JP3650015B2 - Chiller defroster - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
According to the present invention, a dew receiving device that receives defrost water from the cooler is disposed below the cooler, and the heat generated by the glass tube electric heater disposed between the cooler and the dew receiving device is provided in the cooler. The present invention relates to a defrosting device that performs defrosting, and particularly relates to an improvement in a holding structure of a lead wire for energization of the electric heater.
[0002]
[Prior art]
Prior art will be described with reference to FIGS. Reference numeral 1 denotes a refrigerator main body having a heat insulating structure in which a foam heat insulating material 4 is filled between an outer box (outer wall plate) 3 and an inner box (inner wall plate) 2. In the refrigerator main body 1, a refrigerator compartment 5, a vegetable compartment 6, and a freezer compartment 7 are partitioned from the top, and the refrigerator compartment 5 and a partition plate (compartment wall) 8 are provided at the bottom of the refrigerator compartment 5. A specific low temperature chamber 9 is provided, and the freezer compartment 7 is divided into an upper freezer compartment 10 and a lower freezer compartment 11. The front opening of the refrigerator compartment 5 is closed at one side of the refrigerator body 1 by a pivotable door 12 that is pivoted laterally by a hinge device and opened and closed. The front opening of the vegetable compartment 6 is closed by a drawer-type door 14 that is drawn forward together with the vegetable container 13 supported so as to be drawn in the front-rear direction by left and right rails or roller devices provided in the vegetable compartment 6. Like the vegetable compartment 6, the upper freezer compartment 10 and the lower freezer compartment 11 are drawer type doors that are drawn forward together with containers 15 and 16 that are supported so as to be able to be drawn in the front-rear direction with respect to the left and right rails provided in the freezer compartment. Closed at 17 and 18.
[0003]
25 is a refrigerant compressor of the refrigeration system, 26 is a condenser of the refrigerant of the refrigeration system, and 27 is an evaporating dish for evaporating defrost water of a cooler described later by the heat of the condenser 26. Reference numerals 28 and 29 are refrigerant coolers (evaporators) of the refrigeration system, 28 is a cooler for the freezer compartment 7, and 29 is a cooler for the refrigerator compartment 5. 30 is a cold air circulation blower for the freezer compartment 7, and 31 is a cold air circulation blower for the refrigerator compartment 5. The cold air cooled by the cooler 28 for the freezer compartment 7 is circulated back to the cooler 28 via the ice making chamber 20, the upper freezer compartment 10 and the lower freezer compartment 11 by the blower 30. The cold air cooled by the cooler 29 for the refrigerator compartment 5 is circulated back to the cooler 28 via the refrigerator compartment 5, the specific low temperature compartment 9 and the vegetable compartment 6 by the blower 31. The specific low temperature chamber 9 is provided with a container 50 supported so that it can be pulled out in the front-rear direction with respect to the left and right rails provided in the specific low temperature chamber 9.
[0004]
Reference numeral 32 denotes a dew receiving device that is disposed below the cooler 28 and receives defrost water from the cooler 28. Reference numeral 33 denotes a glass tube type electric heater disposed between the cooler 28 and the dew receiving device 32, and constitutes a defrosting device that defrosts the cooler 28 by the generated heat. Reference numeral 34 denotes a dew receiving device that is disposed below the cooler 29 and receives defrost water from the cooler 29. Reference numeral 35 denotes a glass tube type electric heater disposed between the cooler 29 and the dew receiving device 34, and constitutes a defrosting device that defrosts the cooler 29 by the generated heat.
[0005]
The dew receiving devices 32 and 34 are arranged so that the back surfaces thereof are surrounded by the foamed heat insulating material 4 and have the same functional configuration although the shapes thereof are slightly different due to the installation location. Therefore, the functional configuration of the dew receiving device 32 will be described with reference to FIGS. The dew receiving tool 32 has a dish shape opened upward, and a pair of left and right support portions 36 that support both ends of the glass tube electric heater 33 are integrally formed on the inner surface thereof. 37 and 37 are lead wire holding portions formed integrally with the dew receiving device 32 at positions outside the pair of left and right support portions 36, respectively, and form a groove 39 into which the energization lead wire 38 of the electric heater 33 is inserted from above. doing. The electric heater 35 and the dew receiving device 34 have the same configuration.
[0006]
[Problems to be solved by the invention]
In this type of refrigerator, normally, the energization lead wire 38 of the glass tube electric heater 33 extends upward and is connected to a power source. In this prior art, the lead wire 38 for energization of the glass tube type electric heater 33 is held from being pushed into the groove 39 of the lead wire holding portion 37 from above, and the lead wire holding portion 37 is led. Although it is easy to insert the wire 38, the lead wire 38 extends upward and is connected to the power supply line due to the relationship with the electrical components disposed above, so that the glass tube electric heater and the lead wire are disconnected. It often leads to breakage of the connection. The present invention solves such problems, and the reliability of holding the lead wire prevents damage to the connecting portion between the glass tube electric heater and the lead wire even when the lead wire is pulled upward. It provides a possible configuration.
[0007]
[Means for Solving the Problems]
As a specific means for the present invention is to solve the above problems, the cooler defrost water undergoes dew receptacle (50) is arranged below the cooler, the dew receptacle and the cooler wherein the defrosting device that performs defrost the cooler, the glass tube electric heater before Symbol dew receptacle (50) by heating the disposed glass tube electric heater (51) between (50) ( support portion for supporting the both end portions in the floating state of 51) to (52) is provided, wherein the support portion (52) is inserted frontage energizing lead wire (55) is below said glass tube electric heater (51) A lead wire holding portion (53) that presses and holds the lead wire (55) by self-restoring force when being inserted while being slightly expanded is integrally formed, and the lead wire holding portion (53) is formed by the support portion (52 In this case , a technical means is used which is formed in a lower recess portion (56) on the front side of the front end portion so as not to protrude forward from the upward projecting portion (57) .
[0008]
Further, according to the present invention, as one specific means for solving the above-described problems, the dew receiving device includes both ends of the glass tube electric heater at positions outside the support portion and the lead wire holding portion. The technical means which forms the positioning part which confronts a part side surface and restrict | limits the left-right position of the said electric heater was employ | adopted.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Next, an embodiment of the present invention will be described. 1 to 3 show one embodiment of the present invention, FIG. 1 is a perspective view of a dew receiving device, and FIG. 2 is a longitudinal sectional view showing a state in which the dew receiving device of FIG. 1 is attached to a refrigerator. FIG. 3 and FIG. 3 are perspective views for explaining the portions that support both ends of the glass tube electric heater.
[0010]
Embodiments of the present invention will be described below in the case where the defrosting apparatus of the present invention is applied to the refrigerator of FIG. 1 to 3, reference numeral 50 denotes a dew receiving device disposed below the cooler 28 or 29 so as to receive defrost water from the cooler 28 or 29. The dew receiving tool 50 has a dish-like shape opened upward, and a pair of left and right support portions 52 and 52 for supporting both ends of the glass tube electric heater 51 are integrally formed on the inner surface thereof. Reference numeral 53 denotes a lead wire holding portion formed integrally with the support portion on the front side surface of the pair of left and right support portions 52, 52. The energization lead wire 55 of the electric heater 51 has a lower insertion opening 54 formed therein. It has a function of pressing and holding the lead wire 55 by self-restoring force when inserted while being slightly expanded. The lead wire holding portions 53, 53 are formed in a recessed portion 56 on the lower front side of the support portions 52, 52 so as not to protrude forward from the upward projecting portion 57. That is, since the lead wire holding portions 53 and 53 are formed so as not to protrude from the support portions 52 and 52, an operator who is likely to occur when the lead wire holding portions 53 and 53 protrude from the support portions 52 and 52. It is also possible to suppress damage to the lead wire holding portions 53 and 53 due to such injuries and tool hitting.
[0011]
58 is a positioning that limits the left and right positions of the electric heater 51 by facing the side surfaces 59 at both ends of the glass tube type electric heater 51 at positions outside the left and right support portions 52 and 52 and the left and right lead wire holding portions 53 and 53. And is integrally formed with the dew receiving device 50. Both end portions 59 have terminal portions of the electric heater 51, and an electric insulating cover 60 made of silicon rubber is provided to cover the terminal portions. The dew receiving tool 50, the left and right support parts 52, 52 and the left and right lead wire holding parts 53, 53, and the left and right positioning parts 58, 58 formed integrally therewith are molded from a synthetic resin such as polypropylene.
[0012]
As described above, according to the present invention, the dew receiving device that receives the defrost water of the cooler is disposed below the cooler, and the heat generated by the glass tube electric heater disposed between the cooler and the dew receiving device. In the defrosting device that performs defrosting of the cooler, the dew receiving device is provided with a support portion that supports both ends of the glass tube electric heater in a floating state, and the glass tube electric When the lead wire for energization of the heater is inserted with the lower insertion opening slightly widened, a lead wire holding portion that presses and holds the lead wire by self-restoring force is integrally formed. For this reason, in the above embodiment, the lead wire 55 is pressed and held by the lead wire holding portion 53, and the lead wire 55 extends upward due to the relationship with the electrical component disposed above and is connected to the power supply line. Even when the lead wire 55 is pulled upward by the lead wire 55, the lead wire 55 enters the back side of the lead wire holding portion 53 and becomes strongly held, and the lead wire 55 does not come off from the lead wire holding portion 53. The effect of preventing breakage of the connecting portion between the lead wire 55 and the glass tube electric heater 51 can be expected.
[0013]
Further, the lead wire holding part is formed so as not to protrude from the support part. For this reason, in the above embodiment, the lead wire holding portions 53 and 53 are formed in the recessed portion 56 on the lower side of the front surface side of the support portions 52 and 52 so as not to protrude forward from the upward projecting portion 57. Further, it is possible to suppress the injury of the operator that is likely to occur when the lead wire holding portions 53 and 53 protrude from the support portions 52 and 52, and the breakage of the lead wire holding portions 53 and 53 due to the contact with the tool.
[0014]
Further, the dew receiving device is integrally provided with a positioning portion that faces the side surfaces of both ends of the glass tube electric heater at positions outside the support portion and the lead wire holding portion and restricts the left and right positions of the electric heater. Adopted technical means to form. For this reason, in the above embodiment, even if the lead wire 55 is wired upward from the lead wire holding portion 53, the positioning portion 58 does not get in the way. Further, the left and right positions of the electric heater 51 are limited by the positioning unit 58, and a predetermined position with respect to the cooler and the dew receiving device can be secured by support at the predetermined position by the support unit 52, and is further held by the lead wire holding unit 53. Further, there is no extra pulling force on the lead wire 55, and it is excellent in the effect of preventing damage to the connecting portion between the lead wire and the glass tube electric heater.
[0015]
The present invention is not limited to the above-described embodiments, and various modifications can be considered without departing from the technical scope of the present invention, and the various embodiments related thereto are included.
[0016]
【The invention's effect】
According to the first invention, the lead wire is pressed and held by the lead wire holding portion, and the lead wire is not detached from the lead wire holding portion even when the lead wire is pulled upward by the wiring work. The effect of preventing breakage of the connecting portion between the lead wire and the glass tube electric heater can be expected.
[0017]
According to the second invention, the positioning portion does not get in the way even if the lead wire is wired upward from the lead wire holding portion.
[Brief description of the drawings]
FIG. 1 is a perspective view of a dew receiving tool according to an embodiment of the present invention.
2 is a view to illustration in longitudinal section a state where the dew receptacle attached to the refrigerator of Figure 1 according to an embodiment of the present invention.
FIG. 3 is an explanatory perspective view of a portion that supports both ends of the glass tube electric heater according to the embodiment of the present invention.
FIG. 4 is a longitudinal sectional side view of a prior art refrigerator to which the present invention is applied.
FIG. 5 is a perspective view of a prior art dew catcher.
6 is a longitudinal section of the dew receiving device of FIG. 1. FIG.
FIG. 7 is an explanatory perspective view of a portion that supports both ends of a glass tube electric heater according to the prior art.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Refrigerator body 2 ... Inner box 3 ... Outer box 4 ... Insulation material 5 ... Refrigeration room 6 ... Vegetable room 7 ... Freezer room 28 ... Freezer room cooler 29 ... Refrigerator room cooler 30 Refrigeration room cold air circulation blower 31 ... Refrigeration room cold air circulation blower 50 ... Dew catcher 51 ... Glass tube electric heater 52 ... Support part 53 ... Lead wire holding part 54 ... Insertion opening 55 ... Lead wire 56 ... Depression part 57 ... overhang
58 ... Positioning portion 59 ... Side surfaces of both ends of the glass tube type electric heater 60 ... Electrical insulating cover

Claims (2)

Cooler dew receptacle for receiving said cooler defrost water downwards (50) is arranged, disposed glass tube type electric heater between the cooler and the dew receptacle (50) (51) In the defrosting device for defrosting the cooler by heat generation,
Before SL dew receptacle (50) support part for supporting the floating state both ends (52) provided in the glass tube electric heater (51),
The support portion (52), said lead wire by a self-restoring force when said glass tube electric heater (51) of the current-carrying leads (55) is inserted while widening slightly insertion frontage lower (55) A lead wire holding part (53) for holding by pressing is integrally formed ,
The lead wire holding portion (53) is formed in a state in which it does not protrude forward from the upper projecting portion (57) in the recess portion (56) on the lower front side of the support portion (52). A defroster for a cooler.   2. The positioning according to claim 1, wherein the dew receiving tool restricts the left and right positions of the electric heater facing the side surfaces of both ends of the glass tube electric heater at a position outside the support portion and the lead wire holding portion. The defroster of the cooler characterized by integrally forming the part.

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