CN217787183U - Encoder knob detection device - Google Patents

Abstract

The embodiment of the invention discloses a detection device for a rotary knob of an encoder, and relates to the technical field of instrument detection. The method comprises the following steps: the power supply device comprises a printed circuit board, wherein a power supply terminal, a controller and a signal state indicating element are arranged on the printed circuit board, the power supply terminal is electrically connected with the controller and the detection state indicating element respectively, and an input/output terminal of the controller is electrically connected with the signal state indicating element; the printed circuit board is further provided with a wiring terminal which is used for being electrically connected with the encoder knob in a matching mode, the first end of the wiring terminal is electrically connected with the input/output terminal of the controller, and the second end of the wiring terminal is used for being electrically connected with the encoder knob in a matching mode. The method is simple and easy to operate, and has low cost; the method is suitable for sampling detection of the encoder knob and instruments or equipment applying the encoder knob.

Description

Encoder knob detection device

Technical Field

The utility model relates to an instrument detects technical field, especially relates to an encoder knob detection device.

Background

Encoder knobs are widely used in instruments and equipment, and have the function of controlling the numerical change of a corresponding control object when the encoder knobs rotate. For example, clockwise rotation of the knob may control an increase in the resistance of the device, counterclockwise rotation may control a decrease in the resistance of the device, and so on.

The inventor finds out in the process of realizing the invention: at present, encoder knob detection scheme adopts batched detection more, connects encoder knob in batches in large-scale detecting system and detects, and large-scale detecting system is complicated nevertheless, and not only to operating personnel's detection operating capability requirement than higher, the cost is higher moreover.

SUMMERY OF THE UTILITY MODEL

In view of this, the embodiment of the present invention provides an encoder knob detection device, which is simple and easy to operate, and has low cost.

In order to achieve the purpose of the utility model, the following technical proposal is adopted:

in a first aspect, the embodiment of the present invention provides a printed circuit board, wherein a power supply terminal, a controller and a signal status indication element are disposed on the printed circuit board, the power supply terminal is electrically connected to the controller and the detection status indication element, respectively, and an input/output terminal of the controller is electrically connected to the signal status indication element;

still be equipped with on the printed circuit board with encoder knob cooperation electricity be connected binding post, binding post's first end with the input/output terminal electricity of controller is connected, binding post's second end be used for with encoder knob cooperation electricity is connected.

Optionally, a connection flat cable is arranged at the second end of the connection terminal, and a free end of the connection flat cable is used for being electrically connected with the encoder knob.

Optionally, the signal status indicator element is an indicator light.

Optionally, the indicator light comprises a plurality of indicator lights, and a plurality of indicator light arrays are arranged on the printed circuit board.

Optionally, the number of the indicator lights is the same as the number of the gear steps of the encoder knob.

Optionally, the indicator lights are arranged on the printed circuit board in an annular array; and/or the number of the indicator lamps is 16.

Optionally, a current limiting resistor is further disposed between the signal status indication element and the input/output terminal of the controller.

Optionally, a signal status indication element extension unit is further disposed on the printed circuit board, and the signal status indication element extension unit is electrically connected to the input/output terminal of the controller.

Optionally, an operation status indicator lamp is further disposed on the printed circuit board, and the operation status indicator lamp is electrically connected to the input/output terminal of the controller.

Optionally, the output end of the power supply terminal is provided with an energy storage power supply, and the energy storage power supply includes: the first capacitor is electrically connected to the output end of the power supply terminal, and the second capacitor and the voltage stabilizing diode are respectively connected in parallel to two ends of the first capacitor.

The embodiment of the utility model provides an encoder knob detection device, include: the power supply terminal is electrically connected with the controller and the detection state indicating element respectively, and the input/output terminal of the controller is electrically connected with the signal state indicating element; the printed circuit board is further provided with a wiring terminal which is used for being electrically connected with the encoder knob in a matching mode, the first end of the wiring terminal is electrically connected with the input/output terminal of the controller, and the second end of the wiring terminal is used for being electrically connected with the encoder knob in a matching mode. When the function of the encoder knob button needs to be detected, the detection device is electrically connected with the circuit board of the encoder knob through the connecting terminal on the printed circuit board, and the detection operation can be simply and conveniently carried out. Compare in the batch detection mode who adopts large-scale detecting system, the utility model provides an encoder knob detection device, simple easy operation, and with low costs.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic circuit block diagram of an encoder knob detecting device according to an embodiment of the present invention;

FIG. 2 is a schematic diagram of a detection application of the encoder knob detecting device of FIG. 1;

fig. 3 is a schematic view illustrating a layout of the detection status indicating element on the printed circuit board according to an embodiment of the encoder knob detecting device of the present invention;

fig. 4 is a schematic circuit diagram of an encoder knob detecting device according to an embodiment of the present invention;

fig. 5 is a schematic diagram of an energy storage and power supply circuit of an encoder knob detecting device according to an embodiment of the present invention.

Detailed Description

The embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

It should be apparent that numerous technical details are set forth in the following detailed description for purposes of explanation of the present invention in order to provide a more thorough description of the present invention, it should be apparent to one skilled in the art that the present invention may be practiced without some of these details.

In addition, some methods, means, components and applications thereof which are well known to those skilled in the art are not described in detail in order to highlight the gist of the present invention, but the present invention is not limited to the embodiments. The embodiments described herein are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without making creative efforts belong to the protection scope of the present invention.

Fig. 1 is a schematic circuit block diagram of an encoder knob detecting device according to an embodiment of the present invention; fig. 4 is a schematic circuit diagram of the encoder knob detecting device according to an embodiment of the present invention.

Referring to fig. 1 and 4, an encoder knob detection device according to an embodiment of the present invention is suitable for sampling detection of an encoder knob and an instrument or device using the encoder knob. Among them, rotary encoders are used in various instrumentation and equipment as adjustment knobs, referred to herein as encoder knobs. In some embodiments, the encoder knob detection means comprises: a Printed Circuit Board (Printed Circuit Board, PCB for short, sometimes also called PCB Board) on which a power supply terminal 10, a controller 12 and a signal status indication element 13 are disposed, the power supply terminal being electrically connected to the controller 12 and the detection status indication element, respectively, and an input/output terminal (also commonly called I/O port) of the controller 12 being electrically connected to the signal status indication element 13;

the printed circuit board is further provided with a wiring terminal 14 which is used for being electrically connected with the encoder knob in a matching mode, the first end of the wiring terminal 14 is electrically connected with the input/output terminal of the controller 12, and the second end of the wiring terminal 14 is used for being electrically connected with the encoder knob in a matching mode.

Among them, it can be understood that the encoder knob includes: encoder printed circuit board, be equipped with knob axle and communication interface on the encoder printed circuit board, when needs detect the encoder knob, through the embodiment of the utility model provides an encoder knob detection device only needs will communication interface on the printed circuit board of encoder knob with detection device's binding post 14 is connected for data signal transmits, can carry out short-term test to the function of encoder knob.

Referring to fig. 1 and 2, in some embodiments, the second end of the connection terminal 14 is provided with a connection cable 15, and a free end of the connection cable 15 is used for electrically connecting with an encoder knob. Specifically, the connection cable may be a red star connector, such as a HX25035-6A strip connector.

The connection flat cable 15 may be an FPC (Flexible Printed Circuit Board) Flexible flat cable so as to flexibly adapt to different angles to be connected with the encoder knob.

Wherein, the signal status indication element 13 may be a sound or a photoelectric indication element. In some embodiments, the signal status indicator element 13 is an indicator light. The indicator Light may be a Light Emitting Diode (LED). In order to protect the signal status indicator, please refer to fig. 4, in some embodiments, a current limiting resistor is respectively disposed before the signal status indicator, and the resistance of the current limiting resistor may be 1K. Specifically, a current-limiting resistor is arranged between the signal state indicating element and an input/output terminal of the controller, and is used for limiting the magnitude of the current of the branch where the current is located, so as to prevent the signal state indicating element from being burnt out due to excessive current.

Referring to fig. 3, the signal status indicator 13 is a plurality of indicator lights, and the plurality of indicator lights are arranged on the PCB in an array. As an alternative embodiment, the indicating lamps are distributed on the printed circuit board in an annular array. For example, a plurality of said indicator lights are arranged circumferentially in a certain region of the printed circuit board in annular equal 360 ° divisions.

When the encoder knob is used, a binary code can be generated corresponding to each rotary gear, the detection device checks the received binary code, and whether the encoder knob works normally at the gear is judged to light or extinguish the indicator lamp corresponding to the gear, so that the functional state of the encoder knob is convenient to clearly see visually.

Specifically, in order to facilitate intuitively understanding which gear of the encoder knob is failed, in some embodiments, the number of the indicator lamps is the same as the gear series of the encoder knob, so that when a certain gear of the encoder knob is failed, the corresponding indicator lamps are correspondingly turned on or turned off, and thus, inspectors can intuitively determine the specific failure point of the encoder knob.

Illustratively, the number of the LEDs is set according to the angle (the included angle between adjacent gears) changed by rotating the knob once, and if the knob is rotated once by 22.5 °, namely 16 gears, the LEDs are also set by 22.5 ° in correspondence to each other, and 16 LEDs are set by one rotation.

It should be noted that, when the step angle or the number of steps of the knob is changed, the interval angle and the number of the LEDs are correspondingly changed. For example, the gear positions of the encoder knob are four, that is, the stepping angle is 90 °, and the indicator lights of the detection device are arranged in four corresponding circles at equal intervals.

Continuing to refer to fig. 2, in some embodiments, the number of indicator lights is set to 16. The encoder knob corresponds to 16 grades of gears, can be manual in the same time or rotate 360 in the reverse time, and the step angle 22.5 of adjacent gear, through the detection device in this embodiment, when rotatory to certain one-level gear, the LED lamp is correspondingly lighted or is extinguished, can the visual display encoder knob the operating condition whether good, realizes the accurate judgement to 16 gear functions from this.

In one example, according to the binary representation instructions corresponding to different gears of the encoder knob, the encoder knob is rotated clockwise, and the control lamps are sequentially lightened from the LED1 to the LED16 one by one; rotating counterclockwise, the lights go out in sequence from LED16 to LED 1. Of course, the clockwise rotation control lamp can be turned off and the counterclockwise rotation control lamp can be turned on sequentially according to the requirement. If the gear is not lightened or extinguished according to the specified setting in a certain gear, the function of the gear is indicated to have a fault.

Of course, in order to help understand the technical solution and the technical effects of the embodiment of the present invention, the following description is provided for the working principle of the detection device of this embodiment in combination with the detection example of the encoder knob:

in this example, the power supply terminal 10 is used for inputting a direct current DC5V power source, and the power supply terminal 10 may use a TYPEC interface. The encoder knob is connected with a connection terminal 14 on the PCB of the detection device of the present embodiment through the connection flat cable 15 for data transmission and communication. The controller 12 may be selected from among SH79F326 chips.

After the encoder knob is connected with the detection device, the encoder knob is rotated clockwise or anticlockwise, each time the encoder knob is rotated by a stepping angle (namely, a gear), the controller 12 can receive a corresponding binary code instruction, the controller 12 analyzes received binary code instruction data of each group, and sends a corresponding control signal for turning on or off the LED so as to control the LED to be turned on or off, and an inspector can visually identify whether the function of the encoder knob is normal or not according to the state indicated by the LED, so that the operation is simple and convenient.

It will be appreciated that in order to facilitate the user to self-check the health status of the detection device, in some embodiments, after the encoder knob is connected to the detection device, the detection device is activated and the encoder knob is placed in gear 1, the output is 0, LED1 is not bright, and the remaining LEDs are fully bright, also in the initial state.

The gears are sequentially shifted clockwise, the controller 12 outputs low level according to the input state, the LED is turned off, and when the single chip microcomputer outputs high level and rotates anticlockwise, the LED is turned on.

In this embodiment, there is the short circuit or the open circuit problem to encoder knob welding, under initial condition, can clearly reflect in that LED can not light. Therefore, whether the stepping function of the encoder knob can be received or not, namely whether a fault exists or not can be accurately judged.

As mentioned above, the number of the indicating lamps can be adjusted according to the gear level of the encoder knob. In order to adapt to the function detection of the encoder knobs with more gear step specifications, please refer to fig. 3, in some embodiments, a signal status indication element extension unit is further disposed on the printed circuit board, and the signal status indication element extension unit is electrically connected to the input/output terminal of the controller 12.

In this embodiment, when the signal status indicating element 13 is required to be added as the signal status indicating element 13, the indicating element may be added through the signal status indicating element extension unit to adapt to the function detection of the encoder knob with more gear stages, so as to improve the reusability of the detection device, and it is not necessary to buy a new type of detection device again, thereby saving the cost.

The PCB of the detection device in this embodiment may reserve the signal status indication element extension unit when leaving the factory, and the extension unit may specifically be a mounting slot or a solder point, so that a user may select and match the encoder knob according to the detection result.

Referring to fig. 4 and 5, in some embodiments, an energy storage power supply 17 is disposed at an output end of the power supply terminal 10, specifically, the energy storage power supply 17 may be disposed between the power supply terminal 10 and each power electronic component on the printed circuit board, and the energy storage power supply 17 may be a 5v dc power supply. The energy storage power supply comprises: a first capacitor C1 electrically connected to the output end of the power supply terminal 10, and a second capacitor C2 and a zener diode D1 respectively connected in parallel to two ends of the first capacitor.

The zener diode D1 is specified as IN4007, and the first capacitor C1 mainly plays a role of energy storage for power support, i.e., supplying power to the electronic components on the circuit board, and IN one embodiment, is specified as 100 μ F16V. The second capacitance C2 primarily functions as a filter, in one embodiment, having a specification of 100 μ F10%.

Referring to fig. 4, in some embodiments, an operation status indicator light 16 (shown in the same drawing as the signal status indicator light expanded by the signal status indicator element expansion unit, or used for displaying the expanded signal status indicator light, or used for displaying the operation status indicator light in this embodiment) is further disposed on the printed circuit board, and is used for visually indicating the user to operate the gear position of the encoder knob or the binary code corresponding to the gear position, and the operation status indicator light is electrically connected to the input/output terminal of the controller 12.

Illustratively, during detection, when a detection person rotates the encoder knob to a 2-level gear, the encoder knob corresponds to the binary code 0010, after the controller 12 receives the binary code verification, the signal state indicating element 13 is turned on or off, and meanwhile, the lamps with the corresponding ordinal numbers of the operation state indicating lamps are turned on, and the lamps with the corresponding ordinal numbers are in an off state, so as to visually display the operation gear corresponding to the current signal state to the inspection person.

The lighting state of the operation state indicator can also be distinguished by different colors, for example, the operation state indicator is set to be yellow and green, so as to correspond to the values of different digits of the binary code.

Referring to fig. 3, in some embodiments, the number of the operation status indicator lamps is a group including 4. Of course, a plurality of sets may be provided as needed, and this is not particularly limited.

According to above description can know, use the utility model discloses encoder knob detection device who provides carries out the function when examining as required to the encoder knob button, will detection device is connected with the circuit board electricity of encoder knob through connecting terminal on the printed circuit board, can detect the operation simply conveniently. Compare in the batch detection mode who adopts large-scale detecting system, the utility model provides an encoder knob detection device, simple easy operation, and with low costs.

Furthermore, the utility model can visually and visually judge whether the stepping function of the encoder knob is normal, specifically whether the stepping signal is received, and can visually indicate the detection result; and the cost is low. Therefore, the method is suitable for the encoder small-batch purchase or spot check scene.

It should be noted that the terms "upper", "lower", and the like, herein indicate orientations and positional relationships, and are only used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention. Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; may be directly connected or indirectly connected through an intermediate. Relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrases "comprising a" \8230; "does not exclude the presence of additional like elements in a process, method, article, or apparatus that comprises the element. As will be appreciated by one of ordinary skill in the art, the situation may be specified.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (10)

1. An encoder knob detection device, comprising: the power supply terminal is electrically connected with the controller and the detection state indicating element respectively, and the input/output terminal of the controller is electrically connected with the signal state indicating element;

the printed circuit board is further provided with a wiring terminal which is used for being electrically connected with the encoder knob in a matched mode, the first end of the wiring terminal is electrically connected with the input/output terminal of the controller, and the second end of the wiring terminal is used for being electrically connected with the encoder knob in a matched mode.

2. The encoder knob detecting device according to claim 1, wherein the second end of the connecting terminal is provided with a connecting flat cable, and a free end of the connecting flat cable is used for electrically connecting with the encoder knob.

3. The encoder knob detection device of claim 1 or 2, wherein the signal status indicator element is an indicator light.

4. The encoder knob detecting device according to claim 3, wherein the indicator lights comprise a plurality of indicator light arrays arranged on the printed circuit board.

5. The encoder knob detecting device according to claim 3, wherein the number of the indicator lights is the same as the number of the gear stages of the encoder knob.

6. The encoder knob detection device according to claim 4 or 5, wherein the indicator lights are arranged in an annular array on the printed circuit board; and/or the presence of a gas in the atmosphere,

the number of the indicator lamps is 16.

7. The encoder knob detection device according to claim 1, further comprising a current limiting resistor between the signal status indicating element and the input/output terminal of the controller.

8. The encoder knob detection device according to claim 1, wherein a signal status indicating element extension unit is further provided on the printed circuit board, the signal status indicating element extension unit being electrically connected to the input/output terminal of the controller.

9. The encoder knob detection device according to claim 1, wherein an operation status indicator light is further provided on the printed circuit board, the operation status indicator light being electrically connected to the input/output terminal of the controller.

10. The encoder knob detecting device according to claim 1, wherein an output end of the power supply terminal is provided with an energy storage power supply, and the energy storage power supply comprises: the first capacitor is electrically connected to the output end of the power supply terminal, and the second capacitor and the voltage stabilizing diode are respectively connected in parallel to two ends of the first capacitor.

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