CN202585232U - Permanent magnet alternating current vacuum contactor - Google Patents
Permanent magnet alternating current vacuum contactor Download PDFInfo
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- CN202585232U CN202585232U CN 201220149637 CN201220149637U CN202585232U CN 202585232 U CN202585232 U CN 202585232U CN 201220149637 CN201220149637 CN 201220149637 CN 201220149637 U CN201220149637 U CN 201220149637U CN 202585232 U CN202585232 U CN 202585232U
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- pedestal
- spring
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Abstract
The utility model discloses a permanent magnet alternating current vacuum contactor, belonging to the technical field of a vacuum switch. A base and a basic frame are fixedly connected to be a whole body. A vacuum arc extinguish chamber is fixed on the base through a bolt and a gasket. A wiring board is connected to a static contact of the vacuum arc extinguish chamber. The wiring board and the vacuum arc extinguish chamber are fixed on the base through a connecting plate. Another wiring board passes through a screw, a cushion, a spring bowl, a nut and a conductive clamp orderly to connect a moving contact of the vacuum arc extinguish chamber. A bottom plate is fixed on the base. A power supply module is fixed on the bottom plate. A permanent magnet mechanism is in the base and is connected with the bottom plate. A travel switch is fixed at one side of the base. A fixed screw is fixed on the base. A breaking spring is sleeved on a screw cap for fixing the screw. Another end of the breaking spring is fixed on an armature iron. Two ends of the breaking spring are provided with baffle plates. The permanent magnet alternating current vacuum contactor has the advantages of high power saving, a long life, no vibration, no adhesion, high breaking speed, no noise and the like, and an energy saving effect reaches more than 99%.
Description
Technical field
The utility model relates to a kind of vacuum switch, is specially the permanent magnet AC vacuum contactor that is used for the control circuit switch.
Background technology
Contactor is a kind of control apparatus of automation, and contactor is mainly used in frequent connection or disjunction AC and DC circuit, and it is big to have a control capacity; But remote operation cooperates relay can realize fixed cycle operator, interlocked control; Various quantitative controls and decompression and under-voltage protection; Be widely used in automatic control circuit, its major control also can be used for controlling other electrical load to liking motor.
Usually vacuum contactor adopts spring operating mechanism or electromagnetic operating mechanism, and the advantage of spring operating mechanism is not need powerful DC power supply, and motor power (output) is little; AC/DC, suitable alternating current operation, its shortcoming is the structure more complicated; Number of parts many (being about 200), and require machining accuracy high, manufacturing process is complicated; Cost is high, and reliability of products is difficult for guaranteeing; The operating mechanism that leans on electromagnetic force to close a floodgate is called electromagnetic operating mechanism, and the advantage of electromagnetic operating mechanism is simple in structure, number of parts few (being about 120); Reliable operation, low cost of manufacture, but the power that its shortcoming is a closing coil to consume is too big; Require the user to be equipped with expensive batteries; The electromagnetic mechanism structure is heavy, and operate time is longer, also can produce problems such as the electric breaking of rolling, noise pollution, opening velocity are slow, contact is prone to adhesion, iron core is perishable.
Existing permanent magnet AC vacuum contactor volume is big, and useful life is short, particularly in operation frequently, under the situation of running, needs during replacing to stop production continuously, uses inconvenience, is not suitable for the needs in market.
Summary of the invention
In order to solve problem and the deficiency that exists in the prior art; The utility model provides a kind of permanent magnet AC vacuum contactor; Have plurality of advantages such as high economize on electricity, long-life, no chatter, no adhesion, breaking speed are fast, noiseless, energy-saving effect reaches more than 99%.
The purpose of the utility model is to realize through following technical scheme
The permanent magnet AC vacuum contactor, primary structure comprises: pedestal, pedestal, vacuum interrupter, travel switch, operating mechanism, permanent magnet mechanism, power module, base plate and terminal block, screw, coil, iron core, armature and tripping spring, pedestal and pedestal fixedly are connected as a single entity; Through bolt and spacers vacuum interrupter, terminal block is connected on the fixed contact of vacuum interrupter on the pedestal, and terminal block and vacuum interrupter are fixed on the pedestal by connecting plate; Another terminal block is connected on the moving contact of vacuum interrupter through screw, liner, spring bowl, nut, conductive clip successively, is connected with flexible connection on the moving contact of vacuum interrupter, is fixed with base plate on the pedestal; Power module is fixed on the base plate; Permanent magnet mechanism is connected in pedestal and with base plate, and travel switch is fixed in pedestal one side, and hold-down screw is fixed on the pedestal; Tripping spring is placed on the nut of hold-down screw; The tripping spring other end is fixed on the armature, and the tripping spring two ends are provided with plate washer, and coil is around on the iron core.
Described travel switch is at least one, is auxiliary switch, and another utility model patent that adopts the inventor to apply for is organized travel switch more, and (patent No. is: ZL200820154130.0).
Described operating mechanism comprises connecting lever, axle, lever, connecting rod, and lever links to each other with connecting lever; Lever is connected through axle with connecting rod; Through screw armature, be fixed with screw on the connecting rod on the lever, screw is connected on the moving contact of vacuum interrupter through liner, spring bowl, nut, conductive clip successively; The spring bowl has two, is provided with spring between two spring bowls.
Described permanent magnet mechanism is made up of base plate, permanent magnet, yoke plate, magnetic conductive board, and iron core, magnetic conductive board, permanent magnet, yoke plate order are installed on the base plate through screw.
Described power module, it is connected with binding post, is provided with insulation board between power module and base plate.
When coil applies voltage, the moving armature of inhaling unshakable in one's determination, armature drives lever and sways, and an end of connecting rod promotes the spring bowl; The compression spring discharges the moving contact of vacuum interrupter, makes fixed contact and moving contact closure by the self-closing power of vacuum interrupter; Connect main circuit, electric current is through terminal block, fixed contact, moving contact, another terminal block, when loss of voltage that applies when coil or the magnetic force that is produced are not enough; The armature that discharges unshakable in one's determination, spring promotes the spring bowl, and the end that the spring bowl promotes connecting rod sways; The fixed contact of vacuum interrupter and moving contact disjunction, the electric arc that in connection and disjunction circuitry processes, produces is in vacuum interrupter, because the characteristic that vacuum has; Electric arc moment extinguishes, and can not leak, and is safe and reliable.
The utility model is not when working, and dynamic and static contact is in release condition, and as giving coil electricity, iron core will produce magnetic field; Make probe of contactor from the off-position to the attracted position fast moving, simultaneously also be moving contact release stored energy, in a single day produce electric arc, electromagnetism gap smaller between the contact; At this moment permanent magnetism power will increase severely, and sucting speed is accelerated (pickup time is less than 20ms), thus the ablation when having significantly reduced the contact adhesive, and permanent magnetism power keeps contact pressure moment constant after making the contact adhesive; Do not receive the influence of voltage fluctuation, even if the adhesive contact also is an one-time action under critical voltage, contact is chatter not; After the probe of contactor adhesive, power module is the current cut-off of coil, this moment coil do not work, not power consumption; The electric current of coil is zero, no energy consumption, and coil can not generate heat; Can not burn, rely on permanent magnetism power that contact is remained on attracting state this moment fully, and the electric energy that stores during adhesive just can pass to reverse current to coil; Make the mutual expelling force that produces same polarity magnetic field between iron core and the static iron core, and with the retracting spring acting in conjunction permanent-magnetic AC contact contact is discharged, release energy this moment is the several times of traditional electromagnetic AC contactor; Rate of release is electromagnetic AC contactor 3-5 doubly (less than 18ms), and the burning time of electric arc between contact when having reduced release effectively is when control voltage is higher than the assigned voltage value; Both made voltage fluctuation can not have influence on the confining force between dynamic and static contact, contact equally can chatter, the phenomenon of having avoided contact to be burnt fully yet.
Owing to adopted structure such as permanent magnet mechanism, the utlity model has following beneficial effect: high economize on electricity, long-life, no chatter, no adhesion, breaking speed soon, plurality of advantages such as noiseless, iron core is not perishable, energy-saving effect reaches more than 99%.
Description of drawings
Fig. 1 is the utility model one embodiment front view
Fig. 2 is the end view of Fig. 1
Fig. 3 is the rearview of Fig. 1
Among the figure: 1-pedestal, 2-travel switch, 3-tripping spring, 4-connecting lever, 5-pedestal, 6-iron core; 7,16,70,92,123,170, the 180-screw, 8, the 80-terminal block, 9, vacuum interrupter, 10, flexible connection, 11, the 35-conductive clip, the 12-power module; The 13-lever, 14-connecting rod, 15-hold-down screw, 17-base plate, 18-armature, 31, the 32-plate washer; The 91-liner, 93-spring, 94,95-spring bowl, 96-nut, 60-coil, 121-binding post; The 122-insulation board, 130-axle, 160, the 201-pad, 161-yoke plate, 162-permanent magnet, 163-magnetic conductive board.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is further described
Like Fig. 1, Fig. 2, embodiment illustrated in fig. 3, the permanent magnet AC vacuum contactor, primary structure comprises: pedestal, pedestal, vacuum interrupter, travel switch, operating mechanism, permanent magnet mechanism, power module, base plate and terminal block, screw, coil, iron core, armature and tripping spring; Pedestal and pedestal fixedly are connected as a single entity, and through bolt and spacers vacuum interrupter, terminal block is connected on the fixed contact of vacuum interrupter on the pedestal; Terminal block and vacuum interrupter are fixed on the pedestal by connecting plate (not indicating among the figure); Another terminal block is connected on the moving contact of vacuum interrupter through screw, liner, spring bowl, nut, conductive clip successively, is connected with flexible connection on the moving contact of vacuum interrupter, is fixed with base plate on the pedestal; Power module is fixed on the base plate; Permanent magnet mechanism is connected in pedestal and with base plate, and in pedestal one side, hold-down screw is fixed on the pedestal travel switch through screw and spacers; Tripping spring is placed on the nut of hold-down screw; The tripping spring other end is fixed on the armature, and the tripping spring two ends are provided with plate washer, and coil is around on the iron core.
Further, described travel switch is at least one, is auxiliary switch, and another utility model patent that adopts the inventor to apply for is organized travel switch more, and (patent No. is: ZL200820154130.0).
Further, described operating mechanism comprises connecting lever, axle, lever, connecting rod; Lever links to each other with connecting lever, and lever is connected through axle with connecting rod, passes through screw armature on the lever; Be fixed with screw on the connecting rod; Screw is connected on the moving contact of vacuum interrupter through liner, spring bowl, nut, conductive clip successively, and the spring bowl has two, is provided with spring between two spring bowls.
Further, described permanent magnet mechanism is made up of base plate, permanent magnet, yoke plate, magnetic conductive board, and iron core, magnetic conductive board, permanent magnet, yoke plate order are installed on the base plate through screw.
Further, described power module, it is connected with binding post, is provided with insulation board between power module and base plate.
When coil applies voltage, the moving armature of inhaling unshakable in one's determination, armature drives lever and sways, and an end of connecting rod promotes the spring bowl; The compression spring discharges the moving contact of vacuum interrupter, makes fixed contact and moving contact closure by the self-closing power of vacuum interrupter; Connect main circuit, electric current is through terminal block, fixed contact, moving contact, another terminal block, when loss of voltage that applies when coil or the magnetic force that is produced are not enough; The armature that discharges unshakable in one's determination, spring promotes the spring bowl, and the end that the spring bowl promotes connecting rod sways; The fixed contact of vacuum interrupter and moving contact disjunction, the electric arc that in connection and disjunction circuitry processes, produces is in vacuum interrupter, because the characteristic that vacuum has; Electric arc moment extinguishes, and can not leak, and is safe and reliable.
The utility model is not when working, and dynamic and static contact is in release condition, and as giving coil electricity, iron core will produce magnetic field; Make probe of contactor from the off-position to the attracted position fast moving, simultaneously also be moving contact release stored energy, in a single day produce electric arc, electromagnetism gap smaller between the contact; At this moment permanent magnetism power will increase severely, and sucting speed is accelerated (pickup time is less than 20ms), thus the ablation when having significantly reduced the contact adhesive, and permanent magnetism power keeps contact pressure moment constant after making the contact adhesive; Do not receive the influence of voltage fluctuation, even if the adhesive contact also is an one-time action under critical voltage, contact is chatter not; After the probe of contactor adhesive, power module is the current cut-off of coil, this moment coil do not work, not power consumption; The electric current of coil is zero, no energy consumption, and coil can not generate heat; Can not burn, rely on permanent magnetism power that contact is remained on attracting state this moment fully, and the electric energy that stores during adhesive just can pass to reverse current to coil; Make the mutual expelling force that produces same polarity magnetic field between iron core and the static iron core, and with the retracting spring acting in conjunction permanent-magnetic AC contact contact is discharged, release energy this moment is the several times of traditional electromagnetic AC contactor; Rate of release is electromagnetic AC contactor 3-5 doubly (less than 18ms), and the burning time of electric arc between contact when having reduced release effectively is when control voltage is higher than the assigned voltage value; Both made voltage fluctuation can not have influence on the confining force between dynamic and static contact, contact equally can chatter, the phenomenon of having avoided contact to be burnt fully yet.
Above embodiment only in order to the explanation the utility model and and the described technical scheme of unrestricted the utility model; Therefore, although this specification has carried out detailed explanation to the utility model with reference to each above-mentioned embodiment,, those of ordinary skill in the art should be appreciated that still and can make amendment or be equal to replacement the utility model; And all do not break away from the technical scheme and the improvement thereof of the spirit and the scope of the utility model, and it all should be encompassed in the claim scope of the utility model.
Claims (5)
1. permanent magnet AC vacuum contactor, primary structure comprises: pedestal, pedestal, vacuum interrupter, travel switch, operating mechanism, permanent magnet mechanism, power module, base plate and terminal block, screw, coil, iron core, armature and tripping spring, pedestal and pedestal fixedly are connected as a single entity; Through bolt and spacers vacuum interrupter, coil is around on the iron core, is connected with flexible connection on the moving contact of vacuum interrupter on the pedestal; It is characterized in that; Terminal block is connected on the fixed contact of vacuum interrupter, and terminal block and vacuum interrupter are fixed on the pedestal by connecting plate, and another terminal block is connected on the moving contact of vacuum interrupter through screw, liner, spring bowl, nut, conductive clip successively; Be fixed with base plate on the pedestal; Power module is fixed on the base plate, and permanent magnet mechanism is connected in pedestal and with base plate, and travel switch is fixed in pedestal one side; Hold-down screw is fixed on the pedestal; Tripping spring is placed on the nut of hold-down screw, and the tripping spring other end is fixed on the armature, and the tripping spring two ends are provided with plate washer.
2. permanent magnet AC vacuum contactor according to claim 1 is characterized in that, described travel switch is at least one.
3. permanent magnet AC vacuum contactor according to claim 1 is characterized in that, described operating mechanism; Comprise connecting lever, axle, lever, connecting rod, lever links to each other with connecting lever, and lever is connected through axle with connecting rod; Through screw armature, be fixed with screw on the connecting rod on the lever, screw is connected on the moving contact of vacuum interrupter through liner, spring bowl, nut, conductive clip successively; The spring bowl has two, is provided with spring between two spring bowls.
4. permanent magnet AC vacuum contactor according to claim 1 is characterized in that, described permanent magnet mechanism is made up of base plate, permanent magnet, yoke plate, magnetic conductive board, and iron core, magnetic conductive board, permanent magnet, yoke plate order are installed on the base plate through screw.
5. permanent magnet AC vacuum contactor according to claim 1 is characterized in that, is provided with insulation board between described power module and base plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220149637 CN202585232U (en) | 2012-04-11 | 2012-04-11 | Permanent magnet alternating current vacuum contactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220149637 CN202585232U (en) | 2012-04-11 | 2012-04-11 | Permanent magnet alternating current vacuum contactor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202585232U true CN202585232U (en) | 2012-12-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220149637 Expired - Fee Related CN202585232U (en) | 2012-04-11 | 2012-04-11 | Permanent magnet alternating current vacuum contactor |
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| Country | Link |
|---|---|
| CN (1) | CN202585232U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110047693A (en) * | 2019-05-21 | 2019-07-23 | 上海容之自动化系统有限公司 | A kind of vacuum circuit breaker MEMS acceleration transducer |
| CN111370265A (en) * | 2020-04-10 | 2020-07-03 | 未彬 | Contactor structure |
| CN115295355A (en) * | 2022-10-08 | 2022-11-04 | 宁波耐森电气科技有限公司 | Vacuum contactor for inflating cabinet |
-
2012
- 2012-04-11 CN CN 201220149637 patent/CN202585232U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110047693A (en) * | 2019-05-21 | 2019-07-23 | 上海容之自动化系统有限公司 | A kind of vacuum circuit breaker MEMS acceleration transducer |
| CN111370265A (en) * | 2020-04-10 | 2020-07-03 | 未彬 | Contactor structure |
| CN111370265B (en) * | 2020-04-10 | 2022-02-01 | 常州天利智能控制股份有限公司 | Contactor structure |
| CN115295355A (en) * | 2022-10-08 | 2022-11-04 | 宁波耐森电气科技有限公司 | Vacuum contactor for inflating cabinet |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121205 Termination date: 20150411 |
|
| EXPY | Termination of patent right or utility model |