Door seals, refrigeration equipment and injection molds

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 aims to solve the problem of excessive thickness in existing door seals after compression. To this end, 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, so that the door seal seals the cabinet and the door. The air bladder part includes a magnetic strip air bladder for accommodating a magnetic strip and at least one heat-insulating air bladder. In the thickness direction of the magnetic strip air bladder, the number of heat-insulating air bladders overlapping with the magnetic strip air bladder is M, and the total number of bladder walls of the M heat-insulating air bladders and the magnetic strip air bladder in the thickness direction is N, where N = M + 2, and M is a natural number. This utility model effectively reduces the thickness of the door seal after compression, overcoming the aforementioned technical problem.

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 consist of a magnetic strip air bladder and an insulating air bladder. The magnetic strip air bladder contains a magnetic strip, which attracts the door seal to the cabinet. The insulating air bladder contains air with poor thermal conductivity to reduce the loss of cold air within the refrigeration equipment.

[0005] The magnetic stripe airbag has at least one insulating airbag aligned with it in its thickness direction. The compressibility of this insulating airbag ensures the door seal can accommodate the gap between the door and the cabinet. However, this results in a larger thickness of the compressed door seal, leading to a larger gap between the door and the cabinet. Utility Model Content

[0006] One objective of this invention is to solve the problem of excessive thickness of existing door seals after compression.

[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 section includes a magnetic stripe airbag for accommodating the magnetic stripe and at least one heat-insulating airbag.

[0011] In the thickness direction of the magnetic strip airbag, the number of heat-insulating airbags overlapping with the magnetic strip airbag is M, and the total number of airbag walls of the M heat-insulating airbags and the magnetic strip airbags in the thickness direction is N, where N = M + 2, and M is a natural number.

[0012] Optionally, in the thickness direction of the magnetic strip airbag, any two adjacent airbags among the M heat-insulating airbags and the magnetic strip airbags have only one separating airbag wall, so as to reduce the thickness of the door seal.

[0013] Optionally, in the width direction of the magnetic strip airbag, the magnetic strip airbag is wrapped by the at least one heat-insulating airbag to prevent the magnetic strip airbag from contacting the air outside the refrigeration equipment.

[0014] Optionally, the wall of the magnetic strip airbag away from the fixing part is used to abut against the box body and is referred to as the abutting wall, and the other walls of the magnetic strip airbag are referred to as the grooved walls; the grooved walls are wrapped by the at least one heat-insulating airbag to avoid the grooved walls from contacting the air outside the refrigeration equipment.

[0015] Optionally, the airbag portion includes two heat-insulating airbags, which are distributed along the width direction of the magnetic strip airbag.

[0016] Optionally, one of the two heat-insulating airbags is located on one side of the magnetic strip airbag in the width direction, and the wall of the airbag between the two heat-insulating airbags protrudes toward the one of the two heat-insulating airbags.

[0017] Optionally, M = 1.

[0018] In a second aspect, this utility model provides a freezing and refrigeration device, comprising:

[0019] The container is designed with a storage compartment.

[0020] 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.

[0021] Optionally, the refrigeration equipment is a refrigerator, freezer, or freezer.

[0022] 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.

[0023] Based on the foregoing description, those skilled in the art will understand that in the aforementioned technical solution of this utility model, when the number of insulating airbags overlapping with the magnetic strip airbag is M (a natural number) in the thickness direction of the magnetic strip airbag, the thickness of the door seal after compression is effectively reduced by making the total number of airbag walls of the M insulating airbags and the magnetic strip airbag in the thickness direction N = M + 2. Specifically, the above-mentioned structure of the door seal ensures that when the door seal is compressed, there is only one airbag wall between the magnetic strip airbag and an adjacent insulating airbag, which reduces the thickness of the door seal by at least one airbag wall compared to having two airbag walls.

[0024] Furthermore, in the thickness direction of the magnetic strip airbag, by ensuring that any two adjacent airbags among the M heat-insulating airbags and the magnetic strip airbag have only one separating airbag wall, not only is the thickness of the door seal reduced, but gaps connecting to the outside are also avoided between two adjacent airbags, thereby reducing the complexity of injection mold processing.

[0025] Furthermore, in the width direction of the magnetic strip airbag, by having the magnetic strip airbag wrapped by at least one heat-insulating airbag, the magnetic strip airbag is prevented from contacting the air outside the refrigeration equipment, thereby reducing the amount of cold exposure of the door seal at its magnetic strip airbag.

[0026] Furthermore, by positioning one of the two heat-insulating airbags on one side of the magnetic strip airbag width direction, and by making the airbag wall between the two heat-insulating airbags bulge towards one of the two heat-insulating airbags, the partition wall deforms into the inward airbag when the door seal is squeezed and deformed by the door body and the box body, thus preventing the partition wall from being clamped by other airbag walls and affecting the thickness of the door seal after it is squeezed.

[0027] 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

[0028] 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:

[0029] Figure 1 This is a schematic diagram of the structure of a refrigeration and freezing device provided by this utility model;

[0030] Figure 2 This is a perspective view of the door seal strip in some embodiments of this utility model;

[0031] Figure 3 yes Figure 2A cross-sectional view of the central door seal along the AA direction;

[0032] Figure 4 yes Figure 3 A schematic diagram showing a magnet embedded in the central door seal;

[0033] Figure 5 This is a cross-sectional structural diagram of an injection mold provided by this utility model.

[0034] Explanation of reference numerals in the attached figures:

[0035] 001. Refrigeration and freezing equipment;

[0036] 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. Thermal insulation airbag; 130. Liner wing;

[0037] 200. Container body; 201. Storage room;

[0038] 300. Door body; 310. Door frame; 320. Magnetic strip;

[0039] 400. Injection mold; 401. Injection cavity. Detailed Implementation

[0040] 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.

[0041] 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.

[0042] 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.

[0043] 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.

[0044] 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.

[0045] 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.

[0046] The door 300 and the box 200 can be pivotally connected together via a pivot or hinge.

[0047] 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.

[0048] 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.

[0049] The following reference Figures 2 to 4 The door seal 100 in some embodiments of this utility model will be described in detail below.

[0050] 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.

[0051] The fixing part 110 is used to fix the door seal 100 to the door body 300 of the refrigeration equipment 001.

[0052] 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.

[0053] 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.

[0054] like Figure 3 and Figure 4 As shown, in some embodiments of the present invention, the airbag portion 120 includes a magnetic strip airbag 121 for accommodating the magnetic strip 320 and at least one heat-insulating airbag 122.

[0055] 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.

[0056] 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.

[0057] Continue reading Figure 3 and Figure 4 In some embodiments of this utility model, the number of heat-insulating airbags 122 overlapping the magnetic strip airbag 121 in the thickness direction is M, and the walls of the M heat-insulating airbags 122 and the magnetic strip airbag 121 in the thickness direction (e.g., Figure 3 The total number of capsule walls (shown within the dashed box) is N, where N = M + 2. M is a natural number.

[0058] Those skilled in the art will understand that the above-described structure of the door seal 100 ensures that when the door seal 100 is compressed, there is only one wall between the magnetic strip airbag 121 and the adjacent heat-insulating airbag 122 (e.g., Figure 3 The middle bladder wall shown in the dashed box reduces the thickness of the door seal 100 by at least one bladder wall compared to having two bladder walls.

[0059] like Figure 3 and Figure 4 As shown, in some embodiments of this utility model, in the thickness direction of the magnetic strip airbag 121, any two adjacent airbags among the M heat-insulating airbags 122 and the magnetic strip airbag 121 have only one separating airbag wall (e.g., Figure 3 (The middle airbag wall shown within the dashed box) is designed to reduce the thickness of the door seal 100. This also prevents gaps between adjacent airbags from connecting to the outside, thus reducing the complexity of machining the injection mold 400.

[0060] from Figure 3 and Figure 4 As can be seen from this, in some embodiments of this utility model, M=1 to simplify the structure of the door seal 100.

[0061] Of course, in other embodiments of this utility model, those skilled in the art can also set M to other feasible values ​​as needed, such as 2, 3, 4, 5, etc.

[0062] like Figure 3 and Figure 4 As shown, in some embodiments of the present invention, the magnetic strip airbag 121 is wrapped by at least one heat-insulating airbag 122 in the width direction of the magnetic strip airbag 121 to prevent the magnetic strip airbag 121 from contacting the air outside the refrigeration equipment 001, thereby reducing the amount of cold exposure of the door seal 100 at its magnetic strip airbag 121.

[0063] like Figure 3 and Figure 4 As shown, in some embodiments of this utility model, 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. The other walls of the magnetic strip airbag 121 are referred to as the grooved walls 1212. The grooved walls 1212 are wrapped by at least one heat-insulating airbag 122 to avoid the grooved walls 1212 from contacting the air outside the refrigeration equipment 001, thereby reducing the amount of cold exposure of the door seal 100 at its magnetic strip airbag 121.

[0064] from Figure 3 and Figure 4As 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.

[0065] 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.

[0066] like Figure 3 and Figure 4 As can be seen from the above, in some embodiments of this utility model, the airbag part 120 includes two heat-insulating airbags 122, which are distributed along the width direction of the magnetic strip airbag 121.

[0067] from Figure 3 and Figure 4 As can be seen, the two heat-insulating airbags 122 respectively wrap a portion of the grooved bag wall 1212, and a portion of one heat-insulating airbag 122 is in contact with the air outside the refrigeration equipment 001, while a portion of the other heat-insulating airbag 122 is in contact with the air inside the refrigeration equipment 001.

[0068] Those skilled in the art will understand that the aforementioned structure of the door seal 100 allows the cold air inside the refrigeration equipment 001 to be transferred outwards only through the two insulating air bags 122 sequentially. Therefore, compared to a method where the cold air inside the refrigeration equipment 001 is transferred outwards only through one insulating air bag 122, the door seal 100 of this invention effectively reduces the cold air transfer efficiency, thereby improving the insulation effect of the door seal 100.

[0069] like Figure 3 and Figure 4 As shown, in some embodiments of this utility model, one of the two heat-insulating airbags 122 is located on one side of the magnetic strip airbag 121 in the width direction, and the bladder wall between the two heat-insulating airbags 122 protrudes towards one of the two heat-insulating airbags 122 so that it deforms with the deformation of the door seal 100.

[0070] Furthermore, one side of the bladder wall between the two heat-insulating airbags 122 is connected to the grooved bladder wall 1212, and the other side is connected to the heat-insulating airbag 122 and aligned with the fixing part 110, so that the bladder wall between the two heat-insulating airbags 122 deforms when the magnetic strip airbag 121 approaches the fixing part 110.

[0071] Continue reading Figure 3 and Figure 4In some embodiments of this utility model, in the width direction of the magnetic strip airbag 121, the bladder wall between the two heat-insulating airbags 122 is located on one side of the width direction of the grooved bladder wall 1212, so as to prevent the bladder wall from being clamped by the grooved bladder wall 1212 and the bladder wall of the heat-insulating airbag 122, thereby increasing the minimum thickness of the door seal 100 after compression.

[0072] Continue reading Figure 3 and Figure 4 In some embodiments of this utility model, the protruding portion of the bladder wall between the two heat-insulating airbags 122 can abut against the bladder wall of the heat-insulating airbag 122 when the door 300 is closed, so as to divide the heat-insulating airbag 122 into two airbags.

[0073] Those skilled in the art will understand that by making the protruding portion of the bladder wall between the two insulating airbags 122 abut against the bladder wall of the insulating airbag 122 when the door 300 is closed, the inner airbag is divided into two airbags, further improving the insulation effect of the door seal 100.

[0074] 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.

[0075] 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.

[0076] Accordingly, Figure 3 A liner 130 is provided on the left side of the bottom wall of the left-side heat-insulating airbag 122. 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.

[0077] Continue reading Figure 3 A liner 130 is provided on the right side of the right side wall of the right-side heat-insulating airbag 122. When the door 300 is closed, the liner 130 abuts against the side of the door body 310 near the airbag 120 to block the cold air inside the refrigeration equipment 001.

[0078] 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.

[0079] 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.

[0080] 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.

[0081] 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.

[0082] 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.

[0083] 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.

[0084] Based on the foregoing description, those skilled in the art will understand that this utility model not only reduces the thickness of the door seal 100, thereby reducing the closing gap between the door body 300 and the box body 200, but also reduces the processing difficulty of the injection mold 400.

[0085] 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.

[0086] 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 section includes a magnetic stripe airbag for accommodating the magnetic stripe and at least one heat-insulating airbag. In the thickness direction of the magnetic strip airbag, the number of heat-insulating airbags overlapping with the magnetic strip airbag is M, and the total number of airbag walls of the M heat-insulating airbags and the magnetic strip airbags in the thickness direction is N, where N = M + 2, and M is a natural number.

2. The door seal according to claim 1, characterized in that, In the thickness direction of the magnetic strip airbag, any two adjacent airbags among the M heat-insulating airbags and the magnetic strip airbags have only one separating airbag wall, so as to reduce the thickness of the door seal.

3. The door seal according to claim 1, characterized in that, In the width direction of the magnetic strip airbag, the magnetic strip airbag is wrapped by at least one heat-insulating airbag to prevent the magnetic strip airbag from contacting the air outside the refrigeration equipment.

4. The door seal according to claim 3, characterized in that, 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 grooved bladder wall is enclosed by at least one heat-insulating air bladder to prevent the grooved bladder wall from coming into contact with the air outside the refrigeration equipment.

5. The door seal according to claim 4, characterized in that, The airbag section includes two heat-insulating airbags, which are distributed along the width direction of the magnetic strip airbag.

6. The door seal according to claim 5, characterized in that, One of the two heat-insulating airbags is located on one side of the magnetic strip airbag in the width direction, and the wall of the airbag between the two heat-insulating airbags protrudes toward the one of the two heat-insulating airbags.

7. The door seal according to any one of claims 1 to 5, characterized in that, M＝1。 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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