CN112735812A - DC-LINK direct current filter capacitor that photovoltaic wind power inverter used - Google Patents
DC-LINK direct current filter capacitor that photovoltaic wind power inverter used Download PDFInfo
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- CN112735812A CN112735812A CN202011489768.1A CN202011489768A CN112735812A CN 112735812 A CN112735812 A CN 112735812A CN 202011489768 A CN202011489768 A CN 202011489768A CN 112735812 A CN112735812 A CN 112735812A
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- 239000003990 capacitor Substances 0.000 title claims abstract description 64
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 31
- 230000007246 mechanism Effects 0.000 claims abstract description 17
- 229910052802 copper Inorganic materials 0.000 claims abstract description 15
- 239000010949 copper Substances 0.000 claims abstract description 15
- 238000001816 cooling Methods 0.000 claims abstract description 9
- 230000005540 biological transmission Effects 0.000 claims description 82
- 230000000087 stabilizing effect Effects 0.000 claims description 22
- 239000004065 semiconductor Substances 0.000 claims description 19
- 239000003381 stabilizer Substances 0.000 claims description 18
- 238000007789 sealing Methods 0.000 claims description 15
- 238000005096 rolling process Methods 0.000 claims description 10
- 229920000742 Cotton Polymers 0.000 claims description 7
- 210000002421 cell wall Anatomy 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims description 3
- 230000005570 vertical transmission Effects 0.000 claims description 2
- 239000002826 coolant Substances 0.000 claims 3
- 239000007788 liquid Substances 0.000 claims 3
- 239000011148 porous material Substances 0.000 claims 1
- 239000000110 cooling liquid Substances 0.000 abstract description 20
- 238000000034 method Methods 0.000 description 6
- 230000001681 protective effect Effects 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 238000005057 refrigeration Methods 0.000 description 3
- 238000000926 separation method Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
- H01G2/00—Details of capacitors not covered by a single one of groups H01G4/00-H01G11/00
- H01G2/08—Cooling arrangements; Heating arrangements; Ventilating arrangements
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
- H01G4/00—Fixed capacitors; Processes of their manufacture
- H01G4/002—Details
- H01G4/224—Housing; Encapsulation
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
- H01G4/00—Fixed capacitors; Processes of their manufacture
- H01G4/002—Details
- H01G4/228—Terminals
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
- H01G4/00—Fixed capacitors; Processes of their manufacture
- H01G4/32—Wound capacitors
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
- H01G4/00—Fixed capacitors; Processes of their manufacture
- H01G4/33—Thin- or thick-film capacitors
Abstract
The invention relates to the technical field of electronic and electrical equipment, and discloses a DC-LINK direct current filter capacitor for a photovoltaic wind power inverter, which comprises a bottom lining, wherein a capacitor core body is connected in the bottom lining through a cooling mechanism, an end cover is arranged at the upper end of the bottom lining, the upper end of the capacitor core body is arranged at the lower end of the end cover, pins are symmetrically connected on the capacitor core body, the other ends of the pins penetrate through the end cover and extend outwards, and the bottom lining and the end cover are connected through a locking mechanism; the cooling mechanism comprises a supporting disc matched with the bottom lining, the supporting disc is fixedly connected to the inner lining wall of the bottom lining close to the lower end, a copper plate is embedded in the center of the supporting disc, the capacitor core is arranged at the upper end of the copper plate, and cooling liquid is arranged in the bottom lining below the supporting disc. The DC-LINK direct current filter capacitor for the photovoltaic wind power inverter can solve the problems that the existing capacitor is required to be gradually adapted to a high-temperature working environment, and the capacitor is extremely easy to damage and inconvenient to maintain under the high-temperature and high-voltage environment for a long time.
Description
Technical Field
The invention relates to the technical field of electronic and electrical equipment, in particular to a DC-LINK direct current filter capacitor for a photovoltaic wind power inverter.
Background
The DC-Link capacitor has wide application, the capacitor is connected in parallel at the direct current side behind the rectifier bridge to play a role in filtering and stabilizing voltage, and because the circuit bound by the DC-Link capacitor is often too large and too small in current and voltage and unstable, the required capacity is high, people mostly adopt electrolytic capacitors for a long time, and because the electrolytic capacitors have the advantages of large capacity and small size of a single capacitor. As one of common electronic components, the capacitor itself also needs to adapt to a high-temperature working environment gradually, and the capacitor is very easy to damage and inconvenient to maintain when being in the high-temperature and high-voltage environment for a long time.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a DC-LINK direct current filter capacitor for a photovoltaic wind power inverter, which has the advantages of adaptability to a high-temperature working environment, difficulty in damage and easiness in maintenance, and solves the problems that the existing capacitor is required to gradually adapt to the high-temperature working environment, and the capacitor is extremely easy to damage and inconvenient to maintain under the high-temperature and high-pressure environment for a long time.
(II) technical scheme
In order to realize the purposes of adapting to a high-temperature working environment, not being easily damaged and being easy to maintain, the invention provides the following technical scheme: a DC-LINK direct current filter capacitor for a photovoltaic wind power inverter comprises a bottom lining, wherein a capacitor core body is connected in the bottom lining through a cooling mechanism, an end cover is arranged at the upper end of the bottom lining, the upper end of the capacitor core body is arranged at the lower end of the end cover, pins are symmetrically connected to the capacitor core body, the other ends of the pins penetrate through the end cover and extend outwards, and the bottom lining and the end cover are connected through a locking mechanism;
the cooling mechanism comprises a supporting plate matched with the bottom lining, the supporting plate is fixedly connected to the inner lining wall of the bottom lining close to the lower end position, a copper plate is embedded in the center of the supporting plate, the capacitor core is arranged at the upper end of the copper plate, cooling liquid is arranged in the bottom lining below the supporting plate, a plurality of copper cores are uniformly arranged on the annular side wall of the capacitor core at equal intervals, the lower end of each copper core penetrates through the supporting plate and extends into the cooling liquid, protective cotton is arranged in the bottom lining above the supporting plate, a temperature sensor, a controller, a humidity sensor and an alarm are fixedly connected to the inner lining wall of the bottom lining above the supporting plate, the capacitor core, the copper cores, the temperature sensor, the controller, the humidity sensor and the alarm are wrapped by the protective cotton, a semiconductor refrigerator is fixedly connected to the inner bottom of the bottom lining, and the hot end of the semiconductor refrigerator is arranged outside the bottom lining, the cold end of the semiconductor refrigerator is arranged in the cooling liquid, and the temperature sensor, the controller, the humidity sensor alarm and the semiconductor refrigerator are electrically connected through conducting wires.
Preferably, the locking mechanism comprises two transmission grooves, the two transmission grooves are symmetrically arranged on the annular side wall of the end cover along the vertical direction, the lower end of the end cover is provided with a locking groove, a transmission hole is arranged between the groove bottom of the transmission groove close to one end of the bottom lining and the groove wall of the locking groove, a matched locking column is inserted in the locking groove, one end of the locking column far away from the groove bottom of the locking groove penetrates through the notch of the locking groove and is fixedly connected to the upper end of the bottom lining, a locking block is connected in the transmission hole through a limiting assembly, a locking groove is arranged on the column wall of the locking column corresponding to the locking block, one end of the locking block close to the groove bottom of the locking groove is inserted in the locking groove, a transmission rod is hinged at the center of one end of the locking block far away from the groove bottom of the locking groove, and a transmission block is hinged at the other end of the transmission rod along the vertical transmission groove, the upper end fixedly connected with spring of transmission piece, the other end fixed connection of spring is on the top cell wall of transmission groove.
Preferably, the annular side wall of the end cover is sleeved with a transmission pipe, and one end of the transmission block, which is far away from the bottom of the transmission groove, penetrates through a notch of the transmission groove and is fixedly connected to the inner pipe wall of the transmission pipe.
Preferably, the limiting assembly comprises a sliding block with a T-shaped section, the sliding block is fixedly connected to the side wall of the position locking block close to one end of the transmission rod, a sliding groove with a T-shaped section is formed in the hole wall of the transmission hole corresponding to the position of the sliding block, and the sliding block is slidably connected to the sliding groove.
Preferably, the driving groove is internally and fixedly connected with a stabilizer bar along the vertical direction, the driving block is provided with a stabilizing hole corresponding to the position of the stabilizer bar, the stabilizer bar sequentially penetrates through the spring and the stabilizing hole, and the driving block is connected to the rod wall of the stabilizer bar in a sliding manner.
Preferably, an annular sealing groove is symmetrically formed in the annular side wall of the end cover relative to the transmission groove, a sealing ring is sleeved in the sealing groove, and the outer annular wall of the sealing ring is arranged on the inner pipe wall of the transmission pipe.
Preferably, the hole wall of the stabilizing hole is embedded with four balls in an annular shape with uniform and equal intervals by taking the stabilizing rod as the center, and the balls are connected to the rod wall of the stabilizing rod in a rolling manner.
Preferably, the axes of the driving groove, the stabilizer bar and the stabilizer hole overlap.
Preferably, the ball has a ball diameter larger than a groove diameter of the rolling groove opening.
(III) advantageous effects
Compared with the prior art, the invention provides a DC-LINK direct current filter capacitor for a photovoltaic wind power inverter, which has the following beneficial effects:
1. the DC-LINK direct current filter capacitor for the photovoltaic wind power inverter is characterized in that a cooling mechanism is arranged, low temperature in cooling liquid is transmitted into a bottom lining space above a supporting plate through a copper plate and a copper core to cool the area, heat generated by a capacitor core in the area is transmitted into the cooling liquid through the copper plate and the copper core, the temperature in the bottom lining above the supporting plate is checked through a temperature sensor, when the temperature in the area is detected to rise to a set temperature through the temperature sensor, a controller starts a semiconductor refrigerator to cool the cooling liquid, so that the refrigerating effect of the capacitor core in the bottom lining space above the supporting plate is improved, the controller controls the semiconductor refrigerator to stop refrigerating until the temperature is detected by the temperature sensor to be lower than the set value, when leakage occurs at the joint of the supporting plate and the bottom lining, the cooling liquid enters the bottom lining space above the supporting plate, the humidity sensor detects that the humidity changes, and the controller then controls the siren and sends out the police dispatch newspaper the very first time, reduces the loss.
2. This DC-LINK direct current filter capacitor that photovoltaic wind-powered electricity generation inverter used, through setting up the locking mechanism, separate end liner and end cover as required, when maintaining the electric capacity core, upwards pulling force is applyed two drive blocks, the drive block slides in the drive groove when compressing the spring, drive the motion of locking block through articulated drive rod simultaneously, extract locking block from the locking groove, exert the back of the body power mutually to end cover and end liner again, separate locking post and locking groove, and then accomplish the separation between end cover and the end liner, do benefit to and maintain the electric capacity core.
Drawings
FIG. 1 is a schematic structural diagram of a DC-LINK direct current filter capacitor for a photovoltaic wind power inverter, which is provided by the invention;
FIG. 2 is an enlarged view of portion A of FIG. 1;
FIG. 3 is an enlarged view of portion B of FIG. 2;
fig. 4 is an enlarged view of a portion C in fig. 2.
In the figure: 1 bottom lining, 2 capacitor core bodies, 3 end covers, 4 pins, 5 supporting disks, 6 copper plates, 7 cooling liquid, 8 copper cores, 9 protective cotton, 10 temperature sensors, 11 controllers, 12 humidity sensors, 13 alarms, 14 semiconductor refrigerators, 15 transmission grooves, 16 locking grooves, 17 transmission holes, 18 locking columns, 19 locking blocks, 20 locking grooves, 21 transmission rods, 22 transmission blocks, 23 springs, 24 transmission pipes, 25 sliding blocks, 26 sliding grooves, 27 stabilizing rods, 28 stabilizing holes, 29 sealing grooves, 30 sealing rings and 31 rolling balls.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-4, a DC-LINK direct current filter capacitor for a photovoltaic wind power inverter includes a bottom liner 1, a capacitor core 2 is connected in the bottom liner 1 through a cooling mechanism, an end cap 3 is arranged at the upper end of the bottom liner 1, the upper end of the capacitor core 2 is arranged at the lower end of the end cap 3, pins 4 are symmetrically connected to the capacitor core 2, the other ends of the pins 4 penetrate through the end cap 3 and extend outwards, and the bottom liner 1 and the end cap 3 are connected through a locking mechanism;
the cooling mechanism comprises a supporting plate 5 matched with a bottom lining 1, the supporting plate 5 is fixedly connected to an inner lining wall of the bottom lining 1 close to the lower end position, a copper plate 6 is embedded in the center of the supporting plate 5, a capacitor core body 2 is arranged at the upper end of the copper plate 6, cooling liquid 7 is arranged in the bottom lining 1 below the supporting plate 5, a plurality of copper cores 8 are uniformly arranged on the annular side wall of the capacitor core body 2 at equal intervals, the lower end of each copper core 8 penetrates through the supporting plate 5 and extends into the cooling liquid 7, protective cotton 9 is arranged in the bottom lining 1 above the supporting plate 5, a temperature sensor 10, a controller 11, a humidity sensor 12 and an alarm 13 are fixedly connected to the inner lining wall of the bottom lining 1 above the supporting plate 5, the protective cotton 9 wraps the capacitor core body 2, the copper cores 8, the temperature sensor 10, the controller 11, the humidity sensor 12 and the alarm 13, and a semiconductor refrigerator 14 is fixedly connected, the hot end of a semiconductor refrigerator 14 is arranged outside the bottom lining 1, the cold end of the semiconductor refrigerator 14 is arranged in cooling liquid 7, a temperature sensor 10, a controller 11, a humidity sensor 12, an alarm 13 and the semiconductor refrigerator 14 are electrically connected through leads, the low temperature in the cooling liquid 7 is transmitted into the space of the bottom lining 1 above the supporting plate 5 through the copper plate 6 and the copper core 8, the temperature in the area is reduced, meanwhile, the heat generated by the capacitor core 2 in the area is transmitted into the cooling liquid 7 through the copper plate 6 and the copper core 8, meanwhile, the temperature in the bottom lining 1 above the supporting plate 5 is checked through the temperature sensor 10, when the temperature in the area is detected to be increased to a set temperature through the temperature sensor 10, the controller 11 starts the semiconductor refrigerator 14 to reduce the temperature of the cooling liquid 7, and therefore, the refrigeration effect of the capacitor core 2 in the space of the bottom lining 1 above the supporting plate 5 is improved, when the temperature sensor 10 detects that the temperature is lower than a set value, the controller 11 controls the semiconductor refrigerator 14 to stop refrigerating, when the joint of the supporting plate 5 and the bottom lining 1 leaks, the cooling liquid 7 enters the space of the bottom lining 1 above the supporting plate 5, the humidity sensor 12 detects that the humidity changes, and the controller 11 controls the alarm 13 to give an alarm at the first time to reduce loss.
The locking mechanism comprises two transmission grooves 15, the two transmission grooves 15 are symmetrically arranged on the annular side wall of the end cover 3 along the vertical direction, the lower end of the end cover 3 is provided with a locking groove 16, a transmission hole 17 is arranged between the groove bottom of the transmission groove 15 close to one end of the bottom lining 1 and the groove wall of the locking groove 16, a matched locking column 18 is inserted into the locking groove 16, one end of the locking column 18 far away from the groove bottom of the locking groove 16 passes through the notch of the locking groove 16 and is fixedly connected to the upper end of the bottom lining 1, a locking block 19 is connected in the transmission hole 17 through a limiting component, a locking groove 20 is arranged on the column wall of the locking column 18 corresponding to the locking block 19, one end of the locking block 19 close to the groove bottom of the locking groove 20 is inserted in the locking groove 20, a transmission rod 21 is hinged at the center of one end of the locking block 19 far away from the groove bottom of the locking groove 20, the other end of the transmission rod 21 is hinged with a transmission block, the upper end fixedly connected with spring 23 of transmission piece 22, the other end fixed connection of spring 23 is on the top cell wall of transmission groove 15, separate end liner 1 and end cover 3 when needing, when maintaining capacitor core 2, exert ascending pulling force to two transmission pieces 22, transmission piece 22 slides in transmission groove 15 when compressing spring 23, drive the motion of piece 19 of locking through articulated transfer line 21 simultaneously, extract locking piece 19 from locking groove 20, exert the opposite side power to end cover 3 and end liner 1 again, separate locking post 18 and locking groove 16, and then accomplish the separation between end cover 3 and the end liner 1, do benefit to and maintain capacitor core 2.
The annular side wall of the end cover 3 is sleeved with a transmission pipe 24, one end, far away from the bottom of the transmission groove 15, of the transmission block 22 penetrates through a notch of the transmission groove 15 and is fixedly connected to the inner pipe wall of the transmission pipe 24, upward pulling force is applied to the transmission pipe 24, and the transmission pipe 24 can drive the two transmission blocks 22 to move synchronously after being stressed.
The limiting assembly comprises a sliding block 25 with a T-shaped section, the sliding block 25 is fixedly connected to the side wall of the position locking block 19 close to one end of the transmission rod 21, a sliding groove 26 with a T-shaped section is formed in the hole wall of the transmission hole 17 corresponding to the position of the sliding block 25, the sliding block 25 is slidably connected into the sliding groove 26, the sliding block 25 can be driven to synchronously move in the sliding groove 26 when the position locking block 19 moves, and the position locking block 19 is prevented from being separated from the transmission hole 17.
Along vertical direction fixedly connected with stabilizer bar 27 in the drive groove 15, stabilizing hole 28 has been seted up to the position that transmission block 22 corresponds stabilizer bar 27, and stabilizer bar 27 passes spring 23 and stabilizing hole 28 setting in proper order, and transmission block 22 sliding connection is on stabilizer bar 27's pole wall, through stabilizer bar 27, prevents that transmission block 22 from breaking away from in drive groove 15.
An annular sealing groove 29 is symmetrically formed in the annular side wall of the end cover 3 relative to the transmission groove 15, a sealing ring 30 is sleeved in the sealing groove 29, the outer annular wall of the sealing ring 30 is arranged on the inner pipe wall of the transmission pipe 24, and external dust is prevented from entering the transmission groove 15 through the sealing ring 30.
The hole wall of the stabilizing hole 28 is embedded with four balls 31 which are uniformly arranged in an annular shape at equal intervals by taking the stabilizing rod 27 as a center, the balls 31 are connected on the rod wall of the stabilizing rod 27 in a rolling manner, the stabilizing rod 27 is clamped by the balls 31 which are distributed in an annular shape, when the driving block 22 moves on the stabilizing rod 27, the balls 31 are driven to roll, and the friction resistance of the driving block 22 when sliding on the stabilizing rod 27 is reduced.
The axes of the transmission groove (15), the stabilizing rod (27) and the stabilizing hole (28) are overlapped, so that the transmission block (22) can stably move in the transmission groove (15).
The ball diameter of the ball (31) is larger than the groove diameter of the notch of the rolling groove, so that the ball (31) is prevented from sliding out of the rolling groove.
In summary, in the DC-LINK DC filter capacitor for the photovoltaic wind power inverter, the low temperature in the cooling liquid 7 is transferred to the space of the bottom liner 1 above the supporting plate 5 through the copper plate 6 and the copper core 8, the temperature of the region is reduced, the heat generated by the capacitor core 2 in the region is transferred to the cooling liquid 7 through the copper plate 6 and the copper core 8, the temperature in the bottom liner 1 above the supporting plate 5 is detected by the temperature sensor 10, when the temperature of the region is detected by the temperature sensor 10 to be raised to the set temperature, the controller 11 starts the semiconductor refrigerator 14 to reduce the temperature of the cooling liquid 7, so as to improve the refrigeration effect on the capacitor core 2 in the space of the bottom liner 1 above the supporting plate 5, until the temperature sensor 10 detects that the temperature is lower than the set value, the controller 11 controls the semiconductor refrigerator 14 to stop refrigeration, and when the connection between the supporting plate 5 and the bottom liner 1 leaks, the cooling liquid 7 enters the space of the bottom liner 1 above the supporting disc 5, the humidity sensor 12 detects that the humidity changes, and the controller 11 controls the alarm 13 to give an alarm at the first time, so that the loss is reduced; when the bottom lining 1 and the end cover 3 need to be separated and the capacitor core 2 needs to be maintained, upward pulling force is applied to the two transmission blocks 22, the transmission blocks 22 compress the springs 23 and slide in the transmission grooves 15, meanwhile, the hinged transmission rod 21 drives the locking blocks 19 to move, the locking blocks 19 are pulled out of the locking grooves 20, back force is applied to the end cover 3 and the bottom lining 1, the locking columns 18 are separated from the locking grooves 16, and then the end cover 3 and the bottom lining 1 are separated, so that the capacitor core 2 is maintained.
It is to be noted that the term "comprises," "comprising," or any other variation thereof is intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. The utility model provides a DC-LINK direct current filter capacitor that photovoltaic wind-powered electricity generation inverter used, includes end liner (1), its characterized in that: the capacitor core body (2) is connected in the bottom liner (1) through a cooling mechanism, an end cover (3) is arranged at the upper end of the bottom liner (1), the upper end of the capacitor core body (2) is arranged at the lower end of the end cover (3), pins (4) are symmetrically connected to the capacitor core body (2), the other ends of the pins (4) penetrate through the end cover (3) and extend outwards, and the bottom liner (1) is connected with the end cover (3) through a locking mechanism;
cooling mechanism includes with end liner (1) assorted supporting disk (5), supporting disk (5) fixed connection is on end liner (1) is close to the inside wall of lower extreme position, the center department of supporting disk (5) inlays copper (6), electric capacity core (2) set up the upper end at copper (6), are located be equipped with coolant liquid (7) in end liner (1) of supporting disk (5) below, even equidistance is equipped with a plurality of copper cores (8) on the annular side wall of electric capacity core (2), the lower extreme of copper core (8) runs through supporting disk (5) and extends to coolant liquid (7), is located be equipped with in end liner (1) of supporting disk (5) top and protects cotton (9), is located fixedly connected with temperature sensor (10), controller (11) on the inside liner wall of supporting disk (5) top fixedly connected with temperature sensor (10), controller (11), Humidity transducer (12) and siren (13), protection cotton (9) parcel electric capacity core (2), copper core (8), temperature sensor (10), controller (11), humidity transducer (12) and siren (13) set up, the interior bottom fixedly connected with semiconductor refrigerator (14) of end liner (1), the hot junction setting of semiconductor refrigerator (14) is outside end liner (1), the cold junction setting of semiconductor refrigerator (14) is in coolant liquid (7), temperature sensor (10), controller (11), humidity transducer (12) siren (13) and semiconductor refrigerator (14) pass through the wire electricity and connect.
2. The DC-LINK direct current filter capacitor for the photovoltaic wind power inverter of claim 1, wherein: the locking mechanism comprises two transmission grooves (15), the two transmission grooves (15) are symmetrically arranged on the annular side wall of the end cover (3) along the vertical direction, a locking groove (16) is formed in the lower end of the end cover (3), a transmission hole (17) is formed between the groove bottom of the transmission groove (15) close to one end of the bottom lining (1) and the groove wall of the locking groove (16), a matched locking column (18) is inserted into the locking groove (16), one end, far away from the groove bottom of the locking groove (16), of the locking column (18) penetrates through the notch of the locking groove (16) and is fixedly connected to the upper end of the bottom lining (1), a locking block (19) is connected into the transmission hole (17) through a limiting component, a locking groove (20) is formed in the position, corresponding to the locking block (19), on the column wall of the locking column (18), of the locking block (19) close to the groove bottom of the locking groove (20), and is inserted into the locking groove (20), the locking piece (19) keep away from the one end center department of locking groove (20) tank bottom and articulate there is transfer line (21), the other end of transfer line (21) is along vertical transmission inslot (15) and articulate there is transmission piece (22), the upper end fixedly connected with spring (23) of transmission piece (22), the other end fixed connection of spring (23) is on the top cell wall of transmission groove (15).
3. The DC-LINK direct current filter capacitor for the photovoltaic wind power inverter of claim 2, wherein: the annular side wall of the end cover (3) is sleeved with a transmission pipe (24), and one end, far away from the bottom of the transmission groove (15), of the transmission block (22) penetrates through a notch of the transmission groove (15) and is fixedly connected to the inner pipe wall of the transmission pipe (24).
4. The DC-LINK direct current filter capacitor for the photovoltaic wind power inverter of claim 2, wherein: the limiting assembly comprises a sliding block (25) with a T-shaped section, the sliding block (25) is fixedly connected to the side wall of the position locking block (19) close to one end of the transmission rod (21), a sliding groove (26) with a T-shaped section is formed in the hole wall of the transmission hole (17) corresponding to the position of the sliding block (25), and the sliding block (25) is slidably connected into the sliding groove (26).
5. The DC-LINK direct current filter capacitor for the photovoltaic wind power inverter of claim 2, wherein: follow vertical direction fixedly connected with stabilizer bar (27) in transmission groove (15), stabilizing hole (28) have been seted up to the position that transmission block (22) correspond stabilizer bar (27), stabilizer bar (27) pass spring (23) and stabilizing hole (28) setting in proper order, and transmission block (22) sliding connection is on the pole wall of stabilizer bar (27).
6. The DC-LINK direct current filter capacitor for the photovoltaic wind power inverter of claim 3, wherein: the annular side wall of the end cover (3) is symmetrically provided with an annular sealing groove (29) relative to the transmission groove (15), a sealing ring (30) is sleeved in the sealing groove (29), and the outer annular wall of the sealing ring (30) is arranged on the inner pipe wall of the transmission pipe (24).
7. The DC-LINK direct current filter capacitor for the photovoltaic wind power inverter of claim 5, wherein: use stabilizer bar (27) as the center on the pore wall of stabilizer hole (28) to be four rolling grooves of having seted up of the even equidistance of annular, be equipped with rolling ball (31) in the rolling groove, ball (31) roll connection is on the pole wall of stabilizer bar (27).
8. The DC-LINK direct current filter capacitor for the photovoltaic wind power inverter of claim 5, wherein: the axes of the transmission groove (15), the stabilizing rod (27) and the stabilizing hole (28) are overlapped.
9. The DC-LINK direct current filter capacitor for the photovoltaic wind power inverter of claim 7, wherein: the ball diameter of the ball (31) is larger than the groove diameter of the notch of the rolling groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011489768.1A CN112735812A (en) | 2020-12-16 | 2020-12-16 | DC-LINK direct current filter capacitor that photovoltaic wind power inverter used |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011489768.1A CN112735812A (en) | 2020-12-16 | 2020-12-16 | DC-LINK direct current filter capacitor that photovoltaic wind power inverter used |
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| Publication Number | Publication Date |
|---|---|
| CN112735812A true CN112735812A (en) | 2021-04-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011489768.1A Pending CN112735812A (en) | 2020-12-16 | 2020-12-16 | DC-LINK direct current filter capacitor that photovoltaic wind power inverter used |
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| CN (1) | CN112735812A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114156084A (en) * | 2021-12-06 | 2022-03-08 | 扬州日精电子有限公司 | DC-LINK direct current filter capacitor for silicon carbide power module for automobile |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102544625A (en) * | 2012-03-05 | 2012-07-04 | 苏州奥杰汽车工业有限公司 | Cooling device of semiconductor water-cooling battery |
| CN106384851A (en) * | 2016-11-29 | 2017-02-08 | 华霆（合肥）动力技术有限公司 | Leakage inspection device and battery module |
| CN211860569U (en) * | 2020-05-29 | 2020-11-03 | 宝鸡恒业有色金属科技有限公司 | Tantalum-tungsten alloy wire heating device |
| CN211879538U (en) * | 2020-03-10 | 2020-11-06 | 黑龙江国信通科技讯息产业有限公司 | Lithium manganate ternary lithium battery capable of prolonging service life |
-
2020
- 2020-12-16 CN CN202011489768.1A patent/CN112735812A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102544625A (en) * | 2012-03-05 | 2012-07-04 | 苏州奥杰汽车工业有限公司 | Cooling device of semiconductor water-cooling battery |
| CN106384851A (en) * | 2016-11-29 | 2017-02-08 | 华霆（合肥）动力技术有限公司 | Leakage inspection device and battery module |
| CN211879538U (en) * | 2020-03-10 | 2020-11-06 | 黑龙江国信通科技讯息产业有限公司 | Lithium manganate ternary lithium battery capable of prolonging service life |
| CN211860569U (en) * | 2020-05-29 | 2020-11-03 | 宝鸡恒业有色金属科技有限公司 | Tantalum-tungsten alloy wire heating device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114156084A (en) * | 2021-12-06 | 2022-03-08 | 扬州日精电子有限公司 | DC-LINK direct current filter capacitor for silicon carbide power module for automobile |
| CN114156084B (en) * | 2021-12-06 | 2023-07-28 | 扬州日精电子有限公司 | DC-LINK direct current filter capacitor for silicon carbide power module for automobile |
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