CN219677151U - Novel high-voltage direct-current relay resistant to capacitive load - Google Patents
Novel high-voltage direct-current relay resistant to capacitive load Download PDFInfo
- Publication number
- CN219677151U CN219677151U CN202320707652.3U CN202320707652U CN219677151U CN 219677151 U CN219677151 U CN 219677151U CN 202320707652 U CN202320707652 U CN 202320707652U CN 219677151 U CN219677151 U CN 219677151U
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- Prior art keywords
- tin oxide
- movable
- silver tin
- main contact
- assembly
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- IVQODXYTQYNJFI-UHFFFAOYSA-N oxotin;silver Chemical compound [Ag].[Sn]=O IVQODXYTQYNJFI-UHFFFAOYSA-N 0.000 claims abstract description 61
- 238000005476 soldering Methods 0.000 claims abstract description 53
- 230000003068 static effect Effects 0.000 claims abstract description 29
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 18
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 8
- 229910052802 copper Inorganic materials 0.000 claims description 8
- 239000010949 copper Substances 0.000 claims description 8
- 238000003466 welding Methods 0.000 description 14
- 230000004927 fusion Effects 0.000 description 6
- 230000008018 melting Effects 0.000 description 4
- 238000002844 melting Methods 0.000 description 4
- 229910052742 iron Inorganic materials 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
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Abstract
The utility model discloses a novel capacitive load resistant high-voltage direct current relay, which comprises: the main contact assembly comprises a main contact and a silver tin oxide cylinder static soldering lug, the tail end of the main contact is provided with the silver tin oxide cylinder static soldering lug, the main contact penetrates through the top surface of the arc extinguishing bin, and the tail end of the main contact is positioned in the arc extinguishing bin; the coil assembly is positioned at the bottom end of the interior of the arc extinguishing bin, an iron core is arranged on the inner side of the coil assembly, and a pushing rod is arranged in the iron core; the movable contact point assembly is positioned at the top end of the pushing rod and comprises; a movable contact and a silver tin oxide movable soldering lug; through the arrangement of the silver tin oxide cylindrical static soldering lug and the silver tin oxide movable soldering lug, the main contact assembly and the movable contact assembly are not easy to wear when in contact, and the phenomenon that the main contact assembly and the movable contact assembly are heated and adhered under the condition of instantaneous short-circuit current during working is avoided.
Description
Technical Field
The utility model relates to the technical field of relays, in particular to a novel high-voltage direct-current relay resistant to capacitive load.
Background
The existing high-voltage direct-current relay mainly comprises a main contact and a movable contact assembly, wherein the movable contact assembly is combined with a magnetic circuit part formed by a coil, and the movable contact assembly comprises a push rod, a movable contact and a movable magnetic core. The relay is used as a switching element and applied to a capacitive load circuit, instantaneous short-circuit current can appear in the capacitive load circuit during working, in the prior art, an oxygen-free copper material is adopted for a main contact and a movable contact, the oxygen-free copper is low in hardness, low in melting point and poor in wear resistance, and in the capacitive load circuit, the instantaneous short-circuit current causes contact fusion welding, contact adhesion appears, and the service life of the relay is influenced.
In the prior art, the main contact and the movable contact of the relay are of an integrated forging structure made of the same materials, so that the contact surfaces of the main contact and the movable contact are lack of protection, the contact fusion welding is easily caused by instantaneous short-circuit current, contact adhesion occurs, and the relay is invalid.
Disclosure of Invention
The utility model aims to provide a novel capacitive load resistant high-voltage direct current relay, which solves the following technical problems:
the contact surfaces of the main contact and the movable contact of the conventional relay lack protection, and the instantaneous short-circuit current is easy to cause contact fusion welding and contact adhesion.
The aim of the utility model can be achieved by the following technical scheme:
a novel high voltage dc relay resistant to capacitive loading, comprising:
the main contact assembly comprises a main contact and a silver tin oxide cylinder static soldering lug, the tail end of the main contact is provided with the silver tin oxide cylinder static soldering lug, the main contact penetrates through the top surface of the arc extinguishing bin, and the tail end of the main contact is positioned in the arc extinguishing bin;
the coil assembly is positioned at the bottom end of the interior of the arc extinguishing bin, an iron core is arranged on the inner side of the coil assembly, and a pushing rod is arranged in the iron core;
the movable contact point assembly is positioned at the top end of the pushing rod and comprises; the movable contact is arranged as a rectangular oxygen-free copper flat plate with a boss in the middle, and the top end of the movable contact is provided with a silver tin oxide movable soldering lug corresponding to the silver tin oxide cylindrical static soldering lug.
As a further scheme of the utility model: the silver tin oxide movable welding pieces are arranged in two, and the top ends of the two silver tin oxide movable welding pieces are flush with the top ends of the middle bosses of the movable contacts.
As a further scheme of the utility model: the inside of arc extinguishing storehouse is provided with the yoke iron plate, iron core and coil pack are located the below of yoke iron plate.
As a further scheme of the utility model: the yoke plate is provided with a through groove, and the pushing rod penetrates through the inner side of the through groove.
As a further scheme of the utility model: the top end of the yoke iron plate is provided with an annular support.
As a further scheme of the utility model: and a reset spring is arranged on the outer side of the pushing rod.
The utility model has the beneficial effects that:
(1) The main contact assembly is formed by welding and combining the main contact and the silver tin oxide cylindrical static soldering lug, the silver tin oxide cylindrical static soldering lug is arranged at the bottom end of the main contact, the silver tin oxide cylindrical static soldering lug is high in hardness and melting point, good in wear resistance and not easy to cause adhesion of contacts due to fusion welding, and meanwhile, the arrangement of the silver tin oxide cylindrical static soldering lug plays a good role in protecting the main contact, so that the contact surface of the main contact assembly with the movable contact assembly is firmer, and the main contact assembly has better performance.
(2) The movable contact assembly is formed by combining the movable contact of the oxygen-free copper flat plate and the silver tin oxide movable soldering lug at the bottom end of the movable contact, the movable contact adopts a structure with a convex middle part, the silver tin oxide movable soldering lug is welded at the position, close to the two ends, of the top end of the movable contact, the height of the silver tin oxide movable soldering lug of the movable contact assembly is equal to that of the top surface of a boss in the middle of the movable contact after welding, and the silver tin oxide movable soldering lug enables the movable contact assembly to have stronger hardness and performance. Through the arrangement of the silver tin oxide cylindrical static soldering lug and the silver tin oxide movable soldering lug, the main contact assembly and the movable contact assembly are not easy to wear when in contact, and the phenomenon that the main contact assembly and the movable contact assembly are heated and adhered under the condition of instantaneous short-circuit current during working is avoided.
Drawings
The utility model is further described below with reference to the accompanying drawings.
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic diagram of the structure of the main contact assembly of the present utility model;
FIG. 3 is a schematic view of the structure of a silver tin oxide cylindrical static soldering lug of the present utility model;
fig. 4 is a schematic view of the structure of the movable contact of the present utility model;
fig. 5 is a schematic structural view of a silver tin oxide movable lug according to the utility model.
In the figure: 1. a main contact assembly; 101. a main contact; 102. silver tin oxide cylinder static soldering lug; 2. arc extinguishing bin; 3. an iron core; 4. a coil assembly; 5. a yoke plate; 6. an annular support; 7. a push rod; 8. a movable contact assembly; 801. a movable contact; 802. silver tin oxide movable soldering lug; 9. and (5) through grooves.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1-5, the present utility model is a novel anti-capacitive load high voltage dc relay, comprising:
the main contact assembly 1, the main contact assembly 1 includes: the main contact 101 and the silver tin oxide cylindrical static soldering lug 102, wherein the silver tin oxide cylindrical static soldering lug 102 is arranged at the tail end of the main contact 101, the main contact 101 penetrates through the top surface of the arc extinguishing bin 2, and the tail end of the main contact 101 is positioned in the arc extinguishing bin 2;
the coil assembly 4 is positioned at the inner bottom end of the arc extinguishing bin 2, an iron core 3 is arranged at the inner side of the coil assembly 4, and a push rod 7 is arranged in the iron core 3;
the movable contact point assembly 8, the movable contact point assembly 8 is positioned at the top end of the pushing rod 7, and the movable contact point assembly 8 comprises; movable contact 801 and silver tin oxide movable lug 802, movable contact 801 sets up to the rectangle oxygen free copper flat board of middle part boss, and the top of movable contact 801 is provided with silver tin oxide movable lug 802 that corresponds with silver tin oxide cylinder static lug 102.
Specifically, the main contact component 1 is formed by welding and combining the main contact 101 and the silver tin oxide cylinder static soldering lug 102, the silver tin oxide cylinder static soldering lug 102 is arranged at the bottom end of the main contact 101, the silver tin oxide cylinder static soldering lug 102 has high hardness and high melting point, and good wear resistance, and is not easy to generate fusion welding to cause contact adhesion, meanwhile, the silver tin oxide cylinder static soldering lug 102 plays a role in protecting the main contact 101, so that the contact surface of the main contact component 1 with the movable contact component 8 is firmer.
The movable contact assembly 8 is formed by combining a movable contact 801 of an oxygen-free copper flat plate and a silver tin oxide movable soldering lug 802 at the bottom end of the movable contact 801, the movable contact 801 adopts a structure with a convex middle part, the silver tin oxide movable soldering lug 802 is welded at the top end of the movable contact 801 and is close to the two ends, the height of the silver tin oxide movable soldering lug 802 of the movable contact assembly 8 is equal to that of the top surface of a boss in the middle of the movable contact 801 after welding, and the silver tin oxide movable soldering lug 802 enables the movable contact assembly 8 to have stronger hardness and performance.
By arranging the silver tin oxide cylindrical static soldering lug 102 and the silver tin oxide movable soldering lug 802, the main contact assembly 1 and the movable contact assembly 8 are not easy to wear when in contact, and the main contact assembly 1 and the movable contact assembly 8 are prevented from being heated and adhered when instant short-circuit current occurs.
In one embodiment of the present utility model, two silver tin oxide movable tabs 802 are provided, and the top ends of the two silver tin oxide movable tabs 802 are flush with the top ends of the middle bosses of the movable contact 801.
Specifically, the top end of the silver tin oxide movable soldering lug 802 is flush with the top end of the middle boss of the movable contact 801, so that the top end of the movable contact assembly 8 is smoother, and the combination of the silver tin oxide movable soldering lug 802 and the movable contact 801 is firmer.
In one embodiment of the present utility model, the inside of the arc extinguishing chamber 2 is provided with a yoke plate 5, and the iron core 3 and the coil assembly 4 are located below the yoke plate 5.
Further, a through groove 9 is provided in the yoke plate 5, and the push rod 7 penetrates through the inside of the through groove 9.
In one embodiment of the present utility model, the top end of the yoke plate 5 is provided with an annular seat 6.
Specifically, the annular support 6 is located at the top end of the yoke plate 5, and plays a role in supporting and reinforcing the yoke plate 5.
In one embodiment of the utility model, the outside of the push rod 7 is provided with a return spring.
The working principle of the utility model is as follows: when the novel high-performance high-voltage power supply is used, the main contact assembly 1 is formed by welding and combining the main contact 101 and the silver tin oxide cylindrical static soldering lug 102, the silver tin oxide cylindrical static soldering lug 102 is arranged at the bottom end of the main contact 101, the silver tin oxide cylindrical static soldering lug 102 is high in hardness and melting point and good in wear resistance, and contacts are not easy to adhere due to fusion welding, and meanwhile, the contact surface of the main contact assembly 1 with the movable contact assembly 8 is firmer due to the arrangement of the silver tin oxide cylindrical static soldering lug 102, so that the main contact assembly 1 has better performance;
the movable contact assembly 8 is formed by combining a movable contact 801 of an oxygen-free copper flat plate and a silver tin oxide movable soldering lug 802 at the bottom end of the movable contact 801, the movable contact 801 adopts a structure with a convex middle part, the silver tin oxide movable soldering lug 802 is welded at the top end of the movable contact 801 and is close to the two ends, the height of the silver tin oxide movable soldering lug 802 of the movable contact assembly 8 is equal to that of the top surface of a boss in the middle of the movable contact 801 after welding, and the silver tin oxide movable soldering lug 802 enables the movable contact assembly 8 to have stronger hardness and performance. By arranging the silver tin oxide cylindrical static soldering lug 102 and the silver tin oxide movable soldering lug 802, the main contact assembly 1 and the movable contact assembly 8 are not easy to wear when in contact, and the main contact assembly 1 and the movable contact assembly 8 are prevented from being heated and adhered when instant short-circuit current occurs.
In the description of the present utility model, it should be understood that the terms "upper," "lower," "left," "right," and the like indicate an orientation or a positional relationship based on that shown in the drawings, and are merely for convenience of description and for simplifying the description, and do not indicate or imply that the apparatus or element in question must have a specific orientation, as well as a specific orientation configuration and operation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.
In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
The foregoing describes one embodiment of the present utility model in detail, but the description is only a preferred embodiment of the present utility model and should not be construed as limiting the scope of the utility model. All equivalent changes and modifications within the scope of the present utility model are intended to be covered by the present utility model.
Claims (6)
1. A novel high voltage dc relay resistant to capacitive loading, comprising:
a main contact assembly (1), the main contact assembly (1) comprising: the device comprises a main contact (101) and a silver tin oxide cylindrical static soldering lug (102), wherein the silver tin oxide cylindrical static soldering lug (102) is arranged at the tail end of the main contact (101), the main contact (101) penetrates through the top surface of an arc extinguishing bin (2), and the tail end of the main contact (101) is positioned in the arc extinguishing bin (2);
the coil assembly (4), the coil assembly (4) is located at the bottom end of the inside of the arc extinguishing bin (2), an iron core (3) is arranged on the inner side of the coil assembly (4), and a pushing rod (7) is arranged in the iron core (3);
a movable contact assembly (8), the movable contact assembly (8) being located at the top end of the push rod (7), the movable contact assembly (8) comprising; the movable contact (801) and silver tin oxide movable soldering lug (802), the movable contact (801) is arranged to be a rectangular oxygen-free copper flat plate with a boss in the middle, and the top end of the movable contact (801) is provided with the silver tin oxide movable soldering lug (802) corresponding to the silver tin oxide cylindrical static soldering lug (102).
2. The novel capacitive load resistant high-voltage direct current relay according to claim 1, wherein two silver tin oxide movable soldering lugs (802) are arranged in total, and the top ends of the two silver tin oxide movable soldering lugs (802) are flush with the top ends of middle bosses of the movable contacts (801).
3. The novel capacitive load resistant high-voltage direct current relay according to claim 1, wherein a yoke plate (5) is arranged in the arc extinguishing bin (2), and the iron core (3) and the coil assembly (4) are located below the yoke plate (5).
4. A novel capacitive load resistant high voltage direct current relay according to claim 3, characterized in that the yoke plate (5) is provided with a through slot (9), and the push rod (7) penetrates the inner side of the through slot (9).
5. A novel capacitive load resistant high voltage direct current relay according to claim 3, characterized in that the top end of the yoke plate (5) is provided with a ring-shaped abutment (6).
6. A novel capacitive load resistant high voltage direct current relay according to claim 1, characterized in that the outside of the push rod (7) is provided with a return spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320707652.3U CN219677151U (en) | 2023-04-03 | 2023-04-03 | Novel high-voltage direct-current relay resistant to capacitive load |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320707652.3U CN219677151U (en) | 2023-04-03 | 2023-04-03 | Novel high-voltage direct-current relay resistant to capacitive load |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219677151U true CN219677151U (en) | 2023-09-12 |
Family
ID=87895648
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320707652.3U Active CN219677151U (en) | 2023-04-03 | 2023-04-03 | Novel high-voltage direct-current relay resistant to capacitive load |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219677151U (en) |
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2023
- 2023-04-03 CN CN202320707652.3U patent/CN219677151U/en active Active
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| GR01 | Patent grant |