CN218734250U - Silicon controlled rectifier trigger pulse device suitable for self-energy-taking high-voltage series connection - Google Patents
Silicon controlled rectifier trigger pulse device suitable for self-energy-taking high-voltage series connection Download PDFInfo
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- CN218734250U CN218734250U CN202222364332.0U CN202222364332U CN218734250U CN 218734250 U CN218734250 U CN 218734250U CN 202222364332 U CN202222364332 U CN 202222364332U CN 218734250 U CN218734250 U CN 218734250U
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Abstract
The utility model discloses a silicon controlled trigger pulse device suitable for self-energy-taking high-voltage series connection, which comprises a packaging box, a first circuit board, an insulating fixed plate and a second circuit board; the first circuit board, the insulation fixing plate and the second circuit board are sequentially laminated from top to bottom and are arranged in the packaging box, and the first circuit board is electrically connected with the second circuit board; the first circuit board is provided with a self-energy-taking loop connected with the main loop and is transmitted to the second circuit board through power supply conversion voltage, the second circuit board is provided with a pulse trigger loop connected with the self-energy-taking loop, and the first circuit board is further provided with an optical fiber receiver and an optical fiber transmitter. The utility model discloses a set up range upon range of inner structure, with on the first circuit board from getting can return circuit and the second circuit board on the pulse trigger circuit between separate the branch through insulating fixed plate for trigger pulse is more stable, and silicon controlled rectifier trigger pulse device's internal layout is more reasonable.
Description
Technical Field
The utility model relates to a silicon controlled rectifier trigger pulse device structure's technical field, concretely relates to silicon controlled rectifier trigger pulse device suitable for self-energized high pressure series connection.
Background
The series connection of thyristors is used in many fields of power electronics, such as high-voltage soft starting of electric machines, converter valves for high-voltage direct-current transmission, etc. For the silicon controlled rectifier, the trigger pulse is the gate controlled by the silicon controlled rectifier, and the trigger pulse determines the working state of the silicon controlled rectifier and the whole control circuit and the normal operation of the whole system.
In the high-voltage application of the silicon controlled rectifier, the trigger pulse needs to be self-powered and supplied to a trigger device, namely, the silicon controlled rectifier trigger pulse device, the voltage level of a general high-voltage main circuit is very high, 6KV, 10KV, 20KV, 100KV and the like are common, and the working voltage of an electronic component used by the pulse trigger circuit for generating the silicon controlled rectifier trigger pulse is generally within 20V, so that the requirements on the stability and reliability of the self-powered and supplied power of the silicon controlled rectifier pulse device are high, the high voltage of the main circuit cannot damage an electronic device of the trigger pulse circuit in the trigger pulse device, the requirements on the internal structure of the trigger pulse device are high, and the requirements on the safety distance, EMC and the like need to be met so as to ensure the stability of pulse trigger.
The applicant finds that, in the prior art, the self-energizing circuit and the pulse trigger circuit of the pulse trigger device are designed on the circuit board in a unified manner, in practical application, the circuit board of the pulse trigger device may have a situation of crowded and disordered layout, the pulse trigger circuit is easily interfered by the high voltage of the main circuit, and a situation of triggering pulse error may occur, and even a situation of burning out the pulse trigger device may occur in a severe case. Therefore, it is desirable to improve the internal structure of the trigger pulse device.
SUMMERY OF THE UTILITY MODEL
In order to overcome the crowded and chaotic technical defect of above-mentioned current silicon controlled rectifier trigger pulse device inner structure, the utility model provides an inside is equipped with range upon range of formula circuit board structure be applicable to from getting the silicon controlled rectifier trigger pulse device that can high pressure is established ties.
In order to solve the above problem, the utility model discloses realize according to following technical scheme:
the utility model discloses a silicon controlled trigger pulse device suitable for self-energy-taking high-voltage series connection, which comprises a packaging box, a first circuit board, an insulating fixed plate and a second circuit board;
the first circuit board, the insulating fixing plate and the second circuit board are sequentially stacked and arranged in the packaging box from top to bottom, and the first circuit board is electrically connected with the second circuit board;
the first circuit board is provided with a self-energy-taking loop connected with the main loop and is transmitted to the second circuit board through power supply conversion voltage, the second circuit board is provided with a pulse trigger loop connected with the self-energy-taking loop, and the first circuit board is further provided with an optical fiber receiver and an optical fiber transmitter.
As a preferred embodiment of the present invention, the first circuit board is further provided with an overvoltage protection circuit, a voltage stabilizing circuit, a synchronous power circuit, and a plurality of bolt connection holes; the insulating fixing plate is provided with a plurality of fixing holes; the second circuit board is also provided with a control signal processing circuit, a pulse isolation amplifying and releasing circuit and a plurality of bolt connecting holes.
As a preferred embodiment of the present invention, the first circuit board and the second circuit board are further provided with a first pin hole and a second pin hole 2*4, respectively.
As a preferred embodiment of the present invention, the first circuit board and the second circuit board are butted with each other through the first pin hole and the second pin hole of 2*4 to realize back-to-back mounting.
As the preferred embodiment of the present invention, the middle portion of the insulating fixing plate is provided with an insulating opening, and the direct connecting line of the pin holes of the first circuit board and the second circuit board passes through the insulating opening.
As a preferred embodiment of the present invention, the first circuit board has an L-shaped structure, and the protruding end portion is provided with three wiring ports.
As the preferred embodiment of the utility model, the three wiring ports are respectively connected with the anode of the controlled silicon, the cathode of the controlled silicon and the gate pole of the controlled silicon.
As the preferred embodiment of the present invention, the first circuit board, the insulating fixing plate and the second circuit board are connected by bolts, so that the first circuit board, the insulating fixing plate and the second circuit board are relatively fixed to each other, and the fixing bolt passes through the fixing hole at the periphery of the insulating fixing plate and is fixedly connected to the packaging box, so that the insulating fixing plate and the packaging box are fixedly connected to each other.
As the preferred embodiment of the present invention, the number of the fixing holes on the insulating fixing plate is 9, the upper surface of the insulating fixing plate has 3 first group fixing holes for fixing the first circuit board, and the lower surface of the insulating fixing plate has 3 second group fixing holes for fixing the second circuit board.
As the preferred embodiment of the present invention, the periphery of the insulating fixing plate is further provided with 3 mounting limiting holes penetrating through the insulating circuit board for connecting the insulating circuit board and the packaging box in a limiting manner.
Compared with the prior art, the beneficial effects of the utility model are that:
silicon controlled rectifier trigger pulse device suitable for certainly get and to establish ties by high pressure, it has creatively adopted the three-layer including first circuit board, insulating fixed plate and second circuit board to fold and has pressed connection type inner structure for silicon controlled rectifier trigger pulse device's inside spatial distribution is more reasonable, silicon controlled rectifier trigger pulse device's whole volume can show to be reduced. The utility model discloses a to get certainly can return circuit and power supply setting on first circuit board, with pulse trigger circuit, optical fiber receiver and optical fiber transmitter set up on the second circuit board, set up insulating fixed plate between first circuit board and second circuit board, make the component between first circuit board and the second circuit board can rationally avoid, the overall arrangement of device is more reasonable and neat on first circuit board and the second circuit board, two circuit boards receive under insulating fixed plate divided structure, pulse trigger circuit on the second circuit board, optical fiber receiver, optical fiber transmitter and relevant device are difficult to receive highly compressed influence in getting from can the return circuit on the first circuit board, make the pulse of silicon controlled rectifier trigger pulse device more accurate and stable, and then the device in the protection pulse trigger device, the utility model discloses a device structure adopts the three-layer to fold and presses the connection type inner structure, under the condition of cooperation half closed encapsulation box, can obtain better EMC performance.
Drawings
The following detailed description of embodiments of the invention is provided with reference to the accompanying drawings, in which:
fig. 1 is a schematic view of the whole structure of the thyristor trigger pulse device of the present invention;
fig. 2 is an exploded view of the thyristor trigger pulse device of the present invention;
fig. 3 is a schematic structural diagram of a first circuit board of the present invention;
fig. 4 is a schematic structural view of the insulating fixing plate of the present invention;
fig. 5 is a schematic structural diagram of a second circuit board according to the present invention;
in the figure:
1. packaging the box;
2. a first circuit board; 21. a power supply; 22. first plug a pinhole; 23. a wiring port;
3. an insulating fixing plate; 31. an insulating opening; 32. a fixing hole;
4. a second circuit board; 41. a fiber optic receiver; 42. a fiber optic transmitter; 43. and a second pin hole.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.
The detailed features and advantages of the invention will be described in detail hereinafter in the detailed description, which is for the purpose of promoting an understanding of the principles of the invention and for the purposes of promoting an understanding of the principles of the invention, as embodied and broadly described herein, and will be apparent to one skilled in the art in view of the disclosure, claims, and drawings. The following examples are intended to illustrate the aspects of the present invention in further detail, but are not intended to limit the scope of the present invention in any way.
In addition, in the following description, for the purpose of neatness of the drawings, some conventional structures and elements may be shown in the drawings in a simple schematic manner, and some features in the drawings may be slightly enlarged or changed in scale or size to achieve the purpose of facilitating understanding and viewing of the technical features of the present invention, but this is not intended to limit the present invention. In addition, coordinate axes are provided in the drawings to facilitate understanding of the relative positional relationship and the actuation direction of the elements.
It is to be understood that the terms "upper", "lower", and the like, are used in an orientation or positional relationship based on that shown in the drawings for convenience in describing the present invention and to simplify the description, and are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and are not to be construed as limiting the invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, 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.
Furthermore, the terms "end," "section," "portion," "region," "section," and the like may be used hereinafter to describe a particular feature or feature in or on a particular element or structure, but are not limited to such terms. The following may also use "and/or" to mean a combination including one or more of the associated listed elements or structures, or all of them. Furthermore, the terms "substantially", "about" or "approximately" may also be used hereinafter in connection with ranges of dimensions, concentrations, temperatures or other physical or chemical properties or characteristics, and are intended to cover deviations that may exist in the upper and/or lower limits of the ranges of properties or characteristics, or that represent acceptable deviations from manufacturing tolerances or from analytical procedures that allow for the desired results.
Moreover, unless otherwise defined, all terms or phrases used herein, including technical and scientific terms and expressions, include their ordinary meaning as is understood by those skilled in the art. Furthermore, the definitions of the above words or terms should be read in this specification to be consistent with the meaning of the relevant technical field of the present invention. Unless specifically defined, these terms and phrases are not to be construed in an idealized or formal sense unless expressly so defined.
As shown in fig. 1 to 5, it is a preferred structure of the thyristor trigger pulse device adapted to self-powered high voltage series connection according to the present invention.
As shown in fig. 1 and 2, the utility model discloses a thyristor trigger pulse device suitable for self-powered high-voltage series connection, which comprises a packaging box 1, a first circuit board 2, an insulating fixing plate 3 and a second circuit board 4; the first circuit board 2, the insulating fixing plate 3 and the second circuit board 4 are sequentially stacked and arranged in the packaging box 1 from top to bottom, and the first circuit board 2 is electrically connected with the second circuit board 4; the first circuit board 2 is provided with a self-energy-taking loop connected with the main loop, converts voltage through the power supply 21 and transmits the voltage to the second circuit board 4, and the second circuit board 4 is provided with a pulse trigger loop connected with the self-energy-taking loop, an optical fiber receiver 41 and an optical fiber transmitter 42.
The packaging box 1 is a rectangular box body structure with openings at two ends, the opening at one side of the packaging box 1 is matched with the optical fiber receiver 41 and the optical fiber transmitter 42, and the opening at the other side of the packaging box 1 is matched with the wiring port 23 so as to avoid connection. The packaging box 1 is of an integrated structure or is formed by combining a box cover and a cover body, the packaging box 1 is made of alloy materials and is one of stainless steel, aluminum alloy and copper alloy, and a shielding cavity, namely a Faraday cage, is formed inside the packaging box 1 so as to effectively shield external EMI interference. The packaging box 1 is provided with three fixing bolt holes and two mounting holes. The three fixing bolt holes are used for fixing the insulating plate, the first circuit board and the second circuit board in the packaging box 1; the two mounting holes are used for fixing the packaging box 1 on an external thyristor main circuit.
As a preferred embodiment of the present invention, the first circuit board 2 is further provided with an overvoltage protection circuit, a voltage stabilizing circuit, a synchronous power circuit, and a plurality of bolt connection holes; the insulating fixing plate 3 is provided with a plurality of fixing holes 32; the second circuit board 4 is further provided with a control signal processing circuit, a pulse isolation amplifying and releasing circuit and a plurality of bolt connecting holes, and the first circuit board 2 and the second circuit board 4 are further respectively provided with a first pin inserting hole 22 and a second pin inserting hole 43 of 2*4. The first circuit board 2 and the second circuit board 4 are butted with each other through the first pin hole 22 and the second pin hole 43 of 2*4, so as to realize back-to-back installation.
As the utility model discloses an preferred embodiment, insulating opening 31 has been seted up at the middle part of insulating fixed plate 3, and insulating opening 31 is passed to the direct line in the contact pin hole of first circuit board 2 and second circuit board 4, first circuit board 2 is L type structure, and convex tip is provided with three wiring port 23, the positive pole of silicon controlled rectifier, the negative pole of silicon controlled rectifier and the gate pole of silicon controlled rectifier are connected respectively to three wiring port 23.
As the preferred embodiment of the present invention, the first circuit board 2, the insulating fixing plate 3 and the second circuit board 4 are connected by bolts, so that the first circuit board 2, the insulating fixing plate 3 and the second circuit board 4 are relatively fixed, and the fixing holes 32 and the packaging box 1 are fixedly connected by passing through the periphery of the insulating fixing plate 3 by fixing bolts, so that the insulating fixing plate 3 and the packaging box 1 are fixedly connected, the number of the fixing holes 32 on the insulating fixing plate 3 is 9, the upper surface of the insulating fixing plate 3 has 3 first group fixing holes 32 for fixing the first circuit board 2, and the lower surface of the insulating fixing plate 3 has 3 second group fixing holes 32 for fixing the second circuit board 4. The periphery of the insulation fixing plate 3 is also provided with 3 installation limiting holes which penetrate through the insulation circuit board and are used for connecting the insulation circuit board with the packaging box 1 for limiting.
As shown in fig. 3, is a schematic structural diagram of the first circuit board 2 according to the present invention. The whole first circuit board 2 is of an L-shaped structure, three bolt connecting holes are formed in the first circuit board 2, and the size of each hole is M8; the end part of the first circuit board 2 protruding outwards is provided with three wiring terminals, and the aperture size is M8; the first circuit board 2 is further provided with a first pin hole 22 of 2*4. The three bolt connecting holes are used for fixedly connecting the first circuit board 2 to the insulating fixing plate 3; the three wiring terminals are respectively used for externally connecting the anode, the cathode and the gate pole of the controlled silicon; and 2*4 has a first pin hole 22 for connecting with a second pin hole 43 of 2*4 on the second circuit board 4, so as to transfer the 20V power obtained by converting the first circuit board 2 by the power supply 21 to the second circuit board 4.
As shown in fig. 4, it is a schematic structural diagram of the insulating fixing plate 3 of the present invention. The insulating fixing plate 3 is made of an insulating material, specifically made of one of plastic, rubber and silica gel, nine fixing holes 32 are formed in the insulating fixing plate 3, and the hole diameter of each fixing hole 32 is M8. The insulating fixing plate 3 has 3 first fixing holes 32 for fixing the first circuit board 2 on the upper surface thereof, and 3 second fixing holes 32 for fixing the second circuit board 4 on the lower surface thereof. The periphery of the insulation fixing plate 3 is also provided with 3 installation limiting holes which penetrate through the insulation circuit board and are used for connecting the insulation circuit board with the packaging box 1 for limiting. First circuit board 2 and second circuit board 4 use back-to-back formula mounting structure on the insulation board, use insulating fixed plate 3 in the middle of back-to-back installation can prevent effectively that the high pressure from concatenating the pulse trigger circuit on the second circuit board 4, owing to insulating fixed plate 3's existence has increased the isolation safe distance simultaneously.
As shown in fig. 5, it is a schematic structural diagram of the second circuit board 4 according to the present invention. The second circuit board 4 is provided with three bolt connecting holes, and the aperture size is M8; the optical fiber connector further comprises a second pin jack 43 of 2*4, an optical fiber receiver 41 and an optical fiber transmitter 42. The three bolt connecting holes are used for fixing the second circuit board 4 on the insulating mounting plate; 2*4, the second pin hole 43 is used to receive the 20V power supply from the first circuit board, and this 2*4 second pin hole 43 and the first pin hole 22 of 2*4 are connected to each other. The optical fiber receiver 41 and the optical fiber transmitter 42 are used for communication with a monitoring system, and are installed on the side of the second circuit board 4 to be distant from the high voltage part and the electric part of the second circuit board 4, thereby avoiding EMI interference.
Silicon controlled rectifier trigger pulse device suitable for certainly get and to establish ties from can high pressure theory of operation be:
silicon controlled rectifier trigger pulse device suitable for certainly get and to establish ties by high pressure, it has creatively adopted the three-layer of first circuit board 2, insulating fixed plate 3 and second circuit board 4 and has folded pressure connection type inner structure for silicon controlled rectifier trigger pulse device's inside spatial distribution is more reasonable, silicon controlled rectifier trigger pulse device's whole volume can show and dwindle. The utility model discloses a to get from can return circuit and power supply 21 setting on first circuit board 2, with pulse trigger circuit, optical fiber receiver 41 and optical fiber transmitter 42 set up on second circuit board 4, set up insulating fixed plate 3 between first circuit board 2 and second circuit board 4, make the component between first circuit board 2 and the second circuit board 4 rationally avoid, the overall arrangement of device is more reasonable and neat on first circuit board 2 and the second circuit board 4, receive insulating fixed plate 3 divided structure under two circuit boards, pulse trigger circuit on the second circuit board 4, optical fiber receiver 41, optical fiber transmitter 42 and relevant device are difficult to receive the influence in highly compressed getting can the return circuit on first circuit board 2, make silicon controlled rectifier trigger pulse device's pulse more accurate and stable, and then protect the device in the pulse trigger device, the utility model discloses a three-layer pressure-superposed connection type inner structure that the device structure adopted, under the half encapsulation box 1's of cooperation condition, can obtain better EMC performance.
Other structures suitable for the thyristor trigger pulse device capable of taking high voltage in series in the embodiment are shown in the prior art.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, so that any modification, equivalent change and modification made by the technical spirit of the present invention to the above embodiments do not depart from the technical solution of the present invention, and still fall within the scope of the technical solution of the present invention.
Claims (10)
1. A silicon controlled rectifier trigger pulse device suitable for self-energy-taking high-voltage series connection is characterized by comprising a packaging box, a first circuit board, an insulating fixing plate and a second circuit board;
the first circuit board, the insulating fixing plate and the second circuit board are sequentially stacked and arranged in the packaging box from top to bottom, and the first circuit board is electrically connected with the second circuit board;
the first circuit board is provided with a self-energy-taking loop connected with the main loop and is transmitted to the second circuit board through power supply conversion voltage, the second circuit board is provided with a pulse trigger loop connected with the self-energy-taking loop, and the first circuit board is further provided with an optical fiber receiver and an optical fiber transmitter.
2. The thyristor trigger pulse device suitable for self-energized high-voltage series connection according to claim 1, wherein:
the first circuit board is also provided with an overvoltage protection circuit, a voltage stabilizing circuit, a synchronous power supply circuit and a plurality of bolt connecting holes;
the insulating fixing plate is provided with a plurality of fixing holes;
the second circuit board is also provided with a control signal processing circuit, a pulse isolation amplifying and releasing circuit and a plurality of bolt connecting holes.
3. The thyristor trigger pulse device suitable for self-energized high-voltage series connection according to claim 2, wherein:
the first circuit board and the second circuit board are also respectively provided with a first pin hole and a second pin hole of 2*4.
4. The thyristor trigger pulse device suitable for self-powered high-voltage series connection according to claim 3, wherein:
the first circuit board and the second circuit board are mutually butted through the first pin hole and the second pin hole of 2*4, so that back-to-back installation is realized.
5. The thyristor trigger pulse device suitable for self-powered high-voltage series connection according to claim 4, wherein:
an insulation opening is formed in the middle of the insulation fixing plate, and a direct connecting line of the pin holes of the first circuit board and the second circuit board penetrates through the insulation opening.
6. The thyristor trigger pulse device suitable for self-energized high-voltage series connection according to claim 1, wherein:
the first circuit board is of an L-shaped structure, and three wiring ports are formed in the protruding end portion of the first circuit board.
7. The thyristor trigger pulse device suitable for self-powered high-voltage series connection according to claim 6, wherein:
the three wiring ports are respectively connected with the anode of the controlled silicon, the cathode of the controlled silicon and the gate pole of the controlled silicon.
8. The thyristor trigger pulse device suitable for self-powered high-voltage series connection according to claim 2, wherein:
the first circuit board, the insulating fixing plate and the second circuit board are connected through bolts so that the first circuit board, the insulating fixing plate and the second circuit board are relatively fixed, and the insulating fixing plate and the packaging box are fixedly connected through fixing bolts penetrating through fixing holes in the periphery of the insulating fixing plate.
9. The thyristor trigger pulse device suitable for self-energized high-voltage series connection according to claim 8, wherein:
the quantity of the fixed orifices on the insulating fixed plate is 9, and the upper surface of insulating fixed plate has 3 first group fixed orifices that are used for fixed first circuit board, and the lower surface of insulating fixed plate has 3 second group fixed orifices that are used for fixed second circuit board.
10. The thyristor trigger pulse device suitable for self-energized high-voltage series connection according to claim 9, wherein:
the periphery of the insulation fixing plate is also provided with 3 installation limiting holes which penetrate through the insulation circuit board and are used for connecting the insulation circuit board with the packaging box in a limiting manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222364332.0U CN218734250U (en) | 2022-09-06 | 2022-09-06 | Silicon controlled rectifier trigger pulse device suitable for self-energy-taking high-voltage series connection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222364332.0U CN218734250U (en) | 2022-09-06 | 2022-09-06 | Silicon controlled rectifier trigger pulse device suitable for self-energy-taking high-voltage series connection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218734250U true CN218734250U (en) | 2023-03-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222364332.0U Active CN218734250U (en) | 2022-09-06 | 2022-09-06 | Silicon controlled rectifier trigger pulse device suitable for self-energy-taking high-voltage series connection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218734250U (en) |
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2022
- 2022-09-06 CN CN202222364332.0U patent/CN218734250U/en active Active
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