CN114360957A - High-voltage isolating switch - Google Patents
High-voltage isolating switch Download PDFInfo
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- CN114360957A CN114360957A CN202111611976.9A CN202111611976A CN114360957A CN 114360957 A CN114360957 A CN 114360957A CN 202111611976 A CN202111611976 A CN 202111611976A CN 114360957 A CN114360957 A CN 114360957A
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- 238000013461 design Methods 0.000 abstract description 15
- 230000005540 biological transmission Effects 0.000 abstract description 14
- 238000002955 isolation Methods 0.000 description 9
- 239000012212 insulator Substances 0.000 description 8
- 238000009413 insulation Methods 0.000 description 7
- 230000007246 mechanism Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 4
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- 230000003068 static effect Effects 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
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- 230000005611 electricity Effects 0.000 description 1
- 230000008713 feedback mechanism Effects 0.000 description 1
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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-voltage control board 1 comprises a base 4, a rotary cylinder 5, a cam 6, a microswitch 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 sheet 12, a left conductive seat 13, a left soft connecting wire 14, a right disconnecting link 15, a right elastic sheet 16, a right conductive seat 17 and a right soft connecting wire 18; the rotating shaft of the rotating cylinder 5 is coaxially arranged and connected with the knife switch rotating shaft 10 through the insulating guide rod 2. The modular design is adopted, the low-voltage control board and the high-voltage conducting box are divided into two independent units which are connected through the insulating guide rod, the size of the parts can be effectively reduced under the condition that the insulating property and the reliability are not reduced, and the goal of miniaturization is achieved; the transmission mode of an integrated axis realizes the synchronism 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 a simple and compact integral structure and high reliability.
Description
Technical Field
The invention relates to a device for a rail vehicle, in particular to a high-voltage isolating switch.
Background
At present, the mode that high-voltage components are integrated in a high-voltage box of a high-speed motor train unit is a trend of development of a high-voltage system of a train, the integrated design requires miniaturization and modular 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 maintenance period is prolonged, and the space of the train is greatly utilized. The high-voltage isolating switch is one kind of integrated part, is important switch device and protecting equipment in locomotive and motor train, and is mainly used in isolating fault high-voltage unit and maintaining normal train operation.
The high-voltage isolating switch which is traditionally installed in the high-voltage box is structurally characterized in that the high-voltage isolating switch is of a single-fracture type, transmission is carried out by virtue of a linear cylinder, electric control is carried out, an electromagnetic valve is electrified to open a valve, high-pressure air enters the linear cylinder from the valve, a piston is pushed to move, a four-bar mechanism is driven to act, and then the moving contact and the static contact are pushed to be closed and opened. The main composition 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 static contact, a cam, a microswitch, 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 static contact are arranged on the insulator, the electromagnetic valve, the linear air cylinder, the rotating shaft, the rotating arm and the pull rod insulator form a transmission system, the linear motion of the air cylinder is converted into the rotary motion of the moving contact, and the opening and closing of the main loop are realized. The high-voltage isolating switch signal feedback mechanism mainly comprises a cam, a microswitch and other components and is used for feeding back the open and close states of a main circuit of the high-voltage isolating switch.
The disadvantages of the prior art are as follows:
the whole structure is simple and complex, and the synchronism, reliability and transmission efficiency of the actions of the low-voltage control unit and the high-voltage conductive unit are poor.
In view of the above, the present invention is particularly proposed.
Disclosure of Invention
The invention aims to provide a high-voltage isolating switch to solve the technical problems in the prior art.
The purpose of the invention is realized by 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-voltage control board 1 comprises a base 4, a rotary cylinder 5, a cam 6, a microswitch 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 sheet 12, a left conductive seat 13, a left soft connecting wire 14, a right disconnecting link 15, a right elastic sheet 16, a right conductive seat 17 and a right soft connecting wire 18;
the rotating shaft of the rotating cylinder 5 is coaxially arranged and connected with the knife switch rotating shaft 10 through the insulating guide rod 2.
Compared with the prior art, the high-voltage isolating switch provided by the invention adopts a modular design and is divided into two independent units, namely a low-voltage control board and a high-voltage conducting box, which are connected through an 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 the opening of a main loop are realized. The high-voltage conductive box uses a relatively closed insulating frame structure, two independent insulating cavities are designed, double-support insulators are omitted, single-isolation fractures are optimized into double-isolation fractures, double-insulation isolation is formed, the same isolation interval is adopted, the space size is greatly reduced, meanwhile, the insulating frame can guarantee the high-voltage conductive bodies to be isolated from the outside in an insulating mode to the maximum extent, the size of parts can be effectively reduced under the condition that the insulating performance and the reliability are not reduced, and the miniaturization target is achieved. The transmission mode of an integrated axis realizes the synchronism 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 a simple and compact integral structure and high reliability.
Drawings
Fig. 1 is a top view (cut-away view) of a novel high-voltage isolation switch in an embodiment of the invention;
fig. 2 is a bottom view (cut-away view) of the novel high-voltage isolation switch in an embodiment of the invention;
fig. 3 is a front view (closed state cross section) of the novel high-voltage isolating switch in the embodiment of the invention;
in the figure:
1 low-voltage control board, 2 insulating guide rods, 3 high-voltage conductive boxes, 4 bases, 5 rotary cylinders, 6 cams, 7 micro-switches, 8 electromagnetic valves, 9 insulating frames, 10 disconnecting link rotating shafts, 11 left disconnecting links, 12 left elastic sheets, 13 left conductive seats, 14 left flexible connecting lines, 15 right disconnecting links, 16 right elastic sheets, 17 right conductive seats and 18 right flexible connecting lines.
Detailed Description
The technical scheme in the embodiment of the invention is clearly and completely described below by combining the attached drawings in the embodiment of the invention; it is to be understood that the described embodiments are merely exemplary of the invention, and are not intended to limit the invention to the particular forms disclosed. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
The terms that may be used herein are first described as follows:
the term "and/or" means that either or both can be achieved, for example, X and/or Y means that both cases include "X" or "Y" as well as three cases including "X and Y".
The terms "comprising," "including," "containing," "having," or other similar terms of meaning should be construed as non-exclusive inclusions. For example: including a feature (e.g., material, component, ingredient, carrier, formulation, material, dimension, part, component, mechanism, device, process, procedure, method, reaction condition, processing condition, parameter, algorithm, signal, data, product, or article of manufacture), is to be construed as including not only the particular feature explicitly listed but also other features not explicitly listed as such which are known in the art.
The term "consisting of … …" is meant to exclude any technical feature elements not explicitly listed. If used in a claim, the term shall render the claim closed except for the inclusion of the technical features that are expressly listed except for the conventional impurities associated therewith. If the term occurs in only one clause of the claims, it is defined only to the elements explicitly recited in that clause, and elements recited in other clauses are not excluded from the overall claims.
Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "secured," etc., are to be construed broadly, as for example: can be fixedly connected, can also be detachably connected or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms herein can be understood by those of ordinary skill in the art as appropriate.
The terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like are used in an orientation or positional relationship that is indicated based on the orientation or positional relationship shown in the drawings for ease of description and simplicity of description only, and are not intended to imply or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting herein.
Details which are not described in detail in the embodiments of the invention belong to the prior art which is known to the person skilled in the art. Those not specifically mentioned in the examples of the present invention were carried out according to the conventional conditions in the art or conditions suggested by the manufacturer. The reagents or instruments used in the examples of the present invention are not specified by manufacturers, and are all conventional products available by commercial purchase.
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-voltage control board 1 comprises a base 4, a rotary cylinder 5, a cam 6, a microswitch 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 sheet 12, a left conductive seat 13, a left soft connecting wire 14, a right disconnecting link 15, a right elastic sheet 16, a right conductive seat 17 and a right soft connecting wire 18;
the rotating shaft of the rotating cylinder 5 is coaxially arranged and connected with the knife switch rotating shaft 10 through the insulating guide rod 2.
The base 4 is a steel plate, the rotary cylinder 5 and the electromagnetic valve 8 are installed on the base 4, an air source conducted by the base 4 is connected with an air path of the rotary cylinder 5 through the electromagnetic valve 8, and the electromagnetic valve 8 is connected with a control electric signal.
The cam 6 is installed on the rotating shaft of the rotating cylinder 5, the micro switch 7 is arranged on two sides of the cam 6 and is fixed on the rotating cylinder 5, the rotating cylinder 5 rotates to drive the cam 6 to rotate, the micro switch 7 is compressed, and the micro switch outputs a closed or open control electric signal through a lead.
The insulation frame 9 is divided into a left cavity and a right cavity which are independent from each other, the whole insulation frame is made of insulation materials, and the disconnecting link rotating shaft 10 is arranged on the insulation frame 9 and communicated with the left cavity and the right cavity; the left knife switch 11 and the right knife switch 15 are both arranged on the knife switch 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 installed 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 installed on the right conductive seat 17 to form right high-voltage conductive connection.
The specific action mode of the high-voltage isolating switch in the disconnecting state of the isolating fracture is as follows:
when a vehicle sends a high-voltage isolating switch-off 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 to push the rotary cylinder shaft to rotate in the forward direction to drive the insulating guide rod 2 to rotate, meanwhile, the disconnecting link rotating shaft 10 rotates synchronously, the left disconnecting link 11 and the right disconnecting link 15 rotate along the disconnecting link rotating shaft 10 to be respectively disconnected with the left elastic sheet 12 and the right elastic sheet 16 to form double isolating breakpoints, and the left flexible connecting line 14 connected with the high-voltage input end and the right flexible connecting line 18 connected with the 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 in the closed state of the isolating fracture is as follows:
when a vehicle sends 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 to push the rotary cylinder shaft to rotate reversely, the insulating guide rod 2 is driven to rotate, meanwhile, the disconnecting link rotating shaft 10 rotates synchronously, 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 sheet 12 and the right elastic sheet 16 to form bilateral contact, the left flexible connecting line 14 connected with the high-voltage input end is connected with the right flexible connecting line 18 connected with the high-voltage output end, and therefore the high-voltage main loop is closed.
In summary, the novel high-voltage isolating switch according to the embodiment of the invention divides the low-voltage control unit and the high-voltage conducting unit into two separate parts, which are connected with each other through the insulating guide rod, and transmits the rotation action of the low-voltage control unit to the high-voltage unit to drive the high-voltage unit to rotate, so as to realize the closing and opening of the main circuit. The novel high-voltage isolating switch completely breaks the mode of supporting an insulator of the traditional high-voltage isolating switch, cancels the supporting insulator, optimizes a single isolating fracture into double isolating fractures, simultaneously disconnects an input end and an output end to form double insulating isolation, and reduces the space size greatly at the same isolating interval. 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 microswitch 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, adopts an integrated structure and is beneficial to installation, disassembly and maintenance. A high-voltage composite insulation concept is introduced to design a high-voltage conductive box, the input end and the output end belong to different insulation chambers, a conductive rotating shaft is designed in the middle, connection and disconnection of the input end and the output end are achieved, the size is greatly reduced under the function of isolating a fault circuit, and the insulation safety reliability and the structural compactness are enhanced. The transmission mode of an integrated axis is designed, the four-connecting-rod transmission mechanism of the traditional isolating switch is simplified, and the synchronism of the actions of the low-voltage control unit and the high-voltage conductive unit and the transmission efficiency are realized. The novel high-voltage isolating switch is simple and compact in assembling structure, obvious in miniaturization trend, easy to realize and high in reliability of an operating mechanism.
In order to more clearly show the technical solutions and the technical effects provided by the present invention, the following detailed description is provided for the embodiments of the present invention with specific embodiments.
Example 1
The high-voltage isolating switch (as shown in figure 1) comprises a main body which is divided into three parts, namely 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 microswitch 7 and an electromagnetic valve 8, and 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 sheet 12, a left conductive seat 13, a left flexible connecting wire 14, a right disconnecting link 15, a right elastic sheet 16, a right conductive seat 17 and a right flexible connecting wire 18. The invention designs a novel high-voltage isolating switch structure and an assembly layout thereof. The novel high-voltage isolating switch (as shown in fig. 1 and fig. 2) is assembled in the following way: the base 4 is a steel plate and is provided with a mounting hole, and can be mounted and configured as required. Revolving cylinder 5, solenoid valve 8 are installed on base 4, and both pass through the trachea and connect, and solenoid valve 8 is used for receiving the control signal of telecommunication, realizes that the gas circuit switches on, and revolving cylinder 5 obtains the air supply of base 4 conduction, realizes corotation or reversal. A cam 6 is installed on a rotation shaft of the rotary cylinder 5, and micro switches 7 are disposed at 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, the microswitch 7 is compressed, and the microswitch outputs a closing or opening signal through a lead. The rotating cylinder 5 shaft, the insulating guide rod 2 and the disconnecting link rotating shaft 10 are coaxially arranged and connected, so that the rotating action of the low-voltage control plate 1 can be synchronously transmitted to the high-voltage conductive box 3. The insulating frame 9 is divided into a left chamber and a right chamber which are independent from each other, and the whole body is made of insulating materials; the disconnecting link rotating shaft 10 is arranged on the insulating frame 9 and communicated with the left cavity and the right cavity; the left knife switch 11 and the right knife switch 15 are both arranged on the knife switch 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 installed 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 installed on the right conductive seat 17 to form right high-voltage conductive connection. The high-voltage isolating switch mechanism is described in detail below with reference to the opening and closing processes of the high-voltage isolating switch.
The disconnection state of the isolation fracture of the novel high-voltage isolating switch is shown in fig. 1 and fig. 2, and the specific action mode is as follows: when a vehicle sends a high-voltage isolating switch-off 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 in the forward direction, the insulating guide rod 2 is driven to rotate, meanwhile, the disconnecting link rotating shaft 10 rotates synchronously, the left disconnecting link 11 and the right disconnecting link 15 rotate along the disconnecting link rotating shaft 10 and are disconnected with the left elastic piece 12 and the right elastic piece 16 respectively to form double isolating breakpoints, 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, and therefore a 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 a vehicle sends 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 to push the rotary cylinder shaft to rotate reversely, the insulating guide rod 2 is driven to rotate, meanwhile, the disconnecting link rotating shaft 10 rotates synchronously, 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 sheet 12 and the right elastic sheet 16 to form bilateral contact, the left flexible connecting line 14 connected with the high-voltage input end is connected with the right flexible connecting line 18 connected with the high-voltage output end, and therefore the high-voltage main loop is closed.
The novel high-voltage isolating switch designed by the invention has the characteristics of modularization, miniaturization, simplification and the like, breaks through the design type 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 components, is more beneficial to the integrated design of a high-voltage system, has compact integral structure and excellent insulating property, and improves the reliability and the applicability of products.
The novel high-voltage isolating switch for the rail vehicle is designed, the structure and the transmission design are mainly carried out on the functions of realizing closing and breaking of the high-voltage isolating switch, the high-voltage isolating switch is in a modular design and is formed by combining three parts, a low-voltage control panel and a high-voltage conducting box are connected through an insulating guide rod, the low-voltage control panel drives the insulating guide rod to act, and parts inside the high-voltage conducting box are driven to act to realize closing and breaking of the isolating switch.
The low pressure and the high pressure are separately arranged, 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 the positive rotation and the reverse rotation of the rotary cylinder, the cam and the microswitch are arranged on the rotary cylinder, and the cam synchronously rotates along with the cylinder shaft to compress and release the microswitch.
The edge frame is provided with a left independent cavity and a right independent cavity, 2 conductive seats are respectively fixed on an insulating frame of a left cavity and a right cavity, 2 elastic sheets and 2 flexible connecting lines are respectively fixed on the conductive seats of the left cavity and the right cavity, a disconnecting link rotating shaft is fixed on the insulating frame, two disconnecting links are simultaneously connected and respectively extend into the left cavity and the right cavity, the disconnecting link rotating shaft 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, and therefore closing and disconnection of a high-voltage loop are realized. The 2 soft connecting wires realize the input and output of high voltage electricity through the reserved interface of the insulating frame. The insulating frame insulates and isolates high voltage from the outside, thereby improving the insulating property 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 is based on the design concepts of modularization, miniaturization and simplification, breaks through the design style 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 components, is more beneficial to the integrated design of a high-voltage system, has a compact integral structure and excellent insulating property, and improves the reliability and the applicability of products.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims. The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.
Claims (5)
1. A 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-voltage control plate (1) comprises a base (4), a rotary cylinder (5), a cam (6), a microswitch (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 sheet (12), a left conductive seat (13), a left flexible connecting wire (14), a right disconnecting link (15), a right elastic sheet (16), a right conductive seat (17) and a right flexible connecting wire (18);
the rotating shaft of the rotating cylinder (5) is coaxially arranged and connected with the disconnecting link rotating shaft (10) through the insulating guide rod (2).
2. The high-voltage isolating switch according to claim 1, wherein the base (4) is a steel plate, the rotary cylinder (5) and the solenoid valve (8) are mounted on the base (4), an air source conducted by the base (4) is connected with an air passage of the rotary cylinder (5) through the solenoid valve (8), and the solenoid valve (8) is connected with the control electric signal.
3. The high-voltage isolating switch according to claim 2, wherein the cam (6) is mounted on a rotating shaft of the rotating cylinder (5), the micro switch (7) is arranged on two sides of the cam (6) and is fixed on the rotating cylinder (5), the rotating cylinder (5) rotates to drive the cam (6) to rotate, the micro switch (7) is compressed, and the micro switch outputs a closed or open control electric signal through a lead.
4. The high-voltage isolating switch according to claim 3, wherein the insulating frame (9) is divided into a left chamber and a right chamber which are independent from each other, the whole insulating frame is made of insulating material, and the disconnecting link rotating shaft (10) is installed on the insulating frame (9) and communicated with the left chamber and the right chamber; the left knife switch (11) and the right knife switch (15) are both arranged on the knife switch 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.
5. The high voltage isolator of claim 4, wherein:
the specific action mode of the high-voltage isolating switch in the disconnecting state of the isolating fracture is as follows:
when a vehicle sends a high-voltage isolating switch-off 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) to push the rotary cylinder shaft to rotate in the forward direction to drive the insulating guide rod (2) to rotate, meanwhile, the disconnecting link rotating shaft (10) rotates synchronously, the left disconnecting link (11) and the right disconnecting link (15) rotate along the disconnecting link rotating shaft (10) and are respectively disconnected with the left elastic sheet (12) and the right elastic sheet (16) to form double isolating breakpoints, a left flexible connecting line (14) connected with a high-voltage input end and a right flexible connecting line (18) connected with a high-voltage output end are disconnected, and therefore a high-voltage main loop is disconnected;
the specific action mode of the high-voltage isolating switch in the closed state of the isolating fracture is as follows:
when a vehicle sends 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 rotate reversely, the insulating guide rod (2) is driven to rotate, meanwhile, the disconnecting link rotating shaft (10) rotates synchronously, 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 sheet (12) and the right elastic sheet (16) to form bilateral contact, a left flexible connecting wire (14) connected with a high-voltage input end and a right flexible connecting wire (18) connected with a high-voltage output end are connected, and therefore 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 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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| CN210956533U (en) * | 2019-11-08 | 2020-07-07 | 上海启腾电气股份有限公司 | Three-station isolating switch for inflating cabinet |
| CN212230317U (en) * | 2020-07-01 | 2020-12-25 | 石家庄永瑞电力设备有限公司 | High-voltage isolating switch |
| CN213042831U (en) * | 2020-08-25 | 2021-04-23 | 武汉长海电气科技开发有限公司 | Bipolar heavy current isolator |
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2021
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| CN203192670U (en) * | 2013-04-19 | 2013-09-11 | 镇江维依埃电工研究所有限公司 | High voltage isolation switch housing |
| CN203367126U (en) * | 2013-07-23 | 2013-12-25 | 株洲车城机车配件有限公司 | Locomotive high-pressure isolation switch based on pneumatic control |
| CN204577304U (en) * | 2015-02-10 | 2015-08-19 | 南车株洲电力机车有限公司 | A kind of motor train unit high voltage isolator |
| CN204577310U (en) * | 2015-04-27 | 2015-08-19 | 四川省绵竹西南电工设备有限责任公司 | A kind of rotary pneumatic high voltage isolator |
| CN205384979U (en) * | 2016-01-05 | 2016-07-13 | 苏州电器科学研究院股份有限公司 | Pneumatic isolator of double linkage |
| 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 |
| CN107706043A (en) * | 2017-11-28 | 2018-02-16 | 北京中车赛德铁道电气科技有限公司 | A kind of vacuum direct current quick breaker |
| CN208077856U (en) * | 2018-01-22 | 2018-11-09 | 北京中车赛德铁道电气科技有限公司 | A kind of high voltage isolator |
| CN210956533U (en) * | 2019-11-08 | 2020-07-07 | 上海启腾电气股份有限公司 | Three-station isolating switch for inflating cabinet |
| CN212230317U (en) * | 2020-07-01 | 2020-12-25 | 石家庄永瑞电力设备有限公司 | High-voltage isolating switch |
| CN213042831U (en) * | 2020-08-25 | 2021-04-23 | 武汉长海电气科技开发有限公司 | Bipolar heavy current isolator |
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| CN114360957B (en) | 2024-03-29 |
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