JPS58179784A - Ice cube machine for refrigerator - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an ice cube maker for a refrigerator, comprising a tray for entering the freezer compartment of a betel storage and a device for filling the tray with water to freeze it.

Persimmon-shaped ice cube ice makers are known for use in household refrigeration. These ice cube makers include a tray that is filled with a volume of water under the control of a valve, such as a flow F valve. The tray is cooled to change the water to ice, for example by blowing a stream of very chilled air onto the tray, then rotated and twisted to dispense the ice cubes; Collect in a container.

This paddle device is known, for example, from French Patent No. 119818
It is described in No. 1s.

The 5its device described is particularly complex and expensive. It is therefore only used in refrigerators intended for a limited range of users.The object of the invention is to provide an extremely simple and versatile ice cube making device.

According to the invention, the device for filling the tray with water has a closable outlet communicating with the prechamber;
a removable water container connected to the metering chamber through an outlet with a cross-sectional area smaller than the cross-sectional area of the outlet with which said prechamber can be closed; An ice cube maker for a limited number of refrigerators is provided.

According to an embodiment of the invention, the outlet is located in a downwardly directed skirt projecting into the reserve chamber, the lower end of the skirt determining the water level in the reserve chamber in which the outlet is closed. do.

According to a further embodiment of the invention, the outlet can be closed by a valve that is closed when the water container is removed. In a further *general example, the bottom of the prechamber is in the form of a tray and forms a cover for the metering chamber in which the outlet is arranged.

The tray-shaped bottom part is provided with a protrusion, and
The projection cooperates with a valve handle for automatically opening the outlet when the water container is in the operating position.

According to another aspect of the invention, the water container includes a water supply for discharging cold water.

The invention will become more apparent from the detailed description given by way of example below with reference to the accompanying drawings.

In the drawings, the reference numeral l indicates a domestic refrigerator with a conventional old-fashioned structure, with a lower cooling chamber 3 and this cooling @
1, and an upper freezing chamber 8 designed and manufactured to be maintained at a certain temperature substantially lower than 1.

The upper freezer compartment δ includes a shelf fixed in a known manner to this and supporting a conventional plastic tray b, which tray 5 has a set of truncated pyramidal compartments 6. In this case, the chambers 6 are partially offset so that, for example, even if only one chamber is supplied with water, all the chambers are filled. Just as water overflows the edges and runs over,
It is divided into sections according to the helicopter parts.

The water distribution device, i.e. the water distributor, located above the tray has an inclined pyramid-like shape with outlets 8 at the four corners and its apex just below the outlet of the discharge rod or tube 10. The device consists of a generally square-shaped member having a central portion formed by a baffle plate 9. These mountains j#i9 lead equally in the direction of the water outlet. The discharge tube 10 is attached, for example by pushing, to a resilient plastic sleeve 11, which
1 is provided with a seven flange 1z with a groove around its periphery, and is fixed by a seven flange 12 into a hole in a metal sheet 18 covering the freezer compartment δ. This discharge pipe 10, which has the characteristic of collapsing, is embedded in the thermal insulation 14 of the refrigerator and is capable of solidifying stationary water, thus corresponding to the chamber of the refrigeration system which blocks this discharge pipe 10. if has no horizontal part. This tube 10 between 10 and 10 terminates at its other end in a sleeve 14 which is provided with a peripherally grooved 7 flange 15, by means of which a metal sheet defining a cooling illumination. This tube 10 is placed over the contour of the hole in the wall 16.
is connected.

This sleeve 14 is connected by a flexible tube 17 to the discharge side of a centrifugal pump 18 (driven by an integrated electric motor), which is rigidly supported by a bracket 19 together with the tray member sO. This member 20 is
Bottom ml! i! is applied to the suction part of the bong 718 by the brass pipe 11. 1
11@ and a metal frame fixed to the cooling 11s wall! 8
Above this member zO is supported by seven flanges s8.

The tray member sO forms the bottom of the m-chamber (or spare 11) H and is closed at the top by a cover s4 in the shape of a tray. The bottom of the front chamber B comprises a protrusion aS and an outlet 26 of predetermined dimensions. This cover! 4 and the tray member 20 define a metering chamber. Above this cover 14 there is arranged a container 8, for example made of plastic, which ensures a good seal along the area where the removable cover s8 engages this container 8. It is sealed by a removable cover B8 which is attached by pressing. This passenger unit 27 has a metal frame 9 fixed to the wall of the cooling room 2.
It is easy to fight on the top and the protrusion on the frame body s9 got-￥
The position is energized by inserting it into the corresponding recess 81 in the bottom of the container 2. This centering, that is, reaching the center, occurs when the protrusion z6 on the cover s4 removes the cap 88 of the bottom valve 84 against the return springs 8 and 2.
(i.e. expulsion).

More particularly, this bottom valve 84 has a handle 8!1 and a bottom end δ6.
and a cap 88 with seven lunges. This pattern 8
5 is axially guided in a hollow member 87 at the bottom of the container 2, and a return spring 82 is installed in the hollow member 87.
is placed and acts on the protruding portion 88 of the slit 8z.

A number of outlets 89 are provided around this hollow member 87, the total cross-sectional area of which is many times larger than the cross-sectional area of the outlet snow 6.

Ill to fill passenger ship 27! i1 Position 3 shown in figure
When the passenger container 27 is removed from the tank, the bottom valve 84 closes the outlet 89 to prevent water from leaking from the container 117.

To this end, the tII return spring 88 is pressed downwardly and the 7 langes 86 close at the rim or lip 40 of the am of the container 3, thus forcing the outlet 89 into the container 2.
7.

Around the mound of the discharge port 89, there is a downwardly continuous circular skirt 4m formed integrally with the container 8te. The cover 24 and the tray member 30 cover the measuring chamber M, and the front chamber (i.e. spare 1) B with the cover s4 on top is
to be accomplished.

The operation is as follows. Tray 6, on which ice cubes are to be made, is empty of water, and closed container z7 contains a certain amount of water (level D), more than is needed to fill tray b. Let's assume that the measuring chamber is filled with water to the maximum extent permitted by its contour, and that the water level 0 of 1,111 mB branches out at the lower end of the 4 m skirt.

The total amount of water entering the metering barrel and prechamber B is the amount necessary to properly fill the tray 6. Once the water reaches level O, more water flows into the preliminary chamber B through the outlet 89.
It becomes impossible to flow through. This is because the compensating air cannot rise through the outlet 89 further through the volume of water in order to reach above the level D of this volume. Under these conditions,
When the user wishes to dispense the ice cubes, he presses a pushbutton (not shown but located at a suitable location), thus discharging pump 1.
Start 8. This push button can be pressed to activate an electrical or electronic timing circuit to keep the time pump 18 running, or the user can press it to keep the tray 6 full. became 1
It can be continued to be pressed by the user until he notices (either visually or by different noises produced by the pump) that the pump no longer sucks water. During this water filling, the measuring chamber gradually becomes empty due to the large capacity of the gimp. When the water level C falls below the lower end of the skirt 42, compensating air is discharged through the outlet 89.
water can flow into the prechamber B through the outlet 89 of the volume 87. However, since the flow rate through the outlet 26 is much lower than the flow rate through the outlet δ9, water stops flowing through the outlet [189] as level C becomes re-established in the prechamber.

These ascending and descending passages of air and water obviously follow automatically.

When tray 5 is filled with a certain amount of water required, pump 18 is turned off. Due to the principle of the communicating container,
Some of the water in the discharge pipe 10 returns to the metering chamber, both because the pump allows backflow during shutdown. This prevents ice from forming at the top of the discharge tube 10 near the freezer compartment 8. Moreover, due to the alternation of the water level in reserve chamber B rising and falling, the metering chamber is gradually filled with water again up to the initial level, and at this initial level the level of reserve 11B is stabilized at level O. All water stops passing through. The device is thus ready for further use.

Once the ice cubes are formed, the tray can be removed manually and the ice cubes can be removed in the normal manner. Additionally, this WaSte, for example, water supply II! It can be conveniently used to drain cold water into a scoop y which is directed downwardly by a valve y or similar valve member. This invention relates to the ice making of ice cubes for refrigerators having a device for filling the ice cubes with ice cubes.

According to the invention, the device for filling said tray with water has a closable outlet communicating with the prechamber, and said prechamber has a cross-sectional area larger than the cross-sectional area of the closable outlet. It comprises a removable water container connected to the metering chamber through a small cross-sectional outlet and a pump for draining water from the metering chamber to the tray (see FIG. 1).

[Brief explanation of the drawing]

Figure 1 is a longitudinal section of a domestic refrigerator incorporating an ice cube maker, shown schematically and also in cross-section, and Figure 2 shows the water distribution for distributing water to the trays below. It is a bottom view of a container. 1...Household cold #II s...Lower cooling chamber 8
... Upper freezer compartment 4 ... Shelf 5 ... Conventional plastic tray 6 ... Pyramid truncated pyramid-shaped small room 7 ... Water distributor 8 ... Outlet 9 ... Baffle board (#i oblique turning device) 10...Emission line or tube
11...Elastic plastic sleeve
1z...7 lunges with grooves around the periphery
18...Metal sheet 14...Sleeve
145L... Refrigerator thermal insulator 15... 7 langes with grooves around the periphery 16... Metal sheet horizontal 17... Flexible tube 18.
...Connection pump 19...Bracket sO...
・Tray member 21...Bottom joint pipe (bottom union) 82...7 flange 8δ...metal frame 24...Cover 115...Protrusion (protrusion) z6...Outlet 3...・Yong @
Ill...Removable cover
29...Metal frame 80...Protrusion 81
...Corresponding depression δ1...Return spring 8
8... Cap 84,... Bottom valve δ5.
...Handle (shaft) 86...Lower end (7 lunges) 87...
Hollow member δ8...Protruding portion 89...Ejection port 40...Rim, that is, lip 41...Inner space 4
2. Skirt...Measuring room B...
I (PIII room 0...level D...level
X... Water tap y... Cup below. Patent applicant: N.B.Philips Fluiran Pen 7 Appliken

Claims (1)

[Claims] L. An ice cube ice maker for a refrigerator comprising a tray to be placed in the freezer compartment of the refrigerator and a device for filling the tray with freezing water! The device for filling a tray with water according to I. comprises a closable outlet 1 which is connected to a pre-chamber, said pre-chamber having a cross section smaller than the area of the closable outlet. Through the outlet into the weighing chamber (
An ice cube ice maker for a refrigerator, comprising a removable water container connected to the measuring chamber and a pump for discharging water from the measuring chamber to the tray through a discharge pipe. 1. A discharge port is located in a downwardly directed skirt projecting into the auxiliary chamber, and the end of said skirt is located at the discharge port [J
Ice cube ice maker according to claim 1, characterized in that the ice cube maker determines the water level in the pre-chamber which is closed. & Patent d # Claims No. 1 characterized in that the outlet can be closed by a valve that closes when the water container is removed.
The ice cube ice maker according to either paragraph or paragraph S. Table 1. The bottom of the preliminary chamber is in the shape of a tray and forms a cup for the quantity 'n with an outlet arranged therein, and the bottom in the shape of said bowl has a protrusion, the protrusion Ice cube ice maker according to claim 8, characterized in that the ice cube maker cooperates with a valve handle for automatically opening the discharge when the water container is in the bursting position. Ice cube ice machine 0 according to any one of claims 1 to 4, characterized in that the water container has a spout with a water tap for discharging cold water.