CN203774109U - Electromagnetic operation mechanism for control and protection switch, and control and protection switch - Google Patents
Electromagnetic operation mechanism for control and protection switch, and control and protection switch Download PDFInfo
- Publication number
- CN203774109U CN203774109U CN201420153025.0U CN201420153025U CN203774109U CN 203774109 U CN203774109 U CN 203774109U CN 201420153025 U CN201420153025 U CN 201420153025U CN 203774109 U CN203774109 U CN 203774109U
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- control
- iron core
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- moving contact
- driving member
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Abstract
The utility model discloses an electromagnetic operation mechanism for a control and protection switch. The electromagnetic operation mechanism comprises the following components: an electromagnetic control device (1) which is provided with an iron core (4), a coil (5) arranged to wind the iron core, and a permanent magnet (6) capable of adhering to or separating from the iron core (4); a contact assembly (2) which comprises a static contact (9) and a moving contact (10) connected with a pressure spring (11); and a transmission member (3) which is provided with a return spring (12) and cooperates with the iron core (4) and the moving contact (10) so as to control the moving contact (10) to be connected with or disconnected from the static contact (9). Through arranging the pressure spring on the moving contact, rapid connection and disconnection of the moving contact and the static contact can be realized, at the same time, the force that the iron core applies to the moving contact is obviously reduced, the power consumption is decreased, at the same time, through the transmission member cooperating with the moving contact, the maintenance and the repair of parts are facilitated, and the maintenance cost is reduced.
Description
Technical field
The utility model relates to control and protective switch technical field, particularly, relates to a kind of electromagnetic operating mechanism of control and protective switch, and the control and protective switch that uses this electromagnetic operating mechanism.
Background technology
Control and protective switch is collection fuse, circuit breaker, contactor, starter, isolator, thermal relay, overload (or overcurrent, disconnected phase) protection relay, comprehensive protector of motor, the low-pressure electronic equipment product functions such as Intelligent electric leakage relay are in the circuit protection device of one, reasonable coordination each apportion appliance component retention performance, the work that control characteristic coordinates, can replace conventional motors and control application, also can be applicable to automatic centralized control system and Fieldbus Based dcs, no matter in family, warehouse, public place and enterprise etc. are all widely used.But this switch in the market uses (220V) alternating electromagnet for the critical piece of control switch disjunction, electromagnet energising, switch adhesive, major loop is connected, electromagnet power-off, major loop power-off; So want to make switch major loop protection on-state, that alternating electromagnet also must be switched in protection; Through measuring and calculating, the alternating electromagnet power consumption that on market, similar products are used is now on average in 20～30W left and right, and long-time energising can consume a large amount of electric energy.
For this problem, Chinese patent literature CN201725697U discloses a kind of control and protective switching device electromagnet control device, includes support, at support, is distributed with indication component outward, is provided with moving iron core in support, and indication component is connected with moving iron core.Meanwhile, on moving iron core, be provided with spring, the corresponding position of moving iron core is provided with static iron core, and the inner side of static iron core is provided with permanent magnet and adjusts magnetic sheet.
In the electromagnet control device of this patent documentation, when moving iron core need to be connected with static iron core, the suction that the magnetic field of control coil produces and the suction sum of permanent magnet will overcome the counter-force that spring puts on moving iron core, thereby the electric current that makes on the one hand control coil need increases, increase power consumption, by delaying the motion of moving iron core, sound iron core can not be connected in time, thereby affect its reliability on the other hand.In addition, because this moving iron core is the integral piece simultaneously contact with static iron core with permanent magnet, when the part contacting with static iron core or permanent magnet causes damaging because impulsive force is excessive, need integral replacing to move iron core, make to keep in repair, manufacturing cost is high.
Utility model content
To be solved in the utility model is that the electromagnet control device action of existing control and protective switching device is unreliable; power consumption is high; and the technical problem that maintenance cost is high; thereby provide a kind of good performance that has; and power consumption is low, the electromagnetic operating mechanism of the control and protective switch of convenient maintenance and replacement.
To achieve these goals, the utility model provides a kind of electromagnetic operating mechanism of control and protective switch, comprise electromagnetic control apparatus, there is iron core, be wound around coil that iron core arranges, can with iron core adhesive or separated permanent magnet, iron core is provided with locating part, to control the power switch to coil electricity; Contact assembly, comprises fixed contact and the moving contact that is connected with stage clip; Driving member, is provided with return spring, and coordinates with iron core and moving contact, to control moving contact and fixed contact, connects or disjunction.
Driving member rotates setting hinged with the external part of iron core, with when driving member contacts with moving contact, so that dynamic/static contact disjunction, or when driving member is separated with moving contact, so that dynamic/static contact is connected.
On driving member, be formed with the articulated jib hinged with iron core, for the connecting hole that is rotationally connected and can with moving contact contact or separated cantilever arm.
Contact assembly also comprises moving contact rack and push rod, and spring is connected to a side of moving contact rack, and push rod is connected to the opposite side of moving contact rack, with cantilever arm contact or separated.
The end that push rod coordinates with cantilever arm is provided with the extension protuberance increasing with cantilever arm contact area.
The end of cantilever arm is provided with the pressure head that can contact or depart from extension protuberance.
The electromagnetic operating mechanism of control and protective switch also comprises the support that can be fixedly connected with the base of control and protective switch, and electromagnetic control apparatus and driving member are arranged on support.
When the electromagnetic operating mechanism of control and protective switch is also included in coil electricity, carry out energy storage, and to coil, apply negative voltage after coil blackout, make the iron core energy storage device separated with permanent magnet.
Electromagnetic control apparatus also comprises locating part and power switch, and wherein, locating part is arranged on iron core, and controls the power switch to coil electricity under the drive of iron core.
In addition, the utility model also provides a kind of control and protective switch, wherein, is provided with above-mentioned electromagnetic operating mechanism on base.
Technique scheme of the present utility model has the following advantages compared to existing technology:
(1) electromagnetic operating mechanism of control and protective switch of the present utility model, its moving contact is connected with stage clip, therefore, when applying magnetic field to iron core, coil make iron core when permanent magnet moves, iron core by overcome driving member return spring active force and drive driving member action, moving contact under the return action power of driving member effect and stage clip will with fixed contact quick-make, permanent magnet and iron core are in attracting state, coil is stopped power supply, now, the suction-combining force of permanent magnet and iron core will be greater than the restoring force of return spring, return spring is in energy storage state, and stage clip is in releasing energy state, when coil obtains electricly when applying opposing magnetic field, will force iron core to move away from permanent magnet, simultaneously, driving member to apply active force to stage clip, disconnects return under the effect at iron core and return spring, now by dynamic/static contact, return spring will be in releasing energy state, and stage clip is in energy storage state.Like this, by stage clip is set on moving contact, can realize quick-make and the disconnection of dynamic/static contact, simultaneously, the power that makes iron core put on moving contact obviously reduces, and has reduced power consumption, simultaneously, by the driving member coordinating with moving contact, can change parts by convenient for maintaining, reduce maintenance cost.
(2) electromagnetic operating mechanism of control and protective switch of the present utility model; its driving member rotates setting hinged with iron core; and be set to can with moving contact contact or separated; like this, under the effect in the magnetic field that iron core applies at coil, when permanent magnet moves, will drive driving member to rotate; make driving member separated with moving contact; now, moving contact will be connected with fixed contact rapidly under the active force of its stage clip, realizes good action reliably.When dynamic/static contact needs disjunction, driving member makes moving contact overcome the active force of stage clip in moving contact snap action under the double action of the repulsion of the pulling force at return spring and permanent magnet, thereby makes the quick disjunction of dynamic/static contact, to have good breaking capacity.
(3) electromagnetic operating mechanism of control and protective switch of the present utility model; its iron core is provided with for controlling to the locating part of the power switch of coil electricity; by locating part, with the movement of iron core, control power switch; the structure of advantages of simple has guaranteed the stability of coil power on/off like this, and the mode than existing use control circuit has advantages of that cost is low, stable performance simultaneously.
(4) electromagnetic operating mechanism of the utility model control and protective switch; its iron core and moving contact carry out transferring power by driving member; make the power of electromagnetic control apparatus directly not put on moving contact; guaranteeing under the prerequisite of good connection and breaking capacity; can make the stability of each parts better, longer service life.
Accompanying drawing explanation
For content of the present utility model is more likely to be clearly understood, below in conjunction with accompanying drawing, the utility model is described in further detail, wherein,
Fig. 1 is the perspective view of control and protective switch of the present utility model;
Fig. 2 is the vertical view of the control and protective switch of Fig. 1;
Fig. 3 is the A-A cutaway view of Fig. 2, the structure graph of the electromagnetic operating mechanism that has shown control and protective switch when dynamic/static contact is connected;
Fig. 4 is the A-A cutaway view of Fig. 2, has shown electromagnetic operating mechanism structure graph when dynamic/static contact disjunction of control and protective switch.
Description of reference numerals: 1-electromagnetic control apparatus; 2-contact assembly; 3-driving member; 4-iron core; 5-coil; 6-permanent magnet; 7-locating part; 8-power switch; 9-fixed contact; 10-moving contact; 11-stage clip; 12-return spring; 13-articulated jib; 14-cantilever arm; 15-moving contact rack; 16-push rod; 17-extends protuberance; 18-pressure head; 19-base; 20-support.
Embodiment
Below with reference to accompanying drawing, the electromagnetic operating mechanism of control and protective switch of the present utility model is elaborated.
As Figure 1-4, the electromagnetic operating mechanism of described control and protective switch, comprises electromagnetic control apparatus 1, contact assembly 2 and driving member 3, wherein,
Electromagnetic control apparatus 1 has iron core 4, be wound around coil 5 that iron core arranges, can with iron core 4 adhesives or separated permanent magnet 6; Contact assembly 2 comprises fixed contact 9 and is connected with the moving contact 10 of stage clip 11; On driving member 3, be provided with return spring 12, and coordinate with iron core 4 and moving contact 10, to control moving contact 10 with the movement of iron core 4, connect or disjunction with fixed contact 9.
Like this, pass through said structure, when coil obtains electric and applies magnetic field to iron core and make iron core when permanent magnet moves, iron core drives driving member action by the active force that overcomes the return spring of driving member, moving contact under driving member effect and the return action power at its stage clip will with fixed contact quick-make, permanent magnet and iron core are in attracting state, coil is stopped power supply, now, return spring is in energy storage state, and stage clip is in releasing energy state; When coil again electric when applying opposing magnetic field, to force iron core to move away from permanent magnet, simultaneously, driving member by return under the effect at iron core and return spring to apply active force to stage clip, dynamic/static contact is disconnected, now, return spring will be in releasing energy state, and stage clip is in energy storage state.By stage clip is set on moving contact, can realize quick-make and the disconnection of dynamic/static contact, simultaneously, the power that makes iron core put on moving contact obviously reduces, and has reduced power consumption, simultaneously, by the driving member coordinating with moving contact, can change parts by convenient for maintaining, reduce maintenance cost.
It should be noted that, the set-up mode of driving member 3, with and with iron core 4, the fit system of moving contact 10 can have various structures form, for example, in a kind of version, although do not show in accompanying drawing of the present utility model, but those skilled in the art can understand by following description, particularly, driving member 3 slidably or rotate to arrange, moving contact 10 is directly connected with driving member 3, simultaneously, driving member 3 also can be connected with iron core 4, like this, when iron core 4 drives driving member 3 action, moving contact will be connected with fixed contact under the double action at its stage clip and driving member 3 rapidly.
Below in conjunction with Fig. 3-4, describe the set-up mode of driving member 3 in detail, with and with the another kind of version of the fit system of iron core 4, moving contact 10.Particularly; as shown in the figure; described moving contact 10 flexibly arranges by spring 11, and driving member 3 arranges rotationally, and for example driving member 3 is arranged on support hereinafter described rotationally; or be arranged on rotationally on the support of base of control and protective switch; driving member 3 is not directly connected with moving contact 10, and namely, both can contact or be separated; and driving member 3 is hinged with the external part of iron core 4, with under the drive at iron core 4 can with moving contact 10 contacts or separated.Like this, according to described above, under the effect in the magnetic field that iron core applies at coil when permanent magnet moves, to drive driving member to rotate, make driving member separated with moving contact, and make the return spring that stretches, now, moving contact will be connected and keep on-state under the effect of stage clip with fixed contact rapidly under the active force of its stage clip, realizes good action reliably.When dynamic/static contact needs disjunction, driving member makes moving contact overcome the active force of stage clip in moving contact snap action under the double action of the repulsion of the pulling force at return spring and permanent magnet, thereby makes the quick disjunction of dynamic/static contact, to have good breaking capacity.
Further, the return spring 12 of driving member 3 can be at iron core 4 when permanent magnet 6 moves, and tension driving member 3, makes driving member 3 have the trend towards contact assembly 2 direction deflections, limits the stroke section of driving member 3 simultaneously.
As shown in Figures 3 and 4, in a kind of concrete structure shape of driving member 3, on driving member 3, be formed with the articulated jib 13 hinged with iron core 4, for the connecting hole that is rotationally connected and can with moving contact 10 contacts or separated cantilever arm 14.Like this, under the effect of return spring 12, the cantilever arm 14 of driving member 3 can be towards making the moving contact 10 direction deflection separated with fixed contact 9, thereby under the active force of deflection, can apply and stablize good active force to moving contact, so that the quick disjunction of dynamic/static contact.
Further; as shown in Figures 3 and 4; contact assembly 2 also comprises moving contact rack 15 and push rod 16; one end of spring 11 is connected to a side of moving contact rack 15; and the other end of spring 11 can be resisted against on support 20 hereinafter described or be resisted against on the base 19 of control and protective switch; and push rod 16 is connected to the opposite side of moving contact rack 15, with cantilever arm 14 contact or separated.The setting of moving contact rack 15 is more convenient for coordinating of driving member 3 and moving contact.
Further, the end that push rod 16 coordinates with cantilever arm 14 is provided with the extension protuberance 17 increasing with cantilever arm contact area.
Further, the end of cantilever arm 14 is provided with the pressure head 18 that can contact or depart from extension protuberance 17.Driving member is when rotating, and pressure head 18 will remain and extend coordinating of protuberance 17, can easier compression push rod 16, and make moving contact 10 separated with fixed contact 9.
In a kind of structure that pressure head 18 arranges, pressure head 18 is provided with screw thread, and can screw in the screwed hole on cantilever arm 14, is convenient to regulate the overhang of pressure head 18.
Certainly, pressure head 18 also can be wholely set with cantilever arm 14.
In addition, described electromagnetic operating mechanism also comprises the support 20 that can be fixedly connected with the base 19 of control and protective switch, and electromagnetic control apparatus 1 and driving member 2 are correspondingly arranged on the corresponding position on support 20.
In addition, described electromagnetic operating mechanism carries out energy storage while being also included in coil 5 energising, and can apply negative voltage to coil after coil blackout, makes iron core 4 energy storage device separated with permanent magnet 6, for example capacitor.
In addition, electromagnetic control apparatus 1 also comprises locating part 7 and power switch 8, wherein, locating part 7 is arranged on iron core 4, and under the drive of iron core, control to the power switch 8 of coil 5 energisings, like this, under the magnetic fields of iron core at coil when permanent magnet moves, to drive locating part 7 actions, for example as shown in Figures 3 and 4, locating part 7 will force power switch 8 actions, namely disconnect power switch 8, make coil blackout, now, the suction-combining force of iron core and permanent magnet will be greater than the elastic force of the return spring of driving member, and dynamic/static contact will keep on-state under the effect of stage clip.
Finally, as shown in Figure 1, the utility model also provides a kind of corresponding control and protective switch, and this control and protective switch comprises base 19, is provided with above-mentioned electromagnetic operating mechanism on base 19, and namely, support 20 can be removably mounted on base 19.
The course of work below in conjunction with Fig. 3-4 explanation electromagnetic operating mechanism of the present utility model:
Dynamic/static contact is connected: coil 5 passes into positive electricity, iron core 4 moves towards permanent magnet under the effect of coil magnetic field, now, force iron core will to be greater than the spring of return spring towards the power of permanent magnet motion, and make iron core and permanent magnet 6 adhesives, locating part 7 is closed power switch 8 in its stroke, coil blackout now, meanwhile, driving member 3 is with separated with moving contact in the motion process of iron core 4, and moving contact 10 is connected with fixed contact under the effect of the restoring force of stage clip 11.
Dynamic/static contact disconnects: coil 5 passes into negative electricity by energy storage device, iron core 4 repels each other with permanent magnet 6 and drives driving member action, simultaneously, under the effect of return spring, driving member will apply active force to moving contact fast, so that dynamic/static contact disconnects, simultaneously, the active force of stage clip will be less than the active force of return spring, makes driving member keep the state contacting with moving contact, with the state that keeps dynamic/static contact to disconnect.
Obviously, above-described embodiment is only for example is clearly described, not the restriction to execution mode.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without also giving all execution modes.And among the protection range that the apparent variation of being extended out thus or change are still created in the utility model.
Claims (10)
1. an electromagnetic operating mechanism for control and protective switch, is characterized in that, comprises
Electromagnetic control apparatus (1), there is iron core (4), be wound around coil (5) that iron core arranges, can with iron core (4) adhesive or separated permanent magnet (6);
Contact assembly (2), comprises fixed contact (9) and is connected with the moving contact (10) of stage clip (11);
Driving member (3), is provided with return spring (12), and coordinates with iron core (4) and moving contact (10), to control moving contact (10), connects or disjunction with fixed contact (9).
2. the electromagnetic operating mechanism of control and protective switch according to claim 1; it is characterized in that; driving member (3) rotates setting hinged with the external part of iron core (4); with when driving member (3) contacts with moving contact (10); so that dynamic/static contact disjunction; or when driving member (3) is separated with moving contact (10), so that dynamic/static contact is connected.
3. the electromagnetic operating mechanism of control and protective switch according to claim 1 and 2; it is characterized in that, on driving member (3), be formed with the articulated jib (13) hinged with iron core (4), for the connecting hole that is rotationally connected and can with moving contact (10) contact or separated cantilever arm (14).
4. the electromagnetic operating mechanism of control and protective switch according to claim 3; it is characterized in that; contact assembly (2) also comprises moving contact rack (15) and push rod (16); spring (11) is connected to a side of moving contact rack (15); push rod (16) is connected to the opposite side of moving contact rack (15), with cantilever arm (14) contact or separated.
5. the electromagnetic operating mechanism of control and protective switch according to claim 4, is characterized in that, the end that push rod (16) coordinates with cantilever arm (14) is provided with the extension protuberance (17) increasing with cantilever arm contact area.
6. the electromagnetic operating mechanism of control and protective switch according to claim 5, is characterized in that, the end of cantilever arm (14) is provided with the pressure head (18) that can contact or depart from extension protuberance (17).
7. the electromagnetic operating mechanism of control and protective switch according to claim 1; it is characterized in that; also comprise the support (20) that can be fixedly connected with the base (19) of control and protective switch, electromagnetic control apparatus (1) and driving member (2) are arranged on support (20).
8. the electromagnetic operating mechanism of control and protective switch according to claim 1; it is characterized in that: while being also included in coil (5) energising, carry out energy storage; and can apply negative voltage to coil after coil blackout, make iron core (4) energy storage device separated with permanent magnet (6).
9. the electromagnetic operating mechanism of control and protective switch according to claim 1; it is characterized in that; electromagnetic control apparatus (1) also comprises locating part (7) and power switch (8); wherein; it is upper that locating part (7) is arranged on iron core (4), and control to the power switch (8) of coil (5) energising under the drive of iron core.
10. a control and protective switch, comprises base (19), it is characterized in that, is provided with the electromagnetic operating mechanism described in claim 1-9 any one on base (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420153025.0U CN203774109U (en) | 2014-03-31 | 2014-03-31 | Electromagnetic operation mechanism for control and protection switch, and control and protection switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420153025.0U CN203774109U (en) | 2014-03-31 | 2014-03-31 | Electromagnetic operation mechanism for control and protection switch, and control and protection switch |
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| Publication Number | Publication Date |
|---|---|
| CN203774109U true CN203774109U (en) | 2014-08-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420153025.0U Expired - Fee Related CN203774109U (en) | 2014-03-31 | 2014-03-31 | Electromagnetic operation mechanism for control and protection switch, and control and protection switch |
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| CN (1) | CN203774109U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104217903A (en) * | 2014-09-11 | 2014-12-17 | 海拉（厦门）汽车电子有限公司 | Push rod structure of high-current normally-closed type magnetic latching relay |
| CN108257830A (en) * | 2018-03-21 | 2018-07-06 | 浙江中讯电子有限公司 | A kind of earth leakage protective device |
| CN109192627A (en) * | 2018-10-24 | 2019-01-11 | 浙江恒力达科技股份有限公司 | A kind of control and protective switching device |
| CN115985728A (en) * | 2022-12-27 | 2023-04-18 | 重庆郭氏洪伸科技股份有限公司 | Power-off protection device and method for electric automobile |
-
2014
- 2014-03-31 CN CN201420153025.0U patent/CN203774109U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104217903A (en) * | 2014-09-11 | 2014-12-17 | 海拉（厦门）汽车电子有限公司 | Push rod structure of high-current normally-closed type magnetic latching relay |
| CN104217903B (en) * | 2014-09-11 | 2016-10-05 | 海拉（厦门）汽车电子有限公司 | A kind of big electric current closed type magnetic latching relay pusher structure |
| CN108257830A (en) * | 2018-03-21 | 2018-07-06 | 浙江中讯电子有限公司 | A kind of earth leakage protective device |
| CN108257830B (en) * | 2018-03-21 | 2024-03-01 | 浙江中讯电子有限公司 | Leakage protector |
| CN109192627A (en) * | 2018-10-24 | 2019-01-11 | 浙江恒力达科技股份有限公司 | A kind of control and protective switching device |
| CN109192627B (en) * | 2018-10-24 | 2024-02-02 | 浙江恒力达科技股份有限公司 | Control and protection switch electric appliance |
| CN115985728A (en) * | 2022-12-27 | 2023-04-18 | 重庆郭氏洪伸科技股份有限公司 | Power-off protection device and method for electric automobile |
| CN115985728B (en) * | 2022-12-27 | 2024-02-23 | 重庆郭氏洪伸科技股份有限公司 | Power-off protection device and method for electric automobile |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140813 Termination date: 20190331 |