US 11,982,479 B2
Digital refrigeration controller with integrated module driven electronic expansion valve
Samuel Lesseinger, Novo Hamburgo/RS (BR); Christian Eduardo Saul, Novo Hamburgo/RS (BR); Edson Rodrigo Da Silva Paz, Canoas/RS (BR); and Maicon Giesch, Cachoeirinha/RS (BR)
Appl. No. 18/270,272
Filed by Ivanir Antônio Gobbi, Canoas/RS (BR); and Flávio Paulo Perguer, Poro Alegre/RS (BR)
PCT Filed Apr. 22, 2021, PCT No. PCT/BR2021/050168
§ 371(c)(1), (2) Date Jun. 29, 2023,
PCT Pub. No. WO2022/155715, PCT Pub. Date Jul. 28, 2022.
Claims priority of application No. BR 102021001093-2 (BR), filed on Jan. 21, 2021.
Prior Publication US 2024/0044563 A1, Feb. 8, 2024
Int. Cl. F25B 49/02 (2006.01); F25B 41/34 (2021.01); G05B 19/042 (2006.01); G05B 19/048 (2006.01)
CPC F25B 49/02 (2013.01) [F25B 41/34 (2021.01); G05B 19/042 (2013.01); G05B 19/048 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A digital refrigeration controller with an integrated module driven Electronic Expansion Valve, said digital refrigeration controller (100) being provided with a non-volatile electronic memory and characterized in that it is provided with an onboard System (200) comprising the following elements:
a) a Processing Unit (206) for managing the digital refrigeration controller (100) through the execution of pre-scheduled and stored instructions in the non-volatile electronic memory, said Processing Unit being connected to the following elements:
a1) a Serial Communication Interface (202) for interfacing and a remote operation control;
a2) a Sensor Signal Conditioning System (203) for conditioning sensor signals into a standard compatible with an electrical standard of said Processing Unit (206);
a3) a Charge Control System (204) to keep a power charge level in a Backup Power Supply Charging System (208);
a4) a Human-Machine Interface (205);
a5) a Power Supply Detection and Selection System (207) to enable the digital refrigeration controller (100) to continue operating even in case of a power outage;
a6) a Backup Power Supply Charging System (208) to to store energy for the closure of the electronic valve in case of the power outage;
a7) a Real Time Clock (209) for scheduling defrosting events and entering an economy mode; and
a8) a Step Motor Electronic Expansion Valve Drive System (210);
b) a Power Supply (201), said Power Supply (201) being connected to the Charge Control System (204), the Power Supply Detection and Selection System (207) and the Sensor Signal Conditioning System (203);
c) a Backup Power Supply (211) to keep the digital refrigeration controller (100) working until a complete closure of the electronic valve, connected to the Power Supply Detection and Selection System (207) and to the Backup Power Supply Charging System (208); and
d) a Current Monitor (212) for feedback into said digital refrigeration controller (100) of an operating Status of said electronic expansion valve.