JP2012002394A - Refrigerator - Google Patents

Abstract

An object of the present invention is to provide a refrigerator capable of reducing cost while improving energy saving by simplifying electrical wiring of each component and connecting it to a control board of a machine room.
A machine room 56 provided below the refrigerating room 26, a control board 58 for controlling the entire refrigerator 20 provided in the machine room 56, and a door switch wiring 65 of the door switch 64 connected to the control board 58 The door switch wiring 65 is fixed using fixing means 67 provided outside the inner box 21 of the heat insulation box 24, and the lighting means 48 and the blower 34 are fixed to the door switch wiring path 68. Wrapped by means 67 and connected to the control board 58 while consolidating the electrical wiring of each component, the wiring of each component is housed in the heat insulation box 24, and the operability and design of the refrigerator main body 20 are deteriorated. Therefore, the cost can be reduced while improving the energy saving performance.
[Selection] Figure 1

Description

  The present invention relates to a configuration that simplifies wiring of a fan of a refrigerator and lighting means in a warehouse.

  Conventionally, in this type of refrigerator, a box containing an interior lamp, a door switch, and an operation switch unit is installed on the front wall of the refrigerator main body. (For example, refer to Patent Document 1).

  6a and 6b show a partial cross section of a conventional refrigerator described in the aforementioned public relations. As shown to FIG. 6 a, b, 1 is the refrigerator main body which comprises a heat insulation box, and is the heat insulation structure which filled the foam heat insulating material 4 in the inside by combining the inner box 2 and the outer box 3. FIG. A refrigerator compartment 5 and a freezer compartment 6 are provided in the refrigerator main body 1 from above. The front opening of the refrigerator compartment 5 is closed by a pivotable door 7 that is opened and closed laterally by a hinge device. 8 is a box that houses an illuminating lamp 9 that illuminates the refrigerator compartment 5, a door switch 10 that turns the illuminating lamp 9 on and off by opening and closing the door 7, and an operation switch section 11 that operates the temperature setting and various functions of the refrigerator body 1. It is. A control board unit 12 is electrically connected to the electrical components in the box 8. The control board unit 12 controls the operation of the refrigerator body 1 based on the operation of the operation switch unit 11 and a signal from the temperature sensor 13 provided in the refrigerator compartment 5. The control board 12 is installed in a recess 14 in which the back wall of the outer box 3 of the refrigerator body 1 is recessed toward the heat insulating material 4, and the outer surface is covered with a cover 15. In this way, the plurality of electric wires connecting the illumination lamp 9, the door switch 10, the operation switch unit 11, and the control board unit 12 in the box 8 are bundled so as to form a single wire bundle 16. It arrange | positions at the heat insulating material 4 side of the box 3, and, thereby, the wiring bundle 16 is protected in the state covered with the heat insulating material 4. FIG.

Japanese Patent Laid-Open No. 2004-239552

  However, in the conventional configuration, the wiring of electrical parts and the temperature sensor in the box 8 from the control board 12 is bundled and shortened, but the heat insulating material 4 is recessed for the attachment of the control board 12. As a result, the thickness of the heat insulating material is reduced, and power consumption as the refrigerator main body 1 is increased.

  In addition, since the electrical parts are housed in the box 8, the electrical wiring can be consolidated, but since the box 8 is provided outside the refrigerator main body 1, it is located on the ceiling of the refrigerator main body 1 and is difficult to operate or has illumination. There was also a problem that it hits only in front of the front opening of the refrigerator compartment 5 and the design was not clean.

  SUMMARY OF THE INVENTION The present invention solves the above-described conventional problems, and aims to reduce costs by simplifying and shortening the electrical wiring while not increasing the power consumption of the refrigerator.

In order to solve the above-described conventional problems, a refrigerator according to the present invention includes a heat insulating box, a refrigeration room provided at an upper part of the heat insulating box, a freezing room provided at a lower part of the heat insulating box, a refrigeration room, and a freezing room. A heat insulation partition wall for partitioning the door, a door switch for confirming the opening and closing of the refrigerator compartment door, a refrigerated room temperature control unit for adjusting the flow rate of the cold air discharged to the refrigerator compartment, and an illumination means for illuminating the interior of the refrigerator compartment A machine room provided below the refrigerating room, a control board for controlling the entire refrigerator provided in the machine room, a door switch wiring for the door switch connected to the control board, and a door switch wiring for the heat insulating box. A door switch wiring path fixed using a fixing means provided outside the inner box, and the wiring of the lighting means and the wiring of a fan for circulating cool air in the heat insulation box are wrapped by the fixing means in the door switch wiring path. It is provided.

  Thus, the wiring of each component is connected to the control board without reducing the thickness of the heat insulation box for attaching the control board. In addition, the control board is arranged in the machine room, and the wiring of each component is housed in a heat insulation box to prevent deterioration of the operability and design of the refrigerator main body.

  The refrigerator of the present invention can reduce the cost while improving the energy saving by simplifying the wiring of each component and connecting it to the control board of the machine room.

Sectional drawing of the refrigerator in Embodiment 1 of this invention Sectional drawing of the principal part of the refrigerator in Embodiment 1 of this invention Sectional drawing of the principal part of the refrigerator in Embodiment 1 of this invention Sectional drawing of the principal part of the refrigerator in Embodiment 1 of this invention Sectional drawing of the principal part of the refrigerator in Embodiment 2 of this invention Sectional drawing of the principal part of the refrigerator in Embodiment 3 of this invention Partial sectional view of a conventional refrigerator

  According to a first aspect of the present invention, there is provided a heat insulating box, a refrigerating room provided at an upper part of the heat insulating box, a freezing room provided at a lower part of the heat insulating box, a heat insulating partition wall for partitioning the refrigerating room and the freezing room, Door switch for confirming the opening and closing of the refrigerator compartment, a refrigerator room temperature control unit for adjusting the flow rate of the cold air discharged to the refrigerator compartment, illumination means for lighting the refrigerator compartment, and a machine provided below the refrigerator compartment A control board for controlling the entire refrigerator provided in the machine room, a door switch wiring for the door switch connected to the control board, and a fixing means for providing the door switch wiring on the outside of the inner box of the heat insulation box To attach the control board by providing the door switch wiring path fixed using, and the door switch wiring path provided with the wiring of the lighting means and the wiring of the blower for circulating cool air in the heat insulation box wrapped by the fixing means Insulation box thickness The electrical wiring of each part is connected to the control board while reducing the power consumption, and the control board is placed in the machine room. As a result, it is possible to prevent cost deterioration while improving energy saving.

  According to the second aspect of the invention, in particular, the fixing means of the first aspect of the invention is provided with a plurality of claw structure fixing parts integrated with the inner box in the inner box of the heat insulating box, thereby providing door switch wiring and illumination. Wiring of the means and wiring of the blower are easily performed, and the cost can be reduced by shortening the assembly time and improving the reliability.

  According to the third invention, in particular, the door switch wiring of the first or second invention passes through the heat insulating partition wall from a door switch provided using a part of the heat insulating partition wall, and is provided at the rear of the freezer compartment. By bundling with the heater wiring of the defroster in the chamber and passing through a part of the inner box of the heat insulation box constituting the cooler chamber and facing the outside of the inner box, the door switch wiring is minimized. By facing the outside of the inner box at a distance and bundling it with the heater wiring, it can also be used as the through-hole of the inner box, and the cost can be reduced by shortening the door switch wiring and reducing the through-hole. it can.

  In the fourth aspect of the invention, in particular, the refrigerated room temperature adjustment operation unit of any one of the first to third inventions is configured by a manual damper, so that the refrigeration room temperature adjustment operation unit is simplified, The electrical wiring is also omitted, and the cost can be reduced.

  In the fifth aspect of the invention, in particular, the refrigeration room of any one of the first to fourth aspects is provided with a refrigeration room temperature adjustment instruction unit for instructing temperature adjustment arranged in a refrigeration room duct provided on the back of the refrigeration room, and illumination. By adjusting the refrigerating room according to the data of the refrigerating room temperature detection unit provided in the vicinity of the means, the temperature detecting sensor for the freezing room and its wiring are omitted, simplifying the electrical wiring and refrigerating room temperature Control by the adjustment instruction unit and the refrigerator compartment temperature detection unit also serves as temperature adjustment of the freezer compartment, so that parts can be omitted and cost can be reduced.

  In the sixth aspect of the invention, in particular, the wiring of the refrigerator compartment temperature detection unit according to any one of the first to fifth aspects uses fixing means provided outside the heat insulating box after being bundled with the electric wiring of the lighting means. As a result, the electrical wiring of the refrigerator compartment temperature detection unit faces the outside of the inner box at the shortest distance and is bundled with the electrical wiring of the lighting means, so that it also serves as the through-hole of the inner box. Costs can be reduced by shortening the electrical wiring of the room temperature detector and reducing the number of through holes.

  In the seventh invention, in particular, the illumination means according to any one of the first to sixth inventions is disposed in the recess of the heat insulating portion when provided in the refrigerator compartment duct, and does not contact the cold air flowing into the refrigerator compartment duct. By doing in this way, the heat | fever of an illumination means will not be transmitted to cold, and the increase in power consumption can be prevented.

  In the eighth aspect of the invention, in particular, the refrigerated room temperature adjustment operation part of any one of the first to seventh aspects of the invention is provided with an electric damper on the heat insulating partition wall rising part configured by projecting the upper plate of the heat insulating partition wall. By configuring, the flow rate of the cold air is accurately controlled from the data of the refrigerating room temperature detection unit, and the power consumption can be reduced.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the present embodiment.

(Embodiment 1)
FIG. 1 is a front cross-sectional view showing the configuration of the refrigerator in the first embodiment of the present invention, FIG. 2 is a side cross-sectional view of the refrigerator of the same embodiment, and FIG. 3 is a refrigerator of the same embodiment. FIG. 4 is a perspective view showing the appearance of the inner box of the heat insulation box of the refrigerator according to the embodiment.

  1, 2, 3, and 4, reference numeral 20 denotes a refrigerator body, in which a foam heat insulating material 23 is filled between a resin inner box 21 and a steel plate outer box 22 to form a heat insulating box 24. is doing. The foam heat insulating material 23 is comprised with the urethane foam heat insulating material. 25 is a heat insulation partition wall and partitions the heat insulation box 24 up and down. 26 is a refrigerator compartment, 27 is a freezer compartment. A hinge-type refrigerator compartment door 28 is configured at the front opening of the refrigerator compartment 26, and a hinge-type or drawer-type refrigerator compartment door 29 is configured at the front opening of the freezer compartment 27.

  Reference numeral 30 denotes a cooler chamber configured at the rear of the freezer compartment 27, and the freezer compartment 27 and the cooler chamber 30 are partitioned by a cooler compartment cover 31. Reference numeral 32 denotes a cooler, and a defrosting device 33 is disposed below the cooler. The defrosting device 33 includes a defrosting heater and a defrosting water tray. A blower 34 uses a DC box-type axial flow fan. The blower 34 is press-fitted and supported by the heat insulating material 36 in the heat insulating partition wall 25. For this reason, the blower 34 has a configuration in which the main part is accommodated in the press-fit portion 35 of the heat insulating partition wall 25.

The heat insulating material 36 is made of a polystyrene-based resin (may be a polystyrene foam or a urethane foam heat insulating material). 37 is a resin part which comprises the exterior of the heat insulation partition wall 25, 37a is a lower board, 37b is an upper board. The lower plate 37 a constitutes the ceiling of the freezer compartment 27, and the upper plate 37 b constitutes the bottom of the refrigerator compartment 26. The heat insulating partition wall 25 is provided with a heat insulating partition wall opening 25a provided at the lower rear of the refrigerator compartment duct 40 and a return passage 25b below the heat insulating partition wall opening 25a.

  Reference numeral 38 denotes a decorative cover formed on the back surface of the refrigerator compartment 26, and a heat insulating portion 39 formed of a polystyrene resin (styrene foam) is formed inside the decorative cover 38. The decorative cover 38 and the heat insulating portion 39 constitute a refrigerator compartment duct 40. The heat insulating part 39 constitutes a cold air passage 42 that guides the cold air 41 discharged from the blower 34 to the upper side between the heat insulating part 39. The cold air passage 42 forms a Y-shaped passage shape on the back surface of the refrigerating chamber 26, and the cold air 41 is branched and supplied above.

  A throttle part 42 a is provided below the cold air passage 42, and distribution of the cold air 41 to the refrigerator compartment 26 and the freezer compartment 27 is determined. The refrigerator compartment duct 40 is provided in a shape protruding from the back surface of the refrigerator compartment 26, and the plurality of upper cold air outlets 43 above the decorative cover 38 and the plurality of cold air outlets 44 on the side are connected to the refrigerator compartment 26. The cool air 41 is blown out toward the ceiling or side of the inner wall.

  The refrigerating room duct 40 and the heat insulating partition wall 25 are connected to each other in such a manner that the heat insulating part 39 of the refrigerating room duct 40 is inserted into the opening of the press fitting part 35 in which the blower 34 is accommodated in an in-row configuration. With this attachment, the press-fit portion 35 also constitutes a part of the cold air passage 42. A sealing material (not shown) is provided at the contact portion of the in-row configuration to prevent the cool air 41 from leaking.

  45 is a plurality of shelf plates provided above and below in the refrigerator compartment 26, 46 is a refrigerator compartment case (vegetable case etc.) provided below the bottom shelf 45 of the plurality of shelf plates 45 of the refrigerator compartment 26. ). Reference numeral 47 denotes a plurality of cases provided in the freezer compartment 27.

  48 is illumination means provided in the refrigerator compartment duct 40. The illumination means 48 is disposed in the recess 49 of the heat insulating portion 39 when provided in the refrigerator compartment duct 40, and does not contact the cold air 41 flowing into the refrigerator compartment duct 40. I am doing so. This dent 49 is provided between the upper part of the branched portion of the Y-shaped cold air passage 42 and the upper blow-out opening 43, and the illumination means 48 passes through the opening 50 of the decorative cover 38 to provide the inside of the refrigerator compartment 26. Lighting is performed.

  The illuminating means 48 includes a plurality of semiconductor light emitting elements (LEDs) 51, and each semiconductor light emitting element 51 is arranged along a plurality of shelf plates 45 in the refrigerator compartment 26, and illumination between the shelves 45. Like to do. The arrangement of the plurality of shelves 45 in this case is a standard arrangement, and for example, an arrangement at the time of shipment of the refrigerator main body 20 is assumed.

  Reference numeral 52 denotes an illumination cover of the illumination means 48 made of a transparent or translucent resin material provided so as to cover the opening 50 of the decorative cover 38. By the illumination cover 52, the light of the semiconductor light emitting element 51 having high directivity is provided. A wide range of illumination between the shelves 45 is performed. The illumination cover 52 refracts the light of the semiconductor light emitting element 51 having strong directivity so that the degree of diffusion of the light of the semiconductor light emitting element 51 is diffused to the irradiation angle between the shelves 45.

  Further, the illumination cover 52 prevents the cold air 41 circulating in the refrigerator compartment 26 from entering the recess 49. The electrical wiring 53 of the illumination means 48 passes through the heat insulating portion 39 of the refrigerator compartment duct 40, is fixed by the fixing means 55 in the heat insulating box body 24 through the through hole 54 of the inner box 21 of the heat insulating box body 24, and is connected. I have to.

  Since the electric wiring 53 of the illumination means 48 is fixed when the foam heat insulating material 23 is poured into the heat insulating box 24, the fixing means 55 is usually composed of a plurality of temporary fixing tapes. A connector (not shown) is provided in the middle of the electrical wiring 53 in accordance with the attachment / detachment of the refrigerator compartment duct 40.

  Reference numeral 56 denotes a machine room disposed at the lower rear of the refrigerator main body 20 and is provided with a compressor 57. The machine room 57 is provided with a control board 58 for controlling the entire refrigerator main body 20. All electrical wiring is connected to the control board 58.

  59 is a gasket attached to the outer peripheral portions of the inner surfaces of the refrigerator compartment door 28 and the freezer compartment door 29, and the gasket 59 is pressed against the heat insulating box 24 for sealing.

  A projecting portion 60 projects from the inner surface of the freezer compartment door 29 of the freezer compartment 27 and is provided over the entire peripheral wall of the inner surface of the freezer compartment door 29. The projecting portion 60 and the inner box 21 or the heat insulating partition wall 25 constitute a substantially horizontal space 61, and the creeping distance of the space 61 is increased to reduce the amount of cold air 41 that can enter the space 61. I have to.

  Similarly, a protrusion 62 protruding from the inner surface of the refrigerator compartment door 28 of the refrigerator compartment 26 is provided, a space 63 is formed by the inner box 21 or the heat insulating partition wall 25, and the creeping distance of the space 63 is increased to increase the cold air 41. The amount of intrusion into the space 63 is reduced.

  Reference numeral 64 denotes a door switch provided on the front surface 25c of the heat insulating partition wall 25. When the door switch 64 is pushed by a protrusion 28a provided at the lower part of the refrigerator compartment door 28 when the refrigerator compartment door 28 is closed, the door switch 64 is turned on. The illumination means 48 is turned off so as to be turned off. Further, the door switch 64 is provided on the upper plate 37b of the heat insulating partition wall 25 or the inner wall side surface of the refrigerator compartment 26, and is pushed by the projecting portion 62 of the refrigerator compartment 26 so that the door switch 64 is turned off and the illumination means 48 is turned off. It can also be turned off. The door switch 64 is configured by a push button method or a hall element.

  Reference numeral 65 denotes a door switch wiring that passes through the heat insulating material 36 of the heat insulating partition wall 25, faces the outside of the inner box 21 from the through-hole 66 of the inner box 21 at a substantially shortest distance, and is fixed by the fixing means 67. Yes. Since the door switch wiring 65 is fixed when the foam heat insulating material 23 is injected into the heat insulating box 24, the fixing means 67 is usually composed of a plurality of temporary fixing tapes. Reference numeral 68 denotes a door switch wiring path, which is configured in a straight line so that the door switch wiring 65 coming out of the through-hole 66 is connected to the control board 58 in the machine room 56 at a substantially shortest distance, and the outer box of the heat insulating box body 24. The machine room 56 is configured to face the machine room 56 from a part of the ceiling of the machine room 56.

  In addition, the electrical wiring 69 of the blower 34 passes simultaneously from the through-hole 54 of the electrical wiring 53 of the illumination means 48, and the electrical wiring 53 of the illumination means 48 and the electrical wiring of the blower 34 are passed to the door switch wiring path 68 by the fixing means 55. 69 is wrapped and provided.

  Further, from the through-hole 66 of the door switch wiring 65, one of the electrical wirings 70 of the heater of the defrosting device 33 in the cooler chamber 30 disposed behind the freezing chamber 27 is bundled with the door switch wiring 65 and the inner box 21. The door switch wiring path 68 is wrapped so as to face the outside.

Further, the other electrical wiring 71 of the heater of the defrosting device 33 (including a bimetallic electrical wiring for temperature control of the heater of the defrosting device 33 (not shown)) is a through-hole 66 in the vertical direction of the inner box 21. Of the inner box 21 from a through-hole 72 provided at a position corresponding to the length of the heater of the defroster 33 in a substantially horizontal direction.
It is fixed by the fixing means 73 so as to face the outside of. The other electrical wiring 71 of the heater of the defrosting device 33 is extended to the vicinity of the through-hole 66, fixed by the fixing means 67, and provided so as to wrap around the door switch wiring path 68.

  The refrigeration room temperature adjustment operation for adjusting the temperature of the refrigeration chamber 26 by changing the passage area of the refrigeration portion 42a in order to determine the distribution of the cold air 41 to the refrigeration chamber 26 and the freezer compartment 27 in the throttle portion 42a of the refrigeration chamber duct 40. The part 74 is provided in the refrigerator compartment duct 40. The refrigerated room temperature adjustment operation unit 74 is configured by a manual damper.

  In addition, a refrigeration room temperature adjustment instruction section 75 for giving an instruction to adjust the temperature of the refrigeration room 26 is provided on the front surface of the refrigeration room duct 40. The refrigeration room temperature adjustment instruction section 75 is constituted by a resistor such as a volume, and is refrigerated. A part of the heat insulating portion 39 that is independent of the cold air passage 42 of the chamber duct 40 is used for mounting, and the adjustment knob 75a faces the refrigerator compartment 26. The electric wiring 76 of the refrigerated room temperature adjustment instruction section 75 passes through the heat insulating portion 39 of the refrigerator compartment duct 40 and is fixed by the fixing means 55 in the heat insulating box body 24 through the through-hole 54 of the inner box 21 of the heat insulating box body 24. The door switch wiring path 68 is wrapped so as to be provided.

  Reference numeral 77 denotes a refrigerating room temperature detection unit composed of a thermistor or a thermocouple, which is arranged on a part of the substrate of the plurality of semiconductor light emitting elements (LEDs) 51 of the illumination means 48. The compressor 57 is turned on / off or output down according to the data of the refrigerating room temperature detection unit 77 so as to match the instruction of the refrigerating room temperature adjustment instruction unit 75. The electrical wiring 78 of the refrigerator compartment temperature detection unit 77 is bundled with the electrical wiring 53 of the lighting means 48, passes through the thermal insulation part 39 of the refrigerator compartment duct 40, and passes through the through-hole 54 of the inner box 21 of the thermal insulation box 24. It is fixed by the fixing means 55 in the body 24 and is provided by being wrapped around the door switch wiring path 68.

  The operation | movement and effect | action are demonstrated in the refrigerator comprised as mentioned above.

  The cool air 41 generated by cooling by the cooler 32 is distributed and supplied to the refrigerator compartment 26 and the freezer compartment 27 by the blower 34. The cold room 41 is supplied with cold air 41 from the upper cold air outlet 43 and the cold air outlet 44 of the cold room duct 40 so that the inside of the cold room 26 is circulated uniformly. Part of the cool air 41 supplied by the blower 34 circulates in the freezer compartment 27 from the cooler chamber 30 through the opening portion of the cooler chamber cover 31. The discharged cold air 41 cools the refrigerator compartment 26 and the freezer compartment 27, and in the refrigerator compartment 26, the cooler 32 passes through the return passage 25 b from the heat insulating partition wall opening 25 a provided at the lower rear of the refrigerator compartment duct 40. I'm trying to return to. Further, in the freezer compartment 27, the cooler compartment cover 31 is returned to the cooler 32 from the lower opening.

  The air volume control of the cold air 41 supplied to the refrigerator compartment 26 and the freezer compartment 27 is performed by opening and closing the throttle portion 42a provided at the lower portion of the cold air passage 42 of the refrigerator compartment duct 40 with the refrigerator room temperature adjusting operation portion 74. The adjustment operation unit 74 instructs the ratio of the cool air 41 supplied from the cooler chamber 30 through the fan 34 to the refrigerating chamber duct 40. The refrigerated room temperature adjustment operation unit 74 is configured by a manual damper and is operated by a user. The temperature of the refrigerator compartment 26 and the freezer compartment 27 is adjusted with respect to the air volume by turning the compressor 57 on and off or reducing the output based on the data of the refrigerator compartment temperature detector 77.

The illumination means 48 is provided in the recessed portion 49 of the heat insulating portion 39 so that it does not come into contact with the cold air 41 in the cold air passage 42 and does not cause heat exchange or disturbance of the flow of the cold air 41. Moreover, it arrange | positions above the branch part of the Y-shaped cold air | gas channel | path 42, and it integrates with the refrigerator compartment duct 40 using the part which does not obstruct the cold air | gas channel | path 42, and enables attachment or detachment. The illumination means 48 is composed of a plurality of semiconductor light emitting elements 51, each of the semiconductor light emitting elements 51 is arranged so as to improve illumination between the shelves 45, and the illumination cover 52 diffuses light, A wide range of lighting is provided.

  The heat insulating partition wall 25 that partitions the inner box 21 up and down presses and supports the blower 34 in the insertion portion provided at the rear. The blower 34 is an axial fan, and a cushioning material is wound around the outer periphery of the blower 34 so as to close a gap with the insertion portion. The blower 34 that is press-fitted and supported can remove the blower 34 upward from the heat insulating partition wall 25, thereby enabling services such as failure of the blower 34.

  Further, in the assembly process of the heat insulating box 24, the heat insulating partition wall 25 is temporarily fixed at a predetermined position of the inner box 21 with the blower 34 attached, and the foam heat insulating material 23 (foam urethane) is provided between the outer box 22 and the inner box 21. ) And leaking the foam heat insulating material 23 from the portion of the inner box 21 corresponding to the side of the heat insulating partition wall 25, the heat insulating partition wall 25 is fixed at a predetermined position. Thus, the refrigerator main body 20 shown in FIG. 1 and FIG. 2 is completed through each assembly process.

  In addition, the electric wiring 53 of the lighting unit 48, the electric wiring 69 of the fan 34, the electric wiring 76 of the refrigeration room temperature control instruction unit 75, and the electric wiring 78 of the refrigeration room temperature detection unit 77 are bundled from the through-hole 54 and are outside the inner box 21. Then, the fixing means 55 is attached and temporarily fixed from above the through-hole 54. One of the electrical wiring of the door switch wiring 65 and the heater of the defroster 33 is bundled from the through-hole 66 so as to face the outside of the inner box 21, and the fixing means 67 is pasted and temporarily fixed from above the through-hole 66. ing. The other 71 of the electrical wiring of the heater of the defrosting device 33 faces the outside of the inner box 21 from the through hole 72, and a fixing means 73 is attached and temporarily fixed from above the through hole 72.

  The electrical wiring 53 of the lighting means 48, the electrical wiring 69 of the fan 34, the electrical wiring 76 of the refrigeration room temperature control instruction section 75, the electrical wiring 78 of the refrigeration room temperature detection section 77, and the other wiring 71 of the heater of the defroster 33 The fixing means 67 is attached and temporarily fixed together by the fixing means 67 so as to reach the through-hole 66 at a substantially shortest distance. Thereafter, these electric wirings are wrapped in the door switch wiring path 68 and connected to the control board 58 in the machine room 56 in a substantially straight line, so that the ceiling portion of the machine room 56 in the outer box 22 of the heat insulation box 24 is provided. It faces the inside of the machine room 56 from a part.

  In order to facilitate assembly and maintenance from the refrigerator compartment 26 and the freezer compartment 27, these electrical wirings are provided with removable connectors in the middle.

  As described above, in the present embodiment, the refrigerator compartment 26 provided in the upper part of the heat insulation box 24, the freezer compartment 27 provided in the lower part of the heat insulator box 24, and the heat insulation partitioning the refrigerator compartment 26 and the freezer compartment 27. The partition wall 25, a door switch 64 for confirming opening / closing of the refrigerator compartment door 28 of the refrigerator compartment 26, a refrigerator room temperature adjusting operation unit 74 for adjusting the flow rate of the cold air 41 discharged to the refrigerator compartment 26, and the inside of the refrigerator compartment 26 Illumination means 48 for performing illumination, a machine room 56 provided below the refrigerator compartment 26, a control board 58 for controlling the entire refrigerator provided in the machine room 56, and a door switch of the door switch 64 connected to the control board 58 Wiring 65, door switch wiring path 68 in which door switch wiring 65 is fixed using fixing means 55 provided outside the inner box 21 of the heat insulation box 24, and wiring 53 of the illumination means 48 in the door switch wiring path 68. Thermal insulation Since the wiring 69 of the blower 34 that circulates the cold air 41 in the body 24 is provided by being wrapped by the fixing means 67, the electrical wiring of each component can be performed without reducing the thickness of the heat insulating box 24 in order to attach the control board 58. The control board 58 is arranged in the machine room 56 and the wiring of each component is housed in the heat insulation box 24 to deteriorate the operability and design of the refrigerator main body 20. Therefore, the cost can be reduced while improving the energy saving performance.

  Further, in the present embodiment, the door switch wiring 65 passes through the inside of the heat insulating partition wall 25 from the door switch 64 provided using a part of the heat insulating partition wall 25, and the cooler chamber 30 provided behind the freezer compartment 27. Since a part of the inner box 21 of the heat insulating box 24 constituting the cooler chamber 30 is passed through after being bundled with one of the heater wirings of the inner defrosting device 33, it faces the outside of the inner box 21. The door switch wiring 65 faces the outside of the inner box 21 at the shortest distance and is bundled with one of the heater wirings 70, so that the through-hole 66 of the inner box 21 is also used, and the door switch wiring 65 is shortened. Costs can be reduced by reducing the number of through holes.

  In the present embodiment, since the refrigerated room temperature adjustment operation unit 74 is configured by a manual damper, the refrigeration room temperature adjustment operation unit 74 is simplified, and electrical components and their electrical wiring are also omitted. Reduction can be performed.

  In the present embodiment, the refrigeration room 26 has a refrigeration room temperature adjustment instruction section 75 for instructing temperature adjustment arranged in the refrigeration room duct 40 provided on the back surface of the refrigeration room 26, and is provided in the vicinity of the illumination means 48. Since the refrigerating room 26 is adjusted based on the data of the room temperature detecting unit 77, the temperature detecting sensor and its wiring of the freezing room 27 are omitted, and the simplification of the electric wiring and the refrigerating room temperature adjustment instruction unit 75 are performed. Control by the refrigerator compartment temperature detector 77 also serves to adjust the temperature of the freezer compartment 27, so that parts can be omitted and costs can be reduced.

  In the present embodiment, the illumination means 48 is arranged in the recess 49 of the heat insulating portion 39 when it is provided in the refrigerating room duct 40 so that it does not come into contact with the cold air 41 flowing into the refrigerating room duct 40. The heat of the illumination means 48 is not transmitted to the cold air 41, and an increase in power consumption can be prevented.

  Moreover, in this Embodiment, it is provided in the back surface of the refrigerator box 26 comprised inside the heat insulation box 24 and the heat insulation box 24, the refrigerator compartment duct 40 which supplies the cold air 41 upwards from the bottom, and the refrigerator compartment The heat insulation part 39 which comprises the inner wall of the duct 40 and formed the cold air | gas channel | path 42, the several shelf board 45 provided in the refrigerator compartment 26, and the illumination means provided in the refrigerator compartment duct 40, and illuminates the inside of the refrigerator compartment 26 48, and the lighting means 48 has the plurality of semiconductor light emitting elements 51 arranged along the plurality of shelf boards 45, so that each semiconductor is placed in the storage items placed on the plurality of shelves 45 in the refrigerator compartment 26. Light from the light emitting element 51 is irradiated, and the recognition and removal of the stored items can be facilitated.

  In the present embodiment, the heat insulation box 24 and the refrigerating room duct 40 that supplies the cold air 41 from the bottom to the top are provided on the back surface of the refrigerating room 26 configured inside the heat insulation box 24. By supplying the cool air 41 in the same direction, unifying the blowout state of the cool air 41 and making the blowout of the cool air 41 uniform, the temperature distribution in the refrigerator compartment 26 can be made uniform.

  Further, in the present embodiment, the refrigerator compartment duct 40 causes the cold air 41 to flow toward the side of the inner wall of the refrigerator compartment 26 from a plurality of cold air outlets 44 provided on the side protruding from the back of the refrigerator compartment 26. Since the supply is performed, the cold air 41 moves along the inner wall of the refrigerator compartment 26 to form a flow that wraps the stored items, and the stored items can be cooled uniformly.

  Further, in the present embodiment, the refrigerator compartment duct 40 is provided with a cold air passage 42 in the shape of a Y, an upper cold air outlet 43 is provided at the upper end thereof, and the upper air outlet 44 and the Y-shaped cold air passage 42. Since the illumination means 48 is provided between the branched portions, it is not necessary to provide an irregular protruding portion in the refrigerator compartment 26 by providing the illumination means 48, and the circulation of the cold air in the refrigerator compartment 26 is rectified, The stored items can be cooled uniformly.

In the present embodiment, since the illumination means 48 diffuses the light by the illumination cover 52, the illumination means 48 can illuminate a wide range even with the light of the highly directional semiconductor light emitting element 51, and facilitates discrimination of the stored items. be able to.

  Further, in the present embodiment, the illumination means 48 can adjust the degree of light diffusion by the illumination cover 52 and can mainly illuminate between the shelves 45 with the light of the semiconductor light emitting element 51 having strong directivity. It is possible to easily distinguish the stored items by preventing the light from being excessively dispersed.

  In the present embodiment, and in this embodiment, the illumination means 48 diffuses the light by the illumination cover 52, so that even the light of the highly directional semiconductor light emitting element 51 is dispersed and an afterimage to the eyes. Can be prevented from remaining.

  In the present embodiment, since the illumination unit 48 and the refrigerator compartment temperature detection unit 78 are integrated with the refrigerator compartment duct 40, the refrigerator compartment duct 40 can be easily assembled and maintained.

  Moreover, in this Embodiment, by forming the substantially horizontal space 61 with the protrusion part 60 and the inner box 21 which protruded from the freezer compartment door 29 inner surface of the freezer compartment 27, the creeping distance of this space 61 is adjusted. The amount of cool air 41 entering the space 61 can be reduced, and an increase in power consumption can be prevented.

  Moreover, in this Embodiment, by forming the substantially horizontal space 63 by the protrusion part 62 and the inner box 21 which protruded from the inner surface of the refrigerator compartment door 28 of the refrigerator compartment 26, the creeping distance of this space 63 is adjusted. The amount of cool air 41 entering the space 63 can be reduced, and an increase in power consumption can be prevented.

  Moreover, in this Embodiment, since the heat insulation partition wall 25 press-fits and supports the air blower 34 in the insertion part provided in the back, it is independent from the heat insulation partition wall 25 by removing the refrigerator compartment duct 40. By removing the blower 34 upward, services such as failure of the blower 34 can be easily made possible.

  In the present embodiment, since the electric wiring of each component is bundled and temporarily fixed at the three places of the fixing means 54, the fixing means 67, and the fixing means 73, the number of temporary fixing of the electric wiring is reduced and the cost is reduced. Can be planned.

  In the present embodiment, the heater wiring of the defrosting device 33 and the heater wiring of the defrosting device 33 are exposed to the outside of the inner box 21 from the through-hole 66 and the through-hole 72, respectively. Therefore, the electrical wiring is connected at a substantially shortest distance, and the cost can be reduced.

  Further, since the through hole 66 and the through hole 72 are respectively exposed to the outside of the inner box 21, erroneous wiring can be prevented and wiring can be simplified.

(Embodiment 2)
FIG. 5 is a cross-sectional view of the main part showing the configuration of the refrigerator in the second embodiment of the present invention.
In FIG. 5, the fixing means 79 is configured by providing the inner box 21 of the heat insulating box body 24 with a plurality of claw-structure fixing portions 80 that are integrated with the inner box 21.

The operation | movement and effect | action are demonstrated in the refrigerator comprised as mentioned above.
The electrical wiring 52 of the illumination means 48, the electrical wiring 69 of the fan 34, the electrical wiring 76 of the refrigeration room temperature control instruction section 75, and the electrical wiring 78 of the refrigeration room temperature detection section 77 are bundled from the through-hole 54 and exposed to the outside of the inner box 21. The door switch wiring 65 and one of the electrical wirings of the heater of the defroster 33 are connected to the through-hole 6.
6, the other 71 of the electric wiring of the heater of the defrosting device 33 faces the outside of the inner box 21 from the through-hole 72, and each through-hole 54, through-hole 67, Temporary fixing is performed by sandwiching each electric wiring in a fixing portion 80 of fixing means 79 integrally formed with the inner box 21 in the vicinity of the through hole 72. These electric wirings are wrapped in the door switch wiring path 68 and connected to the control board 58 in the machine chamber 56 in a substantially straight line so that a plurality of electric wirings are arranged in the middle of each electric wiring and in the middle of the door switch wiring path 68. A fixing portion 80 is provided so as to temporarily fix each electric wiring.

  As described above, in the present embodiment, the fixing means 79 is provided with the plurality of claw structure fixing portions 80 integrally formed with the inner box 21 in the inner box 21 of the heat insulating box 24. The switch wiring 65, the wiring 53 of the illumination means 48, and the wiring 69 of the blower 34 are easily performed, and the cost can be reduced by shortening the assembly time and improving the reliability.

  In addition, the fixing | fixed part 80 can also be fixed by winding each electric wiring around a protrusion-shaped structure.

(Embodiment 3)
FIG. 6: is principal part sectional drawing which shows the structure of the refrigerator in the 3rd Embodiment of this invention.

In FIG. 6, the refrigerated room temperature adjustment operation unit 74 is configured by an electric damper 82 in a heat insulating partition wall rising portion 81 formed by projecting the upper plate 37 b of the heat insulating partition wall 25. The electric damper 82 is
The amount of cool air 41 supplied automatically to the refrigerator compartment 26 is adjusted by changing the opening of the damper 84 by the motor 83. The temperature detection of the refrigeration room temperature adjustment operation unit 74 is performed by a refrigeration room temperature detection unit 77 configured by a thermistor or a thermocouple in a part of the refrigeration room duct 40. The electric wiring 85 of the motor 83 passes through the through hole 54 of the electric wiring 53 of the lighting means 48 together with the electric wiring 69 of the blower 34, and is fixed to the door switch wiring path 68 by the fixing means 55 and the electric wiring 53 of the lighting means 48 and the blower. 34 are provided so as to be wrapped together with 34 electric wirings 69.

  The operation | movement and effect | action are demonstrated in the refrigerator comprised as mentioned above.

  The electric damper 82 automatically opens and closes based on the data in the refrigerator compartment temperature detector 77 to adjust the flow rate of the cold air 41 blown out of the refrigerator compartment duct 40. In accordance with this operation, the control board 58 turns on or off the compressor 57 or lowers the output to match the instruction of the refrigerated room temperature adjustment instruction unit 75.

  As described above, in the present embodiment, since the electric damper 82 is provided, the flow rate of the cold air 41 is accurately controlled from the data of the refrigerating room temperature detection unit 77, and the power consumption is reduced. Can do.

  Further, when the electric damper 82 operates the defrosting device 33 to defrost the cooler 32, the electric damper 82 is closed and the cold air passage 42 is closed, so that the heat of the heater of the defrosting device 33 is reduced. Since heat is not radiated to the refrigerator compartment 26 side, power consumption when defrosting can be reduced.

  As described above, the refrigerator according to the present invention simplifies the electrical wiring of each component and connects it to the control board 58 of the machine room 56, thereby improving energy saving and reducing costs. It can be applied not only to household refrigerators but also to commercial refrigerators.

DESCRIPTION OF SYMBOLS 20 Refrigerator main body 21 Inner box 22 Outer box 25 Heat insulation partition wall 26 Refrigerating room 27 Freezer room 28 Refrigerating room door 29 Freezer room door 32 Cooler 34 Blower 39 Heat insulation part 40 Refrigerating room duct 41 Cold air 42 Cold air passage 43 Upper cold air outlet 44 Cold air outlet 45 Shelf plate 48 Illumination means 49 Recessed portion 51 Semiconductor light emitting element 56 Machine room 58 Control board 64 Door switch 65 Door switch wiring 68 Door switch wiring path

Claims (8)

A heat insulating box, a refrigerating room provided in an upper portion of the heat insulating box, a freezing room provided in a lower portion of the heat insulating box, a heat insulating partition wall separating the refrigerating room and the freezing room, and a refrigerating room of the refrigerating room A door switch for confirming the opening and closing of the door, a refrigeration room temperature adjusting operation unit for adjusting the flow rate of the cold air discharged to the refrigeration room, illumination means for illuminating the inside of the refrigeration room, and a lower part of the refrigeration room A machine room, a control board for controlling the entire refrigerator provided in the machine room, a door switch wiring of the door switch connected to the control board, and the door switch wiring provided outside the inner box of the heat insulation box A door switch wiring path fixed using a fixing means, and a refrigerator provided with the electric wiring of the lighting means and the electric wiring of a blower for circulating cool air in the heat insulation box wrapped in the door switch wiring path by the fixing means . The refrigerator according to claim 1, wherein the fixing means is provided with a plurality of claw structure fixing portions integrally formed with the inner box in the inner box of the heat insulating box. Door switch wiring passes through the inside of the heat insulating partition wall from a part of the door switch provided on the heat insulating partition wall, and is bundled with the electrical wiring of the heater of the defroster in the cooler room provided behind the freezer compartment before cooling. The refrigerator according to claim 1 or 2, wherein a part of the inner box of the heat insulating box constituting the chamber is penetrated to be desired outside the inner box. The refrigerator according to any one of claims 1 to 3, wherein the refrigerated room temperature adjustment operation unit is configured with a manual damper. The refrigerating room has a freezing room temperature adjustment operation unit that instructs temperature adjustment in a refrigerating room duct provided on the back of the refrigerating room, and the refrigerating room is adjusted by the data of the refrigerating room temperature detection unit provided near the lighting means. The refrigerator according to any one of claims 1 to 4, wherein the refrigerator is performed. The refrigerator according to any one of claims 1 to 5, wherein the electric wiring of the refrigerator compartment temperature detection unit is fixed using fixing means provided outside the heat insulating box after being bundled with electric wiring of the lighting means. The refrigerator according to any one of claims 1 to 6, wherein the illuminating means is disposed in a recess of the heat insulating portion when provided in the refrigerator compartment duct so as not to contact cold air flowing into the refrigerator compartment duct. The refrigerator according to any one of claims 1 to 7, wherein the refrigerated room temperature adjusting operation unit is configured by an electric damper at a heat insulating partition wall rising portion configured by protruding an upper plate of the heat insulating partition wall.

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