Refrigerator capable of automatically opening and closing door
By incorporating a trigger unit and electromagnet into the refrigerator door, the automatic door opening and closing design solves the problem of loose closing or excessive noise caused by the torsion spring self-locking mechanism, thus achieving smooth closing of the refrigerator door and structural protection.
Patent Information
- Application Number
- CN202520055125.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-09
- Publication Date
- 2025-12-26
- Estimated Expiration
- 2035-01-09
AI Technical Summary
Existing refrigerators have problems with their freezer compartment doors. Due to the resistance caused by the torsion spring self-locking mechanism, the doors may not close tightly or may make a lot of noise when closing, which can easily lead to structural damage.
The door adopts an automatic opening and closing design. By setting a trigger unit and an electromagnet on the door body, the electromagnet is controlled by an electrical signal to attract the push rod assembly, so as to realize the automatic closing of the door and avoid closing noise and structural damage.
It enables the refrigerator door to close automatically, avoiding excessive closing noise and structural damage from impacts, while also preventing gaps from being left when the door is not closed tightly.
Smart Images
Figure CN223726697U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of refrigerator, especially an automatic opening and closing door refrigerator. BACKGROUND
[0002] For the refrigerator with upper and lower distribution of refrigerating and freezing chambers and the opposite opening door of the refrigerating chamber, a turnover beam is generally provided to ensure the heat insulation of the door gap. The turnover beam usually contains a torsional spring due to the need of self-locking in the closed state, which makes the refrigerating door have a certain resistance when it is closed due to the existence of the torsional spring. Therefore, if the closing force is too small, the refrigerator door is easy to be not closed, and the gap is left. If the closing force is too large, noise is easy to be caused, and the structure is also easy to be damaged. SUMMARY
[0003] In view of the above technical problems, the utility model provides an automatic opening and closing door refrigerator.
[0004] An automatic opening and closing door refrigerator comprises a cabinet, a door body rotatably connected with the cabinet, and a push rod assembly connected with the cabinet and capable of extending or retracting relative to the cabinet, and an end of the push rod assembly away from the cabinet abuts against the door body. A trigger unit and an electromagnet are arranged on the door body. The electromagnet is electrically connected with the trigger unit. The trigger unit can send an electric signal in response to the position of the door body, and control the electromagnet to switch between the energized state and the de-energized state through the electric signal. The electromagnet can attract the end of the push rod assembly abutting against the door body in the energized state.
[0005] In this way, when the push rod assembly extends relative to the cabinet, it abuts against the door body and opens the door body. When the door body needs to be closed, the user only needs to push the door body to contact the end of the push rod assembly extending out, the trigger unit sends an electric signal to control the electromagnet to enter the energized state, and the electromagnet in the energized state is adsorbed with the push rod assembly, so that the door body and the push rod assembly are connected together. Therefore, when the push rod assembly retracts, it can drive the door body to close, thereby realizing the automatic closing action of the refrigerator, avoiding the problem of excessive closing noise and causing structural damage due to collision, and preventing the problem of not closing tightly and leaving a gap.
[0006] In one of the embodiments, the trigger unit comprises a magnetic sensor and a door magnet. One of the magnetic sensors is mounted on the cabinet, and the other is mounted on the door body. The magnetic sensor can detect the distance between the door magnet and the magnetic sensor.
[0007] In one of the embodiments, the push rod assembly and the magnetic sensor are arranged on the top of the cabinet, and the push rod assembly is closer to the middle of the width direction of the cabinet than the magnetic sensor.
[0008] In one of the embodiments, the top of the box is configured with a clamping seat, and the magnetic sensor is embedded in the clamping seat.
[0009] In one of the embodiments, the door body is configured with a mounting seat, which is arranged corresponding to the end of the push rod assembly abutting against the door body, and the electromagnet is clamped in the mounting seat.
[0010] In one of the embodiments, the electromagnet is arranged in a circular shape, and the mounting seat is correspondingly configured with a circular mounting groove, and the electromagnet is embedded in the mounting groove.
[0011] In one of the embodiments, the mounting seat comprises a plurality of seat bodies, and the seat bodies are arranged around the mounting groove with gaps between adjacent seat bodies.
[0012] In one of the embodiments, the box is provided with a pressing sensor, which extends towards the door body and abuts against the door body, and is configured to be triggered in response to the pressing of the door body by the human body and control the extension of the push rod assembly.
[0013] In one of the embodiments, the push rod assembly comprises a push rod and a power source, the power source is connected with the push rod to drive the extension or retraction of the push rod, and the power source is arranged at an angle with the push rod.
[0014] In one of the embodiments, the door body is provided with two doors, which are respectively rotationally connected to the two sides of the box in the width direction, and the push rod assembly and the trigger unit are both provided with two and are symmetrically arranged relative to the center line of the door body.
[0015] Compared with the prior art, the utility model discloses a refrigerator with automatic opening and closing door, which comprises a box body, a door body, a push rod assembly and a trigger unit, the door body is rotationally connected to the box body, the push rod assembly is arranged on the door body, and the trigger unit is arranged on the door body and is connected with the push rod assembly. BRIEF DESCRIPTION OF DRAWINGS
[0016] Figure 1 The structure diagram of one of the embodiments of the refrigerator with automatic opening and closing door provided by the utility model is shown.
[0017] Figure 2 Part structure schematic view of one of the embodiments of the automatic switch door refrigerator provided by the utility model;
[0018] Figure 3 For Figure 2 The partial close-up view of A in the figure;
[0019] Figure 4 Structure schematic view of hiding one door body of one of the embodiments of the automatic switch door refrigerator provided by the utility model;
[0020] Figure 5 For Figure 4 The partial close-up view of B in the figure;
[0021] Figure 6 Part structure schematic view of hiding the installation box of one of the embodiments of the automatic switch door refrigerator provided by the utility model;
[0022] Figure 7 For Figure 6 The partial close-up view of C in the figure;
[0023] Figure 8 Part structure close-up view of one of the embodiments of the automatic switch door refrigerator provided by the utility model.
[0024] The meanings of the symbols in the figure are as follows:
[0025] 100, automatic switch door refrigerator; 10, box body; 11, hinge; 12, installation box; 13, clamping seat; 20, door body; 21, electromagnet; 22, installation groove; 23, mounting seat; 231, seat body; 30, push rod assembly; 31, push rod; 32, power source; 40, trigger unit; 41, magnetic sensor; 42, door magnet; 50, pressing sensor. Specific implementation
[0026] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation of the present application will be described in detail below. In the following description, a lot of specific details are set forth in order to fully understand the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the spirit of the present application, so the present application is not limited by the specific embodiments disclosed below.
[0027] It should be noted that when an element is referred to as being "on" or "connected to" another element, it can be directly on or connected to the other element or intervening elements can be present. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.
[0028] In addition, the terms "first", "second", etc. are used herein only to describe various elements, and are not used to denote or imply relative importance or a number of the indicated elements. Thus, a feature with a "first", "second" designation can explicitly or implicitly include at least one of the feature. In the description of the present application, the meaning of "a plurality" is at least two, for example, two, three, etc., unless otherwise explicitly specified and limited.
[0029] In the present application, unless otherwise explicitly specified and limited, the "on", "under", "above" and "over" of a first feature to a second feature can be that the first feature is directly in contact with the second feature, or the first feature is indirectly in contact with the second feature through an intermediate medium. Moreover, the "on", "above" and "over" of a first feature to a second feature can be that the first feature is directly above or obliquely above the second feature, or only indicates that the first feature is horizontally higher than the second feature. The "under", "below" and "under" of a first feature to a second feature can be that the first feature is directly below or obliquely below the second feature, or only indicates that the first feature is horizontally lower than the second feature.
[0030] Unless otherwise defined, all technical and scientific terms used in the specification of the present application have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs. The terms used in the specification of the present application are only for the purpose of describing specific embodiments and are not intended to limit the present application. The term "and / or" used in the specification of the present application includes any and all combinations of one or more of the associated listed items.
[0031] Please refer to Figures 1-8 The utility model provides a kind of automatic switch door refrigerator 100, the position of door body 20 can be judged by triggering unit 40, and let electromagnet 21 be energized together with push rod assembly 30 adsorption, realize door closing with the retraction of push rod assembly 30, avoid the problem that human force closes door will leave seam or noise is too large.
[0032] The automatic switch door refrigerator 100 comprises a cabinet 10, a door body 20 and a push rod assembly 30, the door body 20 is rotatably connected with the cabinet 10, preferably through a hinge 11, the push rod assembly 30 is connected with the cabinet 10 and can extend or retract relative to the cabinet 10, and an end of the push rod assembly 30 away from the cabinet 10 abuts against the door body 20; wherein the door body 20 is provided with a trigger unit 40 and an electromagnet 21, the electromagnet 21 is electrically connected with the trigger unit 40, the trigger unit 40 can send an electric signal in response to the position of the door body 20, and control the electromagnet 21 to switch between the power-on state and the power-off state through the electric signal, and the electromagnet 21 can attract the end of the push rod assembly 30 abutting against the door body 20 in the power-on state.
[0033] In this way, when the push rod assembly 30 extends relative to the cabinet 10, it can abut against the door body 20 and open the door body 20, and the trigger unit 40 can send an electric signal according to the position of the door body 20, when the door body 20 needs to be closed, the user only needs to push the door body 20 to contact the end of the push rod assembly 30 extending, the trigger unit 40 sends an electric signal to control the electromagnet 21 to enter the power-on state, the electromagnet 21 in the power-on state is adsorbed with the push rod assembly 30, so that the door body 20 is connected with the push rod assembly 30, and thus the push rod assembly 30 can drive the door body 20 to close when it retracts, thereby realizing the automatic closing action of the refrigerator, avoiding the problem of too large closing noise and causing structural damage due to collision, and preventing the problem of leaving a gap when closing the door.
[0034] Specifically, the trigger unit 40 comprises a magnetic sensor 41 and a door magnet 42, one of the magnetic sensors 41 is installed on the cabinet 10, and the other is installed on the door body 20, and the magnetic sensor 41 can detect the distance between the door magnet 42 and the magnetic sensor 41. In this way, the magnetic sensor 41 can determine whether the door body 20 is in place based on the distance between the door magnet 42 and the magnetic sensor 41, so as to switch the electromagnet 21 between the power-on state and the power-off state.
[0035] In other embodiments, the trigger unit 40 can also be other structures capable of determining the state of the door body 20. For example, the trigger unit 40 is provided as a photoelectric sensor or a distance sensor, which detects the distance between the door body 20 and the cabinet 10 to determine the position of the door body 20, thereby controlling the electromagnet 21 to be powered on or powered off.
[0036] In the present embodiment, the magnetic sensor 41 is connected with the cabinet 10, and the door magnet 42 is installed on the door body 20. In other embodiments, the positions of the two can be interchanged.
[0037] The push rod assembly 30 and the magnetic sensor 41 are arranged on the top of the cabinet 10, and the push rod assembly 30 is closer to the middle of the cabinet 10 in the width direction than the magnetic sensor 41. In this way, the position where the push rod assembly 30 abuts against the door body 20 is far from the rotation axis direction of the door body 20, so the force arm is longer, and thus the push force required for the push rod assembly 30 to push open the door body 20 is smaller, and the load on the door body 20 is also smaller, which can save energy consumption and reduce damage to the structure of the door body 20.
[0038] Further, the top of the cabinet 10 is configured with a clamping seat 13, and the magnetic sensor 41 is embedded in the clamping seat 13. In this way, the installation of the magnetic sensor 41 is facilitated, and the problem of displacement of the magnetic sensor 41 during frequent opening and closing of the refrigerator is prevented, thereby causing inaccurate judgment of the state of the door body 20.
[0039] In addition to the positioning and installation of the magnetic sensor 41, the utility model also configures a mounting seat 23 on the door body 20 to position and install the electromagnet 21, the mounting seat 23 is arranged corresponding to the end of the push rod assembly 30 abutting against the door body 20, and the electromagnet 21 is clamped in the mounting seat 23. In this way, the mounting seat 23 improves the accuracy and stability of the installation position of the electromagnet 21, ensures that the electromagnet 21 will not fall off, and has high connection strength.
[0040] Preferably, the electromagnet 21 is arranged in a circular shape, the mounting seat 23 is correspondingly provided with a circular mounting groove 22, and the electromagnet 21 is embedded in the mounting groove 22. In this way, the electromagnet 21 can be installed in the mounting groove 22 at any angle along the axial rotation, which facilitates assembly and is simpler to process.
[0041] The mounting seat 23 includes a plurality of seat bodies 231, the seat bodies 231 surround to form the mounting groove 22, and gaps are provided between adjacent seat bodies 231. In this way, due to the existence of the gap between the adjacent seat bodies 231, deformation avoidance occurs, thereby facilitating the installation of the electromagnet 21 into the mounting groove 22.
[0042] In the embodiment, the seat bodies 231 are arranged in three, and each supports the electromagnet 21 in three directions, so as to improve the limiting effect of the electromagnet 21.
[0043] The cabinet 10 is provided with a pressing sensor 50, the pressing sensor 50 extends towards the door body 20, abuts against the door body 20, and is configured to be triggered in response to the pressing of the human body on the door body 20, and control the push rod assembly 30 to extend. In this way, the user only needs to press the door body 20, and the pressing sensor 50 can detect that the door body 20 receives the pressing, and send an opening signal to control the push rod assembly 30 to extend and abut against the door body 20 to push open the door body 20, thereby completing the automatic opening action.
[0044] In other embodiments, the pressing sensor 50 can also be replaced by a touch sensor, which sends an electric signal after being touched by a human body, to control the push rod assembly 30 to extend.
[0045] The push rod assembly 30 comprises a push rod 31 and a power source 32, the power source 32 is connected with the push rod 31 to drive the push rod 31 to extend or retract, and the power source 32 is arranged at an angle with the push rod 31. In this way, the space occupied by the push rod assembly 30 can be reduced, and the space utilization can be improved.
[0046] Preferably, the top of the box body 10 is provided with a mounting box 12, the push rod assembly 30, the magnetic sensor 41 in the trigger unit 40 and the pressing sensor 50 are all arranged in the mounting box 12, and the mounting box 12 protects the various elements therein from the external environment.
[0047] The door body 20 is provided with two doors, which are respectively rotatably connected to the two sides of the width direction of the box body 10, and the push rod assembly 30 and the trigger unit 40 are both provided with two, and are symmetrically arranged with respect to the center line of the door body 20. In this way, the two door bodies 20 can be automatically opened or closed, and the double-door mode is suitable for a box body 10 with a larger volume, and the load on a single push rod 31 is also smaller.
[0048] Compared with the prior art, the utility model discloses a refrigerator door body 20, which is provided with an electromagnet capable of being powered on or powered off and a trigger unit 40 for controlling the on-off state of the electromagnet. The trigger unit 40 can send an electric signal according to the position of the door body 20. When the door body 20 needs to be closed, the user only needs to push the door body 20 to contact the end of the push rod assembly 30, and the trigger unit 40 sends an electric signal to control the electromagnet 21 to enter the powered-on state. The electromagnet 21 in the powered-on state is adsorbed with the push rod assembly 30, so that the door body 20 and the push rod assembly 30 are connected together. Therefore, the push rod assembly 30 can drive the door body 20 to close when it is retracted, so as to realize the automatic closing action of the refrigerator, avoid the problem of too large closing noise and structural collision damage, and prevent the problem of loose closing.
[0049] The technical features of the above-described embodiments can be combined arbitrarily. To make the description concise, all possible combinations of the technical features in the above-described embodiments are not described, but as long as the combinations of the technical features do not exist, they should be considered as the scope of the description.
[0050] The above-described embodiments only express several implementation manners of the utility model, the description is more specific and detailed, but can not therefore be understood as the limitation of the utility model patent range. It should be pointed out that for ordinary skilled person in the art, without departing from the utility model concept, several modifications and improvements can be made, which belong to the protection range of the utility model. Therefore, the protection range of the utility model patent should be subject to the appended claims.
Claims
1. An automatic door-opening refrigerator, characterized in that, include: Box (10); The door (20) is rotatably connected to the box (10); A push rod assembly (30) is connected to the housing (10) and can extend or retract relative to the housing (10), and one end of the push rod assembly (30) away from the housing (10) abuts against the door (20); The door body (20) is provided with a trigger unit (40) and an electromagnet (21). The electromagnet (21) is electrically connected to the trigger unit (40). The trigger unit (40) can emit an electrical signal in response to the position of the door body (20) and control the electromagnet (21) to switch between a powered-on state and a powered-off state through the electrical signal. The electromagnet (21) can attract the end of the push rod assembly (30) that abuts against the door body (20) in the powered-on state.
2. The automatic door-opening refrigerator according to claim 1, characterized in that, The triggering unit (40) includes a magnetic sensor (41) and a door magnet (42). One of the magnetic sensors (41) is installed in the housing (10) and the other is installed in the door (20). The magnetic sensor (41) can detect the distance between the door magnet (42) and the magnetic sensor (41).
3. The automatic door-opening refrigerator according to claim 2, characterized in that, The push rod assembly (30) and the magnetic sensor (41) are both located on the top of the housing (10), and the push rod assembly (30) is closer to the middle of the housing (10) in the width direction than the magnetic sensor (41).
4. The automatic door-opening refrigerator according to claim 3, characterized in that, The top of the housing (10) is provided with a snap-fit seat (13), and the magnetic sensor (41) is embedded in the snap-fit seat (13).
5. The automatic door-opening refrigerator according to claim 1, characterized in that, The door body (20) is provided with a mounting base (23), which is corresponding to the end of the push rod assembly (30) that abuts against the door body (20). The electromagnet (21) is snapped into the mounting base (23).
6. The automatic door-opening refrigerator according to claim 5, characterized in that, The electromagnet (21) is circular, and the mounting base (23) has a corresponding circular mounting groove (22), in which the electromagnet (21) is embedded.
7. The automatic door-opening refrigerator according to claim 6, characterized in that, The mounting base (23) includes a plurality of seats (231), which surround to form the mounting groove (22), and the adjacent seats (231) are spaced apart.
8. The automatic door-opening refrigerator according to claim 1, characterized in that, A pressure sensor (50) is provided on the housing (10), the pressure sensor (50) extends toward the door (20) and abuts against the door (20), and is configured to be triggered in response to human pressure on the door (20) and control the extension of the push rod assembly (30).
9. The automatic door-opening refrigerator according to claim 1, characterized in that, The push rod assembly (30) includes a push rod (31) and a power source (32). The power source (32) is connected to the push rod (31) to drive the push rod (31) to extend or retract, and the power source (32) and the push rod (31) are set at an angle.
10. The automatic door-opening refrigerator according to claim 1, characterized in that, The door (20) has two panels, which are rotatably connected to both sides of the box (10) in the width direction. The push rod assembly (30) and the trigger unit (40) are both provided in twos and are symmetrically arranged with respect to the center line of the door (20).