Deformation detection structure and electric toothbrush with same
By fixing the sensor component on the fixed bracket, and the setting settings with the motor drive rod, the problem of largely swinging motors in the existing technologies and short life of the sensor can be solved. Effective detection and sensor life.
Patent Information
- Application Number
- CN202421207799.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-30
- Publication Date
- 2025-01-24
- Estimated Expiration
- 2034-05-30
AI Technical Summary
The existing deformation detection scheme cannot be effectively applied to large swing motors, resulting in a shortening of the sensor service life.
A variant detection structure is designed, where the sensor component is fixed on the fixed bracket and replaced with the motor driver rod instead of directly installed on the motor driver rod.
This design can accurately detect pressure on a large swing angle rotating motor, reduce the possibility of the sensor component being affected by vibration, thereby extending the service life of the sensor, and has strong versatility.
Smart Images
Figure CN222393545U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of deformation detection technology, and in particular to a deformation detection structure and an electric toothbrush with the deformation detection structure. Background Art
[0002] As an important sensor, pressure sensors have been widely used in various fields for a long time. Pressure sensors use pressure sensing technology to apply external force to the structural parts in the sensing area, causing the structural parts to deform, and then the pressure sensors installed on the surface of the structural parts detect the deformation changes, and convert the detected deformation changes into electrical signals to achieve pressure sensing.
[0003] However, the mainstream deformation detection solutions on the market have obvious limitations. These solutions usually install the sensor module directly on the motor rod to detect the deformation changes of the motor. The above solutions can only be applied to reciprocating rotary motors with small swing amplitudes. Once applied to motors with large swing amplitudes, the service life of the sensor will be significantly shortened. Therefore, the existing deformation detection solutions have certain defects and need to be improved. Utility Model Content
[0004] The embodiment of the present application provides a deformation detection structure and an electric toothbrush with the deformation detection structure, which can detect the pressure on a large swing angle rotation motor and ensure the service life of the sensor component. In the first aspect, the embodiment of the present application provides a deformation detection structure, which includes:
[0005] Fixed bracket;
[0006] a motor, the motor comprising a body and a driving rod connected to the body, the body being disposed on the fixing bracket; and
[0007] A sensor assembly is connected to the fixing bracket, and a portion of the sensor assembly abuts against the driving rod to measure the deformation of the driving rod.
[0008] In some of the embodiments, the sensor assembly includes a sensor body, two ends of the sensor body are respectively supported on two sides of the fixing bracket to form a simply supported beam structure, and the sensor body is in contact with the driving rod.
[0009] In some embodiments, the sensor assembly includes a sensor body, one end of the sensor body is connected to the fixed bracket, and the other end of the sensor body is abutted against the driving rod to form a cantilever beam structure.
[0010] In some embodiments, the sensor assembly includes a sensor body and a transmission member, the transmission member is connected to the fixed bracket and at least partially abuts against the driving rod, and the sensor body is disposed in abutment with the transmission member.
[0011] In some embodiments, the transfer member is disposed in abutment with an outer wall of the driving rod, two ends of the sensor body are respectively supported on two sides of the fixed bracket to form a simply supported beam structure, and the sensor body is disposed in abutment with an outer wall of the transfer member.
[0012] In some embodiments, the transfer member is disposed in abutment with an outer wall of the driving rod, one end of the sensor body is connected to the fixed bracket, and the other end is disposed in abutment with an outer wall of the transfer member to form a cantilever beam structure.
[0013] In some embodiments, the transmission component includes a sleeve component and a support frame, the support frame is arranged on the fixed bracket, the sleeve component is sleeved on the outer periphery of the driving rod, the two ends of the support frame are respectively supported on both sides of the fixed bracket to form a simply supported beam structure, the support frame is arranged in contact with the outer wall of the sleeve component, and the sensor body is connected to the support frame.
[0014] In some embodiments, the transmission component includes a sleeve component and a support frame, the support frame is arranged on the fixed bracket, the sleeve component is sleeved on the outer periphery of the driving rod, one end of the support frame is connected to the fixed bracket, and the other end abuts against the outer wall of the sleeve component to form a cantilever beam structure, and the sensor body is connected to the support frame.
[0015] In some embodiments, the support frame and the fixing frame are an integral structure.
[0016] In a second aspect, an embodiment of the present application provides an electric toothbrush, which includes the deformation detection structure as described above.
[0017] In the deformation detection structure of the present application and the technical solution of the electric toothbrush with the deformation detection structure, the sensor assembly is fixedly connected to the fixed bracket and then abutted against the driving rod of the motor, rather than being directly installed on the driving rod of the motor. In this way, it can be ensured that the sensor assembly can accurately measure the deformation of the driving rod, and the sensor assembly is fixed in a stable position. Even when applied to motors and servo rotary motors with large swing amplitudes, the vibration effect of the driving rod of the motor on the sensor assembly can be effectively reduced, thereby ensuring the service life of the sensor assembly. In this way, the deformation detection structure of the present application is not limited to the rotation angle of the motor, so it has extremely strong versatility. In addition, the design of the deformation detection structure is concise and clear, and the installation and maintenance process is relatively simple. Users can easily install it on the existing motor system and perform maintenance and replacement when necessary, reducing operating costs and time costs. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.
[0019] Figure 1 This is a structural schematic diagram of an embodiment of a deformation detection structure of the present application;
[0020] Figure 2 A schematic diagram of the structure of a fixed bracket of the deformation detection structure of the present application;
[0021] Figure 3 This is a structural schematic diagram of another embodiment of the deformation detection structure of the present application;
[0022] Figure 4 This is a structural schematic diagram of yet another embodiment of the deformation detection structure of the present application;
[0023] Figure 5 Schematic diagrams of some structural forms of the deformation detection structure of this application;
[0024] Figure 6 Schematic diagram of other structural forms of the deformation detection structure of the present application.
[0025] Description of Figure Numbers:
[0026] 100, deformation detection structure; 10, fixed bracket; 11, mounting groove; 20, motor; 21, body; 22, driving rod; 30, sensor assembly; 31, sensor body; 32, transmission component; 321, sleeve component; 322, support frame.
[0027] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION
[0028] In order to make the objectives, technical solutions and advantages of the present application clearer, the following part will further describe the embodiments of the present application in detail in conjunction with the accompanying drawings.
[0029] When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Instead, they are only examples of devices and methods consistent with some aspects of the present application as detailed in the attached claims.
[0030] In the description of the present application, it should be understood that the terms "first", "second", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances. In addition, in the description of the present application, unless otherwise specified, "multiple" refers to two or more. "And / or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the objects associated before and after are in an "or" relationship.
[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used in this specification are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.
[0032] As an important sensor, pressure sensors have been widely used in various fields for a long time. Pressure sensors use pressure sensing technology to apply external force to the structural parts in the sensing area, causing the structural parts to deform, and then the pressure sensors installed on the surface of the structural parts detect the deformation changes, and convert the detected deformation changes into electrical signals to achieve pressure sensing.
[0033] However, the mainstream deformation detection solutions on the market currently have obvious limitations. These solutions usually install the sensor module directly on the motor rod to detect the deformation changes of the motor. The above solutions can only be applied to reciprocating rotary motors with small swing amplitudes. Once applied to large swing amplitude motors, their service life will be significantly shortened. Therefore, the existing deformation detection solutions have certain defects and need to be improved.
[0034] Therefore, the embodiment of the present application provides a deformation detection structure 100 and an electric toothbrush with the deformation detection structure. By improving the deformation detection structure 100, the pressure on the large-angle rotation motor 20 can be detected, while ensuring the service life of the sensor component 30.
[0035] Reference Figure 1 and Figure 2 In order to solve the above problems, the first aspect of the present application proposes a deformation detection structure 100. In an embodiment of the present application, the deformation detection structure 100 includes a fixed bracket 10, a motor 20 and a sensor assembly 30.
[0036] The motor 20 includes a body 21 and a driving rod 22 connected to the body 21, and the body 21 is disposed on the fixing bracket 10. The sensor assembly 30 is connected to the fixing bracket 10, and a portion of the sensor assembly 30 abuts against the driving rod 22 to measure the deformation of the driving rod 22.
[0037] The fixing bracket 10 is used to carry and protect the motor 20. The fixing bracket 10 can be made of non-metallic materials such as plastic materials, so that the fixing bracket 10 can meet various tests such as falling, twisting and sitting pressure without being damaged, and at the same time avoid the weight of the fixing bracket 10 being too large, so that the user can hold it for use. It should be noted that the material of the fixing bracket 10 is not limited to a certain type. The materials of the fixing bracket 10 commonly used in the field can be applied to the embodiments of the utility model, and they are not listed one by one here.
[0038] The motor 20 may be a small swing angle reciprocating rotary motor 20, a large swing angle reciprocating rotary motor 20 or a servo rotary motor 20, etc. Further, a surface of the fixing bracket 10 is concavely provided with a mounting groove 11, and the body 21 of the motor 20 may be embedded and fixed in the mounting groove 11, so as to improve the installation stability of the body 21 of the motor 20. The sensor assembly 30 may obtain the deformation force of the driving rod 22 of the motor 20 so that the sensor assembly 30 itself is deformed, and the deformation sensed is converted into an electrical signal output to obtain the deformation of the driving rod 22.
[0039] In the technical solution of the deformation detection structure 100 and the electric toothbrush of the present application, the sensor assembly 30 is fixedly connected to the fixed bracket 10, and then abutted against the drive rod 22 of the motor 20, rather than being directly installed on the drive rod 22 of the motor 20. In this way, it can be ensured that the sensor assembly 30 can accurately measure the deformation of the drive rod 22, and the sensor assembly 30 is fixed in a stable position. Even when applied to a motor 20 and a servo rotary motor 20 with a large swing amplitude, the vibration effect of the drive rod 22 of the motor 20 on the sensor assembly 30 can be effectively reduced, thereby ensuring the service life of the sensor assembly 30. In this way, the deformation detection structure 100 of the present application is not limited to the rotation angle of the motor 20, so it has extremely strong versatility. In addition, the design of the deformation detection structure 100 is concise and clear, and the installation and maintenance process is relatively simple. The user can easily install it on the existing motor 20 system, and maintain and replace it when necessary, reducing the operating cost and time cost.
[0040] In one embodiment of the present application, the sensor assembly 30 includes a sensor body 3121, one end of the sensor body 3121 is connected to the fixed bracket 10, and the other end is abutted against the driving rod 22 to form a cantilever beam structure. The cantilever beam structure has a simple design and installation method, which can reduce manufacturing costs and installation difficulties, and improve production efficiency. At the same time, the cantilever beam structure can also make the sensor body 3121 more susceptible to vibration, thereby improving the sensitivity and response speed of the sensor body 3121, and is suitable for a series of application scenarios that require rapid response. In addition, the design of the cantilever beam structure also makes the deformation detection structure 100 more compact, saves installation space, and is suitable for application scenarios with limited space. Therefore, the sensor assembly 30 using the cantilever beam structure can not only improve measurement accuracy and stability, but also reduce costs, improve sensitivity, accelerate response speed, and reduce energy consumption, providing users with more reliable and efficient monitoring and detection solutions. The specific deformation measurement process is as follows: when the external force is transmitted to the driving rod 22, the driving rod 22 is deformed, and the deformation is directly transmitted to the sensor body 3121. The sensor body 3121 is deformed and the sensed deformation is converted into an electrical signal output to measure the deformation of the driving rod 22.
[0041] In another embodiment of the present application, the sensor assembly 30 includes a sensor body 3121, the two ends of which are respectively supported on both sides of the fixed bracket 10 to form a simply supported beam structure, and the sensor body 3121 is in contact with the driving rod 22. The sensor body 3121 can be fixed to the fixed bracket 10 by screw fixing, gluing, snap-on limiting, etc. The sensor body 3121 can be a printed resistor ink sensor, which is printed with resistor ink to form a flexible sensor, which is simple to process and is conducive to reducing costs. Or it can be an FPC (Flexible Printed Circuit) sensor, or an SMT (Surface Mounted Technology) pressure sensor of other types. By forming the sensor body 3121 into a simply supported beam structure with good stability, it can effectively resist external vibration and distortion, thereby ensuring the stability and accuracy of the sensor body 3121 during the measurement process. Secondly, the simply supported beam structure can make the sensor body 3121 evenly stressed, reduce the risk of sensor deformation or damage caused by uneven stress, and thus improve the reliability and service life of the sensor. The specific deformation measurement process is as follows: when the external force is transmitted to the driving rod 22, the driving rod 22 is deformed, and the deformation is directly transmitted to the sensor body 3121. The sensor body 3121 is deformed and the sensed deformation is converted into an electrical signal output to measure the deformation of the driving rod 22.
[0042] Reference Figure 3 In another embodiment of the present application, the sensor assembly 30 is composed of a sensor body 3121 and a transmission member 32. The transmission member 32 is connected to the fixed bracket 10 and partially contacts the drive rod 22, and the sensor body 3121 is arranged in abutment with the transmission member 32. Such a setting makes it unnecessary for the sensor body 3121 to directly contact the drive rod 22, effectively reducing the friction between them, reducing the risk of wear and damage to the sensor body 3121, and thus extending its service life. At the same time, the transmission member 32 is connected to the fixed bracket 10 to ensure the stability of its structure. Through the contact between the transmission member 32 and the sensor body 3121 and the drive rod 22, the deformation change on the drive rod 22 can be effectively transmitted to the sensor body 3121. It should be emphasized that the transmission member 32 can be made of various materials, such as polymer materials, metal materials, etc., and can have various shapes, such as cylindrical, rectangular, irregular shapes, etc., which are not limited in the present application. In addition, the sensor body 3121 can be fixed to the fixed bracket 10 by means of screw fixing, gluing, snap-on limiting, etc., or the sensor body 3121 can also be directly fixed to the transmission component 32. The specific selection can be made by technical personnel in this field according to needs.
[0043] The specific deformation measurement process is as follows: when an external force acts on the driving rod 22, the driving rod 22 is deformed, and this deformation is transmitted to the sensor body 3121 through the transmission member 32. The sensor body 3121 then undergoes corresponding deformation and converts it into an electrical signal output. This process realizes accurate measurement of deformation and provides a reliable solution for data collection and monitoring in various application scenarios.
[0044] Furthermore, the transfer member 32 is arranged in abutment with the outer wall of the driving rod 22, and the two ends of the sensor body 3121 are respectively supported on both sides of the fixed bracket 10 to form a simply supported beam structure, and the sensor body 3121 is arranged in abutment with the outer wall of the transfer member 32. In this way, by the abutment between the transfer member 32 and the outer wall of the driving rod 22, it is ensured that the transfer member 32 effectively transmits the deformation of the driving rod 22 to the sensor body 3121. Secondly, the two ends of the sensor body 3121 are supported on both sides of the fixed bracket 10 to form a simply supported beam structure, which effectively improves the stability of the sensor body 3121, effectively reduces the influence of external vibration or distortion on the sensor body 3121, and improves the accuracy of measurement. At the same time, the simply supported beam structure can make the sensor body 3121 evenly stressed, reduce the risk of sensor deformation or damage caused by uneven stress, and thus improve the reliability and service life of the sensor.
[0045] Reference Figure 4 In yet another embodiment, the transfer member 32 is arranged to abut against the outer wall of the driving rod 22, one end of the sensor body 3121 is connected to the fixed bracket 10, and the other end is arranged to abut against the outer wall of the transfer member 32 to form a cantilever beam structure. First, the cantilever beam structure can make the sensor body 3121 more flexible in the case of single-sided connection, which is suitable for some special installation scenarios. Secondly, through the abutment between the transfer member 32 and the outer wall of the driving rod 22, the sensor body 3121 can more accurately sense and transmit external deformation information, thereby improving the measurement accuracy and reliability. In addition, the design of the cantilever beam structure also makes the sensor assembly 30 more compact, saves installation space, and is suitable for application scenarios with limited space.
[0046] Reference Figure 5In some structural forms, the transmission member 32 includes a sleeve component 321 and a support frame 322, the support frame 322 is arranged on the fixed bracket 10, the sleeve component 321 is sleeved on the outer periphery of the driving rod 22, the two ends of the support frame 322 are respectively supported on both sides of the fixed bracket 10 to form a simply supported beam structure, the support frame 322 is abutted against the outer wall of the sleeve component 321, and the sensor body 3121 is connected to the support frame 322. Such a structural design brings multiple beneficial effects. First, through the connection of the support frame 322 with the fixed bracket 10 and the abutment with the sleeve component 321, the stability of the entire sensor assembly 30 is enhanced, and the deformation on the driving rod 22 is effectively transmitted to the sensor body 3121. Secondly, the simply supported beam structure of the support frame 322 makes the sensor body 3121 less affected by external disturbances, thereby improving the accuracy and stability of the measurement. At the same time, the sensor body 3121 is connected to the support frame 322, making the entire structure more compact and suitable for various scenarios with space restrictions. This design not only meets the demand for precise measurement, but also improves the reliability and stability of the system, providing a reliable solution for various engineering and scientific applications.
[0047] Reference Figure 6 In other structural forms, the transmission member 32 includes a sleeve component 321 and a support frame 322, the support frame 322 is arranged on the fixed bracket 10, the sleeve component 321 is sleeved on the outer periphery of the drive rod 22, one end of the support frame 322 is connected to the fixed bracket 10, and the other end is abutted against the outer wall of the sleeve component 321 to form a cantilever beam structure, and the sensor body 3121 is connected to the support frame 322. First, the stability of the entire sensor assembly 30 is enhanced by the connection of the support frame 322 with the fixed bracket 10 and the abutment with the sleeve component 321, which can effectively transmit the deformation on the drive rod 22 to the sensor body 3121. Secondly, the cantilever beam structure makes the sensor body 3121 more flexible in the case of single-sided connection, which is suitable for some special installation scenarios. At the same time, the sensor body 3121 is connected to the support frame 322, which makes the entire structure more compact, saves installation space, and is suitable for application scenarios with limited space. This design not only improves the reliability and stability of the system, but also meets the needs for precise measurement, providing a reliable solution for various engineering and scientific applications.
[0048] Furthermore, the support frame 322 and the fixed bracket 10 are an integrated structure. This integrated design brings many advantages. First, the assembly process is simplified, the number of parts is reduced, and the manufacturing cost is reduced. Secondly, the integrated structure improves the overall stability and reliability of the system and reduces the possibility of loosening or breakage between components. In addition, since the support frame 322 and the fixed bracket 10 are integrated, the structural rigidity of the sensor system is enhanced, which can better resist external vibration and impact, and improve the working performance and life of the sensor. In summary, the integrated design of the support frame 322 and the fixed bracket 10 not only simplifies the manufacturing and installation process, but also improves the stability and reliability of the system, providing a more reliable solution for various engineering applications.
[0049] The present application also proposes an electric toothbrush, which includes a brush handle and a brush head connected to each other, and a deformation detection structure 100 is installed in the brush handle. The specific structure of the deformation detection structure 100 refers to the above embodiment. Since the electric toothbrush adopts all the technical solutions of all the above embodiments, it at least has all the beneficial effects brought by the technical solutions of the above embodiments, which will not be described one by one here. Of course, it should be noted that the deformation can be applied to the above-mentioned electric toothbrush, and can also be applied to appliances that need deformation detection.
[0050] The same or similar numbers in the drawings of this embodiment correspond to the same or similar parts; in the description of this application, it should be understood that if the terms "upper", "lower", "left", "right", etc. indicate an orientation or position relationship based on the orientation or position relationship shown in the drawings, it is only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the position relationship in the drawings are only used for illustrative purposes and cannot be understood as a limitation on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.
[0051] The above are only preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.
Claims
1. A deformation detection structure, characterized in that: include: Fixed bracket; a motor, the motor comprising a body and a driving rod connected to the body, the body being disposed on the fixing bracket; and a sensor assembly, wherein the sensor assembly is connected to the fixing bracket, and a portion of the sensor assembly abuts against the driving rod to measure the deformation of the driving rod.
2. The deformation detection structure according to claim 1, characterized in that: The sensor assembly comprises a sensor body, two ends of which are respectively supported on two sides of the fixing bracket to form a simply supported beam structure, and the sensor body is in contact with the driving rod.
3. The deformation detection structure according to claim 1, characterized in that: The sensor assembly comprises a sensor body, one end of which is connected to the fixing bracket, and the other end of which is abutted against the driving rod to form a cantilever beam structure.
4. The deformation detection structure according to claim 1, characterized in that: The sensor assembly includes a sensor body and a transmission member. The transmission member is connected to the fixing bracket and at least partially abuts against the driving rod. The sensor body is disposed in abutment with the transmission member.
5. The deformation detection structure according to claim 4, characterized in that: The transmission member is disposed in abutment with the outer wall of the driving rod, two ends of the sensor body are respectively supported on two sides of the fixing bracket to form a simply supported beam structure, and the sensor body is disposed in abutment with the outer wall of the transmission member.
6. The deformation detection structure according to claim 4, characterized in that: The transmission member is disposed in contact with the outer wall of the driving rod, one end of the sensor body is connected to the fixing bracket, and the other end is disposed in contact with the outer wall of the transmission member to form a cantilever beam structure.
7. The deformation detection structure according to claim 4, characterized in that: The transmission component includes a sleeve component and a support frame, the support frame is arranged on the fixed bracket, the sleeve component is sleeved on the outer periphery of the driving rod, the two ends of the support frame are respectively supported on both sides of the fixed bracket to form a simply supported beam structure, the support frame is arranged in contact with the outer wall of the sleeve component, and the sensor body is connected to the support frame.
8. The deformation detection structure according to claim 4, characterized in that: The transmission component includes a sleeve component and a support frame, the support frame is arranged on the fixed bracket, the sleeve component is sleeved on the outer periphery of the driving rod, one end of the support frame is connected to the fixed bracket, and the other end abuts against the outer wall of the sleeve component to form a cantilever beam structure, and the sensor body is connected to the support frame.
9. The deformation detection structure according to claim 7 or 8, characterized in that: The support frame and the fixing frame are an integrated structure.
10. An electric toothbrush, characterized in that: The method comprises a deformation detection structure as claimed in any one of claims 1 to 9.