CN2789908Y - AC zero passage switching relay based on mechanical contact - Google Patents
AC zero passage switching relay based on mechanical contact Download PDFInfo
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- CN2789908Y CN2789908Y CN 200520070115 CN200520070115U CN2789908Y CN 2789908 Y CN2789908 Y CN 2789908Y CN 200520070115 CN200520070115 CN 200520070115 CN 200520070115 U CN200520070115 U CN 200520070115U CN 2789908 Y CN2789908 Y CN 2789908Y
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- contact
- electromagnetic type
- relay
- type relay
- mechanical contact
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Abstract
The utility model discloses an AC zero passage switching relay based on mechanical contact; the utility model is characterized in that: there is an electromagnetic relay which is connected with a mini-typed controller; the mini-typed controller is connected with a current sensor; the mini-typed controller is connected to the control contact of the electromagnetic relay; the control contact of the electromagnetic relay is connected with an AC load. Its beneficial effects are novel structure, high reliability, low power consumption, small volume and low price.
Description
Technical field:
The utility model relates to the interchange zero switching relay in the device for switching field, specifically, be a kind of zero switching relay that exchanges that disconnects when conducting is with current over-zero when adopting mechanical contact control ac circuit break-make and can realize voltage zero-cross based on mechanical contact.
Background technology:
The existing zero switching relay that exchanges divides two kinds substantially, and a kind of is that electronic type exchanges zero switching relay, is commonly referred to solid-state relay, and it exists, and power consumption is big, proof voltage and rush of current ability, volume (containing radiator) is big and the high shortcoming of price; Another kind is that combined type exchanges zero switching relay, be commonly referred to combined switch (relay), be that the electromagnetic type relay of routine and the contact of solid-state relay are together in parallel, moment in conducting and disconnection is used solid-state relay work, and when normal steady operation, using electromagnetic type relay work, it exists switching moment proof voltage and rush of current ability, volume is big and shortcoming such as price height.
Summary of the invention:
The purpose of this utility model provides a kind of novel structure, reliability height, low in energy consumption, volume is little the exchange zero switching relay based on mechanical contact low with price.
Technical solution of the present utility model is: an electromagnetic type relay is arranged, electromagnetic type relay is connected on the microcontroller, microcontroller connects current sensor, and microcontroller connects the control contact of electromagnetic type relay, and the control contact and the AC load of electromagnetic type relay are joined.
Current over-zero testing circuit in the microcontroller described in the utility model connects current sensor.Voltage zero-crossing detection circuit in the microcontroller connects the control contact of electromagnetic type relay.Electromagnetic type relay has pull-in winding and release coil, be support in the middle of two coils, and two coils from parallel connection of coils have suction iron on the support, on the suction iron reed is arranged, and reed one end has moving contact, and moving contact is corresponding with fixed contact on the fixed contact support.Electromagnetic type relay has two pairs of contacts that are in parallel, and a pair of in two pairs of contacts is the silver alloy contact, and another is to being tungsten point.The suction iron of electromagnetic type relay adopts permanent magnet.
Have the beneficial effect of utility model to be: novel structure, reliability height, low in energy consumption, volume is little and price is low.
The utility model is described in further detail below in conjunction with drawings and Examples:
Description of drawings:
Fig. 1 is the operation principle schematic diagram of a kind of zero switching relay of interchange based on mechanical contact of the present utility model;
Fig. 2 is the structural representation of the electromagnetic type relay in the utility model.
In the accompanying drawing 1, KA is an electromagnetic type relay, and TA is a current sensor, and A is a microcontroller, and A ' is a current over-zero testing circuit in the microcontroller, A " be voltage zero-crossing detector in the microcontroller, X is a terminal, L is an AC load.Relay adhesive (conducting) process: when ON/OFF was positioned at ON, A was according to A " adhesive intrinsic time of detected voltage zero-cross time and relay, control the KA coil electricity in good time, make the crimping that powers in the KA contact just of contact conducting moment of KA near zero the time.Relay discharges (disconnections) process: when ON/OFF was positioned at OFF, A controlled the KA coil blackout according to the release intrinsic time of the detected current over-zero of A ' time and relay in good time, make the contact of KA disconnect moment just on flowing through the KA contact electric current when zero.
In the accompanying drawing 2: 1 is that pull-in winding, 2 is that release coil, 3 is that iron-core coil (pure iron), 4 is that support, 5 is that suction iron (permanent magnet), 6 is that reed (phosphorus bronze sheet), 7 is that pair of contact (silver alloy), 9 is that another is to contact (tungsten) for fixed contact props up part (red copper), 8.Coil 1,2 parallel connections, the C face of permanent magnet 5 is that the N utmost point (or S utmost point), D face are the S utmost point (or N utmost point), when coil electricity, iron core A end is that the S utmost point (or N utmost point), iron core B end are the N utmost point (or S utmost points), iron core A end is inhaled with the suction iron phase as a result, iron core B holds with inhale iron phase scolds, and has improved the relay sucting speed, the contact conducting, after the outage, because the permanent magnet effect keeps attracting state.The contact is by being conducting to disconnection, on coil, add with adhesive in the other direction voltage get final product.The tungsten materials are adopted in contact 9, are not easy bonding, and are simultaneously thicker, and later release during than contact 8 Zao adhesive when the adhesive, in release has improved suction, released the anti-rush of current ability of moment; Silver alloy is adopted in contact 8, and contact resistance is less, can lead to big electric current, reliably working for a long time.
Claims (6)
1, a kind of interchange zero switching relay based on mechanical contact, it is characterized in that: an electromagnetic type relay is arranged, electromagnetic type relay is connected on the microcontroller, microcontroller connects current sensor, microcontroller connects the control contact of electromagnetic type relay, and the control contact and the AC load of electromagnetic type relay are joined.
2, the interchange zero switching relay based on mechanical contact according to claim 1, it is characterized in that: the current over-zero testing circuit in the microcontroller connects current sensor.
3, the interchange zero switching relay based on mechanical contact according to claim 1, it is characterized in that: the voltage zero-crossing detection circuit in the microcontroller connects the control contact of electromagnetic type relay.
4, according to claim 1,2 or 3 described interchange zero switching relays based on mechanical contact, it is characterized in that: electromagnetic type relay has pull-in winding and release coil, in the middle of two coils is support, two coils from parallel connection of coils, suction iron is arranged on the support, inhaling on the iron has reed, and reed one end has moving contact, and moving contact is corresponding with fixed contact on the fixed contact support.
5, the interchange zero switching relay based on mechanical contact according to claim 4, it is characterized in that: electromagnetic type relay has two pairs of contacts that are in parallel, and a pair of in two pairs of contacts is the silver alloy contact, and another is to being tungsten point.
6, according to claim 1,2 or 3 described interchange zero switching relays based on mechanical contact, it is characterized in that: the suction iron of electromagnetic type relay adopts permanent magnet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520070115 CN2789908Y (en) | 2005-03-22 | 2005-03-22 | AC zero passage switching relay based on mechanical contact |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520070115 CN2789908Y (en) | 2005-03-22 | 2005-03-22 | AC zero passage switching relay based on mechanical contact |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2789908Y true CN2789908Y (en) | 2006-06-21 |
Family
ID=36790243
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520070115 Expired - Lifetime CN2789908Y (en) | 2005-03-22 | 2005-03-22 | AC zero passage switching relay based on mechanical contact |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2789908Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101887822A (en) * | 2010-07-16 | 2010-11-17 | 韩燕� | Relay small-voltage control device and method |
| CN111415843A (en) * | 2020-04-28 | 2020-07-14 | 厦门奕力飒科技有限公司 | Relay contact combination suitable for inductive and capacitive load |
-
2005
- 2005-03-22 CN CN 200520070115 patent/CN2789908Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101887822A (en) * | 2010-07-16 | 2010-11-17 | 韩燕� | Relay small-voltage control device and method |
| CN111415843A (en) * | 2020-04-28 | 2020-07-14 | 厦门奕力飒科技有限公司 | Relay contact combination suitable for inductive and capacitive load |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: JIANGSU MODERN POWER CAPACITORS CO., LTD. Free format text: FORMER OWNER: NANTONG MODERN ELECTRIC POWER TECHNOLOGY CO., LTD. Effective date: 20100531 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 226005 NO.395, RENMIN WEST ROAD, NANTONG CITY, JIANGSU PROVINCE TO: 226000 NO.1, HYUNDAI DIANLI ROAD, NANTONG CITY, JIANGSU PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20100531 Address after: 226000 No. 1, modern power road, Jiangsu, Nantong Patentee after: Jiangsu TDS Capacitor Co., Ltd. Address before: 226005 No. 395 Renmin West Road, Jiangsu, Nantong Patentee before: Nantong Xiandai Electric Power Technology Co., Ltd. |
|
| C56 | Change in the name or address of the patentee |
Owner name: JIANGSU MODERN ELECTRIC TECHNOLOGY CO., LTD. Free format text: FORMER NAME: XIANDAI ELECTRIC POWER CAPACITORS CO., LTD., JIANGSU |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 226000 No. 1, modern power road, Jiangsu, Nantong Patentee after: JIANGSU MODERN POWER CAPACITOR CO., LTD. Address before: 226000 No. 1, modern power road, Jiangsu, Nantong Patentee before: Jiangsu TDS Capacitor Co., Ltd. |
|
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20150322 Granted publication date: 20060621 |