Door opening device and refrigeration equipment

By designing a door opening device on the refrigerator door body, the gear transmission mechanism and limiting components are used to achieve stable opening of the door body, and automatically close through the detection mechanism, the problem of the automatic closing speed of the refrigerator door body is solved and the user experience is improved and device life.

CN222231053UActive Publication Date: 2024-12-24HEFEI MIDEA REFRIGERATOR CO LTD +2
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Patent Information

Application Number
CN202420005089.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-01-02
Publication Date
2024-12-24
Estimated Expiration
2034-01-02

AI Technical Summary

Technical Problem

The automatic closing speed of the refrigerator door body is too fast, resulting in the user failing to grasp the door handle in time, resulting in a poor user experience.

Method used

A door opening device is designed, including mounting components, driving mechanism, gear transmission mechanism, actuation components and limiting components. It moves to the door opening position through the gear transmission mechanism, and stays in the door opening position through the limiting component to ensure the opening time of the door body. . The device also includes a detection mechanism and a control component to detect the position of the execution component through the micro switch and the swing rod, and control the driving mechanism to stop working to prevent the door body from closing automatically.

Benefits of technology

It improves the user experience, ensures that the door body can stay stably when opened, avoids the problem of automatic closing, and extends the service life of the door opening device.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of household appliances, and provides a door opening device and refrigeration equipment. According to the door opening device of the embodiment of the utility model, the door opening device comprises a mounting part, a driving mechanism, a gear transmission mechanism, an execution part and a limiting part. The driving mechanism is arranged on the mounting part; the gear transmission mechanism is connected with an output shaft of the driving mechanism; the execution part has a door opening position and a door closing position and is suitable for being in transmission connection with the gear transmission mechanism so as to be driven by the gear transmission mechanism to move to the door opening position; the limiting component is arranged on the installation component and suitable for limiting the execution component to the door opening position. According to the door opening device, the execution component can move to the door opening position through the gear transmission mechanism, it is guaranteed that the execution component can stay at the door opening position through the limiting component, and therefore the opening time of the door body is guaranteed, and the use experience of a user is improved.
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Description

Technical Field

[0001] The utility model relates to the technical field of household appliances, in particular to a door opening device and a refrigeration device. Background Art

[0002] With the development of science and technology, the intelligence of refrigeration equipment has become an important trend. Modern refrigeration equipment, especially refrigerators, are equipped with various intelligent functions to facilitate users' daily use. Among them, the intelligence of refrigerator doors is particularly critical. Many smart refrigerator doors are equipped with sensors and automatic control systems to control the opening and closing of doors. Automatic closing is a major advantage of smart refrigerators, but it can sometimes be inconvenient. For example, in refrigerators with hidden door handles, the door can be lifted to a certain angle to reveal the hidden door handle. However, due to the automatic closing kinetic energy of the refrigerator door, the user may fail to grab the door handle in time, causing the door to close quickly, which brings a poor user experience. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the related art. To this end, the utility model provides a door opening device to solve the defect that the existing refrigerator door automatically closes too fast.

[0004] The utility model also provides a refrigeration device.

[0005] The door opening device according to the first embodiment of the utility model comprises:

[0006] Install components;

[0007] A driving mechanism, arranged on the mounting component;

[0008] A gear transmission mechanism connected to the output shaft of the driving mechanism;

[0009] An actuator having a door-opening position and a door-closing position, wherein the actuator is adapted to be in transmission connection with the gear transmission mechanism so as to move to the door-opening position under the drive of the gear transmission mechanism;

[0010] A limiting component is arranged on the mounting component and is suitable for limiting the execution component at the door opening position.

[0011] According to the door opening device of the embodiment of the utility model, the actuator can be moved to the door opening position through the gear transmission mechanism, and the limiting component ensures that the actuator can stay at the door opening position, thereby ensuring the opening time of the door body and improving the user experience.

[0012] According to one embodiment of the utility model, the limiting component is an elastic component, and when the actuator moves from the door closing position to the door opening position, the actuator squeezes the limiting component; at the door opening position, the limiting component elastically returns to stop the actuator from moving toward the door closing position.

[0013] According to an embodiment of the utility model, there are multiple limiting components, and in the door opening position, at least one limiting component abuts against the end of the execution component.

[0014] According to an embodiment of the utility model, the installation component is provided with a guide rail, the execution component is suitable for sliding on the guide rail, and the limiting component is installed on the bottom wall or the side wall of the guide rail.

[0015] According to an embodiment of the present invention, in the door opening position, the gear transmission mechanism and the actuator are in a critical meshing position.

[0016] According to an embodiment of the utility model, the output gear of the gear transmission mechanism is a toothless gear, and the actuator is provided with a rack structure. In the door opening position, the toothless gear and the rack structure are in a critical meshing position.

[0017] According to an embodiment of the utility model, the gear transmission mechanism includes an output gear assembly, the output gear assembly includes a coaxially arranged output gear and a cam, and the cam includes an arc segment and a sudden change segment;

[0018] The door opening device also includes:

[0019] The detection mechanism includes a micro switch and a rocker arm, wherein the rocker arm is rotatably arranged on the mounting component, and the free end of the rocker arm is connected to the cam. When the actuator moves from the door-opening position to the door-closing position, the free end abuts against the mutation section, the rocker arm abuts against and triggers the micro switch, and the driving mechanism stops.

[0020] According to an embodiment of the present invention, it further comprises a control component, wherein the control component is adapted to control the driving mechanism to stop working according to the triggering of the micro switch.

[0021] According to an embodiment of the present utility model, after a set time has passed since the micro switch was triggered, the control component controls the driving mechanism to drive the execution component to move toward the door closing position.

[0022] The refrigeration device according to the second embodiment of the utility model includes:

[0023] A box body is formed with a refrigeration compartment;

[0024] A door body connected to the box body;

[0025] The door opening device is arranged on the box or the door, and the actuator is adapted to move to the door opening position to push the door to move relative to the box and at least partially open the refrigeration compartment.

[0026] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the utility model or related technologies, the drawings required for use in the embodiments or related technical descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0028] Figure 1 It is a structural schematic diagram of a door opening device provided by an embodiment of the utility model;

[0029] Figure 2 This utility model Figure 1 A schematic diagram of the AA-sectional structure of the door opening device provided in the embodiment.

[0030] Figure 3 It is a structural schematic diagram of a toothless gear and rack structure provided by an embodiment of the utility model in a door open position;

[0031] Figure 4 It is a structural schematic diagram of a toothless gear and a rack structure in a door closing position provided by an embodiment of the utility model.

[0032] Reference numerals:

[0033] 10. Installation components; 11. Guide rails;

[0034] 20. Driving mechanism;

[0035] 30. Gear transmission mechanism; 31. Output gear assembly; 32. Output gear; 33. Cam; 34. Arc segment; 35. Mutation segment;

[0036] 40. Actuator; 41. Rack structure;

[0037] 50. Limiting components;

[0038] 60. Detection mechanism; 61. Micro switch; 62. Rocker;

[0039] 70. Control components. DETAILED DESCRIPTION

[0040] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0041] In the description of the embodiments of the present utility model, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the embodiments of the present utility model. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0042] In the description of the embodiments of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection, wherein the fixed connection can include an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present utility model can be understood according to specific circumstances.

[0043] In the embodiments of the present invention, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0044] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model embodiment. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0045] According to the door opening device of the first embodiment of the utility model, please refer to Figures 1 to 4 The door opening device comprises a mounting component 10, a driving mechanism 20, a gear transmission mechanism 30, an actuator 40 and a limiting component 50. The driving mechanism 20 is arranged on the mounting component 10; the gear transmission mechanism 30 is connected to the output shaft of the driving mechanism 20; the actuator 40 has a door opening position and a door closing position, and the actuator 40 is suitable for being connected to the gear transmission mechanism 30 in a transmission manner so as to move to the door opening position under the drive of the gear transmission mechanism 30; the limiting component 50 is arranged on the mounting component 10 and is suitable for limiting the actuator 40 at the door opening position.

[0046] According to the door opening device of the embodiment of the utility model, the actuator 40 can be moved to the door opening position through the gear transmission mechanism 30, and the limiting component 50 ensures that the actuator 40 can stay at the door opening position, thereby ensuring the opening time of the door body and improving the user experience.

[0047] It should be noted that the door opening device of the utility model can be applied to household appliances provided with a door body. Specifically, the door opening device can be applied to refrigeration equipment, specifically a refrigerator. In the door opening position, the first end of the actuator 40 abuts against the door body and lifts up to a preset opening angle. Alternatively, the actuator 40 is installed on the door body, and in the door opening position, the first end of the actuator 40 abuts against the box body, and drives the door body to lift up to a preset opening angle. Among them, the preset opening angle is less than or equal to the angle at which the door body is completely opened relative to the box body.

[0048] It should be noted that the door opening device of the present invention can open the door body to a smaller preset opening angle. Through the smaller opening angle, the user can operate the refrigerator, for example, find the door handle and then manually open the door body completely.

[0049] Of course, the door opening device of the present invention can also open the door body to a larger preset opening angle, and the door opening device can even directly open the door body completely.

[0050] It is understandable that the actuator 40 is connected to the gear transmission mechanism 30 and moves to the door opening position under the drive of the gear transmission mechanism 30. Through the precise transmission of the gear transmission mechanism 30, the actuator 40 can accurately move to the door opening position, ensuring the stability and accuracy of the door opening. At the same time, the setting of the limiter 50 can ensure that the actuator 40 stays at the door opening position, further ensuring the stable opening of the door. Since the actuator 40 can realize the automatic opening and stable stay of the door, the user does not need to worry about the problem of the door automatically closing when using it, thereby improving the user experience.

[0051] In one embodiment, the installation component 10 is a shell with a receiving space formed inside. The installation component 10, the driving mechanism 20, the gear transmission mechanism 30 and the limiting component 50 are all located in the receiving space, and the execution component 40 can at least partially extend out of the receiving space.

[0052] It is understandable that the multiple components are concentrated in the housing space of the housing, and the structure of the entire door opening device is more compact. In addition, the housing can effectively protect the internal drive mechanism 20, the gear transmission mechanism 30 and the limit component 50, and prevent them from being damaged by the external environment, thereby extending the service life of the door opening device.

[0053] According to an embodiment of the present invention, please refer to Figure 2 The limiting component 50 is an elastic component. When the actuator 40 moves from the door closing position to the door opening position, the actuator 40 squeezes the limiting component 50; in the door opening position, the limiting component 50 elastically returns to stop the actuator 40 from moving toward the door closing position.

[0054] It is understandable that, when the actuator 40 moves from the door closing position to the door opening position, the actuator 40 squeezes the limiting component 50. This squeezing can play a buffering role, reduce the impact and vibration that may be generated by the actuator 40 during the movement, and improve the stability of the entire door opening device.

[0055] When the actuator 40 reaches the door opening position, the limiting component 50 can elastically return to the actuator 40 to prevent the actuator 40 from moving toward the door closing position. This arrangement can ensure that the door body stays stably in the open state and improve the user experience.

[0056] In one embodiment, the mounting component 10 is provided with an escape space when the limiting component 50 is squeezed by the executing component 40. The escape space can ensure that the executing component 40 has enough moving space during the squeezing process, thereby reducing the risk of jamming and damage.

[0057] Of course, the limiting component 50 may also be a flexible protrusion, and the protrusion can be flattened to be approximately flush by providing sufficient squeezing force.

[0058] According to an embodiment of the present invention, there are a plurality of limiting components 50, and in the door opening position, at least one limiting component 50 abuts against the end of the actuator 40. It is understandable that when the number of the limiting component 50 is one, the limiting component 50 can be arranged at the end abutted by the actuator 40 when the actuator 40 moves to the door opening position, which can enhance the stability of the actuator 40 in the open position and prevent it from being moved due to external forces.

[0059] When there are multiple limiting components 50, the multiple limiting components 50 can share the load, reduce the wear and stress of a single limiting component 50, and thus enhance the durability of the entire door opening device. When one of the limiting components 50 is damaged, the other limiting components 50 can still function to ensure that the door body remains stable and open.

[0060] According to an embodiment of the present invention, please refer to Figure 2 The mounting component 10 is provided with a guide rail 11, the actuator 40 is suitable for sliding on the guide rail 11, and the limiting component 50 is installed on the bottom wall or side wall of the guide rail 11. It can be understood that the guide rail 11 can provide the actuator 40 with a stable sliding platform, so that the actuator 40 can accurately slide along the preset track during the movement. The limiting component 50 is installed on the bottom wall or side wall of the guide rail 11, and the structural advantages of the guide rail 11 can be utilized to facilitate the setting and installation of the limiting component 50, ensuring that the stopping effect of the limiting component 50 on the actuator 40 is more reliable and accurate.

[0061] According to an embodiment of the present invention, please refer to Figure 3 , in the door opening position, the gear transmission mechanism 30 and the actuator 40 are at a critical meshing position. It can be understood that the gear transmission mechanism 30 and the actuator 40 are at a critical meshing position means that the gear transmission mechanism 30 and the actuator 40 are in a state of being about to be disengaged. If the drive mechanism 20 continues to drive the gear transmission mechanism 30 to move, the gear transmission mechanism 30 and the actuator 40 are not engaged, the gear transmission mechanism 30 idles, and the actuator 40 does not continue to move outward. If the drive mechanism 20 drives the gear transmission mechanism 30 to move in the reverse direction, the gear transmission mechanism 30 and the actuator 40 are re-engaged.

[0062] Specifically, the critical meshing position may be the position where the end of the rack structure 41 of the actuator 40 meshes with the output gear 32 of the gear transmission mechanism 30. Of course, the critical meshing position may also be achieved in other ways, for example, if the output gear 32 of the gear transmission mechanism 30 is a toothless gear, the critical meshing position may be the position where the edgemost teeth of the toothless gear mesh with the rack structure 41 of the actuator 40.

[0063] It should be noted that the gear transmission mechanism 30 and the actuator 40 are in a critical meshing position. Even if the driving mechanism 20 does not stop in time, the gear transmission mechanism 30 is still moving and the position of the actuator 40 will not be changed, which is beneficial to improving the service life of the door opening device.

[0064] According to an embodiment of the present invention, please refer to Figure 1 The output gear 32 of the gear transmission mechanism 30 is a toothless gear, and the actuator 40 is provided with a rack structure 41. In the door opening position, the toothless gear and the rack structure 41 are in a critical meshing position.

[0065] It should be noted that a toothless gear refers to an incomplete gear. Compared with a complete gear whose tooth profile goes around a circle, a toothless gear only has a continuous partial tooth profile, and the other part has no tooth profile.

[0066] It is understandable that sensors can also be used to monitor the relative position between the gear and the rack. When the last tooth shape of the missing tooth gear meshes with the tooth shape of the rack structure 41 of the actuator 40, the corresponding control logic or mechanism action can be triggered to stop the drive mechanism 20 and no longer output power, thereby ensuring that the actuator 40 does not move outward.

[0067] According to an embodiment of the present invention, please refer to Figure 1 The gear transmission mechanism 30 includes an output gear assembly 31, and the output gear assembly 31 includes a coaxially arranged output gear 32 and a cam 33, and the cam 33 includes an arc segment 34 and a sudden change segment 35; the door opening device also includes: a detection mechanism 60, including a micro switch 61 and a rocker arm 62, the rocker arm 62 is rotatably arranged on the mounting component 10, and the free end of the rocker arm 62 is connected to the cam 33. When the actuator 40 moves from the door opening position to the door closing position, the free end abuts the sudden change segment 35, the rocker arm 62 abuts and triggers the micro switch 61, and the driving mechanism 20 stops.

[0068] It can be understood that the detection mechanism 60 can effectively monitor the position of the actuator 40 through the rocker rod 62. The cam 33 includes an arc segment 34 and a mutation segment 35. When the output gear 32 moves from the arc segment 34 to the mutation segment 35, the free end of the rocker rod 62 abuts against the mutation segment 35. This mutation can trigger the micro switch 61, thereby judging that the actuator 40 is in the door closing position, and the driving mechanism 20 stops, avoiding excessive movement of the actuator 40 when it returns, thereby extending the service life of the door opening device.

[0069] In one implementation, when the actuator 40 moves to the door opening position, the free end abuts against the sudden change section 35, the rocker 62 abuts against and triggers the micro switch 61, and the micro switch 61 triggers the drive mechanism 20 to stop. It can be understood that the sudden change section 35 corresponds to the door opening position, the actuator 40 is in the door opening position, and the drive mechanism 20 stops, so as to avoid the actuator 40 from extending excessively, thereby extending the service life of the door opening device.

[0070] In one embodiment, the cam 33 is provided with two mutation segments 35, one of which corresponds to the door closing position, and the other corresponds to the door opening position. It can be understood that by providing two mutation segments 35 on the cam 33, the position and motion trajectory of the actuator 40 can be controlled more accurately. In the door closing position and the door opening position, the shape and position of the mutation segment 35 can accurately match the motion requirements of the actuator 40. By simplifying the task of controlling the position and motion trajectory of the actuator 40 to two clear mutation segments 35, the design of the door opening device can be simplified. This helps to reduce manufacturing costs and maintenance costs, and improve the simplicity and efficiency of the entire device.

[0071] In one embodiment, the output gear assembly 31 includes an output gear 32 and a plurality of intermediate gears. The intermediate gears can act as a reducer for the drive mechanism 20 , thereby helping to reduce the size and power requirements of the drive mechanism 20 while improving the load capacity of the actuator 40 .

[0072] In one embodiment, the output gear assembly 31 includes a first gear and a second gear coaxially arranged, wherein the first gear is a complete gear, the second gear is a toothless gear, the first gear is connected to the driving mechanism 20, and the toothless gear is meshed with the actuator 40.

[0073] According to an embodiment of the present invention, please refer to Figure 1The door opening device further includes a control component 70, which is adapted to control the driving mechanism 20 to stop working according to the triggering of the micro switch 61. It is understandable that, through the control component 70, the position of the actuator 40 can be accurately controlled according to the triggering signal of the micro switch 61. When the actuator 40 reaches the door closing position, the control component 70 can send a stop signal to the driving mechanism 20 to ensure that the door body stops moving at the correct position, avoid excessive movement of the actuator 40, and extend the service life of the door opening device.

[0074] According to an embodiment of the utility model, after a set time has passed after the micro switch 61 is triggered, the control component 70 controls the driving mechanism 20 to drive the actuator 40 to move toward the door closing position. It can be understood that by delaying the movement of the actuator 40, a smoother and more natural door opening experience can be provided to the user. For example, when the user needs to open the door, even if the door opening device has lifted the door, the user may still need to spend a certain amount of time to find the door handle or complete other operations. The delay control can provide the user with more time to complete these operations.

[0075] In one embodiment, the duration is set to 2 seconds. Of course, the duration can also be set to other values, such as 1 second, 2 seconds, 3 seconds, 4 seconds, 5 seconds, 10 seconds, etc.

[0076] In one embodiment, the door opening device further comprises an elastic component, a first end of which is connected to the mounting component 10 , and a second end of which is connected to the actuator 40 , and is suitable for forming a restoring force for the actuator 40 to move outward.

[0077] It is understandable that when the actuator 40 completes the action of opening the door body, the elastic component can help to automatically close the door body, and when the actuator 40 moves from the door opening position past the limiting component 50 toward the door closing position, the elastic component can provide a restoring force to help the actuator 40 return to the door closing position. At the same time, when the actuator 40 returns to the door closing position, it can absorb and buffer the impact force generated during the closing process.

[0078] According to the second embodiment of the utility model, the refrigeration device comprises a box body, a door body and the above-mentioned door opening device. A refrigeration compartment is formed inside the box body; the door body is connected to the box body; the door opening device is arranged on the box body or the door body, and the actuator 40 is adapted to move to the door opening position to push the door body to move relative to the box body and at least partially open the refrigeration compartment.

[0079] It is understandable that the door body can be covered on the box body to close the refrigeration compartment. Through the design of the door opening device, the user can conveniently control the opening and closing of the door body.

[0080] For ease of understanding, the movement process of the door opening device of the present application is described below in conjunction with a specific embodiment:

[0081] When the refrigeration equipment opening command is issued, the output shaft of the driving mechanism 20 rotates, driving the gear transmission mechanism 30 to rotate, and the output gear 32 of the gear transmission mechanism 30 meshes with the actuator 40. At the same time, the free end of the swing rod 62 leaves the mutation section 35 and abuts against the arc section 34. When the actuator 40 moves to the door opening position, the actuator 40 and the output gear 32 are in the meshing critical position, the driving mechanism 20 stops, the gear transmission mechanism 30 and the actuator 40 no longer continue to move, the actuator 40 will not actively continue to move in the door opening direction, and due to the setting of the limit component 50, the actuator 40 will not actively move in the door closing direction, which can ensure that the actuator 40 stays in the door opening position and ensures the stable opening of the door body. When the designed door opening time of 2-3 seconds is reached, the driving mechanism 20 rotates in the opposite direction, and the gear transmission mechanism 30 drives the actuator 40 to cross the limit component 50 so that the actuator 40 can return to the door closing position.

[0082] Finally, it should be noted that the above implementation modes are only used to illustrate the present invention, rather than to limit the present invention. Although the present invention is described in detail with reference to the embodiments, a person skilled in the art should understand that various combinations, modifications or equivalent replacements of the technical solutions of the present invention do not depart from the spirit and scope of the technical solutions of the present invention, and should be included in the scope of the claims of the present invention.

Claims

1. A door opening device, characterized in that: include: Install components; A driving mechanism, arranged on the mounting component; A gear transmission mechanism connected to the output shaft of the driving mechanism; An actuator having a door-opening position and a door-closing position, wherein the actuator is adapted to be in transmission connection with the gear transmission mechanism so as to move to the door-opening position under the drive of the gear transmission mechanism; A limiting component is arranged on the mounting component and is suitable for limiting the execution component at the door opening position.

2. The door opening device according to claim 1, characterized in that: The limiting component is an elastic component. When the actuator moves from the door-closing position to the door-opening position, the actuator squeezes the limiting component. At the door-opening position, the limiting component elastically returns to stop the actuator from moving toward the door-closing position.

3. The door opening device according to claim 1, characterized in that: There are a plurality of limiting components, and in the door opening position, at least one limiting component abuts against an end of the actuator component.

4. The door opening device according to claim 3, characterized in that: The installation component is provided with a guide rail, the execution component is suitable for sliding on the guide rail, and the limiting component is installed on the bottom wall or the side wall of the guide rail.

5. The door opening device according to claim 1, characterized in that: In the door opening position, the gear transmission mechanism and the actuator are in a critical meshing position.

6. The door opening device according to claim 5, characterized in that: The output gear of the gear transmission mechanism is a toothless gear, and the actuator is provided with a rack structure. In the door opening position, the toothless gear and the rack structure are in a critical meshing position.

7. The door opening device according to any one of claims 1 to 6, characterized in that: The gear transmission mechanism comprises an output gear assembly, wherein the output gear assembly comprises a coaxially arranged output gear and a cam, wherein the cam comprises an arc segment and a sudden change segment; The door opening device also includes: The detection mechanism includes a micro switch and a rocker arm, wherein the rocker arm is rotatably arranged on the mounting component, and the free end of the rocker arm is connected to the cam. When the actuator moves from the door-opening position to the door-closing position, the free end abuts against the mutation section, the rocker arm abuts against and triggers the micro switch, and the driving mechanism stops.

8. The door opening device according to claim 7, characterized in that: It also includes a control component, which is suitable for controlling the driving mechanism to stop working according to the triggering of the micro switch.

9. The door opening device according to claim 8, characterized in that: After the micro switch is triggered and a set time has passed, the control component controls the driving mechanism to drive the execution component to move toward the door closing position.

10. A refrigeration device, characterized in that: include: A box body is formed with a refrigeration compartment; A door body connected to the box body; The door opening device according to any one of claims 1 to 9, wherein the door opening device is arranged on the cabinet or the door, and the actuator is suitable for moving to the door opening position to push the door to move relative to the cabinet and at least partially open the refrigeration compartment.