CN114360957B - High-voltage isolating switch - Google Patents
High-voltage isolating switch Download PDFInfo
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- CN114360957B CN114360957B CN202111611976.9A CN202111611976A CN114360957B CN 114360957 B CN114360957 B CN 114360957B CN 202111611976 A CN202111611976 A CN 202111611976A CN 114360957 B CN114360957 B CN 114360957B
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- 230000005540 biological transmission Effects 0.000 abstract description 14
- 238000013461 design Methods 0.000 abstract description 12
- 239000012212 insulator Substances 0.000 description 8
- 238000009413 insulation Methods 0.000 description 5
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- 230000009286 beneficial effect Effects 0.000 description 3
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- 238000003466 welding Methods 0.000 description 2
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Abstract
The invention discloses a high-voltage isolating switch, which comprises a low-voltage control board 1, an insulating guide rod 2 and a high-voltage conducting box 3; the low-pressure control board 1 comprises a base 4, a rotary cylinder 5, a cam 6, a micro switch 7 and an electromagnetic valve 8; the high-voltage conducting box 3 comprises an insulating frame 9, a disconnecting link rotating shaft 10, a left disconnecting link 11, a left elastic piece 12, a left conducting seat 13, a left flexible connecting wire 14, a right disconnecting link 15, a right elastic piece 16, a right conducting seat 17 and a right flexible connecting wire 18; the rotary shaft of the rotary cylinder 5 is coaxially arranged and connected with the knife switch rotary shaft 10 through an insulating guide rod 2. The device adopts a modularized design, is divided into two independent units, namely a low-voltage control board and a high-voltage conducting box, and is connected through an insulating guide rod, so that the size of a part can be effectively reduced under the condition that the insulating performance and the reliability are not reduced, and the aim of miniaturization is fulfilled; the transmission mode of the integrated axis realizes the synchronization of the actions of the low-voltage control unit and the high-voltage conductive unit and the high efficiency of transmission. The novel high-voltage isolating switch is modularized and miniaturized, and has simple and compact overall structure and high reliability.
Description
Technical Field
The present invention relates to a device for a rail vehicle, in particular a high-voltage disconnector.
Background
At present, the mode of integrating high-voltage components in a high-voltage box of a high-speed motor train unit has become the trend of development of a train high-voltage system, the integrated design requires miniaturization and modularization design of the high-voltage components, the integrated high-voltage box design provides a certain clean environment, the performance of the high-voltage components is favorably maintained, the overhaul and maintenance period is prolonged, and the space of a vehicle is greatly utilized. The high-voltage isolating switch is an important switching device and protecting equipment on locomotives and motor trains as one of integrated components, and is mainly used for isolating a high-voltage unit with faults and maintaining the normal operation of the trains.
The traditional high-voltage isolating switch installed in the high-voltage box is characterized by being of a single fracture type, the electromagnetic valve is electrically opened by means of transmission of the linear cylinder and electric control, high-pressure air enters the linear cylinder through the valve to push the piston to move, the four-bar mechanism is driven to act, and then the moving contact and the fixed contact are pushed to be closed and opened. The main component structure of the traditional high-voltage isolating switch comprises a double-support insulator, an electromagnetic valve, a linear cylinder, a welding bottom plate, a pull rod insulator, a moving contact, a fixed contact, a cam, a micro switch, a rotating shaft, a rotating arm and the like. The double-support insulator is arranged on the welding bottom plate, the moving contact and the fixed contact are arranged on the insulator, the electromagnetic valve, the linear cylinder, the rotating shaft, the rotating arm and the pull rod insulator form a transmission system, the linear motion of the cylinder is converted into the rotary motion of the moving contact, and the opening and the closing of the main loop are realized. The high-voltage isolating switch signal feedback mechanism mainly comprises a cam, a micro switch and other parts and is used for feeding back the opening and closing states of a main loop of the high-voltage isolating switch.
The disadvantages of the above prior art are:
the whole structure is simple and complex, and the synchronization, reliability and high efficiency of transmission of the low voltage control unit and the high voltage conductive unit are poor.
In view of this, the present invention has been made.
Disclosure of Invention
The invention aims to provide a high-voltage isolating switch so as to solve the technical problems in the prior art.
The invention aims at realizing the following technical scheme:
the high-voltage isolating switch comprises a low-voltage control board 1, an insulating guide rod 2 and a high-voltage conducting box 3;
the low-pressure control board 1 comprises a base 4, a rotary cylinder 5, a cam 6, a micro switch 7 and an electromagnetic valve 8;
the high-voltage conductive box 3 comprises an insulating frame 9, a disconnecting link rotating shaft 10, a left disconnecting link 11, a left elastic piece 12, a left conductive seat 13, a left flexible connecting wire 14, a right disconnecting link 15, a right elastic piece 16, a right conductive seat 17 and a right flexible connecting wire 18;
the rotary shaft of the rotary cylinder 5 is coaxially arranged and connected with the knife switch rotary shaft 10 through an insulating guide rod 2.
Compared with the prior art, the high-voltage isolating switch provided by the invention adopts a modularized design, is divided into two independent units, namely the low-voltage control board and the high-voltage conducting box, and is connected with each other through the insulating guide rod, so that the rotating action of the low-voltage control unit is transmitted to the high-voltage unit to drive the high-voltage unit to rotate, and the closing and opening of a main loop are realized. The high-voltage conducting box uses a relatively closed insulating frame structure, two independent insulating cavities are designed, double-support insulators are omitted, single isolation fracture is optimized into double isolation fracture, double insulation isolation is formed, the same isolation distance is reserved, the space size is greatly reduced, meanwhile, the insulating frame can ensure the insulation isolation between the high-voltage conductor and the outside to the greatest extent, the size of a part can be effectively reduced under the condition that the insulating performance and the reliability are not reduced, and the aim of miniaturization is achieved. The transmission mode of the integrated axis realizes the synchronization of the actions of the low-voltage control unit and the high-voltage conductive unit and the high efficiency of transmission. The novel high-voltage isolating switch is modularized and miniaturized, and has simple and compact overall structure and high reliability.
Drawings
FIG. 1 is a top view (cut-out section) of a novel high voltage isolator in an embodiment of the present invention;
FIG. 2 is a bottom view (cut-away view) of the novel high voltage isolator in an embodiment of the present invention;
FIG. 3 is a front view (closed state cross-sectional view) of the novel high voltage isolator in an embodiment of the present invention;
in the figure:
the high-voltage switch comprises a low-voltage control board 1, an insulating guide rod 2, a high-voltage conducting box 3, a base 4, a rotary cylinder 5, a cam 6, a micro switch 7, an electromagnetic valve 8, an insulating frame 9, a switch rotary shaft 10, a left switch 11, a left spring plate 12, a left conducting seat 13, a left flexible wire 14, a right switch 15, a right spring plate 16, a right conducting seat 17 and a right flexible wire 18.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention; it will be apparent that the described embodiments are only some embodiments of the invention, but not all embodiments, which do not constitute limitations of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to fall within the scope of the invention.
The terms that may be used herein will first be described as follows:
the term "and/or" is intended to mean that either or both may be implemented, e.g., X and/or Y are intended to include both the cases of "X" or "Y" and the cases of "X and Y".
The terms "comprises," "comprising," "includes," "including," "has," "having" or other similar referents are to be construed to cover a non-exclusive inclusion. For example: including a particular feature (e.g., a starting material, component, ingredient, carrier, formulation, material, dimension, part, means, mechanism, apparatus, step, procedure, method, reaction condition, processing condition, parameter, algorithm, signal, data, product or article of manufacture, etc.), should be construed as including not only a particular feature but also other features known in the art that are not explicitly recited.
The term "consisting of … …" is meant to exclude any technical feature element not explicitly listed. If such term is used in a claim, the term will cause the claim to be closed, such that it does not include technical features other than those specifically listed, except for conventional impurities associated therewith. If the term is intended to appear in only a clause of a claim, it is intended to limit only the elements explicitly recited in that clause, and the elements recited in other clauses are not excluded from the overall claim.
Unless specifically stated or limited otherwise, the terms "mounted," "connected," "secured," and the like should be construed broadly to include, for example: the connecting device can be fixedly connected, detachably connected or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the terms herein above will be understood by those of ordinary skill in the art as the case may be.
The terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," etc. refer to an orientation or positional relationship based on that shown in the drawings, merely for ease of description and to simplify the description, and do not explicitly or implicitly indicate that the apparatus or element in question must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present disclosure.
What is not described in detail in the embodiments of the present invention belongs to the prior art known to those skilled in the art. The specific conditions are not noted in the examples of the present invention and are carried out according to the conditions conventional in the art or suggested by the manufacturer. The reagents or apparatus used in the examples of the present invention were conventional products commercially available without the manufacturer's knowledge.
The high-voltage isolating switch comprises a low-voltage control board 1, an insulating guide rod 2 and a high-voltage conducting box 3;
the low-pressure control board 1 comprises a base 4, a rotary cylinder 5, a cam 6, a micro switch 7 and an electromagnetic valve 8;
the high-voltage conductive box 3 comprises an insulating frame 9, a disconnecting link rotating shaft 10, a left disconnecting link 11, a left elastic piece 12, a left conductive seat 13, a left flexible connecting wire 14, a right disconnecting link 15, a right elastic piece 16, a right conductive seat 17 and a right flexible connecting wire 18;
the rotary shaft of the rotary cylinder 5 is coaxially arranged and connected with the knife switch rotary shaft 10 through an insulating guide rod 2.
The base 4 is made of steel, the rotary air cylinder 5 and the electromagnetic valve 8 are arranged on the base 4, an air source conducted by the base 4 is connected with an air path of the rotary air cylinder 5 through the electromagnetic valve 8, and the electromagnetic valve 8 is connected with a control electric signal.
The cam 6 is arranged on the rotating shaft of the rotary cylinder 5, the micro-switches 7 are arranged on two sides of the cam 6 and are fixed on the rotary cylinder 5 at the same time, the rotary cylinder 5 rotates to drive the cam 6 to rotate, the micro-switches 7 are compressed, and the micro-switches output control electric signals for closing or opening through wires.
The insulating frame 9 is divided into a left chamber and a right chamber which are mutually independent, the whole insulating frame is made of insulating materials, the disconnecting link rotating shaft 10 is arranged on the insulating frame 9, and the left chamber and the right chamber are communicated; the left disconnecting link 11 and the right disconnecting link 15 are both arranged on the disconnecting link rotating shaft 10 and are respectively arranged in the left cavity and the right cavity; the left conductive seat 13 and the right conductive seat 17 are arranged on the insulating frame 9 and are respectively arranged in the left cavity and the right cavity; the left spring plate 12 and the left flexible connecting wire 14 are arranged on the left conductive seat 13 to form left high-voltage conductive connection, and the right spring plate 16 and the right flexible connecting wire 18 are arranged on the right conductive seat 17 to form right high-voltage conductive connection.
The specific action mode of the disconnecting state of the isolating fracture of the high-voltage isolating switch is as follows:
when the vehicle sends out a high-voltage isolating switch disconnection signal, one end of the electromagnetic valve 8 is electrified, the valve is opened, a vehicle air source enters the rotary cylinder 5 through the electromagnetic valve 8, the rotary cylinder shaft is pushed to rotate positively to drive the insulating guide rod 2 to rotate, meanwhile, the disconnecting link rotary shaft 10 rotates synchronously, the left disconnecting link 11 and the right disconnecting link 15 rotate along the disconnecting link rotary shaft 10 and are disconnected with the left elastic piece 12 and the right elastic piece 16 respectively to form a double isolating breakpoint, and the left soft connecting line 14 connected with the high-voltage input end and the right soft connecting line 18 connected with the high-voltage output end are disconnected, so that the high-voltage main circuit is disconnected;
the specific action mode of the high-voltage isolating switch isolating fracture closing state is as follows:
when the vehicle sends out a high-voltage isolating switch closing signal, the other end of the electromagnetic valve 8 is electrified, the valve is opened, a vehicle air source enters the rotary cylinder 5 through the electromagnetic valve 8, the rotary cylinder shaft is pushed to reversely rotate, the insulating guide rod 2 is driven to rotate, meanwhile, the disconnecting link rotary shaft 10 synchronously rotates, the left disconnecting link 11 and the right disconnecting link 15 rotate along the disconnecting link rotary shaft 10 and respectively contact with the left elastic piece 12 and the right elastic piece 16 to form bilateral contact, and a left soft connecting line 14 connected with a high-voltage input end and a right soft connecting line 18 connected with a high-voltage output end are connected, so that a high-voltage main loop is closed.
In summary, the novel high-voltage isolating switch of the embodiment of the invention divides the low-voltage control unit and the high-voltage conductive unit into two independent parts, the two independent parts are connected through the insulating guide rod, the rotating action of the low-voltage control unit is transmitted to the high-voltage unit to drive the high-voltage unit to rotate, so that the closing and opening of a main loop are realized, the high-voltage unit uses an insulating frame structure, the insulating isolation between the high-voltage conductor and the outside is ensured to the greatest extent, the volume of the part can be effectively reduced under the condition that the insulating performance and the reliability are not reduced, and the aim of miniaturization is achieved. The novel high-voltage isolating switch breaks the traditional high-voltage isolating switch supporting insulator completely, the supporting insulator is eliminated, the single isolating fracture is optimized into the double isolating fracture, the input end and the output end are disconnected simultaneously, double insulating isolation is formed, the same isolating distance is formed, and the space size is greatly reduced. The novel high-voltage isolating switch structure comprises a low-voltage control board, an insulating guide rod and a high-voltage conducting box, wherein the low-voltage control board comprises a base, a rotary cylinder, an electromagnetic valve, a micro switch and a cam, and the high-voltage conducting box comprises an insulating frame, a disconnecting link rotating shaft, a disconnecting link, an elastic sheet, a conducting seat and a flexible connecting wire;
the invention mainly designs a control matching mode of the low-voltage control board, and adopts an integrated structure, thereby being beneficial to installation, disassembly and overhaul. The high-voltage conducting box is designed by introducing a high-voltage composite insulation concept, the input end and the output end belong to different insulation chambers, and the conductive rotating shaft is designed in the middle, so that the connection and disconnection of the input end and the output end are realized, the extremely reduced volume under the function of isolating a fault circuit is met, and the insulation safety reliability and the compactness of the structure are enhanced. The transmission mode of an integral axis is designed, the four-bar transmission mechanism of the traditional isolating switch is simplified, and the synchronization of the actions of the low-voltage control unit and the high-voltage conductive unit and the high-efficiency of transmission are realized. The novel high-voltage isolating switch has the advantages of simple and compact assembly structure, obvious miniaturization trend, easy realization and high reliability of an operating mechanism.
In order to more clearly demonstrate the technical scheme and the technical effects provided by the invention, the following detailed description of the embodiments of the invention is given by way of specific examples.
Example 1
The high-voltage isolating switch (as shown in figure 1) comprises a main body, a low-voltage control board 1, an insulating guide rod 2 and a high-voltage conducting box 3. The low-voltage control board 1 comprises a base 4, a rotary cylinder 5, a cam 6, a micro switch 7 and an electromagnetic valve 8, and the high-voltage conducting box 3 comprises an insulating frame 9, a disconnecting link rotating shaft 10, a left disconnecting link 11, a left elastic sheet 12, a left conducting seat 13, a left flexible connecting wire 14, a right disconnecting link 15, a right elastic sheet 16, a right conducting seat 17 and a right flexible connecting wire 18. The invention designs a novel high-voltage isolating switch structure and an assembling layout thereof. The novel high-voltage isolating switch (shown in fig. 1 and 2) is assembled in the following way: the base 4 is made of steel, is provided with mounting holes, and can be mounted and configured according to requirements. The rotary air cylinder 5 and the electromagnetic valve 8 are arranged on the base 4 and are connected through an air pipe, the electromagnetic valve 8 is used for receiving control electric signals to realize air passage conduction, and the rotary air cylinder 5 obtains an air source conducted by the base 4 to realize forward rotation or reverse rotation. The cam 6 is mounted on the rotation shaft of the rotary cylinder 5, and the micro-switches 7 are arranged on both sides of the cam 6 while being fixed on the rotary cylinder 5. The rotary cylinder 5 rotates to drive the cam 6 to rotate, so as to compress the micro switch 7, and the micro switch outputs a closing or opening signal through a wire. The rotary cylinder 5 shaft, the insulating guide rod 2 and the disconnecting link rotary shaft 10 are coaxially arranged and connected, so that the rotary motion of the low-voltage control board 1 can be synchronously transmitted to the high-voltage conducting box 3. The insulating frame 9 is divided into a left cavity and a right cavity which are mutually independent, and the whole insulating frame is made of insulating materials; the disconnecting link rotating shaft 10 is arranged on the insulating frame 9 and communicated with the left chamber and the right chamber; the left disconnecting link 11 and the right disconnecting link 15 are both arranged on the disconnecting link rotating shaft 10 and are respectively arranged in the left cavity and the right cavity; the left conductive seat 13 and the right conductive seat 17 are arranged on the insulating frame 9 and are respectively arranged in the left cavity and the right cavity; the left spring plate 12 and the left flexible connecting wire 14 are arranged on the left conductive seat 13 to form left high-voltage conductive connection, and the right spring plate 16 and the right flexible connecting wire 18 are arranged on the right conductive seat 17 to form right high-voltage conductive connection. The high voltage isolator mechanism is described in detail below in connection with the opening and closing process of the high voltage isolator.
The disconnecting state of the isolating fracture of the novel high-voltage isolating switch is shown in fig. 1 and 2, and the specific action mode is as follows: when the vehicle sends out a high-voltage isolating switch disconnection signal, one end of the electromagnetic valve 8 is electrified, the valve is opened, a vehicle air source enters the rotary cylinder 5 through the electromagnetic valve 8, the rotary cylinder shaft is pushed to rotate positively, the insulating guide rod 2 is driven to rotate, meanwhile, the disconnecting link rotary shaft 10 synchronously rotates, the left disconnecting link 11 and the right disconnecting link 15 rotate along the disconnecting link rotary shaft 10 and are respectively disconnected with the left elastic piece 12 and the right elastic piece 16, a double-isolation breakpoint is formed, and the left soft connecting line 14 connected with the high-voltage input end and the right soft connecting line 18 connected with the high-voltage output end are disconnected, so that the high-voltage main loop is disconnected.
The closing state of the isolation fracture of the novel high-voltage isolating switch is shown in fig. 3, and the specific action mode is as follows: when the vehicle sends out a high-voltage isolating switch closing signal, the other end of the electromagnetic valve 8 is electrified, the valve is opened, a vehicle air source enters the rotary cylinder 5 through the electromagnetic valve 8, the rotary cylinder shaft is pushed to reversely rotate, the insulating guide rod 2 is driven to rotate, meanwhile, the disconnecting link rotary shaft 10 synchronously rotates, the left disconnecting link 11 and the right disconnecting link 15 rotate along the disconnecting link rotary shaft 10 and respectively contact with the left elastic piece 12 and the right elastic piece 16 to form bilateral contact, and a left soft connecting line 14 connected with a high-voltage input end and a right soft connecting line 18 connected with a high-voltage output end are connected, so that a high-voltage main loop is closed.
The novel high-voltage isolating switch has the characteristics of modularization, miniaturization, conciseness and the like, breaks through the design mode of the traditional high-voltage isolating switch, overcomes the defects of large structural space, staggered and complex transmission layout and the like, improves the insulating property of parts, is more beneficial to the integrated design of a high-voltage system, has compact overall structure and excellent insulating property, and improves the reliability and applicability of products.
The novel high-voltage isolating switch for the railway vehicle is mainly designed by structure and transmission aiming at the function of realizing closing and opening of the high-voltage isolating switch, is formed by combining three parts, is connected with a high-voltage conducting box through an insulating guide rod, and is driven to move by the low-voltage control plate to drive the inner parts of the high-voltage conducting box to move so as to realize closing and opening of the isolating switch.
The low pressure and the high pressure are arranged separately, so that the installation is convenient, and the mutual influence is avoided.
The electromagnetic valve controls the air source to be input into the rotary cylinder to realize forward rotation and reverse rotation of the rotary cylinder, the cam and the micro switch are arranged on the rotary cylinder, and the cam synchronously rotates along with the cylinder shaft, so that the micro switch is compressed and released.
The edge frame is provided with a left cavity and a right cavity, 2 conductive seats are respectively fixed on the insulating frame of the left cavity and the right cavity, 2 elastic sheets and 2 soft connecting wires are respectively fixed on the conductive seats of the left cavity and the right cavity, the rotary shaft of the disconnecting link is fixed on the insulating frame, two disconnecting links are connected and extend into the left cavity and the right cavity respectively, and the rotary shaft of the disconnecting link rotates to drive the two disconnecting links to realize double contact and double disconnection with the two elastic sheets in the left cavity and the right cavity, so that the closing and the opening of a high-voltage loop are realized. The 2 soft connecting wires realize the input and output of high-voltage power through reserved interfaces of the insulating frame. The insulating frame insulates the high voltage from the outside, thereby improving the insulating performance of the high voltage isolating switch.
The rotary cylinder, the insulating guide rod and the knife switch rotating shaft are coaxially arranged and synchronously rotate, so that the accuracy and the reliability of transmission are ensured.
The high-voltage isolating switch disclosed by the invention breaks through the design mode of the traditional high-voltage isolating switch based on the modularized, miniaturized and simplified design concept, overcomes the defects of large structural space, staggered and complex transmission layout and the like, improves the insulating property of components, is more beneficial to the integrated design of a high-voltage system, has a compact overall structure and excellent insulating property, and improves the reliability and applicability of products.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions easily contemplated by those skilled in the art within the scope of the present invention should be included in the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims. The information disclosed in the background section herein is only for enhancement of understanding of the general background of the invention and is not to be taken as an admission or any form of suggestion that this information forms the prior art already known to those of ordinary skill in the art.
Claims (1)
1. The high-voltage isolating switch is characterized by comprising a low-voltage control board (1), an insulating guide rod (2) and a high-voltage conducting box (3);
the low-pressure control board (1) comprises a base (4), a rotary cylinder (5), a cam (6), a micro switch (7) and an electromagnetic valve (8);
the high-voltage conducting box (3) comprises an insulating frame (9), a disconnecting link rotating shaft (10), a left disconnecting link (11), a left elastic piece (12), a left conducting seat (13), a left soft connecting wire (14), a right disconnecting link (15), a right elastic piece (16), a right conducting seat (17) and a right soft connecting wire (18);
the rotary shaft of the rotary cylinder (5) is coaxially arranged and connected with the knife switch rotary shaft (10) through an insulating guide rod (2);
the base (4) is made of steel, the rotary air cylinder (5) and the electromagnetic valve (8) are arranged on the base (4), an air source conducted by the base (4) is connected with an air path of the rotary air cylinder (5) through the electromagnetic valve (8), and the electromagnetic valve (8) is connected with a control electric signal;
the cam (6) is arranged on the rotating shaft of the rotating cylinder (5), the micro-switches (7) are arranged on two sides of the cam (6) and are fixed on the rotating cylinder (5) at the same time, the rotating cylinder (5) rotates to drive the cam (6) to rotate, the micro-switches (7) are compressed, and the micro-switches output control electric signals for closing or opening through wires;
the insulating frame (9) is divided into a left cavity and a right cavity which are independent of each other, the whole insulating frame is made of insulating materials, the disconnecting link rotating shaft (10) is arranged on the insulating frame (9) and is communicated with the left cavity and the right cavity; the left disconnecting link (11) and the right disconnecting link (15) are both arranged on the disconnecting link rotating shaft (10) and are respectively arranged in the left cavity and the right cavity; the left conductive seat (13) and the right conductive seat (17) are arranged on the insulating frame (9) and are respectively arranged in the left cavity and the right cavity; the left elastic sheet (12) and the left flexible connecting wire (14) are arranged on the left conductive seat (13) to form left high-voltage conductive connection, and the right elastic sheet (16) and the right flexible connecting wire (18) are arranged on the right conductive seat (17) to form right high-voltage conductive connection;
the specific action mode of the disconnecting state of the isolating fracture of the high-voltage isolating switch is as follows:
when a vehicle sends a high-voltage isolating switch disconnection signal, one end of an electromagnetic valve (8) is electrified, a valve is opened, a vehicle air source enters a rotary cylinder (5) through the electromagnetic valve (8), the rotary cylinder is pushed to rotate positively to drive an insulating guide rod (2) to rotate, meanwhile, a disconnecting link rotating shaft (10) rotates synchronously, a left disconnecting link (11) and a right disconnecting link (15) rotate along the disconnecting link rotating shaft (10) and are respectively disconnected with a left elastic piece (12) and a right elastic piece (16) to form a double-isolation breakpoint, and a left soft connecting line (14) connected with a high-voltage input end and a right soft connecting line (18) connected with a high-voltage output end are disconnected, so that a high-voltage main loop is disconnected;
the specific action mode of the high-voltage isolating switch isolating fracture closing state is as follows:
when the vehicle sends out a high-voltage isolating switch closing signal, the other end of the electromagnetic valve (8) is electrified, the valve is opened, a vehicle air source enters the rotary cylinder (5) through the electromagnetic valve (8), the rotary cylinder shaft is pushed to reversely rotate, the insulating guide rod (2) is driven to rotate, meanwhile, the disconnecting link rotating shaft (10) synchronously rotates, the left disconnecting link (11) and the right disconnecting link (15) rotate along the disconnecting link rotating shaft (10) and are respectively contacted with the left elastic piece (12) and the right elastic piece (16) to form bilateral contact, and a left soft connecting wire (14) connected with the high-voltage input end and a right soft connecting wire (18) connected with the high-voltage output end are connected, so that the high-voltage main loop is closed.
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| CN202111611976.9A CN114360957B (en) | 2021-12-27 | 2021-12-27 | High-voltage isolating switch |
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| CN202111611976.9A CN114360957B (en) | 2021-12-27 | 2021-12-27 | High-voltage isolating switch |
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| CN114360957B true CN114360957B (en) | 2024-03-29 |
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| CN205680598U (en) * | 2016-05-16 | 2016-11-09 | 浙江迪盛新能源科技有限公司 | A kind of indoor high-voltage isolating switch |
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| CN205680598U (en) * | 2016-05-16 | 2016-11-09 | 浙江迪盛新能源科技有限公司 | A kind of indoor high-voltage isolating switch |
| CN206271603U (en) * | 2016-11-14 | 2017-06-20 | 深圳市金路通电器有限公司 | The insulation spindle structure of tri-station isolating switch |
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