Encoder and electronic device
By setting multiple projections on the inner or outer ring of the encoder and transforming into electrical signals by using the induction component, the existing encoder has solved the problem of few gears and low accuracy, and a high-precision multi-speed encoder design is realized.
Patent Information
- Application Number
- CN202411547213.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-31
- Publication Date
- 2025-02-25
AI Technical Summary
Existing mechanical encoders have fewer gears, resulting in lower accuracy.
An encoder is designed to realize the multi-speed setting by setting multiple protrusions on the inner or outer ring and using the induction assembly to deform under the action of the protrusions and convert them into electrical signals.
The number and accuracy of the encoder gears are improved, and the rotation accuracy and multi-speed settings are achieved.
Smart Images
Figure CN119509590A_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of electronic technology, and more specifically, to an encoder and an electronic device. Background Art
[0002] Electronic devices such as knob switches in the prior art can be implemented by mechanical encoders, but current mechanical encoders usually have fewer gears, resulting in lower accuracy. Summary of the invention
[0003] An object of the present application is to provide a new technical solution for encoders and electronic devices.
[0004] According to a first aspect of the present application, there is provided an encoder, comprising:
[0005] An inner ring and an outer ring, wherein the outer ring is rotatably arranged on the outer side of the inner ring, and a plurality of protrusions are arranged on the inner side of the outer ring or the outer side of the inner ring, and a groove is formed between two adjacent protrusions;
[0006] A sensing component, wherein the sensing component is disposed on the inner ring or the outer ring where the protrusion is not disposed, and partially extends into the groove;
[0007] When the outer ring rotates, the plurality of protrusions can respectively cause the sensing component to deform, and the sensing component can convert the deformation amount of the deformation into an electrical signal.
[0008] Optionally, the sensing component includes a probe, an elastic member and a sensing device;
[0009] The two ends of the elastic member are respectively connected to the probe and the sensing device, the sensing device is fixed on the inner ring or the outer ring, and the probe is extended into the groove;
[0010] When the outer ring rotates, the plurality of protrusions can respectively cause the elastic member to deform through the probe, and the sensing device can sense the deformation amount of the elastic member and convert the deformation amount into the electrical signal.
[0011] Optionally, the sensing device is a vibration sensor, the elastic member is a spring, and the vibration sensor is fixed on the inner ring or the outer ring;
[0012] The plurality of protrusions can respectively compress the spring through the probe, and the vibration sensor can sense the compression amount of the spring and convert the compression amount into the electrical signal.
[0013] Optionally, the induction device comprises a magnet and a coil, the magnet is fixed on the inner ring or the outer ring, and the coil is arranged on the elastic member;
[0014] When the outer ring rotates, the plurality of protrusions can respectively enable the elastic member to drive the coil to approach or move away from the magnet through the probe.
[0015] Optionally, the elastic member and the coil are configured as the same spring.
[0016] Optionally, it further comprises a signal amplifier and a control module, and the sensing component is connected to the control module via the signal amplifier;
[0017] The signal amplifier is configured to amplify the electrical signal, and the control module is configured to process and transmit the electrical signal.
[0018] Optionally, a plurality of the protrusions are evenly arranged along the inner side of the outer ring or the outer side of the inner ring.
[0019] Optionally, the plurality of protrusions are sawtooth-shaped, and the sawtooth portions have the same shape and size.
[0020] Optionally, each saw tooth has a first inclined surface and a second inclined surface on both sides, and the first inclined surface and the second inclined surface have different slopes.
[0021] According to a second aspect of the present application, an electronic device is provided, comprising: the encoder described in the first aspect.
[0022] According to one embodiment of the present application, the present application increases the number and accuracy of the encoder's gears by providing a plurality of protrusions on the inner ring or the outer ring, and by the action of the plurality of protrusions on the sensing component, enabling it to deform and converting the deformation into an electrical signal.
[0023] Other features and advantages of the present application will become apparent from the following detailed description of exemplary embodiments of the present application with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the application and, together with the description, serve to explain the principles of the application.
[0025] Figure 1 This is one of the structural schematic diagrams of an encoder provided in this application.
[0026] Figure 2 This is the second structural schematic diagram of an encoder provided by this application.
[0027] Description of reference numerals:
[0028] 1. Inner ring; 2. Outer ring; 21. Raised part; 3. Sensing component; 31. Probe; 32. Spring; 33. Vibration sensor; 34. Magnet; 35. Coil. DETAILED DESCRIPTION
[0029] Various exemplary embodiments of the present application will now be described in detail with reference to the accompanying drawings. It should be noted that unless otherwise specifically stated, the relative arrangement of components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present application.
[0030] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the present application, its application, or uses.
[0031] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered part of the specification.
[0032] In all examples shown and discussed herein, any specific values should be interpreted as merely exemplary and not limiting. Therefore, other examples of the exemplary embodiments may have different values.
[0033] It should be noted that like reference numerals and letters refer to similar items in the following figures, and therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.
[0034] In practical applications, the encoder can be applied to automotive electronics or consumer electronics, such as a rotary switch in automotive electronics or a remote control in consumer electronics, which can be implemented using the encoder provided in this application.
[0035] like Figure 1 to Figure 2 As shown, according to the first aspect of the present application, an encoder is provided, comprising an inner ring 1, an outer ring 2 and a sensing component 3; the outer ring 2 is rotatably arranged on the outer side of the inner ring 1, and a plurality of protrusions 21 are arranged on the inner side of the outer ring 2 or the outer side of the inner ring 1, and a groove is formed between two adjacent protrusions 21; the sensing component 3 is arranged on the inner ring 1 or the outer ring 2 where the protrusions 21 are not arranged, and partially extends into the groove; when the outer ring 2 rotates, the plurality of protrusions 21 can respectively cause the sensing component 3 to deform, and the sensing component 3 can convert the deformation amount of the deformation into an electrical signal.
[0036] Specifically, in this embodiment, the inner ring 1 and the outer ring 2 can rotate relative to each other, so that the multiple protrusions 21 can rotate relative to the sensing component 3, that is, each protrusion 21 can act on the sensing component 3 to achieve the purpose of setting multiple gears. The number of protrusions 21 can be set to dozens, hundreds, or even thousands according to actual needs. Each protrusion 21 is equivalent to a gear, so that the gears of the encoder can be sufficient. Compared with the encoder with more than a dozen gears in the prior art, the number of gears is greatly increased, thereby improving the accuracy of the encoder.
[0037] In the above structure, when the outer ring 2 rotates relative to the inner ring 1, multiple protrusions 21 pass through and act on the sensing component 3 in sequence, so that the sensing component 3 can undergo multiple deformation cycles and can continuously convert the change of the deformation amount in each cycle into the change of the electrical signal. Among them, one deformation cycle is one gear, so as to achieve the purpose of setting multiple gears. In practical applications, the cycle length of the deformation or the size of the deformation amount can also be controlled by setting the interval size between each protrusion 21, the shape of each protrusion 21 and other features. The specific design can be made according to actual needs, and this application does not limit this. In addition, the rotation angle of the encoder provided in this embodiment can be determined by the number of protrusions 21. For example, if there are N protrusions 21, then the change of the deformation amount in one cycle is detected, and the rotation angle is 360 / N.
[0038] In the above embodiment, the shape of the protrusion 21 can be designed as a triangular or arc-shaped protrusion to improve the smoothness of the rotation of the outer ring 2 and the inner ring 1, avoid the protrusion 21 and the sensing component 3 from getting stuck, and improve the reliability of the encoder. In addition, the outer ring 2 is rotatably arranged on the outside of the inner ring 1, which can be understood as the inner ring 1 is fixed and the outer ring 2 is rotatable relative to the inner ring 1, or the outer ring 2 is fixed and the inner ring 1 is rotatable relative to the outer ring 2. When the outer ring 2 rotates, it means rotating the outer ring 2 or the inner ring 1, so as to improve the flexibility of the encoder setting. The sensing component 3 is arranged on the inner ring 1 or the outer ring 2 without the protrusion 21, that is, if multiple protrusions 21 are arranged on the outside of the inner ring 1, the sensing component 3 is arranged on the outer ring 2, and if multiple protrusions 21 are arranged on the inner ring 1 of the outer ring 2, the sensing component 3 is arranged on the inner ring 1, so as to realize the deformation effect of multiple protrusions 21 on the sensing component 3. The elastic member can be a spring 32 or other objects that can undergo elastic deformation.
[0039] The above-mentioned encoder provided in the present application can not only provide multiple gears to improve its accuracy, but also enable the encoder to be miniaturized based on a relatively simple structure, thereby reducing the space occupied by the encoder, so that it can be applied to products with high integration and miniaturization requirements, such as knob switches for automotive electronics, or remote controls for consumer electronics.
[0040] Alternatively, if Figure 1 to Figure 2 As shown, the sensing component 3 includes a probe 31, an elastic member and a sensing device; the two ends of the elastic member are respectively connected to the probe 31 and the sensing device, the sensing device is fixed on the inner ring 1 or the outer ring 2, and the probe 31 is extended into the groove; when the outer ring 2 rotates, the multiple protrusions 21 can respectively deform the elastic member through the probe 31, and the sensing device can sense the deformation of the elastic member and convert the deformation into an electrical signal.
[0041] Specifically, in this embodiment, the probe 31 can be designed as a thin cylindrical shape, so that it can be inserted into the groove, so that each protrusion 21 can act on the probe 31 in turn. Based on the connection between the probe 31 and the elastic member, the protrusion 21 can realize the deformation of the elastic member by pushing the probe 31 to move, so that the sensing member senses the deformation of the elastic member and converts it into an electrical signal output, thereby realizing the deformation and conversion of the sensing component 3. Among them, the sensing device can sense the deformation of the elastic member based on electromagnetic induction, vibration induction, etc., and this application does not limit this.
[0042] Preferably, the accuracy of the encoder can be further improved by adjusting the thickness of the probe 31 or setting the maximum stroke of the top of the probe 31 to extend to the bottom of the groove.
[0043] Alternatively, if Figure 1 As shown, the sensing device is a vibration sensor 33, the elastic member is a spring 32, and the vibration sensor 33 is fixed on the inner ring 1 or the outer ring 2; the plurality of protrusions 21 can compress the spring 32 through the probe 31 respectively, and the vibration sensor 33 can sense the compression amount of the spring 32 and convert the compression amount into an electrical signal.
[0044] Specifically, in this embodiment, the sensing element adopts a vibration sensor 33, and the elastic element is set as a spring 32. The vibration sensor 33 is fixed on the outer ring 2 or the inner ring 1 without the protrusion 21, and the spring 32 and the probe 31 are connected in sequence so that the probe 31 can extend into the groove. When the outer ring 2 rotates relative to the inner ring 1, the end of the probe 31 moves along the contour of the protrusion 21, which will cause the compression of the spring 32, and a deformation cycle will be generated on the spring 32 every time the rotation stroke passes through a protrusion 21. Since the compression of the spring 32 is linearly proportional to the tension of the spring 32, the spring 32 will transmit this deformation or vibration to the vibration sensor 33, and the vibration sensor 33 can convert this deformation or vibration into electrical signals of different sizes.
[0045] In the above structure, the sensing form of the spring 32 and the vibration sensor 33 can simplify the structure of the sensing component 3, which is beneficial to the miniaturization design of the entire encoder.
[0046] Alternatively, if Figure 2As shown, the induction device includes a magnet 34 and a coil 35. The magnet 34 is fixed on the inner ring 1 or the outer ring 2, and the coil 35 is arranged on the elastic member. When the outer ring 2 rotates, the multiple protrusions 21 can respectively enable the elastic member to drive the coil 35 close to or away from the magnet 34 through the probe 31.
[0047] Specifically, in this embodiment, the induction member is composed of a coil 35 and a magnet 34, and the two ends of the elastic member are connected to the magnet 34 and the probe 31 respectively. When the coil 35 is fixed on the elastic member, the probe 31 is sequentially acted upon by the plurality of protrusions 21, so that the elastic member is deformed, and then the coil 35 fixed on the elastic member is driven to move, so that the distance between the coil 35 and the magnet 34 changes. Based on Lenz's law: the induced current has such a direction that the magnetic field of the induced current always hinders the change of the magnetic flux causing the induced current. When the deformation of the elastic member is large, the coil 35 is close to the magnet 34 to generate a larger magnetic flux; and when the deformation of the elastic member is small, the coil 35 is away from the magnet 34 to generate a smaller magnetic flux. One deformation cycle generates one cycle of magnetic flux change, which can cause the current or voltage of the coil 35 to change within one cycle, thereby achieving the purpose of converting the deformation amount into an electrical signal change.
[0048] In the above structure, the induction device is in the form of a coil 35 and a magnet 34, which can improve the accuracy of the encoder. It should be noted that other components such as the inner ring 1, the outer ring 2 and the probe 31 can be made of insulating materials to avoid affecting the induction of the coil 35 and the magnet 34. In addition, the connection between the elastic member and the probe 31 can be achieved through a structure such as a connecting block to facilitate the assembly of the components. Furthermore, the entire induction component 3 can be embedded in the inner ring 1 or the outer ring 2, and at least a part of the probe 31 can extend out of the inner ring 1 or the outer ring 2 and extend into the groove to further reduce the volume of the encoder.
[0049] Preferably, the inner ring 1 is fixed, the outer ring 2 is rotatably arranged on the outside of the inner ring 1, a plurality of protrusions 21 are evenly arranged on the side of the outer ring 2 facing the inner ring 1, the sensing component 3 is arranged inside the inner ring 1, and the probe 31 is partially extended to the bottom of the groove between two adjacent protrusions 21 on the outer ring 2, thereby further optimizing the structure of the entire encoder and improving its convenience in assembly and use.
[0050] Alternatively, if Figure 2 As shown, the elastic member and the coil 35 are provided as the same spring 32 .
[0051] Specifically, in one embodiment, the elastic member and the coil 35 can be designed as an integrated structure, that is, the elastic member is designed as the structure of the spring 32, and the spring 32 is used as the coil 35, so that the spring 32 is reused and the structure is further simplified. When the elastic member and the coil 35 are the same spring 32, based on Lenz's law, since rotation will cause deformation of the spring 32 (coil 35), and the compression amount of the spring 32 is different, the magnetic flux of the spring 32 is different, so the rotation will cause a change in the magnetic flux of the spring 32, because the change in magnetic flux will generate an induced electromotive force, and then generate an induced current.
[0052] In practical applications, the spring 32 (coil 35) has two pins for connecting external devices to realize the transmission of electrical signals. In addition, when the spring 32 is only used as an elastic member and the coil 35 is independently two parts, the coil 35 can be arranged inside or outside the spring 32.
[0053] Optionally, it also includes a signal amplifier and a control module, and the sensing component 3 is connected to the control module via the signal amplifier; the signal amplifier is configured to amplify electrical signals, and the control module is configured to process and transmit electrical signals.
[0054] Specifically, in practical applications, the setting of the signal amplifier can amplify the electrical signal converted by the sensing component 3, improve the strength of the electrical signal, extend its transmission distance, and increase the communication capability of the entire encoder, so that the entire encoder can be designed to be more compact and lightweight. The setting of the control module can process the amplified electrical signal and transmit it. Other actuators can execute corresponding action instructions by receiving the processed signal. Among them, the signal amplifier can adopt an amplification circuit, and the control module can adopt an MCU (microcontroller unit) or the like.
[0055] Alternatively, if Figure 1 to Figure 2 As shown, multiple protrusions 21 are evenly arranged along the inner side of the outer ring 2 or the outer side of the inner ring 1. The even arrangement of multiple protrusions 21 makes the changes of the electrical signals in each deformation cycle of the sensing component 3 the same or similar, which is convenient for identifying each gear position, reduces the processing difficulty of the encoder, and reduces the production cost. Among them, multiple protrusions 21 can be arranged at intervals or continuously, and this application does not limit this.
[0056] Alternatively, if Figure 1 to Figure 2 As shown, the plurality of protrusions 21 are sawtooth-shaped, and the sawtooth shapes and sizes are the same.
[0057] Specifically, the shape of the protrusion 21 determines the size and change form of the deformation of the sensing component 3. In this embodiment, by designing multiple protrusions 21 to be serrated, it is not only beneficial to the movement of the sensing component 3 relative to the protrusion 21, but also can increase the change amount of the sensing component 3 in each deformation cycle, thereby improving the usability of the encoder. Among them, the deformation of the sensing component 3 can cause a part of the sensing component 3 to deform, so as to separate the deformed part from the sensing part, thereby reducing the difficulty of its processing and assembly. In addition, setting the shape and size of each sawtooth to be the same can facilitate the identification of each deformation cycle and improve the gear recognition accuracy.
[0058] Alternatively, if Figure 1 to Figure 2 As shown, each saw tooth has a first inclined surface and a second inclined surface on both sides, and the first inclined surface and the second inclined surface have different slopes.
[0059] Specifically, in this embodiment, the first inclined surface and the second inclined surface of each sawtooth have different slopes, so that when the outer ring 2 rotates forward or reversely relative to the inner ring 1, the vibration (deformation) waveform generated by the induction component 3 is different, and the waveform of the generated electrical signal is different. In this way, the purpose of determining the rotation direction can be achieved, the number of gears is further increased, and the accuracy of the encoder is improved.
[0060] According to the second aspect of the present application, reference Figure 1 to Figure 2 , provides an electronic device, including: the encoder of the first aspect.
[0061] Specifically, in this embodiment, the electronic device adopts the encoder provided by the first aspect, which has more gears, higher precision, and smaller size, and can improve the integration of the electronic device and realize the miniaturization of the product. The electronic device can be an automotive electronic device or a consumer electronic device, etc., and this application does not limit this.
[0062] The above embodiments focus on the differences between the various embodiments. As long as the different optimization features between the various embodiments are not contradictory, they can be combined to form a better embodiment. Considering the simplicity of the text, they will not be repeated here.
[0063] Although some specific embodiments of the present application have been described in detail by way of example, it should be understood by those skilled in the art that the above examples are only for illustration, not for limiting the scope of the present application. It should be understood by those skilled in the art that the above embodiments may be modified without departing from the scope and spirit of the present application. The scope of the present application is defined by the appended claims.
Claims
1. An encoder, characterized in that: include: An inner ring and an outer ring, wherein the outer ring is rotatably arranged on the outer side of the inner ring, and a plurality of protrusions are arranged on the inner side of the outer ring or the outer side of the inner ring, and a groove is formed between two adjacent protrusions; A sensing component, wherein the sensing component is disposed on the inner ring or the outer ring where the protrusion is not disposed, and partially extends into the groove; When the outer ring rotates, the plurality of protrusions can respectively cause the sensing component to deform, and the sensing component can convert the deformation amount of the deformation into an electrical signal.
2. The encoder according to claim 1, characterized in that The sensing component includes a probe, an elastic member and a sensing device; The two ends of the elastic member are respectively connected to the probe and the sensing device, the sensing device is fixed on the inner ring or the outer ring, and the probe is extended into the groove; When the outer ring rotates, the plurality of protrusions can respectively cause the elastic member to deform through the probe, and the sensing device can sense the deformation amount of the elastic member and convert the deformation amount into the electrical signal.
3. The encoder according to claim 2, characterized in that The sensing device is a vibration sensor, the elastic member is a spring, and the vibration sensor is fixed on the inner ring or the outer ring; The plurality of protrusions can respectively compress the spring through the probe, and the vibration sensor can sense the compression amount of the spring and convert the compression amount into the electrical signal.
4. The encoder according to claim 2, characterized in that The induction device comprises a magnet and a coil, wherein the magnet is fixed on the inner ring or the outer ring, and the coil is arranged on the elastic member; When the outer ring rotates, the plurality of protrusions can respectively enable the elastic member to drive the coil to approach or move away from the magnet through the probe.
5. The encoder according to claim 4, characterized in that The elastic member and the coil are configured as the same spring.
6. The encoder according to claim 1, characterized in that It also includes a signal amplifier and a control module, and the sensing component is connected to the control module through the signal amplifier; The signal amplifier is configured to amplify the electrical signal, and the control module is configured to process and transmit the electrical signal.
7. The encoder according to claim 1, characterized in that The plurality of protrusions are evenly arranged along the inner side of the outer ring or the outer side of the inner ring.
8. The encoder according to claim 1, characterized in that The plurality of protrusions are sawtooth-shaped, and the sawtooth shapes and sizes are the same.
9. The encoder according to claim 8, characterized in that Each of the saw teeth has a first inclined surface and a second inclined surface at two sides, and the first inclined surface and the second inclined surface have different slopes.
10. An electronic device, characterized in that: include: An encoder as claimed in any one of claims 1 to 9.