JPH06213543A - Ice-making device in refrigerator - Google Patents

Abstract

PURPOSE:To facilitate the assembly relating to an ice-making device in which an ice-making pan provided in an ice-making chamber is fed with the water in a water tank through a conduit by pumping by forming into part of the conduit an insulating wall case as a partition between the ice-making chamber and another chamber in which the water tank is provided. CONSTITUTION:An automatic ice-making device 9 provided inside an ice-making chamber 3 of a refrigerator has an ice-making pan 10, into which chilled water in a water tank 12 placed in a freely demountable manner inside the cold storage chamber 4 is fed through a conduit by the action of a pump 20. With cooling air produced by a cooler 6 supplied through a cooling air duct 8, the water in the ice-making pan 10 is cooled and iced. By turning over the ice-making pan 10 the ice thus produced is dropped into an ice storage vessel 11 and stored therein. In this setup, at a part of an insulating partition wall 23 which separates the ice-making chamber 3 and the cold storage chamber 4 an insulating partition wall case 23a is provided in a manner of piercing through the insulating partition wall. Into a funnel-shaped part 25 of the upper part of this case 23a the lower end of an L-shaped conduit 22 on the side of the ice-making chamber is inserted and the case 23a is formed as a part of the conduit.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic ice making device for a refrigerator, and an improvement of a water pipe mounting structure for supplying water from a water pump to an ice tray via a water pipe formed by a partitioning hot wall case. Regarding

[0002]

2. Description of the Related Art Conventionally, the structure of this type of refrigerator ice making apparatus will be described with reference to FIG. 6, in which 51 is a refrigerator main body, 52 is a freezing compartment, 53 is an ice making compartment, and 54 is a refrigerating compartment. The air cooled by the cooler 56 flows into the ice making chamber 53 and the refrigerating chamber 54 through the cold air passages 58 and 59 to cool the respective chambers.

Reference numeral 62 is an ice tray which is installed so that it can be turned upside down. Reference numeral 63 is an ice storage container, and when ice making of the ice making tray 62 on the upper portion is completed, the ice making tray 62 is detected by a detection device (not shown).
Is reversed and the ice blocks fall into the ice storage container 63 and are stored therein. Reference numeral 64 denotes a water supply tank, which is located above a water receiving tray 65 provided in the refrigerating compartment 54 and stores water in advance. Then, a certain amount of water is discharged to the water receiving tray 65 by a valve (not shown).

However, as described above, when the ice making of the ice making tray 62 is completed and the ice making tray 62 is emptied by dropping the ice into the ice storage container 63, the water supply pump 66 is operated by the detection device (not shown), and water is supplied. A certain amount of water stored in the pan 65 is transferred to the ice tray 62 via the water supply pipe 67. When the above cycle is repeated and the ice storage container 63 is filled with ice, the detection apparatus (not shown) stops the cycle.

A partition wall 73 is provided between the ice making chamber 53 and the refrigerating chamber 54, a hole 75 penetrating therethrough is provided, and the water supply pipe 67 is inserted therein. Further, the water supply pipe 61 is wound with a dew-prevention heater 68, is surrounded by a heat insulator 69, and is formed so that its tip is located above the ice tray 62.

Incidentally, in this type of conventional example, the actual Kaihei 1-1368 is used.
There is number 67.

[0007]

SUMMARY OF THE INVENTION In the above prior art, the assemblability and positioning of the water supply pipe, the water tank to the water pan,
There was the following problem because no consideration was given to the purification of water that reaches the water supply pipe.

(1) A water supply pipe for transferring water from a water supply tank and a water receiving tray provided in the refrigerating compartment to an ice making tray provided in the ice making compartment passes through a partition wall which divides the refrigerating compartment and the ice making compartment. It had to be formed, and its position was also a narrow place in the back, and workability in assembly was extremely difficult.

(2) It is necessary to fix the uppermost end of the water supply pipe to an appropriate place in order to prevent water from spilling to a place other than the ice tray during water supply, corresponding to the recess of the ice tray. There were problems such as.

[0010]

In order to achieve the above object, (1) a partition pipe is formed as a part of a water supply pipe by directly forming a water guide pipe formed by a part of a partition heat wall case, thereby separating the partition heat wall. It is possible to assemble the water supply pipes, which are installed above and below, that connect the ice making part and the water supply bottle part without penetrating.

(2) The water supply pipe on the ice making chamber side is housed in the guide of the cover forming a part of the wall surface of the ice making chamber, so that the heater and the heat insulating material can be reliably positioned and fixed. Can be done.

(3) The assembling property is improved by connecting the lower part of the water supply pipe fixed in the cover of the above (2) to the upper part of the water supply pipe provided in the partition hot wall case of the above (1). Can be achieved.

(4) The vertical position of the water supply pipe above the ice tray is
In order to properly regulate and assemble, a stopper is installed at the connection point between the water supply pipe part formed by the partitioning hot wall case in (1) above and the lower part of the water supply pipe housed in the cover in (2) above. The purpose can be achieved by providing them.

(5) By projecting the lower portion of the water distribution pipe made by the partitioning hot wall case of the above (1) into the refrigerating chamber, it becomes possible to easily connect with the water distribution pipe from the pump in the water pan.
It is possible to improve the assemblability.

(6) A circumferential rising wall is provided on the surface of the heat insulating case of the partition wall in the item (1) to prevent water from entering the water supply pipe.

(7) The diameter of the spout of the water tank is such that a female wrist can be easily inserted to clean the inside (about 80).
(around mm), it is possible to purify the water tank.

(8) Place the silver-filled activated carbon input set in the water poured from the pump in the water pan, and
By providing a running water guide on the water tray so as to come into contact with the entire outer surface of the cassette, the water in the water tray can be effectively purified.

(9) By installing the cassette of the above item (8) in the auxiliary chamber of the water receiving tray and being located in the water channel flowing from the auxiliary chamber to the measuring chamber, the water in the water receiving tray is purified more completely. can do.

[0019]

[Action]

(1) By using the water pipe of the partition hot wall case as a part of the water supply pipe, the water supply pipe can be assembled without penetrating the partition wall, so that the assembling workability is improved.

(2) By accommodating the water supply pipe in the cover forming a part of the wall surface of the ice making chamber, the assembling workability is improved and the water supply failure to the ice making tray is solved.

(3) A rising wall portion is provided on the upper portion of the water conduit in the partitioning hot wall case to prevent water leakage and ingress water.

(4) The water inlet of the water tank has a large diameter (about 80
(around mm) makes it easier to clean the inside of the water tank and improves hygiene.

(5) By installing the silver-filled activated carbon cassette in the water receiving tray, the purification of water in the water receiving tray was improved.

[0024]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. FIG. 1 is a vertical sectional view showing an embodiment of the present invention. FIG. 2 is a transverse sectional view showing an embodiment of the present invention. FIG. 3 is a vertical cross-sectional view of the water tank of the embodiment of the present invention. FIG. 4 is a perspective view showing the flow of water in the water tray of the present invention and the position of the silver-filled activated carbon cassette.

First, referring to the drawings, reference numeral 1 denotes a refrigerator main body, which is formed from a freezing compartment 2, an ice making compartment 3 and a refrigerating compartment 4 in this order from the top. Further, a cooler chamber 5 is formed at the back of the freezing chamber 2. A cooler 6 is arranged inside the cooler chamber 5, and the air cooled by the cooler 6 is supplied to the freezing chamber 2 by a fan (not shown) and at the same time inside the rear wall 7 of the refrigerator body 1. By the cold air duct 8 formed in the above, it is supplied to the ice making chamber 3 and the refrigerating chamber 4. The ice making chamber 3 may be formed not in the freezing chamber 2 but in a part of the freezing chamber 2.

Reference numeral 9 denotes an automatic ice making machine installed in the ice making chamber 3, which is connected to the ice making tray 10 so that the ice making tray 10 is turned upside down.

An ice storage container 11 is detachably mounted below the ice tray 10. When the water supplied to the ice tray 10 is cooled and becomes ice, it is detected by a detection device (not shown), the ice tray 10 is inverted, and the ice is dropped into the ice storage container 11. Further, the ice tray 10 is turned over to the original state and the operation of supplying water again is repeated.

Reference numeral 12 denotes a water tank, which is detachably stored in the refrigerating compartment 4. From this water tank 12, a fixed amount of water is poured from the water pouring outlet 14 into the water receiving tray 13 arranged at the lower part of the water tank 12.

The water tray 13 includes a preliminary chamber 15 and a measuring chamber 16
However, the water in the water tank 12 is initially supplied to the spare chamber 15 side and passed through the silver-filled activated carbon cassette 18 installed in the spare chamber 15 to be purified, and then the partition wall. Water is supplied to the measuring chamber 16 from the orifice 19 of 17. A pump 20 is installed in the measuring chamber 16, and the water in the measuring chamber 16 is supplied to the ice tray 10 via a pump-side water guiding pipe 21 and a substantially L-shaped water guiding pipe 22.

As described above, the structure of the ice making cycle in which the water supplied to the water tank 12 is made into ice and stored in the ice storage container 11 has been described. One of the present inventions is a water pipe. It is about structure.

That is, a partition hot wall case 23a penetrating a part of the partition hot wall 23 which divides the ice making chamber 3 and the refrigerating chamber 4
In addition, the water conduit 24 is provided.

The water conduit 24 provided integrally with the partition hot wall case 23a is formed in a funnel-shaped portion 25 on the upper part, that is, the ice making chamber 3 side, so that the substantially L-shaped water conduit 22 on the ice making chamber 3 side can be easily inserted. In addition, the upper surface 26 of the funnel-shaped portion 25 is projected from the upper surface 27 of the partitioning hot wall case 23a to form the rising portion 25a, which is effective in preventing water from entering the water conduit 22.

Further, the water guiding portion 22b of the substantially L-shaped water guiding pipe 22.
By providing the stepped stopper portion 29, the substantially L-shaped water conduit 22 can be positioned during assembly and the efficiency of the assembly work can be improved.

Further, by making the lower end 30 of the water conduit 24 project from the lower surface 31 of the partitioning heat wall 23 and forming a tapered shape, the pump-side water conduit 21 can be easily inserted and connected, and as in the conventional case, the water conduit cannot be used. This is much more efficient than the work of assembling by cutting through the partitioning hot wall.

Further, the lower end 28 of the straight portion of the substantially L-shaped water conduit 22 is inserted into the water conduit 24, but the upper portion is substantially L.
It has a shape, and its tip 32 is positioned so as to face the concave portion 33 of the ice tray 10. Further, a heater 34 for preventing icing is wound around the straight portion of the substantially L-shaped water conduit 22, and a heat insulating material 35 is wound around the outside thereof.

Then, the substantially L-shaped water conduit, the heater and the heat insulating material are housed in the housing portion 37 of the water conduit cover 36. Further, the substantially L-shaped portion 32 at the upper end is inserted into the chimney-shaped guide portion 38 provided on the upper portion of the water conduit cover to regulate the vertical and horizontal positions of the substantially L-shaped water conduit.

Further, the water conduit cover 36 forms a part of the wall surface portion 39 of the ice making chamber 3 in addition to the storage portion 37, and cooperates with other parts forming the ice making chamber 3 to make the ice tray 10, The automatic ice machine 9 is supported and fixed in the ice making chamber 3.

As described above, the water pipe cover 36 allows the upper end 32 of the substantially L-shaped water pipe 22 and the recess 3 of the ice tray 10 to be formed.
Since the positional relationship of 3 is fixed, defective water supply to the ice tray 10 is prevented.

In order to assemble the substantially L-shaped water conduit 22 and the water conduit cover 36, the heater 34 and the heat insulating material 35 are first wound around the straight part of the substantially L-shaped water conduit, and the water conduit cover 3 is provided.
6 is stored in the storage portion 37. At the same time, the substantially L-shaped portion 32 of the substantially L-shaped water conduit is inserted into the chimney-shaped guide portion 38 of the water conduit cover, and is fixed to the water conduit cover by the band 40 so as not to come off.

Then, when the vertical lower end 28 of the substantially L-shaped water conduit 24 protruding from the lower surface of the water conduit cover is inserted into the funnel-shaped part 25 provided on the partitioning heat wall 23, the wall surface part of the water conduit cover 36. 39 is fixed to the inner wall of the ice making chamber 3.

According to the above assembling procedure, the positional relationship can be assembled very easily and accurately, so that the assembling efficiency can be improved.

The second aspect of the present invention relates to purification of water in the water tank and the water tray.

That is, referring to FIG. 3, the spout 41 provided substantially in the center of the lower surface of the water tank 12 projects in a cylindrical shape, and a thread groove is provided on the outer circumference. The caliber is of a size (around 80 mm) that makes it easy to wash the inside of a woman's wrist.

A cap 42 is screwed into the spout 41, and an outflow passage 43 and a Marriott valve 44 for opening and closing the outflow passage are provided at the center of the cap. Then, when the cap 42 of the water tank 12 is placed on the raised portion 45 of the water tray 13 so as to cover it, the Marriott valve 44
Is pushed by the raised portion 45, and the outflow passage 43 is opened. Then, the water in the water tank 12 flows out to the water receiving tray 13. Further, the water stops flowing out when the water level A reaches the tip of the draining portion 46 of the cap 42.

In the above case, during the ice making time and the ice storage container 11
Since there is no movement of water while the tank is full, water stains and impurities are likely to adhere to the water tank 12.

Therefore, it is necessary to clean the inside of the sanitary water tank 12. However, conventionally, the spout 41 is small (about 30
I couldn't wash it enough because my wrists and fingers couldn't get in. However, according to the present invention, since the spout 41 is set to a size (around 80 mm) into which a female wrist can be inserted, the wrist is inserted through the spout 41, and the finger and sponge,
Since the stains and impurities can be washed directly with a cloth or the like, the washing effect can be completely achieved. Further, if the spout 41 is set substantially at the center of the tank 12, the distance from the spout to the corner becomes average when the wrist is put in and the inside is washed, and the fingers reach everywhere to make the washing efficient. Is.

In the above description of the structure of the water tray 13, it is stated that the preparatory chamber 15 and the measuring chamber 16 are partitioned by the partition wall 17, and the preparatory chamber 15 is provided with the silver-filled activated carbon cassette 18. In the present invention, the flowing water channel guide 47 is provided so that the water flowing out from the spout 41 of the water tank 12 that is in contact with the raised portion 45 of the preliminary chamber 15 always passes through the silver-filled activated carbon cassette 18. is there. Therefore, all the water stored from the spare chamber 15 into the measuring chamber 16 is purified and antibacterial by the silver-filled activated carbon cassette 18, and is sent to the ice tray 10 by the pump 20.

In the silver-filled activated carbon cassette 18, there is formed a silver-impregnated activated carbon molded product 18a in which silver is impregnated on the surface of the activated carbon, so-called silver charcoal is mixed into the activated carbon, and a non-woven fabric 18b is wrapped around the molded product. Fibrous activated carbon pack product 18c
Is contained in the cartridge case 18d. However, the molded product 18a is usually formed of 92% activated carbon, 4% silver charcoal, and 4% binder (above% is wt). From the above, it is said that silver ions float in water and act on bacteria in the water to suppress sterilization or suppress the growth of bacteria.

[0049]

Since the present invention is configured as described above, it has the following effects.

(1) By dividing the water conduit for feeding the water in the water receiving tray to the ice tray and providing the water conduit in the part penetrating the partitioning heat wall, the assembly efficiency is greatly improved.

(2) By accommodating and fixing the substantially L-shaped water conduit on the ice making chamber side in the water conduit cover, the positioning accuracy and the assembling efficiency are improved. Furthermore, it was possible to prevent poor water injection into the ice tray.

(3) By assembling and connecting the substantially L-shaped water conduit with the partition hot-wall water conduit separately, the assembly efficiency and the work efficiency during cleaning are improved.

(4) By assembling the substantially L-shaped water conduit into the water conduit cover and fixing it with a band, the assembly strength and efficiency were improved.

(5) Assembling accuracy and efficiency are improved by providing a stopper at the connecting portion between the substantially L-shaped water pipe and the partition hot-wall water pipe. Further, by using a metal pipe for the substantially L-shaped water conduit, the heat of the antifreezing heater can be circulated to the partitioning heat material by a predetermined amount, so that the pump-side water conduit can be prevented from freezing. .

(6) The water guiding pipe of the partitioning hot wall is projected downward to facilitate the connection with the water guiding pipe from the pump side, whereby the assembling efficiency is improved.

(7) The funnel rising is provided above the water conduit of the partitioning hot wall to prevent water spillage, water intrusion, and assembly efficiency.

(8) The water injection port of the water tank has a diameter (about 80 mm) into which a woman's wrist can be inserted, so that the inside can be easily washed and the sanitary effect is improved.

(9) By providing a water flow guide so that the water always passes through the silver-filled activated carbon cassette in the water pan, the water purifying action of the water pan becomes more complete.

(10) By installing the silver-filled activated carbon cassette in the preliminary chamber of the water tray, the water purification function including the measuring chamber became more complete.

[Brief description of drawings]

FIG. 1 is a longitudinal sectional view of an essential part showing an embodiment of the present invention.

FIG. 2 is a cross-sectional view of a main part showing an embodiment of the present invention.

FIG. 3 is a vertical sectional view of a water tray and a water tank.

FIG. 4 is a perspective view of a water tray.

FIG. 5 is a sectional view of a cassette.

FIG. 6 is a vertical cross-sectional view of a main part of a conventional example.

[Explanation of symbols]

1 ... Refrigerator body 24 ... Water pipe 2 ... Freezer 25 ... Funnel-shaped part 3 ... Ice-making chamber 25a ... Rising part 4 ... Refrigerator 26 ... Funnel-shaped Upper surface 5 ... Cooler chamber 27 ... Partition heat wall upper surface 6 ... Cooler 28 ... Lower end 7 ... Rear wall 29 ... Stopper portion 8 ... Cold air duct 30 ... Lower end 9 ・ ・ ・ Automatic ice maker 31 ・ ・ ・ Lower surface 10 ・ ・ ・ Ice tray 32 ・ ・ ・ Tip 11 ・ ・ ・ Ice storage container 33 ・ ・ ・ Concave 12 ・ ・ ・ Water tank 34 ・ ・ ・ Heater 13 ・ ・ ・Water pan 35 ... Insulation 14 ... Spout 36 ... Water pipe cover 15 ... Spare chamber 37 ... Storage 16 ... Measuring chamber 38 ... Chimney-shaped guide 17 ...・ Partition wall 39 ・ ・ ・ Wall wall 18 ・ ・ ・ Silver-filled activated carbon cassette 40 ・ ・ ・ Band 19 ・ ・ ・ Orifice 41 ・ ・ ・ Spout 20 ・ ・ ・ Pump 42 ・ ・ ・ Cap 21 ・ ・ ・ Pump side water pipe 43 ... spill 22 ... substantially L-shaped conduit 44 ... Marriott valve 23 ... partition insulating wall 45 ... protrusion portion 23a ... partition insulating wall casing 46 ... draining unit

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Akio Kouda 800, Tomita, Ohira-machi, Shimotsuga-gun, Tochigi Prefecture Living Equipment Division, Hitachi, Ltd. Bunch Co. Ltd. Hitachi Ltd. Living Equipment Division

Claims (10)

[Claims] 1. An ice tray connected to a driving device is provided in an ice making chamber, and water in a water tank installed in a room different from the ice making chamber is pumped above the water tank via a water conduit. In an ice making device of a refrigerator configured to supply a fixed amount of water into an installed ice making tray, a part of a water conduit is formed by a partitioning hot wall case that separates the ice making chamber from the another chamber. An ice-making device for a refrigerator characterized by. 2. A water conduit installed facing one recess of an ice tray having a plurality of recesses is a substantially L-shaped water conduit having a water supply part and a water conduit, and this water conduit is used as a chimney guide part. The ice-making device for a refrigerator according to claim 1, wherein the ice-making device is attached to a cover main body having an accommodating portion for accommodating the water-conducting portion, and the water-conducting pipe is fixed by attaching the cover main body. 3. A water conduit formed on a partitioning hot wall case by fixing a metal substantially L-shaped water conduit having a heater and a heat insulating material to the cover body, and then projecting the water conduit portion of the water conduit projecting from the cover body. The ice-making device for a refrigerator according to claim 1, wherein the ice-making device is inserted and connected inside. 4. A substantially L-shaped water conduit pipe is fixed to a cover body with a fixing band.
The ice-making device for a refrigerator according to the item. 5. A stopper for regulating the insertion depth of the substantially L-shaped water conduit when inserting and connecting the water supply portion of the water conduit projecting from the cover body into the water conduit formed in the partitioning heat wall case. The ice making device for a refrigerator according to claim 1, wherein the ice-making device is provided in the case-side water conduit section. 6. A water guide pipe formed in the partition hot wall case is projected into a lower chamber of the partition hot wall case, and a connecting pipe connected to the pump side is connected to that portion. The ice-making device for a refrigerator according to claim 1. 7. A rising part for preventing water from entering the water conduit part is provided on the upper surface of the water conduit formed in the partition hot wall case on the side of the ice making chamber. Refrigerator ice making device. 8. The ice making device for a refrigerator according to claim 1, wherein the diameter of the spout of the water tank is about 80 mm. 9. A cassette containing silver-containing activated carbon is detachably provided in a water receiving tray, and the silver containing activated carbon is immersed in water poured into the water receiving tray, and water supplied by a pump is supplied. The ice-making device for a refrigerator according to claim 1, further comprising: a guide for a flowing water passage which is provided so as to pass through the cassette portion and near the cassette. 10. A cassette is installed on the auxiliary chamber side of a water tray having an auxiliary chamber and a measuring chamber, and the cassette containing silver-containing activated carbon is positioned in the flow of water flowing from the auxiliary chamber into the measuring chamber. The ice-making device for a refrigerator according to claim 1, wherein the ice-making device is a refrigerator.