CN217820528U - Fault arc generating equipment capable of automatically generating multiple arcs - Google Patents
Fault arc generating equipment capable of automatically generating multiple arcs Download PDFInfo
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- CN217820528U CN217820528U CN202221482357.4U CN202221482357U CN217820528U CN 217820528 U CN217820528 U CN 217820528U CN 202221482357 U CN202221482357 U CN 202221482357U CN 217820528 U CN217820528 U CN 217820528U
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Abstract
The utility model relates to a fault arc generating device capable of automatically generating a plurality of arcs, which comprises at least one arc generating device and an arc control device used for controlling the arc generating device; the first arc generating structure is fixed at the first end of the bottom plate through a fixing structure; a motor bracket is fixed at the second end of the bottom plate; the stepping motor is fixed on the motor bracket; the second electric arc generating structure is fixed on a shaft of the stepping motor through a guide structure; the guide structure converts the rotation of the shaft of the stepping motor into linear motion; when the first arc generating structure and the second arc generating structure are close to or in contact, an arc is generated between the first arc generating structure and the second arc generating structure; the signal output end of the electric arc control device controls the stepping motor. The utility model discloses can the production of the different kinds of electric arcs of automatic control, and then data and situation that the different electric arcs of convenient record produced are convenient for produce the arc fault and test and study.
Description
Technical Field
The utility model relates to an electric arc produces the device, concretely relates to can produce trouble arc generating equipment of multiple electric arc automatically.
Background
In recent years, civil buildings have severe electrical fires, which account for about 30% of the total number of fires. Among the causes of electrical fires, fault arcs are the primary cause. Research and development of detection and protection devices for fault arcs have been paid attention by various countries. The fault arc product test items are various, and the types of fault arcs are also various. Fault arc refers to an arc caused by poor contact, line aging, insulation damage, wire damage, etc. Generally, the arc is classified into a series arc, a parallel arc, and the like.
In the prior art, in order to test and research the fault arc and further research a scheme for avoiding the fault arc, the generation of the fault arc needs to be reproduced in a laboratory. In the prior art, the general automation degree is not high, manual wiring and manual testing are needed, the testing and testing efficiency is low, the manual labor intensity is high, the repeatability of testing and researching conditions is poor, and the generation condition of electric arc is difficult to reproduce. And if several arcs need to be generated simultaneously, the synchronization on time is difficult to achieve by manual control, and the generation time of the arcs is inconvenient to be accurately controlled.
SUMMERY OF THE UTILITY MODEL
To the not enough of prior art, the utility model discloses a can produce the trouble arc generation equipment of multiple electric arc automatically.
The utility model discloses the technical scheme who adopts as follows:
a fault arc generating device capable of automatically generating a plurality of arcs comprises at least one arc generating device and an arc control device for controlling the arc generating device; the arc generating device comprises a bottom plate, a first arc generating structure and a second arc generating structure; the first arc generating structure is fixed at the first end of the bottom plate through a fixing structure; a motor bracket is fixed at the second end of the bottom plate; the stepping motor is fixed on the motor bracket; the second arc generating structure is fixed on a shaft of the stepping motor through a guide structure; the guide structure converts the rotation of the shaft of the stepping motor into linear motion; generating an arc between the first arc generating structure and the second arc generating structure when the first arc generating structure and the second arc generating structure are in proximity or contact; and the signal output end of the electric arc control device controls the stepping motor.
The further technical proposal is that the guide structure comprises a ball screw pair; the ball screw pair comprises a nut and a screw rod; the screw is fixedly connected with a shaft of the stepping motor; the second arc generating structure is fixed to the nut.
The further technical scheme is that the electric arc generating device is a parallel electric arc generator, a series alternating current electric arc generator and/or a series direct current electric arc generator.
The further technical proposal is that the electric arc generating device is a parallel electric arc generator; the first arc generating structure comprises a wire clamp; the second arc generating structure comprises a blade holder and a blade secured to a first side of the blade holder; the nut is fixed to the second side of the tool holder.
The further technical scheme is that the guide structure comprises a guide rod bracket and a guide rod penetrating through the guide rod bracket; the first end of the guide rod is fixed on the second side of the tool rest; the second end of the guide rod penetrates through the motor bracket and is supported on the motor bracket.
The further technical proposal is that the electric arc generating device is a series connection alternating current electric arc generator; the first arc generating structure is a carbon rod; the second arc generating structure is a first contact pin.
The further technical proposal is that the electric arc generating device is a series direct current electric arc generator; the first arc generating structure is a copper bar; the second arc generating structure is a second contact pin; and a sleeve is sleeved outside the copper rod and the second contact pin.
The further technical proposal is that the guide structure comprises a guide rod bracket; the guide rod penetrates through the guide rod bracket and can move relative to the guide rod bracket; the nut is fixed at the first end of the guide rod; the second arc generating structure is fixed at the second end of the guide rod; a guide groove is formed in the side wall of the guide rod; when the guide rod moves relative to the guide rod bracket, the end of a guide screw fixed to the guide rod bracket moves in the guide groove.
The further technical proposal is that each electric arc generating device is provided with a corresponding electric arc control device; the arc control device comprises a signal input device and a driving chip; the signal output end of the signal input device is connected with the signal input end of the driving chip; and the signal output end of the driving chip controls the stepping motor.
The further technical scheme is that the model of the driving chip is TB6560; the model of the stepping motor is 42HS3404A4.
The beneficial effects of the utility model are as follows:
1. the utility model discloses electric arc to the difference produces the device and carries out unified structural change for first electric arc produces the distance between structure and the second electric arc production structure and can pass through step motor unified control, and cooperation driver chip just can the production of different kind electric arcs of automatic control, and then conveniently takes notes data and the situation that different electric arcs produced, is convenient for produce to the electric arc fault and experiment and research.
2. The utility model discloses a direction structure converts step motor's rotary motion into linear motion, and then step motor can control first electric arc and produce the structure and be close, contact or keep away from with second electric arc, also can control first electric arc and produce the distance between the structure and the second electric arc production structure. When the first arc generating structure and the second arc generating structure are in proximity or contact, an arc is generated between the first arc generating structure and the second arc generating structure. The utility model discloses can set up parallelly connected arc generator, series connection arc generator, direct current arc generator, carry out unified control through driver chip, can the experimental condition of accurate control, also conveniently control the production time of each electric arc, simultaneously, also conveniently reappear the production condition of trouble electric arc.
3. The utility model discloses a first electric arc produces structure and second electric arc and produces structure itself also easy to assemble, dismantle and change, when first electric arc produces between structure and the second electric arc production structure because the production of electric arc causes the damage, change that can be timely at any time facilitates the use.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a schematic structural diagram of the parallel arc generator of the present invention.
Fig. 3 is a schematic structural diagram of the series ac arc generator of the present invention.
Fig. 4 is a schematic structural diagram of the series dc arc generator of the present invention.
Fig. 5 is a schematic diagram of the middle driving chip and the stepping motor of the present invention.
In the figure: 1. a base plate; 2. a screw; 3. a fixed structure; 4. a motor bracket; 5. a stepping motor; 6. a screw; 7. a nut; 8. a guide bar support; 9. a guide rod; 101. wire clamps; 102. a tool holder; 103. a blade; 104. fastening a knob; 105. a splint; 106. a rotating shaft; 201. a carbon rod; 202. a first contact pin; 203. a first guide screw; 301. a copper bar; 302. a second contact pin; 303. a sleeve; 304. and a second guide screw.
Detailed Description
The following describes embodiments of the present invention with reference to the drawings.
Fig. 1 is a schematic view of the overall structure of the present invention. As shown in fig. 1, the arc fault generating apparatus that can automatically generate a plurality of arcs includes at least one arc generating device and an arc control device for controlling the arc generating device. Different kinds of arc generating devices are used to generate different kinds of arcs. To facilitate detection, recording and testing of data on the generation of the arc and the conditions of the generation environment. The arc generating device is one or more of a parallel arc generator, a series alternating current arc generator and a series direct current arc generator, and is used for adapting to different fault arc test standards. Fig. 2 is a schematic structural diagram of the parallel arc generator of the present invention. Referring to fig. 2, the arc generating apparatus of the present invention includes a base plate 1, a first arc generating structure, and a second arc generating structure. The first arc generating structure is fixed to a first end of the base plate 1 by a fixing structure 3. A motor bracket 4 is fixed at the second end of the bottom plate 1. The stepping motor 5 is fixed to the motor bracket 4. The second arc generating structure is fixed to the shaft of the stepping motor 5 through a guide structure. The guide structure converts the rotation of the shaft of the stepping motor 5 into a linear motion.
The signal input device can send a control signal to the driving chip, the driving chip controls the working state and working parameters of the stepping motor 5, when the stepping motor 5 works, the shaft of the stepping motor 5 rotates, the guide structure converts the rotary motion into linear motion, and then the stepping motor 5 can control the first electric arc generation structure and the second electric arc generation structure to approach, contact or keep away from each other and also can control the distance between the first electric arc generation structure and the second electric arc generation structure. When the first arc generating structure and the second arc generating structure are in proximity or contact, an arc is generated between the first arc generating structure and the second arc generating structure.
The working states of the arc generating devices are respectively controlled, and the distance between the first arc generating structure and the second arc generating structure is specifically controlled, so that the generation of different types of arcs can be automatically controlled, the data and the conditions of different arcs can be conveniently recorded, and the arc fault generation can be conveniently tested and researched.
Fig. 2 shows an embodiment of an arc generating device. As shown in fig. 2, the arc generating means is a parallel arc generator. The first arc generating structure is a wire clamp 101. The fixing structure 3 is fixed to a first end of the base plate 1 by means of screws 2. The clip 101 is fixed to the fixing structure 3. The second arc generating structure includes a tool post 102, and a chucking plate 105 is provided on the tool post 102, the chucking plate 105 sandwiching the blade 103. The blade 103 can be rotated about the rotation axis 106 to adjust the angle of the blade 103, and finally the blade 103 is fixed by the tightening knob 104. The nut 7 is fixed to the second side of the tool holder 102.
The guide structure comprises a ball screw pair. The ball screw pair includes a nut 7 and a screw 6. The screw 6 is fixedly connected to the shaft of the stepping motor 5. The second arc generating structure is fixed to the nut 7. The guide structure further comprises a guide bar support 8 and a guide bar 9 passing through the guide bar support 8. The first end of the guide rod 9 is fixed to the second side of the tool holder 102. The second end of the guide rod 9 passes through the motor bracket 4 and is supported to the motor bracket 4.
When the stepping motor 5 is started to operate, the shaft of the stepping motor 5 rotates, the screw 6 fixed to the shaft of the stepping motor 5 rotates along with the shaft, the nut 7 matched with the screw 6 linearly displaces, the tool holder 102 fixed together with the nut 7 linearly displaces, and the blade 103 fixed to the tool holder 102 linearly displaces. The wire is secured to the clamp 101 and when the blade 103 is brought so as to chop the wire secured to the clamp 101, a short circuit occurs between the blade 103 and the wire to create a parallel arc. If no arc is required, the stepper motor 5 can be controlled to rotate in reverse, and the blade 103 and wire can be quickly replaced as needed.
During the linear displacement of the tool holder 102, the guide rod holder 8 and the motor holder 4 are fixed to the base plate 1, and the guide rod 9 is movable relative to the guide rod holder 8 and the motor holder 4. The first end of the guide rod 9 is fixed to the tool holder 102. Due to the limitation of the guide rod bracket 8 and the motor bracket 4, the direction of the guide rod 9 cannot be randomly changed during movement, and the accuracy of the contact position of the blade 103 and the electric wire is ensured.
Fig. 3 is a schematic structural diagram of the series ac arc generator of the present invention. As shown in fig. 3, the arc generating means is a series ac arc generator. The first arc generating structure is a carbon rod 201. The fixing structure 3 is fixed to a first end of the base plate 1 by means of screws 2. The carbon rod 201 passes through the fixing structure 3 and is fixed by a fastening screw. The second arc generating structure is a first contact pin 202. The guide structure comprises a ball screw pair. The ball screw pair includes a nut 7 and a screw 6. The screw 6 is fixedly connected to the shaft of the stepping motor 5. The guide structure further comprises a guide bar support 8. The guide rod 9 passes through the guide rod holder 8 and is movable relative to the guide rod holder 8. The nut 7 is fixed to a first end of a guide rod 9. The second arc generating structure is fixed to the second end of the guide rod 9 and is fixed to the nut 7 through the guide rod 9. A guide groove is provided in a side wall of the guide bar 9. When the guide bar 9 moves relative to the guide bar support 8, the tip of the first guide screw 203 fixed to the guide bar support 8 moves in the guide groove.
When the stepping motor 5 is turned on, the shaft of the stepping motor 5 rotates, the screw 6 fixed to the shaft of the stepping motor 5 rotates along with the shaft, the nut 7 fitted to the screw 6 linearly displaces, the guide rod 9 fixed to the nut 7 linearly displaces, and the first contact pin 202 fixed to the guide rod 9 linearly displaces. When the first contact pin 202 is brought into contact with the carbon rod 201, a series arc is generated between the first contact pin 202 and the carbon rod 201. If arc generation is not required, the stepping motor 5 may be controlled to rotate in reverse, and the carbon rod 201 and the first contact pin 202 may be rapidly replaced as needed.
When the guide rod 9 moves linearly, the guide rod support 8 is fixed on the base plate 1, the first guide screw 203 fixed on the guide rod support 8 is relatively fixed, the guide rod 9 can move relative to the guide rod support 8, and in the moving process of the guide rod 9, the end of the first guide screw 203 moves in the guide groove formed in the side wall of the guide rod 9, so that the moving range of the guide rod 9 is limited, the linear movement is kept and the random rotation is avoided, and the accurate contact between the first contact pin 202 and the carbon rod 201 is ensured.
Fig. 4 is a schematic structural diagram of the series dc arc generator of the present invention. As shown in fig. 4, the dc arc generators are connected in series. As shown in fig. 4, the first arc generating structure is a copper rod 301. The fixing structure 3 is fixed to a first end of the base plate 1 by means of screws 2. The copper rod 301 passes through the fixing structure 3 and is fixed by fastening screws. The second arc generating structure is a second contact pin 302. A sleeve 303 is provided around the copper rod 301 and the second contact pin 302. The second contact pin 302 does not come out of the range of the sleeve 303 during the movement. The method of movement of the second stylus 302 is the same as in the embodiment shown in figure 3. When the guide bar 9 moves relative to the guide bar support 8, the end of the second guide screw 304 fixed to the guide bar support 8 moves in the guide groove.
Referring to fig. 1 to 4, the embodiment may simultaneously include three kinds of arc generating devices, each of which is provided with a corresponding arc control device. The arc control device comprises a signal input device and a driving chip. The signal output end of the signal input device is connected with the signal input end of the driving chip. The signal input means may be a button or other input signal. The three types of arc generating devices per se are common prior art and are not described in detail. The signal output end of the driving chip controls the stepping motor 5. Fig. 5 is a schematic diagram of the middle driving chip and the stepping motor of the present invention. As shown in fig. 5, the model of the driver chip may be TB6560. The model of the stepping motor 5 can be 42HS3404A4. The driver chip model TB6560, itself for controlling the stepping motor 5, includes excitation parameter setting ports M1, M2, attenuation mode setting ports DCY1, DCY2, and half-current torque setting ports TQ1, TQ2. The differential output signal ports OA1, OA2, OB1, OB2 of the driver chip are connected to the stepper motor 5. The program that driver chip itself controlled step motor is driver chip from the area, not the utility model discloses a protection scope.
The arc generating device can be controlled to generate a specific type of fault arc at a specific time according to the requirement by controlling the signal input device, so that the generation data and the generation state of the arc can be recorded and researched.
The above description is for the purpose of explanation and not limitation of the invention, which is defined in the claims, and any modifications may be made without departing from the basic structure of the invention.
Claims (10)
1. A fault arc generating device capable of automatically generating a plurality of arcs is characterized by comprising at least one arc generating device and an arc control device for controlling the arc generating device; the arc generating device comprises a bottom plate (1), a first arc generating structure and a second arc generating structure; the first arc generating structure is fixed at the first end of the bottom plate (1) through a fixing structure (3); a motor bracket (4) is fixed at the second end of the bottom plate (1); the stepping motor (5) is fixed on the motor bracket (4); the second arc generating structure is fixed on a shaft of the stepping motor (5) through a guide structure; the guide structure converts the rotation of the shaft of the stepping motor (5) into linear motion; generating an arc between the first arc generating structure and the second arc generating structure when the first arc generating structure and the second arc generating structure are in proximity or contact; and the signal output end of the electric arc control device controls the stepping motor (5).
2. The apparatus of claim 1, wherein the guide structure comprises a ball screw pair; the ball screw pair comprises a nut (7) and a screw (6); the screw (6) is fixedly connected with a shaft of the stepping motor (5); the second arc generating structure is fixed to the nut (7).
3. The arc fault generating apparatus capable of automatically generating multiple arcs according to claim 2, wherein the arc generating means is a parallel arc generator, a series ac arc generator and/or a series dc arc generator.
4. The arc fault generating apparatus capable of automatically generating multiple arcs according to claim 3, wherein the arc generating means is a parallel arc generator; the first arc generating structure comprises a wire clamp (101); the second arc generating structure comprises a blade holder (102) and a blade (103) secured to a first side of the blade holder (102); the nut (7) is fixed to a second side of the tool holder (102).
5. The arc fault generating device capable of automatically generating multiple arcs according to claim 4, wherein the guiding structure comprises a guiding rod support (8) and a guiding rod (9) passing through the guiding rod support (8); the first end of the guide rod (9) is fixed on the second side of the tool rest (102); the second end of the guide rod (9) penetrates through the motor support (4) and is supported on the motor support (4).
6. The arc fault generating apparatus capable of automatically generating multiple arcs according to claim 3, wherein the arc generating means is a series ac arc generator; the first arc generating structure is a carbon rod (201); the second arc generating structure is a first contact pin (202).
7. The arc fault generating apparatus capable of automatically generating multiple arcs according to claim 3, wherein the arc generating device is a series direct current arc generator; the first arc generating structure is a copper bar (301); the second arc generating structure is a second contact pin (302); a sleeve (303) is sleeved outside the copper rod (301) and the second contact pin (302).
8. Fault arc-generating device capable of automatically generating a multiplicity of arcs according to claim 6 or 7, characterised in that the guide structure comprises a guide rod holder (8); the guide rod (9) penetrates through the guide rod bracket (8) and can move relative to the guide rod bracket (8); the nut (7) is fixed at the first end of the guide rod (9); the second arc generating structure is fixed at the second end of the guide rod (9); a guide groove is formed in the side wall of the guide rod (9); when the guide rod (9) moves relative to the guide rod bracket (8), the end of a guide screw fixed to the guide rod bracket (8) moves in the guide groove.
9. The arc fault generating apparatus capable of automatically generating multiple arcs according to claim 1, wherein each of the arc generating devices is provided with a corresponding arc control device; the arc control device comprises a signal input device and a driving chip; the signal output end of the signal input device is connected with the signal input end of the driving chip; and the signal output end of the driving chip controls the stepping motor (5).
10. The arc fault generating apparatus capable of automatically generating multiple arcs according to claim 9, wherein the driving chip has a model number of TB6560; the model of the stepping motor (5) is 42HS3404A4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221482357.4U CN217820528U (en) | 2022-06-13 | 2022-06-13 | Fault arc generating equipment capable of automatically generating multiple arcs |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221482357.4U CN217820528U (en) | 2022-06-13 | 2022-06-13 | Fault arc generating equipment capable of automatically generating multiple arcs |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217820528U true CN217820528U (en) | 2022-11-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221482357.4U Active CN217820528U (en) | 2022-06-13 | 2022-06-13 | Fault arc generating equipment capable of automatically generating multiple arcs |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217820528U (en) |
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2022
- 2022-06-13 CN CN202221482357.4U patent/CN217820528U/en active Active
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