CN217426575U - Three-position isolating switch - Google Patents
Three-position isolating switch Download PDFInfo
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- CN217426575U CN217426575U CN202221210799.3U CN202221210799U CN217426575U CN 217426575 U CN217426575 U CN 217426575U CN 202221210799 U CN202221210799 U CN 202221210799U CN 217426575 U CN217426575 U CN 217426575U
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- isolating switch
- contact structure
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Abstract
The utility model relates to a three-position isolating switch, which adopts a switching driving device arranged on one side of an isolating switch support; a plurality of station contact devices are arranged on two sides of the isolating switch support; the switching driving device is connected with the movable contact device, and the movable contact device is driven by the switching driving device to switch the connection on-off state between the movable contact device and the plurality of station contact devices. The requirement that a group of grounding terminals are added on the isolating switch can be met, meanwhile, the output terminal contact structure and the input terminal contact structure are placed on the same horizontal plane, and the grounding terminal contact structure is arranged above the input terminal contact structure, so that the electrical gap between the grounding terminal contact structure and the output terminal contact structure is guaranteed. The wiring of the bus bar in the cabinet is convenient in the wiring mode, and the insulation space is effective.
Description
Technical Field
The embodiment of the utility model relates to an isolator, in particular to three station isolator.
Background
Conventional isolator usually constitutes for incoming line terminal and output terminal, in order to guarantee when using isolator, needs that can be safer need ground to isolator, consequently, the demand of increasing a set of ground terminal now more and more on isolator.
SUMMERY OF THE UTILITY MODEL
An embodiment of the utility model aims to provide a safer isolator, isolator that can ground connection.
In order to realize the above purpose, the utility model discloses an embodiment has designed a three station isolator, a serial communication port, include:
an isolating switch support;
the switching driving device is arranged on one side of the isolating switch support;
the station contact devices are arranged on two sides of the isolating switch support;
the movable contact device is driven by the switching driving device to switch the connection on-off state between the movable contact device and the station contact devices.
Furthermore, two station contact devices are arranged on one side of the isolating switch support; and the other side of the isolating switch support is provided with the station contact device.
Further, a bottom plate is fixed on the rear side of the isolating switch support through bolts; and an insulator is arranged between the bottom plate and the isolating switch support.
Furthermore, two sides of the bottom plate and two sides of the isolating switch support are respectively provided with a wire holder.
Further, the switching drive device further includes:
the motor speed reducer is fixed on one side of the isolating switch support;
the manual driving rod is fixed above the motor reducer;
the travel switch is fixed on the shell of the motor reducer on one side of the manual driving rod;
the crank is used for clamping and fixing one end of the crank on an output shaft of the motor reducer through a bolt;
the other end of the crank is connected with one end of the connecting rod through a pin shaft; the other end of the connecting rod is fixed in the middle of the movable contact device.
Further, station contact device still include:
the output terminal contact structure is fixed on one side of the isolating switch support;
an input terminal contact structure fixed to the other side of the isolator support on the side opposite to the output terminal contact structure;
a ground terminal contact structure secured to said isolator support above said input terminal contact structure;
the movable contact device drives the crank and the connecting rod through a motor reducer in the switching driving device, and switches between the output terminal contact structure and the input terminal contact structure to achieve connection and disconnection;
when one end of the movable contact device is connected with the output terminal contact structure or the input terminal contact structure, the other end of the movable contact device is connected with the grounding terminal contact structure.
Further, the structure of the output terminal contact is the same as the structure of the input terminal contact and the structure of the ground terminal contact.
Further, the output terminal contact structure, the input terminal contact structure and the ground terminal contact structure all still include:
a terminal board fixed to the disconnecting switch holder;
the fixed contact base plates are vertically fixed on the terminal board; a gap is arranged between the fixed contact substrates; the fixed contact substrate is fixed with the isolating switch support and the base through insulators.
Further, the movable contact device further includes:
the movable contact base plates are fixed at one end of the connecting rod through insulators; an insulating pad is arranged between the movable contact substrates for insulation;
the contacts are arranged at two ends of the movable contact base plate; the contact is switched on and off with a fixed contact substrate in the station contact device through the connecting rod.
Further, when the contact is connected with the fixed contact substrate in the output terminal contact structure of the station contact device or the contact is connected with the fixed contact substrate in the input terminal contact structure of the station contact device, the contact at the other end of the movable contact device is connected with the fixed contact substrate in the ground terminal contact structure.
Compared with the prior art, the utility model adopts the switching driving device arranged on one side of the isolating switch support; a plurality of station contact devices are arranged on two sides of the isolating switch support; the switching driving device is connected with the movable contact device, and the movable contact device is driven by the switching driving device to switch the connection on-off state between the movable contact device and the plurality of station contact devices. The requirement that a group of grounding terminals are added on the isolating switch can be met, meanwhile, the output terminal contact structure and the input terminal contact structure are placed on the same horizontal plane, and the grounding terminal contact structure is arranged above the input terminal contact structure, so that the electrical gap between the grounding terminal contact structure and the output terminal contact structure is guaranteed. The wiring of the bus bar in the cabinet is convenient in the wiring mode, and the insulation space is effective. No matter whether need ground terminal contact structure, all use same structure, the later stage that does not be equipped with ground terminal contact structure at first only need install the part additional and can upgrade, has reduced the cost and the speed that the complete machine was reformed transform greatly. In addition, the motor reducer and the output end are placed on the same side, the grounding terminal contact structure and the input terminal contact structure are placed on the same side, the proportion of the balance weight is coordinated as far as possible, and convenience is provided for installation operation.
Drawings
Fig. 1 is a schematic diagram of blasting with a three-dimensional structure according to the present invention;
fig. 2 is a left-side view structural diagram of the present invention;
FIG. 3 is a left-side view structural schematic diagram of the present invention with the bottom plate removed;
fig. 4 is a schematic left-view direction diagram of the switching driving device of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the following describes each embodiment of the present invention in detail with reference to the accompanying drawings. However, it will be appreciated by those of ordinary skill in the art that in various embodiments of the invention, numerous technical details are set forth in order to provide a better understanding of the present application. However, the technical solutions claimed in the claims of the present application can be implemented without these technical details and with various changes and modifications based on the following embodiments.
The utility model discloses an embodiment relates to a three-station isolator, as shown in fig. 1-4, include:
the isolating switch support 1 in the embodiment is used as a frame structure of the three-position isolating switch in the embodiment;
a switching driving device 10 is arranged on one side of the isolating switch support 1; the switching drive device 10 is used for driving the movable contact device 30;
a plurality of station contact devices 20 are arranged on two sides of the isolating switch support 1; the station contact device 20 is fixed on the isolating switch support 1 and is used for connecting an incoming line and an outgoing line;
the switching drive device 10 is connected with the movable contact device 30, and the movable contact device 30 is driven by the switching drive device 10 to switch the connection on-off state between the movable contact device 30 and the station contact devices 20. In the embodiment, the number of the station contact devices 20 of the three-station isolating switch is 3, wherein one input terminal contact structure 22 is used for connecting incoming wires, and one output terminal contact structure 21 is used for connecting outgoing wires; the other ground terminal contact structure 23 is used for grounding, thereby satisfying the requirement of adding a set of ground terminals on the isolating switch. The conventional isolating switch is generally composed of an incoming line terminal and an output terminal, and needs to be grounded to the isolating switch in order to guarantee the safety requirement when the isolating switch is used, so that the requirement of adding a group of grounding terminals on the isolating switch is met.
In the three-position disconnecting switch in the present embodiment, as shown in fig. 1 to 4, two position contact devices, that is, an output terminal contact structure 21 and an input terminal contact structure 22 at a wire inlet end, are arranged at one side of a disconnecting switch support 1; on the other side of the disconnector housing 1, a station contact arrangement, namely a ground terminal contact arrangement 23, is provided.
In the three-position disconnecting switch in the embodiment, as shown in fig. 1 to 4, a base plate 2 is fixed on the rear side of a disconnecting switch support 1 by bolts; an insulator 3 is arranged between the base plate 2 and the disconnector housing 1. The insulator 3 is used for isolating the bottom plate 2 from the switch support 1 and plays a role in isolation.
In the three-position disconnecting switch in the embodiment, as shown in fig. 1 to 4, one wire holder 4 is respectively arranged on two sides of the bottom plate 2 and the disconnecting switch support 1, and the wire holder 4 is used for connecting a control wire.
As shown in fig. 1 to 4, the switching driving device 10 of the three-position disconnecting switch in this embodiment further includes:
the motor reducer 11 is fixed on one side of the isolating switch support 1;
a manual driving rod 12 is fixed above the motor reducer 11;
a travel switch 13 is fixed on the shell of the motor reducer 11 at one side of the manual driving rod 12; only the manual driving rod 12 touches the travel switch 13 and enables the travel switch 13 to act, the motor reducer 11 can be manually driven at this time, the motor reducer 11 is not powered on to operate any more, only can be manually rotated, the safety during manual work is guaranteed, the switch is reset after the manual driving rod 12 is dismounted, the motor reducer 11 cannot be driven manually, and the motor reducer 11 is switched to an electric mode.
One end of a fixed crank 14 is clamped on an output shaft of the motor reducer 11 through a bolt;
the other end of the crank 14 is connected with one end of a connecting rod 15 through a pin shaft; the other end of the link 15 is fixed at the middle position of the movable contact device 30. The motor reducer 11 drives the movable contact device 30 to move by rotating the driving crank 14 and the connecting rod 15, and is used for switching the input terminal contact structure 22 and the output terminal contact structure 21.
As shown in fig. 1 to 4, the three-position disconnecting switch in this embodiment further includes:
an output terminal contact structure 21 is fixed on one side of the isolating switch support 1;
an input terminal contact structure 22 is fixed on the other side of the isolating switch support 1 on the opposite side of the output terminal contact structure 21; the output terminal contact structure 21 serves as a wiring device for the output terminal. The input terminal contact structure 22 serves as a wiring device for the input terminals.
Above the input terminal contact structure 22, a ground terminal contact structure 23 is fixed on the disconnector support 1; the ground terminal contact structure 23 is used to connect a grounded device.
The movable contact device 30 drives the crank 14 and the connecting rod 15 through the motor reducer 11 in the switching driving device 10, and switches between the output terminal contact structure 21 and the input terminal contact structure 22 to achieve connection and disconnection;
when one end of the movable contact means 30 is in contact with the output terminal contact structure 21 or the input terminal contact structure 22, at the same time, the other end of the movable contact means 30 is in contact with the ground terminal contact structure 23. The grounding of the isolating switch is achieved.
In this embodiment, the assembly of the ground terminal contact structure 23 is eliminated if no ground terminal is required, and the two-station structure with only the output terminal contact structure 21 and the input terminal contact structure 22 can be realized. If the two-station structure is subsequently transformed and upgraded into 3 stations, only the grounding terminal contact structure 23 needs to be installed, and the mechanical structure and the electrical wiring of the lower half part of the mechanism have no influence and can be directly used.
In the three-position disconnecting switch of the present embodiment, as shown in fig. 1 to 4, the output terminal contact structure 21, the input terminal contact structure 22, and the ground terminal contact structure 23 have the same structure.
As shown in fig. 1 to 4, the three-position disconnecting switch in this embodiment includes, as well as an output terminal contact structure 21, an input terminal contact structure 22, and a ground terminal contact structure 23:
a terminal board 24 is fixed on the isolating switch support 1; the terminal board 24 is used to fix the fixed contact base plate 25,
in the present embodiment, 2 fixed contact boards 25 are fixed upright on the terminal board 24; a gap is provided between the fixed contact substrates 25; the fixed contact base plate 25 is fixed to the disconnecting switch holder 1 and the base 2 via the insulator 3.
In the three-position disconnecting switch of this embodiment, as shown in fig. 1 to 4, the moving contact device 30 further includes:
the movable contact base plate 31 used in this embodiment is 2 pieces, and the movable contact base plate 31 is fixed at one end of the connecting rod 15 through the insulator 3; an insulating pad 32 is arranged between the movable contact base plates 31 for insulation;
a plurality of contacts 33 are arranged at two ends of the movable contact base plate 31; the contact 33 is switched on and off with the fixed contact substrate 25 in the station contact device 20 through the link 15. The contact 33 mainly functions to make or break with the fixed contact substrate 25.
In the three-position disconnecting switch of the present embodiment, as shown in fig. 1 to 4, when the contact 33 is connected to the fixed contact board 25 in the output terminal contact structure 21 of the station contact device 20 or the contact 33 is connected to the fixed contact board 25 in the input terminal contact structure 22 of the station contact device 20, the contact 33 at the other end of the movable contact device 30 is connected to the fixed contact board 25 in the ground terminal contact structure 23. Therefore, the three-position isolating switch in the embodiment is also in a grounding state in the switching process, and the safety is ensured.
It will be understood by those skilled in the art that the foregoing embodiments are specific examples of the invention, and that various changes in form and details may be made therein without departing from the spirit and scope of the invention in practice.
Claims (10)
1. A three-position isolating switch is characterized by comprising:
an isolating switch support;
the switching driving device is arranged on one side of the isolating switch support;
the station contact devices are arranged on two sides of the isolating switch support;
the movable contact device is driven by the switching driving device to switch the connection on-off state between the movable contact device and the station contact devices.
2. A three-position disconnector according to claim 1, characterized in that two of said position contact means are provided on one side of said disconnector support; and the other side of the isolating switch support is provided with the station contact device.
3. The three-position isolating switch as claimed in claim 1, wherein a bottom plate is fixed on the rear side of the isolating switch support by bolts; and an insulator is arranged between the bottom plate and the isolating switch support.
4. A three-position disconnector according to claim 3, characterized in that a wire holder is arranged on each side of the base plate and the disconnector support.
5. A three-position disconnecting switch according to claim 1, wherein said switching drive means further comprises:
the motor speed reducer is fixed on one side of the isolating switch support;
the manual driving rod is fixed above the motor reducer;
the travel switch is fixed on the shell of the motor reducer on one side of the manual driving rod;
the crank is used for clamping and fixing one end of the crank on an output shaft of the motor reducer through a bolt;
the other end of the crank is connected with one end of the connecting rod through a pin shaft; the other end of the connecting rod is fixed in the middle of the movable contact device.
6. A three-position disconnector according to claim 1, characterized in that said position contact means further comprises:
the output terminal contact structure is fixed on one side of the isolating switch support;
an input terminal contact structure fixed to the other side of the isolator support on the side opposite to the output terminal contact structure;
a ground terminal contact structure secured to said isolator support above said input terminal contact structure;
the movable contact device drives the crank and the connecting rod through a motor reducer in the switching driving device, and switches between the output terminal contact structure and the input terminal contact structure to achieve connection and disconnection;
when one end of the movable contact device is connected with the output terminal contact structure or the input terminal contact structure, the other end of the movable contact device is connected with the grounding terminal contact structure.
7. A three-position disconnector according to claim 6, characterized in that the configuration of the output terminal contacts and the configuration of the input terminal contacts and the configuration of the ground terminal contacts are identical.
8. The three-position isolator of claim 7, wherein said output and input terminal contact structures and said ground terminal contact structure each further comprise:
a terminal board to which the disconnecting switch holder is fixed;
the fixed contact substrates are vertically fixed on the terminal board; a gap is arranged between the fixed contact substrates; the fixed contact base plate is fixed with the isolating switch support and the base through insulators.
9. The three-position disconnecting switch according to claim 1, wherein the movable contact means further comprises:
the movable contact base plates are fixed at one end of the connecting rod through insulators; an insulating pad is arranged between the movable contact substrates for insulation;
the contacts are arranged at two ends of the movable contact base plate; the contact is switched on and off with a fixed contact substrate in the station contact device through the connecting rod.
10. A three-position disconnecting switch according to claim 9 wherein said contact is in contact with a fixed contact substrate of an output terminal contact structure of said position contact means or said contact is in contact with a fixed contact substrate of an input terminal contact structure of said position contact means, while the contact at the other end of said movable contact means is in contact with a fixed contact substrate of a ground terminal contact structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221210799.3U CN217426575U (en) | 2022-05-12 | 2022-05-12 | Three-position isolating switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221210799.3U CN217426575U (en) | 2022-05-12 | 2022-05-12 | Three-position isolating switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217426575U true CN217426575U (en) | 2022-09-13 |
Family
ID=83187849
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221210799.3U Active CN217426575U (en) | 2022-05-12 | 2022-05-12 | Three-position isolating switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217426575U (en) |
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2022
- 2022-05-12 CN CN202221210799.3U patent/CN217426575U/en active Active
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