Systems and methods for reducing air losses in refrigerated cases
US-10203145-B2 · Feb 12, 2019 · US
US10016071B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10016071-B2 |
| Application number | US-201615168901-A |
| Country | US |
| Kind code | B2 |
| Filing date | May 31, 2016 |
| Priority date | May 31, 2016 |
| Publication date | Jul 10, 2018 |
| Grant date | Jul 10, 2018 |
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A product merchandising system includes a housing having a top surface, two side surfaces spaced apart from one another defining a width-direction of the housing, and a front surface and rear surface spaced apart from one another defining a depth-direction of the housing. The system includes a product support system configured to support rows of products along a width of the housing, each row disposed at a position along the depth of the housing, the first row being towards the front surface of the housing. A cooling system includes a cooling system including a cooling heat exchanger generating an airflow, a deflector configured to direct the airflow through the cooling heat exchanger and towards a bottom of the housing, and a nozzle below the deflector and configured to direct the airflow towards a bottom of the housing through an outlet aperture and between a first two rows of products.
Opening claim text (preview).
What is claimed is: 1. A product merchandising system, comprising: a housing having a top surface, two side surfaces spaced apart from one another defining a width-direction of the housing, and a front surface and rear surface spaced apart from one another defining a depth-direction of the housing; a product support system configured to support rows of products along a width of the housing, each row disposed at a position along the depth of the housing, the first row being towards the front surface of the housing; a cooling system including a cooling heat exchanger, and a blower, the blower disposed forward from the cooling heat exchanger and configured to pull air through the cooling heat exchanger generating an airflow, the cooling heat exchanger disposed within the housing and proximate the top surface of the housing; a deflector configured to direct the airflow through the cooling heat exchanger and towards a bottom of the housing; and a nozzle below the deflector and configured to direct the airflow towards a bottom of the housing through an outlet aperture positioned along a plane between a first two rows of products. 2. The system of claim 1 , the outlet aperture further comprising: a tapered surface configured to jet the airflow through the first two rows of products. 3. The system of claim 2 , the tapered surface extending along the width of the housing. 4. The system of claim 1 , the outlet aperture further comprising: at least two tapered surfaces configured to jet the airflow through the first two rows of products. 5. The system of claim 1 , the nozzle further comprising: a planar surface extending parallel to the top surface of the housing and disposed adjacent to the deflector and side surfaces of the housing such that the airflow is directed through a region as an air duct. 6. The system of claim 1 , wherein the blower is a cross-flow blower. 7. The system of claim 1 , the product support system further comprising: wire shelves positioned along a height direction of the housing configured to support multiple arrays of products in parallel planes, the wire shelves being configured to allow the airflow through the first two rows of products. 8. The system of claim 7 , wherein the wire shelves are positioned such that they are inclined towards the front of the housing. 9. The system of claim 1 , wherein a cool-down time of the first two rows of products is reduced by at least about 60% when the cooling system is activated. 10. The system of claim 1 , the cooling system further comprising: a compressor and condenser, wherein the cooling heat exchanger is an evaporator. 11. The system of claim 1 , the cooling heat exchanger comprising one of an evaporator, a thermoelectric cooler, a cold plate, or a cooling water heat exchanger. 12. The system of claim 1 , further comprising a temperature sensor positioned proximate a lower portion of the support system and configured to monitor temperature of the airflow such that the first two rows of products is monitored. 13. The system of claim 12 , the temperature sensor comprising one of a thermistor, thermocouple, bimetallic strip, or infrared sensor. 14. The system of claim 1 , further comprising: a return airflow region disposed proximate the rear surface of the housing such that the return airflow flows upward towards the cooling heat exchanger along the rear surface of the housing. 15. The system of claim 1 , the nozzle further comprising: a planar surface prior to the outlet extending parallel to the top surface of the housing, the planar surface including a return airflow inlet aperture proximate the rear surface of the housing and rearward of the cooling heat exchanger. 16. The system of claim 1 , wherein the system maintains the first and second rows of products at about 32 degrees Fahrenheit during operation. 17. The system of claim 16 , wherein the system maintains the third and subsequent rows of products at a higher temperature than about 32 degrees Fahrenheit during operation. 18. The system of claim 16 , wherein the system maintains the rearmost row of product at about 55 degrees Fahrenheit during operation. 19. A method of cooling merchandise, comprising: positioning products on a product support system disposed within a housing and configured to support rows of products along a width of the housing, each row disposed at a position along the depth of the housing, the first row being towards the front surface of the housing; flowing air through a cooling heat exchanger generating an airflow, the cooling heat exchanger disposed within the housing and proximate the top surface of the housing; deflecting airflow through the cooling heat exchanger and towards a bottom of the housing; and generating an air curtain using a nozzle below the deflector and configured to direct the airflow towards a bottom of the housing through an outlet aperture positioned along a plane between a first two rows of products such that a temperature gradient is provided between the first two rows of products and a rearmost row of products. 20. A product merchandising assembly, comprising: a housing having a top surface, two side surfaces spaced apart from one another defining a width-direction of the housing, and a front surface and rear surface spaced apart from one another defining a depth-direction of the housing; a product support system configured to support rows of products along a width of the housing on wire shelves positioned along a height direction of the housing such that multiple arrays of products may be supported in parallel planes, the wire shelves being configured to allow airflow therethrough, each row disposed at a position along the depth of the housing, the first row being towards the front surface of the housing; a cooling system including a compressor, condenser, evaporator, and a blower, the blower disposed forward from the evaporator and configured to pull air through the evaporator generating an airflow, the evaporator disposed within the housing and proximate the top surface of the housing; a deflector configured to direct the airflow through the evaporator and towards a bottom of the housing; and a nozzle positioned below the deflector and configured to direct the airflow towards a bottom of the housing and including: an outlet aperture, the outlet aperture positioned along a plane between the first two rows of products and extending along the width of the housing and including a tapered surface configured to jet the airflow through the first two rows of products; a planar surface extending parallel to the top surface of the housing and coacting with the deflector and side surfaces of the housing such that the airflow is directed through a region as an air duct, the planar surface further including a return airflow inlet aperture proximate the rear surface of the housing and rearward of the cooling heat exchanger; and a temperature sensor positioned proximate the lower portion of the support system and configured to monitor temperature of the airflow such that the first two rows of products are controlled within a predetermined temperature range that is lower than the rows rearward of the second row.
Cooled shelves · CPC title
Doors, covers (A47F3/0434 takes precedence) · CPC title
through the top · CPC title
the fans not of the axial type · CPC title
by forced circulation · CPC title
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