CN113593966A - Translation multi-contact-finger isolating switch - Google Patents
Translation multi-contact-finger isolating switch Download PDFInfo
- Publication number
- CN113593966A CN113593966A CN202110796371.5A CN202110796371A CN113593966A CN 113593966 A CN113593966 A CN 113593966A CN 202110796371 A CN202110796371 A CN 202110796371A CN 113593966 A CN113593966 A CN 113593966A
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- Prior art keywords
- assembly
- contact
- gear
- plate
- trigger
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
- H01H31/26—Air-break switches for high tension without arc-extinguishing or arc-preventing means with movable contact that remains electrically connected to one line in open position of switch
- H01H31/32—Air-break switches for high tension without arc-extinguishing or arc-preventing means with movable contact that remains electrically connected to one line in open position of switch with rectilinearly-movable contact
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/50—Means for increasing contact pressure, preventing vibration of contacts, holding contacts together after engagement, or biasing contacts to the open position
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/32—Driving mechanisms, i.e. for transmitting driving force to the contacts
- H01H3/40—Driving mechanisms, i.e. for transmitting driving force to the contacts using friction, toothed, or screw-and-nut gearing
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
- H01H31/02—Details
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/02—Bases, casings, or covers
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- Push-Button Switches (AREA)
Abstract
The invention discloses a translational motion multi-contact-finger isolating switch, which comprises a base component, a motor component, a transmission component, a frame component and a main loop component, wherein the base component is connected with the motor component; the motor assembly is in key connection with the transmission assembly, and the motor assembly can control the main loop assembly to move through the transmission assembly; the main loop component comprises a wire inlet row, a wire outlet row and a moving contact component; the moving contact assembly comprises a top plate, a bottom plate and two side plates, a rectangular cavity is formed among the top plate, the bottom plate and the two side plates, a plurality of contact fingers and springs are arranged on the inner side of each side plate, and a plurality of spring contact finger groups are fixed on the side plates in parallel; the moving contact assembly is sleeved at the end part of the wire inlet bar, the wire outlet bar and the moving contact assembly are arranged on the same straight line, and the moving contact assembly can move between a closing position and a breaking position to enable the wire inlet bar and the wire outlet bar to be connected or disconnected.
Description
Technical Field
The invention relates to the technical field of switching devices, in particular to a translational motion multi-contact-finger isolating switch.
Background
In an electric power system, a main loop of an isolating switch mostly adopts a rotary knife switch type main loop structure, the structure is not compact due to insulation requirements, the requirements on the overall dimension and the working space are high, particularly, the defect is obvious when the high-voltage current level exists, the miniaturization and the light weight are the main development directions of the existing switching electric appliance and complete equipment thereof, so that the high-voltage current level is ensured, the overall dimension and the working space of the isolating switch are reduced, the short-time overload capacity is increased, and the difficulty is brought to the development work in the field.
Disclosure of Invention
In order to solve the technical problems, the invention aims to provide a translational motion multi-contact-finger isolating switch.
In order to achieve the purpose, the invention adopts the technical scheme that:
a translational motion multi-contact-finger isolating switch is characterized by comprising a base assembly, a motor assembly, a transmission assembly, a frame assembly and a main loop assembly;
the motor assembly is in key connection with the transmission assembly, and the motor assembly can control the main loop assembly to move through the transmission assembly;
the main loop component comprises a wire inlet row, a wire outlet row and a moving contact component;
the moving contact assembly comprises a top plate, a bottom plate and two side plates, a rectangular cavity is formed among the top plate, the bottom plate and the two side plates, a plurality of contact fingers and springs are arranged on the inner side of each side plate, and a plurality of spring contact finger groups are fixed on the side plates in parallel;
the movable contact assembly is sleeved at the end part of the wire outlet row, the wire inlet row, the wire outlet row and the movable contact assembly are arranged on the same straight line, and the movable contact assembly can move between a closing position and a breaking position to enable the wire inlet row and the wire outlet row to be connected or disconnected.
In some embodiments, the translational multi-finger isolator is a bipolar electrical isolator comprising two parallel-arranged primary circuit assemblies.
In some embodiments, the base assembly comprises a base, a rack guide, and a rack; the base is formed by welding four hollow section steels and is integrally H-shaped; the rack is placed in the groove-shaped rack guide rail, and the rack guide rail is fixed on the top surface of the base; the base component is used for providing support and an external interface for the translation multi-contact-finger isolating switch.
In some embodiments, the motor assembly includes a motor, a transfer switch, and a mounting plate; the motor is fixed on the mounting plate; the change-over switch is arranged at the tail shaft part of the motor and used for providing a hand operation change-over signal.
In some embodiments, the transmission assembly includes a main shaft, a left gear, and a right gear; the left gear and the right gear are both insulating parts; the left gear is provided with an annular shaft sleeve on the right side along the tooth thickness direction, and the right gear is provided with an annular shaft on the left side along the tooth thickness direction; the left gear and the right gear penetrate through two ends of the main shaft respectively, and shaft sleeves of the two gears are nested with each other to provide insulation protection for the main shaft; the bottom plate is provided with a rack, a left gear and a right gear are respectively meshed with the racks of the bottom plates in the two main loop assemblies, and the left gear is also meshed with the racks in the base assembly; the motor is used for driving the main shaft, the left gear and the right gear to integrally rotate.
In some embodiments, the frame assembly comprises a left side plate, a right side plate, an upper support plate, a lower support plate and a middle partition plate; the left side plate and the right side plate are parallel to each other and are respectively fixed on the left side surface and the right side surface of the base component; the motor assembly is fixed on the left side plate; the motor is matched with the main shaft to output torque; the transmission assembly, the upper supporting plate and the lower supporting plate are all fixed between the left side plate and the right side plate, and the upper supporting plate and the lower supporting plate are parallel to each other; the main loop assembly is integrally fixed between the upper supporting plate and the lower supporting plate; the middle partition plate is erected on the lower supporting plate and is parallel to the left side plate and the right side plate, and the middle partition plate is used for providing isolation between the two main loop components.
In some embodiments, the device further comprises an auxiliary circuit assembly, wherein the auxiliary circuit assembly comprises a trigger gear, a brake separating position travel switch group, a trigger plate assembly, a trigger shaft, an end cover and a brake closing position travel switch group; the trigger gear, the trigger sheet assembly and the end cover are fixed on the trigger shaft, the trigger shaft is integrally installed in the shaft hole of the left side plate, and the trigger shaft can rotate freely; the trigger gear is meshed with a rack on the base assembly; when the motor drives the left gear to rotate, the trigger gear, the trigger shaft and the trigger piece assembly are further driven to rotate through the rack, so that the switching of the opening position travel switch assembly and the closing position travel switch assembly is triggered, and opening and closing control and state signals of the switch are provided.
In some embodiments, the trigger piece assembly can be rotated to perform angle adjustment so as to adjust the triggering of the opening and closing position travel switch set.
Compared with the prior art, the invention has the advantages that: the translational multi-contact-finger isolating switch is used for the no-load switching of a direct current loop, and the moving contact component of the translational multi-contact-finger isolating switch is provided with two rows of multiple groups of contact finger plates which are symmetrically distributed, so that the contact reliability of the contacts is improved, the contact resistance of a main loop is reduced, and the switch has high and short-time overload capacity; the isolating switch adopts gear and rack transmission, has the characteristics of compact structure and reliable transmission, the main loop is arranged laterally, and the auxiliary loop and the main loop share the transmission gear, so that the overall dimension and the working space of the switch are reduced; in addition, the reasonable arrangement of the frame assembly enables the switch to have good insulation under high voltage and current conditions.
Drawings
Other objects and advantages of the present invention will become apparent from the following description of the invention which refers to the accompanying drawings, and may assist in a comprehensive understanding of the invention.
Fig. 1 is a schematic structural diagram of a translational multi-contact-finger isolating switch provided by the invention;
FIG. 2 is a schematic diagram of the main circuit assembly of FIG. 1;
fig. 3 is a schematic structural diagram of the base assembly, the transmission assembly and the auxiliary circuit assembly in fig. 1.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the invention without any inventive step, are within the scope of protection of the invention.
Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs.
Referring to fig. 1, 2 and 3, the invention provides a translational motion multi-contact-finger isolating switch, which comprises a base assembly 1, a motor assembly 2, a transmission assembly 3, a frame assembly 4 and a main loop assembly 5; the motor component 2 is in key connection with the transmission component 3, and the motor component 2 can control the main loop component 5 to move through the transmission component 3; the main circuit component comprises a wire inlet row 52, a wire outlet row 51 and a movable contact component 53; the moving contact assembly 53 comprises a top plate 531, a bottom plate 532 and two side plates 535, a rectangular cavity is formed among the top plate 531, the bottom plate 532 and the two side plates 535, a plurality of contact fingers 533 and springs 534 are arranged on the inner side of each side plate 535, and a plurality of spring contact finger groups are fixed on the side plates 535 in parallel; the moving contact assembly 53 is sleeved at the end part of the outgoing line bar 51, the incoming line bar 52, the outgoing line bar 51 and the moving contact assembly 53 are arranged on the same straight line, and the moving contact assembly 53 can move between a closing position and an opening position, so that the incoming line bar 52 and the outgoing line bar 51 are connected or disconnected.
The contact structure of the isolating switch provided by the invention adopts a multi-contact-finger double-side clamping mode, so that the contact surface of the contact is increased, the contact resistance is reduced, the contact reliability of the contact is increased, and the short-time overload capacity is improved; and the moving contact moves in a translation mode, so that the requirement of the switch on the working space is reduced.
Further, the translation multi-contact-finger isolating switch is a bipolar electric isolating switch and comprises two main loop assemblies 5 which are arranged in parallel.
Preferably, referring to fig. 3, the base assembly 1 includes a base 11, a rack guide 12, and a rack 13; the base 11 is formed by welding four hollow section steels and is integrally H-shaped; the rack 13 is placed in a groove-shaped rack guide rail 12, and the rack guide rail 12 is fixed on the top surface of the base; the base component is used for providing support and an external interface for the translation multi-contact-finger isolating switch.
Preferably, the motor assembly 2 includes a motor 21, a switch 22 and a mounting plate 23; the motor 21 is fixed on the mounting plate 23; the switch 22 is installed at the tail shaft of the motor 21 for providing a hand operation switching signal.
Preferably, the transmission assembly 3 comprises a main shaft 31, a left gear 32 and a right gear 33; the left gear 32 and the right gear 33 are both insulating members; the left gear 32 is provided with an annular shaft sleeve on the right side along the tooth thickness direction, and the right gear 33 is provided with an annular shaft on the left side along the tooth thickness direction; the left gear 32 and the right gear 33 respectively penetrate from two ends of the main shaft 31, and shaft sleeves of the two gears are nested with each other to provide insulation protection for the main shaft 31; a rack is arranged on the bottom plate 532, the left gear 32 and the right gear 33 are respectively meshed with the bottom plates 532 in the two main loop assemblies 5, and the left gear 32 is also meshed with the rack 13 in the base assembly 1; the motor 21 is used for driving the main shaft 31, the left gear 32 and the right gear 33 to integrally rotate.
Preferably, the frame assembly 4 includes a left side plate 41, a right side plate 42, an upper stay plate 43, a lower stay plate 44, and a middle spacer plate 45; the left side plate 41 and the right side plate 42 are parallel to each other and are respectively fixed on the left side surface and the right side surface of the base 11; the motor component 2 is fixed on the left side plate 41; the motor 21 is engaged with the main shaft 31 to output torque; the transmission assembly 3, the upper supporting plate 43 and the lower supporting plate 44 are all fixed between the left side plate 41 and the right side plate 42; the upper supporting plate 43 and the lower supporting plate 44 are parallel to each other, and the main circuit component 5 is integrally fixed between the upper supporting plate 43 and the lower supporting plate 44; intermediate partitions 45 are mounted on the lower support plate 44 in parallel with the left and right side plates for providing isolation between the two main circuit assemblies 5.
Preferably, the auxiliary circuit assembly 6 is further included, and the auxiliary circuit assembly 6 includes a trigger gear 61, an opening position travel switch group 62, a trigger plate assembly 63, a trigger shaft 64, an end cover 65 and a closing position travel switch group 66; the trigger gear 61, the trigger sheet assembly 63 and the end cover 65 are fixed on a trigger shaft 64, the trigger shaft 64 is integrally installed in a shaft hole of the left side plate 41, and the trigger shaft 64 can freely rotate; the trigger gear 61 is meshed with the rack; when the motor 21 drives the left gear 32 to rotate, the rack 13 further drives the trigger gear 61, the trigger shaft 64 and the trigger plate assembly 63 to rotate, so that the opening position travel switch assembly 62 and the closing position travel switch assembly 66 are triggered to switch, and switch opening and closing control and state signals are provided.
Preferably, the trigger plate assembly 63 can be angularly adjusted by rotation to adjust the trigger positions of the opening and closing position travel switch sets 62 and 66, thereby improving the flexibility of assembling the auxiliary circuit assembly 6 and reducing the requirement for dimensional control.
According to the translational multi-contact-finger isolating switch provided by the invention, when the switch is switched on, the motor 21 drives the left gear 32 and the right gear 33 which are arranged on the main shaft 31 to rotate, the rotating motion is converted into the parallel motion of the movable contact component 53 through the bottom plate 532 with the rack until the rectangular cavity of the movable contact component 53 wraps the end part of the incoming line row 52, contacts at two ends of the contact finger 533 are respectively lapped at the end parts of the incoming line row and the outgoing line row at the moment, and the contact finger 533 is pressed tightly by the spring 534 to provide contact pressure; in the movement process, the top plate 531 on the moving contact component 53 can be used as a sliding block and slides in the groove between the left side plate 41 and the right side plate 42 and on the top of the middle partition plate 45, so that the stability of the movement 53 of the moving contact component is ensured; the opening action of the switch can be realized by the reverse rotation of the motor 21; the switch-on and switch-off of the switch are realized by translating the moving contact component 53, and the requirement of the switch action on the space can be effectively reduced.
In conclusion, the translational multi-contact-finger isolating switch is used for the no-load switching of a direct current loop, and the moving contact component is provided with two rows of multiple groups of contact finger plates which are symmetrically distributed, so that the contact reliability of the contacts is improved, the contact resistance of a main loop is reduced, and the switch has high short-time overload capacity; the isolating switch adopts gear and rack transmission, has the characteristics of compact structure and reliable transmission, the main loop is arranged laterally, and the auxiliary loop and the main loop share the transmission gear, so that the overall dimension and the working space of the switch are reduced; in addition, the reasonable arrangement of the frame assembly enables the switch to have good insulation under high voltage and current conditions.
The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are only exemplary embodiments of the present invention and are not intended to limit the present invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. A translational motion multi-contact-finger isolating switch is characterized by comprising a base assembly, a motor assembly, a transmission assembly, a frame assembly and a main loop assembly;
the motor assembly is in key connection with the transmission assembly, and the motor assembly can control the main loop assembly to move through the transmission assembly;
the main loop component comprises a wire inlet row, a wire outlet row and a moving contact component;
the moving contact assembly comprises a top plate, a bottom plate and two side plates, a rectangular cavity is formed among the top plate, the bottom plate and the two side plates, a plurality of contact fingers and springs are arranged on the inner side of each side plate, and a plurality of spring contact finger groups are fixed on the side plates in parallel;
the movable contact assembly is sleeved at the end part of the wire outlet row, the wire inlet row, the wire outlet row and the movable contact assembly are arranged on the same straight line, and the movable contact assembly can move between a closing position and a breaking position to enable the wire inlet row and the wire outlet row to be connected or disconnected.
2. The translational motion multi-contact-finger isolation switch according to claim 1, wherein the translational motion multi-contact-finger isolation switch is a bipolar electric isolation switch and comprises two main loop assemblies arranged in parallel.
3. The translational motion multi-fingered isolator of claim 2, wherein the base assembly comprises a base, a rack guide and a rack; the base is formed by welding four hollow section steels and is integrally H-shaped; the rack is placed in the groove-shaped rack guide rail, and the rack guide rail is fixed on the top surface of the base; the base component is used for providing support and an external interface for the translation multi-contact-finger isolating switch.
4. The translational motion multi-contact-finger isolation switch according to claim 3, wherein the motor assembly comprises a motor, a transfer switch and a mounting plate; the motor is fixed on the mounting plate; the change-over switch is arranged at the tail shaft part of the motor and used for providing a hand operation change-over signal.
5. The translational motion multi-fingered isolating switch as recited in claims 1 and 4, wherein the transmission assembly comprises a main shaft, a left gear and a right gear; the left gear and the right gear are both insulating parts; the left gear is provided with an annular shaft sleeve on the right side along the tooth thickness direction, and the right gear is provided with an annular shaft on the left side along the tooth thickness direction; the left gear and the right gear penetrate through two ends of the main shaft respectively, and shaft sleeves of the two gears are nested with each other to provide insulation protection for the main shaft; the bottom plate is provided with a rack, a left gear and a right gear are respectively meshed with the racks of the bottom plates in the two main loop assemblies, and the left gear is also meshed with the racks in the base assembly; the motor is used for driving the main shaft, the left gear and the right gear to integrally rotate.
6. The translational motion multi-contact-finger isolation switch according to claim 5, wherein the frame assembly comprises a left side plate, a right side plate, an upper supporting plate, a lower supporting plate and a middle partition plate; the left side plate and the right side plate are parallel to each other and are respectively fixed on the left side surface and the right side surface of the base; the motor assembly is fixed on the left side plate; the motor is matched with the main shaft to output torque; the transmission assembly, the upper supporting plate and the lower supporting plate are all fixed between the left side plate and the right side plate, and the upper supporting plate and the lower supporting plate are parallel to each other; the main loop assembly is integrally fixed between the upper supporting plate and the lower supporting plate; the middle spacer frame is arranged on the lower supporting plate and is parallel to the left and right side plates for providing isolation between the two main loop components.
7. The translational motion multi-contact-finger isolating switch according to claims 3 and 6, further comprising an auxiliary circuit assembly, wherein the auxiliary circuit assembly comprises a trigger gear, a brake opening position travel switch group, a trigger shaft, a trigger plate assembly, an end cover and a brake closing position travel switch group; the trigger gear, the trigger sheet assembly and the end cover are fixed on the trigger shaft, the trigger shaft is integrally installed in the shaft hole of the left side plate, and the trigger shaft can rotate freely; a trigger gear on the trigger shaft is meshed with a rack on the base assembly; when the motor drives the left gear to rotate, the trigger gear, the trigger shaft and the trigger piece assembly are further driven to rotate through the rack, so that the switching of the opening position travel switch assembly and the closing position travel switch assembly is triggered, and opening and closing control and state signals of the switch are provided.
8. The translational motion multi-contact-finger isolating switch according to claim 7, wherein the trigger piece assembly can be angularly adjusted by rotation to adjust the trigger positions of the opening and closing position travel switch sets.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110796371.5A CN113593966A (en) | 2021-07-14 | 2021-07-14 | Translation multi-contact-finger isolating switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110796371.5A CN113593966A (en) | 2021-07-14 | 2021-07-14 | Translation multi-contact-finger isolating switch |
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| Publication Number | Publication Date |
|---|---|
| CN113593966A true CN113593966A (en) | 2021-11-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110796371.5A Pending CN113593966A (en) | 2021-07-14 | 2021-07-14 | Translation multi-contact-finger isolating switch |
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| CN (1) | CN113593966A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116921867A (en) * | 2023-09-15 | 2023-10-24 | 深圳市悦和精密模具有限公司 | Injection mold welding device |
-
2021
- 2021-07-14 CN CN202110796371.5A patent/CN113593966A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116921867A (en) * | 2023-09-15 | 2023-10-24 | 深圳市悦和精密模具有限公司 | Injection mold welding device |
| CN116921867B (en) * | 2023-09-15 | 2023-12-05 | 深圳市悦和精密模具有限公司 | Injection mold welding device |
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