JP5160387B2 - refrigerator - Google Patents

Description

  The present invention relates to a lighting device that illuminates a storage room and a refrigerator that includes a temperature sensor that detects the indoor temperature of the storage room.

  A conventional refrigerator is disclosed in Patent Document 1. This refrigerator includes a lighting device and a temperature detection unit. The light source of the illuminating device is arranged at the center of the back of the refrigerator compartment and illuminates the refrigerator compartment. The temperature detector is disposed on the upper side of the refrigerator compartment and detects the room temperature in the refrigerator compartment. The room temperature of the refrigerator compartment is controlled based on the detection result of the temperature detector.

Japanese Patent Laid-Open No. 10-47849 (page 3 to page 4, FIG. 2)

  However, according to the conventional refrigerator, the light source and the temperature detection unit are installed apart from each other. Thereby, since it formed individually and attached in the refrigerator compartment, there existed a problem which the cost of a refrigerator and the assembly man-hour became large. In addition, since the storage space for the light source and the temperature detector is required separately, there is a problem that the volumetric efficiency of the internal volume is lowered.

  An object of this invention is to provide the refrigerator which can improve volumetric efficiency while reducing cost and an assembly man-hour.

  In order to achieve the above object, the present invention provides a storage chamber for storing stored items, a cooler for generating cool air, a cool air passage through which cool air generated by the cooler circulates, and a cool air that opens into the cool air passage. A discharge port for discharging the liquid into the storage room, a lighting device having a light source disposed in the center in the left-right direction at the upper back of the storage room, and a temperature at which the room temperature of the storage room is detected in the vicinity of the light source And a sensor for controlling a room temperature of the storage room based on a detection result of the temperature sensor.

  According to this configuration, the cold air generated by the cooler flows through the cold air passage and is discharged to the storage chamber via the discharge port. The storage room is illuminated with light emitted from the light source of the lighting device, and the room temperature is controlled based on the detection result of the temperature sensor. The light source and the temperature sensor are provided close to the storage space in the center in the left-right direction at the upper back of the storage chamber.

  Moreover, the present invention is characterized in that, in the refrigerator having the above-described configuration, the light source includes an LED, and the light source and the temperature sensor are mounted on the same substrate. According to this configuration, the light source and the temperature sensor, which are LEDs that generate less heat, are integrated by the substrate and installed at the same time.

  Moreover, the present invention is characterized in that the temperature sensor is mounted below the light source in the refrigerator configured as described above. According to this configuration, the heat generation of the light source is increased and the influence of the heat generation on the temperature sensor is reduced.

  Moreover, the present invention is characterized in that, in the refrigerator configured as described above, the light source and the temperature sensor are arranged on different surfaces of the substrate. According to this configuration, the heat generation of the light source is blocked by the substrate, and the influence of the heat generation on the temperature sensor is reduced.

  Moreover, the present invention is characterized in that in the refrigerator configured as described above, a plurality of the LEDs are arranged side by side in the horizontal direction, and the temperature sensor is disposed below the adjacent LEDs. According to this configuration, the temperature sensor is disposed away from each LED that generates heat. The temperature sensor and the light source may be disposed on the same surface or different surfaces of the substrate.

  Moreover, the present invention is characterized in that, in the refrigerator having the above-described configuration, the discharge port is disposed in the vicinity of the light source. According to this configuration, the heat generated by the light source is cooled by the cold air, and the room temperature is detected by the temperature sensor under the influence of the cold air immediately after being discharged from the discharge port.

  Moreover, this invention is a refrigerator of the said structure, The said illuminating device has the light-guide plate which guides the emitted light of the said light source, arrange | positions the said light source facing the side surface of the said light-guide plate, and the front surface of the said light-guide plate It is characterized by emitting illumination light from. According to this configuration, the light emitted from the light source disposed on the side of the light guide plate enters the light guide plate from the side surface and is guided, and is emitted from the front surface toward the storage chamber.

  According to the present invention, since the temperature sensor for detecting the room temperature of the storage room is arranged in the vicinity of the light source of the lighting device that illuminates the storage room, the light source and the temperature sensor can be simultaneously attached to the storage space on the back of the storage room. The volumetric efficiency of the refrigerator can be improved and the number of assembly steps can be reduced.

  Further, since the light source and the temperature sensor are mounted on the same substrate, the light source and the temperature sensor can be easily integrated, the cost can be reduced, and the number of assembly steps can be further reduced.

  Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 and FIG. 2 are an external perspective view showing a refrigerator according to an embodiment and a perspective view seen from the front in a state where a door is opened. In the refrigerator 1, a refrigerator compartment 6 is arranged at the upper part, and freezer compartments 8 and 9 are arranged below through a heat insulating wall 10. The freezer compartments 8 and 9 arranged on the left and right are partitioned by a vertical heat insulating wall 11. The refrigerator compartment 6 is opened and closed by the right door 2 and the left door 3, and the freezer compartments 8 and 9 are opened and closed by the right door 4 and the left door 5, respectively.

  Door pockets 2a and 3a for storing stored items are provided on the inner surfaces of the right door 2 and the left door 3 of the refrigerator compartment 6, respectively. In the refrigerator compartment 6, a plurality of placement shelves 12 on which stored items are placed are arranged. In the lower part of the refrigerator compartment 6, an isolation chamber 7 partitioned by a partition plate 13 is provided. A plurality of drawer-type storage cases 7 a for storing stored items are provided in the isolation chamber 7.

  An ice making device 8a is provided in the upper part of the right freezer compartment 8. An ice storage box 8b for storing ice is disposed below the ice making device 8a. A plurality of storage cases 8c for storing stored items are provided at the sides and below the ice making device 8a and the ice storage box 8b. Similarly, a plurality of storage cases 9 c are provided in the left freezer compartment 9.

  FIG. 3 is a side sectional view of the lower part of the refrigerator 1 and shows a section through the freezer compartment 8. A back duct 56 covered with a back plate 55 is formed between the heat insulating box 1 a forming the main body of the refrigerator 1 and the inside of the freezer compartment 8. The inside of the back duct 56 is divided into front and rear by a partition plate 56a, a plurality of back discharge ports 63 are opened on the front surface, and a cooler 57 is arranged on the rear side. A blower 58 is disposed above the cooler 57. The cooler 57 is connected to a compressor 59 disposed behind the freezer compartments 8 and 9. The refrigerant flows by driving the compressor 59 and the refrigeration cycle is operated, and the cooler 57 is on the low temperature side of the refrigeration cycle.

  The vertical heat insulating wall 11 is disposed in contact with the back plate 55 and is provided with first and second cold air ducts 71 and 73 communicating with the back duct 56. A bottom duct 75 communicating with the first cold air duct 71 is provided at the bottom of the freezer compartments 8 and 9. The bottom duct 75 is provided with a cold air return port 72 on the front surface, the back surface, and the side surface on the side away from the vertical heat insulating wall 11.

  Side discharge ports 74 that open toward the left and right freezer compartments 8 and 9 are provided at the front of the second cold air duct 73. In addition, the damper 65 provided in the heat insulation wall 10 is opened, and cold air is sent out to the cold air passage 27 (see FIG. 5) provided in the back surface of the refrigerator compartment 6.

  FIG. 4 shows a perspective view of the panel assembly 14 forming the back surface of the refrigerator compartment 6 as viewed from the front. 5 and 6 show a rear view and a side sectional view of the panel assembly 14. FIG. 7 is a detailed view of the main part of FIG. The panel assembly 14 is disposed above the isolation chamber 7 and forms a cool air passage 27 through which cool air flows on the back side.

  The panel assembly 14 includes a panel 15 made of a resin molded product, and a member 18 made of a good heat conductor such as metal (aluminum or stainless steel) is disposed on the front side of the panel 15. On both sides of the member 18, lamp covers 16 and 17 made of translucent resin are provided.

  An illumination chamber 20 a is formed integrally with the panel 15 at the center in the left-right direction at the top of the panel 15. Discharge ports 15a and 15b for discharging cool air are opened on the left and right of the illumination chamber 20a. The illumination device 20 is screwed into the illumination chamber 20a from the back. A cover 19 is provided above the illumination chamber 20a. A similar illumination device having LEDs is also arranged behind the lamp covers 16 and 17.

  A duct 28 formed of a foam heat insulating material is disposed on the back surface of the panel 15. The panel 15 is provided with an opening in which the member 18 is attached, and a duct 28 is provided in contact with the member 18. Around the duct 28, a frame member 28g that abuts against the heat insulating box 1a (see FIG. 3) is provided, and the outer shape of the cold air passage 27 is formed by the frame member 28g. The cold air passage 27 communicates with the damper 65 (see FIG. 3). The cold air generated by the cooler 57 due to the opening of the damper 65 circulates in the cold air passage 27 from below to above and is discharged into the refrigerator compartment 6 from the discharge ports 15a and 15b.

  The cold air passage 27 is divided into three in the left-right direction by ribs 32 projecting from the rear surface of the duct 28, and the right passage 29, the middle passage 30, and the left passage 31 are arranged in order from the right (from the left in the rear view of FIG. 5). Provided. The right passage 29, the middle passage 30, and the left passage 31 merge at the top.

  The end of the cold air passage 27 is formed by the upper wall 28c of the duct 28 formed by the upper end portion of the frame member 28g. The upper wall 28c of the duct 28 has a central portion 28f disposed below the right portion 28d and the left portion 28e. An illumination chamber 20a is formed above the central portion 28f, and discharge ports 15a and 15b are formed along the right portion 28d and the left portion 28e.

  As a result, the cool air rising in the middle passage 30 collides with the central portion 28f of the upper wall 28c, branches right and left, and is guided to the discharge ports 15a and 15b. Accordingly, the central portion 28f constitutes a shielding portion that blocks a part of the airflow in the cold air passage 27 and branches left and right.

  Further, an ion generation chamber 28a in which an ion generator 86 is disposed is formed integrally with the duct 28 in the vicinity of the central portion 28f. The heat insulating box 1a facing the ion generation chamber 28a is formed with a guide portion 27a composed of an inclined surface that guides cool air in the direction of the ion generation chamber 28a.

  8 and 9 show an exploded perspective view and a plan view of the lighting device 20. The lighting device 20 includes a base 21, a light guide plate 22, a substrate 23, and a reflection sheet 24. The base 21 is made of a resin molded product, and a storage portion 21a for storing the substrate 23 is formed at one end. The light guide plate 22 is made of a transparent resin, and has an emission surface 22c on the front surface and an inclined surface 22b on the back surface side.

  The substrate 23 is mounted with an LED 23 a serving as a light source disposed on the side of the light guide plate 22. Light emitted from the LED 23a is guided through the light guide plate 22, reflected by the inclined surface 22b, and guided to the front output surface 22c. The inside of the refrigerator compartment 6 is illuminated by the outgoing light from the outgoing surface 22c. In order to obtain a wide area facing the LED 23a, the light guide plate 22 is formed with a recess 22a into which the tip of the LED 23a is inserted. The reflection sheet 24 is made of an aluminum foil bonded to the light guide plate 22 with a transparent adhesive material, reflects light leaking upward, and guides it to the emission surface 22c.

  10, 11, and 12 show a top view, a side view, and a front view of the substrate 23. The LED 23a is mounted on one surface of the substrate 23, and the connector 23c is mounted on the same surface. A thermistor 23b is mounted on the surface of the substrate 23 opposite to the LED 23a. A lead wire 25 (see FIG. 8) is connected to the connector 23c via a connector 25a (see FIG. 8), and power is supplied to the LED 23a and the thermistor 23b.

  A part of the storage portion 21a is opened and communicates with the inside of the refrigerator compartment 6, and the cold air in the refrigerator compartment 6 flows in and the temperature is detected by the thermistor 23b. Based on the detection result of the thermistor 23b, the damper 65 (see FIG. 3) is opened and closed to control the temperature in the refrigerator compartment 6. Accordingly, the LED 23a and the thermistor 23b are mounted on the substrate 23 to perform interior lighting and temperature control with a small volume, thereby improving the volumetric efficiency.

  At this time, the amount of heat generated can be reduced by using the LED 23a as a light source. Moreover, since the accommodating part 21a is arrange | positioned in the right outlet 15a vicinity, LED23a can be cooled. Thereby, the fall of the detection accuracy of the thermistor 23b by the heat_generation | fever of LED23a can be prevented.

  In addition, the thermistor 23b is attached below the LED 23a and attached to the surface opposite to the LED 23a. Thereby, the fall of the detection accuracy of the thermistor 23b by the heat_generation | fever of LED23a can further be prevented.

  FIG. 13 is a front sectional view of the lighting device 20. FIG. 14 is an enlarged view of a main part of FIG. The board | substrate 23 is inserted from the upper surface opening part of the accommodating part 21a, and is pinched | interposed and fixed by the ribs 21b and 21c provided in the accommodating part 21a. At this time, the connector 23c protruding from the board 23 passes between the protruding portion 21d protruding sideways from the lower surface of the base 21 and the inner wall of the storage portion 21a facing the protruding portion 21d. And the board | substrate 23 is guided to the left in the figure by the inclined surface formed in the upper surface of the rib 21b, and the board | substrate 23 is fixed between rib 21b, 21c.

  Thereby, the board | substrate 23 moves to the direction of the light-guide plate 22, and the front-end | tip of LED23a enters into the recessed part 22a (refer FIG. 9) of the light-guide plate 22. FIG. For this reason, the LED 23a can approach the recess 22a and transmit light to the light guide plate 22 without leakage. Moreover, the light guide plate 22 side below the storage portion 21a is opened and the tip of the connector 23c is arranged. As a result, the connectors 23c and 25a can be easily connected, and an excessive stress can be prevented from being applied to the lead wire 25 (see FIG. 4). Note that the substrate 23 may be incorporated in the storage portion 21a after the connectors 23c and 25a are connected.

  Further, an insulating sponge-like spacer may be inserted between the substrate 23 and the inner surface of the storage portion 21a. Thereby, the backlash of the board | substrate 23 can be prevented and the space | interval of LED23a and the light-guide plate 22 can be stably maintained at a predetermined space | interval.

  As shown in FIG. 15, a plurality of LEDs 23a may be provided horizontally on the substrate 23, and the thermistor 23b may be disposed below the LEDs 23a. Thereby, the influence with respect to the thermistor 23b of the heat_generation | fever of LED23a can be reduced. At this time, as shown in FIG. 16, a thermistor 23b may be disposed below the adjacent LED 23a. Thereby, the thermistor 23b moves away from the LED 23a, and the influence of heat generation of the LED 23a can be further reduced. In the same manner as described above, it is more desirable to attach the thermistor 28b to the surface of the substrate 23 opposite to the LED 23a.

  17 and 18 show a front view and a side sectional view of the ion generator 86. The ion generator 86 is covered with a housing 86a made of an insulator, and needle-like discharge electrodes 86p and 86q are arranged apart from each other. An annular induction electrode 86e is disposed around the discharge electrodes 86p and 86q. In the ion generation chamber 28a (see FIG. 5), the discharge electrodes 86p and 86q are juxtaposed in the left-right direction, and are arranged away from each other in a direction intersecting the airflow rising in the cold air passage 27.

  The housing 86a is provided with a through hole 86b facing the discharge electrodes 86p and 86q. Thereby, the discharge electrodes 86p and 86q are exposed on the ion generation surface 86d. The through hole 86b faces the opening 28b (see FIG. 5) that opens facing the cold air passage 27 of the ion generation chamber 28a. Thereby, the discharge electrodes 86p and 86q are arranged facing the cold air passage 27.

  Ions generated in the ion generation part 86f between the discharge electrodes 86p, 86q and the induction electrode 86e are mixed with the cold air flowing into the ion generation chamber 28a and flow out into the cold air passage 27 from the opening 28b.

  A vent hole 86g having a filter 86h is formed between the through holes 86b on the ion generation surface 86d. The ventilation hole 86g communicates with the ion generation part 86d inside the housing 86a, and the cold air flowing into the housing 86a from the ventilation hole 86g flows out of the ion generation part 86d. For this reason, the ion which generate | occur | produced in the ion generation part 86f can be included in cold air, without stagnating.

  Note that the filter 86h isolates the left and right ion generators 86f, and the ion supply efficiency can be improved by reducing the disappearance due to the collision between the positive ions and the negative ions. You may provide the rib which isolates both between the ion generating parts 86f on either side.

  A positive or negative high voltage is applied to the discharge electrodes 86p and 86q with respect to the induction electrode 86e. As a result, positive ions and negative ions are generated, for example, by corona discharge in the ion generator 86f formed between the discharge electrodes 86p and 86q and the induction electrode 86e.

For example, a positive voltage is applied to one of the discharge electrodes 86p, and ions generated by ionization combine with moisture in the air to generate positive cluster ions whose charges mainly consist of H ⁺ (H ₂ O) m. A negative voltage is applied to the other discharge electrode 86q, and ions generated by ionization combine with moisture in the air to generate negative cluster ions mainly composed of O ₂ ⁻ (H ₂ O) n. Here, m and n are arbitrary natural numbers. H ⁺ (H ₂ O) m and O ₂ ⁻ (H ₂ O) n agglomerate and surround the surface of airborne bacteria, odorous components, and stored bacteria.

Then, as shown in the formulas (1) to (3), the active species [.OH] (hydroxyl radical) and H ₂ O ₂ (hydrogen peroxide) are aggregated and formed on the surface of the microorganism or the like by collision. Destroy airborne bacteria and odor components. Here, m ′ and n ′ are arbitrary natural numbers. Therefore, indoor sterilization and odor removal can be performed by generating positive ions and negative ions and discharging them from the discharge ports 15a and 15b.

H ⁺ (H ₂ O) m + O ₂ ⁻ (H ₂ O) n → OH + 1 / 2O ₂ + (m + n) H ₂ O (1)
_{^{H + (H 2 O) m}} + H + (H 2 O) m '+ O 2 - (H 2 O) n + O 2 - (H 2 O) n'
→ 2 OH + O ₂ + (m + m ′ + n + n ′) H ₂ O (2)
_{^{H + (H 2 O) m}} + H + (H 2 O) m '+ O 2 - (H 2 O) n + O 2 - (H 2 O) n'
→ H ₂ O ₂ + O ₂ + (m + m ′ + n + n ′) H ₂ O (3)

  The ion generator 86 includes needle-like discharge electrodes 86p and 86q and an induction electrode 86e, but may have other configurations. For example, as shown in FIG. 19, an ion generator in which a flat discharge electrode 86p is arranged on an ion generation surface 86d may be used. Further, as shown in FIG. 20, an ion generator having a needle-like discharge electrode 86p connected to a power supply unit 86j by a lead wire 86k may be used.

  In the refrigerator 1 having the above-described configuration, the cold air generated by heat exchange in the cooler 57 is guided to the front side of the rear duct 56 by driving the blower 58 and dispersed vertically from the plurality of rear discharge ports 63 provided in the rear plate 55. Then, it is discharged into the freezer compartments 8 and 9. The cool air discharged from the rear discharge port 63 is guided forward and flows around the storage cases 8c and 9c.

  Further, the cold air flowing through the second cold air duct 23 from the front side of the rear duct 56 is dispersed vertically from the plurality of side surface discharge ports 74 and discharged into the freezer compartments 8 and 9. The cool air discharged from the side discharge port 74 is guided in a direction away from the vertical heat insulating wall 11 and circulates around the storage cases 8c and 9c. The cold air flowing through the freezer compartments 8 and 9 flows into the bottom duct 75 through the cold air return port 72 and returns to the cooler 57 through the first cold air duct 71. Thereby, the inside of the freezer compartments 8 and 9 is cooled.

  When the damper 65 provided on the heat insulating wall 10 is opened, cold air is sent out to the cold air passage 27 provided on the back surface of the refrigerator compartment 6. The cold air passage 27 is formed across the left and right sides of the refrigerator compartment 6, and the passage is widened from the damper 65 to the left and right. As a result, the flow area of the cold air passage 27 is widened, so the flow rate of the cold air is reduced.

  The cold air flowing into the cold air passage 27 is dispersed and rises in the right passage 29, the middle passage 30, and the left passage 31. Ions generated by the ion generator 86 flow out of the ion generation chamber 28 a through the opening 28 b and are mainly included in the cold air that has passed through the middle passage 30. The cool air rising through the middle passage 30 is blocked by colliding with the central portion 28f of the upper wall 28c of the duct 28, and a vortex is generated and stirred.

  As a result, the ions are stirred by the vortex and are uniformly contained in the cold air. At this time, if positive ions are released from one of the two openings 86b and negative ions are released from the other, the positive ions and negative ions collide and decrease due to stirring. For this reason, positive ions are continuously released from one of the openings 86b and negative ions are continuously released from the other. As a result, the amount of ions generated is increased and the influence of the decrease due to the collision can be reduced as compared with the case where positive and negative ions are alternately generated by one discharge electrode.

  Further, the vicinity of the ion generator 86 in the middle passage 30 is guided by the guide portion 27a having an inclined surface so that the cold air is directed toward the ion generation chamber 28a. As a result, the cold air flows into the ion generation chamber 28a and flows out including the ions, so that the ions generated by the ion generator 86 easily flow out into the cold air passage 27.

  The cold air containing ions branches right and left by the central portion 28f of the upper wall 28c, is led to the discharge ports 15a and 15b, merges with the cold air that has passed through the right passage 29 and the left passage 31, and is discharged into the refrigerator compartment 6. Is done. The cool air discharged from the discharge ports 15a and 15b arranged in the upper part of the refrigerating chamber 6 flows down in the refrigerating chamber 6 to cool the stored items, and the inside of the refrigerating chamber 6 is sterilized by ions contained in the cold air.

  Further, the cold heat of the cold air flowing through the cold air passage 27 is transmitted to the member 18 through the duct 28. In addition, the cold air flowing down from the discharge ports 15 a and 15 b is transmitted to the member 18. Since the member 18 covering the back surface of the refrigerator compartment 6 is made of a good heat conductor, cold heat is released from the entire member 18. Thereby, the temperature distribution in the refrigerator compartment 6 can be made uniform.

  In order to increase the strength of the panel assembly 14, a wall surface of the panel 15 may be provided between the member 18 and the duct 28. Further, the amount of cold heat may be adjusted by adjusting the thickness of the duct 28 or the panel 15, and in some cases, the air may be opened to directly contact the member 18.

  Further, when the right door 2 or the left door 3 of the refrigerator compartment 6 is opened, outside air flows into the refrigerator compartment 6, and moisture contained in the outside air comes into contact with the member 18 to condense. Condensation of the member 18 evaporates after the right door 2 and the left door 3 are closed, and the inside of the refrigerator compartment 6 is moisturized. For this reason, while being able to reduce the drying of a store thing, the cluster ion couple | bonded with the water molecule can be enlarged. Thereby, since it becomes difficult to lose | disappear ion, ion can be conveyed to every corner of the refrigerator compartment 6. FIG.

  According to this embodiment, since the thermistor 23b (temperature sensor) for detecting the indoor temperature of the refrigerator compartment 6 is disposed in the vicinity of the LED 23a that is a light source of the lighting device 20 that illuminates the refrigerator compartment 6, the storage space on the back of the refrigerator compartment 6 is provided. The light source and the thermistor 23b can be simultaneously attached to the (housing portion 21a), so that the volumetric efficiency of the refrigerator 1 can be improved and the number of assembling steps can be reduced.

  Moreover, since LED23a (light source) was distribute | arranged to the left-right direction center part of the upper part of the refrigerator compartment 6, the whole refrigerator compartment 6 can be easily illuminated to every corner. In addition, the temperature of the relatively high temperature position of the refrigerator compartment 6 can be detected by the thermistor 23b, and insufficient cooling in the refrigerator compartment 6 can be prevented.

  Further, since the LED 23a and the thermistor 23b are mounted on the same substrate 23, the LED 23a and the thermistor 23b can be easily integrated, and the cost can be reduced and the number of assembly steps can be further reduced. Further, since the light source is formed by the LED 23a, the amount of heat generated can be reduced, and the detection accuracy of the thermistor 23b provided nearby can be prevented from being lowered.

  Further, since the temperature sensor 23a is mounted below the LED 23a, the heat generation of the LED 23a is increased, and the detection accuracy of the thermistor 23b can be further prevented from being lowered.

  Further, since the LED 23a and the thermistor 23b are arranged on different surfaces of the substrate 23, the heat generation is shielded by the substrate 23, and the detection accuracy of the thermistor 23b can be further prevented from being lowered.

  Further, since a plurality of LEDs 23a are juxtaposed in the horizontal direction and the thermistor 23b is arranged below the adjacent LEDs 23a, the LED 23a and the thermistor 23b are separated from each other, and a decrease in detection accuracy of the thermistor 23b can be further prevented.

  Further, since the discharge port 15a is disposed in the vicinity of the LED 23a, the LED 23a can be cooled to further prevent a decrease in detection accuracy of the thermistor 23b due to heat generated by the LED 23a.

  Moreover, since the illuminating device 20 has the light-guide plate 22, and arrange | positions LED23a facing the side surface of the light-guide plate 22, and radiate | emits illumination light from the front surface of the light-guide plate 22, the depth of the illuminating device 20 is made small and stored. The internal volume can be increased and the volume efficiency can be further improved.

  In the present embodiment, positive ions and negative ions are released to the cool air passage 27 by the ion generator 86, but only negative ions may be released.

  INDUSTRIAL APPLICATION This invention can be utilized for the refrigerator provided with the temperature sensor which detects the indoor device of the lighting device which illuminates a store room, and a store room.

The external appearance perspective view which shows the refrigerator of embodiment of this invention The perspective view which shows the state which opened the door of the refrigerator of embodiment of this invention Side surface sectional drawing which shows the lower part of the refrigerator of embodiment of this invention The perspective view which shows the panel assembly of the refrigerator of embodiment of this invention The rear view which shows the panel assembly of the refrigerator of embodiment of this invention Side surface sectional drawing which shows the panel assembly of the refrigerator of embodiment of this invention Detailed view of the main part of FIG. The disassembled perspective view which shows the illuminating device of the refrigerator of embodiment of this invention. The top view which shows the illuminating device of the refrigerator of embodiment of this invention The top view which shows the board | substrate of the illuminating device of the refrigerator of embodiment of this invention. The side view which shows the board | substrate of the illuminating device of the refrigerator of embodiment of this invention. The front view which shows the board | substrate of the illuminating device of the refrigerator of embodiment of this invention. Front sectional drawing which shows the illuminating device of the refrigerator of embodiment of this invention. Detailed view of the main part of FIG. The front view which shows arrangement | positioning of the other light source on the board | substrate of the illuminating device of the refrigerator of embodiment of this invention. The front view which shows arrangement | positioning of the other light source on the board | substrate of the illuminating device of the refrigerator of embodiment of this invention. The front view which shows the ion generator of the refrigerator of embodiment of this invention Side surface sectional drawing which shows the ion generator of the refrigerator of embodiment of this invention The perspective view which shows the other ion generator of the refrigerator of embodiment of this invention. The perspective view which shows the other ion generator of the refrigerator of embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Refrigerator 1a Heat insulation box 6 Refrigerating room 7 Isolation room 8, 9 Freezing room 10 Heat insulation wall 11 Vertical heat insulation wall 14 Panel assembly 15 Panel 15a, 15b Discharge port 18 Member 20 Lighting apparatus 20a Lighting room 21 Base 21a Storage part 22 Conduction Light plate 23 Substrate 23a LED
23b Thermistor 27 Cold air passage 27a Guide portion 28 Duct 28a Ion generation chamber 28b Opening portion 28c Upper wall 28f Center portion 29 Right passage 30 Middle passage 31 Left passage 55 Back plate 56 Rear duct 57 Cooler 58 Blower 59 Compressor 63 Rear outlet 65 damper 71 first cold air duct 72 cold air return port 73 second cold air duct 74 side discharge port 75 bottom surface duct 86 ion generator 86a housing 86b through hole 86d ion generation surface 86e dielectric electrode 86f ion generator 86g vent hole 86h filter 86p, 86q discharge electrode

Claims (4)

A storage chamber for storing stored items, a cooler for generating cool air, a cool air passage through which the cool air generated by the cooler flows, a discharge port for opening the cool air passage and discharging cool air to the store chamber, The temperature sensor, comprising: a lighting device having a light source composed of LEDs disposed in a central portion in the left-right direction at the upper rear portion of the storage chamber; and a temperature sensor that is disposed in the vicinity of the light source and detects an indoor temperature of the storage chamber. And controlling the indoor temperature of the storage room based on the detection result of the above , mounting the light source and the temperature sensor on different surfaces on the same substrate, and arranging the temperature sensor below the light source. Features a refrigerator. The refrigerator according to claim 1 , wherein a plurality of the LEDs are arranged in parallel in the horizontal direction, and the temperature sensor is disposed below the adjacent LEDs. The refrigerator according to claim 1 or 2 , wherein the discharge port is disposed in the vicinity of the light source. The illumination device includes a light guide plate that guides light emitted from the light source, and the light source is disposed facing a side surface of the light guide plate to emit illumination light from the front surface of the light guide plate. The refrigerator in any one of Claims 1-3 .

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