CN211240167U - Intelligent medical film observation lamp box control circuit - Google Patents
Intelligent medical film observation lamp box control circuit Download PDFInfo
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- CN211240167U CN211240167U CN201921964665.9U CN201921964665U CN211240167U CN 211240167 U CN211240167 U CN 211240167U CN 201921964665 U CN201921964665 U CN 201921964665U CN 211240167 U CN211240167 U CN 211240167U
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Abstract
The utility model relates to the field of medical equipment, a lamp house control circuit is observed to medical film of intelligence is related to. The technical problem to be solved is to provide an intelligent medical film observation lamp box control circuit which replaces the traditional light source with a semiconductor luminous source LED, has the functions of changing the light color of the lamp box and the like, and has adjustable LED brightness. An intelligent medical film observation lamp box control circuit comprises a touch key, an LED dimming touch module, an LED lamp box and the like; the output end of the touch key is connected with the input end of the LED dimming touch module, and the output end of the LED dimming touch module is connected with the LED lamp box. The utility model discloses in with former traditional light emitting source who observes in the lamp house replace with semiconductor light emitting source LED, adopt a plurality of white light LED luminescent lamps or multiunit three-colour LED luminescent lamp to be the light emitting source, LED is luminous even, stable, not the flicker, and adjusts luminance through the luminous power of control LED light modulation touch module control LED.
Description
Technical Field
The utility model relates to the field of medical equipment, a lamp house control circuit is observed to medical film of intelligence is related to.
Background
The existing medical film observing lamp box is provided with a lamp box frame, a power supply, a light source and a control circuit, most of the common medical film observing lamp boxes use fluorescent lamps or cold cathode fluorescent lamps, and have the defects of large volume, no environmental protection, high power, high energy consumption and short service life, doctors cannot adjust the observed luminosity and chromaticity according to the photosensitive coefficient of the medical film and the definition of an image, and the film waste is caused by insufficient exposure, poor image quality and poor observation effect during film shooting. In order to solve the problems of various film observations such as kilovolt film, green sensing film, laser film and the like, a new solution is necessary to be provided. Therefore, the research on the medical film observing lamp box meeting the market demand has certain positive significance for improving the working efficiency of doctors, and therefore, an intelligent medical film observing lamp box control circuit is provided.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects of single function, large volume, mercury in a light source and narrow application of the prior medical film observation lamp box, the technical problem to be solved is as follows: the intelligent medical film observation lamp box control circuit has the advantages that the semiconductor luminous source LED replaces the traditional light source, the light color of the lamp box is changed, and the LED brightness is adjustable.
The technical scheme is as follows: an intelligent medical film observation lamp box control circuit comprises a power supply module, a touch key, an LED dimming touch module and an LED lamp box, wherein the output end of the touch key is connected with the input end of the LED dimming touch module, the output end of the LED dimming touch module is connected with the LED lamp box, the LED dimming touch module is used for controlling the LED lamp box to work, the touch key is used for controlling the LED dimming touch module to realize the functions of switching, dimming and the like, the LED lamp box comprises 24 LED unit groups, and each LED unit group consists of 1 resistor and 6 LEDs; the LED lamp box is used for observing the medical film, and the power supply module supplies power for the touch keys, the LED dimming touch module and the LED lamp box.
Further, the power module outputs a stable voltage DC12V after being regulated by a three-terminal regulator LM7812 through a switching power supply DC24V, and outputs a stable voltage DC5V after the power voltage of the DC12V is regulated by a three-terminal regulator LM 7805.
The LED dimming touch module further includes an EC022WS, resistors R25-27, an NMOS Q1, and capacitors C4-C6, wherein a pin 2 of the EC022WS is connected to +5V of the power module, a pin 2 of the EC022WS is grounded through a capacitor C4, a pin 4 of the EC022WS is grounded, a pin 3 of the EC022WS is connected to one end of a capacitor C5, the other end of the capacitor C5 is grounded, a pin 3 of the EC022WS is connected to one end of a capacitor C6, the other end of the capacitor C6 is grounded, a pin 5 of the EC 63 WS is connected to one end of a resistor R25, the other end of the resistor R25 is connected to the touch terminal, a pin 7 of the EC022WS is connected to one end of a resistor R WS, one end of the resistor R WS is connected to a gate of the NMOS Q WS, the other end of the resistor R WS is grounded, and the drain of the NMOS WS is connected to the drain of the NMOS WS.
Further, the LED lamp box comprises light emitting diodes VD1-VD144 and resistors R1-R24, wherein the R1 and the VD1-VD6 are connected in series to form a unit group, the LED lamp box comprises 24 unit groups in total, the 24 unit groups are connected in parallel to form two common ends, the 24 resistors form a common end DC24V, and the common end formed by connecting the cathodes of the light emitting diodes in parallel is connected with the drain electrode of an NMOS tube Q1.
Further, the LED dimming touch module further comprises a function selection switch, the function selection switch is connected with the LED dimming touch module, the function selection switch is determined by the input state before the OPT1, the OPT2 and the OPT3 are powered on, and eight functions are selectable.
Further, the function selecting switch comprises a three-position code switch, one end of the three-position code switch is grounded in parallel, the other 6 pins of the three-position code switch are connected with the 6 pins of the EC022WS, the other 5 pins of the three-position code switch are connected with the 8 pins of the EC022WS, and the other 4 pins of the three-position code switch are connected with the 1 pin of the EC022WS, so that the functions of switch control and brightness adjustment are set.
The utility model has the advantages that: compared with the prior art, the beneficial effects of the utility model are as follows: the intelligent control circuit for medical film observing lamp box is to replace traditional luminous source in original observing lamp box with semiconductor luminous source LED and to use several white LED lamps or several three-color LED lamps as luminous source. The 6 LEDs are a unit group, and the unit group can be connected into a whole according to the requirement. All the LED unit groups are connected into a whole according to the polarity and are connected with the control end of the LED dimming touch module, the working power supplies of the LED dimming touch module are all switching power supplies, and the LEDs emit light uniformly and stably without flickering frequency; and the LED dimming touch module is controlled to control the intensity of the light emitted by the LED so as to adjust the illumination intensity.
Drawings
Fig. 1 is a circuit block diagram of the present invention.
Fig. 2 is a schematic circuit diagram of the present invention.
In the figure: 1: power module, 2: touch key, 3: LED dimming touch module, 4: LED lamp box, 5: and a function selection switch.
Detailed Description
The present invention now will be described more fully hereinafter with reference to the accompanying drawings, in which currently preferred embodiments of the invention are shown. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided for completeness and fully convey the scope of the invention to the skilled person.
Example 1
An intelligent medical film observing light box control circuit is shown in figures 1-2 and comprises a power module 1, a touch key 2, an LED dimming touch module 3 and an LED light box 4, wherein the output end of the touch key 2 is connected with the input end of the LED dimming touch module 3, the output end of the LED dimming touch module 3 is connected with the LED light box 4, the LED dimming touch module 3 is used for controlling the LED light box 4 to work, the touch key 2 is used for controlling the LED dimming touch module 3 to realize the functions of switching, dimming and the like, the LED light box 4 comprises 24 LED unit groups, and each LED unit group comprises 1 resistor and 6 LEDs; the LED lamp box 4 is used for observing medical films, and the power supply module 1 supplies power to the touch key 2, the LED dimming touch module 3 and the LED lamp box 4.
The power supply module 1 outputs a stable voltage DC12V after being stabilized by a three-terminal regulator LM7812 through a switching power supply DC24V, and the stable voltage DC5V is output after the voltage of a DC12V power supply is stabilized by a three-terminal regulator LM 7805.
The LED dimming touch module 3 comprises an EC022WS, resistors R25-27, an NMOS tube Q1 and capacitors C4-C6, wherein a pin 2 of the EC022WS is connected with a power module 1+5V, a pin 2 of the EC022WS is grounded through a capacitor C4, a pin 4 of the EC022WS is grounded, a pin 3 of the EC022WS is connected with one end of a capacitor C5, the other end of the capacitor C5 is grounded, a pin 3 of the EC022WS is connected with one end of a capacitor C6, the other end of the capacitor C6 is grounded, a pin 5 of the EC022WS is connected with one end of a resistor R25, the other end of the resistor R25 is connected with a touch terminal, a pin 7 of the EC022WS is connected with one end of a resistor R WS, one end of the resistor R WS is connected with a gate of the NMOS tube Q WS, one end of the resistor R WS is grounded, and the drain of the NMOS tube Q WS is used as a control drain of the NMOS tube Q WS.
The LED lamp box 4 comprises light emitting diodes VD1-VD144 and resistors R1-R24, wherein the R1 and the VD1-VD6 are connected in series to form a unit group, the total 24 unit groups of the LED lamp box 4 are formed by connecting 24 unit groups in parallel to form two common ends, the common end DC24V is formed by 24 resistors, and the common end formed by connecting the cathodes of the light emitting diodes in parallel is connected with the drain electrode of an NMOS tube Q1.
After the medical film observation lamp box control circuit is powered on, the pins OP1, OP2 and OP3 in the LED dimming touch chip EC022WS are all suspended, and when the medical film observation lamp box control circuit is powered on initially, the LED dimming touch module 3 outputs full low level, and the LED lamp box 4 is not bright. When the touch key 2 is pressed for a short time (the touch duration is less than 550ms), the LED dimming touch module 3 can realize on-off control of the LED lamp box 4. The touch key 2 is pressed for a short time, the LED dimming touch module 3 outputs a high level, and the LED lamp box 4 is bright; and the touch key 2 is pressed for a short time again, the LED dimming touch module 3 outputs a low level, and the LED lamp box 4 is turned off. Touching the key 2 multiple times, and so on. When the LED lamp box 4 is turned on or turned off, no brightness buffer exists. And the brightness of the LED lamp box 4 is fixed to the highest brightness when the LED lamp box is turned on every time, and the high-level duty ratio of the corresponding output PWM signal is 100%. And when the touch key 2 is pressed for a long time (the touch duration is longer than 550ms), the LED dimming touch module 3 realizes stepless brightness adjustment of the LED lamp box 4. The LED dimming touch module 3 controls the brightness of the LED lamp box 4 to gradually decrease once the touch key 2 is pressed for a long time, the LED lamp box 4 stops at the current brightness when the LED lamp box is loosened, and if the touch key 2 is pressed for a long time for more than 3 seconds, the LED dimming touch module 3 controls the brightness of the LED lamp box 4 to be not changed after the brightness of the LED lamp box 4 reaches the lowest value; and the touch key 2 is pressed for a long time again, the LED dimming touch module 3 controls the brightness of the LED lamp box 4 to gradually rise, the LED lamp box 4 stops at the current brightness when the LED lamp box is loosened, and if the touch key 2 is pressed for a long time for more than 3 seconds, the LED dimming touch module 3 controls the brightness of the LED lamp box 4 to be not changed after reaching the maximum brightness. The touch key 2 is pressed for a long time for a plurality of times, and the process is repeated. The duty ratio of the PWM signal of the lowest brightness is 2%, and the highest brightness is 100%. And under the condition that the LED lamp box 4 is not bright, the lamp can be turned on by pressing the touch key 2 for a long time. In this case, after the touch key 2 is pressed, the LED dimming touch module 3 controls the LED light box 4 to light up at the highest brightness, and if the touch key 2 is not released after more than 550ms, the LED dimming touch module 3 controls to start stepless dimming downward.
Example 2
An intelligent medical film observation lamp box control circuit is shown in fig. 1-2, and further comprises a function selection switch 5, wherein the function selection switch 5 is connected with an LED dimming touch module 3, the function selection switch 5 is determined by input states before pins of an OPT1 pin, an OPT2 pin and an OPT3 pin are powered on, and eight functions are selectable in total.
After lamp house control circuit was observed to medical film was powered on, OP1 pin ground connection in the LED touch chip EC022WS of adjusting luminance, OP2, OP3 pin is unsettled, the first ground connection of tribit dial switch, the first ground connection of function selection switch 5, under the condition that power module 1 does not cut off the power supply promptly, press touch button 2 for a short time at every turn, LED touch module 3 control LED lamp house 4 of adjusting luminance, luminance when LED lamp house 4 closed the lamp can be preserved by memory, when touch button 2 was lighted next time, LED touch module 3 of adjusting luminance can regard this luminance as LED lamp house 4 initial luminance. The direction of first dimming after the LED lamp box 4 is turned on is determined by the previously memorized brightness value, and if the memorized brightness value is more than 50%, the LED dimming touch module 3 controls the brightness of the LED lamp box 4 to dim downwards; if the memorized brightness value is less than 50%, the LED dimming touch module 3 controls the brightness of the LED lamp box 4 to dim upwards. The LED dimming control circuit is powered on again after initial power-on or power-off, the lamp is turned on for the first time, the initial brightness of the LED lamp box 4 is fixed to be 100% of the highest brightness, and the LED dimming touch module 3 controls the LED lamp box 4 to be fixed for downward dimming during first dimming.
The LED dimming touch module 3 is EC022WS, and EC022WS is a single-channel touch chip integrating a touch key 2, a switch, an LED light switch and brightness adjustment. The chip can realize the functions of the single-way touch key 2 and the single-way touch switch, and the touch switch control and the brightness adjustment of the LED light. Has the following functional characteristics and advantages: the brightness of the light can be adjusted at will according to the needs, the selection range is wide, and the operation is simple and convenient. The touch function can be realized under the condition of medium (such as glass, acrylic, plastic, ceramic and the like) isolation protection, and the safety is high. The application voltage range is wide, and the voltage can be selected at will between 2.4V and 5.5V. The application circuit is simple, the number of peripheral devices is small, the processing is convenient, and the cost is low. The frequency of the output PMW signal is controlled to reach 20KHz, and the non-stroboscopic effect is excellent. The anti-interference characteristic is good. The chip-level ESD can reach +/-4 KV, and the EFT can reach more than +/-4 KV; under the condition of short-distance and multi-angle mobile phone interference, the touch response sensitivity and reliability are not affected. The TI touch input corresponds to SO lamplight control output, the on-off and brightness change of the LED lamp are controlled by modulating the duty ratio of the PWM output signal, and the frequency of the PWM signal is fixed to be about 20 KHz. Eight functions are selected, and are determined by input states before the OPT1, the OPT2 and the OPT3 are powered on. The method comprises the following specific steps: OP1, OP2, OP3 are all floating: LED touch stepless dimming without brightness memory and brightness buffer. OP1 is grounded, OP2& OP3 are floating: LED touch stepless dimming with brightness memory and without brightness buffer. OP1& OP3 is floating, OP2 is grounded: LED three-segment touch dimming, high → middle → low → off, and circulation. OP1& OP2 ground, OP3 floating: LED three-segment touch dimming, low → middle → high → off, and circulation. OP1& OP2 is floating, OP3 is grounded: and the key 2 is touched by a single way, and the key outputs low level. OP1 is floating, OP2& OP3 are grounded: and the key 2 is touched by a single way, and the key outputs high level. OP1& OP3 ground, OP2 floating: and the single-key touch switch is electrified to output high level. OP1, OP2, OP3 are all grounded: and the single-key touch switch is electrified to output low level. When the difference of dielectric materials, thicknesses and the like is large, the touch sensitivity can be adjusted by adjusting the capacitance of C4 between VC and GND. The suggested value range is 102-104, the typical value is 103, and in the range, the capacitance value of the capacitor is larger, the sensitivity is higher, and the capacitance value of the capacitor is smaller, and the sensitivity is lower. In the aspect of capacitor materials, polyester capacitors are recommended to be selected during plug-in, NPO capacitors are recommended to be selected preferentially during chip mounting, X7R capacitors can be selected, and Y5V ceramic chip capacitors cannot be used. The following data of parameters are only for reference, and the actual data shall control.
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 person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within 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 (6)
1. The intelligent medical film observation lamp box control circuit is characterized by comprising a power module (1), a touch key (2), an LED dimming touch module (3) and an LED lamp box (4), wherein the output end of the touch key (2) is connected with the input end of the LED dimming touch module (3), the output end of the LED dimming touch module (3) is connected with the LED lamp box (4), the LED dimming touch module (3) is used for controlling the LED lamp box (4) to work, the touch key (2) is used for controlling the LED dimming touch module (3) to realize the functions of switching and dimming, the LED lamp box (4) consists of 24 LED unit groups, and each LED unit group consists of 1 resistor and 6 LEDs; the LED light box (4) is used for observing medical films, and the power supply module (1) supplies power for the touch key (2), the LED dimming touch module (3) and the LED light box (4).
2. The intelligent medical film observing light box control circuit as claimed in claim 1, wherein the power supply module (1) outputs a stable voltage DC12V after being stabilized by a switching power supply DC24V and then by a three-terminal regulator LM7812, and outputs a stable voltage DC5V after being stabilized by a DC12V power supply voltage by a three-terminal regulator LM 7805.
3. The intelligent medical film observation lamp box control circuit according to claim 2, wherein the LED dimming touch module (3) comprises EC022WS, resistors R25-27, an NMOS tube Q1 and capacitors C4-C6, the 2 pin of EC022WS is connected with the power module (1) +5V, the 2 pin of EC022WS is grounded through a capacitor C4, the 4 pin of EC022WS is grounded, the 3 pin of EC022WS is connected with one end of a capacitor C5, the other end of the capacitor C5 is grounded, the 3 pin of EC022WS is connected with one end of a capacitor C6, the other end of the capacitor C6 is grounded, the 5 pin of EC022WS is connected with one end of a resistor R25, the other end of the resistor R25 is connected with the touch terminal, the 7 pin of EC022WS is connected with one end of a resistor R26, one end of the resistor R26 is connected with the grid of the NMOS tube Q1, one end of the resistor R1 is connected with the grid of the NMOS tube Q1, the source tube Q1 is grounded, the drain electrode of the NMOS tube Q1 is used as a control pin.
4. The intelligent medical film observing light box control circuit as claimed in claim 3, wherein the LED light box (4) comprises light emitting diodes VD1-VD144 and resistors R1-R24, the R1 and VD1-VD6 are connected in series to form a unit group, the LED light box (4) has 24 unit groups in total, the 24 unit groups are connected in parallel to form two common ends, the common end DC24V is formed by the 24 resistors, and the common end formed by the parallel connection of the cathodes of the light emitting diodes is connected with the drain of an NMOS tube Q1.
5. The intelligent medical film observing light box control circuit as claimed in claim 4, further comprising a function selection switch (5), wherein the function selection switch (5) is connected with the LED dimming touch module (3), the function selection switch (5) is determined by the input state before power-on of the OPT1, OPT2 and OPT3 pins, and eight functions are selectable.
6. The intelligent medical film observing light box control circuit as claimed in claim 5, wherein the function selecting switch (5) comprises a three-position switch, one end of the three-position switch is grounded in parallel, the other 6 feet of the three-position switch are connected with the 6 feet of the EC022WS, the other 5 feet of the three-position switch are connected with the 8 feet of the EC022WS, and the other 4 feet of the three-position switch are connected with the 1 foot of the EC022WS, so as to set the functions of switch control and brightness adjustment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921964665.9U CN211240167U (en) | 2019-11-14 | 2019-11-14 | Intelligent medical film observation lamp box control circuit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921964665.9U CN211240167U (en) | 2019-11-14 | 2019-11-14 | Intelligent medical film observation lamp box control circuit |
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| CN211240167U true CN211240167U (en) | 2020-08-11 |
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| CN201921964665.9U Expired - Fee Related CN211240167U (en) | 2019-11-14 | 2019-11-14 | Intelligent medical film observation lamp box control circuit |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112638003A (en) * | 2021-01-11 | 2021-04-09 | 伍仁杰 | Body-building instrument circuit for medical care |
| CN112994210A (en) * | 2021-03-08 | 2021-06-18 | 吴杰 | Solar energy power supply ultraviolet therapeutic instrument control circuit |
-
2019
- 2019-11-14 CN CN201921964665.9U patent/CN211240167U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112638003A (en) * | 2021-01-11 | 2021-04-09 | 伍仁杰 | Body-building instrument circuit for medical care |
| CN112994210A (en) * | 2021-03-08 | 2021-06-18 | 吴杰 | Solar energy power supply ultraviolet therapeutic instrument control circuit |
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Effective date of registration: 20211018 Address after: 225000 No. 1-29 Jiangning Road, Xinji Town, Yizheng City, Yangzhou City, Jiangsu Province Patentee after: Yizheng Rongrong electromechanical Co.,Ltd. Address before: No. 55, Fengan village, Xiamei Town, Nan'an City, Quanzhou City, Fujian Province, 362301 Patentee before: QUANZHOU XIEYUAN ARTS & CRAFTS Co.,Ltd. |
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Granted publication date: 20200811 Termination date: 20211114 |
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