Low-power-consumption coding device and motor
By using a magnetic switch unit in the encoder to detect the number of rotations of the target object, the problem of large power consumption in the power-down mode is solved, and the low-power ring meter function is realized, which extends the battery life time.
Patent Information
- Application Number
- CN202422206146.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-09
- Publication Date
- 2025-07-25
- Estimated Expiration
- 2034-09-09
AI Technical Summary
Existing encoders consume a lot of power in power-down mode, resulting in short battery life and prone to loop loss.
The magnetic switching unit is used to detect the number of rotation rings of the target object, including magnetic parts and magnetic switching chips, and generate a ring signal using magnetic field changes to reduce power consumption and dependence on the battery.
It greatly saves energy consumption, increases the battery life of the battery unit, and avoids the problem of frequent battery replacement.
Smart Images
Figure CN223154284U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of coding, in particular to a low-power coding device and a motor. Background Art
[0002] At present, after a photoelectric encoder loses power, it mainly relies on a backup battery to supply power to implement the function of counting turns. This method requires the system to still be able to output light with a certain frequency and intensity (turn on the LED) after power-off, so that the optical receiver can output orthogonal jump signals to the processor after the code disk of the encoder rotates one circle, thereby realizing the function of counting turns under power-off.
[0003] Since this method needs to frequently turn on the LED in the power-off mode, and as the rotation speed increases, the frequency of turning on the light will increase, which will cause a relatively large load current on the battery, resulting in too high standby power consumption of the encoder and reducing the usage time in the power-off mode. Therefore, the battery needs to be frequently replaced to ensure the normal operation of the encoder. Otherwise, it is easy to have the phenomenon of losing turns after the next startup. Summary of the Utility Model
[0004] The technical problem to be solved by the embodiments of the utility model is the problem of large power consumption of the existing encoder in the power-off mode.
[0005] To solve the above problems, in a first aspect, the embodiments of the utility model propose a low-power coding device for detecting the number of turns of a target object rotating. The low-power coding device includes a battery unit, a processor, a magnetic member, and a magnetic switch unit; the battery unit is connected to the processor and the magnetic switch unit, the magnetic switch unit is connected to the processor, the magnetic member is arranged on the target object, the magnetic switch unit is arranged on one side of the magnetic member, and the magnetic member is within the detection range of the magnetic switch unit.
[0006] A further technical solution thereof is that the magnetic member is a magnetic ring, the magnetic ring is sleeved on the target object and can rotate with the target object.
[0007] A further technical solution thereof is that the magnetic switch unit includes a first magnetic switch chip, and the first magnetic switch chip is respectively connected to the battery unit and the processor.
[0008] A further technical solution thereof is that the magnetic switch unit includes a second magnetic switch chip, and the second magnetic switch chip is respectively connected to the battery unit and the processor.
[0009] A further technical solution thereof is that the low-power encoding device further includes a light-emitting element, a light receiver, and a grating code disk; the light-emitting element, the light receiver, the grating code disk, and the processor are all connected to an external power supply; the grating code disk is disposed on the target object, and the light-emitting element and the light receiver are respectively located on both sides of the grating code disk, and the light receiver is connected to the processor.
[0010] A further technical solution thereof is that the low-power encoding device further includes a control switch, and the control switch is respectively connected to the processor, the light-emitting element, and the external power supply.
[0011] A further technical solution thereof is that the light-emitting element is a light-emitting diode.
[0012] A further technical solution thereof is that the grating code disk is sleeved on the target object and can rotate along with the target object.
[0013] A further technical solution thereof is that the processor includes a communication interface for connecting to a controller.
[0014] In a second aspect, an embodiment of the present invention provides a motor, including the low-power encoding device as described in the first aspect, wherein the target object is an output shaft of the motor.
[0015] Compared with the prior art, the technical effects that can be achieved by the embodiments of the present invention include:
[0016] In the technical solution of the present invention, when the low-power encoding device loses power, the battery unit supplies power to the processor and the magnetic switch unit, and the processor and the magnetic switch unit detect the number of turns of the rotation of the target object. Since the magnetic switch unit has extremely low power consumption, compared with the LED lamp, it can greatly save energy consumption and increase the battery life of the battery unit. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] The accompanying drawings herein are incorporated into the specification and constitute a part of this specification, showing embodiments consistent with the present invention and used together with the specification to explain the principles of the present invention.
[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, for those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.
[0019] One or more embodiments are exemplarily illustrated by the pictures in the corresponding drawings. These exemplary illustrations do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings represent similar elements, unless otherwise stated. The drawings in the figures do not constitute a scale limitation.
[0020] Figure 1 The structural block diagram of a low-power encoding device proposed by an embodiment of the present invention;
[0021] Figure 2 The circuit block diagram of a low-power encoding device proposed by an embodiment of the present invention.
[0022] Reference numeral
[0023] Battery unit 10, processor 20, magnetic part 30, magnetic switch unit 40, light-emitting part 50, optical receiver 60, grating code disk 70, external power supply 80, control switch 90, target object 100, first magnetic switch chip 41, second magnetic switch chip 42, communication interface 21. Detailed implementation manners
[0024] Next, the technical solutions in the embodiments will be clearly and completely described in conjunction with the drawings in the embodiments of the present invention. Similar component labels in the drawings represent similar components. Obviously, the embodiments described below are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
[0025] It should be understood that when used in this specification and the appended claims, the terms "comprises" and "comprising" indicate the presence of the described features, wholes, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, components, and / or their combinations.
[0026] It should also be understood that the terms used in the specification of the embodiments of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the embodiments of the present invention. As used in the specification of the embodiments of the present invention and the appended claims, unless the context clearly indicates otherwise, the singular forms "a", "an", and "the" are intended to include the plural forms.
[0027] See Figure 1 - Figure 2, an embodiment of the present utility model proposes a low-power encoding device, which is used to detect the number of rotations of the target object 100 and has the advantage of low energy consumption in the power-off mode. The target object 100 can specifically be the output shaft of a motor. To achieve the above purpose of low power consumption, the low-power encoding device includes a battery unit 10, a processor 20, a magnetic member 30, and a magnetic switch unit 40. The specific structure is introduced as follows:
[0028] In specific implementation, the battery unit 10 can specifically be a storage battery, such as a lithium battery, and the present utility model does not specifically limit this.
[0029] The battery unit 10 is connected to the processor 20 and the magnetic switch unit 40, and the battery unit 10 is used to supply power to the processor 20 and the magnetic switch unit 40 when the low-power encoding device is powered off.
[0030] The magnetic switch unit 40 is connected to the processor 20, the magnetic member 30 is disposed on the target object 100, and the magnetic switch unit 40 is disposed on one side of the magnetic member 30 so that the magnetic member 30 is within the detection range of the magnetic switch unit 40.
[0031] Specifically, when the target object 100 rotates, it will synchronously drive the magnetic member 30 to rotate. When the magnetic member 30 rotates, it will cause the magnetic field to change. The magnetic switch unit 40 detects the change of the magnetic field and generates a counting signal to the processor 20, so that the processor 20 determines the number of rotations of the target object 100 based on the counting signal.
[0032] In the technical solution of the present utility model, when the low-power encoding device is powered off, the battery unit 10 supplies power to the processor 20 and the magnetic switch unit 40, and the processor 20 and the magnetic switch unit 40 detect the number of rotations of the target object 100. Since the magnetic switch unit 40 has extremely low power consumption, compared with an LED lamp, it can greatly save energy consumption and increase the battery life of the battery unit 10.
[0033] Further, in some embodiments, such as this embodiment, the magnetic member 30 is a magnetic ring, the magnetic ring is sleeved on the target object 100, and can rotate with the target object 100. In specific implementation, the target object 100 is the output shaft of a motor, the output shaft passes through the central hole of the magnetic ring, and the magnetic ring is fixed on the output shaft and rotates synchronously with the output shaft.
[0034] Further, the magnetic switch unit 40 includes a first magnetic switch chip 41 and a second magnetic switch chip 42. The first magnetic switch chip 41 is respectively connected to the battery unit 10 and the processor 20. The second magnetic switch chip 42 is respectively connected to the battery unit 10 and the processor 20. In a specific implementation, the first magnetic switch chip 41 is used to detect the counting signal A, and the second magnetic switch chip 42 is used to detect the counting signal B. The phases of the counting signal A and the counting signal B differ by 90°.
[0035] The operating currents of the first magnetic switch chip 41 and the second magnetic switch chip 42 are within 10 μA, and their power consumption is extremely low, thereby greatly enhancing the battery life of the battery unit 10.
[0036] Further, the low-power encoding device further includes a light-emitting element 50, a light receiver 60, and a grating code disk 70; the light-emitting element 50, the light receiver 60, the grating code disk 70, and the processor 20 are all connected to an external power supply 80; the grating code disk 70 is disposed on the target object 100, the light-emitting element 50 and the light receiver 60 are respectively located on both sides of the grating code disk 70, the light receiver 60 is connected to the processor 20, and the light receiver 60 is used to detect the counting signal of the target object 100 and send the counting signal to the processor 20. In a specific implementation, the light-emitting element 50 may specifically be a light-emitting diode. The external power supply 80 may specifically be mains power. In the present invention, the low-power encoding device includes two sets of power supply systems, namely mains power and the battery unit 10. The battery unit 10 is used to supply power to the processor 20 and the magnetic switch unit 40 when the mains power fails. It can be understood that when the external power supply 80 fails, the processor automatically switches to be powered by the battery unit 10; when the external power supply 80 is not powered off, the processor automatically switches to be powered by the external power supply 80.
[0037] Further, the low-power encoding device further includes a control switch 90. The control switch 90 is respectively connected to the processor 20, the light-emitting element 50, and the external power supply 80. The control switch 90 may specifically be a controllable switch device, which is not specifically limited in the present invention. The control switch 90 is controlled by the processor 20. When the control switch 90 is turned on, the light-emitting element 50 emits light; when the control switch 90 is turned off, the light-emitting element 50 does not emit light.
[0038] Further, the grating code disk 70 is sleeved on the target object 100 and can rotate with the target object 100. Specifically, the target object 100 is the output shaft of a motor. The output shaft passes through the central hole of the grating code disk 70, and the grating code disk 70 is fixed on the output shaft and rotates synchronously with the output shaft.
[0039] Furthermore, the processor 20 includes a communication interface 21 for connecting to a controller. Specifically, the target object 100 is the output shaft of a motor, and the controller is the controller of the motor. The processor 20 feeds back the number of turns of the rotation of the output shaft of the motor to the controller of the motor through the communication interface 21.
[0040] An embodiment of the present invention provides a motor, which includes the low-power encoding device as proposed in any of the above embodiments, wherein the target object 100 is the output shaft of the motor.
[0041] In the above embodiments, the descriptions of the various embodiments have their own emphases. For parts not described in detail in a certain embodiment, reference may be made to the relevant descriptions of other embodiments.
[0042] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention 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, and thus should not be construed as a limitation to the present invention.
[0043] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, the meaning of "a plurality" is two or more, unless otherwise specifically defined.
[0044] In the present invention, unless otherwise clearly defined and limited, the terms "mounted", "connected", "connected to", "fixed", etc. should be understood in a broad sense. For example, it may be a connection, a detachable connection, or an integral body; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0045] In the present utility model, unless otherwise clearly specified and defined, the first feature being "above" or "below" the second feature may include direct contact between the first and second features, or may include the first and second features not being in direct contact but in contact through additional features therebetween. Moreover, the first feature being "above", "over" and "on top of" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "beneath" and "underneath" the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the horizontal height of the first feature is lower than that of the second feature.
[0046] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "examples", "specific examples", or "some examples", etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic expressions of the above terms should not be understood as necessarily referring to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine the different embodiments or examples described in this specification.
[0047] Obviously, those skilled in the art can make various changes and modifications to the present utility model without departing from the spirit and scope of the present utility model. Thus, provided that these modifications and variations of the present utility model fall within the scope of the claims of the present utility model and their equivalent technologies, the present utility model also intends to include these changes and modifications therein.
[0048] The above is the specific implementation manner of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model can easily think of various equivalent modifications or substitutions, and these modifications or substitutions should all be covered within the protection scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.
Claims
1. A low-power encoding device, characterized in that, For detecting the number of rotations of the target object, the low-power encoding device includes a battery unit, a processor, a magnetic component, and a magnetic switch unit; the battery unit is connected to the processor and the magnetic switch unit, the magnetic switch unit is connected to the processor, the magnetic component is disposed on the target object, the magnetic switch unit is disposed on one side of the magnetic component, and the magnetic component is within the detection range of the magnetic switch unit.
2. The low-power encoding device according to claim 1, wherein The magnetic component is a magnetic ring, and the magnetic ring is sleeved on the target object and can rotate with the target object.
3. The low-power encoding device according to claim 1, characterized in that The magnetic switch unit includes a first magnetic switch chip, and the first magnetic switch chip is respectively connected to the battery unit and the processor.
4. The low-power encoding device according to claim 3, wherein, The magnetic switch unit includes a second magnetic switch chip, and the second magnetic switch chip is respectively connected to the battery unit and the processor.
5. The low-power encoding device according to claim 1, wherein The low-power encoding device further includes a light-emitting component, a light receiver, and a grating code disk; the light-emitting component, the light receiver, the grating code disk, and the processor are all connected to an external power supply; the grating code disk is disposed on the target object, the light-emitting component and the light receiver are respectively located on both sides of the grating code disk, and the light receiver is connected to the processor.
6. The low-power encoding device according to claim 5, wherein The low-power encoding device further includes a control switch, and the control switch is respectively connected to the processor, the light-emitting component, and the external power supply.
7. The low-power encoding device according to claim 5, characterized in that, The light-emitting component is a light-emitting diode.
8. The low-power encoding device according to claim 5, characterized in that, The grating code disk is sleeved on the target object and can rotate with the target object.
9. The low-power encoding device according to claim 1, characterized in that The processor includes a communication interface, and the communication interface is used to connect to a controller.
10. A motor, characterized in that, Including the low-power encoding device according to any one of claims 1-9, wherein the target object is the output shaft of the motor.