CN117060638A - Motor casing based on sliding seal has fireproof effect - Google Patents
Motor casing based on sliding seal has fireproof effect Download PDFInfo
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- CN117060638A CN117060638A CN202311043389.3A CN202311043389A CN117060638A CN 117060638 A CN117060638 A CN 117060638A CN 202311043389 A CN202311043389 A CN 202311043389A CN 117060638 A CN117060638 A CN 117060638A
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- shell
- wall
- grooves
- groove
- air
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- 230000000694 effects Effects 0.000 title claims abstract description 32
- 229910001285 shape-memory alloy Inorganic materials 0.000 claims description 12
- 230000005540 biological transmission Effects 0.000 claims description 9
- 238000005452 bending Methods 0.000 claims description 8
- 238000007789 sealing Methods 0.000 claims description 7
- 239000011810 insulating material Substances 0.000 claims description 3
- 230000008859 change Effects 0.000 claims description 2
- 238000000926 separation method Methods 0.000 claims 3
- 230000005389 magnetism Effects 0.000 claims 1
- 230000017525 heat dissipation Effects 0.000 abstract description 29
- 238000002485 combustion reaction Methods 0.000 abstract description 5
- 238000000034 method Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 230000009471 action Effects 0.000 description 4
- 238000007664 blowing Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000005855 radiation Effects 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Classifications
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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
- H02K5/207—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium with openings in the casing specially adapted for ambient air
-
- 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
- H02K5/10—Casings or enclosures characterised by the shape, form or construction thereof with arrangements for protection from ingress, e.g. water or fingers
-
- 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
- H02K5/18—Casings or enclosures characterised by the shape, form or construction thereof with ribs or fins for improving heat transfer
-
- 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
- H02K9/06—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium with fans or impellers driven by the machine shaft
-
- 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
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a motor shell with fireproof effect based on sliding seal, which relates to the technical field of motor shells, and comprises a shell and a motor arranged in the shell, and further comprises: the air exhaust device comprises a shell, a plurality of air exhaust grooves and a plurality of air exhaust grooves, wherein the air exhaust grooves are uniformly distributed at intervals in the outer wall of the shell; the radiating fins are arranged in the cavity of the shell, correspond to the exhaust grooves one by one and extend out of the exhaust grooves, and the cross sections of the radiating fins are also in trapezoid shapes; an air inlet hole is arranged on the outer wall of the shell. The invention increases the heat exchange area of the shell and the air, thereby achieving the purpose of improving the heat dissipation rate, and the air flows along the surfaces of the radiating fins after flowing out of the exhaust grooves, so that the heat exchange effect of the radiating fins can be further improved, the combustion phenomenon is avoided, and the fireproof effect is achieved.
Description
Technical Field
The invention relates to the technical field of motor shells, in particular to a motor shell with a fireproof effect based on sliding sealing.
Background
The motor housing is a housing for mounting the motor or the engine, and has functions of protecting the motor, reducing noise, preventing external particles or substances from entering the motor, and keeping the inside of the motor clean.
At present, the existing motor or motor generally has a radiating fin arranged outside the motor or motor, the heat exchange surface between the motor or motor and air is increased through the radiating fin, so that the radiating effect is improved, and compared with the mode which is suitable for an open air scene, if the heat emitted by the motor or motor is easily accumulated in a relatively small environment, the temperature difference between the outside air and the radiating fin is reduced, so that the radiating effect is reduced;
the motor applied to the blower can drive the fan to rotate when in operation, and has a certain heat dissipation effect on the motor under the action of air flow when in blowing, but the ambient temperature of the motor can be increased under the condition of blowing hot air, so that the motor dissipates heat only by improving the air flow rate outside the heat dissipation fins on the motor, and the heat dissipation efficiency is relatively poor; when the heat dissipation effect is poor and the motor heats up to a certain temperature, even the combustion condition can occur.
Disclosure of Invention
The present invention is directed to a motor housing with fireproof effect based on sliding seal, so as to solve at least one technical problem in the prior art.
In order to achieve the above purpose, the present invention provides the following technical solutions: motor casing based on sliding seal has fireproof effect, including casing and motor of installing in the casing still includes:
the air exhaust device comprises a shell, a plurality of air exhaust grooves and a plurality of air exhaust grooves, wherein the air exhaust grooves are uniformly distributed at intervals in the outer wall of the shell;
the radiating fins are arranged in the cavity of the shell, correspond to the exhaust grooves one by one and extend out of the exhaust grooves, and the cross sections of the radiating fins are also in trapezoid shapes;
an air inlet hole formed in the outer wall of the shell;
the control component is used for controlling the radiating fins to retract into the cavity in a preset temperature range to open the exhaust groove, and controlling the radiating fins to be ejected outwards to close the exhaust groove when the temperature exceeds a preset value, and simultaneously closing the air inlet hole.
Preferably, the inner wall of the casing is fixed with two mounting plates near the inner wall of the exhaust groove, and the radiating fins are slidably mounted between the two mounting plates and slide along the radial direction of the casing.
Preferably, the control assembly comprises a sleeve integrally formed on the inner wall of the casing, a sliding rod is slidably mounted in the sleeve, a through groove is formed in the radiating fin, the sliding rod penetrates through the two mounting plates and the through groove, through holes for the sliding rod to penetrate through are formed in the two mounting plates, a chute is formed in the inner wall of the through groove, and a pin rod inserted into and slidably mounted in the chute is fixed on the outer wall of the sliding rod;
the sliding rod also comprises a transmission part for controlling the sliding rod to axially slide along the sliding rod.
Preferably, the transmission part comprises a rotating pipe rotatably arranged on the inner ring wall at one side of the casing, the annular outer wall of the rotating pipe is provided with wave grooves, the wave grooves comprise shallow grooves and deep grooves which are mutually communicated and are alternately arranged, the bending positions of the deep grooves are farther away from the radiating fins than the bending positions of the shallow grooves, one end of the sliding rod, which is close to the wave grooves, is fixedly provided with a round rod, the round rod is inserted into the wave grooves and is in sliding connection with the wave grooves, and the round rod is positioned in the shallow grooves in an open state of the exhaust grooves;
the device also comprises a driving component for controlling the rotation of the driving rotating tube according to the temperature change.
Preferably, the driving assembly comprises a first arc groove formed in the inner ring wall of the shell, a memory alloy is fixed in the first arc groove and fixedly connected with the rotating tube, and the driving assembly further comprises a spring arranged between the radiating fin and the inner ring wall of the shell.
Preferably, the driving assembly comprises a torsion spring arranged between the casing and the rotating tube, a second arc groove is formed in the inner ring wall of the casing, a fuse is connected between the inner wall of the second arc groove and the rotating tube, and the fuse is fused when the temperature received by the fuse exceeds a preset value.
Preferably, a plurality of baffle plates are fixed on the outer wall of the rotating pipe, which is close to the air inlet, and the baffle plates are arranged corresponding to the deep grooves.
Preferably, flexible heat conducting fins are arranged between each radiating fin and the inner ring wall of the shell.
Preferably, the shell is provided with magnets which are mutually magnetically attracted close to the inner ring wall of the air inlet, and when the two magnets are mutually magnetically attracted, the motor is in an electric communication state, the magnets are correspondingly arranged at the positions of the air inlet, and when the air inlet is closed by the baffle, the baffle is also inserted between the two magnets, and the baffle is made of an insulating material.
Preferably, the length of the chute below the slide bar is greater than the length of the chute above the slide bar.
Compared with the prior art, the invention has the following beneficial effects:
1. the heat exchange area of the shell and the air is increased by arranging the cavity, so that the aim of improving the heat dissipation rate is fulfilled, and the heat conduction speed is higher because the thickness between the inner wall of the cavity and the motor is smaller, thereby being more beneficial to heat dissipation; and the air can flow along the surface of the radiating fin after flowing out of the exhaust groove, so that the heat exchange effect of the radiating fin can be further improved.
2. When the temperature of the motor exceeds a preset value, the control component controls the radiating fins to eject outwards, and the cross sections of the exhaust grooves and the radiating fins are trapezoidal, so that the radiating fins can seal the exhaust grooves during ejection, and meanwhile, the control component also can seal the air inlet holes, so that a sealed space is formed in the shell, oxygen in the external air is separated from the internal environment, further combustion is prevented, and a fireproof effect is further achieved.
Drawings
FIG. 1 is a first perspective view of the present invention;
FIG. 2 is a schematic view of a second perspective structure of the present invention;
FIG. 3 is a front view of the present invention;
FIG. 4 is a cross-sectional view taken along line A-A of FIG. 3 and a partial enlarged view of the present invention;
FIG. 5 is a cross-sectional view taken along line B-B of FIG. 4 and a partial enlarged view of the present invention;
FIG. 6 is a cut-away perspective view of the view of FIG. 5 in accordance with the present invention;
FIG. 7 is a cross-sectional view taken along line C-C of FIG. 3 in accordance with the present invention;
FIG. 8 is a partial view of a shallow trench and a deep trench of the present invention;
FIG. 9 is an enlarged perspective view of a rotary tube according to the present invention;
FIG. 10 is an enlarged perspective view of the wave groove in sliding engagement with the round bar of the present invention;
FIG. 11 is a schematic view showing the mounting structure of two magnets according to the present invention
Fig. 12 is a schematic cross-sectional structure of the driving assembly in the second embodiment.
In the figure: 1. a motor; 2. a housing; 3. a heat radiation fin; 4. an air inlet hole; 5. an exhaust groove; 6. a through groove; 7. a spring; 8. a slide bar; 9. a flexible heat conductive sheet; 10. a sleeve; 11. a chute; 12. a pin rod; 13. a mounting plate; 14. a rotary tube; 15. a baffle; 16. a wave trough; 17. shallow grooves; 18. a deep groove; 19. a round bar; 20. a first arc groove; 21. a memory alloy; 22. a second arc groove; 23. a fuse; 24. and (3) a magnet.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Embodiment one:
referring to fig. 1 to 11, the present invention provides the following technical solutions: a motor casing based on sliding seal has fire prevention effect, includes casing 2 and installs motor 1 in casing 2, still includes:
the air exhaust device comprises a cavity formed in a machine shell 2, wherein a plurality of uniformly-spaced air exhaust grooves 5 are formed in the outer wall of the machine shell 2, and the cross sections of the air exhaust grooves 5 are in a trapezoid shape;
a plurality of radiating fins 3 installed in the cavity of the casing 2, wherein the radiating fins 3 are in one-to-one correspondence with the exhaust grooves 5 and extend out of the exhaust grooves 5, and the cross section of the radiating fins 3 is also in a trapezoid shape;
an air inlet 4 arranged on the outer wall of the shell 2;
the control component is used for controlling the radiating fins 3 to retract into the cavity within a preset temperature range to open the exhaust grooves 5, and controlling the radiating fins 3 to be ejected outwards to close the exhaust grooves 5 and simultaneously closing the air inlet holes 4 when the temperature exceeds a preset value.
The motor 1 is installed in the blower through the shell 2, and the output shaft of the motor 1 is also provided with a blowing fan for blowing out, as is well known, the front side of the blower is an air outlet, and the rear side is an air inlet, so that air can flow from the rear side to the front side of the shell 2, and in a normal state, the air flow can accelerate the air flow between the radiating fins 3, thereby accelerating the radiating effect of the radiating fins 3 on the shell 2 and the motor 1;
when hot air is blown, the temperature of the environment where the motor 1 is located rises, and under long-time use, the heat emitted by the motor 1 is increased when the motor 1 is overloaded, so that the motor is prevented from causing faults and even burning due to overhigh temperature, and the heat dissipation rate is improved to quickly dissipate heat;
when air enters from the rear side of the blower, a part of the air enters from the air inlet hole 4 and is discharged from the air discharge groove 5, so that the heat exchange area of the machine shell 2 and the air can be increased, the purpose of improving the heat dissipation rate is achieved, and the heat conduction speed is higher due to the smaller thickness between the inner wall of the cavity and the motor 1, so that the heat dissipation is facilitated;
the air flows along the surface of the heat radiation fin 3 after flowing out from the air discharge groove 5, so that the heat exchange effect of the heat radiation fin 3 can be further improved.
Furthermore, when the motor 1 burns due to serious heat accumulation, the temperature of the motor 1 exceeds a preset value, the control component controls the radiating fins 3 to eject outwards, and the cross sections of the exhaust grooves 5 and the radiating fins 3 are trapezoid, so that the radiating fins 3 can seal the exhaust grooves 5 during ejection, and meanwhile, the control component also seals the air inlet holes 4, so that a sealed space is formed in the casing 2, oxygen in the external air is separated from the internal environment, further combustion is prevented, and the fireproof effect is further achieved.
The heat dissipation fins 3 and the air exhaust grooves 5 can be distributed in a circumferential array or in a partial array, and the heat dissipation fins and the air exhaust grooves can be arranged according to actual conditions.
On the basis of the above embodiment, the inner wall of the casing 2 is fixed with two mounting plates 13 near the inner wall of the exhaust duct 5, and the heat radiating fin 3 is slidably mounted between the two mounting plates 13 and slides in the radial direction of the casing 2.
Referring specifically to fig. 5, the purpose of the mounting plate 13 is to provide a means for mounting the heat dissipation fins 3, but other mounting means may be used, so that the heat dissipation fins 3 may be moved in the air exhaust slot 5 to be opened or closed.
On the basis of the embodiment, the control assembly comprises a sleeve 10 integrally formed on the inner wall of the casing 2, a sliding rod 8 is slidably mounted in the sleeve 10, a through groove 6 is formed in the radiating fin 3, the sliding rod 8 passes through two mounting plates 13 and the through groove 6, through holes for the sliding rod 8 to pass through are formed in the two mounting plates 13, a chute 11 is formed in the inner wall of the through groove 6, and a pin rod 12 which is inserted into and slidably mounted in the chute 11 is fixed on the outer wall of the sliding rod 8;
and a transmission part for controlling the sliding rod 8 to axially slide along the transmission part.
Referring to fig. 5 specifically, in a preset temperature range, that is, in an initial state, the heat dissipation fin 3 opens the air discharge slot 5 to ensure the flow of the internal air, and when the temperature exceeds a preset value, the transmission portion controls the slide rod 8 to move away from the heat dissipation fin 3, and under the sliding fit of the pin 12 and the chute 11, the heat dissipation fin 3 moves outwards until the heat dissipation fin closes the air discharge slot 5, thereby completing the closing process of the air discharge slot 5.
On the basis of the embodiment, the transmission part comprises a rotating pipe 14 rotatably arranged on the inner ring wall of one side of the casing 2, the annular outer wall of the rotating pipe 14 is provided with a wave groove 16, the wave groove 16 comprises a shallow groove 17 and a deep groove 18 which are mutually communicated and are alternately arranged, the bending position of the deep groove 18 is farther from the radiating fins 3 than the bending position of the shallow groove 17, a round rod 19 is fixed at one end of the sliding rod 8, which is close to the wave groove 16, and the round rod 19 is inserted into the wave groove 16 and is in sliding connection with the wave groove 16, and the round rod 19 is positioned in the shallow groove 17 in the open state of the exhaust groove 5;
and a driving assembly for controlling the rotation of the driving rotation tube 14 according to the temperature variation.
In the above initial state, the heat dissipation fin 3 opens the air exhaust slot 5, the round bar 19 is located in the shallow slot 17, see fig. 5, 6 and 10, when the temperature of the motor 1 exceeds the preset value, the driving component controls the rotation tube 14 to rotate, the rotation tube 14 drives the wave slot 16 on the rotation tube to rotate, and simultaneously the round bar 19 and the sliding rod 8 are driven to move under the sliding fit of the round bar 19, so that the heat dissipation fin 3 is driven to retract first and then eject outwards, and because the bending position of the deep slot 18 is farther from the heat dissipation fin 3 than the bending position of the shallow slot 17, when the round bar 19 slides into the deep slot 18, the outward ejecting distance of the heat dissipation fin 3 is increased, so that the air exhaust slot 5 is closed, and the closing effect of the air exhaust slot 5 is completed.
It should be noted that, since the heat dissipation fin 3 has a first retracting process, the air flow of the air exhaust groove 5 is increased in the process, which is beneficial to accelerating the further dissipation of the internal heat before the sealing, thereby reducing the heat accumulated in the sealed interior and reducing the probability of reburning to a certain extent.
In one preferred embodiment, a drive assembly implementation is provided, see in particular FIG. 7;
the driving assembly comprises a first arc groove 20 formed in the inner ring wall of the shell 2, a memory alloy 21 is fixed in the first arc groove 20, the memory alloy 21 is fixedly connected with the rotating tube 14, and the driving assembly further comprises a spring 7 arranged between the radiating fin 3 and the inner ring wall of the shell 2.
Through the memory characteristic of the memory alloy 21, the memory alloy 21 cannot deform in a preset temperature range, and when the temperature of the motor 1 is higher than a preset value, the temperature is transmitted to the memory alloy 21, and the rotary tube 14 is driven to rotate by a certain angle by utilizing the shape recovery of the memory alloy, so that the structure is driven to move to complete the sealing process of the exhaust groove 5;
it should be noted that, under the overload of the motor 1 or the external factors, when the heat generated in a short time is higher than a preset value and then returns to the preset value, the memory alloy 21 will firstly extend and drive the rotary tube 14 to rotate, the round rod 19 will slide along the shallow slot 17, the heat dissipation fin 3 will compress the spring 7 during retraction, and when the temperature returns to the preset value in a short time, the round rod 19 will not pass the peak at the junction of the shallow slot 17 and the deep slot 18, the memory alloy 21 will shrink and recover, so that the rotary tube 14 reversely rotates, and meanwhile, the round rod 19 will be assisted to slide back into the shallow slot 17 under the action of the elastic force of the spring 7, so as to complete the resetting process;
in summary, in the present embodiment, the temperature fluctuation can be allowed to exceed the preset value in a short time, and the sealing of the housing 2 is not triggered, but the air circulation of the air exhaust groove 5 is increased by the shrinkage of the heat dissipation fins 3, so as to quickly reduce the temperature to the preset value, and then the subsequent sealing treatment is performed when the temperature cannot be reduced in a short time, so that the whole device has a certain fault tolerance and adaptability, and the practicability in the practical use process is improved.
Embodiment two:
the second embodiment provides a second implementation of the drive assembly, see in particular figure 12,
the driving assembly comprises a torsion spring arranged between the casing 2 and the rotating tube 14, a second arc groove 22 is formed in the inner ring wall of the casing 2, a fuse 23 is connected between the inner wall of the second arc groove 22 and the rotating tube 14, and when the temperature received by the fuse 23 exceeds a preset value, the fuse is fused.
The torsion spring applies a certain torsion force to the rotating tube 14, so that the rotating tube 14 is kept in a static state under the pulling action of the fuse wire 23, namely the initial state, then when the temperature of the motor 1 is higher than a preset value, the fuse wire 23 is fused, and at the moment, the rotating tube 14 rotates a certain angle under the torsion force of the torsion spring, so that the action can be achieved.
In addition, the fuse 23 is mounted on the inner wall of the casing 2 to transfer heat at the first time, so that the effect of rapid fusing reaction can be achieved.
In one preferred embodiment, a plurality of baffle plates 15 are fixed on the outer wall of the rotary tube 14 close to the air inlet hole 4, and the baffle plates 15 are arranged corresponding to the deep grooves 18.
Referring to fig. 4 and 10 specifically, in the initial state, the round bar 19 is located in the shallow slot 17, at this time, the baffle 15 is staggered with the air inlet 4 to ensure opening of the air inlet 4, then when the round bar 19 slides to the deep slot 18, the air exhaust slot 5 is closed by the heat dissipation fin 3, and at the same time, the baffle 15 also rotates to the air inlet 4 to close the air inlet 4, so that the enclosure 2 achieves the purpose of sealing and closing.
In one of the preferred embodiments, a flexible heat conducting fin 9 is mounted between each heat radiating fin 3 and the inner ring wall of the cabinet 2.
Referring to fig. 4, the heat transfer to the heat dissipation fins 3 can be accelerated by arranging the flexible heat conduction fins 9, meanwhile, the heat conduction of the heat dissipation fins 3 is not affected by the movement of the heat dissipation fins 3, and the heat led out by the flexible heat conduction fins 9 can be further carried out by the air flowing in the cavity.
In one preferred embodiment, the casing 2 is provided with magnets 24 magnetically attracted to each other near the inner wall of the air inlet 4, and when the two magnets 24 magnetically attracted to each other, the motor 1 is in an electrical communication state, the magnets 24 are correspondingly arranged with the air inlet 4, and when the air inlet 4 is closed by the baffle 15, the baffle 15 is also inserted between the two magnets 24, and the baffle 15 is made of an insulating material.
In order to further play a fire-proof effect, the casing 2 is closed and the power supply is cut off in the casing, referring to fig. 11 specifically, in the initial state, the two magnets 24 are attracted to each other and the motor 1 is in the energized state, when the baffle 15 rotates along with the rotation tube 14 to close the air inlet 4, the baffle 15 is inserted between the two magnets 24 to separate the two magnets, so that the motor 1 is powered off, the re-combustion caused by the continued energization of the motor is avoided, and the fire-proof effect is further improved.
In one of the preferred embodiments, the chute 11 is located below the slide bar 8 by a length greater than the length above the slide bar 8.
The standard components used in the present embodiment may be purchased directly from the market, and the nonstandard structural components according to the descriptions of the specification and the drawings may also be obtained directly by unambiguous processing according to the common general knowledge in the prior art, and meanwhile, the connection manner of each component adopts the conventional means mature in the prior art, and the machinery, the components and the equipment all adopt the conventional types in the prior art, so that the specific description will not be made here.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. Motor casing based on sliding seal has fireproof effect, including casing (2) and motor (1) of installing in casing (2), its characterized in that still includes:
the air exhaust device comprises a shell (2), wherein a cavity is formed in the shell (2), a plurality of uniformly-spaced air exhaust grooves (5) are formed in the outer wall of the shell (2), and the cross section of each air exhaust groove (5) is in a trapezoid shape;
the radiating fins (3) are arranged in the cavity of the shell (2), the radiating fins (3) are in one-to-one correspondence with the exhaust grooves (5) and extend out of the exhaust grooves (5), and the cross section of each radiating fin (3) is also in a trapezoid shape;
an air inlet hole (4) arranged on the outer wall of the shell (2);
the control component is used for controlling the radiating fins (3) to retract into the cavity in a preset temperature range, opening the exhaust groove (5), controlling the radiating fins (3) to be ejected outwards to seal the exhaust groove (5) when the temperature exceeds a preset value, and simultaneously sealing the air inlet hole (4).
2. The sliding seal type motor housing with fireproof effect according to claim 1, wherein: the inner wall of the shell (2) is close to the inner wall of the exhaust groove (5) and is fixedly provided with two mounting plates (13), and the radiating fins (3) are slidably arranged between the two mounting plates (13) and slide along the radial direction of the shell (2).
3. The sliding seal type motor housing with fireproof effect according to claim 2, wherein: the control assembly comprises a sleeve (10) integrally formed on the inner wall of the shell (2), a sliding rod (8) is slidably mounted in the sleeve (10), a through groove (6) is formed in the radiating fin (3), the sliding rod (8) penetrates through two mounting plates (13) and the through groove (6), through holes through which the sliding rod (8) can penetrate are formed in the two mounting plates (13), a chute (11) is formed in the inner wall of the through groove (6), and a pin rod (12) which is inserted into and slidably mounted in the chute (11) is fixed on the outer wall of the sliding rod (8);
the device also comprises a transmission part for controlling the sliding rod (8) to axially slide along the transmission part.
4. The sliding seal type motor housing having a fireproof effect according to claim 3, wherein: the transmission part comprises a rotating pipe (14) which is rotatably arranged on the inner ring wall at one side of the shell (2), the annular outer wall of the rotating pipe (14) is provided with wave grooves (16), the wave grooves (16) comprise shallow grooves (17) and deep grooves (18) which are mutually communicated and are alternately arranged, the bending positions of the deep grooves (18) are farther from the radiating fins (3) than the bending positions of the shallow grooves (17), one end, close to the wave grooves (16), of the sliding rod (8) is fixedly provided with a round rod (19), the round rod (19) is inserted into the wave grooves (16) and is in sliding connection with the wave grooves (16), and in an opening state, the round rod (19) is positioned in the shallow grooves (17);
and a driving component for controlling the rotation of the driving rotation tube (14) according to the temperature change.
5. The sliding seal type motor housing with fireproof effect according to claim 4, wherein: the driving assembly comprises a first arc groove (20) formed in the inner ring wall of the shell (2), a memory alloy (21) is fixed in the first arc groove (20), the memory alloy (21) is fixedly connected with the rotating tube (14), and the driving assembly further comprises a spring (7) arranged between the radiating fin (3) and the inner ring wall of the shell (2).
6. The sliding seal type motor housing with fireproof effect according to claim 4, wherein: the driving assembly comprises a torsion spring arranged between the casing (2) and the rotating tube (14), a second arc groove (22) is formed in the inner ring wall of the casing (2), a fuse (23) is connected between the inner wall of the second arc groove (22) and the rotating tube (14), and the fuse (23) is fused when the temperature received by the fuse (23) is higher than a preset value.
7. The sliding seal type motor housing with fireproof effect according to claim 4, wherein: a plurality of baffle plates (15) are fixed on the outer wall of the rotating pipe (14) close to the air inlet hole (4), and the baffle plates (15) are arranged corresponding to the deep grooves (18).
8. The sliding seal type motor casing with fire protection effect according to any one of claims 1 to 7, wherein: and flexible heat conducting fins (9) are arranged between each radiating fin (3) and the inner ring wall of the shell (2).
9. The sliding seal type motor housing with fireproof effect according to claim 7, wherein: the casing (2) is close to the magnet (24) that the inner circle wall of inlet port (4) installed magnetism each other, and two when magnet (24) are mutually magnetic, motor (1) are in the state of electric intercommunication, magnet (24) are installed with the position correspondence of inlet port (4), when separation blade (15) is closed inlet port (4), separation blade (15) also inserts between two magnet (24), just separation blade (15) adopt insulating material preparation.
10. The sliding seal type motor housing having a fireproof effect according to claim 3, wherein: the length of the chute (11) below the sliding rod (8) is larger than the length of the chute above the sliding rod (8).
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| CN208190452U (en) * | 2018-05-15 | 2018-12-04 | 常州兰陵自动化设备有限公司 | Electric device for valve heat radiating type DC motor structure |
| CN208285107U (en) * | 2018-11-09 | 2018-12-25 | 苏州利美特精密机械有限公司 | A kind of motor shell |
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| CN117060638B (en) | 2024-02-06 |
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