A door lock assembly for a refrigerator

Abstract

The utility model belongs to refrigerator door lock technical field discloses a door lock assembly for refrigerator, including fingerprint identification ware, processor module and pressure sensor, still include the electromagnet of setting in the cabinet door periphery side, and the iron block of setting on the refrigerator main body and with electromagnet one -to -one correspondence, be equipped with the opening monitoring module between the cabinet door and refrigerator main body, in daily processor module control opening monitoring module is in detection working condition, when fingerprint identification ware does not identify fingerprint information, when opening monitoring module detects that the cabinet door and refrigerator main body are in the opening state, then processor module controls electromagnet and carries out the work of electrification, carries out the magnetic attraction locking to the cabinet door and refrigerator main body. The utility model can only open the cabinet door after the fingerprint information is identified, thereby avoiding the phenomenon that the infant may open the cabinet door by force.

Description

Technical Field

[0001] This utility model relates to the field of freezer door lock technology, and in particular to a door lock component for freezers. Background Technology

[0002] A freezer, also known as a refrigerator or freezer cabinet, is used to keep food fresh and refrigerate, thus extending its shelf life. It is widely used in daily life. In order to prevent children from accidentally opening the freezer in the home, door locks are usually installed to lock the door. Most of the existing ones are locked by magnetic latches that are pasted on the door seam. Adults have to pull them open, but the disadvantage is that young children may force them open, so the safety is not high. Summary of the Invention

[0003] To overcome the technical defects of the existing technology, this utility model provides a door lock component for a freezer, which can only open the door after fingerprint information is recognized, thereby preventing young children from forcibly opening the door.

[0004] The technical solution adopted by this utility model is: a door lock assembly for a freezer, including a fingerprint reader, a processor module and a pressure sensor; it also includes an electromagnet disposed around the freezer door and an iron block disposed on the freezer body and corresponding to the electromagnet.

[0005] An opening monitoring module is provided between the cabinet door and the main body of the freezer. The opening monitoring module includes an inwardly recessed groove on the cabinet door. A pressure sensor is provided on the bottom side of the groove. A moving block that moves along the groove is provided in the groove. A spring is provided between the moving block and the force detection surface of the pressure sensor. A protrusion is provided at the part of the freezer body that contacts the cabinet door. A pressure block is provided on the protrusion to test the pressure of the moving block.

[0006] The output of the pressure sensor is connected to the processor module, and the fingerprint reader and electromagnet are both connected to the processor module.

[0007] During normal operation, when the processor module controls the opening monitoring module to be in detection mode, if the fingerprint reader fails to recognize fingerprint information, and the opening monitoring module detects that the cabinet door and the main body of the freezer are in an open state, the processor module controls the electromagnet to be energized to magnetically lock the cabinet door and the main body of the freezer.

[0008] Preferably, when the fingerprint reader recognizes fingerprint information, the processor module controls the start monitoring module to stop working, and at the same time, the processor module does not energize the electromagnet, keeping the electromagnet in a de-energized state.

[0009] Preferably, the cabinet door is provided with a first magnetic strip at the contact point where it connects with the main body of the freezer, and the main body of the freezer is provided with a second magnetic strip that magnetically engages with the first magnetic strip. Both the cabinet door and the main body of the freezer are provided with sealing strips to seal the connection between them.

[0010] Preferably, a limiting end cap for limiting the movement of the moving block is fixed to the outside of the groove, and the limiting end cap is provided with a through hole for the pressure block to pass through.

[0011] Preferably, the first magnetic strip, the second magnetic strip, and the sealing strip are provided with avoidance holes that correspond to the position of the pressure block and avoid the pressure block.

[0012] The beneficial effects of this utility model are as follows: 1. This utility model provides an opening monitoring module between the cabinet door and the main body of the freezer, and provides an electromagnet and an iron block between the cabinet door and the main body of the freezer. It then forms a system with a fingerprint reader and a processor module. The fingerprint reader is used to record fingerprint information. In daily use, the processor module controls the opening monitoring module to be in the detection working state. When the fingerprint reader does not recognize fingerprint information, and the opening monitoring module detects that the cabinet door and the main body of the freezer are in the open state, the processor module controls the electromagnet to be energized to magnetically lock the cabinet door and the main body of the freezer. This prevents children from forcibly opening the refrigerator door and ensures safety.

[0013] 2. When the fingerprint reader recognizes fingerprint information, the processor module controls the monitoring module to stop working. At the same time, the processor module does not control the electromagnet to be powered on, keeping the electromagnet in a de-energized state. This will not have an adverse effect on daily use, and the fact that the electromagnet is in a de-energized state under normal circumstances has an energy-saving effect.

[0014] 3. This utility model retains the traditional cabinet door with a first magnetic strip at the contact point where it connects with the main body of the freezer, and the main body of the freezer is provided with a second magnetic strip that magnetically engages with the first magnetic strip. Both the cabinet door and the main body of the freezer are provided with sealing strips to seal the connection between them. In this way, when the electromagnet is not energized, the first and second magnetic strips, which magnetically engage, can be used to position the cabinet door on a daily basis without the need for the electromagnet to work, thus achieving an energy-saving effect. Attached Figure Description

[0015] One or more embodiments are illustrated by way of example with reference numerals in the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the figures in the drawings are not to be limited by scale.

[0016] Figure 1This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the pressure block of this utility model;

[0018] Figure 3 This is a schematic diagram showing the position of the electromagnet in this utility model;

[0019] Figure 4 This is a schematic diagram of the installation of the pressure sensor of this utility model;

[0020] Figure 5 This is a schematic diagram of the installation of the fingerprint reader of this utility model;

[0021] Figure 6 This is a system block diagram of the present invention.

[0022] Explanation of reference numerals in the attached figures: 1. Fingerprint reader; 2. Processor module; 3. Pressure sensor; 4. Cabinet door; 5. Electromagnet; 6. Iron block; 7. Groove; 8. Moving block; 9. Spring; 10. Protrusion; 11. Pressure block; 12. First magnetic strip; 13. Second magnetic strip; 14. Sealing strip; 15. Limiting end cap; 16. Through hole; 17. Clearance hole; 18. Freezer body. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the various embodiments of this utility model will be described in detail below with reference to the accompanying drawings. However, those skilled in the art will understand that many technical details have been provided in the various embodiments of this utility model to facilitate a better understanding of this application. However, the technical solutions claimed in the claims of this application can be implemented even without these technical details and with various variations and modifications based on the following embodiments.

[0024] like Figures 1 to 6 As shown, this embodiment provides a door lock assembly for a freezer, including a fingerprint reader 1, a processor module 2, and a pressure sensor 3; it also includes electromagnets 5 disposed around the freezer door 4, and iron blocks 6 disposed on the freezer body 18 and corresponding to the electromagnets 5; wherein the fingerprint reader 1, processor module 2, and pressure sensor 3 are all existing mature products and can be obtained through sales, therefore the specific circuit structure and composition will not be described again. An electrical box is embedded in the freezer door, and the fingerprint reader 1 and processor module 2 are both installed inside the electrical box.

[0025] An opening monitoring module is provided between the cabinet door 4 and the freezer body 18. The opening monitoring module includes an inwardly recessed groove 7 on the cabinet door 4. A pressure sensor 3 is provided on the bottom side of the groove 7. A moving block 8 that moves along the groove 7 is provided in the groove 7. A spring 9 is provided between the moving block 8 and the force detection surface of the pressure sensor 3. A protrusion 10 is provided at the part of the freezer body 18 that contacts the cabinet door 4. A pressure applying block 11 is provided on the protrusion 10 to test the pressure of the moving block 8. The detection principle of the opening monitoring module is as follows: after the cabinet door 4 and the freezer body 18 are closed, the pressure applying block applies pressure to the moving block, which compresses the spring. This causes the spring to exert a certain pressure on the pressure sensor. When the cabinet door and the freezer body 18 show a tendency to open, the pressure applying block retracts, which changes the compression of the spring and reduces the pressure of the spring on the pressure sensor. Thus, the processor module 2 receives the reduced pressure from the pressure sensor, indicating that the cabinet door 4 and the freezer body 18 are in a tendency to open. The elastic force generated by the compression of the spring should prevent the cabinet door from opening under normal conditions.

[0026] The output end of the pressure sensor 3 is connected to the processor module 2, and the fingerprint reader 1 and the electromagnet 5 are both connected to the processor module 2.

[0027] During normal use, the processor module 2 controls the opening monitoring module to be in the detection working state. When the fingerprint reader 1 fails to recognize fingerprint information, and the opening monitoring module detects that the cabinet door 4 and the freezer body 18 are in the open state, the processor module 2 controls the electromagnet 5 to be energized to magnetically lock the cabinet door 4 and the freezer body 18.

[0028] This invention features an opening detection module between the cabinet door 4 and the main body of the refrigerator, along with an electromagnet 5 and an iron block 6. This system, along with a fingerprint reader 1 and a processor module 2, forms a complete system. The fingerprint reader 1 records fingerprint information. During normal use, the processor module 2 controls the opening detection module to operate. When the fingerprint reader 1 fails to recognize a fingerprint, and the opening detection module detects that the cabinet door 4 and the main body of the refrigerator are open, the processor module 2 controls the electromagnet 5 to be energized, magnetically locking the cabinet door 4 and the main body of the refrigerator. This prevents children from forcibly opening the refrigerator door, ensuring safety.

[0029] When the fingerprint reader 1 recognizes the fingerprint information, the processor module 2 controls the monitoring module to stop working. At the same time, the processor module 2 does not control the electromagnet 5 to be powered on, keeping the electromagnet 5 in a power-off state. This will not have an adverse effect on daily use, and the fact that the electromagnet is in a power-off state under normal circumstances has an energy-saving effect.

[0030] The cabinet door 4 is provided with a first magnetic strip 12 at the contact point where it connects with the freezer body 18, and the freezer body 18 is provided with a second magnetic strip 13 that magnetically engages with the first magnetic strip 12. Both the cabinet door 4 and the freezer body 18 are provided with sealing strips 14 to seal the connection between them. This retains the traditional magnetic positioning mechanism between the cabinet door and the freezer body. In this way, when the electromagnet is not energized, the first and second magnetic strips, which engage magnetically, can be used to position the cabinet door normally, without the need for the electromagnet to work, thus achieving energy saving.

[0031] The groove 7 is fixed with a limiting end cap 15 for limiting the movement block 8, and the limiting end cap 15 is provided with a through hole 16 for the pressure block 11 to pass through, so as to prevent the movement block from accidentally sliding out of the groove.

[0032] The first magnetic strip 12, the second magnetic strip 13 and the sealing strip 14 are provided with avoidance holes 17 that correspond to the position of the pressure block 11 and avoid the pressure block 11, so that the pressure block 11 can apply pressure to the moving block.

[0033] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0034] Working principle: This utility model has an opening detection module between the cabinet door 4 and the main body of the refrigerator, and an electromagnet 5 and an iron block 6 between the cabinet door 4 and the main body of the refrigerator. It forms a system with a fingerprint reader 1 and a processor module 2. The fingerprint reader 1 is used to record fingerprint information. In daily use, the processor module 2 controls the opening detection module to be in the detection state. When the fingerprint reader 1 does not recognize fingerprint information, and the opening detection module detects that the cabinet door 4 and the main body of the refrigerator are open, the processor module 2 controls the electromagnet 5 to be energized to magnetically lock the cabinet door 4 and the main body of the refrigerator. This prevents children from forcibly opening the refrigerator door and ensures safety.

[0035] When the fingerprint reader 1 recognizes the fingerprint information, the processor module 2 controls the monitoring module to stop working. At the same time, the processor module 2 does not control the electromagnet 5 to be powered on, keeping the electromagnet 5 in a power-off state. This will not have an adverse effect on daily use, and the fact that the electromagnet is in a power-off state under normal circumstances has an energy-saving effect.

[0036] Those skilled in the art will understand that the above embodiments are specific examples of implementing the present invention, and in practical applications, various changes can be made to them in form and detail without departing from the spirit and scope of the present invention.

Claims

1. A door lock assembly for a freezer, comprising a fingerprint reader (1), a processor module (2), and a pressure sensor (3); characterized in that: It also includes electromagnets (5) installed around the cabinet door (4) and iron blocks (6) installed on the main body of the freezer (18) that correspond one-to-one with the electromagnets (5). An opening monitoring module is provided between the cabinet door (4) and the freezer body (18). The opening monitoring module includes a recessed groove (7) on the cabinet door (4). A pressure sensor (3) is provided on the bottom side of the groove (7). A moving block (8) that moves along the groove (7) is provided in the groove (7). A spring (9) is provided between the moving block (8) and the force detection surface of the pressure sensor (3). A protrusion (10) is provided at the part of the freezer body (18) that contacts the cabinet door (4). A pressure block (11) is provided on the protrusion (10) to test the pressure of the moving block (8). The output of the pressure sensor (3) is connected to the processor module (2), and the fingerprint reader (1) and the electromagnet (5) are both connected to the processor module (2). During daily use, the processor module (2) controls the opening monitoring module to be in the detection working state. When the fingerprint reader (1) does not recognize the fingerprint information, when the opening monitoring module detects that the cabinet door (4) and the main body of the freezer (18) are in the open state, the processor module (2) controls the electromagnet (5) to be powered on and magnetically lock the cabinet door (4) and the main body of the freezer (18).

2. A door lock assembly for a freezer according to claim 1, characterized in that: When the fingerprint reader (1) recognizes the fingerprint information, the processor module (2) controls the monitoring module to stop working. At the same time, the processor module (2) does not energize the electromagnet (5) and keeps the electromagnet (5) in a de-energized state.

3. A door lock assembly for a freezer according to claim 1, characterized in that: The cabinet door (4) is provided with a first magnetic strip (12) at the contact point where it connects with the freezer body (18), and the freezer body (18) is provided with a second magnetic strip (13) that magnetically engages with the first magnetic strip (12). Both the cabinet door (4) and the freezer body (18) are provided with sealing strips (14) to seal the connection between them.

4. A door lock assembly for a freezer according to claim 1, characterized in that: The groove (7) is fixed with a limiting end cap (15) for limiting the movement block (8), and the limiting end cap (15) is provided with a through hole (16) for the pressure block (11) to pass through.

5. A door lock assembly for a freezer according to claim 3, characterized in that: The first magnetic strip (12), the second magnetic strip (13) and the sealing strip (14) are provided with avoidance holes (17) that correspond to the position of the pressure block (11) and avoid the pressure block (11).

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