CN212115185U - Protection mechanism for three-level inverter - Google Patents
Protection mechanism for three-level inverter Download PDFInfo
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- CN212115185U CN212115185U CN202020751399.8U CN202020751399U CN212115185U CN 212115185 U CN212115185 U CN 212115185U CN 202020751399 U CN202020751399 U CN 202020751399U CN 212115185 U CN212115185 U CN 212115185U
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Abstract
The utility model discloses a protection mechanism for three level inverter, including two lagging that are parallel arrangement, move and connect the frame and detain the fender mechanism, the top is provided with between two lagging and moves and connect the frame, just lagging middle part top is provided with hollow movable groove. The utility model has the advantages that: the bottom of the blocking mechanism is buckled to the edge of the three-level inverter to protect the three-level inverter, so that the three-level inverter is prevented from being scratched or corroded and damaged by external devices or dust and liquid, the stability of the three-level inverter in work is improved, the service life of the three-level inverter is prolonged, the bottom of the blocking mechanism is connected to the edge of the three-level inverter through the first rubber pad and the second rubber pad, and the periphery of the three-level inverter is well sealed; in the process that the protection mechanism encloses the three-level inverter for protection, the fan works to radiate the three-level inverter, so that the working stability of the three-level inverter is improved.
Description
Technical Field
The utility model relates to a protection mechanism specifically is a protection mechanism for three level inverter, belongs to three level inverter protection mechanism application technical field.
Background
The three-level inverter is a pulse width modulation circuit based on three fixed levels, is frequently applied in the field of power electronics, and has the advantages of large output capacity, high output voltage, small current harmonic content and the like.
The three-level inverter protection mechanism is a component used for preventing the three-level inverter from being damaged by external interference during working, and is often used in cooperation with the three-level inverter.
The existing protection mechanism of the three-level inverter still has a lot of defects when in use, the existing protection mechanism does not have the functions of isolating liquid, isolating dust and preventing blocking of the three-level inverter, so that the three-level inverter is easily scratched by external devices or rusted by dust and liquid when in work, the damage of the three-level inverter seriously affects the stability and the service life of the three-level inverter when in work, the protection mechanism has poor sealing performance on the periphery of the three-level inverter, the position of the enclosure protection of the three-level inverter is not accurate and suitable enough, the protection mechanism only can carry out enclosure protection on the three-level inverter with the same thickness and area, the range of the protection mechanism which can work and adapt is small, and the protection mechanism easily causes scraping and abrasion on the three-level inverter when in use.
SUMMERY OF THE UTILITY MODEL
The purpose of the utility model is to solve the problem that the existing protection mechanism does not have the functions of isolating liquid, isolating dust and preventing gear for the three-level inverter, so that the three-level inverter is easy to be rubbed and bumped by external devices or rusted by dust and liquid during working, the three-level inverter is damaged, and the stability and the service life of the three-level inverter during working are seriously influenced; the sealing performance of the protection mechanism to the periphery of the three-level inverter is poor; the position of the enclosure protection of the three-level inverter is not accurate and appropriate enough; the protection mechanism can only carry out enclosure protection on three-level inverters with the same thickness and area, and the range of work adaptation of the protection mechanism is small; and the protection mechanism is easy to cause scraping and abrasion to the three-level inverter when in use, thereby providing the protection mechanism for the three-level inverter.
The purpose of the utility model can be realized by the following technical scheme: a protection mechanism for a three-level inverter comprises two sleeve plates which are arranged in parallel, a moving and connecting frame and a buckling and blocking mechanism, wherein the moving and connecting frame is arranged above the two sleeve plates, a hollow movable groove is arranged above the middle part of the sleeve plate, a plurality of convex teeth are arranged on the inner wall of one side of the movable groove, the bottoms of the two ends of the transfer frame are respectively provided with a first motor, the two sides of the first motor are respectively vertically provided with a clamping plate, one end of the top of the transfer frame is provided with a second motor, and one end of the second motor is rotationally connected with a screw rod, a sleeve block is screwed on the screw rod, a movable frame is welded at the upper end of the sleeve block, a micro oil cylinder is vertically arranged at the bottom of the movable frame, and the lower part of the micro oil cylinder is connected with a third motor through a hydraulic shaft in an extending way, the two ends of the third motor are connected with a turning plate through a first rotating shaft in a rotating way, a fourth motor is vertically arranged at the bottom of the turning and adjusting plate, and a buckling and blocking mechanism is rotationally connected below the fourth motor through a second rotating shaft;
the lower part of the first motor is rotatably connected with a gear through a rotating shaft, and the gear is meshed with the convex teeth;
the two sides of the buckling and blocking mechanism are respectively provided with a side baffle plate with a rectangular structure, the upper end of the middle part between the two side baffle plates is horizontally provided with an inserting frame with a hollow rectangular structure, the two ends of the inserting frame are respectively provided with an inserting groove, a sliding partition plate with an inverted L-shaped structure is sleeved in each of the two inserting grooves, and the two sides of the upper end surface of the inserting frame are respectively provided with a hollow sliding groove;
the fan is characterized in that first rubber pads are arranged at the bottoms of the side baffles, second rubber pads are arranged at the bottoms of the two sliding partition plates, and the fan is sleeved in the middle of each side baffle in a penetrating mode.
The utility model discloses a further technological improvement lies in: the lagging bottom equidistant sets up a plurality of leg, and move the first motor that connects frame both sides bottom and be connected to two lagging tops respectively, and the splint of first motor both sides are pasted respectively and are connected to the lagging both sides lateral wall, one of them splint inner wall is provided with the buckle that the cross-section is T shape structure, and lagging one side lateral wall is provided with the hollow catching groove with buckle looks adaptation, the buckle is connected to in the catching groove, guarantee that miniature hydro-cylinder is promoting to detain when keeping off mechanism downward lid closes three level inverter edge, splint and lagging can not take place to break away from, and catching groove length and lagging length looks adaptation.
The utility model discloses a further technological improvement lies in: the third motor is located hydraulic shaft bottom, and second spiral shaft bottom is connected to and inserts frame up end center department.
The utility model discloses a further technological improvement lies in: the inside screw hole that is provided with hollow and lead screw looks adaptation of cover piece, and on the screw hole passed through the screw thread spiro union to the lead screw, the second motor all is swing joint through lead screw and cover piece, movable frame, and the second motor drives the lead screw rotatory, and the lead screw passes through the screw action and drives movable frame and detain fender mechanism back-and-forth movement regulation, afterwards, miniature hydro-cylinder drive hydraulic shaft drives detains fender mechanism and moves down, detains three-level inverter edge through detaining fender mechanism bottom, encloses to keep off the protection to three-level inverter.
The utility model discloses a further technological improvement lies in: two equal vertical spiral shell axle that is provided with in slide separator up end middle part one side, and the spiro union has the helicoidal on the spiral shell axle, and two spiral shell axles run through two spouts respectively, through detaining the spiral shell axle that slides on the frame of inserting of keeping off the mechanism, the spiral shell axle slides in the spout, will slide the baffle and slide the regulation from inside and outside in the slot of inserting the frame, change and detain the fender area of enclosing of mechanism to three level inverter, revolve the helicoidal of twisting clockwise, will slide the baffle and insert the frame and be connected fixedly.
The utility model discloses a further technological improvement lies in: the bottom of the jack is provided with a photoelectric sensor, the photoelectric sensor is in communication connection with a PLC (programmable logic controller) arranged inside the transfer frame, the position of the three-level inverter is detected through the photoelectric sensor, and the PLC controls a part on the mechanism to drive the buckling and blocking mechanism to move above the three-level inverter so as to cover and protect the three-level inverter.
The utility model discloses a further technological improvement lies in: two sliding partition plates are symmetrically arranged, the thickness of the first rubber pad is equal to that of the second rubber pad, and the sealing performance of the buckling and blocking mechanism for the edge pressing protection of the three-level inverter is better.
The utility model discloses a further technological improvement lies in: the using method of the mechanism specifically comprises the following steps:
the method comprises the following steps: sliding a screw shaft on an insertion frame of the buckling and blocking mechanism, sliding the screw shaft in a sliding groove, adjusting a sliding partition plate in and out of a slot of the insertion frame in a sliding manner, changing the area of the buckling and blocking mechanism for enclosing the three-level inverter, and then screwing a screw ring clockwise to fix the sliding partition plate;
step two: the two sleeve plates are welded on a circuit board provided with a three-level inverter through welding pins at the bottom, the two sleeve plates are respectively welded on two sides of the three-level inverter, and the first motor drives the gear to roll in the movable groove to drive the blocking mechanism in the middle of the moving and connecting frame to move and adjust to the position above the three-level inverter;
step three: the second motor drives the lead screw to rotate, the lead screw drives the movable frame and the buckling and blocking mechanism to move back and forth through a thread effect to adjust, the fourth motor drives the buckling and blocking mechanism to rotate through a second rotating shaft to adjust the buckling and blocking protection position of the three-level inverter, the micro oil cylinder drives the hydraulic shaft to drive the buckling and blocking mechanism to move downwards, the edge of the three-level inverter is buckled through the bottom of the buckling and blocking mechanism, and the three-level inverter is protected in a surrounding and blocking mode.
Compared with the prior art, the beneficial effects of the utility model are that:
1. when the utility model is used, two sleeve plates are welded on a circuit board provided with a three-level inverter through welding feet at the bottom, the two sleeve plates are respectively welded at two sides of the three-level inverter, a first motor drives a gear to roll in a movable groove to drive a buckling mechanism at the middle part of a moving frame to move and adjust to the position above the three-level inverter, a second motor drives a lead screw to rotate, the lead screw drives the movable frame and the buckling mechanism to move back and forth through the screw thread action to adjust, then, a micro oil cylinder drives a hydraulic shaft to drive the buckling mechanism to move downwards, the edge of the three-level inverter is buckled through the bottom of the buckling mechanism, the three-level inverter is enclosed and protected, the three-level inverter is prevented from being scratched or corroded and damaged by external devices or dust liquid, the stability and the service life of the three-level inverter during working are improved, and the bottom of the buckling mechanism is connected to the edge of the, not only has good sealing effect on the periphery of the three-level inverter, but also ensures that the mechanism can not cause rubbing damage to the three-level inverter and the circuit board.
2. The first motor drives the gear to roll in the movable groove, the gear is buckled to be moved and adjusted, the second motor drives the lead screw to rotate, the lead screw drives the gear to be buckled to move back and forth through the screw thread effect, and the fourth motor drives the gear to be buckled to be adjusted in a rotating mode through the second rotating shaft and keeps off the protection position of the three-level inverter, the gear blocking position of the three-level inverter is accurate and suitable, the use flexibility is guaranteed, the micro oil cylinder drives the gear blocking mechanism to be movably adjusted in the vertical direction through the hydraulic shaft, and the mechanism is guaranteed to be capable of protecting the three-level inverter with different thicknesses.
3. Through detaining the spiral shell axle that slides on inserting the frame that keeps off the mechanism, the spiral shell axle slides in the spout, slide the baffle and adjust from inserting the slot of frame inside and outside sliding, it keeps off the area to enclosing of three level inverter to change to detain the mechanism, guarantee that this mechanism can enclose the fender protection to three level inverter of different area sizes, improve the adaptation scope of this mechanism, and enclose the in-process that keeps off the protection at this mechanism to three level inverter, the fan work dispels the heat to three level inverter, improved the stability of three level inverter work.
Drawings
In order to facilitate understanding for those skilled in the art, the present invention will be further described with reference to the accompanying drawings.
Fig. 1 is a schematic view of the overall three-dimensional structure of the present invention.
Fig. 2 is a front view of the first motor of the present invention.
Fig. 3 is an enlarged schematic view of a region a in fig. 1 according to the present invention.
Fig. 4 is a schematic view of the structure of the movable frame of the present invention.
Fig. 5 is a schematic view of the structure of the buckle mechanism of the present invention.
Fig. 6 is a schematic view of the structure of the insertion frame of the present invention.
Fig. 7 is a schematic view of the sliding partition plate of the present invention.
In the figure: 1. sheathing; 2. a movable groove; 3. a convex tooth; 4. welding feet; 5. moving and connecting the frame; 6. a first motor; 601. a gear; 7. a splint; 8. a second motor; 9. a screw rod; 10. a movable frame; 11. a micro oil cylinder; 12. a hydraulic shaft; 13. a third motor; 14. a first rotating shaft; 15. turning and adjusting the plate; 16. a fourth motor; 17. a second rotating shaft; 18. a blocking mechanism; 19. sleeving blocks; 20. a silk hole; 21. a side dam; 22. a first rubber pad; 23. inserting a frame; 24. a sliding partition plate; 25. a second rubber pad; 26. a chute; 27. a screw shaft; 28. a coil; 29. a fan; 30. and (4) a slot.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
Referring to fig. 1-7, a protection mechanism for a three-level inverter comprises two casing plates 1, a transfer frame 5 and a blocking mechanism 18, which are arranged in parallel, wherein the transfer frame 5 is arranged above the two casing plates 1, a hollow movable groove 2 is arranged above the middle part of the casing plate 1, a plurality of convex teeth 3 are arranged on the inner wall of one side of the movable groove 2, the bottoms of the two ends of the transfer frame 5 are respectively provided with a first motor 6, the two sides of the first motor 6 are respectively and vertically provided with a clamping plate 7, one end of the top part of the transfer frame 5 is provided with a second motor 8, one end of the second motor 8 is rotatably connected with a screw rod 9, a sleeve block 19 is screwed on the screw rod 9, the upper end of the sleeve block 19 is welded with a movable frame 10, the bottom of the movable frame 10 is vertically provided with a micro oil cylinder 11, the lower part of the micro oil cylinder 11 is connected with a third motor 13 through a hydraulic shaft 12 in an extending manner, the two ends of the third, a fourth motor 16 is vertically arranged at the bottom of the turning plate 15, and a gear-buckling mechanism 18 is rotatably connected below the fourth motor 16 through a second rotating shaft 17;
wherein, a gear 601 is rotatably connected below the first motor 6 through a rotating shaft, and the gear 601 is meshed with the convex teeth 3;
both sides of the buckling and blocking mechanism 18 are provided with side baffles 21 with rectangular structures, the upper end of the middle part between the two side baffles 21 is horizontally provided with an insertion frame 23 with a hollow rectangular structure, both ends of the insertion frame 23 are provided with insertion slots 30, the two insertion slots 30 are respectively sleeved with a sliding partition plate 24 with an inverted L-shaped structure, and both sides of the upper end surface of the insertion frame 23 are provided with hollow sliding chutes 26;
wherein, the bottom of the side baffle 21 is provided with a first rubber pad 22, and the bottoms of the two sliding partition plates 24 are both provided with a second rubber pad 25, and the middle part of the side baffle 21 is sleeved with a fan 29 in a penetrating manner.
The equidistant a plurality of leg 4 that sets up in 1 bottom of lagging, and move the first motor 6 that connects 5 both sides bottoms and be connected to two lagging 1 tops respectively, and the splint 7 of first motor 6 both sides is attached to 1 both sides lateral wall of lagging respectively, one of them splint 7 inner wall is provided with the buckle that the cross-section is T shape structure, and 1 side lateral wall of lagging is provided with the hollow catching groove with buckle looks adaptation, the buckle is connected to in the catching groove, guarantee that miniature hydro-cylinder 11 is promoting to detain that 18 lower covers of mechanism closes three level inverter edges, splint 7 can not take place to break away from with lagging 1, and catching groove length and lagging 1 length looks adaptation.
The third motor 13 is located at the bottom of the hydraulic shaft 12, and the bottom of the second rotating shaft 17 is connected to the center of the upper end face of the inserting frame 23.
The inside screw hole 20 that is provided with hollow and lead screw 9 looks adaptation of cover block 19, and screw hole 20 passes through the screw thread spiro union to lead screw 9 on, second motor 8 passes through lead screw 9 and cover block 19, movable frame 10 all is swing joint, second motor 8 drives the lead screw 9 rotatory, lead screw 9 drives movable frame 10 and detains fender mechanism 18 back-and-forth movement regulation through the screw thread effect, afterwards, miniature hydro-cylinder 11 drive hydraulic shaft 12 drives and detains fender mechanism 18 downstream, detain three level inverter edge through detaining fender mechanism 18 bottom, enclose to keep off the protection to three level inverter.
The two sliding partition plates 24 are vertically provided with screw shafts 27 on one side of the middle of the upper end faces of the two sliding partition plates 24, the screw rings 28 are screwed on the screw shafts 27, the two screw shafts 27 penetrate through the two sliding grooves 26 respectively, the sliding partition plates 24 are adjusted by sliding inside and outside the inserting grooves 30 of the inserting frames 23 through the sliding screw shafts 27 on the inserting frames 23 of the buckling and blocking mechanisms 18, the blocking area of the buckling and blocking mechanisms 18 for the three-level inverter is changed, the screw rings 28 are screwed clockwise, and the sliding partition plates 24 and the inserting frames 23 are connected and fixed.
The bottom of the jack 23 is provided with a photoelectric sensor, the photoelectric sensor is in communication connection with a PLC (programmable logic controller) arranged inside the transfer frame 5, the position of the three-level inverter is detected through the photoelectric sensor, and the PLC controls a part on the mechanism to drive the buckling and blocking mechanism 18 to move above the three-level inverter so as to cover and protect the three-level inverter.
The two sliding partition plates 24 are symmetrically arranged, and the thicknesses of the first rubber pad 22 and the second rubber pad 25 are equal, so that the sealing performance of the buckling and blocking mechanism 18 for the edge pressing protection of the three-level inverter is better.
The using method of the mechanism specifically comprises the following steps:
the method comprises the following steps: sliding the screw shaft 27 on the insertion frame 23 of the blocking mechanism 18, sliding the screw shaft 27 in the sliding groove 26, adjusting the sliding partition plate 24 to slide from the inside to the outside in the slot 30 of the insertion frame 23, changing the blocking area of the blocking mechanism 18 to the three-level inverter, and then screwing the helicoid 28 clockwise to fix the sliding partition plate 24;
step two: the two sleeve plates 1 are welded on a circuit board provided with a three-level inverter through welding feet 4 at the bottom, the two sleeve plates 1 are respectively welded on two sides of the three-level inverter, and the first motor 6 drives the gear 601 to roll in the movable groove 2 to drive the blocking mechanism 18 in the middle of the moving-connecting frame 5 to move and adjust to the position above the three-level inverter;
step three: the second motor 8 drives the screw rod 9 to rotate, the screw rod 9 drives the movable frame 10 and the buckling and blocking mechanism 18 to move back and forth and adjust through a thread effect, the fourth motor 16 drives the buckling and blocking mechanism 18 to rotate through the second rotating shaft 17 to adjust the buckling and blocking protection position of the three-level inverter, the micro oil cylinder 11 drives the hydraulic shaft 12 to drive the buckling and blocking mechanism 18 to move downwards, the edge of the three-level inverter is buckled through the bottom of the buckling and blocking mechanism 18, and the three-level inverter is protected in a surrounding and blocking mode.
When the utility model is used, two sleeve plates 1 are welded on a circuit board provided with a three-level inverter through a welding foot 4 at the bottom, the two sleeve plates 1 are respectively welded at two sides of the three-level inverter, a first motor 6 drives a gear 601 to roll in a movable groove 2 to drive a buckling and blocking mechanism 18 at the middle part of a moving and connecting frame 5 to move and adjust to the upper part of the three-level inverter, a second motor 8 drives a screw rod 9 to rotate, the screw rod 9 drives a movable frame 10 and the buckling and blocking mechanism 18 to move and adjust back and forth through the screw thread action, then, a micro oil cylinder 11 drives a hydraulic shaft 12 to drive the buckling and blocking mechanism 18 to move downwards, the edge of the three-level inverter is buckled through the bottom part of the buckling and blocking mechanism 18, the three-level inverter is surrounded and blocked for protection, the three-level inverter is prevented from being scratched or corroded and damaged by external devices, the bottom of the blocking mechanism 18 is connected to the edge of the three-level inverter through the first rubber pad 22 and the second rubber pad 25, so that the mechanism not only has good sealing effect on the periphery of the three-level inverter, but also ensures that the mechanism cannot cause rubbing damage to the three-level inverter and a circuit board;
the first motor 6 drives the gear 601 to roll in the movable groove 2 to drive the buckling mechanism 18 to move and adjust, the second motor 8 drives the screw rod 9 to rotate, the screw rod 9 drives the buckling mechanism 18 to move back and forth and adjust through the screw thread effect, the fourth motor 16 drives the buckling mechanism 18 to rotate through the second rotating shaft 17 to adjust the buckling protection position of the three-level inverter, the buckling mechanism 18 is guaranteed to be more accurate and suitable for the blocking position of the three-level inverter, the use flexibility is guaranteed, the micro oil cylinder 11 drives the buckling mechanism 18 to move up and down through the hydraulic shaft 12 to adjust the height, and the mechanism is guaranteed to be capable of conducting blocking protection on the three-level inverters with different thicknesses;
through the sliding screw shaft 27 on the inserting frame 23 of the blocking mechanism 18, the screw shaft 27 slides in the sliding groove 26, the sliding partition plate 24 is adjusted in a sliding mode from the inside to the outside of the inserting groove 30 of the inserting frame 23, the blocking area of the blocking mechanism 18 for the three-level inverter is changed, the blocking protection of the mechanism for the three-level inverter with different areas can be guaranteed, the adaptive range of the mechanism is improved, in the blocking protection process of the mechanism for the three-level inverter, the fan works to radiate the three-level inverter, and the working stability of the three-level inverter is improved.
The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not exhaustive and do not limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.
Claims (7)
1. The utility model provides a protection machanism for three level inverter, includes that two are parallel arrangement's lagging (1), move and connect frame (5) and detain fender mechanism (18), its characterized in that: a moving frame (5) is arranged above the two sleeve plates (1), a hollow movable groove (2) is arranged above the middle of each sleeve plate (1), a plurality of convex teeth (3) are arranged on the inner wall of one side of each movable groove (2), first motors (6) are arranged at the bottoms of the two ends of each moving frame (5), clamping plates (7) are vertically arranged on the two sides of each first motor (6), a second motor (8) is arranged at one end of the top of each moving frame (5), one end of each second motor (8) is rotatably connected with a lead screw (9), a sleeve block (19) is screwed on each lead screw (9), a movable frame (10) is welded at the upper end of each sleeve block (19), a micro oil cylinder (11) is vertically arranged at the bottom of each movable frame (10), a third motor (13) is connected below each micro oil cylinder (11) in an extending mode through a hydraulic shaft (12), and turning and adjusting plates (15) are rotatably connected at the two ends of each third motor (13) through a first rotating shaft (, a fourth motor (16) is vertically arranged at the bottom of the turning and adjusting plate (15), and a blocking mechanism (18) is rotatably connected below the fourth motor (16) through a second rotating shaft (17);
wherein a gear (601) is rotatably connected below the first motor (6) through a rotating shaft, and the gear (601) is meshed with the convex teeth (3);
side baffles (21) with rectangular structures are arranged on two sides of the buckling and blocking mechanism (18), an inserting frame (23) with a hollow rectangular structure is horizontally arranged at the upper end of the middle part between the two side baffles (21), inserting slots (30) are arranged at two ends of the inserting frame (23), sliding partition plates (24) with inverted L-shaped structures are sleeved in the two inserting slots (30), and hollow sliding chutes (26) are arranged on two sides of the upper end surface of the inserting frame (23);
the fan comprises side baffles (21), wherein first rubber pads (22) are arranged at the bottoms of the side baffles (21), second rubber pads (25) are arranged at the bottoms of the two sliding partition plates (24), and a fan (29) penetrates through the middle of each side baffle (21).
2. The protection mechanism for the three-level inverter according to claim 1, wherein a plurality of welding feet (4) are arranged at the bottom of the sleeve plate (1) at equal intervals, the first motor (6) moving to the bottom of the two sides of the connecting frame (5) is connected to the upper side of the two sleeve plates (1) respectively, the clamping plates (7) at the two sides of the first motor (6) are attached to the side walls at the two sides of the sleeve plate (1) respectively, the inner wall of one clamping plate (7) is provided with a buckling plate with a T-shaped cross section, the side wall at one side of the sleeve plate (1) is provided with a hollow buckling groove matched with the buckling plate, and the length of the buckling groove is matched with the length of the sleeve plate (1).
3. A protection mechanism for a three-level inverter according to claim 1, characterized in that the third motor (13) is located at the bottom of the hydraulic shaft (12) and the bottom of the second rotary shaft (17) is connected to the center of the upper end face of the insert frame (23).
4. The protection mechanism for the three-level inverter according to claim 1, wherein a hollow screw hole (20) matched with the screw rod (9) is formed in the sleeve block (19), the screw hole (20) is screwed to the screw rod (9) through a thread, and the second motor (8) is movably connected with the sleeve block (19) and the movable frame (10) through the screw rod (9).
5. The protection mechanism for the three-level inverter according to claim 1, wherein a screw shaft (27) is vertically arranged on one side of the middle of the upper end surface of each of the two sliding partition plates (24), a screw coil (28) is screwed on each screw shaft (27), and the two screw shafts (27) respectively penetrate through the two sliding chutes (26).
6. The protection mechanism for the three-level inverter according to claim 1, wherein a photoelectric sensor is arranged at the bottom of the insertion frame (23), and the photoelectric sensor is in communication connection with a PLC (programmable logic controller) arranged inside the transfer frame (5).
7. A protection mechanism for a three-level inverter as claimed in claim 1, characterized in that the two sliding barriers (24) are symmetrically arranged and the first rubber pad (22) and the second rubber pad (25) have the same thickness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020751399.8U CN212115185U (en) | 2020-05-09 | 2020-05-09 | Protection mechanism for three-level inverter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020751399.8U CN212115185U (en) | 2020-05-09 | 2020-05-09 | Protection mechanism for three-level inverter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212115185U true CN212115185U (en) | 2020-12-08 |
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ID=73615980
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020751399.8U Expired - Fee Related CN212115185U (en) | 2020-05-09 | 2020-05-09 | Protection mechanism for three-level inverter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212115185U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111464055A (en) * | 2020-05-09 | 2020-07-28 | 马鞍山职业技术学院 | Protection mechanism for three-level inverter |
| CN112599153A (en) * | 2020-12-18 | 2021-04-02 | 深圳忆数存储技术有限公司 | Computer memory isolated operation equipment and isolated operation method thereof |
-
2020
- 2020-05-09 CN CN202020751399.8U patent/CN212115185U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111464055A (en) * | 2020-05-09 | 2020-07-28 | 马鞍山职业技术学院 | Protection mechanism for three-level inverter |
| CN111464055B (en) * | 2020-05-09 | 2024-06-07 | 马鞍山职业技术学院 | Protection mechanism for three-level inverter |
| CN112599153A (en) * | 2020-12-18 | 2021-04-02 | 深圳忆数存储技术有限公司 | Computer memory isolated operation equipment and isolated operation method thereof |
| CN112599153B (en) * | 2020-12-18 | 2021-06-18 | 深圳忆数存储技术有限公司 | Computer memory isolated operation equipment and isolated operation method thereof |
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