KR0178879B1 - Refrigerator with automatic ice-making machine - Google Patents

Abstract

A refrigerator with an automatic ice maker, which does not smell from ice produced in an ice maker, and is excellent in hygiene, inexpensive, and convenient to use. An ice making unit disposed in the freezing compartment at the bottom of the water supply unit, and a water supply means for guiding water from the water supply bottle to the ice making unit, and the water supply unit has a recess for the drip tray disposed below the bottle support wall in the refrigerating compartment, and the water support is provided in the bottle support wall. An open hole is provided for communicating the inside of the concave portion to the refrigerating chamber. When the water supply bottle is mounted at a predetermined position on the bottle support wall, the open hole of the bottle support wall is covered by the cap of the water supply bottle. Communication with the inside of the drip tray is limited, and the odor in the fridge is reduced to the circumference of the drip tray. And it has a structure that is prevented from being attached to the bottom wall.

This configuration prevents food debris from falling into the recess for the drip tray and adheres to the circumferential wall or the bottom wall of the recess for the drip tray. In addition, the effect that the bottle cover is unnecessary and advantageous also in view of the manufacturing cost of the refrigerator.

Description

Refrigerator with automatic ice maker

1 is a longitudinal sectional view of a main part of a refrigerator equipped with an automatic ice maker according to an embodiment of the present invention.

2 is an enlarged cross-sectional view of a portion A in FIG. 1.

3 is a front view of a main portion of the bottle support wall and the recess for the drip tray.

4 is a view similar to that of FIG. 2, but for the sake of simplicity, omitting the internal structure of the water supply port of the water supply bottle, and showing the state when the on / off valve of the water supply bottle is opened.

5 is a fragmentary enlarged cross-sectional view showing another embodiment of the recess for the drip tray.

FIG. 6 is an explanatory view showing the positional relationship between the water pipe and the ice making plate shown in FIGS.

7 is a longitudinal sectional view of an essential part of a refrigerator equipped with the above-mentioned conventional automatic ice maker.

8 is an explanatory view showing the positional relationship between the water supply conduit and the ice making ground shown in FIG.

The present invention relates to a refrigerator with an automatic ice maker, and more particularly, to a water supply structure for an automatic ice maker of a refrigerator arranged in the order of a refrigerator compartment and a freezer compartment from the top.

A refrigerator equipped with an automatic ice maker generally commercially available will be described with reference to FIG.

In FIG. 7, reference numeral 31 denotes a refrigerator main body, and the refrigerator main body 31 has a freezing chamber 32 at the upper portion of the inner space and a refrigerating chamber 33 at the lower portion thereof. 34 is an ice making unit installed in the freezing chamber 32, and the ice making unit 34 removes the ice made in the machine unit 36 and the ice making plate 35 to automatically drop the ice made in the ice making plate 35. It consists of an ice bank 37 etc. which store.

Reference numeral 38 denotes a water supply unit arranged in the refrigerating chamber 33. The water supply section 38, for example, sends a water bottle (39), a metering dish 40, and water in the metering dish 40 into which the water of about 2 liters enters (the induction dish 35). Water supply pump 41, cover 42, and the like. Reference numeral 43 denotes a water supply conduit for sending the water in the metering plate 40 to the ice making plate 35.

A refrigerator equipped with an automatic ice maker of this kind having an ice making unit 34 and a water supply unit 38 is a known one that automatically repeats a series of operations of water supply-ice-icing-water supply.

Moreover, as a conventional example of this kind, the thing of Unexamined-Japanese-Patent No. 4-313665 is mentioned, for example.

In the refrigerator with the conventional automatic ice maker having such a configuration, there are the following problems.

[1] In order to supply a certain amount of water to an ice making dish, it is necessary to keep the water in a fixed quantity dish. Since the metering plate is always in contact with the air in the refrigerating chamber, the water will contact the air in the refrigerating chamber while there is water in the dish, and the water will absorb the odor components in the air. For this reason, when ice was made, there was a problem that it smelled a little.

[2] When water is stored for a long time on a fixed plate (when ice is not consumed in ice storage and ice-making and ice-making operations are not performed for a long time), dust and various germs in the refrigerating chamber are kept in the water. There is a risk that mold may enter the back.

[3] In a so-called top-mounted refrigerator in which a refrigerating compartment is located below the freezing compartment, a pump is used for supplying water to the ice making dish because of an ice tray in the freezer compartment and a water bottle in the refrigerating compartment. For this reason, there exists a problem that the manufacturing cost of a refrigerator will rise.

[4] In relation to the above (1) and (2), it was necessary to provide a cover 41 on the front surface of the water supply bottle to prevent dust, various bacteria, and the like from entering the metering dish. For this reason, when the water bottle is attached or detached, the water bottle cannot be attached or detached unless the cover is operated. Therefore, the convenience of use of the ice maker is deteriorated, and the manufacturing cost increases as much as half of the cover 41. .

In addition, refrigerators in which refrigerating chambers and freezing chambers are arranged in order from the top are recently commercialized. For example, Japanese Patent Laid-Open Publication No. Hei 3-221769 discloses an automatic ice maker that does not use a pump for water supply to an ice making dish. have. In the automatic ice making device described in the above publication, water is sent from the water tank of the water supply device provided in the refrigerating chamber to an ice making plate provided in the freezer compartment via an outlet having a water reservoir, a water reservoir and a valve, and a water supply pipe.

The water supply system does not use a pump for water supply to the ice making plate, but the water in the water reservoir of the low water container is always in contact with the air in the refrigerating chamber, and this structure certainly ensures sufficient odor transfer and water sterilization. It wasn't. In addition, a cover is required for the water supply device and a door is required for the ice making chamber, respectively, and these components not only increase the manufacturing cost of the entire refrigerator, but also worsen the convenience of using the automatic ice maker.

The object of the present invention is to solve the above-mentioned problems of the prior art, and does not transfer odors in the refrigerating chamber to the water supply device, and therefore, does not smell from the ice produced in the ice tray and is also excellent in hygiene. It is a low cost and easy to use refrigerator provided with an automatic ice maker.

In order to achieve the above object, the present invention includes a refrigerating compartment, a freezing compartment disposed below the refrigerating compartment, and an automatic ice maker, and the automatic ice maker is arranged to be freely detached from the refrigerating compartment, and has a water supply port having an on / off valve attached thereto. A water supply bottle having a water supply unit, an ice making unit disposed in the freezing compartment, a solenoid for controlling the opening and closing of the opening / closing valve, and a frequency for guiding water from the water supply bottle to the ice making unit when the opening / closing valve is opened. A refrigerator having means, wherein the refrigerating chamber is provided with a bottle support wall for supporting the water supply bottle, and the water supply means includes a recess for the drip tray disposed below the bottle support wall. An opening for communicating the inside of the recess for the communication with the refrigerating chamber is provided. When the water supply port of the bottle faces downwardly and faces the opening, detachment is freely mounted on the bottle support wall, and when the water supply bottle is mounted in a predetermined position on the bottle support wall, the bottle is placed in a predetermined posture. The opening of the support wall is roughly covered by the water supply bottle to provide a refrigerator with an automatic ice maker, characterized in that communication between the refrigerating compartment and the inside of the drip tray is limited.

As described above, in the refrigerator equipped with the automatic ice maker of the present invention, when the water supply bottle is mounted at a predetermined position on the bottle support wall, the opening of the bottle support wall is roughly covered by the water supply bottle, and the refrigerating compartment and the water repelling means. Since communication with the inside of the drip tray recess is limited, the effect of preventing food waste from falling into the drip tray recess can be obtained, and in addition to this effect, the odor in the fridge can be reduced. It is prevented from adhering to the circumferential wall or the bottom wall of the concave portion, whereby the odor of the concave portion for the drip tray is not corrected in the water while the water passes through the concave portion for the drip tray and reaches the ice making section. The remarkable effect of making odorless ice in the ice making unit is obtained. This configuration is also advantageous in view of the manufacturing cost of the refrigerator because the bottle cover attached to the front surface of the water supply bottle is unnecessary in the conventional automatic ice maker.

In a preferred embodiment of the present invention, the water supply portion of the water supply bottle includes a cap provided with an on-off valve, and the bottle support wall includes an auxiliary member disposed in the bottle support wall body and the recess for the drip tray, and the auxiliary member It forms in the shape which forms the opening of a bottle support wall in cooperation with a bottle support wall main body, and the edge part of this opening is made to contact the peripheral part of the bottom wall of a cap.

The above and other objects, structures, and effects of the present invention will become more apparent from the following detailed description made with reference to the accompanying drawings.

First, referring to FIGS. 1 to 3, the refrigerator compartment 2 and the freezer compartment 3 are arranged in the main body 1 of the refrigerator in order from the top, and the refrigerator compartment 2 and the freezer compartment 3 are separated from each other. The openings in the front face are opened and closed by the doors 4 and 5, respectively. The freezer compartment 3 is formed by a drawer container 6 attached to the door 5.

This refrigerator is equipped with an automatic ice maker. This automatic ice maker has the water supply part 7 provided in the bottom part of the refrigerating chamber 2, and the ice-making part 25 provided in the freezing chamber 3. As shown in FIG. The water supply section 7 has a water supply bottle 8 made of synthetic resin. The ice making unit 25 is composed of an ice making plate 24 made of a synthetic resin, a mechanical unit 26 for operating the ice making plate 24, an ice maker 27, and the like. The ice making unit 25 has a structure that is generally known except for a part thereof.

Below, the structure of the water supply part 7 is demonstrated in detail.

The water supply bottle 8 extends downward from the bottle body 8-1, the neck 8a protruding downward from the bottle body 8-1, and extends radially outwardly. It has a screw part 8b. The neck 8a and the screw 8b form a water supply port. A synthetic resin cap 16 provided with an on-off valve 13 operated by a solenoid 12 to be described later is screwed into the threaded portion 8b to form a circular water reservoir 14 therein. A ring-shaped water purifying means 20 is disposed in the interior space of the neck 8a above the water storage chamber 14.

The water purifying means 20 is a lid member 17 made of a synthetic resin which partitions between the inner space of the neck 8a and the inner space of the bottle body 8-1, the lid member and the reservoir 14 A partition member 15 made of a synthetic resin disposed between the lid member 17 and the lid member 17, the purified water element 20a housed in the purified water chamber 19, and the partition member. It has a sealing member 22 which consists of a packing which seals between 15 and the inner peripheral surface of the said neck part 8a. The partition member 15 has a leg portion 18 that abuts the inner surface of the bottom wall of the cap 16. The purified element 20a contains activated carbon for purifying bacteria. In the lid member 17 and the partition member 15, water passage holes 17a and 15a through which water passes are formed, respectively, and water from the bottle body portion 8-1 is formed in the lid member ( After passing through the water passage hole 17a of the 17 and the inside of the water purification element 20a, the water flows into the water storage chamber 14 through the water passage hole 15a of the diaphragm member 15, and opens and closes the valve ( It is stored in the reservoir 14 until 13) is opened.

In the illustrated embodiment, for the sake of simplicity, the water passages 17a and 15a are shown to be aligned with each other in the vertical direction, but these two water passages 17a and 15a are purified water elements 20a. It is apparent to those skilled in the art that it is preferable to be disposed at positions distant from each other in the circumferential direction. This is because the water penetrating into the water purification element 20a from the water passage hole 17a flows a long distance in the water purification element 20a until it reaches the water passage hole 15a.

Since the inside diameter of the neck portion 8a of the water supply opening of the water supply bottle 8 is smaller than the inside diameter of the screw portion 8b, the water purifying means 20 is inserted into the screw portion 8b of the water supply opening, and then the cap 16 is screwed. When screwed to the thread of (8b) and rotated, the cap 16 moves toward the neck 8a by screwing. In accordance with this movement, the partition member 15 having the leg portion 18 which abuts against the bottom wall of the cap 16 also moves toward the neck portion 8a. (22) adheres to the inner circumference of the neck (8a) in a somewhat compressed state, so that not only the sealing member (15) and the neck (8a) are well sealed, but the sealing is capped at the water inlet of the bottle (8). Note that there is an advantage that it can be easily achieved by the operation of attaching (16).

In the refrigerator compartment 2, the bottle support wall 9 made of synthetic resin which supports the water supply bottle 8 is provided. The bottle support wall 9 includes a bottle support wall body 9a and an auxiliary member 9b made of synthetic resin. The bottle support wall body 9a has a high shelf portion 9a-1 for supporting the bottle body portion 8-1 and a low shelf portion 9a-2 for supporting the water supply port portion of the bottle. The recess 9c for the drip tray constituting the water receptacle is formed integrally with the bottle support wall 9 at the lower portion of 9a-2. The auxiliary member 9b has a shape in which the opening 9d is formed in cooperation with the lower shelf portion 9a-2.

The water supply bottle 8 is detachably mounted on the bottle support wall 9 such that the water supply port portion of the bottle faces the opening 9d downward.

When the water supply bottle is mounted on the bottle support wall 9 in a predetermined posture, the opening 9d is in contact with the circumferential edge of the bottom wall of the cap 16 of the water supply port of the water supply bottle 8 at its edge portion. It is. Therefore, when the water supply bottle 8 is mounted at a predetermined position on the bottle support wall 9 in a predetermined posture, the opening 9d of the bottle support wall is covered by the water supply bottle 8 so that the refrigerator compartment ( 2) and communication inside the recess 9c for the drip tray are restricted.

Falling holes 16a are formed in the bottom wall of the cap 16. The opening / closing valve 13 has a rubber valve member 13a that opens and closes the downfall hole 16a by contacting the bottom wall of the cap 16 at a distance. The solenoid 12 is attached to the bottom wall of the recess 9c for the drip tray. The solenoid 12 has a valve actuating rod 12a which extends through the opening 9c-1 formed in the bottom wall of the recess 9c for the drip tray. The operating rod 12a is adapted to operate the valve member 13a.

The partition member 15 in the water supply port portion of the water supply bottle 8 has a water and air replacement in the bottle body portion 8-1, that is, the outflow of water from the bottle body to the water storage chamber 14 and the water storage chamber ( In Fig. 14, a vent 21 for facilitating the inflow of air into the bottle body 8-1 is formed. The vent 21 penetrates through the water purification element 20a and the lid member 17 and protrudes into the bottle body portion 8-1. Accordingly, as shown in FIG. 2, the vent 21 communicates with the reservoir 14 and the inner space of the bottle body 8-1, and the water in the reservoir 14 opens / closes the valve 13. When it flows through the recess 9c for the drip tray, air flows through the vent 21 into the inner space of the bottle body 8-1, and accordingly, the bottle body 8 At -1), water passes through the water passage hole 17a of the lid member 17, passes through the water purifying means 20, and flows into the water storage chamber 14.

The valve member 13a has a protrusion 13-1 entering and exiting the vent 21. The protruding portion 13-1 is an upper half of the valve rod extending through and fixed to the rubber valve member 13a, and the lower half 13-2 of the valve rod is formed on the bottom wall of the cap 16. The center portion slides freely and extends, and its lower end is on the same axis as the valve actuating rod 12a. The opening 9c-1 of the recess 9c for the drip tray is closed by a cover 12b made of an elastic material, and the valve actuating rod 12a opens the valve member 13a via the cover 12b. It is supposed to operate. The return spring which consists of a coil spring is provided in the outer periphery of the lower half part 13-2 of a valve rod.

When the projection 13-1 of the valve member 13a rises together with the valve member 13a, the projection 13-1 moves into the vent 21 to provide a surface tension of water in the vent 21. By destroying the film of water generated by the air flow through the vent 21 is improved. The vent 21 also functions as a guide member for guiding a movement when the valve member 13a and the protrusion 13-1 are raised.

The bottom wall of the said recess 9c for drip trays is inclined, and the fall opening 9c-2 is formed in the lowest part of this inclined bottom wall. A water lowering wall 9e for lowering the force of the water flow reaching the downfall opening 9c-2 along the inclined bottom wall is disposed in the recess for the drip tray near the downfall opening 9c-2. have. In this embodiment, the flushing wall 9e is formed integrally with the auxiliary member 9b, and a notch 9f of a predetermined size for passing water is formed at the lower end of the flushing wall 9e. It is.

A water pipe 11 is connected to the outlet of the drop opening 9c-2, and a heating means 10 is disposed at the outer circumference of the water pipe as shown in FIG.

As shown in FIG. 6, the lower end 11a of the water pipe 11 is located directly above the ice making plate 24 of the ice making plate 24 generated by the action of the machine part 26 of the ice making unit 25. It is located outside the trajectory of rotation.

Next, the operation of the automatic ice maker described above with reference to FIGS. 2, 4 and 6 will be described.

When an electric force is applied to the solenoid 12, the valve actuating rod 12a lifts the valve member 13a from the bottom wall of the recess 9c for the drip tray, whereby a predetermined amount in the reservoir 14 Water flows out through the downhole 16a and flows into the recess 9c for the drip tray.

Here, the case where 100 cc of water flows out into the recess 9c for drip trays when the solenoid 12 is operated is demonstrated.

The solenoid 12 is controlled by automatic control means, for example, a control board, whose operation time is not shown. As an example, when the solenoid 12 receives the water supply instruction to the ice making plate 24 from the automatic control means, the solenoid 12 pushes up the valve rod of the on-off valve 13 against its return spring and moves the valve 13a for 6 seconds to 10 seconds. The on-off valve 13 is opened as shown in FIG. 4 by being separated from the bottom wall of the cap 16 for a second. 80 to 90 cc of water stored in the reservoir 14 within this valve opening time and 10 to 20 cc of water flowing out of the bottle body portion 8-1 through the water purification means 20 and the reservoir 14. About 100 cc of water, which is a total amount of water, flows out through the drip hole 16a of the cap 16 and flows out into the recess 9c for the drip tray.

The water flowing out through the drip hole 16a flows toward the drip opening 9c-2 along the inclined bottom wall of the drip recess 9c. In this case, since the water flushing wall 9e is provided upstream of the downfall opening 9c-2, the water washing is broken, and the water flow is narrowed by the notch 9f provided at the lower end of the water flushing wall 9e, and then the downfall opening (9c-2) and the water pipe (11) flow down to the ice making plate (24) shown in FIG.

Water contained in the ice tray 24 freezes due to the low temperature in the freezer compartment 3. The confirmation that the water is frozen is opened in accordance with a predetermined elapsed time (for example, 2 hours) from the time when the solenoid 12 is operated to open the shutoff valve 13. After the elapse of this predetermined time, the machine unit 26 of the ice making unit 25 receives the instruction from the automatic control means and rotates the ice making plate 24 as shown in FIG. 6 to make the ice produced in the ice making plate. The ice is dropped into the ice storage 27 at the same time as falling from the top. At the end of dropping the ice, the mechanical part 26 returns the ice making plate 24 to its original horizontal state shown by the solid line in FIG. Thereafter, the solenoid 12 is instructed again to open the on-off valve 13 to supply a predetermined amount of water to the ice making plate 24 as described above.

The above operation is automatically repeated, and a predetermined amount of ice is accumulated in the ice storage 27.

In the embodiment shown in FIG. 5, the water washing lower wall 9e 'is formed integrally with the bottle supporting wall body 9a, and the small hole 9f' of a predetermined size allows water to pass through the lower end of the water washing lower wall. ) Is formed

In the embodiment of the present invention, the reason why water washing and water quantity (flow rate per unit time) is limited by using the water washing lower wall 9e or 9e 'will be described below.

In the conventional automatic ice maker of this type, as shown in FIG. 8, the tip of the water supply conduit 43 is opened (opened) in the vicinity of the ice making plate 35, so that even if there is a force in the water coming from the opening, the ice making plate Water poured into (35) does not protrude from the ice tray.

However, in the embodiment of the present invention, as described above, the lower end 11a of the water pipe 11 is located outside the rotation trajectory of the ice making plate 24 directly above the ice making plate 24. That is, the distance from the lower end 11a of the water pipe 11 to the ice-making plate 24 is several times larger than before. Therefore, when water is to be poured into the ice-making dish 24 from the lower end 11a of the water pipe 11, there exists a possibility that water may splash out from the ice-making dish 24, when the force of water flow is strong or the quantity is large. For this reason, in the above-described embodiment of the present invention, the water washing lower wall 9e or 9e 'is employed.

In addition to the above-described action, the flushing wall 9e or 9e 'also serves to prevent cold air from the freezing chamber 3 from penetrating into the refrigerating chamber 2 through the water pipe 11.

In the following, the embodiments described above and illustrated in the drawings have the following effects in addition to the effects of the inventions indicated in the "Overview of the Invention" section of the present specification.

[1] The water purified by the water purification means 20 in the water supply port portion of the water supply bottle 8 is temporarily stored in the water storage chamber 14 closed by the cap 16 in the water supply port portion. In the apparatus, the metering chamber disposed independently of the refrigerating chamber can be abolished.

[2] Since the sealing member 22 is pressed against the inner surface of the neck portion 8b of the water supply port part of the water supply port 8 by the screwing action of the cap 16, some dimensional error in manufacturing the bottle 8 is caused. Even if it occurs, since the sealing of the neck 8b and the partition member 15 is completely achieved, the amount of water supplied to the ice making plate 24 is always set to a predetermined amount.

[3] Since the purified water means 20 containing activated carbon is disposed in the water supply port portion of the water supply bottle 8, the water supplied from the bottle 8 to the ice tray 24 through the water storage chamber 14 is purified water means. Purified by 20, sanitary and delicious ice can be obtained.

[4] Since the protrusion 13-1, which consists of the upper half of the valve rod of the on-off valve 13, moves together with the valve member 13a to enter and exit the vent 21, the inside of the vent 21 is brought into the surface tension of water, and the like. Can be prevented. In addition, the vent 21 acts to guide the movement of the valve rod, thereby making the opening and closing movement of the valve member 13a accurate and certain.

Claims (11)

Automatic ice makers 7 and 25 having a refrigerating compartment 2, a freezing compartment 3 disposed below the refrigerating compartment, a water supply unit 7 provided in the refrigerating compartment 2, and an ice making unit 15 provided in the freezing compartment 3. In the refrigerator 1 provided with), the water supply part 7 is a water supply bottle 8 freely detachable from the refrigerating compartment 2 and is supplied with water from the bottle body part 8-1. The bottle 16 is provided in the cap 16 and the water supply port 8a, 8b having the openings 8a and 8b, a cap 16 engaged with the water supply port and opening / closing a valve 13 for opening and closing the downfall hole 16a. The water supply bottle 8 which has the water storage chamber 14 which stores water in 8-1), the opening 9d which is located under the fall hole 16a, and is closed by the cap 16 contacting, and water In the drip tray 9c in communication with the bottom of the drip tray 9c having the inclined bottom wall leading to the bottom thereof, and the bottom of the drip tray 9c. It is located below the water pipe 11 and the drip recess 9c which sends the water to the ice-making unit 25, and is isolated from the water in the drip recess 9c by the elastic cover 12b. And an opening and closing device (12) for opening and closing the opening and closing valve (13) by a command from a control device via an elastic cover (12b). 2. The refrigerator according to claim 1, wherein the recess 9c for the drip tray is formed by a bottle support wall 9 in which the water supply bottle 8 is freely disposed in the refrigerating chamber 2. . The refrigerator according to claim 1, wherein the water storage chamber (14) is provided with water purifying means (20) for purifying water flowing from the bottle body (8-1) into the water storage chamber (14). 4. The water purifying means (20) according to claim 3, wherein the water purifying means (20) comprises a lid member (17), a lid member (17), and the lid member (17) which form a partition between an interior space of the reservoir (14) and the bottle body (8-1). The partition member 15 disposed between the water chambers 14 to form the water purification chamber 19 between the lid members 17, the water purification element 20a disposed in the water purification chamber 19, and the lid member ( 17) and an inner space of the bottle body 8-1 provided in the sealing member 22 and the lid member 17 and the partition member 15 for sealing between the inner walls of the water supply ports 8a and 8b. And a water passage hole (17a, 15a) for communicating the water purification chamber (19) and the water storage chamber (14). The refrigerator according to claim 4, wherein the purified water element (20a) contains activated carbon for purifying bacteria. The water supply hole 17a provided in the lid member 17 and the water supply hole 15a provided in the diaphragm member 15 are disposed at positions apart from each other in the circumferential direction of the water purification element 20a. Refrigerator characterized in that. 5. The corneal spacer 15 of claim 4, protrudes into the bottle body 8-1 through the water purification element 20a and the lid member 17. A refrigerator characterized in that a vent (21) for communicating the inside of the bottle body (8-1) is formed. 8. The refrigerator according to claim 7, wherein said open / close valve (13) has a projection (13-1) entering and exiting into said vent (21). The refrigerator according to claim 1, wherein a water washing lowering wall (9d, 9e, 9e ') is provided on the inclined bottom wall of the recess (9c). 5. The partitioning member (15) is provided with a leg portion (18) extending downward, and the leg portion (18) is closed when the cap (16) closes the water inlet portions (8a, 8b). It is pushed against the inner surface of the bottom wall of the cap 16, whereby the sealing member 22 seals between the lid member 17 and the inner wall of the water supply port 8a, 8b. Refrigerator. The refrigerator according to claim 1, wherein a heating means (10) is arranged around the water pipe (11).