A noise reduction device for a direct current reduction motor

Abstract

The utility model relates to direct current speed reduction motor technical field, specifically disclose a kind of noise reduction device for direct current speed reduction motor, including motor cover, the one end of motor cover evenly fixed installation has several support strips, the other end of support strip is fixedly installed with fixed ring, the lateral wall of fixed ring is evenly fixed installation with several ear plates, the utility model will motor cover sleeve connection in the one side of direct current speed reduction motor with heat dissipation fan, and through ear plate fixed on the outer wall of direct current speed reduction motor, soundproofing cotton one covers heat dissipation fan, the noise generated when working is absorbed to heat dissipation fan, simultaneously, direct current speed reduction motor when working, vibration force is transmitted to support seat, support seat transmits vibration force to buffer component, spring and damper are compressed or stretched, while rotating block one rotates in rotating block two, offset the vibration force generated by direct current speed reduction motor, reduce the decibel of noise generated, and can let motor stable operation simultaneously.

Description

Technical Field

[0001] This utility model relates to the field of DC geared motor technology, specifically to a noise reduction device for DC geared motors. Background Technology

[0002] A DC motor is an electric motor that converts DC electrical energy into mechanical energy. Due to its excellent speed regulation performance, it is widely used in electric drives, especially in air conditioners and heaters.

[0003] Chinese patent CN210806952U discloses a noise reduction structure for a DC motor, including a DC motor and a protective shell. The protective shell has a motor placement cavity, within which the DC motor is placed. The inner wall of the protective shell has multiple limiting grooves, and a limiting post is inserted into each of these grooves. A cover plate is connected to the top of the limiting post, and the cover plate has multiple water injection holes. A water storage chamber is located within the limiting post, and the water injection holes and the water storage chamber are interconnected. A heat-conducting wire is inserted into the water storage chamber, and multiple permeable micropores are located at the upper end of the water storage chamber. A weight is placed within the water storage chamber, and the heat-conducting wire has multiple extensions that extend through the permeable micropores into the motor placement cavity. A clamping plate is fixed to the side of the DC motor, clamping the motor and contacting the limiting post. This invention has a simple and stable structure, good shock resistance, and reduces noise during use. It also has good anti-collision and heat dissipation effects, extending the service life of the DC motor.

[0004] However, while the aforementioned patent can achieve noise reduction by using a single overall encapsulation method in actual use, it is not conducive to the overall heat dissipation of the motor, leading to internal heat accumulation and damage, which is detrimental to its stable operation. Utility Model Content

[0005] The purpose of this invention is to provide a noise reduction device for a DC geared motor to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a noise reduction device for a DC geared motor, comprising a motor cover, wherein a plurality of support bars are uniformly fixedly installed at one end of the motor cover, a fixing ring is fixedly installed at the other end of the support bars, a plurality of ear plates are uniformly fixedly installed on the side wall of the fixing ring, and a sound insulation cotton is sleeved on the outer end of the support bars; Support blocks are fixedly installed at the lower ends of the motor cover and the fixing ring. Support seats are fixedly installed at the lower ends of the support blocks. Fixing seats are provided at the outer ends of the support seats. Several buffer components are evenly installed between the support seats and the fixing seats.

[0007] Preferably, one end of the motor cover has a plurality of round holes evenly provided, and one end of the motor cover is fixedly installed with sound insulation cotton II, and the side walls of sound insulation cotton II and sound insulation cotton I are evenly provided with a plurality of ventilation holes.

[0008] Preferably, both the support base and the fixing base are U-shaped, with the support base located inside the fixing base.

[0009] Preferably, the buffer component includes a damper, with circular plates fixedly installed at both ends of the damper, and a spring sleeved on the outer end of the damper, with both ends of the spring fixedly installed on the outer wall of the circular plate.

[0010] Preferably, a rotating block one is fixedly installed at the outer end of the circular plate, and a rotating block two is rotatably connected to the rotating block one via a rotating shaft and a damping bearing.

[0011] Preferably, the rotating block 2 is fixedly installed on the outer wall of the support base or the inner wall of the fixed base.

[0012] Compared with the prior art, the beneficial effects of this utility model are: This invention involves attaching a motor cover to the side of a DC geared motor equipped with a cooling fan, and fixing it to the outer wall of the DC geared motor via ear plates. Sound insulation cotton covers the cooling fan, absorbing the noise generated when the cooling fan is working. Simultaneously, when the DC geared motor is working, the vibration force is transmitted to the support base, which in turn transmits the vibration force to the buffer components, springs, and dampers for compression or stretching. At the same time, rotating block one rotates within rotating block two, counteracting the vibration force generated by the DC geared motor, reducing the decibel level of noise, and allowing the motor to operate stably. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the back of the structure of this utility model; Figure 2 This is a front view of the structure of this utility model; Figure 3 This is a schematic diagram showing the sound insulation cotton 1 and sound insulation cotton 2 of this utility model. Figure 4 This is a schematic diagram of the buffer component structure of this utility model.

[0014] In the diagram: 1. Motor cover; 2. Through hole; 3. Support bar; 4. Fixing ring; 5. Ear plate; 6. Sound insulation cotton one; 7. Sound insulation cotton two; 8. Support block; 9. Support seat; 10. Fixing seat; 11. Damper; 12. Circular plate; 13. Spring; 14. Rotating block one; 15. Rotating block two; 101. Buffer component. Detailed Implementation

[0015] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely to represent selected embodiments of this utility model.

[0016] Please see Figures 1-4 This utility model provides a technical solution: a noise reduction device for a DC geared motor, including a motor cover 1. Several support bars 3 are uniformly fixedly installed on one end of the motor cover 1, and a fixing ring 4 is fixedly installed on the other end of the support bars 3. Several ear plates 5 are uniformly fixedly installed on the side wall of the fixing ring 4. Sound insulation cotton 6 is sleeved on the outer end of the support bars 3. During installation, the motor cover 1 is sleeved on the side of the DC geared motor with the cooling fan and fixed to the outer wall of the DC geared motor by the ear plates 5. The sound insulation cotton 6 covers the cooling fan and absorbs the noise generated when the cooling fan is working.

[0017] A number of round holes 2 are evenly opened at one end of the motor cover 1. Sound insulation cotton 7 is fixedly installed at one end of the motor cover 1. A number of ventilation holes are evenly opened on the side walls of sound insulation cotton 7 and sound insulation cotton 6. The round holes 2 and ventilation holes facilitate the heat dissipation of the DC geared motor. At the same time, the cooling fan can blow the outside air to the DC geared motor without affecting the heat dissipation of the DC geared motor.

[0018] Support blocks 8 are fixedly installed at the lower ends of both the motor cover 1 and the fixing ring 4. Support seats 9 are fixedly installed at the lower ends of the support blocks 8. Fixing seats 10 are provided at the outer ends of the support seats 9. Both the support seats 9 and the fixing seats 10 are U-shaped. The support seats 9 are located inside the fixing seats 10. Several buffer components 101 are evenly installed between the support seats 9 and the fixing seats 10. The buffer components 101 are used to buffer the vibration generated when the DC geared motor is working and reduce noise.

[0019] Specifically, the motor cover 1 is fitted onto the side of the DC geared motor with the cooling fan and fixed to the outer wall of the DC geared motor by the ear plate 5. The sound insulation cotton 6 covers the cooling fan to absorb the noise generated when the cooling fan is working. At the same time, when the DC geared motor is working, it transmits the vibration force to the support base 9, and the support base 9 transmits the vibration force to the buffer component 101 to counteract the vibration force generated by the DC geared motor and reduce the decibel of the noise.

[0020] The buffer component includes a damper 11, with circular plates 12 fixedly installed at both ends of the damper 11. A spring 13 is sleeved on the outer end of the damper 11, and both ends of the spring 13 are fixedly installed on the outer wall of the circular plate 12. A rotating block 14 is fixedly installed on the outer end of the circular plate 12. A rotating block 15 is rotatably connected to the rotating block 14 via a rotating shaft and a damping bearing. The inner wall of the damping bearing is fixedly sleeved on the outer wall of the rotating shaft. The rotating shaft passes through the rotating block 14 and the rotating block 15 in sequence, so that the outer wall of the damping bearing is fixedly connected to the inner wall of the rotating block 14, and the outer wall of the rotating shaft is fixedly connected to the inner wall of the rotating block 15, allowing the rotating block 14 to rotate within the rotating block 15. The rotating block 15 is fixedly installed on the outer wall of the support base 9 or the inner wall of the fixed base 10.

[0021] Specifically, by attaching the motor cover 1 to the side of the DC geared motor with the cooling fan, the DC geared motor transmits the vibration force to the support base 9 when it is working. The support base 9 then transmits the vibration force to the buffer component 101, the spring 13 and the damper 11 for compression or stretching. At the same time, the rotating block 14 rotates within the rotating block 2 15 to counteract the vibration force generated by the DC geared motor and reduce the decibel level of the noise.

[0022] In actual use, the motor cover 1 is fitted onto the side of the DC geared motor with the cooling fan and fixed to the outer wall of the DC geared motor by the ear plate 5. The sound insulation cotton 6 covers the cooling fan to absorb the noise generated when the cooling fan is working. At the same time, when the DC geared motor is working, the vibration force is transmitted to the support base 9. The support base 9 transmits the vibration force to the buffer component 101, the spring 13 and the damper 11 for compression or stretching. Meanwhile, the rotating block 14 rotates inside the rotating block 2 15 to counteract the vibration force generated by the DC geared motor and reduce the decibel of the noise.

[0023] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

[0024] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

Claims

1. A noise reduction device for a DC geared motor, comprising a motor cover (1), characterized in that: A number of support bars (3) are evenly fixedly installed at one end of the motor cover (1), and a fixing ring (4) is fixedly installed at the other end of the support bar (3). A number of ear plates (5) are evenly fixedly installed on the side wall of the fixing ring (4), and a sound insulation cotton (6) is sleeved on the outer end of the support bar (3). Support blocks (8) are fixedly installed at the lower ends of the motor cover (1) and the fixing ring (4). Support seats (9) are fixedly installed at the lower ends of the support blocks (8). Fixing seats (10) are provided at the outer ends of the support seats (9). Several buffer components (101) are evenly installed between the support seats (9) and the fixing seats (10).

2. The noise reduction device for a DC geared motor according to claim 1, characterized in that: The motor cover (1) has several round holes (2) evenly opened at one end, and a sound insulation cotton 2 (7) is fixedly installed at one end of the motor cover (1). Several ventilation holes are evenly opened on the side walls of the sound insulation cotton 2 (7) and the sound insulation cotton 1 (6).

3. The noise reduction device for a DC geared motor according to claim 1, characterized in that: Both the support base (9) and the fixed base (10) are U-shaped, with the support base (9) located inside the fixed base (10).

4. The noise reduction device for a DC geared motor according to claim 1, characterized in that: The buffer component includes a damper (11), with a circular plate (12) fixedly installed at both ends of the damper (11). A spring (13) is sleeved on the outer end of the damper (11), and the left and right ends of the spring (13) are fixedly installed on the outer wall of the circular plate (12).

5. A noise reduction device for a DC geared motor according to claim 4, characterized in that: Rotating block one (14) is fixedly installed at the outer end of the circular plate (12), and rotating block one (14) is rotatably connected to rotating block two (15) through a rotating shaft and a damping bearing.

6. A noise reduction device for a DC geared motor according to claim 5, characterized in that: The rotating block 2 (15) is fixedly installed on the outer wall of the support base (9) or the inner wall of the fixed base (10).

Images