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1. 发明公开

EP4300534A3 DIRECT-CURRENT RELAY RESISTANT TO SHORT-CIRCUIT CURRENT 审中-实审
公开(公告)号：EP4300534A3
公开(公告)日：2024-02-21
申请号：EP23202512.2
申请日：2019-11-08
申请人： Xiamen Hongfa Electric Power Controls Co., Ltd.
发明人： ZHONG, Shuming , DAI, Wenguang , FU, Dapeng , WANG, Meng
IPC分类号： H01H1/54 , H01H50/42 , H01H50/40 , H01H9/44 , H01H50/54 , H01H53/02
摘要： A DC relay capable of extinguishing arc and resisting short-circuit current includes two stationary contact leading-out terminals (11, 12), a push rod component (3), a straight sheet type movable spring (2) mounted on the push rod component (3) and two permanent magnets (71). The magnetic poles on the sides opposite to each other of the two permanent magnets (71) are opposite. Two permanent magnets (71) are connected to two yoke clips (72) including at least two yoke sections (720) on two sides in the width direction of the movable spring (2). Upper and lower magnetizers (61, 62) are respectively mounted above and under the position, and can approach or contact with each other through the through holes (22) in the movable spring (2). At least two independent magnetically conductive loops are formed in the width direction of the movable spring (2) by the upper and lower magnetizers (61, 62).

2. 发明公开

EP4184544A1 HIGH-VOLTAGE DIRECT CURRENT RELAY CAPABLE OF IMPROVING INSULATION CAPABILITY 审中-实审
公开(公告)号：EP4184544A1
公开(公告)日：2023-05-24
申请号：EP22275143.0
申请日：2022-11-14
申请人： Xiamen Hongfa Electric Power Controls Co., Ltd.
发明人： DAI, Wenguang , WANG, Meng , FU, Dapeng , CHEN, Songsheng
IPC分类号： H01H50/14 , H01H50/54
摘要： A high-voltage direct current relay capable of improving insulation capability, including a ceramic cover, two fixed contacts for respectively providing inflow and outflow current and one movable contact spring; a through hole for assembling the fixed contact being provided at a top wall of the ceramic cover; one segment of a body of the fixed contact being in clearance fitted with the through hole of the ceramic cover, a first step surface downward being provided at an outer peripheral wall of one segment of the body of the fixed contact, at a corresponding position, a second step surface upward being provided at an inner peripheral wall of the through hole of the ceramic cover, and the projections of the first step surface and the second step surface on the horizontal plane having an overlapped region.

3. 发明公开

EP4283649A3 DIRECT-CURRENT RELAY RESISTANT TO SHORT-CIRCUIT CURRENT 审中-实审
公开(公告)号：EP4283649A3
公开(公告)日：2024-02-21
申请号：EP23202491.9
申请日：2019-11-08
申请人： Xiamen Hongfa Electric Power Controls Co., Ltd.
发明人： ZHONG, Shuming , DAI, Wenguang , FU, Dapeng , WANG, Meng
IPC分类号： H01H1/54 , H01H50/42 , H01H50/40 , H01H9/44 , H01H50/54 , H01H53/02
摘要： A DC relay capable of extinguishing arc and resisting short-circuit current includes two stationary contact leading-out terminals (11, 12), a push rod component (3), a straight sheet type movable spring (2) mounted on the push rod component (3) and two permanent magnets (71) arranged on two sides in the width direction of the movable spring (2). Each permanent magnet (71) connects one L-shaped yoke clip (72) at one end, and the other end of the yoke clip (72) is outside the two ends in the length direction of the movable spring (2). Upper and lower magnetizers (61, 62) are respectively mounted above and under the position, and can approach or contact with each other through the through holes (22) in the movable spring (2). At least two independent magnetically conductive loops are formed in the width direction of the movable spring (2) by the upper and lower magnetizers (61, 62).

4. 发明公开

EP4280246A3 DIRECT-CURRENT RELAY RESISTANT TO SHORT-CIRCUIT CURRENT 审中-实审
公开(公告)号：EP4280246A3
公开(公告)日：2024-02-21
申请号：EP23202516.3
申请日：2019-11-08
申请人： Xiamen Hongfa Electric Power Controls Co., Ltd.
发明人： ZHONG, Shuming , DAI, Wenguang , FU, Dapeng , WANG, Meng
IPC分类号： H01H1/54 , H01H50/42 , H01H50/40 , H01H9/44 , H01H50/54 , H01H53/02
摘要： A DC relay having a function of extinguishing arc and resisting short-circuit current includes two stationary contact leading-out terminals (11, 12), a push rod component (3), a straight sheet type movable spring (2) mounted on the push rod component (3) and two permanent magnets (71) on two sides of the movable spring (2). Two permanent magnets (71) have opposite magnetic poles on sides facing to the movable and stationary. A yoke clip (72) is connected between two permanent magnets (71). Upper and lower magnetizers (61, 62) are respectively mounted above and under the position, and can approach or contact with each other through the through holes (22) in the movable spring (2). At least two independent magnetically conductive loops are formed in the width direction of the movable spring (2) by the upper and lower magnetizers (62).

5. 发明公开

EP4283650A3 DIRECT-CURRENT RELAY RESISTANT TO SHORT-CIRCUIT CURRENT 审中-实审
公开(公告)号：EP4283650A3
公开(公告)日：2024-02-21
申请号：EP23202501.5
申请日：2019-11-08
申请人： Xiamen Hongfa Electric Power Controls Co., Ltd.
发明人： ZHONG, Shuming , DAI, Wenguang , FU, Dapeng , WANG, Meng
IPC分类号： H01H1/54 , H01H50/42 , H01H50/40 , H01H9/44 , H01H50/54 , H01H53/02
摘要： A DC relay having a function of extinguishing arc and resisting short-circuit current includes two stationary contact leading-out terminals (11, 12), a straight sheet type movable spring (2), a push rod component (3), and four permanent magnets (71) respectively arranged on the two sides in the width direction of the movable spring (2), and magnetic poles on a side facing to the movable and stationary contacts are opposite. Two permanent magnets (71) corresponding to a same side have opposite magnetic poles. A yoke clip (72) is connected between the two permanent magnets (71). Upper and lower magnetizers (61, 62) arranged in a width direction and can approach or contact with each other through the through hole (22) of the movable spring (2); At least two independent magnetically conductive loops are formed in the width direction of the movable spring (2) by the upper and lower magnetizers (61, 62).

6. 发明公开

EP4300534A2 DIRECT-CURRENT RELAY RESISTANT TO SHORT-CIRCUIT CURRENT 审中-实审
公开(公告)号：EP4300534A2
公开(公告)日：2024-01-03
申请号：EP23202512.2
申请日：2019-11-08
申请人： Xiamen Hongfa Electric Power Controls Co., Ltd.
发明人： ZHONG, Shuming , DAI, Wenguang , FU, Dapeng , WANG, Meng
IPC分类号： H01H50/54
摘要： A DC relay capable of extinguishing arc and resisting short-circuit current includes two stationary contact leading-out terminals (11, 12), a push rod component (3), a straight sheet type movable spring (2) mounted on the push rod component (3) and two permanent magnets (71). The magnetic poles on the sides opposite to each other of the two permanent magnets (71) are opposite. Two permanent magnets (71) are connected to two yoke clips (72) including at least two yoke sections (720) on two sides in the width direction of the movable spring (2). Upper and lower magnetizers (61, 62) are respectively mounted above and under the position, and can approach or contact with each other through the through holes (22) in the movable spring (2). At least two independent magnetically conductive loops are formed in the width direction of the movable spring (2) by the upper and lower magnetizers (61, 62).

7. 发明公开

EP4283650A2 DIRECT-CURRENT RELAY RESISTANT TO SHORT-CIRCUIT CURRENT 审中-实审
公开(公告)号：EP4283650A2
公开(公告)日：2023-11-29
申请号：EP23202501.5
申请日：2019-11-08
申请人： Xiamen Hongfa Electric Power Controls Co., Ltd.
发明人： ZHONG, Shuming , DAI, Wenguang , FU, Dapeng , WANG, Meng
IPC分类号： H01H50/54
摘要： A DC relay having a function of extinguishing arc and resisting short-circuit current includes two stationary contact leading-out terminals (11, 12), a straight sheet type movable spring (2), a push rod component (3), and four permanent magnets (71) respectively arranged on the two sides in the width direction of the movable spring (2), and magnetic poles on a side facing to the movable and stationary contacts are opposite. Two permanent magnets (71) corresponding to a same side have opposite magnetic poles. A yoke clip (72) is connected between the two permanent magnets (71). Upper and lower magnetizers (61, 62) arranged in a width direction and can approach or contact with each other through the through hole (22) of the movable spring (2); At least two independent magnetically conductive loops are formed in the width direction of the movable spring (2) by the upper and lower magnetizers (61, 62).

8. 发明公开

EP4283649A2 DIRECT-CURRENT RELAY RESISTANT TO SHORT-CIRCUIT CURRENT 审中-实审
公开(公告)号：EP4283649A2
公开(公告)日：2023-11-29
申请号：EP23202491.9
申请日：2019-11-08
申请人： Xiamen Hongfa Electric Power Controls Co., Ltd.
发明人： ZHONG, Shuming , DAI, Wenguang , FU, Dapeng , WANG, Meng
IPC分类号： H01H50/54
摘要： A DC relay capable of extinguishing arc and resisting short-circuit current includes two stationary contact leading-out terminals (11, 12), a push rod component (3), a straight sheet type movable spring (2) mounted on the push rod component (3) and two permanent magnets (71) arranged on two sides in the width direction of the movable spring (2). Each permanent magnet (71) connects one L-shaped yoke clip (72) at one end, and the other end of the yoke clip (72) is outside the two ends in the length direction of the movable spring (2). Upper and lower magnetizers (61, 62) are respectively mounted above and under the position, and can approach or contact with each other through the through holes (22) in the movable spring (2). At least two independent magnetically conductive loops are formed in the width direction of the movable spring (2) by the upper and lower magnetizers (61, 62).

9. 发明公开

EP4280246A2 DIRECT-CURRENT RELAY RESISTANT TO SHORT-CIRCUIT CURRENT 审中-实审
公开(公告)号：EP4280246A2
公开(公告)日：2023-11-22
申请号：EP23202516.3
申请日：2019-11-08
申请人： Xiamen Hongfa Electric Power Controls Co., Ltd.
发明人： ZHONG, Shuming , DAI, Wenguang , FU, Dapeng , WANG, Meng
IPC分类号： H01H50/54
摘要： A DC relay having a function of extinguishing arc and resisting short-circuit current includes two stationary contact leading-out terminals (11, 12), a push rod component (3), a straight sheet type movable spring (2) mounted on the push rod component (3) and two permanent magnets (71) on two sides of the movable spring (2). Two permanent magnets (71) have opposite magnetic poles on sides facing to the movable and stationary. A yoke clip (72) is connected between two permanent magnets (71). Upper and lower magnetizers (61, 62) are respectively mounted above and under the position, and can approach or contact with each other through the through holes (22) in the movable spring (2). At least two independent magnetically conductive loops are formed in the width direction of the movable spring (2) by the upper and lower magnetizers (62).

10. 发明公开

EP3879553A1 DIRECT-CURRENT RELAY RESISTANT TO SHORT-CIRCUIT CURRENT 有权
公开(公告)号：EP3879553A1
公开(公告)日：2021-09-15
申请号：EP19881489.9
申请日：2019-11-08
申请人： Xiamen Hongfa Electric Power Controls Co., Ltd.
发明人： ZHONG, Shuming , DAI, Wenguang , FU, Dapeng , WANG, Meng
IPC分类号： H01H50/64 , H01H50/16 , H01H1/54
摘要： Disclosed is a direct-current relay resistant to short-circuit current, the relay comprising two stationary contact leading-out terminals (11, 12), a movable leaf spring (2) and a push rod component (3), wherein an upper magnetizer (61) is mounted above a preset position of the movable leaf spring (2), and a lower magnetizer (62) capable of moving along with the movable leaf spring (2) is mounted below the preset position of the movable spring (2); and at least one through hole (22) is provided in the movable leaf spring (2) at the preset position, such that the upper magnetizer (61) and the lower magnetizer (62) can approach each other or come into contact with each other by means of the through hole (22), and the upper magnetizer (61) and the lower magnetizer (62) form at least two independent magnetically conductive loops on the width of the movable leaf spring (2). By using magnetic pole faces added to the positions of the corresponding through holes (22) by the various magnetically conductive loops, when the movable leaf spring (2) has a large fault current, attraction in a contact pressure direction is generated to resist an electro-dynamic repulsion force generated, due to the fault current, between the movable leaf spring (2) and the stationary contact leading-out terminals (11, 12), and the present invention has the characteristics of high magnetic efficiency and low possibility of saturation of a magnetic circuit.

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