CN107204255A - A kind of relay - Google Patents
A kind of relay Download PDFInfo
- Publication number
- CN107204255A CN107204255A CN201610156214.7A CN201610156214A CN107204255A CN 107204255 A CN107204255 A CN 107204255A CN 201610156214 A CN201610156214 A CN 201610156214A CN 107204255 A CN107204255 A CN 107204255A
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- China
- Prior art keywords
- auxiliary terminal
- drive shaft
- auxiliary
- insulating boot
- bridge
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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
-
- 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)
- Contacts (AREA)
- Sealing Devices (AREA)
Abstract
For overcome existing relay happen occasionally the conducting when contact be not turned on, or the failure that contact is still bonded during the separation of contact, relay function is caused to fail, the problem of generation security incident, the invention provides a kind of relay, it includes insulating boot, two stationary contact bridges, dynamic tactile bridge, drive shaft and drive mechanisms；Wherein, in addition to auxiliary detection structure, auxiliary detection structure includes the first auxiliary terminal and the second auxiliary terminal；First auxiliary terminal includes the exit and elastic connecting contravention being electrically connected to each other.The relay that the present invention is provided, can have above-mentioned failure by the auxiliary detection line road quick detection.
Description
Technical field
The present invention relates to relay field.
Background technology
Existing relay generally comprises insulating boot, two stationary contact bridges, dynamic tactile bridge, drive shaft and drive mechanisms；
Described two stationary contact bridges are fixedly mounted on the insulating boot；The insulating boot is stretched into the upper end of the drive shaft
Interior, the dynamic tactile bridge is fixedly mounted on the drive shaft upper end by insulating element；The drive mechanism is installed
In the lower end of the drive shaft, for driving the drive shaft to drive the dynamic tactile bridge motion, make described two
Stationary contact bridge and dynamic tactile the bridge adhesive or disconnection.Above-mentioned stationary contact bridge and the dynamic tactile point of bridge joint that touches are referred to as contact,
Contact on stationary contact bridge is referred to as stationary contact, and the point on dynamic tactile bridge is referred to as movable contact.
Drive mechanism is typically made up of dynamic iron core, static iron core and coil, yoke, back-moving spring etc., in coil
During energization, static iron core produces electromagnetic attraction, and dynamic iron core drives drive shaft to overcome reset under electromagnetic attraction effect
The elastic force of spring is moved upwards, and drive shaft drives dynamic tactile bridge and the stationary contact bridge joint being fixed on insulating boot to touch, after
Electrical equipment is turned on；When the coil is de-energized, the electromagnetic attraction that static iron core is produced disappears, and back-moving spring drives drive shaft
Move downward, make to touch bridge and the separation of stationary contact bridge, relay is not turned on.
However, applicant research and develop and produce relay during find, existing relay happen occasionally after
Contact is not turned on during the electrical equipment conducting, or the failure that contact is still bonded during the separation of contact, causes relay
Disabler, occurs security incident.
The content of the invention
For overcome existing relay happen occasionally the conducting when contact be not turned on, or contact is still during the separation of contact
The failure being so bonded, causes relay failure, the problem of occurring security incident, the invention provides one kind after
Electrical equipment.
The invention discloses a kind of relay, including insulating boot, two stationary contact bridges, dynamic tactile bridge, drive shaft and
Drive mechanism；
Described two stationary contact bridges are fixedly mounted on the insulating boot；
The upper end of the drive shaft is stretched into the insulating boot, and the dynamic tactile bridge is arranged on institute by insulating element
State drive shaft upper end；
The drive mechanism is arranged on the lower end of the drive shaft, described dynamic for driving the drive shaft to drive
Bridge motion is touched, makes described two stationary contact bridges and dynamic tactile the bridge adhesive or disconnection；
Wherein, in addition to auxiliary detection structure, auxiliary detection structure includes the first auxiliary terminal and second
Auxiliary terminal；
Second auxiliary terminal is connected on any part being electrically connected in drive mechanism with the drive shaft；
First auxiliary terminal includes the exit and elastic connecting contravention being electrically connected to each other, and the exit is set
Put at the top of insulating boot, the elastic connecting contravention is arranged in insulating boot；
An auxiliary terminal hole, first auxiliary are provided with position at the top of the insulating boot just to drive shaft
The exit of terminal is sealingly mounted in the auxiliary terminal hole, and stretches out described out of described auxiliary terminal hole
Outside insulating boot；
The elastic connecting contravention of first auxiliary terminal is shell fragment, and the top of the drive shaft is in the stationary contact bridge
Electrical connection is contacted with the shell fragment during with dynamic tactile bridge adhesive, to realize first auxiliary terminal and described second
The electrical connection of auxiliary terminal；Touched in the stationary contact bridge with dynamic when bridge disconnects and the bullet on the top of the drive shaft
Piece is separated, to realize the separated electrical connection of first auxiliary terminal and second auxiliary terminal.
The relay that the present invention is provided, auxiliary detection structure is added on the basis of existing relay, is used
When the first auxiliary terminal and the second auxiliary terminal are connected with external auxiliary detection line road, when relay adhesive
When, shell fragment and the drive shaft top Elastic Contact of the first auxiliary terminal, when relay disconnects, the first auxiliary
The shell fragment of terminal is separated with drive shaft top, in this way, contact is not turned on when there is the relay conducting, or
During the failure that contact is still bonded during the separation of contact, can be gone out by the auxiliary detection line road quick detection on
Failure is stated, to take measures in time, is prevented due to the generation of security incident caused by relay failure.
Preferably, first auxiliary terminal is integral type structure or split-type structural, and the exit is post
Shape 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 mounted in the auxiliary terminal hole by sealant sealing.
Preferably, it is coated with metal layer on the inwall in the auxiliary terminal hole；First auxiliary terminal draws
Go out end and pass through silver-copper brazing alloy sealing welding in the auxiliary terminal hole.
Preferably, the insulation cover outer surface, which is located at two stationary contact bridge Central Symmetry line positions, is provided with avoiding hollow groove；
The auxiliary terminal hole position is in the avoiding hollow groove；
It is formed with and the auxiliary terminal in barricade of the insulation cover inner surface provided with protrusion, the barricade
The inward recess that hole is communicated；The elastic connecting contravention is located in the inward recess.
Preferably, the insulating element includes upper insulating boot and lower insulating boot, the upper insulating boot and lower insulation
Cover combination is enclosed on the drive shaft upper end, by the dynamic tactile bridge insulating mounting in the drive shaft upper end.
Preferably, the drive mechanism include upper yoke, static iron core, dynamic iron core, sleeve, back-moving spring,
Buffer spring and coil；
The upper yoke Tie Tong crosses connected unit and is connected with the insulating boot；Envelope is formed between upper yoke and insulating boot
Close space；The center position of the upper yoke is provided with axis hole；
The lower end of the drive shaft is stretched out from the axis hole of the upper yoke center position, the static iron core set
The drive shaft top of yoke on described is being stretched out, the dynamic iron core is fixedly mounted on the lower end of the drive shaft；
The back-moving spring is sleeved in the drive shaft between the static iron core and dynamic iron core；
The buffer spring is enclosed on the drive shaft in the closing space between the upper yoke and the insulating boot
On, lower insulating boot is supported in its upper end, and a buffer gasket is supported in its lower end, and the lower end of the buffer gasket passes through
One jump ring is spacing；
The sleeve set is welded outside the static iron core and dynamic iron core at its upper end open with upper yoke；
The coil is arranged 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.
Brief description of the drawings
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 schematic perspective view 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 are that the first auxiliary terminal provided in the specific embodiment of the invention is welded on the insulating boot
Main view diagrammatic cross-section；
Fig. 6 b are that the first auxiliary terminal provided in the specific embodiment of the invention is welded on the insulating boot
Side elevational cross-section schematic diagram；
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 signal under the relay attracting state provided in the specific embodiment of the invention
Figure；
Figure 12 is enlarged diagram at D in Figure 11.
Wherein, 1, insulating boot；2nd, tactile bridge is moved；3rd, stationary contact bridge；4th, drive shaft；5th, static iron core；6、
Dynamic iron core；7th, sleeve；8th, buffer spring；9th, back-moving spring；10th, connected unit；11st, stationary contact hole；12、
Barricade；13rd, avoiding hollow groove；14th, auxiliary terminal hole；15th, inward recess；L1, the first auxiliary terminal；L11、
Exit；L12, elastic connecting contravention；L2, the second auxiliary terminal；4a, top；41st, lower insulating boot；42、
Upper insulating boot；51st, upper yoke；81st, buffer gasket；82nd, jump ring.
Embodiment
In order that technical problem solved by the invention, technical scheme and beneficial effect are more clearly understood, with
Lower combination drawings and Examples, the present invention will be described in further detail.It should be appreciated that described herein
Specific embodiment only to explain the present invention, be not intended to limit the present invention.
Embodiment
The relay provided the present invention is carried out specific explanations explanation by this example, as shown in Figure 1 and Figure 2, and it is wrapped
Include insulating boot 1, two stationary contact bridges 3, dynamic tactile bridge 2, drive shaft 4 and drive mechanisms；
Described two stationary contact bridges 3 are fixedly mounted on the insulating boot 1；
The upper end of the drive shaft 4 is stretched into the insulating boot 1, and the dynamic tactile bridge 2 is pacified by insulating element
Mounted in the upper end of drive shaft 4；
The drive mechanism is arranged on the lower end of the drive shaft 4, for driving the drive shaft 4 to drive institute
State tactile bridge 2 to move, make described two stationary contact bridges 3 and the dynamic tactile adhesive of bridge 2 or disconnection；
The dynamic tactile bridge 2 and stationary contact bridge 3 are known to the public, sheet with holes centered on the dynamic tactile bridge 2
Metal, it is referred to as after movable contact, the upper end suit insulating element of drive shaft 4 with the contact position of stationary contact bridge 3, moved
Bridge 2 is touched on the insulating element.Dynamic tactile bridge 2, insulating element and drive shaft 4 are relatively fixed.It is described
Stationary contact bridge 3 is general to be arranged on insulating boot 1 by way of soldering, specifically, as shown in Figure 4, absolutely
The top surface of edge cover 1 is provided with two stationary contact bridge mounting holes, abbreviation stationary contact hole 11, and above-mentioned two stationary contact bridge 3 is
By Welding in the stationary contact hole 11.The stationary contact bridge 3 includes stretching into the inner in insulating boot 1 and stretched out
The outer end of insulating boot 1, its inner is used to contact with dynamic tactile bridge 2, and contact position is referred to as on stationary contact, outer end then
Connecting hole is formed, for (dynamic to touch returning for bridge 2, stationary contact bridge 3 and the formation of external high-tension circuit with external major loop
Road) wire connect, being contacting and separating of movable contact and stationary contact realizes leading for major loop in relay
On and off is opened, and the loop of coil formation is control loop, and the conducting and disconnection of control loop control major loop
Conducting and disconnection.Above-mentioned movable contact and stationary contact be constitute relay major loop contact, for by its with it is rear
The contact of the continuous first auxiliary terminal L1 and top 4a of drive shaft 4 contacts is distinguished, and the stationary contact is touched with dynamic
Point is classified as main contacts.
Wherein, the insulating boot 1 is known to the skilled person, and in this example, it is made of ceramic materials,
It plays a part of being isolated from the outside and insulated, and no longer introduces.
Wherein, the insulating element is used for making to touch bridge 2 and drive shaft 4 is dielectrically separated from, and it can be using this
In insulating element known to field, this example, as preferred mode, as shown in Figure 1 and Figure 2, including it is upper absolutely
Edge cover 42 and lower insulating boot 41, upper insulating boot 42 and lower insulating boot 41 combination are enclosed on the drive shaft 4
Upper end, by the dynamic tactile insulating mounting of bridge 2 in the upper end of drive shaft 4.Upper insulating boot 42, lower insulating boot
Drive shaft 4 is isolated with dynamic tactile bridge 2, stationary contact bridge 3, and then high-low pressure is insulated by 41 structures, it is to avoid low pressure
The damage of end member device and the generation of punch-through, so as to improve the quality and security of product.
Wherein, the drive mechanism can be used in various structures well known by persons skilled in the art, this example,
As shown in Figure 1 and Figure 2, the drive mechanism include upper yoke 51, static iron core 5, dynamic iron core 6, sleeve 7,
Back-moving spring 9, buffer spring 8 and coil；
The upper yoke 51 is connected by connected unit 10 with the insulating boot 1；In upper yoke 51 and insulating boot
Closing space is formed between 1；The center position of the upper yoke 51 is provided with axis hole；Due to the influence of material,
Upper yoke 51 can not be directly welded on insulating boot 1, therefore, and upper yoke 51 is realized by the connected unit 10
With the connection of insulating boot 1.The connected unit 10 is made up of metal material, and it is pre-welded to the bottom of insulating boot 1,
Upper yoke 51 is welded in the connected unit 10 again.
The lower end of the drive shaft 4 is stretched out from the axis hole of the upper center position of yoke 51, the quiet iron
Core 5 is enclosed on the top of drive shaft 4 for stretching out the upper yoke 51, and the dynamic iron core 6 is fixedly mounted on the drive
The lower end of moving axis 4；Namely above-mentioned upper yoke 51 is stretched into the upper end of drive shaft 4 through the axis hole of yoke 51 on this
Formed between insulating boot 1 in closing space.Specifically, the dynamic iron core 6 passes through laser welding or spiral shell
The mode of line connection is fixed on the lower end of the drive shaft 4.
The back-moving spring 9 is sleeved in the drive shaft 4 between the static iron core 5 and dynamic iron core 6；It is multiple
Position spring 9 is arranged between static iron core 5 and dynamic iron core 6, and when the coil is energized, dynamic iron core 6 is by quiet iron
The electromagnetic attraction of core 5 compresses the back-moving spring 9 when moving upwards, put aside elastic force, when the coil is de-energized, resets
Spring 9 is resetted in the presence of elastic force, and driving dynamic iron core 6 is moved downward.
The buffer spring 8 is enclosed on the drive in the closing space between the upper yoke 51 and the insulating boot 1
On moving axis 4, lower insulating boot 41 is supported in its upper end, and a buffer gasket 81, the buffer gasket are supported in its lower end
81 lower end is spacing by a jump ring 82；Buffer gasket 81 can reduce the stress of jump ring 82, prevent it from taking off
Fall.
The sleeve 7 is sleeved on outside the static iron core 5 and dynamic iron core 6, with upper yoke 51 at its upper end open
Welding；
The coil (not shown) is arranged on outside the sleeve 7 of the lower section of upper yoke 51.
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 part is electrically connected, and for convenience of describing, is called core metal part.Substituted as another
Mode, above-mentioned drive shaft 4 can also use part non electrically conductive material, but be conducted for that can realize, its
It is upper that wire or other conductive components must be set, to realize drive shaft 4 and yoke 51, static iron core 5, dynamic iron
The electric connection of core 6, sleeve 7 etc..
Also include auxiliary detection structure in this example, on the relay, as shown in Figure 1, Figure 2, shown in Fig. 8；Institute
Stating auxiliary detection structure includes the first auxiliary terminal L1 and the second auxiliary terminal L2；
The second auxiliary terminal L2 is connected to any part being electrically connected in drive mechanism with the drive shaft 4
On；
As shown in figure 3, the first auxiliary terminal L1 includes the exit positioned at upper end being electrically connected to each other
The L11 and elastic connecting contravention L12 of lower end, wherein, the exit L11 is that column leads core, and described first is auxiliary
The elastic connecting contravention L12 for helping terminal L1 is shell fragment；As shown in Figure 4, Figure 5, at the top of insulating boot 1
It is described as shown in Fig. 6 a, Fig. 6 b, Fig. 7 just to being provided with an auxiliary terminal hole 14 at the position of drive shaft 4
First auxiliary terminal L1 exit L11 is sealingly mounted in the auxiliary terminal hole 14, and from described auxiliary
Help in terminal hole 14 and stretch out outside the insulating boot 1；The elastic connecting contravention L12 of the first auxiliary terminal L1
It is specifically, i.e., described with the top 4a Elastic Contacts of the drive shaft 4 or separating in insulating boot 1
The top 4a of drive shaft 4 contacts electrical connection when the stationary contact bridge 3 is with dynamic tactile 2 adhesive of bridge with the shell fragment,
To realize the first auxiliary terminal L1 and the second auxiliary terminal L2 electrical connection；The drive shaft 4
Top 4a separated when the stationary contact bridge 3 disconnects with dynamic tactile bridge 2 with the shell fragment, to realize described first
Auxiliary terminal L1 and the second auxiliary terminal L2 separated electrical connection.
It is well known that drive shaft 4 is the structure of cylindricality, its side is in integrally cylinder planar, its top 4a quilts
It is arranged to the convex shape structure of expansion.First auxiliary terminal L1 and the top 4a of drive shaft 4 are contacted what is formed
Contact is referred to as auxiliary contact.
In this way, when using during relay, by the first auxiliary terminal L1 and the second auxiliary terminal L2 with it is external
Auxiliary detection line road is connected, and makes external auxiliary detection line road and the first auxiliary terminal L1, the second auxiliary end
Sub- L2 and above-mentioned core metal part constitute loop, and for difference major loop and control loop, referred to as auxiliary is detected back
Road.
So-called auxiliary detection line road is exactly that power supply is powered, and no current is detected when auxiliary detection line road disconnects,
When auxiliary circuit conduction detection has generation electric current.
Above-mentioned second auxiliary terminal L2 is connected to any part being electrically connected in drive mechanism with the drive shaft 4
On, in other words, namely it is connected on core metal part defined above, in this way, when the top of drive shaft 4
When end 4a is connected with the first auxiliary terminal L1, the first auxiliary terminal L1, the second auxiliary terminal L2 will be caused
Path is formed between the core metal part.Obviously, dynamic iron core 6, static iron core 5 and drive in sleeve 7
Second auxiliary terminal L2 is welded on moving axis 4 to have any problem, and is used as preferred mode, second auxiliary terminal
L2 is connected on yoke 51 or sleeve 7.The second auxiliary terminal L2 is welded on yoke described in this example
On 51.
Wherein, first auxiliary terminal L1 can be integral type structure, or split-type structural；It is so-called
Split-type structural refer to its be respectively individual components upper end exit L11 and the elastic connecting contravention L12 of lower end
Welding obtains first auxiliary terminal L1 using threaded connection or other any fixed forms；So-called one
Body formula structure refers to exit L11 and elastic connecting contravention L12 is formed in one.
In this example, the shell fragment is preferred to use split type, and the shell fragment is configured to zigzag, and it is integrally used
Formed after square sheet metal bending, the sheet metal upper end after bending is led core with column and is connected, and its lower end is used for
It is in contact with the top 4a of drive shaft 4.It should be noted that the elasticity of the shell fragment can not be excessive, if mistake
Greatly, it would be possible to influence the service life of shell fragment, the service life of whole relay is finally influenceed.Typically, should
The elastic force of shell fragment is less than 1/10th of back-moving spring 9.In this way, using the spring, the first auxiliary can be made
Connection between terminal L1 and drive shaft 4 is Elastic Contact.The thickness of the shell fragment is 0.1-0.3mm.
Above-mentioned second auxiliary terminal L2 without especially limiting its shape or structure, as long as its can realize with it is above-mentioned
Core metal part is electrically connected, and is adapted to be connected with external auxiliary detection line road.In this example, this second
Auxiliary terminal L2 is plain conductor, such as copper conductor (or copper core).
On first auxiliary terminal L1 material, it is not specially limited, the first auxiliary terminal L1 is used as leading
Electro-detection, it is only necessary to conductive energy, hardness and elastic no requirement (NR).Material can with copper, steel, aluminium,
The conventional conducting metal such as copper alloy.General to be conducted electricity very well using fine copper, resistivity is low.
Such as, the material of the first auxiliary terminal L1 is copper, stainless steel.In this example, first auxiliary
Terminal L1 material is copper.Core is led specifically, being made using copper conductor (or copper core) and obtaining column, is adopted
Made of copper sheet and obtain shell fragment.Wherein, column leads a diameter of 0.5-2 millimeters of core in this example.
On first auxiliary terminal L1 sealing mounting means, it is not particularly limited, it can be using glue envelope
Or the mode of soldering etc..
Such as, the exit L11 of the first auxiliary terminal L1 is mounted in the auxiliary terminal hole by sealant sealing
In 14.Fluid sealant can be epoxy resin etc..
Again such as, it would however also be possible to employ be coated with metallization on the mode of soldering, the inwall in the auxiliary terminal hole 14
Layer；The exit L11 of the first auxiliary terminal L1 is by silver-copper brazing alloy sealing welding in the auxiliary terminal
In hole 14.So-called metal layer refers generally to nickel plating or other metals or conjunction in auxiliary terminal hole 14
In golden material, this example, the metal layer is nickel.Using this kind of mode, its sealing property is more preferable, and resistance to height
Temperature.
As preferred mode, the outer surface of insulating boot 1 is located at the Central Symmetry line position of two stationary contact bridge 3
Provided with avoiding hollow groove 13；The auxiliary terminal hole 14 is located in the avoiding hollow groove 13；The avoiding hollow groove 13 is set,
It can be effectively increased between two stationary contact bridges 3 of the outside of insulating boot 1, and the auxiliary terminal L1 of stationary contact bridge 3 and first
Between creep age distance, make auxiliary detect structure it is safer.
The inner surface of insulating boot 1 provided with prominent barricade 12, be formed with the barricade 12 with it is described auxiliary
Help the inward recess 15 that terminal hole 14 is communicated；The elastic connecting contravention L12 is located in the inward recess 15.It is logical
The barricade 12 and inward recess 15 are crossed, can be effectively increased between two stationary contact bridges 3 of the inside of insulating boot 1, Yi Jijing
The creep age distance between the auxiliary terminal L1 of bridge 3 and first is touched, while preventing copper scale splashing during arcing to cause master
The situation of the conducting of contact and auxiliary contact occurs, it is ensured that relay aids in the accuracy and safety of measure loop
Property.
Further, the line of centres that the first auxiliary terminal L1 can be made to deviate two stationary contact bridges 3 is set, i.e.,
When auxiliary terminal hole 14 (and first auxiliary terminal L1) is located in the avoiding hollow groove 13, further limit
System, auxiliary terminal hole 14 (and first auxiliary terminal L1) is positioned away from the line of centres of stationary contact bridge 3
At position, in this way, can further increase the creep age distance between the first auxiliary terminal L1 and two stationary contact bridges 3.
The relay installation process is as follows：First by the first auxiliary terminal L1, stationary contact bridge 3 and connected unit 10
It is welded on insulating boot 1, then successively by the fit on insulating boot 42 of drive shaft 4, dynamic tactile bridge 2, lower insulation
Cover 41, buffer spring 8, finally assembling buffer gasket 81, then fixed with jump ring 82；Then in drive shaft 4
On load onto yoke 51, static iron core 5, back-moving spring 9, dynamic iron core 6 and sleeve 7 successively, dynamic iron core 6 is led to
The mode for crossing laser welding or screw thread is fixed with drive shaft 4, prepares the driving machine equipped with drive shaft 4
Structure.Then sleeve 7 is welded on the upper bottom of yoke 51, then by the insulating boot 1 welded with assembling driving
The drive mechanism of axle 4 is welded with connected unit 10.The second auxiliary terminal L2 is welded on upper yoke 51.Finally exist
The exterior coil of sleeve 7, shell (not shown) etc., that is, obtain the relay that this example is provided.
The relay course of work is described as follows：By the first auxiliary terminal L1 and the second auxiliary terminal L2 with
External auxiliary detection line road is connected, and makes external auxiliary detection line road and the first auxiliary terminal L1, second
Auxiliary terminal L2 and above-mentioned core metal part constitute auxiliary measure loop；State as shown in Figure 1 and Figure 2, when
When coil is not powered on, dynamic tactile bridge 2 and stationary contact bridge 3 are separated, and relay is not turned on, while the top of drive shaft 4
4a is separated with the shell fragment on the first auxiliary terminal L1, and the auxiliary of drive shaft 4 and first is detected on auxiliary detection line road
Terminal L1 is not turned on, it was demonstrated that relay is not turned on.As shown in Fig. 9, Figure 10, Figure 11, Figure 12, work as line
Circle is powered, and driving dynamic iron core 6 drives the drive shaft 4 of fixation to drive dynamic tactile bridge 2 and be fixed on insulating boot 1
3 contact product ON operation of stationary contact bridge when, dynamic tactile bridge 2 and stationary contact bridge 3 are contacted, relay work,
Shell fragment Elastic Contact on the top 4a of drive shaft 4 and the first auxiliary terminal L1 simultaneously, now auxiliary detection line
Detect the drive shaft 4 and first auxiliary terminal L1 conductings in road, it was demonstrated that relay work.
The relay that this example is provided, adds auxiliary detection structure, when using on the basis of existing relay
First auxiliary terminal L1 and the second auxiliary terminal L2 are connected with external auxiliary detection line road, work as relay
During adhesive, the first auxiliary terminal L1 shell fragment and the top 4a Elastic Contacts of drive shaft 4, when relay disconnects
When, the first auxiliary terminal L1 shell fragment is separated with the top 4a of drive shaft 4, in this way, should when there is relay
Contact is not turned on during conducting, or during contact is still bonded during the separation of contact failure, can pass through the auxiliary
Detection circuit quick detection has above-mentioned failure, to take measures in time, prevents because relay failure causes
Security incident generation.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in this hair
Any modifications, equivalent substitutions and improvements made within bright spirit and principle etc., should be included in the present invention
Protection domain within.
Claims (11)
1. a kind of relay, including insulating boot, two stationary contact bridges, dynamic tactile bridge, drive shaft and drive mechanisms；
Described two stationary contact bridges are fixedly mounted on the insulating boot；
The upper end of the drive shaft is stretched into the insulating boot, and the dynamic tactile bridge is arranged on by insulating element
The drive shaft upper end；
The drive mechanism is arranged on the lower end of the drive shaft, described for driving the drive shaft to drive
Dynamic tactile bridge motion, makes described two stationary contact bridges and dynamic tactile the bridge adhesive or disconnection；
Characterized in that, also including auxiliary detection structure, the auxiliary detection structure includes the first auxiliary end
Son and the second auxiliary terminal；
Second auxiliary terminal is connected to any part being electrically connected in drive mechanism with the drive shaft
On；
First auxiliary terminal includes the exit and elastic connecting contravention being electrically connected to each other, the exit
The top of insulating boot is arranged on, the elastic connecting contravention is arranged in insulating boot；
An auxiliary terminal hole is provided with position at the top of the insulating boot just to drive shaft, described first is auxiliary
Help the exit of terminal to be sealingly mounted in the auxiliary terminal hole, and stretched out out of described auxiliary terminal hole
Outside the insulating boot；
The elastic connecting contravention of first auxiliary terminal is shell fragment, and the top of the drive shaft is in the stationary contact
Electrical connection is contacted with the shell fragment when bridge is with dynamic tactile bridge adhesive, to realize first auxiliary terminal and described
The electrical connection of second auxiliary terminal；The top of the drive shaft when the stationary contact bridge disconnects with dynamic tactile bridge with
The shell fragment separation, to realize that first auxiliary terminal and the separated of the second auxiliary terminal are electrically connected
Connect.
2. relay according to claim 1, it is characterised in that first auxiliary terminal is one
Body formula structure or split-type structural, the exit are that column leads core.
3. relay according to claim 2, it is characterised in that the material of first auxiliary terminal
Matter is copper or stainless steel.
4. relay according to claim 3, it is characterised in that the material of first auxiliary terminal
Matter is copper.
5. relay according to claim 1, it is characterised in that first auxiliary terminal draws
Go out end to be mounted in the auxiliary terminal hole by sealant sealing.
6. relay according to claim 1, it is characterised in that the inwall in the auxiliary terminal hole
On be coated with metal layer；The exit of first auxiliary terminal is by silver-copper brazing alloy sealing welding described
In auxiliary terminal hole.
7. relay according to claim 1, it is characterised in that the insulation cover outer surface is located at
Avoiding hollow groove is provided with two stationary contact bridge Central Symmetry line positions；The auxiliary terminal hole position is in the avoiding hollow groove；
It is formed with and the auxiliary end in barricade of the insulation cover inner surface provided with protrusion, the barricade
The inward recess that sub-aperture is communicated；The elastic connecting contravention is located in the inward recess.
8. relay according to claim 1, it is characterised in that the insulating element includes upper exhausted
Edge cover and lower insulating boot, the upper insulating boot and the combination of lower insulating boot are enclosed on the drive shaft upper end, by institute
State and touch bridge insulating mounting in the drive shaft upper end.
9. relay according to claim 8, it is characterised in that the drive mechanism includes upper yoke
Iron, static iron core, dynamic iron core, sleeve, back-moving spring, buffer spring and coil；
The upper yoke Tie Tong crosses connected unit and is connected with the insulating boot；Formed between upper yoke and insulating boot
Closing space；The center position of the upper yoke is provided with axis hole；
The lower end of the drive shaft is stretched out from the axis hole of the upper yoke center position, the static iron core
The drive shaft top for stretching out the upper yoke is enclosed on, the dynamic iron core is fixedly mounted under the drive shaft
End；
The back-moving spring is sleeved in the drive shaft between the static iron core and dynamic iron core；
The buffer spring is enclosed on the drive shaft in the closing space between the upper yoke and the insulating boot
On, lower insulating boot is supported in its upper end, and a buffer gasket is supported in its lower end, and the lower end of the buffer gasket leads to
Cross a jump ring spacing；
The sleeve set is welded outside the static iron core and dynamic iron core at its upper end open with upper yoke；
The coil is arranged on outside the sleeve below the upper yoke.
10. relay according to claim 9, it is characterised in that second auxiliary terminal connects
It is connected on yoke or sleeve.
11. relay according to claim 7, it is characterised in that the first auxiliary terminal deviates two
The line of centres of individual stationary contact bridge is set.
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| 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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| 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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| Publication Number | Publication Date |
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| CN107204255A true CN107204255A (en) | 2017-09-26 |
| CN107204255B CN107204255B (en) | 2019-04-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610156214.7A Active CN107204255B (en) | 2016-03-18 | 2016-03-18 | A kind of relay |
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| CN (1) | CN107204255B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022228346A1 (en) * | 2021-04-27 | 2022-11-03 | 比亚迪股份有限公司 | Relay |
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| CN107204255B (en) | 2019-04-19 |
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