CN114400481B - Voltage stabilizer with intelligent protection function - Google Patents
Voltage stabilizer with intelligent protection function Download PDFInfo
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- CN114400481B CN114400481B CN202210071776.7A CN202210071776A CN114400481B CN 114400481 B CN114400481 B CN 114400481B CN 202210071776 A CN202210071776 A CN 202210071776A CN 114400481 B CN114400481 B CN 114400481B
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R39/00—Rotary current collectors, distributors or interrupters
- H01R39/02—Details for dynamo electric machines
- H01R39/18—Contacts for co-operation with commutator or slip-ring, e.g. contact brush
- H01R39/26—Solid sliding contacts, e.g. carbon brush
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R39/00—Rotary current collectors, distributors or interrupters
- H01R39/02—Details for dynamo electric machines
- H01R39/38—Brush holders
- H01R39/381—Brush holders characterised by the application of pressure to brush
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R39/00—Rotary current collectors, distributors or interrupters
- H01R39/02—Details for dynamo electric machines
- H01R39/58—Means structurally associated with the current collector for indicating condition thereof, e.g. for indicating brush wear
Abstract
The invention discloses a voltage stabilizer with an intelligent protection function, and belongs to the field of voltage stabilizers. The utility model provides a stabiliser with intelligence protect function, includes coil, carbon brush and drive division, its characterized in that: the pressure of the carbon brush pressing coil is constant, and the pressure is adjusted by the protection part; the protection part comprises a repulsion unit which is directly or indirectly connected with the carbon brush and provides pressure towards the coil direction for the carbon brush; the difference compensation unit is connected with the repulsion unit and adjusts the pressure provided by the repulsion unit; the pressure value provided by the repulsion unit is in linear positive correlation with the moving value of the carbon brush towards the coil; the pressing force of the carbon brush on the upper surface of the coil can be constant all the time, and the problems of excessive wear or poor contact of the carbon brush are effectively avoided.
Description
Technical Field
The invention belongs to the field of voltage regulators, and particularly relates to a voltage regulator with an intelligent protection function.
Background
The voltage stabilizer changes the turn ratio of the coil by adjusting the position of the carbon brush, thereby keeping the stability of the output voltage.
Generally, the carbon brush is soft in material, the carbon brush is gradually abraded due to long-time friction, and a copper block embedded and fixed with the carbon brush can directly contact with the surface of a coil to cause turn-to-turn short circuit and finally burn out the coil after the carbon brush is completely abraded, so that the carbon brush needs to be replaced in time.
The existing solution is to perform periodic inspection, but because the power voltage stability degrees of different areas and different time are different, the wear degree of the carbon brush is different, so the method has certain risks, and the inspection is too frequent and wastes time and labor.
In addition, since the pressing force of the carbon brush on the coil is generally composed of the self gravity of the carbon brush and the pressing force of the external mechanism, the self gravity of the carbon brush is smaller and smaller in the continuous abrasion process, and in order to keep the pressing force of the carbon brush on the coil constant, the pressing force of the external mechanism needs to be gradually increased in the continuous abrasion process of the carbon brush.
Disclosure of Invention
The invention aims to provide a voltage stabilizer with an intelligent protection function, which can realize that the pressing force of a carbon brush on the upper surface of a coil is always constant and effectively avoid the problems of excessive wear or poor contact of the carbon brush.
The invention relates to a voltage stabilizer with an intelligent protection function, which comprises a coil, a carbon brush and a driving part, and is characterized in that: the pressure of the carbon brush pressing coil is constant, and the pressure is adjusted by the protection part; the protection part comprises
The repulsion unit is directly or indirectly connected with the carbon brush and provides pressure towards the coil direction for the carbon brush; and the number of the first and second groups,
The difference compensation unit is connected with the repulsion unit and adjusts the pressure provided by the repulsion unit;
the pressure value provided by the repulsion unit is in linear positive correlation with the moving value of the carbon brush towards the coil.
As a further improvement of the invention, magnetic repulsion exists in the repulsion unit, and the magnetic repulsion is directly or indirectly output to the outer carbon brush in a pressure mode; the magnetic repulsive force includes a component force in a direction toward the coil.
As a further improvement of the invention, the repulsion unit comprises an upper magnetic block and a lower magnetic block which have the same magnetism; the lower magnetic block is directly or indirectly connected with the carbon brush; the direction of magnetic repulsion between the upper magnetic block and the lower magnetic block is parallel to the moving direction of the carbon brush.
As a further improvement of the invention, the distance between the upper magnetic block and the lower magnetic block is in positive linear correlation with the moving value of the carbon brush towards the coil.
As a further improvement of the invention, the magnetic field intensity of the upper magnetic block and/or the lower magnetic block is in positive linear correlation with the moving value of the carbon brush towards the coil.
As a further improvement of the invention, the difference compensation unit comprises an air cavity, an air passage and difference compensation output; the air cavity is a sealed cavity with variable volume, and the volume value is linearly and negatively correlated with the moving value of the carbon brush towards the coil; the air channel is communicated with the air cavity and the difference compensation output so that the difference compensation output receives the gas exhausted by the air cavity; the difference compensation output is connected with the upper magnetic block and/or the lower magnetic block and is driven by gas to start.
As a further improvement of the invention, the differential compensation output comprises a differential compensation air bag; the difference compensation air bag is connected with the upper magnetic block; the difference compensation air bag is made of flexible or elastic materials and has the deformation capacity towards the lower magnetic block; under the same gas quantity change, the deformation quantity of the differential compensation air bag is larger than that of the air cavity.
As a further improvement of the invention, the differential compensation air bag comprises at least two bag walls with different elastic coefficients; when the gas received by the differential compensation air bag exceeds a limited threshold value, the bag wall with the highest elastic coefficient deforms; the capsule wall with the highest elastic coefficient is abutted with the microswitch, and the state switching of the microswitch is controlled by the deformation of the capsule wall with the highest elastic coefficient; the micro switch is communicated with an external alarm system.
As a further improvement of the invention, the differential compensation output comprises a magnetism increasing component, and the same magnetism increasing components are arranged on the outer sides of the N pole and the S pole of the lower magnetic plate; the magnetism increasing component comprises a plurality of increasing plates made of paramagnets or ferromagnetic pieces; the plurality of additional plates and the lower magnetic plate are distributed on the same straight line from inside to outside relative to the lower magnetic plate in sequence; the heights of the upper ends of the additional plates are all higher than that of the upper end of the lower magnetic plate, and the height difference values of the upper ends of the different additional plates and the lower magnetic plate are in positive linear correlation with the distance value of the corresponding lower magnetic plate; the plate increasing plate is directly or indirectly driven by the gas exhausted from the gas cavity; the additional plate can move towards the lower magnetic plate until the additional plate is abutted against the lower magnetic plate to form a new lower magnetic plate.
As a further improvement of the invention, the magnetism increasing assembly also comprises a special-shaped air bag; the upper end surface of the special-shaped air bag is in a step shape, the number of steps is matched with the number of the increased plates, and the step side wall of each step is a deformation wall of the special-shaped air bag; the deformation wall can be driven by gas to deform along the direction of the lower magnetic block; the additional plate arranged on each step is abutted against the deformation wall and can move along the direction of the lower magnetic block under the drive of the deformation wall; the deformation coefficient of the deformation wall close to the lower magnetic block is smaller than or equal to that of the deformation wall far away from the lower magnetic block.
Compared with the prior art, the invention has the beneficial effects that:
according to the invention, the upper magnetic block and the lower magnetic block which have the same magnetism are arranged, so that a vertical downward magnetic repulsion force is applied to the copper block; when the carbon brush is gradually worn and the self gravity is weakened, the magnetic repulsion force is increased so as to keep the pressing force of the carbon brush on the coil constant and effectively avoid the problems of transitional wear and poor contact of the carbon brush;
the copper block and the carbon brush vertically move downwards under the influence of self gravity, the moving plate is driven to move, the moving plate presses the soft sleeve to deform, the volume of the air cavity is reduced, the gas exhausted from the air cavity is filled into the difference compensation air bag, the inner diameter of the difference compensation air bag is smaller than that of the air cavity, so that the deformation quantity of the difference compensation air bag in the vertical direction is larger than that of the air cavity in the vertical direction under the condition of the same gas variation quantity, the distance between the upper magnetic block and the lower magnetic block is shortened, namely the carbon brush is worn, the carbon brush and the copper block move downwards, the distance between the upper magnetic block and the lower magnetic block is shorter, the larger the magnetic repulsion force borne by the copper block is, the weakening of self gravity of the carbon brush is compensated, and the obvious improvement effect is achieved;
Meanwhile, the microswitch can be turned on by the deformation of the differential compensation air bag, the state switching of the microswitch changes signals of an external alarm system, a worker is reminded of replacing the carbon brush in time, the timeliness of replacing the carbon brush and the use integrity of the carbon brush are effectively guaranteed, and the waste phenomenon that the carbon brush is replaced when the carbon brush is not completely used is avoided;
in addition, a magnetic repulsion force compensation mode is further arranged, namely, the copper block and the carbon brush are vertically moved downwards under the influence of self gravity, the moving plate is driven to move, the moving plate presses the soft sleeve to deform, the volume of the air cavity is reduced, the air discharged from the air cavity is filled into the opposite-sex air bag, the special-shaped air bag drives each additional plate distributed at the upper end, the additional plates are made of paramagnetic bodies or ferromagnetic bodies, the heights of the additional plates are higher than those of the lower magnetic block, when the additional plates are attached to two ends of the lower magnetic block, the additional plates and the original lower magnetic block form a new lower magnetic block, the magnetic force shown by the new lower magnetic block is larger than that shown by the original lower magnetic block, under the condition that the distance between the upper magnetic block and the lower magnetic block is larger and larger, the magnetic repulsion force is increased, the weakening of the self gravity of the carbon brush is compensated, and the obvious improvement effect is achieved.
Drawings
Fig. 1 is a schematic perspective view of a first embodiment of the present invention;
Fig. 2 is a schematic diagram of a partially cut-away perspective structure of a protection portion according to a first embodiment of the present invention;
fig. 3 is a schematic plan view of a protection portion according to a first embodiment of the invention;
fig. 4 is a schematic plan view of the protection portion when the carbon brush descends according to the first embodiment of the invention;
FIG. 5 is a schematic plan view of a difference compensation unit according to a second embodiment of the present invention;
fig. 6 is a schematic plan view of a protection portion according to a third embodiment of the present invention;
FIG. 7 is a schematic plan view of a difference compensation unit according to a fourth embodiment of the present invention;
fig. 8 is a schematic plan view of a magnetism increasing assembly according to a fourth embodiment of the present invention;
fig. 9 is a schematic plan view of a magnetism increasing assembly according to a fourth embodiment of the present invention;
fig. 10 is a plan exploded view of the magnetizing assembly and the lower magnetic block according to the fifth embodiment of the present invention.
The reference numbers in the figures illustrate:
the circuit comprises a coil 1, a protection part 2, a shell 21, a copper block 22, a moving plate 24, a soft sleeve 25, a lower magnetic block 26, an upper magnetic block 27, a difference compensation unit 28, an inner increasing plate 281, a middle increasing plate 282, an outer increasing plate 283, a special-shaped air bag 284, a microswitch 29 and a driving part 3.
Detailed Description
The first embodiment is as follows: referring to fig. 1-4, a voltage regulator with intelligent protection function includes a coil 1, a protection part 2 and a driving part 3.
The driving part 3 is located in the middle of the upper side of the coil 1, the output end of the driving part 3 is connected with the protection part 2, and the driving part 3 drives the protection part 2 to rotate around the axis of the coil 1.
The protection part 2 comprises a shell 21, a copper block 22, a movable plate 24 and a soft sleeve 25; the shell 21 is hollow, the moving plate 24 is located in the shell 21, the lower end of the moving plate 24 is fixedly connected with the copper block 22, the copper block 22 penetrates through the shell 21, the lower end of the copper block 22 located on the lower side of the shell 21 is embedded with the carbon brush 23, the output end of the protection part 2 is the carbon brush 23, the carbon brush 23 is pressed on the upper surface of the coil 1 all the time under the action of gravity and external force, and the number of turns of the connecting coil 1 can be changed by the carbon brush 23 under the driving of the driving part 3, so that voltage is stabilized.
Wherein, the copper block 22 is connected with the shell 21 in a sliding sealing way, the soft sleeve 25 is sleeved on the periphery of the upper end part of the copper block 22 in the shell 21, the upper end of the soft sleeve 25 is fixedly connected with the lower end surface of the movable plate 24 in a sealing way, the lower end of the soft sleeve 25 is fixedly connected with the inner wall of the lower side of the shell 21 in a sealing way, and the inner side of the soft sleeve 25 forms an air cavity.
The soft sleeve 25 is a multi-stage sleeve and comprises an upper sleeve, a middle sleeve and a lower sleeve; the outer wall of the upper sleeve is in sealed sliding connection with the inner wall of the middle sleeve, and the outer wall of the middle sleeve is in sealed sliding connection with the inner wall of the lower sleeve; the lower end of the outer wall of the upper sleeve and the upper end of the inner wall of the middle sleeve are provided with limiting structures, so that the upper sleeve cannot be completely separated from the middle sleeve; the lower end of the outer wall of the middle sleeve and the upper end of the inner wall of the lower sleeve are provided with limiting structures, so that the middle sleeve cannot be completely separated from the lower sleeve; thus, the soft sleeve 25 can be deformed in the vertical direction, so that the volume of the air chamber is reduced or increased.
A lower magnetic block 26 is fixedly arranged at the upper end of the movable plate 24, an upper magnetic block 27 is arranged in the shell 21, and the upper magnetic block 27 is positioned above the lower magnetic block 26; the upper and lower magnetic blocks 27 and 26 are both permanent magnets and have the same magnetism to maintain repulsion.
A difference compensation unit 28 is arranged in the shell 21, the difference compensation unit 28 is a difference compensation air bag, and the difference compensation air bag is fixedly arranged at the upper end of the upper magnetic block 27; the difference compensation air bag is embedded in the upper wall of the shell 21 and penetrates through the upper wall of the shell 21; the inner cavity of the differential compensation air bag is communicated with the air cavity of the soft sleeve 25, the communicated air passage is arranged in the shell wall of the shell 21, one end opening of the air passage is positioned in the air cavity, and the other end opening of the air passage is communicated with the differential compensation air bag; the differential compensation air bag is cylindrical, the side wall of the differential compensation air bag is made of a flexible bag film and has deformation capacity, and the deformation direction is defined to be in the vertical direction; the lower wall and the upper wall of the differential compensation air bag are both made of rigid materials; therefore, when gas is introduced into the difference compensation air bag, the difference compensation air bag expands and drives the upper magnetic block 27 to move downwards to shorten the distance between the upper magnetic block and the lower magnetic block 26; the diameter of the difference compensation air bag is smaller than the minimum diameter of the soft sleeve 25, namely the diameter of the difference compensation air bag is smaller than the inner diameter of the upper sleeve, so that when the soft sleeve 25 moves downwards for a distance A, the difference compensation air bag expands downwards for a distance B, B is larger than A, the carbon brush 23 moves downwards, the closer the distance between the upper magnetic block 27 and the lower magnetic block 26 is, and the larger the repulsive force between the upper magnetic block 27 and the lower magnetic block 26 is.
Because the carbon brush 23 is abraded after being contacted with the surface of the coil 1 for a long time, the length of the carbon brush 23 is gradually shortened, and the carbon brush 23 moves downwards under the action of gravity and magnetic force, so that the carbon brush 23 is ensured to be pressed on the upper surface of the coil 1 all the time; however, the gravity borne by the carbon brush 23 is gradually reduced due to abrasion, in order to ensure that the pressure of the carbon brush 23 on the upper surface of the coil 1 is always constant, after the carbon brush 23 moves downwards, the magnetic force borne by the carbon brush 23 should be increased, and the diameter difference between the difference compensation air bag and the soft sleeve 25 ensures that the distance between the upper magnetic block 27 and the lower magnetic block 26 is shorter as the carbon brush 23 moves downwards, the repulsion between the upper magnetic block 27 and the lower magnetic block 26 is larger as the distance between the upper magnetic block 27 and the lower magnetic block 26 is shorter, so that the pressure of the carbon brush 23 on the upper surface of the coil 1 is always constant by adjusting the mass of the carbon brush 23, the diameter difference between the difference compensation air bag and the soft sleeve 25, the friction coefficient between the carbon brush 23 and the coil 1, the magnetic field strengths of the upper magnetic block 27 and the lower magnetic block 26, and the like.
The second embodiment is as follows: in contrast to the first embodiment, please refer to the voltage stabilizer with intelligent protection function shown in fig. 5, the upper wall of the difference compensation airbag is made of elastic material, and the elastic coefficient of the upper wall of the difference compensation airbag is greater than the elastic coefficient of the sidewall of the difference compensation airbag, i.e. when the difference compensation airbag is inflated, the sidewall of the difference compensation airbag deforms before the upper wall of the difference compensation airbag.
Under the condition that the upper wall of the differential compensation air bag does not deform, the maximum volume of the differential compensation air bag is smaller than the rated working volume of the air cavity, and the rated working volume of the air cavity refers to: when the movable plate 24 is lowered from the initial limit height to the state that the lower end face of the movable plate 24 is abutted with the upper end face of the lower sleeve, the volume value of the air cavity is reduced;
in the embodiment, the heights of the upper sleeve and the middle sleeve are both smaller than that of the lower sleeve, the lower sleeve is made of elastic rubber, and the lower sleeve can be slightly deformed in the vertical direction; meanwhile, when the moving plate 24 is lowered from the initial limit height to the state that the lower end face of the moving plate 24 is abutted with the upper end face of the lower sleeve, the lowered height value is equal to three quarters of the height of the carbon brush 23 exposed at the lower side of the copper block 22;
when the carbon brush 23 is worn to three-fourths of the initial limit length, the carbon brush 23 enters the end of the service life, and the carbon brush 23 is required to be replaced; the time shifting plate 24 is lowered from the initial limit height to the position that the lower end face of the time shifting plate 24 is abutted with the upper end face of the lower sleeve, the reduced volume of the air cavity is equal to the rated working volume, the side wall of the differential compensation air bag reaches the maximum deformation value, under the condition, after the carbon brush 23 is worn again, the lower sleeve is compressed to generate deformation, the reduced volume of the air cavity is larger than the rated working volume, the upper wall of the differential compensation air bag generates deformation, and the upper wall of the differential compensation air bag protrudes upwards;
In this embodiment, the microswitch 29 is arranged at the upper end of the upper wall of the differential compensation air bag, the microswitch 29 is communicated with an external alarm system, and after the upper wall of the differential compensation air bag deforms, the microswitch 29 is turned on or off to change the alarm system, so that a worker is warned to replace the worn carbon brush in time, and the copper block 22 is prevented from contacting with the coil 1 to cause short circuit.
The third concrete embodiment: unlike the first or second embodiment, referring to the voltage stabilizer with intelligent protection function in fig. 6, a gap is formed between the side edge of the moving plate 24 and the inner wall of the housing 21, so as to reduce the friction of the sliding of the moving plate 24 and improve the flexibility of the carbon brush 23 moving downward automatically.
The lower end part of the side wall of the lower sleeve is provided with an air outlet, and the height distance between the air outlet and the upper end of the lower sleeve is greater than that of the middle sleeve so as to ensure that the air outlet is always kept open.
In the initial state of non-air intake of the differential compensation air bag, the lower end surface of the differential compensation air bag is lower than the inner wall of the upper side of the shell 21, and the periphery of the differential compensation air bag, which is lower than the inner wall of the upper side of the shell 21, is provided with an air inlet;
the air outlet and the air inlet are communicated through an air pipe, the air pipe is positioned in the shell 21, and the air pipe is positioned outside the moving plate 24.
Such an arrangement facilitates manufacture, assembly and disassembly.
Four specific embodiments: different from the first, second or third embodiments, please refer to fig. 7-9, in which the differential compensation unit 28 includes a magnetism increasing component; the same magnetism increasing components are arranged on the outer sides of the N pole and the S pole of the lower magnetic block 26.
The magnetism increasing assembly comprises an inner increasing plate 281, a middle increasing plate 282, an outer increasing plate 283 and a special-shaped air bag 284;
the inner increasing plate 281, the middle increasing plate 282 and the outer increasing plate 283 are all paramagnetic bodies or ferromagnetic pieces; the inner increasing plate 281, the middle increasing plate 282 and the outer increasing plate 283 are arranged in sequence from inside to outside relative to the lower magnetic block 26; the heights of the upper ends of the inner increasing plate 281, the middle increasing plate 282 and the outer increasing plate 283 are sequentially increased; the heights of the upper ends of the inner increasing plate 281, the middle increasing plate 282 and the outer increasing plate 283 are all higher than the height of the upper end of the lower magnetic block 26;
the special-shaped air bag 284 is communicated with the air cavity through an air pipe, and the arrangement of the air pipe is the same as that of the third embodiment;
the special-shaped air bag 284 is fixedly arranged on the upper end surface of the moving plate 24, and the special-shaped air bag 284 is positioned on the outer side of the lower magnetic block 26; the upper end surface of the special-shaped air bag 284 is in a step shape, the step is divided into three steps, namely an inner step, a middle step and an outer step from low to high, and the inner step, the middle step and the outer step are arranged in sequence from inside to outside relative to the lower magnetic block 26; the inner increasing plate 281, the middle increasing plate 282 and the outer increasing plate 283 are positioned at an inner step, a middle step and an outer step in sequence; the inner increasing plate 281, the middle increasing plate 282 and the outer increasing plate 283 slide on the inner step, the middle step and the outer step respectively;
The side walls of the inner step, the middle step and the outer step are deformation walls of the special-shaped air bag 284, and the deformation directions of the deformation walls are close to or far away from the downward magnetic block 26 along the radial direction of the moving plate 24; the inner additional plate 281, the middle additional plate 282 and the outer additional plate 283 are abutted with corresponding deformation walls; after the special-shaped air bag 284 is inflated, the deformation walls of the inner step, the middle step and the outer step deform and extend towards the direction of the lower magnetic block 26, and push the inner increasing plate 281, the middle increasing plate 282 and the outer increasing plate 283 to move towards the direction of the lower magnetic block 26; the deformable wall is a bellows, and such structures are common and not described in detail herein.
When the inner increasing plates 281 of the inner steps at two sides of the lower magnetic block 26 are abutted to the side wall of the lower magnetic block 26 first, the inner increasing plates 281 are attracted by the lower magnetic block 26, and because the height of the upper end of the inner increasing plates 281 is higher than that of the upper end of the lower magnetic block 26, the inner increasing plates 281 are magnetized to generate a gap field, and the gap field can concentrate magnetic lines of force, so that the attraction force and the magnetic density can be improved, the magnetic field is enlarged, and the repulsive force between the magnetic field and the upper magnetic block 27 is improved;
when the middle increasing plate 282 and the outer increasing plate 283 are sequentially attached to the outer side of the lower magnetic block 26 due to the descending of the moving plate 24, the repulsive force between the lower magnetic block 26 and the upper magnetic block 27 is increased due to the increasing of the increasing plates, thereby achieving the effect of increasing the pressure of the carbon brush 23.
The scheme of the plate-increasing assembly consisting of more than three or two plate-increasing plates can be developed on the basis of the embodiment.
The fifth concrete embodiment: on the basis of the fourth embodiment, please refer to fig. 10 for a voltage stabilizer with intelligent protection function, the increasing plates are all in a Z shape, and when the inner increasing plate 281 or the middle increasing plate 282 or the outer increasing plate 283 on both sides are attached to the outer side of the lower magnetic block 26, the increasing plate structure for increasing the height of the lower magnetic block 26 is located right above the lower magnetic block 26, i.e. located in the relative range of the lower magnetic block 26 and the upper magnetic block 27, and the lifting effect on the repulsive force can be enlarged compared with the fourth embodiment.
Claims (7)
1. The utility model provides a stabiliser with intelligence protect function, includes coil (1), carbon brush (23) and drive division (3), its characterized in that: the pressure of the carbon brush (23) for pressing the coil (1) is constant, and the pressure is adjusted by the protection part (2); the protection part (2) comprises
The repulsion unit is used for providing pressure towards the coil (1) for the carbon brush (23); the repulsion unit comprises an upper magnetic block (27) and a lower magnetic block (26) with the same magnetism; the lower magnetic block (26) is directly or indirectly connected with the carbon brush (23); the direction of magnetic repulsion between the upper magnetic block (27) and the lower magnetic block (26) is parallel to the moving direction of the carbon brush (23); and the number of the first and second groups,
The difference compensation unit is connected with the repulsion unit and adjusts the pressure provided by the repulsion unit; the differential compensation unit comprises an air cavity, an air passage and differential compensation output; the air cavity is a sealed cavity with variable volume, and the volume value is linearly and negatively correlated with the moving value of the carbon brush (23) towards the coil (1); the air channel is communicated with the air cavity and the difference compensation output so that the difference compensation output receives the gas exhausted by the air cavity; the difference compensation output is connected with the upper magnetic block (27) and/or the lower magnetic block (26) and is driven by gas to start;
wherein, the pressure value provided by the repulsion unit is in linear positive correlation with the moving value of the carbon brush (23) towards the coil (1).
2. The voltage regulator with intelligent protection function according to claim 1, wherein: the distance between the upper magnetic block (27) and the lower magnetic block (26) is in positive linear correlation with the moving value of the carbon brush (23) towards the coil (1).
3. The voltage regulator with intelligent protection function according to claim 1, wherein: the magnetic field intensity of the upper magnetic block (27) and/or the lower magnetic block (26) is in positive linear correlation with the moving value of the carbon brush (23) towards the coil (1).
4. The voltage regulator with intelligent protection function according to claim 1, wherein: the difference compensation output comprises a difference compensation air bag; the difference compensation air bag is connected with the upper magnetic block (27); the difference compensation air bag is made of flexible or elastic materials and has the deformation capacity towards the lower magnetic block (26); under the condition of the same gas quantity change, the deformation quantity of the difference compensation gas bag towards the direction of the lower magnetic block (26) is larger than the deformation quantity of the gas cavity towards the direction of the lower magnetic block (26).
5. The voltage regulator with intelligent protection function according to claim 4, wherein: the differential compensation air bag comprises at least two bag walls with different elastic coefficients; when the gas received by the differential compensation air bag exceeds a limited threshold value, the bag wall with the highest elastic coefficient deforms; the capsule wall with the highest elastic coefficient is abutted against the microswitch (29), and the state switching of the microswitch (29) is controlled by the deformation of the capsule wall with the highest elastic coefficient; the micro switch (29) is communicated with an external alarm system.
6. The voltage regulator with intelligent protection function according to claim 1, wherein: the differential compensation output comprises a magnetism increasing assembly, and the same magnetism increasing assembly is arranged on the outer sides of the N pole and the S pole of the lower magnetic block (26); the magnetism increasing component comprises a plurality of increasing plates made of paramagnets or ferromagnetic pieces; the plurality of additional plates and the lower magnetic blocks (26) are distributed on the same straight line from inside to outside relative to the lower magnetic blocks (26) in sequence; the heights of the upper ends of the additional plates are all higher than the heights of the upper ends of the lower magnetic blocks (26), and the height difference values of the upper ends of the different additional plates and the lower magnetic blocks (26) are in positive linear correlation with the distance value of the corresponding lower magnetic block (26); the plate increasing plate is directly or indirectly driven by the gas exhausted from the gas cavity; the additional plate can move towards the lower magnetic block (26) until the additional plate is abutted with the lower magnetic block (26) to form a new lower magnetic block (26).
7. The voltage regulator with intelligent protection function according to claim 6, wherein: the magnetism increasing assembly further comprises a special-shaped air bag (284); the upper end surface of the special-shaped air bag (284) is in a step shape, the number of steps is matched with the number of the increased plates, and the step side wall of each step is a deformation wall of the special-shaped air bag (284); the deformation wall can be driven by gas to deform along the direction of the lower magnetic block (26); the increasing plate arranged on each step is abutted against the deformation wall and can move along the direction of the lower magnetic block (26) under the drive of the deformation wall; the deformation coefficient of the deformation wall close to the lower magnetic block (26) is smaller than or equal to that of the deformation wall far away from the lower magnetic block (26).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210071776.7A CN114400481B (en) | 2022-01-21 | 2022-01-21 | Voltage stabilizer with intelligent protection function |
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| CN202210071776.7A CN114400481B (en) | 2022-01-21 | 2022-01-21 | Voltage stabilizer with intelligent protection function |
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| CN114400481B true CN114400481B (en) | 2022-07-29 |
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| CN201466452U (en) * | 2009-07-02 | 2010-05-12 | 陈庆度 | Novel electric brush component for voltage regulator and voltage stabilizer |
| TWM505750U (en) * | 2015-03-24 | 2015-07-21 | yuan-ming Zhang | Rotary type electrical connection apparatus |
| CN110994316A (en) * | 2019-12-17 | 2020-04-10 | 淄博职业学院 | Automatic switching type electric carbon brush and using method thereof |
| CN111490425A (en) * | 2020-03-13 | 2020-08-04 | 浙江城电电气有限公司 | Voltage stabilizer |
| CN211208226U (en) * | 2019-09-30 | 2020-08-07 | 衢州三源汇能电子有限公司 | Adjustable transformer |
| CN111585412A (en) * | 2020-07-01 | 2020-08-25 | 俞晓 | DC motor with constant voltage brush |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN200987113Y (en) * | 2006-08-22 | 2007-12-05 | 胡晓杰 | Photoelectric electromagnet commutator for permanent-magnet electric motor |
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| CN2753018Y (en) * | 2004-12-06 | 2006-01-18 | 贺雷 | Electromagnetic brush |
| CN201365171Y (en) * | 2009-02-27 | 2009-12-16 | 韩登利 | Carbon brush pressure self-regulating synchronous motor carbon brush |
| CN201466452U (en) * | 2009-07-02 | 2010-05-12 | 陈庆度 | Novel electric brush component for voltage regulator and voltage stabilizer |
| TWM505750U (en) * | 2015-03-24 | 2015-07-21 | yuan-ming Zhang | Rotary type electrical connection apparatus |
| CN211208226U (en) * | 2019-09-30 | 2020-08-07 | 衢州三源汇能电子有限公司 | Adjustable transformer |
| CN110994316A (en) * | 2019-12-17 | 2020-04-10 | 淄博职业学院 | Automatic switching type electric carbon brush and using method thereof |
| CN111490425A (en) * | 2020-03-13 | 2020-08-04 | 浙江城电电气有限公司 | Voltage stabilizer |
| CN111585412A (en) * | 2020-07-01 | 2020-08-25 | 俞晓 | DC motor with constant voltage brush |
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| CN114400481A (en) | 2022-04-26 |
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