E2z Co., Ltd.

Republic of Korea

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Date
2026 April 3
2026 (YTD) 6
2025 2
2024 2
IPC Class
G01R 19/165 - Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values 6
G01R 19/00 - Arrangements for measuring currents or voltages or for indicating presence or sign thereof 5
G01R 19/10 - Measuring sum, difference, or ratio 5
H02S 50/00 - Monitoring or testing of PV systems, e.g. load balancing or fault identification 5
G01R 19/12 - Measuring rate of change 4
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Found results for  patents

1.

BIPV MODULE IMBALANCE MONITORING SYSTEM

      
Application Number KR2024019345
Publication Number 2026/084126
Status In Force
Filing Date 2024-11-29
Publication Date 2026-04-23
Owner E2Z CO., LTD. (Republic of Korea)
Inventor
  • Song, Ki Taek
  • Son, Myeong Ju

Abstract

The present invention relates to a BIPV module imbalance monitoring system and, more particularly, to a BIPV module imbalance monitoring system which, when an abnormality occurs in a power generation amount of a string of a BIPV, diagnoses imbalance between modules in which the abnormality occurs, thereby enabling efficient data processing and diagnosis of imbalance, and diagnoses an imbalance state of a module output in the string according to the degree of voltage imbalance between modules in the string and the degree of voltage fluctuation, thereby enabling accurate diagnosis of the imbalance state.

IPC Classes  ?

  • H02S 50/10 - Testing of PV devices, e.g. of PV modules or single PV cells
  • H02S 20/22 - Supporting structures directly fixed to an immovable object specially adapted for buildings
  • G01R 19/165 - Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
  • G01R 19/10 - Measuring sum, difference, or ratio
  • G01R 19/00 - Arrangements for measuring currents or voltages or for indicating presence or sign thereof
  • G01R 19/12 - Measuring rate of change
  • G01R 21/00 - Arrangements for measuring electric power or power factor

2.

BIPV FIRE MONITORING SYSTEM

      
Application Number KR2024019346
Publication Number 2026/084127
Status In Force
Filing Date 2024-11-29
Publication Date 2026-04-23
Owner E2Z CO., LTD. (Republic of Korea)
Inventor
  • Song, Ki Taek
  • Son, Myeong Ju

Abstract

The present invention relates to a BIPV fire monitoring system and, more particularly, to a BIPV fire monitoring system that, while applying a voltage to each string of BIPV devices, which are integrally formed on an outer wall of a building, for a predetermined time to measure insulation resistance, calculates a kick index indicating a degree of change for each unit time to enable accurate diagnosis of insulation resistance abnormalities, and generates a fire risk warning according to an insulation resistance abnormality state, thereby reducing the occurrence of fire due to a decrease in insulation resistance of a BIPV.

IPC Classes  ?

  • G08B 21/18 - Status alarms
  • G08B 17/00 - Fire alarmsAlarms responsive to explosion
  • H02S 20/22 - Supporting structures directly fixed to an immovable object specially adapted for buildings
  • H02S 50/00 - Monitoring or testing of PV systems, e.g. load balancing or fault identification
  • G01R 27/02 - Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
  • G01R 19/165 - Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
  • G01R 19/10 - Measuring sum, difference, or ratio
  • G01R 19/12 - Measuring rate of change
  • G01R 19/00 - Arrangements for measuring currents or voltages or for indicating presence or sign thereof

3.

BIPV MONITORING SYSTEM USING STRING CHARACTERISTICS

      
Application Number KR2024019347
Publication Number 2026/084128
Status In Force
Filing Date 2024-11-29
Publication Date 2026-04-23
Owner E2Z CO., LTD. (Republic of Korea)
Inventor
  • Song, Ki Taek
  • Son, Myeong Ju

Abstract

The present invention relates to a BIPV monitoring system and, more particularly, to a BIPV monitoring system using string characteristics, in which strings are classified in consideration of characteristics of solar modules included in the strings and characteristics of inverters connected to the strings, for each zone for BIPV devices, and an abnormal state of the string is detected by using a change pattern of an index regarding a string state in the classified string, thereby increasing management and maintenance efficiency of BIPV through accurate state identification of the BIPV device integrally formed on an outer wall of a building and reducing risks such as fires and accidents.

IPC Classes  ?

  • H02S 50/00 - Monitoring or testing of PV systems, e.g. load balancing or fault identification
  • G01R 19/165 - Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
  • G01R 19/10 - Measuring sum, difference, or ratio
  • G01R 19/00 - Arrangements for measuring currents or voltages or for indicating presence or sign thereof
  • G01R 21/00 - Arrangements for measuring electric power or power factor
  • G01R 27/02 - Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant

4.

REAL-TIME MONITORING SYSTEM FOR PHOTOVOLTAIC POWER GENERATION FACILITY

      
Application Number KR2024014827
Publication Number 2026/005135
Status In Force
Filing Date 2024-09-30
Publication Date 2026-01-02
Owner E2Z CO., LTD. (Republic of Korea)
Inventor
  • Song, Ki Taek
  • Son, Myeong Ju

Abstract

The present invention relates to a real-time monitoring system for a photovoltaic power generation facility. More particularly, the present invention relates to a real-time monitoring system for a photovoltaic power generation facility, the system allowing diagnosis of a type of failure by using an area on an I–V coordinate plane while comparing a predicted power generation amount and a current power generation amount for each string of the photovoltaic power generation facility. Accordingly, the system enables quick identification of the location and type of a failure even in a remote environment, and allows visual confirmation of whether a failure has occurred and the type of the failure, thereby facilitating prompt response to the failure. In addition, the system allows diagnosis of an unbalanced output state of a photovoltaic module according to the degree of voltage imbalance and voltage fluctuation between modules within a string, thereby enabling accurate diagnosis of the unbalanced state.

IPC Classes  ?

  • H02S 50/00 - Monitoring or testing of PV systems, e.g. load balancing or fault identification
  • G01R 19/165 - Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
  • G01R 31/52 - Testing for short-circuits, leakage current or ground faults
  • G01R 19/10 - Measuring sum, difference, or ratio

5.

SYSTEM FOR DIAGNOSING INSULATION RESISTANCE OF PHOTOVOLTAIC POWER GENERATION FACILITY

      
Application Number KR2024014828
Publication Number 2026/005136
Status In Force
Filing Date 2024-09-30
Publication Date 2026-01-02
Owner E2Z CO., LTD. (Republic of Korea)
Inventor
  • Song, Ki Taek
  • Son, Myeong Ju

Abstract

The present invention relates to a system for diagnosing insulation resistance of a photovoltaic power generation facility and, more specifically, to a system for diagnosing insulation resistance of a photovoltaic power generation facility, in which while insulation resistance is being measured by applying a voltage to a string for a predetermined time, a kick index indicating a degree of change for each unit time can be calculated so as to diagnose an abnormality in the insulation resistance. Thus, deterioration of the insulation resistance can be identified regardless of various environments, thereby enabling the prevention of accidents in advance.

IPC Classes  ?

  • G01R 27/02 - Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
  • G01R 19/165 - Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
  • G01R 19/10 - Measuring sum, difference, or ratio
  • G01R 19/12 - Measuring rate of change
  • G01R 19/00 - Arrangements for measuring currents or voltages or for indicating presence or sign thereof
  • H02S 50/00 - Monitoring or testing of PV systems, e.g. load balancing or fault identification

6.

COMPREHENSIVE DIAGNOSIS SYSTEM FOR PHOTOVOLTAIC POWER GENERATION FACILITY USING STRING SELECTION AND PATTERN ANALYSIS

      
Application Number KR2024014829
Publication Number 2026/005137
Status In Force
Filing Date 2024-09-30
Publication Date 2026-01-02
Owner E2Z CO., LTD. (Republic of Korea)
Inventor
  • Song, Ki Taek
  • Son, Myeong Ju

Abstract

The present invention relates to a comprehensive diagnosis system for a photovoltaic power generation facility and, more specifically, to a comprehensive diagnosis system for a photovoltaic power generation facility using string selection and pattern analysis, which classifies strings according to device information of each string and a change pattern of an index affecting a failure, and detects a string showing a different change pattern of an index in the same classification as a string in which an abnormality related to the corresponding index has occurred, thereby enabling accurate identification of an abnormal state regardless of various conditions and environments of the string.

IPC Classes  ?

  • H02S 50/00 - Monitoring or testing of PV systems, e.g. load balancing or fault identification
  • H02S 40/32 - Electrical components comprising DC/AC inverter means associated with the PV module itself, e.g. AC modules
  • G01W 1/12 - Sunshine-duration recorders
  • G01R 19/165 - Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
  • G01R 19/12 - Measuring rate of change
  • G01R 19/00 - Arrangements for measuring currents or voltages or for indicating presence or sign thereof
  • G01R 27/02 - Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant

7.

DETACHABLE AND FUNCTIONAL BUILDING-INTEGRATED PHOTOVOLTAIC SYSTEM AND METHOD FOR INSTALLING SAME

      
Application Number KR2024096669
Publication Number 2025/150763
Status In Force
Filing Date 2024-12-11
Publication Date 2025-07-17
Owner E2Z CO., LTD. (Republic of Korea)
Inventor
  • Song, Ki Taek
  • Kim, Jong Hyun

Abstract

The present invention relates to a detachable and functional building-integrated photovoltaic system and a method for installing same and, more specifically, to a detachable and functional building-integrated photovoltaic system which can secure earthquake-resistant and heat insulating performances by coupling photovoltaic modules on both sides to an exterior wall structure through a double-fitting joint method while the photovoltaic modules are coupled with a sealed space therebetween, and thereby enabling easy and quick installation and maintenance through simple attachment/detachment along with firm fixation.

IPC Classes  ?

  • H02S 20/26 - Building materials integrated with PV modules, e.g. façade elements
  • H02S 20/30 - Supporting structures being movable or adjustable, e.g. for angle adjustment
  • H02S 30/10 - Frame structures

8.

BATTERY DEVICE WATER INJECTION SYSTEM

      
Application Number KR2024015783
Publication Number 2025/135434
Status In Force
Filing Date 2024-10-17
Publication Date 2025-06-26
Owner E2Z CO., LTD. (Republic of Korea)
Inventor Song, Ki Taek

Abstract

The present invention relates to a battery device water injection system and, more specifically, to a battery device water injection system that enables efficient fire suppression by: forcibly discharging gas generated from a battery module to the outside when the temperature of the battery module rises, so as to enable rapid fire detection before the occurrence of thermal runaway; and injecting fire-extinguishing water through a water injection port in a module housing that accommodates the battery module, and simultaneously discharging fire-extinguishing water through a discharge port at the upper end of the module housing, so as to keep supplying fresh fire-extinguishing water while maintaining the battery module in a fully submerged state without the need for additional equipment or control.

IPC Classes  ?

  • H01M 10/42 - Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
  • H01M 50/375 - Vent means sensitive to or responsive to temperature
  • H01M 50/383 - Flame arresting or ignition-preventing means
  • H01M 50/673 - Containers for storing liquidsDelivery conduits therefor
  • H01M 10/617 - Types of temperature control for achieving uniformity or desired distribution of temperature
  • H01M 10/6561 - Gases
  • A62C 35/68 - Details, e.g. of pipes or valve systems
  • A62C 3/16 - Fire prevention, containment or extinguishing specially adapted for particular objects or places in electrical installations, e.g. cableways
  • A62C 99/00 - Subject matter not provided for in other groups of this subclass

9.

Solar power equalization system

      
Application Number 18265249
Grant Number 12119652
Status In Force
Filing Date 2020-12-22
First Publication Date 2024-03-28
Grant Date 2024-10-15
Owner E2Z CO., LTD. (Republic of Korea)
Inventor
  • Song, Ki Taek
  • Lee, Cheol Song
  • Kim, Jun Woo

Abstract

Proposed is a solar power equalization system, more particularly, a solar power equalization system, wherein connection of an output-reduced string is switched to a power compensation device for fast charging, and after fast charging, compensation for output is performed, thereby minimizing the influence of the reduction in output of a string on the total output and increasing power generation efficiency.

IPC Classes  ?

  • H02J 3/28 - Arrangements for balancing the load in a network by storage of energy
  • H02S 50/10 - Testing of PV devices, e.g. of PV modules or single PV cells

10.

Solar power leveling system via string-based power compensation

      
Application Number 18268260
Grant Number 12218629
Status In Force
Filing Date 2020-12-22
First Publication Date 2024-02-15
Grant Date 2025-02-04
Owner E2Z CO., LTD. (Republic of Korea)
Inventor
  • Song, Ki Taek
  • Lee, Cheol Song
  • Kim, Kyung Rok
  • Kim, Jun Woo

Abstract

Proposed is a solar power leveling system, more particularly, a solar power leveling system via string-based power compensation, wherein outputs between strings are equalized by charging or discharging using a power compensation device so that output through solar power generation is maximized with a simple device configuration, and when there is reduction in output of a plurality of strings, compensation power for maximizing the total string output is calculated to achieve power compensation, whereby the power compensation device performs power compensation with a single discharging part and maximizes the total power generation amount of the strings connected to each other in parallel.

IPC Classes  ?

  • H02S 40/36 - Electrical components characterised by special electrical interconnection means between two or more PV modules, e.g. electrical module-to-module connection
  • G01R 31/382 - Arrangements for monitoring battery or accumulator variables, e.g. SoC
  • H02J 7/00 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
  • H02J 7/35 - Parallel operation in networks using both storage and other DC sources, e.g. providing buffering with light sensitive cells
  • H02S 40/32 - Electrical components comprising DC/AC inverter means associated with the PV module itself, e.g. AC modules
  • H02S 50/10 - Testing of PV devices, e.g. of PV modules or single PV cells