KR20010104410A - A multistage door for an refrigerator - Google Patents

Abstract

The present invention relates to a door for a refrigerator, and more particularly, to reduce power consumption by preventing excessive cold air loss in the refrigerator compartment, and to configure the door of the refrigerator compartment in multiple stages to maintain the freshness of food stored in the refrigerator for a longer time. It is about multi-stage door.

To this end, the present invention, in the door for a refrigerator for opening and closing the refrigerating chamber 12, the upper door 20 and the lower door 30, each of which the handles 28 and 34 are installed in two upper and lower stages, The lower portion of the upper door 20 mounted on the upper side of the refrigerating chamber 12 has a downward inclined portion 21 formed to be inclined downward to the outside, and the upper portion of the lower door 30 mounted on the lower side of the refrigerating chamber 12 is It characterized in that the upward inclination portion 31 is formed to be inclined upwardly inward to be mated with the downward inclination portion 21 of the upper door 20.

Description

Multi-stage door for refrigerator {A multistage door for an refrigerator}

The present invention relates to a door for a refrigerator, and more particularly, to reduce power consumption by preventing excessive cold air loss in the refrigerator compartment, and to configure the door of the refrigerator compartment in multiple stages to maintain the freshness of food stored in the refrigerator for a longer time. It is about multi-stage door.

In general, a refrigerator is divided into a freezer compartment and a refrigerating compartment, and separate doors are installed in each freezer compartment and a refrigerating compartment.

Such a refrigerator is once operated and requires a large amount of power required to lower the temperatures of the freezer compartment and the refrigerating chamber to a temperature set at room temperature, whereas a relatively large amount of power is not required to maintain the set temperature thereafter.

These refrigerators are frequently used by users in the refrigerator compartment for storing food such as fruits, vegetables and side dishes, and the freezer compartment for storing ice or frozen foods is less frequently used than the refrigerator compartment, and in terms of the size of the freezer and refrigerator compartment It is common that the size of the freezer compartment is large.

In the case of using the refrigerator as described above, when the door of the refrigerating compartment is opened and the required food is taken out or put into storage, the entire refrigerating compartment is used in an extremely limited manner.

Therefore, even when only the upper portion of the refrigerating chamber is used, all of the refrigerating chambers must be opened, which causes a problem that cold air in the refrigerating chamber is leaked to the lower side of the refrigerating chamber and the food freshness falls quickly.

When the door of the refrigerating compartment is frequently opened and used as described above, when the cold air of the refrigerating compartment is lost to the outside and the temperature of the refrigerating compartment increases, accordingly, the amount of power supplied to the refrigerator to lower the temperature of the refrigerating compartment to the preset temperature increases rapidly. There was a problem.

Conventionally, in order to solve the above problems, there was a refrigerator in which the doors of the refrigerating compartment were separated into two upper and lower stages.

Refrigerators equipped with two doors open the upper door only when using the upper part of the refrigerating compartment and open the lower door when using only the lower part of the refrigerating compartment, so that the cold air of the entire refrigerating compartment cannot escape to the outside at once. Relatively few open areas have the effect of reducing the loss of cold air.

However, the refrigerator equipped with two doors as described above has the effect of reducing the waste of cold air lost in the refrigerating compartment and reducing the amount of electricity. However, when the user needs to use the whole refrigerating compartment, food is stored in the refrigerating compartment. When removing or storing, there was an inconvenience of opening or closing each door separately each time, and even when each door was opened, there was a problem that each door rotated separately from the hinge shaft to hinder the user's work.

The present invention is provided to solve the above conventional problems, the technical problem to be achieved by the present invention is to configure the door of the refrigerating chamber in multiple stages, but using only the upper door separately to prevent the loss of cold air to maintain the freshness of food for a long time It is possible to maintain and solve the problem of inconvenience to the user's work by allowing the upper and lower doors to operate together when the upper and lower doors are used as needed.

To this end, the present invention, in the refrigerator door for opening and closing the refrigerating compartment is installed in each of the upper and lower doors and the upper and lower stages each handle is installed, the lower portion of the upper door mounted on the upper side of the refrigerating compartment is inclined downward toward the outer side A downward slope is formed, and an upper slope of an upper portion of the lower door mounted below the refrigerating chamber is configured to form an upward slope to be inclined upward inward so as to be combined with the downward slope of the upper door.

1 is a cross-sectional view showing the configuration of a multi-stage door for a refrigerator according to the present invention.

Figure 2 is a cross-sectional view showing the configuration of one embodiment of the upper and lower door detachment apparatus according to the present invention.

Figure 3 is a cross-sectional view showing the configuration of two embodiments of the upper and lower door detachment apparatus according to the present invention.

Figure 4 is a cross-sectional view showing the configuration of three embodiments of the upper and lower door detachment apparatus according to the present invention.

<Description of the symbols for the main parts of the drawings>

10: refrigerator 11: freezer

12: refrigerating chamber 20: upper door

21: downward slope 22: leaf spring

23: brace 24: brace storage room

25: elastic spring 26: spring storage chamber

26a: hanging step 27: connecting strap

28: upper door handle 29: rotation pulley

30: lower door 31: upward slope

32: removable groove 33: locking groove

34: lower door handle 35: permanent magnet

36: airtight cover

Hereinafter, the configuration and operation of the present invention will be described in detail with reference to the accompanying drawings.

1 is a cross-sectional view showing the configuration of a multi-stage door for a refrigerator according to the present invention.

As shown in Figure 1, the present invention, the upper door 20 and the lower door 30, each handle is installed on the front of the refrigerator compartment 12 in two stages up and down for the refrigerator to open and close the refrigerator compartment 12 In the door, the lower portion of the upper door 20 mounted above the refrigerating chamber 12 is inclined downward to the outside to form a downward inclined portion 31.

In addition, the upper portion of the lower door 30 mounted below the refrigerating chamber 12 forms an upwardly inclined portion 31 so as to be inclined upwardly inwardly so as to be mated with the downwardly inclined portion 21 of the upper door 20. The whole configuration is made.

It is noted that the door may be divided into three or more stages depending on the size of the refrigerator.

In the above, reference numeral 11 is a freezer compartment, 28 is an upper door handle, 34 is a lower door handle, and 36 is an airtight cover.

Figure 2 is a cross-sectional view showing the configuration of one embodiment of the upper and lower door detachment apparatus according to the present invention.

As shown in FIG. 2, the present invention is to add only the upper and lower door detachment devices to the same configuration as a whole, and look at the V-shaped portion at a predetermined position of the downward inclined portion 21 formed below the upper door 20. The leaf spring 22 is installed to protrude downward.

In addition, the upper inclined portion 31 formed in the upper portion of the lower door 30 to form a removable groove 32 in which the leaf spring 22 is detached at a position opposite to the leaf spring 22 according to the present invention. The upper and lower door detachment device is configured.

In the above, the leaf spring 22 is formed to be inclined upward at a predetermined angle in both the left and right directions about the center.

On the other hand, the leaf spring 22 is installed so as to protrude upward from the inclined portion 31 and the removable groove 32 to which the leaf spring 22 is removable may be formed in the downhill portion 21.

Figure 3 is a cross-sectional view showing the configuration of two embodiments of the upper and lower door detachment apparatus according to the present invention.

As shown in FIG. 3, the present invention includes a latch 23 that is hinged to the downward inclined portion 21 at a predetermined position of the downwardly inclined portion 21 formed at the lower portion of the upper door 20 toward the lower side. It is installed to protrude.

The latch 23 is formed to be obliquely inclined downward.

In addition, the downhill inclined portion 21 to which the latch 23 is hinged is formed with a latch storage chamber 24 in which the latch 23 is installed.

In addition, an elastic spring 25 is coalesced on the other end of the clasp 23 having one end hinged to the clasp storage chamber 24, and an upper portion of the clasp storage chamber 24 is provided on the elastic spring 25. The spring storage chamber 26 in which coal) is coalesced is communicated.

In addition, the upper end of the spring storage chamber 26 is formed with a locking step jaw (26a) to prevent the rise of the elastic spring (25), one end of the latch 23 is supported on the elastic spring 25 is an upper door The hinge is coupled to the upper door handle 28 is coupled to the connection (27) is made of the configuration (20).

In the above stop portion of the connecting strap 27 connecting the one end of the latch 23 and the upper door handle 28 may be provided with a rotation pulley 29 to switch the direction of the connecting strap 27.

Figure 4 is a cross-sectional view showing the configuration of three embodiments of the upper and lower door detachment apparatus according to the present invention.

As shown in FIG. 4, the upper and lower door desorption apparatus according to the present invention has a permanent magnet 35 in a predetermined position of the downward inclined portion 21 formed at the lower portion of the upper door 20 to permanently install the permanent magnet 35. It is configured to be coupled to the upward inclined portion 31 of the lower door 30 by magnetic force.

In the above, the permanent magnet 35 is not installed in the downward inclination portion 21 but in the upward inclination portion 31 of the lower door 30, or both in the downward inclination portion 21 and the upward inclination portion 31. It may be insulted.

Looking at the operation of the present invention made of a configuration as described above are as follows.

The multi-stage door for a refrigerator according to the present invention shown in FIG. 1 includes a door of the refrigerating chamber 12 that opens and closes the refrigerating chamber 12 in the refrigerator 10 partitioned into a freezer compartment 11 and a refrigerating compartment 12. ) And the lower door 30 are installed in two stages, and the upper inclination portion 21 and the lower door 20 formed on the lower side of the upper door 20 of the refrigerating chamber 12 are inclined downward. The upwardly inclined portions 31 formed to be inclined upwardly to the side are joined to each other.

As described above, when the user opens the upper door 20 in the refrigerating chamber 12 in a state in which the downward slope 21 and the upward inclination portion 31 are joined to each other, the upper door 20 is connected to the refrigerating chamber 12. Although open, the lower door 30 remains closed in the refrigerating chamber 12.

When the user uses only the upper portion of the refrigerating compartment 12 as described above, only the upper door 20 is opened and closed in the refrigerating compartment 12 and the lower door 30 maintains the refrigerating compartment 12 in a closed state, thereby lowering the lower door 30. Through this, the cold air lost to the outside can be blocked in advance.

In addition, when the user uses the lower part of the refrigerating compartment 12 or the entire refrigerating compartment 12, when the user pulls the handle of the lower door 30 to open the lower door 30 in the refrigerating compartment 12, the lower door 30 The lower inclination part 31 pushes the downward inclination part 21 in a state where the inclined inclination part 21 of the upper door 20 is in contact with each other so as to be joined to the upward inclination part 31 of the lower door 30. When opened at 12, the upper door 20 is also opened at the refrigerating compartment 12.

If only the lower door 30 is opened in the refrigerating chamber 12 as described above, the upper door 20 is opened together, so that when the user uses the whole of the refrigerating chamber 12, the upper door 20 and the lower door 30 derived from the prior art are used. Uncomfortable to open separately can be prevented in advance.

As described above, in order to seal the refrigerator compartment 12 again in the state where the entire upper and lower diagrams 20 and 30 of the refrigerator compartment 12 are opened, the lower door 30 may be closed by pushing only the upper door 20. By closing the refrigerating compartment 12 together, the user can eliminate the conventional inconvenience of closing the upper door 20 and the lower door 30 separately, and can block the refrigerating compartment 12 more quickly and conveniently. The loss of cold air of (12) can be reduced, and the user can use it more easily and conveniently.

On the other hand, even when the user uses only the lower portion of the refrigerating chamber 12, if the lower door 30 is opened, the upper door 20 is opened together, so there is a lot of cold air lost to the outside, but cold air is colder than the outside air, so When the upper door 20 of the refrigerating chamber 12 is closed, only the lower door 30 is opened in the refrigerating chamber 12, but the cold air stored in the upper part of the refrigerating chamber 12 is lowered in the refrigerating chamber 12. Since the refrigerator 30 is lost to the outside through the door 30, there is almost no difference in the cold air loss due to the entire opening of the refrigerating chamber 12 and only the lower portion of the refrigerating chamber 12.

In addition, the upper and lower door desorption apparatus according to an embodiment of the present invention shown in Figure 2, the V-shaped leaf spring 22 downward in a predetermined position of the downward inclined portion 21 formed in the lower portion of the upper door 20 It is installed to protrude, and the leaf spring 22 is detached at a position opposite to the leaf spring 22 to the upward inclined portion 31 formed in the upper portion of the lower door 30 to be joined to the downwardly inclined portion 21. It is configured to form a removable groove 32, the upper and lower doors (20), 20 in the state in which all of the refrigerating chamber (12) opening and closing the leaf spring 22 formed in the V-shaped coupled to the removable groove (32) It becomes a state.

Looking at the process of opening the upper door 20 in the refrigerating chamber 12 in a state in which the leaf spring 22 is coupled to the removable groove 32 as described above, first, the upper door 20 is opened in the refrigerating chamber 12. In order to pull the upper door 20, the leaf spring 30 installed in the upper door 20 generates a predetermined resistance force to be removed from the detachable groove 32.

As described above, even when the leaf spring 22 generates a resistance force in the detachable groove 32 and pulls the lower door 30 together, the permanent magnet is entirely installed on the adhesive surface of the lower door 30 in contact with the refrigerating chamber 12. Since the lower door 30 is bonded to the refrigerating chamber 12 by the permanent magnet, the attraction force is relatively greater than the resistance generated to remove the leaf spring 22 from the detachable groove 32.

Therefore, when only the upper door 20 is to be opened in the refrigerating chamber 12, when only the upper door 20 is pulled forward, the lower door 30 is sealed in the refrigerating chamber 12, and the leaf spring 22 is detachable. The upper door 20 is opened in the refrigerating chamber 12 while being slidably removed at 32.

In addition, in order to open the upper door 20 and the lower door 30 together in the refrigerating chamber 12, when only the lower door 30 is pulled out and opened, the upper door 20 and the lower door 30 are the same. .

On the other hand, in the state in which the upper door 20 and the lower door 30 are opened together in the refrigerating chamber 12 by pulling the lower door 30, the leaf spring 22 is maintained in a state coupled to the removable groove 32 The upper door 20 and the lower door 30 are operated in the open state without moving apart from each other.

As described above, when the upper door 20 and the lower door 30 are operated together by the leaf spring 22 and the removable groove 32, the user can open any door regardless of the lower door 30 or the upper door 20. When closed, the upper and lower doors 20 and 30 seal the refrigerating chamber 12 at the same time, thereby increasing convenience of use.

And, the upper and lower door desorption apparatus according to the second embodiment of the present invention shown in Figure 3, one end is hinged to the downward inclination portion 21 and the other end of the latch 23 held in the elastic spring 25 is the upper door It is configured to be connected to the upper door handle 28 hinged to the connection (27) by the connecting strap 27, the latch 23 is removed from the locking groove 33 by the upper door handle 28 and the elastic spring (25) Bar by the latch 23 is to be restored to the lower side, look at the operation process thereof as follows.

In the state in which the upper door 20 and the lower door 30 seal the refrigerating chamber 12, the latch 23 that is supported by the elastic spring 25 protrudes downward of the latch storage chamber 24 so as to upwardly incline ( 31 is caught in the engaging groove 33 formed in.

When the catch 23 is caught in the catching groove 33 as described above, the upper door 20 and the lower door 30 are integrated and made to operate together.

In order to open only the upper door 20 in the refrigerating chamber 12 in the above state, one end is connected to the upper door handle 28 by pulling the upper door handle 28 hinged to the upper door 20. 27).

When the upper door handle 28 is pulled as described above to pull one end of the connecting string 27, the latch 23 connected to the other end of the connecting string 27 is raised together, and the latch 23 is caught by the locking groove 33. Removed from

When the latch 23 is removed from the locking groove 33 as described above, only the upper door 20 can be opened in the refrigerating chamber 12.

Then, when the upper door 20 is released from the refrigerating chamber 12 as described above, by releasing the upper door handle 28 to release the tension on the connecting strap 27, the one end of the latch 23 is supported. The clamping force 23 of the elastic spring 25 is lowered downward by an arc motion in a state in which the latch 23 is hinged to the downwardly inclined portion 12.

As described above, when the clasp 23 is supported by the elastic spring 25 and descends downward, the connecting strap 27 and the upper door knob 38 which are connected to the clasp 23 in turn are restored to their original positions.

And, in order to recombine the upper door 20 and the lower door 30 in a state where the upper door 20 is separated from the lower door 30 as described above, since the bottom surface of the latch 23 is formed obliquely inclined. When the bottom surface of the clasp 23 is brought into contact with the lower door 30 by pushing the upper door 20, the inclined portion (unsigned) formed at the bottom of the clasp 23 abuts the top of the lower door 30. While being raised to the upper by the circular motion, the upper latch 20 is engaged with the upper door 20 and the lower door 30 as the latch 23 is fixed to the locking groove 33 formed in the upward tilting part 31.

The present invention operating as described above can further increase the coupling force of the upper door 20 and the lower door 30 by the latch 23.

In addition, the upper and lower door desorption apparatus according to the third embodiment of the present invention shown in Figure 4, the permanent magnet 35 in the predetermined position of the downward inclined portion 21 formed in the lower portion of the upper door 20 The operation is similar to the upper and lower door desorption apparatus according to an embodiment of the present invention.

In the state in which the upper and lower doors 20 and 30 open and close all the refrigerating chambers 12, the permanent magnet 35 installed in the downward slope 21 is attached to the upward slope 31 by magnetic force. do.

Looking at the process in which the upper door 20 is opened in the refrigerating chamber 12 in a state in which the permanent magnet 35 is coupled to the upward tilting portion 31 by magnetic force, first, the upper door 20 is opened in the refrigerating chamber 12. When the upper door 20 is pulled to open at), the permanent magnet 35 built into the downwardly inclined portion 21 of the upper door 20 generates a predetermined magnetic force to be removed from the upwardly inclined portion 31. Let's go.

Even though the permanent magnet 35 generates magnetic force as described above and pulls the lower door 30 together, the magnetic force of the permanent magnet installed on the adhesive surface of the lower door 30 in contact with the refrigerating chamber 12 is relatively much stronger. Only the upper door 20 is opened in the refrigerating chamber 12.

In addition, in order to open the upper door 20 and the lower door 30 together in the refrigerating chamber 12, when only the lower door 30 is pulled out and opened, the upper door 20 and the lower door 30 are the same. .

In addition, when the upper door 20 and the lower door 30 are opened together in the refrigerating chamber 12 by pulling the lower door 30, the permanent magnet 35 is coupled to the upward inclination part 31 by a magnetic force. Since the upper door 20 and the lower door 30 are kept open, they move together without moving separately from each other.

As described above, when the upper door 20 and the lower door 30 are moved together by the permanent magnet 35, the user closes any door regardless of the lower door 30 or the upper door 20, and the upper and lower doors 20 ), 30 is to seal the refrigerating compartment (12_) at the same time can increase the ease of use.

As described above, the multi-stage door for a refrigerator according to the present invention may be equipped with an upper door and a lower door separately in a refrigerating compartment to use only the upper part of the refrigerating compartment according to a user's needs, thereby reducing the cold air chamber to maintain food freshness for a long time. And, by reducing the cold air chamber can reduce the waste of power together, when using the entire refrigerating chamber when the user only opens the lower door is configured to open the upper door together to increase the user's convenience.

Claims (4)

In the door for the refrigerator for opening and closing the refrigerating chamber 12, the upper door 20 and the lower door 30, each of which the handles 28, 34 are installed are mounted in two stages. The lower portion of the upper door 20 mounted on the upper side of the refrigerating chamber 12 is inclined downward toward the outer side to form a downward inclined portion 21, An upper portion of the lower door 30 mounted below the refrigerating chamber 12 is configured to form an upward inclined portion 31 to be inclined upwardly inwardly so as to be mated with the downwardly inclined portion 21 of the upper door 20. Multi-stage door for refrigerator characterized by the above. According to claim 1, V-shaped leaf spring 22 is installed to protrude downward at a predetermined position of the downward inclined portion 21 formed in the lower portion of the upper door 20, Refrigerator multi-stage door, characterized in that formed on the upper inclined portion 31 formed in the upper portion of the lower door (30) to form a removable groove (32) in which the leaf spring 22 is detached. The method of claim 1, wherein one end is hinged to a predetermined position of the downward inclined portion 21 formed in the lower portion of the upper door 20, the latch 23 is formed to be inclined downward to the lower side of the downward inclined portion 21. Installed to protrude, The downhill inclination portion 21 to which the latch 23 is hinged is formed with a latch storage room 24 to which the latch 23 is installed. An elastic spring 25 is coalesced into the other end portion of the latch 23 whose one end is hinged to the latch housing 24. A spring storing chamber 26 in which the elastic spring 25 is coalesced is communicated with the upper portion of the latch storing chamber 24. The upper end of the spring storage chamber 26 is formed with a locking step (26a) to prevent the rise of the elastic spring 25, One end of the clasp 23 which is supported by the elastic spring 25 is connected to the upper door handle 28 hinged to the upper door 20 by a connecting strap 27, characterized in that configured for the refrigerator. The refrigerator according to any one of claims 1 to 3, wherein the permanent magnet 35 is built in a predetermined position of the downward inclined portion 21 formed below the upper door 20. .