CN213752554U - Novel heavy current normally-open direct current contactor - Google Patents
Novel heavy current normally-open direct current contactor Download PDFInfo
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- CN213752554U CN213752554U CN202022580859.8U CN202022580859U CN213752554U CN 213752554 U CN213752554 U CN 213752554U CN 202022580859 U CN202022580859 U CN 202022580859U CN 213752554 U CN213752554 U CN 213752554U
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Abstract
The utility model discloses a novel heavy current normally open DC contactor, wherein an upper bracket is arranged at the top of a lower bracket, a support is arranged on the front side of the upper bracket, a sealing cover is connected and fixed with the support through a countersunk screw, and a static contact piece is arranged between the sealing cover and the support; a coil rack is arranged between the inner part of the lower bracket and the upper bracket, an upper push rod sleeve and a lower push rod sleeve are arranged in the coil rack, and a lower reset spring is arranged between the upper push rod sleeve and the lower push rod sleeve; an upper push rod fixing piece is fixed at the top of the upper push rod sleeve through a screw, a split pin is arranged at the center of the upper push rod fixing piece, and the split pin is sequentially provided with a fixed shaft sleeve, a flat pad, a convex positioning sleeve, a movable contact spring, a flat pad and an upper reset spring from bottom to top. The utility model discloses be equipped with auxiliary switch on the upper bracket, be connected auxiliary switch and enameled wire through the connecting wire, auxiliary switch is connected with external current, and not only the electric current is big, guarantees that the electric current is stable simultaneously, and reset spring stretches about the inside adoption, makes movable contact and static contact, then work.
Description
Technical Field
The utility model relates to a contactor technical field, more specifically the utility model relates to a novel direct current contactor is normally opened to heavy current that says so.
Background
At present, in the design of the direct current contactor, in order to extinguish and break the arc, a magnetic quenching principle is often adopted. Two opposite permanent magnets are arranged around the arc, and the arc extinguishing effect is better when the magnetic field intensity of an arc area is larger within a defined magnetic field intensity range. However, the current in the existing direct current contactor is small and is not enough to reach a critical value, and meanwhile, the current in the direct current contactor is unstable, so that the phenomenon of damage often occurs, and the service life is shortened.
Therefore, how to provide a dc contactor with large current and long service life is a problem that needs to be solved urgently by those skilled in the art.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides a novel direct current contactor is normally opened to heavy current that electric current is big, long service life moreover.
In order to achieve the above object, the present invention provides the following technical solutions, which mainly include: the sealing cover is connected and fixed with the support through a countersunk head screw, and a static contact is arranged between the sealing cover and the support; a coil rack is arranged between the inner part of the lower support and the upper support, an enameled wire is wound on the coil rack, an upper push rod sleeve and a lower push rod sleeve are arranged in the coil rack, and a lower reset spring is arranged between the upper push rod sleeve and the lower push rod sleeve; an upper push rod fixing piece is fixed at the top of the upper push rod sleeve through a screw, a split pin is arranged at the center of the upper push rod fixing piece, and a fixed shaft sleeve, a flat pad, a convex positioning sleeve, a movable contact spring, a flat pad and an upper reset spring are sequentially arranged on the split pin from bottom to top; the convex positioning sleeve is fixed at the center of the movable contact spring, the upper reset spring is divided into an upper outer reset spring and an upper inner reset spring, and a flat gasket is arranged on the top of the upper reset spring.
Preferably, in the novel high-current normally-open direct-current contactor, one end of the reset spring is fixed in the limit groove of the upper push rod sleeve, the other end of the reset spring is fixed in the limit groove of the lower push rod sleeve, and a flat pad is arranged at the joint of the lower push rod sleeve.
Preferably, in the novel high-current normally-open dc contactor, a movable contact is arranged at the bottom of the movable contact piece, and a stationary contact is arranged at a position corresponding to the stationary contact.
Preferably, in the novel high-current normally-open direct-current contactor, the support is fixed on the upper bracket through a screw; one side of the support is provided with a nut connected with the support, and the other side of the support is of a stepped structure.
Preferably, in the novel high-current normally-open dc contactor, a bracket mounting hole is formed in the surface of the lower bracket.
Preferably, in the novel high-current normally-open direct-current contactor, an auxiliary switch is arranged on the upper bracket and is connected with the enameled wire through a connecting wire.
According to the technical scheme, compared with the prior art, the utility model discloses a novel large-current normally-open direct-current contactor, the utility model is provided with an auxiliary switch on an upper support, the auxiliary switch is connected with an enameled wire through a connecting wire, the auxiliary switch is connected with external current, the current is large, the current is stable, the internal part is stretched by adopting an upper reset spring and a lower reset spring, so that a movable contact piece is contacted with a static contact piece, the movable contact piece and the static contact piece are communicated, and then the contactor works; the utility model has the characteristics of rational in infrastructure, the electric current is big, the electric current is stable, long service life.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic side view of the present invention.
Fig. 3 is a schematic diagram of the back structure of the present invention.
Fig. 4 is a schematic top view of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Please refer to fig. 1-4, which illustrate a novel heavy current normally open dc contactor according to the present invention.
The utility model discloses, mainly include: the sealing cover comprises a sealing cover 1, an upper support 16 and a lower support 2, wherein the upper support 16 is arranged at the top of the lower support 2, a support 15 is arranged on the front surface of the upper support 16, the sealing cover 1 is fixedly connected with the support 15 through a countersunk head screw, and a static contact piece 8 is arranged between the sealing cover 1 and the support 15; a coil rack 3 is arranged between the inner part of the lower support 2 and the upper support 16, an enameled wire 4 is wound on the coil rack 3, an upper push rod sleeve 6 and a lower push rod sleeve 5 are arranged in the coil rack 3, and a lower reset spring 7 is arranged between the upper push rod sleeve 6 and the lower push rod sleeve 5; an upper push rod fixing piece 14 is fixed at the top of the upper push rod sleeve 6 through a screw, an opening pin 11 is arranged at the center of the upper push rod fixing piece 14, and a fixed shaft sleeve 13, a flat pad, a convex positioning sleeve 12, a movable contact spring 9, the flat pad and an upper reset spring 10 are sequentially arranged on the opening pin 11 from bottom to top; the convex positioning sleeve 12 is fixed at the center of the movable contact spring 9, the upper return spring 10 is divided into an upper outer return spring and an upper inner return spring, and a flat cushion is arranged on the top of the upper return spring 10.
In order to further optimize the technical scheme, one end of a return spring is fixed in a limiting groove of the upper push rod sleeve 6, the other end of the return spring is fixed in a limiting groove of the lower push rod sleeve 5, and a flat cushion is arranged at the joint of the lower push rod sleeve 5
In order to further optimize the technical scheme, the bottom of the movable contact piece 9 is provided with a movable contact, and a position corresponding to the fixed contact piece 8 is provided with a fixed contact.
In order to further optimize the above technical solution, the support 15 is fixed on the upper bracket 16 by screws; one side of the support 15 is provided with a nut connected with the support, and the other side of the support is of a stepped structure.
In order to further optimize the technical scheme, the surface of the lower bracket 2 is provided with a bracket mounting hole.
In order to further optimize the above technical solution, the upper bracket 16 is provided with an auxiliary switch 17 and connected with the enameled wire 4 through a connecting wire.
In order to further optimize above-mentioned technical scheme, the utility model discloses mainly by closing cap 1 (take the magnetism to blow out arc system), electric contact system, electromagnetic drive system and auxiliary switch 17 system and constitute, closing cap 1 has six magnets to accomplish magnetism and blows out the arc system, if can lift closing cap 1 off to the arc extinguishing does not have the requirement, reduces the product volume and does not influence the product and use, such combination is more nimble relatively. The electromagnetic driving system mainly comprises a coil, an upper bracket 16, a lower bracket 2, an upper push rod sleeve 6, a lower push rod sleeve 5, an upper push rod sleeve 6 fixing piece, a fixing shaft and the like, wherein the upper push rod sleeve 6 fixing piece and the 3 fixing shafts synchronously drive three movable contacts 9 in the electrical contact system, the electrical contact system mainly comprises two fixed contacts 8, three movable contacts 9, six fixed contacts, six movable contacts and a base, and the problem of high current is solved by a multi-contact parallel circuit. An auxiliary switch 17 of the auxiliary switch 17 system is fixed on the upper bracket 16, and the auxiliary switch 17 system is assembled by driving the synchronous action of the auxiliary switch 17 by the action of a fixing sheet of the upper push rod sleeve 6, at most two groups of auxiliary switches 17 can be carried, and the auxiliary switch 17 can be flexibly and randomly detached or installed.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (6)
1. The utility model provides a novel direct current contactor is normally opened to heavy current which characterized in that mainly includes: the sealing cover is connected and fixed with the support through a countersunk head screw, and a static contact is arranged between the sealing cover and the support; a coil rack is arranged between the inner part of the lower support and the upper support, an enameled wire is wound on the coil rack, an upper push rod sleeve and a lower push rod sleeve are arranged in the coil rack, and a lower reset spring is arranged between the upper push rod sleeve and the lower push rod sleeve; an upper push rod fixing piece is fixed at the top of the upper push rod sleeve through a screw, a split pin is arranged at the center of the upper push rod fixing piece, and a fixed shaft sleeve, a flat pad, a convex positioning sleeve, a movable contact spring, a flat pad and an upper reset spring are sequentially arranged on the split pin from bottom to top; the convex positioning sleeve is fixed at the center of the movable contact spring, the upper reset spring is divided into an upper outer reset spring and an upper inner reset spring, and a flat gasket is arranged on the top of the upper reset spring.
2. A novel large-current normally open direct-current contactor as claimed in claim 1, wherein one end of said return spring is fixed in the limiting groove of the upper push rod sleeve, the other end is fixed in the limiting groove of the lower push rod sleeve, and a flat pad is arranged at the joint of the lower push rod sleeve.
3. A novel large-current normally-open direct-current contactor as claimed in claim 1, wherein a moving contact is arranged at the bottom of the moving contact piece, and a static contact is arranged at a position corresponding to the static contact piece.
4. The novel large-current normally-open direct-current contactor as claimed in claim 1, wherein the support is fixed on the upper bracket through a screw; one side of the support is provided with a nut connected with the support, and the other side of the support is of a stepped structure.
5. The novel large-current normally-open direct-current contactor according to claim 1, wherein a bracket mounting hole is formed in the surface of the lower bracket.
6. A novel large-current normally-open direct-current contactor according to claim 5, wherein an auxiliary switch is arranged on the upper support and is connected with the enameled wire through a connecting wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022580859.8U CN213752554U (en) | 2020-11-10 | 2020-11-10 | Novel heavy current normally-open direct current contactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022580859.8U CN213752554U (en) | 2020-11-10 | 2020-11-10 | Novel heavy current normally-open direct current contactor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213752554U true CN213752554U (en) | 2021-07-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022580859.8U Active CN213752554U (en) | 2020-11-10 | 2020-11-10 | Novel heavy current normally-open direct current contactor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213752554U (en) |
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2020
- 2020-11-10 CN CN202022580859.8U patent/CN213752554U/en active Active
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