A refrigerator comprising an additional tube

Abstract

The present invention relates to a refrigerator (1) comprising a condenser; an evaporator and a compressor (3) having an upper casing (4) and a lower casing (5), where the refrigerant cycle is performed; an outlet tube (7) which is provided on the lower casing (5), which is used for connecting the compressor (3) to the condenser and which provides the delivery of the compressed refrigerant to the condenser; a return tube (6) which enables the refrigerant completing its refrigerant cycle to return to the compressor (3) via the evaporator; an evaporator tube (2) which is connected to the return tube (6).

Description

[0001] A REFRIGERATOR COMPRISING AN ADDITIONAL TUBE

[0002] The present invention relates to a refrigerator comprising an additional tube wherein the refrigerant is charged to the compressor used in the refrigerator refrigeration cycle.

[0003] In compressors, the refrigerant gas is charged from the lower casing. The charged gas is compressed by the motor and piston and sent to the condenser via an outlet tube. In the refrigerator refrigeration cycle, the refrigerant gas completes its cycle through the evaporator and returns to the compressor at a lower pressure through the evaporator tube and the return tube. Thus, the refrigeration cycle continues. In the state of the art, there are three tubes on the compressor, namely return, outlet and service tubes. The refrigerant gas circulating in the compressor is charged to the compressor body from the lower casing via a service tube. The return pipe is the component where the gas returns to the casing in the refrigeration cycle. Said three tubes are joined, by centering, to the holes bored on the compressor lower casing. Centering and boring holes on the tubes and the casing increases refrigerator production costs and production cycle times. Moreover, processes such as centering the tubes to the casing, welding an additional tube to the compressor service tube during the production of refrigerators where compressors are used, also cause the risk of refrigerant leakage, which results in cooling problems. After the refrigerant is pumped from the service tube, the tube end is cut, welded, blunted and closed. However, adding a third tube to the lower casing increases both production time and cost.

[0004] In the state of the art Japanese Patent Document No. JP2014009647, a tube structure is disclosed, which enables the refrigerant to be charged to the compressor.

[0005] The aim of the present invention is the realization of a refrigerator comprising an additional tube for charging the refrigerant to the compressor, wherein ease of production and cost advantage are provided.

[0006] The refrigerator of the present invention comprises a condenser; an evaporator; a compressor having a lower casing, an upper casing disposed onto the lower casing and only a return tube and an outlet tube provided on the lower casing; and an evaporator tube which provides the connection between the return tube of the compressor and the evaporator. The compressor outlet tube is the tube through which the refrigerant gas compressed by the motor and the piston is send from the compressor to the condenser. The return tube is the tube through which the gas, which completes its refrigerant cycle in the refrigerator, returns to the compressor from the evaporator.

[0007] The refrigerator of the present invention comprises an additional tube which is provided on the evaporator tube. The refrigerant is charged into the compressor through the additional tube, and then the additional tube is cut, welded and closed. Thus, without opening a third tube hole on the lower casing of the compressor and using a service tube, the refrigerant is charged. Consequently, by eliminating refrigerant leaks, the refrigerator is enabled to perform the cooling process more efficiently.

[0008] In an embodiment of the present invention, the diameters of the additional tube and the evaporator tube are equal to each other.

[0009] In another embodiment of the present invention, the diameters of the additional tube and the evaporator tube can be different from each other.

[0010] In an embodiment of the present invention, the additional tube is parallel to and integrated with the evaporator tube.

[0011] By means of the present invention, a refrigerator is realized, comprising a compressor wherein the refrigerant leaks are prevented and the refrigerant gas is easily charged.

[0012] The model embodiments related to the refrigerator realized in order to attain the aim of the present invention are shown in the attached figures, where:

[0013] Figure 1 - is the perspective view of the refrigerator of the present invention.

[0014] Figure 2 - is the front view of a compressor comprising an external service tube at the lower casing in state of the art refrigerators.

[0015] Figure 3 - is the view of the compressor connected to the evaporator via the evaporator tube in the refrigerator of the present invention. Figure 4 - is another view of the compressor connected to the evaporator via the evaporator tube in the refrigerator of the present invention.

[0016] The elements illustrated in the figures are numbered as follows:

[0017] 1. Refrigerator

[0018] 2. Evaporator tube

[0019] 3. Compressor

[0020] 4. Upper casing

[0021] 5. Lower casing

[0022] 6. Return tube

[0023] 7. Outlet tube

[0024] 8. Additional tube

[0025] The refrigerator (1) comprises a condenser; an evaporator and a compressor (3) having an upper casing (4) and a lower casing (5), where the refrigerant cycle is performed; an outlet tube (7) which is provided on the lower casing (5), which is used for connecting the compressor (3) to the condenser and which provides the delivery of the compressed refrigerant to the condenser; a return tube (6) which enables the refrigerant completing its refrigerant cycle to return to the compressor (3) via the evaporator; an evaporator tube (2) which is connected to the return tube (6).

[0026] The refrigerator (1) of the present invention comprises an additional tube (8) which is provided on the evaporator tube (2) and which enables the refrigerant gas to be charged to the compressor (3).

[0027] In the refrigerator (1) of the present invention, the refrigerant gas is charged to the compressor (3), which is one of the components of the refrigerant cycle, through the additional tube (8) which is provided on the evaporator tube (2). Thus, the need for using an additional service tube on the lower casing (5) of the compressor (3) is eliminated. The refrigerator (1) of the present invention comprises a compressor (3) having only the return tube (6) and the outlet tube (7) on the lower casing (5) thereof.

[0028] The refrigerator (1) of the present invention comprises the additional tube (8) the end of which is blunted and closed after the refrigerant is charged. Thus, while the refrigerator (1) is operated, the refrigerant gas is enabled to be circulated in closed circuit during the refrigerant cycle.

[0029] In an embodiment of the present invention, the refrigerator (1) comprises the additional tube (8) which is integrated with the evaporator tube (2). Thus, ease of assembly is provided, and refrigerant gas leaks between the evaporator tube (2) and the additional tube (8) are prevented.

[0030] In an embodiment of the present invention, the refrigerator (1) comprises the additional tube (8) which is provided on the evaporator tube (2) so as to be parallel to the evaporator tube (2). Thus, the charging of the refrigerant gas is facilitated.

[0031] In an embodiment of the present invention, the refrigerator (1) comprises the additional tube (8) with a diameter equal to the diameter of the evaporator tube (2).

[0032] By means of the present invention, a refrigerator (1) is realized, with decreased production time and improved production cost, wherein the refrigerant gas leaks are prevented.

Claims

CLAIMS1. A refrigerator (1) comprising a condenser; an evaporator and a compressor (3) having an upper casing (4) and a lower casing (5), where the refrigerant cycle is performed; an outlet tube (7) which is provided on the lower casing (5), which is used for connecting the compressor (3) to the condenser and which provides the delivery of the compressed refrigerant to the condenser; a return tube (6) which enables the refrigerant completing its refrigerant cycle to return to the compressor (3) via the evaporator; an evaporator tube (2) which is connected to the return tube (6), characterized by an additional tube (8) which is provided on the evaporator tube (2) and which enables the refrigerant gas to be charged to the compressor (3).

2. A refrigerator (1) as in Claim 1, characterized by a compressor (3) having only the return tube (6) and the outlet tube (7) on the lower casing (5) thereof.

3. A refrigerator (1) as in Claim 1 or 2, characterized by the additional tube (8) the end of which is blunted and closed after the refrigerant is charged.

4. A refrigerator (1) as in Claim 3, characterized by the additional tube (8) which is integrated with the evaporator tube (2).

5. A refrigerator (1) as in any one of the Claims 1 to 4, characterized by the additional tube (8) which is provided on the evaporator tube (2) so as to be parallel to the evaporator tube (2).

6. A refrigerator (1) as in any one of the Claims 1 to 5, characterized by the additional tube (8) with a diameter equal to the diameter of the evaporator tube (2).5

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