CN218676965U - Magnetic conductive combined DC contactor - Google Patents
Magnetic conductive combined DC contactor Download PDFInfo
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- CN218676965U CN218676965U CN202222433236.7U CN202222433236U CN218676965U CN 218676965 U CN218676965 U CN 218676965U CN 202222433236 U CN202222433236 U CN 202222433236U CN 218676965 U CN218676965 U CN 218676965U
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- magnetic conductive
- spring
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- push rod
- direct current
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Abstract
The invention discloses a magnetic conductive combined direct current contactor, which consists of an electromagnetic component, a load component and a shell component, wherein the electromagnetic component comprises a movable iron core, a coil insert, a coil rack, a magnetic conductive ring and a magnetic conductive plate, the shell component comprises a shell and a bottom plate, the load component comprises a stud, a movable contact, a push rod and an over travel spring, the magnetic conductive ring is formed by splicing two semicircular magnetic conductive sheets, and a basin-shaped spring seat is arranged on the push rod and between the movable contact and the over travel spring. The invention solves the problem of assembly clamping, omits the original riveting procedure, improves the working efficiency and reduces the production cost. The basin-shaped spring seat has a positioning effect on the over-travel spring, prevents the over-travel spring from inclining and moving left and right, and enables the spring force to be stable and the contact pressure to be stable. Thereby promoting the product quality of the direct current contactor and prolonging the service life of the direct current contactor.
Description
Technical Field
The invention relates to a direct current contactor for reversing or controlling on-off of current.
Background
A dc contactor (belonging to a relay) is an electrical product equipped for controlling power supply to a line, and reversing or on-off control of current, and is widely used in electric vehicles, industrial power systems, and the like. The dc contactor generally comprises an electromagnetic member, a load member, and a housing member, wherein: the electromagnetism component is including moving the iron core, coil (enameled wire), the coil former, magnetic conduction circle and magnetic conduction board etc, the casing component includes the shell, the bottom plate, the load component includes the movable contact spring, the double-screw bolt, the conducting strip, the push rod, overtravel spring etc, its magnetic conduction circle wraps the coil with whole circle overall structure (one-piece) mode, move the iron core, when assembling the electromagnetism component earlier will be with this magnetic conduction circle suit to the coil former outside and the magnetic conduction board of reassembling, because this magnetic conduction circle has the risk of warping for the sheet metal component, can produce the screens and be difficult to assemble the condition that the assembly can not go into even, and still need a plurality of riveting points to make the electromagnetism component form a whole after the assembly is accomplished, work efficiency is lower. The spring holder that matches with the overtravel spring is planar structure, and in the contactor working process, the spring holder is owing to unable location overtravel spring, and the phenomenon such as slope, translation, distortion can appear at compression and the in-process that resets to the overtravel spring, causes its spring force unbalance, unstability and causes contactor contact pressure unstability, can influence DC contactor's electrical property, produces bad effect to its electrical apparatus of using.
Disclosure of Invention
The invention aims to overcome the defects and provide the magnetic conduction combined type direct current contactor which is convenient to assemble and stable in spring force.
The purpose of the invention is realized by the following technical scheme: the magnetic conduction combined direct current contactor comprises an electromagnetic component, a load component and a shell component, wherein the electromagnetic component comprises a movable iron core, a coil insert, a coil rack, a magnetic conduction ring and a magnetic conduction plate, the shell component comprises a shell and a bottom plate, the load component comprises a stud, a movable contact piece, a push rod and an overtravel spring, the magnetic conduction ring is formed by splicing two semicircular magnetic conduction pieces, and a basin-shaped spring seat is arranged on the push rod and between the movable contact piece and the overtravel spring.
After the invention is adopted, two semicircular magnetic conduction sheets are spliced into a circle from the side surface and are placed on the periphery of the coil rack during assembly, then the magnetic conduction plate is assembled without riveting into a whole, the assembly is convenient, the problem of assembly clamping position is solved, the original riveting procedure is omitted, the working efficiency is improved, and the production cost is reduced. The basin-shaped spring seat has a positioning effect on the over travel spring, prevents the over travel spring from inclining and moving left and right, and enables the spring force of the over travel spring to be balanced and stable, so that the contact pressure of the movable contact piece in contact with the static contact under the stud is stable and balanced and stable, the product quality of the direct current contactor is improved, and the service life of the direct current contactor is prolonged.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and embodiments.
Fig. 1 is a schematic structural diagram of the magnetic conductive combined dc contactor of the present invention.
Fig. 2 isbase:Sub>A sectional viewbase:Sub>A-base:Sub>A of fig. 1.
Detailed Description
Referring to fig. 1 and 2, the magnetic conductive combined dc contactor of the invention comprises an electromagnetic component, a load component and a shell component, wherein the electromagnetic component comprises a movable iron core 11, a coil 12 (i.e. an enameled wire), a coil insert 20, a coil frame 10, a magnetic conductive ring 19 and a magnetic conductive plate 9 (including a magnetic conductive plate at an upper position and a magnetic conductive plate at a lower position), the shell component comprises a shell 21 and a bottom plate 18 (and a connecting rivet 16 and a supporting rubber pad 15), the load component comprises a stud 2 (copper, which has a stationary contact at the lower part), a movable contact 5, a push rod 3 (and a return spring 1 clamped at the top of the push rod 3), and an over travel spring 7, the magnetic conductive ring 19 is formed by splicing two semicircular magnetic conductive plates, and a basin-shaped spring seat 6 is arranged on the push rod 3 and between the movable contact 5 and the over travel spring 7 (the basin-shaped spring seat locates the over travel spring from the basin-shaped edge of the basin-shaped spring seat).
And a bearing 13 is arranged between the movable iron core 11 and the coil rack 10 and between the movable iron core and the lower magnetic conduction plate 9, so that the abrasion of the movable iron core is reduced.
When the invention works, the outside (the part electrically connected with the coil insert) is electrified and is conducted to the coil through the coil insert, so that the coil surrounds the movable iron core to generate a magnetic field, the movable iron core rises to drive the push rod of the load component to rise by magnetic force, and two ends of the movable contact piece are contacted with the static contact under the stud; and finally, the push rod is lowered and the movable iron core is also lowered by the return of the return spring, so that the movable contact piece is separated from the static contact. The invention is mainly applied to the circuit on-off of the direct current power supply load.
Claims (2)
1. Magnetic conduction combination formula direct current contactor comprises electromagnetism component, load component, casing component, and wherein the electromagnetism component is including moving iron core, coil inserted sheet, coil former, magnetic conduction circle and magnetic conduction board, and the casing component includes shell, bottom plate, and the load component includes double-screw bolt, movable contact spring, push rod, over travel spring, its characterized in that: the magnetic conductive ring is formed by splicing two semicircular magnetic conductive sheets, and a basin-shaped spring seat is arranged on the push rod and between the movable contact sheet and the overtravel spring.
2. A magnetically conductive combined dc contactor as claimed in claim 1, wherein: and bearings are arranged among the movable iron core, the coil rack and the magnetic conduction plate at the lower position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222433236.7U CN218676965U (en) | 2022-09-08 | 2022-09-08 | Magnetic conductive combined DC contactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222433236.7U CN218676965U (en) | 2022-09-08 | 2022-09-08 | Magnetic conductive combined DC contactor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218676965U true CN218676965U (en) | 2023-03-21 |
Family
ID=85558021
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222433236.7U Active CN218676965U (en) | 2022-09-08 | 2022-09-08 | Magnetic conductive combined DC contactor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218676965U (en) |
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2022
- 2022-09-08 CN CN202222433236.7U patent/CN218676965U/en active Active
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