A frost detection device for a refrigerator

Abstract

The utility model discloses a refrigerator frost detection device, including evaporimeter, be used for detecting the frost sensor of refrigerator frost condition, be used for realizing the L type clamping block of frost sensor quick installation, and L type clamping block sets up at one side of frost sensor, be used for realizing the limiting mechanism that limits and fixes to L type clamping block, and limiting mechanism sets up on evaporimeter, the utility model discloses through the setting of limiting mechanism and L type clamping block, L type clamping block realized the quick convenient installation of frost sensor, and limiting mechanism can be effective limiting and fixed to the L type clamping block after the joint, can form firm constraint under the vibration, temperature change and external force effect in the operation of refrigerator to clamping block, prevent frost sensor loose or shift, effectively solved the problem that traditional plastic buckle is easy to loosen, fall off, therefore, the increase of limiting component has guaranteed the stable detection of frost sensor to evaporimeter frost condition to effectual guarantee frost detection accuracy and reliability.

Description

Technical Field

[0001] This utility model relates to the field of refrigerator technology, specifically to a refrigerator frost detection device. Background Technology

[0002] A refrigerator is a household appliance that maintains a constant low temperature through a refrigeration system. It is mainly used for food preservation and storage. During the refrigeration process, frost formation on the evaporator surface is an unavoidable phenomenon. The accumulation of frost will significantly reduce heat exchange efficiency, leading to longer compressor working time and increased energy consumption. At the same time, it will affect the temperature stability inside the refrigerator, thereby shortening the food preservation period. To address this issue, modern refrigerators are generally equipped with frost detection devices. By installing frost sensors on the evaporator surface, the frost condition can be monitored in real time, and the data can be fed back to the control module to trigger the defrosting process.

[0003] In refrigeration equipment such as refrigerators, the monitoring of the frost status of the evaporator by the frost sensor is crucial. Currently, the frost sensor is mostly installed by directly snapping it to the evaporator with plastic clips. This method is widely used because it is simple to operate and low in cost. However, due to the lack of limiting components to effectively constrain the clips, the plastic clips are prone to displacement, loosening, or even falling off under the influence of external forces such as vibration caused by frequent start-stop of the equipment, thermal expansion and contraction caused by temperature cycles, and collisions caused by users picking up and putting down items. This will affect the accurate detection of the frost status of the evaporator by the frost sensor. Therefore, we need to propose a refrigerator frost detection device. Utility Model Content

[0004] The purpose of this utility model is to provide a refrigerator frost detection device. By setting a limiting mechanism and an L-shaped locking block, the limiting mechanism can effectively limit and fix the L-shaped locking block after it is engaged, preventing the frost sensor from becoming loose or shifting, thereby solving the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A refrigerator frost detection device includes: an evaporator; a frost sensor for detecting frost in the refrigerator; an L-shaped locking block for quick installation of the frost sensor, wherein the L-shaped locking block is disposed on one side of the frost sensor; and a limiting mechanism for limiting and fixing the L-shaped locking block, wherein the limiting mechanism is disposed on the evaporator.

[0007] Preferably, the limiting mechanism includes a mounting base, a snap-fit ​​groove, a movable plate, a limiting post, a limiting hole, and an elastic element; the mounting base is fixedly installed inside the evaporator, and the top of the mounting base is provided with a snap-fit ​​groove for the L-shaped snap-fit ​​block to snap into; two sets of movable plates are symmetrically slidably arranged inside the mounting base, and two sets of limiting posts are fixedly installed on the opposite side of the two sets of movable plates; two sets of limiting holes are provided on both sides of the L-shaped snap-fit ​​block for the limiting posts to insert into; and elastic elements are provided on the side of the two sets of movable plates away from the limiting posts.

[0008] Preferably, the elastic element includes an inverted tie rod and a return spring; the inverted tie rod is provided on the side of the movable plate away from the limiting post, and two sets of return springs are sleeved on the outer side of the inverted tie rod.

[0009] Preferably, one end of the return spring is installed inside the mounting base, and the other end is pressed against one side of the movable plate.

[0010] Preferably, the mounting base has two sets of first through holes on both sides for sliding of the C-shaped tie rod, and the mounting base has symmetrical second through holes inside for sliding of the limiting post.

[0011] Preferably, a first slider is fixedly installed on the top of both sets of movable plates, and a first groove is provided on the inner top of the mounting base for the first slider to slide.

[0012] Preferably, a second slider is fixedly installed at the bottom of the movable plate, a support plate is fixedly installed inside the mounting base, and a second slide groove is symmetrically opened at the top of the support plate for the second slider to slide.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This invention utilizes a limiting mechanism and an L-shaped locking block. The L-shaped locking block enables quick and convenient installation of the frost sensor, while the limiting mechanism effectively limits and fixes the L-shaped locking block after it is engaged. Under vibration, temperature changes, and external forces during refrigerator operation, it provides a stable constraint on the locking block, preventing the frost sensor from loosening or shifting. This effectively solves the problem of traditional plastic clips being prone to loosening and falling off. Therefore, the addition of the limiting component ensures stable detection of frost conditions on the evaporator by the frost sensor, thereby effectively guaranteeing the accuracy and reliability of frost detection. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the L-shaped card block and card slot of this utility model;

[0017] Figure 3This is a cross-sectional view of the mounting base of this utility model;

[0018] Figure 4 This is a schematic diagram of the limiting mechanism and support plate of this utility model;

[0019] Figure 5 This is a schematic diagram of the structure of the first through hole, the second through hole, and the first sliding groove of this utility model.

[0020] In the diagram: 1. Evaporator; 2. Frost sensor; 3. L-shaped locking block; 4. Limiting mechanism; 41. Mounting base; 42. Locking groove; 43. Moving plate; 44. Limiting post; 45. Limiting hole; 46. Elastic element; 461. C-shaped tie rod; 462. Return spring; 5. First through hole; 6. Second through hole; 7. First slider; 8. First slide groove; 9. Second slider; 10. Support plate; 11. Second slide groove. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figures 1-5 This utility model provides a technical solution:

[0023] A refrigerator frost detection device includes: an evaporator 1; a frost sensor 2 for detecting frost in the refrigerator; an L-shaped locking block 3 for quick installation of the frost sensor 2, wherein the L-shaped locking block 3 is disposed on one side of the frost sensor 2; and a limiting mechanism 4 for limiting and fixing the L-shaped locking block 3, wherein the limiting mechanism 4 is disposed on the evaporator 1.

[0024] With the arrangement of evaporator 1, frost sensor 2, L-shaped locking block 3, and limiting mechanism 4, the evaporator 1, as a key component of refrigerator refrigeration, directly affects the refrigeration efficiency due to the frost state on its surface. The frost sensor 2 is responsible for monitoring the frost condition of the evaporator 1 in real time and feeding the data back to the refrigerator control system to trigger the defrosting program. The detection and control of the frost sensor 2 is existing technology and is not within the scope of protection of this utility model, so it will not be elaborated on here. The L-shaped locking block 3 is set on one side of the frost sensor 2 and adopts a unique right-angle structure to meet the installation requirements, enabling the frost sensor 2 to be quickly positioned and locked, greatly improving the installation efficiency. The limiting mechanism 4 is installed on the evaporator 1 and works in conjunction with the L-shaped locking block 3 to provide a stable limiting support for the frost sensor 2, ensuring its stable operation under complex working conditions.

[0025] Specifically, the limiting mechanism 4 includes a mounting base 41, a snap-fit ​​groove 42, a moving plate 43, a limiting post 44, a limiting hole 45, and an elastic element 46. The mounting base 41 is fixedly installed inside the evaporator 1. The top of the mounting base 41 is provided with a snap-fit ​​groove 42 for the L-shaped snap-fit ​​block 3 to snap into. Two sets of moving plates 43 are symmetrically slidably arranged inside the mounting base 41. Two sets of limiting posts 44 are fixedly installed on the opposite side of the two sets of moving plates 43. Two sets of limiting holes 45 are provided on both sides of the L-shaped snap-fit ​​block 3 for the limiting posts 44 to insert into. Elastic elements 46 are provided on the side of the two sets of moving plates 43 away from the limiting posts 44.

[0026] With the installation base 41, the snap-fit ​​groove 42, the movable plate 43, the limiting post 44, the limiting hole 45, and the elastic element 46, the installation base 41 provides a stable basic frame for the entire limiting structure. The snap-fit ​​groove 42 at the top is adapted to the size of the L-shaped card block 3, which can ensure that the card block can be accurately aligned when inserted. Two sets of sliding movable plates 43 are symmetrically arranged inside the installation base 41, and the limiting post 44 fixed on the movable plate 43 can move synchronously with the movable plate 43. The limiting holes 45 on both sides of the L-shaped card block 3 form a plug-in cooperation with the limiting post 44. When the L-shaped card block 3 is fully inserted into the snap-fit ​​groove 42, the limiting post 44 can be accurately inserted into the limiting hole 45 to lock the L-shaped card block 3. The elastic element 46 provides power for the reset of the movable plate 43, ensuring that the limiting post 44 can return to its locked position in time.

[0027] The elastic element 46 includes an inverted tie rod 461 and a return spring 462; the inverted tie rod 461 is provided on the side of the moving plate 43 away from the limiting post 44, and two sets of return springs 462 are sleeved on the outer side of the inverted tie rod 461.

[0028] With the arrangement of the C-shaped tie rod 461 and the return spring 462, the special structure of the C-shaped tie rod 461 not only ensures a stable connection with the moving plate 43, but also extends the operating end to the outside of the mounting base 41, making it convenient for the operator to apply force. The return spring 462 provides a stable elastic return force for the entire limiting mechanism 4, ensuring that the limiting post 44 can be reliably inserted into the limiting hole 45.

[0029] Specifically, one end of the return spring 462 is installed inside the mounting base 41, and the other end is pressed against one side of the moving plate 43.

[0030] By setting the reset spring 462, when the reset spring 462 is compressed, it can evenly transfer the elastic potential energy to the moving plate 43, ensuring that the moving plate 43 is reset smoothly. After the L-shaped locking block 3 is locked in place, the reset spring 462 releases energy to push the moving plate 43, so that the limiting post 44 quickly inserts into the limiting hole 45, completing the automatic locking of the L-shaped locking block 3 and ensuring that the frosting sensor 2 is installed firmly.

[0031] The mounting base 41 has two sets of first through holes 5 on both sides for sliding of the U-shaped tie rod 461, and the mounting base 41 has symmetrical second through holes 6 for sliding of the limiting post 44.

[0032] With the first through hole 5 and the second through hole 6, the first through hole 5 provides precise guidance for the reciprocating motion of the U-shaped tie rod 461, ensuring the stability of the tie rod during movement. At the same time, the second through hole 6, which is symmetrically arranged inside the mounting base 41, provides a channel for the movement of the limiting post 44 in and out, ensuring that the limiting post 44 can be accurately aligned with the limiting hole 45.

[0033] In a further preferred embodiment, a first slider 7 is fixedly installed on the top of each of the two sets of movable plates 43, and a first groove 8 is provided on the inner top of the mounting base 41 for the first slider 7 to slide.

[0034] With the first slider 7 and the first groove 8 set, the first slider 7 slides in the first groove 8, providing a stable top guide for the moving plate 43, preventing the moving plate 43 from tilting or shaking during horizontal sliding, and ensuring that the limiting post 44 and the limiting hole 45 always remain coaxially aligned, thereby improving the accuracy and reliability of the limiting mechanism 4.

[0035] Specifically, a second slider 9 is fixedly installed at the bottom of the movable plate 43, a support plate 10 is fixedly installed inside the mounting base 41, and a second slide groove 11 for the second slider 9 to slide is symmetrically opened at the top of the support plate 10.

[0036] With the arrangement of the second slider 9, the second slide groove 11 and the support plate 10, the support plate 10 serves as a fixed structure, providing a stable support surface for the moving plate 43. The second slider 9 slides within the second slide groove 11, further enhancing the stability of the moving plate 43 during sliding and avoiding jamming caused by uneven force. The double guide support structure at the top and bottom ensures that the moving plate 43 remains stable during its telescopic movement.

[0037] Working principle: When using this utility model, firstly, pull the two sets of C-shaped pull rods 461 outward. The C-shaped pull rods 461 drive the moving plate 43 and the limiting post 44 to move outward, so that the limiting post 44 moves and is stored in the second through hole 6. At this time, the return spring 462 is compressed. Then, the L-shaped locking block 3 on one side of the frost sensor 2 is aligned with the locking groove 42 of the mounting base 41 on the evaporator 1 and inserted. When the L-shaped locking block 3 is fully inserted into the locking groove 42, the corresponding limiting hole 45 is aligned with the position of the limiting post 44. Release the C-shaped pull rods 461, and the return spring 462 pushes the moving plate 43 to reset, so that the limiting post 44 is inserted into the limiting hole 45, thereby realizing the limiting and fixing of the L-shaped locking block 3, ensuring the stable installation of the frost sensor 2, and thus enabling stable detection of the frost state of the evaporator 1.

[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A refrigerator frost detection device, characterized in that, include: Evaporator (1); Frost sensor (2) for detecting frost buildup in refrigerator; An L-shaped clip (3) is used to enable quick installation of the frost sensor (2), and the L-shaped clip (3) is located on one side of the frost sensor (2); A limiting mechanism (4) is used to limit and fix the L-shaped card block (3), and the limiting mechanism (4) is set on the evaporator (1).

2. The refrigerator frost detection device according to claim 1, characterized in that: The limiting mechanism (4) includes a mounting base (41), a snap-fit ​​groove (42), a movable plate (43), a limiting post (44), a limiting hole (45), and an elastic element (46); The mounting base (41) is fixedly installed inside the evaporator (1). The top of the mounting base (41) is provided with a snap-fit ​​groove (42) for the L-shaped snap-fit ​​block (3) to snap into. Two sets of moving plates (43) are symmetrically slidably arranged inside the mounting base (41). Two sets of limiting posts (44) are fixedly installed on the opposite side of the two sets of moving plates (43). Two sets of limiting holes (45) are provided on both sides of the L-shaped snap-fit ​​block (3) for the limiting posts (44) to insert into. Elastic elements (46) are provided on the side of the two sets of moving plates (43) away from the limiting posts (44).

3. A refrigerator frost detection device according to claim 2, characterized in that: The elastic element (46) includes an inverted tie rod (461) and a return spring (462); the movable plate (43) is provided with an inverted tie rod (461) on the side away from the limiting post (44), and two sets of return springs (462) are sleeved on the outer side of the inverted tie rod (461).

4. A refrigerator frost detection device according to claim 3, characterized in that: One end of the return spring (462) is installed inside the mounting base (41), and the other end is pressed against one side of the moving plate (43).

5. A refrigerator frost detection device according to claim 3, characterized in that: The mounting base (41) has two sets of first through holes (5) on both sides for sliding of the U-shaped tie rod (461), and the mounting base (41) has symmetrical second through holes (6) for sliding of the limiting post (44).

6. A refrigerator frost detection device according to claim 2, characterized in that: The top of each of the two sets of movable plates (43) is fixedly installed with a first slider (7), and the inner top of the mounting base (41) is provided with a first groove (8) for the first slider (7) to slide.

7. A refrigerator frost detection device according to claim 2, characterized in that: The bottom of the movable plate (43) is fixedly installed with a second slider (9), and the inside of the mounting base (41) is fixedly installed with a support plate (10), and the top of the support plate (10) is symmetrically provided with a second slide groove (11) for the second slider (9) to slide.

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