A refrigeration appliance

Abstract

The application relates to the technical field of refrigeration equipment, and provides a refrigeration equipment which comprises a box body, a door body and a foamed sealing strip, the box body is formed with a storage cavity and a taking opening which is communicated with the storage cavity; the door body can selectively open or close the taking opening; the foamed sealing strip is arranged on the door body, an air cavity is formed in the foamed sealing strip, and the foamed sealing strip is in abutment with the box body in the state that the door body closes the taking opening. The refrigeration equipment provided by the application can reduce the probability of cold leakage.

Description

Technical Field

[0001] This application relates to the field of refrigeration equipment technology, and more particularly to a refrigeration device. Background Technology

[0002] Refrigeration equipment is used to preserve food. Taking a freezer as an example, a freezer consists of a cabinet and a door. The door is used to open or close the retrieval opening. In related technologies, the sealing strip between the cabinet and the door determines the cooling and insulation performance of the cabinet. If the sealing performance of the sealing strip deteriorates, leading to cold leakage and heat exchange between the inside of the cabinet and the outside environment, it will affect the energy consumption of the refrigeration equipment. Summary of the Invention

[0003] In view of this, the embodiments of this application aim to provide a refrigeration device that can reduce the probability of cold leakage.

[0004] To achieve the above objectives, the technical solution of this application embodiment is implemented as follows:

[0005] This application discloses a refrigeration device, including:

[0006] The box body has a storage cavity and an opening for retrieving items that communicates with the storage cavity;

[0007] The door can selectively open or close the retrieval opening;

[0008] A foam sealing strip is provided on the door body. An air cavity is formed inside the foam sealing strip. When the door body is closed and the retrieval opening is closed, the foam sealing strip abuts against the box body.

[0009] In one embodiment, when the door is closed and the retrieval port is closed, the two cavity walls of the air cavity can fit together along the thickness direction.

[0010] In one embodiment, the cavity walls along the thickness direction of the air cavity are a first cavity wall and a second cavity wall, the first cavity wall is formed with a groove recessed toward the door body along the thickness direction, and the second cavity wall is formed with a protrusion that mates with the groove. When the protrusion is located in the groove, the outer peripheral surface of the protrusion fits against the groove wall.

[0011] In one embodiment, there are multiple grooves and multiple protrusions, and the multiple grooves and multiple protrusions are arranged along the width direction, wherein the width direction is perpendicular to the thickness direction.

[0012] In one embodiment, a plurality of the grooves form a first sawtooth, and a plurality of the protrusions form a second sawtooth, wherein the first sawtooth is capable of engaging with the second sawtooth.

[0013] In one embodiment, the refrigeration device includes a magnetic element for magnetically engaging with the housing;

[0014] The magnetic suction element is located on the side of the foam sealing strip away from the door body; or...

[0015] The magnetic components are disposed at both ends of the foamed sealing strip along its width.

[0016] In one embodiment, the magnetic suction element and the foamed sealing strip are formed by co-extrusion.

[0017] In one embodiment, the foamed sealing strip is detachably connected to the door body.

[0018] In one embodiment, one of the door body and the foam sealing strip has a groove, and the other of the door body and the foam sealing strip has a buckle, which engages with the groove.

[0019] In one embodiment, the slot has an inlet and outlet facing the foamed sealing strip, the slot wall surface along the width direction forms a first stepped surface, the buckle surface along the width direction forms a second stepped surface, the buckle enters or exits the slot through the inlet and outlet, and when the buckle is located in the slot, the first stepped surface abuts against the side of the second stepped surface near the foamed sealing strip.

[0020] In one embodiment, the foamed sealing strip is made of PU, TPE or EPDM.

[0021] This application discloses a refrigeration device. By forming an air cavity within a foamed sealing strip, it reduces heat conduction and consequently cold leakage, thus saving energy. Furthermore, when the foamed sealing strip abuts against the cabinet, the air cavity acts as a damping buffer between the door and the cabinet, reducing damage caused by impact, extending the lifespan of both the door and the cabinet, and reducing closing noise. Additionally, when the door deforms, the volume change of the air cavity compensates for the door's dimensions, preventing large gaps between the door and the cabinet and improving sealing performance. Using a foamed sealing strip against the cabinet offers several advantages. First, the foamed material has a lower thermal conductivity than traditional PVC, resulting in less heat exchange with the outside environment. This not only reduces cold leakage and saves energy but also minimizes condensation under high-temperature conditions. Second, the foamed material has high compressive fatigue stability, ensuring good sealing stability even during long-term opening / closing and repeated compression. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of a door body and a foamed sealing strip provided in an embodiment of this application;

[0023] Figure 2 A schematic diagram of the structure of the door body, foam sealing strip, and magnetic suction component provided in another embodiment of this application;

[0024] Figure 3 This is a structural schematic diagram of the door body, foam sealing strip, and magnetic component provided in another embodiment of this application.

[0025] Explanation of reference numerals in the attached figures

[0026] Door body 1; slot 1a; first limiting groove 1a1; second limiting groove 1a2; inlet / outlet 1b; first stepped surface 1c; foamed sealing strip 2; air cavity 2a; first cavity wall 2a1; groove 2a11; connecting groove 2a111; transition groove 2a112; second cavity wall 2a2; protrusion 2a21; buckle 2b; first snap-fit ​​part 2b1; second snap-fit ​​part 2b2; second stepped surface 2c; magnetic suction element 3. Detailed Implementation

[0027] It should be noted that, unless otherwise specified, the embodiments and technical features in the embodiments of this application can be combined with each other, and the detailed descriptions in the specific implementation should be understood as explanations of the purpose of this application and should not be regarded as undue limitations on this application.

[0028] The present application will now be described in further detail with reference to the accompanying drawings and specific embodiments. The terms "first," "second," etc., used in the embodiments of this application are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly including at least one feature. In the description of the embodiments of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0029] This application provides a refrigeration device; please refer to [link / reference]. Figures 1 to 3 The refrigeration equipment includes a cabinet, a door 1, and a foam sealing strip 2. The cabinet has a storage cavity and a retrieval port that connects to the storage cavity. Thus, when a user needs to retrieve or place items from the storage cavity through the retrieval port, they can do so by pulling the door 1.

[0030] The door 1 can selectively open or close the retrieval opening. A foam sealing strip 2 is provided on the door 1, and an air cavity 2a is formed inside the foam sealing strip 2. When the door 1 is closed, the foam sealing strip 2 abuts against the box body.

[0031] This application provides a refrigeration device that, by forming an air cavity 2a within a foamed sealing strip 2, can, on the one hand, reduce heat conduction and thus reduce cold leakage, thereby saving energy consumption of the refrigeration device; on the other hand, when the foamed sealing strip 2 abuts against the cabinet, the air cavity 2a within the foamed sealing strip 2 can act as a damping buffer between the door 1 and the cabinet, reducing damage caused by impact, extending the service life of the door 1 and the cabinet, and reducing closing noise; furthermore, when the door 1 deforms, the volume change of the air cavity 2a can be used to compensate for the size of the door 1, avoiding large gaps between the door 1 and the cabinet, and improving sealing performance. Using a foamed sealing strip 2 to abut against the cabinet has several advantages: firstly, the foamed material has a lower thermal conductivity than traditional PVC material, resulting in less heat exchange with the outside environment. This not only reduces cold leakage and saves energy consumption of the refrigeration device, but also reduces condensation under high-temperature conditions; secondly, the foamed material has high compressive fatigue stability, thus maintaining good sealing stability even during long-term opening / closing and repeated compression.

[0032] For example, in one embodiment, the shape of the box is not limited; for example, it can be a cuboid or a cube. The shape of the door 1 is also not limited; for example, it can be a rectangle or a square.

[0033] For example, in one embodiment, the refrigeration device may be a refrigerator or a freezer.

[0034] For example, in one embodiment, the shape of the foam sealing strip 2 is not limited. For example, it can be a long strip and is disposed around the door body 1.

[0035] In one embodiment, the foamed sealing strip 2 has an air vent communicating with the air chamber 2a, through which air enters and exits the air chamber 2a. Thus, when the door 1 closes the retrieval opening, the door 1 and the cabinet together compress the foamed sealing strip 2, causing it to elastically deform. At this time, the gas in the air chamber 2a can be released from the air vent, buffering the action of the door 1 closing the retrieval opening. This improves the safety of closing the door and reduces closing noise, resulting in a better user experience. After the door 1 opens the retrieval opening, the foamed sealing strip 2 can use its elasticity to recover its deformation, allowing gas to enter the air chamber 2a through the air vent to replenish the air supply, preparing for the next closure of the retrieval opening by the door 1.

[0036] In one embodiment, when the door 1 is closed and the retrieval opening is closed, the two walls of the air cavity 2a along the thickness direction can fit together. For example, the shape of the air cavity 2a is not limited; it can be a cube or cuboid, etc. Thus, when the door 1 is closed and the retrieval opening is closed, the door 1 and the housing together compress the foam sealing strip 2 to compress the gas in the air cavity 2a, providing a buffer between the door 1 and the housing. When the two walls of the air cavity 2a fit together along the thickness direction, they can abut against each other, providing stable support between the housing and the door 1 and reducing the shaking of the foam sealing strip 2 after the door is closed.

[0037] In one embodiment, please refer to Figures 1 to 3 The air cavity 2a has a first cavity wall 2a1 and a second cavity wall 2a2 along the thickness direction. The first cavity wall 2a1 has a groove 2a11 that is recessed toward the door body 1 along the thickness direction. The second cavity wall 2a2 has a protrusion 2a21 that cooperates with the groove 2a11. When the protrusion 2a21 is located in the groove 2a11, the outer peripheral surface of the protrusion 2a21 is in contact with the groove wall of the groove 2a11. Here, when the door 1 closes the retrieval opening, the door 1 and the housing together compress the foam sealing strip 2, causing the first cavity wall 2a1 and the second cavity wall 2a2 to move towards each other. After the protrusion 2a21 is located in the groove 2a11, the outer peripheral surface of the protrusion 2a21 will fit against the cavity wall of the groove 2a11. On the one hand, the cooperation between the protrusion 2a21 and the groove 2a11 can increase the contact area between the first cavity wall 2a1 and the second cavity wall 2a2, so that the joined part can better withstand pressure and torque. On the other hand, it can increase the friction between the first cavity wall 2a1 and the second cavity wall 2a2, so as to avoid relative movement between the first cavity wall 2a1 and the second cavity wall 2a2 in the width direction and improve the stability of the support.

[0038] In one embodiment, please refer to Figures 1 to 3 There are multiple grooves 2a11 and protrusions 2a21, all arranged along the width direction, which is perpendicular to the thickness direction. For example, the number of grooves 2a11 is not limited; for instance, four grooves 2a11 are arranged along the width direction. Similarly, the number of protrusions 2a21 is also not limited; for example, four protrusions 2a21 are arranged at intervals along the width direction. Thus, by interlocking multiple protrusions 2a21 with the grooves 2a11, the stability of the support can be further improved.

[0039] It should be noted that the arrangement here can be either spaced out or connected.

[0040] In one embodiment, multiple grooves 2a11 form a first serration, and multiple protrusions 2a21 form a second serration, with the first serration capable of engaging with the second serration. Thus, when the door 1 closes the access opening, the first cavity wall 2a1 and the second cavity wall 2a2 can engage through the serrations. On one hand, the serrated design significantly reduces wear between the first cavity wall 2a1 and the second cavity wall 2a2, enhancing their wear resistance. On the other hand, the serrated design allows for a more uniform stress distribution between the first cavity wall 2a1 and the second cavity wall 2a2 when subjected to loads applied by the box and door 1, thereby avoiding stress concentration. This helps improve the fatigue strength of the first cavity wall 2a1 and the second cavity wall 2a2.

[0041] As an example, in one embodiment, please refer to Figures 1 to 3 Two of the four grooves 2a11 are connecting grooves 2a111, and the other two are transition grooves 2a112. The two connecting grooves 2a111 are arranged along the width direction, and the two transition grooves 2a112 are respectively located at both ends of the two connecting grooves 2a111 along the width direction. The angle formed by the two groove walls of the connecting groove 2a111 is greater than the angle formed by the two groove walls of the transition groove 2a112. The two groove walls of the connecting groove 2a111 are the same size. The left groove wall of the transition groove 2a112 located on the left side is larger than the right groove wall in the width direction, and the left groove wall of the transition groove 2a112 located on the right side is smaller than the right groove wall in the width direction. In this way, the protrusion 2a21 can avoid structural interference and make the meshing more stable when inserted into the groove 2a11.

[0042] For example, in one embodiment, the plurality of grooves 2a11 and the plurality of protrusions 2a21 may all be wavy or other shapes, depending on whether they can fit together when meshed.

[0043] In one embodiment, please refer to Figure 2 The refrigeration equipment includes a magnetic suction element 3 for magnetically engaging with the cabinet. The magnetic suction element 3 is located on the side of the foam sealing strip 2 away from the door 1. Thus, when the door 1 is pulled to close the access opening, the magnetic suction element 3 can magnetically engage with the cabinet, connecting the door 1 and the cabinet and compressing the foam sealing strip 2 located between them to achieve a sealing effect.

[0044] In one embodiment, please refer to Figure 3 The magnetic components 3 are disposed at both ends of the foam sealing strip 2 along the width direction. For example, taking a refrigerator as an example, the magnetic components 3 can be disposed at both ends of the foam sealing strip 2 along the width direction and at the end away from the door body 1 in the thickness direction. In this way, not only will the magnetic attraction between the magnetic components 3 and the cabinet body be not affected, but the foam sealing strip 2 can also be ensured to have a sufficient thickness within the limited installation space to further improve the heat insulation effect.

[0045] In one embodiment, the magnetic suction element 3 and the foam sealing strip 2 are co-extruded together. In this way, the foam sealing strip 2 and the magnetic suction element 3 can be integrated through co-extrusion, which not only saves post-processing steps but also allows them to fill the gap between the box and the box by magnetically engaging with it, further improving the sealing performance between the box and the door 1.

[0046] In one embodiment, the foam sealing strip 2 is detachably connected to the door body 1. This detachable connection facilitates the replacement of the foam sealing strip 2.

[0047] In one embodiment, please refer to Figures 1 to 3 One of the door body 1 and the foam sealing strip 2 has a groove 1a, and the other has a buckle 2b, which engages with the groove 1a. For example, the door body 1 can have a groove 1a, and the foam sealing strip 2 can have a buckle 2b. Thus, during installation, simply fastening the buckle 2b into the groove 1a completes the connection between the foam sealing strip 2 and the door body 1, simplifying the operation and ensuring good connection stability.

[0048] In one embodiment, please refer to Figures 1 to 3 The slot 1a has an inlet and outlet 1b facing the foam sealing strip 2. The slot wall surface of the slot 1a along the width direction forms a first stepped surface 1c. The buckle 2b has a second stepped surface 2c on its surface along the width direction. The buckle 2b enters or exits the slot 1a through the inlet and outlet 1b. When the buckle 2b is located in the slot 1a, the first stepped surface 1c abuts against the side of the second stepped surface 2c near the foam sealing strip 2.

[0049] For example, the slot 1a includes a first limiting groove 1a1 and a second limiting groove 1a2. The second limiting groove 1a2 is connected along the thickness direction to the end of the first limiting groove 1a1 near the inlet / outlet 1b. The width of the first limiting groove 1a1 gradually increases along the thickness direction from the side near the inlet / outlet 1b to the side away from the inlet / outlet 1b, so as to be approximately triangular. The width of the second limiting groove 1a2 remains approximately constant along the thickness direction from the side near the inlet / outlet 1b to the side away from the inlet / outlet 1b. The width of the second limiting groove 1a2 is less than the maximum width of the first limiting groove 1a1, so that the slot 1a is approximately arrow-shaped. A first stepped surface 1c is formed between the first limiting groove 1a1 and the second limiting groove. The connection point of 1a2; the buckle 2b includes a first snap-fit ​​portion 2b1 and a second snap-fit ​​portion 2b2. The first snap-fit ​​portion 2b1 is connected to the end of the second snap-fit ​​portion 2b2 near the door body 1 along the thickness direction. The width of the first snap-fit ​​portion 2b1 gradually increases from the side near the door body 1 along the thickness direction to the side away from the door body 1, so as to be roughly triangular. The width of the second snap-fit ​​portion 2b2 remains roughly constant from the side near the door body 1 along the thickness direction to the side away from the door body 1. The width of the second snap-fit ​​portion 2b2 is less than the maximum width of the first snap-fit ​​portion 2b1, so that the buckle 2b is roughly arrow-shaped. The second stepped surface 2c is formed at the connection point of the first snap-fit ​​portion 2b1 and the second snap-fit ​​portion 2b2.

[0050] Here, when installing the elastic sealing strip on the door body 1, the buckle 2b can be inserted into the slot 1a through the inlet / outlet 1b. During insertion, since the width of the first snap-fit ​​part 2b1 gradually increases from the side closer to the door body 1 along the thickness direction to the side farther away from the door body 1, the first snap-fit ​​part 2b1 forms a guide surface on both sides of the width, which facilitates the insertion of the buckle 2b. When the buckle 2b is in the slot 1a, the first snap-fit ​​part 2b1 is in the first limiting groove 1a1, the second snap-fit ​​part 2b2 is in the second limiting groove 1a2, and the first step surface 1c abuts against the side of the second step surface 2c close to the foam sealing strip 2. In this way, the contact surface between the buckle 2b and the slot 1a can be increased to further improve the connection stability between the foam sealing strip 2 and the door body 1.

[0051] For example, in one embodiment, the foamed sealing strip 2 can be made of closed-cell micro-foamed material, which has the characteristics of low water absorption, good cushioning and good temperature resistance.

[0052] In one embodiment, the foamed sealing strip 2 is made of PU (polyurethane), TPE (thermoplastic elastomer), or EPDM (ethylene propylene diene monomer rubber). For example, the foamed sealing strip 2 can be made of PU, specifically TPU (thermoplastic polyurethane). Firstly, the production cost of PU foam material is relatively low. Secondly, PU has excellent thermal insulation properties, which can effectively improve the leakage phenomenon of refrigeration equipment, thereby reducing the energy consumption of refrigeration equipment. Furthermore, PU has good chemical stability and can resist the erosion of acids, alkalis, greases, and other chemicals in the storage cavity to a certain extent. The foamed sealing strip 2 can also be made of TPE. Firstly, TPE has a low specific gravity, thus reducing the weight of the foamed sealing strip 2, achieving lightweighting, energy saving, and environmental protection. Secondly, TPE is physically foamed without chemical reaction, therefore, it does not change the material composition and ensures its resilience. Furthermore, the raw materials of TPE foam material do not contain harmful substances such as plasticizers and vulcanizing agents, have a low odor, and are safe and environmentally friendly. The material of the foam sealing strip 2 can also be EPDM. On the one hand, EPDM can maintain good elasticity and stability over a wide temperature range; on the other hand, EPDM can maintain its performance under the action of various chemical substances and has good chemical corrosion resistance; furthermore, EPDM also has good anti-aging properties, low-temperature performance, heat resistance and compression fatigue stability. This allows the foam sealing strip 2 to ensure the stability of the seal during the long-term process of closing the door 1 and opening the access port.

[0053] The above description is merely a preferred embodiment of this application and is not intended to limit the application. Various modifications and variations can be made to this application by those skilled in the art. All modifications, equivalent substitutions, improvements, etc., within the spirit and principles of this application are included within the scope of protection of this application.

Claims

1. A refrigeration device, characterized in that, include: The box body has a storage cavity and an opening for retrieving items that communicates with the storage cavity; The door can selectively open or close the retrieval opening; A foam sealing strip is provided on the door body. An air cavity is formed inside the foam sealing strip. When the door body is closed and the access opening is closed, the foam sealing strip abuts against the box body. The cavity walls along the thickness direction of the air cavity are a first cavity wall and a second cavity wall. The first cavity wall has a groove that is recessed towards the door body along the thickness direction. The second cavity wall has a protrusion that mates with the groove. When the protrusion is located in the groove, the outer peripheral surface of the protrusion fits against the groove wall.

2. The refrigeration equipment according to claim 1, characterized in that, There are multiple grooves and multiple protrusions, and the multiple grooves and multiple protrusions are arranged along the width direction, wherein the width direction is perpendicular to the thickness direction.

3. The refrigeration equipment according to claim 2, characterized in that, The plurality of grooves form a first saw tooth, and the plurality of protrusions form a second saw tooth, wherein the first saw tooth can engage with the second saw tooth.

4. The refrigeration equipment according to claim 1, characterized in that, The refrigeration equipment includes a magnetic element for magnetically engaging with the housing; The magnetic suction element is located on the side of the foam sealing strip away from the door body; or... The magnetic components are disposed at both ends of the foamed sealing strip along its width.

5. The refrigeration equipment according to claim 4, characterized in that, The magnetic accumulator and the foamed sealing strip are formed by co-extrusion.

6. The refrigeration equipment according to claim 1, characterized in that, The foamed sealing strip is detachably connected to the door body.

7. The refrigeration equipment according to claim 6, characterized in that, One of the door body and the foam sealing strip has a groove, and the other of the door body and the foam sealing strip has a buckle, which engages with the groove.

8. The refrigeration equipment according to claim 7, characterized in that, The slot has an inlet and outlet facing the foam sealing strip. The slot wall surface along the width direction forms a first stepped surface, and the buckle surface along the width direction forms a second stepped surface. The buckle enters or exits the slot through the inlet and outlet. When the buckle is located in the slot, the first stepped surface abuts against the side of the second stepped surface near the foam sealing strip.

9. The refrigeration equipment according to claim 1, characterized in that, The foamed sealing strip is made of PU, TPE or EPDM.

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