JP7133605B2 - refrigerator - Google Patents

Description

Embodiments of the present invention relate to refrigerators.

In conventional refrigerators, when the temperature inside the refrigerator compartment is lower than the outside air temperature, dew condensation may occur on the vertical partition of the door when the double doors of the refrigerator compartment are opened and closed. For this reason, as disclosed in Patent Document 1 and Patent Document 2, a heater is arranged at the position of the vertical partition of the door of the refrigerating compartment in order to prevent dew condensation.

In Patent Document 1, the energization rate of the heater of the vertical partition is determined by the outside air temperature around the refrigerator obtained from an existing sensor of the refrigerator. Further, in Patent Document 2, the energization rate of the heater of the vertical partition is determined by the cooling state in the refrigerating compartment obtained from an existing sensor arranged in the refrigerator.

Japanese Patent Application Laid-Open No. 2008-70041 Patent No. 5656494

In conventional refrigerators, even if the energization rate of the heater of the vertical partition is determined by the outside air temperature obtained from the sensor or the cooling state inside the refrigerator obtained from the existing sensor arranged in the refrigerator, The positions of these sensors are located away from the positions of the heaters in the vertical partitions.

Therefore, these sensors cannot accurately determine the actual temperature conditions around the heater of the vertical partition. Therefore, the value of the energization rate of the heater in the vertical partition must have a margin within a certain range, and the heater in the vertical partition requires extra power consumption for energization. can't be changed.

The present invention has been made in view of the above, and its object is to accurately grasp the temperature situation around the heater of the vertical partition so that the heater does not need to consume extra power for energization. To provide a refrigerator capable of saving energy.

A refrigerator according to an embodiment of the present invention includes a main body, a left door and a right door for opening and closing a front opening of the main body, a vertical partition provided between the left door and the right door, and a door inside the vertical partition. a heater provided in the vertical partition, a sensor provided in the vertical partition, and a control unit for controlling an output value to the heater, and a heat insulating material is provided between the heater and the sensor in the vertical partition is arranged, the sensor is arranged in the vertical partition at a position where the heat insulating material is absent, and the controller determines the output value to the heater based on the input value from the sensor .
Further, the refrigerator according to the embodiment of the present invention includes a main body, a left door and a right door for opening and closing a front opening of the main body, a vertical partition provided between the left door and the right door, and the vertical a heater provided inside the partition; a sensor provided inside the vertical partition; A heat insulating material is disposed, the heat insulating material is a vacuum heat insulating material, and the controller determines an output value to the heater based on an input value from the sensor.
Further, the refrigerator according to the embodiment of the present invention includes a main body, a left door and a right door for opening and closing a front opening of the main body, a vertical partition provided between the left door and the right door, and the vertical a heater provided inside the partition; a sensor provided inside the vertical partition; A heat insulating material is disposed, the sensor is disposed at a location communicating with the outside air, and the controller determines an output value to the heater based on an input value from the sensor.

BRIEF DESCRIPTION OF THE DRAWINGS It is a front view which shows the whole refrigerator of 1st Embodiment of this invention. It is a perspective view which shows the inner surface side of the door of the left side provided with the vertical partition part shown in FIG. It is the front view which looked at the vertical partition part shown in FIG. 2 from the R direction. FIG. 4 is a diagram showing an example in which a control unit determines an energization rate of a heater; It is a figure which shows the positional relationship example of a heater and a sensor. FIG. 5 is a diagram showing a preferred shape example of a vertical partition and a heat insulating material arranged in the vertical partition; FIG. 7 is an end view of the vertical partition in FIG. 6 taken along line LL; FIG. 3 is a diagram showing an arrangement example of magnets, heaters, and heat insulating materials shown in FIG. 2 ; FIG. 11 shows a second embodiment of the present invention, and shows a structural example of the lower end side of the vertical partition. It is a front view which shows 3rd Embodiment of this invention.

EMBODIMENT OF THE INVENTION Hereinafter, the form (it is hereafter called embodiment) for implementing this invention is demonstrated using drawing.

<First Embodiment>
FIG. 1 is a front view showing the entire refrigerator according to the first embodiment of the present invention. FIG. 2 is a perspective view showing the inner surface side of the left door 7 having the vertical partition 20 shown in FIG. 1, but the vertical partition 20 is enlarged for clarity. FIG. 2(a) shows the door 7 on the left side and the vertical partition 20 in a simplified manner, and FIG. 2(b) shows a structural example of the vertical partition 20 shown in FIG. 2(a). FIG. 3 is a front view of the vertical partition 20 shown in FIG. 2 as seen from the R direction.

A refrigerator 1 shown in FIG. 1 has a main body 1A. A main body 1A of the refrigerator 1 is composed of a cabinet having an outer case made of outer side plates and an inner case made of inner side plates, and a heat insulating material arranged between the outer and inner cases. . A plurality of storage chambers are formed inside the main body 1A.

As the plurality of storage compartments, as shown in FIGS. 1 and 2, a refrigerating compartment 2 as a refrigerating compartment and a vegetable compartment 3 are provided in order from the top. Below the vegetable compartment 3 is an ice-making compartment as a freezing compartment. 4 and an upper freezer compartment 5 are provided side by side, and a lower freezer compartment 6 as a freezer compartment is provided at the bottom.

As shown in FIG. 1 , left and right doors 7 and 8 are provided on the front surface of the refrigerator compartment 2 to open and close the front opening of the refrigerator compartment 2 . The left and right doors 7 and 8 are double doors, and the left end of the left door 7 is rotatably attached by a hinge (not shown). Similarly, the right end of the right door 8 is rotatably attached by a hinge (not shown). Drawer-type doors 9, 10, 11 and 12 for opening and closing the respective front openings are provided on the front surfaces of the vegetable compartment 3, the ice making compartment 4, the upper freezer compartment 5 and the lower freezer compartment 6, respectively.

As shown in FIG. 1, a vertical partition 20 is provided along the vertical direction (Z direction) between the left door 7 and the right door 8 . The left door 7 and the right door 8 are split left and right as described above and are rotated in a double-door manner. A vertical partition 20 is provided, for example, at the longitudinal inner edge of the left door 7 in order to prevent the intrusion of dust.

For example, inside the vertical inner end of the left door 7, the vertical partition 20 preferably rotates counterclockwise as viewed from above about a vertical rotation shaft (not shown) of a spring (not shown). By force, it can be rotated by an angle of 90 degrees, for example.

When the left door 7 closes the left side of the front opening of the refrigerator compartment 2, the vertical partition 20 is parallel to the left door 7 as shown in FIG. When opened, the vertical partition 20 rotates 90 degrees counterclockwise with respect to the left door 7 about the vertical rotation axis, and retreats to the rear side of the left door 7. .

When the left side door 7 closes the left side of the front opening of the refrigerator compartment 2 again, the vertical partition 20 is pushed by the main body 1A to move against the left side door 7 against the force of the spring. When viewed from above, the vertical partition 20 rotates 90 degrees clockwise around the vertical rotation axis to close the gap between the left door 7 and the right door 8. - 特許庁

The vertical partition 20 shown in FIGS. 2 and 3 has the heat insulating material 50 shown in FIG. 3 and a plurality of magnets 60 shown in FIG. A magnetic material member such as a thin steel plate is arranged at the inner end portion of the right door 8 in the vertical direction so as to be magnetically attracted by the magnet 60 . As a result, when the left door 7 and the right door 8 are closed, the magnet 60 of the vertical partition 20 on the left door 7 side is brought into close contact with the magnetic material member such as the thin steel plate of the right door 8 and closed. , the circulation of air inside and outside the refrigerator compartment 2 is cut off.

The vertical partition 20 shown in FIGS. 2 and 3 has a shape elongated in the vertical direction (Z direction), and the cold air in the refrigerator compartment 2 shown in FIG. 8 is provided so as not to leak to the outside.

As shown in FIG. 3, a heater 30 is provided inside the vertical partition 20 as indicated by a dashed line. Since the front side of the vertical partition 20 is open air and the inner side is cold air, dew condensation is likely to occur on the front side. Since black mold or the like grows on the dew condensation, it is necessary to prevent dew condensation on the vertical partition 20 . A heater 30 is provided in the vertical partition 20 to prevent this dew condensation. The heater 30 is arranged inside the vertical partition 20 in a loop shape, for example, in a region from a position slightly lower than the upper end 21 of the vertical partition 20 to a lower end 22 . The control unit 100 shown in FIG. 3 is arranged, for example, on a control board 110 installed on the upper part of the main body 1A of the refrigerator 1 shown in FIG.

Heater 30 shown in FIG. 3 generates heat by being energized from control board 110 according to a command from control unit 100 in order to prevent dew condensation caused by a temperature difference between inside refrigerating chamber 2 shown in FIG. 1 and outside air. The ratio of power supplied to the heater 30 , that is, the value of the energization rate of the heater 30 is controlled by the controller 100 .

In order to prevent condensation, it is necessary for the heater 30 to raise the temperature of the vertical partition 20 to a temperature at which condensation does not occur. . The control board 110 energizes the heater 30 according to a command from the control unit 100 so as to keep the temperature at the limit so that dew condensation does not occur due to the temperature difference between the inside of the refrigerator compartment 2 and the outside air. The energization is controlled so as not to consume excessive power.

In a conventional refrigerator, a temperature sensor already installed on the left door side or the right door side measures the outside air temperature used to control the entire refrigerator, and the measured value is used as a reference value to detect the vertical temperature. The heating rate of the heater is determined by determining the energization rate of the partition heater. However, the energization rate of the heater referred to by the originally installed temperature sensor for measuring the outside air temperature is determined with some leeway based on the expected energization rate that will not cause dew condensation. there is

Therefore, in the refrigerator 1 of the embodiment of the present invention, in order to accurately grasp the outside air temperature and humidity of the vertical partition 20 itself shown in FIG. placed inside. This dedicated sensor 40 is arranged inside the upper end portion 21 of the vertical partition portion 20 , and the sensor 40 is arranged at a predetermined distance from the upper end portion 31 of the heater 30 . This prevents the sensor 40 from being affected by the heat generated by the heater 30 .

The vertical partition 20 is preferably a member made of resin, which is easier to mold and process than metal. Thereby, the required shape of the vertical partition 20 can be obtained by molding or processing substantially freely.

If the sensor board on which the sensor is mounted is normally installed together with the heater in a closed space in the same space within the vertical partition, the sensor will be affected by the heat of the heater in the closed space, causing the sensor to will not be able to obtain more correct detection values. Originally, the vertical partition is a place where temperature changes occur frequently and dew condensation occurs easily. Therefore, when dew condensation occurs, there is a possibility that a short circuit may occur in the sensor itself or the sensor substrate itself.

Therefore, in the first embodiment of the present invention, as described above, the vertical partitions 20 are made of resin and, for example, injection parts are adopted, which facilitates molding and processing. Therefore, as illustrated in FIG. 3, the vertical partition 20 can preferably be easily provided with a plurality of ventilation holes 26 . By providing a plurality of ventilation holes 26 in this manner, ventilation can be ensured for the sensor 40 in the vertical partition section 20 . Therefore, the detection rate of the detection value of the sensor 40 can be increased, dew condensation between the sensor 40 itself and the sensor substrate 41 can be prevented, and a short circuit can be prevented.

As shown in FIG. 3, heater 30 is surrounded by heat insulating material 50 . As already described, the heat insulating material 50 is arranged inside the vertical partition portion 20 from a position lower than the upper end portion 21 of the vertical partition portion 20 by a predetermined distance to the inside of the lower end portion 22 . As the heat insulating material, for example, expanded polystyrene or a vacuum heat insulating material can be used.

As shown in FIG. 3, this sensor 40 is mounted on a sensor substrate 41 . The sensor substrate 41 is arranged in the space inside the upper end portion 21 of the vertical partition portion 20 . As the sensor 40 shown in FIG. 3, at least one of a dew condensation sensor for detecting dew condensation, a temperature sensor for detecting outside air temperature, and a humidity sensor for detecting humidity, or preferably a combination of two or more types. can be mounted on the sensor substrate 41.

In this way, as the sensor 40, at least one of a dew condensation sensor, a temperature sensor, and a humidity sensor, or more preferably a combination of two or more, can be used to ascertain a more detailed surrounding situation of the vertical partition 20. It is possible to more accurately determine the energization rate of the heater 30, which is effective for preventing dew condensation in the vertical partition 20 and saving energy.

Here, an example in which the controller 100 shown in FIG. 3 determines the energization rate of the heater 30 will be described with reference to FIG. 4 . FIG. 4 shows an example in which the controller 100 determines the energization rate of the heater 30 based on the detected temperature and humidity near the vertical partition 20 .

In FIG. 4, when the temperature sensor constituting sensor 40 shown in FIG. is determined to be 100%.

In FIG. 4, the temperature sensor constituting the sensor 40 detects a temperature of less than 30° C., but when the humidity sensor constituting the sensor 40 detects a humidity of 80% or more, the control unit 100 detects that the heater 30 is energized. The rate is decreased from 100% to 75%, and the amount of heat generated by the heater 30 is decreased in response to the decrease in temperature.

Furthermore, in FIG. 4, when the temperature sensor constituting the sensor 40 detects a temperature of less than 30° C. and the humidity sensor constituting the sensor 40 detects a humidity of less than 80%, the controller 100 energizes the heater 30. The rate is further reduced from 75% to 50% to further reduce the amount of heat generated by the heater 30 as the humidity decreases. In this manner, the control unit 100 changes and determines the energization rate of the heater 30 according to the temperature detection value from the temperature sensor and the humidity detection value from the humidity sensor.

FIG. 5 shows an example of the positional relationship between the heater 30 and the sensor 40. As shown in FIG.

As shown in FIG. 5, the heater 30 is, for example, a linear heater, and is a sparse and dense heater having a sparse heater winding portion 30M and a dense heater winding portion 30N. The number of turns per unit length of the sparse portion 30M is set smaller than the number of turns per unit length of the dense portion 30N. However, the sparseness and denseness of the heaters 30 may be formed by changing the coating thickness of the resistance material and the resistance material.

In the example of FIG. 5, the sparse portion 30M is arranged near the upper end portion 21 and the lower end portion 22 side of the vertical partition portion 20, and the dense portion 30N is formed between the sparse portions 30M and 30M. there is The dense portion 30N generates more heat per unit length than the sparse portion 30N.

As shown in FIG. 5, the sensor 40 is spaced apart from the sparse portion 30M of the heater 30 by a predetermined distance D, and is also spaced considerably from the dense portion 30N. This prevents the heater 30 from being affected by the heat from the sparse portion 30M and the dense portion 30N. In addition, since the sensor 40 is separated from the sparse portion 30M of the heater 30 by the predetermined distance D, the noise from the heater 30 is prevented and the accuracy of the detection value of the sensor 40 is prevented from being lowered. I'm in.

As shown in FIG. 3 , the sensor 40 is electrically connected to the control board 110 having the control section 100 by the sensor cable bundle 70 . Also, the heater 30 is electrically connected to the control board 110 by a heater bundle 80 . However, in the embodiment shown in FIG. 3 , the sensor bundle 70 and the heater bundle 80 are integrated as one lead-out wiring portion 90 , and this lead-out wiring portion 90 extends vertically from the inside of the vertical partition portion 20 . It is led out to the outside through an opening 95 at the same one location of the partition section 20 .

In this way, the sensor bundle 70 and the heater bundle 80 are formed as one lead-out wiring portion 90. Therefore, the vertical partition portion 20 has one lead-out wiring portion 90 for passing the one lead-out wire portion 90. All that is required is to provide the opening 95 . As a result, the strength of the vertical partitions 20 does not decrease, and the vertical partitions 20 do not have structural problems. Further, since the sensor substrate 41 is arranged on the upper side of the vertical partition 20 near the opening 95, there is no need to change the existing structure significantly.

It is also possible to install the sensor 40 alone inside the upper end portion 21 of the vertical partition portion 20 without mounting the sensor 40 on the sensor substrate 41 .

FIG. 6 shows a preferred shape example of the vertical partition 20 and the heat insulating material 50 arranged in the vertical partition 20 . FIG. 7 is an end view of the vertical partition 20 taken along line LL in FIG.

As shown in FIG. 6, the vertical partition 20 has a main body 23 made of resin and a front plate 24 as a lid member made of resin. The main body 23 is a box-shaped member that accommodates the heater 30 , the sensor 40 , and the heat insulating material 50 and is elongated in the vertical direction (Z direction). An opening 25 elongated in the Z direction of the main body 23 is closed by a front plate 24 . For example, multiple types of sensors 40 are arranged in the vertical partition section 20 . For example, sensor 40 is a combination of humidity sensor 40A and temperature sensor 40B.

The front plate 24 has ventilation holes 26 at positions corresponding to these sensors 40 for communicating the sensors 40 with the outside air, as already described. Since the front plate 24 is made of resin, it is easier to form these ventilation holes 26 than in a metal front plate. Since the ventilation holes 26 are provided, the outside air around the vertical partition 20 communicates with the sensor 40 and enters directly, so that the temperature and humidity around the vertical partition 20 can be reliably detected. can.

As described above, the sensor 40 is arranged so as to correspond to the ventilation holes 26. However, condensation is most likely to occur at locations where there is no heat insulating material 50 and where the ventilation holes 26 are provided and where the insulation thickness is thin. Since this is a place with no insulation thickness, a temperature difference between the outside air and the inside of the refrigerator compartment 2 shown in FIG. 1 is likely to occur at this place.

Therefore, if the sensor 40 grasps the temperature and humidity conditions at the location where the insulation thickness is thin or not, the risk of dew condensation can be reduced even if the energization rate of the heater 30 is set to the limit at which dew condensation does not occur.

Therefore, in order to grasp the temperature and humidity conditions at this location, the sensor 40 is set at a location where there is no heat insulating material 50 and where there is a ventilation hole 26 and where the heat insulation thickness is thin or thin. As a result, dew condensation between the sensor 40 and the sensor substrate 41 can be prevented, and the detection accuracy of the sensor 40 can be improved.

A heat insulating material 50 is arranged in the vertical partition section 20 , and the sensor 40 is located at a location where the heat insulating material 50 is not arranged in the vertical partition section 20 , i.e., there is no heat insulating material 50 , and is away from the heater 30 . placed in position. As a result, the sensor 40 is not obstructed by the heat insulating material 50 and is not affected by the heat generated by the heater 30 .

As shown in FIGS. 6 and 7, the heat insulating material 50 is arranged along the vertical direction (Z direction) in the vertical partition 20, and the upper end portion 51 of the heat insulating material 50 has a shielding portion 52. ing. The shielding portion 52 is formed in a substantially L shape toward the inner surface side of the front plate 25 . As a result, not only is the sensor 40 separated from the heater 30 by a predetermined distance, but also the shielding portion 52 is arranged at this distance, and the shielding portion 52 can shield heat between the heater 30 and the sensor 40 . Therefore, the shielding portion 52 can prevent the sensor 40 from being affected by the heat generated by the heater 30 compared to the case without the shielding portion 52 .

FIG. 8 is a diagram showing an arrangement example of the magnet 60, the heater 30, and the heat insulating material 50 shown in FIG.

As shown in FIG. 2, the magnets 60 are arranged at predetermined intervals along the Z direction in the vertical partition 20 . As shown in FIG. 8, the plurality of magnets 60 are arranged on the inner surface side of the front plate 24, for example.

Next, an example of the energization operation of the heater 30 of the vertical partition 20 in the refrigerator 1 described above will be described.

Even if the vertical partition 20 shown in FIG. 3 is under the condition of dew condensation, the dew condensation does not occur immediately after the condition is met, and the vertical partition 20 is gradually dewed.

Therefore, the controller 100 determines the energization rate of the heater 30 based on the detection value of the sensor 40 such as the temperature sensor and the humidity sensor arranged in the vertical partition 20, and after a certain time (energization delay time), For example, after 10 minutes, or 15 minutes at most, the control board 110 starts energizing the heater 30 by applying the determined energization rate.

As a result, the control board 110 can reduce the power consumption of the refrigerator 1 and save energy by delaying the operation of energizing the heater 30 as much as possible.

Also, another energization operation example will be described.

If the detected value (input value) of the sensor 40 is greater than or equal to a certain value (the sensor 40 is short-circuited) or less than the certain value (the sensor 40 is open), the sensor 40 is out of order. If it is detected, the control unit 100 refers to the detection value (input value) of the sensor 40 and does not determine the energization rate of the heater 30 . That is, in this case, the detection value of the sensor 40 indicates an abnormal value that is completely different from the actual situation, so even if the heater 30 is energized, the dew condensation on the vertical partition 20 cannot be prevented.

Therefore, when the control unit 100 indicates an abnormal detection value indicating a short circuit state or an open state, the control unit 100 refers to the abnormal detection value of the sensor 40 to determine the energization rate of the heater 30. instead, a predetermined fixed duty ratio for the heater 30 is used. As a result, the controller 100 can prevent dew condensation on the vertical partition 20 by energizing the heater 30 using this predetermined fixed energization rate.

Furthermore, another electrification operation example will be described.

A door opening/closing detection switch 120 shown in FIG. 3 is provided in the main body 1A of the refrigerator 1 in FIG. The door open/close detection switch 120 shown in FIG. 3 detects whether the left door 7 or the right door 8 shown in FIG. 1 is opened or closed. When the door open/close detection switch 120 detects the "open state" of the left door 7 or the right door 8, the control unit 100 does not refer to the detection value (input value) of the sensor 40. The energization rate of the heater 30 is not determined.

That is, when the left side door 7 or the right side door 8 is in the "open state", the sensor 40 installed in the vertical partition 20 detects the temperature and humidity of the mixture of cold air and outside air in the refrigerator compartment. In addition, the controller 100 cannot determine a stable detection value of the sensor 40 .

Therefore, when the control unit 100 confirms that the left door 7 or the right door 8 is “open”, the control unit 100 refers to the detection value (input value) of the sensor 40 and energizes the heater 30. Do not determine rate. As a result, unnecessary determination of the energization rate of the heater 30 can be prevented. Then, when the control unit 100 confirms that the left door 7 or the right door 8 is closed, the control unit 100 refers to the detection value (input value) of the sensor 40 and energizes the heater 30. determine the rate.

Moreover, more preferably, the control unit 100 confirms that the left door 7 or the right door 8 is in a "closed state", and preferably for a predetermined period of time, for example, at least 2 minutes, optimally 10 minutes, The controller 100 does not determine the energization rate of the heater 30 with reference to the input value of the sensor 40 for about 20 minutes at the longest.

In this way, when the left door 7 or right door 8 is in the "open state", the sensor 40 installed in the vertical partition 20 detects the state in which cold air and outside air are mixed in the refrigerating compartment. A stable sensor 40 sensing value cannot be determined. Moreover, for a while after the left side door 7 or the right side door 8 is closed, the outside air around the vertical partition 20 does not return to a normal state, so the left side door 7 or the right side door 8 is closed. The controller 100 does not refer to the detection value (input value) of the sensor 40 to determine the energization rate of the heater 30 for the above-described fixed time after the "open state" is changed to the "closed state". As a result, unnecessary determination of the energization rate of the heater 30 can be prevented.

In the refrigerator 1 of the first embodiment of the present invention, the temperature condition around the heater of the vertical partition is accurately grasped, and the heater does not require extra power consumption for energization, thereby saving energy of the refrigerator. can be achieved.

<Second embodiment>
FIG. 9 shows a second embodiment of the present invention, showing a structural example of the lower end portion 22 side of the vertical partition portion 20. As shown in FIG.

As shown in FIG. 9, the sensor substrate 41 of the sensor 40 has a support portion 42 when the sensor 40 is arranged in the lower end portion 22 . The support portion 42 is provided to float the sensor substrate 41 from the inner surface of the lower end portion 22 .

Moreover, the lower end portion 22 has a ventilation hole 26 for communicating the sensor 40 with the outside air. Since the ventilation holes 26 are provided, the outside air around the vertical partition 20 enters directly into the sensor 40, so that the temperature and humidity around the vertical partition 20 can be reliably detected. Accuracy can be improved.

In the refrigerator according to the second embodiment of the present invention, the temperature condition around the heater of the vertical partition is accurately grasped, and the heater does not require extra power consumption for energization, thereby saving energy of the refrigerator. can be planned.

<Third Embodiment>
FIG. 10 shows a third embodiment of the invention.

As shown in FIG. 10 , the sensor 40 is electrically connected to a control board 110 having a control section 100 by a sensor cable bundle 70 . Also, the heater 30 is electrically connected to the control board 110 by a heater bundle 80 .

In the embodiment shown in FIG. 10 , the sensor bundle 70 is formed as one lead-out wiring portion 91 , and this lead-out wiring portion 91 extends from the inside of the vertical partition portion 20 to above half of the vertical partition portion 20 . It is led out to the outside from the opening 96 at the position.

On the other hand, the bundled wires 80 for heater are formed as a separate derivation wiring portion 92, and this derivation wiring portion 92 is positioned below the half of the vertical partition portion 20 from the inside of the vertical partition portion 20. is led out to the outside from an opening 97 of the .

If noise occurs due to the state of voltage application to the heater 30, the detected value of the sensor 40 may not indicate a correct detected value due to the influence of the noise. Therefore, in the vertical partition 20, the position of the sensor bundle 70 and the position of the heater bundle 80 are separated as much as possible in the Z direction.

As a result, even if noise occurs on the heater 30 side, the noise does not affect the detection value of the sensor 40, so that the control unit 100 can obtain an accurate detection value of the sensor 40. .

In the refrigerator according to the third embodiment of the present invention, the temperature condition around the heater of the vertical partition can be accurately grasped, and the heater does not require extra power consumption for energization, thereby saving energy of the refrigerator. can be planned.

Although the embodiments of the present invention have been described above, the embodiments are presented as examples and are not intended to limit the scope of the invention. The novel embodiments can be implemented in various other aspects, and various omissions, replacements, and changes can be made without departing from the spirit of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are included in the scope of the invention described in the claims and equivalents thereof.

Moreover, the arrangement position and structure of the refrigerator compartment, which is the storage compartment of the refrigerator 1, and the refrigerator compartment shown in FIG. 1 are examples, and any structure can be adopted.

1 Refrigerator 1A Main body 20 Vertical partition 24 Front plate 26 Ventilation hole 30 Heater 40 Sensor 41 Sensor substrate 50 Heat insulating material 70 Sensor bundle 80 Heater bundle 100 Control unit 110 Control substrate

Claims (7)

the main body;
a left door and a right door for opening and closing the front opening of the main body;
a vertical partition provided between the left door and the right door;
a heater provided in the vertical partition;
a sensor provided within the vertical partition;
A control unit that controls the output value to the heater,
A heat insulating material is disposed between the heater and the sensor within the vertical partition, and the sensor is disposed at a position where the heat insulating material is absent within the vertical partition,
The vertical partition has a ventilation hole for allowing the sensor to communicate with the outside air , the sensor has a temperature sensor for detecting temperature, and the temperature sensor detects the temperature of the vertical partition. At least a portion of the temperature sensor is included in an area extending from the inner area of the ventilation hole in the vertical partition along the central axis of the ventilation hole, the temperature sensor being arranged so as not to contact the inner surface. are positioned so that
A refrigerator in which the controller determines an output value to the heater based on an input value from the sensor. the main body;
a left door and a right door for opening and closing the front opening of the main body;
a vertical partition provided between the left door and the right door;
a heater provided in the vertical partition;
a sensor provided within the vertical partition;
A control unit that controls the output value to the heater,
A heat insulating material is disposed between the heater and the sensor in the vertical partition, and the heat insulating material is a vacuum heat insulating material,
The vertical partition has a ventilation hole for allowing the sensor to communicate with the outside air , the sensor has a temperature sensor for detecting temperature, and the temperature sensor detects the temperature of the vertical partition. At least a portion of the temperature sensor is included in an area extending from the inner area of the ventilation hole in the vertical partition along the central axis of the ventilation hole, the temperature sensor being arranged so as not to contact the inner surface. are positioned so that
A refrigerator in which the controller determines an output value to the heater based on an input value from the sensor. the main body;
a left door and a right door for opening and closing the front opening of the main body;
a vertical partition provided between the left door and the right door;
a heater provided in the vertical partition;
a sensor provided within the vertical partition;
A control unit that controls the output value to the heater,
A heat insulating material is arranged between the heater and the sensor in the vertical partition, and the sensor is arranged at a location communicating with the outside air,
The vertical partition has a ventilation hole for communicating with the sensor and the outside air, the sensor has a temperature sensor for detecting temperature, and the temperature sensor detects the temperature of the vertical partition. At least a portion of the temperature sensor is included in an area extending from the inner area of the ventilation hole in the vertical partition along the central axis of the ventilation hole, the temperature sensor being arranged so as not to contact the inner surface. are positioned so that
A refrigerator in which the controller determines an output value to the heater based on an input value from the sensor. 4. The refrigerator according to any one of claims 1 to 3, wherein said sensor further comprises at least one of a humidity sensor for detecting humidity and a condensation sensor for detecting condensation. 5. The refrigerator according to any one of claims 1 to 4, wherein a front plate of said vertical partition is made of resin, and said front plate is provided with said ventilation holes. 6. The refrigerator according to any one of claims 1 to 5, wherein the heater has a sparse portion and a dense portion, and the sensor is arranged on the sparse portion side of the heater. It has a sensor bundle wire connecting the sensor to the control unit side and a heater bundle wire connecting the heater to the control unit side, and the sensor bundle wire and the heater bundle wire are connected to the vertical partition. 7. The refrigerator according to any one of claims 1 to 6, wherein the refrigerator is led out from separate locations within the unit.

Images