WO2022095284A1 - High-capacity relay with reliable auxiliary contact - Google Patents
High-capacity relay with reliable auxiliary contact Download PDFInfo
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- WO2022095284A1 WO2022095284A1 PCT/CN2021/073461 CN2021073461W WO2022095284A1 WO 2022095284 A1 WO2022095284 A1 WO 2022095284A1 CN 2021073461 W CN2021073461 W CN 2021073461W WO 2022095284 A1 WO2022095284 A1 WO 2022095284A1
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- auxiliary
- lead
- contact
- reed
- static
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- 238000012544 monitoring process Methods 0.000 claims abstract description 24
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 20
- 230000005291 magnetic effect Effects 0.000 claims abstract description 13
- 230000003068 static effect Effects 0.000 claims description 71
- 235000014676 Phragmites communis Nutrition 0.000 claims description 63
- 239000000919 ceramic Substances 0.000 claims description 27
- 238000007789 sealing Methods 0.000 claims description 27
- 230000007704 transition Effects 0.000 claims description 12
- 238000005219 brazing Methods 0.000 claims description 10
- 244000273256 Phragmites communis Species 0.000 claims description 9
- 238000003466 welding Methods 0.000 claims description 8
- 238000000605 extraction Methods 0.000 claims description 6
- 239000011521 glass Substances 0.000 claims description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 239000010949 copper Substances 0.000 claims description 4
- 229910000833 kovar Inorganic materials 0.000 claims description 4
- 229910045601 alloy Inorganic materials 0.000 claims description 3
- 239000000956 alloy Substances 0.000 claims description 3
- 238000005245 sintering Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 2
- 238000000034 method Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 230000008859 change Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000002955 isolation Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000013011 mating Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 229910000531 Co alloy Inorganic materials 0.000 description 1
- KGWWEXORQXHJJQ-UHFFFAOYSA-N [Fe].[Co].[Ni] Chemical compound [Fe].[Co].[Ni] KGWWEXORQXHJJQ-UHFFFAOYSA-N 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000003302 ferromagnetic material Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002923 metal particle Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Images
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/54—Contact arrangements
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/02—Bases; Casings; Covers
- H01H50/023—Details concerning sealing, e.g. sealing casing with resin
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/16—Magnetic circuit arrangements
- H01H50/36—Stationary parts of magnetic circuit, e.g. yoke
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/54—Contact arrangements
- H01H50/541—Auxiliary contact devices
Definitions
- the invention relates to the technical field of relays, in particular to a high-capacity relay with reliable auxiliary contacts isolated from the main circuit.
- a relay is an electrical control device that makes a predetermined step change in the controlled quantity in the electrical output circuit when the change of the input quantity (excitation quantity) reaches the specified requirements. loop) and the controlled system (also known as the output loop), which play the roles of automatic adjustment, safety protection and conversion circuit in the circuit.
- high-capacity relays are widely used in high-voltage DC loads such as vehicles, photovoltaics and charging piles.
- auxiliary contacts In view of the above application scenarios of high-voltage DC loads, it is often necessary to set auxiliary contacts to monitor the status of the main contacts and perform low-voltage Linkage control to improve the safety and reliability of electrical equipment.
- the high-voltage DC relay has a set of normally open auxiliary contacts added to the top of the ceramic cavity, and its structure is relatively simple , but because the main contacts and auxiliary contacts are distributed on the top of the ceramic at the same time, the high and low load isolation effect is poor; when the main contact disconnects the load, the arc is easy to escape to the auxiliary contacts, causing the high and low loads to be connected, and even burning the auxiliary contacts.
- the switching logic of the auxiliary contacts of this structure is single, and the switching logic of the auxiliary contacts is synchronous with the main contacts, so it is difficult to realize the action under the opposite logic ;
- the auxiliary contacts of this structure have a single form, only a normally open structure, which is difficult to meet the requirements of the relay for normally closed auxiliary contacts; the auxiliary contacts are large in size, usually only one set can be set on the top of the ceramic cavity, When multiple sets of auxiliary contacts need to be set, the relay structure increases in size, the structure is complex, the cost increases, and the reliability decreases simultaneously, which is not conducive to improving the market competitiveness of the product.
- a high-capacity relay with reliable auxiliary contacts includes:
- a shell the top of the shell is provided with an incoming line static contact and an outgoing line static contact, the incoming line static contact is used for receiving current from an external power supply device, and the outgoing line static contact is used for external
- the electrical equipment transmits current, and the bottom of the casing is provided with a magnetic conductive block;
- a push rod assembly comprising a push rod and a movable contact elastically connected with the push rod, the movable contact is accommodated in the inner cavity of the casing and can be relative to the casing along the height direction of the casing
- the inner wall moves to switch on and off the incoming static contact and the outgoing static contact;
- a sealing tube the top of the sealing tube is connected with the magnetic conductive block, the sealing tube accommodates a moving iron core, the moving iron core is connected with the push rod, and the end of the sealing tube is provided with a The bottom plate of the sealing tube is blocked, and a monitoring chamber is formed between the bottom plate and the moving iron core;
- An auxiliary static reed is arranged on one end of one of the lead-out rods located in the monitoring chamber, and the other end of the lead-out rod in each group of the lead-out rods located in the monitoring chamber is provided with an auxiliary static reed.
- the other two lead-out rods are respectively provided with auxiliary static reeds matched with the auxiliary moving reeds at one end located in the monitoring chamber;
- the push rod assembly When the moving iron core moves in the sealing tube, the push rod assembly is moved to connect and disconnect the incoming line static contact and the outgoing line static contact, and squeeze or release the auxiliary moving reed to The auxiliary moving reed and the auxiliary static reed are turned on and off.
- the auxiliary static reed is normally open or normally closed with the auxiliary movable reed.
- connection between the lead-out rod and the bottom plate is fixed by means of glass frit.
- a ceramic block is provided on the bottom plate, and the connection between the lead-out rod and the bottom plate is fixed by ceramic brazing.
- a transition piece is respectively provided between the ceramic block and the lead-out rod and between the ceramic block and the bottom plate, and is fixed by high-temperature brazing, and the transition piece is made of pure material. Copper or Kovar.
- the bottom plate and the sealing tube are hermetically connected by laser welding or resistance welding.
- the contact portion between the auxiliary movable reed and the auxiliary static reed is a pair of convex points or riveted contact pieces or contacts that cooperate with each other.
- the housing includes a ceramic cover and a transition block connected to the opening of the ceramic cover by high temperature brazing, and the magnetic conductive block is mounted on the bottom of the outer surface of the transition block.
- the incoming static contacts and outgoing static contacts are arranged on the top of the housing, and the auxiliary contact components are arranged away from the top of the housing.
- the isolation effect of the load; the main contact and the auxiliary contact assembly do not affect each other, which avoids the influence or damage to the auxiliary contact assembly caused by the arc generated during the operation of the main contact, improves the safety and reliability of the relay and prolongs the use of the relay.
- auxiliary contact assembly is arranged on the bottom plate at the end of the sealing tube, which occupies a small area and does not increase the volume of the product, which improves the adaptability of the relay size to general electrical equipment, and its simple structure is conducive to improving the market competition of the product. force.
- FIG. 1 is a schematic structural diagram of a high-capacity relay in an embodiment of the present invention.
- FIG. 2 is a schematic cross-sectional structure diagram of the high-capacity relay in the embodiment shown in FIG. 1;
- FIG. 3 is a schematic diagram of an explosion structure of the high-capacity relay in the embodiment shown in FIG. 1;
- FIG. 4 is a diagram of the cooperation relationship between a lead-out rod and a bottom plate in an embodiment of the present invention
- FIG. 5 is a diagram showing the cooperation relationship between the lead-out rod and the bottom plate in another embodiment of the present invention.
- the present invention provides a high-capacity relay 10 with reliable auxiliary contacts isolated from the main circuit.
- the high-capacity relay 10 includes an incoming static contact 110 and
- the housing 100 with the outgoing static contact 120 and the magnetic conductive block 130 at the bottom is accommodated in the inner cavity of the housing 100 and can move relative to the inner wall of the housing 100 along the height direction of the housing 100 to connect and disconnect the incoming static
- the contact 110, the movable contact 210 of the outgoing static contact 120, and the push rod 220 elastically connected with the movable contact 210 to push the movable contact 210 to act together constitute the push rod assembly 200;
- the top end is connected to the magnetic conductive block 130 and
- the inner cavity accommodates the sealing tube 400 of the movable iron core 300 connected with the push rod 220 , the end of the sealing tube 400 is provided with a bottom plate 500 for sealing the sealing tube 400 , and a monitoring room 600 is formed between the bottom plate 500 and the movable iron core 300 ; and
- the housing 100 is used to isolate the arc generated when the incoming static contact 110 and the outgoing static contact 120 are conducting through the movable contact 210 from the external environment, so as to improve the safety of the relay.
- the housing 100 includes a ceramic casing 140 and a transition block 150 connected to the opening of the ceramic casing 140 by high temperature brazing.
- the casing 100 may also be an integrally formed structure.
- the ceramic cover 140 is used to block the metal spatter generated by the arc from burning the inner surface of the housing 100, so as to further improve the safety of the relay.
- the incoming static contact 110 and the outgoing static contact 120 are the main contacts of the high-capacity relay 10 of this embodiment, wherein the incoming static contact 110 is used for receiving current from an external power supply device, and the outgoing static contact 120 is used for In order to transmit current to external electrical equipment, it can also be understood that the incoming static contact 110 and the outgoing static contact 120 can be regarded as the wires of the two poles of the relay respectively, and the two are jointly used to connect the relay with the external power supply and the load circuit to connect the relay with the external power supply and the load circuit. Conducive to the relay to make or break the circuit.
- the magnetic conductive block 130 is made of ferromagnetic material and is used to isolate the auxiliary contact assembly 700 from the incoming line static contact 110 and the outgoing line static contact 120. Specifically, during the working process of the relay, the incoming line static contact 110 and The high-voltage end is connected to the static contact 120 of the outgoing line, which is the high-voltage end, and the auxiliary contact assembly 700 is the low-voltage end. The arc generated when the head 110 and the outgoing static contact 120 are connected travels to the auxiliary contact assembly 700 , so as to improve the safety of the relay and ensure the reliability of state monitoring through the auxiliary contact assembly 700 .
- the bottom plate 500 is used to block the monitoring chamber 600 to ensure the reliability of the relay state monitoring operation by the auxiliary contact assembly 700 .
- the bottom plate 500 and the sealing tube 400 are hermetically connected by laser welding or resistance welding.
- the inner cavity of the casing 100 is filled with gas, and the sealing connection method of laser welding or resistance welding ensures the sealing of the casing 100 to avoid the occurrence of gas leakage.
- the lead-out rod 710 is used for electrical connection with external electrical equipment or control equipment, and is used for sending state information inside the relay to the external electrical equipment or control equipment for monitoring and analysis, so as to grasp the state parameters in the relay.
- the connection between the lead-out rods 710 and the bottom plate 500 is fixed by glass sintering. After glass sintering, the gap between each lead-out rod 710 and the bottom plate 500 is filled with a glass body 740 , so as to achieve The purpose of improving the connection strength of the lead-out rod 710 and the bottom plate 500 and improving the air tightness of the monitoring room 600 .
- a ceramic block 750 is disposed on one side of the bottom plate 500 , and the connection between the lead-out rod 710 and the bottom plate 500 is fixed by ceramic brazing.
- the ceramic block 750 can be arranged either on the top of the bottom plate 500 or on the bottom of the bottom plate 500 , depending on the size of the monitoring chamber 600 .
- a transition piece is respectively disposed between the ceramic block 750 and the lead-out rod 710 and between the ceramic block 750 and the bottom plate 500 and fixed by high temperature brazing, and the transition piece is made of pure copper or kovar. Alloys (ie iron-nickel-cobalt alloys).
- transition pieces made of pure copper or Kovar alloy are arranged on the mating surface between the ceramic block 750 and the lead-out rod 710 and the mating surface between the ceramic block 750 and the bottom plate 500, high temperature brazing is performed to improve the connection quality And the purpose of sealing quality.
- the auxiliary moving reed 730 is used to connect or disconnect with the auxiliary static reed 720 under the action of the moving iron core 300 to change the potential value output to the external electrical equipment, so that the operator can judge the relay according to the potential value of the external electrical equipment working status.
- the contact portion of the auxiliary moving reed 730 and the auxiliary static reed 720 is a pair of convex points or riveted contact pieces or contacts that cooperate with each other.
- connection portion between the auxiliary moving reed 730 and the auxiliary static reed 720 may also adopt other matching forms, so as to facilitate the connection and disconnection of the auxiliary moving reed 730 and the auxiliary static reed 720 , which will not be repeated here.
- the 720 and the auxiliary moving reed 730 can be designed as a normally open structure or a normally closed structure, that is, the auxiliary static reed 720 and the auxiliary moving reed 730 are normally open or normally closed.
- the combination of the auxiliary contact assemblies 700 can be combined according to the use scene of the relay.
- the auxiliary contact assembly 700 when the auxiliary contact assembly 700 includes two sets of auxiliary contact units, it can be two sets of normally open auxiliary contact units. Contact units, two sets of normally closed auxiliary contact units, two sets of conversion type auxiliary contact units, and any combination of the three types of auxiliary contact units will not be repeated here.
- the monitoring principle of the relay state by the auxiliary contact assembly 700 of the present invention is as follows: when the moving iron core 300 moves in the sealing tube 400, it will drive the push rod assembly 200 to move to connect and disconnect the incoming line static contact 110 and the outgoing line static contact 120, And squeeze or release the auxiliary movable reed 730 to connect and disconnect the auxiliary movable reed 730 and the auxiliary static reed 720 .
- m 2
- the auxiliary static reed 720 and the auxiliary movable reed 730 are normally closed cooperation structures for illustration.
- the auxiliary moving reed 730 and the auxiliary static reed 720 are closed.
- the moving iron core 300 When the moving iron core 300 is energized, the moving iron core 300 moves toward the top of the housing 100. During this process, the moving iron core 300 leaves the auxiliary moving reed 730, so that the auxiliary moving iron core 300 moves away from the auxiliary moving reed 730.
- the leaf 730 is separated from the auxiliary static reed 720, and at the same time, the moving iron core 300 pushes the push rod 220, and then pushes the moving contact 210 to connect with the incoming static contact 110 and the outgoing static contact 120 respectively, so as to conduct conduction In this way, when the electrical equipment connected to the group of lead-out rods 710 of the auxiliary contact assembly 700 does not detect the electrical signal or the electrical signal suddenly changes to zero, it can be judged that the relay is in the ON state.
- auxiliary static reed 720 and the auxiliary movable reed 730 are normally open matching structures, the monitoring logic of the relay is reversed, that is, when the electrical signal monitored by the external electrical equipment suddenly changes to zero, it can be judged that the relay is disconnected. state.
- the incoming line static contact 110 and the outgoing line static contact 120 are arranged on the top of the housing 100, and the auxiliary contact assembly 700 is arranged on the top of the housing 100.
- the bottom plate 500 is arranged away from the top of the casing 100, and a magnetic conductive block is arranged at the bottom of the casing 100 to isolate the high and low voltage loads, thereby increasing the distance between the main contact and the auxiliary contact assembly 700, thereby increasing the creepage
- the electrical distance and the air distance improve the isolation effect of high and low loads; the main contact and the auxiliary contact assembly 700 do not affect each other, which avoids the influence or damage to the auxiliary contact assembly 700 caused by the arc generated during the operation of the main contact.
- the safety and reliability of the use of the relay are improved and the service life of the relay is prolonged; by setting one or more lead-out rods 710 and auxiliary contacts installed on the lead-out rods 710, the number of auxiliary contacts can be adjusted according to the needs of users. and the matching method are selected to meet the needs of use; in addition, the auxiliary contact assembly 700 is arranged on the bottom plate 500 at the end of the sealing tube 400, which occupies a small area and does not increase the volume of the product, which improves the size of the relay to the general electrical
- the adaptability of the equipment and its simple structure are conducive to enhancing the market competitiveness of the product.
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Abstract
The present invention relates to the technical field of relays. Disclosed is a high-capacity relay with a reliable auxiliary contact, comprising: a housing provided with an incoming wire stationary contact and an outgoing wire stationary contact at the top thereof and a magnetic conductive block at the bottom thereof; a push rod assembly consisting of a movable contact accommodated in the housing and a push rod elastically connected to the movable contact; a sealed tube connected to the magnetic conductive block, wherein an internal cavity thereof accommodates a movable iron core connected to the push rod, and a monitoring chamber is formed between a base plate at a terminal end of the sealed tube and the movable iron core; and an auxiliary contact assembly comprising at least one set of lead-out rods inserted into the base plate, wherein each set of lead-out rods comprises m lead-out rods, m is 2 or 3, when m = 2, each set of lead-out rods is respectively provided with an auxiliary stationary spring plate and an auxiliary movable spring plate, when m = 3, the middle lead-out rod in each set of lead-out rods is provided with an auxiliary movable spring plate and the other two lead-out rods are respectively provided with auxiliary stationary spring plates, and the movable iron core drives the push rod assembly to move so as to connect or disconnect the incoming wire stationary contact and the outgoing wire stationary contact and to press or release the auxiliary movable spring plate so as to connect or disconnect the auxiliary contact assembly.
Description
本发明涉及继电器技术领域，特别是涉及一种带有与主回路隔离的可靠辅助触点的高容量继电器。The invention relates to the technical field of relays, in particular to a high-capacity relay with reliable auxiliary contacts isolated from the main circuit.
继电器是一种当输入量(激励量)的变化达到规定要求时，在电气输出电路中使被控量发生预定的阶跃变化的一种电控制器件，由互动配合的控制***(又称输入回路)和被控制***(又称输出回路)构成，在电路中起着自动调节、安全保护以及转换电路等作用。随着绿色能源的兴起，高容量继电器在车载、光伏以及充电桩等高压直流负载中广泛应用，鉴于高压直流负载的上述应用场景，往往需要设置辅助触点来监测主触点的状态并进行低压联动控制，以提升电气设备使用的安全性及可靠性。A relay is an electrical control device that makes a predetermined step change in the controlled quantity in the electrical output circuit when the change of the input quantity (excitation quantity) reaches the specified requirements. loop) and the controlled system (also known as the output loop), which play the roles of automatic adjustment, safety protection and conversion circuit in the circuit. With the rise of green energy, high-capacity relays are widely used in high-voltage DC loads such as vehicles, photovoltaics and charging piles. In view of the above application scenarios of high-voltage DC loads, it is often necessary to set auxiliary contacts to monitor the status of the main contacts and perform low-voltage Linkage control to improve the safety and reliability of electrical equipment.
然而，由于新能源汽车以及光伏、工控等领域中的高容量继电器的负载电压比较高，基于安全性、可靠性等因素考虑，继电器往往采用陶瓷密封结构，陶瓷密封结构的设置提升了辅助触点的安装难度，使得继电器的性能下降。例如，申请号为CN202010366809.1的中国发明专利公开了一种带辅助触点的高压直流继电器，该高压直流继电器在陶瓷腔体的顶部增加了一组常开的辅助触点，其结构较为简单，但由于主触点和辅助触点同时分布在陶瓷顶部，高低负载隔离效果差；当主触点开断负载时，电弧容易窜到辅助触点，造成高低负载连通，甚至烧毁辅助触点，存在安全隐患；主触点飞溅的金属颗粒容易污染辅助触点，辅助触点的可靠性无法保证；此结构辅助触点的开关逻辑单一，与主触点同步通断，难以实现相反逻辑下的动作；此结构的辅助触点形式单一，仅为常开型结构，难以满足继电器对常闭型辅助触点的需求；辅助触点尺寸较大，通常只能在陶瓷腔体的顶部设置一组，当需要设置多组辅助触点时，继电器结构体积增大，结构复杂，成本提升且可靠性同步下降，不利于提升产品的市场竞争力。However, due to the relatively high load voltage of high-capacity relays in new energy vehicles, photovoltaics, industrial control and other fields, based on factors such as safety and reliability, relays often use ceramic sealing structures. The setting of ceramic sealing structures improves the auxiliary contact. The difficulty of installation reduces the performance of the relay. For example, the Chinese invention patent with the application number CN202010366809.1 discloses a high-voltage DC relay with auxiliary contacts. The high-voltage DC relay has a set of normally open auxiliary contacts added to the top of the ceramic cavity, and its structure is relatively simple , but because the main contacts and auxiliary contacts are distributed on the top of the ceramic at the same time, the high and low load isolation effect is poor; when the main contact disconnects the load, the arc is easy to escape to the auxiliary contacts, causing the high and low loads to be connected, and even burning the auxiliary contacts. Hidden safety hazards; metal particles splashed from the main contact easily contaminate the auxiliary contacts, and the reliability of the auxiliary contacts cannot be guaranteed; the switching logic of the auxiliary contacts of this structure is single, and the switching logic of the auxiliary contacts is synchronous with the main contacts, so it is difficult to realize the action under the opposite logic ; The auxiliary contacts of this structure have a single form, only a normally open structure, which is difficult to meet the requirements of the relay for normally closed auxiliary contacts; the auxiliary contacts are large in size, usually only one set can be set on the top of the ceramic cavity, When multiple sets of auxiliary contacts need to be set, the relay structure increases in size, the structure is complex, the cost increases, and the reliability decreases simultaneously, which is not conducive to improving the market competitiveness of the product.
发明内容SUMMARY OF THE INVENTION
基于此，有必要针对传统高容量继电器的不足，提供一种带有与主回路隔离的可靠辅助触点的高容量继电器。Based on this, it is necessary to provide a high-capacity relay with reliable auxiliary contacts isolated from the main circuit, aiming at the shortcomings of traditional high-capacity relays.
一种带有可靠辅助触点的高容量继电器，该高容量继电器包括：A high-capacity relay with reliable auxiliary contacts, the high-capacity relay includes:
壳体，所述壳体的顶部穿设有进线静触头与出线静触头，所述进线静触头用于由外部电源装置接入电流，所述出线静触头用于向外部电气设备传输电流，所述壳体的底部设有导磁块；A shell, the top of the shell is provided with an incoming line static contact and an outgoing line static contact, the incoming line static contact is used for receiving current from an external power supply device, and the outgoing line static contact is used for external The electrical equipment transmits current, and the bottom of the casing is provided with a magnetic conductive block;
推杆组件，包括推杆以及与所述推杆弹性连接的动触头，所述动触头收容于所述壳体的内腔并可沿所述壳体的高度方向相对于所述壳体的内壁移动，以通断所述进线静触头与所述出线静触头；A push rod assembly, comprising a push rod and a movable contact elastically connected with the push rod, the movable contact is accommodated in the inner cavity of the casing and can be relative to the casing along the height direction of the casing The inner wall moves to switch on and off the incoming static contact and the outgoing static contact;
密封管，所述密封管的顶端与所述导磁块相连接，所述密封管内收容有动铁芯，所述动铁芯与所述推杆相连接，所述密封管的末端设有用于封堵所述密封管的底板，所述底板与所述动铁芯之间形成监测室；以及A sealing tube, the top of the sealing tube is connected with the magnetic conductive block, the sealing tube accommodates a moving iron core, the moving iron core is connected with the push rod, and the end of the sealing tube is provided with a The bottom plate of the sealing tube is blocked, and a monitoring chamber is formed between the bottom plate and the moving iron core; and
辅助触点组件，包括穿设所述底板并与所述底板连接的至少一组引出杆，每组所述引出杆包括m根引出杆，m为2或3，当m＝2时，每组所述引出杆中的一个引出杆上位于所述监测室的一端设置有辅助静簧片，每组所述引出杆中的另一个引出杆上位于所述监测室的一端设置有与所述辅助静簧片配合的辅助动簧片；当m＝3时，每组所述引出杆中的中间引出杆上位于所述监测室的一端设置有辅助动簧片，每组所述引出杆中的另外两个引出杆上位于所述监测室的一端分别设有与所述辅助动簧片配合的辅助静簧片；Auxiliary contact assembly, including at least one group of lead-out rods passing through and connected to the bottom plate, each group of said lead-out rods includes m lead-out rods, m is 2 or 3, when m=2, each group of lead-out rods An auxiliary static reed is arranged on one end of one of the lead-out rods located in the monitoring chamber, and the other end of the lead-out rod in each group of the lead-out rods located in the monitoring chamber is provided with an auxiliary static reed. The auxiliary movable reed matched with the static reed; when m=3, an auxiliary movable reed is provided on the end of the middle extraction rod in each group of the extraction rods located in the monitoring chamber, and the auxiliary movable reed is arranged in the middle extraction rod of each group The other two lead-out rods are respectively provided with auxiliary static reeds matched with the auxiliary moving reeds at one end located in the monitoring chamber;
所述动铁芯在所述密封管内移动时带动所述推杆组件运动以通断所述进线静触头与所述出线静触头，并挤压或者放开所述辅助动簧片以通断所述辅助动簧片与所述辅助静簧片。When the moving iron core moves in the sealing tube, the push rod assembly is moved to connect and disconnect the incoming line static contact and the outgoing line static contact, and squeeze or release the auxiliary moving reed to The auxiliary moving reed and the auxiliary static reed are turned on and off.
在其中一个实施例中，当m＝2时，所述辅助静簧片与所述辅助动簧片常开配合或常闭配合。In one embodiment, when m=2, the auxiliary static reed is normally open or normally closed with the auxiliary movable reed.
在其中一个实施例中，所述引出杆与所述底板连接处通过玻璃烧结方式相固定。In one embodiment, the connection between the lead-out rod and the bottom plate is fixed by means of glass frit.
在其中一个实施例中，所述底板上设置有陶瓷块，所述引出杆与所述底板 连接处通过陶瓷钎焊方式相固定。In one embodiment, a ceramic block is provided on the bottom plate, and the connection between the lead-out rod and the bottom plate is fixed by ceramic brazing.
在其中一个实施例中，所述陶瓷块与所述引出杆之间以及所述陶瓷块与所述底板之间分别设置一过渡件并经高温钎焊方式相固定，所述过渡件材料为纯铜或者可伐合金。In one embodiment, a transition piece is respectively provided between the ceramic block and the lead-out rod and between the ceramic block and the bottom plate, and is fixed by high-temperature brazing, and the transition piece is made of pure material. Copper or Kovar.
在其中一个实施例中，所述底板与所述密封管通过激光焊接或者电阻焊密封连接。In one embodiment, the bottom plate and the sealing tube are hermetically connected by laser welding or resistance welding.
在其中一个实施例中，所述辅助动簧片与所述辅助静簧片的接触部为相互配合的一对凸点或铆接的触片或触点。In one embodiment, the contact portion between the auxiliary movable reed and the auxiliary static reed is a pair of convex points or riveted contact pieces or contacts that cooperate with each other.
在其中一个实施例中，所述壳体包括陶瓷罩壳以及与所述陶瓷罩壳的开口部位高温钎焊连接的过渡块，所述导磁块安装于所述过渡块的外表面底部。In one embodiment, the housing includes a ceramic cover and a transition block connected to the opening of the ceramic cover by high temperature brazing, and the magnetic conductive block is mounted on the bottom of the outer surface of the transition block.
实施本发明的带有可靠辅助触点的高容量继电器，将进线静触头与出线静触头，即主触头设置在壳体的顶部，将辅助触点组件设置在远离壳体顶部设置的底板上，并在壳体底部设置导磁块对高低压负载进行隔离，增大了主触头与辅助触点组件之间的距离，进而增大了爬电距离以及空气距离，提升了高低负载的隔离效果；主触头与辅助触点组件互不影响，避免了主触头工作中产生的电弧对辅助触点组件造成的影响或损坏，提升了继电器使用的安全性及可靠性并延长了继电器的使用寿命；通过设置一组及以上的引出杆及安装在引出杆上的辅助触点，可根据用户的需求对辅助触点的数量及配合方式进行选择，以满足使用需要；此外，辅助触点组件设置在密封管端部的底板上，占用面积较小，且不会增加产品的体积，提升了继电器尺寸对一般电气设备的适应能力，其结构简单，有利于提升产品的市场竞争力。To implement the high-capacity relay with reliable auxiliary contacts of the present invention, the incoming static contacts and outgoing static contacts, that is, the main contacts, are arranged on the top of the housing, and the auxiliary contact components are arranged away from the top of the housing. On the bottom plate, and set a magnetic conductive block at the bottom of the shell to isolate the high and low voltage loads, increase the distance between the main contact and the auxiliary contact assembly, thereby increase the creepage distance and air distance, and improve the height The isolation effect of the load; the main contact and the auxiliary contact assembly do not affect each other, which avoids the influence or damage to the auxiliary contact assembly caused by the arc generated during the operation of the main contact, improves the safety and reliability of the relay and prolongs the use of the relay. prolong the service life of the relay; by setting one or more lead-out rods and auxiliary contacts installed on the lead-out rods, the number of auxiliary contacts and the matching method can be selected according to the needs of users to meet the needs of use; in addition, The auxiliary contact assembly is arranged on the bottom plate at the end of the sealing tube, which occupies a small area and does not increase the volume of the product, which improves the adaptability of the relay size to general electrical equipment, and its simple structure is conducive to improving the market competition of the product. force.
图1为本发明的一个实施例中高容量继电器的结构示意图；1 is a schematic structural diagram of a high-capacity relay in an embodiment of the present invention;
图2为图1所示实施例中高容量继电器的剖面结构示意图；FIG. 2 is a schematic cross-sectional structure diagram of the high-capacity relay in the embodiment shown in FIG. 1;
图3为图1所示实施例中高容量继电器的***结构示意图；3 is a schematic diagram of an explosion structure of the high-capacity relay in the embodiment shown in FIG. 1;
图4为本发明的一个实施例中引出杆与底板的配合关系图；FIG. 4 is a diagram of the cooperation relationship between a lead-out rod and a bottom plate in an embodiment of the present invention;
图5为本发明的另一个实施例中引出杆与底板的配合关系图。FIG. 5 is a diagram showing the cooperation relationship between the lead-out rod and the bottom plate in another embodiment of the present invention.
为使本发明的上述目的、特征和优点能够更加明显易懂，下面结合附图对本发明的具体实施方式做详细的说明。在下面的描述中阐述了很多具体细节以便于充分理解本发明。但是本发明能够以很多不同于在此描述的其它方式来实施，本领域技术人员可以在不违背本发明内涵的情况下做类似改进，因此本发明不受下面公开的具体实施例的限制。In order to make the above objects, features and advantages of the present invention more clearly understood, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below.
请一并参阅图1至图3，本发明提供了一种带有与主回路隔离的可靠辅助触点的高容量继电器10，该高容量继电器10包括顶部穿设有进线静触头110与出线静触头120且底部设有导磁块130的壳体100；由收容于壳体100内腔并可沿壳体100的高度方向相对于壳体100的内壁移动，以通断进线静触头110与出线静触头120的动触头210，以及与动触头210弹性连接以推动动触头210动作的推杆220共同构成的推杆组件200；顶端与导磁块130连接且内腔收容有与推杆220连接的动铁芯300的密封管400，密封管400的末端设有用于封堵密封管400的底板500，底板500与动铁芯300间形成监测室600；以及辅助触点组件700，包括穿设底板500并与底板500连接的至少一组引出杆710，每组引出杆710包括m根引出杆710，m为2或3，当m＝2时，每组引出杆710中的一个引出杆710上位于所述监测室600的一端设置有辅助静簧片720，每组引出杆710中的另一个引出杆710上位于所述监测室600的一端设置有与辅助静簧片720配合的辅助动簧片730；当m＝3时，每组引出杆710中的中间引出杆710上位于所述监测室600的一端设置有辅助动簧片730，每组引出杆710中的另外两个引出杆710上位于所述监测室600的一端分别设有与辅助动簧片730配合的辅助静簧片720，可以理解为，当m＝3时，辅助触点组件700包括至少一组转换型辅助触点。需要说明的是，本实施例中壳体100的高度方向是由壳体100的顶部指向壳体100底部的方向，其他实施例中可参照此解释。Please refer to FIG. 1 to FIG. 3 together. The present invention provides a high-capacity relay 10 with reliable auxiliary contacts isolated from the main circuit. The high-capacity relay 10 includes an incoming static contact 110 and The housing 100 with the outgoing static contact 120 and the magnetic conductive block 130 at the bottom is accommodated in the inner cavity of the housing 100 and can move relative to the inner wall of the housing 100 along the height direction of the housing 100 to connect and disconnect the incoming static The contact 110, the movable contact 210 of the outgoing static contact 120, and the push rod 220 elastically connected with the movable contact 210 to push the movable contact 210 to act together constitute the push rod assembly 200; the top end is connected to the magnetic conductive block 130 and The inner cavity accommodates the sealing tube 400 of the movable iron core 300 connected with the push rod 220 , the end of the sealing tube 400 is provided with a bottom plate 500 for sealing the sealing tube 400 , and a monitoring room 600 is formed between the bottom plate 500 and the movable iron core 300 ; and The auxiliary contact assembly 700 includes at least one set of lead-out rods 710 passing through the base plate 500 and connected to the base plate 500 , each set of lead-out rods 710 includes m lead-out rods 710 , m is 2 or 3, when m=2, each set of lead-out rods 710 An auxiliary static reed 720 is provided on one end of one of the lead-out rods 710 located in the monitoring chamber 600, and the other end of the lead-out rod 710 in each group of the lead-out rods 710 located in the monitoring chamber 600 is provided with an auxiliary static reed 720. Auxiliary moving reed 730 matched with auxiliary static reed 720; when m=3, an auxiliary moving reed 730 is provided on one end of the middle lead-out rod 710 in each group of lead-out rods 710 located in the monitoring chamber 600, and each group of lead-out rods The other two lead-out rods 710 in the rods 710 are respectively provided with auxiliary static reeds 720 matched with the auxiliary moving reeds 730 at one end of the monitoring chamber 600. It can be understood that when m=3, the auxiliary contact assembly 700 includes at least one set of switch-type auxiliary contacts. It should be noted that, in this embodiment, the height direction of the casing 100 is the direction from the top of the casing 100 to the bottom of the casing 100 , and other embodiments may refer to this explanation.
壳体100用于将进线静触头110与出线静触头120经由动触头210导通时产生的电弧同外部环境隔离开来，以提高了继电器使用的安全性。一实施例中，壳体100包括陶瓷罩壳140以及与陶瓷罩壳140的开口部位高温钎焊连接的过 渡块150。当然，壳体100也可以为一体式成型结构。陶瓷罩壳140用于阻断电弧产生的金属飞溅物对壳体100内表面的灼烧，以进一步提升继电器使用的安全性。The housing 100 is used to isolate the arc generated when the incoming static contact 110 and the outgoing static contact 120 are conducting through the movable contact 210 from the external environment, so as to improve the safety of the relay. In one embodiment, the housing 100 includes a ceramic casing 140 and a transition block 150 connected to the opening of the ceramic casing 140 by high temperature brazing. Of course, the casing 100 may also be an integrally formed structure. The ceramic cover 140 is used to block the metal spatter generated by the arc from burning the inner surface of the housing 100, so as to further improve the safety of the relay.
进线静触头110与出线静触头120为本实施例的高容量继电器10的主触头，其中，进线静触头110用于由外部电源装置接入电流，出线静触头120用于向外部电气设备传输电流，也可以理解为，进线静触头110与出线静触头120可分别看作继电器两极的导线，二者共同用于将继电器与外部电源及负载电路连通，以利于继电器接通或分断电路。The incoming static contact 110 and the outgoing static contact 120 are the main contacts of the high-capacity relay 10 of this embodiment, wherein the incoming static contact 110 is used for receiving current from an external power supply device, and the outgoing static contact 120 is used for In order to transmit current to external electrical equipment, it can also be understood that the incoming static contact 110 and the outgoing static contact 120 can be regarded as the wires of the two poles of the relay respectively, and the two are jointly used to connect the relay with the external power supply and the load circuit to connect the relay with the external power supply and the load circuit. Conducive to the relay to make or break the circuit.
导磁块130由铁磁性材料制成，用于隔离辅助触点组件700与进线静触头110和出线静触头120，具体的，在继电器的工作过程中，进线静触头110与出线静触头120部位通入高压，即为高压端，辅助触点组件700处为低压端，即，导磁块130隔开了高压端及低压端，避免动触头210与进线静触头110和出线静触头120连通时产生的电弧窜动到辅助触点组件700部，以提升继电器的安全性并保证经由辅助触点组件700进行状态监测的可靠性。The magnetic conductive block 130 is made of ferromagnetic material and is used to isolate the auxiliary contact assembly 700 from the incoming line static contact 110 and the outgoing line static contact 120. Specifically, during the working process of the relay, the incoming line static contact 110 and The high-voltage end is connected to the static contact 120 of the outgoing line, which is the high-voltage end, and the auxiliary contact assembly 700 is the low-voltage end. The arc generated when the head 110 and the outgoing static contact 120 are connected travels to the auxiliary contact assembly 700 , so as to improve the safety of the relay and ensure the reliability of state monitoring through the auxiliary contact assembly 700 .
底板500用于封堵监测室600，保证辅助触点组件700对继电器状态监测作业的可靠性。一实施例中，底板500与密封管400通过激光焊接或者电阻焊密封连接。具体的，在实际应用中，壳体100的内腔充入了气体，激光焊接或者电阻焊密封连接方式保证了壳体100的密封性，以避免气体泄露问题的发生。The bottom plate 500 is used to block the monitoring chamber 600 to ensure the reliability of the relay state monitoring operation by the auxiliary contact assembly 700 . In one embodiment, the bottom plate 500 and the sealing tube 400 are hermetically connected by laser welding or resistance welding. Specifically, in practical applications, the inner cavity of the casing 100 is filled with gas, and the sealing connection method of laser welding or resistance welding ensures the sealing of the casing 100 to avoid the occurrence of gas leakage.
引出杆710用于与外部电气设备或控制设备电连接，用以将继电器内部的状态信息发送至外部电气设备或控制设备进行监测分析，以掌握继电器内的状态参数。请参阅图4，一实施例中，引出杆710与底板500连接处通过玻璃烧结方式相固定，经玻璃烧结后，每根引出杆710与底板500连接的缝隙处均填充有玻璃体740，从而达到提升引出杆710与底板500连接强度以及提升监测室600气密性的目的。The lead-out rod 710 is used for electrical connection with external electrical equipment or control equipment, and is used for sending state information inside the relay to the external electrical equipment or control equipment for monitoring and analysis, so as to grasp the state parameters in the relay. Referring to FIG. 4 , in one embodiment, the connection between the lead-out rods 710 and the bottom plate 500 is fixed by glass sintering. After glass sintering, the gap between each lead-out rod 710 and the bottom plate 500 is filled with a glass body 740 , so as to achieve The purpose of improving the connection strength of the lead-out rod 710 and the bottom plate 500 and improving the air tightness of the monitoring room 600 .
请参阅图5，另一实施例中，底板500的一面设置有陶瓷块750，引出杆710与底板500连接处通过陶瓷钎焊方式相固定。陶瓷块750既可以设置在底板500的顶部，也可以设置在底板500的底部，具体依据监测室600的尺寸进行选择。进一步的，一实施例中，陶瓷块750与引出杆710之间以及陶瓷块750与底板 500之间分别设置一过渡件并经高温钎焊方式相固定，该过渡件材料为纯铜或者可伐合金(即铁镍钴合金)。通过在陶瓷块750与引出杆710之间的配合面以及陶瓷块750与底板500之间的配合面设置由纯铜或者可伐合金制成的过渡件，进行高温钎焊，以达到提高连接质量以及密封质量的目的。Referring to FIG. 5 , in another embodiment, a ceramic block 750 is disposed on one side of the bottom plate 500 , and the connection between the lead-out rod 710 and the bottom plate 500 is fixed by ceramic brazing. The ceramic block 750 can be arranged either on the top of the bottom plate 500 or on the bottom of the bottom plate 500 , depending on the size of the monitoring chamber 600 . Further, in an embodiment, a transition piece is respectively disposed between the ceramic block 750 and the lead-out rod 710 and between the ceramic block 750 and the bottom plate 500 and fixed by high temperature brazing, and the transition piece is made of pure copper or kovar. Alloys (ie iron-nickel-cobalt alloys). By arranging transition pieces made of pure copper or Kovar alloy on the mating surface between the ceramic block 750 and the lead-out rod 710 and the mating surface between the ceramic block 750 and the bottom plate 500, high temperature brazing is performed to improve the connection quality And the purpose of sealing quality.
辅助动簧片730用于在动铁芯300的作用下与辅助静簧片720连接或断开，以改变输出至外部电气设备的电位值，以便于作业人员依据外部电气设备的电位值判断继电器的工作状态。一实施例中，辅助动簧片730与辅助静簧片720的接触部为相互配合的一对凸点或铆接的触片或触点。当然，辅助动簧片730与辅助静簧片720的连接部位也可以采用其他配合形式，以易于使辅助动簧片730与辅助静簧片720通断为准，于此不再赘述。The auxiliary moving reed 730 is used to connect or disconnect with the auxiliary static reed 720 under the action of the moving iron core 300 to change the potential value output to the external electrical equipment, so that the operator can judge the relay according to the potential value of the external electrical equipment working status. In one embodiment, the contact portion of the auxiliary moving reed 730 and the auxiliary static reed 720 is a pair of convex points or riveted contact pieces or contacts that cooperate with each other. Of course, the connection portion between the auxiliary moving reed 730 and the auxiliary static reed 720 may also adopt other matching forms, so as to facilitate the connection and disconnection of the auxiliary moving reed 730 and the auxiliary static reed 720 , which will not be repeated here.
一实施例中，当m＝2时，辅助触点组件700包括多对辅助静簧片720与辅助动簧片730组配形成的辅助触点单元，每个辅助触点单元的辅助静簧片720与辅助动簧片730既可以设计为常开型结构，也可以设计为常闭型结构，亦即，辅助静簧片720与辅助动簧片730常开配合或常闭配合。在实际设计时，可根据继电器的使用场景对辅助触点组件700的组配关系进行组合，例如，当辅助触点组件700包括两组辅助触点单元时，可以是两组常开型的辅助触点单元、两组常闭型的辅助触点单元、两组转换型的辅助触点单元以及三种辅助触点单元的任意组合，于此不再赘述。In one embodiment, when m=2, the auxiliary contact assembly 700 includes an auxiliary contact unit formed by assembling a plurality of pairs of auxiliary static reeds 720 and auxiliary movable reeds 730, and the auxiliary static reeds of each auxiliary contact unit The 720 and the auxiliary moving reed 730 can be designed as a normally open structure or a normally closed structure, that is, the auxiliary static reed 720 and the auxiliary moving reed 730 are normally open or normally closed. In the actual design, the combination of the auxiliary contact assemblies 700 can be combined according to the use scene of the relay. For example, when the auxiliary contact assembly 700 includes two sets of auxiliary contact units, it can be two sets of normally open auxiliary contact units. Contact units, two sets of normally closed auxiliary contact units, two sets of conversion type auxiliary contact units, and any combination of the three types of auxiliary contact units will not be repeated here.
本发明的辅助触点组件700对继电器状态的监测原理为：动铁芯300在密封管400内移动时将带动推杆组件200运动以通断进线静触头110与出线静触头120，并挤压或者放开辅助动簧片730以通断辅助动簧片730与辅助静簧片720。此处以m＝2，辅助静簧片720与辅助动簧片730为常闭式配合结构进行举例说明，具体的，动铁芯300未通电时在重力作用下压向辅助动簧片730，使得辅助动簧片730与辅助静簧片720闭合，当动铁芯300通电后，动铁芯300向壳体100顶部移动，该过程中动铁芯300离开辅助动簧片730，使得辅助动簧片730与辅助静簧片720分开，与此同时，动铁芯300推动推杆220，进而推动动触头210使之分别与进线静触头110及出线静触头120连接，以导通电流，如此，当与辅助触点组件700的一组引出杆710连接的电气设备未监测到电信号 或电信号突变至零时，即可判断继电器处于接通状态。反之，当辅助静簧片720与辅助动簧片730为常开式配合结构时，继电器的监测逻辑反转，即在外部电气设备监测到的电信号突变至零时即可判断继电器处于断开状态。The monitoring principle of the relay state by the auxiliary contact assembly 700 of the present invention is as follows: when the moving iron core 300 moves in the sealing tube 400, it will drive the push rod assembly 200 to move to connect and disconnect the incoming line static contact 110 and the outgoing line static contact 120, And squeeze or release the auxiliary movable reed 730 to connect and disconnect the auxiliary movable reed 730 and the auxiliary static reed 720 . Here, m=2, and the auxiliary static reed 720 and the auxiliary movable reed 730 are normally closed cooperation structures for illustration. The auxiliary moving reed 730 and the auxiliary static reed 720 are closed. When the moving iron core 300 is energized, the moving iron core 300 moves toward the top of the housing 100. During this process, the moving iron core 300 leaves the auxiliary moving reed 730, so that the auxiliary moving iron core 300 moves away from the auxiliary moving reed 730. The leaf 730 is separated from the auxiliary static reed 720, and at the same time, the moving iron core 300 pushes the push rod 220, and then pushes the moving contact 210 to connect with the incoming static contact 110 and the outgoing static contact 120 respectively, so as to conduct conduction In this way, when the electrical equipment connected to the group of lead-out rods 710 of the auxiliary contact assembly 700 does not detect the electrical signal or the electrical signal suddenly changes to zero, it can be judged that the relay is in the ON state. On the contrary, when the auxiliary static reed 720 and the auxiliary movable reed 730 are normally open matching structures, the monitoring logic of the relay is reversed, that is, when the electrical signal monitored by the external electrical equipment suddenly changes to zero, it can be judged that the relay is disconnected. state.
实施本发明的带有可靠辅助触点的高容量继电器10，将进线静触头110与出线静触头120，即主触头设置在壳体100的顶部，将辅助触点组件700设置在远离壳体100顶部设置的底板500上，并在壳体100底部设置导磁块对高低压负载进行隔离，增大了主触头与辅助触点组件700之间的距离，进而增大了爬电距离以及空气距离，提升了高低负载的隔离效果；主触头与辅助触点组件700互不影响，避免了主触头工作中产生的电弧对辅助触点组件700造成的影响或损坏，提升了继电器使用的安全性及可靠性并延长了继电器的使用寿命；通过设置一组及以上的引出杆710及安装在引出杆710上的辅助触点，可根据用户的需求对辅助触点的数量及配合方式进行选择，以满足使用需要；此外，辅助触点组件700设置在密封管400端部的底板500上，占用面积较小，且不会增加产品的体积，提升了继电器尺寸对一般电气设备的适应能力，其结构简单，有利于提升产品的市场竞争力。Implementing the high-capacity relay 10 with reliable auxiliary contacts of the present invention, the incoming line static contact 110 and the outgoing line static contact 120, that is, the main contact, are arranged on the top of the housing 100, and the auxiliary contact assembly 700 is arranged on the top of the housing 100. The bottom plate 500 is arranged away from the top of the casing 100, and a magnetic conductive block is arranged at the bottom of the casing 100 to isolate the high and low voltage loads, thereby increasing the distance between the main contact and the auxiliary contact assembly 700, thereby increasing the creepage The electrical distance and the air distance improve the isolation effect of high and low loads; the main contact and the auxiliary contact assembly 700 do not affect each other, which avoids the influence or damage to the auxiliary contact assembly 700 caused by the arc generated during the operation of the main contact. The safety and reliability of the use of the relay are improved and the service life of the relay is prolonged; by setting one or more lead-out rods 710 and auxiliary contacts installed on the lead-out rods 710, the number of auxiliary contacts can be adjusted according to the needs of users. and the matching method are selected to meet the needs of use; in addition, the auxiliary contact assembly 700 is arranged on the bottom plate 500 at the end of the sealing tube 400, which occupies a small area and does not increase the volume of the product, which improves the size of the relay to the general electrical The adaptability of the equipment and its simple structure are conducive to enhancing the market competitiveness of the product.
以上所述实施例的各技术特征可以进行任意的组合，为使描述简洁，未对上述实施例中的各个技术特征所有可能的组合都进行描述，然而，只要这些技术特征的组合不存在矛盾，都应当认为是本说明书记载的范围。The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity, all possible combinations of the technical features in the above-described embodiments are not described. However, as long as there is no contradiction between the combinations of these technical features, All should be regarded as the scope described in this specification.
以上所述实施例仅表达了本发明的几种实施方式，其描述较为具体和详细，但并不能因此而理解为对发明专利范围的限制。应当指出的是，对于本领域的普通技术人员来说，在不脱离本发明构思的前提下，还可以做出若干变形和改进，这些都属于本发明的保护范围。因此，本发明专利的保护范围应以所附权利要求为准。The above-mentioned embodiments only represent several embodiments of the present invention, and the descriptions thereof are specific and detailed, but should not be construed as a limitation on the scope of the invention patent. It should be pointed out that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can also be made, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention should be subject to the appended claims.
Claims (8)
- 一种带有可靠辅助触点的高容量继电器，其特征在于，包括：A high-capacity relay with reliable auxiliary contacts, characterized in that it includes:壳体，所述壳体的顶部穿设有进线静触头与出线静触头，所述进线静触头用于由外部电源装置接入电流，所述出线静触头用于向外部电气设备传输电流，所述壳体的底部设有导磁块；A shell, the top of the shell is provided with an incoming line static contact and an outgoing line static contact, the incoming line static contact is used for receiving current from an external power supply device, and the outgoing line static contact is used for external The electrical equipment transmits current, and the bottom of the casing is provided with a magnetic conductive block;推杆组件，包括推杆以及与所述推杆弹性连接的动触头，所述动触头收容于所述壳体的内腔并可沿所述壳体的高度方向相对于所述壳体的内壁移动，以通断所述进线静触头与所述出线静触头；A push rod assembly, comprising a push rod and a movable contact elastically connected with the push rod, the movable contact is accommodated in the inner cavity of the casing and can be relative to the casing along the height direction of the casing The inner wall moves to switch on and off the incoming static contact and the outgoing static contact;密封管，所述密封管的顶端与所述导磁块相连接，所述密封管内收容有动铁芯，所述动铁芯与所述推杆相连接，所述密封管的末端设有用于封堵所述密封管的底板，所述底板与所述动铁芯之间形成监测室；以及A sealing tube, the top of the sealing tube is connected with the magnetic conductive block, the sealing tube accommodates a moving iron core, the moving iron core is connected with the push rod, and the end of the sealing tube is provided with a The bottom plate of the sealing tube is blocked, and a monitoring chamber is formed between the bottom plate and the moving iron core; and辅助触点组件，包括穿设所述底板并与所述底板连接的至少一组引出杆，每组所述引出杆包括m根引出杆，m为2或3，当m＝2时，每组所述引出杆中的一个引出杆上位于所述监测室的一端设置有辅助静簧片，每组所述引出杆中的另一个引出杆上位于所述监测室的一端设置有与所述辅助静簧片配合的辅助动簧片；当m＝3时，每组所述引出杆中的中间引出杆上位于所述监测室的一端设置有辅助动簧片，每组所述引出杆中的另外两个引出杆上位于所述监测室的一端分别设有与所述辅助动簧片配合的辅助静簧片；Auxiliary contact assembly, including at least one group of lead-out rods passing through and connected to the bottom plate, each group of said lead-out rods includes m lead-out rods, m is 2 or 3, when m=2, each group of lead-out rods An auxiliary static reed is arranged on one end of one of the lead-out rods located in the monitoring chamber, and the other end of the lead-out rod in each group of the lead-out rods located in the monitoring chamber is provided with an auxiliary static reed. The auxiliary movable reed matched with the static reed; when m=3, an auxiliary movable reed is provided on the end of the middle extraction rod in each group of the extraction rods located in the monitoring chamber, and the auxiliary movable reed is arranged in the middle extraction rod of each group The other two lead-out rods are respectively provided with auxiliary static reeds matched with the auxiliary moving reeds at one end located in the monitoring chamber;所述动铁芯在所述密封管内移动时带动所述推杆组件运动以通断所述进线静触头与所述出线静触头，并挤压或者放开所述辅助动簧片以通断所述辅助动簧片与所述辅助静簧片。When the moving iron core moves in the sealing tube, the push rod assembly is moved to connect and disconnect the incoming line static contact and the outgoing line static contact, and squeeze or release the auxiliary moving reed to The auxiliary moving reed and the auxiliary static reed are turned on and off.
- 根据权利要求1所述的高容量继电器，其特征在于，当m＝2时，所述辅助静簧片与所述辅助动簧片常开配合或常闭配合。The high-capacity relay according to claim 1, wherein when m=2, the auxiliary static reed is normally open or normally closed with the auxiliary moving reed.
- 根据权利要求1所述的高容量继电器，其特征在于，所述引出杆与所述底板连接处通过玻璃烧结方式相固定。The high-capacity relay according to claim 1, wherein the connection between the lead-out rod and the bottom plate is fixed by glass sintering.
- 根据权利要求1所述的高容量继电器，其特征在于，所述底板上设置有陶瓷块，所述引出杆与所述底板连接处通过陶瓷钎焊方式相固定。The high-capacity relay according to claim 1, wherein a ceramic block is arranged on the bottom plate, and the connection between the lead-out rod and the bottom plate is fixed by ceramic brazing.
- 根据权利要求4所述的高容量继电器，其特征在于，所述陶瓷块与所述引出杆之间以及所述陶瓷块与所述底板之间分别设置一过渡件并经高温钎焊方 式相固定，所述过渡件材料为纯铜或者可伐合金。The high-capacity relay according to claim 4, wherein a transition piece is respectively provided between the ceramic block and the lead-out rod and between the ceramic block and the bottom plate and is fixed by high temperature brazing , the transition piece material is pure copper or Kovar alloy.
- 根据权利要求1至5任一项所述的高容量继电器，其特征在于，所述底板与所述密封管通过激光焊接或者电阻焊密封连接。The high-capacity relay according to any one of claims 1 to 5, wherein the bottom plate and the sealing tube are hermetically connected by laser welding or resistance welding.
- 根据权利要求6所述的高容量继电器，其特征在于，所述辅助动簧片与所述辅助静簧片的接触部为相互配合的一对凸点或铆接的触片或触点。The high-capacity relay according to claim 6, wherein the contact portion of the auxiliary moving reed and the auxiliary static reed is a pair of bumps or riveted contact pieces or contacts that cooperate with each other.
- 根据权利要求7所述的高容量继电器，其特征在于，所述壳体包括陶瓷罩壳以及与所述陶瓷罩壳的开口部位高温钎焊连接的过渡块，所述导磁块安装于所述过渡块的外表面底部。The high-capacity relay according to claim 7, wherein the housing comprises a ceramic cover and a transition block connected to the opening of the ceramic cover by high-temperature brazing, and the magnetic conductive block is mounted on the Bottom of the outer surface of the transition block.
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| WO2023217963A1 (en) * | 2022-05-12 | 2023-11-16 | Tdk Electronics Ag | Switch device with main contacts and at least two auxiliary contacts |
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| JP2006179349A (en) * | 2004-12-22 | 2006-07-06 | Matsushita Electric Works Ltd | Electromagnetic relay |
| CN205428834U (en) * | 2016-03-17 | 2016-08-03 | 尼普顿电器（昆山）有限公司 | Take high -voltage direct -current relay of auxiliary switch device |
| CN108447739A (en) * | 2018-03-23 | 2018-08-24 | 浙江瑞光新能源科技有限公司 | Ceramic package high-voltage DC contactor with auxiliary contact |
| CN110211844A (en) * | 2019-05-21 | 2019-09-06 | 厦门宏发电力电器有限公司 | A kind of high voltage direct current relay with auxiliary contact |
| CN209729832U (en) * | 2019-06-23 | 2019-12-03 | 长沙中坤电气科技股份有限公司 | A kind of high voltage direct current relay with auxiliary contact |
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| KR102537548B1 (en) * | 2018-01-22 | 2023-05-26 | 엘에스일렉트릭(주) | DC Relay with Auxiliary Contact |
| CN208478254U (en) * | 2018-06-27 | 2019-02-05 | 深圳巴斯巴汽车电子有限公司 | High voltage direct current relay with auxiliary contact |
| CN213988746U (en) * | 2020-11-03 | 2021-08-17 | 苏州芯脉智能电子科技有限公司 | High-capacity relay with reliable auxiliary contacts |
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| JP2006179349A (en) * | 2004-12-22 | 2006-07-06 | Matsushita Electric Works Ltd | Electromagnetic relay |
| CN205428834U (en) * | 2016-03-17 | 2016-08-03 | 尼普顿电器（昆山）有限公司 | Take high -voltage direct -current relay of auxiliary switch device |
| CN108447739A (en) * | 2018-03-23 | 2018-08-24 | 浙江瑞光新能源科技有限公司 | Ceramic package high-voltage DC contactor with auxiliary contact |
| CN110211844A (en) * | 2019-05-21 | 2019-09-06 | 厦门宏发电力电器有限公司 | A kind of high voltage direct current relay with auxiliary contact |
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