CN216288176U - Pneumatic switch for high-voltage reactor - Google Patents
Pneumatic switch for high-voltage reactor Download PDFInfo
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- CN216288176U CN216288176U CN202122482596.1U CN202122482596U CN216288176U CN 216288176 U CN216288176 U CN 216288176U CN 202122482596 U CN202122482596 U CN 202122482596U CN 216288176 U CN216288176 U CN 216288176U
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- voltage reactor
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Abstract
The utility model discloses a pneumatic switch for a high-voltage reactor, which comprises: the upper fixing plate and the lower fixing plate are positioned outside the high-voltage reactor, the upper fixing plate is arranged close to a top plate of the high-voltage reactor, the lower fixing plate is arranged close to a bottom plate of the high-voltage reactor, and the upper fixing plate and the lower fixing plate are horizontally arranged and positioned on the same side of the high-voltage reactor; the telescopic device is arranged on the upper fixing plate, and a piston of the telescopic device faces downwards; the moving contact is connected with the piston; the fixed contact is arranged on the lower fixing plate, and the movable contact can be in contact with the fixed contact or be separated from the fixed contact under the driving of the telescopic device. The pneumatic switch in the utility model occupies smaller space and operation space, thereby facilitating layout and installation and improving the space utilization rate of a laboratory.
Description
Technical Field
The utility model relates to the field of high-voltage electrical high-capacity experiments, in particular to a pneumatic switch for a high-voltage reactor.
Background
The high-voltage reactor group is formed by connecting a plurality of reactors in series, and the high-voltage reactor is a dry type hollow cylinder. And during the test, required high-voltage reactors are put into the test according to loop parameters, and the high-voltage reactors which are not used are short-circuited. Because the high-voltage reactor is in a high-voltage environment when in use, the laboratory usually adopts the opening and closing of a pneumatic switch to realize the input and short circuit of the high-voltage reactor. When the pneumatic switch is switched on, the high-voltage reactor connected in parallel with the pneumatic switch is in short circuit by the switch; and the high-voltage reactor is put into operation during opening. The pneumatic switch bears the short-circuit current of the system when switching on, and bears the voltage applied to two ends of the high-voltage reactor together with the high-voltage reactor when switching off.
The traditional pneumatic switch comprises parts such as a cylinder, a disconnecting link, a static contact seat, an air pipe and the like, and the structure of the traditional pneumatic switch is similar to that of a traditional electric switch. The conventional pneumatic switch occupies too much space, and the conventional pneumatic switch requires a large working space. Thus, the overall layout of the high-voltage reactor is not facilitated.
Therefore, how to design a pneumatic switch, the space that this pneumatic switch occupy is less to required operation space is less, thereby does benefit to pneumatic switch's overall arrangement installation, improves the space utilization in laboratory, is the key problem that the skilled person in the art needs a lot of solution.
SUMMERY OF THE UTILITY MODEL
The utility model aims to design a pneumatic switch, which occupies a small space and requires a small operation space, so that the pneumatic switch is favorable for layout and installation and the space utilization rate of a laboratory is improved. In order to achieve the purpose, the utility model provides the following technical scheme:
a pneumatic switch for a high voltage reactor, comprising:
the upper fixing plate and the lower fixing plate are positioned outside the high-voltage reactor, the upper fixing plate is arranged close to a top plate of the high-voltage reactor, the lower fixing plate is arranged close to a bottom plate of the high-voltage reactor, and the upper fixing plate and the lower fixing plate are horizontally arranged and positioned on the same side of the high-voltage reactor;
the telescopic device is arranged on the upper fixing plate, and a piston of the telescopic device faces downwards;
the moving contact is connected with the piston;
the fixed contact is arranged on the lower fixing plate, and the movable contact can be in contact with the fixed contact or be separated from the fixed contact under the driving of the telescopic device.
Preferably, the telescopic device is a two-stage cylinder.
Preferably, the upper fixing plate and the lower fixing plate horizontally protrude outwards by 145-155 mm relative to the high-voltage reactor.
Preferably, an insulating guide column is arranged between the upper fixed plate and the lower fixed plate, two ends of the insulating guide column are respectively connected with the upper fixed plate and the lower fixed plate, the moving contact is connected to the piston through a moving contact mounting plate, and a through hole matched with the insulating guide column is arranged on the moving contact mounting plate.
Preferably, the high-voltage reactor further comprises a shunt wire and a take-up and pay-off device, the shunt wire is electrically connected with the moving contact, and the take-up and pay-off device is arranged on a top plate of the high-voltage reactor and used for taking up and paying off the shunt wire.
Preferably, the moving contact is connected with the piston through a moving contact connecting plate, and the shunt wire is connected with the moving contact through the moving contact connecting plate.
Preferably, the take-up and pay-off device includes:
the insulating support rod is arranged on a top plate of the high-voltage reactor;
the middle part of the rotating rod is hinged to the top of the insulating support rod;
the counter weight is arranged at one end of the rotating rod, and the other end of the rotating rod is connected with the shunt lead.
Preferably, the other end of the rotating rod is hinged with a roller, and the shunt wire bypasses the roller.
Preferably, a travel switch is arranged on the lower fixed mounting plate, a pressing plate is connected to the piston, and the pressing plate is used for pressing the travel switch.
Preferably, the telescopic device has a self-locking function.
It can be seen from the above technical solution that: in the utility model, the telescopic device is arranged on the upper fixing plate, and the upper fixing plate is arranged close to the top plate of the high-voltage reactor. And arranging the static contact on a lower fixing plate, wherein the lower fixing plate is arranged close to a bottom plate of the high-voltage reactor. The pneumatic switch requires less space than a high voltage reactor. And the opening and closing directions of the moving contact and the static contact are vertical, and the operation space of the pneumatic switch is positioned in the vertical space where the telescopic device and the static contact are positioned, so that an additional large space is not needed. Therefore, the pneumatic switch occupies smaller space and operation space, so that the layout and installation are convenient, and the space utilization rate of a laboratory is improved.
Drawings
In order to more clearly illustrate the solution of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the description below are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without inventive efforts.
Fig. 1 is a plan view of a pneumatic switch for a high-voltage reactor according to an embodiment of the present invention;
fig. 2 is an enlarged view of a movable contact according to an embodiment of the present invention;
fig. 3 is an enlarged view of a stationary contact according to an embodiment of the present invention;
fig. 4 is a plan view of another angle of the pneumatic switch for the high-voltage reactor according to an embodiment of the present invention.
The device comprises a base, a power supply and the like, wherein 1 is an upper fixing plate, 2 is a lower fixing plate, 3 is a telescopic device, 4 is a power supply mounting plate, 5 is a power supply, 6 is a static contact, 7 is a shunt lead, 8 is a rotating rod, 9 is an insulating support rod, 10 is a counterweight, 11 is a high-voltage reactor, and 12 is an insulating guide column.
Detailed Description
The utility model discloses a pneumatic switch for a high-voltage reactor, which occupies a small space and requires a small operation space, so that the pneumatic switch is favorable for layout and installation and the space utilization rate of a laboratory is improved.
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. 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.
In the description of the present invention, the terms "upper", "lower", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention but do not require that the present invention must be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
The utility model discloses a pneumatic switch for a high-voltage reactor 11, which comprises: the device comprises an upper fixed plate 1, a lower fixed plate 2, a telescopic device 3, a movable contact 5 and a static contact 6. Wherein the upper fixing plate 1 and the lower fixing plate 2 are located outside the high-voltage reactor 11. The upper fixing plate 1 is arranged close to the top plate of the high-voltage reactor 11, and the lower fixing plate 2 is arranged close to the bottom plate of the high-voltage reactor 11. The upper fixing plate 1 and the lower fixing plate 2 are horizontally arranged and are located on the same side of the high-voltage reactor 11.
The telescoping device 3 is arranged on the upper fixing plate 1, and the piston of the telescoping device 3 faces downwards. The movable contact 5 is connected to a piston. The static contact 6 is arranged on the lower fixing plate 2. Along with the extension of the piston, the movable contact 5 can be contacted with the fixed contact 6, thereby realizing the closing. When the switch is switched on, the pneumatic switch short-circuits the high-voltage reactor 11. Along with the contraction of the piston, the movable contact 5 can be separated from the fixed contact 6, so that the opening is realized. After the brake is opened, the high-voltage reactor 11 is connected into a loop.
It should be noted that, in order to facilitate switching on, the moving contact 5 is preferably a tulip-shaped contact, and the stationary contact 6 is designed to be cylindrical.
In the present invention, the expansion device 3 is provided on the upper fixing plate 1, and the upper fixing plate 1 is provided near the top plate of the high-voltage reactor 11. The static contact 6 is arranged on the lower fixing plate 2, and the lower fixing plate 2 is arranged close to the bottom plate of the high-voltage reactor 11. The pneumatic switch requires only a small space with respect to the high-voltage reactor 11. And the opening and closing directions of the moving contact 5 and the static contact 6 are vertical, and the operation space of the pneumatic switch is positioned in the vertical space where the telescopic device 3 and the static contact 6 are positioned, so that an extra large space is not needed. Therefore, the pneumatic switch occupies smaller space and operation space, so that the layout and installation are convenient, and the space utilization rate of a laboratory is improved.
It should be noted that, because the moving contact 5 and the static contact 6 are both located outside the high-voltage reactor 11, it is convenient for the operator to observe, and ensures stable operation of the pneumatic switch.
It should be noted that, the upper fixing plate 1 and the lower fixing plate 2 horizontally extend outward by 145mm to 155mm relative to the side end of the high-voltage reactor 11, so that the telescopic device 3 is disposed on the upper fixing plate 1, and the static contact 6 is disposed on the lower fixing plate 2. Compared with the high-voltage reactor 11 with larger size, the space occupied by the upper fixing plate 1 and the lower fixing plate 2 with the thickness of 145mm-155mm is very small.
Regarding the fixing manner of the upper fixing plate 1 and the lower fixing plate 2: one side of the upper fixing plate 1 is connected to the top plate of the high-voltage reactor 11 through a bolt. One side of the lower fixing plate 2 is connected to the bottom plate of the high-voltage reactor 11 through a bolt.
The height of the high voltage reactor 11 is typically more than 2 meters, so the telescopic device 3 in the present invention is a two-stage cylinder. The two-stage cylinder not only can output the long stroke expansion amount, but also has stable working performance. The two-stage cylinder is controlled by the electromagnetic valve, and an operator can realize opening and closing by operating the electromagnetic valve, so that the degree of automation of opening and closing is improved.
The retractor device 3 of the present invention has a self-locking function. Under the state of closing, the telescoping device 3 can be auto-locked, so even if the telescoping device 3 has appeared the air supply not enough, or has lost the situation of air supply, the moving contact 5 still can keep the contact with static contact 6 to stable closing has been ensured.
Because the telescopic stroke of the piston of the telescopic device 3 is longer, in order to ensure that the moving contact 5 and the static contact 6 are stably butted, the utility model is designed as follows: an insulating guide post 12 is provided between the upper fixing plate 1 and the lower fixing plate 2. One end of the insulated guide post 12 is connected with the upper fixing plate 1, and the other end is connected with the lower fixing plate 2. The moving contact 5 is connected to the piston through a moving contact mounting plate 4. The moving contact mounting plate 4 is provided with a through hole matched with the insulation guide column 12. When the moving contact mounting plate 4 moves up and down along with the piston, the moving contact mounting plate 4 drives the moving contact 5 to move up and down stably due to the guiding effect of the insulating guide column 12, so that the brake can be opened and closed smoothly.
In order to realize stable guiding, the number of the insulating guide posts 12 is two, and the two insulating guide posts 12 are distributed in the left-right direction. When the movable contact mounting plate 4 moves up and down, the movable contact mounting plate is guided by the left and right insulating guide columns 12.
In order to avoid large current passing through the telescopic device 3 in a closing state, a shunt wire 7 and a take-up and pay-off device are introduced. The shunt wires 7 are electrically connected with the movable contact 5 through the movable contact mounting plate 4. The shunt conductor 7 is arranged in parallel with the telescopic device 3. When the switch is switched on, the moving contact 5 and the static contact 6 are contacted to generate current, most of the current passes through the shunt wire 7 with smaller resistance, so that the large current can be prevented from passing through the telescopic device 3, and the telescopic device 3 is protected.
The winding and unwinding device is arranged on a top plate of the high-voltage reactor 11. The take-up and pay-off wire is used for realizing the take-up and pay-off of the shunt conductor 7. The shunt wires 7 are connected to the movable contact mounting plate 4. When the telescopic device 3 pushes the moving contact 5 to be switched on downwards, the pay-off and take-up device carries out pay-off operation on the shunt conductor 7, so that the shunt conductor 7 moves downwards along with the moving contact mounting plate 4. When the telescopic device 3 drives the moving contact 5 to switch on upwards, the take-up and pay-off device takes up the shunt conductor 7, so that the shunt conductor 7 moves upwards along with the moving contact mounting plate 4.
It should be noted that one end of the shunt wire 7 is connected to a conductive rod, and the conductive rod is connected to the movable contact mounting plate 4. Namely, the shunt conductor 7 is connected to the moving contact mounting plate 4 through the conducting rod.
It should also be noted that the shunt wire 7 may specifically be a bare copper wire.
The take-up and pay-off principle of the take-up and pay-off device is described as follows: the take-up and pay-off device comprises: insulating support rod 9, bull stick 8 and counter weight 10. The insulating support rod 9 is vertically disposed on the top plate of the high-voltage reactor 11. The middle part of the rotating rod 8 is hinged at the top of the insulating support rod 9. The balance weight 10 is arranged at one end of the rotating rod 8, and the other end of the rotating rod 8 is connected with the shunt lead 7. The rotating rod 8 is similar to a seesaw, one end of the rotating rod 8 is provided with a balance weight 10, and the other end is provided with a shunt lead 7.
When the telescopic device 3 pushes the moving contact mounting plate 4 to move downwards, the shunt conductor 7 gradually moves downwards, and meanwhile, the rotating rod 8 is pulled downwards, and the balance weight 10 tilts up, which is a pay-off. When the telescopic device 3 drives the moving contact mounting plate 4 to move upwards, the tension of the shunt wire 7 on the rotating rod 8 disappears gradually, the rotating rod 8 is pressed downwards by the counterweight 10 under the action of gravity of the counterweight 10, the shunt wire 7 is tilted upwards gradually, and the shunt wire 7 is pulled to the upper part of a top plate of the high-voltage reactor 11, namely a take-up wire.
It should be noted that the weight of the counterweight 10 needs to be determined according to the actual operation condition, so as to ensure that the rotating rod 8 can rotate smoothly in the switching-on and switching-off process, avoid the excessive tension of the shunt conductor 7 in the switching-on process, avoid the counterweight 10 being unable to press down the rotating rod 8 in the switching-off process, or avoid the excessive pressing-down speed of the counterweight 10.
It should be noted that, when the rotating rod 8 performs the seesaw movement, the moving track of the end of the rotating rod 8 is arc-shaped, that is, the moving direction of the end of the rotating rod 8 is always changed. The direction of movement of the shunt wires 7 connected to the ends of the turn bars 8 will also change at all times. In order to ensure that the shunt wires 7 are smoothly turned to avoid large friction force between the shunt wires 7 and the rotating rod 8, the utility model is provided with a roller on the shunt wires 7 side of the rotating rod 8. The roller is rotatably provided at the end of the rotating rod 8. The flow diversion and diversion are wound on the roller.
In order to reflect the switching-on and switching-off states of the pneumatic switch in real time, the utility model is also provided with a travel switch. The travel switch is arranged on the lower fixing plate 2. The moving contact mounting plate 4 is provided with a pressing plate. Along with the downward movement of the moving contact mounting plate 4, the pressure plate can contact and trigger the travel switch, so that a closing signal is triggered. After the pressure plate leaves the travel switch along with the moving contact mounting plate 4, the travel switch resets under the action of the reset spring, so that a brake-separating signal is triggered.
Finally, it should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A pneumatic switch for a high voltage reactor, comprising:
the upper fixing plate and the lower fixing plate are positioned outside the high-voltage reactor, the upper fixing plate is arranged close to a top plate of the high-voltage reactor, the lower fixing plate is arranged close to a bottom plate of the high-voltage reactor, and the upper fixing plate and the lower fixing plate are horizontally arranged and positioned on the same side of the high-voltage reactor;
the telescopic device is arranged on the upper fixing plate, and a piston of the telescopic device faces downwards;
the moving contact is connected with the piston;
the fixed contact is arranged on the lower fixing plate, and the movable contact can be in contact with the fixed contact or be separated from the fixed contact under the driving of the telescopic device.
2. The pneumatic switch for the high-voltage reactor according to claim 1, wherein the telescopic device is a two-stage cylinder.
3. The pneumatic switch for the high-voltage reactor according to claim 1, wherein the upper fixing plate and the lower fixing plate protrude horizontally outward by 145mm to 155mm with respect to the high-voltage reactor.
4. The pneumatic switch of claim 1, wherein an insulating guide post is disposed between the upper fixing plate and the lower fixing plate, two ends of the insulating guide post are respectively connected to the upper fixing plate and the lower fixing plate, the moving contact is connected to the piston through a moving contact mounting plate, and a through hole matched with the insulating guide post is disposed on the moving contact mounting plate.
5. The pneumatic switch for the high-voltage reactor according to claim 1, further comprising a shunt wire and a take-up and pay-off device, wherein the shunt wire is electrically connected with the moving contact, and the take-up and pay-off device is arranged on a top plate of the high-voltage reactor and is used for taking up and paying off the shunt wire.
6. The pneumatic switch of claim 5, wherein the moving contact is connected to the piston through a moving contact connecting plate, and the shunt wire is connected to the moving contact through the moving contact connecting plate.
7. The pneumatic switch for the high-voltage reactor according to claim 5, wherein the take-up and pay-off device comprises:
the insulating support rod is arranged on a top plate of the high-voltage reactor;
the middle part of the rotating rod is hinged to the top of the insulating support rod;
the counter weight is arranged at one end of the rotating rod, and the other end of the rotating rod is connected with the shunt lead.
8. The pneumatic switch for the high-voltage reactor according to claim 7, wherein the other end of the rotating rod is hinged with a roller, and the shunt wire is wound around the roller.
9. The pneumatic switch for the high-voltage reactor according to claim 1, wherein a travel switch is disposed on the lower fixing mounting plate, and a pressing plate is connected to the piston and used for pressing the travel switch.
10. The pneumatic switch for the high-voltage reactor according to claim 1, wherein the telescopic device has a self-locking function.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122482596.1U CN216288176U (en) | 2021-10-14 | 2021-10-14 | Pneumatic switch for high-voltage reactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122482596.1U CN216288176U (en) | 2021-10-14 | 2021-10-14 | Pneumatic switch for high-voltage reactor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216288176U true CN216288176U (en) | 2022-04-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122482596.1U Active CN216288176U (en) | 2021-10-14 | 2021-10-14 | Pneumatic switch for high-voltage reactor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216288176U (en) |
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2021
- 2021-10-14 CN CN202122482596.1U patent/CN216288176U/en active Active
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Address after: No.18, north section of West 2nd Ring Road, Lianhu District, Xi'an City, Shaanxi Province, 710077 Patentee after: Xi'an High Voltage Electrical Apparatus Research Institute Co.,Ltd. Address before: No.18, north section of West 2nd Ring Road, Lianhu District, Xi'an City, Shaanxi Province, 710077 Patentee before: XI'AN HIGH VOLTAGE APPARATUS RESEARCH INSTITUTE Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder |