CN112542336A - High-voltage direct-current relay for magnetic steel arc extinction - Google Patents
High-voltage direct-current relay for magnetic steel arc extinction Download PDFInfo
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- CN112542336A CN112542336A CN202011342241.6A CN202011342241A CN112542336A CN 112542336 A CN112542336 A CN 112542336A CN 202011342241 A CN202011342241 A CN 202011342241A CN 112542336 A CN112542336 A CN 112542336A
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 321
- 239000010959 steel Substances 0.000 title claims abstract description 321
- 230000008033 biological extinction Effects 0.000 title claims description 13
- 230000003068 static effect Effects 0.000 claims abstract description 11
- 235000014676 Phragmites communis Nutrition 0.000 claims abstract description 9
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 38
- 229910052742 iron Inorganic materials 0.000 claims description 19
- 230000002093 peripheral effect Effects 0.000 claims description 11
- 238000007664 blowing Methods 0.000 claims description 5
- 230000000694 effects Effects 0.000 claims description 5
- 238000000034 method Methods 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000009826 distribution Methods 0.000 description 27
- 238000010586 diagram Methods 0.000 description 10
- 230000004048 modification Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
- H01H9/44—Means for extinguishing or preventing arc between current-carrying parts using blow-out magnet
- H01H9/443—Means for extinguishing or preventing arc between current-carrying parts using blow-out magnet using permanent magnets
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/54—Contact arrangements
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/54—Contact arrangements
- H01H50/56—Contact spring sets
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- Electromagnetism (AREA)
- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
The invention discloses a magnetic steel arc-extinguishing high-voltage direct-current relay, which comprises two static contacts and a movable reed, wherein the two static contacts are used for providing current inflow and current outflow respectively; magnetic steel components with middle positions capable of being in positive opposition to the contact fitting positions are respectively arranged at the two ends of the movable reed; and one surface of the magnetic steel component with polarity faces to the corresponding contact fitting position; the magnetic steel component is formed by combining two pieces of magnetic steel in a superposition or embedding or splicing mode, and the end part of one piece of magnetic steel at least appears in the middle position of the combined magnetic steel component. The invention can increase the magnetic field intensity of the middle position of the magnetic steel component to meet the arc extinguishing requirements of high voltage and heavy current, can ensure that the manufacturing cost of the product is not greatly increased, and can flexibly configure the arc extinguishing scheme according to the arc extinguishing requirements.
Description
Technical Field
The invention relates to a direct current relay, in particular to a magnetic steel arc extinguishing high-voltage direct current relay which is used for cutting off high-voltage and large-current direct current loads.
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 high-voltage direct-current relay is one of relays, and most of the existing high-voltage direct-current relays adopt a movable contact spring direct-acting structure, namely, the matching of two static contacts and one movable contact spring is utilized to realize that load current flows in from one static contact and flows out from the other static contact.
Along with the promotion demand of new energy automobile, energy storage project to system voltage, further improve the requirement to the anti high-voltage ability of electronic component, need bigger space, stronger magnetic field space on the switch arc extinguishing. The high-voltage direct-current relay in the prior art usually adopts magnetic steel for arc extinction, and a typical magnetic steel arc extinction arrangement mode is that two pieces of magnetic steel are arranged at the outer sides of two ends of the length of a movable reed, and U-shaped yoke clamps are respectively additionally arranged at the two pieces of magnetic steel, and fig. 1 is a schematic magnetic steel distribution diagram of the high-voltage direct-current relay in the prior art; as shown in fig. 1, the high-voltage direct-current relay includes two fixed contacts 100 and a movable spring 200, a piece of magnetic steel 300 is respectively disposed at the outer sides of the two ends of the length of the movable spring 200, a U-shaped yoke clip 400 is further mounted at the position of the magnetic steel 300, and the two ends of the U-shaped yoke clip 400 are respectively disposed at the two sides of the width of the movable spring 200 and are at the position opposite to the fixed contacts 100. As shown in fig. 1, the applicant finds through experiments that, in the magnetic steel 300, magnetic lines of force at the middle position are relatively rare, and magnetic lines of force at the two end positions are relatively dense, that is, the magnetic field strength at the middle position of the magnetic steel 300 is relatively weak, and the magnetic field strength at the two end positions of the magnetic steel 300 is relatively strong, however, when the magnetic steel 300 is distributed, the middle of the magnetic steel 300 is usually directly opposite to the contact, so that the two end positions of the magnetic steel 300 are often far away from the contact, and the arc extinguishing capability of the magnetic steel 300 is reduced. In order to improve the arc extinguishing capability, in the prior art, the arc extinguishing requirement is usually satisfied through the mode that increases the thickness of magnet steel or replace to the magnet steel of stronger magnetic field intensity, and the cost of manufacture that will cause the product like this certainly risees by a wide margin to be unfavorable for the competition of product.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a magnetic steel arc-extinguishing high-voltage direct-current relay, which can increase the magnetic field intensity of the middle position of a magnetic steel component through structural improvement so as to meet the arc-extinguishing requirements of high voltage and heavy current, can ensure that the manufacturing cost of a product cannot be greatly increased, and can flexibly configure an arc-extinguishing scheme according to the arc-extinguishing requirements.
The technical scheme adopted by the invention for solving the technical problems is as follows: a high-voltage direct-current relay for magnetic steel arc extinction comprises two static contacts and a movable reed, wherein the two static contacts are used for providing current inflow and current outflow respectively; magnetic steel components with the middle positions capable of being positively opposite to the contact matching positions are respectively arranged at the two ends of the movable spring piece, and one surface of each magnetic steel component with the polarity faces to the corresponding contact matching position; the magnetic steel component is formed by combining two pieces of magnetic steel in a superposition or embedding or splicing mode, and the end part of one piece of magnetic steel at least appears at the middle position of the combined magnetic steel component, so that the magnetic field intensity at the middle position of the combined magnetic steel component is enhanced by utilizing the magnetic field intensity at the end part of the piece of magnetic steel to be larger than the magnetic field intensity at the middle part of the piece of magnetic steel, and a better arc blowing effect is formed.
The two pieces of magnetic steel are one big and one small, the whole size of the small piece of magnetic steel is smaller than that of the big piece of magnetic steel, and the peripheral size of the small piece of magnetic steel is equivalent to the middle position of the big piece of magnetic steel; the small magnetic steel is superposed at the middle position of one surface of the large magnetic steel, which faces the contact, so that the end part of the small magnetic steel appears at the middle position of the combined magnetic steel component, and the magnetic field intensity at the middle position of the combined magnetic steel component is enhanced by utilizing the magnetic field intensity at the end part of the small magnetic steel to be greater than that at the middle part of the small magnetic steel.
The two pieces of magnetic steel are one big and one small, the peripheral size of the small piece of magnetic steel is smaller than that of the big piece of magnetic steel, and the peripheral size of the small piece of magnetic steel is equivalent to the middle position of the big piece of magnetic steel; the intermediate position of the one side of big piece magnet steel towards the contact is equipped with the recess, the fritter magnet steel is inlayed and is put in the recess, the tip of fritter magnet steel appears in the intermediate position that makes the magnet steel part after the combination to the magnetic field intensity that utilizes the magnetic field intensity of the tip of fritter magnet steel to be greater than the middle part of fritter magnet steel strengthens the magnetic field intensity of the intermediate position of the magnet steel part after the combination.
The depth dimension of the groove is the same as the thickness dimension of the large magnetic steel block, and the thickness dimension of the small magnetic steel block is the same as the depth dimension of the groove.
The depth dimension of the groove is the same as the thickness dimension of the large magnetic steel block, and the thickness dimension of the small magnetic steel block is larger than the depth dimension of the groove, so that the small magnetic steel block protrudes out of one surface of the large magnetic steel block facing the contact.
The two pieces of magnetic steel have the same size; the two pieces of magnetic steel are spliced together through the side faces, so that one end part of each of the two pieces of magnetic steel appears in the middle of the combined magnetic steel component, and the magnetic field intensity of the middle position of the combined magnetic steel component is enhanced by utilizing the magnetic field intensity of the end parts of the magnetic steel which is larger than the magnetic field intensity of the middle part of the magnetic steel.
The thickness and width dimensions of the two pieces of magnetic steel are the same, and the length dimensions are different; the two pieces of magnetic steel are spliced together in the length direction, and the spliced part is positioned in the area of the middle position of the combined magnetic steel component, so that the magnetic field intensity of the end part of the magnetic steel is larger than that of the middle part of the magnetic steel to enhance the magnetic field intensity of the middle position of the combined magnetic steel component.
The two magnetic steel components are respectively arranged at the outer sides of the two ends of the length of the movable spring.
The two magnetic steel components are also respectively provided with a U-shaped yoke iron clamp; the U-shaped bottom of the U-shaped yoke iron clamp is in contact with one surface of the corresponding magnetic steel component, which is back to the contact, two side arms of the U-shaped yoke iron clamp are respectively arranged on two sides of the width of the movable spring plate, and the corresponding contact is accommodated in the U-shaped opening of the U-shaped yoke iron clamp.
The four magnetic steel components are respectively arranged at two sides of the width of the movable reed and are right opposite to the corresponding contacts; and in the four magnetic steel components, the polarities of the surfaces, facing the contact, of the two magnetic steel components on the same side of the width of the movable spring piece are set to be the same, and the polarities of the surfaces, facing the contact, of the two magnetic steel components on different sides of the width of the movable spring piece are set to be different.
The four magnetic steel components are also respectively provided with two U-shaped yoke iron clamps; each U-shaped yoke iron clamp is respectively connected with two magnetic steel components, two side arms of the U shape of the U-shaped yoke iron clamp are respectively arranged at two sides of the width of the movable spring leaf and are respectively contacted with one surface of the two corresponding magnetic steel components back to the contact, and the U-shaped bottom of the U-shaped yoke iron clamp is positioned at the outer side of the corresponding end of the length of the movable spring leaf.
Compared with the prior art, the invention has the beneficial effects that:
the magnetic steel component is formed by combining two pieces of magnetic steel in a superposition or embedding or splicing mode, and the end part of at least one piece of magnetic steel is arranged in the middle of the combined magnetic steel component, so that the magnetic field intensity of the middle position of the combined magnetic steel component is enhanced by utilizing the magnetic field intensity of the end part of the piece of magnetic steel to be larger than the magnetic field intensity of the middle part of the piece of magnetic steel, and a better arc blowing effect is formed. The structure of the invention can increase the magnetic field intensity of the middle position of the magnetic steel component to meet the arc extinguishing requirements of high voltage and heavy current, can ensure that the manufacturing cost of the product is not greatly increased, and can flexibly configure the arc extinguishing scheme according to the arc extinguishing requirements.
The invention is further explained in detail with the accompanying drawings and the embodiments; however, the magnetic steel arc extinguishing high-voltage direct-current relay of the present invention is not limited to the embodiment.
Drawings
FIG. 1 is a schematic diagram of magnetic steel distribution of a high-voltage direct-current relay in the prior art;
FIG. 2 is a schematic diagram of magnetic steel distribution according to a first embodiment of the present invention;
FIG. 3 is a schematic perspective view of the magnetic steel distribution according to the first embodiment of the present invention;
FIG. 4 is a schematic diagram of magnetic steel distribution according to the second embodiment of the present invention;
FIG. 5 is a schematic perspective view of the magnetic steel distribution according to the second embodiment of the present invention;
FIG. 6 is a schematic diagram of magnetic steel distribution in a third embodiment of the present invention;
FIG. 7 is a schematic perspective view of the magnetic steel distribution of the third embodiment of the present invention;
FIG. 8 is a schematic diagram of magnetic steel distribution according to a fourth embodiment of the present invention;
FIG. 9 is a schematic perspective view of the magnetic steel distribution of the fourth embodiment of the present invention;
FIG. 10 is a schematic view of magnetic steel distribution according to the fifth embodiment of the present invention;
FIG. 11 is a schematic perspective view of the distribution of magnetic steel according to the fifth embodiment of the present invention;
FIG. 12 is a schematic diagram of magnetic steel distribution of the sixth embodiment of the present invention;
FIG. 13 is a schematic perspective view of the magnetic steel distribution of the sixth embodiment of the present invention;
FIG. 14 is a schematic diagram of magnetic steel distribution of the seventh embodiment of the present invention;
FIG. 15 is a schematic perspective view of the magnetic steel distribution of the seventh embodiment of the present invention;
FIG. 16 is a schematic view of magnetic steel distribution of the eighth embodiment of the present invention;
FIG. 17 is a schematic perspective view of the magnetic steel distribution of the eighth embodiment of the present invention;
FIG. 18 is a schematic magnetic steel distribution diagram of the ninth embodiment of the present invention;
FIG. 19 is a schematic perspective view of the distribution of magnetic steel according to the ninth embodiment of the present invention;
FIG. 20 is a schematic diagram of magnetic steel distribution of the tenth embodiment of the present invention;
fig. 21 is a schematic three-dimensional shape of magnetic steel distribution according to a tenth embodiment of the present invention.
FIG. 22 is a schematic view of magnetic steel distribution of the eleventh embodiment of the present invention;
FIG. 23 is a schematic perspective view of the magnetic steel distribution of the eleventh embodiment of the present invention;
FIG. 24 is a schematic view of the magnetic steel distribution of the twelfth embodiment of the invention;
fig. 25 is a schematic perspective view of the magnetic steel distribution according to the twelfth embodiment of the present invention.
Detailed Description
Example one
Referring to fig. 2 to 3, the magnetic steel arc extinguishing high-voltage direct-current relay of the invention includes two static contacts 1 and a movable reed 2, which are respectively used for providing current inflow and current outflow, and two ends of the movable reed 2 are respectively matched with the two static contacts 1; magnetic steel components 3 with the middle positions capable of being positively opposite to the contact matching positions are respectively arranged at the two ends of the movable spring leaf 2, and one surface with polarity of each magnetic steel component 3 faces to the corresponding contact matching position; the magnetic steel component 3 is formed by combining two pieces of magnetic steel 31 and 32, and the end part of one piece of magnetic steel at least appears at the middle position of the combined magnetic steel component 3, so that the magnetic field intensity at the middle position of the combined magnetic steel component is enhanced by utilizing the magnetic field intensity at the end part of the piece of magnetic steel which is larger than the magnetic field intensity at the middle part of the piece of magnetic steel, and a better arc blowing effect is formed.
In this embodiment, the two pieces of magnetic steel are one large and one small, and the whole size of the small piece of magnetic steel 32 is smaller than that of the large piece of magnetic steel 31, and the peripheral size of the small piece of magnetic steel 32 is equivalent to the middle position of the large piece of magnetic steel 31; the small magnetic steel 32 is superposed at the middle position of one surface of the large magnetic steel 31 facing the contact, so that the end part of the small magnetic steel 32 appears at the middle position of the combined magnetic steel component 3, and the magnetic field strength at the middle position of the combined magnetic steel component 3 is enhanced by utilizing the magnetic field strength at the end part of the small magnetic steel 32 which is larger than the magnetic field strength at the middle part of the small magnetic steel.
In this embodiment, the shapes of the large magnetic steel 31 and the small magnetic steel 32 are both rectangular, and the magnetic steel of the present invention includes but is not limited to rectangular, and may be in various shapes.
In this embodiment, there are two magnetic steel components 3, and the two magnetic steel components 3 are respectively disposed at the outer sides of the two ends of the length of the movable spring piece 2.
As shown in fig. 1, the magnetic field distribution of the magnetic steel of the conventional technology makes the magnetic field intensity at the central position significantly weaker than that at the end position, the invention superposes the small magnetic steel 32 at the middle position of the large magnetic steel 31, so that the end of the small magnetic steel 32 appears at the middle position of the combined magnetic steel component 3, thus the magnetic field intensity at the middle position of the combined magnetic steel component 3 can be enhanced by using the end of the small magnetic steel 32, in addition, because the small magnetic steel 32 is superposed at the middle position of the large magnetic steel 31, the thickness of the middle position of the magnetic steel component 3 is increased, the magnetic field intensity at the middle position of the magnetic steel component 3 is further enhanced, and the arc extinguishing capability can be significantly improved.
The high-voltage direct-current relay for arc extinction by the magnetic steel adopts the magnetic steel part 3 which is formed by combining the two pieces of magnetic steel 31 and 32 in a superposition mode, and the end part of the small piece of magnetic steel 32 appears at the middle position of the combined magnetic steel part 3, so that the magnetic field intensity at the middle position of the combined magnetic steel part 3 is enhanced by utilizing the magnetic field intensity at the end part of the small piece of magnetic steel 32 which is larger than the magnetic field intensity at the middle part of the small piece of magnetic steel, and a better arc blowing effect is formed. The structure of the invention can increase the magnetic field intensity of the middle position of the magnetic steel component to meet the arc extinguishing requirements of high voltage and heavy current, can ensure that the manufacturing cost of the product is not greatly increased, and can flexibly configure the arc extinguishing scheme according to the arc extinguishing requirements.
Example two
Referring to fig. 4 to 5, the high-voltage dc relay for arc extinction by magnetic steel of the present invention is different from the first embodiment in that, in the large magnetic steel 31 and the small magnetic steel 32, the peripheral size of the small magnetic steel 32 is smaller than that of the large magnetic steel 31, and the peripheral size of the small magnetic steel 32 is equivalent to the middle position of the large magnetic steel 31; the intermediate position of the one side of big piece magnet steel 31 towards the contact is provided with recess 311, little piece magnet steel 32 inlays and is put in recess 311, the tip of little piece magnet steel 32 appears in the intermediate position that makes magnet steel component 3 after the combination to the magnetic field intensity that utilizes the tip of little piece magnet steel 32 to be greater than the magnetic field intensity at the middle part of little piece magnet steel and strengthens the magnetic field intensity of the intermediate position of magnet steel component 3 after the combination.
In this embodiment, the depth of the groove 311 is the same as the thickness of the large magnetic steel 31, and the thickness of the small magnetic steel 32 is the same as the depth of the groove 311.
EXAMPLE III
Referring to fig. 6 to 7, the difference between the magnetic steel arc extinguishing high-voltage direct-current relay of the present invention and the first embodiment is that the thickness of the small magnetic steel 32 is greater than the depth of the groove 311, so that the small magnetic steel 32 protrudes from the surface of the large magnetic steel 31 facing the contact.
Example four
Referring to fig. 8 to 9, the high-voltage direct-current relay for arc extinction by magnetic steel of the present invention is different from the first embodiment in that the two magnetic steels 31 and 32 have the same size; the two magnetic steels 31 and 32 are spliced together through the side surfaces, so that one end part of each of the two magnetic steels 31 and 32 appears at the middle position of the combined magnetic steel component 3, and the magnetic field strength of the middle position of the combined magnetic steel component is enhanced by utilizing the magnetic field strength of the end part of the magnetic steel which is larger than the magnetic field strength of the middle part of the magnetic steel.
EXAMPLE five
Referring to fig. 10 to 11, the high-voltage direct-current relay for arc extinction by magnetic steel of the present invention is different from the first embodiment in that the thickness and width dimensions of the two magnetic steels 31 and 32 are the same, but the length dimension of the two magnetic steels is different, and the length dimension of the magnetic steel 31 is greater than the length dimension of the magnetic steel 32; the two pieces of magnetic steel 31 and 32 are spliced together in the length direction, and the spliced part is positioned in the area of the middle position of the combined magnetic steel component 3, so that the magnetic field strength of the middle position of the combined magnetic steel component is enhanced by using the magnetic field strength of the end parts of the magnetic steel 31 and 32 which is larger than the magnetic field strength of the middle part of the magnetic steel.
EXAMPLE six
Referring to fig. 12 to 13, the magnetic steel arc extinguishing high-voltage direct-current relay of the present invention is different from the first embodiment in that two magnetic steel components 3 are respectively provided with a U-shaped yoke clamp 4; the U-shaped bottom 41 of the U-shaped yoke clip 4 contacts with the corresponding surface of the magnetic steel component 3, which faces away from the contacts, and the two U-shaped side arms 42 of the U-shaped yoke clip 4 are respectively arranged at the two sides of the width of the movable spring piece 2, so that the corresponding contacts are accommodated in the U-shaped openings of the U-shaped yoke clip 4.
EXAMPLE seven
Referring to fig. 14 to 15, the high-voltage dc relay for arc extinction by magnetic steel of the present invention is different from the sixth embodiment in that, in the large magnetic steel 31 and the small magnetic steel 32, the peripheral size of the small magnetic steel 32 is smaller than that of the large magnetic steel 31, and the peripheral size of the small magnetic steel 32 is equivalent to the middle position of the large magnetic steel 31; the intermediate position of the one side of bold magnet steel 31 towards the contact is provided with recess 311, little magnet steel 32 inlays to be put in recess 311, the depth dimension of recess 311 with bold magnet steel 31's thickness dimension is the same, little magnet steel 32's thickness dimension with recess 311's depth dimension is the same.
Example eight
Referring to fig. 16 to 17, the difference between the magnetic steel arc extinguishing high-voltage direct-current relay of the present invention and the sixth embodiment is that the thickness of the small magnetic steel 32 is greater than the depth of the groove 311, so that the small magnetic steel 32 protrudes from the surface of the large magnetic steel 31 facing the contact.
Example nine
Referring to fig. 18 to 19, the high-voltage direct-current relay for arc extinction by magnetic steel of the present invention is different from the sixth embodiment in that the two magnetic steels 31 and 32 have the same size; the two magnetic steels 31 and 32 are spliced together through the side surfaces.
Example ten
Referring to fig. 20 to 21, the high-voltage direct-current relay for arc extinction by magnetic steel of the present invention is different from the sixth embodiment in that the thickness and width dimensions of the two magnetic steels 31 and 32 are the same, but the length dimension of the two magnetic steels is different, and the length dimension of the magnetic steel 31 is greater than the length dimension of the magnetic steel 32; the two magnetic steels 31 and 32 are spliced together in the length direction.
EXAMPLE eleven
Referring to fig. 22 to 23, the magnetic steel arc extinguishing high-voltage direct-current relay of the present invention is different from the first embodiment in that four magnetic steel components 3 are provided, and the four magnetic steel components 3 are respectively disposed on two sides of the width of the movable spring piece 2 and are opposite to the corresponding contacts; in the four magnetic steel components 3, the polarities of the surfaces, facing the contacts, of the two magnetic steel components on the same side of the width of the movable spring piece 2 are the same, and the polarities of the surfaces, facing the contacts, of the two magnetic steel components 3 on different sides of the width of the movable spring piece 2 are different.
Example twelve
Referring to fig. 24 to 25, the difference between the magnetic steel arc extinguishing high-voltage direct-current relay of the present invention and the eleventh embodiment is that two U-shaped yoke clamps 4 are further respectively disposed on the four magnetic steel components 3; each U-shaped yoke iron clamp 4 is respectively connected with two magnetic steel components 3, two U-shaped side arms 42 of the U-shaped yoke iron clamp 4 are respectively arranged at two sides of the width of the movable spring piece 2 and are respectively contacted with one surface of the two corresponding magnetic steel components 3 back to the contact, and the U-shaped bottom 41 of the U-shaped yoke iron clamp 4 is positioned at the outer side of the corresponding end of the length of the movable spring piece 2.
The foregoing is considered as illustrative of the preferred embodiments of the 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 be limited thereto. Those skilled in the art can make many possible variations and modifications to the disclosed embodiments, or equivalent modifications, without departing from the scope of the disclosed embodiments. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical spirit of the present invention should fall within the protection scope of the technical scheme of the present invention, unless the technical spirit of the present invention departs from the content of the technical scheme of the present invention.
Claims (11)
1. A high-voltage direct-current relay for magnetic steel arc extinction comprises two static contacts and a movable reed, wherein the two static contacts are used for providing current inflow and current outflow respectively; magnetic steel components with the middle positions capable of being positively opposite to the contact matching positions are respectively arranged at the two ends of the movable spring piece, and one surface of each magnetic steel component with the polarity faces to the corresponding contact matching position; the method is characterized in that: the magnetic steel component is formed by combining two pieces of magnetic steel in a superposition or embedding or splicing mode, and the end part of one piece of magnetic steel at least appears at the middle position of the combined magnetic steel component, so that the magnetic field intensity at the middle position of the combined magnetic steel component is enhanced by utilizing the magnetic field intensity at the end part of the piece of magnetic steel to be larger than the magnetic field intensity at the middle part of the piece of magnetic steel, and a better arc blowing effect is formed.
2. The magnetic steel arc extinguishing high-voltage direct-current relay according to claim 1, characterized in that: the two pieces of magnetic steel are one big and one small, the whole size of the small piece of magnetic steel is smaller than that of the big piece of magnetic steel, and the peripheral size of the small piece of magnetic steel is equivalent to the middle position of the big piece of magnetic steel; the small magnetic steel is superposed at the middle position of one surface of the large magnetic steel, which faces the contact, so that the end part of the small magnetic steel appears at the middle position of the combined magnetic steel component, and the magnetic field intensity at the middle position of the combined magnetic steel component is enhanced by utilizing the magnetic field intensity at the end part of the small magnetic steel to be greater than that at the middle part of the small magnetic steel.
3. The magnetic steel arc extinguishing high-voltage direct-current relay according to claim 1, characterized in that: the two pieces of magnetic steel are one big and one small, the peripheral size of the small piece of magnetic steel is smaller than that of the big piece of magnetic steel, and the peripheral size of the small piece of magnetic steel is equivalent to the middle position of the big piece of magnetic steel; the intermediate position of the one side of big piece magnet steel towards the contact is equipped with the recess, the fritter magnet steel is inlayed and is put in the recess, the tip of fritter magnet steel appears in the intermediate position that makes the magnet steel part after the combination to the magnetic field intensity that utilizes the magnetic field intensity of the tip of fritter magnet steel to be greater than the middle part of fritter magnet steel strengthens the magnetic field intensity of the intermediate position of the magnet steel part after the combination.
4. The magnetic steel arc extinguishing high-voltage direct-current relay according to claim 3, characterized in that: the depth dimension of the groove is the same as the thickness dimension of the large magnetic steel block, and the thickness dimension of the small magnetic steel block is the same as the depth dimension of the groove.
5. The magnetic steel arc extinguishing high-voltage direct-current relay according to claim 3, characterized in that: the depth dimension of the groove is the same as the thickness dimension of the large magnetic steel block, and the thickness dimension of the small magnetic steel block is larger than the depth dimension of the groove, so that the small magnetic steel block protrudes out of one surface of the large magnetic steel block facing the contact.
6. The magnetic steel arc extinguishing high-voltage direct-current relay according to claim 1, characterized in that: the two pieces of magnetic steel have the same size; the two pieces of magnetic steel are spliced together through the side faces, so that one end part of each of the two pieces of magnetic steel appears in the middle of the combined magnetic steel component, and the magnetic field intensity of the middle position of the combined magnetic steel component is enhanced by utilizing the magnetic field intensity of the end parts of the magnetic steel which is larger than the magnetic field intensity of the middle part of the magnetic steel.
7. The magnetic steel arc extinguishing high-voltage direct-current relay according to claim 1, characterized in that: the thickness and width dimensions of the two pieces of magnetic steel are the same, and the length dimensions are different; the two pieces of magnetic steel are spliced together in the length direction, and the spliced part is positioned in the area of the middle position of the combined magnetic steel component, so that the magnetic field intensity of the end part of the magnetic steel is larger than that of the middle part of the magnetic steel to enhance the magnetic field intensity of the middle position of the combined magnetic steel component.
8. A magnetic steel arc extinguishing high voltage direct current relay according to any one of claims 1 to 7, characterized in that: the two magnetic steel components are respectively arranged at the outer sides of the two ends of the length of the movable spring.
9. The magnetic steel arc extinguishing high-voltage direct-current relay according to claim 8, characterized in that: the two magnetic steel components are also respectively provided with a U-shaped yoke iron clamp; the U-shaped bottom of the U-shaped yoke iron clamp is in contact with one surface of the corresponding magnetic steel component, which is back to the contact, two side arms of the U-shaped yoke iron clamp are respectively arranged on two sides of the width of the movable spring plate, and the corresponding contact is accommodated in the U-shaped opening of the U-shaped yoke iron clamp.
10. A magnetic steel arc extinguishing high voltage direct current relay according to any one of claims 1 to 7, characterized in that: the four magnetic steel components are respectively arranged at two sides of the width of the movable reed and are right opposite to the corresponding contacts; and in the four magnetic steel components, the polarities of the surfaces, facing the contact, of the two magnetic steel components on the same side of the width of the movable spring piece are set to be the same, and the polarities of the surfaces, facing the contact, of the two magnetic steel components on different sides of the width of the movable spring piece are set to be different.
11. The magnetic steel arc extinguishing high-voltage direct-current relay according to claim 10, characterized in that: the four magnetic steel components are also respectively provided with two U-shaped yoke iron clamps; each U-shaped yoke iron clamp is respectively connected with two magnetic steel components, two side arms of the U shape of the U-shaped yoke iron clamp are respectively arranged at two sides of the width of the movable spring leaf and are respectively contacted with one surface of the two corresponding magnetic steel components back to the contact, and the U-shaped bottom of the U-shaped yoke iron clamp is positioned at the outer side of the corresponding end of the length of the movable spring leaf.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202011342241.6A CN112542336A (en) | 2020-11-25 | 2020-11-25 | High-voltage direct-current relay for magnetic steel arc extinction |
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| CN202011342241.6A CN112542336A (en) | 2020-11-25 | 2020-11-25 | High-voltage direct-current relay for magnetic steel arc extinction |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109920700A (en) * | 2018-12-31 | 2019-06-21 | 浙江英洛华新能源科技有限公司 | High magnetic force relay |
| CN111463986A (en) * | 2020-05-11 | 2020-07-28 | 浙江省东阳市东磁诚基电子有限公司 | Long-life quick-response linear vibration motor and implementation method thereof |
| CN213635773U (en) * | 2020-11-25 | 2021-07-06 | 厦门宏发电力电器有限公司 | High-voltage direct-current relay for magnetic steel arc extinction |
-
2020
- 2020-11-25 CN CN202011342241.6A patent/CN112542336A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109920700A (en) * | 2018-12-31 | 2019-06-21 | 浙江英洛华新能源科技有限公司 | High magnetic force relay |
| CN111463986A (en) * | 2020-05-11 | 2020-07-28 | 浙江省东阳市东磁诚基电子有限公司 | Long-life quick-response linear vibration motor and implementation method thereof |
| CN213635773U (en) * | 2020-11-25 | 2021-07-06 | 厦门宏发电力电器有限公司 | High-voltage direct-current relay for magnetic steel arc extinction |
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