CN215299076U - Contact plate switch cover combined mechanism - Google Patents
Contact plate switch cover combined mechanism Download PDFInfo
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- CN215299076U CN215299076U CN202121891153.1U CN202121891153U CN215299076U CN 215299076 U CN215299076 U CN 215299076U CN 202121891153 U CN202121891153 U CN 202121891153U CN 215299076 U CN215299076 U CN 215299076U
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Abstract
The application relates to a contact plate switch cover combined mechanism, it includes the open switch housing in upper end, fixedly connected with electromagnetism post in the switch housing, the lateral wall coiling of electromagnetism post has solenoid, the electromagnetism post has seted up the groove of sliding along its axis direction, the inslot cunning that slides is provided with movable iron core, movable iron core's lateral wall is provided with the contact plate, switch housing's upper end fixedly connected with switch cover, switch cover fixedly connected with terminal, the terminal is provided with two, and two the terminal is connected with the positive negative pole of power, the terminal is close to the one end fixedly connected with copper of contact plate, contact plate and copper butt. The electromagnetic switch has the advantages that fusion welding is not easy to occur, and the electromagnetic switch is not easy to burn.
Description
Technical Field
The application relates to the field of electromagnetic switches, in particular to a contact plate switch cover combined mechanism.
Background
The electromagnetic switch is a switch controlled by an electromagnet, electromagnetic attraction is generated after the electromagnet coil is electrified, and the movable iron core pushes or pulls the switch contact to be closed, so that a controlled circuit is switched on.
Related art as shown in fig. 1, the switch comprises a switch housing 1, the switch housing 1 is hollow, a switch cover 2 is fixedly connected to the upper end of the switch housing 1, terminals 3 are fixedly connected to the side wall of the switch cover 2, the two terminals 3 are respectively connected to the positive electrode and the negative electrode of a power supply, an electromagnetic column 4 is fixedly connected to the inside of the switch housing 1, an electromagnetic coil 5 is wound on the side wall of the electromagnetic column 4, a sliding groove 6 is formed in the electromagnetic column 4 along the axis direction of the electromagnetic column, a movable iron core 7 is slidably arranged in the sliding groove 6, and a contact plate 8 is fixedly connected to the upper end of the movable iron core 7. The movable core 7 is moved in the direction of the terminal 3 by energizing the electromagnetic coil 5, and the communication of the circuit is controlled by the contact of the contact plate 8 with the terminal 3.
Aiming at the related technology, when the electromagnetic switch is switched on, the generated instantaneous inrush current is high, when the electromagnetic switch is used in the environment, the electromagnetic switch contact plate is easy to generate fusion welding failure before the service life is not reached, namely, the electromagnetic switch is adhered, so that the electromagnetic switch is burnt, and the inventor thinks that the electromagnetic switch is easy to burn.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem that an electromagnetic switch is easy to burn, the application provides a contact plate switch cover combination mechanism.
The application provides a contact plate switch lid combined mechanism adopts following technical scheme:
the utility model provides a contact plate switch cover combined mechanism, includes the open switch housing in upper end, fixedly connected with electromagnetism post in the switch housing, the lateral wall coiling of electromagnetism post has solenoid, the electromagnetism post has seted up the groove of sliding along its axis direction, the inslot cunning that slides is provided with movable iron core, movable iron core's lateral wall is provided with the contact plate, switch housing's upper end fixedly connected with switch cover, switch cover fixedly connected with terminal, the terminal is provided with two, and two the terminal is connected with the positive negative pole of power, the terminal is close to the one end fixedly connected with copper of contact plate, contact plate and copper butt.
Through adopting above-mentioned technical scheme, because the electric arc that produces in the electromagnetic switch closure process leads to the contact plate fusion welding easily, and pure copper, copper alloy, copper base combined material all have good fusion welding resistance ability, consequently, at the tip fixedly connected with copper of terminal, when movable iron core moves towards the direction of terminal, the lateral wall and the copper butt of contact plate to reduce fusion welding power after fusion welding metal welding together, thereby improve the fusion welding resistance ability of contact plate.
Optionally, the contact plate is towards the lateral wall fixedly connected with a plurality of contact points of terminal, and a plurality of the contact points are evenly arranged along the circumferencial direction, the contact point is the round platform form, the diameter of contact point by the terminal orientation the direction of activity iron core is crescent.
Through adopting above-mentioned technical scheme, set up a plurality of contact points, at this moment, when the contact plate moved towards the direction of terminal, contact point and copper butt this moment owing to adopted the mode of compound contact reposition of redundant personnel to it has improved electromagnetic switch's anti-adhesion property to have reduced the joule heat effect.
Optionally, the contact plate is provided with a plurality of weight reduction grooves on a side wall deviating from the terminal, and the weight reduction grooves are uniformly distributed along the circumferential direction.
By adopting the technical scheme, the weight of the contact plate is reduced by arranging the weight reduction groove, the suction time of the electromagnetic switch is shortened, the frequency of electric arcs generated between the copper sheet and the contact point is reduced, and the anti-adhesion performance of the electromagnetic switch is improved.
Optionally, the movable iron core penetrates through the insulating gasket and the insulating table, one side of the contact plate is abutted to the insulating gasket, the other side of the contact plate is abutted to the insulating table, and the end part of the movable iron core is in threaded connection with a nut used for limiting the separation of the insulating gasket.
Through adopting above-mentioned technical scheme, through setting up insulating washer and insulating stage, further reduced the number of times that produces electric arc, reduced the possibility of contact plate and terminal adhesion.
Optionally, the spread groove has been seted up to the lateral wall of contact plate, the lateral wall fixedly connected with spliced pole of insulating station, the confession has been seted up along its axis direction to insulating station the movable iron core stretches into dodge the groove, dodge the opening diameter in groove with the diameter of movable iron core equals, the opening diameter of spread groove with the diameter of spliced pole equals, the spliced pole stretches into the spread groove makes the movable iron core the insulating station the contact plate three is fixed.
Through adopting above-mentioned technical scheme, the opening diameter through dodging the groove equals with movable iron core's diameter, and the opening diameter of spread groove equals with the diameter of spliced pole to make movable iron core stretch into and dodge the inslot, the spliced pole stretches into in the spread groove, through the mode of riveting, thereby fixed with movable iron core, insulating stand, contact plate three, when reducing to adopt welding mode to fix, because of the influence of electric arc, the possibility that the welding coating breaks away from.
Optionally, the contact point weld in the contact plate orientation the lateral wall of terminal direction, the contact point is cylindricly, the axis direction of contact point with movable iron core's axis direction is parallel, the contact point is provided with a plurality of, a plurality of contact point along circumferencial direction evenly distributed in the lateral wall of contact plate.
Through adopting above-mentioned technical scheme, because the even distribution in the lateral wall of contact plate of a plurality of contact points along the circumferencial direction, through the mode of compound contact reposition of redundant personnel, reduce joule heat and act on the anti-adhesion performance that improves electromagnetic switch, simultaneously, the operator can choose the less contact point of diameter for use to reduce the quality of contact plate, and then shorten electromagnetic switch's actuation time.
Optionally, the contact point is welded on the side wall of the contact plate facing the terminal direction, the contact point is conical, the diameter of the contact point is gradually increased from the terminal to the movable iron core, the contact point is provided with a plurality of contact points, and the plurality of contact points are circumferentially distributed on the side wall of the contact plate.
By adopting the technical scheme, the contact point is arranged in a conical shape, so that the distance between the end part of the contact point and the end part of the adjacent contact point is increased, and the possibility of electric arc generation is reduced.
Optionally, the contact point weld in the contact plate orientation the lateral wall of terminal direction, the contact point is the hemisphere, the diameter of contact point by the terminal orientation movable core's direction is crescent, the contact point is provided with a plurality of, a plurality of contact point be the circumference distribute in the lateral wall of contact plate.
Through adopting above-mentioned technical scheme, because the contact point adopts the hemisphere setting, the surface of contact point is the arc, through reducing friction to improve electromagnetic switch's anti-adhesion performance.
In summary, the present application includes at least one of the following beneficial technical effects:
by arranging the copper plate, the fusion welding tendency of the contact plate is reduced, and meanwhile, the thermophysical property of a material at one end of the terminal is improved, so that the fusion welding force of fusion welding metals welded together is reduced, and the fusion welding resistance is further improved;
through making a plurality of contact points evenly distributed, adopted the form of compound contact reposition of redundant personnel to reduce the joule heat effect to electromagnetic switch's adhesion performance has been improved.
Drawings
Fig. 1 is a schematic cross-sectional view of a contact plate and a switch cover according to the present application.
Fig. 2 is a schematic cross-sectional view of embodiment 1 of the present application.
Fig. 3 is a schematic view of a contact plate according to embodiment 2 of the present application.
Fig. 4 is a schematic view of a contact plate according to embodiment 3 of the present application.
Fig. 5 is a schematic view of a contact plate according to embodiment 4 of the present application.
Description of reference numerals: 1. a switch housing; 2. a switch cover; 3. a terminal; 4. an electromagnetic column; 5. an electromagnetic coil; 6. a sliding groove; 7. a movable iron core; 8. a contact plate; 9. an iron core groove; 10. a copper plate; 11. an insulating stage; 12. an insulating spacer; 13. a flat washer; 14. a nut; 15. connecting columns; 16. connecting grooves; 17. an avoidance groove; 18. a contact point; 19. and a weight reduction groove.
Detailed Description
The present application is described in further detail below with reference to figures 1-5.
Example 1:
referring to fig. 2, the combined mechanism includes switch housing 1, and switch housing 1 is cylindricly, and switch housing 1's inside cavity and switch housing 1's upper end are uncovered setting, and switch housing 1's upper end is provided with switch cover 2, and switch housing 1 is fixed through the riveting with switch cover 2. Through mode fixedly connected with electromagnetism post 4 of riveting in the switch housing 1, electromagnetism post 4 is cylindricly, and switch housing 1's axis and the coincidence of the axis of electromagnetism post 4, the circumference lateral wall of electromagnetism post 4 is convoluteed there is solenoid 5, and the groove 6 that slides has been seted up to the axis direction of electromagnetism post 4, and the inslot 6 that slides is provided with movable iron core 7, and the upper end of movable iron core 7 is provided with contact plate 8. The mode fixed connection that terminal 3 and switch cover 2 pass through the bolt has been cup jointed along vertical direction to switch cover 2, and terminal 3 is provided with two in this embodiment, and two terminals 3 are connected with the positive negative pole of power respectively, and switch cover 2 offers the iron core groove 9 that supplies movable iron core 7 to stretch into towards the lateral wall of movable iron core 7.
Referring to fig. 2, a copper plate 10, which may be copper alloy or copper-based composite material, is welded to an end of the terminal 3 close to the contact plate 8 by brazing, and the copper plate 10 is disposed along a horizontal direction.
Referring to fig. 2, an insulating table 11, an insulating gasket 12, a flat washer 13, a nut 14 are sequentially arranged on a movable iron core 7 from top to bottom in a penetrating manner, the nut 14, the flat washer 13, the insulating gasket 12, a contact plate 8 and the insulating table 11 are sequentially arranged from top to bottom, the lower surface of the insulating table 11 is abutted to the upper surface of an electromagnetic pole 4, a connecting column 15 is welded to the upper surface of the insulating table 11, the lower surface of the contact plate 8 is abutted to the upper surface of the insulating table 11, a connecting groove 16 into which the connecting column 15 extends is formed in the lower surface of the contact plate 8, the diameter of the connecting column 15 is equal to the opening diameter of the connecting groove 16, an operator can make the connecting column 15 extend into the connecting groove 16, then fix the contact plate 8 and the insulating table 11 by riveting, the insulating table 11 is provided with an avoiding groove 17 along the axial direction of the insulating table 11, the diameter of the movable iron core 7 is equal to the opening diameter of the avoiding groove 17, the operator can make the movable iron core 7 extend into the avoiding groove 17 to fix the insulating table 11 and the movable iron core 7 by riveting, further fixing the insulation table 11, the movable iron core 7 and the contact plate 8.
Referring to fig. 2, the upper surface of contact plate 8 abuts against insulating spacer 12, the lower side of insulating spacer 12 abuts against contact plate 8, the upper side of insulating spacer 12 abuts against the lower surface of flat washer 13, the upper surface of flat washer 13 abuts against nut 14, nut 14 is screwed to the upper end of movable core 7, and flat washer 13 is seen and insulating spacer 12 is fixed by providing nut 14.
Referring to fig. 2, the contact plate 8 is provided with a plurality of contact points 18 towards the side wall of the terminal 3, the plurality of contact points 18 are uniformly arranged along the circumferential direction, the contact points 18 are in a circular truncated cone shape, and the diameter of the contact points 18 gradually increases from the terminal 3 towards the movable core 7. The side wall of the contact plate 8, which is far away from the contact point 18, is provided with a plurality of lightening grooves 19, the opening positions of the lightening grooves 19 are aligned with the opening positions of the contact points 18 in the vertical direction, the lightening grooves 19 are in a circular truncated cone shape as a whole, the side wall of the lightening grooves 19 can be arranged by punching the contact plate 8, so that the contact point 18 is formed on one side of the contact plate 8, and the lightening grooves 19 are formed on the other side of the contact plate 8.
The implementation principle of the embodiment 1 is as follows: by adopting the copper plate 10, the fusion welding resistance of the contact plate 8 is improved, and meanwhile, as the contact points 18 are distributed on the side wall of the contact plate 8 at intervals, the Joule heat effect is reduced by adopting the form of composite contact shunting, so that the adhesion resistance of the electromagnetic switch is improved.
Example 2:
referring to fig. 2 and 3, embodiment 2 differs from embodiment 1 in that: the contact points 18 are cylindrical, the axial direction of the contact points 18 is parallel to the axial direction of the movable iron core 7, and the contact points 18 are uniformly distributed on the side wall of the contact plate 8 along the circumferential direction.
The principle of the embodiment 2 is as follows: because the shape of the contact point 18 is cylindrical, an operator can select the contact point 18 with smaller diameter, so that the quality of the contact plate 8 is reduced, the suction time of the electromagnetic switch is shortened, the frequency of electric arcs generated between a moving contact and a static contact is reduced, and the anti-adhesion performance of the electromagnetic switch is improved.
Example 3:
referring to fig. 2 and 4, embodiment 3 differs from embodiment 1 in that: the contact points 18 are conical, the diameter of the contact points 18 gradually increases from the terminal 3 to the movable iron core 7, and a plurality of contact points 18 are circumferentially distributed on the side wall of the contact plate 8.
The implementation principle of the embodiment 3 is as follows: since contact point 18 is conical, contact point 18 is brought into contact with copper plate 10 while contact plate 8 is moved in the direction of copper plate 10, and the contact area between contact plate 8 and copper plate 10 is reduced, thereby improving the anti-blocking property of the electromagnetic switch.
Example 4:
referring to fig. 2 and 5, embodiment 4 differs from embodiment 1 in that: the contact points 18 are hemispheroids, the diameter of the contact points 18 gradually increases from the terminal 3 to the movable iron core 7, and a plurality of the contact points 18 are uniformly distributed on the side wall of the contact plate 8 along the circumferential direction.
The implementation principle of the embodiment 4 is as follows: when the contact plate 8 moves towards the copper plate 10, the contact strip moves towards the copper plate 10 until the contact point 18 abuts against the copper plate 10, and the contact point 18 is a hemisphere, so that the copper plate 10 contacts with the cambered surface of the contact point 18, friction is reduced, and the possibility of adhesion of the electromagnetic switch is reduced.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (8)
1. The utility model provides a contact plate switch lid combined mechanism, includes open switch housing (1) in upper end, fixedly connected with electromagnetism post (4) in switch housing (1), the lateral wall of electromagnetism post (4) is convoluteed there are solenoid (5), groove (6) of sliding has been seted up along its axis direction in electromagnetism post (4), it is provided with movable iron core (7) to slide in groove (6), the lateral wall of movable iron core (7) is provided with contact plate (8), upper end fixedly connected with switch lid (2) of switch housing (1), switch lid (2) fixedly connected with terminal (3), terminal (3) are provided with two, and two terminal (3) are connected with the positive negative pole of power, its characterized in that: one end of the terminal (3) close to the contact plate (8) is fixedly connected with a copper plate (10), and the contact plate (8) is abutted to the copper plate (10).
2. A contact plate switch cover assembly as claimed in claim 1, wherein: contact plate (8) orientation the lateral wall fixedly connected with of terminal (3) a plurality of contact points (18), it is a plurality of contact points (18) are evenly arranged along the circumferencial direction, contact point (18) are the round platform form, the diameter of contact point (18) by terminal (3) orientation the direction of activity iron core (7) increases gradually.
3. A contact plate switch cover assembly as claimed in claim 2, wherein: the side wall of the contact plate (8) departing from the terminal (3) is provided with a plurality of lightening grooves (19), and the lightening grooves (19) are uniformly distributed along the circumferential direction.
4. A contact plate switch cover assembly as claimed in claim 3, wherein: insulating pad (12) and insulating stand (11) are worn to establish by activity iron core (7), one side of contact plate (8) with insulating pad (12) butt, the opposite side of contact plate (8) with insulating stand (11) butt, the tip threaded connection of activity iron core (7) has and is used for the restriction nut (14) that insulating pad (12) break away from.
5. A contact plate switch cover assembly as claimed in claim 4, wherein: spread groove (16) have been seted up to the lateral wall of contact plate (8), the lateral wall fixedly connected with spliced pole (15) of insulation platform (11), insulation platform (11) have been seted up along its axis direction and have been supplied activity iron core (7) stretch into dodge groove (17), the opening diameter of dodging groove (17) with the diameter of activity iron core (7) equals, the opening diameter of spread groove (16) with the diameter of spliced pole (15) equals, spliced pole (15) stretch into spread groove (16) and make activity iron core (7) insulation platform (11) contact plate (8) three is fixed.
6. A contact plate switch cover assembly as claimed in claim 2, wherein: contact point (18) weld in contact plate (8) orientation the lateral wall of terminal (3) direction, contact point (18) are cylindricly, the axis direction of contact point (18) with the axis direction of activity iron core (7) is parallel, contact point (18) are provided with a plurality of, a plurality of contact point (18) along circumferencial direction evenly distributed in the lateral wall of contact plate (8).
7. A contact plate switch cover assembly as claimed in claim 2, wherein: contact point (18) weld in contact plate (8) orientation the lateral wall of terminal (3) direction, contact point (18) are coniformly, the diameter of contact point (18) by terminal (3) orientation the direction of activity iron core (7) is crescent, contact point (18) are provided with a plurality of, a plurality of contact point (18) are the circumference distribute in the lateral wall of contact plate (8).
8. A contact plate switch cover assembly as claimed in claim 2, wherein: contact point (18) weld in contact plate (8) orientation the lateral wall of terminal (3) direction, contact point (18) are the hemisphere, the diameter of contact point (18) by terminal (3) orientation the direction of activity iron core (7) is crescent, contact point (18) are provided with a plurality of, a plurality of contact point (18) are the circumference distribute in the lateral wall of contact plate (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121891153.1U CN215299076U (en) | 2021-08-12 | 2021-08-12 | Contact plate switch cover combined mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121891153.1U CN215299076U (en) | 2021-08-12 | 2021-08-12 | Contact plate switch cover combined mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215299076U true CN215299076U (en) | 2021-12-24 |
Family
ID=79527173
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121891153.1U Active CN215299076U (en) | 2021-08-12 | 2021-08-12 | Contact plate switch cover combined mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215299076U (en) |
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2021
- 2021-08-12 CN CN202121891153.1U patent/CN215299076U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 314100 No. 3933, Waihuan East Road, Huimin street, Jiashan County, Jiaxing City, Zhejiang Province Patentee after: JIASHAN QIUXIN PRECISION ELECTROMECHANICAL MANUFACTURING Co.,Ltd. Address before: 314100 No. 3933, Waihuan East Road, Huimin street, Jiashan County, Jiaxing City, Zhejiang Province Patentee before: Jiashan Qiuxin precision electromechanical Co.,Ltd. |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A contact plate switch cover combination mechanism Effective date of registration: 20230504 Granted publication date: 20211224 Pledgee: Zhejiang Jiashan Rural Commercial Bank Co.,Ltd. Shangcheng sub branch Pledgor: JIASHAN QIUXIN PRECISION ELECTROMECHANICAL MANUFACTURING Co.,Ltd. Registration number: Y2023980039729 |