Title:
Condenser device for refrigerators
United States Patent 2105751


Abstract:
6 Claim -y invention relates to condensers for dora tic refrigerators in particular, and has as its c ject the provision of an air cooled conder unit, which is of extensive size, suitable for with a domestic refrigerator without' use of fa or water for cooling,nd yet can be packed with a compass...



Inventors:
Money, Roland H.
Application Number:
US8229936A
Publication Date:
01/18/1938
Filing Date:
05/28/1936
Assignee:
CROSLEY RADIO CORP
Primary Class:
Other Classes:
62/298, 62/507, 165/86, 165/144
International Classes:
F25B39/04; F25D23/00
View Patent Images:



Description:

6 Claim -y invention relates to condensers for dora tic refrigerators in particular, and has as its c ject the provision of an air cooled conder unit, which is of extensive size, suitable for with a domestic refrigerator without' use of fa or water for cooling,nd yet can be packed with a compass which does not require any substanti increase in packing expense.

10 mestic system in a position hanging at the bac of the cabinet, has called for such a large co denser that it has proven quite a problem 4 proVide a shipping package whch Permits shipping it safely, without adding substantiall Is to the size and weight of the shipping package It is of apparent advantage to make a foldin type of condenser which can be compactly ar ranged for shipment, and yet which can be readi ly and easily unfolded and arranged in Place fo uMore specifically it is my object to provide condenser which can be bent at the central part for example, so that it can be folded under th( compressor unit in shipping. In the drawing I have illustrated my preferred form of structure which is simple, and which permits of easy unfolding and of easy securing the condenser assembly in bent shape or str'ightened out as In o80 I refer to the appended claims for a statement of the invention Inherent in the structure illustrated and described.

In the drawing:, Fg. 1 is a side elevation of a refrigerator with 85 parts broken away and certain parts In section.

Fig. 2 is an enlarged elevation of my improved condenser as seen from the right side of ig. 1.

Fit. 3 is an enlarged fragmentary side elevaQion of the condenser showing how I may provide a bendable joint therein.

Fig. 4 is a section taken along line 4-4 of Fig. -3.

Fig. 5 is a fragmentary side elevation of the condenser when in its bent position.

FIg. 68 is a fragmentary side elevation of the 48 upper left hand side member.

Fig. 7 is a fragmentary side elevation of the lower left hand side hnember, and Fig. 8 is a plan view of the tubing support used at. the bendable portion of my condenser.

I have showh a refrigerator cabinet i, and at the rear thereof a condenser unit marked 2.

There are pipes 3 and 4connecting up the condenser--with the rest of the refrigeration unit.

The pipe 3 extends to the compressor 5 from the , top of the condenser, and the pipe 4 extends up s. (C. 257-30) es- from the bottom of the condenser to the top ib- where it passes inwardly near the pipe 3 and is ser connected to the evaporator 6 of the unit.

Ise The mode of shipping a refrigerator is to ship ns the cabinet in one package and ship the refrigerain tion unit, fully charged and ready to operate in al another package. The cabinet, as per present practice has an upper compartment in it, which - is open to the back of the refrigerator~ and the ck refrigeration unit is set into place by inserting it i- into this compartment from the back, so that to the evaporator projects down through an insu)f lated orifice, into the refrigeration compartment ]y of the cabinet.

e. The problem for' which my invention is a solug tion, is how to arrange the condenser of the new - long type, with the. refrigeration unit, so that it - can be shipped in a compact form, already conr nected up with the other parts of the unit.

The preferred mode of accomplishing this is Sillustrated in the drawing. The particular condenser is made up of copper tubing 6, which is Sarranged In a series of parallel loops with radiatSing. fins 1, passing down through the assembly.

As most simply made, the fins have holes In them, the copper tubes are bent into a hair pin arrangement and then thrust through the fins, whereupon connectors 8 are welded into place to join the hair pin like arrangements and form a continuous sinuous tube, for the condensation ac- 8 tion. As shown the fins for the upper half of the condenser are separate from those of the lower half. * The outside strips are thicker than the fins and preferably made of angle iron. They too have holes in them for passage of the tubing, and are assembled with the tubing when the fins are added. I Provide in the present embodiment two upp)er outside strIps 9 and two lower outside strips 10. Also, preferably, I provide for-a different tubing├Żarrangement at the point where the upper and lower outside strips are joined, for a Purpose which will be noted. Here I interrupt the hair pin like arrangement and instead provide for two straight tubing sections II, II, heavier union fittings 12 at their ends, and an S-shaped piece of copper tubing I1, which is welded into each union.

The support for the ends of the straight portion of tubing section I1, are two metal plates 5o 14. Each plate has a hole fitted with a grommet 15 for sustaining the tube section 13, and an elongated slot 16, for a purpose to be noted.

The arrangement at the right hand side is the same as the arrangement at the left hand side but merely set upside down, so that no rights lu and lefts are required. The upper strip 9 on b the one side is the same as the lower strip 10 on the other side, the strip 10 being reversed in s direction. st I will accordingly describe the left hand ar- s rangement since the right hand arrangement is the same thing reversed. c The lower end of the left hand strip 9 is el formed with a slot 17, terminating in a round portion 18, into which the grommet of the tube 0 supporting piece is thrust. It also has a slot ] 19, open to the back of the condenser arrange- t ment. The upper end of the left hand lower piece s 10 has a slot 20, facing upwardly and terminat- 1 ing in a rounded portion 21 for reception of the e grommet on the supporting piece. It has also d a closed slot 22, which is spaced from the portion 21, but which is an extension in the same f direction of the slot 20. t There is a bolt 23 which passes through the supporting piece 14, and through the slots in s the outside strips 9 and 10. When the two strips t are in line this bolt passes through the elongated slot 16 in the piece 14, and slots II and 22 in the pieces 9 and 10. In this position shown in Fig. 3, the condenser is extended in a single plane, and held fast in this plane by the bolt.

By grasping the two sections of the condenser and bending the lower half to a right angle with the upper half, which is permitted by the bending of the S shaped pipe, and the bending of the connector pipe 4, the bolt and supporting piece and outside -strips can -be brought to a fixed right angle relation as shown in Fig. 5.

In this relation the bolt being first loosened, and the condenser bent to a right angle, the closed slot 22 of the lower outside strip 10, can be brought in line with the slot 19, in the upper strip 9. The bolt can then be moved along the slot in the supporting piece 14, until it passes through both the slots 22 and 19, and can then be fastened. In doing so the two strips 9 and 10 pivot on the grommet. When fastened the bolt holds the outside strips at a right angle.

When the condenser is so bent, it can be packed in such a way as to lie under the compressor unit, and jhus require a packaging case very little larger than if the condenser were not packed. If the condenser had to be packed in a single extended relation, it would require a packing case as long as the condenser, and considerable in the way of supports for the remainSder of the unit.

When received at the point for, assembly, the operator will loosen the two bolts, slip them out of engaging position with the side pieces, bend the condenser back into straight relation, and then slide the bolts to position to lock the side pieces in the extended relation.

The only difference as to the right hand side of the arrangement is that the tube supporting piece is reversed in position, and the bolt slides down instead of up in making the final straight line adjustment.

Other ways of arranging for a simple joint, lockable in two positions will suggest themselves, Sand I do not limit my invention to the par0 ticular form shown. One essential item is that the condenser when shipped is in fully connected position with the rest of the refrigeration unit, which unit is charged with refrigerant, Therefore it is undesirable to have any-unions or revoble joints in the tubing, since all joints should tightly sealed.

The precise construction of the two condenser ections is not a necessary item of my invention, ie important feature being that there are two 5' ections connected by a bendable tube section.

Having thus described my invention, what I aim as new and desire to secure by Letters Patnt is: 1. A condenser for refrigeration units formed f a plurality of sections, each comprising tubuar elements, x bendable tubular element between he sections, and side members for the sections, aid side members having connections having ocking means for holding the side members in xtended and angular relation with each other, as esired.

2. In combination, a sectional condenser ormed of tubular elements, having a bendable ubular element between sections, and side suports for said tubular elements for each section, aid side support having connections between hem pivoting about the said bendable tubular element, and securable in positions with the side supports in extended relation, and in positions with the side supports at an angle with relation to each other.

3. In combination, a sectional condenser formed of tubular elements, having a bendable tubular element between sections, and side sup-30 ports for said tubular elements for each section, said side support having connections between them pivoting about the said bendable tubular element, and securable in positions with the side supports in extended relation, and in positions with the side supports at an angle with relation to each other, the said connections comprising slotted plates through which the bendable tubular element passes, bolts for said slots, a slotted end on one of the side supports of each pair, an internal slot on the other side support of each pair, and a slot at an angle to the slotted end of the first noted supports, whereby the bolts passing through the slotted plates, may pass selectively either through the internal slot and slotted end, or between the internal slot and the slot at an angle hereto.

4. A condenser for attachment to and shipment with a refrigeration unit assembly unit assembly in fully charged condition, comprising a pair of like sections formed of tubular passages, a bendable tube connecting the sections, and framing for the sections having pivotal joints between the framing sections, said pivotal joints having locking means for holding them in a plurality of pivotal adjustments.

5. A condenser for attachment to and shipment with a refrigeration unit assembly in fully charged condition, comprising a pair of like sections forming tubular passages, a bendable tube connecting the sections, and framing for the sections formed of side pieces, and links for joining them together in % plurality of locked positions.

6. A condenser for attachment to and shipmeAt with a refrigeration unit assembly in fully charged condition, comprising a pair of like sections forming tubular passages, a bendable tube connecting the sections, and frasning for the sections formed of side pieces, and links for joining them together in a plurality of locked positions, said framing and links being formed alike for the two sections but reversed in position at the two sides thereof.

ROLAND H. MONEY.