CN103065878A - Permanent magnet solenoid type contactor - Google Patents
Permanent magnet solenoid type contactor Download PDFInfo
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- CN103065878A CN103065878A CN2012105702660A CN201210570266A CN103065878A CN 103065878 A CN103065878 A CN 103065878A CN 2012105702660 A CN2012105702660 A CN 2012105702660A CN 201210570266 A CN201210570266 A CN 201210570266A CN 103065878 A CN103065878 A CN 103065878A
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- iron core
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- connecting rod
- armature
- cylinder iron
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Abstract
The invention discloses a permanent magnet solenoid type contactor, and belongs to the field of high-power electrical appliances of power transmission and distribution devices. The permanent magnet solenoid type contactor solves the problems that an existing direct current solenoid type contactor rebounds after the direct current solenoid type contactor is closed and coils are large in energy consumption. A cylindrical iron core is arranged inside a shell and is coaxial with the shell, a round-ring-shaped permanent magnet is arranged between the bottom of the shell and the upper end face of the cylindrical iron core, the round-ring-shaped permanent magnet contacts the bottom of the shell and the upper end face of the cylindrical iron core closely, and the round-ring-shaped permanent magnet is magnetized along the axial direction of the cylindrical iron core. Magnet exciting coils are arranged in the radial gaps of the shell and the cylindrical iron core, an armature is embedded in a cavity of the cylindrical iron core, one end of a connecting rod is fixedly connected with the armature, the connecting rod and the shell are coaxial, a counter-force spring is sleeved on the connecting rod and arranged between the armature and a yoke, and a rebounding spring is sleeved outside the connecting rod and arranged between a bridge type contact and the connecting rod. The permanent magnet solenoid type contactor is applicable to the direct current solenoid type contactor.
Description
Technical field
The invention belongs to the high-power electric appliance field of equipment for power transmission and distribution, is exactly a kind of DC permanent magnet helix tube type contactor specifically.
Background technology
The problem that aspect dc solenidal formula contactor dynamic characteristic, has at present the restriction properties of product, such as closure rebound and disjunction arcing phenomenon, need to produce electromagnetic attraction to coil electricity when contactor is worked in addition and keep attracting state, yet for a long time energising, the too high coil burnout that easily causes of the temperature rise that causes has increased the power consumption of coil simultaneously.
Summary of the invention
The present invention has proposed permanent magnetism helix tube type contactor in order to solve the large problem of power consumption of the closed rebound of existing dc solenidal formula contactor and coil.
Permanent magnetism helix tube type contactor, it comprises shell, cylinder iron core, connecting rod, magnet exciting coil, armature, yoke, reaction spring, rebound spring and bridge contact, shell is drum-shaped, it is characterized in that: it also comprises round ring magnet, described cylinder iron core is positioned at enclosure, and described cylinder iron core is coaxial with shell, round ring magnet is arranged between the upper surface of the bottom of shell and cylinder iron core, and the equal close contact in the bottom of described round ring magnet and shell and the upper surface of cylinder iron core, described round ring magnet is along the axial charging of cylinder iron core, magnet exciting coil is positioned at the radial clearance of shell and cylinder iron core, armature is embedded in the cavity of cylinder iron core, one end of connecting rod is fixedly connected with armature, and connecting rod is coaxial with housing, yoke covers and is fixed on the open side of shell, the other end of connecting rod is fixedly connected with bridge contact after passing this yoke, leave the gap between the lateral wall of connecting rod and the yoke, reaction spring is enclosed within on the connecting rod, and between armature and yoke, the outside of connecting rod is also overlapped rebound spring, and described rebound spring is between bridge contact and connecting rod.
For addressing the above problem; creatively permanent magnet is added in the helix tube type electromagnetic mechanism in the technical scheme of the present invention; the dynamic characteristic of the electromagnetic mechanism by regulation and control permanent magnetism helix tube type contactor has realized the reduction closing speed, has increased breaking speed, and realizes o-volt protection and the low purpose that keeps power consumption of contactor.
The present invention adds annular permanent magnet and increases the excess of stroke in D.C. contactor helix tube type electromagnetic mechanism, so that armature just has been subject to suction when not switching on, in the situation that remaining unchanged, initial counter-force reduced minimum operate voltage like this, thereby reduced the closing speed of contact, be conducive to suppress the generation of closed rebound; Because the effect of permanent magnetism, when armature was in the attracted position, coil only need pass to less electric current just can keep adhesive, thereby has reduced the maintenance power consumption; When voltage was 0, dynamic/static contact disconnected under the counter-force effect, and contactor has the o-volt protection function; Because the excess of stroke increases, maximum counter-force increases, and is used for offsetting the effect of permanent magnet during disjunction to the logical reverse current of coil, so the breaking speed of contact increases, when realizing above improved properties, do not increase the volume or weight of contactor, help miniaturization and the lightweight of contactor.
Because coil need not to switch on or lower electric current can realize the maintenance function of closing position having extreme high reliability after permanent magnet mechanism closed a floodgate, simultaneously required operational power is very little, is subjected to voltage ripple of power network to affect little and can realizes non-maintaining operation.
Description of drawings
Fig. 1 is the structural representation of permanent magnetism helix tube type contactor,
Fig. 2 is the course of work flow chart of permanent magnetism helix tube type contactor.
Embodiment
Embodiment one: present embodiment is described referring to Fig. 1, the described permanent magnetism helix tube type of present embodiment contactor, it comprises shell 1, cylinder iron core 3, connecting rod 4, magnet exciting coil 5, armature 6, yoke 7, reaction spring 8, rebound spring 9 and bridge contact 10, shell 1 is drum-shaped, it is characterized in that: it also comprises round ring magnet 2, described cylinder iron core 3 is positioned at shell 1 inside, and described cylinder iron core 3 is coaxial with shell 1, round ring magnet 2 is arranged between the upper surface of the bottom of shell 1 and cylinder iron core 3, and described round ring magnet 2 and the bottom of shell 1 and the equal close contact in upper surface of cylinder iron core 3, described round ring magnet 2 is along the axial charging of cylinder iron core 3, magnet exciting coil 5 is positioned at the radial clearance of shell 1 and cylinder iron core 3, armature 6 is embedded in the cavity of cylinder iron core 3, one end of connecting rod 4 is fixedly connected with armature 6, and connecting rod 4 is coaxial with housing 1, yoke 7 covers and is fixed on the open side of shell 1, the other end of connecting rod 4 is fixedly connected with bridge contact 10 after passing this yoke 7, leave the gap between the lateral wall of connecting rod 4 and the yoke 7, reaction spring 8 is enclosed within on the connecting rod 4, and between armature 6 and yoke 7, the outside of connecting rod 4 is also overlapped rebound spring 9, and described rebound spring 9 is between bridge contact 10 and connecting rod 4.
Embodiment two: the difference of present embodiment and embodiment one described permanent magnetism helix tube type contactor is: described shell 1, cylinder iron core 3, armature 6, yoke 7 all adopt the material of high magnetic permeability to make.
Embodiment three: the difference of present embodiment and embodiment one described permanent magnetism helix tube type contactor is: described bridge contact 10 is comprised of moving contact and fixed contact.
Embodiment four: present embodiment is with the difference of embodiment one described permanent magnetism helix tube type contactor: the internal diameter of the internal diameter of described round ring magnet 2 and cylinder iron core 3 is identical.
The course of work of permanent magnetism helix tube type contactor is: as shown in Figure 2, give magnet exciting coil 5 energisings, so that this magnet exciting coil 5 produces magnetic field, the magnetic field acting in conjunction that this magnetic field and round ring magnet 2 produce is moved armature 6 under less coil current, make the moving contact of bridge contact 10 and fixed contact reach attracting state;
When armature 6 closures, apply the less voltage of keeping for magnet exciting coil 5, make the common suction that produces in magnetic field of round ring magnet 2 and magnet exciting coil 5 greater than the spring counter-force, make the moving contact of bridge contact 10 and fixed contact keep adhesive;
Lead to reverse currents to magnet exciting coil 5 during release, and then so that the magnetic direction change that magnet exciting coil 5 produces, this magnetic field cancellation the magnetic field that produces of round ring magnet 2, armature 6 counter motion under the effect of counter-force, the moving contact and the fixed contact that drive bridge contact 10 disconnect.
Magnet exciting coil 5 of the present invention moves armature 6 with round ring magnet 2 actings in conjunction under less coil current, reduced pick-up current and pick-up voltage, has limited the increase of closing speed, has suppressed closed rebound phenomenon;
When coil voltage was 0, contactor can not be kept attracting state and the o-volt protection effect has been played in automatic disconnection;
After the armature closure, apply the less voltage of keeping to magnet exciting coil, make the common suction that produces in round ring magnet and magnet exciting coil magnetic field greater than the spring counter-force, contactor just can keep adhesive, has reduced like this maintenance power consumption of coil;
The excess of stroke increases, and maximum counter-force increases makes the breaking speed of armature 6 larger, has increased the moving contact of bridge contact 10 and the breaking speed of fixed contact.
Claims (4)
1. permanent magnetism helix tube type contactor, it comprises shell (1), cylinder iron core (3), connecting rod (4), magnet exciting coil (5), armature (6), yoke (7), reaction spring (8), rebound spring (9) and bridge contact (10), shell (1) is drum-shaped, it is characterized in that: it also comprises round ring magnet (2), described cylinder iron core (3) is positioned at shell (1) inside, and described cylinder iron core (3) is coaxial with shell (1), round ring magnet (2) is arranged between the upper surface of the bottom of shell (1) and cylinder iron core (3), and described round ring magnet (2) and the bottom of shell (1) and the equal close contact in upper surface of cylinder iron core (3), described round ring magnet (2) is along the axial charging of cylinder iron core (3), magnet exciting coil (5) is positioned at the radial clearance of shell (1) and cylinder iron core (3), armature (6) is embedded in the cavity of cylinder iron core (3), one end of connecting rod (4) is fixedly connected with armature (6), and connecting rod (4) is coaxial with housing (1), yoke (7) covers and is fixed on the open side of shell (1), the other end of connecting rod (4) is fixedly connected with bridge contact (10) after passing this yoke (7), leave the gap between the lateral wall of connecting rod (4) and the yoke (7), reaction spring (8) is enclosed within on the connecting rod (4), and be positioned between armature (6) and the yoke (7), the outside of connecting rod (4) is also overlapped rebound spring (9), and described rebound spring (9) is positioned between bridge contact (10) and the connecting rod 4.
2. permanent magnetism helix tube type contactor according to claim 1, it is characterized in that: described shell (1), cylinder iron core (3), armature (6) and yoke (7) all adopt the material of high magnetic permeability to make.
3. permanent magnetism helix tube type contactor according to claim 1, it is characterized in that: described bridge contact (10) is comprised of moving contact and fixed contact.
4. permanent magnetism helix tube type contactor according to claim 1, it is characterized in that: the internal diameter of described round ring magnet (2) is identical with the internal diameter of cylinder iron core (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105702660A CN103065878A (en) | 2012-12-25 | 2012-12-25 | Permanent magnet solenoid type contactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105702660A CN103065878A (en) | 2012-12-25 | 2012-12-25 | Permanent magnet solenoid type contactor |
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| Publication Number | Publication Date |
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| CN103065878A true CN103065878A (en) | 2013-04-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012105702660A Pending CN103065878A (en) | 2012-12-25 | 2012-12-25 | Permanent magnet solenoid type contactor |
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| CN (1) | CN103065878A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103311051A (en) * | 2013-06-27 | 2013-09-18 | 哈尔滨工业大学 | Directly operated type superimposed permanent-magnetic T-shaped armature structure |
| CN103311052A (en) * | 2013-05-23 | 2013-09-18 | 哈尔滨工业大学 | Directly-operated permanent magnet-contained T armature structure |
| CN105593428A (en) * | 2013-09-30 | 2016-05-18 | 皇家飞利浦有限公司 | Stand for supporting garment hanger |
| CN112420316A (en) * | 2020-10-29 | 2021-02-26 | 江麓机电集团有限公司 | DC solenoid type electro-permanent magnet |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2726099Y (en) * | 2004-06-12 | 2005-09-14 | 吉林永大集团有限公司 | Permanent magnetic mechanism for low-voltage contactor |
| CN2867573Y (en) * | 2005-04-22 | 2007-02-07 | 吉林永大集团有限公司 | Low-voltage contactor single-suction permanent magnet mechanism |
| CN201171025Y (en) * | 2008-01-29 | 2008-12-24 | 江苏中金电器设备有限公司 | Permanent magnet control mechanism for electrical switch |
| CN201788905U (en) * | 2010-09-07 | 2011-04-06 | 宝鸡众力通用电器有限公司 | Magnetic keeping electromagnet with state detection |
| CN202259053U (en) * | 2011-09-20 | 2012-05-30 | 扬州华鼎电器有限公司 | Single-coil bi-stable permanent magnet mechanism |
-
2012
- 2012-12-25 CN CN2012105702660A patent/CN103065878A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2726099Y (en) * | 2004-06-12 | 2005-09-14 | 吉林永大集团有限公司 | Permanent magnetic mechanism for low-voltage contactor |
| CN2867573Y (en) * | 2005-04-22 | 2007-02-07 | 吉林永大集团有限公司 | Low-voltage contactor single-suction permanent magnet mechanism |
| CN201171025Y (en) * | 2008-01-29 | 2008-12-24 | 江苏中金电器设备有限公司 | Permanent magnet control mechanism for electrical switch |
| CN201788905U (en) * | 2010-09-07 | 2011-04-06 | 宝鸡众力通用电器有限公司 | Magnetic keeping electromagnet with state detection |
| CN202259053U (en) * | 2011-09-20 | 2012-05-30 | 扬州华鼎电器有限公司 | Single-coil bi-stable permanent magnet mechanism |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103311052A (en) * | 2013-05-23 | 2013-09-18 | 哈尔滨工业大学 | Directly-operated permanent magnet-contained T armature structure |
| CN103311052B (en) * | 2013-05-23 | 2015-11-25 | 哈尔滨工业大学 | Direct Action Type is containing the T-shaped armature structure of permanent magnetism |
| CN103311051A (en) * | 2013-06-27 | 2013-09-18 | 哈尔滨工业大学 | Directly operated type superimposed permanent-magnetic T-shaped armature structure |
| CN103311051B (en) * | 2013-06-27 | 2015-09-02 | 哈尔滨工业大学 | Direct Action Type is put the T-shaped armature structure of permanent magnetism |
| CN105593428A (en) * | 2013-09-30 | 2016-05-18 | 皇家飞利浦有限公司 | Stand for supporting garment hanger |
| CN112420316A (en) * | 2020-10-29 | 2021-02-26 | 江麓机电集团有限公司 | DC solenoid type electro-permanent magnet |
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Application publication date: 20130424 |