CN115473384A - Overvoltage protection's generator protection device - Google Patents
Overvoltage protection's generator protection device Download PDFInfo
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- CN115473384A CN115473384A CN202211033190.8A CN202211033190A CN115473384A CN 115473384 A CN115473384 A CN 115473384A CN 202211033190 A CN202211033190 A CN 202211033190A CN 115473384 A CN115473384 A CN 115473384A
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- heat dissipation
- shell
- buffer
- protection device
- protection
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- 230000017525 heat dissipation Effects 0.000 claims abstract description 73
- 239000000872 buffer Substances 0.000 claims abstract description 48
- 230000001681 protective effect Effects 0.000 claims abstract description 12
- 238000009434 installation Methods 0.000 claims description 22
- 210000000078 claw Anatomy 0.000 claims description 16
- 238000005096 rolling process Methods 0.000 claims description 6
- 239000011248 coating agent Substances 0.000 claims description 5
- 238000000576 coating method Methods 0.000 claims description 5
- 239000007858 starting material Substances 0.000 claims description 4
- 239000007853 buffer solution Substances 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims 1
- 239000002994 raw material Substances 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 12
- 230000002035 prolonged effect Effects 0.000 abstract description 4
- 238000003860 storage Methods 0.000 description 6
- 238000012986 modification Methods 0.000 description 5
- 230000004048 modification Effects 0.000 description 5
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 238000005452 bending Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 230000005284 excitation Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000002085 persistent effect Effects 0.000 description 3
- 230000003111 delayed effect Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 239000011787 zinc oxide Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000002238 attenuated effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005347 demagnetization Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000001012 protector Effects 0.000 description 1
- 238000012552 review Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
- H02K11/20—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for measuring, monitoring, testing, protecting or switching
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
- H02K11/20—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for measuring, monitoring, testing, protecting or switching
- H02K11/26—Devices for sensing voltage, or actuated thereby, e.g. overvoltage protection devices
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/24—Casings; Enclosures; Supports specially adapted for suppression or reduction of noise or vibrations
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/02—Arrangements for cooling or ventilating by ambient air flowing through the machine
- H02K9/04—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/22—Arrangements for cooling or ventilating by solid heat conducting material embedded in, or arranged in contact with, the stator or rotor, e.g. heat bridges
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/22—Arrangements for cooling or ventilating by solid heat conducting material embedded in, or arranged in contact with, the stator or rotor, e.g. heat bridges
- H02K9/227—Heat sinks
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2213/00—Specific aspects, not otherwise provided for and not covered by codes H02K2201/00 - H02K2211/00
- H02K2213/06—Machines characterised by the presence of fail safe, back up, redundant or other similar emergency arrangements
Abstract
The invention discloses a generator protection device with overvoltage protection, which comprises a shell assembly, a protection device and a protection device, wherein the shell assembly comprises a shell, a protection shell arranged in the shell and a buffer component arranged between the protection shell and the shell; the protection assembly comprises a circuit breaker arranged in the protection shell, a fuse wire arranged on the circuit breaker and a heat dissipation piece arranged in the protection shell; the heat dissipation assembly is arranged in the protective shell, so that in the pressure relief process, the starting block can be enabled to move upwards unaffected and rapidly completed (to adapt to rapid expansion of air pressure and reduce risks), and meanwhile, the starting block can be enabled to be slowly completed in the reset process, risks caused by high frequency and frequent generation of electric arcs in a short time are prevented, the starting time of the starting block is prolonged, the pressure relief time period is prolonged, and the safety is high.
Description
Technical Field
The invention relates to the technical field of overvoltage protection, in particular to a generator protection device with overvoltage protection.
Background
The overvoltage protection is used for protecting stator overvoltage caused by various running conditions of the generator, no-load and load states of the generator are distinguished, and the generator is disconnected firstly and then jumps to the magnetic switch to discharge and extinguish magnetism. In the prior art, the overvoltage protection constant value of the generator is 1.3 times 0.5s (namely 1.3 times of the rated voltage of the generator). However, in practice, during the false strong excitation process in the idle state, the continuous rise of the generator voltage will cause the continuous rise of the rotor current, that is, the continuous rise of the rotor magnetic energy. The voltage of the rotor of the generator suddenly bears more than 2 times of rated excitation voltage, and the rotor current and the stator voltage rapidly rise. Due to the saturation factor of the no-load characteristic of the generator, when the stator voltage rises to 1.3 times, the rotor current reaches about 2 times of rated exciting current; because the generator overvoltage protection is delayed for 0.5 second by 1.3 times, and the demagnetization switch and the tripping circuit are delayed for 0.1 second, the stator voltage is close to 1.4 times, and the rotor current and the rotor magnetic energy are close to 3 times. Tripping the kill-switch under such high current and high energy presents the risk of failure and burning the kill-switch.
Namely, the overvoltage protection method in the prior art has the defects of incapability of dealing with stator overvoltage generated by self-shunt no-load mis-excitation, increase of the burden of a field suppression device, great potential safety hazard and the like.
Disclosure of Invention
This section is for the purpose of summarizing some aspects of embodiments of the invention and to briefly introduce some preferred embodiments. In this section, as well as in the abstract and title of the application, simplifications or omissions may be made to avoid obscuring the purpose of the section, the abstract and the title, and such simplifications or omissions are not intended to limit the scope of the invention.
The present invention has been made in view of the above-mentioned problems of the conventional overvoltage protection generator protection device.
It is therefore an object of the present invention to provide a generator protection device for overvoltage protection.
In order to solve the technical problems, the invention provides the following technical scheme: a generator protection device with overvoltage protection comprises a shell assembly, a protective shell and a buffer component, wherein the shell assembly comprises a shell, the protective shell is arranged in the shell, and the buffer component is arranged between the protective shell and the shell; the protection assembly comprises a circuit breaker arranged in the protection shell, a fuse wire arranged on the circuit breaker and a heat dissipation piece arranged in the protection shell; and the heat dissipation assembly is arranged in the protective shell.
As a preferred embodiment of the overvoltage-protected generator protection device according to the present invention, wherein: the buffer component comprises a butt plate arranged on the inner side surface of the shell, a buffer rod arranged on the butt plate and a buffer cylinder arranged on the protective shell, a buffer solution is arranged in the buffer cylinder, the buffer plate is arranged at one end of the buffer rod extending into the buffer cylinder,
the buffer plate is provided with a through hole.
As a preferable aspect of the overvoltage-protected generator protection device of the present invention, wherein: an end cover is arranged at the upper end of the buffer cylinder, a sliding hole for the buffer rod to slide is formed in the end cover, and a sealing ring is arranged in the sliding hole.
As a preferable aspect of the overvoltage-protected generator protection device of the present invention, wherein: the breaker comprises an installation shell directly connected with the generator and an air switch arranged in the installation shell, wherein the installation shell is provided with an installation groove, the air switch is arranged in the installation groove, the air switch is electrically connected with the generator, and an installation part is arranged in the installation groove.
As a preferable aspect of the overvoltage-protected generator protection device of the present invention, wherein: the mounting part comprises a pull-up rod arranged in the mounting groove, a grabbing claw arranged at the lower end of the pull-up rod and a linkage rod connected with the pull-up rod, one end of the linkage rod, far away from the grabbing claw, is bent downwards and is connected with the heat dissipation component,
the utility model discloses a grab claw, including the installation groove, the installation groove is provided with the drive guide rail, snatch claw lower extreme, wherein, the pull-up rod lower extreme is provided with the rolling disc, be provided with the drive guide rail on the rolling disc, it is provided with the cooperation tooth with drive guide rail complex to snatch the claw lower extreme, the rolling disc lower extreme is provided with the meshing tooth, the installation groove internal rotation is connected with the dwang, the dwang tip is provided with the rotating gear with meshing tooth meshing.
As a preferred embodiment of the overvoltage-protected generator protection device according to the present invention, wherein: the heat dissipation assembly comprises a heat dissipation row arranged in the protection shell, a heat dissipation pipeline arranged on the heat dissipation row and a heat dissipation fan arranged at the lower end of the heat dissipation pipeline, the heat dissipation fan is connected with the heat dissipation row, a coating box is arranged at the lower end of the heat dissipation pipeline, and a connecting piece is arranged between the heat dissipation fan and the heat dissipation row.
As a preferred embodiment of the overvoltage-protected generator protection device according to the present invention, wherein: the heat dissipation pipeline upper end is connected with the starting part, the starting part includes the connecting block that links to each other with the heat dissipation pipeline, sets up persisting the groove in the connecting block, slides and connects the start block of persisting the inslot and set up the starter tube in the start block rear end, the start tube rear end is connected with the jack-up pipe, the jack-up pipe upper end links to each other with the trace, be provided with the elastic component between start tube and the persisting groove.
As a preferred embodiment of the overvoltage-protected generator protection device according to the present invention, wherein: the heat dissipation pipeline is characterized in that a pressure relief hole is formed in the upper end of the heat dissipation pipeline, an inclined plane is arranged at the lower end of the starting block, a groove is formed in the inclined plane, a starting ball is arranged in the groove, a plurality of through holes are formed in the side wall of the starting block, and a dredging piece is arranged at the upper end of the heat dissipation pipeline.
As a preferred embodiment of the overvoltage-protected generator protection device according to the present invention, wherein: the dredging part comprises a transverse plate arranged in the heat dissipation pipeline and vent holes arranged on the transverse plate, and a surrounding cylinder is arranged on the vent holes.
The invention has the beneficial effects that: in the pressure relief process, the quick-release starting block can be ensured to move upwards without being affected and completed quickly (so as to adapt to rapid expansion of air pressure and reduce risks), and can be ensured to be completed slowly in the reset process, so that the risk caused by high frequency and frequent generation of electric arcs in a short time is prevented, the starting time of the starting block is prolonged, the pressure relief time period is prolonged, and the safety is high.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise. Wherein:
fig. 1 is a schematic view of the overall structure of the overvoltage protection generator protection device of the present invention.
Fig. 2 is a schematic sectional view of a buffer structure of the overvoltage protection generator protection device according to the present invention.
Fig. 3 is an exploded view of the mounting structure of the overvoltage protection generator protection device of the present invention.
Fig. 4 is a schematic structural diagram of the interior of the protection object of the overvoltage protection generator protection device of the invention.
Fig. 5 is a schematic cross-sectional view of the starter structure of the overvoltage protection generator protector of the present invention.
Fig. 6 is a schematic view of the installation of the sliding rack of the overvoltage protection generator protection device of the present invention.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways than those specifically described and will be readily apparent to those of ordinary skill in the art without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.
Furthermore, the references herein to "one embodiment" or "an embodiment" refer to a particular feature, structure, or characteristic that may be included in at least one implementation of the present invention. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.
Furthermore, the present invention is described in detail with reference to the drawings, and in the detailed description of the embodiments of the present invention, the cross-sectional view illustrating the structure of the device is not enlarged partially according to the general scale for convenience of illustration, and the drawings are only exemplary and should not be construed as limiting the scope of the present invention. In addition, the three-dimensional dimensions of length, width and depth should be included in the actual fabrication.
Example 1
Referring to fig. 1-6, the invention discloses a generator protection device for overvoltage protection, which includes a housing assembly 100, in this embodiment, the housing assembly 100 includes a housing 101, a protection housing 102 is disposed in the housing 101, a gap is disposed between the protection housing 102 and the housing 101, a buffer component 103 is disposed in the gap, the housing 101 serves as an external housing for protecting the entire generator, the protection housing 102 provides protection for the generator, and the buffer component 103 is used for shock absorption and buffering for an internal engine.
Further, in this embodiment, the buffer member 103 includes an abutting plate 103a provided on the inner side surface of the housing 101, the abutting plate 103a is connected to the inner surface of the housing 101 by a bolt, and in order to increase the contact area, the abutting plate 103a is shaped like a circular disk, a buffer rod 103b is directly connected to the abutting plate 103a, a buffer cylinder 103c is provided on the outer surface of the protective housing 102, a buffer solution is provided in the buffer cylinder 103c, one end of the buffer rod 103b remote from the abutting plate 103a extends into the buffer cylinder 103c, and a buffer plate 103d is provided at one end of the buffer rod 103b extending into the buffer cylinder 103c, the outer wall of the buffer plate 103d is always abutted against the inner wall of the buffer cylinder 103c, and buffer plate 103d can move along with buffer rod 103 b's removal, seted up perforating hole 103c simultaneously on buffer plate 103d, be provided with end cover 203 in buffer cylinder 103c upper end, set up the slide opening 204 that supplies buffer rod 103b to slide on end cover 203, be provided with the sealing ring in slide opening 204, when shell 101 receives striking or vibrations, can promote buffer rod 103b, make buffer plate 103d of buffer rod 103b lower extreme slide in buffer cylinder 103c, and because of the existence of perforating hole 103c, can make liquid pass perforating hole 103c, but the resistance of liquid self is big, will slow down buffer plate 103 d's removal.
Further, the present invention further includes a protection assembly 200, in this embodiment, the protection assembly 200 includes a circuit breaker 201 disposed in the protection housing 102, the circuit breaker 201 can cut off the circuit when the voltage continues to increase, so as to prevent the generator from being damaged, meanwhile, a fuse element 202 is disposed on the circuit breaker 201, a specially-made commutation fuse is connected in parallel to two sides of the circuit breaker 201, a low arc voltage is established after the switch is disconnected, so that the excitation current is transferred into the fuse, a predetermined high voltage generated after the fuse is disconnected breaks down the zinc oxide, the magnetic field energy is transferred into the zinc oxide varistor to be attenuated, so as to be rapidly de-magnetized, and the heat sink in the protection housing 102 includes a plurality of heat dissipation holes opened on the protection housing 102.
In this embodiment, the breaker 201 includes the installation shell that directly links to each other with the generator and sets up the air switch 201b in the installation shell, and air switch 201b connects on the circuit for open a circuit, has seted up the mounting groove simultaneously on the installation shell, and air switch 201b sets up in the mounting groove, and air switch 201b is connected with the generator electricity.
Preferably, a mounting member 300 is arranged in the mounting groove, in this embodiment, the mounting member 300 includes a pull-up rod 301 arranged in the mounting groove, the pull-up rod 301 is arranged at the upper end of the air switch 201b, a linkage rod 303 is connected to the rear end of the pull-up rod 301, one end of the linkage rod 303, which is far away from the grabbing claw 302, is bent downwards and connected to the heat dissipation assembly 400, the included angle between the flag-pulling rod and the linkage rod 303 is 90 °, the grabbing claw 302 is arranged at the lower end of the pull-up rod 301, and the grabbing claw 302 is used for grabbing the air switch 201b, and if necessary, the air switch 201b is pulled out, so as to prevent damage or influence on the normal use of the air switch 201b due to too high temperature.
Further, a rotating disk 304 is provided at the lower end of the pulling-up lever 301, the rotating plane of the rotating disk 304 is horizontally disposed, and the shape of the rotating disk 304 is a circular disk, while a driving guide 305 is provided on the rotating disk 304, the shape of the driving guide 305 is a spiral shape, and the spiral is screwed out, an engaging tooth 306 engaged with the driving guide 305 is provided at the lower end of the grasping claw 302, the engaging tooth 306 is a bar shape, and is disposed at equal intervals along the lower bottom surface of the grasping claw 302.
Preferably, an engaging tooth 307 is provided at a lower end of the rotary disk 304, the engaging tooth 307 is provided in a direction perpendicular to a lower surface of the rotary disk 304 and is provided along a circular circumference of the rotary disk 304, a rotary rod 308 is rotatably connected in the mounting groove, a rotation plane of the rotary rod 308 is perpendicular to a bottom surface of the rotary disk 304, and a rotary gear 309 engaged with the engaging tooth 307 is provided at an end portion of the rotary rod 308, and when the rotary rod 308 is rotated, the rotation of the engaging tooth 307 is driven by the rotary gear 309, so that the rotary disk 304 is rotated.
Preferably, an extension block is disposed on the mounting groove, a dovetail groove is disposed on the extension block, and a dovetail strip matched with the dovetail groove is disposed at the lower end of each grabbing claw 302, so that the grabbing claws 302 always move along the length direction of the dovetail groove.
Further, the present invention further includes a heat dissipation assembly 400, in this embodiment, the heat dissipation assembly 400 includes a heat dissipation bar 401 disposed in the protection housing 102, the heat dissipation bar 401 is disposed near the generator, and a mounting member 300 is further disposed at a lower end of the heat dissipation bar 401, and is configured to be connected to an outer frame of the generator by a bolt, so as to keep the heat dissipation bar 401 always attached to the generator, and the heat generated by the generator can be dissipated outwards.
Preferably, a heat dissipation duct 402 is disposed on the heat dissipation row 401, a heat dissipation fan 403 is disposed at a lower end of the heat dissipation duct 402, the heat dissipation fan 403 is connected to the heat dissipation row 401, a power cord is disposed on the heat dissipation fan 403, a central control module is disposed on the generator, the central control module is a single chip microcomputer and is used for transmitting simple signals, when the temperature of the generator changes greatly, the central control module transmits the signals to the heat dissipation fan 403, and at this time, the heat dissipation fan 403 rotates to accelerate heat dissipation.
Further, a coating box 404 is arranged at the lower end of the heat dissipation pipe 402, the coating box 404 is shaped like a circular truncated cone, a cavity is formed in the inner coating box 404, the air blown up from the heat dissipation fan 403 can be collected, and a connecting piece is arranged between the heat dissipation fan 403 and the heat dissipation row 401.
In this embodiment, the connecting piece is including rotating the dwang 308 of connecting in the radiator fan both sides, dwang 308 be provided with four, two are a set of, set up respectively in the radiator fan both sides, be connected with the pole of buckling between radiator fan's homonymy dwang 308 simultaneously, the pole of buckling links to each other two dwang 308, then the middle section position of the pole of buckling can buckle out the arch, all be provided with the torsional spring in the rear end of every dwang 308 simultaneously, the torsional spring is used for making the pole of buckling rotate to the direction that is close to radiator fan 403 all the time.
When installing the heat dissipation fan 403, the operator opens the bending rod, leans the heat dissipation fan 403 on the heat dissipation bar 401, and then puts down the bending rod, and the bending rod is clamped on the side wall of the heat dissipation bar 401 by using the torsion spring, so as to complete the installation.
Further, the upper end of the heat dissipation pipe 402 is connected with the starting member 405, in this embodiment, the starting member 405 includes a connection block 405a connected with the heat dissipation pipe 402, and a storage groove 405b formed in the connection block 405a, a lower end notch of the storage groove 405b is smaller than a width of a middle groove body of the storage groove 405b, the storage groove 405b is connected with the starting block 405c in a sliding manner, a side wall of the starting block 405c abuts against a side wall of the storage groove 405b, a starting tube 405d is arranged at a rear end of the starting block 405c, a jacking tube 406 is connected at a rear end of the starting tube 405d, an upper end of the jacking tube 406 is connected with the linkage rod 303, and an elastic member 407 is arranged between the starting tube 405d and the storage groove 405 b.
Further, a pressure relief hole 500 is formed in the upper end of the heat dissipation pipe 402, an inclined surface 501 is arranged at the lower end of the starting block 405c, a groove 502 is formed in the inclined surface 501, a starting ball 503 is arranged in the groove 502, a plurality of through holes 504 are formed in the side wall of the starting block 405c, and a dredging piece 600 is arranged at the upper end of the heat dissipation pipe 402.
In this embodiment, the dredging member 600 includes a horizontal plate 601 provided in the heat dissipating pipe 402, and a vent hole 602 provided in the horizontal plate 601, and a surrounding cylinder 603 is provided in the vent hole 602.
The operation process is as follows: when the generator is overheated, the heat dissipation fan receives a signal at the moment, and then starts to blow out hot air upwards, at the moment, the start block 405c and the start ball 503 are pushed to move together, at the moment, the overheated air moves upwards from the through hole 504 and moves into a space formed by the start block 405c and the upper end of the heat dissipation pipeline 402, heat and air are exhausted outwards through the pressure relief hole 500, the start block 405c is pushed to move upwards to drive the linkage rod 303 to move upwards, then the grabbing claw 302 grabs the air switch 201b, when the heat exhausting operation is completed, the heat dissipation fan is closed, at the moment, the start ball 503 falls quickly and blocks the air vent 602, at the moment, the air can be sent outwards only through the pressure relief hole 600, and the air remained between the inclined surface 501 and the heat dissipation pipeline 402 can only slowly move upwards through the through hole 504 with a small inner diameter, so that the start block 405c moves downwards very slowly.
In the pressure relief process, the pressure relief device can ensure that the upward moving process of the starting block 405c is not influenced and is quickly finished (so as to adapt to rapid expansion of air pressure and reduce risks), and can also ensure that the starting block 405c is slowly finished in the resetting process, thereby preventing the risks frequently generated by high frequency of electric arcs in a short time, increasing the opening time of the starting block 405c, prolonging the pressure relief time period and having higher safety.
It is important to note that the construction and arrangement of the present application as shown in the various exemplary embodiments is illustrative only. Although only a few embodiments have been described in detail in this disclosure, those skilled in the art who review this disclosure will readily appreciate that many modifications are possible (e.g., variations in sizes, dimensions, structures, shapes and proportions of the various elements, values of parameters (e.g., temperatures, pressures, etc.), mounting arrangements, use of materials, colors, orientations, etc.) without materially departing from the novel teachings and advantages of the subject matter recited in this application. For example, elements shown as integrally formed may be constructed of multiple parts or elements, the position of elements may be reversed or otherwise varied, and the nature or number of discrete elements or positions may be altered or varied. Accordingly, all such modifications are intended to be included within the scope of this invention. The order or sequence of any process or method steps may be varied or re-sequenced according to alternative embodiments. In the claims, any means-plus-function clause is intended to cover the structures described herein as performing the recited function and not only structural equivalents but also equivalent structures. Other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments without departing from the scope of the present inventions. Therefore, the present invention is not limited to a particular embodiment, but extends to various modifications that nevertheless fall within the scope of the appended claims.
Moreover, in an effort to provide a concise description of the exemplary embodiments, all features of an actual implementation may not be described (i.e., those unrelated to the presently contemplated best mode of carrying out the invention, or those unrelated to enabling the invention).
It should be appreciated that in the development of any such actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort might be complex and time consuming, but would nevertheless be a routine undertaking of design, fabrication, and manufacture for those of ordinary skill having the benefit of this disclosure, without undue experimentation.
It should be noted that the above-mentioned embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the claims of the present invention.
Claims (9)
1. The utility model provides an overvoltage protection's generator protection device which characterized in that: comprises the steps of (a) preparing a mixture of a plurality of raw materials,
the shell assembly (100) comprises a shell (101), a protective shell (102) arranged in the shell (101) and a buffer component (103) arranged between the protective shell (102) and the shell (101);
a protection assembly (200) comprising a circuit breaker (201) disposed within the protection housing (102), a fuse element (202) disposed on the circuit breaker (201), and a heat sink disposed within the protection housing (102); and the number of the first and second groups,
a heat sink assembly (400), the heat sink assembly (400) disposed within the protective housing (102).
2. The overvoltage protected generator protection device of claim 1, wherein: the buffer component (103) comprises a butt plate (103 a) arranged on the inner side surface of the shell (101), a buffer rod (103 b) arranged on the butt plate (103 a) and a buffer cylinder (103 c) arranged on the protective shell (102), a buffer solution is arranged in the buffer cylinder (103 c), a buffer plate (103 d) is arranged at one end of the buffer rod (103 b) extending into the buffer cylinder (103 c),
the buffer plate (103 d) is provided with a through hole (103 c).
3. The overvoltage protected generator protection device of claim 2, wherein: an end cover (203) is arranged at the upper end of the buffer cylinder (103 c), a sliding hole (204) for the buffer rod (103 b) to slide is formed in the end cover (203), and a sealing ring is arranged in the sliding hole (204).
4. The overvoltage protected generator protection device of claim 1, wherein: the breaker (201) comprises an installation shell directly connected with the generator and an air switch (201 b) arranged in the installation shell, wherein an installation groove is formed in the installation shell, the air switch (201 b) is arranged in the installation groove, the air switch (201 b) is electrically connected with the generator, and an installation part (300) is arranged in the installation groove.
5. The overvoltage protected generator protection device of claim 4, wherein: the mounting piece (300) comprises a pull-up rod (301) arranged in the mounting groove, a grabbing claw (302) arranged at the lower end of the pull-up rod (301) and a linkage rod (303) connected with the pull-up rod (301), one end of the linkage rod (303) far away from the grabbing claw (302) is bent downwards and connected with the heat dissipation component (400),
wherein, pull-up pole (301) lower extreme is provided with rolling disc (304), be provided with drive guide rail (305) on rolling disc (304), it is provided with cooperation tooth (306) with drive guide rail (305) complex to snatch claw (302) lower extreme, rolling disc (304) lower extreme is provided with meshing tooth (307), the mounting groove internal rotation is connected with dwang (308), dwang (308) tip is provided with and meshes tooth (307) engaged running gear (309).
6. An overvoltage protected generator protection device as claimed in claim 1 or 5 wherein: the heat dissipation assembly (400) comprises a heat dissipation bar (401) arranged in a protective shell (102), a heat dissipation pipeline (402) arranged on the heat dissipation bar (401) and a heat dissipation fan (403) arranged at the lower end of the heat dissipation pipeline (402), wherein the heat dissipation fan (403) is connected with the heat dissipation bar (401), a coating box (404) is arranged at the lower end of the heat dissipation pipeline (402), and a connecting piece is arranged between the heat dissipation fan (403) and the heat dissipation bar (401).
7. The overvoltage protected generator protection device of claim 6, wherein: the heat dissipation pipeline (402) upper end is connected with starter (405), starter (405) include connecting block (405 a) that links to each other with heat dissipation pipeline (402), set up reserve groove (405 b) in connecting block (405 a), slide and connect start-up piece (405 c) in reserving groove (405 b) and set up starting tube (405 d) at start-up piece (405 c) rear end, starting tube (405 d) rear end is connected with jack-up pipe (406), jack-up pipe (406) upper end links to each other with trace (303), be provided with elastic component (407) between start-up pipe (405 d) and reserve groove (405 b).
8. The overvoltage protected generator protection device of claim 7, wherein: pressure release hole (500) have been seted up to heat dissipation pipeline (402) upper end position, start piece (405 c) lower extreme is provided with inclined plane (501), set up recess (502) on inclined plane (501), be provided with in recess (502) and start ball (503), a plurality of through-holes (504) have been seted up on start piece (405 c) lateral wall, heat dissipation pipeline (402) upper end is provided with mediation piece (600).
9. The overvoltage protected generator protection device of claim 8, wherein: the dredging piece (600) comprises a transverse plate (601) arranged in the heat dissipation pipeline (402) and a vent hole (602) formed in the transverse plate (601), and a surrounding cylinder (603) is arranged on the vent hole (602).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211033190.8A CN115473384B (en) | 2022-08-26 | 2022-08-26 | Overvoltage protection's generator protection device |
| LU504578A LU504578B1 (en) | 2022-08-26 | 2023-06-22 | Generator protection apparatus with over-voltage protection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211033190.8A CN115473384B (en) | 2022-08-26 | 2022-08-26 | Overvoltage protection's generator protection device |
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| Publication Number | Publication Date |
|---|---|
| CN115473384A true CN115473384A (en) | 2022-12-13 |
| CN115473384B CN115473384B (en) | 2023-10-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211033190.8A Active CN115473384B (en) | 2022-08-26 | 2022-08-26 | Overvoltage protection's generator protection device |
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| Country | Link |
|---|---|
| CN (1) | CN115473384B (en) |
| LU (1) | LU504578B1 (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205753806U (en) * | 2016-05-16 | 2016-11-30 | 南昌富亿达电机电器有限公司 | A kind of automobile generating casing |
| CN107872127A (en) * | 2017-12-07 | 2018-04-03 | 王健 | A kind of small water conservancy generator |
| CN208128066U (en) * | 2018-03-26 | 2018-11-20 | 太仓富华特种电机有限公司 | Energy-saving durable type fluorine-resistant motor for commercial refrigeration piston compressor |
| CN110535282A (en) * | 2019-10-17 | 2019-12-03 | 山东博发智能科技有限公司 | A kind of electric motor temperature reduction damping |
| US20200227980A1 (en) * | 2019-01-11 | 2020-07-16 | Delta Electronics, Inc. | Motor structure |
-
2022
- 2022-08-26 CN CN202211033190.8A patent/CN115473384B/en active Active
-
2023
- 2023-06-22 LU LU504578A patent/LU504578B1/en active IP Right Grant
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205753806U (en) * | 2016-05-16 | 2016-11-30 | 南昌富亿达电机电器有限公司 | A kind of automobile generating casing |
| CN107872127A (en) * | 2017-12-07 | 2018-04-03 | 王健 | A kind of small water conservancy generator |
| CN208128066U (en) * | 2018-03-26 | 2018-11-20 | 太仓富华特种电机有限公司 | Energy-saving durable type fluorine-resistant motor for commercial refrigeration piston compressor |
| US20200227980A1 (en) * | 2019-01-11 | 2020-07-16 | Delta Electronics, Inc. | Motor structure |
| CN110535282A (en) * | 2019-10-17 | 2019-12-03 | 山东博发智能科技有限公司 | A kind of electric motor temperature reduction damping |
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| 彭传军: "隔离开关保护罩的应用", 农村电工, vol. 25, no. 286 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115473384B (en) | 2023-10-13 |
| LU504578B1 (en) | 2023-12-22 |
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