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1. 发明公开

EP4435816A1 MAGNETIC SHIELDING STRUCTURE FOR RELAY CONTACT AND RELAY 审中-实审
公开(公告)号：EP4435816A1
公开(公告)日：2024-09-25
申请号：EP24163862.6
申请日：2024-03-15
申请人： Xiamen Hongfa Electric Power Controls Co., Ltd.
发明人： DAI, Wenguang , XIE, Fengzhu , SU, Liji , CHEN, Songsheng , WANG, Meng
IPC分类号： H01H9/44 , H01H50/54 , H01H1/20
CPC分类号： H01H9/443 , H01H50/546 , H01H9/446 , H01H1/20
摘要： A magnetic shielding structure for a relay contact and a relay are provided, the magnetic shielding structure includes a contact assembly (2), a first magnetic shielding member (5), an anti-short circuit assembly (3) and a permanent magnet (6). The contact assembly (2) includes a movable contact piece (22) and a pair of stationary contact lead-out terminals (21), and the movable contact piece (22) is used to contact with or separate from the pair of stationary contact lead-out terminals (21); the anti-short circuit assembly (3) is at least disposed at an upper side of the movable contact piece (22) along an axial direction of the stationary contact lead-out terminals (21), and can generate suction force when a faulty high current in the movable contact piece (22) for resisting an electrodynamic repulsion force between the movable contact piece (22) and the stationary contact lead-out terminals (21); the permanent magnet (6) is disposed around the contact assembly (2) to achieve arc extinguishing by a magnetic field formed by the permanent magnet (6); the first magnetic shielding member (5) is sleeved on the outside of a stationary contact lead-out terminal (21) for shielding a magnetic field generated by the stationary contact lead-out terminal (21) when energized; the first magnetic shielding member (5) blocks the magnetic field transmitted from the permanent magnet (6) to the anti-short circuit assembly (3).

2. 发明公开

EP4358109A1 MULTI-PHASE ELECTROMAGNETIC RELAY 审中-实审
公开(公告)号：EP4358109A1
公开(公告)日：2024-04-24
申请号：EP22824323.4
申请日：2022-06-17
申请人： Xiamen Hongfa Electric Power Controls Co., Ltd.
发明人： ZHONG, Shuming , DAI, Wenguang , LI, Fangneng , YIN, Jianfeng , JIANG, Ziyu
IPC分类号： H01H50/56 , H01H50/14
CPC分类号： H01H50/14 , H01H50/56
摘要： A multi-phase electromagnetic relay, comprising a plurality of paths of lead-out terminals and a plurality of movable and stationary contact matching structures (61, 62, 63), wherein each lead-out terminal separately comprises a wire inlet terminal (21, 22, 23) and a wire outlet terminal (31, 32, 33); a movable and stationary contact matching structure is matched between the wire inlet terminal and the wire outlet terminal in the same path; a plurality of wire inlet terminals are arranged at one side of the movable and stationary contact matching structure, and a plurality of wire outlet terminals are arranged at the other side of the movable and stationary contact matching structure; The plurality of wire inlet terminals are spaced apart from each other but are not staggered, the plurality of wire outlet terminals are spaced apart from each other but are not staggered, and the plurality of wire inlet terminals and the plurality of wire outlet terminals are spaced apart from each other but are not staggered; The external connection ends (211, 221, 231) of the plurality of wire inlet terminals and the external connection ends (311, 321, 331) of the plurality of wire outlet terminals all extend towards the same direction; and the external connection end of the wire inlet terminal and the external connection end of the wire outlet terminal in the same path are oppositely arranged at the two sides of the movable and stationary contact matching structure. According to the multi-phase electromagnetic relay, the lead-out terminals can be prevented from being arranged in a staggered mode, so that the problems of complex insulation and spot-welding are solved, and copper consumption can be reduced; moreover, the copper consumption of movable and stationary spring components in the relay can be reduced, so that the cost is reduced.

3. 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).

4. 发明公开

EP4280245A2 DIRECT-CURRENT RELAY RESISTANT TO SHORT-CIRCUIT CURRENT 审中-实审
公开(公告)号：EP4280245A2
公开(公告)日：2023-11-22
申请号：EP23202507.2
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) arranged on two sides in the width direction of the movable spring (2). Two permanent magnets (71) have same magnetic poles on a side facing to the movable and stationary contacts; A yoke clip (72) is connected between the two permanent magnets (71). Upper and lower magnetizers (61, 62) are respectively mounted above and under the position, and can approach or come into 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

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.

6. 发明公开

EP4447083A1 RELAY 审中-实审
公开(公告)号：EP4447083A1
公开(公告)日：2024-10-16
申请号：EP24167734.3
申请日：2024-03-28
申请人： Xiamen Hongfa Electric Power Controls Co., Ltd.
发明人： DAI, Wenguang , ZHONG, Shuming , WANG, Meng , SU, Liji , CHEN, Jinpin
IPC分类号： H01H1/54 , H01H50/54 , H01H9/44 , H01H50/38
CPC分类号： H01H1/20 , H01H1/54 , H01H9/443 , H01H50/38 , H01H50/546
摘要： A relay includes a contact container (10) having a contact chamber (101) and a pair of first through holes (102), a pair of static contact leading-out terminals (20) respectively passing through the pair of first through holes (102), a moving part (80), a first magnetizer (40) within the contact chamber (101) and connected with the moving part (80); and a movable member (53) including a movable contact piece (54) and a second magnetizer (55). The movable contact piece (54) may contact with or separate from the pair of static contact leading-out terminals (20). The first and second magnetizer (55) s are arranged at opposite sides of the movable contact piece (54) and formed a magnetic circuit. Wherein the first magnetizer (40) is movable relative to the movable member (53) through the moving part (80) and is configured to adjust a distance between the first magnetizer (40) and the second magnetizer (55) according to a value of a current flowing through the movable contact piece (54).

7. 发明公开

EP4369375A1 MAGNETIC CIRCUIT PART HAVING ENHANCED INITIAL ELECTROMAGNETIC ATTRACTION FORCE, AND HIGH-VOLTAGE DIRECT-CURRENT RELAY 审中-实审
公开(公告)号：EP4369375A1
公开(公告)日：2024-05-15
申请号：EP22837057.3
申请日：2022-07-08
申请人： Xiamen Hongfa Electric Power Controls Co., Ltd.
发明人： DAI, Wenguang , SU, Liji , WANG, Meng
IPC分类号： H01H50/16 , H01H50/44 , H01H50/36
CPC分类号： H01H50/36 , H01H50/16 , H01H50/44
摘要： Disclosed in the present invention are a magnetic circuit part having an enhanced initial electromagnetic attraction force, and a high-voltage direct-current relay. The magnetic circuit part comprises a coil, a movable magnetic conductor and a static magnetic conductor, wherein the coil, the movable magnetic conductor and the static magnetic conductor are respectively mounted at suitable positions, such that a magnetic pole surface of the movable magnetic conductor and a magnetic pole surface of the static magnetic conductor are in opposite positions with a preset magnetic gap; and one of the two magnetic pole surfaces is provided with a protrusion that protrudes toward the other magnetic pole surface, and the other magnetic pole surface is provided, at a position corresponding to the protrusion, with a recess in which the protrusion of one of the magnetic pole surfaces can be embedded when the movable magnetic conductor and the static magnetic conductor attract each other. According to the present invention, the initial electromagnetic attraction force can be enhanced under the same volume and power consumption of the coil; or under the same initial electromagnetic attraction force, the volume of the coil is reduced, and the power consumption of the coil is decreased.

8. 发明公开

EP4266342A1 RELAY MOVABLE SPRING CAPABLE OF REDUCING TEMPERATURE RISE AND RELAY 审中-实审
公开(公告)号：EP4266342A1
公开(公告)日：2023-10-25
申请号：EP21905556.3
申请日：2021-12-03
申请人： Xiamen Hongfa Electric Power Controls Co., Ltd.
发明人： ZHONG, Shuming , DAI, Wenguang , LI, Fangneng , LIAO, Guojin
IPC分类号： H01H50/56
摘要： A relay movable spring capable of reducing temperature rise comprising movable contacts, a movable spring sheet and a movable spring lead-out sheet. The movable spring sheet has an opposite first end and second end; the first end is connected to the movable spring leading-out sheet; the movable spring sheet comprises at least two current-carrying conductors; at least two movable contacts are provided, which are fixed to the at least two current-carrying conductors respectively, and which are close to the second end of the movable spring sheet, so that the movable spring sheet forms at least two parallel structures; and a connecting sheet is also mounted on the movable spring sheet, the connecting sheet connecting the at least two movable contacts.

9. 发明公开

EP4200887A1 HIGH-VOLTAGE DC RELAY WITH AUXILIARY CONTACT 有权
公开(公告)号：EP4200887A1
公开(公告)日：2023-06-28
申请号：EP21786002.2
申请日：2021-09-23
申请人： Xiamen Hongfa Electric Power Controls Co., Ltd.
发明人： ZHONG, Shuming , DAI, Wenguang , WANG, Meng
IPC分类号： H01H50/54

10. 发明公开

EP4047629A1 MAGNETIC LATCHING RELAY HAVING MICROSWITCH 审中-实审
公开(公告)号：EP4047629A1
公开(公告)日：2022-08-24
申请号：EP20877395.2
申请日：2020-07-22
申请人： Xiamen Hongfa Electric Power Controls Co., Ltd.
发明人： ZHONG, Shuming , LIAO, Guojin , DAI, Wenguang , LI, Fangneng
IPC分类号： H01H50/08 , H01H50/18 , H01H50/64 , H01H51/01
摘要： A magnetic latching relay having a microswitch (2), comprising an insulating housing (1) and the microswitch (2). The insulating housing (1) is formed by fixedly connecting a base (11) and a cover (12); an armature assembly (31) is pivotally connected to the base (11); an assembly area (112) for accommodating the microswitch (2) is provided at the end of the base (11) close to the armature assembly (31); a microswitch (2) housing abuts against the bottom of the assembly area (112) and is positioned by the assembly area (112); the side of the microswitch (2) housing close to the armature assembly (31) is partially suspended; the space below the suspended part of the microswitch (2) housing gives way to movement of the armature assembly (31) and/or push fasteners (4); the cover (12) presses the microswitch (2) housing; a pressing rod (313) extends from one end of the armature assembly (31) to the cover (12) side; when the armature assembly (31) rotates, the pressing rod (313) presses a microswitch (2) trigger reed (22) or release the microswitch (2) trigger reed (22). Further, the bottom of the assembly area (112) is provided with two positioning columns (1a), and each of the positioning columns (1a) is inserted into a mounting hole (21) on the microswitch (2). The magnetic latching relay having the microswitch (2) has a compact structure, making the magnetic latching relay additionally provided with the microswitch (2) have a small size.

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