CN114695021A - Relay with main contact working state detection function - Google Patents
Relay with main contact working state detection function Download PDFInfo
- Publication number
- CN114695021A CN114695021A CN202210353346.4A CN202210353346A CN114695021A CN 114695021 A CN114695021 A CN 114695021A CN 202210353346 A CN202210353346 A CN 202210353346A CN 114695021 A CN114695021 A CN 114695021A
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- Prior art keywords
- main contact
- relay
- magnet
- movable
- magnetic
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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- 238000001514 detection method Methods 0.000 title claims abstract description 39
- 235000014676 Phragmites communis Nutrition 0.000 claims abstract description 59
- 230000000694 effects Effects 0.000 claims abstract description 3
- 238000002955 isolation Methods 0.000 claims description 19
- 230000000903 blocking effect Effects 0.000 claims 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 230000008033 biological extinction Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 238000007885 magnetic separation Methods 0.000 description 2
- 230000005389 magnetism Effects 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- BGPVFRJUHWVFKM-UHFFFAOYSA-N N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] Chemical compound N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] BGPVFRJUHWVFKM-UHFFFAOYSA-N 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/08—Indicators; Distinguishing marks
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/54—Contact arrangements
Abstract
The invention relates to a relay, in particular to a relay with a main contact working state detection function. The utility model provides a relay with main contact operating condition detects function, its characterized in that includes the casing, be equipped with main contact and main contact operating condition detection subassembly in the casing, the main contact sets up on the movable reed and is located between two main magnets of relative setting, main contact operating condition detection subassembly is located the movable reed downside, main contact operating condition detection subassembly is including detecting with magnet and tongue tube, the tongue tube is equipped with at a distance from magnetic structure with the main magnet, the movable reed links with the tongue tube or detects with the magnet, and when the movable reed goes up and down, the tongue tube switches on or breaks off under the effect of detecting with the magnet. The invention has the advantages of more accurate detection of the working state of the main contact and convenience for realizing miniaturization of the relay.
Description
Technical Field
The invention relates to a high-voltage direct-current relay, in particular to a relay with a main contact working state detection function.
Background
In order to detect the working state of a main contact, Chinese patent with application number 201821786954.X discloses a relay, which comprises a shell, wherein a movable contact plate is arranged in the shell, the movable contact plate is provided with the main contact, a first permanent magnet corresponding to a first reed pipe and a second permanent magnet corresponding to a second reed pipe are arranged on the lower side of the movable contact plate, and the first reed pipe and the second reed pipe are fixed on the outer wall of the shell through a mounting bracket.
The above scheme has the following defects: the reed pipe used for inducing the magnetic field generated by the permanent magnet is placed on the outer side of the shell, the shell plays a certain role in shielding the magnetic field of the permanent magnet, the magnetic field on the outer wall of the relay is not shielded outside the shell, and the reed pipe is easily subjected to the action of the external magnetic field of the relay to generate misjudgment; in order to facilitate arc extinction, an arc extinction magnet is arranged in the conventional relay, and compared with a first permanent magnet and a second permanent magnet, the arc extinction magnet is closer to the reed switch, so that the reed switch is easy to misjudge; the reed switch is positioned on the outer side of the shell through the mounting bracket, so that the width of the relay can be increased, and the miniaturization of the relay is influenced; .
Disclosure of Invention
The invention aims to provide a relay which can detect the working state of a main contact more accurately and does not increase the volume.
In order to achieve the purpose, the invention adopts the following technical scheme: the utility model provides a relay with main contact operating condition detects function, includes the casing, be equipped with main contact and main contact operating condition detection subassembly in the casing, main contact sets up on the movable reed and lies in between two main magnets of relative setting, main contact operating condition detection subassembly is located the movable reed downside, main contact operating condition detection subassembly is including detecting with magnet and tongue tube, be equipped with magnetic isolation structure between tongue tube and main magnet, the movable reed links with the tongue tube or detects with the magnet, when the movable reed goes up and down, the tongue tube switches on or breaks off under the effect of detecting with the magnet.
The reed switch and the magnet for detection are arranged on the lower side of the movable reed, the magnet for detection is closest to the reed switch, a magnetic isolation structure is arranged between the magnet for detection and the main magnet for arc extinction, and a magnetic field generated by the main magnet cannot influence the reed switch; and the reed switch is arranged in a cavity formed by the shell; the reed switch is not easily influenced by an external magnetic field, and the detection precision of the working state of the main contact can be improved. And because the main contact operating condition detection subassembly all sets up in the casing, can not cause the relay width to increase, can not influence the volume of relay, can not influence the miniaturization of relay. The invention has the advantages of more accurate detection of the working state of the main contact and convenience for realizing miniaturization of the relay.
Preferably, the magnetic isolation structure comprises a magnetic isolation block with a surrounding cross section, the magnetic isolation block is provided with a through groove which vertically penetrates through, and the reed pipe is located in the through groove formed by the magnetic isolation block. Through setting up the magnetic isolation piece that the cross-section is the enclosure shape to carry out electromagnetic isolation around to the tongue tube, in order to avoid main magnet to cause the influence to the tongue tube. Wherein, the magnetic isolating block can be made of metal such as iron.
Preferably, a yoke plate is arranged on the lower side of the movable spring, a positioning plate is arranged on the upper side of the yoke plate, the positioning plate is provided with a positioning block extending upwards, the positioning block forms an upwards-opened accommodating groove, and the magnetic isolating block is arranged in the accommodating groove. Through setting up the locating plate, and be equipped with the locating piece on the locating plate to the location of magnetic isolation piece is fixed.
Preferably, the lower end of the side wall of the magnetic separation block is provided with a limiting hole for a lead to pass through, the limiting hole penetrates through the magnetic separation block downwards, and the lead is limited between the wall of the limiting hole and the yoke plate. The above arrangement is used for fixing the reed switch. The reed switch pin is connected with the lead, and then the reed switch is fixed in a lead fixing mode. The lead wire may be compressed between the magnetism isolating block and the yoke plate.
Preferably, the reed pipe and the magnetic isolation block are fixed by dispensing.
Preferably, the magnet for detection is fixed on the lower side of the movable reed through a connecting piece, one end of the connecting piece wraps the magnet for detection, and the other end of the connecting piece is fixed with the movable reed. The connecting piece can be fixed with the movable spring piece by various modes such as welding fixation, glue dispensing fixation, riveting fixation and the like. One end of the connecting piece is wrapped with the magnet for detection, so that the magnet for detection can be prevented from being separated from the connecting piece.
Preferably, a main contact working state detection assembly is arranged below one of two opposite sides of the movable spring, and a spring is connected between the lower side of the other opposite side of the movable spring and the yoke plate. And the reed pipes are not required to be arranged on the two sides of the movable reed, so that the cost can be reduced. Through setting up the spring to the height at balanced movable reed both ends, in order to guarantee relay stability in use.
Preferably, the positioning plate is provided with a guide groove opened upward to guide the wire. The arrangement is used for abdicating the conducting wire, so that the conducting wire electrically connected with the reed switch can extend out of the shell conveniently.
The invention has the advantages of more accurate detection of the working state of the main contact and convenience for realizing miniaturization of the relay.
Drawings
FIG. 1 is a schematic structural diagram of the present invention;
FIG. 2 is another schematic structural view of the present invention;
FIG. 3 is a schematic structural diagram of the magnetic isolating block of the present invention.
Detailed Description
The invention is further described below with reference to the figures and specific embodiments.
As shown in fig. 1 to 3, the present invention discloses a relay with a main contact working state detection function, which comprises a housing (not shown in the figures), wherein the housing forms a containing cavity, a yoke plate 11 is arranged in the containing cavity, a main contact 12, a movable reed 13 and a main contact working state detection assembly are arranged on the upper side of the yoke plate, the main contact 12 is arranged on the movable reed 13, a fixed contact (not shown in the figures) which is fixed with the housing and corresponds to the main contact one by one is arranged above the main contact 12, main magnets 14 are arranged on the front and back opposite sides of the main contact 12, the movable reed 13 is fixed with the upper end of a push rod 15, a magnetic circuit part (not shown in the figures) is arranged on the lower side of the yoke plate 11, and the push rod 15 rises under the action of the magnetic circuit part to drive the movable reed 13 and the main contact 12 to move.
The main contact working state detection assembly is positioned on the lower side of the movable reed 13 and comprises a magnet 2 for detection and a reed pipe 3, a magnetism isolating structure is arranged between the reed pipe 3 and the main magnet 4, the movable reed 13 is linked with the magnet 2 for detection, and when the movable reed 13 goes up and down, the reed pipe 3 is switched on or off under the action of the magnet 2 for detection. The magnetic isolation structure comprises a magnetic isolation block 5 with a surrounding cross section, the magnetic isolation block 5 is provided with a through groove 51 which penetrates through the magnetic isolation block from top to bottom, and the reed pipe 3 is positioned in the through groove 51 formed by the magnetic isolation block 5. The detection magnet 2 is fixed on the lower side of the movable spring 13 through the connecting piece 21, one end of the connecting piece 21 wraps the detection magnet 2, and the other end of the connecting piece 21 is riveted and fixed with the movable spring 12.
The upper side of the yoke iron plate 11 is provided with a positioning plate 16, the positioning plate 16 is provided with a positioning block 161 which extends upwards, the positioning block 161 forms an accommodating groove which is opened upwards, and the magnetic isolation block 5 is tightly matched in the accommodating groove. The lower end of the side wall of the magnetic isolation block 5 is provided with a limiting hole 52 for a lead (not shown in the figure) to pass through, the limiting hole 51 penetrates through the magnetic isolation block downwards, and the lead is limited between the hole wall of the limiting hole 52 and the positioning plate 16. Wherein, wire one end is connected with pin 31 of tongue tube 3, and the wire other end extends to the relay outside. Wherein, the conducting wire, the reed pipe 3 and the magnetic isolating block 5 are fixed by dispensing. Wherein the positioning plate 16 is provided with a guide groove 162 opened upward to guide the wire.
A main contact working state detection assembly is arranged below one of two opposite sides of the movable reed 12, and a spring 17 is connected between the lower part of the other opposite side of the movable reed 12 and the positioning plate 16. Wherein the spring 17 is a compression spring.
When the relay is not used, the reed switch is conducted under the action of the magnetic field of the detection magnet, and an electric signal conducted by the reed switch is transmitted out through the conducting wire so as to obtain the working state that the main contact is not in contact communication with the static contact.
When the relay is electrified to electrify the coil of the magnetic circuit part, the push rod is enabled to rise and drive the movable reed to move upwards, the magnet for detection is far away from the reed pipe, the circuit of the reed pipe is disconnected, and the working state that the main contact is in contact communication with the static contact is obtained.
The invention has the advantages of more accurate detection of the working state of the main contact and convenience for realizing miniaturization of the relay.
Claims (8)
1. The utility model provides a relay with main contact operating condition detects function, its characterized in that includes the casing, be equipped with main contact and main contact operating condition detection subassembly in the casing, the main contact sets up on the movable reed and is located between two main magnets of relative setting, main contact operating condition detection subassembly is located the movable reed downside, main contact operating condition detection subassembly is including detecting with magnet and tongue tube, the tongue tube is equipped with at a distance from magnetic structure with the main magnet, the movable reed links with the tongue tube or detects with the magnet, and when the movable reed goes up and down, the tongue tube switches on or breaks off under the effect of detecting with the magnet.
2. The relay with the main contact working state detecting function according to claim 1, wherein the magnetic isolating structure comprises a magnetic isolating block with a surrounding cross section, the magnetic isolating block is provided with a through groove which vertically penetrates through the magnetic isolating block, and the reed pipe is located in the through groove formed by the magnetic isolating block.
3. The relay according to claim 2, wherein a yoke plate is provided on a lower side of the movable spring, a positioning plate is provided on an upper side of the yoke plate, the positioning plate has an upwardly extending positioning block, the positioning block forms an upwardly open receiving groove, and the magnetic blocking block is disposed in the receiving groove.
4. The relay with the main contact operating condition detecting function according to claim 2 or 3, wherein a limiting hole for a lead to pass through is provided at a lower end of a side wall of the magnetic block, the limiting hole penetrates the magnetic block downward, and the lead is limited between a wall of the limiting hole and the yoke plate.
5. The relay with the main contact working state detection function according to claim 2 or 3, wherein the reed switch and the magnetic isolation block are fixed by dispensing.
6. The relay according to claim 1, wherein said detecting magnet is fixed to a lower side of said movable contact by a connecting member, one end of said connecting member is wrapped around said detecting magnet, and the other end of said connecting member is fixed to said movable contact.
7. The relay according to claim 1, wherein a main contact operating condition detecting member is provided below one of opposite sides of said movable spring, and a spring is connected between the yoke plate and a lower side of the other of the opposite sides of said movable spring.
8. The relay having the main contact operation state detecting function according to claim 3, wherein said positioning plate is provided with a guide groove opened upward to guide the wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210353346.4A CN114695021A (en) | 2022-04-06 | 2022-04-06 | Relay with main contact working state detection function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210353346.4A CN114695021A (en) | 2022-04-06 | 2022-04-06 | Relay with main contact working state detection function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114695021A true CN114695021A (en) | 2022-07-01 |
Family
ID=82143621
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210353346.4A Pending CN114695021A (en) | 2022-04-06 | 2022-04-06 | Relay with main contact working state detection function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114695021A (en) |
Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5483214A (en) * | 1994-04-26 | 1996-01-09 | Kilovac Corporation | Armature position sensor for a relay |
| CN2807215Y (en) * | 2005-04-25 | 2006-08-16 | 深圳汉光电子技术有限公司 | Magnetic reed switch type water meter sensor |
| JP2010140719A (en) * | 2008-12-10 | 2010-06-24 | Hitachi Industrial Equipment Systems Co Ltd | Circuit breaker |
| CN104091727A (en) * | 2014-07-17 | 2014-10-08 | 昆山国力真空电器有限公司 | Auxiliary contact for DC contactor |
| CN205335836U (en) * | 2016-01-13 | 2016-06-22 | 北京兴天通电讯科技有限公司 | A overvoltage protector for photovoltaic equipment |
| CN206650033U (en) * | 2017-03-15 | 2017-11-17 | 比亚迪股份有限公司 | Relay |
| CN206650031U (en) * | 2017-03-15 | 2017-11-17 | 比亚迪股份有限公司 | Relay |
| US20180166244A1 (en) * | 2015-07-01 | 2018-06-14 | Panasonic Intellectual Property Management Co., Ltd. | Electromagnetic relay |
| CN110033995A (en) * | 2019-03-19 | 2019-07-19 | 厦门宏发电力电器有限公司 | A kind of high voltage direct current relay being able to detect main contacts action state |
| CN110211845A (en) * | 2019-05-21 | 2019-09-06 | 厦门宏发电力电器有限公司 | A kind of high voltage direct current relay with monitoring main contacts working condition function |
| CN209388963U (en) * | 2018-10-30 | 2019-09-13 | 惠州比亚迪电子有限公司 | Relay |
| CN112289644A (en) * | 2020-11-03 | 2021-01-29 | 苏州芯脉智能电子科技有限公司 | High-capacity relay with reliable auxiliary contacts |
| CN112309776A (en) * | 2020-11-10 | 2021-02-02 | 东莞市中汇瑞德电子股份有限公司 | High-voltage direct-current relay with auxiliary contacts |
| CN112466716A (en) * | 2020-10-29 | 2021-03-09 | 厦门宏发电力电器有限公司 | High-voltage direct-current relay with auxiliary contacts |
| CN114284101A (en) * | 2022-01-12 | 2022-04-05 | 戴丁志 | Nonpolarity arc extinguishing high-voltage direct-current relay |
-
2022
- 2022-04-06 CN CN202210353346.4A patent/CN114695021A/en active Pending
Patent Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5483214A (en) * | 1994-04-26 | 1996-01-09 | Kilovac Corporation | Armature position sensor for a relay |
| CN2807215Y (en) * | 2005-04-25 | 2006-08-16 | 深圳汉光电子技术有限公司 | Magnetic reed switch type water meter sensor |
| JP2010140719A (en) * | 2008-12-10 | 2010-06-24 | Hitachi Industrial Equipment Systems Co Ltd | Circuit breaker |
| CN104091727A (en) * | 2014-07-17 | 2014-10-08 | 昆山国力真空电器有限公司 | Auxiliary contact for DC contactor |
| US20180166244A1 (en) * | 2015-07-01 | 2018-06-14 | Panasonic Intellectual Property Management Co., Ltd. | Electromagnetic relay |
| CN205335836U (en) * | 2016-01-13 | 2016-06-22 | 北京兴天通电讯科技有限公司 | A overvoltage protector for photovoltaic equipment |
| CN206650031U (en) * | 2017-03-15 | 2017-11-17 | 比亚迪股份有限公司 | Relay |
| CN206650033U (en) * | 2017-03-15 | 2017-11-17 | 比亚迪股份有限公司 | Relay |
| CN209388963U (en) * | 2018-10-30 | 2019-09-13 | 惠州比亚迪电子有限公司 | Relay |
| CN110033995A (en) * | 2019-03-19 | 2019-07-19 | 厦门宏发电力电器有限公司 | A kind of high voltage direct current relay being able to detect main contacts action state |
| CN110211845A (en) * | 2019-05-21 | 2019-09-06 | 厦门宏发电力电器有限公司 | A kind of high voltage direct current relay with monitoring main contacts working condition function |
| CN112466716A (en) * | 2020-10-29 | 2021-03-09 | 厦门宏发电力电器有限公司 | High-voltage direct-current relay with auxiliary contacts |
| CN112289644A (en) * | 2020-11-03 | 2021-01-29 | 苏州芯脉智能电子科技有限公司 | High-capacity relay with reliable auxiliary contacts |
| CN112309776A (en) * | 2020-11-10 | 2021-02-02 | 东莞市中汇瑞德电子股份有限公司 | High-voltage direct-current relay with auxiliary contacts |
| CN114284101A (en) * | 2022-01-12 | 2022-04-05 | 戴丁志 | Nonpolarity arc extinguishing high-voltage direct-current relay |
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