CN212848170U - Switch current loop and direct current isolating switch - Google Patents
Switch current loop and direct current isolating switch Download PDFInfo
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- CN212848170U CN212848170U CN202021823617.0U CN202021823617U CN212848170U CN 212848170 U CN212848170 U CN 212848170U CN 202021823617 U CN202021823617 U CN 202021823617U CN 212848170 U CN212848170 U CN 212848170U
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Abstract
The utility model provides a switch current loop and a direct current isolating switch, which comprises a guide rod, a connecting piece, a connecting rod, a splint moving contact component, a revolute pair, an upper pressing plate and a lower pressing plate, wherein, the first end of the guide rod is connected with the output shaft of a power mechanism, and the second end of the guide rod is connected with the first end of the connecting piece; the connecting piece is used for connecting the guide rod and the connecting rod; the first end of the connecting rod is rotatably connected with the second end of the connecting piece, and the second end of the connecting rod is connected with at least one group of clamping plate moving contact component; the clamping plate moving contact assemblies are arranged between the upper pressing plate and the lower pressing plate and are connected with the upper pressing plate and the lower pressing plate through rotating shafts, and the upper pressing plate is connected with the lower pressing plate through a stand column; the first end of revolute pair is connected the top board, the second end linked switch of revolute pair closes the separating brake indicator pole, the utility model provides a switching current circuit can realize the stack of switching current circuit through the stack to splint movable contact subassembly according to actual different needs.
Description
Technical Field
The utility model relates to an electric power system power transmission and distribution equipment technical field especially relates to a switch current loop and direct current isolator.
Background
The direct-current isolating switch is important electrical equipment of a transformer substation, and is mainly used for ensuring the isolation between a repair part and a charged body in a circuit and switching the circuit or closing a no-load circuit by using the direct-current isolating switch.
Along with the fact that subways in China enter a high-speed development period, a large number of various high-voltage switch devices are needed for an urban rail transit traction power supply system, the urban subways and light rail lines are all in the voltage of 1500V direct current, the manual operation and the electric operation of an existing 1500V direct current isolating switch are not in modular design, the universality of an operating mechanism is low, a driving motor of the existing 1500V direct current isolating switch is an alternating current motor, 2 times of electric wiring is needed, and the operation is complex.
SUMMERY OF THE UTILITY MODEL
The utility model provides a switch current loop and direct current isolator, solved traditional direct current isolator's manual operation, electric operation and do not realize the modularized design, the current loop can't superpose, lead to operating device commonality not high; and the driving motor is an alternating current motor, and 2 times of electrical wiring is needed, so that the problem of complex operation is caused, the manual and electric operation of the direct current isolating switch realizes the modular design, the current loops can be superposed, the universality is improved, and the direct current motor is utilized for driving, so that the electrical wiring operation process is simplified.
In order to achieve the above object, the technical solution of the present invention is specifically realized as follows:
the utility model discloses a switch current loop on the one hand, including guide bar, connecting piece, connecting rod, splint movable contact subassembly and, revolute pair and upper and lower clamp plate, wherein, the output shaft of power unit is connected to the first end of guide bar, the first end of connecting piece is connected to the second end of guide bar; the connecting piece is used for connecting the guide rod and the connecting rod; the first end of the connecting rod is rotatably connected with the second end of the connecting piece, and the second end of the connecting rod is connected with at least one group of clamping plate moving contact components; the clamping plate moving contact assemblies are arranged between the upper pressing plate and the lower pressing plate, the clamping plate moving contact assemblies are connected with the upper pressing plate and the lower pressing plate through rotating shafts, and the upper pressing plate is connected with the lower pressing plate through a stand column; the first end of the revolute pair is connected with the upper pressure plate, and the second end of the revolute pair is connected with the switch switching-on and switching-off indicating rod.
Further, leaf springs are arranged on the upper pressure plate and the lower pressure plate.
Further, the upper pressing plate and the lower pressing plate are aluminum plates.
The utility model discloses another aspect discloses a direct current isolator, include as above a switch current loop.
Furthermore, the direct-current isolating switch also comprises a bottom plate, and the power mechanism and the switch switching-on/off indicating rod are fixedly arranged on the bottom plate.
Furthermore, the direct current isolating switch also comprises a program lock, and the program lock is fixedly installed on the bottom plate.
Furthermore, the direct current isolating switch further comprises post insulators, and the two post insulators are symmetrically arranged on two sides of the bottom plate.
Further, the power mechanism is a direct current driving motor.
Further, the power mechanism is a manual operation rocking handle.
The beneficial technical effects are as follows:
1. the utility model discloses a switch current loop, which comprises a guide rod, a connecting piece, a connecting rod, a splint movable contact assembly, a revolute pair, an upper pressing plate and a lower pressing plate, wherein the first end of the guide rod is connected with the output shaft of a power mechanism, and the second end of the guide rod is connected with the first end of the connecting piece; the connecting piece is used for connecting the guide rod and the connecting rod; the first end of the connecting rod is rotatably connected with the second end of the connecting piece, and the second end of the connecting rod is connected with at least one group of clamping plate moving contact components; the clamping plate moving contact assemblies are arranged between the upper pressing plate and the lower pressing plate, the clamping plate moving contact assemblies are connected with the upper pressing plate and the lower pressing plate through rotating shafts, and the upper pressing plate is connected with the lower pressing plate through a stand column; the first end of the rotating pair is connected with the upper pressing plate, and the second end of the rotating pair is connected with the switch brake-on and brake-off indicating rod, so that the switch current loop in the utility model can be superposed by superposing the movable contact components of the clamping plates according to different actual requirements;
2. in the utility model, the switch current loop comprises an upper pressing plate and a lower pressing plate, the upper pressing plate, the lower pressing plate and the splint moving contact component are connected through a rotating shaft, the upper pressing plate and the lower pressing plate are provided with a plate spring, and the plate spring can ensure the pressure of the splint moving contact and can reduce the temperature rise of the loop;
3. in the utility model, the guide rod is connected with the connecting rod through the connecting piece, and the connecting rod is connected with the movable contact of the clamping plate, thereby increasing the insulation distance;
4. the utility model discloses in, fixed mounting has the procedure lock on the bottom plate, can add various chain schemes, realizes the signal output of the various states of direct current isolator.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings used in the description of the embodiments will be briefly described below.
Fig. 1 is a front view of a connection structure of a switching current loop according to the present invention;
fig. 2 is a rear view of a connection structure of a switching current loop according to the present invention;
fig. 3 is a connection structure diagram of a switching current circuit without upper and lower pressing plates according to the present invention;
fig. 4 is an overall structure diagram of a dc isolation switch (electrically operated) according to the present invention;
fig. 5 is an overall structure diagram of a dc isolation switch (electrically operated) without a protective cover according to the present invention;
fig. 6 is an overall structure diagram of a dc isolation switch (manually operated) according to the present invention;
fig. 7 is an overall structure diagram of a dc isolation switch (manual operation) without a protective cover according to the present invention.
The device comprises a guide rod 1, a connecting piece 2, a connecting rod 3, a clamping plate movable contact assembly 4, a revolute pair 5, a switch on-off indicating rod 6, an upper pressing plate 7, a lower pressing plate 8, a rotating shaft 9, a plate spring 10, a bottom plate 11, a program lock 12, a direct current driving motor 13, a manual operation crank 14, a circuit board 15, an auxiliary switch 16, a speed reducing mechanism 17, a protective cover 18, a support insulator 19 and a stand column 20.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
The first embodiment is as follows:
the utility model discloses a switch current loop on one hand, see fig. 1-3, including guide bar 1, connecting piece 2, connecting rod 3, splint moving contact subassembly 4, revolute pair 5, top board 7 and holding down plate 8, wherein, the first end of guide bar 1 connects the output shaft of actuating unit, the second end of guide bar 1 connects the first end of connecting piece 2; the connecting piece 2 is used for connecting the guide rod 1 and the connecting rod 3; the first end of the connecting rod 3 is rotatably connected with the second end of the connecting piece 2, and the second end of the connecting rod 3 is connected with at least one group of splint moving contact assemblies 4; at least one group of splint moving contact assemblies 4 are arranged between an upper pressing plate 7 and a lower pressing plate 8, the splint moving contact assemblies 4 are connected with the upper pressing plate 7 and the lower pressing plate 8 through rotating shafts 9, the upper pressing plate 7 is connected with the lower pressing plate 8 through a stand column 20, the upper pressing plate 7 and the lower pressing plate 8 are preferably made of aluminum plates, preferably, leaf springs are fixedly arranged on the upper pressing plate 7 and the lower pressing plate 8, the leaf springs can guarantee the contact pressure of the splint moving contacts and can reduce the temperature rise of a loop; last clamp plate 7 is connected to revolute pair 5's first end, and revolute pair 5's second end linked switch closes separating brake indicator lever 6, the utility model provides a switching current circuit can realize the stack of switching current circuit through the stack to splint movable contact subassembly according to actual different needs, is applied to the occasion of different electric currents.
The utility model discloses another aspect discloses a direct current isolator, see fig. 4-5, direct current isolator includes as above a switch current loop, still include bottom plate 11, be provided with protection casing 18 on the bottom plate 11, protection casing 18 is inside to be provided with DC drive motor 13, circuit board 15, reduction gears 17 and auxiliary switch 16, and post insulator 19 is installed to the bilateral symmetry of bottom plate 11 lower surface, and post insulator 19 is kept apart through two red copper plates.
As an embodiment of the present invention, the DC driving motor 13 is preferably a DC24V driving motor, the output shaft of the DC driving motor 13 is connected to the input shaft of the speed reducing mechanism 17, the output shaft of the speed reducing mechanism 17 is connected to the guide rod 1, the guide rod 1 is connected to the connecting rod 3 through the connecting member 2, the connecting rod 3 is connected to the splint moving contact assembly 4, when the DC isolating switch needs to be switched on, the DC driving motor 13 rotates to drive the speed reducing mechanism 17 to drive the splint moving contact assembly 4 through the guide rod 1, the connecting member 2 and the connecting rod 3, so that the splint moving contact assembly 4 moves to overlap with the red copper plate portion disposed on the post insulator 19, the current flows into the splint moving contact assembly 4 from the incoming line end, and flows to the splint moving contact assembly 4 through the red copper plate (static contact), because the current directions of the two splint moving contacts are the same, according, and the static contact is communicated with the splint moving contact component 4 to realize closing.
When the direct-current isolating switch needs to be opened, the direct-current driving motor 13 rotates to drive the speed reduction mechanism 17 to further drive the splint moving contact assembly 4 through the guide rod 1, the connecting piece 2 and the connecting rod 3, so that the splint moving contact assembly 4 moves to be not overlapped with the red copper plate arranged on the post insulator 19, the splint moving contact assembly 4 is separated from the fixed contact, and the opening is realized.
As a preferred embodiment of the present invention, the bottom plate is further provided with a program lock 12, which can realize various interlocking schemes, and it can be understood that various auxiliary or alarm travel switches can be added to realize signal output of various states of the switch.
It will of course be appreciated that the electrically operated dc disconnector is also provided with manually operated means, which enable manual operation in the field even if the electrical operation fails.
Example two:
with the switch current circuit disclosed above, the dc isolation switch may also be a fully manually operated dc isolation switch, referring to fig. 6-7, the manual dc isolation switch includes a bottom plate 11 in addition to the switch current circuit, a protective cover 18 is disposed on the bottom plate 11, a manually operated rocking handle 14 and an auxiliary switch 16 are disposed inside the protective cover 18, post insulators 19 are symmetrically mounted on two sides of the lower surface of the bottom plate 11, and the post insulators 19 are isolated by two red copper plates.
As an embodiment of the utility model, guide bar 1 is connected to operation rocking handle 14, guide bar 1 passes through connecting piece 2 and connects connecting rod 3, connecting rod 3 connects splint moving contact subassembly 4, when direct current isolator needs the combined floodgate, operating personnel pulls manual operation rocking handle 14, manual operation rocking handle 14 passes through guide bar 1, connecting piece 2 and connecting rod 3 drive splint moving contact subassembly 4, make splint moving contact subassembly 4 move to with the red copper plate part that sets up on the post insulator 19 overlap, the electric current flows in from the inlet wire end, through red copper plate (static contact) flow direction splint moving contact subassembly 4, because the current direction of two splint moving contacts is the same, according to the principle that the syntropy electric current was inhaled mutually, two splint moving contact inter attraction press to the static contact, the static contact switches on with splint moving contact subassembly 4, realize the combined floodgate.
When the direct-current isolating switch needs to be opened, an operator pulls the manual operation rocking handle 14, the manual operation rocking handle 14 drives the clamping plate moving contact assembly 4 through the guide rod 1, the connecting piece 2 and the connecting rod 3, the clamping plate moving contact assembly 4 moves to a position which is not overlapped with a red copper plate arranged on the supporting insulator 19, and the clamping plate moving contact assembly 4 is separated from a fixed contact to realize opening.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above embodiments are only intended to describe the preferred embodiments of the present invention, but not to limit the scope of the present invention, and various modifications and improvements made by the technical solutions of the present invention by those skilled in the art should fall within the protection scope defined by the claims of the present invention without departing from the design spirit of the present invention.
Claims (9)
1. A switched current circuit, comprising:
the first end of the guide rod (1) is connected with an output shaft of the power mechanism, and the second end of the guide rod (1) is connected with the first end of the connecting piece (2);
the connecting piece (2) is used for connecting the guide rod (1) and the connecting rod (3) through the connecting piece (2);
the first end of the connecting rod (3) is rotatably connected with the second end of the connecting piece (2), and the second end of the connecting rod (3) is connected with at least one group of clamping plate movable contact component (4);
the clamp plate moving contact assembly (4), at least one group of clamp plate moving contact assemblies (4) is arranged between an upper pressing plate (7) and a lower pressing plate (8), the clamp plate moving contact assemblies (4) are connected with the upper pressing plate (7) and the lower pressing plate (8) through rotating shafts (9), and the upper pressing plate (7) is connected with the lower pressing plate (8) through a stand column (20);
the first end of the revolute pair (5) is connected with the upper pressure plate (7), and the second end of the revolute pair (5) is connected with the switch on-off indicating rod (6).
2. A switched current circuit according to claim 1, characterized in that leaf springs (10) are provided on the upper pressure plate (7) and the lower pressure plate (8).
3. A switched current circuit according to claim 2, characterized in that the upper pressure plate (7) and the lower pressure plate (8) are aluminium plates.
4. A dc disconnector comprising a switching current circuit as claimed in any one of claims 1 to 3.
5. The direct current isolating switch according to claim 4, further comprising a bottom plate (11), wherein the power mechanism and the switch opening and closing indication rod (6) are fixedly mounted on the bottom plate (11).
6. A DC disconnector according to claim 5, characterized in that it further comprises a program lock (12), said program lock (12) being fixedly mounted on said base plate (11).
7. A DC disconnector according to claim 6, characterized in that it further comprises post insulators (19), two of said post insulators (19) being symmetrically mounted on both sides of said base plate (11).
8. A DC disconnector according to claim 7, characterized in that the power unit is a DC drive motor (13).
9. A DC disconnector according to claim 7, characterized in that the power mechanism is a manually operated rocker (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021823617.0U CN212848170U (en) | 2020-08-27 | 2020-08-27 | Switch current loop and direct current isolating switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021823617.0U CN212848170U (en) | 2020-08-27 | 2020-08-27 | Switch current loop and direct current isolating switch |
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| Publication Number | Publication Date |
|---|---|
| CN212848170U true CN212848170U (en) | 2021-03-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021823617.0U Active CN212848170U (en) | 2020-08-27 | 2020-08-27 | Switch current loop and direct current isolating switch |
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| CN (1) | CN212848170U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4276868A3 (en) * | 2022-05-13 | 2024-03-06 | G Corner Electrical Systems Ltd. | A dc disconnector |
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2020
- 2020-08-27 CN CN202021823617.0U patent/CN212848170U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4276868A3 (en) * | 2022-05-13 | 2024-03-06 | G Corner Electrical Systems Ltd. | A dc disconnector |
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