A motor with built-in noise reduction structure

Abstract

This utility model discloses a motor with a built-in noise reduction structure, belonging to the field of electric toothbrush technology. It includes a main body assembly, with a drive shaft mounted on one side near the edge. A conduit is fixedly mounted on the top of the main body assembly. First connecting seats are provided on both the upper and lower sides of the main body assembly, located on the side of the conduit. Connecting components are also provided on both the upper and lower sides of the main body assembly, located on the side of the conduit furthest from the two first connecting seats. This utility model, by incorporating a noise reduction and heat dissipation device, allows users to reduce noise generated during operation using sound-absorbing cotton, thereby reducing the possibility of adverse effects on the user. Furthermore, the user can dissipate heat from the inside of the main body assembly through the cooperation of the fan blades and heat-conducting copper rod, reducing the possibility of overheating damage and thus improving the motor's working capacity.

Description

Technical Field

[0001] This utility model belongs to the field of electric toothbrush technology, specifically relating to a motor with a built-in noise reduction structure. Background Technology

[0002] An electric toothbrush is a type of toothbrush that uses the rapid rotation or vibration of a motor to create high-frequency vibrations in the brush head. This instantly breaks down toothpaste into fine foam, deeply cleaning between teeth. Simultaneously, the vibration of the bristles promotes blood circulation in the mouth and massages the gum tissue. In terms of operating principle, electric toothbrushes fall into two main categories: rotary and vibratory.

[0003] Existing motors cannot handle the noise generated during operation and are prone to overheating and damage, thus reducing their working capacity; furthermore, they cannot be dried internally when needed, thus reducing their practicality. Utility Model Content

[0004] To address the problems mentioned in the background section, this invention provides a motor with a built-in noise reduction structure, characterized by high operating capacity and strong practicality.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a motor with a built-in noise reduction structure, comprising a main body assembly, a drive shaft mounted on one side near the edge of the main body assembly, a conduit fixedly mounted on the top of the main body assembly, first connecting seats provided on the upper and lower sides of the main body assembly and on the side of the conduit, connecting components provided on the upper and lower sides of the main body assembly and on the side of the conduit away from the two first connecting seats, the main body assembly being connected to the two first connecting seats and the two connecting components through a noise reduction and heat dissipation device, and an auxiliary drying device fixedly mounted on the side of the main body assembly away from the drive shaft; The noise reduction and heat dissipation device includes a connecting shell. The main body component is connected to the two first connecting seats and the two connecting components through the connecting shell. Sound-absorbing cotton is fixedly installed in the side wall of the connecting shell. A heat dissipation component is fixedly installed on one side of the connecting shell near the edge and outside the drive shaft.

[0006] Preferably, the heat dissipation assembly includes heat-conducting copper rods, and multiple heat-conducting copper rods are fixedly installed on one side of the connecting shell near the edge and outside the drive shaft.

[0007] Preferably, a mesh cylinder is fixedly installed on one side of the connecting shell, located outside the drive shaft and multiple heat-conducting copper rods. Multiple rotating shafts are installed on the inner side of the mesh cylinder, located on one side of the multiple heat-conducting copper rods, via bearings. A driven gear is fixedly installed on the outer side of the rotating shaft, located inside the mesh cylinder. A fan blade is fixedly installed on the outer side of the rotating shaft, located between the driven gear and the heat-conducting copper rods. A drive gear is fixedly installed on the outer side of the drive shaft, located between the multiple driven gears.

[0008] Preferably, the driving gear is meshed with multiple driven gears.

[0009] Preferably, the auxiliary drying device includes a fixed cylinder, on the side of the main component away from the drive shaft, a fixed mesh is fixedly installed on the inner side of the fixed cylinder, and silica gel desiccant is filled on the inner side of the fixed cylinder and at the position on the side of the fixed mesh away from the drive shaft.

[0010] Preferably, a threaded cap is threadedly installed on the side of the fixed cylinder away from the main component.

[0011] Preferably, the inner diameter of the fixing cylinder is equal to the outer diameter of the fixing net.

[0012] Compared with the prior art, the beneficial effects of this utility model are: 1. This utility model, by setting up a noise reduction and heat dissipation device, allows users to reduce the noise generated during operation by using sound-absorbing cotton, thereby reducing the possibility of adverse effects on users. In addition, users can dissipate heat from the inside of the main components through the cooperation of structures such as fan blades and heat-conducting copper rods, thereby reducing the possibility of overheating damage and improving the working capacity of the motor.

[0013] 2. By setting up an auxiliary drying device, this utility model allows users to dry the interior of the main components when needed using silica gel desiccant and a fixing mesh, thereby reducing the possibility of moisture damage and improving the practicality of the motor. Attached Figure Description

[0014] Figure 1 This is a perspective view of the present utility model; Figure 2 This is a three-dimensional sectional view of the present invention; Figure 3 This is a three-dimensional sectional view of the noise reduction and heat dissipation device of this utility model; Figure 4 This is a three-dimensional sectional view of the auxiliary drying device of this utility model.

[0015] In the diagram: 1. Main component; 2. Drive shaft; 3. Noise reduction and heat dissipation device; 31. Connecting shell; 32. Heat dissipation component; 321. Fan blade; 322. Driven gear; 323. Rotating shaft; 324. Heat-conducting copper rod; 325. Drive gear; 326. Mesh cylinder; 33. Sound-absorbing cotton; 4. Connecting component; 5. Through pipe; 6. First connecting seat; 7. Auxiliary drying device; 71. Fixing cylinder; 72. Fixing mesh; 73. Silica gel desiccant; 74. Threaded cap. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Example 1 Please see Figure 1-4 The present invention provides the following technical solution: a motor with a built-in noise reduction structure, including a main body component 1, a drive shaft 2 installed on one side of the main body component 1 near the edge, a conduit 5 fixedly installed on the top of the main body component 1, a first connecting seat 6 provided on the upper and lower sides of the main body component 1 and on the side of the conduit 5, and a connecting component 4 provided on the upper and lower sides of the main body component 1 and on the side of the conduit 5 away from the two first connecting seats 6, the main body component 1 is connected to the two first connecting seats 6 and the two connecting components 4 through a noise reduction and heat dissipation device 3, and an auxiliary drying device 7 fixedly installed on the side of the main body component 1 away from the drive shaft 2; The noise reduction and heat dissipation device 3 includes a connecting shell 31. The main body component 1 is connected to the two first connecting seats 6 and the two connecting components 4 through the connecting shell 31. Sound-absorbing cotton 33 is fixedly installed in the side wall of the connecting shell 31. A heat dissipation component 32 is fixedly installed on one side of the connecting shell 31 near the edge and outside the drive shaft 2.

[0018] Specifically, the heat dissipation assembly 32 includes heat-conducting copper rods 324, and multiple heat-conducting copper rods 324 are fixedly installed on one side of the connecting shell 31 near the edge and outside the drive shaft 2.

[0019] By adopting the above technical solution, users can dissipate the heat inside the main component 1 through the heat-conducting copper rod 324, thereby reducing the possibility of overheating damage and better meeting the needs of the work.

[0020] Specifically, a mesh cylinder 326 is fixedly installed on one side of the connecting shell 31 and outside the drive shaft 2 and multiple heat-conducting copper rods 324. Multiple rotating shafts 323 are installed on the inner side of the mesh cylinder 326 and on one side of the multiple heat-conducting copper rods 324 via bearings. A driven gear 322 is fixedly installed on the outer side of the rotating shaft 323 and inside the mesh cylinder 326. A fan blade 321 is fixedly installed on the outer side of the rotating shaft 323 and between the driven gear 322 and the heat-conducting copper rods 324. A drive gear 325 is fixedly installed on the outer side of the drive shaft 2 and between the multiple driven gears 322.

[0021] By adopting the above technical solution, users can blow air onto each heat-conducting copper rod 324 through the cooperation of structures such as fan blades 321 and driven gears 322, thereby improving the heat dissipation efficiency and better meeting the needs of work.

[0022] Specifically, the driving gear 325 is meshed with multiple driven gears 322.

[0023] By adopting the above technical solution, the driving gear 325 can drive the driven gears 322 and other structures to rotate when it rotates, thereby ensuring the normal operation of the work and better meeting the needs of the work.

[0024] In this embodiment, when the electric toothbrush needs to use the motor, the user installs the motor inside the electric toothbrush through two connecting components 4 and two first connecting seats 6. Then, the main body component 1 drives the drive shaft 2 to rotate, thereby enabling use. During use, the sound-absorbing cotton 33 in the side wall of the connecting shell 31 in the noise reduction and heat dissipation device 3 can reduce noise to a certain extent. The heat in the main body component 1 is discharged through the heat-conducting copper rods 324 in the heat dissipation component 32. In addition, when the drive shaft 2 rotates, it drives the active gear 325 to rotate, which in turn drives the fan blades 321 to rotate and blow air through the driven gears 322 and the rotating shafts 323, thereby accelerating the heat dissipation efficiency and reducing the possibility of overheating damage. The electric toothbrush should have a groove corresponding to the mesh tube 326 to ensure normal heat dissipation. The mesh tube 326 is connected to the drive shaft 2 by a bearing, and the through-wire tube 5 serves as a through-wire.

[0025] Example 2 The difference between this embodiment and embodiment 1 is that the auxiliary drying device 7 includes a fixed cylinder 71. The fixed cylinder 71 is fixedly installed on the side of the main component 1 away from the drive shaft 2. A fixed mesh 72 is fixedly installed on the inner side of the fixed cylinder 71. Silica gel desiccant 73 is filled on the inner side of the fixed cylinder 71 and on the side of the fixed mesh 72 away from the drive shaft 2.

[0026] By adopting the above technical solution, users can dry the inside of the main component 1 when needed by using the combination of silica gel desiccant 73 and fixing net 72, thereby reducing the possibility of moisture damage.

[0027] Specifically, a threaded cap 74 is threadedly installed on the side of the fixed cylinder 71 away from the main component 1.

[0028] By adopting the above technical solution, users can unscrew the threaded cap 74 to replace the silica gel desiccant 73 when needed, thereby reducing the difficulty of replacing the silica gel desiccant 73 and alleviating the user's workload.

[0029] Specifically, the inner diameter of the fixing cylinder 71 is equal to the outer diameter of the fixing net 72.

[0030] By adopting the above technical solution, the inner side of the fixing cylinder 71 and the outer side of the fixing net 72 are prevented from sticking together, thereby preventing the silica gel desiccant 73 from entering the interior of the main component 1 and ensuring normal operation.

[0031] In this embodiment, during use, the moisture inside the main component 1 will gradually pass through the fixing mesh 72 inside the fixing cylinder 71 of the auxiliary drying device 7 and be absorbed by the silica gel desiccant 73, thereby ensuring the dryness inside the main component 1 and preventing moisture damage. The user can unscrew the threaded cap 74 to replace the silica gel desiccant 73 when needed.

[0032] The structure and principle of the main component 1 (comprising a shell, a fixed frame, a rotor, a stator, a rear cover, a first rotating bearing, a sealed bearing, a compression gasket, and a second rotating bearing), the drive shaft 2, the connecting component 4 (comprising a fixed seat, a spring, a second connecting seat, and a contact pad), the conduit 5, and the first connecting seat 6 in this utility model are already disclosed in a rotary vibrating motor for an electric toothbrush with shock absorption function, as disclosed in Chinese patent application number 201920407999.X. Its working principle is that under the control of a PLC, the stator is energized, and the magnetic rotor rotates alternately in both directions, driving the drive shaft to rotate alternately in both directions. The moving shaft drives the brush head to vibrate via a swing arm. Simultaneously, the motor experiences a reaction force from the swing arm. The first and second connecting seats are connected to the toothbrush handle via screws. Since the reaction force from the swing arm gradually decreases from the front to the rear of the motor, and the rear of the motor is fixed, when the motor vibrates due to the reaction force, the spring extends and retracts, absorbing the vibration waves and reducing the amplitude of the front end of the motor. When the drive bearing is subjected to torque, it compresses the sealed bearing and the second rotating bearing, causing the pressure pad to elastically deform, thus supporting the sealed bearing and the second rotating bearing and preventing their deformation.

[0033] The working principle and usage process of this utility model are as follows: When the electric toothbrush needs to use the motor, the user installs the motor inside the electric toothbrush through two connecting components 4 and two first connecting seats 6. Then, the main body component 1 drives the drive shaft 2 to rotate, thereby enabling use. During use, the sound-absorbing cotton 33 inside the side wall of the connecting shell 31 in the noise reduction and heat dissipation device 3 can reduce noise to a certain extent. The heat inside the main body component 1 is discharged through the heat-conducting copper rods 324 in the heat dissipation component 32. In addition, when the drive shaft 2 rotates, it drives the active gear 325 to rotate, which in turn drives the driven gears 322 and the rotating shafts 323 to rotate. Each fan blade 321 rotates to blow air, thereby accelerating heat dissipation efficiency and reducing the possibility of overheating damage. The electric toothbrush should have a groove corresponding to the mesh tube 326 to ensure normal heat dissipation. The mesh tube 326 is connected to the drive shaft 2 by a bearing, and the conduit 5 serves as a conduit. During use, the moisture in the main component 1 will gradually pass through the fixed mesh 72 in the fixed cylinder 71 of the auxiliary drying device 7 and be absorbed by the silica gel desiccant 73, thereby ensuring the dryness of the main component 1 and preventing moisture damage. The user can unscrew the threaded cap 74 to replace the silica gel desiccant 73 when needed.

[0034] 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 to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A motor with a built-in noise reduction structure, comprising a main body assembly (1), wherein a drive shaft (2) is mounted on one side of the main body assembly (1) near its edge, a conduit (5) is fixedly mounted on the top of the main body assembly (1), and first connecting seats (6) are provided on both the upper and lower sides of the main body assembly (1) at positions located on one side of the conduit (5), and connecting components (4) are provided on both the upper and lower sides of the main body assembly (1) at positions located on the side of the conduit (5) away from the two first connecting seats (6), characterized in that: The main body component (1) is connected to the two first connecting seats (6) and the two connecting components (4) through a noise reduction and heat dissipation device (3). An auxiliary drying device (7) is fixedly installed on the side of the main body component (1) away from the drive shaft (2). The noise reduction and heat dissipation device (3) includes a connecting shell (31). The main body component (1) is connected to two first connecting seats (6) and two connecting components (4) through the connecting shell (31). Sound-absorbing cotton (33) is fixedly installed in the side wall of the connecting shell (31). A heat dissipation component (32) is fixedly installed on one side of the connecting shell (31) near the edge and outside the drive shaft (2).

2. The motor with a built-in noise reduction structure according to claim 1, characterized in that: The heat dissipation assembly (32) includes heat-conducting copper rods (324), and multiple heat-conducting copper rods (324) are fixedly installed on one side of the connecting shell (31) near the edge and outside the drive shaft (2).

3. The motor with a built-in noise reduction structure according to claim 2, characterized in that: A mesh cylinder (326) is fixedly installed on one side of the connecting shell (31) and outside the drive shaft (2) and multiple heat-conducting copper rods (324). Multiple rotating shafts (323) are installed on the inner side of the mesh cylinder (326) and on one side of the multiple heat-conducting copper rods (324) via bearings. A driven gear (322) is fixedly installed on the outer side of the rotating shaft (323) and inside the mesh cylinder (326). A fan blade (321) is fixedly installed on the outer side of the rotating shaft (323) and between the driven gear (322) and the heat-conducting copper rods (324). A drive gear (325) is fixedly installed on the outer side of the drive shaft (2) and between the multiple driven gears (322).

4. The motor with a built-in noise reduction structure according to claim 3, characterized in that: The driving gear (325) is meshed with a plurality of driven gears (322).

5. The motor with a built-in noise reduction structure according to claim 1, characterized in that: The auxiliary drying device (7) includes a fixed cylinder (71). The fixed cylinder (71) is fixedly installed on the side of the main component (1) away from the drive shaft (2). A fixed mesh (72) is fixedly installed on the inner side of the fixed cylinder (71). Silica gel desiccant (73) is filled on the inner side of the fixed cylinder (71) and on the side of the fixed mesh (72) away from the drive shaft (2).

6. The motor with a built-in noise reduction structure according to claim 5, characterized in that: The fixed cylinder (71) is fitted with a threaded cap (74) on the side away from the main component (1) by means of threads.

7. A motor with a built-in noise reduction structure according to claim 5, characterized in that: The inner diameter of the fixed cylinder (71) is equal to the outer diameter of the fixed net (72).

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