Global Patent Index - EP 3182039 A4

EP 3182039 A4 20180502 - MULTI-LINE APPARATUS SYSTEM REFRIGERANT FLOW CONTROL METHOD AND DEVICE

Title (en)

MULTI-LINE APPARATUS SYSTEM REFRIGERANT FLOW CONTROL METHOD AND DEVICE

Title (de)

VERFAHREN UND VORRICHTUNG ZUR STEUERUNG DES KÄLTEMITTELFLUSSES EINES EINRICHTUNGSSYSTEMS MIT MEHREREN LEITUNGEN

Title (fr)

PROCÉDÉ ET DISPOSITIF DE CONTRÔLE DE DÉBIT DE FRIGORIGÈNE DE SYSTÈME D'APPAREIL MULTI-LIGNE

Publication

EP 3182039 A4 20180502 (EN)

Application

EP 16820687 A 20160426

Priority

  • CN 201510395506 A 20150706
  • CN 2016080246 W 20160426

Abstract (en)

[origin: EP3182039A1] A method and a device for controlling refrigerant distribution of a multi-split air-conditioning system are disclosed in the present invention. The method includes: when the multi-split air-conditioning system enters a main heating mode, controlling the second electronic expansion valve to close; controlling an electronic expansion valve corresponding to a cooling indoor unit to perform an opening adjustment; when an opening of the electronic expansion valve corresponding to the cooling indoor unit reaches a maximum opening, calculating a target opening of the second electronic expansion valve according to a total opening and the maximum opening of the electronic expansion valve corresponding to the cooling indoor unit; and controlling the second electronic expansion valve according to the target opening. With the method for controlling refrigerant distribution of the multi-split air-conditioning system in embodiments of the present disclosure, the cooling effect of the cooling indoor unit is ensured and the liquid strike on the compressor may be avoided under the main heating mode, and the compressor is ensured to operate safely and reliably.

IPC 8 full level

F25B 13/00 (2006.01); F25B 41/34 (2021.01)

CPC (source: EP US)

F25B 13/00 (2013.01 - EP US); F25B 30/02 (2013.01 - US); F25B 41/39 (2021.01 - EP US); F25B 49/02 (2013.01 - EP US); F25B 2313/0231 (2013.01 - EP US); F25B 2313/0233 (2013.01 - EP US); F25B 2400/23 (2013.01 - EP US); F25B 2600/2509 (2013.01 - EP US); F25B 2600/2513 (2013.01 - EP US)

Citation (search report)

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

Designated extension state (EPC)

BA ME

DOCDB simple family (publication)

EP 3182039 A1 20170621; EP 3182039 A4 20180502; EP 3182039 B1 20200930; CN 105115199 A 20151202; CN 105115199 B 20171031; US 2017198956 A1 20170713; WO 2017005036 A1 20170112

DOCDB simple family (application)

EP 16820687 A 20160426; CN 201510395506 A 20150706; CN 2016080246 W 20160426; US 201615326184 A 20160426