| (19) |
 |
|
(11) |
EP 4 488 580 A3 |
| (12) |
EUROPEAN PATENT APPLICATION |
| (88) |
Date of publication A3: |
|
02.04.2025 Bulletin 2025/14 |
| (43) |
Date of publication A2: |
|
08.01.2025 Bulletin 2025/02 |
| (22) |
Date of filing: 25.03.2022 |
|
| (51) |
International Patent Classification (IPC):
|
|
| (84) |
Designated Contracting States: |
|
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 |
| (30) |
Priority: |
25.03.2021 CN 202120612600 U
|
| (62) |
Application number of the earlier application in accordance with Art. 76 EPC: |
|
22774353.1 / 4273449 |
| (71) |
Applicants: |
|
- Midea Group Co., Ltd.
Foshan, Guangdong 528311 (CN)
- Wuhu Midea Kitchen and Bath Appliances
Mfg. Co., Ltd.
Wuhu, Anhui 241009 (CN)
|
|
| (72) |
Inventors: |
|
- CHEN, Wenfeng
Anhui 241009 (CN)
- WANG, Jin
Anhui 241009 (CN)
- LIANG, Guorong
Anhui 241009 (CN)
|
| (74) |
Representative: RGTH |
|
Patentanwälte PartGmbB
Neuer Wall 10
20354 Hamburg
20354 Hamburg (DE) |
|
| |
|
| (54) |
FIRE GRATE AND MANUFACTURING METHOD THEREOF, BURNER AND WATER HEATER |
(57) A burner bar (10), a manufacturing method therefor, a burner and a water heater applying
the burner bar. The burner bar (10) comprises a burner bar body (100), aflame stabilizing
apparatus (200), and a metal mesh (300). The burner bar body (100) forms a ventilating
channel (110). A diverting hole (120) in communication with the ventilation channel
(110) is provided at the top section (130) of the burner bar body (100). The flame
stabilizing apparatus (200) is provided at the upper section of the burner bar body
(100). The flame stabilizing apparatus (200) is provided therein with a cavity (210)
having an opening (211) on the top side. A gap (212) is provided between the sidewall
of the cavity (210) and the surface of the burner bar body (100). The gap (212) is
in communication with the ventilation channel (110). The metal mesh (300) is affixed
at the position corresponding to the diverting hole (120) to the burner bar body (100).
The metal mesh (300) and the flame stabilizing apparatus (200) provide double flame
stabilizing effects and increase the range of adaptability to single-piece heat load
burning, the area of the aperture of the diverting hole (120) is increased, the performance
of instant burning and flue gas discharging is great, and the usage requirement for
an overall low nitrogen emission is satisfied.
