Driving module, rack and refrigerator
By using a spiral groove to drive the driving module to move the toggle structure in the refrigerator, the problem of insufficient reliability and accuracy of limit switch triggering is solved, and the stable and precise lifting and lowering movement of the shelf is achieved.
Patent Information
- Application Number
- CN202421839652.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-31
- Publication Date
- 2025-06-10
- Estimated Expiration
- 2034-07-31
AI Technical Summary
The trigger reliability and accuracy of limit switches in existing refrigerators are poor, resulting in unstable lifting and lowering movement of the shelf.
The spiral groove of the driving gear drives the toggle structure to move, and the limit switch is set on the moving track of the toggle structure, and the triggering timing of the limit switch is accurately controlled through the design of the length of the spiral groove.
Reliable and precise triggering of limit switches is achieved, ensuring stable and accurate lifting and lowering movement of the shelf, and avoiding impact and vibration caused by inertia.
Smart Images
Figure CN222964269U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of refrigerators, for example, to a drive module, a shelf and a refrigerator. Background Art
[0002] A refrigerator is a refrigeration device that maintains a constant low temperature, used to keep food or other items at a constant low temperature. The core components of a refrigerator include a refrigeration system and a storage box. The refrigeration system can continuously and stably provide a low-temperature environment for the storage box, thereby meeting people's needs for food preservation and storage.
[0003] The related art discloses a refrigerator, which is provided with a lifting shelf. The shelf includes a shelf body, and a motor drives a winding wheel to rotate through a driving gear, and the winding wheel drives the shelf body to rise and fall through a pull rope. A trigger protrusion is provided on one side of the driving gear, and the trigger protrusion is used to trigger a limit switch.
[0004] In the process of implementing the embodiments of the present disclosure, it is found that there are at least the following problems in the related art:
[0005] The structure of the triggering protrusion is relatively rigid, resulting in poor triggering reliability and accuracy of the limit switch.
[0006] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present application, and therefore may include information that does not constitute the prior art known to ordinary technicians in the field. Utility Model Content
[0007] In order to provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. The summary is not an extensive review, nor is it intended to identify key / critical components or delineate the scope of protection of these embodiments, but rather serves as a prelude to the detailed description that follows.
[0008] The embodiments of the present disclosure provide a driving module, a shelf and a refrigerator, which solve the problem of poor triggering reliability and accuracy of a limit switch.
[0009] In some embodiments, the driving module includes:
[0010] The transmission assembly includes a driving gear, and the end surface of the driving gear is provided with a spiral groove;
[0011] The limit assembly comprises a toggle structure and a limit switch; wherein the toggle structure is arranged on one side of the spiral groove and partially extends into the spiral groove;
[0012] Furthermore, when the driving gear rotates, the spiral groove drives the toggle structure to move; wherein the limit switch is arranged on the moving track of the toggle structure to be triggered by the toggle structure.
[0013] The drive module, shelf and refrigerator provided by the embodiments of the present disclosure can achieve the following technical effects:
[0014] Since part of the toggle structure extends into the spiral groove, when the driving gear rotates, the spiral groove can drive the toggle structure to move. Since the limit switch is located on the moving track of the toggle structure, when the toggle structure moves to contact the limit switch, the limit switch is triggered. In addition, the triggering timing of the limit switch can be accurately controlled by designing the length of the spiral groove. For example, the driving gear is used to drive the winding wheel to rotate, and the length of the spiral groove is: the spiral groove can drive the toggle structure to trigger the limit switch only when the winding wheel rotates two circles. In this way, through the clever cooperation of the spiral groove and the toggle structure, the limit switch can be triggered reliably and accurately.
[0015] The above general description and the following description are exemplary and explanatory only and are not intended to limit the present application. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] One or more embodiments are exemplarily described by corresponding drawings, which do not limit the embodiments. Elements with the same reference numerals in the drawings are shown as similar elements, and the drawings do not constitute a scale limitation, and wherein:
[0017] Figure 1 is a schematic diagram of the structure of a shelf provided by an embodiment of the present disclosure;
[0018] Figure 2 is a schematic structural diagram of a winding wheel provided in an embodiment of the present disclosure;
[0019] Figure 3 is a schematic diagram of the structure of a driving module provided by an embodiment of the present disclosure;
[0020] Figure 4 is a schematic structural diagram of a guide member and a guide groove provided in an embodiment of the present disclosure;
[0021] Figure 5 is a schematic diagram of a first position of a toggle member provided in an embodiment of the present disclosure;
[0022] Figure 6 is a schematic diagram of a second position of a toggle member provided in an embodiment of the present disclosure;
[0023] Figure 7 is a schematic diagram of the structure of the spiral groove provided by an embodiment of the present disclosure;
[0024] Figure 8 It is a schematic diagram of the structure of the linkage provided in the embodiment of the present disclosure.
[0025] Reference numerals:
[0026] 100. Electric motor; 110. Driving gear; 111. Spiral groove; 120. Winding wheel; 130. Pulling rope; 131. First rope segment; 132. Second rope segment; 133. Main rope segment; 140. Installation housing
[0027] 200. Poking structure; 210. Linking member; 211. First cylinder; 212. Connecting block; 220. Poking member; 230. Guide member; 231. Guide groove; 240. Limit switch; 241. First switch; 242. Second switch
[0028] 300. Shelf body; 310. Slide rail; 320. Slide block Detailed implementation manner
[0029] In order to be able to understand the features and technical content of the embodiments of the present disclosure in more detail, the implementation of the embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings. The accompanying drawings are for reference and illustration only, and are not intended to limit the embodiments of the present disclosure. In the following technical description, for the sake of explanation, multiple details are provided to provide a full understanding of the disclosed embodiments. However, one or more embodiments can still be implemented without these details. In other cases, well-known structures and devices can be shown in a simplified manner to simplify the drawings.
[0030] The terms "first", "second", etc. in the specification, claims and above-mentioned drawings of the embodiments of the present disclosure are used to distinguish similar objects, and do not have to be used to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so as to describe the embodiments of the present disclosure here. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion.
[0031] In the embodiments of the present disclosure, the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "middle", "outer", "front", "rear", etc. is based on the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe the embodiments of the present disclosure and their embodiments, and are not used to limit that the indicated devices, elements or components must have a specific orientation, or be constructed and operated in a specific orientation. And, in addition to being able to represent an orientation or positional relationship, some of the above terms may also be used to represent other meanings. For example, the term "upper" may also be used to represent a certain attachment relationship or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in the embodiments of the present disclosure can be understood according to specific circumstances.
[0032] In addition, the terms "disposed", "connected", and "fixed" should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present disclosure can be understood according to specific circumstances.
[0033] Unless otherwise stated, the term "plurality" means two or more.
[0034] In the embodiment of the present disclosure, the character " / " indicates that the preceding and following objects are in an "or" relationship. For example, A / B indicates: A or B.
[0035] The term "and / or" is a description of the association relationship between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or, A and B.
[0036] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present disclosure may be combined with each other.
[0037] The present disclosure provides a refrigerator, including a shelf. Figure 1 As shown, the shelf includes a shelf body 300 and a driving module, and the driving module is used to drive the shelf body 300 to move.
[0038] Combination Figure 1-8 As shown, the embodiment of the present disclosure provides a driving module, including a transmission assembly and a limit assembly. The transmission assembly includes a driving gear 110, and a spiral groove 111 is provided on the end surface of the driving gear 110; the limit assembly includes a toggle structure 200 and a limit switch 240; the toggle structure 200 is arranged on one side of the spiral groove 111, and partially extends into the spiral groove 111; and when the driving gear 110 rotates, the spiral groove 111 drives the toggle structure 200 to move; the limit switch 240 is arranged on the moving track of the toggle structure 200, so as to be triggered by the toggle structure 200. Here, the transmission assembly and the limit assembly are both encapsulated in the mounting housing 140 of the driving module.
[0039] In this embodiment, since part of the toggle structure 200 extends into the spiral groove 111, when the driving gear 110 rotates, the spiral groove 111 can drive the toggle structure 200 to move. Since the limit switch 240 is located on the moving track of the toggle structure 200, when the toggle structure 200 moves to contact the limit switch 240, the limit switch 240 is triggered. In addition, the triggering timing of the limit switch 240 can be accurately controlled by designing the length of the spiral groove 111. For example, the driving gear 110 is used to drive the winding wheel 120 to rotate, and the length of the spiral groove 111 is: when the winding wheel 120 rotates two circles, the spiral groove 111 can drive the toggle structure 200 to trigger the limit switch 240. In this way, through the ingenious cooperation between the spiral groove 111 and the toggle structure 200, the limit switch 240 can be reliably and accurately triggered.
[0040] Optionally, the driving module further includes a motor 100 and a controller. The motor 100 is used to drive the driving gear 110 to rotate; the specific transmission structure between the motor 100 and the driving gear 110 is not limited. The controller is electrically connected to the motor 100 and the limit switch 240; the controller is configured to control the motor 100 to stop rotating when the limit switch 240 is triggered.
[0041] In this embodiment, by properly setting the position of the limit switch 240, the motor 100 can be stopped when the toggle structure 200 moves to a preset position. For example, the limit switch 240 is set at one or both ends of the moving track of the toggle structure 200. In this way, the motor 100 is stopped in time when the toggle structure 200 moves to the corresponding position, which can reduce the impact and vibration caused by inertia, and protect the motor 100 and the transmission assembly.
[0042] Alternatively, if Figure 8 As shown, the toggle structure 200 includes a linkage member 210 and a toggle member 220. The first end of the linkage member 210 extends into the spiral groove 111, and the second end thereof is located outside the spiral groove 111; the toggle member 220 is connected to the second end of the linkage member 210, and can contact the limit switch 240 to trigger it.
[0043] In this embodiment, when the driving gear 110 rotates, the spiral groove 111 directly drives the linkage member 210 to move, and the linkage member 210 drives the toggle member 220 to move. Here, the limit switch 240 is located on the moving track of the toggle member 220. When the toggle member 220 moves to contact the limit switch 240, the limit switch 240 is triggered.
[0044] Alternatively, if Figure 3As shown, the toggle structure 200 further includes a guide member 230 and a guide groove 231. The guide member 230 is connected to the second end of the toggle member 220 or the linkage member 210; the extension direction of the guide groove 231 corresponds to the moving track of the toggle structure 200, and the guide member 230 is located in the guide groove 231; and when the spiral groove 111 drives the linkage member 210 to move, the guide member 230 moves along the guide groove 231. Here, the guide member 230 includes the case where the second end of the linkage member 210 is directly used as the guide member 230.
[0045] In this embodiment, the guide member 230 and the guide groove 231 are used to limit the moving track of the toggle member 220. When the driving gear 110 rotates, the spiral groove 111 directly drives the linkage member 210 to move, and the linkage member 210 drives the toggle member 220 to move. At this time, the guide member 230 moves along the extension direction of the guide groove 231. Since the extension direction of the guide groove 231 corresponds to the moving track of the toggle structure 200, the toggle structure 200 can move along the preset moving track, ensuring that the limit switch 240 can be reliably triggered.
[0046] Exemplarily, the guide member 230 is connected to the second end of the linkage member 210, and the guide member 230 is configured as a rectangular parallelepiped. The guide groove 231 is configured as a matching rectangular groove body. In addition, the toggle member 220 is connected to the guide member 230, so that the overall toggle structure 200 is more compact.
[0047] Optionally, the moving track of the toggle structure 200 is a straight line, and the extending direction of the guide groove 231 is arranged along the straight line.
[0048] In this embodiment, since the guide groove 231 extends in a straight line, when the guide member 230 moves along the guide groove 231, it is ensured that the toggle structure 200 always maintains a straight line motion during the movement process, avoiding unnecessary deviation or swing. In addition, the accumulation of errors using linear motion is relatively small, which is conducive to improving the accuracy of movement.
[0049] Optionally, the toggle member 220 has a first position and a second position. Figure 5 As shown, the first position corresponds to the linkage member 210 moving to the outermost end of the spiral groove 111. Figure 6 As shown, the second position corresponds to the linkage member 210 moving to the innermost end of the spiral groove 111 .
[0050] In some embodiments, Figure 7As shown, the outermost end of the spiral groove 111 is close to the edge of the driving gear 110, and the innermost end of the spiral groove 111 is close to the center of the driving gear 110. If the rotation direction of the driving gear 110 is opposite, the spiral groove 111 drives the linkage 210 to move in the opposite direction. When the linkage 210 moves to the outermost end of the spiral groove 111, it is blocked by the end wall at the outermost end of the spiral groove 111 and cannot move outward continuously. At this time, it drives the toggling member 220 to move to the first position; when the linkage 210 moves to the innermost end of the spiral groove 111, it is blocked by the end wall at the innermost end of the spiral groove 111 and cannot move inward continuously. At this time, it drives the toggling member 220 to move to the second position.
[0051] Optionally, the driving gear 110 is used to drive the wire winding wheel 120 to rotate; when the driving gear 110 drives the toggling member 220 to move from the first position to the second position, the number of rotation turns of the wire winding wheel 120 is n, and n≥1.
[0052] In this embodiment, when the driving gear 110 rotates, it drives the wire winding wheel 120 to rotate. Synchronously, the spiral groove 111 drives the linkage 210 to move, and the linkage 210 drives the toggling member 220 to move. Here, the value of n represents that the wire winding wheel 120 rotates at least n turns before the driving gear 110 can move the toggling member 220 from the first position to the second position. Here, the value of n can be selected as 1, 1.5, 2, 2.5, 3, 3.5, 4, 4.5 or 5.
[0053] Exemplarily, n = 2, and the toggling member 220 is initially located at the first position. When the wire winding wheel 120 rotates forward two turns, the driving gear 110 moves the toggling member 220 to the second position.
[0054] Another exemplarily, n = 3, and the toggling member 220 is initially located at the second position. When the wire winding wheel 120 rotates backward three turns, the driving gear 110 moves the toggling member 220 to the first position.
[0055] Optionally, as Figure 5 and Figure 6 shown, the limit switch 240 includes a first switch 241 and a second switch 242. Among them, the first switch 241 corresponds to the first position; the second switch 242 corresponds to the second position; among them, the toggling member 220 is located between the first switch 241 and the second switch 242, and contacts the first switch 241 when moving to the first position and contacts the second switch 242 when moving to the second position.
[0056] In this embodiment, by providing the first switch 241 and the second switch 242 corresponding to the two extreme positions (the first position and the second position) of the toggling member 220 respectively, dual-position limit is achieved. When the toggling member 220 moves to the first position, it comes into contact with the first switch 241, and at this time the first switch 241 is triggered. When the toggling member 220 moves to the second position, it comes into contact with the second switch 242, and at this time the second switch 242 is triggered.
[0057] Optionally, as Figure 8 shown, the linkage member 210 includes a first cylinder 211. The first cylinder 211 serves as the first end of the linkage member 210, and its diameter is less than or equal to the width of the spiral groove 111; moreover, the axis of the first cylinder 211 is perpendicular to the end face of the drive gear 110.
[0058] In this embodiment, since the diameter of the first cylinder 211 is less than or equal to the width of the spiral groove 111, when the first cylinder 211 enters the spiral groove 111, it can be ensured that there is no physical obstruction, and it is beneficial for the spiral groove 111 to drive the first cylinder 211 to move smoothly. The design of the first cylinder 211 with its axis perpendicular to the end face of the drive gear 110 enhances the stability of the toggling structure 200, making the first cylinder 211 not easily deformed or damaged when bearing a load.
[0059] Optionally, the linkage member 210 further includes a connecting block 212. The connecting block 212 serves as the second end of the linkage member 210 and includes a first side face and a second side face; wherein, the first side face is used to connect the first cylinder 211, and the width of the first side face is greater than the width of the spiral groove 111; the second side face is used to connect the toggling member 220.
[0060] In this embodiment, the connecting block 212 is located outside the spiral groove 111 and can be used to connect the toggling member 220 and the guiding member 230. And since the width of the first side face is greater than the width of the spiral groove 111, the connecting block 212 will not enter the spiral groove 111, ensuring the smooth movement of the spiral groove 111 driving the first cylinder 211.
[0061] Exemplarily, as Figure 8 shown, the connecting block 212 is configured in a cylinder shape, referred to as the second cylinder. The top surface of the second cylinder serves as the first side face, and the cylindrical side face of the second cylinder serves as the second side face. And the diameter of the second cylinder serves as the width of the first side face, which is greater than the width of the spiral groove 111.
[0062] Optionally, the driving module is applied to a liftable shelf. The motor 100 drives the wire winding wheel 120 to rotate through the driving gear 110, and the wire winding wheel 120 drives the shelf body 300 to lift by winding or releasing the pulling rope 130. Moreover, when the shelf body 300 is in the lowest position, the toggling member 220 is in the first position and in contact with the first switch 241; when the shelf body 300 is in the highest position, the toggling member 220 is in the second position and in contact with the second switch 242.
[0063] In this embodiment, when the shelf body 300 moves to the lowest position, the first switch 241 is triggered, and the controller controls the motor 100 to stop rotating. When the shelf body 300 moves to the highest position, the second switch 242 is triggered, and the controller controls the motor 100 to stop rotating. In this way, it is possible to avoid damage caused by over-limit movement when the shelf body 300 moves to the extreme position.
[0064] Exemplarily, the shelf body 300 is initially in the lowest position (the toggling member 220 is in the first position), and the wire winding wheel 120 winds the pulling rope 130 to drive the shelf body 300 to rise. When the wire winding wheel 120 winds and rotates 2 turns, the shelf body 300 rises to the highest position. At this time, the toggling member 220 moves to the second position and the second switch 242 is triggered, and the controller controls the motor 100 to stop rotating, thereby preventing the shelf body 300 from rising beyond the limit.
[0065] Another exemplarily, the shelf body 300 is initially in the highest position (the toggling member 220 is in the second position), and the wire winding wheel 120 releases the pulling rope 130 to lower the shelf body 300. When the wire winding wheel 120 releases and rotates 2 turns, the shelf body 300 descends to the lowest position. At this time, the toggling member 220 moves to the first position and the first switch 241 is triggered, and the controller controls the motor 100 to stop rotating, thereby preventing the shelf body 300 from descending beyond the limit.
[0066] No specific limitations are imposed here on the sliding mechanism of the shelf, the structure of the pulling rope 130, the arrangement form of the wire winding wheel 120, etc.
[0067] Optionally, the shelf includes a shelf body 300, a sliding mechanism, and a driving module. As Figure 1As shown, the sliding mechanism includes a slide rail 310, and the shelf body 300 can be raised and lowered along the slide rail 310; the driving module includes a winding wheel 120 and a pull rope 130, and the pull rope 130 includes a main rope segment 133, a first rope segment 131 and a second rope segment 132; wherein, the first end of the main rope segment 133 is connected to the winding wheel 120, the first end of the first rope segment 131 and the first end of the second rope segment 132 are both connected to the second end of the main rope segment 133, and the second end of the first rope segment 131 and the second end of the second rope segment 132 are respectively connected to the two sides of the shelf body 300; and, when the winding wheel 120 rotates, it winds or releases the main rope segment 133, and then synchronously pulls the shelf body 300 up and down through the first rope segment 131 and the second rope segment 132.
[0068] In this embodiment, when the reel 120 rotates and winds the main rope segment 133, the effective length of the main rope segment 133 is shortened. The effective length refers to the length of the unwound portion of the main rope segment 133. When the main rope segment 133 is shortened, the rack body 300 is raised along the slide rail 310 by the synchronous pull rope 130 through the first rope segment 131 and the second rope segment 132 respectively. When the reel 120 rotates and releases the main rope segment 133, the effective length of the main rope segment 133 is extended. When the main rope segment 133 is extended, the rack body 300 slides downward along the slide rail 310 under the action of gravity. Here, the pull rope 130 adopts a three-segment structure, with the main rope segment 133 as the core, and the reel 120 can wind multiple turns of the main rope segment 133, thereby increasing the moving distance of the rack body 300. The first rope segment 131 and the second rope segment 132 serve as two branches, synchronously pulling the rack body 300, thereby improving the stability of the lifting and lowering of the rack body 300.
[0069] Optionally, the first rope segment 131 is connected to the first side of the shelf body 300 via a first fixed pulley, and the second rope segment 132 is connected to the second side of the shelf body 300 via a second fixed pulley; and the first fixed pulley and the second fixed pulley are installed at the same height.
[0070] In this embodiment, since the two fixed pulleys are installed at the same height, it is possible to ensure that the first rope segment 131 and the second rope segment 132 maintain the same tension when pulling the shelf body 300, which is conducive to avoiding the tilting or shaking of the shelf body 300 caused by uneven tension of the rope segments. In addition, since the fixed pulley can smoothly guide the movement of the rope segments, the resistance and friction of the first rope segment 131 and the second rope segment 132 during the lifting process are reduced, which is conducive to improving the lifting efficiency of the shelf body 300.
[0071] Optionally, the winding wheel 120 is arranged above the middle of the first fixed pulley and the second fixed pulley, so that the main rope segment 133, the first rope segment 131 and the second rope segment 132 are in an inverted Y shape.
[0072] In this embodiment, the layout of the storage rack from top to bottom is as follows: a wire reel 120, a first fixed pulley and a second fixed pulley at the same height, and a rack body 300. Moreover, the wire reel 120 is arranged above the middle of the first fixed pulley and the second fixed pulley, having a certain symmetry, so that the tension of the main rope segment 133 can be evenly transmitted to the first rope segment 131 and the second rope segment 132. Moreover, the inverted Y-shaped layout is relatively reasonable, reducing the bending and crossing of the pulling rope 130.
[0073] Optionally, the lengths of the first rope segment 131 and the second rope segment 132 are the same. Here, the design of the same length ensures the synchronization of the lifting of the rack body 300 and prevents the rack body 300 from tilting.
[0074] Optionally, two slide rails 310 are arranged in parallel, and both sides of the rack body 300 are respectively connected to the slide rails 310 through a slider 320, and movable pulleys are provided on both sliders 320; moreover, the first rope segment 131 and the second rope segment 132 are respectively connected to both sides of the rack body 300 through the corresponding movable pulleys.
[0075] In this embodiment, the first rope segment 131 is connected to the corresponding slider 320 through the corresponding movable pulley, and the second rope segment 132 is connected to the corresponding slider 320 through the corresponding movable pulley. In this way, when the wire reel 120 winds the main rope segment 133, the two movable pulleys move upward along the corresponding rope segments respectively, thereby driving the rack body 300 to rise. Moreover, with the force-saving characteristic of the movable pulley, the motor 100 can drive the movement of the rack body 300 with a smaller driving force, which is beneficial to reducing the torque of the motor 100.
[0076] The above description and the drawings fully illustrate the embodiments of the present disclosure so that those skilled in the art can practice them. Other embodiments may include structural and other changes. The embodiments only represent possible variations. Unless explicitly required, the individual components and functions are optional, and the order of operations can vary. Some parts and features of some embodiments can be included in or replaced by parts and features of other embodiments. The embodiments of the present disclosure are not limited to the structures already described and shown in the drawings, and various modifications and changes can be made without departing from its scope. The scope of the present disclosure is only limited by the appended claims.
Claims
1. A driving module, characterized in that: include: The transmission assembly comprises a driving gear (110), wherein the end surface of the driving gear (110) is provided with a spiral groove (111); A limit assembly comprises a toggle structure (200) and a limit switch (240); wherein the toggle structure (200) is arranged on one side of the spiral groove (111) and partially extends into the spiral groove (111); Furthermore, when the driving gear (110) rotates, the spiral groove (111) drives the toggle structure (200) to move; wherein the limit switch (240) is arranged on the moving track of the toggle structure (200) so as to be triggered by the toggle structure (200).
2. The driving module according to claim 1, characterized in that: The toggle structure (200) comprises: A linkage member (210), a first end of which extends into the spiral groove (111) and a second end of which is located outside the spiral groove (111); The toggle member (220) is connected to the second end of the linkage member (210) and can contact the limit switch (240) to trigger it.
3. The driving module according to claim 2, characterized in that: The toggle structure (200) further includes: A guide member (230) connected to the second end of the toggle member (220) or the linkage member (210); A guide groove (231), the extension direction of which corresponds to the moving track of the toggle structure (200), and the guide member (230) is located in the guide groove (231); Furthermore, when the spiral groove (111) drives the linkage member (210) to move, the guide member (230) moves along the guide groove (231).
4. The driving module according to claim 3, characterized in that: The moving track of the toggle structure (200) is a straight line, and the extension direction of the guide groove (231) is arranged along the straight line.
5. The driving module according to any one of claims 2 to 4, characterized in that: The toggle member (220) has a first position and a second position; The first position corresponds to the linkage member (210) moving to the outermost end of the spiral groove (111), and the second position corresponds to the linkage member (210) moving to the innermost end of the spiral groove (111).
6. The driving module according to claim 5, characterized in that: The driving gear (110) is used to drive the winding wheel (120) to rotate; When the driving gear (110) drives the shifting member (220) to move from the first position to the second position, the number of rotations of the winding wheel (120) is n, and n≥1.
7. The driving module according to claim 5, characterized in that: The limit switch (240) comprises: A first switch (241), corresponding to a first position; a second switch (242), corresponding to the second position; The toggle member (220) is located between the first switch (241) and the second switch (242), and contacts the first switch (241) when it moves to the first position, and contacts the second switch (242) when it moves to the second position.
8. The driving module according to any one of claims 2 to 4, characterized in that: The linkage member (210) comprises: A first column (211), serving as a first end of the linkage member (210), having a diameter less than or equal to a width of the spiral groove (111); Furthermore, the axis of the first column (211) is perpendicular to the end surface of the driving gear (110).
9. The driving module according to claim 8, characterized in that: The linkage member (210) further comprises: A connecting block (212), serving as a second end of the linkage member (210), comprises a first side surface and a second side surface; The first side surface is used to connect to the first column (211), and the width of the first side surface is greater than the width of the spiral groove (111); and the second side surface is used to connect to the toggle member (220).
10. The driving module according to any one of claims 1 to 4, characterized in that: Also includes: A motor (100) is used to drive a driving gear (110) to rotate; A controller electrically connected to the motor (100) and the limit switch (240); The controller is configured to control the motor (100) to stop rotating when the limit switch (240) is triggered.
11. A shelf, characterized in that: include: The drive module according to any one of claims 1 to 10; The shelf body (300) is used to drive the shelf body (300) to move.
12. A refrigerator, characterized in that: Comprising the rack as claimed in claim 11.