CN220043131U - DC motor noise reduction device - Google Patents
DC motor noise reduction device Download PDFInfo
- Publication number
- CN220043131U CN220043131U CN202321621011.2U CN202321621011U CN220043131U CN 220043131 U CN220043131 U CN 220043131U CN 202321621011 U CN202321621011 U CN 202321621011U CN 220043131 U CN220043131 U CN 220043131U
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- Prior art keywords
- noise reduction
- shell
- sound
- direct current
- fins
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- 230000009467 reduction Effects 0.000 title claims abstract description 49
- 230000007246 mechanism Effects 0.000 claims abstract description 19
- 230000017525 heat dissipation Effects 0.000 claims abstract description 11
- 230000004224 protection Effects 0.000 claims description 22
- 230000001681 protective effect Effects 0.000 claims description 5
- 230000003584 silencer Effects 0.000 claims description 5
- 230000000694 effects Effects 0.000 abstract description 14
- 238000000034 method Methods 0.000 abstract description 4
- 230000008569 process Effects 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 230000002457 bidirectional effect Effects 0.000 abstract description 2
- 230000003139 buffering effect Effects 0.000 abstract description 2
- 238000009413 insulation Methods 0.000 description 10
- 230000008901 benefit Effects 0.000 description 6
- 241000883990 Flabellum Species 0.000 description 5
- 241001233242 Lontra Species 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000009979 protective mechanism Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- Motor Or Generator Frames (AREA)
Abstract
The utility model discloses a noise reduction device of a direct current motor, which comprises a shell and a noise reduction mechanism, wherein the noise reduction mechanism is arranged on the outer side of the shell and comprises fins, the fins are arranged on the outer wall of the shell, the noise reduction mechanism also comprises a sound-proof cover, an air hole, a bottom plate, a bracket, a spring and a damper, the sound-proof cover is arranged on the outer side of the fins, and the air hole is formed in the outer wall of the sound-proof cover; the utility model can be used for improving the multidirectional performance of noise reduction through the arrangement of the noise reduction mechanism, thereby improving the noise reduction effect, ensuring stable heat dissipation, being beneficial to protecting the motor from being damaged, utilizing the fins and the air holes to carry out auxiliary heat dissipation, enabling the sound-proof housing to play a role in wrapped noise reduction so as to reduce noise, and simultaneously utilizing the cooperation among the bottom plate, the bracket, the spring and the damper to carry out vibration resistance and noise reduction during buffering so as to reduce the noise generated by the motor in the actual working process, thereby being capable of carrying out bidirectional noise reduction so as to improve the required noise reduction effect.
Description
Technical Field
The utility model relates to the technical field of direct current motors, in particular to a noise reduction device of a direct current motor.
Background
The direct current motor is a motor for converting direct current electric energy into mechanical energy, and is widely applied to electric traction due to good speed regulation performance, and particularly, the direct current motor is used in an air conditioner and a warmer. The existing direct current motor can vibrate under the working state to generate noise, and adverse effect is caused on surrounding staff.
Aiming at the technical problems, for example, the publication number CN210806952U discloses a noise reduction structure of a direct current motor, the structure is simple and stable, the anti-vibration effect is good, and the use of noise is reduced; the anti-collision and heat dissipation effects are good, so that the service life of the direct current motor is prolonged;
the above patent also suffers from the following disadvantages: in the practical use process, the noise reduction effect can be achieved by adopting an integral wrapping mode, but the integral heat dissipation of the motor is not facilitated, so that the damage caused by accumulation of internal heat is caused, and the stable operation of the motor is not facilitated.
Disclosure of Invention
The utility model aims to provide a noise reduction device for a direct current motor, which improves the noise reduction effect under the condition of ensuring heat dissipation, and adopts shock-resistant noise reduction and wrapped sound insulation noise reduction so as to improve the noise reduction effect and solve the problems in the prior art.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the noise reduction device of the direct current motor comprises a shell and a noise reduction mechanism, wherein the noise reduction mechanism is arranged on the outer side of the shell and comprises fins which are arranged on the outer wall of the shell;
the noise reduction mechanism further comprises a sound-proof cover, air holes, a bottom plate, a support, springs and dampers, wherein the sound-proof cover is arranged on the outer sides of the fins, the air holes are formed in the outer wall of the sound-proof cover, the support is arranged at the bottom of the sound-proof cover, the springs and the dampers are respectively arranged around the bottom of the support, and the bottom plate is arranged at the bottom ends of the springs and the dampers.
Preferably, the spring is located outside the damper, and mounting holes are formed in the periphery of the top of the bottom plate.
Preferably, a baffle is arranged at one end of the shell, threaded holes are formed in the periphery of the baffle and the periphery of one end of the shell, and the baffle is bolted with the shell.
Preferably, the other end of the shell is provided with a protection mechanism, the protection mechanism comprises a protection cover and an auxiliary assembly, the protection cover is arranged at the other end of the shell, and the auxiliary assembly is arranged inside the protection cover.
Preferably, the auxiliary assembly comprises an array silencer and a screen plate, the array silencer is mounted on the inner wall of the protective cover, and the screen plate is mounted on the other end, far away from the shell, of the protective cover.
Preferably, the periphery of the other end of the shell is provided with first connecting holes, and the periphery of the shield close to the other end of the shell is provided with second connecting holes.
Preferably, the other end of the shell is provided with heat dissipation holes in a distributed mode, and the surface of the output shaft at the other end of the shell is inserted with fan blades.
Compared with the prior art, the utility model has the beneficial effects that:
1. the utility model can be used for improving the multidirectional performance of noise reduction through the arrangement of the noise reduction mechanism, thereby improving the noise reduction effect, ensuring stable heat dissipation, being beneficial to protecting the motor from being damaged, utilizing the fins and the air holes to carry out auxiliary heat dissipation, enabling the sound-proof housing to play a role in wrapped noise reduction so as to reduce noise, and simultaneously utilizing the cooperation among the bottom plate, the bracket, the spring and the damper to carry out vibration resistance and noise reduction during buffering so as to reduce the noise generated by the motor in the actual working process, thereby being capable of carrying out bidirectional noise reduction so as to improve the required noise reduction effect.
2. The utility model can be used for protecting the fan blades and simultaneously treating noise generated by the fan blades through the arrangement of the protection mechanism, thereby reducing the noise at the heat extraction position of the motor again, utilizing the protection cover to carry out sound insulation in a wrapping mode, and utilizing the sound wave interference principle to eliminate the noise when the air flow passes through the array silencer, so as to assist the noise reduction work.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic view of a spring structure according to the present utility model;
FIG. 3 is a schematic view of a fan blade according to the present utility model;
FIG. 4 is a schematic view of the structure of the array muffler of the present utility model.
In the figure: 1. a housing; 2. a noise reduction mechanism; 21. fins; 22. a soundproof cover; 23. air holes; 24. a bottom plate; 25. a bracket; 26. a spring; 27. a damper; 3. a protective mechanism; 31. a protective cover; 32. an array muffler; 33. a screen plate; 4. a fan blade; 5. and a baffle.
Detailed Description
The following description of the embodiments of the present utility model 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 utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1 to 4, the utility model provides a noise reduction device for a dc motor, which comprises a housing 1 and a noise reduction mechanism 2, wherein the noise reduction mechanism 2 is arranged at the outer side of the housing 1, the noise reduction mechanism 2 comprises fins 21, the fins 21 are arranged at the outer wall of the housing 1, and the fins 21 can be used for mounting and supporting a sound insulation cover 22 and also for playing a role of assisting in heat dissipation;
the noise reduction mechanism 2 further comprises a sound insulation cover 22, air holes 23, a bottom plate 24, a support 25, a spring 26 and a damper 27, wherein the sound insulation cover 22 is arranged on the outer side of the fins 21, the air holes 23 are formed in the outer wall of the sound insulation cover 22, the support 25 is arranged at the bottom of the sound insulation cover 22, the spring 26 and the damper 27 are respectively arranged on the periphery of the bottom of the support 25, and the bottom plate 24 is arranged at the bottom ends of the spring 26 and the damper 27;
the sound-proof housing 22 is the work of making an uproar falls in the sound insulation of parcel formula, and the gas pocket 23 of seting up does benefit to the heat and discharges to the outside, and support 25 does benefit to connecting spring 26 and attenuator 27, and spring 26 and attenuator 27 can support 25 and sound-proof housing 22 and inside casing 1 to can produce vibration force when rotatory work, cushion it from this, reduce produced the causing, and bottom plate 24 is then favorable to installing and supporting spring 26 and attenuator 27.
Wherein, the spring 26 is located outside the damper 27, and all around at bottom plate 24 top has seted up the mounting hole, and the convenience of mounting hole is in the position of required, namely confirms the position of installation casing 1 with bottom plate 24.
When the motor works, the motor is placed in a required position in advance, then the bottom plate 24 and the upper part of the motor are mounted at the required position together through bolts, and then when the motor works, noise and heat are generated, part of the heat is emitted outwards through the fins 21 by the shell 1, and then the heat is directly discharged to the outside through the air holes 23, so that auxiliary heat dissipation work is completed;
when noise is reduced, the sound insulation cover 22 is arranged to form wrapped sound insulation for the shell 1, the air holes 23 are arranged for heat outflow, so that more heat accumulation in the interior is avoided, and the generated vibration noise is treated;
the support 25 is matched with the spring 26, the damper 27 and the bottom plate 24 to process vibrating force and generated noise, rotating force is generated when the support works, then the rotating force is converted into vibrating force, the lower spring 26 and the damper 27 can eliminate the vibrating force by self elasticity and damping force after being stressed, and secondary noise reduction is completed, so that noise generated when the direct current motor works is improved.
Wherein, the one end of casing 1 is provided with baffle 5, and the screw hole has all been seted up around baffle 5 and casing 1 one end all around, baffle 5 and casing 1 bolt, and baffle 5 is used for sealing the one end of casing 1, does benefit to the dismouting simultaneously to follow-up dismantlement maintenance to its inside, and the screw hole of seting up does benefit to connecting bolt, can be with baffle 5 bolt in the one end of casing 1 through external bolt, so that carry out the dismouting work.
Further, the other end of casing 1 is provided with protection machanism 3, and protection machanism 3 includes protection casing 31 and auxiliary assembly, and protection casing 31 sets up in the other end of casing 1, and auxiliary assembly sets up in the inside of protection casing 31, and protection casing 31 still can play the effect of parcel formula of making an uproar that falls when sheltering from the protection to flabellum 4 to do benefit to and install the support to inside part.
Wherein, auxiliary assembly includes array muffler 32 and otter board 33, and array muffler 32 installs in the inner wall of protection casing 31, and otter board 33 installs in the other end that casing 1 was kept away from to protection casing 31, utilizes array muffler 32 to carry out the amortization to the air current of flabellum 4 during operation and handles, and otter board 33 still can guarantee that the air current discharges to the outside when playing the protection.
The array muffler 32 is a device for eliminating noise by using the principle of acoustic interference, and is composed of a plurality of small-sized mufflers arranged at a certain distance to form an array, and as acoustic waves pass through the array, they interfere with each other to reduce the intensity of noise, and the principle of the array muffler is based on the principle of acoustic interference, and when two acoustic waves meet, they interfere with each other to thereby achieve a sound-eliminating effect;
furthermore, the periphery of the other end of the housing 1 is provided with first connecting holes, the periphery of the other end of the shield 31, which is close to the housing 1, is provided with second connecting holes, and the first connecting holes and the second connecting holes are matched with external bolts to facilitate the mounting and fixing of the shield 31 at the other end of the housing 1, and the shield can be disassembled, maintained or replaced.
In addition, the other end of casing 1 has offered the louvre in the distributed mode, and the surface of casing 1 other end output shaft has inserted flabellum 4, and the louvre does benefit to the inside heat of casing 1 and is discharged by flabellum 4 to improve radiating efficiency, flabellum 4 plays mainstream radiating effect, in order to improve radiating effect and the efficiency of whole casing 1.
Although embodiments of the present utility model 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 utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The utility model provides a device of making an uproar falls in direct current motor which characterized in that: the noise reduction mechanism (2) is arranged on the outer side of the shell (1), the noise reduction mechanism (2) comprises fins (21), and the fins (21) are arranged on the outer wall of the shell (1);
noise reduction mechanism (2) still including sound-proof housing (22), gas pocket (23), bottom plate (24), support (25), spring (26) and attenuator (27), sound-proof housing (22) are installed in the outside of fin (21), gas pocket (23) are seted up in the outer wall of sound-proof housing (22), support (25) are installed in the bottom of sound-proof housing (22), around support (25) bottom are installed respectively in spring (26) and attenuator (27), bottom plate (24) are installed in the bottom of spring (26) and attenuator (27).
2. The noise reduction device for a direct current motor according to claim 1, wherein: the springs (26) are located on the outer side of the damper (27), and mounting holes are formed in the periphery of the top of the bottom plate (24).
3. The noise reduction device for a direct current motor according to claim 2, wherein: one end of the shell (1) is provided with a baffle (5), threaded holes are formed in the periphery of the baffle (5) and the periphery of one end of the shell (1), and the baffle (5) is bolted with the shell (1).
4. A noise reduction device for a dc motor according to claim 3, wherein: the other end of casing (1) is provided with protection machanism (3), protection machanism (3) are including protection casing (31) and auxiliary assembly, protection casing (31) set up in the other end of casing (1), auxiliary assembly sets up in the inside of protection casing (31).
5. The noise reduction device for a direct current motor according to claim 4, wherein: the auxiliary assembly comprises an array silencer (32) and a screen plate (33), wherein the array silencer (32) is arranged on the inner wall of the protective cover (31), and the screen plate (33) is arranged on the other end, far away from the shell (1), of the protective cover (31).
6. The noise reduction device for a direct current motor according to claim 5, wherein: the periphery of the other end of the shell (1) is provided with first connecting holes, and the periphery of the shield (31) close to the other end of the shell (1) is provided with second connecting holes.
7. The noise reduction device for a direct current motor according to claim 1, wherein: the heat dissipation holes are distributed at the other end of the shell (1), and the fan blades (4) are inserted into the surface of the output shaft at the other end of the shell (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321621011.2U CN220043131U (en) | 2023-06-26 | 2023-06-26 | DC motor noise reduction device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321621011.2U CN220043131U (en) | 2023-06-26 | 2023-06-26 | DC motor noise reduction device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220043131U true CN220043131U (en) | 2023-11-17 |
Family
ID=88739330
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321621011.2U Active CN220043131U (en) | 2023-06-26 | 2023-06-26 | DC motor noise reduction device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220043131U (en) |
-
2023
- 2023-06-26 CN CN202321621011.2U patent/CN220043131U/en active Active
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