KR19990017773A - Refrigerator shelf automatic access device and control method - Google Patents

Abstract

The disclosed refrigerator relates to a refrigerator shelf automatic access device and a method of controlling the same, capable of automatically drawing and drawing shelves installed in a refrigerating compartment.

The present invention receives an operation start signal of a user through an operation switch of the switch input unit, and also detects the position of the shelf through one or more position detection sensors of the shelf position detection unit, the microcomputer is in response to the above operation start signal of the switch input unit Draw or withdraw the shelf by means of the above-described shelf position detection unit, and output the withdrawal or withdrawal signal according to the position of the shelf detected by the above-described shelf position, and the shelf drive unit withdraws or withdraws the shelf according to the withdrawal or withdrawal command of this microcomputer. Driven. Therefore, the user can conveniently store the food container on the shelf, thereby greatly improving the efficiency and reliability of the product, and also preventing the malfunction due to the accurate position of the shelf's entry or withdrawal state detected by the position detection sensor. It is effective.

Description

Refrigerator shelf automatic access device and control method

The present invention relates to a refrigerator. More particularly, the present invention relates to a refrigerator shelf automatic access device and a method of controlling the same, which automatically draws and draws shelves installed in the refrigerator.

In general, a conventional home refrigerator is installed so that a freezer compartment (not shown) and a refrigerating compartment 1 are partitioned above and below a refrigerator body 22 having a heat insulation structure, as shown in FIG. In the refrigerating compartment 1, the freezer compartment and the refrigerating compartment doors 23 and 20 are installed to be opened and closed.

In the refrigerating compartment 1, a shelf 9a for placing food is slidably mounted forward and backward, and a lower portion of the refrigerating compartment 1 is provided with a compartment for the vegetable compartment 24 and the above-mentioned refrigerating compartment 1. do.

In addition, a compressor 26 is installed in the machine room 25 at the lower side of the refrigerator main body 22, and a condenser and a pressure reducer (not shown) are embedded in the refrigerator main body 22 or installed in the machine room 25. do.

On the other hand, as shown in FIG. 2, the shelf of the conventional refrigerator has an angle 2 fixed to an inner inner wall of the refrigerating compartment 1, and a plurality of fixing holes 3 are formed in the angle 2, and the support is supported. At the rear end of the shelf hanger 5a fixed to the front and rear by the bracket 4, a fixing piece 6 is inserted into the fixing hole 3 to be fixed to the shelf hanger 5a.

In addition, guide rails 7 are formed on both upper sides of the shelf hanger 5a, and the glass 9 is inserted on the guide rails 7 of the shelf hanger 5a to place foods on the shelf 9. The guide rail 7 is installed to be slidable forwards and backwards.

Therefore, when installing the shelf 9, the shelf 9 is first inserted on the guide rail 7 of the shelf hanger 5a, and then the fixing piece 6 formed at the rear end of the shelf hanger 5a is angled. The entire shelf 9 is fixed by inserting it into the fixing hole 3 of (2), and the shelf 9 assembled on the shelf hanger 5a is guide rail 7 of the shelf hanger 5a. Sliding in the front, rear direction along the movement so that the user can easily use the food stored on the shelf (9).

On the other hand, when the user wants to adjust the height of the shelf 9, the fixing hole in the state in which the fixing piece 6 of the rear end of the shelf hanger 5a is inserted into and fixed to the fixing hole 3 of the angle 2. (3) remove the fixing piece 6 of the shelf hanger 5a and completely separate the fixing piece 6 of the shelf hanger 5a into the fixing hole 3 of the angle 2 formed at the position desired by the user. The height of the shelf 9 can be adjusted by inserting and fixing.

However, when the shelf 9 installed in the refrigerating compartment 1 of the conventional refrigerator is withdrawn and drawn in, the user has to pull or push the shelf 9 directly, thereby causing a lot of inconvenience and hassle for the user. There was a problem such as being done.

The present invention is to solve the above-mentioned problems, the automatic shelf shelf automatic access device that allows a user to conveniently store the food container on the shelf by allowing the user to automatically withdraw and draw the shelf installed in the refrigerator compartment of the refrigerator; Its purpose is to provide a control method.

1 is a longitudinal sectional view showing a state in which a shelf is mounted in a refrigerator compartment of a conventional refrigerator;

2 is an exploded perspective view illustrating a state in which the shelf of FIG. 1 is coupled;

3 is a perspective view showing a state in which a shelf is mounted in a refrigerator compartment according to the present invention;

Figure 4 is an exploded perspective view showing a shelf structure for automatically entering and exiting the shelf of Figure 3,

5 is a longitudinal sectional view of the main part of FIG. 4;

Figure 6 is a block diagram showing a preferred embodiment of the automatic refrigerator shelf access device according to the present invention,

7 is a flowchart illustrating a control method according to the present invention.

Explanation of symbols for the main parts of the drawings

5: shelf hanger 9: shelf

10: special room 11: operation switch

12: motor 13: motor shaft

14 screw shaft 16 first supporting member

17: second support member 18: shaft

19 gear 31 shelf position detection unit

31a: shelf detection sensor 31b: detection member

32: switch input 33: microcomputer

34: lathe drive unit 35: rotation means

36 transfer means

In order to achieve the above object, a refrigerator shelf automatic access device according to the present invention has a switch input unit for receiving an operation start signal of a user through an operation switch, and a shelf position for detecting a position of a shelf through one or more position detection sensors. A microcomputer which draws in or draws out shelves according to a detection unit and an operation start signal of the switch input unit, and outputs an inlet or drawout signal according to the position of the shelves detected through the shelf position detecting unit; It consists of a lathe drive unit which is driven to draw in or take out a shelf according to the instruction.

In addition, the preferred control method of the present invention is a position detection process for determining whether the operation switch is input and the position of the shelf through the position detection sensor, and the direction of rotation of the motor according to the position of the shelf detected by the position detection process Shelf conveying process of determining the drawer or drawout of the shelf, and detecting the position of the shelf conveyed by the shelf transporting process again, and stopping the motor when the drawer or pullout position is reached to stop the lathe. It consists of.

Hereinafter, with reference to the accompanying drawings a preferred embodiment of the automatic refrigerator shelf automatic access device and a control method according to the present invention will be described in detail, the same components as in the prior art will be described by applying the same reference numerals.

3 is a perspective view showing a state in which a shelf is mounted in the refrigerating compartment according to the present invention, FIG. 4 is an exploded perspective view illustrating a shelf structure for automatically entering and exiting the shelf of FIG. 3, and FIG. 5 is a longitudinal sectional view of the main part of FIG. 4.

As shown in the present invention, an angle 2 is fixed to an inner inner wall of the refrigerator compartment 1 of the refrigerator, and a plurality of fixing holes 3 are formed in the angle 2, and are respectively supported by the respective support brackets 4. And a fixing piece 6 inserted into the rear end of the shelf hanger 5 having the rear fixed thereto to be inserted to fix the shelf hanger 5 to the fixing hole 3.

In addition, guide rails 7 are formed at both upper sides of the shelf hanger 5, and the glass 8 is inserted on the guide rails 7 of the shelf hanger 5 so as to place foods on the shelf 9. The guide rail 7 is installed to be slidable forwards and backwards.

In addition, the rear upper portion of the shelf hanger (5) is applied to the power to move the shelf (9) automatically withdrawal and retracting by touching the operation switch (11) attached to one side of the special compartment 11 on the refrigerating chamber (1) A motor 12 for generating is provided.

In addition, one end of the screw shaft 14, which is rotated by the driving of the motor 12, is coupled to the motor shaft 13 of the motor 12 by the fastening member 15, and the front upper part of the shelf hanger 5 The first support member 16 for rotatably supporting the other end of the screw shaft 14 is provided.

In addition, a second support member 17 is formed at the lower end of the rear side of the shelf 9 on the shelf hanger 5, and the shaft 18 provided on the second support member 17 meshes with the screw shaft 14 to form a screw shaft ( A gear 19 for rotating and drawing the shelf 9 automatically by rotating by the rotation of 14 is provided.

In addition, a position detection sensor 31a is provided above each support bracket 4 that fixes the front and the rear of the shelf hanger 5, and this position detection sensor 31a is formed at the lower end of the shelf 9. It is preferable to detect the insertion or withdrawal position of the shelf by detecting the detection member 31b corresponding to each position detection sensor 31a at the time of entry or withdrawal.

On the other hand, Figure 6 is a block diagram showing a preferred embodiment of the refrigerator shelf automatic access device according to the present invention, Figure 7 is a flow chart showing a control method according to the present invention.

As shown in the drawing, the switch input unit 32 receives a user's operation start signal through the operation switch 11 shown in FIG. 3, and the shelf position detection unit 31 receives the shelf (or the position detection sensor 31a). And 9) to detect the position.

In addition, the microcomputer 33 draws in or draws out the shelf by the operation start signal of the switch input unit 32, and according to the position of the shelf detected through the position detection sensor 31a of the shelf position detecting unit 31. Outputting an incoming or outgoing signal, the shelf drive unit 34 is driven to draw or withdraw the shelf 9 in accordance with the drawing or withdrawal command of the microcomputer 33.

Here, the shelf drive 34 is installed on the shelf hanger (5) in which the shelf (9) for placing food is slidable forward and backward by the guide rail (7) to operate the operation switch (11) The rotating means 35 generating power through the motor 12 and the rotating force of the rotating means 35 are transferred to the shelf 9 to automatically draw and draw the above-described shelf 9 by touching the shelf 9. It is preferred that it is composed of a conveying means 36 for withdrawing and withdrawing.

Referring to the operation of the present invention configured as described above in more detail based on the accompanying drawings.

When the user wants to automatically withdraw the shelf 9 drawn into the refrigerator compartment 1 of the refrigerator, first, the user is attached to one side of the special compartment 10 on the refrigerator compartment 1 while the refrigerator compartment door 20 is opened. When the operation switch 11 is touched, the microcomputer 33 determines whether the operation switch 11 of the switch input unit 32 has been input through the position detection process illustrated in FIG. 7, and the position of the shelf position detection unit 31. The position of the shelf is detected through the detection sensor 31a (S101 to S102).

At this time, each position detection sensor 31a formed on the upper side of each support bracket 4 fixing the front and rear of the shelf hanger 5 detects the detection member 31b corresponding to the upper end thereof, When the detection member 31b is detected by the position detection sensor 31a formed at the front side, it is determined to be a withdrawal position. Will be.

Here, in the case where the refrigerating compartment door 20 is normally opened, it is preferable that the initial position of the shelf 9 is detected at the entrance position.

Thereafter, the microcomputer 33 determines the rotational direction of the motor 12 of the rotating means 35 according to the position of the shelf 9 detected by the position detecting process, and then turns the shelf 9 through the conveying means 36. In step S103 to S105, a lathe transfer process is performed to withdraw or withdraw).

Therefore, initially, the detection member 31b is detected by the position detection sensor 31a formed at the rear, thereby driving the motor 12 in the drawing direction.

Accordingly, the motor shaft 13 is rotated so that one end is coupled to the motor shaft 13 and the other end of the screw shaft 14 is rotatably supported by the first support member 16 above the shelf hanger 5. At the same time, the gear 19 installed in engagement with the screw shaft 14 is moved forward while rotating on the shaft 18 provided on the second support member 17 formed at the bottom rear of the shelf 9 on the shelf hanger 5. Accordingly, the shelf 9 can be automatically withdrawn.

On the other hand, when the user wants to draw in a state in which the shelf 9 is drawn out, when the user touches the operation switch 11 attached to one side of the special chamber 10 on the refrigerating chamber 1, the position detection sensor 31a formed in front The motor 12 is driven in the reverse direction because the detection member 31b is detected at.

Therefore, as the screw shaft 14 rotates in the reverse direction and the gear 19 installed in engagement with the screw shaft 14 rotates in the reverse direction, the shelf 9 is reversed so that the shelf 9 can be automatically retracted. do.

Further, each of the position detection sensors 31a detects the position of the shelf 9 conveyed by the above-described shelf transfer process and applies it to the microcomputer 33 so that the shelf 9 is placed at the retracted or withdrawn position. When it reaches to stop the motor 12 to complete the transfer of the shelf (9) (S106).

The present invention is not limited to the above-described specific preferred embodiments, and various modifications can be made by any person having ordinary skill in the art without departing from the gist of the present invention claimed in the claims. Of course, such changes will fall within the scope of the claims.

As described above, the present invention can automatically withdraw and withdraw the shelf installed in the refrigerator compartment of the refrigerator every time the user touches the operation switch, so that the user can conveniently store the food container on the shelf This is a very useful invention that greatly improves the efficiency and reliability of the product.

In addition, there is a side effect of preventing the malfunction due to the accurate position of the entry or withdrawal state of the shelf is detected by the position detection sensor.

Claims (6)

A switch input unit configured to receive an operation start signal of a user through an operation switch; A shelf position detector for detecting a position of the shelf through at least one position detection sensor; A microcomputer which draws in or draws out the shelves according to the operation start signal of the switch input unit, and outputs an incoming or outgoing signal according to the position of the shelves detected through the shelf position detector; And a shelf driving unit driven to draw or withdraw the shelf according to the drawing or withdrawal command of the microcomputer. The sensor of claim 1, wherein the position detection sensor; It is provided on the upper side of each support bracket for fixing the front and rear of the shelf hanger, so as to detect the detection member formed at the bottom of the shelf and corresponding to the respective position detection sensor at the time of entry or withdrawal to detect the entry or withdrawal position of the shelf Refrigerator shelf automatic entrance device characterized in that. According to claim 1, The shelf drive unit; A shelf for placing food is mounted on a shelf hanger that is slidable forward and backward by the guidance of guide rails, and generates rotation through a motor to automatically draw and retract shelves by touching the operation switch. Way; And Refrigerator shelf automatic access device characterized in that it is configured to receive the rotational force of the rotating means for transporting the drawer and draw out the drawer. The method of claim 3, wherein the rotating means; One end is coupled to the motor shaft of the motor and the other end is a refrigerator shelf automatic access device, characterized in that the screw shaft is installed between the first support member installed in the upper front of the shelf hanger to rotate by the drive of the motor. The method of claim 3, wherein the conveying means; The shelf automatic withdrawal of the refrigerator characterized in that the gear is installed on the shaft of the second support member formed on the lower end of the shelf on the shelf hanger to engage with the screw shaft to rotate by the rotation of the screw shaft to automatically pull out and retract the shelf. Inlet device. A position detection process of determining whether an operation switch is input and detecting a position of the shelf through a position detection sensor; A shelf conveying process of determining a rotational direction of the motor according to the position of the shelf detected by the position detecting process to draw or draw the shelf; And a shelf stop process of stopping the motor to complete the transfer of the shelf when the position of the shelf transferred by the shelf transfer process is detected again to reach an entry or withdrawal position.