CN216120110U - Contact relay - Google Patents
Contact relay Download PDFInfo
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- CN216120110U CN216120110U CN202122239055.6U CN202122239055U CN216120110U CN 216120110 U CN216120110 U CN 216120110U CN 202122239055 U CN202122239055 U CN 202122239055U CN 216120110 U CN216120110 U CN 216120110U
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Abstract
The utility model discloses a contact relay, which comprises a shell, two stationary contacts, two first magnetic parts, two second magnetic parts and two magnetic conduction parts, wherein the two stationary contacts are arranged on the top wall of the shell, and the two first magnetic parts, the two second magnetic parts and the two magnetic conduction parts are uniformly arranged on two side walls of the shell. On one hand, the two first magnetic components on the two side walls generate magnetic fields on two sides for blowing the electric arc generated at the static contact to the connecting line of the two static contacts; on the other hand, the second magnetic part can increase the magnetic flux area on the periphery of the first magnetic part, so that the whole magnetic field of the magnetic fields on two sides of the connecting line of the two stationary contacts is widened, a longer arc blowing distance is achieved, and a better arc blowing effect is achieved; in the third aspect, the magnetic domains of the magnetic conduction pieces are arranged along the magnetic field lines under the action of the magnetic field, so that the magnetic field intensity of the first magnetic part can be improved, the magnetic flux of the first magnetic part can be increased, the speed of the electric arc is increased, the arc extinction is realized as fast as possible, and the arc extinction effect of the contact relay is improved.
Description
Technical Field
The utility model relates to the technical field of relays, in particular to a contact relay.
Background
In order to solve the problem that the electric arcs generated when two movable contacts and two fixed contacts of the contact relay are used in a charged state can interfere with each other, so that the contact relay is easy to have accidents such as short circuit, in the application document with the application number of '202021905057.3', the magnets are arranged on the two opposite side walls of the upper shell, and generate a magnetic field to blow the electric arcs generated when the movable contacts and the fixed contacts are separated, so that the direction of the electric arcs is changed, and the arc extinguishing effect is achieved. However, this method has a problem that the magnetic flux between both side walls is weak and the arc extinguishing effect is poor.
SUMMERY OF THE UTILITY MODEL
In order to overcome at least one of the above-mentioned drawbacks of the prior art, the present invention provides a contact relay, so as to solve the problem of poor arc extinguishing effect of the existing contact relay.
The technical scheme adopted by the utility model for solving the problems is as follows:
a contact relay, comprising:
the shell comprises a top wall and two side walls connected to the top wall;
the two static contacts are arranged on the top wall at intervals;
the two first magnetic parts are respectively arranged on the two side walls;
the two second magnetic parts are respectively arranged between the two first magnetic parts and the two side walls, and the thickness of each second magnetic part is smaller than that of each first magnetic part and the width of each second magnetic part is larger than that of each first magnetic part; and
and the two magnetic conduction pieces are respectively arranged between the two second magnetic parts and the two side walls.
Furthermore, the two first magnetic parts, the two second magnetic parts and the two magnetic conduction parts are symmetrically arranged about a perpendicular bisector of a connecting line of the two stationary contacts.
Furthermore, the two first magnetic parts, the two second magnetic parts and the two magnetic conduction parts are all located on an extension line of a connecting line of the two stationary contacts.
Furthermore, the two first magnetic parts, the two second magnetic parts and the two magnetic conduction parts are all arranged in a manner of inclining to the extension line of the connecting line of the two stationary contacts.
Furthermore, the two first magnetic parts, the two second magnetic parts and the two magnetic conduction parts are all arranged perpendicular to an extension line of a connecting line of the two stationary contacts.
Further, the magnetic pole of the second magnetic part is perpendicular to the magnetic pole direction of the first magnetic part.
Further, the magnetic pole of the second magnetic part is parallel to the magnetic pole direction of the first magnetic part.
Further, the first magnetic part and the second magnetic part are integrally formed.
Furthermore, the top wall extends inwards to form two retaining walls, the two retaining walls and the two side walls enclose to form two first mounting grooves, and the two first magnetic parts, the two second magnetic parts and the two magnetic conduction parts are respectively mounted in the two first mounting grooves.
Further, the contact relay further comprises a third magnetic component, and the third magnetic component is arranged on the top wall and located between the two stationary contacts.
In summary, the contact relay provided by the utility model has the following technical effects:
the utility model relates to a contact relay, which comprises a shell, two stationary contacts, two first magnetic parts, two second magnetic parts and two magnetic conduction parts, wherein the shell comprises a top wall and two side walls connected to the top wall, the two stationary contacts are arranged on the top wall at intervals, the two first magnetic parts are respectively arranged on the two side walls, the two second magnetic parts are respectively arranged between the two first magnetic parts and the two side walls, the thickness of each second magnetic part is smaller than that of each first magnetic part, the width of each second magnetic part is larger than that of each first magnetic part, and the two magnetic conduction parts are respectively arranged between the two second magnetic parts and the two side walls. According to the contact relay, on one hand, the two first magnetic components on the two side walls generate magnetic fields on two sides, and the magnetic fields are used for blowing electric arcs generated at the static contacts to a connecting line of the two static contacts; on the other hand, the second magnetic part can increase the magnetic flux area on the periphery of the first magnetic part, so that the whole magnetic field of the magnetic fields on two sides of the connecting line of the two stationary contacts is widened, a longer arc blowing distance is achieved, and a better arc blowing effect is achieved; the third aspect, the magnetic field of magnetic conduction spare will be arranged along the magnetic field line under the effect in magnetic field, can promote first magnetic part's magnetic field intensity, can increase first magnetic part's magnetic flux for the speed of electric arc to as fast as possible realizes the arc extinction, thereby improves this contact relay's the effect of blowing arc, and to sum up, the contact relay of this scheme has the arc extinguishing effect of preferred.
Drawings
Fig. 1 is a schematic structural view of a contact relay according to an embodiment of the present invention;
fig. 2 is a sectional view of a contact relay of an embodiment of the present invention;
fig. 3 is an exploded view of a part of the structure of a contact relay according to an embodiment of the present invention;
fig. 4 is a magnetic field line distribution diagram around the first magnetic member, the second magnetic member, and the magnetic conductive member of the contact relay according to the embodiment of the present invention.
Wherein the reference numerals have the following meanings:
1. a housing; 11. an upper housing; 111. a top wall; 112. a side wall; 113. an annular wall; 114. a first mounting groove; 115. a retaining wall; 116. a second mounting groove; 12. a lower housing; 2. a stationary contact; 3. a first magnetic member; 4. a second magnetic member; 5. a magnetic conductive member; 6. a third magnetic component.
Detailed Description
For better understanding and implementation, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model.
Referring to fig. 1 to 4, the utility model discloses a contact relay, which comprises a shell 1, two stationary contacts 2, two first magnetic components 3, two second magnetic components 4 and two magnetic conductive members 5, wherein the shell 1 comprises a top wall 111 and two side walls 112 connected to the top wall 111, the two stationary contacts 2 are arranged on the top wall 111 at intervals, the two first magnetic components 3 are respectively arranged on the two side walls 112, the two second magnetic components 4 are respectively arranged between the two first magnetic components 3 and the two side walls 112, the thickness of the second magnetic component 4 is smaller than that of the first magnetic components 3, the width of the second magnetic component 4 is larger than that of the first magnetic components 3, and the two magnetic conductive members 5 are respectively arranged between the two second magnetic components 4 and the two side walls 112.
In the contact relay of the present embodiment, as shown in fig. 4, on one hand, the two first magnetic members 3 on the two side walls 112 generate magnetic fields on two sides for blowing the electric arc generated at the stationary contact 2 to the connection line of the two stationary contacts 2; on the other hand, the second magnetic part 4 can increase the magnetic flux area of the periphery of the first magnetic part 3, so that the whole magnetic field of the magnetic fields at two sides of the connecting line of the two fixed contacts 2 is widened, a longer arc blowing distance is achieved, and a better arc blowing effect is achieved; third aspect, magnetic conduction 5's magnetic domain will be arranged along the magnetic field line under the effect in magnetic field, can promote first magnetic part 3's magnetic field intensity, can increase first magnetic part 3's magnetic flux for the speed of electric arc to as fast as possible realizes the arc extinction, thereby improves this contact relay's arc blowing effect, and to sum up, the contact relay of this scheme has the arc extinguishing effect of preferred.
In some embodiments, the housing 1 includes an upper housing 111 and a lower housing 121 connected together, and the top wall 111 and the two sidewalls 112 are located on the upper housing 111. It is understood that in other preferred embodiments, the housing 1 may also include a left housing 1 and a right housing 1 that are connected in a butt joint manner, and the top wall 111 is partially located on the left housing 1, and the other portion is located on the right housing 1, and the two side walls 112 are respectively located on the left housing 1 and the right housing 1, which is not limited herein.
In some embodiments, the two first magnetic members 3, the two second magnetic members 4, and the two magnetic conductive members 5 are symmetrically disposed about a perpendicular bisector of a line connecting the two stationary contacts 2. With such an arrangement, under the combined action of the two first magnetic components 3, the two second magnetic components 4 and the two magnetic conductive members 5, the magnetic fields generated by the two first magnetic components 3, the two second magnetic components 4 and the two magnetic conductive members 5 can blow the electric arc generated at the two stationary contacts 2 to both sides.
Further, the two first magnetic components 3, the two second magnetic components 4, and the two magnetic conductive members 5 are symmetrically disposed about the perpendicular bisector of the connecting line of the two stationary contacts 2, which may specifically include the following optional embodiments:
as a first optional embodiment, the two first magnetic components 3, the two second magnetic components 4, and the two magnetic conductive members 5 are all located on an extension line of the connecting line of the two stationary contacts 2, that is, the two first magnetic components 3, the two second magnetic components 4, and the two magnetic conductive members 5 are located on the same straight line with the two stationary contacts 2.
As a second optional implementation manner, the two first magnetic components 3, the two second magnetic components 4, and the two magnetic conductive members 5 are all disposed obliquely to the extension line of the connecting line of the two stationary contacts 2, that is, the two first magnetic components 3, the two second magnetic components 4, and the two magnetic conductive members 5 are respectively located at two sides of the connecting line of the two stationary contacts 2 and are oblique to the extension line of the connecting line of the two stationary contacts 2.
As a third alternative embodiment, the two first magnetic components 3, the two second magnetic components 4, and the two magnetic conductive members 5 are all symmetrically disposed about the perpendicular bisector of the connecting line of the two stationary contacts 2, that is, the two first magnetic components 3 are respectively located at two sides of the connecting line of the two stationary contacts 2 and perpendicular to the extending line of the connecting line of the two stationary contacts 2.
In the present embodiment, the two first magnetic components 3, the two second magnetic components 4, and the two magnetic conductive members 5 are all located on the extension line of the connecting line of the two stationary contacts 2.
In some embodiments, as an alternative, the magnetic poles of the second magnetic part 4 are perpendicular to the magnetic poles of the first magnetic part 3. As another alternative, the magnetic poles of the second magnetic part 4 are parallel to the magnetic pole direction of the first magnetic part 3. The present embodiment exemplifies an example in which the magnetic pole of the second magnetic member 4 is parallel to the magnetic pole direction of the first magnetic member 3.
Preferably, the second magnetic component 4 and the first magnetic component 3 may be integrally formed (not shown), so that the first magnetic component 3 and the second magnetic component 4 may be integrally formed during processing, thereby facilitating the simplification of the production process of the first magnetic component 3.
Optionally, the first magnetic component 3 and the second magnetic component 4 are both magnetic steel. It is to be understood that, in other preferred embodiments, the first magnetic member 3 and the second magnetic member 4 may also be magnetic members made of a magnetic material such as a magnet, and are not limited herein.
Optionally, the magnetic conductive member 5 is an iron block, and because the cost of the iron block is far lower than that of the magnetic steel, the volume of the iron block, which is generally used as the magnetic conductive member 5, is larger than that of the magnetic steel of the first magnetic component 3 and the second magnetic component 4.
In some embodiments, in order to fix the two first magnetic components 3, the two second magnetic components 4, and the two magnetic conductive members 5 on the housing 1, the top wall 111 extends inward to form two blocking walls 115, the two blocking walls 115 and the two side walls 112 respectively enclose between them to form two second mounting slots 116, the two first magnetic components 3, the two second magnetic components 4, and the two magnetic conductive members 5 are respectively mounted in the two second mounting slots 116, so as to fix the two first magnetic components 3, the two second magnetic components 4, and the two magnetic conductive members 5 on the housing 1. In addition, because the two first magnetic components 3, the two second magnetic components 4 and the two magnetic conductive members 5 are respectively installed in the two second installation grooves 116 formed by the two blocking walls 115 and the two side walls 112, the first magnetic components 3, the second magnetic components 4, the magnetic conductive members 5 and the stationary contact 2 can be further separated, so that the magnetic field intensity of the first magnetic components 3 is prevented from being reduced due to the high temperature generated when the electric arc splashes to the first magnetic components 3, the second magnetic components 4 and the magnetic conductive members 5.
In some embodiments, the contact relay further comprises a third magnetic member 6, the third magnetic member 6 being disposed on the top wall 111 and between the two stationary contacts 2. With such an arrangement, the third magnetic member 6 on the top wall 111 can transition magnetic lines generated by the two first magnetic members 3, the two second magnetic members and the two magnetic conductive members 5 on the two side walls 112, so as to increase the magnetic field strength in the contact region of the fixed contact 2 and the movable contact, and improve the arc extinguishing effect.
Further, a third magnetic part 6 is located between the two stationary contacts 2. With such an arrangement, the third magnetic member 6 is located at the middle position between the two first magnetic members 3, so that the third magnetic member 6 can uniformly transition magnetic lines generated by the two first magnetic members 3, the two second magnetic members and the two magnetic conductive members 5 on the two side walls 112.
The third magnetic component 6 may be one or a plurality of spaced magnetic components, which is not limited herein, and the third magnetic component 6 is taken as an example in the present embodiment.
Further, in order to achieve the mounting and fixing of the third magnetic element 6 on the housing 1, the top wall 111 extends inward to form an annular wall 113 having a second mounting groove 116, and the third magnetic element 6 is mounted in the second mounting groove 116, thereby achieving the mounting and fixing of the third magnetic element 6 on the housing 1. In addition, since the third magnetic member 6 is mounted in the second mounting groove 116 formed by the surrounding of the annular wall 113, the third magnetic member 6 and the stationary contact 2 can be separated from each other, so that the magnetic field intensity of the third magnetic member 6 is prevented from being reduced due to the high temperature generated when the arc is splashed onto the third magnetic member 6.
Optionally, the third magnetic component 6 is magnetic steel. It is to be understood that, in other preferred embodiments, the third magnetic member 6 may also be a magnetic member made of a magnetic material such as a magnet, which is not limited herein.
The utility model provides a contact relay, which comprises a shell 1, two stationary contacts 2, two first magnetic parts 3, two second magnetic parts 4 and two magnetic conduction parts 5, wherein the shell 1 comprises a top wall 111 and two side walls 112 connected to the top wall 111, the two stationary contacts 2 are arranged on the top wall 111 at intervals, the two first magnetic parts 3 are respectively arranged on the two side walls 112, the two second magnetic parts 4 are respectively arranged between the two first magnetic parts 3 and the two side walls 112, the thickness of the second magnetic parts 4 is smaller than that of the first magnetic parts 3, the width of the second magnetic parts 4 is larger than that of the first magnetic parts 3, and the two magnetic conduction parts 5 are respectively arranged between the two second magnetic parts 4 and the two side walls 112. In the contact relay of the scheme, on one hand, the two first magnetic components 3 on the two side walls 112 generate magnetic fields on two sides for blowing electric arcs generated at the static contacts 2 to the connection line of the two static contacts 2; on the other hand, the second magnetic part 4 can increase the magnetic flux area of the periphery of the first magnetic part 3, so that the whole magnetic field of the magnetic fields at two sides of the connecting line of the two fixed contacts 2 is widened, a longer arc blowing distance is achieved, and a better arc blowing effect is achieved; third aspect, magnetic conduction 5's magnetic domain will be arranged along the magnetic field line under the effect in magnetic field, can promote first magnetic part 3's magnetic field intensity, can increase first magnetic part 3's magnetic flux for the speed of electric arc to as fast as possible realizes the arc extinction, thereby improves this contact relay's arc blowing effect, and to sum up, the contact relay of this scheme has the arc extinguishing effect of preferred.
The technical means disclosed in the utility model scheme are not limited to the technical means disclosed in the above embodiments, but also include the technical scheme formed by any combination of the above technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of the present invention, and such improvements and modifications are also considered to be within the scope of the present invention.
Claims (10)
1. A contact relay, comprising:
the shell (1), the shell (1) comprises a top wall (111) and two side walls (112) connected to the top wall (111);
the two static contacts (2) are arranged on the top wall (111) at intervals;
the two first magnetic parts (3), the two first magnetic parts (3) are respectively arranged on the two side walls (112);
the two second magnetic parts (4) are respectively arranged between the two first magnetic parts (3) and the two side walls (112), and the thickness of each second magnetic part (4) is smaller than that of each first magnetic part (3) and the width of each second magnetic part (4) is larger than that of each first magnetic part (3); and
the two magnetic conduction pieces (5) are respectively arranged between the two second magnetic parts (4) and the two side walls (112).
2. The contact relay according to claim 1, wherein the two first magnetic members (3), the two second magnetic members (4), and the two magnetic conductive members (5) are symmetrically disposed about a perpendicular line connecting the two stationary contacts (2).
3. The contact relay according to claim 2, wherein the two first magnetic members (3), the two second magnetic members (4) and the two magnetic conductive members (5) are located on an extension of a connecting line of the two stationary contacts (2).
4. The contact relay according to claim 2, wherein the two first magnetic members (3), the two second magnetic members (4) and the two magnetic conductive members (5) are arranged obliquely to an extension line of a connecting line of the two stationary contacts (2).
5. The contact relay according to claim 2, wherein the two first magnetic members (3), the two second magnetic members (4) and the two magnetic conductive members (5) are arranged perpendicular to an extension line of a connecting line of the two stationary contacts (2).
6. The contact relay according to claim 1, characterized in that the magnetic poles of the second magnetic part (4) are perpendicular to the magnetic pole direction of the first magnetic part (3).
7. The contact relay according to claim 1, characterized in that the magnetic poles of the second magnetic part (4) are parallel to the magnetic pole direction of the first magnetic part (3).
8. The contact relay according to claim 1, characterized in that the first magnetic part (3) and the second magnetic part (4) are integrally formed.
9. The contact relay according to claim 1, wherein the top wall (111) extends inward to form two blocking walls (115), the two blocking walls (115) respectively enclose two first installation slots (114) with the two side walls (112), and the two first magnetic members (3), the two second magnetic members (4) and the two magnetic conductive members (5) are respectively installed in the two first installation slots (114).
10. The contact relay according to any of claims 1 to 9, characterized in that it further comprises a third magnetic part (6), said third magnetic part (6) being provided on said top wall (111) and being located between two of said stationary contacts (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122239055.6U CN216120110U (en) | 2021-09-15 | 2021-09-15 | Contact relay |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122239055.6U CN216120110U (en) | 2021-09-15 | 2021-09-15 | Contact relay |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216120110U true CN216120110U (en) | 2022-03-22 |
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ID=80733832
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122239055.6U Active CN216120110U (en) | 2021-09-15 | 2021-09-15 | Contact relay |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216120110U (en) |
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2021
- 2021-09-15 CN CN202122239055.6U patent/CN216120110U/en active Active
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