CN107204255B - A kind of relay - Google Patents
A kind of relay Download PDFInfo
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- CN107204255B CN107204255B CN201610156214.7A CN201610156214A CN107204255B CN 107204255 B CN107204255 B CN 107204255B CN 201610156214 A CN201610156214 A CN 201610156214A CN 107204255 B CN107204255 B CN 107204255B
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- auxiliary terminal
- drive shaft
- insulating boot
- auxiliary
- iron core
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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
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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
- H01H50/546—Contact arrangements for contactors having bridging contacts
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Sealing Devices (AREA)
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Abstract
For overcome existing relay happen occasionally the conducting when contact be not turned on, or the failure that contact is still bonded when the separation of contact, relay function is caused to fail, the problem of safety accident occurs, the present invention provides a kind of relays comprising insulating boot, two stationary contact bridges, dynamic touching bridge, drive shaft and driving mechanism；It wherein, further include auxiliary detection structure, the auxiliary detection structure includes the first auxiliary terminal and the second auxiliary terminal；First auxiliary terminal includes the exit being electrically connected to each other and elastic connecting contravention.Relay provided by the invention can quickly detect above-mentioned failure by the auxiliary detection line.
Description
Technical field
The present invention relates to relay fields.
Background technique
Existing relay generally comprises insulating boot, two stationary contact bridges, dynamic touching bridge, drive shaft and driving mechanism；It is described two
Stationary contact bridge is fixedly mounted on the insulating boot；The upper end of the drive shaft is protruded into the insulating boot, and the dynamic touching bridge passes through
Insulating element is fixedly mounted on the drive shaft upper end；The driving mechanism is mounted on the lower end of the drive shaft, for driving
The drive shaft drives the dynamic touching bridge movement, and described two stationary contact bridges and the dynamic touching bridge is made to be attracted or disconnect.It is above-mentioned quiet
Touching bridge and the point of dynamic touching bridge joint touching are known as contact, and the contact on stationary contact bridge is known as stationary contact, and the point on dynamic touching bridge is known as movable contact.
Driving mechanism is generally made of dynamic iron core, static iron core and coil, yoke, reset spring etc., quiet when coil is powered
Iron core generates electromagnetic attraction, and dynamic iron core drives drive shaft that the elastic force of reset spring is overcome to move upwards under electromagnetic attraction effect,
Drive shaft drives dynamic touching bridge to touch with the stationary contact bridge joint being fixed on insulating boot, relay conducting；When the coil is de-energized, static iron core produces
Raw electromagnetic attraction disappears, and reset spring drives drive shaft to move downward, and makes to touch bridge and the separation of stationary contact bridge, relay is not led
It is logical.
However, applicant has found during researching and developing and producing relay, existing relay happens occasionally relay should
The failure that contact is not turned on when conducting or contact is still bonded when the separation of contact, causes relay function to fail, and safety occurs
Accident.
Summary of the invention
For overcome existing relay happen occasionally the conducting when contact be not turned on or contact is still bonded when the separation of contact
Failure, the problem of leading to relay failure, safety accident occurs, the present invention provides a kind of relays.
The invention discloses a kind of relays, including insulating boot, two stationary contact bridges, dynamic touching bridge, drive shaft and driving mechanism；
Described two stationary contact bridges are fixedly mounted on the insulating boot；
The upper end of the drive shaft is protruded into the insulating boot, and the dynamic touching bridge is mounted on the driving by insulating element
Axis upper end；
The driving mechanism is mounted on the lower end of the drive shaft, for driving the drive shaft to drive the dynamic touching bridge fortune
It is dynamic, so that described two stationary contact bridges and the dynamic touching bridge is attracted or is disconnected；
It wherein, further include auxiliary detection structure, the auxiliary detection structure includes the first auxiliary terminal and the second auxiliary end
Son；
Second auxiliary terminal is connected on any part being electrically connected in driving mechanism with the drive shaft；
First auxiliary terminal includes the exit being electrically connected to each other and elastic connecting contravention, and the exit is arranged exhausted
The top of edge cover, the elastic connecting contravention are arranged in insulating boot；
An auxiliary terminal hole is equipped at the top of the insulating boot at the position of face drive shaft, first auxiliary terminal
Exit is sealingly mounted in the auxiliary terminal hole, and is stretched out outside the insulating boot out of described auxiliary terminal hole；
The elastic connecting contravention of first auxiliary terminal is elastic slice, and the top of the drive shaft is in the stationary contact bridge and dynamic touching
Bridge with the elastic slice contacts electrical connection when being attracted, to realize being electrically connected for first auxiliary terminal and second auxiliary terminal
It connects；The top of the drive shaft is separated when the stationary contact bridge is disconnected with dynamic touching bridge with the elastic slice, to realize that described first is auxiliary
Help the separated electrical connection of terminal and second auxiliary terminal.
Relay provided by the invention, increases auxiliary detection structure on the basis of existing relay, by when use
One auxiliary terminal and the second auxiliary terminal connect with external auxiliary detection line, when relay is attracted, the first auxiliary terminal
Elastic slice and drive shaft top Elastic Contact, when relay disconnect when, the elastic slice of the first auxiliary terminal is separated with drive shaft top,
In this way, when contact is not turned on when there is the relay conducting or contact is still bonded when the separation of contact failure, Ke Yitong
It crosses the auxiliary detection line and quickly detects above-mentioned failure, to take timely measure, prevent as caused by relay failure
The generation of safety accident.
Preferably, first auxiliary terminal is an integral structure or split type structure, the exit are that column leads core.
Preferably, the material of first auxiliary terminal is copper or stainless steel.
Preferably, the material of first auxiliary terminal is copper.
Preferably, the exit of first auxiliary terminal is by sealant sealing in the auxiliary terminal hole.
Preferably, metalization layer is coated on the inner wall in the auxiliary terminal hole；The exit of first auxiliary terminal is logical
Silver-copper brazing alloy sealing welding is crossed in the auxiliary terminal hole.
Preferably, the insulation cover outer surface, which is located at two stationary contact bridge central symmetry line positions, is equipped with avoiding hollow groove；It is described auxiliary
Terminal hole is helped to be located in the avoiding hollow groove；
The insulation cover inner surface is equipped with barricade outstanding, is formed in the barricade and communicates with the auxiliary terminal hole
Concave hole；The elastic connecting contravention is located in the concave hole.
Preferably, the insulating element includes upper insulating boot and lower insulating boot, and the upper insulating boot and lower insulating boot combine
It covers in the drive shaft upper end, the dynamic touching bridge is insulated in the drive shaft upper end.
Preferably, the driving mechanism include upper yoke, static iron core, dynamic iron core, sleeve, reset spring, buffer spring and
Coil；
The upper yoke Tie Tong crosses connected unit and connect with the insulating boot；It is empty that closing is formed between upper yoke and insulating boot
Between；The center position of the upper yoke is equipped with axis hole；
The lower end of the drive shaft is stretched out from the axis hole of the upper yoke center position, and the static iron core, which covers, to be stretched out
The drive shaft top of the upper yoke, the dynamic iron core are fixedly mounted on the lower end of the drive shaft；
The reset spring is sleeved in the drive shaft between the static iron core and dynamic iron core；
The buffer spring covers in the drive shaft in the enclosure space between the upper yoke and the insulating boot, thereon
Lower insulating boot is supported at end, and a buffer gasket is supported in lower end, and the lower end of the buffer gasket is limited by a circlip；
The sleeve is sleeved on outside the static iron core and dynamic iron core, and the upper end opening and upper yoke weld；
The coil is mounted on outside the sleeve below the upper yoke.
Preferably, second auxiliary terminal is connected on yoke or sleeve.
Preferably, the first auxiliary terminal deviates the line of centres setting of two stationary contact bridges.
Detailed description of the invention
Fig. 1 is the relay main view diagrammatic cross-section provided in the specific embodiment of the invention；
Fig. 2 is the relay side elevational cross-section schematic diagram provided in the specific embodiment of the invention；
Fig. 3 is the first auxiliary terminal stereoscopic schematic diagram provided in the specific embodiment of the invention；
Fig. 4 is the insulating boot main view diagrammatic cross-section provided in the specific embodiment of the invention；
Fig. 5 is enlarged diagram at A in Fig. 4；
Fig. 6 a is that the first auxiliary terminal provided in the specific embodiment of the invention is welded on the main view on the insulating boot
Diagrammatic cross-section；
Fig. 6 b is that the first auxiliary terminal provided in the specific embodiment of the invention is welded on the side view on the insulating boot
Diagrammatic cross-section；
Fig. 7 is enlarged diagram at B in Fig. 6 a；
Fig. 8 is the relay solid schematic diagram provided in the specific embodiment of the invention；
Fig. 9 is the main view diagrammatic cross-section under the relay attracting state provided in the specific embodiment of the invention；
Figure 10 is enlarged diagram at C in Fig. 9；
Figure 11 is the side elevational cross-section schematic diagram under the relay attracting state provided in the specific embodiment of the invention；
Figure 12 is enlarged diagram at D in Figure 11.
Wherein, 1, insulating boot；2, touching bridge is moved；3, stationary contact bridge；4, drive shaft；5, static iron core；6, dynamic iron core；7, sleeve；8,
Buffer spring；9, reset spring；10, connected unit；11, stationary contact hole；12, barricade；13, avoiding hollow groove；14, auxiliary terminal hole；15, interior
Shrinkage pool；L1, the first auxiliary terminal；L11, exit；L12, elastic connecting contravention；L2, the second auxiliary terminal；4a, top；41, under
Insulating boot；42, upper insulating boot；51, upper yoke；81, buffer gasket；82, circlip.
Specific embodiment
In order to which the technical problems, technical solutions and beneficial effects solved by the present invention is more clearly understood, below in conjunction with
Accompanying drawings and embodiments, the present invention will be described in further detail.It should be appreciated that specific embodiment described herein is only used
To explain the present invention, it is not intended to limit the present invention.
Embodiment
This example will carry out specific explanations explanation to relay provided by the invention, as shown in Figure 1 and Figure 2 comprising insulating boot
1, two stationary contact bridges 3, dynamic touching bridge 2, drive shaft 4 and driving mechanism；
Described two stationary contact bridges 3 are fixedly mounted on the insulating boot 1；
The upper end of the drive shaft 4 is protruded into the insulating boot 1, and the dynamic touching bridge 2 is mounted on described by insulating element
4 upper end of drive shaft；
The driving mechanism is mounted on the lower end of the drive shaft 4, for driving the drive shaft 4 to drive the dynamic touching bridge
2 movements make described two stationary contact bridges 3 be attracted or disconnect with the dynamic touching bridge 2；
The dynamic touching bridge 2 and stationary contact bridge 3 are known to the public, sheet metal with holes centered on the dynamic touching bridge 2, with
3 contact position of stationary contact bridge is known as movable contact, and after the upper end of drive shaft 4 is set with insulating element, dynamic touching bridge 2 is being mounted on the insulating element
On.Dynamic touching bridge 2, insulating element and drive shaft 4 are relatively fixed.The stationary contact bridge 3 is generally mounted on insulation by way of soldering
On cover 1, specifically, as shown in Figure 4, set on the top surface of insulating boot 1 there are two stationary contact bridge mounting hole, abbreviation stationary contact hole 11, on
Two stationary contact bridges 3 are stated i.e. by Welding in the stationary contact hole 11.The stationary contact bridge 3 include protrude into the inner end in insulating boot 1 and
The outer end of insulating boot 1 is stretched out, for contacting with dynamic touching bridge 2, contact position is known as stationary contact, then forms connection on outer end for inner end
Hole is used to connect with the conducting wire of external major loop (circuit that dynamic touching bridge 2, stationary contact bridge 3 and external high-tension circuit are formed), movable contact
The conducting and disconnection of major loop in relay are realized with being contacting and separating for stationary contact, the circuit that coil is formed is to control back
Road, the conducting of control loop and the conducting and disconnection for disconnecting control major loop.Above-mentioned movable contact and stationary contact are composition relay
The contact of device major loop, to distinguish it with the contact contacted subsequent first auxiliary terminal L1 and 4 top 4a of drive shaft, by this
Stationary contact and movable contact are classified as main contacts.
Wherein, the insulating boot 1 is known to the skilled person, and in this example, is made of ceramic materials, play with
The effect of outside isolation and insulation, is no longer introduced.
Wherein, the insulating element is used to make to touch bridge 2 and drive shaft 4 is dielectrically separated from, and can use known in the art
Insulating element, in this example, as preferred mode, as shown in Figure 1 and Figure 2, including upper insulating boot 42 and lower insulating boot 41, institute
41 groups of traps of insulating boot 42 and lower insulating boot are stated in 4 upper end of drive shaft, the dynamic touching bridge 2 is insulated in the drive
4 upper end of moving axis.Drive shaft 4 is isolated with dynamic touching bridge 2, stationary contact bridge 3 for upper insulating boot 42,41 structure of lower insulating boot, and then will height
Pressure insulation, avoids the damage of low-pressure end component and the generation of punch-through, to improve the quality and safety of product.
Wherein, the driving mechanism can use various structures well known by persons skilled in the art, in this example, such as Fig. 1, figure
Shown in 2, the driving mechanism includes upper yoke 51, static iron core 5, dynamic iron core 6, sleeve 7, reset spring 9, buffer spring 8 and line
Circle；
The upper yoke 51 is connect by connected unit 10 with the insulating boot 1；It is formed between upper yoke 51 and insulating boot 1
Enclosure space；The center position of the upper yoke 51 is equipped with axis hole；Due to the influence of material, upper yoke 51 cannot be welded directly
On insulating boot 1, therefore, the connection of upper yoke 51 and insulating boot 1 is realized by the connected unit 10.The connected unit 10 is metal material
Matter is made, and is pre-welded to 1 lower part of insulating boot, and upper yoke 51 is welded on again in the connected unit 10.
The lower end of the drive shaft 4 is stretched out from the axis hole of upper 51 center position of yoke, and 5 sets of the static iron core exists
4 top of drive shaft of the upper yoke 51 is stretched out, the dynamic iron core 6 is fixedly mounted on the lower end of the drive shaft 4；Namely driving
The upper end of axis 4 axis hole of yoke 51 on this is protruded into above-mentioned upper yoke 51 and insulating boot 1 and is formed in enclosure space.Specifically
Ground, the dynamic iron core 6 are fixed on the lower end of the drive shaft 4 by way of laser welding or threaded connection.
The reset spring 9 is sleeved in the drive shaft 4 between the static iron core 5 and dynamic iron core 6；Reset spring 9 is set
It sets between static iron core 5 and dynamic iron core 6, when the coil is energized, pressure when dynamic iron core 6 is moved upwards by the electromagnetic attraction of static iron core 5
Contract the reset spring 9, put aside elastic force, when the coil is de-energized, reset spring 9 resets under the action of elastic force, driving dynamic iron core 6 to
Lower movement.
Drive shaft 4 in 8 sets of the buffer spring enclosure spaces between the upper yoke 51 and the insulating boot 1
On, lower insulating boot 41 is supported in the upper end, and a buffer gasket 81 is supported in lower end, and the lower end of the buffer gasket 81 passes through a circlip
82 limits；Buffer gasket 81 can reduce the stress of circlip 82, prevent it from falling off.
The sleeve 7 is sleeved on outside the static iron core 5 and dynamic iron core 6, and the upper end opening and upper yoke 51 weld；
The coil (not shown) is mounted on outside the sleeve 7 of 51 lower section of upper yoke.
In this example, above-mentioned upper yoke 51, static iron core 5, dynamic iron core 6, sleeve 7 and drive shaft 4 are metal material, above-mentioned portion
Part is electrically connected, and for convenience of describing, is called core metal part.As another alternative, above-mentioned drive shaft 4 be can also be used
Part non electrically conductive material, but conducted for that can realize, conducting wire or other conductive components must be set thereon, driven with realizing
Moving axis 4 is electrically connected with yoke 51, static iron core 5, dynamic iron core 6, sleeve 7 etc..
It further include auxiliary detection structure in this example, on the relay, as shown in Figure 1, Figure 2, shown in Fig. 8；The auxiliary detection
Structure includes the first auxiliary terminal L1 and the second auxiliary terminal L2；
The second auxiliary terminal L2 is connected on any part being electrically connected in driving mechanism with the drive shaft 4；
As shown in figure 3, the first auxiliary terminal L1 includes being electrically connected to each other positioned at the exit L11 of upper end and lower end
Elastic connecting contravention L12, wherein the exit L11 be column lead core, the elastic connecting contravention of the first auxiliary terminal L1
L12 is elastic slice；As shown in Figure 4, Figure 5, an auxiliary terminal hole is equipped at the position of the 1 top face drive shaft 4 of insulating boot
14, as shown in Fig. 6 a, Fig. 6 b, Fig. 7, the exit L11 of the first auxiliary terminal L1 is sealingly mounted at the auxiliary terminal hole
In 14, and stretched out outside the insulating boot 1 out of described auxiliary terminal hole 14；The elastic connecting contravention of the first auxiliary terminal L1
L12 is located in insulating boot 1, and the top 4a Elastic Contact of the drive shaft 4 or separates, specifically, i.e., the top of the described drive shaft 4
End 4a contacts electrical connection with the elastic slice when the stationary contact bridge 3 is attracted with dynamic touching bridge 2, to realize the first auxiliary terminal L1
With the electrical connection of the second auxiliary terminal L2；The top 4a of the drive shaft 4 is when the stationary contact bridge 3 is disconnected with dynamic touching bridge 2
It is separated with the elastic slice, to realize the separated electrical connection of the first auxiliary terminal L1 and the second auxiliary terminal L2.
It is well known that drive shaft 4 is cylindrical structure, side is integrally in cylinder planar, and top 4a is configured to swollen
Swollen convex shape structure.First auxiliary terminal L1 and 4 top 4a of drive shaft are contacted the contact to be formed and be known as auxiliary contact.
In this way, the first auxiliary terminal L1 and the second auxiliary terminal L2 and external auxiliary are detected when using when relay
Route is connected, and makes external auxiliary detection line and the first auxiliary terminal L1, the second auxiliary terminal L2 and above-mentioned core metal
Part constitutes circuit, for difference major loop and control loop, referred to as auxiliary measure loop.
So-called auxiliary detection line is exactly power supply power supply, detects no current when auxiliary detection line disconnects, works as auxiliary
Circuit conduction detection has generation electric current.
Above-mentioned second auxiliary terminal L2 is connected on any part being electrically connected in driving mechanism with the drive shaft 4, is changed
Sentence is talked about, namely is connected on core metal part defined above, in this way, working as the top 4a and the first auxiliary terminal of drive shaft 4
It, will be so that forming access between the first auxiliary terminal L1, the second auxiliary terminal L2 and the core metal part when L1 connection.Obviously,
It welds second auxiliary terminal L2 in dynamic iron core 6, static iron core 5 and drive shaft 4 in sleeve 7 to have any problem, as preferred
Mode, the second auxiliary terminal L2 are connected on yoke 51 or sleeve 7.The welding of second auxiliary terminal L2 described in this example
On upper yoke 51.
Wherein, first auxiliary terminal L1 can be an integral structure, or split type structure；So-called split type knot
Structure refers to that it is respectively the exit L11 of the upper end of individual components and the elastic connecting contravention L12 welding of lower end or is connected using screw thread
It connects or any other fixed form obtains first auxiliary terminal L1；So-called integral structure refers to exit L11 and elasticity
Contact jaw L12 is integrally formed.
In this example, the elastic slice preferably uses split type, which is configured to zigzag, whole to use rectangular gold
It is formed after belonging to piece bending, the sheet metal upper end after bending is led core with column and connect, and lower end is used to the top 4a phase with drive shaft 4
Contact.It should be noted that the elasticity of the elastic slice cannot be excessive, if excessive, it would be possible to influence the service life of elastic slice, finally
Influence the service life of entire relay.Generally, the elastic force of the elastic slice is less than 1/10th of reset spring 9.In this way, using should
Spring can make the connection Elastic Contact between the first auxiliary terminal L1 and drive shaft 4.The elastic slice with a thickness of 0.1-
0.3mm。
Above-mentioned second auxiliary terminal L2 is without especially limiting its shape or structure, as long as it is able to achieve and above-mentioned core gold
Belong to part electrical connection, and is suitble to connect with external auxiliary detection line.In this example, second auxiliary terminal L2 leads for metal
Line, such as copper conductor (or copper core).
It about the material of first auxiliary terminal L1, is not specially limited, the first auxiliary terminal L1 is used as conductivity detection, only
Need conductive energy, hardness and elastic no requirement (NR).Material can be with the common conductive metal such as copper, steel, aluminium, copper alloy.One
As conducted electricity very well using fine copper, resistivity is low.
For example, the material of the first auxiliary terminal L1 is copper, stainless steel.In this example, the first auxiliary terminal L1's
Material is copper.Specifically, obtaining column using copper conductor (or copper core) production leads core, made to obtain elastic slice of copper sheet.Its
In, it is 0.5-2 millimeters that column, which leads the diameter of core, in this example.
About the sealing mounting means of first auxiliary terminal L1, it is not particularly limited, it can be using glue envelope or pricker
The mode etc. of weldering.
For example, the exit L11 of the first auxiliary terminal L1 is by sealant sealing in the auxiliary terminal hole 14.
Sealant can be epoxy resin etc..
For another example, metalization layer can also be coated on the inner wall in the auxiliary terminal hole 14 by the way of soldering；It is described
The exit L11 of first auxiliary terminal L1 is by silver-copper brazing alloy sealing welding in the auxiliary terminal hole 14.So-called metal
Change layer and refer generally to nickel plating or other metal or alloy materials in auxiliary terminal hole 14, in this example, which is nickel.
Using this kind of mode, sealing performance is more preferable, and high temperature resistant.
As preferred mode, 1 outer surface of insulating boot, which is located at two stationary contact bridges, 3 central symmetry line position, is equipped with empty avoiding
Slot 13；The auxiliary terminal hole 14 is located in the avoiding hollow groove 13；The avoiding hollow groove 13 is set, can be effectively increased outside insulating boot 1
Between two stationary contact bridge 3 of portion and the creepage distance between stationary contact bridge 3 and the first auxiliary terminal L1, make to assist detection structure more
Safety.
1 inner surface of insulating boot is equipped with barricade 12 outstanding, is formed with and the auxiliary terminal in the barricade 12
The concave hole 15 that hole 14 communicates；The elastic connecting contravention L12 is located in the concave hole 15.Pass through the barricade 12 and concave hole
15, it can effectively increase and climb electricity between 1 two stationary contact bridges 3 of inside of insulating boot and between stationary contact bridge 3 and the first auxiliary terminal L1
Distance, while the splash situation of the conducting for leading to main contacts and auxiliary contact of copper scale occurs when preventing arcing, guarantees relay
Assist the accuracy and safety of measure loop.
Further, the first auxiliary terminal L1 can be made to deviate the line of centres setting of two stationary contact bridges 3, i.e., at auxiliary end
It when sub-aperture 14 (and first auxiliary terminal L1) is located in the avoiding hollow groove 13, further limits, by auxiliary terminal hole 14 (and
One auxiliary terminal L1) be positioned away from stationary contact bridge 3 the line of centres position at, in this way, the first auxiliary end can be further increased
Creepage distance between sub- L1 and two stationary contact bridge 3.
The relay installation process is as follows: being first welded on the first auxiliary terminal L1, stationary contact bridge 3 and connected unit 10 absolutely
On edge cover 1, then successively by 4 fit on insulating boot 42 of drive shaft, dynamic touching bridge 2, lower insulating boot 41, buffer spring 8, finally assemble
Buffer gasket 81, then it is fixed with circlip 82；Then yoke 51 is successively loaded onto drive shaft 4, static iron core 5, reset spring 9, is moved
Iron core 6 and sleeve 7, dynamic iron core 6 is fixed with drive shaft 4 by way of laser welding or screw thread, it is prepared equipped with drive
The driving mechanism of moving axis 4.Then sleeve 7 is welded on upper 51 lower part of yoke, then the insulating boot 1 welded and driving will be assembled
The driving mechanism and connected unit 10 of axis 4 are welded.The second auxiliary terminal L2 is welded on upper yoke 51.Finally in 7 exterior wiring of sleeve
The relay that circle, shell (not shown) etc., i.e. acquisition this example provide.
The relay course of work is described as follows: by the first auxiliary terminal L1 and the second auxiliary terminal L2 with it is external auxiliary
It helps detection route to be connected, makes external auxiliary detection line and the first auxiliary terminal L1, the second auxiliary terminal L2 and above-mentioned core
Body metalwork constitutes auxiliary measure loop；State as shown in Figure 1 and Figure 2, when the coil is not energized, dynamic touching bridge 2 and stationary contact bridge 3 are divided
From relay is not turned on, while 4 top 4a of drive shaft is separated with the elastic slice on the first auxiliary terminal L1, and auxiliary detection line is visited
It measures drive shaft 4 and the first auxiliary terminal L1 to be not turned on, it was demonstrated that relay does not turn on.As shown in Fig. 9, Figure 10, Figure 11, Figure 12,
When the stationary contact bridge 3 that coil is powered, and driving dynamic iron core 6 drives fixed drive shaft 4 to drive dynamic touching bridge 2 and be fixed on insulating boot 1
When contact product ON operation, moves touching bridge 2 and stationary contact bridge 3 contacts, relay work, while 4 top 4a of drive shaft and the
Elastic slice Elastic Contact on one auxiliary terminal L1, auxiliary detection line detects the drive shaft 4 and the first auxiliary terminal L1 at this time
Conducting, it was demonstrated that relay work.
The relay that this example provides, increases auxiliary detection structure on the basis of existing relay, by first when use
Auxiliary terminal L1 and the second auxiliary terminal L2 connect with external auxiliary detection line, when relay is attracted, the first auxiliary end
The elastic slice and 4 top 4a Elastic Contact of drive shaft of sub- L1, when relay disconnects, the elastic slice and drive shaft of the first auxiliary terminal L1
4 top 4a separation, in this way, contact is not turned on when there is the relay conducting or contact is still bonded when the separation of contact
When failure, above-mentioned failure can be quickly detected by the auxiliary detection line to be prevented to take timely measure due to relay
The generation of safety accident caused by device fails.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (10)
1. a kind of relay, including insulating boot, two stationary contact bridges, dynamic touching bridge, drive shaft and driving mechanism；Described two stationary contact bridges
It is fixedly mounted on the insulating boot；
The upper end of the drive shaft is protruded into the insulating boot, and the dynamic touching bridge is mounted in the drive shaft by insulating element
End；
The driving mechanism is mounted on the lower end of the drive shaft, for driving the drive shaft to drive the dynamic touching bridge movement,
Described two stationary contact bridges and the dynamic touching bridge are made to be attracted or disconnect；
It is characterized in that, further including auxiliary detection structure, the auxiliary detection structure includes the first auxiliary terminal and the second auxiliary
Terminal；
Second auxiliary terminal is connected on any part being electrically connected in driving mechanism with the drive shaft；
First auxiliary terminal includes the exit being electrically connected to each other and elastic connecting contravention, and the exit is arranged in insulating boot
Top, the elastic connecting contravention is arranged in insulating boot；
An auxiliary terminal hole, the extraction of first auxiliary terminal are equipped at the top of the insulating boot at the position of face drive shaft
End is sealingly mounted in the auxiliary terminal hole, and is stretched out outside the insulating boot out of described auxiliary terminal hole；
The elastic connecting contravention of first auxiliary terminal is elastic slice, and the top of the drive shaft is inhaled in the stationary contact bridge and dynamic touching bridge
Electrical connection is contacted with the elastic slice when conjunction, to realize the electrical connection of first auxiliary terminal and second auxiliary terminal；Institute
The top for stating drive shaft is separated when the stationary contact bridge is disconnected with dynamic touching bridge with the elastic slice, to realize first auxiliary terminal
With the separated electrical connection of second auxiliary terminal.
2. relay according to claim 1, which is characterized in that first auxiliary terminal is an integral structure or fission
Formula structure, the exit are that column leads core.
3. relay according to claim 2, which is characterized in that the material of first auxiliary terminal is copper or stainless
Steel.
4. relay according to claim 1, which is characterized in that the exit of first auxiliary terminal passes through sealant
It is encapsulated in the auxiliary terminal hole.
5. relay according to claim 1, which is characterized in that be coated with metallization on the inner wall in the auxiliary terminal hole
Layer；The exit of first auxiliary terminal is by silver-copper brazing alloy sealing welding in the auxiliary terminal hole.
6. relay according to claim 1, which is characterized in that the insulation cover outer surface is located at two stationary contact bridge centers pair
Claim to be equipped with avoiding hollow groove at line position；The auxiliary terminal hole is located in the avoiding hollow groove；
The insulation cover inner surface is equipped with barricade outstanding, is formed in communicating with the auxiliary terminal hole in the barricade
Shrinkage pool；The elastic connecting contravention is located in the concave hole.
7. relay according to claim 1, which is characterized in that the insulating element includes upper insulating boot and lower insulation
The dynamic touching bridge is insulated in the drive by cover, the upper insulating boot and lower insulating boot group trap in the drive shaft upper end
Moving axis upper end.
8. relay according to claim 7, which is characterized in that the driving mechanism includes upper yoke, static iron core, dynamic iron
Core, sleeve, reset spring, buffer spring and coil；
The upper yoke Tie Tong crosses connected unit and connect with the insulating boot；Enclosure space is formed between upper yoke and insulating boot；Institute
The center position for stating yoke is equipped with axis hole；
The lower end of the drive shaft is stretched out from the axis hole of the upper yoke center position, and the static iron core covers described in the stretching
The drive shaft top of upper yoke, the dynamic iron core are fixedly mounted on the lower end of the drive shaft；
The reset spring is sleeved in the drive shaft between the static iron core and dynamic iron core；
The buffer spring covers in the drive shaft in the enclosure space between the upper yoke and the insulating boot, and the upper end is supported
Lower insulating boot is pushed up, a buffer gasket is supported in lower end, and the lower end of the buffer gasket is limited by a circlip；
The sleeve is sleeved on outside the static iron core and dynamic iron core, and the upper end opening and upper yoke weld；
The coil is mounted on outside the sleeve below the upper yoke.
9. relay according to claim 8, which is characterized in that second auxiliary terminal is connected to yoke or set
On cylinder.
10. relay according to claim 6, which is characterized in that the first auxiliary terminal deviates the center of two stationary contact bridges
Line setting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610156214.7A CN107204255B (en) | 2016-03-18 | 2016-03-18 | A kind of relay |
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| CN201610156214.7A CN107204255B (en) | 2016-03-18 | 2016-03-18 | A kind of relay |
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| CN107204255A CN107204255A (en) | 2017-09-26 |
| CN107204255B true CN107204255B (en) | 2019-04-19 |
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| CN115249600A (en) * | 2021-04-27 | 2022-10-28 | 比亚迪股份有限公司 | Relay with a movable contact |
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| CN1956113A (en) * | 2005-10-27 | 2007-05-02 | 诠欣股份有限公司 | Terminal matching structure with self-cleaning function |
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| CN104520958A (en) * | 2012-04-27 | 2015-04-15 | 富士电机机器制御株式会社 | Electromagnetic switch and adjustment method for contact position thereof |
| CN204497155U (en) * | 2014-12-25 | 2015-07-22 | 比亚迪股份有限公司 | A kind of relay pushing mechanism and relay |
| CN104810207A (en) * | 2014-01-27 | 2015-07-29 | Ls产电株式会社 | Electromagnetic relay |
| CN104867785A (en) * | 2015-05-11 | 2015-08-26 | 温州大学 | Permanent magnetic contactor with breaking protection device |
| CN105244204A (en) * | 2014-06-25 | 2016-01-13 | 泰连德国有限公司 | Switching arrangement |
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| US2449221A (en) * | 1942-10-24 | 1948-09-14 | Trumbull Electric Mfg Co | Electromagnetically controlled switch |
| JPH01206531A (en) * | 1988-02-12 | 1989-08-18 | Fuji Electric Co Ltd | Contact consumption detecting device for electromagnetic contactor |
| CN1956113A (en) * | 2005-10-27 | 2007-05-02 | 诠欣股份有限公司 | Terminal matching structure with self-cleaning function |
| CN201877368U (en) * | 2010-10-29 | 2011-06-22 | 无锡市闽仙汽车电器有限公司 | Electromagnetic switch of starter |
| CN104520958A (en) * | 2012-04-27 | 2015-04-15 | 富士电机机器制御株式会社 | Electromagnetic switch and adjustment method for contact position thereof |
| CN104810207A (en) * | 2014-01-27 | 2015-07-29 | Ls产电株式会社 | Electromagnetic relay |
| CN105244204A (en) * | 2014-06-25 | 2016-01-13 | 泰连德国有限公司 | Switching arrangement |
| CN204497155U (en) * | 2014-12-25 | 2015-07-22 | 比亚迪股份有限公司 | A kind of relay pushing mechanism and relay |
| CN104867785A (en) * | 2015-05-11 | 2015-08-26 | 温州大学 | Permanent magnetic contactor with breaking protection device |
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| CN107204255A (en) | 2017-09-26 |
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