CN208889583U - A kind of low-temperature-rise high-reliability relay - Google Patents
A kind of low-temperature-rise high-reliability relay Download PDFInfo
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- CN208889583U CN208889583U CN201821458816.9U CN201821458816U CN208889583U CN 208889583 U CN208889583 U CN 208889583U CN 201821458816 U CN201821458816 U CN 201821458816U CN 208889583 U CN208889583 U CN 208889583U
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Abstract
The utility model discloses a kind of low-temperature-rise high-reliability relay, including electromagnetic assembly, moved end component, static side component and armature component.Low-temperature-rise high-reliability relay, static terminal use inverted U-shaped, thus considerably increase the surface area of static terminal, carry the heat of switching generation because applying electric current and contact web so as to be effectively conducted, heat dissipation effect is significant, can be substantially reduced temperature rise.And hook may also help in movable contact spring and achieve the effect that the movable contact for making to occur slight melting welding and stationary contact are separated from each other.In coil blackout, in case of abnormal conditions, occur that slight melting welding occurs between movable contact and stationary contact, and the own resilient of movable contact spring is when being insufficient to allow movable contact and stationary contact to separate, it can be acted on by the elastic force of reset reed, the pulling force far from stationary contact direction is applied to movable contact spring by linking up with, so that the contact of slight melting welding be helped to disconnect, reduces the probability for leading to failure because of contact melted.
Description
Technical field
The utility model relates to relay, in particular to a kind of low-temperature-rise high-reliability relay.
Background technique
Since relay has unique electrical, physical characteristic, the high insulation resistance and on-state of off-state in control circuit
Low on-resistance so that other any electronic components can not in contrast, in addition relay standardization level is high, versatility
Well, the advantages that circuit can be simplified, so relay is widely used in space flight, aviation, Military Electronic Equipment, information industry and its people
In economic various electronic equipments.With science and technology rapid development, usage amount of the relay in programmed communication equipment also into
One step increases, so, how to guarantee the reliability of relay, meet the reliability of machine system, becomes focus concerned by people.
High-current relay, it is desirable that temperature control is at 85 DEG C in 150A.Existing high-current relay, sets on armature
There is movable contact spring, movable contact is provided on movable contact spring, movable contact and yoke is connected by copper litz wire, yoke and outlet terminal connect
It connects.When the logical upper certain voltage in electromagnetic coil both ends, dynamic and static contact closure, in input terminal, stationary contact, movable contact, copper braiding
Current path is formed between line, yoke, outlet terminal.Since electric current passes through yoke, the resistivity of yoke is high, along in yoke
Contact resistance between outlet terminal is larger, when by 150A, generates heat extremely serious, relay promptly aging shortens
The service life of relay.
In addition, to guarantee fitting closely between sound terminal, movable contact is generally pressed on stationary contact in existing relay
On, static terminal is easy to produce because of metal fatigue due to the pressure applied by the movable contact of moved end for a long time at work
Change shape, to influence the laminating degree between sound terminal, make to be bonded not close between sound terminal and then generate electric discharge electricity
Arc.Electric arc can make sound contact melt adhesion, to make relay damaged.
Utility model content
The purpose of the utility model is to provide a kind of low-temperature-rise high-reliability relays.
One aspect according to the present utility model provides a kind of low-temperature-rise high-reliability relay, comprising:
Electromagnetic assembly, electromagnetic assembly are mainly made of an electromagnetic coil and the iron core being arranged in inside electromagnetic coil, iron
The setting direction of core its internal magnetic line of force direction, electromagnetic coil one end after electromagnetic coil energization are equipped with an armature, armature
One end of face iron core；
Moved end component is set on the outside of armature, and moved end component includes moved end, and the sub- one end in moved end is connected with external circuit
It connects, the other end is fixed with a movable contact spring, and movable contact spring is elastic conduction sheet metal, and movable contact spring has multiple parallel with one another move
Contact, movable contact spring are connected by an impeller with armature；
Static side component is set on the outside of the component of moved end, and static side component includes a static terminal, and static terminal is connected with external circuit
It connecing, static terminal is inverted U-shaped and its outside is equipped with multiple stationary contacts parallel with one another, and stationary contact and movable contact correspond,
The elastic reaction of movable contact spring separates movable contact with stationary contact；
And armature component, including armature and the hook being connected with armature, armature is set to electromagnetic assembly side and face
One end of iron core moves terminal front end close to armature, links up with one end and be connected with armature, the Liang Ge branch of the other end is located at dynamic
The two sides of reed, one of branch are in contact with movable contact spring, another branch is located at the other side of movable contact spring；
When electromagnetic coil is powered, the magnetic attraction armature that iron core generates rotates close, the extension being connected on armature to iron core
Hook rotates with it, and hook pushes the movable contact spring contacted to be moved, to make movable contact contact with each other with stationary contact, in turn
Achieve the effect that the connection between conducting load and power supply.
Using the low-temperature-rise high-reliability relay of above technical scheme, static terminal uses inverted U-shaped, thus greatly increases
The surface area of static terminal, so as to be effectively conducted because applying electric current and contact web carries the heat that switching generates, heat dissipation effect
Significantly, temperature rise can be substantially reduced.And multiple movable contacts and stationary contact parallel with one another have also been devised, increase contact contact
Area further reduced heating of contact to reduce contact resistance.In addition, using the static terminal of inverted U-shaped can be with shape
At an elastic construction, movable contact is eliminated in time to the impact force of static terminal, energy in movable contact and stationary contact point contact and disconnection
Enough static terminal is effectively prevent to deform, thus extends the service life of relay.And hook can help movable contact spring to reach
To the effect for being separated from each other the movable contact that slight melting welding occurs and stationary contact.In coil blackout, in case of abnormal conditions,
Occur that slight melting welding occurs between movable contact and stationary contact, and the own resilient of movable contact spring is insufficient to allow movable contact and stationary contact to separate
When, it can be acted on by the elastic force of reset reed, the pulling force far from stationary contact direction be applied to movable contact spring by linking up with, to help
It helps the contact of slight melting welding to disconnect, reduces the probability for leading to failure because of contact melted.
In some embodiments, at the top of static terminal to two are consequently formed still further below after horizontal extension a distance
The connected conductive sheet in mutually isolated and top.Conductive sheet not only can be with scattered current flux, but also is also used as cooling fin and makes
With.
In some embodiments, static terminal is integrally formed by metal material or is bent by metal plate.It is quiet as a result,
Terminal processing and manufacture are easier, and cost is lower.
In some embodiments, two conductive sheets are parallel to each other.Thus it can not only guarantee stationary contact thereon and dynamic
Contact closely connects, but also can damage static terminal to avoid electrical discharge arc is generated between two conductive sheets.
In some embodiments, the average thickness of static terminal be greater than 2mm, and the distance between two conductive sheets be 5~
20mm.The intensity of static terminal not only can be enhanced as a result, but also cross-ventilation can also be formed between two conductive sheets, flow
Air the heat transfer on static terminal can be gone out in time.
In some embodiments, movable contact spring one end is fixedly connected with the sub- side in moved end, and the other end is horizontally extending.
Movable contact spring design is more compact as a result, and the electric current in the current direction and moved end in relay closure in movable contact spring
It is contrary, and then a repulsion is formed, so that movable contact is even closer in conjunction with stationary contact.
In some embodiments, impeller passes through moved end and mutually contacts with movable contact spring.
In some embodiments, a contact carriage is fixed on movable contact spring, contact carriage moves touching using thick sheet metal production
Point is set in contact carriage.One side contact carriage has certain hardness, it is possible thereby to which it is same to guarantee that all movable contacts are in
In plane, can simultaneously with stationary contact point contact and disconnection；Another aspect contact carriage is also used as cooling fin will be on movable contact
The heat of generation passes in time, and then reduces the risk of movable contact melting.
In some embodiments, electromagnetic coil is additionally provided with a yoke, the yoke one end edge opposite with armature by iron core
Extend outside electromagnetic coil to armature, yoke top is connected with armature.Iron core, armature and yoke can be formed one it is annular
Magnetic force circuit reduces magnetic resistance effect, reduces calorific value, can prevent armature from deforming and influence service life of relay.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of the low-temperature-rise high-reliability relay of embodiment of the utility model.
Fig. 2 is the top view of low-temperature-rise high-reliability relay shown in Fig. 1.
Fig. 3 is the installation diagram of low-temperature-rise high-reliability relay shown in Fig. 1.
Fig. 4 is the mated condition schematic diagram of moved end component and static side component shown in Fig. 3.
Fig. 5 is the structural schematic diagram of moved end component shown in Fig. 4.
Fig. 6 is the structural schematic diagram of static side component shown in Fig. 4.
The current direction schematic diagram of moved end component when Fig. 7 is closing of circuit.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawing.
Fig. 1 to Fig. 7 schematically shows a kind of highly reliable relay of low-temperature-rise of embodiment according to the present utility model
Device.As shown, the device includes electromagnetic assembly 1, moved end component 2 and static side component 3 and armature component 4.
Wherein, electromagnetic assembly 1 is mainly made of an electromagnetic coil 11 and the iron core 12 being arranged in inside electromagnetic coil 11.
The setting direction of iron core 12 its internal magnetic line of force direction after the energization of electromagnetic coil 11.
Armature component 4 includes armature 41 and the hook 42 and impeller 43 that are connected with armature 41.
Armature 41 is set to one end of 1 side of electromagnetic assembly and face iron core 12.
11 other end of electromagnetic coil is additionally provided with a yoke 14.
The one end opposite with armature 41 from iron core 12 of yoke 14 extends outside electromagnetic coil 11 to armature 41, and yoke 14 pushes up
End is connected with armature 41.Iron core 12, armature 41 and yoke 14 can form an annular magnetic force circuit, reduce magnetic resistance work
With reducing calorific value, can prevent armature 41 from deforming and influence service life of relay.
Moved end component 2 is set to 41 outside of armature.
Moved end component 2 includes moved end 21.
Moved end 21 one end of son are connected with external circuit, and the other end is fixed with a movable contact spring 23.
23 one end of movable contact spring is fixedly connected with sub 21 sides in moved end, and the other end is horizontally extending.Movable contact spring 23 as a result,
It designs more compact.
Movable contact spring 23 is connected by an impeller 43 with armature 14.
Impeller 43 passes through moved end 21 and contacts with 23 phase of movable contact spring.
Movable contact spring 23 is elastic conduction sheet metal, and a contact carriage 24 is fixed on movable contact spring 23.
Multiple movable contacts 22 parallel with one another are fixed in contact carriage 24.
Contact carriage 24 is set in contact carriage using thick sheet metal production, movable contact 22.One side contact carriage 24 has certain
Hardness, it is possible thereby to guarantee that all movable contacts 22 are on same plane, can simultaneously with stationary contact point contact and disconnection；
Another aspect contact carriage 24 is also used as cooling fin and passes the heat of the generation on movable contact 22 in time, and then reduces
The risk that movable contact 22 melts.
It links up with 42 one end to be connected with armature 41, the Liang Ge branch (42a, 42b) of the other end is located at movable contact spring 23
Two sides, one of branch 42a are in contact with movable contact spring 23, another branch 42b is located at the other side of movable contact spring 23.
Static side component 3 is set to 2 outside of moved end component.
Static side component 3 includes a static terminal 31.
Static terminal 31 is connected with external circuit.
Static terminal 31 is inverted U-shaped and its outside is equipped with multiple stationary contacts 32 parallel with one another.
Stationary contact 32 and movable contact 22 correspond.
The elastic reaction of movable contact spring 23 separates movable contact 22 with stationary contact 32.
Electric current side in current direction and moved end 21 when relay is closed in movable contact spring 23 as shown by the arrows in Figure 7
To on the contrary, in turn formed a repulsion so that movable contact 22 combined with stationary contact 32 it is even closer.
In the present embodiment, the top of static terminal 31 to being consequently formed two phases after horizontal extension a distance still further below
The mutually conductive sheet 311 that isolation and top are connected.Conductive sheet 311 not only can be with scattered current flux, but also is also used as radiating
Piece uses.
Static terminal 31 is generally integrally formed by metal material or is bent by metal plate.As a result, static terminal processing and
Manufacture is easier, and cost is lower.
Two conductive sheets 311 are parallel to each other.Thus it can not only guarantee that stationary contact 32 thereon closely connects with movable contact 22
It connects, but also static terminal 31 can be damaged to avoid electrical discharge arc is generated between two conductive sheets 311.
In the present embodiment, the average thickness of static terminal 31 be greater than 2mm, and the distance between two conductive sheets 311 be 5~
20mm.The intensity of static terminal 31 not only can be enhanced as a result, but also cross-ventilation can also be formed between two conductive sheets 311,
The air of flowing can in time go out the heat transfer on static terminal 31.
When electromagnetic coil 11 is powered, the magnetic attraction armature 41 that iron core 12 generates is close to iron core 12, is connected to armature 41
On hook 42 and impeller 43 move, impeller 43 pushes movable contact spring 23 to overcome the elasticity of its own to static side component 3
It is mobile, so that movable contact 22 be made to contact with each other with stationary contact 32, and then external circuit is connected.
When electromagnetic coil 11 powers off, iron core 12 loses magnetism, and armature 41 is far from iron core 12, the hook being connected on armature 41
42 move, and movable contact spring 23 is helped to achieve the effect that the movable contact 22 for making to occur slight melting welding and stationary contact 32 are separated from each other.
As a result, in coil blackout, in case of abnormal conditions, occur that slight melting welding occurs between movable contact 32 and stationary contact 22, and moves
When the own resilient of reed 23 is insufficient to allow movable contact 32 and stationary contact 22 to separate, it can be applied by 42 pairs of movable contact springs 23 of hook
Pulling force far from 32 direction of stationary contact, so that the contact of slight melting welding be helped to disconnect, reducing leads to failure because of contact melted
Probability.
Using the low-temperature-rise high-reliability relay of above technical scheme, static terminal uses inverted U-shaped, thus greatly increases
The surface area of static terminal, so as to be effectively conducted because applying electric current and contact web carries the heat that switching generates, heat dissipation effect
Significantly, temperature rise can be substantially reduced.And multiple movable contacts and stationary contact parallel with one another have also been devised, increase contact contact
Area further reduced heating of contact to reduce contact resistance.In addition, using the static terminal of inverted U-shaped can be with shape
At an elastic construction, movable contact is eliminated in time to the impact force of static terminal, energy in movable contact and stationary contact point contact and disconnection
Enough static terminal is effectively prevent to deform, thus extends the service life of relay.
Above-described is only some embodiments of the utility model.For those of ordinary skill in the art,
Without departing from the concept of the present invention, various modifications and improvements can be made, these belong to practical
Novel protection scope.
Claims (9)
1. a kind of low-temperature-rise high-reliability relay characterized by comprising
Electromagnetic assembly, the electromagnetic assembly is mainly by an electromagnetic coil and the iron core structure being arranged in inside the electromagnetic coil
At the setting direction of the iron core its internal magnetic line of force direction after electromagnetic coil energization；
Moved end component is set on the outside of an armature, and the moved end component includes moved end, described sub- one end in moved end and outside
Circuit is connected, and the other end is fixed with a movable contact spring, and the movable contact spring is elastic conduction sheet metal, and the movable contact spring has
Multiple movable contacts parallel with one another, the movable contact spring are connected by an impeller with the armature；
Static side component is set on the outside of the moved end component, and the static side component includes a static terminal, the static terminal and outside
Circuit is connected, the static terminal be inverted U-shaped and its outside be equipped with multiple stationary contacts parallel with one another, the stationary contact with
The movable contact corresponds, and the elastic reaction of the movable contact spring separates the movable contact with the stationary contact；
And armature component, the armature component include the armature and the hook that is connected with the armature, the armature is set
One end of the iron core described in the electromagnetic assembly side and face, the dynamic terminal front end is close to the armature, the hook one
End is connected with the armature, and the Liang Ge branch of the other end is located at the two sides of the movable contact spring, one of branch and institute
It states movable contact spring to be in contact, another branch is located at the other side of the movable contact spring；
When the electromagnetic coil is powered, armature described in the magnetic attraction that the iron core generates rotates close, connection to the iron core
It is rotated with it in the hook on the armature, the hook pushes the movable contact spring contacted to be moved, to make institute
It states movable contact to contact with each other with the stationary contact, and then achievees the effect that the connection between conducting load and power supply.
2. low-temperature-rise high-reliability relay according to claim 1, which is characterized in that prolong at the top of the static terminal to level
Two conductive sheets mutually isolated and that top is connected are consequently formed still further below after stretching a distance.
3. low-temperature-rise high-reliability relay according to claim 1 or 2, which is characterized in that the static terminal is by metal material
Material is integrally formed or is bent by metal plate.
4. low-temperature-rise high-reliability relay according to claim 2, which is characterized in that described two conductive sheets are mutually flat
Row.
5. low-temperature-rise high-reliability relay according to claim 2, which is characterized in that the average thickness of the static terminal is big
In 2mm, and the distance between described two conductive sheets are 5~20mm.
6. low-temperature-rise high-reliability relay according to claim 1, which is characterized in that moved with described described movable contact spring one end
Terminal side is fixedly connected, and the other end is horizontally extending.
7. low-temperature-rise high-reliability relay according to claim 1 or 6, which is characterized in that the impeller passes through described
Moved end is simultaneously mutually contacted with the movable contact spring.
8. low-temperature-rise high-reliability relay according to claim 1, which is characterized in that be fixed with one on the movable contact spring
Contact carriage, the contact carriage are set in the contact carriage using thick sheet metal production, the movable contact.
9. low-temperature-rise high-reliability relay according to claim 1, which is characterized in that the electromagnetic coil is additionally provided with one
Yoke, yoke one end opposite with the armature from the iron core extend outside the electromagnetic coil to the armature,
The yoke top is connected with the armature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821458816.9U CN208889583U (en) | 2018-09-06 | 2018-09-06 | A kind of low-temperature-rise high-reliability relay |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821458816.9U CN208889583U (en) | 2018-09-06 | 2018-09-06 | A kind of low-temperature-rise high-reliability relay |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208889583U true CN208889583U (en) | 2019-05-21 |
Family
ID=66511407
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821458816.9U Active CN208889583U (en) | 2018-09-06 | 2018-09-06 | A kind of low-temperature-rise high-reliability relay |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208889583U (en) |
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2018
- 2018-09-06 CN CN201821458816.9U patent/CN208889583U/en active Active
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