WO2021249056A1 - 继电器 - Google Patents

继电器 Download PDF

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Publication number
WO2021249056A1
WO2021249056A1 PCT/CN2021/090547 CN2021090547W WO2021249056A1 WO 2021249056 A1 WO2021249056 A1 WO 2021249056A1 CN 2021090547 W CN2021090547 W CN 2021090547W WO 2021249056 A1 WO2021249056 A1 WO 2021249056A1
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WO
WIPO (PCT)
Prior art keywords
contact
auxiliary
relay
housing
contacts
Prior art date
Application number
PCT/CN2021/090547
Other languages
English (en)
French (fr)
Inventor
姚保同
汪鲁建
刘斯源
Original Assignee
比亚迪股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 比亚迪股份有限公司 filed Critical 比亚迪股份有限公司
Priority to JP2022574114A priority Critical patent/JP7488916B2/ja
Priority to US18/009,262 priority patent/US20230230789A1/en
Priority to KR1020227042403A priority patent/KR20230004865A/ko
Priority to EP21822143.0A priority patent/EP4141903A4/en
Publication of WO2021249056A1 publication Critical patent/WO2021249056A1/zh

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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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/54—Contact arrangements
    • H01H50/546—Contact arrangements for contactors having bridging contacts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/02—Bases; Casings; Covers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/08—Indicators; Distinguishing marks
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/0066—Auxiliary contact devices
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
    • H01H1/14—Contacts characterised by the manner in which co-operating contacts engage by abutting
    • H01H1/20—Bridging contacts
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/54—Contact arrangements
    • H01H50/56—Contact spring sets
    • H01H50/58—Driving arrangements structurally associated therewith; Mounting of driving arrangements on armature
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
    • H01H9/44—Means for extinguishing or preventing arc between current-carrying parts using blow-out magnet
    • H01H9/443—Means for extinguishing or preventing arc between current-carrying parts using blow-out magnet using permanent magnets

Definitions

  • the utility model relates to the technical field of relays, in particular to a relay.
  • relays with auxiliary contacts mainly conduct low-voltage sampling signals on the auxiliary contacts, and monitor the on-off state of the high-voltage main contacts by monitoring the on-off state of the low-voltage auxiliary contacts to understand whether the main contacts are normally on. Whether it is closed, non-conducting or contact sintering occurs.
  • an object of the present disclosure is to provide a relay that has higher safety in use.
  • a relay includes: a housing, a contact assembly, and an auxiliary contact assembly.
  • the contact assembly includes a moving contact, a static contact, and a moving contact bridge.
  • the moving contact bridge is driven to move towards or away from the stationary contact;
  • the auxiliary contact assembly includes: an auxiliary contact bridge and an auxiliary contact, at least part of the auxiliary contact extends into the housing, and the auxiliary contact
  • the contact bridge moves synchronously with the movable contact bridge to be selectively electrically connected with the auxiliary contact;
  • the housing includes: a top surface and a stepped portion, the top surface and the stepped portion are in the movable contact
  • the bridges or the auxiliary contact bridges are spaced apart in the moving direction, the static contacts are arranged on the top surface of the housing, and the part of the auxiliary contact located outside the housing is located on the step portion.
  • the part of the auxiliary contact located outside the housing is separated from the static contact.
  • an area of the housing between two adjacent fixed contacts is formed as a stepped portion, and the auxiliary contacts corresponding to the two adjacent fixed contacts All are arranged in the stepped part.
  • step portion is formed on the side wall of the housing, and the two auxiliary contacts corresponding to the two adjacent fixed contacts are provided on the same step portion.
  • the movable contact bridge is provided with a plurality of the movable contacts electrically connected to each other, and the plurality of the movable contacts are connected to the plurality of the static contacts.
  • the movable contact bridge can selectively move toward the stationary contact to make at least two of the plurality of stationary contacts conduct; there are multiple auxiliary contacts, and multiple The auxiliary contacts correspond to the plurality of static contacts one to one, and each of the auxiliary contacts protrudes from the housing and is arranged away from the static contacts.
  • the relay further includes: an arc extinguishing device, the arc extinguishing device is multiple, and each of the arc extinguishing devices is arranged outside the corresponding static contact and includes: a cover And a magnetic member, at least one of the two side walls facing each other of the cover body is provided with a magnetic member.
  • the relay further includes: a driving element connected to the movable contact bridge and adapted to drive the movable contact to move toward or away from the stationary contact.
  • a first armature is provided on the moving contact bridge, a second armature is provided in the housing groove of the housing, and the first armature and the second armature are suitable for connecting the moving contact When the corresponding static contact is turned on, it is magnetically attracted.
  • the driving member includes a fixing seat, an elastic member, and a driving rod.
  • One end of the elastic member is fixed on the fixing seat, and the other end of the elastic member pushes against the movable contact.
  • the driving rod is fixed on the fixed seat to push the fixed seat to move.
  • a fixing bracket the elastic member is arranged in the fixing bracket, the lower end of the fixing bracket is connected with the fixing seat, the upper end of the fixing bracket is provided with a guide groove, and the first armature A guide block matched with the guide groove is provided on it.
  • the fixing seat is configured as an insulating member.
  • Fig. 1 is a schematic cross-sectional view of a relay according to an embodiment of the present disclosure
  • Figure 2 is another schematic diagram of a relay according to an embodiment of the present disclosure
  • Fig. 3 is a schematic diagram of a housing of a relay according to an embodiment of the present disclosure
  • Fig. 4 is a schematic diagram of cooperation between the arc extinguishing device of the relay and the housing according to an embodiment of the present disclosure
  • Fig. 5 is a schematic diagram of the cooperation between the movable contact and the driving part of the relay according to an embodiment of the present disclosure
  • Fig. 6 is a schematic top view of an arc extinguishing device of a relay according to an embodiment of the present disclosure.
  • the relay body 10 The relay body 10, the static contact 11, the moving contact 12, the housing 13, the receiving groove 131, the step portion 132, the driving member 14, the fixing seat 141, the elastic member 142, the driving rod 143, the fixing bracket 15, the guide groove 151, Auxiliary contact 16, moving contact bridge 17, first armature 18, guide block 181,
  • the arc extinguishing device 20 the cover 21, the first end 211, the second end 212, the connecting portion 213, and the magnetic member 22.
  • a relay 100 includes: a housing 13, a contact assembly, and an auxiliary contact assembly.
  • the contact assembly includes a moving contact 12, a static contact 11 and a moving contact bridge 17, and the moving contact 12 is adapted to move toward or away from the static contact 11 under the driving of the moving contact bridge 17.
  • the auxiliary contact assembly includes: an auxiliary contact bridge (not shown in the figure) and an auxiliary contact 16. At least part of the auxiliary contact 16 extends into the housing 13, and the auxiliary contact bridge and the movable contact bridge 17 move synchronously to selectively It is electrically connected to the auxiliary contact 16.
  • the auxiliary contact bridge is adapted to move synchronously with the moving contact bridge 17 driven by the driving member 14. Therefore, when the moving contact 12 and the static contact 11 are electrically connected, the auxiliary contact bridge moves toward the auxiliary contact 16 synchronously, so that the auxiliary contact bridge and the auxiliary contact 16 are conducted.
  • the housing 13 includes: a top surface and a step portion 132, the top surface and the step portion 132 are spaced apart in the moving direction of the movable contact bridge 17 or the auxiliary contact bridge, and the stationary contact 11 is provided on the top of the housing 13.
  • the part of the auxiliary contact 16 located outside the housing 13 is located on the step portion 132.
  • the auxiliary contact bridge is electrically connected to the auxiliary contact 16, so that the auxiliary contact 16 is also conducting (low-voltage conduction), the contact assembly is broken, and the auxiliary contact The point components are also disconnected, and the connection state between the contact components can be judged by detecting the connection state between the auxiliary contacts 16.
  • the contact assembly When the contact assembly is worn out, it cannot be conducted normally (at the conducting position, but the movable contact bridge 17 cannot contact the static contact 11) and cannot be disconnected normally (the movable contact bridge 17 is sintered with the static contact 11 or the moving contact 12 is sintered).
  • the state of the contact assembly can be judged by the conduction of the auxiliary contact 16 and the conduction of the circuit where the auxiliary contact assembly is located.
  • the auxiliary contact 16 is located on the step portion 132, and the stationary contact 11 is located on the top surface of the housing 13, so that the two are spaced apart in the moving direction of the movable contact bridge 17 or the auxiliary contact bridge to ensure the relay In the working process of 100, the distance between the auxiliary contact 16 and the static contact 11 always meets the requirements of use, so as to avoid arcing between the two and avoid high and low voltage breakdown.
  • the auxiliary contact 16 is provided so that the part of the auxiliary contact 16 outside the housing 13 is separated from the stationary contact 11, which makes the detection of the working state of the contact assembly safer and more reliable. Under the premise, the high and low voltage breakdown between the auxiliary contact 16 and the static contact 11 can be avoided, and the working stability of the relay 100 can be improved.
  • the moving contact bridge 17 is provided with multiple moving contacts 12 electrically connected to each other,
  • the multiple moving contacts 12 correspond to the multiple static contacts 11 one-to-one, and the moving contact bridge 17 can selectively move toward the static contact 11 or away from the static contact 11 to make at least two of the multiple static contacts 11 Conduction;
  • the movable contact bridge 17 is adapted to drive the movable contact 12 to move toward the stationary contact 11, so that at least two of the plurality of stationary contacts 11 are electrically connected to each other through at least two of the plurality of movable contacts 12 Two are turned on (even if the high-voltage circuit where the moving contact 12 and the fixed contact 11 are located); the auxiliary contact 16 is arranged corresponding to the fixed contact 11, and the auxiliary contact 16 extends out of the housing 13 and is in the fixed contact
  • the detection circuit is a low-voltage circuit
  • the 16 interface realizes the detection of the high voltage circuit where the moving contact 12 and the static contact 11 are located.
  • the auxiliary contact 16 is provided and the auxiliary contact 16 is located outside the housing 13, which not only makes the detection of the working state of the high-voltage circuit where the fixed contact 11 and the movable contact 12 are located, is more It is safe and reliable, and the auxiliary contact 16 is located outside the housing 13, which makes the connection between the auxiliary contact 13 and the detection component simpler and more convenient, so that the detection of the working state of the relay 100 is simpler and more convenient.
  • the static contact 11 may be configured as a plurality of parallel connected in sequence, or may be configured as a plurality of connected in series.
  • the area of the housing 13 located between two adjacent fixed contacts 11 is formed as a stepped portion 132, and the auxiliary contacts 16 corresponding to the two adjacent fixed contacts 11 are all provided on the stepped portion.
  • the step portion 132 is spaced apart from the top surface of the housing 13 and is adjacent to the bottom surface of the housing 13.
  • the stepped portion 132 is formed on the side wall of the housing 13, the two auxiliary contacts 16 corresponding to the two adjacent fixed contacts 11 are provided on the same stepped portion 132, and the upper end of each fixed contact 11 is convex. From the upper end surface of the corresponding cover 21, each auxiliary contact 16 is disposed in the corresponding step portion 132, and the step portion 132 is spaced from the top surface of the housing 13 in the height direction.
  • each arc extinguishing device 20 is arranged on the outside of the corresponding static contact 11 and includes a cover 21 and a magnetic member 22, and the cover 21 is facing each other. At least one of the two side walls is provided with a magnetic member 22.
  • an arc extinguishing device 20 is provided outside each static contact 11, and the arc generated when the movable contact 12 and the static contact 11 are separated can be extinguished by the corresponding arc extinguishing device 20.
  • arc is a kind of gas discharge phenomenon, which has certain hazards to electrical appliances.
  • Arc extinguishing refers to the action of the magnetic field force of the magnetic field of the arc extinguishing device 20 to lengthen the arc so as to extinguish the arc so as to solve the influence of the arc in the electrical appliance.
  • the arc is a DC arc
  • the static volt-ampere characteristics will move up and the arc can be extinguished
  • the arc is an AC arc
  • a magnetic member 22 is provided on at least one of the two side walls of the cover 21 facing each other, and the magnetic member 22 is located between the side walls of the cover 21 facing each other, which can generate a magnetic field in the cover 21 and move the contact.
  • the arc generated when 12 is separated from the static contact 11 is pulled away from the moving contact 12 and the static contact 11 under the action of the magnetic field force to lengthen the arc and accelerate the arc extinguishing, and improve the arc extinguishing effect of the relay 100 .
  • the cover 21 includes a first end 211, a second end 212, and a connecting portion 213 connecting the first end 211 and the second end 212.
  • the side wall of the first end 211 and the first end 211 The side walls of the two end portions 212 are opposite to each other.
  • the side wall of the first end portion 211 is provided with a magnetic member 22, which is located between the first end portion 211 and the second end portion 212, and the magnetic member 22 faces away from the second end portion 212
  • One side of the side wall is in contact with the first end 211, so that the second end 212 has a polarity different from the polarity of the magnetic member 22 toward the second end 212.
  • the side of the magnetic member 22 facing the second end 212 is the N pole
  • the side of the magnetic member 22 in contact with the first end 211 is the S pole
  • the second end 212 forms the S pole.
  • the cover 21 The magnetic field is formed inside the magnetic field from the magnetic element 22 toward the second end 212.
  • the static contact 11 is located in the magnetic field. When the moving contact 12 is separated from the static contact 11, the generated arc will be pulled by the force of the magnetic field. Long, accelerated arc extinguishing.
  • cover 21 is provided with only one magnetic element 22 as an embodiment of the present disclosure, and the magnetic elements 22 are provided at both ends of the cover 21 to increase the magnetic field strength.
  • two magnetic members 22 are respectively disposed on the sidewalls of the first end 211 and the second end 212 opposite to each other.
  • the polarities of the opposite sides of the two magnetic members 22 are different. Since only one magnetic member 22 is provided, the strength of the magnetic field in the cover 21 is improved.
  • the cover body 21 has a magnetizing effect. The cover body 21 is combined with the magnetic member 22 to further increase the intensity of the magnetic field in the cover body 21 and improve the arc extinguishing effect of the arc extinguishing device 20.
  • the directions of the currents of the two electrical connection static contacts 11 are inflow and outflow respectively.
  • the magnetic lines of induction formed between the two magnetic parts 22 in the two arc extinguishing devices 20 have the same direction, so that the two arc extinguishing devices 20 generate
  • the direction of the magnetic field force exerted by the arcs depart from each other, so that the two arcs move in opposite directions, elongate the arc and quickly extinguish the arc, and at the same time make the relay 100 non-polar, which improves the safety and adaptability of use.
  • the directions of the magnetic lines of induction formed between the two magnetic members 22 in the plurality of arc extinguishing devices 20 are the same.
  • the current directions of the two static contacts 11 connected by the movable contact 12 are opposite, and when a current is generated in the two static contacts 11, the magnetic fields where the two are located respectively generate magnetic fluxes of equal magnitude and opposite directions.
  • the arcs generated on the two static contacts 11 move in opposite directions under the action of the magnetic flux force, so as to effectively avoid the arc connecting arc phenomenon, and make the cutting effect of the relay 100 better, and improve the relay 100 The safety of use.
  • the relay body 10 further includes: a housing 13, at least part of the housing 13 is arranged on the outer periphery of the plurality of static contacts 11, and two adjacent ones are arranged on the housing 13 In the receiving groove 131 between the stationary contacts 11, at least part of the cover body 21 extends into the receiving groove 131 to be fixed on the housing 13.
  • the housing 13 is provided with a plurality of through holes, and each through hole is provided with a static contact 11, and the static contact 11 and the housing 13 are hermetically connected, and the two adjacent static contacts 11 A receiving groove 131 is provided between, so that the cover 21 of the arc extinguishing device 20 corresponding to each static contact 11 can extend into the receiving groove 131, thereby improving the fixing effect of the arc extinguishing device 20 on the housing 13 and The structure of the relay 100 is more reasonable, and the arc extinguishing effect of the multiple arc extinguishing devices 20 fixed on the housing 13 is more stable and reliable.
  • a plurality of air flow cavities communicated with each other are formed in the housing 13 correspondingly, gas can circulate in the multiple air flow cavities, but the electrically ablated metal substance is isolated in the housing 13 Outside the body 13, the insulation and withstand voltage performance of the relay 100 after the electrical life, short-circuit and other destruction tests of metal materials are improved, and the distance between two adjacent static contacts 11 is further increased through the containing groove 131. Increasing the creepage distance can improve the arc extinguishing effect in one embodiment.
  • the plurality of static contacts 11 includes: a positive static contact and a negative static contact, a cover 21 located outside the positive static contact and a cover 21 located outside the negative static contact are arranged in close contact, and The two adjacent side walls are arranged in the receiving groove 131.
  • the cover 21 of the adjacent positive static contact and the negative static contact are jointly arranged in a receiving groove 131.
  • the number of slots on the housing 13 can be reduced. , So that the production cost of the shell 13 is lower, and the structural strength of the shell 13 is higher; The fixing effect of the arc device 20 in the receiving groove 131.
  • the relay body 10 further includes a driving member 14, the movable contact 12 and the static contact 11 are disposed oppositely and spaced apart, and the driving member 14 is connected with the movable contact 12 and is suitable for driving the movable contact 12 toward or Move away from the static contact 11.
  • the housing 13 defines a sealed cavity, and at least part of the movable contact 12 and the driving member 14 are arranged in the sealed cavity.
  • the movable contact 12 and the static contact 11 are spaced apart in the initial state to maintain a certain electrical There is a gap, and the movable contact 12 can move toward or away from the static contact 11 under the drive of the driving member 14, so that the on-off control of the relay 100 is simpler and more convenient.
  • the relay 100 includes: a first armature 18 and a second armature, the first armature 18 is located on the side of the moving contact 12 away from the static contact 11, and the second armature is located on the moving contact 12 facing the static contact 11
  • the first armature 18 and the second armature are adapted to generate magnetic attraction when the moving contact 12 conducts the corresponding static contact 11 to press the moving contact 12 on the corresponding static contact 11.
  • the first armature 18 is located on the side of the moving contact 12 away from the static contact 11, and the second armature is located on the side of the moving contact 12 facing the static contact 11.
  • the first armature 18 and the second armature are suitable for moving contact Point 12 magnetically attracts when the corresponding static contact 11 is turned on, and pushes against the movable contact 12 through magnetic attraction to resist the repulsive force between the movable contact 12 and the static contact 11. In this way, the working stability of the relay 10 can be improved in one embodiment, and the conduction effect between the moving contact 12 and the static contact 11 can be better.
  • a first armature 18 is provided on the side of the moving contact 12 away from the static contact 11, and a second armature is provided in the receiving groove 131 of the housing 13, and the first armature 18 and the second armature are suitable for The movable contact 12 magnetically attracts when the corresponding static contact 11 is turned on.
  • the moving contact 12 is located between the first armature 18 and the second armature.
  • the first armature 18 and the second armature are magnetized, And the side of the first armature 18 and the second armature facing each other is magnetically opposite, generating a magnetic attraction force, which is formed as a force that pushes the movable contact 12 toward the stationary contact 11, thereby increasing the difference between the stationary contact 11 and the movable contact 12
  • the contact pressure between the two makes the contact stability of the movable contact 12 and the static contact 11 higher, and improves the working stability of the relay 100.
  • the side of the moving contact 12 away from the static contact 11 is provided with a first armature 18, and the receiving groove 131 is provided with a second armature" is only an embodiment of the present disclosure, and in other embodiments , The second armature may not be arranged in the receiving groove 131.
  • the driving member 14 includes a driving device and a driving rod 143.
  • the driving device drives the movable contact 12 to move toward or away from the stationary contact 11 by driving the driving rod 143.
  • the driving rod 143 sequentially passes through the first armature 18 and the movable contact plate 12.
  • the second armature so that the first armature 18 and the second armature are respectively located on both sides of the moving contact 12, when the moving contact 12 conducts the corresponding static contact 11, the first armature 18 and the second armature are magnetized , And the sides of the first armature 18 and the second armature facing each other are magnetically opposite, generating an attractive force, which is formed as a force that pushes the movable contact 12 toward the stationary contact 11, thereby increasing the stationary contact 11 and the movable contact 12 The contact pressure between.
  • the present disclosure does not limit the specific location of the first armature 18 and the second armature. As long as the first armature 18 and the second armature are located on both sides of the moving contact 12, the corresponding static contact can be achieved on the moving contact 12. When the point 11 is turned on, the contact pressure between the static contact 11 and the movable contact 12 is increased.
  • the driving member 14 includes a fixing seat 141, an elastic member 142, and a driving rod 143.
  • One end of the elastic member 142 is fixed on the fixing seat 141, and the other end of the elastic member 142 pushes against
  • the contact 12 and the driving rod 143 are fixed on the fixing base 141 to push the fixing base 141 to move. In this way, the driving effect of the driving member 14 is better, and when the movable contact 12 is controlled to be disconnected from the static contact 11, the response speed can be improved by the elastic member 142.
  • the fixing base 141 is configured as an insulating member. In this way, the driving rod 143 is prevented from being charged, and the working stability and use safety of the relay 100 are improved.
  • the relay body 10 further includes a fixing bracket 15, the elastic member 142 is arranged in the fixing bracket 15, the lower end of the fixing bracket 15 is connected with the fixing seat 141, the upper end of the fixing bracket 15 is provided with a guide groove 151, The armature 18 is provided with a guide block 181 that cooperates with the guide groove 151.
  • the movable contact 12 can stably contact the static contact 11 under the pushing action of the elastic member 142 and the magnetic attraction between the first armature 18 and the second armature, thereby improving the working stability of the relay 10.
  • the structure of the relay 100 of the present application will be described in an embodiment.
  • the stationary contact 11 is fixed to the housing 13 by brazing.
  • the housing 13 is provided with a receiving groove 131, which is used to fix the magnetic member 22 and the cover 21, and the magnetic member 22 is provided on opposite sides of the cover 21 ,
  • the magnetic circuit formed by the two magnetic parts 22 forms an arc extinguishing device 20, and each static contact 11 is correspondingly provided with an arc extinguishing device 20.
  • the contact position of the static contact 11 is relatively separated by a certain distance (electrical clearance), and a moving contact 12 is provided.
  • the movable contact 12 and the first armature 18 can also be riveted and fixed by stamping the bumps.
  • Both sides of the first armature 18 are turned outwards to wrap the moving contact 12, and the turned edges are pressed inward to be pressed and fixed with the moving contact 12.
  • the fixed bracket 15 is a stamped and formed part, the guide block 181 of the first armature 18 extends into the guide groove 151 of the fixed bracket 15, the driving rod 143 is formed by machining or cold heading, and the fixed bracket 15 and the driving rod 143 pass through the fixing seat 141
  • the fixing base 141 is constructed as an insulating member, and there is no direct contact with the fixing bracket 15, which plays a role of high and low voltage insulation.
  • the fixed bracket 15 and the fixed seat 141 are provided with an elastic member 142 in a fixed position.
  • the first armature 18 riveted with the movable contact 12 is clamped into the fixed bracket 15, and the two ends of the elastic member 142 are respectively pushed against
  • the first armature 18 and the movable contact 12 are fixed to the fixing bracket 15, and the guiding block 181 extending from the first armature 18 extends into the fixing bracket 15.
  • the first armature 18 can move up and down along the guide groove 151 to realize the conduction and disconnection between the static contact 11 and the movable contact 12 of the relay 100, which improves responding speed.
  • first feature and second feature may include one or more of these features.
  • first and second features are in direct contact, or that the first and second features are not in direct contact but through them. Another feature contact between.
  • the second feature of the first feature include the first feature directly above and diagonally above the second feature, or it simply means that the first feature is higher than The second feature.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Arc-Extinguishing Devices That Are Switches (AREA)

Abstract

一种继电器(100)包括：壳体(13)，触点组件包括：动触点(12)适于在动触桥(17)的带动下朝向或远离静触点(11)运动；辅助触点组件包括：辅助触点(16)的至少部分伸入壳体(13)内，辅助触桥与动触桥(17)同步运动以可选择地与辅助触点(16)电连接；其中壳体(13)包括：顶面和台阶部(132)，顶面与台阶部(132)在动触桥(17)或辅助触桥的运动方向上间隔开，静触点(11)设置在壳体(13)的顶面上，辅助触点(16)位于壳体(13)外的部分位于台阶部(132)上。

Description

继电器
相关申请的交叉引用
本申请要求比亚迪股份有限公司于2020年06月09日提交的、申请名称为“继电器”的、中国专利申请号“202021053107.X”的优先权。
技术领域
本实用新型涉及继电器技术领域，尤其是涉及一种继电器。
背景技术
相关技术中，带辅助触点的继电器主要是通过对辅助触点通低压采样信号，通过对低压辅助触点的通断状态监控高压主触点的通断状态，以了解主触点是否正常通断，是否出现闭合不导通或是触点烧结等故障现象。
目前市场上，常见的簧片结构的继电器，虽然结构简单，但辅助触点与主触点距离过近，当触点带载拉弧时有增加了主触点与辅助触点高低压击穿的风险。
实用新型内容
本公开旨在至少解决现有技术中存在的技术问题之一。为此，本公开的一个目的在于提出一种继电器，所述继电器的使用安全性更高。
根据本公开实施例的继电器包括：壳体、触点组件和辅助触点组件，所述触点组件包括；动触点、静触点和动触桥，所述动触点适于在所述动触桥的带动下朝向或远离所述静触点运动；所述辅助触点组件包括：辅助触桥和辅助触点，所述辅助触点的至少部分伸入所述壳体内，所述辅助触桥与所述动触桥同步运动以可选择地与所述辅助触点电连接；其中所述壳体包括：顶面和台阶部，所述顶面与所述台阶部在所述动触桥或所述辅助触桥的运动方向上间隔开，所述静触点设置在所述壳体的顶面上，所述辅助触点位于所述壳体外的部分位于所述台阶部上。
根据本公开实施例的继电器，通过设置辅助触点，使辅助触点位于壳体外的部分与静触点间隔开，在使触点组件的工作状态检测更加安全、可靠、方便的前提下，可以避免辅助触点与静触点之间出现高低压击穿，提高继电器的工作稳定性。
根据本公开的一些实施例，所述壳体位于相邻的两个所述静触点之间的区域形成为台阶部，与相邻的两个所述静触点对应的所述辅助触点均设置在所述台阶部内。
进一步地，所述台阶部形成在所述壳体的侧壁上，与相邻的两个所述静触点对应的两 个所述辅助触点设置于同一台阶部。
在一些实施例中，所述静触点为多个，所述动触桥上设置有多个相互电连接的所述动触点，多个所述动触点与多个所述静触点一一对应，且所述动触桥可选择地朝向所述静触点运动以使多个所述静触点中的至少两个导通；所述辅助触点为多个，多个所述辅助触点与多个所述静触点一一对应，每个所述辅助触点伸出所述壳体并远离所述静触点设置。
根据本公开的一些实施例，所述继电器还包括：灭弧装置，所述灭弧装置为多个，每个所述灭弧装置设置在对应的所述静触点的外侧且包括：罩体和磁性件，所述罩体彼此正对的两个侧壁中的至少一个上设置有磁性件。
进一步地，所述继电器还包括：驱动件，所述驱动件与所述动触桥连接且适于驱动所述动触点朝向或远离所述静触点运动。
可选地，所述动触桥上设置有第一衔铁，所述壳体的容纳槽内设置有第二衔铁，所述第一衔铁与所述第二衔铁适于在所述动触点将对应的所述静触点导通时磁性吸合。
在一些实施例中，所述驱动件包括：固定座、弹性件以及驱动杆，所述弹性件的一端固定在固定座上，所述弹性件的另一端推抵所述动触点，所述驱动杆固定在所述固定座上以推动所述固定座运动。
进一步地，还包括：固定支架，所述弹性件设置在所述固定支架内，所述固定支架的下端与所述固定座相连，所述固定支架的上端设置有导向槽，所述第一衔铁上设置有与所述导向槽配合的导向块。
进一步地，所述固定座构造为绝缘件。
本公开的附加方面和优点将在下面的描述中部分给出，部分将从下面的描述中变得明显，或通过本公开的实践了解到。
附图说明
本公开的上述和/或附加的方面和优点从结合下面附图对实施例的描述中将变得明显和容易理解，其中：
图1是根据本公开实施例的继电器的一个剖视示意图；
图2是根据本公开实施例的继电器的另一个示意图；
图3是根据本公开实施例的继电器的壳体的示意图；
图4是根据本公开实施例的继电器的灭弧装置与壳体的配合示意图；
图5是根据本公开实施例的继电器的动触点和驱动件的配合示意图；
图6是根据本公开实施例的继电器的灭弧装置的俯视示意图。
附图标记：
继电器100，
继电器本体10，静触点11，动触点12，壳体13，容纳槽131，台阶部132，驱动件14，固定座141，弹性件142，驱动杆143，固定支架15，导向槽151，辅助触点16，动触桥17，第一衔铁18，导向块181，
灭弧装置20，罩体21，第一端部211，第二端部212，连接部213，磁性件22。
具体实施方式
下面详细描述本公开的实施例，所述实施例的示例在附图中示出，其中自始至终相同或类似的标号表示相同或类似的元件或具有相同或类似功能的元件。下面通过参考附图描述的实施例是示例性的，仅用于解释本公开，而不能理解为对本公开的限制。
下面参考图1-图6描述根据本公开实施例的继电器100。
如图1和图2和图3所示，根据本公开实施例的继电器100包括：壳体13、触点组件和辅助触点组件。
其中，触点组件包括；动触点12、静触点11和动触桥17，动触点12适于在动触桥17的带动下朝向或远离静触点11运动。
辅助触点组件包括：辅助触桥(图中未示出)和辅助触点16，辅助触点16的至少部分伸入壳体13内，辅助触桥与动触桥17同步运动以可选择地与辅助触点16电连接。
具体而言，辅助触桥适于在驱动件14的带动下与动触桥17同步运动。由此，当动触点12与静触点11电连接时，辅助触桥同步朝向辅助触点16运动，以使辅助触桥与辅助触点16导通。
可以理解的是，壳体13包括：顶面和台阶部132，顶面与台阶部132在动触桥17或辅助触桥的运动方向上间隔开，静触点11设置在壳体13的顶面上，辅助触点16位于壳体13外的部分位于台阶部132上。
具体而言，触点组件位于导通位置时(高压导通)，辅助触桥与辅助触点16电连接，使得辅助触点16也导通(低压导通)，触点组件分断，辅助触点组件也分断，即可通过检测辅助触点16之间的连接状态来判断触点组件之间的连通状态。
在触点组件磨损，无法正常导通(位于导通位置，但是动触桥17无法与静触点11接触)和无法正常断开(动触桥17与静触点11烧结或者动触点12与静触点11之间拉弧)，可通过辅助触点16的导通情况以及辅助触点组件所在回路的导通情况来判断触点组件的状态。
进而，使辅助触点16位于台阶部132上，使静触点11位于壳体13的顶面上，以使两者在动触桥17或辅助触桥的运动方向上间隔开，以确保继电器100在工作过程中，辅助触 点16与静触点11之间的距离总是满足使用需求，以避免两者之间出现连弧，避免出现高低压击穿现象。
根据本公开实施例的继电器100，通过设置辅助触点16，使辅助触点16位于壳体13外的部分与静触点11间隔开，在使触点组件的工作状态检测更加安全、可靠的前提下，可以避免辅助触点16与静触点11之间出现高低压击穿，提高继电器100的工作稳定性。
根据本公开实施例的继电器100，其中静触点11为多个，多个静触11点均设置在壳体13上；动触桥17上设置有多个相互电连接的动触点12，多个动触点12与多个静触点11一一对应，且动触桥17可选择地朝向静触点11或远离静触点11运动以使多个静触点11中的至少两个导通；辅助触点16为多个，多个辅助触点16与多个静触点11一一对应，每个辅助触点16伸出壳体。
具体而言，动触桥17适于带动动触点12朝向静触点11运动，以通过彼此电连接的多个动触点12中的至少两个使多个静触点11中的至少两个被导通(即使动触点12和静触点11所在的高压电路导通)；辅助触点16与静触点11对应设置，辅助触点16伸出壳体13，且在静触点11与动触点12的高压电路导通时，与该静触点11对应的辅助触点16接入到检测电路(检测电路为低压电路)内，从而通过检测位于低压电路内的辅助触点16接口实现对动触点12和静触点11所在的高压电路的检测。
根据本公开实施例的继电器100，通过设置辅助触点16，并使辅助触点16位于壳体13外，不仅使对静触点11与动触点12所处的高压电路的工作状态检测更加安全、可靠，而且辅助触点16位于壳体13外，使辅助触点13与检测部件的连接更加简单、方便，以使继电器100的工作状态检测，更加简单、方便。
可以理解的是，静触点11可以构造为依次并联的多个，也可以构造为串联的多个。
如图4所示，壳体13位于相邻的两个静触点11之间的区域形成为台阶部132，与相邻的两个静触点11对应的辅助触点16均设置在台阶部132内，台阶部132与壳体13的顶面间隔开且邻近壳体13的底面。
换言之，台阶部132形成在壳体13的侧壁上，与相邻的两个静触点11对应的两个辅助触点16设置于同一台阶部132上，每个静触点11的上端凸出于对应的罩体21的上端面，每个辅助触点16设置在对应的台阶部132内，且台阶部132与壳体13的顶面在高度方向上间隔开。
这样，一方面，使静触点11的上端凸出罩体21的上端面，以使与静触点11电连接的周围部件与静触点11的电连接更加方便，在一个实施例中提高继电器100的工作稳定性，同时还可以降低继电器100的高度；另一方面，可以避免辅助触点16与静触点11之间出现连弧，避免高低压击穿，提高继电器100的工作稳定性以及使用安全性。如图1和图2 所示，灭弧装置20为多个，每个灭弧装置20设置在对应的静触点11的外侧且包括：罩体21和磁性件22，罩体21彼此正对的两个侧壁中的至少一个上设置有磁性件22。
也就是说，每个静触点11外均设置有一个灭弧装置20，动触点12和静触点11分离时产生的电弧可以通过对应的灭弧装置20进行灭弧。需要说明的是，电弧是一种气体放电现象，对电器具有一定的危害。灭弧是指，通过灭弧装置20的磁场的磁场力作用，拉长电弧，以使电弧熄灭，以解决电弧在电器中的影响。其中，如果电弧为直流电弧，拉长电弧后，静伏安特性上移，电弧可以熄灭；如果电弧为交流电弧，拉长电弧后，由于燃弧电压的提高，电弧重燃困难。
在罩体21彼此正对的两个侧壁中的至少一个上设置磁性件22，磁性件22位于罩体21彼此正对的侧壁之间，可以使罩体21内产生磁场，动触点12与静触点11分离时产生的电弧在磁场力的作用下，被拉向远离动触点12和静触点11的位置，以拉长电弧而加速灭弧，提高继电器100的灭弧效果。
在一种实施方式中，罩体21包括第一端部211、第二端部212以及连接第一端部211和第二端部212的连接部213，第一端部211的侧壁与第二端部212的侧壁正对，第一端部211的侧壁设置磁性件22，磁性件22位于第一端部211和第二端部212之间，磁性件22背离第二端部212侧壁的一侧与第一端部211接触，使得第二端部212形成与磁性件22朝向第二端部212的极性相异的极性。
例如，磁性件22朝向第二端部212的一侧为N极，磁性件22与第一端部211接触的一侧为S极，第二端部212形成S极的极性，罩体21内形成磁感线由磁性件22朝向第二端部212的磁场，静触点11位于该磁场内，当动触点12与静触点11分离，所产生的电弧将受磁场力而被拉长，加速灭弧。
应当理解的是，罩体21仅设置一个磁性件22为本公开的一种实施方式，在罩体21两端都设置磁性件22能够增加磁场强度。
在图6所示的实施例中，两磁性件22分别设置于第一端部211和第二端部212彼此相对的侧壁，两个磁性件22相对一侧的极性相异，相较于只设置一个磁性件22，提高了罩体21内的磁场强度。且罩体21具有聚磁效果，罩体21结合磁性件22进一步提升罩体21内的磁场强度，提高灭弧装置20的灭弧效果。
两个电连接静触点11的电流方向分别为流入和流出，两个灭弧装置20内的两个磁性件22之间形成的磁感线的方向相同，使两个灭弧装置20内产生的电弧所受磁场力作用方向背离彼此，以使两处的电弧朝向相反的方向运动，拉长电弧而快速灭弧，同时使继电器100无极性，提高了使用安全性和适配性。
如图6所示，根据本公开的一些实施例，多个灭弧装置20内的两个磁性件22之间形 成的磁感线的方向相同。由此，其中通过动触点12连接的两个静触点11的电流方向相反，进而当两个静触点11内产生电流后，两者所在的磁场分别产生大小相等且方向相反的磁通力，以使两个静触点11上产生的电弧分别在磁通力的作用下，朝向相反的方向运动，以有效地避免电弧出现连弧现象，并使继电器100的切断效果更好，提高继电器100的使用安全性。
如图3所示，在一些实施例中，继电器本体10还包括：壳体13，壳体13的至少部分设置在多个静触点11外周，壳体13上设置有位于相邻的两个静触点11之间的容纳槽131，罩体21的至少部分伸入容纳槽131内以固定在壳体13上。
换言之，壳体13上设置有多个通孔，每个通孔内均设置有一个静触点11，且静触点11与壳体13密封连接，进而在相邻的两个静触点11之间设置容纳槽131，以使每一个静触点11对应的灭弧装置20的罩体21可以伸入到容纳槽131内，从而提高灭弧装置20在壳体13上的固定效果，以使继电器100的结构更加合理，使固定在壳体13上的多个灭弧装置20的灭弧效果更加稳定、可靠。
此外，需要说明的是，通过设置容纳槽131，使壳体13内部对应形成多个彼此连通的气流腔，气体可以在多个气流腔之内流通，然而电烧蚀的金属物质被隔离在壳体13外，提高了继电器100经过电气寿命、短路等产生金属物质的破坏测试后的绝缘以及耐电压性能，同时通过容纳槽131使相邻的两个静触点11之间的距离更远，增加了爬电距离，可以在一个实施例中提高灭弧效果。
在一些实施例中，多个静触点11包括：正极静触点和负极静触点，位于正极静触点外的罩体21和位于负极静触点外的罩体21贴合设置，且两者相贴合的侧壁设置在容纳槽131内。
换言之，多个静触点11中，相邻的正极静触点与负极静触点的罩体21共同设置在一个容纳槽131内，这样，一方面，可以降低壳体13上的开槽数量，使壳体13的生产成本更低，壳体13的结构强度更高；另一方面，相邻的两个罩体21可以贴合设置在同一个容纳槽131内，可以提高相邻的灭弧装置20在容纳槽131内的固定效果。
如图5所示，继电器本体10还包括：驱动件14，动触点12与静触点11相对设置且间隔开，驱动件14与动触点12连接且适于带动动触点12朝向或远离静触点11运动。
具体而言，壳体13内部限定出密封腔，动触点12以及驱动件14的至少部分设置在密封腔内，动触点12与静触点11在初始状态下间隔开，维持一定的电气间隙，并使动触点12可以在驱动件14的带动下朝向或远离静触点11运动，以使继电器100的通断控制更加简单、方便。
在一个实施例中，继电器100包括：第一衔铁18和第二衔铁，第一衔铁18位于动触 点12背离静触点11的一侧，第二衔铁位于动触点12朝向静触点11的一侧，第一衔铁18与第二衔铁适于在动触点12将对应的静触点11导通时产生磁性吸力以将动触点12压紧在对应的静触点11上。
换言之，第一衔铁18位于动触点12背离静触点11的一侧，第二衔铁位于动触点12朝向静触点11的一侧，第一衔铁18与第二衔铁适于在动触点12将对应的静触点11导通时磁性吸合，通过磁性吸力推抵动触点12，以抵抗动触点12和静触点11之间的排斥力。这样，可以在一个实施例中提高继电器10的工作稳定性，使动触点12与静触点11之间的导通效果更好。
在一些实施例中，动触点12远离静触点11的一侧设置有第一衔铁18，壳体13的容纳槽131内设置有第二衔铁，第一衔铁18与第二衔铁适于在动触点12将对应的静触点11导通时磁性吸合。
具体而言，动触点12的至少部分位于第一衔铁18和第二衔铁之间，当动触点12将对应的静触点11导通时，第一衔铁18和第二衔铁被磁化，且第一衔铁18和第二衔铁朝向彼此的一侧磁性相反，产生磁性吸力，形成为推抵动触点12朝向静触点11运动的力，从而提高静触点11与动触点12之间的接触压力，使动触点12与静触点11的接触稳定性更高，提高继电器100的工作稳定性。
应当理解的是，“动触点12远离静触点11的一侧设有第一衔铁18，容纳槽131内设有第二衔铁”仅作为本公开的一种实施方式，在其他实施例中，第二衔铁也可以不设置于容纳槽131内。
例如，驱动件14包括驱动装置和驱动杆143，驱动装置通过驱动驱动杆143而带动动触点12朝向或远离静触点11运动，驱动杆143依次穿过第一衔铁18、动触板12、第二衔铁，使得第一衔铁18和第二衔铁分别位于动触点12的两侧，当动触点12将对应的静触点11导通时，第一衔铁18和第二衔铁被磁化，且第一衔铁18和第二衔铁朝向彼此的一侧磁性相反，产生吸合力，形成为推抵动触点12朝向静触点11运动的力，从而提高静触点11与动触点12之间的接触压力。
本公开对第一衔铁18和第二衔铁的具体设置位置不作限定，只要第一衔铁18和第二衔铁分别位于动触点12的两侧，即可实现在动触点12将对应的静触点11导通时提高静触点11和动触点12之间的接触压力。
在图5所示的具体的实施例中，驱动件14包括：固定座141、弹性件142以及驱动杆143，弹性件142的一端固定在固定座141上，弹性件142的另一端推抵动触点12，驱动杆143固定在固定座141上以推动固定座141运动。这样，使驱动件14的驱动效果更好，且控制动触点12与静触点11断开连接时，通过弹性件142可以提高响应速度。
在一个实施例中，固定座141构造为绝缘件。这样，避免驱动杆143带电，提高继电器100的工作稳定性以及使用安全性。
在一些实施例中，继电器本体10还包括：固定支架15，弹性件142设置在固定支架15内，固定支架15的下端与固定座141相连，固定支架15的上端设置有导向槽151，第一衔铁18上设置有与导向槽151配合的导向块181。
这样，动触点12可以在弹性件142的推抵作用以及第一衔铁18与第二衔铁之间的磁吸力作用下与静触点11稳定地接触，提高继电器10的工作稳定性。下面，对本申请的继电器100的结构进行在一个实施例中说明。
静触点11通过钎焊固定在壳体13上，壳体13上设置有容纳槽131，容纳槽131用于固定磁性件22和罩体21，罩体21的相对两侧设置有磁性件22，两个磁性件22形成的磁回路组成一个灭弧装置20，每个静触点11对应设置有一个灭弧装置20。
在壳体13内，静触点11接触位置相对隔离一定的距离(电气间隙)设置有动触点12，动触点12下表面设有冲压突点，用于与第一衔铁18固定，同时也可以通过冲压突点实现动触点12与第一衔铁18的铆接固定。
第一衔铁18两侧外翻以将动触点12包裹，翻边向内压紧以与动触点12压紧固定。固定支架15为冲压成型件，第一衔铁18的导向块181伸入到固定支架15的导向槽151内，驱动杆143通过机加工或冷镦成型，固定支架15与驱动杆143通过固定座141连接，固定座141构造为绝缘件，与固定支架15之间没有直接接触，起到高、低压绝缘的作用。
固定支架15与固定座141上设有弹性件142固定位，装入弹性件142后，将铆接了动触点12的第一衔铁18卡入固定支架15，弹性件142两端分别推抵在第一衔铁18的定位孔和固定座141的定位结构上，以将第一衔铁18和动触点12固定的固定支架15上，第一衔铁18伸出的导向块181伸入在固定支架15预留的导向槽151内，当继电器100工作时，第一衔铁18可以沿导向槽151上、下运动，实现继电器100静触点11和动触点12之间的导通和断开，提高响应速度。
在本公开的描述中，需要理解的是，术语“中心”、“纵向”、“横向”、“长度”、“宽度”、“厚度”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”、“内”、“外”、“顺时针”、“逆时针”、“轴向”、“径向”、“周向”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本公开和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本公开的限制。
在本公开的描述中，“第一特征”、“第二特征”可以包括一个或者更多个该特征。
在本公开的描述中，“多个”的含义是两个或两个以上。
在本公开的描述中，第一特征在第二特征“之上”或“之下”可以包括第一和第二特征直接接触，也可以包括第一和第二特征不是直接接触而是通过它们之间的另外的特征接触。
在本公开的描述中，第一特征在第二特征“之上”、“上方”和“上面”包括第一特征在第二特征正上方和斜上方，或仅仅表示第一特征水平高度高于第二特征。
在本说明书的描述中，参考术语“一个实施例”、“一些实施例”、“示意性实施例”、“示例”、“具体示例”、或“一些示例”等的描述意指结合该实施例或示例描述的具体特征、结构、材料或者特点包含于本公开的至少一个实施例或示例中。在本说明书中，对上述术语的示意性表述不一定指的是相同的实施例或示例。而且，描述的具体特征、结构、材料或者特点可以在任何的一个或多个实施例或示例中以合适的方式结合。
尽管已经示出和描述了本公开的实施例，本领域的普通技术人员可以理解：在不脱离本公开的原理和宗旨的情况下可以对这些实施例进行多种变化、修改、替换和变型，本公开的范围由权利要求及其等同物限定。

Claims (10)

  1. 一种继电器(100)，其特征在于，包括：
    壳体(13)；
    触点组件，所述触点组件包括；动触点(12)、静触点(11)和动触桥(17)，所述动触点(12)适于在所述动触桥(17)的带动下朝向或远离所述静触点(11)运动；
    辅助触点组件，所述辅助触点组件包括：辅助触桥和辅助触点(16)，所述辅助触点(16)的至少部分伸入所述壳体(13)内，所述辅助触桥与所述动触桥(17)同步运动以可选择地与辅助触点(16)电连接；其中
    所述壳体(13)包括：顶面和台阶部(132)，所述顶面与所述台阶部(132)在所述动触桥(17)或所述辅助触桥的运动方向上间隔开，所述静触点(11)设置在所述壳体(13)的顶面上，所述辅助触点(16)位于所述壳体(13)外的部分位于所述台阶部(132)上。
  2. 根据权利要求1所述的继电器(100)，其特征在于，所述壳体(13)位于相邻的两个所述静触点(11)之间的区域形成为台阶部(132)，与相邻的两个所述静触点(11)对应的所述辅助触点(16)均设置在所述台阶部(132)内。
  3. 根据权利要求2所述的继电器(100)，其特征在于，所述台阶部(132)形成在所述壳体(13)的侧壁上，与相邻的两个所述静触点(11)对应的两个所述辅助触点(16)设置于同一台阶部(132)。
  4. 根据权利要求1-3中任一项所述的继电器(100)，其特征在于，所述静触点(11)为多个，所述动触桥(17)上设置有多个相互电连接的所述动触点(12)，多个所述动触点(12)与多个所述静触点(11)一一对应，且所述动触桥(17)可选择地朝向所述静触点(11)运动以使多个所述静触点(11)中的至少两个导通；
    所述辅助触点(16)为多个，多个所述辅助触点(16)与多个所述静触点(11)一一对应，每个所述辅助触点(16)伸出所述壳体(13)并远离所述静触点(11)设置。
  5. 根据权利要求1-4中任一项所述的继电器(100)，其特征在于，还包括：灭弧装置(20)，所述灭弧装置(20)为多个，每个所述灭弧装置(20)设置在对应的所述静触点(11)的外侧且包括：罩体(21)和磁性件(22)，所述罩体(21)彼此正对的两个侧壁中的至少一个上设置有磁性件(22)。
  6. 根据权利要求1-5中任一项所述的继电器(100)，其特征在于，还包括：驱动件(14)，所述驱动件(14)与所述动触桥(17)连接且适于驱动所述动触点(12)朝向或远离所述静触点(11)运动。
  7. 根据权利要求6所述的继电器(100)，其特征在于，所述动触桥(17)上设置有第 一衔铁(18)，所述壳体(13)的容纳槽内设置有第二衔铁，所述第一衔铁(18)与所述第二衔铁适于在所述动触点(12)将对应的所述静触点(11)导通时磁性吸合。
  8. 根据权利要求6或7所述的继电器(100)，其特征在于，所述驱动件(14)包括：固定座(141)、弹性件(142)以及驱动杆(143)，所述弹性件(142)的一端固定在固定座(141)上，所述弹性件(142)的另一端推抵所述动触点(12)，所述驱动杆(143)固定在所述固定座(141)上以推动所述固定座(141)运动。
  9. 根据权利要求8所述的继电器(100)，其特征在于，还包括：固定支架(15)，所述弹性件(142)设置在所述固定支架(15)内，所述固定支架(15)的下端与所述固定座(141)相连，所述固定支架(15)的上端设置有导向槽(151)，所述第一衔铁(18)上设置有与所述导向槽(151)配合的导向块(181)。
  10. 根据权利要求8或9所述的继电器(100)，其特征在于，所述固定座(141)构造为绝缘件。
PCT/CN2021/090547 2020-06-09 2021-04-28 继电器 WO2021249056A1 (zh)

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