Air door opening and closing device and refrigeration equipment
The damper opening and closing device driven by an electromagnet solves the problem of limited opening angle of the damper body, realizes multi-state adjustment of the damper, increases the flow of cold air, and improves the cooling and preservation performance of the refrigeration equipment.
Patent Information
- Application Number
- CN202410256993.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-06
- Publication Date
- 2025-09-09
AI Technical Summary
The opening angle of the damper body of the existing refrigeration equipment is limited, resulting in insufficient cold air flow and affecting the cooling effect.
The damper opening and closing device is driven by an electromagnet. The movement of the magnetic element is controlled by turning the electromagnet on and off, which drives the damper body to open and close, realizing the damper's fully open, half-open and closed states, thereby increasing the circulation of cold air.
The opening degree of the air door is increased, the flow rate of cold air is increased, the refrigeration and preservation effects of the refrigeration equipment are improved, the structure is simple and the cost is low.
Smart Images
Figure CN120609176A_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of refrigeration devices, and in particular to a damper opening and closing device and a refrigeration device. Background Art
[0002] Refrigeration equipment such as refrigerators and freezers need to adjust the cooling wind speed intensity during the cooling process. The relevant technology usually adopts a traditional mechanical damper body opening method. After the mechanical damper body is opened, the maximum opening and closing angle is usually small and cannot transmit more cold air. Summary of the Invention
[0003] The present application provides a damper opening and closing device and a refrigeration device to solve at least some of the problems in the related art.
[0004] The present application provides a damper opening and closing device, which is applied to a damper body of a refrigeration device. The damper body is arranged inside a damper box. The device includes:
[0005] Power input terminal, used to connect to the power supply;
[0006] A driving assembly, comprising an electromagnet, wherein the electromagnet is electrically connected to the power input terminal;
[0007] The transmission assembly is connected to the damper body. The transmission assembly includes a magnetic element. The electromagnet is powered on and off to drive the magnetic element to move, thereby driving the damper body to open and close.
[0008] Furthermore, the damper opening and closing device includes a slide rail, and the slide rail connects the electromagnet and the damper housing;
[0009] The transmission assembly includes a sliding member, the magnetic element is arranged on the sliding member, both ends of the sliding member are slidably arranged on the slide rail, and the sliding member is connected to the damper body. When the sliding member slides along the slide rail, it drives the damper body to move.
[0010] Furthermore, the magnetic element includes a sliding iron block.
[0011] Furthermore, the driving assembly also includes a telescopic member, one end of the telescopic member is connected to the electromagnet, and the other end of the telescopic member is connected to the sliding member. When the sliding member slides, the telescopic member telescopes between the electromagnet and the sliding member.
[0012] Furthermore, when the electromagnet is powered off, the telescopic member pushes the sliding member in a direction away from the electromagnet, and the sliding member drives the damper body to open;
[0013] When the electromagnet is energized, the electromagnet attracts the sliding member to slide in a direction close to the electromagnet, and the sliding member drives the damper body to close.
[0014] Furthermore, the telescopic member includes a spring.
[0015] Furthermore, the telescopic member includes a hydraulic element.
[0016] Furthermore, the transmission assembly includes a transmission shaft, which connects the damper body and the sliding member. When the sliding member slides, it drives the transmission shaft to move, thereby driving the damper body to open and close.
[0017] Furthermore, when the electromagnet is powered off, the magnetic element is in the first position and the damper body is in a fully open state;
[0018] When the electromagnet is powered on and the power supply outputs a first voltage, the magnetic element is in a second position due to the suction force of the electromagnet, and the damper body is in a semi-open state; the second position is closer to the electromagnet than the first position;
[0019] When the electromagnet is connected to a power source and the power source outputs a second voltage, the magnetic element is attracted to the electromagnet and the damper body is in a fully open state; the first voltage is lower than the second voltage.
[0020] Furthermore, the damper opening and closing device includes a feedback circuit, which includes a first end and a second end, the first end is connected to the electromagnet, and the second end is connected to the magnetic element; the feedback circuit is used to detect the electrical signal between the first end and the second end, and generate a signal indicating whether the damper opening and closing device is operating normally.
[0021] Furthermore, the damper opening and closing device includes a controller, which is connected to the power input terminal and is used to control the connection and disconnection between the power input terminal and the power supply;
[0022] When detecting whether the damper opening and closing device is operating normally, the controller is used to control the power input end to be connected and disconnected with the power supply at least once respectively; when the controller controls the power input end to be connected with the power supply, the feedback circuit outputs a first signal, and when the controller controls the power input end to be disconnected with the power supply, the feedback circuit outputs a second signal, and the first signal and the second signal are used to determine whether the damper opening and closing device is operating normally.
[0023] The present application provides a refrigeration device, comprising a box, a refrigeration system and the above-mentioned damper opening and closing device, characterized in that the refrigeration system is connected to the box for providing cold air, and the damper opening and closing device is connected to the refrigeration system and the box for controlling the air intake of the cold air.
[0024] The damper opening and closing device provided in the present application includes a power input terminal, a drive component and a transmission component, wherein the drive component includes an electromagnet, and the transmission component includes a magnetic element. By turning the power on and off to the electromagnet, the magnetic element is driven to move, thereby driving the damper body to open and close. By using an electromagnet to drive the damper body to move to achieve a greater degree of opening of the damper body, it is beneficial to increase the circulation of cold air. The structure is simple and the cost is low.
[0025] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS
[0026] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.
[0027] Figure 1 Shown is a schematic diagram of the overall structure of a refrigeration device according to an exemplary embodiment of the present application;
[0028] Figure 2 It is a structural schematic diagram of a damper opening and closing device of an exemplary embodiment of the present application in a damper fully open state;
[0029] Figure 3 It is a structural schematic diagram of a damper opening and closing device of an exemplary embodiment of the present application in a half-open state;
[0030] Figure 4 Shown is a structural schematic diagram of the damper closing state of the damper opening and closing device of an exemplary embodiment of the present application. DETAILED DESCRIPTION
[0031] Exemplary embodiments will be described in detail herein, with examples illustrated in the accompanying drawings. In the following description, when referring to the drawings, identical numerals in different figures represent identical or similar elements, unless otherwise indicated. The embodiments described in the following exemplary embodiments are not intended to represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present application, as detailed in the appended claims.
[0032] The terms used in this application are for the purpose of describing specific embodiments only and are not intended to limit this application. Unless otherwise defined, technical or scientific terms used in this application should have the ordinary meaning understood by a person of ordinary skill in the art to which this application belongs. The terms "first," "second," and similar words used in this specification and claims do not denote any order, quantity, or importance, but are simply used to distinguish different components. Similarly, the terms "a" or "an" and similar words do not denote a limitation of quantity, but rather denote the presence of at least one. The terms "plurality" or "several" mean two or more. Unless otherwise indicated, the terms "front," "rear," "lower," and / or "upper" and similar words are for convenience only and are not intended to limit to a single position or spatial orientation. The terms "include" or "comprising" and similar words mean that the elements or objects listed before "include" or "comprising" include the elements or objects listed after "include" or "comprising" and their equivalents, and do not exclude other elements or objects. The terms "connected" or "connected" and similar words are not limited to physical or mechanical connections and can include electrical connections, whether direct or indirect.
[0033] The terms used in this application are for the purpose of describing specific embodiments only and are not intended to limit this application. As used in this application and the appended claims, the singular forms "a," "an," "the," and "the" are intended to include the plural forms, unless the context clearly indicates otherwise. It should also be understood that the term "and / or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.
[0034] The present application provides a damper opening and closing device and a refrigeration device. The damper opening and closing device and the refrigeration device of the present application are described in detail below with reference to the accompanying drawings. The features of the following embodiments and implementations may be combined with each other unless they conflict.
[0035] Figure 1 The figure shows the overall structure of the refrigeration equipment 11 according to an exemplary embodiment of the present application. Figure 1In the illustrated embodiment, the present application provides a refrigeration device 11, which includes a housing 14, a refrigeration system 15, and a damper opening and closing device 10. The refrigeration system 15 is connected to the housing 14 to provide cold air, and the damper opening and closing device 10 is connected to the refrigeration system 15 and the housing 14 to control the amount of cold air entering. Refrigeration device 11 is used to preserve or freeze fresh food and items that require low-temperature storage. Specifically, refrigeration device 11 includes equipment such as a refrigerator or freezer. The housing 14 of refrigeration device 11 is used to store items, and the refrigeration system 15 is used to provide cold air to the interior of the housing 14 to cool and preserve the stored items. The damper opening and closing device 10 is connected to the refrigeration system 15 and the housing 14 to control the amount of cold air entering the interior of the housing 14. This facilitates controlling the temperature of the interior of the housing 14 and effectively prevents slow cooling of the housing 14 and poor preservation performance due to slow cold air intake.
[0036] Figure 2 Shown is a structural schematic diagram of a damper opening and closing device 10 in a fully open state according to an exemplary embodiment of the present application. Figure 3 Shown is a structural schematic diagram of a damper opening and closing device 10 in a half-open state according to an exemplary embodiment of the present application. Figure 4 The figure shows a schematic structural diagram of the damper opening and closing device 10 in the damper closed state according to an exemplary embodiment of the present application. Figure 2-Figure 4 In the illustrated embodiment, the damper opening and closing device 10 of the refrigeration equipment 11 is disposed within the damper housing 13 and specifically includes a power input 16, a drive assembly 17, and a transmission assembly 19. The power input 16 is used to connect to a power source, which is used to power the damper opening and closing device 10. The drive assembly 17 includes an electromagnet 18, which is electrically connected to the power input 16. When the power input 16 is connected to a power source, the electromagnet 18 is energized. The transmission assembly 19 is connected to the damper body 12 and includes a magnetic element 20. The electromagnet 18 is powered on and off, driving the magnetic element 20 to move, thereby driving the damper body 12 to open and close. By using the electromagnet 18 to turn on and off the power to drive the magnetic element 20 to move, and then drive the damper body 12 to open or close, it is beneficial to solve the problem of limited opening degree of the damper body 12 in the traditional damper body 12 control method, and it is beneficial to increase the opening degree of the damper body 12, and it is beneficial to increase the circulation of cold air in the damper opening and closing device 10, thereby improving the expected cooling and preservation effects of the refrigeration equipment 11.
[0037] In some embodiments, the transmission assembly 19 includes a transmission shaft 25, which connects the damper body 12 and the sliding member 22. When the sliding member 22 slides, the transmission shaft 25 is driven to move, thereby driving the damper body 12 to open and close. In some embodiments, the damper body 12 is relatively fixed to the damper housing 13 by a central axis 23, and the damper body 12 rotates along the central axis 23. The transmission shaft 25 is connected to the surface of the damper body 12 away from the central axis 23 by passing through it to drive the damper body 12 to rotate along the central axis 23. Since the transmission shaft 25 is connected to the sliding member 22, it is further achieved that when the sliding member 22 slides, the damper body 12 is driven to rotate along the central axis 23 to achieve the opening and closing effect of the damper body 12.
[0038] The damper opening and closing device 10 includes a slide rail 21, which connects the electromagnet 18 and the damper housing 13. The transmission assembly 19 includes a sliding member 22, and the magnetic element 20 is provided on the sliding member 22. The two ends of the sliding member 22 are slidably provided on the slide rail 21. The sliding member 22 is connected to the damper body 12. When the sliding member 22 slides along the slide rail 21, it drives the damper body 12 to move. By providing the slide rail 21 between the damper housing 13 and the electromagnet 18 and providing the magnetic element 20 on the sliding member 22, it is convenient for the sliding member 22 to perform an adsorption / distancing movement relative to the electromagnet 18 on the slide rail 21. Both ends of the sliding member 22 are provided on the slide rail 21. In some embodiments, limit members, baffles, etc. can be provided at both ends of the slide rail 21 to facilitate the placement of both ends of the sliding member 22 on the slide rail 21. In some embodiments, the magnetic element 20 includes a sliding iron block that can be attracted by the electromagnet 18 . In other embodiments, the material of the magnetic element 20 further includes but is not limited to nickel, cobalt, and alloys of magnetic materials.
[0039] In some embodiments, the drive assembly 17 further includes a telescopic member 24, one end of the telescopic member 24 being connected to the electromagnet 18, and the other end of the telescopic member 24 being connected to the sliding member 22. When the sliding member 22 slides, the telescopic member 24 performs telescopic motion between the electromagnet 18 and the sliding member 22. The telescopic member 24 is used to connect the electromagnet 18 and the sliding member 22, and the displacement between the electromagnet 18 and the sliding block is changed by switching the stretching and squeezing states of the telescopic member 24. In some embodiments, the telescopic member 24 includes but is not limited to a spring and a hydraulic element. The spring or hydraulic element stores elastic potential energy in the squeezing state and releases the elastic potential energy during the stretching process, which can be used to provide power.
[0040] In some embodiments, the telescopic member 24 can be used to achieve different motion states between the connecting slide 22 and the electromagnet 18 when the electromagnet 18 is in different states. Figure 2In the embodiment shown, when the electromagnet 18 is powered off, the telescopic member 24 pushes the sliding member 22 in a direction away from the electromagnet 18, and the sliding member 22 drives the damper body 12 to open. When the electromagnet 18 is in a power-off state, the electromagnet 18 has no magnetic attraction relative to the sliding member 22, and the telescopic member 24 changes from a compressed state to a stretched state. During the stretching process of the telescopic member 24, a thrust is generated on the sliding member 22 connected thereto, and the sliding member 22 is pushed to move along the slide rail 21 in a direction away from the electromagnet 18. The sliding member 22 then drives the damper body 12 connected thereto to open, and the damper body 12 opens to circulate cold air. Figure 3-Figure 4 As shown, when the electromagnet 18 is energized, the electromagnet 18 attracts the slider 22 to slide toward the electromagnet 18, and the slider 22 drives the damper body 12 to close. When the electromagnet 18 is energized, the electromagnet 18 generates an attractive force on the magnetic element 20 on the slider 22, causing the magnetic element 20 and the slider 22 to move toward the electromagnet 18 together. As the slider 22 moves toward the electromagnet 18, the telescopic member 24 compresses and deforms to accumulate elastic potential energy. In the process of moving toward the electromagnet 18, the slider 22 drives the damper body 12 to close, reducing and ultimately blocking the flow of cold air.
[0041] In some embodiments, as Figure 2 As shown, when the electromagnet 18 is de-energized, the magnetic element 20 is in the first position 40, and the damper body 12 is in the fully open state. When the electromagnet 18 is de-energized, the magnetic element 20 moves relatively away from the electromagnet 18, driving the drive shaft 25 connected thereto to rotate the damper body 12 along the central axis 23. The damper body 12 rotates along the central axis 23 until it is fully open, at which point cold air can flow through the damper body 12 to the greatest extent possible.
[0042] In other cases, such as Figure 3 As shown, when the electromagnet 18 is connected to a power source and the power source outputs a first voltage, the magnetic element 20 is attracted by the electromagnet 18 to a second position 26, and the damper body 12 is in a semi-open state. The second position 26 is closer to the electromagnet 18 relative to the first position 40. When the operator connects the power source with the first voltage output to the electromagnet 18, the power source outputs a low voltage to the electromagnet 18. After the electromagnet 18 is energized, a certain suction force is generated on the magnetic element 20. Due to the low voltage of the power source, the suction force is relatively small, and the magnetic element 20 cannot contact and be attracted by the electromagnet 18, causing the slider 22 to move to the middle position of the slide rail 21, thereby driving the transmission shaft 25 to rotate relative to the central axis 23, driving the damper body 12 to rotate to a semi-open state. At this time, cold air can flow through the damper body 12 at a moderate level to provide a cooling environment.
[0043] In other cases, such as Figure 4 As shown, when the electromagnet 18 is connected to a power source and the power source outputs a second voltage, the magnetic element 20 engages with the electromagnet 18, and the damper body 12 is in a fully open state; the first voltage is less than the second voltage. When an operator connects a power source with a first output voltage to the electromagnet 18, the power source outputs a high voltage to the electromagnet 18. When the electromagnet 18 is energized, it generates an attractive force on the magnetic element 20. Due to the high voltage connected to the power source, the attractive force is relatively large. Under the action of the attractive force, the magnetic element 20 contacts and is attracted to the electromagnet 18. The slider 22 moves along the slide rail 21 until it contacts the electromagnet 18, thereby driving the transmission shaft 25 to rotate relative to the central axis 23 of the damper body 12, and driving the damper body 12 to a fully closed state. At this point, cold air cannot flow through the damper body 12.
[0044] As described in the above three embodiments, by connecting the electromagnet 18 to power supplies of different voltages or not connecting to power, the opening degree of the damper body 12 is regulated, thereby indirectly regulating the cooling temperature inside the box 14 of the refrigeration equipment 11.
[0045] In some embodiments, the damper opening and closing device 10 includes a feedback circuit 27, comprising a first end 28 and a second end 29. The first end 28 is connected to the electromagnet 18, and the second end 29 is connected to the magnetic element 20. The feedback circuit 27 is configured to detect an electrical signal between the first end 28 and the second end 29, generating a signal indicating whether the damper opening and closing device 10 is operating normally. The feedback circuit 27 can be used to diagnose whether the damper opening and closing device 10 is operating normally. More specifically, when the electromagnet 18 and the magnetic element 20 are in contact and adsorbed, the first end 28 and the second end 29 of the feedback circuit 27 are connected, forming a closed loop. At this point, an electrical signal indicating that the first end 28 and the second end 29 are connected is generated. When the electromagnet 18 and the magnetic element 20 are relatively separated, the first end 28 and the second end 29 are also relatively separated, and the feedback circuit 27 is open. At this point, the electrical signal detected between the first end 28 and the second end 29 is a signal indicating that the first end 28 and the second end 29 are disconnected.
[0046] In some embodiments, the damper opening and closing device 10 further includes a controller 30, which is connected to the power input 16 and is configured to control the connection and disconnection between the power input 16 and the power source. More specifically, the controller 30 controls the power input 16 to connect to the power source to close the damper body 12, and controls the power input 16 to disconnect from the power source to open the damper body 12.
[0047] When detecting whether the damper opening and closing device 10 is operating normally, the controller 30 is used to control the power input terminal 16 to be connected and disconnected with the power supply at least once respectively; when the controller 30 controls the power input terminal 16 to be connected with the power supply, the feedback circuit 27 outputs a first signal, and when the controller 30 controls the power input terminal 16 to be disconnected from the power supply, the feedback circuit 27 outputs a second signal. The first signal and the second signal are used to determine whether the damper opening and closing device 10 is operating normally. When the controller 30 controls the power input terminal 16 to be connected to the power supply, the first signal output by the feedback circuit 27 indicates that the electromagnet 18 is connected to the magnetic element 20, and the damper body 12 is in a normally closed state. When the controller 30 controls the power input terminal 16 to be disconnected from the power supply, the second signal output by the feedback circuit 27 is used to indicate that the electromagnet 18 is disconnected from the magnetic element 20, and the damper body 12 is in a normally open state. The controller 30 controls the power input terminal 16 to be connected to or disconnected from the power supply at least once, so as to detect whether the electromagnet 18 and the magnetic element 20 can be normally adsorbed and disconnected, and thus can be used to determine whether the damper body 12 is normally closed and opened.
[0048] In some embodiments, the feedback circuit 27 includes a display light and / or a generator connected in series between the first end 28 and the second end 29. When the first end 28 and the second end 29 are connected, forming a closed loop, the display light or the generator is powered on, illuminated, or emits a sound. When the first end 28 and the second end 29 are disconnected, the feedback circuit 27 is disconnected, and the display light or the generator is powered off. An operator can determine whether the damper opening and closing device 10 can close the damper body 12 when powered on, and open the damper body 12 when powered off, by observing whether the display light illuminates when powered on and turns off when powered off, or whether the generator emits a sound when powered on and turns off when powered off, to determine whether the damper opening and closing device 10 is functioning properly.
[0049] Those skilled in the art will readily appreciate other embodiments of the present application after considering the specification and practicing the application disclosed herein. This application is intended to cover any variations, uses, or adaptations of the present application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed herein. The description and examples are to be considered as exemplary only, and the true scope and spirit of the present application are indicated by the following claims.
[0050] It should be understood that the present application is not limited to the exact structures described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present application is limited only by the appended claims.
Claims
1. A damper opening and closing device, characterized in that: A damper body for refrigeration equipment, wherein the damper body is arranged inside a damper housing, and the device comprises: Power input terminal, used to connect to the power supply; A driving assembly, comprising an electromagnet, wherein the electromagnet is electrically connected to the power input terminal; The transmission assembly is connected to the damper body. The transmission assembly includes a magnetic element. The electromagnet is powered on and off to drive the magnetic element to move, thereby driving the damper body to open and close.
2. The damper opening and closing device according to claim 1, characterized in that: The damper opening and closing device includes a slide rail, which connects the electromagnet and the damper housing; The transmission assembly includes a sliding member, the magnetic element is arranged on the sliding member, both ends of the sliding member are slidably arranged on the slide rail, and the sliding member is connected to the damper body. When the sliding member slides along the slide rail, it drives the damper body to move.
3. The damper opening and closing device according to claim 2, characterized in that: The magnetic element includes a sliding iron block.
4. The damper opening and closing device according to claim 2, characterized in that: The driving assembly further comprises a telescopic member, one end of which is connected to the electromagnet, and the other end of which is connected to the sliding member. When the sliding member slides, the electromagnet and the sliding member move in a telescopic manner.
5. The damper opening and closing device according to claim 4, characterized in that: When the electromagnet is powered off, the telescopic member pushes the sliding member in a direction away from the electromagnet, and the sliding member drives the damper body to open; When the electromagnet is energized, the electromagnet attracts the sliding member to slide in a direction close to the electromagnet, and the sliding member drives the damper body to close.
6. The damper opening and closing device according to claim 4, characterized in that: The telescopic member includes a spring; and / or The telescopic member includes a hydraulic element.
7. The damper opening and closing device according to claim 2, characterized in that: The transmission assembly includes a transmission shaft, which connects the damper body and the sliding member. When the sliding member slides, it drives the transmission shaft to move, thereby driving the damper body to open and close.
8. The damper opening and closing device according to claim 1, characterized in that: When the electromagnet is powered off, the magnetic element is in the first position and the damper body is in a fully open state; When the electromagnet is powered on and the power supply outputs a first voltage, the magnetic element is in a second position due to the suction force of the electromagnet, and the damper body is in a semi-open state; the second position is closer to the electromagnet than the first position; When the electromagnet is connected to a power source and the power source outputs a second voltage, the magnetic element is attracted to the electromagnet and the damper body is in a fully open state; the first voltage is lower than the second voltage.
9. The damper opening and closing device according to claim 1, characterized in that: The damper opening and closing device includes a feedback circuit, which includes a first end and a second end, the first end is connected to the electromagnet, and the second end is connected to the magnetic element; the feedback circuit is used to detect the electrical signal between the first end and the second end, and generate a signal indicating whether the damper opening and closing device is operating normally.
10. The damper opening and closing device according to claim 9, characterized in that: The damper opening and closing device includes a controller connected to the power input terminal and used to control the connection and disconnection between the power input terminal and the power supply; When detecting whether the damper opening and closing device is operating normally, the controller is used to control the power input end to be connected and disconnected with the power supply at least once respectively; when the controller controls the power input end to be connected with the power supply, the feedback circuit outputs a first signal, and when the controller controls the power input end to be disconnected with the power supply, the feedback circuit outputs a second signal, and the first signal and the second signal are used to determine whether the damper opening and closing device is operating normally.
11. The damper opening and closing device according to claim 9, characterized in that: The feedback circuit includes an indicator light and / or a generator connected in series between the first end and the second end.
12. A refrigeration device, characterized in that: It comprises a box, a refrigeration system and a damper opening and closing device as described in any one of claims 1 to 11, characterized in that the refrigeration system is connected to the box for providing cold air, and the damper opening and closing device is connected to the refrigeration system and the box for controlling the air intake of the cold air.