Conductive structure of output shaft of motor
By improving the structure of the motor output shaft and using insulating sleeves to separate multiple conductive channels, the problem of limited number of conductive lines in the prior art is solved, and a richer power supply capacity of electronic components is achieved.
Patent Information
- Application Number
- CN202420333922.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-22
- Publication Date
- 2025-03-04
- Estimated Expiration
- 2034-02-22
AI Technical Summary
In existing electric toothbrushes, the hollow design of the motor output shaft limits the number of conductive lines, and more conductive lines cannot be set up to support more electronic components.
By improving the structure of the motor output shaft, the output shaft is separated into the inner and outer sides by an insulating sleeve, forming at least four conductive channels, and the inner and outer conductive parts are installed in the installation cavity and the installation position respectively.
The formation of at least four conductive channels is achieved, supporting more conductive line connections, and expanding the power supply capacity of electronic components in electric toothbrushes.
Smart Images
Figure CN222563608U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of motors, in particular to an output shaft conductive structure of a motor. Background Art
[0002] In an electric toothbrush, the brush head is directly plugged into the output shaft of the motor, and the output shaft drives the brush head to vibrate at a small frequency to achieve a cleaning effect. In order to make the brush head have more functions, more and more products will be equipped with various electronic components on the brush head to enable the brush head to have more functions besides brushing teeth. However, these electronic components need to be connected to a power source to work properly. Therefore, a solution of powering the electronic components in the brush head through the output shaft of the motor is thought of. In the background technology, the output shaft is generally set to be hollow so that the conductive circuit can pass through the hollow output shaft to connect to the electronic components in the brush head. However, due to the size limit of the motor output shaft and the structural strength requirement of the output shaft, the hollow size cannot be opened large enough, and only one or two conductive circuits can pass through. The above structure limits the electric toothbrush from being able to set more conductive circuits. Utility Model Content
[0003] The utility model aims to solve the above technical problems and provides a conductive structure of an output shaft of a motor. The utility model aims to improve the output shaft structure of the motor so that at least four conductive channels can be formed.
[0004] In order to achieve the above object, the technical solutions of the utility model include:
[0005] A conductive structure for an output shaft of a motor comprises a main body and an output shaft of the motor, wherein the output shaft comprises an insulating sleeve, an inner conductive member and an outer conductive member, the insulating sleeve comprises a first insulating partition and a second insulating partition, the insulating sleeve has an axis, the first insulating partition is arranged on the inner side of the insulating sleeve along the axial direction, and insulates and separates the inner side of the insulating sleeve into at least two installation cavities, at least two inner conductive members are provided, and are respectively installed in the two installation cavities, the second insulating partition is arranged on the outer side of the insulating sleeve along the axial direction, and insulates and separates the outer side of the insulating sleeve into at least two installation positions, at least two outer conductive members are provided, and are respectively installed in the two installation positions, the output shaft is arranged through the main body, and the inner conductive member and the outer conductive member also penetrate the main body.
[0006] According to the conductive structure of the output shaft of the motor of the present application, by improving the structure of the output shaft itself, a conductive channel is formed by utilizing the output shaft itself, and the output shaft is separated into inner and outer sides by an insulating sleeve. The inner side of the insulating sleeve is a columnar space, and the columnar space is insulated and separated by a first insulating partition to form two installation cavities. The two inner conductive parts are respectively installed in the two installation cavities, that is, at least two conductive channels can be formed by the inner conductive parts. If it is necessary to increase the number of conductive channels formed by the inner conductive parts, it is only necessary to separate more installation cavities by the first insulating partition, so that more inner conductive parts can be installed in the installation cavities, thereby forming more conductive channels. Similarly, through the provision of the second insulating plate, two insulated and separated installation positions can be formed on the outer surface of the insulating sleeve, and the two outer conductive parts are respectively installed in the two installation positions, that is, at least two conductive channels can be formed by the outer conductive parts. If it is necessary to increase the number of conductive channels formed by the outer conductive parts, it is only necessary to separate more installation positions by the second insulating plate, so that more outer conductive parts can be installed in the installation cavities, thereby forming more conductive channels.
[0007] Furthermore, the inner conductive member includes a mounting section, a limiting section and a tapered section arranged in sequence, the mounting section is installed in the mounting cavity, the limiting section cooperates with one end of the insulating sleeve to limit the position, so that the tapered section is arranged outside the insulating sleeve. The mounting section is convenient for passing through the rear of the motor body along with the output shaft to form a conductive channel passing through the motor, the limiting section cooperates with the insulating sleeve to limit the position, and the tapered section is convenient for externally connecting the electrode sheet.
[0008] Furthermore, the insulating sleeve is provided with an insulating limit plate, the limit section is arranged above the insulating limit plate, the outer conductive member is arranged below the insulating limit plate, the insulating limit plate extends outward, the limit section cooperates with the insulating limit plate to limit, and the limit section is insulated and separated from the outer conductive member. While the insulating limit plate cooperates with the limit section to limit, it can also prevent the limit section from contacting the outer conductive member, and the outer conductive member and the inner conductive member are separated by the upper and lower inside and outside, so that the conductive channel formed by them can be more convenient for external electrode sheets.
[0009] Furthermore, the conical section is a shape with the largest size in the middle and gradually reduced sizes at both ends, and the largest size of the conical section is still on the inner side of the outer side surface of the outer conductive member. The shape of the conical section can facilitate the use of the elasticity of the electrode spring and the outer side surface of the conical section to form a certain limiting effect after the conical section contacts the electrode spring. In addition, when the motor is applied to an electric toothbrush, the conical section can limit the brush head of the electric toothbrush to the output shaft of the motor, so that the vibration output by the motor is transmitted to the brush head with less attenuation, and at the same time, electricity can be more stably transmitted from the motor to the brush head.
[0010] Furthermore, the first insulating partition matches the shape of the limiting section and the tapered section.
[0011] Furthermore, the installation section passes through the other end of the insulating sleeve to the bottom of the outer conductive member, and the first insulating partition is also extended along the length of the installation section. The outer conductive member and the inner conductive member can form a separation arrangement of upper and lower inside and outside on both sides of the insulating sleeve, so that the conductive channel formed by them can be more convenient for external electrode sheets.
[0012] Furthermore, the output shaft is provided with a D-shaped shaft section, and the insulating sleeve and the outer conductive member cooperate to form the D-shaped shaft section. The provision of the D-shaped shaft section enables the output shaft to be used for transmission.
[0013] Furthermore, it also includes a rotor, which is installed on the output shaft, magnets are provided on both sides of the rotor, and coils are provided on the main body at positions corresponding to the magnets.
[0014] Furthermore, the outer conductive member and the second insulating partition cooperate to form a limiting groove on the output shaft, and the rotor is provided with a limiting ring sleeved in the limiting groove, and a bearing is sleeved and installed on the outer side of the limiting ring.
[0015] Furthermore, the main body further comprises a housing, and the outer side surface of the bearing abuts against the housing. The output shaft can be stably installed in the main body through the mounting structure and swing with the rotor. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a three-dimensional diagram of the motor of the present utility model.
[0017] Figure 2 It is an exploded diagram of the motor of the present utility model.
[0018] Figure 3 It is an exploded view of the output shaft of the utility model.
[0019] Figure 4 It is a cross-sectional view of the motor of the present utility model. DETAILED DESCRIPTION
[0020] The conductive structure of an output shaft of a motor of the utility model is described in conjunction with the accompanying drawings.
[0021] like Figures 1 to 4The output shaft 2 conductive structure of a motor shown in the figure includes a main body 1 and an output shaft 2 of the motor, wherein the output shaft 2 includes an insulating sleeve 21, an inner conductive member 22 and an outer conductive member 23, wherein the insulating sleeve 21 includes a first insulating partition 211 and a second insulating partition 212, wherein the insulating sleeve 21 is cylindrical as a whole, has an axis, and the inner side of the insulating sleeve 21 is also cylindrical, wherein the first insulating partition 211 is arranged on the inner side of the insulating sleeve 21 along the axis direction, and the inner side of the insulating sleeve 21 is insulated and separated into at least two mounting cavities 213, wherein the insulating sleeve 21 is provided with a plurality of insulating partitions 211, and the insulating sleeve 21 is provided with a plurality of insulating partitions 212 ... There are at least two inner conductive members 22, which are respectively installed in the two installation cavities 213. The second insulating partition plate 212 is arranged on the outside of the insulating sleeve 21 along the axial direction, and insulates the outside of the insulating sleeve 21 into at least two installation positions 215. There are at least two outer conductive members 23, which are respectively installed in the two installation positions 215. The output shaft 2 passes through the main machine 1, and the inner conductive member 22 and the outer conductive member 23 also pass through the main machine 1, thereby forming a conductive channel that can pass through the motor and conduct electricity through the output shaft 2.
[0022] If the number of conductive channels formed by the inner conductive members 22 needs to be increased, it is only necessary to separate more mounting cavities 213 through the first insulating partition 211 so that more inner conductive members 22 can be installed in the mounting cavities 213, thereby forming more conductive channels.
[0023] If the number of conductive channels formed by the outer conductive members 23 needs to be increased, it is only necessary to separate more mounting positions 215 through the second insulating plate so that more outer conductive members 23 can be installed in the mounting cavity 213, thereby forming more conductive channels.
[0024] like Figure 3 and Figure 4 As shown, in the embodiment of the present application, the first insulating partition 211 is arranged in the middle of the insulating sleeve 21, and the inner side of the insulating sleeve 21 is evenly divided into two symmetrical installation cavities 213. The inner conductive member 22 is also provided with two, which are respectively installed in the two symmetrical installation cavities 213. Figure 3 As shown, two second insulating partitions 212 are provided, thereby dividing the outer side surface of the insulating sleeve 21 into two installation positions 215 , and two outer conductive members 23 are provided, which are respectively installed in the two installation positions 215 .
[0025] like Figures 1 to 3As shown, the inner conductive member 22 includes a mounting section 221, a limiting section 222 and a tapered section 223 which are arranged in sequence. The shape of the mounting section 221 matches the shape of the mounting cavity 213. In the present embodiment, the cross section of the mounting section 221 is D-shaped. The mounting section 221 is installed in the mounting cavity 213. The limiting section 222 matches and limits one end of the insulating sleeve 21, thereby setting the tapered section 223 on the outside of the insulating sleeve 21. When it is necessary to connect a power source through the conductive channel formed by the inner conductive member 22, it can be achieved by contacting the tapered section 223.
[0026] like Figure 2 As shown, the conical section 223 of the present application is a shape with the largest size in the middle and gradually decreasing sizes at both ends. When the conical section 223 is externally connected to an electrode spring, the shape of the upper section of the conical section 223 can easily push the electrode spring away, so that the electrode spring can slide to the lower section of the conical section 223, thereby utilizing the elasticity of the electrode spring and the outer side surface of the conical section 223 to form a certain limiting effect, and the maximum size of the conical section 223 is still on the inner side of the outer side surface of the outer conductive member 23, which can avoid affecting the structure of the external power supply of the outer conductive member 23 due to the position of the conical section 223. In addition, when the present motor is applied to an electric toothbrush, the conical section 223 can limit the brush head of the electric toothbrush and lock it on the output shaft 2 of the motor, so that the vibration output by the motor is transmitted to the brush head with less attenuation, and at the same time, electricity can be transmitted from the motor to the brush head more stably.
[0027] An insulating limit plate 214 is provided on the insulating sleeve 21, the limit section 222 is arranged above the insulating limit plate 214, the outer conductive member 23 is arranged below the insulating limit plate 214, the insulating limit plate 214 extends outward, the limit section 222 cooperates with the insulating limit plate 214 to limit, and at the same time, the limit section 222 and the outer conductive member 23 are insulated and separated. While cooperating with the limit section 222 to limit, the insulating limit plate 214 can also prevent the limit section 222 from contacting the outer conductive member 23, and the outer conductive member 23 and the inner conductive member 22 are separated by the upper and lower inside and outside separation settings, so that the conductive channel formed by them can be more convenient for external electrode sheets.
[0028] The first insulating partition 211 matches the shape of the limiting section 222 and the tapered section 223 , so that the limiting section 222 and the tapered section 223 of the adjacent inner conductive member 22 can maintain insulation separation.
[0029] The installation section 221 extends from the other end of the insulating sleeve 21 to the bottom of the outer conductive member 23, and the first insulating partition 211 is also extended along the length of the installation section 221. Figure 1As shown, the outer conductive member 23 and the inner conductive member 22 can form a separation arrangement up and down and inside and outside on both sides of the insulating sleeve 21, so that the conductive channel formed by them can be more conveniently connected to the external electrode sheet.
[0030] The output shaft 2 is provided with a D-shaped shaft section 24, and the insulating sleeve 21 and the outer conductive member 23 cooperate to form the D-shaped shaft section 24. The setting of the D-shaped shaft section 24 enables the output shaft 2 to be used for transmission, so that the output shaft 2 of the present application can realize the traditional transmission function while realizing the conductive function.
[0031] like Figure 2 and Figure 4 As shown, the main machine 1 further includes a rotor 3 , which is mounted on the output shaft 2 . Magnets 31 are disposed on both sides of the rotor 3 , and the main machine 1 is provided with coils 12 at positions corresponding to the magnets 31 .
[0032] like Figure 4 As shown, the outer conductive member 23 and the second insulating partition 212 cooperate to form a limiting groove 25 on the output shaft 2, and the rotor 3 is provided with a limiting ring 32 sleeved in the limiting groove 25, and a bearing 4 is sleeved and installed on the outer side of the limiting ring 32; the main machine 1 also includes a housing 11, and the outer side surface of the bearing 4 abuts against the housing 11; through this installation structure, the output shaft 2 can be stably installed in the main machine 1 and swing with the rotor 3.
[0033] According to the disclosure and teaching of the above description, the technical personnel in the field to which the utility model belongs can also change and modify the above implementation. Therefore, the utility model is not limited to the specific implementation methods disclosed and described above, and some modifications and changes to the utility model should also fall within the scope of protection of the claims of the utility model. In addition, although some specific terms are used in this specification, these terms are only for the convenience of description and do not constitute any limitation to the utility model.
Claims
1. A conductive structure of an output shaft of a motor, characterized in that: The invention comprises a motor body and an output shaft, wherein the output shaft comprises an insulating sleeve, an inner conductive member and an outer conductive member, the insulating sleeve comprises a first insulating partition and a second insulating partition, the insulating sleeve has an axis, the first insulating partition is arranged on the inner side of the insulating sleeve along the axis direction, and insulates and separates the inner side of the insulating sleeve into at least two installation cavities, at least two inner conductive members are provided, and are respectively installed in the two installation cavities, the second insulating partition is arranged on the outer side of the insulating sleeve along the axis direction, and insulates and separates the outer side of the insulating sleeve into at least two installation positions, at least two outer conductive members are provided, and are respectively installed in the two installation positions, the output shaft is arranged through the main body, and the inner conductive member and the outer conductive member also pass through the main body.
2. The output shaft conductive structure of the motor according to claim 1, characterized in that: The inner conductive member includes an installation section, a limiting section and a tapered section which are arranged in sequence. The installation section is installed in the installation cavity. The limiting section cooperates with one end of the insulating sleeve to limit the position, so that the tapered section is arranged outside the insulating sleeve.
3. The output shaft conductive structure of the motor according to claim 2, characterized in that: An insulating limit plate is provided on the insulating sleeve, the limit section is arranged above the insulating limit plate, the outer conductive member is arranged below the insulating limit plate, the insulating limit plate extends outward, the limit section cooperates with the insulating limit plate to limit, and at the same time the limit section is insulated and separated from the outer conductive member.
4. The output shaft conductive structure of the motor according to claim 2, characterized in that: The tapered section is in a shape with the largest size in the middle and gradually reduced sizes at both ends, and the largest size of the tapered section is still located on the inner side of the outer side surface of the outer conductive member.
5. The output shaft conductive structure of the motor according to any one of claims 2 to 4, characterized in that: The first insulating partition is matched with the shape of the limiting section and the tapered section.
6. The output shaft conductive structure of the motor according to claim 2, characterized in that: The installation section passes through the other end of the insulating sleeve to the bottom of the outer conductive member, and the first insulating partition is also extended along the length of the installation section.
7. The output shaft conductive structure of the motor according to claim 1, characterized in that: The output shaft is provided with a D-shaped shaft section, and the insulating sleeve and the outer conductive member cooperate to form the D-shaped shaft section.
8. The output shaft conductive structure of the motor according to claim 1, characterized in that: The invention also comprises a rotor, which is mounted on the output shaft. Magnets are arranged on both sides of the rotor, and coils are arranged on the main body at positions corresponding to the magnets.
9. The output shaft conductive structure of the motor according to claim 8, characterized in that: The outer conductive member and the second insulating partition cooperate to form a limiting groove on the output shaft. The rotor is provided with a limiting ring sleeved in the limiting groove. A bearing is sleeved and installed on the outer side of the limiting ring.
10. The output shaft conductive structure of the motor according to claim 9, characterized in that: The main body further comprises a housing, and the outer side surface of the bearing abuts against the housing.