CN110942957A - Low-friction high-vibration-resistance contact system structure for contactor - Google Patents
Low-friction high-vibration-resistance contact system structure for contactor Download PDFInfo
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- CN110942957A CN110942957A CN201811107702.4A CN201811107702A CN110942957A CN 110942957 A CN110942957 A CN 110942957A CN 201811107702 A CN201811107702 A CN 201811107702A CN 110942957 A CN110942957 A CN 110942957A
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- contact
- pushing block
- base
- cover plate
- accommodating cavity
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/64—Driving arrangements between movable part of magnetic circuit and contact
- H01H50/641—Driving arrangements between movable part of magnetic circuit and contact intermediate part performing a rectilinear movement
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The invention discloses a contact system structure with low friction and high anti-vibration capability for a contactor, which is characterized in that a rolling bearing is arranged on a pushing block part, so that rolling friction is formed between the pushing block and a base as well as between the pushing block and a cover plate, and the friction force between the pushing block and the base as well as between the pushing block and the cover plate is reduced; the problem of because of the friction frictional force can be along with the aggravation of friction bigger and bigger, the powder that the friction dropped also can bring other bad hidden dangers when wasting coil starting power is solved. In addition, this contact structure provides elasticity for antifriction bearing through the elastic sheet, and the design of elastic sheet makes to promote the piece and is in always by the spacing circumstances of elasticity between apron and base, has reduced the cluster momentum who promotes the piece, and the damping action of elastic sheet makes contact system's anti-vibration performance promoted, simple structure, and the range of application is wide.
Description
Technical Field
The invention relates to a contact system, in particular to a contact system structure with low friction and high vibration resistance for a contactor.
Background
The high-power relay and the contactor are applied to the on-off and switching of a high-power load power supply, and along with the more and more severe use environment, the application of products is promoted from a ground part to an aviation part, provides a rigorous checking requirement on the anti-vibration performance of the product, and requires the pressure (effective counter force) of the contact to be continuously improved along with the continuous improvement of the requirement on environmental performance parameters, on the premise that the power of the coil cannot be changed, the invalid counter force of the system can be reduced, the force of the coil in the contactor can be effectively utilized to the maximum extent, most of the materials of the pushing block at present are plastics, the base is also plastics, and the structural strength is enhanced, glass fiber is added into the plastic parts for reinforcement, when the two parts move mutually, the sliding friction force generated is very large, the sliding friction force of the part is increased along with the increase of friction, and other adverse risks are brought by the powder falling due to friction while the starting power of the coil is wasted.
Disclosure of Invention
The invention aims to solve the problem that the performance of a contactor is influenced because powder falls off from parts due to friction because of sliding friction force generated by mutual movement between the two parts in a contact system in the conventional relay.
The invention provides a contact system structure with low friction and high anti-vibration capability for a contactor, which comprises:
the device comprises a pushing block, a contact piece and a contact piece, wherein the pushing block is provided with a main contact accommodating cavity and an auxiliary contact accommodating cavity, a main contact pressure spring, a main contact guide sleeve and a main contact movable reed are arranged in the main contact accommodating cavity, and an auxiliary contact pressure spring, an auxiliary contact guide sleeve and an auxiliary contact movable reed are arranged in the auxiliary contact accommodating cavity;
the contact device comprises a base, a contact device and a control device, wherein a main contact accommodating cavity and an auxiliary contact accommodating cavity are arranged on the base, and a main contact static reed is arranged in the main contact accommodating cavity; an auxiliary contact static reed is arranged in the auxiliary contact accommodating cavity;
the transmission rod is used for driving the pushing block to move;
the cover plate covers the base, and a space for the pushing block to slide is formed between the cover plate and the base;
the pushing block is arranged in a space formed by the base and the cover plate through a rolling bearing; the pushing block slides in a space formed by the base and the cover plate under the driving of the transmission rod, so that a main contact movable spring and an auxiliary contact movable spring on the pushing block are respectively contacted with the main contact static spring and the auxiliary contact static spring.
Further, the contact system structure also comprises an elastic sheet for providing elastic force for the rolling bearing.
Furthermore, a cover plate covers the base, and the cover plate is in contact with the pushing block through the rolling bearing.
Further, the inner periphery of the cover plate is provided with a sealing ring.
Furthermore, two rolling bearings are arranged on one face, opposite to the base, of the pushing block, and two rolling bearings are arranged on one face, opposite to the cover plate, of the pushing block.
The invention has the beneficial effects that: rolling friction is formed between the pushing block and the base and between the pushing block and the cover plate by arranging the rolling bearing on the pushing block part, so that the friction force between the pushing block and the base and between the pushing block and the cover plate is reduced; the problem of because of the friction frictional force can be along with the aggravation of friction bigger and bigger, the powder that the friction dropped also can bring other bad hidden dangers when wasting coil starting power is solved.
This contact structure provides elasticity for antifriction bearing through the elastic sheet, and the design of elastic sheet makes to promote the piece and is in always by the elasticity under spacing circumstances between apron and base, has reduced the cluster momentum who promotes the piece, and the damping effect of elastic sheet makes contact system's anti-vibration performance promoted, simple structure, and the range of application is wide.
In conclusion, the structure of the invention is simple, the friction force is reduced by the design of the rolling bearing and the elastic sheet, the vibration resistance is stronger, the contact in the contact system is stable, and the application range is wide.
Drawings
FIG. 1 is a cross-sectional view of a contact system configuration provided by the present invention;
FIG. 2 is a top view of the contact system structure provided by the present invention without the cover plate covering;
FIG. 3 is a view showing the combination of an elastic piece and a rolling bearing provided by the present invention;
FIG. 4 is a schematic structural diagram of deformation of an elastic sheet according to the present invention;
in the figure: 1-push block, 2-base, 3-rolling bearing, 4-transmission rod, 5-elastic sheet, 6-cover plate, 7-sealing ring, 8-fixed shaft, 11-main contact containing cavity A, 12-auxiliary contact containing cavity A, 21-main contact containing cavity B, 22-auxiliary contact containing cavity B, 111-main contact pressure spring, 112-main contact guide sleeve, 113-main contact movable spring, 121-auxiliary contact pressure spring, 122-auxiliary contact guide sleeve, 123-auxiliary contact movable spring, 211-main contact static spring and 221-auxiliary contact static spring.
Detailed Description
For better explanation of the claimed embodiments, the claimed embodiments will be described in further detail with reference to the drawings and the detailed description.
As shown in fig. 1 to 2, the present invention claims a contact system structure with low friction and high anti-vibration capability for a contactor, which realizes rolling sliding by a rolling bearing, the contact system structure comprising:
the push block 1 is provided with a main contact accommodating cavity A11 and an auxiliary contact accommodating cavity A12, the cavity wall of the main contact accommodating cavity A11 is provided with a through hole A, a main contact pressure spring 111, a main contact guide sleeve 112 and a main contact movable spring 113 are arranged in the main contact accommodating cavity A11, one end of the main contact pressure spring 111 is attached to the cavity wall of one side of the main contact accommodating cavity 11, the fixed side of the main contact movable spring 113 is fixed to the cavity wall of the other side of the main contact accommodating cavity 11, and the other end of the main contact pressure spring 111 acts on the fixed side of the main contact movable spring 113 through the main contact guide sleeve 112; the movable side of the main contact movable reed 113 extends out of the main contact accommodating cavity 11 along the through hole a, so as to be convenient for contacting with the main contact static reed 211; a through hole B is formed in the cavity wall of the auxiliary contact accommodating cavity A12, and an auxiliary contact pressure spring 121, an auxiliary contact guide sleeve 122 and an auxiliary contact movable spring 123 are arranged in the auxiliary contact accommodating cavity A12; the fixed side of the auxiliary contact movable reed 123 is fixed in the auxiliary contact accommodating cavity 12, the movable end extends out of the auxiliary contact accommodating cavity 12 along the through hole B, one end of the auxiliary contact pressure spring 121 is attached to one side of the auxiliary contact accommodating cavity 12, and the other end acts on the auxiliary contact movable reed 123 through the auxiliary contact guide sleeve 122;
a base 2, the base 2 being provided with a main contact accommodating chamber B21 and an auxiliary contact accommodating chamber B22, the main contact accommodating chamber B21 being provided with a main contact static spring 211; an auxiliary contact static spring piece 221 is arranged in the auxiliary contact accommodating cavity B22;
the transmission rod 4 is used for driving the pushing block 1 to move;
the cover plate 6 covers the base 2, and a space for pushing the block 1 to slide is formed between the cover plate and the base 2;
the pushing block 1 is arranged in a space formed by the base 2 and the cover plate 6 through a rolling bearing 2; the pushing block 1 is driven by the transmission rod 4 to slide in a space formed by the base 2 and the cover plate 6, and rolling friction is formed between the pushing block 1 and the base 2 as well as between the pushing block 1 and the cover plate 6; during the sliding, the main contact movable spring piece 113 and the auxiliary contact movable spring piece 123 on the push block 1 are in contact with the main contact stationary spring piece 211 and the auxiliary contact stationary spring piece 221, respectively.
One end of the transmission rod 4 is installed in the pushing block 1 through the fixed shaft 8, the other end is vacant and used as a recording end of the driving force F, when the driving force F is loaded on the vacant end of the transmission rod 4, the transmission rod 4 applies the driving force to the pushing block 1, so that the pushing block moves left and right as shown in figure 1, the main contact movable spring 113 and the auxiliary contact movable spring 123 on the pushing block are driven to be in contact with the main contact static spring 211 and the auxiliary contact static spring 221 on the base 2, and a contact system is formed. When the pushing block 2 moves under the action of the driving force F, rolling friction is formed between the pushing block and the base 2 and between the pushing block and the cover plate 6, so that the friction force between the pushing block and the base is reduced, and the bad hidden danger caused by dust falling of parts due to large friction force is effectively avoided.
Because the anti-vibration performance of the product is related to the crosstalk amount of the movable part, and the vibration performance is higher than that of a structure with large crosstalk amount when the crosstalk amount is small or no crosstalk, in order to reduce the crosstalk of the pushing block 1 in the structure of the contact system, improve the anti-vibration performance of the whole contact system and ensure the contact stability of the contact system, the structure of the contact system provided by the invention is additionally provided with an elastic sheet 5 for providing elasticity for the rolling bearing 3 on the basis of the above technology, and the structure of combining the elastic sheet 5 and the rolling bearing 3 is shown in fig. 3. When the pushing block 1 moves under the action of the driving force F, the elastic sheet 5 deforms, as shown in FIG. 4; deformation that elastic sheet 5 produced is exerted on antifriction bearing 3, and antifriction bearing 3 transmits elastic sheet 5's power to apron 6 and base 2, because apron 6 and base 2 are fixed for promote 1 course of motion by being restricted in the space that is formed by apron 6 and base 2, reduced the play of promotion 1, improved the anti vibration nature of contact system, guaranteed the stability of contact.
Specifically, two rolling bearings 3 are arranged on one face, opposite to the base 2, of the pushing block 1, two rolling bearings 3 are arranged on one face, opposite to the cover plate 6, of the pushing block 1, and the upper rolling bearing and the lower rolling bearing enable the pushing block 1 to be in rolling friction when moving left and right under the action of F force, so that friction force is reduced. Each rolling bearing 3 is provided with elastic force by two elastic sheets, so that the pushing block 1 is better ensured to be limited in a space formed by the base 2 and the cover plate 6, the contact of a contact system is more stable, and the anti-vibration performance is better.
Specifically, the inner periphery of the cover plate 6 is provided with a sealing ring 7, so that the space formed by the base 2 and the cover plate 6 has better sealing performance.
Claims (5)
1. The utility model provides a contactor is with high anti-vibration ability contact system structure of low friction power which characterized in that: the structure includes:
the contact device comprises a push block (1), wherein a main contact accommodating cavity (11) and an auxiliary contact accommodating cavity (12) are arranged on the push block (1), a main contact pressure spring (111), a main contact guide sleeve (112) and a main contact movable reed (113) are arranged in the main contact accommodating cavity (11), and an auxiliary contact pressure spring (121), an auxiliary contact guide sleeve (122) and an auxiliary contact movable reed (123) are arranged in the auxiliary contact accommodating cavity (12);
the contact device comprises a base (2), wherein a main contact accommodating cavity (21) and an auxiliary contact accommodating cavity (22) are arranged on the base (2), and a main contact static reed (211) is arranged in the main contact accommodating cavity (21); an auxiliary contact static spring piece (221) is arranged in the auxiliary contact accommodating cavity (22);
the transmission rod (4) is used for driving the pushing block (1) to move;
the cover plate (6) covers the base (2) and forms a space for the pushing block (1) to slide with the base (2);
the pushing block (1) is arranged in a space formed by the base (2) and the cover plate (6) through a rolling bearing (3); the pushing block (1) slides in a space formed by the base (2) and the cover plate (6) under the driving of the transmission rod (4), so that a main contact movable spring piece (113) and an auxiliary contact movable spring piece (123) on the pushing block (1) are respectively contacted with the main contact static spring piece (211) and the auxiliary contact static spring piece (221).
2. The contact system structure with low friction and high anti-vibration capability of claim 1, wherein: the rolling bearing further comprises an elastic sheet (5) used for providing elastic force for the rolling bearing (3).
3. The contact system structure with low friction and high anti-vibration capability for a contactor according to claim 1 or 2, wherein: and a sealing ring (7) is arranged on the inner periphery of the cover plate (6).
4. The contact system structure with low friction and high anti-vibration capability for a contactor according to claim 1 or 2, wherein: two rolling bearings (3) are arranged on one face, opposite to the base (2), of the pushing block (1), and two rolling bearings (3) are arranged on one face, opposite to the cover plate (6), of the pushing block (1).
5. The contact system structure with low friction and high anti-vibration capability of claim 3, wherein: two rolling bearings (3) are arranged on one face, opposite to the base (2), of the pushing block (1), and two rolling bearings (3) are arranged on one face, opposite to the cover plate (6), of the pushing block (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811107702.4A CN110942957B (en) | 2018-09-21 | 2018-09-21 | Low-friction high-vibration-resistance contact system structure for contactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811107702.4A CN110942957B (en) | 2018-09-21 | 2018-09-21 | Low-friction high-vibration-resistance contact system structure for contactor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110942957A true CN110942957A (en) | 2020-03-31 |
| CN110942957B CN110942957B (en) | 2022-02-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811107702.4A Active CN110942957B (en) | 2018-09-21 | 2018-09-21 | Low-friction high-vibration-resistance contact system structure for contactor |
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| CN (1) | CN110942957B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2382126Y (en) * | 1999-08-17 | 2000-06-07 | 厦门宏发电声有限公司 | Small size large power electromagnetic relay |
| CN2531519Y (en) * | 2001-11-20 | 2003-01-15 | 厦门宏发电声有限公司 | Electromagnetic relay with good flexible movable contact spring |
| CN103267137A (en) * | 2013-06-05 | 2013-08-28 | 温州市捷宇阀门制造有限公司 | Low-moment bidirectional static friction abrasion-free seal gate valve |
| CN203413140U (en) * | 2013-07-08 | 2014-01-29 | 浙江瓯明流体铸业有限公司 | Handle base positioning bearing labor-saving mechanism for butterfly valve |
| CN105465168A (en) * | 2014-09-29 | 2016-04-06 | 斯凯孚公司 | Rolling bearing |
| CN106458250A (en) * | 2014-04-28 | 2017-02-22 | 蒂森克虏伯普利斯坦股份公司 | Device for applying auxiliary force in motor vehicle steering system |
| CN206426127U (en) * | 2017-02-09 | 2017-08-22 | 黄良志 | A kind of jackknife that system is rolled with ceramic bead |
| CN207199539U (en) * | 2017-07-31 | 2018-04-06 | 陕西群力电工有限责任公司 | A kind of Three phase contactor |
-
2018
- 2018-09-21 CN CN201811107702.4A patent/CN110942957B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2382126Y (en) * | 1999-08-17 | 2000-06-07 | 厦门宏发电声有限公司 | Small size large power electromagnetic relay |
| CN2531519Y (en) * | 2001-11-20 | 2003-01-15 | 厦门宏发电声有限公司 | Electromagnetic relay with good flexible movable contact spring |
| CN103267137A (en) * | 2013-06-05 | 2013-08-28 | 温州市捷宇阀门制造有限公司 | Low-moment bidirectional static friction abrasion-free seal gate valve |
| CN203413140U (en) * | 2013-07-08 | 2014-01-29 | 浙江瓯明流体铸业有限公司 | Handle base positioning bearing labor-saving mechanism for butterfly valve |
| CN106458250A (en) * | 2014-04-28 | 2017-02-22 | 蒂森克虏伯普利斯坦股份公司 | Device for applying auxiliary force in motor vehicle steering system |
| CN105465168A (en) * | 2014-09-29 | 2016-04-06 | 斯凯孚公司 | Rolling bearing |
| CN206426127U (en) * | 2017-02-09 | 2017-08-22 | 黄良志 | A kind of jackknife that system is rolled with ceramic bead |
| CN207199539U (en) * | 2017-07-31 | 2018-04-06 | 陕西群力电工有限责任公司 | A kind of Three phase contactor |
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| CN110942957B (en) | 2022-02-18 |
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