition wall is connected to the wrapping airbag and aligned with the fixing part, so that the partition wall deforms when the magnetic strip airbag approaches the fixing part.

5. The door seal according to claim 4, characterized in that, In the width direction of the magnetic strip airbag, the partition wall is located on the side of the grooved airbag wall close to the inner airbag to prevent the partition wall from being clamped by the grooved airbag wall and the airbag wall that encloses the airbag.

6. The door seal according to any one of claims 3 to 5, characterized in that, The portion of the partition wall that protrudes into the inner airbag can abut against the wall of the inner airbag when the door is closed, thereby dividing the inner airbag into two airbags.

7. The door seal according to any one of claims 1 to 5, characterized in that, The grooved capsule wall is U-shaped.

8. A freezing and refrigeration device, characterized in that, include: The container is designed with a storage compartment. A door for opening and concealing the storage compartment, the door comprising a door body, a door seal and a magnetic strip as described in any one of claims 1 to 7, the door seal being installed on the side of the door body facing the compartment, and the magnetic strip being embedded in a magnetic strip airbag.

9. The refrigeration and freezing equipment according to claim 8, characterized in that, The refrigeration equipment is a refrigerator, freezer, or freezer.

10. An injection mold, characterized in that, The door seal is provided with an injection cavity adapted to fit the door seal according to any one of claims 1 to 7 to define the shape of the cross-section of the door seal.

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