CN209843610U - Large-current relay capable of realizing arc extinction - Google Patents
Large-current relay capable of realizing arc extinction Download PDFInfo
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- CN209843610U CN209843610U CN201920578913.XU CN201920578913U CN209843610U CN 209843610 U CN209843610 U CN 209843610U CN 201920578913 U CN201920578913 U CN 201920578913U CN 209843610 U CN209843610 U CN 209843610U
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- extinguishing grid
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Abstract
The utility model discloses a large current relay capable of realizing arc extinction, which comprises a shell, a core part and a base part; the movement part comprises a magnetic circuit part and a movable spring armature part which is operated by the magnetic circuit part; the movable spring armature part comprises a bridging piece and a movable contact; the base part comprises two static spring parts provided with static contacts; in the shell, a piece of magnetic steel is respectively arranged outside the end heads of the connecting lines corresponding to the matching of the moving contact and the static contact at the two ends of the bridging piece, so that magnetic quenching is realized by utilizing the magnetic steel; in the shell, a plurality of arc-extinguishing grid pieces are arranged above the movable and static contacts, so that arc is elongated by an arc-extinguishing grid structure formed by the arc-extinguishing grid pieces, and rapid arc extinguishing is realized. On one hand, the utility model can realize better arc extinguishing effect and has the characteristics of simple structure and high arc extinguishing efficiency; on the other hand, the effect of noise reduction can be played, and the effect of strengthening shell intensity, preventing that the shell warp can also be played.
Description
Technical Field
The utility model relates to a relay technical field especially relates to a can realize heavy current relay of arc extinguishing.
Background
A relay is an electronic control device having a control system (also called an input loop) and a controlled system (also called an output loop), which is commonly used in automatic control circuits, and which is actually an "automatic switch" that uses a small current to control a large current. Therefore, the circuit plays the roles of automatic regulation, safety protection, circuit conversion and the like. The relay in the prior art comprises a shell, a core part and a base part, wherein the core part comprises a magnetic circuit part and a movable spring armature part which is operated by the magnetic circuit part, the base part comprises a base and a static spring part fixed on the base, and the movable spring armature part adopts a bridge type movable spring and is matched with the static spring part in the base part; the shell is fixed on the base and accommodates the movement part in the shell, and when the relay is applied to a high-current environment, the following defects mainly exist: firstly, arcing is large when a contact is broken, and a product is easy to lose efficacy; secondly, the noise generated during the action of the product is larger.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects of the prior art, and provides a high-current relay capable of realizing arc extinction, which can realize better arc extinction effect and has the characteristics of simple structure and high arc extinction efficiency by introducing magnetic steel arc extinction and improving the structure of a product in the relay; on the other hand, the effect of noise reduction can be played, and the effect of strengthening shell intensity, preventing that the shell warp can also be played.
The utility model provides a technical scheme that its technical problem adopted is: a high-current relay capable of realizing arc extinction comprises a shell, a movement part and a base part; the shell and the movement part are respectively arranged on the base part, and the movement part is contained in the shell; the movement part comprises a magnetic circuit part and a movable spring armature part which is operated by the magnetic circuit part; the movable spring armature part comprises a bridging piece and movable contacts arranged at two end parts of the bridging piece; the base part comprises a base and two static spring parts fixed on the base; the static spring part is provided with static contacts, and the moving contacts at two ends of the bridging piece of the moving spring armature part are respectively matched with the static contacts of the two static spring parts correspondingly; in the shell, a piece of magnetic steel is respectively arranged outside the end heads of the connecting lines corresponding to the matching of the moving contact and the static contact at the two ends of the bridging piece, so that magnetic quenching is realized by utilizing the magnetic steel; in the shell, a plurality of arc extinguishing grid pieces are arranged above the movable and static contacts, so that arc is elongated by an arc extinguishing grid structure formed by the arc extinguishing grid pieces, and rapid arc extinguishing is realized.
In the two magnetic steels, the opposite surfaces are set to have different polarities, so that one of electric arcs generated at the matching positions of the moving contact and the static contact at the two ends of the bridging piece can be guided to the corresponding one of the two arc extinguishing grid structures in the shell by utilizing a magnetic field formed by the two magnetic steels.
The center line of each arc extinguishing grid piece in the arc extinguishing grid structure along the vertical direction is arranged in an offset mode relative to the center line of the corresponding movable and static contact along the vertical direction.
The center line of each arc extinguishing grid piece in the arc extinguishing grid structure along the vertical direction is closer to the magnetic steel correspondingly matched with the center line of the corresponding movable and static contacts along the vertical direction.
And each arc extinguishing grid sheet in the arc extinguishing grid structure is distributed along the matching direction of the corresponding movable and static contacts.
One end of the outer side of each arc-extinguishing grid sheet in the arc-extinguishing grid structure is fixed with the first blocking wall of the shell, and one end of the inner side of each arc-extinguishing grid sheet in the arc-extinguishing grid structure is fixed with the second blocking wall; and the first blocking wall and the shell wall of the shell form a mounting groove for mounting corresponding magnetic steel.
The bottom position that the second kept off the wall is higher than the bottom position that first kept off the wall to the realization is stepping down to the cooperation department of sound contact.
The top end position of the magnetic steel is higher than the bottom end position of each arc extinguishing grid piece in the corresponding matched arc extinguishing grid structure.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the utility model adopts the structure that a piece of magnetic steel is respectively arranged outside the end heads of the connecting lines which are matched with the movable and static contacts at the two ends of the bridging piece in the shell; and a plurality of arc extinguishing grid pieces are arranged in the shell above the matching of the moving contact and the static contact. The utility model discloses a magnetic blow-out arc is realized to this kind of structure, utilizes the arc extinguishing grid structure that a plurality of arc extinguishing bars piece constitute to lengthen electric arc, realizes quick arc extinguishing.
2. The utility model discloses owing to adopted in two magnet steels, establish to dissimilar polarity in opposite directions one side. The structure of the utility model utilizes the long arc principle to elongate the electric arc in the load loop circuit, thereby accelerating the arc extinction of the electric arc in the load loop circuit; the utility model discloses a bridge structure has two sections electric arcs in load circuit return circuit, the utility model discloses only lead to arc extinguishing bars structure with one section electric arc wherein, and only need extinguish one section electric arc, then whole return circuit electric arc is extinguished, still has simple structure's characteristics when realizing better arc extinguishing effect.
3. The utility model discloses owing to adopted the arc extinguishing grid structure that a plurality of arc extinguishing bars piece constitutes to realize the arc extinguishing, these arc extinguishing bars piece carry out many spaces to the shell space and cut apart, should cut apart and be equivalent to the peripheral multilayer "wavefront" of noise source, this wavefront can make sound take place refraction or diffuse reflection in the shell cavity to make the sound wave obtain the decay in the inner chamber that has the wavefront, and then this structure can help to falling of the noise of relay.
4. The utility model discloses owing to adopted the arc extinguishing grid structure that a plurality of arc extinguishing bars piece constitute to realize the arc extinguishing, these arc extinguishing bars pieces are equivalent to the strengthening rib of shell, have played and have strengthened shell intensity, prevent the effect that the shell warp.
The present invention will be described in further detail with reference to the accompanying drawings and examples; however, the present invention is not limited to the embodiment, and the large current relay capable of arc extinction is provided.
Drawings
Fig. 1 is a structural cross-sectional view (taken along the connecting lines of the contacts) of an embodiment of the present invention;
fig. 2 is a structural cross-sectional view (opposite to the view of fig. 1) of an embodiment of the present invention;
fig. 3 is a structural sectional view (cut along the moving direction of the movable contact) of the embodiment of the present invention;
fig. 4 is a structural cross-sectional view (opposite to the view of fig. 3) of an embodiment of the present invention;
fig. 5 is a schematic view of the cooperation of the movement part, the magnetic steel and the base part according to the embodiment of the present invention;
fig. 6 is a schematic view of the housing (bottom turned up) of an embodiment of the invention;
fig. 7 is a top view of the housing (bottom turned up) of an embodiment of the present invention;
fig. 8 is a schematic view of the housing (bottom turned up) of an embodiment of the present invention mated with magnetic steel;
fig. 9 is a top view of the housing (upside down) and magnet steel mating of an embodiment of the present invention.
Detailed Description
Examples
Referring to fig. 1 to 9, the large current relay capable of extinguishing arc of the present invention includes a housing 3, a core part 2 and a base part 1; the shell 3 and the movement part 2 are respectively arranged on the base part 1, and the movement part 2 is contained in the shell 3; the movement part 2 comprises a magnetic circuit part 21 and a movable spring armature part 22 operated by the magnetic circuit part; the moving spring armature part 22 comprises a bridging piece 221 and a moving contact 222 arranged at two end parts of the bridging piece, the moving contact 222 of the embodiment is a separate part and is fixed on the bridging piece 221, of course, the moving contact can also be a protrusion integrally formed by the bridging piece 221, or the moving contact is directly formed by the end part of the bridging piece 221; the base part 1 comprises a base 11 and two static spring parts 12 fixed on the base; the static spring part 12 is provided with a static contact 121, the static contact 121 of the present embodiment is a separate component and is fixed on a static spring 122 of the static spring part 12, of course, the static contact may also be a protrusion formed by integrally forming the static spring 122, or the static spring 122 directly forms the static contact; the moving contacts 222 at two ends of the bridging piece 221 of the moving spring armature part are respectively matched with the fixed contacts 121 of the two fixed spring parts correspondingly; in the shell 3, a piece of magnetic steel 4 is respectively arranged outside the end heads of the connecting lines corresponding to the matching of the moving contact and the static contact at the two ends of the bridging piece 221, so that magnetic arc quenching is realized by the magnetic steel 4; in the shell 3, a plurality of arc-extinguishing grid plates 31 are arranged above the movable and static contacts, so that the arc-extinguishing grid structure 30 formed by the arc-extinguishing grid plates is utilized to lengthen the arc, and the rapid arc extinguishing is realized.
In this embodiment, the opposite surfaces of the two magnetic steels 4 have different polarities, so that the magnetic field formed by the two magnetic steels 4 can guide one of the arcs generated at the matching position of the moving and static contacts at the two ends of the bridge piece to the corresponding one of the two arc extinguishing grid structures 30 in the housing 3.
In this embodiment, the center line of each arc-extinguishing grid 31 in the arc-extinguishing grid structure 30 along the vertical direction is offset from the center line of the corresponding moving and static contacts along the vertical direction.
In this embodiment, the center line of each arc-extinguishing grid 31 in the arc-extinguishing grid structure 30 along the vertical direction is closer to the corresponding matched magnetic steel 4 than the center line of the corresponding moving and static contacts along the vertical direction.
In this embodiment, the arc-extinguishing grid pieces 31 in the arc-extinguishing grid structure 30 are respectively distributed along the matching direction of the corresponding moving and static contacts.
In this embodiment, one end of the outer side of each arc-extinguishing grid 31 in the arc-extinguishing grid structure 30 is fixed to the first blocking wall 32 of the housing, and one end of the inner side of each arc-extinguishing grid 31 in the arc-extinguishing grid structure 30 is fixed to the second blocking wall 33; the first blocking wall 32 and the shell wall of the housing 3 enclose a mounting groove 34 for mounting the corresponding magnetic steel 4.
In this embodiment, the bottom end position of the second blocking wall 33 is higher than the bottom end position of the first blocking wall 32, so as to realize abdicating the matching position of the moving and static contacts. First fender wall 32 and second fender wall 33 are all set up by the roof downwardly extending of shell, and arc extinguishing bars piece 31 is also set up by the roof downwardly extending of shell, and the vertical length of arc extinguishing bars piece 31 is roughly the same with the vertical length of second fender wall 33, and the vertical length of first fender wall 32 is longer than the vertical length of second fender wall 33, and like this, the position of the bottom of first fender wall 32 just is lower than the position of the bottom of second fender wall 33, and the bottom of second fender wall 33 and arc extinguishing bars piece 31 can hold matched with sound contact just.
The top end position of the magnetic steel 4 is higher than the bottom end position of each arc extinguishing grid piece 31 in the corresponding matched arc extinguishing grid structure 30.
The utility model discloses a large current relay capable of realizing arc extinction, which adopts the structure that a piece of magnetic steel 4 is respectively arranged outside the end of a connecting line which is matched with a movable contact and a fixed contact which are corresponding to the two ends of a bridging piece in a shell 3; and in the shell 3, a plurality of arc extinguishing grid pieces 31 are arranged above the matched part corresponding to the moving contact and the static contact. The utility model discloses a magnetic blowout arc extinguishing is realized to this kind of structure, utilizes magnet steel 4, utilizes the arc extinguishing grid structure 30 that a plurality of arc extinguishing bars piece 31 constitute to lengthen electric arc, realizes quick arc extinguishing.
The utility model discloses a can realize heavy current relay of arc extinguishing has adopted two magnet steel 4, and the one side in opposite directions is established to dissimilar polarity. The structure of the utility model utilizes the long arc principle to elongate the electric arc in the load loop circuit, thereby accelerating the arc extinction of the electric arc in the load loop circuit; the utility model discloses a bridge structure has two sections electric arcs in load circuit return circuit, the utility model discloses only lead to arc extinguishing bars structure with one section electric arc wherein, and only need extinguish one section electric arc, then whole return circuit electric arc is extinguished, still has simple structure's characteristics when realizing better arc extinguishing effect.
The utility model discloses a can realize heavy current relay of arc extinguishing, the arc extinguishing grid structure 30 that has adopted a plurality of arc extinguishing bars 31 to constitute realizes the arc extinguishing, these arc extinguishing bars 31 carry out many spaces to the shell space and cut apart, should cut apart and be equivalent to noise source peripheral multilayer "wavefront", this wavefront can make sound take place refraction or diffuse reflection in the shell cavity, thereby make the sound wave obtain the decay through the inner chamber that has the wavefront, and then this structure can help to falling of the noise of relay.
The utility model discloses a can realize heavy current relay of arc extinguishing has adopted the arc extinguishing grid structure 30 that a plurality of arc extinguishing bars 31 constitute to realize the arc extinguishing, and these arc extinguishing bars 31 are equivalent to the strengthening rib of shell, have played and have strengthened shell intensity, prevent the effect that the shell warp.
The foregoing is illustrative of the preferred embodiment of the present invention and is not to be construed as limiting the invention in any way. Although the present invention has been described with reference to the preferred embodiments, it is not intended to limit the present invention. The technical solutions disclosed above can be used by those skilled in the art to make many possible variations and modifications, or to modify equivalent embodiments, without departing from the scope of the present invention. Therefore, any simple modification, equivalent change and modification made to the above embodiments by the technical entity of the present invention should fall within the protection scope of the technical solution of the present invention.
Claims (8)
1. A high-current relay capable of realizing arc extinction comprises a shell, a movement part and a base part; the shell and the movement part are respectively arranged on the base part, and the movement part is contained in the shell; the movement part comprises a magnetic circuit part and a movable spring armature part which is operated by the magnetic circuit part; the movable spring armature part comprises a bridging piece and movable contacts arranged at two end parts of the bridging piece; the base part comprises a base and two static spring parts fixed on the base; the static spring part is provided with static contacts, and the moving contacts at two ends of the bridging piece of the moving spring armature part are respectively matched with the static contacts of the two static spring parts correspondingly; the method is characterized in that: in the shell, a piece of magnetic steel is respectively arranged outside the end heads of the connecting lines corresponding to the matching of the moving contact and the static contact at the two ends of the bridging piece, so that magnetic quenching is realized by utilizing the magnetic steel; in the shell, a plurality of arc extinguishing grid pieces are arranged above the movable and static contacts, so that arc is elongated by an arc extinguishing grid structure formed by the arc extinguishing grid pieces, and rapid arc extinguishing is realized.
2. A high current relay capable of achieving arc extinction as claimed in claim 1, wherein: in the two magnetic steels, the opposite surfaces are set to have different polarities, so that one of electric arcs generated at the matching positions of the moving contact and the static contact at the two ends of the bridging piece can be guided to the corresponding one of the two arc extinguishing grid structures in the shell by utilizing a magnetic field formed by the two magnetic steels.
3. A high current relay capable of achieving arc extinction as claimed in claim 1, wherein: the center line of each arc extinguishing grid piece in the arc extinguishing grid structure along the vertical direction is arranged in an offset mode relative to the center line of the corresponding movable and static contact along the vertical direction.
4. A high current relay capable of achieving arc extinction as claimed in claim 3, wherein: the center line of each arc extinguishing grid piece in the arc extinguishing grid structure along the vertical direction is closer to the magnetic steel correspondingly matched with the center line of the corresponding movable and static contacts along the vertical direction.
5. A high current relay capable of achieving arc extinction as claimed in claim 1, wherein: and each arc extinguishing grid sheet in the arc extinguishing grid structure is distributed along the matching direction of the corresponding movable and static contacts.
6. An arc-quenching large-current relay as claimed in claim 5, wherein: one end of the outer side of each arc-extinguishing grid sheet in the arc-extinguishing grid structure is fixed with the first blocking wall of the shell, and one end of the inner side of each arc-extinguishing grid sheet in the arc-extinguishing grid structure is fixed with the second blocking wall; and the first blocking wall and the shell wall of the shell form a mounting groove for mounting corresponding magnetic steel.
7. An arc-quenching large-current relay as claimed in claim 6, wherein: the bottom position that the second kept off the wall is higher than the bottom position that first kept off the wall to the realization is stepping down to the cooperation department of sound contact.
8. An arc-quenching large-current relay as claimed in claim 6, wherein: the top end position of the magnetic steel is higher than the bottom end position of each arc extinguishing grid piece in the corresponding matched arc extinguishing grid structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920578913.XU CN209843610U (en) | 2019-04-25 | 2019-04-25 | Large-current relay capable of realizing arc extinction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920578913.XU CN209843610U (en) | 2019-04-25 | 2019-04-25 | Large-current relay capable of realizing arc extinction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209843610U true CN209843610U (en) | 2019-12-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920578913.XU Active CN209843610U (en) | 2019-04-25 | 2019-04-25 | Large-current relay capable of realizing arc extinction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209843610U (en) |
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2019
- 2019-04-25 CN CN201920578913.XU patent/CN209843610U/en active Active
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