CN111327143B - Automobile alternating-current generator capable of reducing temperature rise and method for reducing temperature rise - Google Patents
Automobile alternating-current generator capable of reducing temperature rise and method for reducing temperature rise Download PDFInfo
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- CN111327143B CN111327143B CN202010270052.6A CN202010270052A CN111327143B CN 111327143 B CN111327143 B CN 111327143B CN 202010270052 A CN202010270052 A CN 202010270052A CN 111327143 B CN111327143 B CN 111327143B
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/14—Means for supporting or protecting brushes or brush holders
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/20—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/19—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/28—Cooling of commutators, slip-rings or brushes e.g. by ventilating
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- Power Engineering (AREA)
- Motor Or Generator Cooling System (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
The invention discloses an automobile alternating-current generator capable of reducing temperature rise, and relates to the technical field of automobile accessories. According to the invention, through the good matching among the structures, the single heat dissipation column is replaced by the two heat dissipation cylinders, and the two heat dissipation cylinders can be replaced alternately after the temperature of any heat dissipation cylinder is too high, so that the reciprocating operation is carried out, on one hand, the heat dissipation effect and efficiency are improved, and on the other hand, the service life of a heat dissipation object is prolonged.
Description
Technical Field
The invention relates to the technical field of automobile accessories, in particular to an automobile alternating-current generator capable of reducing temperature rise and a method for reducing temperature rise.
Background
An environment-friendly automobile generator regulator bracket as disclosed in Chinese patent CN201910367710.0, the invention comprises a carbon brush mounting seat body, two mounting holes are arranged on the front side of the carbon brush mounting seat body, a groove body is arranged on the rear side of the carbon brush mounting seat body, a strip-shaped heat dissipation cavity is also arranged on the carbon brush mounting seat body, the length of the heat dissipation cavity extends up and down, the heat dissipation cavity is positioned between the groove body and the mounting holes, the upper end and the lower end of the heat dissipation cavity are respectively open and closed, two heat dissipation cavities are respectively opposite to the two mounting holes, the hole wall of the upper end of the mounting hole is provided with an exhaust hole which enables the mounting hole to be communicated with the corresponding heat dissipation cavity, a semiconductor refrigeration sheet is fixed in each of the two heat dissipation cavities, the heat dissipation cavity is divided into an upper cavity and an exhaust hole which are not communicated with each other by the semiconductor refrigeration sheet, the upper cavity is communicated with the upper cavity, cooling water is stored in the lower cavity, a heat dissipation column is fixedly arranged in the cooling water, the upper end of the heat dissipation column is contacted with the thermal surface of the semiconductor refrigeration sheet, the cold surface of the semiconductor refrigeration sheet is positioned in the upper cavity, and the invention has the advantage of improving the working stability of the carbon brush.
But cool down the hot face of semiconductor refrigeration piece through utilizing single heat dissipation post among this scheme, then when the temperature of the hot face of semiconductor refrigeration piece was too high, because single heat dissipation post contacts with the hot face of semiconductor refrigeration piece all the time to lead to single heat dissipation post to be in overheated condition all the time, be difficult to with the heat dissipation, and then after for a long time, influence the life of heat dissipation post easily.
Disclosure of Invention
The invention aims to provide an automobile alternating-current generator capable of reducing temperature rise and a method for reducing temperature rise, which have the advantages that a single heat dissipation column is replaced by two heat dissipation cylinders, and the two heat dissipation cylinders can be replaced alternately after the temperature of any heat dissipation cylinder is too high, so that the effect of heat dissipation is improved, the effect of prolonging the service life of a heat dissipation object is improved, and the problem that in the prior art, the single heat dissipation column is always in an overheated state, heat is difficult to dissipate and the service life of the heat dissipation column is easily influenced after a long time because the single heat dissipation column is always in contact with the hot surface of a semiconductor refrigeration piece when the temperature of the hot surface of the semiconductor refrigeration piece is too high is solved.
In order to achieve the purpose, the invention provides the following technical scheme: an automobile alternating-current generator capable of reducing temperature rise comprises a stator assembly, a belt pulley, a front end cover, a rear end cover, a rectifier bridge, a regulator, a rotor assembly and a carbon brush cooling device;
the carbon brush cooling device comprises a carbon brush mounting seat body, a semiconductor refrigerating sheet and a cooling water cavity, wherein the outer wall of the carbon brush mounting seat body is fixedly connected with a piston cylinder, the inner wall of the piston cylinder is connected with a piston plate in a vertically sealed sliding manner, the cavity wall of the cooling water cavity, the cylinder wall of the piston cylinder and the plate wall of the piston plate are jointly connected with a heat dissipation cylinder in a vertically sealed alternate sliding manner, a mercury medium is jointly stored in the cavity formed by the upper surface of the piston plate and the inner wall of the piston cylinder, the outer wall of the carbon brush mounting seat body is fixedly connected with a support shaft, the shaft wall of the support shaft is connected with a turntable in a limiting and rotating manner, the lower surface of the piston plate is connected with a rotating shaft in a limiting and rotating manner, the lower end of the rotating shaft extends out of the cylinder wall of the piston cylinder and drives the turntable to turn through a first transmission mechanism, and the outer wall of the carbon brush mounting seat body is provided with a resetting mechanism for resetting the turntable in a steering manner, the carbon brush mounting seat comprises a carbon brush mounting seat body and is characterized in that concave moving blocks are connected to the front portion and the rear portion of the outer wall of the carbon brush mounting seat body in a limiting sliding mode, the rotary plate drives the concave moving blocks to move through a second transmission mechanism, the concave moving blocks drive the two heat dissipation cylinders to move up and down alternately through a third transmission mechanism, a third compression spring is fixedly connected to the lower surface of the piston plate, and the lower end of the third compression spring is fixedly connected with the bottom of the piston cylinder.
The reset mechanism comprises a sleeve, the sleeve is fixedly connected to the outer wall of the carbon brush mounting seat body, a first compression spring is fixedly connected to the bottom of the sleeve, a reset rod is fixedly connected to the upper end of the first compression spring, a reset arm is hinged to the top of the reset rod, and the top of the reset arm is hinged to the outer wall of the rotary table.
Preferably, the first transmission mechanism comprises a first spiral groove, a second spiral groove and two connecting columns, the first spiral groove and the second spiral groove are arranged around the shaft arm of the rotating shaft in a half-circle mode, each of the first spiral groove and the second spiral groove comprises a top groove opening and a bottom groove opening, the first spiral groove and the second spiral groove are communicated with the bottom groove opening through the top groove openings, the groove wall depth of each top groove opening is larger than that of the bottom groove opening, the two connecting columns are fixedly connected to the outer wall of the rotating disc, one ends, far away from the rotating disc, of the two connecting columns are fixedly close to a first pressing portion, the bottom of the rotating shaft is fixedly connected with a pressing plate, the lower surface of the piston cylinder is fixedly connected with a supporting plate, pressing columns penetrate through the left side and the right side of the plate wall of the supporting plate, and second compression springs are fixedly connected to opposite sides between the pressing columns and the carbon brush mounting base body, one end of the pressure supporting column extends into the connection part of the groove wall between the first spiral groove and the second spiral groove.
Preferably, the second transmission mechanism comprises a rotary column, the rotary column is fixedly connected to the outer wall of the rotary disc, one end, far away from the rotary disc, of the rotary column is fixedly connected with a second abutting portion, and the second abutting portion abuts against the concave-shaped moving block concave portion.
Preferably, the third transmission mechanism comprises two oblique grooves, the two oblique grooves are formed in the concave moving block, sliding columns are connected to the groove walls of the two oblique grooves in a sliding mode, connecting arms are fixedly connected to the column arms of the two sliding columns, and the tops of the two connecting arms are fixedly connected with the outer walls of the two heat dissipation cylinders respectively.
Preferably, the outer wall of the carbon brush mounting seat body is provided with a sliding groove, the carbon brush mounting seat body is connected with a sliding block in a front-back limiting sliding mode through the sliding groove, and the right side of the sliding block is fixedly connected with the left side of the concave moving block.
Preferably, a method for reducing temperature rise of an automobile alternating current generator is further provided, which is characterized by comprising the following steps:
s1: in the heat dissipation process, along with the temperature rise of the heat dissipation cylinder with one side in contact with the hot surface of the semiconductor refrigeration piece, part of heat is transferred to the mercury medium to cause the mercury medium to expand when heated, the piston plate moves downwards in the process of expansion of the mercury medium, the turntable gradually rotates anticlockwise through the process of downward movement of the piston plate and the transmission of the rotating shaft and the first transmission mechanism, when a hinge joint between the reset arm and the turntable crosses a longitudinal central axis of the turntable, the turntable rapidly rotates by utilizing the upward elastic restoring force of the first compression spring, the concave-shaped moving block also rapidly moves in the process of transmission of the second transmission mechanism, the two heat dissipation cylinders alternately slide through the process of movement of the concave-shaped moving block and the transmission of the third transmission mechanism, and then the heat dissipation cylinder in contact with the hot surface of the semiconductor refrigeration piece is replaced, and the heat dissipation cylinder which is originally contacted with the hot surface of the semiconductor refrigeration piece is separated from the semiconductor refrigeration piece and is contacted with the air in a large area;
s2: after the heat dissipation cylinder is replaced in step S1, the mercury medium starts to gradually cool and contract, and at this time, when the temperature of the heat dissipation cylinder, which is in contact with the hot surface of the semiconductor cooling plate on the other side, rises, a part of heat is transferred to the mercury medium again, so that the mercury medium is heated and expands again, and the above mechanism is repeatedly operated by the process of the re-expansion of the mercury medium, and the heat dissipation cylinder is replaced alternately and circularly.
Compared with the prior art, the invention has the following beneficial effects:
firstly, the invention has the advantages that through the arrangement of the piston cylinder, the piston plate, the heat dissipation cylinders, the mercury medium, the supporting shaft, the turntable, the rotating shaft, the concave-shaped moving block, the connecting column, the first pressing part, the pressing plate, the rotating column, the second pressing part, the inclined groove, the sliding column, the connecting arm and the third compression spring, the single heat dissipation column is replaced by two heat dissipation cylinders, and after the temperature of any heat dissipation cylinder is overhigh, the two heat dissipation cylinders can be replaced alternately, so that the reciprocating motion is realized, on one hand, the heat dissipation effect and efficiency are improved, on the other hand, the service life of a heat dissipation object is prolonged, the problem that in the prior art, the single heat dissipation column is always in an overheated state due to the fact that the single heat dissipation column is always in contact with the hot surface of the semiconductor refrigeration piece when the temperature of the hot surface of the semiconductor refrigeration piece is overhigh is solved, the heat is difficult to be dissipated, and the service life of the heat dissipation column is easily influenced after a long time.
Through the sleeve, the first compression spring, the reset rod and the reset arm, when a hinge point between the reset arm and the rotary table crosses a longitudinal central axis of the rotary table, the rotary table can rapidly rotate to a state shown in a figure 2 or a figure 9 by utilizing upward elastic restoring force of the first compression spring, so that when the temperature of any one heat dissipation cylinder is too high, the two heat dissipation cylinders can be rapidly and alternately replaced, and the effect of continuously dissipating heat on the hot surface of the semiconductor refrigerating sheet is ensured.
Thirdly, through the arrangement of the first spiral groove, the second spiral groove, the top notch, the bottom notch, the supporting plate, the abutting column and the second compression spring, in combination with the process that the rotating shaft moves downwards, when the abutting column moves to the top notch, because the depth of the groove wall of the top groove opening is larger than that of the groove wall of the bottom groove opening, the pressure column slides into the top groove opening of the second spiral groove from the first spiral groove in figure 8, and finally, the rotating shaft starts to move upwards in the process of mercury medium shrinkage, and then the first spiral groove and the second spiral groove are arranged in a half-circle way around the rotating shaft, so that the rotating shaft rotates for a half-circle in the upward returning process, the reciprocating operation is carried out in such a way that the rotating shaft can rotate for a half-circle every time the rotating shaft moves in the upward returning process, and then guaranteed when pivot downwardly moving at every turn, all can support and press the first portion of pressing of corresponding one side, and then realized the carousel effect that turns to back and forth.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the generator of the present invention;
FIG. 2 is a cross-sectional view taken along line A-A of FIG. 3 and taken in front elevation, in accordance with the present invention;
FIG. 3 is a cross-sectional view of the structure of FIG. 2 taken along line B-B in accordance with the present invention;
FIG. 4 is a left side view of the sleeve of the present invention with the turntable, first compression spring, reset lever and reset arm structure in section;
FIG. 5 is a front view of a partial structure of the present invention;
FIG. 6 is a front view of the rotary shaft of FIG. 5 rotated ninety degrees to a configuration in accordance with the present invention;
FIG. 7 is a front view of the rotary shaft of FIG. 6 rotated ninety degrees to a configuration in accordance with the present invention;
FIG. 8 is a front view of the rotary shaft of FIG. 7 rotated ninety degrees to a configuration in accordance with the present invention;
FIG. 9 is a first state diagram of the structure of the present invention;
FIG. 10 is a second state diagram of the structure of the present invention;
FIG. 11 is a right side view of the generator of the present invention in its entirety;
fig. 12 is a left side view of the entire generator of the present invention.
In the figure: 1-carbon brush mounting seat body, 2-semiconductor refrigeration piece, 3-cooling water cavity, 4-piston cylinder, 5-piston plate, 6-heat dissipation cylinder, 7-mercury medium, 8-supporting shaft, 9-rotating disc, 10-rotating shaft, 11-concave moving block, 12-sleeve, 13-first compression spring, 14-reset rod, 15-reset arm, 16-first spiral groove, 17-second spiral groove, 18-top notch, 19-bottom notch, 20-connecting column, 21-first pressing part, 22-pressing plate, 23-supporting plate, 24-pressing column, 25-second compression spring, 26-rotating column, 27-second pressing part, 28-oblique groove, 29-sliding column, 30-connecting arm, 31-chute, 32-slide block, 33-third compression spring, 34-stator assembly, 35-belt pulley, 36-front end cover, 37-rear end cover, 38-rectifier bridge, 39-regulator and 40-rotation assembly.
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 to 12, the present invention provides a technical solution: an automobile alternating-current generator capable of reducing temperature rise comprises a stator assembly 34, a belt pulley 35, a front end cover 36, a rear end cover 37, a rectifier bridge 38, a regulator 39, a rotor assembly 40 and a carbon brush cooling device;
the carbon brush cooling device comprises a carbon brush mounting seat body 1, a semiconductor refrigerating sheet 2 and a cooling water cavity 3 which are equivalent to the carbon brush mounting seat body, the semiconductor refrigerating sheet and a cavity where cooling water is located disclosed in the specific embodiment of the background art comparison document specification, a single heat dissipation column in the comparison document is replaced by two heat dissipation cylinders 6, the materials of the two heat dissipation cylinders 6 are the same as those of the heat dissipation column disclosed in the comparison document, the outer wall of the carbon brush mounting seat body 1 is fixedly connected with a piston cylinder 4, the upper and lower sealing sliding connection of the inner wall of the piston cylinder 4 is provided with a piston plate 5, the upper and lower sealing alternate sliding connection of the cavity wall of the cooling water cavity 3, the cylinder wall of the piston cylinder 4 and the plate wall of the piston plate 5 is provided with the heat dissipation cylinders 6, the upper surface of the piston plate 5 and the cavity formed by the inner wall of the piston cylinder 4 are jointly stored with mercury medium 7, the outer wall of the carbon brush mounting seat body 1 is fixedly connected with a support shaft 8, the spacing rotation of the axle wall of back shaft 8 is connected with carousel 9, the spacing rotation of the lower surface of piston plate 5 is connected with pivot 10, the lower extreme of pivot 10 stretches out the section of thick bamboo wall of piston cylinder 4 and turns to through first drive mechanism drive carousel 9, the outer wall of carbon brush mount pad body 1 is provided with the canceling release mechanical system that supplies carousel 9 to turn to reset, spacing sliding connection has type of calligraphy movable block 11 around the outer wall of carbon brush mount pad body 1, carousel 9 drives type of calligraphy movable block 11 displacement through second drive mechanism, type of calligraphy movable block 11 drives two heat-dissipating cylinders 6 through third drive mechanism and moves from top to bottom in turn, the lower fixed surface of piston plate 5 is connected with third compression spring 33, the lower extreme of third compression spring 33 and the bottom fixed connection in the 4 section of thick bamboos of piston cylinder.
The resetting mechanism comprises a sleeve 12, the sleeve 12 is fixedly connected to the outer wall of the carbon brush mounting seat body 1, a first compression spring 13 is fixedly connected to the bottom in the sleeve 12, a resetting rod 14 is fixedly connected to the upper end of the first compression spring 13, a resetting arm 15 is hinged to the top of the resetting rod 14, the top of the resetting arm 15 is hinged to the outer wall of the rotary table 9, when the resetting mechanism is used, as shown in figure 3, along with the temperature rise of the heat dissipation cylinder 6 caused by the contact of one side of the heat dissipation cylinder with the hot surface of the semiconductor refrigerating sheet 2 (the hot surface is the lower surface of the semiconductor refrigerating sheet 2), a part of heat of the mercury is transferred to the mercury medium 7 to cause the mercury medium 7 to be heated and expanded, the process that the mercury medium 7 is expanded overcomes the elastic force of the third compression spring 33, so that the piston plate 5 moves towards the third compression spring 33 and compresses the third compression spring 33, and the process that the piston plate 5 moves towards the third compression spring 33 is transmitted by the rotating shaft 10 and the first transmission mechanism, the turntable 9 is gradually rotated in the counterclockwise direction in the direction shown in fig. 3, when the hinge point between the reset arm 15 and the turntable 9 crosses the longitudinal central axis of the turntable 9, the turntable 9 is rapidly rotated to the state shown in fig. 9 by the upward elastic restoring force of the first compression spring 13, in the process, the concave moving block 11 is also rapidly moved rightwards in the direction shown in fig. 9 by the transmission of the second transmission mechanism, the two heat-dissipating cylinders 6 are alternately slid and are in the state shown in fig. 3 to 9 by the process that the concave moving block 11 is moved rightwards in the direction shown in fig. 9 and the transmission of the third transmission mechanism, so that the effect of replacing the heat-dissipating cylinder 6 in contact with the hot surface of the semiconductor chilling plate 2 is achieved, and the heat-dissipating cylinder 6 originally in contact with the hot surface of the semiconductor chilling plate 2 is separated from the semiconductor chilling plate 2 and is in contact with air, thereby effectively cooling the heat-dissipating cylinder 6 in a large area, after the heat dissipation cylinder 6 is replaced, the mercury medium 7 begins to gradually cool and contract to the state shown in fig. 10, at the moment, when the other side of the heat dissipation cylinder 6 is in contact with the hot surface of the semiconductor refrigeration piece 2 (the hot surface is the lower surface of the semiconductor refrigeration piece 2), and the temperature of the heat dissipation cylinder 6 rises, part of heat of the heat dissipation cylinder is transferred to the mercury medium 7 again, the mercury medium 7 is heated again to expand, the process that the mercury medium 7 expands again is achieved, the mechanism operates repeatedly, the effect of replacing the heat dissipation cylinder 6 in an alternate circulation mode is achieved, and the cooling speed of the hot surface of the semiconductor refrigeration piece 2 is accelerated indirectly.
The first transmission mechanism comprises a first spiral groove 16, a second spiral groove 17 and two connecting columns 20, the first spiral groove 16 and the second spiral groove 17 are arranged around the shaft arm of the rotating shaft 10 in a half-circle mode, the first spiral groove 16 and the second spiral groove 17 respectively comprise a top notch 18 and a bottom notch 19, the first spiral groove 16 and the second spiral groove 17 are communicated with each other through the top notch 18 and the bottom notch 19, the depth of the groove wall of the top notch 18 is larger than that of the groove wall of the bottom notch 19, the two connecting columns 20 are fixedly connected to the outer wall of the rotating disc 9, one ends, far away from the rotating disc 9, of the two connecting columns 20 are fixedly close to a first pressing part 21, the bottom of the rotating shaft 10 is fixedly connected with a pressing plate 22, the lower surface of the piston cylinder 4 is fixedly connected with a supporting plate 23, pressing columns 24 penetrate through the left and right sides of the plate wall of the supporting plate 23, and opposite sides between the pressing columns 24 and the carbon brush mounting seat body 1 are fixedly connected with a second compression spring 25, one end of the pressure column 24 extends into the connection between the groove walls of the first spiral groove 16 and the second spiral groove 17, as shown in fig. 8, in the process of downward movement of the rotating shaft 10, after the pressure column 24 moves to the top groove opening 18, because the groove wall depth of the top groove opening 18 is greater than that of the bottom groove opening 19, the pressure column 24 slides into the top groove opening 18 of the second spiral groove 17 from the first spiral groove 16 in fig. 8, and finally, in the process of contraction of the mercury medium 7, the rotating shaft 10 starts to move upward, and then the first spiral groove 16 and the second spiral groove 17 are both arranged around the rotating shaft 10 in a half-circle manner, so that the rotating shaft 10 rotates in a half-circle manner in the process of upward return, and thus, the rotating shaft 10 can rotate in a half-circle manner when moving upward return every time.
The second transmission mechanism comprises a rotating column 26, the rotating column 26 is fixedly connected to the outer wall of the rotating disc 9, one end, far away from the rotating disc 9, of the rotating column 26 is fixedly connected with a second abutting portion 27, the second abutting portion 27 abuts against the concave moving block 11, the rotating process of the rotating disc 9 and the transmission of the rotating column 26 enable the second abutting portion 27 to rotate along with the rotating disc 9, the rotating process of the second abutting portion 27 and the process of abutting against the concave moving block 11 through the second abutting portion 27 enable the concave moving block 11 to move leftwards or rightwards in the direction shown in the figure 9.
The third transmission mechanism comprises two oblique grooves 28, the two oblique grooves 28 are formed in the concave moving block 11, sliding columns 29 are connected to the groove walls of the two oblique grooves 28 in a sliding mode, connecting arms 30 are fixedly connected to the column arms of the two sliding columns 29, the tops of the two connecting arms 30 are fixedly connected with the outer walls of the two heat dissipation cylinders 6 respectively, and the two heat dissipation cylinders 6 can slide up and down alternately in the process that the concave moving block 11 moves leftwards or rightwards through the linkage of the sliding columns 29 along the groove walls of the oblique grooves 28 and the two connecting arms 30 in combination with the oblique grooves 28, the sliding columns 29 and the connecting arms 30 in the process that the concave moving block 11 moves rightwards.
The outer wall of the carbon brush mounting seat body 1 is provided with a sliding groove 31, the carbon brush mounting seat body 1 is connected with a sliding block 32 in a front-back limiting sliding mode through the sliding groove 31, the right side of the sliding block 32 is fixedly connected with the left side of the concave moving block 11, and the concave moving block 11 can slide in a front-back limiting mode through the sliding block 32 in a limiting sliding process along the groove wall of the sliding groove 31.
Also provided is a temperature-rise reducing method of the temperature-rise reducing automobile alternating-current generator, comprising the following steps:
s1: in the heat dissipation process, along with the temperature rise of the heat dissipation cylinder 6 with one side in contact with the hot surface of the semiconductor chilling plate 2, a part of heat is transferred to the mercury medium 7 to cause the mercury medium 7 to expand when heated, the piston plate 5 moves downwards, the rotating disc 9 rotates anticlockwise gradually through the downward moving process of the piston plate 5 and the transmission of the rotating shaft 10 and the first transmission mechanism, when the hinge point between the reset arm 15 and the rotating disc 9 crosses the longitudinal central axis of the rotating disc 9, the rotating disc 9 rotates rapidly through the upward elastic restoring force of the first compression spring 13, the concave moving block 11 also moves rapidly through the transmission of the second transmission mechanism in the process, the two heat dissipation cylinders 6 slide alternately through the moving process of the concave moving block 11 and the transmission of the third transmission mechanism, and then the heat dissipation cylinder 6 in contact with the hot surface of the semiconductor chilling plate 2 is replaced, and the heat radiation cylinder 6 originally contacted with the hot surface of the semiconductor refrigerating sheet 2 is separated from the semiconductor refrigerating sheet 2 and contacted with the air in a large area;
s2: after the heat dissipation cylinder 6 is replaced in step S1, the mercury medium 7 starts to gradually cool and contract, and at this time, when the temperature of the heat dissipation cylinder 6, which is in contact with the hot surface of the semiconductor chilling plate 2 on the other side, rises, a part of heat is transferred to the mercury medium 7 again, the mercury medium 7 is heated and expanded again, and the process of re-expansion of the mercury medium 7 causes the above mechanism to operate repeatedly, so that the heat dissipation cylinder 6 is replaced in an alternate cycle.
The working principle is as follows: when the automobile alternating-current generator with reduced temperature rise is used, as shown in fig. 3, along with the temperature rise of the heat dissipation cylinder 6 with one side in contact with the hot surface (the hot surface is the lower surface of the semiconductor refrigeration piece 2) of the semiconductor refrigeration piece 2, a part of heat of the semiconductor refrigeration piece is transferred to the mercury medium 7 to cause the mercury medium 7 to expand when heated, the process of expansion of the mercury medium 7 overcomes the elastic force of the third compression spring 33 to enable the piston plate 5 to move towards the direction of the third compression spring 33 and compress the third compression spring 33, the process of movement towards the direction of the third compression spring 33 by the piston plate 5 and the transmission of the rotating shaft 10 enable the pressing plate 22 to press the first pressing part 21, then the rotating disc 9 gradually rotates anticlockwise through the linkage of the connecting column 20, the process of rotation of the rotating disc 9 and the linkage of the rotating column 26 enable the second pressing part 27 to synchronously rotate, then, along with the rotation process of the turntable 9, when the hinge point between the reset arm 15 and the turntable 9 crosses the longitudinal central axis of the turntable 9, the turntable 9 is rapidly rotated to the state shown in fig. 9 by the upward elastic restoring force of the first compression spring 13, in this process, the second pressing part 27 presses the concave part of the concave-shaped moving block 11 rightwards in the direction shown in fig. 9, then the concave-shaped moving block 11 is also rapidly rightwards in the direction shown in fig. 9, the process of moving the concave-shaped moving block 11 rightwards in the direction shown in fig. 9 is performed, the process of sliding along the groove wall of the inclined groove 28 through the sliding column 29 is linked with the two connecting arms 30, so that the two heat-dissipating cylinders 6 alternately slide and are in the state shown in fig. 3 to 9, and then the effect of replacing the heat-dissipating cylinder 6 in contact with the hot surface of the semiconductor chilling plate 2 is achieved, and the heat-dissipating cylinder 6 originally in contact with the hot surface of the semiconductor chilling plate 2 is separated from the semiconductor chilling plate 2 and is in large area in contact with air, therefore, the heat dissipation cylinder 6 is effectively cooled, when the heat dissipation cylinder 6 is replaced, the mercury medium 7 starts to gradually cool and shrink, as shown in fig. 8, when the pressure column 24 moves to the top notch 18, because the depth of the groove wall of the top notch 18 is greater than that of the groove wall of the bottom notch 19, then the pressure column 24 slides into the top notch 18 of the second spiral groove 17 from the first spiral groove 16 in fig. 8, finally, in the process of shrinking the mercury medium 7, the rotating shaft 10 starts to move upwards, and further, the first spiral groove 16 and the second spiral groove 17 are arranged around the rotating shaft 10 in a half-circle manner, so that the rotating shaft 10 rotates in a half-circle manner in the upwards returning process to the state shown in fig. 10, at the moment, when the other side is contacted with the hot surface (the hot surface is the lower surface of the semiconductor chilling plate 2) of the heat dissipation cylinder 6 and the temperature of the heat dissipation cylinder rises, a part of the heat is transferred to the mercury medium 7 again, the expansion of the mercury medium 7 caused by heating is caused again, and the repeated operation of the mechanism is realized by the process of the re-expansion of the mercury medium 7, so that the effect of alternately and circularly replacing the heat dissipation cylinder 6 is achieved, and the cooling speed of the hot surface of the semiconductor refrigerating sheet 2 is indirectly accelerated.
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 (4)
1. An automobile alternating-current generator capable of reducing temperature rise comprises a stator assembly (34), a belt pulley (35), a front end cover (36), a rear end cover (37), a rectifier bridge (38), a regulator (39), a rotor assembly (40) and a carbon brush cooling device;
carbon brush heat sink include carbon brush mount pad body (1), semiconductor refrigeration piece (2) and cooling water cavity (3), its characterized in that: the outer wall of the carbon brush mounting seat body (1) is fixedly connected with a piston cylinder (4), the inner wall of the piston cylinder (4) is connected with a piston plate (5) in a vertically sealing sliding mode, the cavity wall of the cooling water cavity (3), the cylinder wall of the piston cylinder (4) and the plate wall of the piston plate (5) are jointly connected with a heat dissipation cylinder (6) in a vertically sealing alternative sliding mode, mercury media (7) are jointly stored on the upper surface of the piston plate (5) and the cavity formed by the inner wall of the piston cylinder (4), a support shaft (8) is fixedly connected with the outer wall of the carbon brush mounting seat body (1), a turntable (9) is connected with the shaft wall of the support shaft (8) in a limiting rotating mode, a rotating shaft (10) is connected with the lower surface of the piston plate (5) in a limiting rotating mode, the lower end of the rotating shaft (10) extends out of the cylinder wall of the piston cylinder (4) and drives the turntable (9) to rotate through a first transmission mechanism, the outer wall of the carbon brush mounting seat body (1) is provided with a reset mechanism for steering and resetting the turntable (9), the front and back limiting and sliding connection of the outer wall of the carbon brush mounting seat body (1) is provided with concave moving blocks (11), the turntable (9) drives the concave moving blocks (11) to move through a second transmission mechanism, the concave moving blocks (11) drive the two heat dissipation cylinders (6) to move up and down alternately through a third transmission mechanism, the lower surface of the piston plate (5) is fixedly connected with a third compression spring (33), and the lower end of the third compression spring (33) is fixedly connected with the bottom in the cylinder of the piston cylinder (4);
the resetting mechanism comprises a sleeve (12), the sleeve (12) is fixedly connected to the outer wall of the carbon brush mounting seat body (1), a first compression spring (13) is fixedly connected to the bottom inside the sleeve (12), a resetting rod (14) is fixedly connected to the upper end of the first compression spring (13), a resetting arm (15) is hinged to the top of the resetting rod (14), and the top of the resetting arm (15) is hinged to the outer wall of the turntable (9);
the second transmission mechanism comprises a rotating column (26), the rotating column (26) is fixedly connected to the outer wall of the rotary table (9), one end, far away from the rotary table (9), of the rotating column (26) is fixedly connected with a second pressing part (27), and the second pressing part (27) is abutted to the concave part of the concave moving block (11);
the third transmission mechanism comprises two oblique grooves (28), the two oblique grooves (28) are formed in the concave moving block (11), sliding columns (29) are connected to the groove walls of the two oblique grooves (28) in a sliding mode, connecting arms (30) are fixedly connected to the column arms of the sliding columns (29), and the tops of the connecting arms (30) are fixedly connected with the outer walls of the two heat dissipation cylinders (6) respectively.
2. The reduced temperature rise automotive alternator of claim 1, wherein:
the first transmission mechanism comprises a first spiral groove (16), a second spiral groove (17) and two connecting columns (20), the first spiral groove (16) and the second spiral groove (17) are arranged around the shaft arm of the rotating shaft (10) in a half-circle mode, the first spiral groove (16) and the second spiral groove (17) respectively comprise a top notch (18) and a bottom notch (19), the first spiral groove (16) and the second spiral groove (17) are communicated with the bottom notch (19) through the top notch (18), the depth of the groove wall of the top notch (18) is larger than that of the bottom notch (19), the two connecting columns (20) are fixedly connected to the outer wall of the rotating disc (9), one ends, far away from the rotating disc (9), of the two connecting columns (20) are fixedly close to a first abutting part (21), and the bottom of the rotating shaft (10) is fixedly connected with an abutting plate (22), the lower surface fixedly connected with backup pad (23) of piston cylinder (4), run through about the siding of backup pad (23) and be provided with and support compression post (24), support compression post (24) with the common fixedly connected with second compression spring (25) of opposite side between carbon brush mount pad body (1), the one end of supporting compression post (24) stretch into to first helicla flute (16) with the junction of cell wall between second helicla flute (17).
3. The reduced temperature rise automotive alternator of claim 1, wherein: the carbon brush mounting seat is characterized in that a sliding groove (31) is formed in the outer wall of the carbon brush mounting seat body (1), a sliding block (32) is connected to the carbon brush mounting seat body (1) in a front-back limiting sliding mode through the sliding groove (31), and the right side of the sliding block (32) is fixedly connected with the left side of the concave-shaped moving block (11).
4. A method for reducing temperature rise of an automotive alternator using the reduced temperature rise automotive alternator according to claim 1, comprising the steps of:
s1: in the heat dissipation process, along with the temperature rise of a heat dissipation cylinder (6) with one side in contact with the hot surface of a semiconductor refrigeration piece (2), part of heat is transferred to a mercury medium (7) to cause the mercury medium (7) to expand when heated, the piston plate (5) moves downwards in the expansion process of the mercury medium (7), the rotating disc (9) rotates anticlockwise gradually in the downward moving process of the piston plate (5) through the transmission of a rotating shaft (10) and a first transmission mechanism, when a hinge point between a reset arm (15) and the rotating disc (9) crosses a longitudinal central axis of the rotating disc (9), the rotating disc (9) rotates rapidly by utilizing the upward elastic restoring force of a first compression spring (13), the concave-shaped moving block (11) also moves rapidly in the transmission process of a second transmission mechanism, and the concave-shaped moving block (11) moves and is transmitted by a third transmission mechanism, the two heat dissipation cylinders (6) slide alternately, the heat dissipation cylinder (6) in contact with the hot surface of the semiconductor refrigerating sheet (2) is replaced, and the heat dissipation cylinder (6) in contact with the hot surface of the semiconductor refrigerating sheet (2) is separated from the semiconductor refrigerating sheet (2) and is in large-area contact with air;
s2: after the heat dissipation cylinder (6) is replaced in each step S1, the mercury medium (7) starts to gradually cool and shrink, at the moment, when the temperature of the heat dissipation cylinder (6) in contact with the hot surface of the semiconductor refrigeration piece (2) on the other side rises, part of heat of the heat dissipation cylinder is transferred to the mercury medium (7) again, the mercury medium (7) is caused to be heated and expanded again, the carbon brush cooling device is enabled to operate repeatedly through the process of re-expansion of the mercury medium (7), and then the heat dissipation cylinder (6) is replaced alternately and circularly.
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| CN107612227A (en) * | 2017-09-07 | 2018-01-19 | 江苏云意电气股份有限公司 | A kind of automobile generator rectifier capacitor fixing structure |
| CN109904972B (en) * | 2019-05-05 | 2020-01-17 | 温州乾含节能科技有限公司 | Environment-friendly automobile generator regulator support |
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