An evaporator plate made of a metal plate having a plurality of shaped dimples thereon, the dimples each being defined by a pair of opposing pyramid shaped end faces and a pair of trapezoidal shaped left and right side faces adjoining the pair of pyramid shaped end faces. An evaporator assembly comp
An evaporator plate made of a metal plate having a plurality of shaped dimples thereon, the dimples each being defined by a pair of opposing pyramid shaped end faces and a pair of trapezoidal shaped left and right side faces adjoining the pair of pyramid shaped end faces. An evaporator assembly comprising first and second evaporator plates and tubing arranged in a serpentine path sandwiched therebetween, each plate including a plurality of parallel fins extending from a first surface, a pair of end flanges parallel to the fins, and a plurality of the shaped dimples. A tool for making the plate and a method of making the assembly are disclosed.
대표청구항▼
1. An evaporator plate assembly comprising: a plate having opposing front and rear surfaces, the plate defining a plurality of dimples, each of the plurality of dimples projecting outwardly from the rear surface and disposed on the front surface in an array comprising a plurality of rows and a plura
1. An evaporator plate assembly comprising: a plate having opposing front and rear surfaces, the plate defining a plurality of dimples, each of the plurality of dimples projecting outwardly from the rear surface and disposed on the front surface in an array comprising a plurality of rows and a plurality of columns, each of the plurality of rows extending in a horizontal direction and each of the plurality of columns extending in a vertical direction, the plate comprising a plurality of fins projecting outwardly from the front surface of the plate, each fin extending in the vertical direction and disposed between adjacent columns of dimples; the plurality of rows of dimples comprising a first row of dimples, a second row of dimples disposed immediately adjacent to the first row of dimples in the vertical direction, a third row of dimples disposed immediately adjacent the second row of dimples in the vertical direction, and a fourth row of dimples disposed immediately adjacent to the third row of dimples in the vertical direction; anda serpentine tubing coil comprising straight portions of tubing extending horizontally and connected serially at their ends by connecting portions, the straight portions of the tubing coil comprising a first straight portion and a second straight portion connected to the first straight portion and being immediately adjacent to the first straight portion in the vertical direction, the second straight portion connected to the first straight portion by a first connecting portion of the connecting portions, the tubing coil being in contact with the rear surface of the plate, the first straight portion of the tubing coil disposed between the first row of dimples and the second row of dimples, and the second straight portion disposed between the third row of dimples and the fourth row of dimples. 2. The evaporator plate assembly of claim 1, wherein no tubing of the tubing coil passes between the second row of the plurality of dimples and the third row of the plurality of dimples. 3. The evaporator plate assembly of claim 1, wherein the plate is a first plate, the plurality of dimples is a first plurality of dimples, the plurality of fins is a first plurality of fins, and the evaporator plate assembly further includes: a second plate having opposing front and rear surfaces, the second plate defining a second plurality of dimples, each of the second plurality of dimples projecting outwardly from the rear of the second plate and disposed on the front surface of the second plate in an array comprising a plurality of rows and a plurality of columns, each of the plurality of rows extending in a horizontal direction and each of the plurality of columns extending in a vertical direction, the second plate comprising a second plurality of fins projecting outwardly from the front surface of the second plate, each fin extending in the vertical direction and disposed between adjacent columns of dimples; the plurality of rows of dimples of the second plate comprising a first row of dimples of the second plate, a second row of dimples of the second plate disposed immediately adjacent to the first row of dimples of the second plate in the vertical direction, a third row of dimples of the second plate disposed immediately adjacent the second row of dimples of the second plate in the vertical direction, and a fourth row of dimples of the second plate disposed immediately adjacent to the third row of dimples of the second plate in the vertical direction;wherein the tubing coil is in contact with the rear surface of the second plate, the first straight portion of the tubing coil disposed between the first row of dimples and the second row of dimples of the second plate, and the second straight portion disposed between the third row of dimples and the fourth row of dimples of the second plate. 4. The evaporator plate assembly of claim 3, wherein the tubing of the tubing coil has an oval shape in cross section. 5. The evaporator plate assembly of claim 4, wherein the oval shape includes first and second flat sections that are in contact with the rear surface of the first plate and the rear surface of the second plate, respectively. 6. The evaporator plate assembly of claim 1, wherein the plurality of rows of dimples further comprises a fifth row of dimples disposed immediately adjacent to the fourth row of dimples in the vertical direction, a sixth row of dimples disposed immediately adjacent to the fifth row of dimples in the vertical direction, a seventh row of dimples disposed immediately adjacent to the sixth row of dimples in the vertical direction, and an eight row of dimples disposed immediately adjacent to the seventh row of dimples in the vertical direction and wherein the tubing coil further comprises a third straight portion connected to the second straight portion and being immediately adjacent to the second straight portion in the vertical direction and a fourth straight portion connected to the third straight portion and being immediately adjacent to the third straight portion in the vertical direction, the third straight portion of the tubing coil passing between the fifth row of the plurality of dimples and the sixth row of the plurality of dimples, and the fourth straight portion of the tubing coil passing between the seventh row of the plurality of dimples and the eighth row of the plurality of dimples. 7. The evaporator plate assembly of claim 6, wherein no tubing of the tubing coil passes between the second row of the plurality of dimples and the third row of the plurality of dimples, between the fourth row of the plurality of dimples and the fifth row of the plurality of dimples, and between the sixth row of the plurality of dimples and the seventh row of the plurality of dimples. 8. The evaporator plate assembly of claim 6, wherein the plate is a first plate, the plurality of dimples is a first plurality of dimples, the plurality of fins is a first plurality of fins, and the evaporator plate assembly further includes: a second plate having opposing front and rear surfaces, the second plate defining a second plurality of dimples, each of the second plurality of dimples projecting outwardly from the rear of the second plate and disposed on the front surface of the second plate in an array comprising a plurality of rows and a plurality of columns, each of the plurality of rows of the second plate extending in a horizontal direction and each of the plurality of columns of the second plate extending in a vertical direction, the second plate comprising a second plurality of fins projecting outwardly from the front surface of the second plate, each fin extending in the vertical direction and disposed between adjacent columns of dimples of the second plate; the plurality of rows of dimples of the second plate comprising a first row of dimples of the second plate, a second row of dimples of the second plate disposed immediately adjacent to the first row of dimples of the second plate in the vertical direction, a third row of dimples of the second plate disposed immediately adjacent the second row of dimples of the second plate in the vertical direction, a fourth row of dimples of the second plate disposed immediately adjacent to the third row of dimples of the second plate in the vertical direction, a fifth row of dimples disposed immediately adjacent to the fourth row of dimples in the vertical direction, a sixth row of dimples disposed immediately adjacent to the fifth row of dimples in the vertical direction, a seventh row of dimples disposed immediately adjacent to the sixth row of dimples in the vertical direction, and an eight row of dimples disposed immediately adjacent to the seventh row of dimples in the vertical direction;wherein the tubing coil is in contact with the rear surface of the second plate, the first straight portion of the tubing coil disposed between the first row of dimples and the second row of dimples of the second plate, and the second straight portion disposed between the third row of dimples and the fourth row of dimples of the second plate; the tubing coil further comprising a third straight portion connected to the second straight portion and being immediately adjacent to the second straight portion in the vertical direction and a fourth straight portion connected to the third straight portion and being immediately adjacent to the third straight portion in the vertical direction, the third straight portion of the tubing coil passing between the fifth row of the plurality of dimples and the sixth row of the plurality of dimples, and the fourth straight portion of the tubing coil passing between the seventh row of the plurality of dimples and the eighth row of the plurality of dimples. 9. The evaporator plate assembly of claim 6, wherein the tubing of the tubing coil defines an oval shape in cross section. 10. The evaporator plate assembly of claim 9, wherein the oval shape includes first and second flat sections that are in contact with the rear surface of the first plate and the rear surface of the second plate, respectively. 11. The evaporator plate assembly of claim 6, wherein the plate defines a first end face, a second end face, a first side face, and a second side face forming each of the plurality of dimples. 12. The evaporator plate assembly of claim 11, wherein the plate further defines a planar valley forming each of the plurality of dimples. 13. The evaporator plate assembly of claim 11, wherein a height of each of the first end face and the second end face is less than a width of each of the first side face and the second side face. 14. The evaporator plate assembly of claim 8, wherein the second plate defines a first end face, a second end face, a first side face, and a second side face forming each of the second plurality of dimples. 15. The evaporator plate assembly of claim 14, wherein the second plate further defines a planar valley forming each of the second plurality of dimples. 16. The evaporator plate assembly of claim 14, wherein a height of each of the first end face and the second end face of each of the plurality of dimples is less than a width of each of the first side face and the second side face. 17. The evaporator plate assembly of claim 1, wherein the evaporator plate assembly is configured to form a plurality of ice cubes on the front surface of the first plate, each of the plurality of ice cubes having a front surface and a back surface, the front surface being crescent shaped and the back surface defining a pair of projections. 18. The evaporator plate assembly of claim 3, wherein the evaporator plate assembly is configured to form a first plurality of ice cubes on the front surface of the first plate, each of the plurality of ice cubes having a front surface and a back surface, the front surface being crescent shaped and the back surface defining a pair of projections; anda second plurality of ice cubes on the front surface of the second plate, each of the second plurality of ice cubes having a front surface and a back surface, the front surface of each of the second plurality of ice cubes being crescent shaped and the back surface of each of the second plurality of ice cubes defining a pair of projections. 19. The evaporator plate assembly of claim 6, wherein the evaporator plate assembly is configured to form a plurality of ice cubes on the front surface of the first plate, each of the plurality of ice cubes having a front surface and a back surface, the front surface being crescent shaped and the back surface defining a pair of projections. 20. The evaporator plate assembly of claim 8, wherein the evaporator plate assembly is configured to form a first plurality of ice cubes on the front surface of the first plate, each of the plurality of ice cubes having a front surface and a back surface, the front surface being crescent shaped and the back surface defining a pair of projections; anda second plurality of ice cubes on the front surface of the second plate, each of the second plurality of ice cubes having a front surface and a back surface, the front surface of each of the second plurality of ice cubes being crescent shaped and the back surface of each of the second plurality of ice cubes defining a pair of projections.
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