Refrigerator door opening trigger structure and refrigerator thereof

Abstract

This utility model relates to the field of refrigerator technology, and in particular to a refrigerator door opening triggering structure and a refrigerator thereof. The refrigerator door opening triggering structure includes a base assembly, a response pad, and a circuit board. The base assembly is used to connect to the refrigerator body; the response pad is installed inside the base assembly and cooperates with the base assembly to form a communicating cavity, which connects to a compartment inside the refrigerator body; the circuit board is installed inside the base assembly and located on the side of the response pad away from the communicating cavity, the circuit board is connected to the base assembly, and the circuit board is electrically connected to the refrigerator's automatic door opening and closing device; wherein, the response pad is configured to trigger the circuit board in response to changes in air pressure inside the compartment. Its advantage is that the response pad can move or deform in response to the user pressing the refrigerator door, triggering the circuit board, which then uses an electrical signal to start the refrigerator's automatic opening and closing device.

Description

Technical Field

[0001] This utility model relates to the field of refrigerator technology, and in particular to a refrigerator door opening trigger structure and the refrigerator thereof. Background Technology

[0002] Currently, automatic door opening and closing has become a common feature in high-end refrigerators. Existing refrigerators typically use displacement sensors to transmit the door opening signal during automatic door opening and closing. That is, when a user presses the door button, the displacement sensor moves. The system determines whether to trigger the automatic door opening / closing command by checking if this displacement exceeds a preset value. To ensure more accurate recognition of the pressing action, the button switch is often pre-displaced during assembly, i.e., a pre-pressure value, to prevent the initial empty travel from affecting the recognition of the door opening action.

[0003] The pre-compression value is often a small, fixed value to maintain a good user experience. However, in actual assembly, it is difficult to control precisely manually, and it is affected by factors such as the flatness of the foamed casing, the flatness of the foamed door, and the assembly errors of other related components. Errors are inevitable. According to production experience, there will be at least ±1mm of error. This can lead to problems such as the door opening being triggered automatically when the user presses it, or the door not opening automatically even when pressed with force, affecting the user experience. Utility Model Content

[0004] To address the aforementioned technical problems, this utility model provides a refrigerator door opening trigger structure.

[0005] A refrigerator door opening trigger structure, installed in the refrigerator body, includes: a base assembly for connecting to the refrigerator body; a response pad installed within the base assembly, the response pad and the base assembly forming a communicating cavity, the communicating cavity communicating with a compartment inside the refrigerator body; and a circuit board installed within the base assembly and located on the side of the response pad away from the communicating cavity, the circuit board being connected to the base assembly and electrically connected to an automatic door opening / closing device of the refrigerator; wherein the response pad is configured to trigger the circuit board in response to changes in air pressure within the compartment.

[0006] With this design, when a user presses the refrigerator door, the internal space of the refrigerator is compressed, increasing the pressure inside the refrigerator compartment. This causes the response pad to move or deform away from the compartment, triggering the circuit board. The circuit board then sends an electrical signal to activate the refrigerator's automatic opening and closing mechanism. By changing the judgment value for the door opening action from an absolute value of displacement to a relative value of pressure difference, the requirement for installation precision is greatly reduced. Furthermore, using a relative value as the judgment standard lowers the requirements for the accuracy of component assembly.

[0007] In one embodiment, a seal is provided on the outer periphery of the responsive gasket, the inner side of the seal is connected to the responsive gasket, and the outer side of the seal abuts against the base assembly.

[0008] In one embodiment, a sealing groove is provided on the inner side of the seal, and the responsive gasket is embedded in the sealing groove.

[0009] In one embodiment, the responsive pad has a first protrusion protruding from one side of the circuit board; and / or, the circuit board has a second protrusion protruding from one side of the responsive pad, the second protrusion being coaxially arranged with the first protrusion.

[0010] In one embodiment, the base assembly includes a base, a fixing seat, and a cover. The base is used to connect to the refrigerator body, the fixing seat abuts against the base, and the cover is disposed on the outside of the fixing seat and connected to the base.

[0011] In one embodiment, the responsive pad is connected to the fixed base, and the base has a first extension platform that extends in a direction away from the responsive pad. The first extension platform is hollow and forms part of the communicating cavity.

[0012] In one embodiment, the mounting base is provided with a second extension platform that extends toward a direction away from the responsive pad and communicates with the communication cavity formed within the first extension platform.

[0013] In one embodiment, the inner wall of the fixing base has a step, and the responsive pad abuts against the step; and / or, at least one buckle is provided on the outer periphery of the fixing base, and at least one slot is provided on the cover, with the buckle correspondingly engaging with the slot.

[0014] In one embodiment, the housing has a mounting section extending outward in a radial direction, the mounting section having a plurality of connection holes through which a plurality of connectors connected to the base are passed.

[0015] This utility model provides a refrigerator, including the refrigerator door opening triggering structure as described above and a refrigerator body. The refrigerator body has a compartment, and the refrigerator door opening triggering structure is installed on the top of the refrigerator body and communicates with the compartment.

[0016] Compared to existing technologies, this invention replaces the traditional displacement sensor triggering method with a pressure sensor triggering method that has lower precision requirements for parts. The response pad can move or deform in response to the user pressing the refrigerator door and trigger the circuit board. The circuit board then uses an electrical signal to start the refrigerator's automatic opening and closing device. Attached Figure Description

[0017] Figure 1 A cross-sectional view of one embodiment of the refrigerator door opening triggering structure provided by this utility model;

[0018] Figure 2 A schematic diagram of one embodiment of the refrigerator door opening triggering structure provided by this utility model;

[0019] Figure 3 A schematic diagram of one embodiment of the fixing base provided by this utility model;

[0020] Figure 4 A schematic diagram of the refrigerator door opening triggering structure provided by this utility model applied to the refrigerator body.

[0021] The symbols in the diagram represent the following meanings:

[0022] 100. Refrigerator door opening trigger structure; 10. Base assembly; 11. Base; 111. First extension platform; 12. Fixing seat; 121. Second extension platform; 122. Step; 123. Buckle; 13. Cover; 131. Bayonet; 132. Mounting section; 133. Connecting hole; 20. Response gasket; 21. First boss; 30. Circuit board; 31. Second boss; 40. Communicating cavity; 50. Seal; 200. Refrigerator body. Detailed Implementation

[0023] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0024] It should be noted that when a mechanism is referred to as being "fixed to" or "set on" another mechanism, it can be directly on the other mechanism or there may be an intervening mechanism. When a mechanism is considered to be "connected to" another mechanism, it can be directly connected to the other mechanism or there may be an intervening mechanism. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application's specification are for illustrative purposes only and do not represent the only possible implementation.

[0025] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0026] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature and the second feature are in indirect contact through an intermediate medium. Furthermore, "above," "over," and "on top" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0027] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used in this application includes any and all combinations of one or more of the associated listed items.

[0028] This utility model provides a refrigerator door opening trigger structure 100, which is installed in the refrigerator body 200. When the user presses the door, the pressure change generated by squeezing the internal space of the refrigerator body 200 drives the response pad 20 to move, thereby triggering the circuit board 30 to control the automatic opening and closing of the refrigerator door, without the need to install a pressure sensor.

[0029] Please see Figures 1-4The refrigerator door opening triggering structure 100 includes a base assembly 10, a response pad 20, and a circuit board 30. The base assembly 10 is used to connect to the refrigerator body 200. The response pad 20 is installed inside the base assembly 10 and cooperates with the base assembly 10 to form a communicating cavity 40, which communicates with a compartment inside the refrigerator body 200. The circuit board 30 is installed inside the base assembly 10 and is located on the side of the response pad 20 away from the communicating cavity 40. The circuit board 30 is connected to the base assembly 10 and is electrically connected to the refrigerator automatic door opening and closing device. The response pad 20 is configured to trigger the circuit board 30 in response to changes in air pressure inside the compartment.

[0030] Thus, when a user presses the refrigerator door, the space inside the refrigerator body 200 is compressed, and the pressure inside the refrigerator compartment increases. This causes the response pad 20 to move or deform away from the compartment, thereby triggering the circuit board 30. The circuit board 30 then uses an electrical signal to activate the refrigerator's automatic opening and closing mechanism. By changing the determination value for the door opening action from an absolute value of displacement to a relative value of pressure difference, the requirement for installation precision is greatly reduced. Furthermore, using a relative value as the determination standard lowers the requirements for the accuracy of parts assembly.

[0031] It needs to be explained that, according to When attempting to open the refrigerator door, pressing on the door causes the internal volume to shrink briefly due to the elasticity of the door seal, thus reducing the pressure. (Original internal pressure) Where R is the ideal gas constant; before opening the door, Let be the amount of gaseous substance, which is a constant; T be the temperature, which is a constant. The internal volume of the refrigerator is a fixed constant for each unit after assembly. The internal pressure increases after the user pushes the door a certain distance *s*. In this case, It relates only to s, and its relation to The relationship is roughly as follows Where k is a specific number related to s and the shape of the box. . As can be seen from the analysis above, It is only related to the door pushing distance s, and is not affected by the precision of the parts themselves or assembly errors. Only a fixed threshold needs to be set. This allows for a highly consistent automatic door opening solution, enhancing the user experience.

[0032] Furthermore, a sealing element 50 is provided on the outer periphery of the response gasket 20. The inner side of the sealing element 50 is connected to the response gasket 20, and the outer side of the sealing element 50 abuts against the base assembly 10. In this way, the sealing element 50 can improve the sealing performance of the response gasket 20, prevent air leakage, and ensure that the response gasket 20 responds accurately to the air pressure inside the refrigerator compartment.

[0033] Specifically, in this embodiment, the responsive gasket 20 is circular, and the seal 50 is adapted to the shape of the responsive gasket 20 as a sealing ring structure, with the seal 50 surrounding the entire outer periphery of the responsive gasket 20. In other embodiments, if the responsive gasket 20 is configured with other shapes, such as rectangular or polygonal, the seal 50 also corresponds to the responsive gasket 20 being rectangular or polygonal.

[0034] Furthermore, a sealing groove is formed on the inner side of the seal 50, and the responsive gasket 20 is embedded in the sealing groove. In this way, the connection strength between the seal 50 and the responsive gasket 20 is improved, ensuring that the seal 50 will not shift or leak.

[0035] The response pad 20 has a first protrusion 21 protruding on the side facing the circuit board 30; and / or, the circuit board 30 has a second protrusion 31 protruding on the side facing the response pad 20, the second protrusion 31 being coaxially arranged with the first protrusion 21. Thus, the response pad 20 can directly abut against the circuit board 30 through the first protrusion 21 to trigger the circuit board 30, or it can trigger the circuit board 30 through the abutment of the first protrusion 21 and the second protrusion 31. The arrangement of the first protrusion 21 and the second protrusion 31 makes the triggering of the circuit board 30 by the response pad 20 more stable. If the first protrusion 21 and the second protrusion 31 are not provided, and the response pad 20 only makes plane-to-plane contact with the circuit board 30, it is easy to fail to reach the trigger point on the circuit board 30.

[0036] The base assembly 10 includes a base 11, a fixing seat 12, and a cover 13. The base 11 is used to connect with the refrigerator body 200, the fixing seat 12 abuts against the base 11, and the cover 13 covers the outside of the fixing seat 12 and is connected to the base 11. In this way, the cover 13 protects the fixing seat 12 and its internal components, the base 11 is used to assemble with the refrigerator body, and the fixing seat 12 supports some of the internal components. The three components are processed separately and then assembled together, which reduces the difficulty of manufacturing and processing costs, and facilitates later maintenance and replacement.

[0037] Specifically, in this embodiment, the base 11 is partially embedded inside the refrigerator body 200, the fixing seat 12 abuts against the side of the base 11 away from the refrigerator body 200, a response pad 20 is fixed on the fixing seat 12, the cover 13 covers the side of the fixing seat 12 away from the base 11, and the circuit board 30 is connected to the cover 13.

[0038] The responsive pad 20 is connected to the fixed base 12. A first extension platform 111 is constructed on the base 11. The first extension platform 111 extends away from the responsive pad 20. The first extension platform 111 is hollow and forms a partial communicating cavity 40. In this way, the first extension platform 111 is used to communicate with the space inside the refrigerator compartment, and the hollow first extension platform 111 forms a narrow channel, which makes the communicating cavity 40 respond more quickly and accurately to the air pressure inside the refrigerator compartment.

[0039] Furthermore, a second extension platform 121 is constructed on the fixed base 12. The second extension platform 121 extends in a direction away from the response pad 20 and communicates with the communicating cavity 40 formed in the first extension platform 111. In this way, the fixed base 12 can improve the connection stability with the base 11 through the second extension platform 121, and cooperate with the base 11 to form the communicating cavity 40, maintaining the sensitivity to the pressure response of the communicating cavity 40.

[0040] Specifically, in this embodiment, the first extension platform 111 is located on the axis of the base 11, and the second extension platform 121 is located on the axis of the fixed seat 12. The first extension platform 111 and the second extension platform 121 are coaxially arranged, and the outer peripheral wall of the second extension platform 121 is engaged with the inner wall of the first extension platform 111, thereby improving the connection stability between the fixed seat 12 and the base 11.

[0041] The outer edge of the opening of the second extension platform 121 is chamfered, which makes it easier to assemble the fixing seat 12 into the base 11 during assembly.

[0042] Furthermore, the inner wall of the mounting base 12 has a step 122, and the responsive pad 20 abuts against the step 122; and / or, at least one buckle 123 is provided on the outer periphery of the mounting base 12, and at least one slot 131 is provided on the cover 13, with the buckle 123 correspondingly engaging with the slot 131. Thus, the step 122 increases the contact area between the mounting base 12 and the responsive pad 20, making the installation of the responsive pad 20 more stable. The engagement of the buckle 123 and the slot 131 allows for a detachable connection between the mounting base 12 and the cover 13, while ensuring a stable connection between the two.

[0043] Preferably, in this embodiment, four buckles 123 are evenly spaced on the outer peripheral wall of the fixing base 12, and the cover 13 has four slots 131 corresponding to the four buckles 123, so that the connection with the fixing base 12 has a limiting effect in multiple directions.

[0044] The cover 13 has a mounting section 132 extending outward in the radial direction. Multiple connecting holes 133 are provided on the mounting section 132, and multiple connectors for connecting to the base 11 pass through the connecting holes 133. In this way, the mounting section 132 increases the connection area between the cover 13 and the base 11. The addition of connectors to fix the cover 13 ensures the connection strength between the cover 13 and the base 11. Since the base 11 is embedded in the refrigerator body 200, the connection between the cover 13 and the base 11 stabilizes the installation position of the entire refrigerator door opening trigger structure 100, preventing positional displacement that could cause inaccurate responses to pressure changes within the refrigerator compartment.

[0045] Specifically, in this embodiment, the connector can be configured as a screw or bolt or similar structure.

[0046] This utility model also provides a refrigerator, including the refrigerator door opening trigger structure 100 as described above and a refrigerator body 200. The refrigerator body 200 has a compartment, and the refrigerator door opening trigger structure 100 is installed on the top of the refrigerator body 200 and communicates with the compartment.

[0047] Compared with the prior art, this utility model replaces the traditional displacement sensor triggering method with a pressure sensor triggering method that has lower precision requirements for parts. The response pad 20 can move or deform in response to the user pressing the refrigerator door and trigger the circuit board 30. The circuit board 30 causes the refrigerator automatic switch device to start operating through an electrical signal.

[0048] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0049] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A refrigerator door opening trigger structure installed to a refrigerator cabinet (200), characterized in that, include: A base assembly (10) for connecting to the refrigerator body (200); A responsive pad (20) is installed inside the base assembly (10). The responsive pad (20) and the base assembly (10) cooperate to form a communicating cavity (40), which communicates with a compartment inside the refrigerator body (200). A circuit board (30) is installed in the base assembly (10) and located on the side of the response pad (20) away from the communicating cavity (40). The circuit board (30) is connected to the base assembly (10) and is electrically connected to the refrigerator automatic door opening and closing device. The responsive pad (20) is configured to trigger the circuit board (30) in response to changes in air pressure within the room. 2.The refrigerator door opening trigger structure according to claim 1, characterized in that, A sealing element (50) is provided on the outer periphery of the response gasket (20), the inner side of the sealing element (50) is connected to the response gasket (20), and the outer side of the sealing element (50) abuts against the base assembly (10). 3.The refrigerator door opening trigger structure according to claim 2, characterized in that, The inner side of the seal (50) is provided with a sealing groove, and the response gasket (20) is embedded in the sealing groove. 4.The refrigerator door opening trigger structure according to claim 1, characterized by, The response pad (20) has a first boss (21) protruding on the side facing the circuit board (30); and / or, The circuit board (30) has a second protrusion (31) protruding on the side facing the response pad (20), and the second protrusion (31) is coaxially arranged with the first protrusion (21). 5.The door opening trigger structure of a refrigerator according to claim 1, characterized in that, The base assembly (10) includes a base (11), a fixing seat (12), and a cover (13). The base (11) is used to connect with the refrigerator body (200). The fixing seat (12) abuts against the base (11). The cover (13) covers the outside of the fixing seat (12) and is connected to the base (11).

6. The refrigerator door opening triggering structure according to claim 5, characterized in that, The response pad (20) is connected to the fixed base (12), and a first extension platform (111) is constructed on the base (11). The first extension platform (111) extends in a direction away from the response pad (20), and the first extension platform (111) is hollow and forms part of the communicating cavity (40). 7.The refrigerator door opening trigger structure according to claim 6, characterized in that, The fixed base (12) is provided with a second extension platform (121), which extends in a direction away from the response pad (20) and communicates with the communication cavity (40) formed in the first extension platform (111). 8.The refrigerator door opening trigger structure according to claim 5, characterized by, The inner wall of the fixing seat (12) has a step (122), and the responsive pad (20) abuts against the step (122); and / or, At least one buckle (123) is provided on the outer periphery of the fixing base (12), and at least one slot (131) is provided on the cover (13), and the buckle (123) is correspondingly engaged with the slot (131). 9.The refrigerator door opening trigger structure according to claim 5, characterized by, The cover (13) has a mounting section (132) extending outward in the radial direction, and a plurality of connecting holes (133) are provided on the mounting section (132), and a plurality of connectors connected to the base (11) are passed through the connecting holes (133).

10. A refrigerator characterized by comprising: Includes a refrigerator door opening trigger structure as described in any one of claims 1-9 and a refrigerator body (200), wherein the refrigerator body (200) has a compartment, and the refrigerator door opening trigger structure is installed on the top of the refrigerator body (200) and communicates with the compartment.

Images