CN219696350U - Ceramic high-voltage direct-current relay with magnetic arc extinguishing structure - Google Patents
Ceramic high-voltage direct-current relay with magnetic arc extinguishing structure Download PDFInfo
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- CN219696350U CN219696350U CN202321304241.6U CN202321304241U CN219696350U CN 219696350 U CN219696350 U CN 219696350U CN 202321304241 U CN202321304241 U CN 202321304241U CN 219696350 U CN219696350 U CN 219696350U
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- 239000000919 ceramic Substances 0.000 title claims abstract description 50
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 151
- 239000010959 steel Substances 0.000 claims abstract description 151
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 52
- 229910052742 iron Inorganic materials 0.000 claims abstract description 26
- 230000005389 magnetism Effects 0.000 claims description 2
- 230000003068 static effect Effects 0.000 claims 1
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
The utility model relates to a ceramic high-voltage direct-current relay with a magnetic arc extinguishing structure, which comprises a shell, an electromagnetic driving mechanism, a ceramic cover arranged on the electromagnetic driving mechanism and a contact assembly arranged in the ceramic cover, wherein the contact assembly comprises a moving contact in linkage fit with the electromagnetic driving mechanism, a first magnetic steel group and a second magnetic steel group are respectively arranged at the contact points of the two fixed contacts and the moving contact outside the ceramic cover of the two fixed contacts, the first magnetic steel group comprises a first yoke iron clamp and a first magnetic steel arranged in the first yoke iron clamp, the second magnetic steel group comprises a first yoke iron clamp and a second magnetic steel arranged in the first yoke iron clamp, at least one third magnetic steel is arranged between the two fixed contacts on the ceramic cover, and the polarity distribution directions of the first magnetic steel, the second magnetic steel and the third magnetic steel are the same. The utility model has the advantages of simple structure, stable and reliable performance, strong magnetic field intensity of the arcing point and strong arc extinguishing capability.
Description
Technical Field
The utility model relates to the technical field of relays, in particular to a ceramic high-voltage direct-current relay with a magnetic arc extinguishing structure.
Background
The relay is used as an electronic control device, and the medium (tool) used has electricity, light, magnetism, heat and the like (i.e. input quantity), and the transmission and control are circuits or signals (i.e. output quantity), and the relay is provided with a control system (also known as an input loop) and a controlled system (also known as an output loop), and the two loops are coupled through an internal mechanical or electronic device to realize linkage of states of the two loops. Relays are commonly used in automatic control circuits. The automatic switch is equivalent to an automatic switch, and plays roles of automatic adjustment, safety protection, circuit switching and the like in a circuit. Along with the rapid development of new energy industry, the high-voltage direct-current relay is widely applied to the fields of new energy automobiles, charging corollary equipment, photovoltaic/wind power generation systems, engineering vehicles, UPS and the like. At present, auxiliary contact requirements are met for a charging pile and a high-voltage direct-current relay for energy storage. The high voltage and the high current become the development direction of new energy, and this puts forward higher safety requirement to high voltage direct current relay, and current high voltage direct current relay adopts magnet steel arc extinguishing structure design, and the left and right sides of two magnet steel distribution contacts, because of ceramic cover thickness's reason, magnet steel is great with the distance of contact starting point, and the magnetic leakage is more, and the magnetic field of magnetic line of force is weaker through the contact only in the middle of the part, and it is relatively poor to lead to its arc extinguishing ability.
Disclosure of Invention
The utility model aims to overcome the defects of the prior art and provide the ceramic high-voltage direct current relay with the magnetic arc extinguishing structure, which has the advantages of simple structure, stable and reliable performance, strong magnetic field intensity at the arcing point and strong arc extinguishing capability.
In order to achieve the above purpose, the ceramic high-voltage direct-current relay adopting the magnetic arc extinguishing structure comprises a shell, an electromagnetic driving mechanism, a ceramic cover arranged on the electromagnetic driving mechanism and a contact assembly arranged in the ceramic cover, wherein the contact assembly comprises a moving contact and two fixed contacts which are in linkage fit with the electromagnetic driving mechanism, a first magnetic steel group and a second magnetic steel group are respectively arranged at the contact points of the two fixed contacts and the moving contact outside the ceramic cover, the first magnetic steel group comprises a first yoke iron clamp and a first magnetic steel arranged in the first yoke iron clamp, the second magnetic steel group comprises a first yoke iron clamp and a second magnetic steel arranged in the first yoke iron clamp, at least one third magnetic steel is arranged between the two fixed contacts corresponding to the ceramic cover, and the polarity distribution directions of the first magnetic steel, the second magnetic steel and the third magnetic steel are the same.
The beneficial effects of the structure are as follows: the first magnetic steel, the second magnetic steel and the third magnetic steel are arranged outside the ceramic cover, the distance between the first magnetic steel, the second magnetic steel and the starting points of the two contact points is smaller, the magnetic leakage is smaller, the magnetic field intensity of the starting points can be increased, and the arc extinguishing capability is stronger. Therefore, the high-voltage direct-current relay has the advantages of simple structure, stable and reliable performance, strong magnetic field strength of an arcing point and strong arc extinguishing capability.
In particular, the first magnetic steel, the second magnetic steel and the third magnetic steel are distributed on the ceramic cover in a 'delta' shape. The first magnetic steel, the second magnetic steel and the third magnetic steel are distributed in a delta shape, so that the distances between the first magnetic steel, the second magnetic steel and the third magnetic steel and the starting point of the contact point are closer, the magnetic field intensity of the starting point is enhanced, and the arc extinguishing capability of the high-voltage direct current relay is improved.
Particularly, the length direction of the two fixed contacts is perpendicular to the length direction of the moving contact, and the third magnetic steel is arranged above the contact gap between the two fixed contacts and the moving contact. The third magnetic steel is positioned above the contact gap, the third contact is closer to the fixed contact, the magnetic field intensity of the fixed contact can be increased, and the arc extinguishing capability of the high-voltage direct current relay can be improved.
Particularly, the first magnetic steel and the second magnetic steel respectively cover contact gaps of the two fixed contacts and the moving contact, and the widths of the first magnetic steel and the second magnetic steel are larger than that of the moving contact. The first magnetic steel and the second magnetic steel are covered on the contact spacing between the fixed contact and the moving contact, so that the first magnetic steel, the second magnetic steel and the contact arcing point are closer in distance, the magnetic field intensity at the arcing point can be increased, and the arc extinguishing performance can be improved.
Particularly, the shapes of the first magnetic steel and the second magnetic steel are the same, the first magnetic steel and the second magnetic steel are in a flat plate shape, and the third magnetic steel is in a cuboid shape. The first magnetic steel and the first magnetic steel are designed into a flat plate shape, so that the magnetic fields of the first magnetic steel and the second magnetic steel can completely cover the arcing point of the contact, and the magnetic field intensity of the arcing point of the contact is stronger.
Particularly, the ceramic cover is provided with a positioning groove matched with the third magnetic steel, and the third magnetic steel is arranged in the positioning groove and forms clamping fit between the third magnetic steel and the ceramic cover. The third magnetic steel and the ceramic cover are assembled in a clamping and matching mode, so that the assembly of the third magnetic steel and the ceramic cover is facilitated, and the assembly efficiency is higher.
Particularly, a limiting block is arranged on the first yoke iron clamp and the second yoke iron clamp corresponding to the first magnetic steel and the second magnetic steel respectively, a clamping cavity is formed between the limiting block and the outer wall of the ceramic cover, and the first magnetic steel and the second magnetic steel are arranged in the clamping cavity. The first yoke iron clamp and the second yoke iron clamp are assembled with the first magnetic steel and the second magnetic steel in a clamping and matching mode, and the assembly efficiency is higher.
Drawings
Fig. 1 is a perspective view of an embodiment of the present utility model.
Fig. 2 is an exploded view of an embodiment of the present utility model.
Fig. 3 is a cross-sectional view of an embodiment of the present utility model.
Fig. 4 is a perspective view of a ceramic cover according to an embodiment of the present utility model.
Detailed Description
As shown in fig. 1 to 4, the embodiment of the utility model is a ceramic high-voltage direct-current relay with a magnetic arc extinguishing structure, which comprises a shell 10, an electromagnetic driving mechanism 11, a ceramic cover 12 arranged on the electromagnetic driving mechanism 11, and a contact assembly 20 arranged in the ceramic cover 12, wherein the contact assembly 20 comprises a moving contact 21 and two fixed contacts 22 which are in linkage fit with the electromagnetic driving mechanism 11, a first magnetic steel group 30 and a second magnetic steel group 31 are respectively arranged at the contact points of the two fixed contacts 22 corresponding to the moving contact 21 outside the ceramic cover 12, the first magnetic steel group 30 comprises a first yoke iron clamp 301 and a first magnetic steel 302 arranged in the first yoke iron clamp 301, the second magnetic steel group 31 comprises a first yoke iron clamp 311 and a second magnetic steel 312 arranged in the first yoke iron clamp 311, a third magnetic steel 33 is arranged between the two fixed contacts 22 corresponding to the ceramic cover 12, and the polarity distribution directions of the first magnetic steel 302, the second magnetic steel 312 and the third magnetic steel 33 are the same. The first magnetic steel 302, the second magnetic steel 312 and the third magnetic steel 33 are distributed on the ceramic cover in a shape of a Chinese character 'pin'. The first magnetic steel, the second magnetic steel and the third magnetic steel are distributed in a delta shape, so that the distances between the first magnetic steel, the second magnetic steel and the third magnetic steel and the starting point of the contact point are closer, the magnetic field intensity of the starting point is enhanced, and the arc extinguishing capability of the high-voltage direct current relay is improved. The length direction of the two fixed contacts 22 is perpendicular to the length direction of the moving contact 21, and the third magnetic steel 33 is arranged above the contact gap between the two fixed contacts 22 and the moving contact 21. The third magnetic steel is positioned above the contact gap, the third contact is closer to the fixed contact, the magnetic field intensity of the fixed contact can be increased, and the arc extinguishing capability of the high-voltage direct current relay can be improved. The first magnetic steel 302 and the second magnetic steel 312 respectively cover contact gaps between the two fixed contacts 22 and the moving contact 21, and the widths of the first magnetic steel and the second magnetic steel are larger than the widths of the moving contacts. The first magnetic steel and the second magnetic steel are covered on the contact spacing between the fixed contact and the moving contact, so that the first magnetic steel, the second magnetic steel and the contact arcing point are closer in distance, the magnetic field intensity at the arcing point can be increased, and the arc extinguishing performance can be improved. The shapes of the first magnetic steel 302 and the second magnetic steel 312 are the same, the first magnetic steel 302 and the second magnetic steel 312 are flat plates, and the third magnetic steel 33 is cuboid. The first magnetic steel and the first magnetic steel are designed into a flat plate shape, so that the magnetic fields of the first magnetic steel and the second magnetic steel can completely cover the arcing point of the contact, and the magnetic field intensity of the arcing point of the contact is stronger.
As shown in fig. 3 and 4, the ceramic cover 12 is provided with a positioning groove 121 matched with the third magnetic steel 33, and the third magnetic steel 33 is disposed in the positioning groove 121 and forms a clamping fit between the third magnetic steel 33 and the ceramic cover 12. The third magnetic steel and the ceramic cover are assembled in a clamping and matching mode, so that the assembly of the third magnetic steel and the ceramic cover is facilitated, and the assembly efficiency is higher. The first yoke iron clamp 301 and the second yoke iron clamp 312 are respectively provided with a limiting block 300 corresponding to the first magnetic steel 302 and the second magnetic steel 312, a clamping cavity 3000 is formed between the limiting block 300 and the outer wall of the ceramic cover 12, and the first magnetic steel 302 and the second magnetic steel 312 are arranged in the clamping cavity 3000. The first yoke iron clamp and the second yoke iron clamp are assembled with the first magnetic steel and the second magnetic steel in a clamping and matching mode, and the assembly efficiency is higher.
The first magnetic steel, the second magnetic steel and the third magnetic steel are arranged outside the ceramic cover, the distance between the first magnetic steel, the second magnetic steel and the starting points of the two contact points is smaller, the magnetic leakage is smaller, the magnetic field intensity of the starting points can be increased, and the arc extinguishing capability is stronger. Therefore, the high-voltage direct-current relay has the advantages of simple structure, stable and reliable performance, strong magnetic field strength of an arcing point and strong arc extinguishing capability.
The foregoing is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. While the utility model has been described with reference to preferred embodiments, it is not intended to be limiting. Many possible variations and modifications of the disclosed technology can be made by anyone skilled in the art, or be modified to equivalent embodiments, without departing from the scope of the technology. Therefore, any simple modification, equivalent variation and modification of the above embodiments according to the technical substance of the present utility model shall fall within the scope of the technical solution of the present utility model.
Claims (7)
1. The utility model provides a ceramic formula high voltage direct current relay of magnetism arc extinguishing structure, includes casing, electromagnetic drive mechanism, sets up ceramic cover on electromagnetic drive mechanism, sets up the contact subassembly in ceramic cover, contact subassembly include with electromagnetic drive mechanism linkage complex moving contact, two static contacts, its characterized in that: the ceramic cover correspond two fixed contacts and moving contact's contact point department be provided with first magnet steel group, second magnet steel group respectively outward, first magnet steel group include first yoke iron clamp, set up the first magnet steel in first yoke iron clamp, the second magnet steel group include first yoke iron clamp, set up the second magnet steel in first yoke iron clamp, the ceramic cover on correspond two fixed contacts between department be provided with a third magnet steel at least, first magnet steel, second magnet steel, third magnet steel's polarity distribution direction the same.
2. The ceramic type high-voltage direct current relay of magnetic arc extinguishing structure according to claim 1, characterized in that: the first magnetic steel, the second magnetic steel and the third magnetic steel are distributed on the ceramic cover in a 'delta' shape.
3. The ceramic type high-voltage direct current relay of magnetic arc extinguishing structure according to claim 1 or 2, characterized in that: the length direction of the two fixed contacts is perpendicular to the length direction of the moving contact, and the third magnetic steel is arranged above the contact gap between the two fixed contacts and the moving contact.
4. The ceramic type high-voltage direct current relay of magnetic arc extinguishing structure according to claim 1 or 2, characterized in that: the first magnetic steel and the second magnetic steel respectively cover contact gaps of the two fixed contacts and the moving contact, and the widths of the first magnetic steel and the second magnetic steel are larger than that of the moving contact.
5. The ceramic type high-voltage direct current relay of magnetic arc extinguishing structure according to claim 1 or 2, characterized in that: the shapes of the first magnetic steel and the second magnetic steel are the same, the first magnetic steel and the second magnetic steel are flat plates, and the third magnetic steel is cuboid.
6. The ceramic type high-voltage direct current relay of magnetic arc extinguishing structure according to claim 1 or 2, characterized in that: the ceramic cover is provided with a positioning groove matched with the third magnetic steel, the third magnetic steel is arranged in the positioning groove, and the third magnetic steel is matched with the ceramic cover in a clamping way.
7. The ceramic type high-voltage direct current relay of magnetic arc extinguishing structure according to claim 1 or 2, characterized in that: the first yoke iron clamp and the second yoke iron clamp are respectively provided with a limiting block at the positions corresponding to the first magnetic steel and the second magnetic steel, a clamping cavity is formed between the limiting block and the outer wall of the ceramic cover, and the first magnetic steel and the second magnetic steel are arranged in the clamping cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321304241.6U CN219696350U (en) | 2023-05-25 | 2023-05-25 | Ceramic high-voltage direct-current relay with magnetic arc extinguishing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321304241.6U CN219696350U (en) | 2023-05-25 | 2023-05-25 | Ceramic high-voltage direct-current relay with magnetic arc extinguishing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219696350U true CN219696350U (en) | 2023-09-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321304241.6U Active CN219696350U (en) | 2023-05-25 | 2023-05-25 | Ceramic high-voltage direct-current relay with magnetic arc extinguishing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219696350U (en) |
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2023
- 2023-05-25 CN CN202321304241.6U patent/CN219696350U/en active Active
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