A refrigerator

Abstract

The application discloses a refrigerator. The refrigerator comprises a refrigerator body, a drawer, a state sensor and a driving assembly. The state sensor is used for acquiring an extreme state of the drawer being opened, and the state sensor comprises a magnetic core and a reed switch. The magnetic core is telescopically mounted on the drawer, and the reed switch is mounted on the refrigerator body; or the reed switch is telescopically mounted on the drawer, and the magnetic core is mounted on the refrigerator body. The driving assembly comprises a motor and a controller. The motor is used for driving the drawer to move towards the refrigerator body or away from the refrigerator body; and the controller is used for acquiring the extreme state of the drawer to control the motor to work. One sensing element of the state sensor of the refrigerator of the application is telescopically mounted on the drawer, which can overcome the technical difficulty that the sensing element on the drawer is far away from another sensing element in the refrigerator when the drawer is opened to the extreme state, so that the extreme state of the drawer being opened can be detected, and the automatic opening and closing of the drawer of the refrigerator can be realized.

Description

Technical Field

[0001] This application relates to the field of household appliance technology, and in particular to a refrigerator. Background Technology

[0002] Currently available products only offer assisted door opening, still requiring manual opening and closing, and cannot achieve fully automatic door opening and closing, resulting in a limited improvement in user experience. Related appliance companies have attempted to develop this function, but due to insufficient technological maturity, there are no plans for subsequent productization. A key technical challenge in implementing automatic drawer door opening lies in effectively detecting when the freezer drawer is fully open. However, due to the drawer's limited travel distance, when the drawer is fully open, the sensor on the drawer is a considerable distance from another sensor inside the refrigerator, making it difficult to detect. Therefore, detecting whether the freezer drawer is fully open is a crucial technical challenge that urgently needs to be addressed to achieve automatic drawer opening in refrigerators. Summary of the Invention

[0003] The purpose of this application is to provide a refrigerator to solve the technical problem existing in the prior art: how to detect whether the freezer drawer is opened to its limit.

[0004] To solve the above-mentioned technical problems, this application adopts the following technical solution:

[0005] This application provides a refrigerator. The refrigerator includes: a refrigerator body; a drawer mounted on the refrigerator body that can be opened or closed; a state sensor for acquiring the limit state of the drawer being opened, the state sensor including a magnetic core and a reed switch, wherein: the magnetic core is retractably mounted on the drawer and the reed switch is mounted on the refrigerator body; or the reed switch is retractably mounted on the drawer and the magnetic core is mounted on the refrigerator body; a drive assembly including: a motor for driving the drawer to move toward or away from the refrigerator body; and a controller for acquiring the limit state of the drawer to control the operation of the motor.

[0006] In some embodiments, the status sensor further includes a magnetic core telescopic clip, which is a telescopic structure used to telescopically mount the magnetic core or the reed switch onto the drawer.

[0007] In some embodiments, the magnetic core telescopic clip includes: a first clip; a second clip, the second clip and the first clip being sleeved and movably connected; and a spring, a first end of the spring being fixed to the first clip and a second end of the spring being fixed to the second clip.

[0008] In some embodiments, the first card strip includes a first end and a second end, the second card strip includes a first end and a second end, the first end of the first card strip is opposite to the first end of the second card strip, the second end of the first card strip is opposite to the second end of the second card strip, the first card strip is sleeved over the second card strip, and both the first end and the second end of the second card strip protrude from the first card strip. The first end of the spring is fixed to the first end of the first card strip, the second end of the spring is fixed to the second end of the second card strip, and the magnetic core is installed at the first end of the second card strip. When the magnetic core telescopic card is in a natural, unforced state, the second end of the second card strip abuts against the second end of the first card strip, and the magnetic core extends out of the drawer in a direction away from the first card strip. When the first end of the magnetic core telescopic card is under force, the spring is stretched, and the first end of the second card strip moves toward the first end of the first card strip to drive the magnetic core to retract toward the drawer in a direction toward the first card strip, wherein the first end of the magnetic core telescopic card is opposite to the first end of the second card strip.

[0009] In some embodiments, the first card bar includes a guide structure for defining the direction of movement of the second card bar; the first card bar also includes a first stop plate, and the second card bar includes a second stop plate, the first stop plate and the second stop plate cooperating to limit the travel distance of the second card bar.

[0010] In some embodiments, the first stop plate is provided with a shock-absorbing pad, and the second stop plate is made of a shock-absorbing material.

[0011] In some embodiments, the magnetic core telescopic card includes a mounting base, which is fixedly connected to or integrally formed with the first card strip, and the mounting base is detachably connected to the drawer.

[0012] In some embodiments, the second card strip further includes a magnetic core receiving cavity and a fixing structure, wherein the magnetic core receiving cavity is used to receive the magnetic core and the fixing structure is used to fix the magnetic core in the magnetic core receiving cavity.

[0013] In some embodiments, the drawer includes a drawer body and a guide rail, the drawer body being slidably connected to the refrigerator body via the guide rail, and the motor being used to drive the drawer body to move in or out of the refrigerator body.

[0014] In some embodiments, the drive assembly further includes a drive gear, a double gear, a rack, and a clutch. The drive gear is connected to the output shaft of the motor via the clutch. The motor drives the double gear via the drive gear. The double gear drives the rack. The rack is connected to the guide rail to drive the guide rail and the drawer body to slide toward or away from the refrigerator body.

[0015] As can be seen from the above technical solution, this application has at least the following advantages and positive effects:

[0016] The refrigerator of this application embodiment overcomes the technical difficulty that when the drawer is opened to its limit, the sensing element on the drawer is far away from another sensing element inside the refrigerator. This is achieved by setting a status sensor, and one of the sensing elements of the status sensor is retractably mounted on the drawer. This allows the status sensor to detect the limit state of the drawer opening, so that the controller can obtain the limit state of the drawer to control the motor to work, which is beneficial to realize the automatic opening and closing of the refrigerator drawer. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of a refrigerator according to a certain embodiment of this application;

[0019] Figure 2 This is a schematic diagram illustrating the assembly of a drawer and a drive assembly according to a certain embodiment of this application.

[0020] Figure 3 This is a schematic diagram showing the interaction between the drawer and the refrigerator body when the drawer is in the closed state according to a certain embodiment of this application;

[0021] Figure 4 This is a cross-sectional view of the drawer and the refrigerator body when the drawer is in the closed state according to a certain embodiment of this application;

[0022] Figure 5 This is a schematic diagram illustrating the interaction between the drawer and the refrigerator body when the drawer is in its fully opened state according to a certain embodiment of this application.

[0023] Figure 6 This is a cross-sectional view of the drawer and the refrigerator body when the drawer is in its fully opened state according to a certain embodiment of this application.

[0024] Figure 7 This is a front view of the magnetic core telescopic clip engaging with the guide rail when the drawer is in its fully opened limit state according to a certain embodiment of this application.

[0025] Figure 8 An axonometric view of the magnetic core telescopic card engaging with the guide rail when the drawer is in its fully opened limit state according to a certain embodiment of this application.

[0026] Figure 9 An axonometric view of the drawer in a certain embodiment of this application, showing the magnetic core telescopic clip engaging with the guide rail in a rear view.

[0027] Figure 10 This is a cross-sectional view of the magnetic core telescopic card when the drawer is in its fully opened state according to a certain embodiment of this application;

[0028] Figure 11 This is a front view of the magnetic core telescopic card engaging with the guide rail when the drawer is in the closed state according to a certain embodiment of this application;

[0029] Figure 12 This is an isometric view of the magnetic core telescopic clip engaging with the guide rail when the drawer is in the closed state according to a certain embodiment of this application.

[0030] Figure 13 This is a cross-sectional view of a magnetic core telescopic card in a certain embodiment of this application when the drawer is in the closed state;

[0031] Figure 14 This is a front view of the mounting base and the first card strip according to a certain embodiment of this application;

[0032] Figure 15 This is an axonometric view of the structure of the mounting base and the first card strip according to a certain embodiment of this application from a frontal perspective.

[0033] Figure 16 This is an isometric view of the structure of the mounting base and the first card strip in a certain embodiment of this application from the rear view.

[0034] The annotations in the attached figures are explained as follows:

[0035] Refrigerator 100, Refrigerator body 1, Drawer 2, Drawer body 21, Drawer door 211, Drawer box 212, Guide rail 22, Status sensor 3, Magnetic core 31, Reed switch 32, Magnetic core telescopic clip 33, First clip 331, First end 3311, Second end 3312, Guide structure 3313, First stop plate 3314, Shock-absorbing pad 3315, First spring fixing hole 3316, Second clip 332, First end 3321, Second end 3322, Second stop plate 3323, Magnetic core receiving cavity 3324, Fixing structure 3325, Second spring fixing hole 3326, Spring 333, First end 3331, Second end 3332, Mounting base 334, Mounting buckle 3341, Drive assembly 4, Motor 41, Controller 42, Drive gear 43, Double gear 44, Rack 45, Clutch 46. Detailed Implementation

[0036] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0037] In the description of this application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0038] The terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first," "second," or "third" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0039] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "connection," "installation," "connection," and "linkage" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0040] Please see Figure 1 , Figure 2 and Figure 4 This application provides a refrigerator 100. The refrigerator 100 includes: a refrigerator body 1; a drawer 2, which is mounted on the refrigerator body 1 and can be opened or closed; a state sensor 3, which is used to acquire the limit state of the drawer 2 being opened, the state sensor 3 including a magnetic core 31 and a reed switch 32, wherein: the magnetic core 31 is retractably mounted on the drawer 2, and the reed switch 32 is mounted on the refrigerator body 1; or the reed switch 32 is retractably mounted on the drawer 2, and the magnetic core 31 is mounted on the refrigerator body 1; a drive assembly 4, which includes: a motor 41, which is used to drive the drawer 2 to move toward or away from the refrigerator body 1; and a controller 42, which is used to acquire the limit state of the drawer 2 to control the operation of the motor 41.

[0041] The refrigerator 100 of this application embodiment overcomes the technical difficulty that when the drawer 2 is opened to its limit, the sensing element on the drawer 2 is far away from the other sensing element inside the refrigerator 100. This is achieved by setting a status sensor 3, and one of the sensing elements of the status sensor 3 is retractably mounted on the drawer 2. Thus, the limit state of the drawer 2 can be detected by the status sensor 3, so that the controller 42 can obtain the limit state of the drawer 2 to control the motor 41 to work, which is beneficial to realize the automatic opening and closing of the drawer 2 of the refrigerator 100.

[0042] The following explanation, in conjunction with the accompanying drawings, will provide further details.

[0043] Please see Figure 1 Refrigerator 100 includes refrigerator body 1, drawer 2, status sensor 3, and drive assembly 4.

[0044] Please see Figure 1 and Figure 2 Drawer 2 includes a drawer body 21 and a guide rail 22. The drawer body 21 is slidably connected to the refrigerator body 1 via the guide rail 22. The motor 41 is used to drive the drawer body 21 to move in or out of the refrigerator body 1. The drawer body 21 includes a drawer door 211 and a drawer compartment 212. The drawer compartment 212 is used to store food to improve its freshness.

[0045] Please see Figure 2 The drive assembly 4 includes a motor 41, a controller 42, a drive gear 43, a double gear 44, a rack 45, and a clutch 46. The motor 41 drives the drawer 2 to move towards or away from the refrigerator body 1. The controller 42 detects the limit state of the drawer 2's opening to control the operation of the motor 41. For example, when the controller 42 detects that the drawer 2 is at its limit state of opening, it controls the motor 41 to stop working. This helps prevent the motor 41 from continuing to drive the drawer 2 away from the refrigerator body 1 even when the drawer is at its limit state of opening, thus avoiding wear on the drawer 2 and the drive assembly 4, saving energy, and improving the service life of the refrigerator 100. The controller 42 can also control the motor 41 to start or stop working when it receives an external voice control signal to achieve automatic opening and closing of the drawer 2.

[0046] Please see Figure 2 The drive gear 43 is connected to the output shaft of the motor 41 via a clutch 46. The motor 41 drives a double gear 44 via the drive gear 43. The double gear 44 drives a rack 45, which is connected to the guide rail 22 to move the guide rail 22 and the drawer body 21 towards or away from the refrigerator body 1. The clutch 46 can be an electromagnetic clutch 46. Since the drive gear 43 is connected to the output shaft of the motor 41 via the electromagnetic clutch 46, the electromagnetic clutch 46 can transmit or disconnect the power output by the motor 41. Therefore, when manual opening and closing of the door is required, the electromagnetic clutch can be directly de-energized to cut off the rigid connection between the motor output shaft and the drive gear, thereby enabling arbitrary switching between automatic door opening and conventional manual door opening / closing states. When the electromagnetic clutch 46 transmits the power output from the motor 41, it can transmit the power of the motor 41 to the drive gear 43, thereby driving the double gear 44, rack 45, guide rail 22, and drawer body 21 to move. This causes the drawer 2 to slide towards or away from the refrigerator body 1, thus opening and closing the drawer 2. Please refer to [link / reference]. Figure 3 and Figure 4 This refers to the engagement state of drawer 2 and refrigerator body 1 when drawer 2 slides to its end towards refrigerator body 1, i.e., when drawer 2 is in the closed state. Please refer to [link / reference]. Figure 5 and Figure 6 This refers to the state of cooperation between drawer 2 and refrigerator body 1 when drawer 2 slides to its limit away from refrigerator body 1, that is, when drawer 2 is in the open limit state.

[0047] Please see Figure 6The status sensor 3 includes a magnetic core 31, a reed switch 32, and a magnetic core telescopic latch 33. When the magnetic core 31 and the reed switch 32 are close to each other, the reed switch 32 can generate a signal and transmit the signal to the controller 42, thereby obtaining the limit state of the drawer 2 opening, which is beneficial for the controller 42 to realize the automatic control of the sliding of the drawer 2.

[0048] Please see Figure 6 and Figure 7 The magnetic core telescopic clip 33 is a telescopic structure used to telescopically mount the magnetic core 31 or the reed switch 32 onto the guide rail 22 of the drawer 2. This specification describes an embodiment where the magnetic core 31 is telescopically mounted onto the guide rail 22 of the drawer 2 as an example. In other embodiments of this application, the reed switch 32 can also be telescopically mounted onto the drawer 2, while the magnetic core 31 is mounted onto the refrigerator body 1. Only the positions of the reed switch 32 and the magnetic core 31 need to be interchanged; the other implementation principles are the same as the embodiment where the magnetic core 31 is telescopically mounted onto the guide rail 22 of the drawer 2. The telescopic structure can be a structure with a spring 333, a structure with a crossbar, etc. This specification describes an embodiment where the telescopic structure has a spring 333 as an example. The magnetic core telescopic card 33 is a telescopic structure, which allows the magnetic core 31 installed on the magnetic core telescopic card 33 to extend when the drawer 2 is opened to the maximum. This can effectively compensate for the limitation of the travel distance of the drawer 2. When the drawer 2 is opened to the limit, the sensing element on the drawer 2 will be far away from another sensing element inside the refrigerator 100. This enables accurate detection of the drawer 2 being opened to the limit.

[0049] Please see Figure 7 The magnetic core telescopic card 33 includes a first card bar 331, a second card bar 332, a spring 333, and a mounting base 334.

[0050] Please see Figure 7 , Figure 8 and Figure 9 The second card strip 332 and the first card strip 331 are movably connected. Specifically, the first card strip 331 may be fitted over the second card strip 332, or the second card strip 332 may be fitted over the first card strip 331. The first card strip 331 includes a first end and a second end, and the second card strip 332 includes a first end and a second end. The first end of the first card strip 331 is opposite to the first end of the second card strip 332, and the second end of the first card strip 331 is opposite to the second end of the second card strip 332. The first card strip 331 is fitted over the second card strip 332, and both the first end and the second end of the second card strip 332 protrude from the first card strip 331.

[0051] Please see Figure 7 and Figure 8The first locking bar 331 includes a guide structure 3313, which is used to limit the movement direction of the second locking bar 332. The guide structure 3313 can be a groove, and the second locking bar 332 can move in the groove along the direction of the groove, thereby limiting the movement of the second locking bar 332 to a fixed direction. This is beneficial to improving the stability of the second locking bar 332 when it moves relative to the first locking bar 331, which in turn helps to improve the stability of the magnetic core 31 throughout the opening and closing of the drawer 2, and also helps to improve the stability of detecting the limit state of the drawer 2 opening.

[0052] Please continue reading. Figure 7 The first locking bar 331 also includes a first stop plate 3314, and the second locking bar 332 includes a second stop plate 3323. The first stop plate 3314 and the second stop plate 3323 cooperate to limit the travel of the second locking bar 332, thereby limiting the maximum length of the second locking bar 332 extending beyond the first locking bar 331. This allows the second locking bar 332 to be precisely fixed at its maximum length when the first locking bar 331 is not subjected to external force. This also facilitates the design of the positions of the magnetic core 31 and the reed switch 32 so that when the drawer 2 is opened to its limit, the position of the magnetic core 31 coincides with or is close to the position of the reed switch 32, improving the stability of the detection of the drawer 2's opening limit. The first stop plate 3314 is provided with a shock-absorbing pad 3315, and the second stop plate 3323 is made of shock-absorbing material. This can reduce the vibration generated when the first stop plate 3314 and the second stop plate 3323 make contact, thereby further improving the stability of the magnetic core 31 throughout the opening and closing of the drawer 2, and helping to improve the stability of detecting the limit state of the drawer 2 opening.

[0053] Please continue reading. Figure 7 The second locking strip 332 also includes a magnetic core receiving cavity 3324 and a fixing structure 3325. The shape of the magnetic core receiving cavity 3324 is adapted to the magnetic core 31, and the magnetic core receiving cavity 3324 is used to accommodate the magnetic core 31. The fixing structure 3325 can be a fixing buckle or a limiting block or other protruding structure, used to fix the magnetic core 31 in the magnetic core receiving cavity 3324, so that the magnetic core 31 can be stably fixed on the magnetic core telescopic card 33, thereby improving the stability of detecting the limit state of the drawer 2 opening.

[0054] Please see Figure 10 The first locking strip 331 also includes a first spring fixing hole 3316, and the second locking strip 332 also includes a second spring fixing hole 3326.

[0055] Please continue reading. Figure 10The spring 333 includes a first end and a second end. The first end of the spring 333 is fixed to the first end of the first clip 331 through a first spring fixing hole 3316, and the second end of the spring 333 is fixed to the second end of the second clip 332 through a second spring fixing hole 3326. The magnetic core 31 is installed at the first end of the second clip 332.

[0056] Please continue reading. Figure 10 When drawer 2 is in the open limit state, the magnetic core telescopic card 33 is in a natural state without external force. The second end of the second card bar 332 abuts against the second end of the first card bar 331, and the magnetic core 31 extends out of drawer 2 in a direction away from the first card bar 331.

[0057] In some embodiments, when drawer 2 is in its fully open state, spring 333 can be in its natural state. In other embodiments, when drawer 2 is in its fully open state, spring 333 can also be in a state of small elongation, such as 1 / 6, 1 / 8, 1 / 10, or 1 / 12 of its original length. Since the state of spring 333 in its natural, unforced state is prone to change, thus affecting the structural stability of the magnetic core telescopic card 33, setting the state of spring 333 to a state of small elongation when drawer 2 is in its fully open state can improve the structural stability of the magnetic core telescopic card 33, thereby improving the accuracy of the state sensor 3 in detecting that drawer 2 is in its fully open state.

[0058] Please see Figure 11 , Figure 12 and Figure 13 When drawer 2 is closed, please combine Figure 4 Since the magnetic core telescopic card 33 abuts against the rear wall of the inner liner of the refrigerator body 1, the first end of the magnetic core telescopic card 33 is under force, causing the spring 333 to stretch. The first end of the second card strip 332 moves toward the first end of the first card strip 331, so as to drive the magnetic core 31 to retract toward the first card strip 331 to retract toward the drawer 2. The first end of the magnetic core telescopic card 33 is opposite to the first end of the second card strip 332.

[0059] Please see Figure 14 , Figure 15 and Figure 16 The mounting base 334 and the first locking strip 331 can be fixedly connected or integrally formed, which can improve the stability of the magnetic core 31. The mounting base 334 and the drawer 2 are detachably connected by the cooperation of the mounting buckle 3341 and the slot on the guide rail 22. The detachable connection facilitates the replacement of old parts and helps to reduce the cost of parts replacement.

[0060] In summary, the refrigerator 100 of this application, by setting a state sensor 3 and having one of its sensing elements retractably mounted on the drawer 2, can overcome the technical difficulty that when the drawer 2 is opened to its limit, the sensing element on the drawer 2 is far from the other sensing element inside the refrigerator 100. This enables the detection of the limit state of the drawer 2, so that the controller 42 can obtain the limit state of the drawer 2 to control the motor 41 to work, which is beneficial to realize the automatic opening and closing of the drawer 2 of the refrigerator 100.

[0061] It should be understood that various parts of the embodiments of this application can be implemented using hardware, software, firmware, or a combination thereof. In the above embodiments, multiple steps or methods can be implemented using software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, it can be implemented using any one or a combination of the following techniques known in the art: discrete logic circuits having logic gates for implementing logical functions on data signals, application-specific integrated circuits (ASICs) having suitable combinational logic gates, programmable gate arrays (PGAs), field-programmable gate arrays (FPGAs), etc.

[0062] The above are merely specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A refrigerator, characterized in that, include: Refrigerator body; A drawer, which can be opened or closed, is mounted on the refrigerator body; A status sensor, used to acquire the limit state of the drawer opening, includes a magnetic core, a reed switch, and a magnetic core telescopic latch, wherein: The magnetic core is retractably mounted on the drawer via a magnetic core telescopic clip, and the reed switch is mounted on the refrigerator body; or The reed switch is retractably mounted on the drawer via the magnetic core telescopic clip, and the magnetic core is mounted on the refrigerator body; The magnetic core telescopic card has a telescopic structure, and the magnetic core telescopic card includes: First card; The second card strip, which is movably connected to the first card strip; and A spring, wherein a first end of the spring is fixed to the first locking strip, and a second end of the spring is fixed to the second locking strip; The driver component includes: A motor, the motor being used to drive the drawer to move toward or away from the refrigerator body; and A controller, the controller being used to acquire the extreme states of the drawer in order to control the operation of the motor; When the drawer is closed, the spring is stretched. When the drawer is in its open limit state, the magnetic core is close to the reed switch and generates a signal, which is then transmitted to the controller.

2. The refrigerator according to claim 1, characterized in that, The first card strip includes a first end and a second end, the second card strip includes a first end and a second end, the first end of the first card strip is opposite to the first end of the second card strip, the second end of the first card strip is opposite to the second end of the second card strip, the first card strip is sleeved on the outside of the second card strip, the first end and the second end of the second card strip both protrude from the first card strip, the first end of the spring is fixed to the first end of the first card strip, the second end of the spring is fixed to the second end of the second card strip, and the magnetic core is installed on the first end of the second card strip; When the magnetic core telescopic card is in a natural, unforced state, the second end of the second card bar abuts against the second end of the first card bar, and the magnetic core extends out of the drawer in a direction away from the first card bar. When the first end of the magnetic core telescopic card is under force, the spring is stretched, and the first end of the second card bar moves toward the first end of the first card bar, so as to drive the magnetic core to retract toward the first card bar to retract toward the drawer, wherein the first end of the magnetic core telescopic card is opposite to the first end of the second card bar.

3. The refrigerator according to claim 1, characterized in that, The first card bar includes a guide structure for limiting the movement direction of the second card bar; the first card bar also includes a first stop plate, and the second card bar includes a second stop plate, the first stop plate and the second stop plate cooperating to limit the movement stroke of the second card bar.

4. The refrigerator according to claim 3, characterized in that, The first stop plate is provided with a shock-absorbing pad, and the second stop plate is made of shock-absorbing material.

5. The refrigerator according to claim 1, characterized in that, The magnetic core telescopic card includes a mounting base, which is fixedly connected to or integrally formed with the first card strip, and the mounting base is detachably connected to the drawer.

6. The refrigerator according to claim 1, characterized in that, The second card also includes a magnetic core receiving cavity and a fixing structure. The magnetic core receiving cavity is used to receive the magnetic core, and the fixing structure is used to fix the magnetic core in the magnetic core receiving cavity.

7. The refrigerator according to any one of claims 1-6, characterized in that, The drawer includes a drawer body and a guide rail. The drawer body is slidably connected to the refrigerator body via the guide rail. The motor is used to drive the drawer body to move in or out of the refrigerator body.

8. The refrigerator according to claim 7, characterized in that, The drive assembly further includes a drive gear, a double gear, a rack, and a clutch. The drive gear is connected to the output shaft of the motor via the clutch. The motor drives the double gear via the drive gear. The double gear drives the rack. The rack is connected to the guide rail to drive the guide rail and the drawer body to slide toward or away from the refrigerator body.

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