CN2276665Y - Electromagnetic latch-in relay - Google Patents
Electromagnetic latch-in relay Download PDFInfo
- Publication number
- CN2276665Y CN2276665Y CN 96236026 CN96236026U CN2276665Y CN 2276665 Y CN2276665 Y CN 2276665Y CN 96236026 CN96236026 CN 96236026 CN 96236026 U CN96236026 U CN 96236026U CN 2276665 Y CN2276665 Y CN 2276665Y
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- CN
- China
- Prior art keywords
- moving contact
- contact
- hook
- relay
- utility
- Prior art date
- 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.)
- Expired - Fee Related
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- Relay Circuits (AREA)
- Electromagnets (AREA)
Abstract
The utility model relates to an electromagnetic latching relay. The utility model is characterized in that a casing of the relay is provided with a manual reset press button, which drives a moving contact to downwards move; an energy storage spring is arranged between the end part of the moving contact and the casing; an armature iron which can rotate around a fixing support point is provided with a hook which can fasten the moving contact. When the armature iron attracts and drives the hook to disengage, the energy storage spring causes the moving contact and a static contact to be disengaged. When the reset press button is pressed, the moving contact and the static contact are in normally closed contact. The utility model can not start again without manual resetting, and has the memory function. In addition, the utility model also has the advantages of low power consumption, small volume, large switching on or off capacity, etc.
Description
The utility model relates to the electromagnetic type relay that low tension loop protection equipment is used, particularly a kind of latching relay.
The present control relay used of protection equipment when needing self-sustaining for memory function is arranged, generally is to adopt coil not cut off the power supply or method such as remanent magnetism maintenance, and the general power consumption of these methods is bigger.And the enough power that cut-offs will be arranged, and electromagnet, spring and contact etc. all select greatlyyer, and this just makes present latching relay volume bigger, and security reliability is poor, and inconvenience is used under many occasions.Owing to these shortcomings, limited the scope of application of present various latching relays.
The purpose of this utility model is the above-mentioned shortcoming that will overcome existing latching relay, and provide a kind of low in energy consumption, volume is little, contact open latching relay capacious, makes the application of this relay more extensive.
Solution of the present utility model comprises shell, iron core, armature, coil, back-moving spring, moving contact and fixed contact, it is characterized in that being equipped with on shell resetting to pacify turning round, and moves downward to drive moving contact; Can be provided with the hook that can fasten moving contact around the armature that the outer casing underpart fulcrum rotates, the hook top is an inclined plane shape; Moving contact is provided with opening, turns round when pressing in the peace that resets, and opening can slip in the hook along this inclined-plane, and moving contact is contacted with fixed contact; Between the end of moving contact and the shell energy-stored spring is housed, when the armature adhesive drives the hook disengagement, moving contact and fixed contact is thrown off.
Opposite side at above-mentioned moving contact can be arranged side by side a upper contact head again, when moving contact and fixed contact disengagement, can contact output alarm signal with upper contact head.
Describe embodiment of the present utility model in detail below in conjunction with accompanying drawing.
Fig. 1 is the structural representation of the utility model relay.
Referring to accompanying drawing, this relay has shell 1, iron core 2, armature 3, coil 4 and back-moving spring 5 etc.On shell 1, be embedded with moving contact 6 and fixed contact 7.Be fixed with hook 11 on the armature 3, this armature can rotate by the fulcrum A on shell.On the moving contact 6 of sheet opening 8 is arranged, the top of hook 11 is an inclined plane shape, is at ordinary times near the opening 8.Reset button 10 can freely be stretched in the enclosure, and when pressing reset button compressing moving contact 6, the left hand edge of opening 8 slides along the inclined-plane, is stuck in hook at last down, makes moving contact 6 keep normally closed the contact with fixed contact 7.Between the end of moving contact 6 and shell 1, energy-stored spring 12 is housed in addition, when the knob 10 that resets is pressed, makes energy-stored spring 12 elongations simultaneously.
Among the figure, be arranged side by side upper contact head 9 at moving contact 6 and fixed contact 7 relative opposite sides, when breaking down armature 3 adhesives, hook 11 discharges moving contacts 6, and moving contact 6 is contacted with upper contact head 9, and alarm signal is transferred to control desk.Moving contact and fixed contact 7 disconnect simultaneously, realize relaying protection.After fault actions, it can keep memory itself, can not restart without manual reset, has solved the difficulty that present various motor protector can't overcome.
The utility model compared with prior art has following advantage:
1. low in energy consumption. Very high because of its sensitivity, the electric current that passes through in the coil is minimum, the coil merit Consumption is not more than 1w, and contact is withstand voltage greater than 660v, allows to cut-off inductive load 10A, the agreement heating Electric current 6A.
2. volume is little. Because coil power dissipation is very little, so the components and parts such as electromagnet, spring are all optional Must be very little, make this relay become midget relay, have extensive use.
3. has memory function. Can not restart the memory operation reliability without manual reset Misoperation can not take place in height, and is safe and reliable,
4. repair easy to adjust.
5. simple in structure.
6. have the unbalance protection of motor overcurrent protection, overtemperature prote, no zero line system and the multiple functions such as open phase protection of zero line system are arranged.
Claims (2)
1, a kind of electromagnetic type latching relay, comprise shell (1), unshakable in one's determination (2), armature (3), coil (4), back-moving spring (5), moving contact (6) and fixed contact (7), it is characterized in that on shell (1), being equipped with and be used to drive the knob that resets (10) that moving contact (6) moves downward; Can be provided with the hook (11) that can fasten moving contact (6) around the armature (3) that shell (1) bottom fulcrum rotates, the hook top is an inclined plane shape; Moving contact (6) is provided with the opening (8) that can slip into along this inclined-plane in the hook (11), and moving contact (6) is contacted with fixed contact (7); The energy-stored spring (12) that moving contact (6) and fixed contact (7) are thrown off is housed between the end of moving contact (6) and the shell (1).
2, relay as claimed in claim 1 is characterized in that the opposite side of said moving contact (6) is provided with side by side and can contacts and the upper contact head (9) of output alarm signal with it.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96236026 CN2276665Y (en) | 1996-07-05 | 1996-07-05 | Electromagnetic latch-in relay |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96236026 CN2276665Y (en) | 1996-07-05 | 1996-07-05 | Electromagnetic latch-in relay |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2276665Y true CN2276665Y (en) | 1998-03-18 |
Family
ID=33911939
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96236026 Expired - Fee Related CN2276665Y (en) | 1996-07-05 | 1996-07-05 | Electromagnetic latch-in relay |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2276665Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105047479A (en) * | 2014-04-16 | 2015-11-11 | 三菱电机株式会社 | Electromagnetic contactor |
| CN108807083A (en) * | 2018-08-01 | 2018-11-13 | 华北理工大学 | A kind of relay-set |
| CN111986935A (en) * | 2020-08-21 | 2020-11-24 | 国网山东省电力公司昌邑市供电公司 | On-off device with self-locking function and on-off method |
-
1996
- 1996-07-05 CN CN 96236026 patent/CN2276665Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105047479A (en) * | 2014-04-16 | 2015-11-11 | 三菱电机株式会社 | Electromagnetic contactor |
| CN105047479B (en) * | 2014-04-16 | 2018-01-23 | 三菱电机株式会社 | Electromagnetic contactor |
| CN108807083A (en) * | 2018-08-01 | 2018-11-13 | 华北理工大学 | A kind of relay-set |
| CN108807083B (en) * | 2018-08-01 | 2024-03-01 | 国网冀北电力有限公司廊坊供电公司 | Relay device |
| CN111986935A (en) * | 2020-08-21 | 2020-11-24 | 国网山东省电力公司昌邑市供电公司 | On-off device with self-locking function and on-off method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |