JPH10300340A - Refrigerator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To determine the setting temperature of each storage part easily. SOLUTION: A slide member 24 having a magnet is provided at the door 22 of a switching chamber 16, and two or more magnetic force receiving parts 46 are provided at the front surface of a partition 42 which corresponds to the position at which the magnet moves, so as to constitute a lead switch, which is connected with a control substrate to operate the slide member 24, so that the interior temperature of the switching chamber 16 can be set.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a refrigerator.

[0002]

2. Description of the Related Art Refrigerators are provided with storage rooms such as a refrigerator room, a freezer room and a vegetable room, and the temperature in the refrigerator is set for each room. The setting of the internal temperature of each storage room can be switched. The operation panel for switching the temperature in the refrigerator was provided at one place in the refrigerator.

[0003] For example, the operation panel may be provided near the bottom of the refrigerator compartment.

[0004]

However, if the operation panel is provided at one place as described above, if the number of storage rooms such as a refrigerator room increases, it is desired to switch the operation place and the temperature. There is a problem that the collation of the storage room becomes troublesome and sometimes an error occurs.

[0005] When the operation panel is intensively installed on the side surface of the interior of the rotary door, if the operation panel is arranged in a place with good operability with the right-opening door, the reverse operation is performed in the case of the left-opening door. And the operation becomes difficult.

In addition, when storing items in each storage room, it is necessary to open a different door to check which set temperature the storage room is at, and sometimes to fail to check the temperature. There is a problem that misplacement of stored items occurs.

Furthermore, it is difficult for a person other than the user to change the set temperature, and it is difficult to notice whether or not the set temperature has been changed unless looking at the operation panel.

Accordingly, the present invention has been made in view of the above problems, and provides a refrigerator in which the set temperature of each storage room can be easily determined.

[0009]

According to a first aspect of the present invention, there is provided a refrigerator having a storage room provided inside a cabinet, a door provided on a front surface of the storage room, and control means inside the cabinet. In a refrigerator, of the reed switch including a magnet and a magnetic force receiving means for performing on / off by receiving the magnetic force, the magnet is provided at a rear portion of the door, and a magnet operating means is provided on a front surface of the door.
Magnetic force receiving means is provided at a position of the cabinet corresponding to the magnet, and the reed switch is electrically connected to the control means.

A refrigerator according to a second aspect is the refrigerator according to the first aspect, wherein the door is of a drawer type.

According to a third aspect of the present invention, there is provided a refrigerator according to the first aspect, wherein the control means is operated by operating the operation means.
The set temperature of the inside temperature of the storage chamber is changed.

According to a fourth aspect of the present invention, in the refrigerator according to the first aspect, when the door is opened and the magnet and the magnetic force receiving means are separated from each other, the control means sends the cold air to the storage chamber. Is to close.

A refrigerator according to a fifth aspect of the present invention is the refrigerator according to the first aspect, wherein the door is provided with display means for displaying an operation state of the operation means.

According to the refrigerator of the first aspect, since the operation means is provided on the front surface of the door, the operation becomes easy,
Further, the control means can be operated by the operation means without performing electric wiring between the door and the cabinet.

According to the refrigerator of the second aspect, even if the door is a drawer type, the operating means can be provided on the front surface of the door without performing electrical wiring between the door and the cabinet.

According to the refrigerator of the third aspect, the setting of the temperature inside the storage room can be changed by the operation means provided on the front surface of the door.

In the refrigerator according to the fourth aspect, since the damper closes when the door is opened, even when the door is opened, cool air does not leak to the outside.

According to the refrigerator of the present invention, the door is provided with the display means for displaying the operation state of the operation means.
The operation contents can be known.

[0019]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A refrigerator 1 according to a first embodiment of the present invention.
0 will be described with reference to FIGS.

FIG. 2 is a perspective view of the refrigerator 10 of the present embodiment. In the cabinet 12 of the refrigerator 10, a refrigerator compartment 14, a switching compartment 16, a freezing compartment 18, and a vegetable compartment 20 are provided from the upper stage.

FIG. 1 is an enlarged perspective view of a main part showing the switching chamber 16 and its door 22, and FIG. 3 is a partially enlarged longitudinal sectional view when the door 22 is closed.

At the upper part of the door 22, a slide member 24 as shown in FIG. 4 is provided. This slide member 24
At the front end of the slide portion main body 28, which is a rod-shaped main body,
A display plate 26 is provided, and "Frozen", "Partial", "Chilled", and "Refrigerated" are described in parallel on the front surface thereof. At the rear end of the slide portion main body 22, a storage portion 32 that stores the cubic magnet 30 is provided. In addition, a knob 34 protrudes upward from the center of the slide body 28.

As shown in FIGS. 1 and 3, a window 36 for exposing the display contents of the display panel 26 is provided at the center of the front surface of the door 22. A long hole 38 is provided in the upper part of the door 22 in the left-right direction, and the knob portion 34 protrudes from the long hole 38 so that the knob portion 34 can slide along the long hole 38. A storage portion 32 of the slide member 24 protrudes from a rear portion of the door 22. Note that the gasket 40 is disposed below the storage section 32.

A partition 4 for separating the refrigerator compartment 14 and the switching compartment 16
A reed switch main body 44 is disposed on the front surface of 2. The reed switch body 44 and the magnet 3
A reed switch is constituted by 0.

The reed switch main body 44 comprises four magnetic force receiving portions 46 and a circuit portion 48 containing an electric circuit. The circuit unit 48 is connected to a control board provided on the upper rear surface of the cabinet 12 by lead wires.

As shown in FIG. 1, four magnetic force receiving portions 46 are provided on the front surface of the partition portion 42 in the left-right direction. When the magnet 30 moves to each of these four positions, the reed switch is turned on. / OFF.

Next, a circuit configuration including a reed switch and a control board will be described with reference to FIG.

Reed switches L1, L2, L3, L4
Are the magnet 30, the four magnetic force receiving portions 46, and the circuit portion 48.
, And each of the reed switches L1, L
2, L3 and L4 are connected in parallel via four resistance elements Ra, Rb, Rc and Rd. One end of the resistance element Ra is connected to a DC power supply 5V, and the resistance element Rd
Is grounded.

The four reed switches L1, L2, L3, L4 provided in this way are connected to the CP via the resistance element R2.
U (central processing unit) is connected to a first input terminal 62. Note that the CPU is provided on the control board. A resistance element R3 and a capacitor C1 are connected to both ends of the resistance element R2, respectively, which are grounded.

A second temperature input sensor 64 provided inside the switching chamber 16 is connected to a second input terminal 64 of the CPU via a resistance element R4. A DC power supply of 5 V is applied to the inside temperature detection sensor S1.

Further, a triac T1 is connected to an output terminal 66 of the CPU via a switching transistor Tr1.
Is connected. This triac T1 is for moving a motor damper.

An operation state of the circuit having the above configuration will be described.

When the set temperature is constant, the change in resistance of the internal temperature detection sensor S1 is input to the CPU, and the motor damper M1 is turned on / off through the triac T1.
The internal temperature is controlled within the set temperature range.

On the other hand, when the knob 34 is moved, the magnet 30 moves accordingly, and the reed switches L1, L2, L3, L4 which are turned ON / OFF change. When the ON / OFF state of the reed switch changes, the resistance changes, and the voltage applied to the CPU changes. The CPU changes the set temperature according to the change in the voltage. When all four reed switches are turned off, the door 22 is opened and the motor damper M1 is stopped.

A case where the set temperature of the switching chamber 16 of the refrigerator 10 having the above configuration is switched will be described.

The user pulls the door 22 slightly forward as shown in FIG. 1 and moves the knob 34 in the left-right direction.
Set the temperature to be changed. This switching state is indicated by the window 36
Is displayed on the screen, so that the user can immediately determine the state.

When the knob 34 is moved, the magnet 30
Moves to the left and right, and the reed switches that are turned on / off are different accordingly, so that the set temperature changes as described in the operation state of the circuit.

Thus, the user can set the temperature of the switching chamber 16 corresponding to the door 22 simply by sliding the knob 34 on the front of the door 22.

Since no electrical wiring such as a lead wire is connected between the door 22 and the cabinet 12, the door 22 can be removed from the cabinet 12 for cleaning or the like. Further, the user can determine at a glance which temperature zone the switching chamber 16 is currently set by looking at the window 36.

In the above embodiment, the operation unit is provided on the door 22 only on the front surface of the switching room 16, but instead of this, the refrigerating room 1
4. Operation sections for temperature setting may be provided on all doors of the freezer compartment 18 and the vegetable compartment 20. In this case, the temperature can be set for each room, and the state can be easily grasped.

Further, in the above embodiment, only the temperature setting is set by the knob portion 34, but a switch for performing other control, for example, forced defrosting, may be provided on the door 22.

Next, a second embodiment will be described with reference to FIGS.

The difference between the present embodiment and the first embodiment lies in the structure of the operation portion provided on the door 22.

In the first embodiment, the slide member 24 is provided. In this embodiment, a column-shaped knob 52 is rotatably disposed above the door 22. On the peripheral surface of the knob 52,
As shown in FIG. 7, “refrigerated”, “frozen”,... Are displayed, and a window 54 is provided so that the display portion is exposed on the door 22.

A first gear 56 is provided on the upper surface of the knob 52, and a second gear 58 is provided so as to mesh with the first gear 56.

On the other hand, the storage unit 3 storing the magnet 30
A rack 60 is provided on the front surface of the second gear 2 and meshes with the second gear 58. Thus, by rotating the knob 52, the storage unit 32 is configured to slide in the left-right direction.

Even with this structure, the set temperature inside the switching chamber 16 can be changed by rotating the knob 52, and the current set temperature can be confirmed from the window 54.

[0048]

As described above, according to the refrigerator of the first aspect of the present invention, since the operating means can be provided on the front surface of the door without electrically connecting the cabinet and the door, the door can be mounted on the cabinet. For cleaning.
Further, since the operating means is provided on the front surface of the door, the user can easily perform the operation.

According to the refrigerator of the second aspect, even if the door is of the drawer type, the operating means can be provided on the front surface of the door without performing electrical wiring between the door and the cabinet.

According to the refrigerator of the third aspect, the set temperature of the internal temperature can be changed by operating the operation means, so that the set temperature can be easily changed and the set temperature corresponding to each room can be changed. Easy to set.

According to the refrigerator of the fourth aspect, since the damper is closed with the door open, the cool air does not leak to the outside.

In the refrigerator according to the fifth aspect, since the display means for displaying the operation of the operation means is provided on the door, the current operation state can be easily grasped.

[Brief description of the drawings]

FIG. 1 is an enlarged perspective view of a main part of a refrigerator showing a first embodiment of the present invention.

FIG. 2 is an overall perspective view of the refrigerator.

FIG. 3 is an enlarged longitudinal sectional view of a main part of the refrigerator.

FIG. 4 is a perspective view of a slide member.

FIG. 5 is an electric circuit diagram for determining a set temperature.

FIG. 6 is a perspective view of a door according to a second embodiment.

FIG. 7 is a perspective view of the knob.

FIG. 8 is an enlarged cross-sectional view of the door.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Refrigerator 16 Switching room 22 Door 24 Slide member 26 Display part 30 Magnet 40 Reed switch main body 46 Magnetic force receiving part 48 Circuit part

Claims (5)

[Claims] 1. A storage room is provided inside a cabinet,
In a refrigerator having a door provided on a front surface of the storage room and having control means inside the cabinet, the magnet is preferably a reed switch comprising a magnet and magnetic force receiving means for turning on / off by receiving the magnetic force. Provided at a rear portion of the door, provided with operation means for the magnet on the front surface of the door, provided with magnetic force receiving means at a position of the cabinet corresponding to the magnet, and electrically connected the reed switch to the control means. A refrigerator characterized by that: 2. The refrigerator according to claim 1, wherein said door is of a drawer type. 3. The refrigerator according to claim 1, wherein the control means changes a set temperature of a temperature inside the storage chamber by operating the operation means. 4. The apparatus according to claim 1, wherein when the door is opened and the magnet and the magnetic force receiving means are separated from each other, the control means closes a damper for sending cool air to the storage chamber. refrigerator. 5. The refrigerator according to claim 1, wherein said door is provided with display means for displaying an operation state of said operation means.